MANGETIC
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1) Ferromagnetism is a property of materials like iron that allows them to be spontaneously magnetized and is the strongest form of magnetism. 2) Ferromagnetic materials are divided into tiny magnetic domains where the electron spins are aligned within each domain but the domains point in different directions, canceling out the overall magnetic field. 3) Ferromagnetism is dependent on temperature - heating a ferromagnetic material above its Curie temperature disrupts the electron spin alignment and causes it to lose its magnetism.
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Magnetism is a property of a material that enables to attract or repel other materials. The presence and strength of the material’s magnetic properties can be observed by the effect of the forces of attraction and repulsion on other materials.
What makes magnets?
Magnets are actually created by tiny spinning electrons in an atom. The electrons move about the nucleus and spin like a top, creating a tiny magnetic field.
If electrons are spinning in the same direction there is more magnetism, while electrons spinning in opposite directions cancel out each others’ magnetic fields. Magnetic fields are invisible, we can only see the effects of the magnetic force.
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— The shape of a magnetic field is revealed by magnetic field lines
Directed away from north poles and toward south poles
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1. 1. Magnetism Name Of Student..
2. 2. Sub-Heading 1.) Magnet Definition. 2.) How Magnet Works. 3.) Coulomb Law Of Magnetic Force. 4.) Magnetism. 5.) Explanation Of Magnetism. 6.) Magnetic Field. 7.) What Happens If We Broke Magnet. 8.) Magnetic Domains. 9.) Magnetizing Material. 10.) Types Of Magnetism.
3. 3. Definition: Magnets:- A magnet is any material that produces a magnetic force (Push or Pull) on a magnetic material ( such as iron etc ). E.G:-
4. 4. How Magnet Works:- • Every Magnet Has Two Poles:- 1.) North Pole. 2.) South Pole. The opposite poles attract each other while same poles repel each other. E.G:-
5. 5. Coulomb Law Of Magnetic Force:- Sir Charles Augustine de Coulomb, was first to recognized the quantitatively force exerted by the magnets and he stated that:- “The magnitude of the electrostatic force of attraction between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. The force is along the straight line joining them.” 𝐹𝑒 = 𝑘𝑞1 𝑞2 𝑟2
6. 6. Magnetism:- • Definition:- Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects.
7. 7. Explanation:- A magnetic field exerts a force on particles in the field due to the Lorentz Force. As Lorentz Force is defined as:- “The force which is exerted by a magnetic field on a moving electric charge.” The motion of electrically charged particles gives rise to magnetism. The force acting on an electrically charged particle in a magnetic field depends on the magnitude of the charge, the velocity of the particle, and the strength of the magnetic field.
8. 8. Magnetic Fields:- Diagram:- • The Lines around the magnet shows area of force exerted in a region around magnet. • The forces originates from the North Pole and moves towards South Pole.
9. 9. What Happens If We Broke Magnet:- • If we broke a magnet into pieces then each piece will still have its own North Pole and South Pole and each field have its own magnetic field.
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Module No. 26
1. Electricity and magnetism are branches of physics that deal with charges in motion and observations relating to electricity and magnetism respectively.
2. A magnet is a body that attracts small pieces of iron and points toward the north-south direction when suspended freely. It has a north pole and a south pole. Like poles repel each other, while unlike poles attract.
3. Electromagnetism is produced when an electric current passes through a coil surrounding a magnetic material like iron. Electromagnets have many applications and their strength depends on factors like the current and number of turns in the coil.
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1) The document discusses various magnetic properties including magnetic induction, magnetic field intensity, magnetic permeability, magnetization, and the origins of magnetism.
2) It describes different types of magnetic materials including diamagnetic, paramagnetic, ferromagnetic, antiferromagnetic, and ferrimagnetic materials.
3) The domain theory of ferromagnetism is explained, including the concepts of domains, domain walls, anisotropy energy, and hysteresis in ferromagnetic materials.
Magnetism Review
There are two types of magnets: permanent magnets that retain magnetic fields indefinitely, and temporary magnets that lose magnetic field strength over time or can be turned on and off. Materials that are naturally magnetic include iron oxide (magnetite/hematite) and some transition metals like iron, nickel, and cobalt. Electromagnets are temporary magnets that become magnetic under the influence of an electric current and are no longer magnetic when the current stops.
Which material is good for magnetization?
Ferromagnetic materials are best for magnetization. They contain small regions called domains that each behave like small magnets. When placed in an external magnetic field, the domains align parallel to the field, making the entire material magnetized. Even after removing the external field, ferromagnetic materials retain some magnetization due to hysteresis, requiring a reverse field to fully demagnetize them. Hard magnetic materials have high retentivity and coercivity, giving a rectangular hysteresis loop, while soft materials have low remanence and a narrow loop. Ferromagnetic materials find applications in data storage, information processing, generators, and more.
MODREN SCIECE
Modern science examines events and aspects of nature to categorize and model them mathematically. It has changed lives through important discoveries like electricity, which is a great source of power. Science has also lessened human suffering by developing medical advances like penicillin, X-rays, and ultrasounds that help the blind, deaf, and lame. Additionally, transportation innovations created by science such as cars, trains, planes and ships have removed distances and saved time for travel.
MODREN SCIECE
Modern science examines events and aspects of nature in a comprehensive and systematic way so they can be categorized and modeled mathematically. It has transformed our lives through remarkable innovations in areas like electricity, communication, medicine, transportation, and space exploration. While technology can enable harm like pollution if misused, science itself is not harmful and has lessened human suffering through discoveries that help the blind see, deaf hear, and lame walk. It continues establishing itself as humanity's greatest conqueror through our inherent desire to understand the world with wonder.
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Magnetism is a property of a material that enables to attract or repel other materials. The presence and strength of the material’s magnetic properties can be observed by the effect of the forces of attraction and repulsion on other materials.
What makes magnets?
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The process by which the screws become magnets is called Electric/Magnetic Induction. This same process is the reason why magnets attract non-magnetized magnetic substances such as the screw. The screw becomes an induced magnet with the end nearer the magnet having an opposite polarity to that of the permanent magnet. Hence attraction happens after magnetic induction occurs. The quicker way to know the polarity of a permanent or induced magnet is by the use of a magnetic compass. Compass needle is a small magnet that is free to pivot in a horizontal plane about an axis and that the end of the magnet that points to geographic north is called the north (N) pole. Likewise, the opposite end of the magnet is the south (S) pole.What are magnetic domains?
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2. 2. Sub-Heading 1.) Magnet Definition. 2.) How Magnet Works. 3.) Coulomb Law Of Magnetic Force. 4.) Magnetism. 5.) Explanation Of Magnetism. 6.) Magnetic Field. 7.) What Happens If We Broke Magnet. 8.) Magnetic Domains. 9.) Magnetizing Material. 10.) Types Of Magnetism.
3. 3. Definition: Magnets:- A magnet is any material that produces a magnetic force (Push or Pull) on a magnetic material ( such as iron etc ). E.G:-
4. 4. How Magnet Works:- • Every Magnet Has Two Poles:- 1.) North Pole. 2.) South Pole. The opposite poles attract each other while same poles repel each other. E.G:-
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6. 6. Magnetism:- • Definition:- Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects.
7. 7. Explanation:- A magnetic field exerts a force on particles in the field due to the Lorentz Force. As Lorentz Force is defined as:- “The force which is exerted by a magnetic field on a moving electric charge.” The motion of electrically charged particles gives rise to magnetism. The force acting on an electrically charged particle in a magnetic field depends on the magnitude of the charge, the velocity of the particle, and the strength of the magnetic field.
8. 8. Magnetic Fields:- Diagram:- • The Lines around the magnet shows area of force exerted in a region around magnet. • The forces originates from the North Pole and moves towards South Pole.
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10. 10. Magnetic Domains:- • The magnetic fields in the magnets is produced by the spinning of their electrons. • These spinning of electron create tiny magnetic regions which are known as Magnetic Domains. • In Other atoms these magnetic regions (Domains) cancels each other while in magnets Domains are all lined up in a same directions. • When ever all electrons spin in a same direction magnetic field is created between them.
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This document discusses magnetism and magnetic fields. It begins by defining a magnet and different types of magnets. It then explains magnetic materials, domains, and magnetic field lines. The document discusses how cutting a magnet in half would affect its poles. It also covers permanent and temporary magnets, as well as how magnetism can be induced using electricity or electromagnets. The final section provides a sample lab experiment to test magnetic fields and determine which magnet has the strongest field.
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2. A magnet is a body that attracts small pieces of iron and points toward the north-south direction when suspended freely. It has a north pole and a south pole. Like poles repel each other, while unlike poles attract.
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There are two types of magnets: permanent magnets that retain magnetic fields indefinitely, and temporary magnets that lose magnetic field strength over time or can be turned on and off. Materials that are naturally magnetic include iron oxide (magnetite/hematite) and some transition metals like iron, nickel, and cobalt. Electromagnets are temporary magnets that become magnetic under the influence of an electric current and are no longer magnetic when the current stops.
Which material is good for magnetization?
Ferromagnetic materials are best for magnetization. They contain small regions called domains that each behave like small magnets. When placed in an external magnetic field, the domains align parallel to the field, making the entire material magnetized. Even after removing the external field, ferromagnetic materials retain some magnetization due to hysteresis, requiring a reverse field to fully demagnetize them. Hard magnetic materials have high retentivity and coercivity, giving a rectangular hysteresis loop, while soft materials have low remanence and a narrow loop. Ferromagnetic materials find applications in data storage, information processing, generators, and more.
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MODREN SCIECE
Modern science examines events and aspects of nature to categorize and model them mathematically. It has changed lives through important discoveries like electricity, which is a great source of power. Science has also lessened human suffering by developing medical advances like penicillin, X-rays, and ultrasounds that help the blind, deaf, and lame. Additionally, transportation innovations created by science such as cars, trains, planes and ships have removed distances and saved time for travel.
MODREN SCIECE
Modern science examines events and aspects of nature in a comprehensive and systematic way so they can be categorized and modeled mathematically. It has transformed our lives through remarkable innovations in areas like electricity, communication, medicine, transportation, and space exploration. While technology can enable harm like pollution if misused, science itself is not harmful and has lessened human suffering through discoveries that help the blind see, deaf hear, and lame walk. It continues establishing itself as humanity's greatest conqueror through our inherent desire to understand the world with wonder.
avalanchephotodiodetherebandwidth A6.pptx
The document discusses avalanche photodiodes (APDs) and their bandwidth. It begins by introducing APDs and noting that their performance depends on efficiency in converting light to electrical signals. It then explains the principle of APDs, describing how they are designed to operate in reverse bias conditions and use the photoelectric effect. The rest of the document discusses features of APDs such as avalanche multiplication, noise, detector structure, equivalent circuits, carrier transit time, capacitance, bandwidth limits, merits/demits, and applications.
animatedagricultureppt .pptx
The document discusses different types of agriculture practiced in India including primitive subsistence farming, intensive subsistence farming, commercial farming, and plantation farming. It also describes some major crops grown in India such as rice, millets, cotton, and coffee. Rice is the staple food crop and India is the second largest producer. Millets like jowar, bajra and ragi are important crops grown in different states. Cotton and coffee are also described as commercially important crops.
avalanchephotodid.pptx
The document discusses avalanche photodiodes (APDs) and their bandwidth. It begins by introducing APDs and noting that their performance depends on efficiency in converting light to electrical signals. It then explains the principle of APDs, describing how they are designed to operate in reverse bias conditions and use the photoelectric effect. The rest of the document discusses key aspects of APDs like their gain from avalanche multiplication, noise, common materials used, detector structure, equivalent circuits, carrier transit time, capacitance, bandwidth limitations, merits like large gain and sensitivity, demerits like higher noise and non-linear output, and applications like laser range finders and high-speed data communications.
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This document discusses cybercrime and provides information about its definition, categories, history and examples. It defines cybercrime as illegal activities conducted over the internet, and divides it into three categories: crimes against persons, property, and government. Examples of cybercrimes include hacking, phishing, spamming, and spreading malware. The document also notes that India has experienced many cybercrimes like phishing attacks and website defacement. It concludes by emphasizing the importance of awareness and security to avoid becoming victims of cybercrime.
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This document discusses cybercrime and provides information to help prevent people from becoming victims. It defines cybercrime as illegal activities committed online and categorizes cybercrimes as those against persons, property, or government. Examples of cybercrimes include hacking, phishing, spam, and spreading malware. The document notes that India experiences many cybercrimes related to fraud and hacking of websites. It emphasizes that awareness, using security software, and practicing caution online can help protect against cybercrime.
Travelling.ppt
People travel for many reasons such as rest, exploration, education, adventure, and visiting family. Common modes of transportation include cars, buses, trains, planes, boats, bicycles, and walking. Cars provide flexibility but are tiring for long distances. Trains offer comfort but can be noisy and crowded. Planes are fast but expensive. Preparation is needed when traveling abroad such as acquiring necessary documents, booking accommodations and transportation, and purchasing travel insurance.
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This document discusses the history and types of telescopes and observatories. It begins by defining a telescope as a tool used to see faraway objects using curved mirrors or lenses. It then discusses the early history of the telescope in the 16th century Netherlands. The document goes on to describe different types of observatories, including ground-based, space-based, airborne, and underground observatories. Examples of prominent ground-based observatories like Mauna Kea and Paranal are provided.
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Solar power systems use solar panels and other components to harness solar energy for various purposes. The basic components include PV modules to store solar energy and convert it to electricity, inverters to change DC current from the modules to AC current, a main fuse box to distribute power to appliances, a utility meter to measure electricity usage, and a grid connection to link multiple PV modules to generate more electricity. Overall, the document provides a basic overview of the components that make up solar power systems and how they work together to capture and utilize energy from the sun.
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Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Climate Change All over the World .pptx
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
在线办理(lboro毕业证书)拉夫堡大学毕业证学历证书一模一样
学校原件一模一样【微信：741003700 】《(lboro毕业证书)拉夫堡大学毕业证学历证书》【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
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留信网认证的作用:
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ENVIRONMENT~ Renewable Energy Sources and their future prospects.
This presentation is for us to know that how our Environment need Attention for protection of our natural resources which are depleted day by day that's why we need to take time and shift our attention to renewable energy sources instead of non-renewable sources which are better and Eco-friendly for our environment. these renewable energy sources are so helpful for our planet and for every living organism which depends on environment.
Global Peatlands Map and Hotspot Explanation Atlas
Presented by Alexandra Barthelmes at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
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Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Peatland Management in Indonesia, Science to Policy and Knowledge Education
Peatland Management in Indonesia, Science to Policy and Knowledge EducationGlobal Landscapes Forum (GLF)
Presented by Feri Johana at GLF Peatlands 2024 - 360 Degree Approach to Improving Capacity of Multiple Stakeholders to Manage Peatland SustainablyOptimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
Enhanced action and stakeholder engagement for sustainable peatland management
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Presented by Jan Peters at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action一比一原版(UMTC毕业证书)明尼苏达大学双城分校毕业证如何办理
原件一模一样【微信：6496090】【(UMTC毕业证书)明尼苏达大学双城分校毕业证成绩单学位证】【微信：6496090】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，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）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，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
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◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：6496090】
◇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；
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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
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选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
学历顾问：微信：6496090
Improving the Management of Peatlands and the Capacities of Stakeholders in I...
Improving the Management of Peatlands and the Capacities of Stakeholders in I...Global Landscapes Forum (GLF)
Presented by Sonya Dewi at GLF Peatlands 2024 - 360 Degree Approach to Improving Capacity of Multiple Stakeholders to Manage Peatland SustainablyHow about Huawei mobile phone-www.cfye-commerce.shop
How about Huawei mobile phone-www.cfye-commerce.shop
Peatlands of Latin America and the Caribbean
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
Microbial characterisation and identification, and potability of River Kuywa ...
Microbial characterisation and identification, and potability of River Kuywa ...Open Access Research Paper
Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing contamination due to human activities. Its water is widely used for domestic, agricultural, industrial and recreational purposes. This study aimed at characterizing bacteria and fungi in river Kuywa water. Water samples were randomly collected from four sites of the river: site A (Matisi), site B (Ngwelo), site C (Nzoia water pump) and site D (Chalicha), during the dry season (January-March 2018) and wet season (April-July 2018) and were transported to Maseno University Microbiology and plant pathology laboratory for analysis. The characterization and identification of bacteria and fungi were carried out using standard microbiological techniques. Nine bacterial genera and three fungi were identified from Kuywa river water. Clostridium spp., Staphylococcus spp., Enterobacter spp., Streptococcus spp., E. coli, Klebsiella spp., Shigella spp., Proteus spp. and Salmonella spp. Fungi were Fusarium oxysporum, Aspergillus flavus complex and Penicillium species. Wet season recorded highest bacterial and fungal counts (6.61-7.66 and 3.83-6.75cfu/ml) respectively. The results indicated that the river Kuywa water is polluted and therefore unsafe for human consumption before treatment. It is therefore recommended that the communities to ensure that they boil water especially for drinking.
原版制作(Newcastle毕业证书)纽卡斯尔大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(Newcastle毕业证书)纽卡斯尔大学毕业证》【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
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MANGETIC
- 3. • Ferromagnetism is a property of many materials like iron. They are magnets, so they are attracted to,or pulled towards other magnets. In physics, there are many different type of magnetism. • Ferromagnetism is the strongest one. It is used every day in many technological objects, like television screens and credit cards • Ferromagnetisme adalah sebuah fenomena dimana sebuah material dapat mengalami magnetisasi secara spontan, dan merupakan satu dari bentuk kemagnetan yang paling kuat. Fenomena inilah yang dapat menjelaskan kelakuan magnet yang kita jumpai sehari-hari.
- 4. Kerr micrograph of the metal surface showing magnetic domains, with red and green stripes denoting opposite magnetization directions. ferromagnetic material is divided into tiny regions called magnetic domains (also known as Weiss domains). Within each domain, the spins are aligned, but (if the bulk material is in its lowest energy configuration, i.e. unmagnetized), the spins of separate domains point in different directions and their magnetic fields cancel out, so the object has no net large-scale magnetic field. characteristics
- 5. • An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is "the quality of magnetism first apparent to the ancient world, and to us today".
- 11. Do magnets ever lose their magnetism? • 1) Via shock • 2) Via heat: ferromagnet materials will lose their magnetism if heated above a point known as the Curie temperature • 3) Via a demagnetizing magnetic field
- 12. 1. due to the spins of electrons in the same direction 2. One of iron,nickel,and cobalt 3. Temperature Dependence of Ferromagnetism,if it reach the Curie temperature,the spins of electrons will not in the same direction, the ferromagnetism change to be paramagnetism
- 13. vocabularies Dipoles:electric dipoles(kutub + dan -) is a pair ofelectric charges with the same magnitude but with the opposite type of charge (positive and negative) and are separated by a small distance from each other. magnetic dipole: a closed circulation of electric current. A simple example is a single loop of wire with electric current flowing through it. • Domains: ferromagnetic material is divided into tiny regions • Curie temperature: The point at which there is no magnetization anymore in the exact and different temperature depends on element
- 14. How does it become ferromagnet?
- 15. • Ferromagnets are materials that have some magnetization on their own. This means that at a temperature of absolute zero and without any magnetic field from other objects, they are still magnetic. The reason for this is that the electrons in a material have aspin. In ferromagnetic materials, the electrons like to have all the spins going one way, giving some magnetism. Usually, as the temperature is increased, the magnetization goes down. This is because the temperature causes the electrons in the material to move around a bit more. They do not have the spins perfectly going in the same way anymore. The point at which there is no magnetization anymore is called the Curie temperature. This changes with different materials. It changes ferromagnetism to paramagnetism