This document discusses weft insertion in air jet looms. It begins with an introduction to air jet looms and their advantages over other loom types, such as high productivity and versatility. It then describes the weft insertion process, which uses compressed air from nozzles to accelerate and transport the weft yarn through the shed. Key aspects discussed include the velocity distribution of air flow in the weft passage, the forces acting on the yarn, and equations of motion for analyzing yarn acceleration. The goal is to better understand yarn dynamics during air jet weaving in order to optimize the weft insertion process.
Effect of free surface and froude number on the protection length and turbule...eSAT Journals
Abstract An experimental study was carried out to investigate the effect of free surface, Froude and Reynolds numbers on the protection length and turbulence through compound transitions using Laser Doppler, in a rectangular channel. Measurements of turbulence are carried out along the compound transition, at different contraction ratios, at different bed slopes. Vertical transition in the bed were also changed. From the results, the protection length increases with the increase of the incoming Froude number, and increases with the increase of the relative height, while it increases with the increase of the contraction ratio. The steep slope has a major effect on the protection length. Free surface has a unique role in governing the turbulence in open channel flows. Within and downstream of the transition, the turbulence occurs primarily in the wall region. Within the transition, flow tends towards the critical state (Fr approaches close to 1) with a rise in the turbulence intensities in the free surface and the wall region which may be attributed to the flow tending towards critical state. At small values of Froude number Fr ≤ 0.22, the effect of Froude number on turbulence intensities and the free surface waves negligible. Keywords: Turbulence intensities- Laser Doppler-Protection length-Free surface-Relative height-Contraction ratio-Bottom slope-Froude number
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
On the Analysis of the Laminar to Turbulent Flow Patterns in the Treatment of...Waqas Tariq
For a fluid, the transition from laminar to turbulent flow is a function of the fluid’s speed, direction, applied pressure, pipe length, pipe radius, fluid viscosity, and fluid density. For human breathing, all of these parameters are generally beyond control, except for the fluid\'s density and viscosity. If the human has trouble breathing, laminar flow is preferred since the person does less work for each breath. In our analysis, the pipe is the airway (or breathing tube) from lips to bifurcation; the throat/pipe radius is known or can be determined; the differential pressure is the excess pressure above or below atmospheric pressure; fluid flow rate is the person’s tidal lung volume divided by the breathing rate. We analyze 13 widely different humans (with differing values for throat length, radius, etc.) to see the effect of breathing two different fluids: air (20% oxygen, 80% nitrogen) and HeOx (20% oxygen, 80% helium). The onset of turbulent flow occurs for the critical radius, and this is calculated for each patient. For 12 patients, the critical radius is much smaller than the throat/tube radius, if HeOx is used--the flow is laminar. For all patients breathing air, the critical radius is larger than the throat/tube radius--the flow is turbulent. Thus, HeOx is shown to be superior in treating patients with breathing problems.
We have been assigned a group report on Siddiqsons Group of company. We have taken its air jet looms unit made up denim fabric etc. for that we have proposed a plan to install new air jet looms machine to generate further revenue from it and expand its market as well, Nationally and Internationally.
While making the report we have learned a lot and this will definitely going to help us in our professional lives as well. It was really a great opportunity for us to enhance our professional skills. We would like to very thank full to sir Mr. Zahid Khan to give us such a great opportunity like this and also for his support throughout the report.
We would also like to thank all those who extend their favors provide us the support in making this report
Effect of free surface and froude number on the protection length and turbule...eSAT Journals
Abstract An experimental study was carried out to investigate the effect of free surface, Froude and Reynolds numbers on the protection length and turbulence through compound transitions using Laser Doppler, in a rectangular channel. Measurements of turbulence are carried out along the compound transition, at different contraction ratios, at different bed slopes. Vertical transition in the bed were also changed. From the results, the protection length increases with the increase of the incoming Froude number, and increases with the increase of the relative height, while it increases with the increase of the contraction ratio. The steep slope has a major effect on the protection length. Free surface has a unique role in governing the turbulence in open channel flows. Within and downstream of the transition, the turbulence occurs primarily in the wall region. Within the transition, flow tends towards the critical state (Fr approaches close to 1) with a rise in the turbulence intensities in the free surface and the wall region which may be attributed to the flow tending towards critical state. At small values of Froude number Fr ≤ 0.22, the effect of Froude number on turbulence intensities and the free surface waves negligible. Keywords: Turbulence intensities- Laser Doppler-Protection length-Free surface-Relative height-Contraction ratio-Bottom slope-Froude number
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
On the Analysis of the Laminar to Turbulent Flow Patterns in the Treatment of...Waqas Tariq
For a fluid, the transition from laminar to turbulent flow is a function of the fluid’s speed, direction, applied pressure, pipe length, pipe radius, fluid viscosity, and fluid density. For human breathing, all of these parameters are generally beyond control, except for the fluid\'s density and viscosity. If the human has trouble breathing, laminar flow is preferred since the person does less work for each breath. In our analysis, the pipe is the airway (or breathing tube) from lips to bifurcation; the throat/pipe radius is known or can be determined; the differential pressure is the excess pressure above or below atmospheric pressure; fluid flow rate is the person’s tidal lung volume divided by the breathing rate. We analyze 13 widely different humans (with differing values for throat length, radius, etc.) to see the effect of breathing two different fluids: air (20% oxygen, 80% nitrogen) and HeOx (20% oxygen, 80% helium). The onset of turbulent flow occurs for the critical radius, and this is calculated for each patient. For 12 patients, the critical radius is much smaller than the throat/tube radius, if HeOx is used--the flow is laminar. For all patients breathing air, the critical radius is larger than the throat/tube radius--the flow is turbulent. Thus, HeOx is shown to be superior in treating patients with breathing problems.
We have been assigned a group report on Siddiqsons Group of company. We have taken its air jet looms unit made up denim fabric etc. for that we have proposed a plan to install new air jet looms machine to generate further revenue from it and expand its market as well, Nationally and Internationally.
While making the report we have learned a lot and this will definitely going to help us in our professional lives as well. It was really a great opportunity for us to enhance our professional skills. We would like to very thank full to sir Mr. Zahid Khan to give us such a great opportunity like this and also for his support throughout the report.
We would also like to thank all those who extend their favors provide us the support in making this report
Experimental Investigations and Computational Analysis on Subsonic Wind Tunnelijtsrd
This paper disclose the entire approach to design an open circuit subsonic wind tunnel which will be used to consider the wind impact on the airfoil. The current rules and discoveries of the past research works were sought after for plan figuring of different segments of the wind tunnel. Wind speed of 26 m s have been practiced at the test territory. The wind qualities over a symmetrical airfoil are viewed as probably in a low speed wind tunnel. Tests were finished by moving the approach, from 0 to 5 degree. The stream attributes over a symmetrical airfoil are examined tentatively. The pressure distribution on the airfoil area was estimated, lift and drag force were estimated and velocity profiles were acquired. Rishabh Kumar Sahu | Saurabh Sharma | Vivek Swaroop | Vishal Kumar ""Experimental Investigations and Computational Analysis on Subsonic Wind Tunnel"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23511.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23511/experimental-investigations-and-computational-analysis-on-subsonic-wind-tunnel/rishabh-kumar-sahu
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
Analysis of dual bell rocket nozzle using computational fluid dynamicseSAT Journals
Abstract Concept of Altitude adaptive rocket nozzles recently received greater importance and interest in the space explorations and other such applications in space and rocket technology. The operations reliability of rocket launcher and the earth to orbit rocket launch are the crucial for the space transportation in the future. The performance of the engine components such as the power plant and the thrust delivery of the engine such as nozzles are in renovation for the greater performance and applicability for complex space applications. In the recent progress of the combustion expansion system the rocket nozzles are greatly revised from both application and design perspectives. One of such development is the dual bell nozzle. The publications indicate that the research on the concept of dual bell nozzle is tardy and there is no much progress from the inception of the idea. The specific application purpose designs are tested experimentally and implemented but the large scale development can only be possible if the generalized design parameters can be suggested. In the present paper one of such nozzle is selected and studied using computational fluid dynamics (CFD) and the results are synthesized for bench marking the general approach to study the Dual Bell nozzles. The result shows the variation in the Mach number, pressure, temperature distribution and turbulence intensity. Keywords: Altitude adaptation, Dual bell nozzle, Nozzle pressure ratio, Over-expansion factor.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Open channel flow velocity profiles for different reynolds numbers and roughn...eSAT Journals
Abstract A series of laboratory tests were carried out to understand the extent of effect of roughness and Reynolds number on mean velocity in both outer and inner scaling. To this end, four different types of bed surface conditions (impermeable smooth bed, impermeable rough bed, permeable sand bed and impermeable distributed roughness) and two different Reynolds number (Reh = 47,500 and 31,000) were adopted in the study. Sand particles of median diameter of 2.46 mm were used to create the roughness. The results show that the mean velocities collapsed well for different Reynolds number and for all different bed surfaces. The maximum velocity for all flow conditions were observed below some distances from the free surface. The location of maximum velocity is seen to be dependent on both of roughness and Reynolds number. The smooth bed test data agrees well with the standard log law and collapses well in viscous sub layer and overlap region. The extent of collapses is found to be dependent on Reynolds number. Friction coefficient is noted to be dependent on both the Reynolds number and roughness. Key Words: Open channel flow, Reynolds number, Roughness, mean velocity, friction coefficient, log law
Diffusers are extensively used in centrifugal
compressors, axial flow compressors, ram jets, combustion
chambers, inlet portions of jet engines and etc. A small change in
pressure recovery can increases the efficiency significantly.
Therefore diffusers are absolutely essential for good turbo
machinery performance. The geometric limitations in aircraft
applications where the diffusers need to be specially designed so
as to achieve maximum pressure recovery and avoiding flow
separation.
The study behind the investigation of flow separation in a planar
diffuser by varying the diffuser taper angle for axisymmetric
expansion. Numerical solution of 2D axisymmetric diffuser model
is validated for skin friction coefficient and pressure coefficient
along upper and bottom wall surfaces with the experimental
results of planar diffuser predicted by Vance Dippold and
Nicholas J. Georgiadis in NASA research center [2]
.
Further the diffuser taper angle is varied for other different
angles and results shows the effect of flow separation were it is
reduces i.e., for what angle and at which angle it is just avoided.
Realization of ofdm based underwater acoustic communicationeSAT Journals
Abstract Nowadays underwater communication plays a vital role in applications from commercial extends to military purposes. Present underwater communication systems involve the transmission of information in the form of sound, electromagnetic (EM), or optical waves. All these techniques has their own benefits and limitations. Acoustic communication is the most versatile and widely used technique in underwater environments because of its low attenuation compared with others. Acoustic waves are more applicable for thermally stable, deep water settings. But acoustic waves in shallow water can be adversely affected by temperature gradients, surface ambient noise, and multipath propagation due to reflection and refraction. The much slower speed of acoustic propagation in water, about 1500 m/s (meters per second), compared with that of electromagnetic and optical waves, and is another limiting factor for efficient communication and networking. Nevertheless, the currently favorable technology for underwater communication is upon acoustics. In this paper, we are planning to design a simple underwater acoustic system. We first discuss about the problems of underwater communication. Then we are designing a data transmission system in underwater and its analysis is done in the next step. Keywords: Underwater acoustic communication, Orthogonal frequency division multiplexing, Differential phase shift keying
ER Publication,
IJETR, IJMCTR,
Journals,
International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
The paper contains several technical solutions of air and moisture permeability in textile
layers and theirs combinations. It is useful collection of the author’s knowledge from several last years.
Discussed are also various marketing declarations of miraculous characteristics of individual used materials.
Examples show not only own technical solution, but also the good description of ongoing processes, using the
method of numerical simulation.
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.
Experimental Investigations and Computational Analysis on Subsonic Wind Tunnelijtsrd
This paper disclose the entire approach to design an open circuit subsonic wind tunnel which will be used to consider the wind impact on the airfoil. The current rules and discoveries of the past research works were sought after for plan figuring of different segments of the wind tunnel. Wind speed of 26 m s have been practiced at the test territory. The wind qualities over a symmetrical airfoil are viewed as probably in a low speed wind tunnel. Tests were finished by moving the approach, from 0 to 5 degree. The stream attributes over a symmetrical airfoil are examined tentatively. The pressure distribution on the airfoil area was estimated, lift and drag force were estimated and velocity profiles were acquired. Rishabh Kumar Sahu | Saurabh Sharma | Vivek Swaroop | Vishal Kumar ""Experimental Investigations and Computational Analysis on Subsonic Wind Tunnel"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23511.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23511/experimental-investigations-and-computational-analysis-on-subsonic-wind-tunnel/rishabh-kumar-sahu
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
Analysis of dual bell rocket nozzle using computational fluid dynamicseSAT Journals
Abstract Concept of Altitude adaptive rocket nozzles recently received greater importance and interest in the space explorations and other such applications in space and rocket technology. The operations reliability of rocket launcher and the earth to orbit rocket launch are the crucial for the space transportation in the future. The performance of the engine components such as the power plant and the thrust delivery of the engine such as nozzles are in renovation for the greater performance and applicability for complex space applications. In the recent progress of the combustion expansion system the rocket nozzles are greatly revised from both application and design perspectives. One of such development is the dual bell nozzle. The publications indicate that the research on the concept of dual bell nozzle is tardy and there is no much progress from the inception of the idea. The specific application purpose designs are tested experimentally and implemented but the large scale development can only be possible if the generalized design parameters can be suggested. In the present paper one of such nozzle is selected and studied using computational fluid dynamics (CFD) and the results are synthesized for bench marking the general approach to study the Dual Bell nozzles. The result shows the variation in the Mach number, pressure, temperature distribution and turbulence intensity. Keywords: Altitude adaptation, Dual bell nozzle, Nozzle pressure ratio, Over-expansion factor.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Open channel flow velocity profiles for different reynolds numbers and roughn...eSAT Journals
Abstract A series of laboratory tests were carried out to understand the extent of effect of roughness and Reynolds number on mean velocity in both outer and inner scaling. To this end, four different types of bed surface conditions (impermeable smooth bed, impermeable rough bed, permeable sand bed and impermeable distributed roughness) and two different Reynolds number (Reh = 47,500 and 31,000) were adopted in the study. Sand particles of median diameter of 2.46 mm were used to create the roughness. The results show that the mean velocities collapsed well for different Reynolds number and for all different bed surfaces. The maximum velocity for all flow conditions were observed below some distances from the free surface. The location of maximum velocity is seen to be dependent on both of roughness and Reynolds number. The smooth bed test data agrees well with the standard log law and collapses well in viscous sub layer and overlap region. The extent of collapses is found to be dependent on Reynolds number. Friction coefficient is noted to be dependent on both the Reynolds number and roughness. Key Words: Open channel flow, Reynolds number, Roughness, mean velocity, friction coefficient, log law
Diffusers are extensively used in centrifugal
compressors, axial flow compressors, ram jets, combustion
chambers, inlet portions of jet engines and etc. A small change in
pressure recovery can increases the efficiency significantly.
Therefore diffusers are absolutely essential for good turbo
machinery performance. The geometric limitations in aircraft
applications where the diffusers need to be specially designed so
as to achieve maximum pressure recovery and avoiding flow
separation.
The study behind the investigation of flow separation in a planar
diffuser by varying the diffuser taper angle for axisymmetric
expansion. Numerical solution of 2D axisymmetric diffuser model
is validated for skin friction coefficient and pressure coefficient
along upper and bottom wall surfaces with the experimental
results of planar diffuser predicted by Vance Dippold and
Nicholas J. Georgiadis in NASA research center [2]
.
Further the diffuser taper angle is varied for other different
angles and results shows the effect of flow separation were it is
reduces i.e., for what angle and at which angle it is just avoided.
Realization of ofdm based underwater acoustic communicationeSAT Journals
Abstract Nowadays underwater communication plays a vital role in applications from commercial extends to military purposes. Present underwater communication systems involve the transmission of information in the form of sound, electromagnetic (EM), or optical waves. All these techniques has their own benefits and limitations. Acoustic communication is the most versatile and widely used technique in underwater environments because of its low attenuation compared with others. Acoustic waves are more applicable for thermally stable, deep water settings. But acoustic waves in shallow water can be adversely affected by temperature gradients, surface ambient noise, and multipath propagation due to reflection and refraction. The much slower speed of acoustic propagation in water, about 1500 m/s (meters per second), compared with that of electromagnetic and optical waves, and is another limiting factor for efficient communication and networking. Nevertheless, the currently favorable technology for underwater communication is upon acoustics. In this paper, we are planning to design a simple underwater acoustic system. We first discuss about the problems of underwater communication. Then we are designing a data transmission system in underwater and its analysis is done in the next step. Keywords: Underwater acoustic communication, Orthogonal frequency division multiplexing, Differential phase shift keying
ER Publication,
IJETR, IJMCTR,
Journals,
International Journals,
High Impact Journals,
Monthly Journal,
Good quality Journals,
Research,
Research Papers,
Research Article,
Free Journals, Open access Journals,
erpublication.org,
Engineering Journal,
Science Journals,
The paper contains several technical solutions of air and moisture permeability in textile
layers and theirs combinations. It is useful collection of the author’s knowledge from several last years.
Discussed are also various marketing declarations of miraculous characteristics of individual used materials.
Examples show not only own technical solution, but also the good description of ongoing processes, using the
method of numerical simulation.
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.
Peak Performance (Star Trek: The Next Generation)/ Responsibilities of PPF or...ABU TALEB TARAQUE
DEVELOPING CUSTOMER SERVICE EXCELLENCE FOR PEAK PERFORMANCE
What Benefits YOU Get
Responsibilities of PPF organogram
How YOU will Learn
Who Should Attend
Application of Lean Manufacturing Tools in a
Garment Industry as a Strategy for
Productivity Improvement
Lean Manufacturing Implementation in the Sewing Industry
Sewing lean technology
Different Kinds of Testing and Approval Required for Fabric to Garment Manufa...ABU TALEB TARAQUE
Different Kinds of Testing and Approval Required for Garmenting
Wash test standard
Testing of fabric and garment
Different kind of testing of fabric and garment
Mold control procedure sop for RMG QA What kills black mold naturally?ABU TALEB TARAQUE
Garments mold controlling Standard operating Procedure
Standard operating Procedure for mold prevention
Standard operating Procedure of garments
Mold controlling procedure
Process Flow Chart of Garments Manufacturing | Sequence of Garments Production Process/ Process Flow Chart of Garments Manufacturing | Sequence of Garments Production Process/ Knit Garments factory
Garments Manufacturing Flow chart
How to make garments ?
RMG Flow Chart
STUDY ON QUALITY MANAGEMENT SYSTEM AND TECHNICAL SOLUTION OF DEFECTS IN LINGERIE UNIT.
Quality management system by textile learner STUDY ON QUALITY MANAGEMENT SYSTEM AND TECHNICAL
Materials & Method ,Fabric Inspection
What is The Four Point System ?
Description About The Four Point System.
Measurement Process of The Four Point System.
Example of The Four Point System
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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/
4. ANNALS OF FACULTY ENGINEERING HUNEDOARA – International Journal Of Engineering
Tome X (Year 2012). Fascicule 2. ISSN 1584 – 2665 214
According by the weft yarn is stressed or loose in the open shed its mass has to be determined in
different way (Figure 9). In case of stressed weft yarn:
6
tex 10Tlm −
⋅⋅= (4)
and for the loose weft yarn
6
tex 10T)sl(m −
⋅⋅+= (5)
where: l ‐ length of the stressed weft; [m], s ‐ length of the inserted weft; [m], texT ‐ linear density of the
weft; [tex].
The formula of beginning accelerating motion section for the stressed weft yarn in air flow, based
on Newton’s second law, can be written as follows:
( )1mf
tex
6
FF
Tl
10
m
F
dt
dv
a −⋅
⋅
===
∑ . (6)
For loose weft when the speed of yarn is approximately constant:
( ) .0FFF
T)sl(
10
m
F
dt
dv
a 1rfmf
tex
6
=−+⋅
⋅+
===
∑ (7)
Figure 9. Weft motion in air flow of the main and relay nozzles
ARRANGEMENT OF PROFILE REED AIR JET LOOMS, MEASURING LAYOUT AND MATHEMATICAL METHOD
In the Textile Workshop of Óbuda University there was examined the flow conditions of air jet
weaving machines under laboratory and industrial conditions (Figures 13 and 14). Figure 11 shows the
layout of the laboratory bench.
We made the bench from parts used on weaving machines based on the actual dimensions of the
weaving machine, which is suitable to measure the velocity distribution developing in the axis of the
insertion )x(fu = . When designing the bench our aim was that the actual weaving machine conditions
should be simulated as large extent as possible. Measuring on operating machines is not possible due to
the swaying of the reed.
Figure 10 shows the outline of main parts of the profile reed air jet weaving machines. Weft yarn is
drawn from a filling supply package by the filling feeder insertion by means of a stopper.
Figure 10. Schematic of air jet insertion with profile reed and air system diagram
6. ANNALS OF FACULTY ENGINEERING HUNEDOARA – International Journal Of Engineering
Tome X (Year 2012). Fascicule 2. ISSN 1584 – 2665 216
Generally the approximation by the Fourier series for a function )x(f with a period :p
)p ,0( x )x
p
k2
sinbx
p
k2
cosa(
2
a
)x(f k
1k
k
0
∈⋅+⋅+= ∑
∞
=
ππ
(8)
where the Fourier coefficients :b and a kk
xdx
p
k2
cos)x(f
p
2
a
p
0
k ∫=
π
and .xdx
p
k2
sin)x(f
p
2
b
p
0
k ∫=
π
(9)
In this discrete case and if :0k =
n
u
p
dx)x(f
2
a
dx)x(f
p
2
a
1n
0i
i
p
00
p
0
0
∑∫
∫
−
=
≅=⇒=
(10)
where: n ‐ number of measurements in equidistant points ;935n = [‐]; iu ‐ measured velocities along the
reed width at );cm 08.0x( xi =⋅ ΔΔ ]sm[ 1−
⋅ .
n
ki2
cosu
n
2
a
1n
0i
ik
π
⋅⋅= ∑
−
=
and 1r ... ,2 ,1k
n
ki2
sinu
n
2
b
1n
0i
ik −=⋅⋅= ∑
−
=
π
(11)
The approximate value of the at any x can be obtained:
)p ,0( x )]x
n
k2
sin(b)x
n
k2
cos(a[
2
a
u k
1r
1k
k
0
∈⋅+⋅+= ∑
−
=
ππ
(12)
MEASURING RESULTS AND DISCUSSION
Examination of velocity of air flow in the weft passage has been given the next measuring results.
The values of the air flow velocity distribution along the weft passage depend on two variables:
pressure of main tank and distance in the direction x.
The maximum air velocity at the entrance of the profile reed 0u is .sm 94.268 1−
⋅ Figure 15 sows
the velocity distribution at bar 5pt = tank pressure. In Excel Visual Basic program has been written to
obtain the numerical values of the velocity.
Figure 15. Distribution of the air velocity in the x‐axis
The velocity of air flow in the weft passage decreases rapidly to cm 5x = and at this point the air
velocity is .sm 23.113 1−
⋅ Influence of the first relay nozzle stands out in range cm 8.11x cm 5 << and
subsequently periodical with cm 4.7x = periodicity. Figures 16 and 17 showed the simulation of the
flows from the main nozzle and from a relay nozzle.
Figure 18 shows the Fourier approximation in undimensioned form obtained by division with the
maximum speed 0u and of the data xi Δ⋅ with the reed widthw . The character of dimensionless
function does not depend on main tank pressure .pt