Nanotechnology: Basic introduction to the nanotechnology.Sathya Sujani
This simple presentation will help you to understand the every aspects of nanotechnology including basic definition and it's practical application in a very simple yet precise manner.
this is the ppt on nano technology.
made by harshid panchal and dhrumil patel.
this take lots of time..thanx for dhrumil for time.
i think this is helpful to all.
education
Nanotechnology: Basic introduction to the nanotechnology.Sathya Sujani
This simple presentation will help you to understand the every aspects of nanotechnology including basic definition and it's practical application in a very simple yet precise manner.
this is the ppt on nano technology.
made by harshid panchal and dhrumil patel.
this take lots of time..thanx for dhrumil for time.
i think this is helpful to all.
education
Nanotechnology ("nanotech") is manipulation of matter on an atomic, molecular, and supramolecular scale. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defines nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers. This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special properties of matter which occur below the given size threshold. It is therefore common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to the broad range of research and applications whose common trait is size.
Future prospects of nanotechnology innovations in livestock production 2019 "...Alexandria University
Future prospects of nanotechnology innovations in animal production
Ahmed Abdel-Megeed
Department of Plant Protection, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria 21531, Egypt
Corresponding author: ahmedabdelfattah@alexu.edu.eg
Abstract
Nanotechnology is a great innovation that is revolutionizing the agricultural practices. It is a science that works at the nanoscale and provides many benefits. In this review, the fundamental concepts of nanotechnology are clarified, focusing on its primary applications and a health and environment risk assessment especially in livestock production. There is currently a lack of reliable, cost-effective diagnostic tests for early detection of diseases in farmed livestock animals. Biosensing technologies have the potential to address these problems by developing innovative diagnostic tools for the rapid detection of key health threats within the agri-food livestock sector. It also allows for greater product innovation, with the creation of new food ingredients or supplements with nanoencapsulation or nanoemulsions, achieving a slow release of some composites, or perhaps obtaining healthier foods through the improvement of organoleptic properties in the product. Although nanotechnology provides many benefits, but as with all innovations, there are disadvantages and risks associated with its use. The risk assessment must take into account that the biokinetic profile and the toxicity in the target tissues can vary depending on which nanomaterial is being referred. A risk-benefit balance on the use of nanomaterials must be carried out, and in the majority of cases, though many people are open to the advancement, more information regarding the risks is required. Above all, it must be legally regulated to guarantee Agrofood safety in all products that have been manipulated using nanotechnology.
Keywords: Nanotechnology, Livestock Production, Innovation, Risk assessment
هذا البحث بمثابة مدخل لتقنية النانو واستخداماتها في مجال البناء وجاء هذا البحث لشح المصادر العربية التي تكلمت عن هذا المجال وحاولت ان اجمع ملخص مفيد يعين الدارس على فهم هذه التقنية
Nanotechnology ("nanotech") is manipulation of matter on an atomic, molecular, and supramolecular scale. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defines nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers. This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special properties of matter which occur below the given size threshold. It is therefore common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to the broad range of research and applications whose common trait is size.
Future prospects of nanotechnology innovations in livestock production 2019 "...Alexandria University
Future prospects of nanotechnology innovations in animal production
Ahmed Abdel-Megeed
Department of Plant Protection, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria 21531, Egypt
Corresponding author: ahmedabdelfattah@alexu.edu.eg
Abstract
Nanotechnology is a great innovation that is revolutionizing the agricultural practices. It is a science that works at the nanoscale and provides many benefits. In this review, the fundamental concepts of nanotechnology are clarified, focusing on its primary applications and a health and environment risk assessment especially in livestock production. There is currently a lack of reliable, cost-effective diagnostic tests for early detection of diseases in farmed livestock animals. Biosensing technologies have the potential to address these problems by developing innovative diagnostic tools for the rapid detection of key health threats within the agri-food livestock sector. It also allows for greater product innovation, with the creation of new food ingredients or supplements with nanoencapsulation or nanoemulsions, achieving a slow release of some composites, or perhaps obtaining healthier foods through the improvement of organoleptic properties in the product. Although nanotechnology provides many benefits, but as with all innovations, there are disadvantages and risks associated with its use. The risk assessment must take into account that the biokinetic profile and the toxicity in the target tissues can vary depending on which nanomaterial is being referred. A risk-benefit balance on the use of nanomaterials must be carried out, and in the majority of cases, though many people are open to the advancement, more information regarding the risks is required. Above all, it must be legally regulated to guarantee Agrofood safety in all products that have been manipulated using nanotechnology.
Keywords: Nanotechnology, Livestock Production, Innovation, Risk assessment
هذا البحث بمثابة مدخل لتقنية النانو واستخداماتها في مجال البناء وجاء هذا البحث لشح المصادر العربية التي تكلمت عن هذا المجال وحاولت ان اجمع ملخص مفيد يعين الدارس على فهم هذه التقنية
كيمياء الأسطح أو دراسة العمليات الكيميائيه التي تحدث على الأسطح الصلبه مهمة للصناعات الكيميائيه
ويمكنها مساعدتنا في العمليات المختلفة
- فهم لماذا يصدأ الحديد
- كيف تعمل خلايا الوقود
- كيف تعمل المخصبات الزراعية
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The method and machine to treat slag of metal industries, the method based on improve the mechanical properties of the slag as well as prevent its interaction with water, improvement is done by bonding slag with binders in slag treatment machine. consists of mill for crushing and grinding of slag, mixer to achieve homogeneity, bunker to assemble the bonding materials that do not need grinding, tank to collect and heat mixture to become viscous and easy deformed in pipes and a bowl to collect the treated slag.
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In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned
In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned.
In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned.
Black sand is sand that is black in color, there are a number of different dark sand grains that can form black sand, it concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous processes into a common mineral-suite that becomes black sands after weathering and erosion, several gemstones such as garnet, topaz, ruby, sapphire, and diamond are found in placers and in the course of placer mining, and sands of these gems are found in black sands and concentrates. black sand is found in Egypt with economical quantities, it is located in the Mediterranean sea coast from Al Arish in north Sinai to Rashid in Al Buhayrah, the main concentration of black sand is in Kafrelshiekh. Black sand is considered as source of many ores used in building and construction such as Iron and steel industry, that is beside wide application in concrete and painting industries. In this work, Chemical, physical and mechanical characteristics of black sands compounds in Egypt are mentioned, the composition and locations of black sand will be discussed, the main common applications of black sands in building and construction industries will be mentioned, the application of black sands in insulation materials industries will be discussed the disadvantages and precautions of using black sands in some applications in buildings will be evaluated. The work end with group of results and recommendations to improve the economic of black sand applications in new fields related to construction and building material industries such as Titanium industries and composite materials.
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Wear testing machine by laser ablation has been considered as a new method of wear testing which overcome the problems of old machines and systems . In this case, wear rate has occurred due to ablation by laser beam and test sample transformed from solid state to gas state directly (sublimation) and avoid relative movement and loss of material between sample and disk or plate. The different operation conditions such as temperature, chemicals, environmental conditions and different types of stresses has been considered. The new machine consists of two main parts optical and mechanical parts. The optical parts which include ultraviolet laser source, optical filter, lenses to concentrate the beam and manhole of laser beam to the sample tested in the control room. The mechanical parts includes The insulated chamber , dead weight , variable speed motor, sample holder, temperature and pressure sensor and ph meter. Mechanism of operation depend mainly on Ablation process which is removal of material from the surface of an tested object by vaporization .Ultraviolet laser beam is used as source of energy required for ablation process to avoid thermal effects. The new technique is suitable for all kinds of materials such as metals, alloys polymers, ceramics and composites in any shapes and sizes. The main factors affecting the new techniques are divided into factors related to the laser beam characteristics and factors related to material properties, the material properties include the surface roughness, thermal conductivity, specific heat ,density and mainly latent heat of sublimation.
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