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This document provides an introduction to engineering materials. It discusses that engineering materials is an interdisciplinary field that investigates the relationship between the atomic/molecular structure of materials and their macroscopic properties. The field is concerned with the design, manufacture, and use of all classes of materials, including their energy, environmental, health, economic, and manufacturing issues. The document then provides an overview of ionic crystals, including that they are formed by the transfer of electrons, have high melting points, conduct electricity when molten, have low thermal conductivity, and are soluble in polar solvents. Examples of applications of ionic crystals are also given.
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The document presents a presentation on the synthesis and characterization of copper oxide nanomaterials. It discusses how copper oxide nanomaterials were synthesized using the sol-gel method, which involves dissolving copper nitrate in ethanol, adding sodium hydroxide dropwise to form a precipitate, filtering, drying, and annealing the material. It then characterizes the synthesized copper oxide using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier-transform infrared spectroscopy to analyze structure, morphology, composition and bonding. Finally, it discusses some potential engineering applications of copper oxide nanomaterials such as in catalysts, gas sensors, antibacterial agents, solar cells, and lubricants.
64866c1700971.pdf
The next years will prove the importance of greensynthesis methods for MNPs and MONPs production because they are not
only easy to execute, fast, and cheap but also less toxic and environmentally ecofriendly. Nanoparticle synthesis using microorganisms
and plants by green synthesis technology is biologically safe, cost-effective, and environment-friendly. Plants and microorganisms
have established the power to devour and accumulate inorganic metal ions from their neighboring niche. The biological entities are
known to synthesize nanoparticles bothextra and intracellularly. The capability of a living system to utilize its intrinsic organic
chemistry processes in remodeling inorganic metal ions into nanoparticles has opened up an undiscovered area of biochemical analysis.
Metal nanoparticles (MNPs) and metal oxidenanoparticles (MONPs) are used in numerous fields. The new nano-based entities are
being strongly generated and incorporated into everyday personal care products, cosmetics, medicines, drug delivery, and clothing
toimpact industrial and manufacturing sectors, which means that nanomaterials commercialization and nanoassisted device will
continuously grow. They can be prepared by many methods such as green synthesis and the conventional chemical synthesis methods.
The green synthesis of nanoparticles (NPs) using living cells is a promising and novelty tool in bionanotechnology. Chemical and
physical methods are used to synthesize NPs; however, biological methods are preferred due to its eco-friendly, clean, safe, cost
effective, easy, and effective sources for high productivity and purity. Greensynthesis includes infinite accession to produce MNPs and
MONPs with demanding properties. The structure–function relationships between nanomaterials and key information for life cycle
evaluation lead to the production of high execution nanoscale materials that are gentle and environmentally friendly. Majority of plants
have features as sustainable and renewable suppliers compared with microbes and enzymes, as they have the ability to pick up almost
75% of the light energy and transform it into chemical energy, contain chemicals like antioxidants and sugars, and play fundamental
roles in the manufacture of nanoparticles. Plants considered the main factory for the green synthesis of MNPs and MONPs, and until
now, different plant species have been used to study this, but the determined conditions should be taken into consideration to execute
this preparation.
Material Science
Materials science and engineering is a field that studies the properties and applications of various material types. It has evolved from metallurgy and allows engineers to create devices that improve quality of life. Materials science is important because everything in our world depends on materials. Societies like ACerS, TMS, MRS, and ASM promote materials research and connect professionals in both industry and academia.
Nanotech.pdf
This chapter discusses recent advances in applying nanotechnology to wastewater treatment. It presents techniques for producing nanomaterials used in treatment, including fabrication of membranes and use of catalysts to decompose pollutants. Research on using metals, nanoparticles, zeolites, and carbon compounds in treatment is reviewed. The chapter introduces nanotechnology and its benefits, such as stronger and lighter materials, smaller and more accurate sensors. It explores applications of nanomaterials in membrane filtration, photocatalysis, and other treatment methods. Potential human health and environmental impacts are briefly discussed.
Envirnmental_studies_-_NEP
This document outlines the key concepts from the first chapter of an Environmental Studies textbook. It defines environmental studies as the interaction between living and non-living components of the environment. It notes that environmental studies is multidisciplinary, drawing from various fields like biology, chemistry, economics, law, and engineering. It discusses the importance of environmental studies for sustainable development and the concept of sustainability. In the last section, it provides an overview of the scope and importance of environmental studies for issues like pollution control, resource management, and environmental protection.
Hi3413431366
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Materials science & engineering
This presentation imparts intensive and extensive knowledge of the subject so that students can understand Materials science & Engineering. The discovery and use of new materials always opens the door for new technologies in the field of Engineering making human life better.
Optimisation of Biogas Production using Nanotechnology
Nanotechnology largely affects a more extensive scope of biotechnological, pharmacological and unadulterated innovative applications. In this paper we would be covering the use of nanotechnology in the production as well as optimisation of biogas. This paper clearly shows the potential and relationship between the both – biogas production and nanotechnology via various feedstock characterisation studies which was done during this paper. The aim of this paper is to showcase how these both technologies complement each other and how nanotechnology is applied in feedstock and convert it to biogas. Our study shows how nanotechnology is applied on pressmud and gas production is enhanced at laboratory level. The digestion of pressmud with nanomaterials were studied. Our study clearly indicates that the biogas production can surely be enhanced in case of treating pressmud by using magnetite nanoparticles which gives higher methane yields compared to normal digestion without nanoparticles. This study not only confirms the enhanced biogas generation from pressmud but also confirms that on other biodegradable material the same principle can be applied and gas production can be enhanced. Our study surely will be an important tool for implementing of nanotechnology in biogas research and enhanced production wherever the press mud is available. Srinivas Kasulla | S J Malik | Ahmad Allam Siddiqui "Optimisation of Biogas Production using Nanotechnology" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39867.pdf Paper URL: https://www.ijtsrd.com/other-scientific-research-area/enviormental-science/39867/optimisation-of-biogas-production-using-nanotechnology/srinivas-kasulla
Engg mat chapter 1
The document discusses the history of materials used by human civilization and the development of materials science and engineering. It describes how early civilizations progressed from the Stone Age to the Bronze Age to the Iron Age based on their ability to produce and use increasingly advanced materials. More recently, the development of advanced materials like ceramics, polymers, composites, and semiconductors has driven technological progress. The core components of materials science are described as structure, properties, processing, and performance, and how they interrelate.
Nano-scale Geo-Mechanics- 12th Aug PPSU.pptx
Nano mechanics, geo-materials, Nano scale friction, governing equations, macro-Nano behavior of geomaterials, factors affecting Nano scale friction, behavior of soil at Nano scale, scale effect, Micro-Nano transition for frictional forces, review paper, best paper award, best paper presenter award, at PP Savani University, Kosamba, Surat.
Master Thesis_Ganesh
This document is a master's thesis report submitted by Ganesh Kumar Tirumalasetty to three universities in partial fulfillment of a master's degree in advanced materials science. The thesis investigates the mechanical characterization of hybrid biocomposites, with a focus on testing mollusc shells. Chapter 1 introduces biomimetics and the potential to develop new materials by understanding the mechanical properties of natural composites like mollusc shells. While previous studies examined shells using microindentation and nanoindentation in dry conditions, this study aims to characterize shells in wet conditions as well, and develop methods to test intricately shaped biological materials.
Sustainability through Intelligence in Buildings
Energy efficiency and energy preservation are two primary worldwide concerns in current reality. Thus, sustainability encompasses those two issues, giving that as a general term refers to the capacity to endure. In architecture sustainability describes environmentally conscious design techniques, minimizing negative environmental impact and enhancing efficiency in the use of materials, energy and space. In every level of design and construction of a building, environmental issues should be taken into account. Each specific decision and choice may have consequences for the environment. Sustainability through the proper and sound use of materials is an obvious practice. Beyond that, intelligence integrated in buildings can promote energy efficiency and wider life cycle. After a brief clarification of what intelligence in buildings entitles, a series of case studies are presented in order to support the fact that in deed energy efficiency and energy preservation (in some cases energy production as well) are achieved through the use of intelligent systems in structures.
Grandchallengesinchemicalengineering
This document discusses grand challenges in the field of chemical engineering. It begins by providing context on the evolution of chemical engineering and its increasing interdisciplinary nature. It then outlines several proposed grand challenges, organized into the following categories: reaction engineering, unit operations and transport phenomena, biomedical applications, energy, materials, and green chemicals. Specific proposed challenges include developing more selective and low-energy separation processes, applying chemical engineering principles to model and regulate biological systems, developing cost-effective energy storage solutions, and advancing multiscale engineering of materials. The document argues that many interesting challenges lie at the intersections of chemical engineering and other fields like chemistry, physics, and biology.
Materials Technology for Engineers pre-test 1 notes
Materials are probably more deep-seated in our culture than most of us realize. Transportation, housing, clothing, communication, recreation, and food production virtually every segment of our everyday lives is influenced to one degree or another by materials. Historically, the development and advancement of societies have been intimately tied to the members’ ability to produce and manipulate materials to fill their needs. In fact, early civilizations have been designated by the level of their materials development (i.e., Stone Age, Bronze Age). The earliest humans had access to only a very limited number of materials, those that occur naturally: stone, wood, clay, skins, and so on. With time they
discovered techniques for producing materials that had properties superior to those of the natural ones; these new materials included pottery and various metals. Furthermore, it was discovered that the properties of a material could be altered by heat treatments and by the addition of other substances. At this point, materials utilization was totally a selection process, that is, deciding from a given, rather limited set of materials the one that was best suited for an application by virtue of its characteristics. It was not until relatively recent times that scientists came to understand the relationships between the structural elements of materials and their properties. This knowledge acquired in the past 60 years or so, has empowered them to fashion, to a large degree, the characteristics of materials. Thus, tens of
thousands of different materials have evolved with rather specialized characteristics that meet the needs of our modern and complex society; these include metals, plastics, glasses, and fibers. The development of many technologies that make our existence so comfortable
has been intimately associated with the accessibility of suitable materials. An advancement
in the understanding of a material type is often the forerunner to the stepwise progression of a technology. For example, automobiles would not have been possible without the availability of inexpensive steel or some other comparable substitute. In our contemporary era, sophisticated electronic devices rely on components that are made from what are called semiconducting materials.
An Introduction To Nanoscience Nanotechnology
This document provides an introduction to nanoscience and nanotechnology. It discusses how nanoscience involves studying systems at the nanoscale level between 1-100 nanometers, while nanotechnology aims to systematically organize and manipulate matter at the atomic and molecular levels. The document outlines some key reasons for the importance of the nanoscale, including how quantum mechanical properties of electrons can be influenced at this scale. A brief history of the fields is given, noting Richard Feynman's 1959 lecture as laying the foundation by envisioning atomic-precision engineering. Examples of recent advances are mentioned as well.
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Materials Technology for Engineers pre-test 1 notes
Materials Technology for Engineers pre-test 1 notes
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Activity 2_1.pptx
The document discusses how Information Imparting Clubs empower women by providing access to information, resources, and support networks. These clubs address challenges women face like lack of education and opportunity. They create a platform for women to learn, develop skills, and connect to new opportunities, fostering empowerment and leadership. By enhancing women's participation in social and economic issues, these clubs contribute to development, equality, and justice for communities.
engineering materials.pptx
This document provides an introduction to engineering materials. It discusses the importance of studying engineering materials and outlines the course outcomes. The key classes of materials covered include ionic crystals, covalent materials, metals and alloys, semiconductors, superconductors, polymers, composite materials, and ceramics. Examples are provided for each class and their properties and applications are summarized. Catalysts are also introduced. The document concludes by outlining some of the mechanical, thermal, electrical, magnetic, optical and chemical properties of engineering materials.
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iot project.pptx
This document describes an IoT-based patient health monitoring system using Node MCU that measures vital signs like heartbeat, pulse, and temperature. The system has two parts - a portable remote medical monitoring unit worn by the patient and a monitoring center that performs real-time analysis of the collected data and can trigger emergency warnings. The system aims to improve healthcare access for rural societies by allowing remote patient monitoring.
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Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
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- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
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- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
一比一原版(osu毕业证书)美国俄勒冈州立大学毕业证如何办理
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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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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；
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◇回国时间很长，忘记办理；
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◇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
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Accident detection system project report.pdf
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.
Open Channel Flow: fluid flow with a free surface
Open Channel Flow: This topic focuses on fluid flow with a free surface, such as in rivers, canals, and drainage ditches. Key concepts include the classification of flow types (steady vs. unsteady, uniform vs. non-uniform), hydraulic radius, flow resistance, Manning's equation, critical flow conditions, and energy and momentum principles. It also covers flow measurement techniques, gradually varied flow analysis, and the design of open channels. Understanding these principles is vital for effective water resource management and engineering applications.
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Presentation2.pptx
- 1. INTRODUCTION TO ENGINEERING MATERIALS BY GANESH KULKARNI
- 2. Why should I study Engineering Materials? The world is in the middle of a materials revolution. Materials science and engineering has transformed every aspect of modern living. Advances in engineered materials are crucial to the continued vitality of countless industries.
- 3. OVERVIEW OF THE COURSE ENGINEERING MATERIALS IS AN INTERDISCIPLINARY FIELD INVOLVING THE PROPERTIES OF MATTER AND ITS APPLICATIONS TO VARIOUS AREAS OF SCIENCE AND ENGINEERING. THIS SCIENCE INVESTIGATES THE RELATIONSHIP BETWEEN THE STRUCTURE OF MATERIALS AT ATOMIC OR MOLECULAR SCALES AND THEIR MACROSCOPIC PROPERTIES. THE FIELD IS CONCERNED WITH THE DESIGN, MANUFACTURE AND USE OF ALL CLASSES OF MATERIALS (INCLUDING METALS, CERAMICS, SEMICONDUCTORS, POLYMERS AND BIO MATERIALS), AND WITH ENERGY, ENVIRONMENTAL, HEALTH, ECONOMIC, AND MANUFACTURING ISSUES RELATING TO MATERIALS. IT EMPHASIZES THE STUDY OF THE STRUCTURE OF MATERIALS AND PROCESSING- STRUCTURE-PROPERTY RELATIONSHIP IN MATERIALS.
- 4. COURSE OUTCOMES o Describe the role of engineering materials in the design of systems and their selection strategy. o Apply the knowledge of crystal structure and deformation behaviour to select appropriate material. o Discuss how engineering materials respond to applied mechanical loads in both a macroscopic and microscopic sense at ambient temperature and high temperature applications. o Explain the concepts of solid solutions as a basis for constructing phase diagrams.
- 7. CLASS OF MATERIALS Ionic crystals Covalent materials Metal & alloys Semiconductors Superconductors Polymers Composite materials Ceramics Inorganic glasses Catalysts
- 8. IONIC CRYSTALS Ionic Bond is Formed by transfer of electrons Example: NaCl,KCl,MgCl2 etc Properties of Ionic Crystals 1.Solid Crystals have high melting point. 2.They Conduct electricity in molten state. 3.Low thermal conductivity. 4.Soluble in polar solvents.
- 9. APPLICATION OF IONIC CRYSTALS Nacl is used for cooking purpose which make food tasty. Preservation of cheese, dairy products, meat, pickles and sauces. Cacl2 salt is used as Road salt to remove snow fallen on road in Cold countries. It lowers the freezing point water. Potassium chloride produced is used for making fertilizer