polymers Waleed
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Polymerisation is the reaction that forms polymers, which are long chains of repeating structural units called monomers. Natural polymers like DNA, RNA, cotton and wool result from materials found in nature, while addition polymerisation involves identical alkene monomers bonding together without losing atoms. Polymers have characteristics like low density, good corrosion resistance and moldability that make them useful in a variety of applications, including medicine like heart valves, industry uses like automobile parts and pipes, and sports equipment like playgrounds and balls.
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Polymer ppt M pharm
This document provides an overview of polymers including their types, classifications, characteristics, and applications. It defines polymers as large molecules formed from monomers linking together in chains. Polymers are classified as natural, synthetic, or semisynthetic and characterized by their structure, including linear, branched, cross-linked, and network forms. Common polymers are used in medicine, consumer products, industry, and sports due to their light weight, low cost, and moldability.
POLYMER
Polymers are large molecules formed from repeating structural units called monomers. There are several types of polymers including natural polymers like DNA, homopolymers made of identical monomers, and copolymers made of two or more different monomers. Polymers can also be classified based on their structure, molecular forces, and mode of polymerization. They have a variety of applications in medicine, consumer products, industry, and sports due to their properties like low density, corrosion resistance, and ability to be produced in different colors.
Polymers final
Polymers are large molecules formed by linking many small repeating units called monomers. There are natural polymers like DNA and collagen as well as synthetic polymers like polyethylene, polyvinyl chloride, and nylon. Polymers can be classified based on their structure as linear, branched, or cross-linked, and based on how they are formed as addition or condensation polymers. Properties of polymers depend on factors like chain length, branching, and cross-linking. Common applications of polymers include packaging, insulation, fibers, and medical devices.
NON-METALLIC MATERIALS
This document provides an overview of non-metallic materials including polymers, ceramics, and composites. It discusses key polymer types like polyethylene, polypropylene, polystyrene, polyvinyl chloride, and nylon. It describes their properties, production processes, and common applications. Terminology used in polymers like monomer, polymer, polymerization, homopolymer, and copolymer are also defined. The different types of polymerization and various polymer classifications are outlined.
UNIT- III.pptx
Polymers – types of polymer, commodity and engineering polymers – Properties and applications of various thermosetting and thermoplastic polymers (PP, PS, PVC, PMMA, PET,PC, PA, ABS, PI, PAI, PPO, PPS, PEEK, PTFE, Polymers – Urea and Phenol formaldehydes)- Engineering Ceramics – Properties and applications of Al2O3, SiC, Si3N4, PSZ and SIALON –Composites-
Classifications- Metal Matrix and FRP - Applications of Composites.
polymers
- Polymerization is a process by which monomer molecules are linked to form a polymer. It involves three main steps - initiation, propagation, and termination.
- Initiation involves the use of initiators like azo compounds or peroxides which decompose to form free radicals when heat or light is applied.
- Propagation involves these free radicals reacting with monomer molecules to start the chain growth, linking monomer after monomer.
- Termination occurs when two growing radical chain ends combine, stopping further reaction and chain growth.
Polymer notes.pptx
Polymers are large molecules formed by combining many smaller subunits called monomers. They can be found naturally or made synthetically. Polymers are formed through polymerization reactions where monomers bond together into long chains or networks. There are several ways polymers can be classified, including by their source, structure, type of polymerization reaction, monomers used, intermolecular forces, backbone composition, and atomic arrangement. The functionality and degree of polymerization also provide information about polymers' structure and properties.
Lesson3 plastics
Plastics are polymers composed of large organic molecules called polymers and additives that give them their properties. Polymers are formed from bonding monomers together in long chains through polymerization. Plastics are generally light, good insulators, resistant to corrosion, and mouldable but have low melting points and degrade under UV light. There are three main types of plastics: thermoplastics which have weaker bonds and can be recycled; thermosets which have stronger bonds and cannot be recycled; and elastomers which are very flexible and also cannot be recycled. Plastics are manufactured by heating polymer particles to their melting point and shaping them through extrusion or injection molding.
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Polymer ppt M pharm
This document provides an overview of polymers including their types, classifications, characteristics, and applications. It defines polymers as large molecules formed from monomers linking together in chains. Polymers are classified as natural, synthetic, or semisynthetic and characterized by their structure, including linear, branched, cross-linked, and network forms. Common polymers are used in medicine, consumer products, industry, and sports due to their light weight, low cost, and moldability.
POLYMER
Polymers are large molecules formed from repeating structural units called monomers. There are several types of polymers including natural polymers like DNA, homopolymers made of identical monomers, and copolymers made of two or more different monomers. Polymers can also be classified based on their structure, molecular forces, and mode of polymerization. They have a variety of applications in medicine, consumer products, industry, and sports due to their properties like low density, corrosion resistance, and ability to be produced in different colors.
Polymers final
Polymers are large molecules formed by linking many small repeating units called monomers. There are natural polymers like DNA and collagen as well as synthetic polymers like polyethylene, polyvinyl chloride, and nylon. Polymers can be classified based on their structure as linear, branched, or cross-linked, and based on how they are formed as addition or condensation polymers. Properties of polymers depend on factors like chain length, branching, and cross-linking. Common applications of polymers include packaging, insulation, fibers, and medical devices.
NON-METALLIC MATERIALS
This document provides an overview of non-metallic materials including polymers, ceramics, and composites. It discusses key polymer types like polyethylene, polypropylene, polystyrene, polyvinyl chloride, and nylon. It describes their properties, production processes, and common applications. Terminology used in polymers like monomer, polymer, polymerization, homopolymer, and copolymer are also defined. The different types of polymerization and various polymer classifications are outlined.
UNIT- III.pptx
Polymers – types of polymer, commodity and engineering polymers – Properties and applications of various thermosetting and thermoplastic polymers (PP, PS, PVC, PMMA, PET,PC, PA, ABS, PI, PAI, PPO, PPS, PEEK, PTFE, Polymers – Urea and Phenol formaldehydes)- Engineering Ceramics – Properties and applications of Al2O3, SiC, Si3N4, PSZ and SIALON –Composites-
Classifications- Metal Matrix and FRP - Applications of Composites.
polymers
- Polymerization is a process by which monomer molecules are linked to form a polymer. It involves three main steps - initiation, propagation, and termination.
- Initiation involves the use of initiators like azo compounds or peroxides which decompose to form free radicals when heat or light is applied.
- Propagation involves these free radicals reacting with monomer molecules to start the chain growth, linking monomer after monomer.
- Termination occurs when two growing radical chain ends combine, stopping further reaction and chain growth.
Polymer notes.pptx
Polymers are large molecules formed by combining many smaller subunits called monomers. They can be found naturally or made synthetically. Polymers are formed through polymerization reactions where monomers bond together into long chains or networks. There are several ways polymers can be classified, including by their source, structure, type of polymerization reaction, monomers used, intermolecular forces, backbone composition, and atomic arrangement. The functionality and degree of polymerization also provide information about polymers' structure and properties.
Lesson3 plastics
Plastics are polymers composed of large organic molecules called polymers and additives that give them their properties. Polymers are formed from bonding monomers together in long chains through polymerization. Plastics are generally light, good insulators, resistant to corrosion, and mouldable but have low melting points and degrade under UV light. There are three main types of plastics: thermoplastics which have weaker bonds and can be recycled; thermosets which have stronger bonds and cannot be recycled; and elastomers which are very flexible and also cannot be recycled. Plastics are manufactured by heating polymer particles to their melting point and shaping them through extrusion or injection molding.
Polymer
Polymer materials are long chain molecules made of repeating monomer units. They are classified as thermoplastics, thermosets, natural polymers, homopolymers, or copolymers. Thermoplastics can be remelted and reshaped, while thermosets form permanent networks when cured. Natural polymers like DNA and cotton are found in nature. Homopolymers are made of identical monomers, while copolymers contain two or more different monomers in the chain. Polymer properties depend on chain length, branching, cross-linking and side groups. They are widely used for applications like packaging, automotive parts, medicine, consumer goods and more due to their low cost, low density and moldability
Polymer
Polymer materials are long chain molecules made of repeating monomer units. They include plastics, rubbers, and fibers. Polymers are classified as thermoplastics, thermosets, homopolymers, copolymers, and natural polymers. The structure and properties of polymers depend on factors like chain length, branching, and cross-linking. Polymers have a variety of applications including packaging, insulation, automotive and medical parts due to their low cost, low density, and moldability.
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This document provides an introduction to polymer chemistry. It defines key terms like polymer, monomer, and polymerization. Polymers can be classified in several ways, including by origin (natural, synthetic, semi-synthetic), properties/applications (rubbers, plastics, fibers), thermal response (thermoplastics, thermosets), and monomer structure (homopolymers, co-polymers like random, alternating, block, and graft). Common examples are given for each classification.
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polymer1-150424024932-conversion-gate02.pptx
This document discusses different types of polymers including natural polymers like DNA, homopolymers made from a single monomer, and copolymers made from two or more monomers. Polymers are classified based on their origin, structure, and mode of polymerization. They have characteristics like low density and poor tensile strength. Polymers have a wide range of applications in medicine, consumer products, industry, and sports.
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A polymer is a giant molecule made from small identical repeating molecules called monomers joined together by covalent bonds. The process of interlinking the monomers to form a polymer is called polymerization. The Classification of Polymers is possible based on different parameters. Origin, thermal processing Behavior, Mechanism of polymerization, line structure, physical property, Crystallinity, and Degradability are such parameters. The spatial arrangements of substituents like alkyl, phenyl, chloro groups on the carbon chain of polymer are called tacticity. Based on tacticity polymers are classified into isotactic, syndiotactic, and atactic polymers. Tacticity depends on the temperature of formation and solvent used. Steps involved in addition polymerization or chain-growth polymerization are initiation, propagation, and termination. Polythene is an addition polymer that exists as LDPE or HDPE.LDPE is formed from ethylene at a high pressure of 1500-3000 atmosphere at a temperature range of175-250oC in presence of some oxygen, peroxide, or azocompounds as initiators.LDPE has nearly 20–50 branches (both long and short branches) per 1000 linear carbon atoms in the chain molecules. The polymerization at a low temperature and pressure in presence of metal oxide catalyst results in HDPE. 2–5 short branches or side chains per 1000 carbon atoms in the main chain, thus having a higher density range (0.945–0.96) and high melting temperature (125–130°C) compared to LDPE. Polystyrene is a transparent, amorphous addition polymer of styrene.PMMA is an addition polymer of methyl methacrylate.PAN is an acrylic fiber obtained by addition polymerization of acrylonitrile. Condensation polymerization or step-growth polymerization happens by the intermolecular reaction with the elimination of water, HCl, etc. Monomers of nylon 66 are hexamethylene diamine and adipic acid.
The first 6 in 66 denotes the number of carbon atoms in diamine and the second 6 denotes the number of carbon atoms in diacid. Nylon 6 is formed from caprolactam which has 6 carbon atoms in its ring. Bakelite is a three-dimensional phenol-formaldehyde polymer. Kevlar is an aromatic polyamide formed from-phenylene diamine and terephthaloyl chloride. Terylene is the condensation polymer from ethylene glycol and terephthalic acid. A typical Ziegler Natta catalyst is a mixture of titanium tetrachloride and triethyl Aluminium. This catalyst permits the synthesis of unbranched, stereospecific, high molecular weight polyolefins. The process is coordination polymerization and the product is the cis product. Biodegradable polymers get decomposed by bacteria into natural byproducts such as gases (CO2, N2), water, biomass, and inorganic salts. These polymers are esters, anhydrides or amides. PLA(polylactic acid), PGA (Poly(glycolic acid), and PHBV -Poly(β-hydroxybutyrate-co-hydroxy valerate) are examples of biodegradable polymers. The plastic identification code identifies the type of plastic.
New synthetic polymer
The document describes a new synthetic polymer called Polyon. Polyon is created using the monomers from nylon and polyester polymers. Nylon and polyester are both condensation polymers that are produced through a condensation polymerization reaction where small molecule byproducts like water are formed. Polyon exhibits several desirable properties including being wrinkle resistant, drying quickly, having varying levels of luster, being high tenacity, abrasion resistant, retaining its shape while being light weight and easy to handle, and being resistant to insects, fungi and mildew.
Introduction of Polymer
Polymer science revolves around the study of macromolecules known as polymers, which are formed by linking together repeating units called monomers. Understanding the relationship between polymers and monomers is fundamental to grasping the diverse properties and applications of these materials.
Additionally, we'll delve into the nomenclature of polymers, which involves the systematic naming conventions used to describe their structure and composition. Clear and standardized nomenclature ensures effective communication within the scientific community and facilitates the classification of polymers based on their chemical structure, properties, and applications.
Polymers
This document provides an overview of polymers including their classification, polymerization processes, characteristics, processing techniques, and applications. Polymers are large molecules formed by linking repeating small molecule units called monomers. They can be classified based on their source, structure, type of polymerization, or molecular forces. The two main types of polymerization are addition and condensation. Polymers have properties like low density, corrosion resistance, and moldability. Common processing methods are blow molding, injection molding, and extrusion. Polymers have a wide range of applications in consumer goods, industry, sports, and medicine.
Polymers
This document discusses polymers, including their classification, characteristics, applications, and advantages/disadvantages. Polymers are large molecules formed by joining hundreds of monomers together in chains. They can be classified based on their origin (natural, synthetic, semi-synthetic), solubility, structure (linear, branched, cross-linked), polymerization method (additional, condensation), and degradability (biodegradable, non-biodegradable). Polymers have applications in drug delivery, tissue engineering, biomaterials, coatings, and more due to their properties like low density, mechanical strength, and compatibility. They provide advantages for drug delivery such as localized and sustained release while disadvantages include dose dumping and low
polymer1-150424024932-conversion-gate02.pdf
This document provides an overview of polymers including their types, classifications, characteristics, and applications. It defines polymers as large molecules formed from monomers linking together in chains. Polymers are classified based on their origin, structure, and mode of polymerization. Some key types discussed are natural, homo, co, thermoset, and thermoplastic polymers. Common characteristics include low density, moldability and poor strength. Finally, applications highlighted are in medicine, consumer products, industry, and sports equipment.
POLYMERS
This document provides an overview of polymers including their types, classifications, characteristics, and applications. It defines polymers as large molecules formed from monomers linking together in chains. Polymers are classified based on their origin, structure, and mode of polymerization. Some key types discussed are natural, homo, co, thermoset, and thermoplastic polymers. Common characteristics include low density, corrosion resistance, and moldability. Finally, applications highlighted are in medicine, consumer products, industry, and sports equipment.
Polymers, types, synthesis, applications
Polymers are large molecules composed of many repeating structural units called monomers. There are two main types of polymerization: addition polymerization and condensation polymerization. Polymers can be classified in several ways, including by source (natural vs synthetic), structure (linear, branched, cross-linked), and molecular forces (elastomers, thermoplastics, thermosets, fibers). Common polymers used in pharmaceutical applications include cellulose, collagen, starches, polycaprolactone, and polymers used in controlled drug release formulations. Polymers can be synthesized via different polymerization methods like bulk, solution, suspension, emulsion, and their reverse phase counterparts.
LDPE Moisture Barrier Bag Suppliers, Manufacturers India
Low-density polyethylene (LDPE) is a thermoplastic polymer made from the monomer ethylene. LDPE has an open, flexible structure that makes it strong yet pliable. It is commonly used for plastic bags, food packaging, and other applications where flexibility is important. LDPE can be recycled by melting it to remove contaminants and reforming it into thin plastic sheets for use by manufacturers.
Polymers
This document discusses polymers, including their definition, classification, examples, and important types. It begins by defining polymers as giant macromolecules made from repeating monomer units. Polymers can be classified in several ways, including by origin (natural, semisynthetic, synthetic), structure (linear, branched, cross-linked), and molecular forces. Examples of important polymers discussed include natural rubber, polyethene, teflon, nylon, polyester, bakelite, and biodegradable PHBV. Key properties and uses of these polymers are also provided.
Poly
This document summarizes different types of polymers. It discusses the classification of polymers based on source, structure, mode of polymerization, molecular forces, and provides examples. Key polymers discussed include polyethylene, polyvinyl chloride, nylon, bakelite, phenol-formaldehyde, and melamine-formaldehyde. The document also explains the processes of addition, condensation, and step-growth polymerization.
Polymers and It's Classification
* Introduction to polymers.
* Polymerization.
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Thermalresponse, Mode of formation,structure & Biodegradability
* Some other parameters of polymer classification - Crystallinity & BackboneAtom
* Conclusion
Introduction to Polymer Science and engineering
This document provides an introduction and overview of polymer science. It begins with an outline of the course topics, including polymer terminology, classifications, properties, processing, applications and more. It then discusses why an introduction to polymer science is important, noting that we are currently in the "Polymer Material Age." Polymers are ubiquitous in modern life due to beneficial properties like strength, durability, light weight and low cost. The document defines polymers as macromolecules composed of repeating monomer units linked by covalent bonds. It provides examples of polymer terminology and classifications. Finally, it briefly discusses the history of polymer science and commercialization of important early plastics.
Polymers
This document provides an overview of polymers, including:
- Polymers are large molecules made of repeating monomer units that are linked together through polymerization.
- Polymers can be classified based on their source, chemical nature, thermal behavior, and ultimate forms. Common types include natural/synthetic, organic/inorganic, thermoplastic/thermosetting, and plastics/elastomers/fibers.
- Polymers are prepared through various polymerization methods like bulk, solution, suspension, and emulsion polymerization.
- Key polymer properties include molecular weight, hydrophobicity, glass transition temperature, and crystallinity.
Polymer
This document provides an overview of polymers including their classification, characteristics, and applications. It discusses how polymers are large molecules formed from monomers linking together in chains. Polymers can be classified based on their source, structure, polymerization method, or molecular forces. They have properties like low density, moldability, and corrosion resistance. Important applications of polymers discussed are for oral, transdermal, and ocular drug delivery systems where they can control and sustain drug release through diffusion, degradation, or swelling mechanisms.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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Polymer materials are long chain molecules made of repeating monomer units. They are classified as thermoplastics, thermosets, natural polymers, homopolymers, or copolymers. Thermoplastics can be remelted and reshaped, while thermosets form permanent networks when cured. Natural polymers like DNA and cotton are found in nature. Homopolymers are made of identical monomers, while copolymers contain two or more different monomers in the chain. Polymer properties depend on chain length, branching, cross-linking and side groups. They are widely used for applications like packaging, automotive parts, medicine, consumer goods and more due to their low cost, low density and moldability
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A polymer is a giant molecule made from small identical repeating molecules called monomers joined together by covalent bonds. The process of interlinking the monomers to form a polymer is called polymerization. The Classification of Polymers is possible based on different parameters. Origin, thermal processing Behavior, Mechanism of polymerization, line structure, physical property, Crystallinity, and Degradability are such parameters. The spatial arrangements of substituents like alkyl, phenyl, chloro groups on the carbon chain of polymer are called tacticity. Based on tacticity polymers are classified into isotactic, syndiotactic, and atactic polymers. Tacticity depends on the temperature of formation and solvent used. Steps involved in addition polymerization or chain-growth polymerization are initiation, propagation, and termination. Polythene is an addition polymer that exists as LDPE or HDPE.LDPE is formed from ethylene at a high pressure of 1500-3000 atmosphere at a temperature range of175-250oC in presence of some oxygen, peroxide, or azocompounds as initiators.LDPE has nearly 20–50 branches (both long and short branches) per 1000 linear carbon atoms in the chain molecules. The polymerization at a low temperature and pressure in presence of metal oxide catalyst results in HDPE. 2–5 short branches or side chains per 1000 carbon atoms in the main chain, thus having a higher density range (0.945–0.96) and high melting temperature (125–130°C) compared to LDPE. Polystyrene is a transparent, amorphous addition polymer of styrene.PMMA is an addition polymer of methyl methacrylate.PAN is an acrylic fiber obtained by addition polymerization of acrylonitrile. Condensation polymerization or step-growth polymerization happens by the intermolecular reaction with the elimination of water, HCl, etc. Monomers of nylon 66 are hexamethylene diamine and adipic acid.
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This document provides an overview of polymers including their types, classifications, characteristics, and applications. It defines polymers as large molecules formed from monomers linking together in chains. Polymers are classified based on their origin, structure, and mode of polymerization. Some key types discussed are natural, homo, co, thermoset, and thermoplastic polymers. Common characteristics include low density, moldability and poor strength. Finally, applications highlighted are in medicine, consumer products, industry, and sports equipment.
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* Polymerization.
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* Conclusion
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This document provides an overview of polymers, including:
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Recently uploaded
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Farming systems analysis: what have we learnt?.pptx
Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
Gadgets for management of stored product pests_Dr.UPR.pdf
Insectsplayamajorroleinthedeteriorationoffoodgrainscausingbothquantitativeandqualitativelosses
Wellprovedthatnogranariescanbefilledwithgrainswithoutinsectsastheharvestedproducecontainegg(or)larvae(or)pupae(or)adultinsectinthembecauseoffieldcarryoverinfestationwhichcannotbeavoidedindevelopingcountrieslikeIndia
Simpletechnologiesfortimelydetectionofinsectsinthestoredproduceandtherebyplantimelycontrolmeasures
Randomised Optimisation Algorithms in DAPHNE
Slides from talk:
Aleš Zamuda: Randomised Optimisation Algorithms in DAPHNE .
Austrian-Slovenian HPC Meeting 2024 – ASHPC24, Seeblickhotel Grundlsee in Austria, 10–13 June 2024
https://ashpc.eu/
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Authoring a personal GPT for your research and practice: How we created the Q...
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Pests of Storage_Identification_Dr.UPR.pdf
InIndia-post-harvestlosses-unscientificstorage,insects,rodents,micro-organismsetc.,accountforabout10percentoftotalfoodgrains
Graininfestation
Directdamage
Indirectly
•theexuviae,skin,deadinsects
•theirexcretawhichmakefoodunfitforhumanconsumption
About600speciesofinsectshavebeenassociatedwithstoredgrainproducts
100speciesofinsectpestsofstoredproductscauseeconomiclosses
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
Recently uploaded (20)
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Immersive Learning That Works: Research Grounding and Paths Forward
Immersive Learning That Works: Research Grounding and Paths Forward
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
Farming systems analysis: what have we learnt?.pptx
Farming systems analysis: what have we learnt?.pptx
aziz sancar nobel prize winner: from mardin to nobel
aziz sancar nobel prize winner: from mardin to nobel
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Gadgets for management of stored product pests_Dr.UPR.pdf
Gadgets for management of stored product pests_Dr.UPR.pdf
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
Authoring a personal GPT for your research and practice: How we created the Q...
Authoring a personal GPT for your research and practice: How we created the Q...
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
polymers Waleed
- 2. What is a polymer? • Polymer are long chain giant organic molecules assembled from many small molecules called monomers. • More monomer molecules joined in units of long polymer • Example: polyethylene
- 3. What is polymerisation? • The reaction in which the large molecules are formed is called polymerisation
- 4. Natural polymers • natural polymer is a polymer that results from only raw materials that are found in nature. • Some of these natural polymers include DNA and RNA. • Cotton, DNA ,wool, wood etc. are some of the naturally occurring polymers. This Photo by Unknown author is licensed under CC BY-SA.
- 5. Addition polymerisation: • In addition polymerisation, the monomers are identical alkene molecules, they bond together by the rearrangement of bond without the loss of any atom or molecule.
- 6. Characteristics of Polymers Ø Low Density. Ø Low coefficient of friction. Ø Good corrosion resistance. Ø Good mould ability. Ø Excellent surface finish can be obtained. Ø Economical. Ø Poor temperature resistance. Ø Can be produced transparent or in different colours
- 7. Applications of Polymers: This Photo by Unknown author is licensed under CC BY.
- 8. Medicine: Many biomaterials, especially heart valve replacements and blood vessels, are made of polymers This Photo by Unknown author is licensed under CC BY.
- 9. Industry: • Automobile parts, windshields for fighter planes, pipes, tanks, packing materials, insulation and wood substitutes are all polymer applications used in the industrial market.
- 10. Sports: • Playground equipment, various balls, golf clubs, swimming pools, and protective helmets are often produced from polymers. This Photo by Unknown author is licensed under CC BY-NC.
- 11. THANK YOU