1. The document describes the growth of (E)-2-nitro-3-phenylallyl hydrogen sulfate crystals using Baylis–Hillman derivatives.
2. The crystals were successfully grown using a low temperature solution growth method and characterized through techniques like X-ray diffraction, infrared spectroscopy, and powder X-ray diffraction.
3. These characterization techniques were used to analyze the crystal structure and confirm the identity and purity of the synthesized compound.
Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synth...ijtsrd
Cobalt ferrite (CoFe2O4), an inverse spinal ferrite has high permeability, good saturation 1magnetization and no preferred direction of magnetization, high Curie temperature, and high electromagnetic performance. In the present work 0.2M cobalt nitrate 0.3M ferric nitrate and 0.4 M citric acid is used to synthesis cobalt ferrite nanoparticle by sol-gel technique. As the magnetic property depends on the grain size of the synthesized nanoparticle, metal nitrate to citric acid ratio is varied from 0.8, 0.6 and 0.4 and the structural, functional morphological and magnetic characteristics are analyzed. The structural analysis shows the decrease in the average crystallite from 37 to 27nm when CAMN ratio decreases from 0.8 to 0.4. The strain is directly proportional to dislocation density and it reflects the growth of the average grain size, and in the present study, it reflects the same. The calculated lattice parameter is found to be close to 8.373 Ã… and the volume of the cell is found to be 5.63x10-28 m is close to the standard value for the cobalt ferrite nanoparticles. From the EDS spectrum, the presence of Co, Fe, and O in the synthesized nanoparticles are noted. Functional groups analysis by FTIR shows the presence of organic sources. Surface morphology by Scanning electron microscope shows the distribution of spherical sized nanoparticles agglomerated in different sizes and the grain size calculated by image J software are close to the calculated value by Scherrer formula from XRD. Chitra | T Raguram | K S Rajni"Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synthesized by Sol-Gel Technique" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15871.pdf http://www.ijtsrd.com/physics/other/15871/microstructural-and-magnetic-properties-of-cobalt-ferrite-nanoparticles-synthesized-by-sol-gel-technique/chitra
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Synthesis & Bio-Evaluation of 4-Amino-5-Benzyl-2, 4-Dihydro-3H-1, 2, 4-Triazo...IJERA Editor
Synthesis of 4-amino-5-benzyl-2,4-dihydro-3H-1,2,4-triazole-3-thione Capped Silver NanoParticles by a simple procedure. Spherical shaped Capped Ag-NPs with average size of 14.65 nm are obtained by the treatment of aqueous silver ions with hot ethanolic solution of 4-amino-5-benzyl-2,4-dihydro-3H-1,2,4-triazole-3-thione as Stabilizing/Reducing agent. The Nanoparticles are characterized using TEM, XRD and FTIR studies. The synthesized Nanoparticles were tested for in vitro antimicrobial activity at concentrations of 50, 100, 200 μg /ml. The Nanoparticles showed good activity, nearly equal to the inhibition zone value of ciprofloxacin, against the E.coli bacteria. For the antifungal activity, the compound showed equipotent activity against A.niger.
Preparation, Structure, and Characterization of Nd2mo2o9 fast Oxide Ion Condu...IJARIIT
The structure and ion conductivity of Nd2Mo2O9powders were synthesized by using Nd(NO2)3, MoO3, and aspartic acid (fuel) in assisted combustion method with heating at 550˚C for 6 hours. The thermal decomposition, phase identification, morphology, ionic conductivity of the samples were studied by TGA/DTA, XRD and SEM four probe D.C. method respectively. The formation of Nd2Mo2O9 was confirmed by FTIR studies. The synthesis and crystallization were followed by thermochemical techniques (TGA/DTA) studies. The synthesized materials showed reasonable ionic conductivity. These results indicate that assisted combustion method is a promising method to prepare nanocrystalline Nd2Mo2O9 for solid oxide fuel cell.
Influence of Biofield Treatment on Physical and Structural Characteristics of...albertdivis
Barium oxide (BaO) and zinc sulfide (ZnS) are well known for their applications in electrical, optical and chemical industries. The present study was aimed to evaluate the impact of biofield treatment on the structural and physical properties of BaO and ZnS powder.
Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synth...ijtsrd
Cobalt ferrite (CoFe2O4), an inverse spinal ferrite has high permeability, good saturation 1magnetization and no preferred direction of magnetization, high Curie temperature, and high electromagnetic performance. In the present work 0.2M cobalt nitrate 0.3M ferric nitrate and 0.4 M citric acid is used to synthesis cobalt ferrite nanoparticle by sol-gel technique. As the magnetic property depends on the grain size of the synthesized nanoparticle, metal nitrate to citric acid ratio is varied from 0.8, 0.6 and 0.4 and the structural, functional morphological and magnetic characteristics are analyzed. The structural analysis shows the decrease in the average crystallite from 37 to 27nm when CAMN ratio decreases from 0.8 to 0.4. The strain is directly proportional to dislocation density and it reflects the growth of the average grain size, and in the present study, it reflects the same. The calculated lattice parameter is found to be close to 8.373 Ã… and the volume of the cell is found to be 5.63x10-28 m is close to the standard value for the cobalt ferrite nanoparticles. From the EDS spectrum, the presence of Co, Fe, and O in the synthesized nanoparticles are noted. Functional groups analysis by FTIR shows the presence of organic sources. Surface morphology by Scanning electron microscope shows the distribution of spherical sized nanoparticles agglomerated in different sizes and the grain size calculated by image J software are close to the calculated value by Scherrer formula from XRD. Chitra | T Raguram | K S Rajni"Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synthesized by Sol-Gel Technique" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15871.pdf http://www.ijtsrd.com/physics/other/15871/microstructural-and-magnetic-properties-of-cobalt-ferrite-nanoparticles-synthesized-by-sol-gel-technique/chitra
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Synthesis & Bio-Evaluation of 4-Amino-5-Benzyl-2, 4-Dihydro-3H-1, 2, 4-Triazo...IJERA Editor
Synthesis of 4-amino-5-benzyl-2,4-dihydro-3H-1,2,4-triazole-3-thione Capped Silver NanoParticles by a simple procedure. Spherical shaped Capped Ag-NPs with average size of 14.65 nm are obtained by the treatment of aqueous silver ions with hot ethanolic solution of 4-amino-5-benzyl-2,4-dihydro-3H-1,2,4-triazole-3-thione as Stabilizing/Reducing agent. The Nanoparticles are characterized using TEM, XRD and FTIR studies. The synthesized Nanoparticles were tested for in vitro antimicrobial activity at concentrations of 50, 100, 200 μg /ml. The Nanoparticles showed good activity, nearly equal to the inhibition zone value of ciprofloxacin, against the E.coli bacteria. For the antifungal activity, the compound showed equipotent activity against A.niger.
Preparation, Structure, and Characterization of Nd2mo2o9 fast Oxide Ion Condu...IJARIIT
The structure and ion conductivity of Nd2Mo2O9powders were synthesized by using Nd(NO2)3, MoO3, and aspartic acid (fuel) in assisted combustion method with heating at 550˚C for 6 hours. The thermal decomposition, phase identification, morphology, ionic conductivity of the samples were studied by TGA/DTA, XRD and SEM four probe D.C. method respectively. The formation of Nd2Mo2O9 was confirmed by FTIR studies. The synthesis and crystallization were followed by thermochemical techniques (TGA/DTA) studies. The synthesized materials showed reasonable ionic conductivity. These results indicate that assisted combustion method is a promising method to prepare nanocrystalline Nd2Mo2O9 for solid oxide fuel cell.
Influence of Biofield Treatment on Physical and Structural Characteristics of...albertdivis
Barium oxide (BaO) and zinc sulfide (ZnS) are well known for their applications in electrical, optical and chemical industries. The present study was aimed to evaluate the impact of biofield treatment on the structural and physical properties of BaO and ZnS powder.
Synthesis of 2-aminocyclopent-1-ene-1-carbodithioic acid (ACA) Capped Silver ...IJERA Editor
The present work deals with the formation, morphology and photophysical activity of the 2-aminocyclopent-1-ene-1-carbodithioic acid (ACA) Capped Silver nanoparticles via chemical reduction method. The method utilizes a simple chemical reaction of silver idodide and sodium borohydride. The advantages of this method are ease of preparation, convenience in use and especially, that the obtained silver nano particles are uniform in their shapes and sizes. This is important for fluorescence & bio-evolution measurements. Furthermore, UV-visible (UV-vis) spectroscopy is employed to monitor the formation process of the nano particles and to determine the optimum conditions for the preparation of stable and highly fluorescence-active silver colloids. Specifically, we observed changes in the shapes of the silver nano particles during the formation. This may be helpful in understanding the growth of the nano particles and creates a new dimension in controlling the shapes of the nano particles.SEM, TEM and XRD studies are carried out. The suitability of ACA capped Ag-NPs as Biomarkers is also Tested by Fluorescence study.
Growth, Structure and Physical Properties of Tetraaqua Bismaleatocobalt (II) ...IOSR Journals
Tetraaqua bismaleatocobalt(II) crystals are grown by the controlled ionic diffusion in hydrosilica gel. The functional groups present in the crystal are identified using FTIR spectrum. The compound crystallizes in the triclinic system with space group P-1. The thermogravimetric studies revealed a three stage decomposition scheme. The polarization mechanism of the compound is explored using the dielectric measurements. The optical band gap of the material is found to be 2.4 eV from diffuse reflectance spectroscopy (DRS). The narrow magnetic hysteresis loop and structural considerations indicate the weak ferromagnetic behaviour of the material.
Photo-induced reduction of CO2 using a magnetically separable Ru-CoPc@TiO2@Si...Pawan Kumar
An efficient photo-induced reduction of CO2 using magnetically separable Ru-CoPc@TiO2@SiO2@Fe3O4
as a heterogeneous catalyst in which CoPc and Ru(bpy)2phene complexes were attached to a solid
support via covalent attachment under visible light is described. The as-synthesized catalyst was characterized
by a series of techniques including FTIR, UV-Vis, XRD, SEM, TEM, etc. and subsequently tested for
the photocatalytic reduction of carbon dioxide using triethylamine as a sacrificial donor and water as a
reaction medium. The developed photocatalyst exhibited a significantly higher catalytic activity to give a
methanol yield of 2570.78 μmol per g cat after 48 h.
Growth, structural and optical studies of pure and kbr doped adp crystalseSAT Journals
Abstract Pure and KBr doped crystals of ADP were grown by slow evaporation technique from the supersaturated solution of ADP at room temperature. The tetragonal structure of the grown crystals was observed by powder X-ray diffraction analysis. FTIR spectra revealed the presence of functional groups present in the grown crystals. The UV-Vis spectral analysis shows high transparency in the entire visible region. The band gap value of the pure ADP crystal was found assuming indirect transition. Key Words: ADP, Powder XRD, FTIR, Band gap
Biofabrication of Silver Nanoparticles Using the Aqueous Extract of Weaver An...BRNSS Publication Hub
Environment has created creative and well-designed ways for developing nanomaterials having intriguing properties. Nanotechnology is having hope to open new avenues to combat and avert diseases using atomic-level fabrication of materials. Herein, we demonstrate the fabrication of silver nanoparticles using aqueous extract of weaver ant’s (Oecophylla smaragdina) nest and its characterization using valuable techniques such as ultraviolet-visible spectroscopy, X-ray diffraction analysis, scanning electron microscopy analysis, Fourier-transform infrared spectroscopy, and atomic force microscopy analysis. Cytotoxicity of newly synthesized silver nanoparticles was analyzed using the Vero cells. By analyzing the results critically, it is hypothesized that synthesis and stabilization of silver nanoparticles were achieved using the molecules present in the aqueous extract of O. smaragdina nest.
GAMMA RADIATION-INDUCED TRANSFORMATIONAL CHANGE IN IR SPECTRUM OF EBHA NEMATI...IAEME Publication
Gamma ray irradiation technique is the powerful technique to modify the dielectric and electro-optical properties of liquid crystals. It p refers than any other modification technique because no catalysts or additives are required to initiate the reaction. The present paper reports a comparative study of IR spectrum for both irradiated and unirradiated EBHA NLC. The dielectric spectrum and ionic conductivity is also evaluated and well explained in this paper. In addition to this, we have al so suggested the concept of the peak data information graph for better understanding of IR spectrum.
Synthesis of 2-aminocyclopent-1-ene-1-carbodithioic acid (ACA) Capped Silver ...IJERA Editor
The present work deals with the formation, morphology and photophysical activity of the 2-aminocyclopent-1-ene-1-carbodithioic acid (ACA) Capped Silver nanoparticles via chemical reduction method. The method utilizes a simple chemical reaction of silver idodide and sodium borohydride. The advantages of this method are ease of preparation, convenience in use and especially, that the obtained silver nano particles are uniform in their shapes and sizes. This is important for fluorescence & bio-evolution measurements. Furthermore, UV-visible (UV-vis) spectroscopy is employed to monitor the formation process of the nano particles and to determine the optimum conditions for the preparation of stable and highly fluorescence-active silver colloids. Specifically, we observed changes in the shapes of the silver nano particles during the formation. This may be helpful in understanding the growth of the nano particles and creates a new dimension in controlling the shapes of the nano particles.SEM, TEM and XRD studies are carried out. The suitability of ACA capped Ag-NPs as Biomarkers is also Tested by Fluorescence study.
Growth, Structure and Physical Properties of Tetraaqua Bismaleatocobalt (II) ...IOSR Journals
Tetraaqua bismaleatocobalt(II) crystals are grown by the controlled ionic diffusion in hydrosilica gel. The functional groups present in the crystal are identified using FTIR spectrum. The compound crystallizes in the triclinic system with space group P-1. The thermogravimetric studies revealed a three stage decomposition scheme. The polarization mechanism of the compound is explored using the dielectric measurements. The optical band gap of the material is found to be 2.4 eV from diffuse reflectance spectroscopy (DRS). The narrow magnetic hysteresis loop and structural considerations indicate the weak ferromagnetic behaviour of the material.
Photo-induced reduction of CO2 using a magnetically separable Ru-CoPc@TiO2@Si...Pawan Kumar
An efficient photo-induced reduction of CO2 using magnetically separable Ru-CoPc@TiO2@SiO2@Fe3O4
as a heterogeneous catalyst in which CoPc and Ru(bpy)2phene complexes were attached to a solid
support via covalent attachment under visible light is described. The as-synthesized catalyst was characterized
by a series of techniques including FTIR, UV-Vis, XRD, SEM, TEM, etc. and subsequently tested for
the photocatalytic reduction of carbon dioxide using triethylamine as a sacrificial donor and water as a
reaction medium. The developed photocatalyst exhibited a significantly higher catalytic activity to give a
methanol yield of 2570.78 μmol per g cat after 48 h.
Growth, structural and optical studies of pure and kbr doped adp crystalseSAT Journals
Abstract Pure and KBr doped crystals of ADP were grown by slow evaporation technique from the supersaturated solution of ADP at room temperature. The tetragonal structure of the grown crystals was observed by powder X-ray diffraction analysis. FTIR spectra revealed the presence of functional groups present in the grown crystals. The UV-Vis spectral analysis shows high transparency in the entire visible region. The band gap value of the pure ADP crystal was found assuming indirect transition. Key Words: ADP, Powder XRD, FTIR, Band gap
Biofabrication of Silver Nanoparticles Using the Aqueous Extract of Weaver An...BRNSS Publication Hub
Environment has created creative and well-designed ways for developing nanomaterials having intriguing properties. Nanotechnology is having hope to open new avenues to combat and avert diseases using atomic-level fabrication of materials. Herein, we demonstrate the fabrication of silver nanoparticles using aqueous extract of weaver ant’s (Oecophylla smaragdina) nest and its characterization using valuable techniques such as ultraviolet-visible spectroscopy, X-ray diffraction analysis, scanning electron microscopy analysis, Fourier-transform infrared spectroscopy, and atomic force microscopy analysis. Cytotoxicity of newly synthesized silver nanoparticles was analyzed using the Vero cells. By analyzing the results critically, it is hypothesized that synthesis and stabilization of silver nanoparticles were achieved using the molecules present in the aqueous extract of O. smaragdina nest.
GAMMA RADIATION-INDUCED TRANSFORMATIONAL CHANGE IN IR SPECTRUM OF EBHA NEMATI...IAEME Publication
Gamma ray irradiation technique is the powerful technique to modify the dielectric and electro-optical properties of liquid crystals. It p refers than any other modification technique because no catalysts or additives are required to initiate the reaction. The present paper reports a comparative study of IR spectrum for both irradiated and unirradiated EBHA NLC. The dielectric spectrum and ionic conductivity is also evaluated and well explained in this paper. In addition to this, we have al so suggested the concept of the peak data information graph for better understanding of IR spectrum.
Mems based optical sensorMEMS BASED OPTICAL SENSOR FOR SALINITY MEASUREMENTprj_publication
In this paper, we purpose a two dimensional photonic crystal based optical sensor for
salinity measurement. The salinity percentage of is sea water changes as we go down the sea
water surface. This gives change to the index of refraction of the sea water at the different
levels. Thus the salinity percentage of sea water can be detected by measuring this change in the
effective refractive index of sea water. In this paper, the effective refractive index method has
been used for the detection of the salinity concentration from (0-40%). The slab waveguide is
designed and the effective refractive changed is captured. Even as the refractive index change
for the change in salinity of the sea water, is very small, the effective index change is visible,
making the sensor very sensitive.
Morphology and characterization of srxcu1 xo [x=0.1]eSAT Journals
Abstract The application of Nanostructured materials is enormous as their physical and chemical properties depend upon size. Here an attempt is made first time to synthesis (Srx Cu1-xO) nanoparticles by sol–gel method. Sr(No3)2and Cu(No3)2.3H2O were taken as starting material. Ethanol, distilled water and PVA are mixed with these powders of nitrates and solution was stirred by magnetic stirrer at a temperature of 80 0C till a gel was formed. It was then dried at low temperature and finally calcinated at 400 0C for four hours. XRD of the sample shows its crystalline nature and particle size was determined to be 34nm by Debye Schherrer formula. The FTIR study shows two broad peak at 1455 cm-1and 532 cm-1. The UV-VIS analysis shows a absorption peak at 202nm .The TEM images clearly shows the individual nanoparticles having diameter less than 20 nm. In one image a nano rod is also visible whose further study is also required. Keywords:-nano materials, XRD, FTIR, TEM, UV-VIS, band gap, strontium
ANALYSIS OF MICROSTRUCTURE OF FUMED SILICA REINFORCED POLYESTER COMPOSITESIAEME Publication
Fumed silica reinforced unsaturated polyester compo sites are developed by simple mechanical stirring and compression molding technique respectively. Investigation on morphological characteristics of fumed silica reinforced polyester composite is presented. The effect of fumed silica taken as different weight fractions and their interactive influences on the morphological characteristics of these composites h as been studied. The results showed that amorphosity is inversely proportional to crystallinity with increasing the filler loading. The study revealed t hat fumed silica particle addition in polyester composite has dramatic effect on the microstructure of polyester fumed silica composites.
Porosity and the Magnetic Properties of Aluminium Doped Nickel Ferriteijtsrd
The nanocrystalline particles of Aluminium Al doped nickel Ni ferrites with general formula NiAlxFe2 xO4 x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 were synthesized by sol gel auto combustion technique. The formation of single phase cubic spinel was confirmed by X ray diffraction analyses. Morphological features of the samples are studied by Scanning Electron Microscopy SEM to examine the particle size, shape and homogeneity of sample. The magnetic hysteresis graphs were obtained to understand their magnetic behaviours. The relative permeability µr of AlNi ferrite samples shows a decrease for all samples as Al content increases. Sandar Oo | Ye Wint Tun | Shwe Zin Oo "Porosity and the Magnetic Properties of Aluminium Doped Nickel Ferrite" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25240.pdfPaper URL: https://www.ijtsrd.com/physics/other/25240/porosity-and-the-magnetic-properties-of-aluminium-doped-nickel-ferrite/sandar-oo
Growth and Characterization of Morpholium Cadmium Acetoperchlorate Single Cry...IJERA Editor
In the search for novel crystal with promising nonlinear optical properties an attempt is made to grow
morpholium cadmium aceto-perchlorate single crystals. The title compound is synthesized by slow evaporation
technique at room temperature. The powder X-ray diffraction pattern has been recorded and the various planes
of reflections are identified. The transmittance spectrum of the crystal in the UV–Vis region has been obtained.
Using the FTIR spectrum, the vibrational modes of the crystal is analysed and the presence of cadmium in the
crystal is confirmed. Thermogravimetric analysis and differential thermal analysis studies have been done to
assess the thermal stability of the grown crystal. The dielectric measurement for the crystal is carried out in the
range of 50 Hz to 5 MHz for three different temperatures 40ºC, 80ºC and 120ºC to study the electrical nature of
the grown crystal. The nonlinear optical property of the grown crystal is confirmed
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
2. Growth of (E)-2-Nitro-3-Phenylallyl Hydrogen Sulfate Using Baylis–Hillman Derivatives
Crystals
http://www.iaeme.com/IJARET/index.asp 123 editor@iaeme.com
realization of most of the recent electronic applications, are also considered in the
present study.21-25
The present materials are selected to increase the electron transformation, which
increases the OSO3H and CH2 stretching vibration, and also to reduce the NO2
-
bending vibration for obtaining better nonlinear optical activities. This work specially
concentrates on higher environmental stability and greater diversity of tuneable
electronic properties for economic and eco-friendly operations. In the present chapter
synthesis growth and characterization of new NLO crystal (E)-2-nitro-3-phenylprop-
2-ene-1-sulfonic acid is discussed in detail
2. RESULTS AND DISCUSSIONS
To a stirred solution of (E)-2-nitro-3-phenylprop-2-en-1-ol (0.96 g, 4 mmol) in
CH2Cl2 (15 mL), r.t.. The mixture was cooled to 0 °C and then concd H2SO4
(0.05mL) was added drop wise. The mixture was stirred well at r.t. for about 1 h. On
completion of the reaction (TLC analysis), the mixture was poured into H2O and the
aqueous layer was extracted with EtOAc (3 × 10mL). The combined organic layers
were washed with brine (10 mL) and concentrated. The crude product thus obtained
was purified by column chromatography (EtOAc–hexanes) to provide (0.60 g, 62%)
as a colorless crystalline solid; mp 76–78 °C. is represented in the following equation:
By using the low temperature solution growth method, large single crystal (E)-2-
nitro-3-phenylprop-2-ene-1-sulfonic acid was successfully grown from supersaturated
solution. The grown single crystals has been harvested and subjected to different
characterization methods.
3. X-RAY DIFFRACTION ANALYSIS
Characterization of a material can be defined as a complete description of its physical
and chemical properties. A through and extensive characterization of a single crystal
is very difficult because it requires variety of tests using a number of sophisticated
instruments and accurate analysis of the results of these tests and confirmation.
Characterization of the grown crystals facilitates an understanding of the quality
of crystals and their feasibility for technical applications. More over characterization
of the grown crystals forms an integral part of the growth studies to be performed by
the crystal grower.
Characterization of a crystal essentially consists of an evaluation of the chemical
composition. In addition to the evaluation of these parameters characterization also
involves the determination of their effect on the physical properties of the crystal.
4. X-RAY DIFFRACTION ANALYSIS
The discovery of X-rays by crystals led to the development of a powerful and precise
method for the exploration of the internal arrangement of atoms in a crystal.
A crystal might be regarded as a three dimensional diffraction grating for
energetic electromagnetic waves of wavelength comparable with the atomic spacing
3. Anandhan Vidya and Nagppan. Sivakumar
http://www.iaeme.com/IJARET/index.asp 124 editor@iaeme.com
and that a diffraction pattern should provide information about the regular
arrangement of atoms.
X-rays are still the principal source of new information about the crystallography
of solids and are supplemented by electron and neutron diffraction.
It is well known that when a beam of light passes through a screen containing a
regular pattern of holes interference phenomenon may be observed if the distance
between the holes is of the same as the wavelength of the light employed.
The diffraction of X-rays by the atoms in a solid is a completely analogous
phenomenon the wavelength of electromagnetic radiation in the case being of the
order of inter-atomic distance in solids, which is 1Å.
The structure of the compound was confirmed by IR, 1
H NMR and 13
C NMR
spectral data. The 1
H NMR spectrum shows that the CH2 protons appeared at δ 4.25
and Aromatic protons appeared in the region of δ 7.21-7.48. The olefinic proton
appeared at δ 8.3. Encouraged by this results we prepared variety of Baylis-Hillman
adducts and successfully transformed them into their corresponding thiocyanate
derivatives, according to scheme.
5. POWDER X-RAY DIFFRACTION METHOD
The powder method is applicable to finely divided crystalline powder or to a very
fine-grained polycrystalline spectrum. This is also Debye-Schrerrer method. In this
method single crystals are not required and it is used for accurate determination of
lattice parameters in crystals of known structure and for the identification of elements
and compounds. The powdered sample is kept inside a small capillary tube, which
does not undergo diffraction by X-rays.
A narrow pencil of monochromatic X-ray is diffracted from the powder and
recorded by photographic films as a series of lines of varying curvature. The full
opening angle of the diffraction cone 4Ɵ is determined by measuring the distance S
between two corresponding arch on the power photographs symmetrically displaced
about the exit point of the direct beam. The distance S on the film between two
diffraction lines corresponding to a particular plan is related to the Bragg’s angle by
the equation.
4Ɵ=S/R radians=S/R (180/π) degree
Where R is distance from the specimen to the film that is usually the radius of the
camera housing the film.
From the measured values of S a list of Ɵ and intensity gives a list of spacing d,
each spacing is the distance between neighbouring planes (hkl).
6. FOURIER TRANSFORM INFRARED SPECTROSCOPY
FT-IR stands for Fourier Transform Infrared Spectroscopy which provides the
structural information, from the observed diffraction patterns is obtained through a
mathematical manipulation known as Fourier Transformation.
In FT-IR spectroscopy, IR radiation is passed through a sample, some of the
radiation is absorbed by the sample and some of it is passed through (transmitted).
The resulting spectrum represents the molecular absorption and transmission of the
sample. Like a finger print, no two unique molecular structures produce the infrared
spectrum. This makes infrared spectroscopy useful for several types of analysis.
4. Growth of (E)-2-Nitro-3-Phenylallyl Hydrogen Sulfate Using Baylis–Hillman Derivatives
Crystals
http://www.iaeme.com/IJARET/index.asp 125 editor@iaeme.com
The advent of Fourier Transform Spectroscopy has made the far infrared much
more accessible, and has considerably speeded and improved spectroscopy in the
infrared region in general.
There are a number of advantages to be gained by using Fourier Transform rather
than dispersive measurements in the infrared.
It is a non-destructive technique
It provides a precise measurement method which requires no external calibration
It has greater optical throughput
The total scanning time for FTIR is considerably less than that required time to
produce a dispersive spectrum of the same sensitivity and resolution
The whole spectrum is obtained across the entire frequency range at once. In
dispersive IR spectroscopy, it is common to change the dispersing grating during the
scan, as one grating is not usually able to function sufficient well over the whole
range.
7. PRINCIPLE OF FOURIER TRANSFORM INFRARED SPECTROSCOPY
The FT-IR spectra of most of the samples are recorded.
1635, 1518, 1323 cm-1
The principle of interferometer is the simple interference of radiation where the
absorption spectrum is obtained through the interference technique.
Two radiation beams with same wavelength and amplitude leads to optical
interference.
If the radiation beams are in phase, the beam will interfere constructively and the
resultant amplitude will be twice as high
If the radiation beams are out of phase by ½(2n+1)λ (half integral number of
wavelengths). The beams will interfere destructively cancelling out each other.
At intermediate phase differences, the amplitude is given by ½(1±cos2πθ/λ). Where θ
is the phase difference.
A typical inter ferogram, which is a plot of the intensity (amplitude) versus path
length difference (phase) for the interference of two radiation beams of identical
wavelength is obtained.
A complex interference pattern is obtained when two radiation beams of different
wavelengths are interfere.
8. CONCLUSION
In conclusion this methodology represents the first Friedel-Crafts reaction of the
Baylis-Hillman adducts derived from nitroolefins mediated by concentrated sulfuric
acid thus providing a simple synthesis of trisubstituted olefin derivatives.
Characterization of a crystal essentially consists of an evaluation of the chemical
composition. In addition to the evaluation of these parameters characterization also
involves the determination of their effect on the physical properties of the crystal.
ACKNOWLEDGMENTS
We thank AMET University for the financial support. We also thank University 0f
Madras for the NMR facility. Indian institute of Technology, Chennai for IR, and
Mass Spectra, Anna University Chennai for powder XRD.
5. Anandhan Vidya and Nagppan. Sivakumar
http://www.iaeme.com/IJARET/index.asp 126 editor@iaeme.com
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