Research Paper (postgraduate) from the year 2014 in the subject Chemistry - General, grade: 3, , course: MSc, language: English, abstract: Aluminium, being a highly reactive metal, corrodes rapidly in acidic (pH 6) and alkaline (pH 12.5) media. Hence it has to be protected when it is likely to come in contact with such solutions, e.g., during cleaning or acid pickling. One method of protection is the addition of inhibitor to the corroding medium. In the present work, ethanol extract of Azadirechta indica and Murraya koenigii leaves have been investigated as corrosion inhibitor for aluminium in aqueous hydrochloric acid. The corrosion of Alluminium in plain hydrochloric acid, as well as inhibited, is found to increase with a rise in temperature. Thus in uninhibited 0.5 M HCl the loss in weight due to corrosion for an exposure period of 60 min increases from 736 mg/dm2 at 35oC to 852, 922, and 958 mg/dm2 at 45oC, 55oC and 65oC respectively. In inhibited 0.5 M HCl containing 1.30% of Azadirechta indica, it was observed that at 35oC and for an exposure period of 60 min Azadirechta indica confer 100.0% protection. In A. indica, it is observed that the compound at 1.30% concentration show an efficiency 100.0% at 35°C. As the temperature is increased the efficiency decreases. In the case of A.indica, the efficiency decreases slightly and is found to be 72.96% at 65°C. It appears that in the case of Azadirechta indica, the adsorption is of physisorption type which decreases with a rise in temperature. The surface morphology of the Al samples in the absence and presence of A.indica and M.koenigii leaves extract was investigated after weight loss using SEM technique. The badly damaged surface obtained when the metal was kept immersed in 0. 5 M HCl for 60 min without inhibitor indicates significant corrosion. However, in presence of inhibitor the surface has remarkably Improve with respect to its smoothness indicating considerable reduction of corrosion rate. This improvement in surface morphology is due to the formation of a good protective film of inhibitor on aluminium surface which is responsible for inhibition of corrosion. The order of efficiency at 1.30% v/v inhibitor concentration in 0.5 M hydrochloric acid was found to be : Azadirechta indica (100.0%) Murraya koenigii ( 94.79%)
Here’s a book of four intriguing short stories entwined with threads of chance and probability. Set in Mumbai, these tales are a heady mix of facts and fantasies. Filled with abstract concepts and unrivalled in content, each short story deals with timely coincidences and untimely encounters. A herpetologist who explores the therapeutic effects of snake venom is drawn into a roller coaster ride when his friend accidentally walks into the aftermath of a drug deal gone askew. A local drug lord and his aide hunt for a cocaine deal worth many crores while their real intention is to cause mayhem in New York by detonating dirty bombs. An honest police officer heading the Anti-Narcotics Cell refuses to swallow the karma pill as he fights and suffers from a rare insidious disease which affects his voluntary muscle movements. And, in the exclusive first story, a maverick scientist, inspired by the idea of projecting thoughts as images, creates an improved version of Tesla’s theoretical thought camera. Later, he curses himself for being in the wrong place at the wrong time when a wealthy liquor baron urges him to recreate his remarkable invention and drags him to a world where immortality and wickedness are the unwritten norms. So do you want to snuggle into the boring world of determinism or do you want to plunge into the rough seas of randomness and chaos?
Marginalized in the larger society and the mainstream women's movement, immigrant women are also outsiders in women's shelters, where racially sensitive and linguistically appropriate counselling is generally unavailable. In this book, Vijay Agnew documents the struggles of Canadian women's centres to provide better services to victims of wife abuse from Asia, Africa, and the Caribbean. The study looks at every aspect of community-based women's organizations, including their funding, operation, and services. The result is a detailed picture of the problems and challenges they encounter on a daily basis. Agnew uses case studies, reports, and interviews to document the work of these groups and to show how race, class, and gender intersect in the everyday lives of the women who depend on them. Although the women's movement initiated public discussion of wife abuse, the fight against abuse is now conducted primarily by the state through its allocation of resources. Agnew underscores the tension that often arises between the patriarchal state and feminist-inspired organizations, and the resulting difficulties in bringing about social change.
India is home to Bollywood - the largest film industry in the world. Movie theaters are said to be the "temples of modern India," with Bombay producing nearly 800 films per year that are viewed by roughly 11 million people per day. In Bollywood Cinema, Vijay Mishra argues that Indian film production and reception is shaped by the desire for national community and a pan-Indian popular culture. Seeking to understand Bollywood according to its own narrative and aesthetic principles and in relation to a global film industry, he views Indian cinema through the dual methodologies of postcolonial studies and film theory. Mishra discusses classics such as Mother India (1957) and Devdas (1935) and recent films including Ram Lakhan (1989) and Khalnayak (1993), linking their form and content to broader issues of national identity, epic tradition, popular culture, history, and the implications of diaspora.
The over-exploitation of groundwater and marked changes in climate over recent decades has led to unacceptable declines in groundwater resources. Under the likely scarcity of available water resources in the near future, it is critical to quantify and manage the available water resources. With increasing demand for potable water for human consumption, agriculture, and industrial uses, the need to evaluate the groundwater development, management, and productivity of aquifers also increases. Laboratory Manual for Groundwater, Wells, and Pumps serves as a valuable resource and provides a multi-disciplinary overview for academics, administrators, scientists, policymakers, and professionals involved in managing sustainable groundwater development programs. It includes practical guidance on the measurement of groundwater flow, soil properties, aquifer properties, wells and their design, as well as the latest state-of-the-art information on pumps and their testing, and groundwater modeling. Features: Covers basics of groundwater engineering, advanced methodologies, and their applications and groundwater modeling Examines groundwater exploration, planning and designing, and methods for formulating strategies for sustainable management and development Serves as a reference for practitioners on practical applications and frequently occurring issues of groundwater investigations, development, and management.
Now available in a three-volume set, this updated and expanded edition of the bestselling The Digital Signal Processing Handbook continues to provide the engineering community with authoritative coverage of the fundamental and specialized aspects of information-bearing signals in digital form. Encompassing essential background material, technical details, standards, and software, the second edition reflects cutting-edge information on signal processing algorithms and protocols related to speech, audio, multimedia, and video processing technology associated with standards ranging from WiMax to MP3 audio, low-power/high-performance DSPs, color image processing, and chips on video. Drawing on the experience of leading engineers, researchers, and scholars, the three-volume set contains 29 new chapters that address multimedia and Internet technologies, tomography, radar systems, architecture, standards, and future applications in speech, acoustics, video, radar, and telecommunications. This volume, Video, Speech, and Audio Signal Processing and Associated Standards, provides thorough coverage of the basic foundations of speech, audio, image, and video processing and associated applications to broadcast, storage, search and retrieval, and communications.
A reference guide for professionals or text for graduate and postgraduate students, this volume emphasizes practical designs and applications of distributed computer control systems. It demonstrates how to improve plant productivity, enhance product quality, and increase the safety, reliability, and
From the Foreword..... Modern digital signal processing applications provide a large challenge to the system designer. Algorithms are becoming increasingly complex, and yet they must be realized with tight performance constraints. Nevertheless, these DSP algorithms are often built from many constituent canonical subtasks (e.g., IIR and FIR filters, FFTs) that can be reused in other subtasks. Design is then a problem of composing these core entities into a cohesive whole to provide both the intended functionality and the required performance. In order to organize the design process, there have been two major approaches. The top-down approach starts with an abstract, concise, functional description which can be quickly generated. On the other hand, the bottom-up approach starts from a detailed low-level design where performance can be directly assessed, but where the requisite design and interface detail take a long time to generate. In this book, the authors show a way to effectively resolve this tension by retaining the high-level conciseness of VHDL while parameterizing it to get good fit to specific applications through reuse of core library components. Since they build on a pre-designed set of core elements, accurate area, speed and power estimates can be percolated to high- level design routines which explore the design space. Results are impressive, and the cost model provided will prove to be very useful. Overall, the authors have provided an up-to-date approach, doing a good job at getting performance out of high-level design. The methodology provided makes good use of extant design tools, and is realistic in terms of the industrial design process. The approach is interesting in its own right, but is also of direct utility, and it will give the existing DSP CAD tools a highly competitive alternative. The techniques described have been developed within ARPAs RASSP (Rapid Prototyping of Application Specific Signal Processors) project, and should be of great interest there, as well as to many industrial designers. Professor Jonathan Allen, Massachusetts Institute of Technology
1. In Transit 2. Those Were the Days 3. An Uneasy Transition 4. The Great Divide 5. Triumph and Decline 6. Turning Point 7. Lonely at the Top 8. Destiny and Doom 9. Charm vs Chasm 10. The Failed Messiah 11. Shotgun Marriage 12. A Dithering Withering Rao 13. Unity of Opposites 14. The Slide 15. Uncertain Future Sketches of Men at the Top Those Who Influenced Controversies Scandals Individual References Chronology Confession Bibliography Index
Doctoral Thesis / Dissertation from the year 2014 in the subject Chemistry - Analytical Chemistry, grade: 3, Saurashtra University (Department of Chemistry), course: Ph.D., language: English, abstract: The objective of this work was to develop a simple, cost effective, rugged and a high throughput method for simultaneous estimation of Azilsartan and Chlorthalidone in human plasma. Solid phase extraction technique is introduced here for first time and its advantages are: (I) Short processing time, (II) Significant reduction in the labour and (III) This technique minimizes chances of errors, saves considerable time and simplifies the sample preparation methodology. The run time per sample analysis of 15.0 min suggests the high throughput of the proposed method. From the results of all the validation parameters, the method proposed here can be useful for therapeutic drug monitoring both for analysis of routine samples of single dose or multiple dose pharmacokinetics and also for the clinical trial samples.
India is endowed with varied topographical features, such as high mountains, extensive plateaus, and wide plains traversed by mighty rivers. Divided into four sections this book provides a comprehensive overview of water resources of India. A detailed treatment of all major river basins is provided. This is followed by a discussion on major uses of water in India. Finally, the closing chapters discuss views on water management policy for India.
Subaltern Narratives in Fiji Hindi Literature is the first comprehensive study of fiction written in Fiji Hindi that moves beyond the hegemonic and colonially-implicated perspectives that have necessarily informed top-down historical accounts. Mishra makes this case using two extraordinary novels Ḍaukā Purān [‘A Subaltern Tale’] (2001]) and Fiji Maa [‘Mother of a Thousand’] (2018) by the Fiji Indian writer Subramani. They are massive novels (respectively 500 and 1,000 pages long) written in the devanāgarī (Sanskrit) script. They are examples of subaltern writing that do not exist, as a legitimation of the subaltern voice, anywhere else in the world. The novels constitute the silent underside of world literature, whose canon they silently challenge. For postcolonial, diaspora and subaltern scholars, they are defining (indeed definitive) texts without which their theories remain incomplete. Theories require mastery of primary texts and these subaltern novels, ‘heroic’ compositions as they are in the vernacular, offer a challenge to the theorist.
You toil hard in subject area, enroll yourself in prestigious institutes prepare dedicatedly for the competitive examinations, attempt and answer the questions in best of your abilities, yet lag behind in the race... The reason? Your superfluous and restricted knowledge of English language, make you fall short of your aim! Dearth of worthy tools and scarcity of instructors to teach English in true perspective, often leave students feeling bewildered, embarrassed and defeated, especially when they are preparing for the competitions. To help them emerge out of this hysteria, and to teach them the language and its basics with precision, this book comes as a consolation. The book is conceptualized with a motive to help the students (both beginners and trained) learn the essentials of English language to emerge winners in the competition. It is incorporated with simple examples with clear explanations, and the elucidations are authentic and up-to-date. This Book can be your True Companion. Here’s Why... – More than 10,000 Objective Type Questions – Model Test Papers set on the pattern of Examination Questions with answers and explanations – Live Examination Questions from recent examinations conducted in 2014 or 2015 on Bank PO, Railway Recruitment Exams, NDA/CDS and so on The book will be useful for the students appearing for SSC; UPSC, PCS; LIC-AAO and GIC-AAO; Bank PO, CGL (Combined Graduate Level) NET/SLET, Railway Recruitment Examinations, CAT, GATE, MAT, TOEFL, NDA/CDS, Section Officer Examination (Auditor), Law and Hotel Management.
Database Recovery presents an in-depth discussion on all aspects of database recovery. Firstly, it introduces the topic informally to set the intuitive understanding, and then presents a formal treatment of recovery mechanism. In the past, recovery has been treated merely as a mechanism which is implemented on an ad-hoc basis. This book elevates the recovery from a mechanism to a concept, and presents its essential properties. A book on recovery is incomplete if it does not present how recovery is practiced in commercial systems. This book, therefore, presents a detailed description of recovery mechanisms as implemented on Informix, OpenIngres, Oracle, and Sybase commercial database systems. Database Recovery is suitable as a textbook for a graduate-level course on database recovery, as a secondary text for a graduate-level course on database systems, and as a reference for researchers and practitioners in industry.
A systematic approach towards integration of design and manufacturing is essential for optimizing all elements of the integrated manufacturing system. This book is an attempt towards this approach and is intended to provide an introduction to the design process, the manufacturing processes and the tools for integration to young engineering students. Fundamental information on materials, manufacturing processes and integrated manufacturing are provided which will help the designer in the selection of most appropriate materials, processes and methods to transform his ideas into a successful product.
This book is aimed at developers, designers, and architects who would like to build big data enterprise search solutions for their customers or organizations. No prior knowledge of Apache Hadoop and Apache Solr/Lucene technologies is required.
What if life apparently makes an entanglement after a huge victory? How do you manage putting up with it? Does it not turn out to be irresistible and keep you swept away like a storm from the warmth affairs of the world? A gracious invitation to the Chocolate Sundae Fudge. This is a tale about Vijay and his journey of life. The major part is how he could transform his love affair with Rishita into a happy wedding. The rest of the story revolves around the challenges encountered by Vijay in his life. Could Vijay make an unconditional success after the downfall? Happy reading The Embrace of the Entwined Game.
Introduction : An asynchronic timeline -- Ephemeral infrastructures -- The financial sublime -- Drawing fantasies -- The industry of sound -- Inside the pit -- Concrete love -- Conclusion : Inquilab zindabad -- Appendix : list of masterplans affecting gurgaon.
Now available in a three-volume set, this updated and expanded edition of the bestselling The Digital Signal Processing Handbook continues to provide the engineering community with authoritative coverage of the fundamental and specialized aspects of information-bearing signals in digital form. Encompassing essential background material, technical details, standards, and software, the second edition reflects cutting-edge information on signal processing algorithms and protocols related to speech, audio, multimedia, and video processing technology associated with standards ranging from WiMax to MP3 audio, low-power/high-performance DSPs, color image processing, and chips on video. Drawing on the experience of leading engineers, researchers, and scholars, the three-volume set contains 29 new chapters that address multimedia and Internet technologies, tomography, radar systems, architecture, standards, and future applications in speech, acoustics, video, radar, and telecommunications. This volume, Wireless, Networking, Radar, Sensor Array Processing, and Nonlinear Signal Processing, provides complete coverage of the foundations of signal processing related to wireless, radar, space–time coding, and mobile communications, together with associated applications to networking, storage, and communications.
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