764396
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Paint is made up of solvents, resins/binders, and pigments. Solvents dissolve the film former and control the rate of cure. Resins hold the paint together and define its properties. Pigments provide color, protection, and film thickness. Modern coatings use synthetic resins that are more resistant to harsh environments and outperform paints based on drying oils and natural resins. Coatings provide barrier protection, galvanic protection, and inhibitive protection against corrosion.
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Safety in handling acids and bases
Metals react with acids by forming rust, which is iron(III) hydroxide that flakes off and exposes the metal to further corrosion. When acids and bases are mixed, a neutralization reaction occurs where water and salt are produced. While acids and bases can cause burns, dilute solutions can be used safely with care, such as vinegar which is a weak acid that will not irritate skin. The process of neutralization has uses in everyday life like treating insect stings, indigestion, tooth decay, soil, and factory waste.
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Building materials like paints, wallpapers, timber, sheet materials, ironmongery, adhesives, bricks, blocks, drainage pipes, aggregates, bagged materials, and glass each have specific storage requirements due to factors like chemical makeup, breakability, and regulations. Poor storage can cause issues like materials becoming unusable, contamination, or safety hazards. Proper storage is important to keep materials in good condition until they are ready for use on a construction site.
oxidation degradation of drug
This term paper discusses oxidation as a degradation pathway for drugs. It defines degradation as a drug's inability to maintain its initial physical, chemical, therapeutic, and toxicological properties over time. Oxidation is described as a common degradation pathway that can be catalyzed by oxygen, heavy metals, and light, leading to free radical formation. The paper outlines the types of oxidation (auto-oxidation and photo-oxidation), provides examples of drugs that undergo oxidation, and discusses methods to prevent oxidation including the use of antioxidants, chelating agents, and replacing oxygen in drug containers.
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Safety in handling acids and bases
Metals react with acids by forming rust, which is iron(III) hydroxide that flakes off and exposes the metal to further corrosion. When acids and bases are mixed, a neutralization reaction occurs where water and salt are produced. While acids and bases can cause burns, dilute solutions can be used safely with care, such as vinegar which is a weak acid that will not irritate skin. The process of neutralization has uses in everyday life like treating insect stings, indigestion, tooth decay, soil, and factory waste.
Paint failure in marine environment ppt
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Surface coatings
Surface coatings are applied to materials like steel and timber to protect them from corrosion and rotting, to decorate surfaces and add special effects, and to sanitize items by making them easier to clean. Paint consists of a thinner, binder, and pigment and dries through the processes of evaporation, oxidation, and coalescence as the binder particles fuse together into a film. When mixing a two-part coating, it is important to follow the manufacturer's recommendations on ratios and be aware of the mixture's pot life, which refers to the usable life of the mixture before it starts to cure and become unusable.
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Degradation of Ceramics
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Binders : Hold the coating together – act like “glue.”
Pigments: Provide color, UV protection and hiding to coatings.
Additives: Give coatings their unique properties.
Resins: Synthetic or vegetable materials that are used as a base for coatings.
Solvents: (water or mineral spirits) allow for the material to be suspended, and once it evaporates from the coating, it allows for the film formation.
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This document discusses two-component polyurethane coatings and one-component moisture-cured polyurethane coatings. It describes the properties and characteristics of polyols, polyisocyanates, and how adjusting the ratio of these components can modify film properties. It also covers curing mechanisms, catalysts, pigments, additives, application methods, and end uses of polyurethane coatings.
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Binders : Hold the coating together – act like “glue.”
Pigments: Provide color, UV protection and hiding to coatings.
Additives: Give coatings their unique properties.
Resins: Synthetic or vegetable materials that are used as a base for coatings.
Solvents: (water or mineral spirits) allow for the material to be suspended, and once it evaporates from the coating, it allows for the film formation.
Marine coating assigment
This document discusses marine coatings and protective coatings. It provides information on the types of structures that coatings protect, including ships, offshore structures, and industrial equipment. It notes that the main function of coatings is to protect steel from corrosion and chemicals. The document also provides statistics on the market size for anticorrosion coatings and discusses the key performance requirements for marine coatings. It describes some of the major application areas that utilize coatings, including ballast tanks, cargo holds, and offshore oil platforms.
Marine coating assigment
The document discusses marine coatings and protective coatings. It describes their main function is to protect steel structures from corrosion and chemicals. Some key applications mentioned include marine vessels, offshore oil rigs, industrial structures, and transportation vehicles. It provides statistics on worldwide consumption of anticorrosion coatings. It also describes the role of various coatings in protecting different parts of ships from corrosion. Some key requirements for coatings are also listed such as resistance to corrosion and chemicals. The document discusses the composition, properties and uses of paints as well as methods for surface preparation and coating application.
464a6622-7efb-4f37-ba23-2eaf066a9686.pptx
The document provides an overview of different types of adhesives, including their chemistry, uses, advantages, and disadvantages. It discusses formaldehyde-based adhesives like urea-formaldehyde, melamine-formaldehyde, phenol-formaldehyde, and resorcinol-formaldehyde. It also examines isocyanates, epoxies, acrylics, ethylene vinyl acetate, polyvinyl acetate, and biobased adhesives like protein-based adhesives. The document aims to help understand adhesive application, setting, performance, and polymer properties for manufacturing bonded wood products.
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CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Literature Review Basics and Understanding Reference Management.pptx
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）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，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
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
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
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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
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
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K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
The Python for beginners. This is an advance computer language.
Python language is very important language at this time. we can easily understand this language by these notes.
A review on techniques and modelling methodologies used for checking electrom...
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
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764396
- 1. COATINGS
- 2. PAINT vs COATING drying oils and/or natural resins oxidation/evaporation to form a weather resistant film continues to oxidize and breaking down. synthetic resin or inorganic silicate polymer. resistant to harsh environments superior performance (adhesion, toughness, and resistance to chemicals, UV, etc.)
- 3. 1. Solvent (volatile) 2. Resin/Binder (nonvolatile) 3. Pigments (nonvolatile) Basic Ingredients
- 4. Solvents Dissolve film former Reduce viscosity for ease of application Control rate of cure Low molecular weight organic chemicals Examples include aliphatic, aromatic, and chlorinated hydrocarbons; alcohols; ketones; esters; glycol ethers; and water.
- 5. Resin (binder) Principal ingredient Holds paint together and to the substrate Establishes chemical and physical properties Defines coatings generic type A "Vehicle" that turns to a "Solid" (nonvolatile)
- 6. Organic Coatings The resin is a carbon based polymer (urethanes, epoxies, alkyds, acrylics, etc) R C C R R R R R
- 7. Inorganic Coatings The resin is not a carbon based polymer Most utilize some type of silicate binder Si O O O O Si O O Zn ZnZn Zn O
- 8. Type of Curing in Modern Coating Resins Solvent evaporation Oxidation Chemical reaction Catalyzed film former Thermoplastic Thermoset Emulsion - water based
- 9. Pigment 1. Decorate, color, and hide 2. Protect Barrier Galvanic Inhibitive 3. Provide consistency 4. Provide film thickness 5. Control vehicle penetration into substrate
- 10. Types of Pigmented Paint
- 11. Additives Anti-fungus Anti-skinning Plasticizers Levelers Thixotropic agents Accelerators Stabilizers
- 12. Life Expectancy of Coatings design of bridge suitability of coating to bridge type environment quality of paint surface preparation application thickness
- 13. Coatings Review 1. What are the 3 components of paint? 2. What are 3 type of protection they provide?