information collected from various sources available on the internet
advanced ceramics are very useful and contains various properties that traditional ceramics do not have.
general classification
classification on the bases of application
classification on the bases of composition
+ electro ceramics
+ advanced structural ceramics
Bioi ceramics
piezoelectric ceramics
dielectric ceramic
Megnetic ceramics
Nuclear Ceramics
Automotive ceramics
optical ceramics
nitrides ceramics
silicate ceramics
carbides ceramics
oxide ceramics
Master Magnets Ltd is a major global supplier of magnetic separators and magnets for mineral and ceramic processing. They have manufacturing facilities in the UK and representation worldwide. There are three types of magnetism used in industrial separation: paramagnetism, ferromagnetism, and diamagnetism. Master Magnets offers various magnetic separation equipment suitable for processing minerals, ceramics, and other materials. They also have a testing laboratory for evaluating client samples and developing optimized separation processes.
Star Trace Pvt. Ltd. is manufacturer and supplier of magnetic & vibratory equipments used in various industrial applications. It exports a wide galore of magnetic equipments such as Magnetic Chip Conveyor, Rare Earth Magnet, Suspension Electro Magnet, Liquid Line Magnets, Metal Detector, Induced Roll Separator, Suspension Fork Lift Magnet, Magnetic Pulley , Barrel Magnet & so on.
The document discusses types of permanent magnets used in DC machines, including Alnico, ferrites, and rare earth magnets. It describes neodymium magnets and samarium-cobalt magnets as two types of rare earth magnets. Neodymium magnets have the highest magnetic field strength and are commonly used. Samarium-cobalt magnets have higher temperature stability but are more expensive. The document also covers different types of DC machine rotors and provides equations and modeling for DC machines.
This document discusses magnetic abrasive finishing (MAF) as a micro/nano finishing process for advanced materials like ceramics. MAF uses magnetic abrasive particles composed of ferromagnetic material and abrasive grains to remove material in the form of microchips. It provides a concise overview of how MAF works, the mechanisms of material removal, key parameters that affect the process, and applications for finishing ceramics. Experimental results show MAF can produce very smooth surfaces down to the nano-scale on ceramics with no microcracks or residual stresses.
information collected from various sources available on the internet
advanced ceramics are very useful and contains various properties that traditional ceramics do not have.
general classification
classification on the bases of application
classification on the bases of composition
+ electro ceramics
+ advanced structural ceramics
Bioi ceramics
piezoelectric ceramics
dielectric ceramic
Megnetic ceramics
Nuclear Ceramics
Automotive ceramics
optical ceramics
nitrides ceramics
silicate ceramics
carbides ceramics
oxide ceramics
Master Magnets Ltd is a major global supplier of magnetic separators and magnets for mineral and ceramic processing. They have manufacturing facilities in the UK and representation worldwide. There are three types of magnetism used in industrial separation: paramagnetism, ferromagnetism, and diamagnetism. Master Magnets offers various magnetic separation equipment suitable for processing minerals, ceramics, and other materials. They also have a testing laboratory for evaluating client samples and developing optimized separation processes.
Star Trace Pvt. Ltd. is manufacturer and supplier of magnetic & vibratory equipments used in various industrial applications. It exports a wide galore of magnetic equipments such as Magnetic Chip Conveyor, Rare Earth Magnet, Suspension Electro Magnet, Liquid Line Magnets, Metal Detector, Induced Roll Separator, Suspension Fork Lift Magnet, Magnetic Pulley , Barrel Magnet & so on.
The document discusses types of permanent magnets used in DC machines, including Alnico, ferrites, and rare earth magnets. It describes neodymium magnets and samarium-cobalt magnets as two types of rare earth magnets. Neodymium magnets have the highest magnetic field strength and are commonly used. Samarium-cobalt magnets have higher temperature stability but are more expensive. The document also covers different types of DC machine rotors and provides equations and modeling for DC machines.
This document discusses magnetic abrasive finishing (MAF) as a micro/nano finishing process for advanced materials like ceramics. MAF uses magnetic abrasive particles composed of ferromagnetic material and abrasive grains to remove material in the form of microchips. It provides a concise overview of how MAF works, the mechanisms of material removal, key parameters that affect the process, and applications for finishing ceramics. Experimental results show MAF can produce very smooth surfaces down to the nano-scale on ceramics with no microcracks or residual stresses.
In this presentation you will know what is magnetism and types of magnetism like Para magnetism, diamagnetism and ferromagnetism with their examples also what are requirements of magnets with their types like permanent magnets , resistive and superconducting magnets with their advantage and disadvantages
This power point gives a detailed information about magnets in orthodontics, basic terminology of magnets their application in orthodontics, orthodontic appliance with magnets Introduction
History,Terminologies ,Classification,Application in orthodontics(Magnetic Twin block,MAD I,MAD II, MAD III)
Conclusion
Ceramic materials originate from the Greek word 'keramos' meaning burnt matter. Ceramics cover a wide range of inorganic, non-metallic materials processed at high temperatures. Ceramic structures like pottery and the Great Pyramids have survived for thousands of years due to their corrosion and decay resistance. Ceramics are categorized into traditional materials like bricks and tiles or engineering ceramics with advanced processing for high performance. While ceramics have high strength, their low fracture toughness makes them brittle and sensitive to flaws.
Metallic glasses are amorphous alloys that are prepared through rapid quenching of molten alloys to prevent crystallization. They have properties of both metals and glasses such as high strength, elasticity, ductility, corrosion resistance, and good magnetic properties. Common preparation methods include spinning, spraying, and deposition which involve rapidly cooling the molten alloy. Metallic glasses find applications as reinforcing elements, razor blades, springs, transformer cores, electrical and electronics components, nuclear reactors, and biomedical implants due to their unique combination of properties.
This document discusses magnetic separation techniques used in mineral processing. It describes how magnetic separation works by extracting magnetically susceptible materials from mixtures using magnetic forces. It explains that materials are classified as diamagnetic, paramagnetic, or ferromagnetic based on their response to magnetic fields. Ferromagnetics require weak fields while paramagnetics need stronger fields from electromagnets. Magnetic separation has applications in removing tramp iron from ore streams and separating magnetic minerals from less magnetic ones. Common magnetic separators include low-intensity and high-intensity drums, cross belts, discs, induced rolls, and superconducting separators.
The document discusses ceramics, which are inorganic, non-metallic solids with useful properties like high hardness, strength, and melting points. Ceramics include traditional materials like pottery and glass as well as advanced ceramics like alumina, silicon carbide, and zirconia. These advanced ceramics are used in applications requiring properties like wear and corrosion resistance at high temperatures. The document provides examples of specific uses for advanced ceramics in industries like aerospace, automotive, medical, and more.
Ceramics are inorganic, non-metallic materials that are hard, brittle, and resistant to heat. They have crystalline atomic structures formed from ionic or covalent bonds. The processing of ceramics involves preparing raw materials, forming them into shapes, drying, and firing at high temperatures to achieve final properties. Modern ceramics production utilizes advanced forming techniques and sintering processes to create high-performance materials for applications requiring strength and thermal/chemical resistance.
This document provides a literature review and introduction to a major project report on developing a metallurgical polishing setup using magnetic abrasive finishing. The objectives are to achieve better surface finish, reduce operational time, increase accuracy and efficiency, and reduce human effort. The literature review covers magnetic materials, shapes of magnets, magnet strength, wheel materials, and workpiece movement mechanisms. Neodymium magnets were selected due to their strength. Rod magnets were chosen for their strength and fitting. The introduction discusses how magnetic abrasives are used to polish materials in metallurgical polishing.
The document discusses various materials used in electrical machines. It describes high conductivity materials like copper, aluminium and their alloys which are used for windings and current carrying components due to their high electrical conductivity. It also discusses high resistivity materials like nickel-iron, chrome-iron and carbon composition materials used for making resistors to dissipate electrical energy as heat. The document provides properties and applications of these materials for effectively designing various parts of electrical machines.
Design factors; Limitations; Modern trends; Electrical
Engineering Materials; Space factor; Choice of Specific
Electric and Magnetic loadings; Thermal Considerations;
Heat flow; Temperature rise; Insulating Materials; Properties;
Rating of Machines; Various Standard Specifications ;
This document discusses advanced ceramics, including their definition, properties, classifications, and production methods. Specifically, it defines advanced ceramics as highly refined ceramic materials used as engineering materials due to properties like high temperature resistance and strength. It classifies advanced ceramics into three main categories - oxide ceramics, non-oxide ceramics, and ceramic matrix composites. The document also outlines typical production processes for advanced ceramics, including raw material preparation, shaping, and high-temperature firing or sintering.
Sonal Magnetics is a leading manufacturer and exporter of rare earth magnets and other magnetic products. They produce two main types of rare earth magnets - neodymium and samarium cobalt magnets. Neodymium magnets are cheaper while samarium cobalt magnets have higher temperature resistance due to their more complex manufacturing process. Sonal Magnetics also produces ferrite and alnico magnets, as well as over band magnetic separators and suspended magnets used to remove metal contaminants from materials on conveyor belts.
Metal matrix composites (MMCs) possess significantly improved properties including highspecific strength; specific modulus, damping capacity and good wear resistance compared to unreinforced alloys. There has been an increasing interest in composites containing low density and low cost reinforcements. Among various discontinuous dispersoids used, fly ash is one of the most inexpensive and low density reinforcement available in large quantities as solid waste by-product during combustion of coal in thermal power plants. Hence, composites with fly ash as reinforcement are likely to overcome the cost barrier for wide spread applications in automotive and small engine applications.
Metallic glasses, also known as amorphous metals or metglasses, are materials that have the properties of both metals and glasses. They have high strength, good magnetic properties, and better corrosion resistance compared to traditional metals. Common metallic glass compositions include combinations of iron, cobalt, or nickel with boron, silicon, sulfur, or phosphorus. Metallic glasses have a non-crystalline, tetrahedrally close-packed structure without grain boundaries or dislocations which gives them high strength and corrosion resistance. They also exhibit useful electrical, magnetic, and chemical properties such as high resistivity, soft or hard magnetism, and stability. Due to these properties, metallic glasses have applications as transformer cores, sensors, computer
This document discusses applications of advanced ceramics. It begins by defining ceramics as inorganic crystalline materials composed of metals and non-metals. Ceramics can be crystalline or non-crystalline. Glass-ceramics share properties of both glasses and ceramics, having advantages of glass fabrication and special ceramic properties. Advanced ceramics have superior properties to traditional ceramics like mechanical strength, corrosion and heat resistance, making them suitable for automotive, electronics, medical, energy and aerospace applications where these properties are important. Examples discussed include heat-resistant engine parts, dental implants, water treatment components, and rocket nozzles.
Applications of Superconducting Magnetic Separation (2015)Paul Beharrell
This document examines new applications for superconducting magnetic separation techniques from both technical and economic perspectives. Superconducting magnetic separation allows materials with different magnetic properties to be separated using inhomogeneous magnetic fields. It has many potential applications in mining, manufacturing, medicine, and environmental industries. Some key examples discussed include removing contaminants from machining fluids, extracting minerals from mining waste, and remediating pollution in water systems. Superconducting magnetic separation provides a low-cost, continuous, and targeted extraction process for removing unwanted materials.
Ceramic matrix composites are materials that contain one or more ceramic phases added to another ceramic phase to improve properties. The reinforcement, such as fibers, particles, or whiskers, is added to the ceramic matrix to increase its toughness. Ceramic matrix composites overcome issues with monolithic ceramics like low fracture toughness and brittle failure. They have applications where high temperature capability and corrosion/wear resistance are important, such as cutting tools, heat shields, gas turbine components, and brake systems.
This document discusses structural ceramics, including their mechanical properties, classifications, general properties, processing techniques, and areas of application. It describes how structural ceramics are used in applications requiring properties like strength, hardness, heat resistance, and chemical inertness. Examples given include wear parts, cutting tools, engine components, armor, semiconductor production equipment, steel making, and catalytic converters. The document provides details on the materials used and processing methods for different applications of structural ceramics.
This document provides information on the properties of ceramics. It begins with an introduction to ceramics, including their atomic bonding and crystal structures. It then discusses defects in ceramics and general properties such as brittleness, toughness, and strength at high temperatures. The document classifies ceramics and discusses properties and applications of various types, including electronic ceramics like piezoelectric and dielectric ceramics. Processing methods are also briefly mentioned.
This document provides information on the properties of ceramics. It begins with an introduction to ceramics, including their atomic bonding and crystal structures. It then discusses defects in ceramics and general properties such as brittleness, toughness, and strength at high temperatures. The document classifies ceramics and discusses various types including electronic ceramics. It provides details on properties like piezoelectricity and applications of piezoelectric ceramics in devices. Processing methods for ceramics are also briefly mentioned.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
The debris of the ‘last major merger’ is dynamically youngSérgio Sacani
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Más contenido relacionado
Similar a Unlocking the Potential: Deep dive into ocean of Ceramic Magnets.pptx
In this presentation you will know what is magnetism and types of magnetism like Para magnetism, diamagnetism and ferromagnetism with their examples also what are requirements of magnets with their types like permanent magnets , resistive and superconducting magnets with their advantage and disadvantages
This power point gives a detailed information about magnets in orthodontics, basic terminology of magnets their application in orthodontics, orthodontic appliance with magnets Introduction
History,Terminologies ,Classification,Application in orthodontics(Magnetic Twin block,MAD I,MAD II, MAD III)
Conclusion
Ceramic materials originate from the Greek word 'keramos' meaning burnt matter. Ceramics cover a wide range of inorganic, non-metallic materials processed at high temperatures. Ceramic structures like pottery and the Great Pyramids have survived for thousands of years due to their corrosion and decay resistance. Ceramics are categorized into traditional materials like bricks and tiles or engineering ceramics with advanced processing for high performance. While ceramics have high strength, their low fracture toughness makes them brittle and sensitive to flaws.
Metallic glasses are amorphous alloys that are prepared through rapid quenching of molten alloys to prevent crystallization. They have properties of both metals and glasses such as high strength, elasticity, ductility, corrosion resistance, and good magnetic properties. Common preparation methods include spinning, spraying, and deposition which involve rapidly cooling the molten alloy. Metallic glasses find applications as reinforcing elements, razor blades, springs, transformer cores, electrical and electronics components, nuclear reactors, and biomedical implants due to their unique combination of properties.
This document discusses magnetic separation techniques used in mineral processing. It describes how magnetic separation works by extracting magnetically susceptible materials from mixtures using magnetic forces. It explains that materials are classified as diamagnetic, paramagnetic, or ferromagnetic based on their response to magnetic fields. Ferromagnetics require weak fields while paramagnetics need stronger fields from electromagnets. Magnetic separation has applications in removing tramp iron from ore streams and separating magnetic minerals from less magnetic ones. Common magnetic separators include low-intensity and high-intensity drums, cross belts, discs, induced rolls, and superconducting separators.
The document discusses ceramics, which are inorganic, non-metallic solids with useful properties like high hardness, strength, and melting points. Ceramics include traditional materials like pottery and glass as well as advanced ceramics like alumina, silicon carbide, and zirconia. These advanced ceramics are used in applications requiring properties like wear and corrosion resistance at high temperatures. The document provides examples of specific uses for advanced ceramics in industries like aerospace, automotive, medical, and more.
Ceramics are inorganic, non-metallic materials that are hard, brittle, and resistant to heat. They have crystalline atomic structures formed from ionic or covalent bonds. The processing of ceramics involves preparing raw materials, forming them into shapes, drying, and firing at high temperatures to achieve final properties. Modern ceramics production utilizes advanced forming techniques and sintering processes to create high-performance materials for applications requiring strength and thermal/chemical resistance.
This document provides a literature review and introduction to a major project report on developing a metallurgical polishing setup using magnetic abrasive finishing. The objectives are to achieve better surface finish, reduce operational time, increase accuracy and efficiency, and reduce human effort. The literature review covers magnetic materials, shapes of magnets, magnet strength, wheel materials, and workpiece movement mechanisms. Neodymium magnets were selected due to their strength. Rod magnets were chosen for their strength and fitting. The introduction discusses how magnetic abrasives are used to polish materials in metallurgical polishing.
The document discusses various materials used in electrical machines. It describes high conductivity materials like copper, aluminium and their alloys which are used for windings and current carrying components due to their high electrical conductivity. It also discusses high resistivity materials like nickel-iron, chrome-iron and carbon composition materials used for making resistors to dissipate electrical energy as heat. The document provides properties and applications of these materials for effectively designing various parts of electrical machines.
Design factors; Limitations; Modern trends; Electrical
Engineering Materials; Space factor; Choice of Specific
Electric and Magnetic loadings; Thermal Considerations;
Heat flow; Temperature rise; Insulating Materials; Properties;
Rating of Machines; Various Standard Specifications ;
This document discusses advanced ceramics, including their definition, properties, classifications, and production methods. Specifically, it defines advanced ceramics as highly refined ceramic materials used as engineering materials due to properties like high temperature resistance and strength. It classifies advanced ceramics into three main categories - oxide ceramics, non-oxide ceramics, and ceramic matrix composites. The document also outlines typical production processes for advanced ceramics, including raw material preparation, shaping, and high-temperature firing or sintering.
Sonal Magnetics is a leading manufacturer and exporter of rare earth magnets and other magnetic products. They produce two main types of rare earth magnets - neodymium and samarium cobalt magnets. Neodymium magnets are cheaper while samarium cobalt magnets have higher temperature resistance due to their more complex manufacturing process. Sonal Magnetics also produces ferrite and alnico magnets, as well as over band magnetic separators and suspended magnets used to remove metal contaminants from materials on conveyor belts.
Metal matrix composites (MMCs) possess significantly improved properties including highspecific strength; specific modulus, damping capacity and good wear resistance compared to unreinforced alloys. There has been an increasing interest in composites containing low density and low cost reinforcements. Among various discontinuous dispersoids used, fly ash is one of the most inexpensive and low density reinforcement available in large quantities as solid waste by-product during combustion of coal in thermal power plants. Hence, composites with fly ash as reinforcement are likely to overcome the cost barrier for wide spread applications in automotive and small engine applications.
Metallic glasses, also known as amorphous metals or metglasses, are materials that have the properties of both metals and glasses. They have high strength, good magnetic properties, and better corrosion resistance compared to traditional metals. Common metallic glass compositions include combinations of iron, cobalt, or nickel with boron, silicon, sulfur, or phosphorus. Metallic glasses have a non-crystalline, tetrahedrally close-packed structure without grain boundaries or dislocations which gives them high strength and corrosion resistance. They also exhibit useful electrical, magnetic, and chemical properties such as high resistivity, soft or hard magnetism, and stability. Due to these properties, metallic glasses have applications as transformer cores, sensors, computer
This document discusses applications of advanced ceramics. It begins by defining ceramics as inorganic crystalline materials composed of metals and non-metals. Ceramics can be crystalline or non-crystalline. Glass-ceramics share properties of both glasses and ceramics, having advantages of glass fabrication and special ceramic properties. Advanced ceramics have superior properties to traditional ceramics like mechanical strength, corrosion and heat resistance, making them suitable for automotive, electronics, medical, energy and aerospace applications where these properties are important. Examples discussed include heat-resistant engine parts, dental implants, water treatment components, and rocket nozzles.
Applications of Superconducting Magnetic Separation (2015)Paul Beharrell
This document examines new applications for superconducting magnetic separation techniques from both technical and economic perspectives. Superconducting magnetic separation allows materials with different magnetic properties to be separated using inhomogeneous magnetic fields. It has many potential applications in mining, manufacturing, medicine, and environmental industries. Some key examples discussed include removing contaminants from machining fluids, extracting minerals from mining waste, and remediating pollution in water systems. Superconducting magnetic separation provides a low-cost, continuous, and targeted extraction process for removing unwanted materials.
Ceramic matrix composites are materials that contain one or more ceramic phases added to another ceramic phase to improve properties. The reinforcement, such as fibers, particles, or whiskers, is added to the ceramic matrix to increase its toughness. Ceramic matrix composites overcome issues with monolithic ceramics like low fracture toughness and brittle failure. They have applications where high temperature capability and corrosion/wear resistance are important, such as cutting tools, heat shields, gas turbine components, and brake systems.
This document discusses structural ceramics, including their mechanical properties, classifications, general properties, processing techniques, and areas of application. It describes how structural ceramics are used in applications requiring properties like strength, hardness, heat resistance, and chemical inertness. Examples given include wear parts, cutting tools, engine components, armor, semiconductor production equipment, steel making, and catalytic converters. The document provides details on the materials used and processing methods for different applications of structural ceramics.
This document provides information on the properties of ceramics. It begins with an introduction to ceramics, including their atomic bonding and crystal structures. It then discusses defects in ceramics and general properties such as brittleness, toughness, and strength at high temperatures. The document classifies ceramics and discusses properties and applications of various types, including electronic ceramics like piezoelectric and dielectric ceramics. Processing methods are also briefly mentioned.
This document provides information on the properties of ceramics. It begins with an introduction to ceramics, including their atomic bonding and crystal structures. It then discusses defects in ceramics and general properties such as brittleness, toughness, and strength at high temperatures. The document classifies ceramics and discusses various types including electronic ceramics. It provides details on properties like piezoelectricity and applications of piezoelectric ceramics in devices. Processing methods for ceramics are also briefly mentioned.
Similar a Unlocking the Potential: Deep dive into ocean of Ceramic Magnets.pptx (20)
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
The debris of the ‘last major merger’ is dynamically youngSérgio Sacani
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdfSelcen Ozturkcan
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.
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...Leonel Morgado
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...Sérgio Sacani
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.
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.
3. History and Development of
Ceramic Magnet
1
Ancient Precursors
Early discoveries of naturally
magnetic materials like lodestone
2 Modern Developments
Advancements in ferrite ceramic
production in early 1900s
3
Widespread Adoption
Increased demand for low-cost,
powerful magnets in electronics
4. Properties of Ceramic
Magnets
• Ceramic magnets exhibit strong magnetic properties due to their
unique atomic structure and magnetic domain alignment.
• Their hard ferromagnetic nature allows them to maintain a persistent
magnetic field even in the absence of an external magnetic source.
• Ceramic magnets have high coercivity, enabling them to resist
demagnetization and retain their magnetism under various
environmental conditions.
• Ceramic magnets are known for their low cost and excellent
resistance to demagnetization.
5. Composition and Manufacturing of
Ceramic Magnets
Ceramic magnets composed of rare earth compounds, such as neodymium, samarium, and barium
ferrite, for high magnetic strength.
Manufacturing involves powder metallurgy process - mixing, pressing, and sintering at high
temperatures to form rigid, brittle magnets.
6. Applications of Ceramic Magnets
Electronics
Used in speakers,
motors, sensors, and
other electronic
devices.
Automotive
Found in car
speakers, alternators,
and anti-lock braking
systems.
Industrial
Used for magnetic
chucks, separators,
and magnetic
couplings.
Medical
Used in MRI
machines, hearing
aids, and magnetic
therapy devices.
7. Advantages and Disadvantages of
Ceramic Magnets
Advantages
1. High coercivity - can maintain strong
magnetic fields
2. Corrosion resistant - can withstand harsh
environments
3. Inexpensive materials and manufacturing
4. Versatile - can be customized in size and
shape
Disadvantages
1. Brittle and prone to chipping or cracking
2. Lower remanence compared to other magnet
types
3. Weaker magnetic strength per unit volume
4. Limited temperature resistance -
demagnetize at high temperature
8. Comparison of Ceramic Magnets with
Other Magnet Types
Strength
Ceramic magnets have moderate strength
Cost
Ceramic magnets are more affordable
Corrosion Resistance
Ceramic magnets are highly resistant
Thermal Stability
Ceramic magnets maintain performance
Compared to other magnet types like neodymium, ceramic magnets offer a balance of
magnetic strength, cost-effectiveness, corrosion resistance, and thermal stability. While not as
powerful as rare-earth magnets, ceramic magnets excel in applications where these other
factors are more important.
9. Advancements and Innovision in Ceramic
Magnet Technology
Automatic
Manufacturing
There is an advanced
robotic assembly and
precision magnetization
techniques which
enhances production
efficiency and quality.
Ideal Materials
If the innovative ceramic
compositions are mixed
with rare-earth additives
,it enhance the magnetic
strength and thermal
stability.
Additive
Manufacturing
There is 3D printing
allow for creation of
ceramic magnets with
intricate, tailored
designs and
properties.
Micro-Magnet
Integration
Due to highly compact
ceramic magnets, it
provide advanced sensing
and triggering capabilities
in modern electronics.
10. Key Points While Selecting and Using
Ceramic Magnets
Performance Requirements: Understand the magnetic strength, temperature, and field
requirements for the application.
Size and Shape Constraints: Choose ceramic magnets that fit the available space and design of the
product.
Environmental Conditions: Consider the exposure to moisture, chemicals, vibrations,
or other factors that could impact the magnet.
11. Future Outlook of
Ceramic Magnet
Ceramic magnets have become integral components in
modern technology, and their future looks increasingly
bright. Ongoing research and development promise even
more advanced materials and applications.
12. Conclusion
• Ceramic magnets provides affordability, durability along with
strong magnetic properties.
• Widely used across industries, they offer consistent
performance, ease of customization, and resistance to
corrosion.
• Accessible from global suppliers, these magnets remain
essential components, embodying reliability and efficiency in
various applications.