Lap lambert academic publishing jun 2011 (Mehr als 2.100 Ergebnisse)
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Taschenbuch. Zustand: Neu. Neuware 124 pp. Englisch.
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Taschenbuch. Zustand: Neu. Neuware - V monografii predlagaetsq teoreticheskoe i äxperimental'noe obosnowanie problemy umstwennogo razwitiq detej starshego doshkol'nogo wozrasta (5-6 let)w processe oswoeniq imi logicheskih igr i zadach w uslowiqh doshkol'nogo obrazowatel'nogo uchrezhdeniq (DOU); predstawleno soderzhanie metodiki…umstwennogo razwitiq starshih doshkol'nikow sredstwami logicheskih igr i zadach, prakticheskij opyt ee realizacii, metodicheskie rekomendacii po organizacii raboty s det'mi, naprawlennoj na razwitie interesa, starshih doshkol'nikow k umstwennoj deqtel'nosti, sub#ektnyh proqwlenij detej w uslowiqh stanowleniq ih myslitel'nyh umenij, diagnosticheskij instrumentarij dlq ocenki rezul'tatow raboty. Razrabotki, predlozhennye w knige, otlichaütsq sowremennost'ü i nowiznoj podhodow k organizacii umstwennogo razwitiq detej w uslowiqh DOU. Rabota mozhet predstawlqt' interes dlq uchenyh, aspirantow, studentow i specialistow doshkol'nogo obrazowaniq.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -HIV/AIDS: A Critical Discourse Analysis of selected Zimbabwe broadcasting Corporation Television Advertisements that deal with HIV/AIDS issues is a book that examines the communicative strategies used in addressing destigimatisation,…protection against HIV/AIDS, prevention of mother to child transmission, HIV/AIDS transmission modes and abstinence from pre-marital sex. It uses CDA as an analysis tool. It establishes that language is persuasively used in the adverts to destigmatise HIV/AIDS, inform the audience about HIV/AIDS transmission and protection. It also encourages behaviour change and instills confidence in those living with HIV/AIDS to live positively. The book will be useful to students of language and advertising discourse. 116 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -As a model for interactions present in the active site of orotidine-5 -monophosphate decarboxylase (ODCase), we investigated the effects of substrate destabilization by a nearby negative charge and stabilization of the carbanion inter…mediate, due to hydrogen bonds to the carbonyl groups (O-2 and O-4) of orotic acid and its decarboxylation product, using ab initio calculations. Results from these models were comparable with available data, suggesting that the magnitude of the decarboxylation rate enhancement depends on a combination of the charge distance and hydrogen bonding effects. We found that the dipole moment of the proton donor may also play a significant role, implying that the key to the rest of the catalysis lie within the specific interactions of the substrate and the surrounding residues. 68 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In modern world,new techniques such as biometric recognition tech., image processing tech, communication tech and so on, have been integrated into car security systems. At the same time, the amount of accident of cars still remains hi…gh, specially, lost. When one car is really lost, no more feedback could be valid to help people to find it back.we introduced for embedded smart car security system is proposed, which consists of a Fingerprint recognition subsystem, a GPS (Global Positioning System) module, a GSM (Global System for Mobile Communications) module and a control platform. The Fingerprint module gives security and prevents the starting of the car form unauthorized user, and make an alarm loudly or soundlessly. The other modules transmit necessary information to users and help to keep eyes on cars all the time, even when the car is lost. The Fingerprint system to be applied in car security system because this kind of technique is effective and fast, and one alarm signal could be given to make an alarm or call the police and the host soundlessly with the help of other modules in the system prototype. 84 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Wireless Optical Sensor Link mainly deals with the wireless transfer of information (temperature sensor reading) from one point (transmitter) to another (receiver) through a small distance (25cm) via infrared medium. The involvement o…f infrared medium makes it highly reliable for short range communication.Moreover, the best factor involving infrared medium being that, it does not pass through walls and hence can well be contained in the walls of the room which makes it highly feasible for indoor communication. Additionally, it also gives an opportunity to have the same wavelength in different rooms without disrupting each other s communication. The information is coded in the proper format for transmission with the help of a transmitter circuit and transmitted with the help of an infrared emitter. This signal is then detected at the receiving side with the help of a photodetector circuit and finally demodulated and decoded back to the originally sent signal with the help of an integrator circuit. The result obtained was approximately the same as to what was being transmitted. Noise and other factor interrupting the signal have been taken into consideration as well. 60 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The main motivation of this work is to present the component based development methodologies for the web components residing at the presentation tier. Java Enterprise Edition architecture introduced JSF lately, which is a nice move to…wards the 'componentization' of the web applications. Web applications being very interactive, need more focus towards the presentation tier. Through this study we have presented two metamodels: one targeting the existing state of the art, while other is our proposed solution to the optimization of the meta-model for web components. 68 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book discusses the fundamental theory of organic and inorganic solar cells, their applications, properties and basic differences. Light absorption in inorganic materials results in the production of a free electron hole pair or re…combination. Because of the high electron quality of mono-crystalline silicon and multi-crystalline silicon, cells with stable and reasonably high efficiencies can be prepared using these materials. Organic Photovoltaic (OPV) solar cells are based on molecular or polymeric organic compounds as active parts of solar cells which exhibit power conversion efficiencies of only up to 8.3%. The physical processes that lead to photo-current generation in OPV cells include the donor-acceptor hetero-junction for efficient dissociation and transport of excitons. A fundamental difference between organic solar cells and conventional inorganic solar cells is that light absorption results in the formation of excitons in molecular materials, rather than in free electron-hole pairs (semiconductor). Due to its electrical neutrality and the strong binding energy between the hole and the electron, organic cell can be regarded as a mobile excited state. 80 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The importance of public security cannot be overemphasized in today's world. Surveillance systems consisting of extensive camera networks now have many applications. The London Underground has 9000 cameras, with each staff required to… monitor as many as 60 at a time. This presents a significant scope for automation. Processing a sequence of images from a network presents challenges in terms of deciding upon the feature set to be extracted, and the appropriate choice of algorithm. We investigate methods based upon principal component analysis and nearest-neighbor distances to propose a system of automated intruder detection in surveillance systems and suggest new applications in Bangladesh of such systems. 56 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book contains all my papers on antimicrobial and antioxidant activity of various plant extracts and how these extracts are utilized for the development new drugs. This book also represents quality parameters for the extraction of… various plant materials and how we can check antimicrobial activity against various micobes insides various animals. Therefore this workwill be useful for the modern world to develop newdrugs from the varios plant extracts. 116 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Traditionally due to limited signal processing abilities and expensive professional equipments, malicious manipulation of image was a tedious task. But with the rapid growth in technology and internet distribution of digital media, an… urgent need for copyright protection is been created because of easy replication and modification.Traditionally the authenticity and integrity of data was resolved using techniques like cryptography and digital signature.Cryptography is the science of writing data in secret codes. But the cryptography does not always provide safe communication, since the encrypted message causes suspicion.Digital signature emphasized protecting the rights of customer, but the drawback of conventional schema is the extra bandwidth needed for transmission of the signature.Watermarking is the technique which emphasizes on protecting the right of service provider.Digital watermarking is the process of embedding information into a digital signal. The signal may be audio, picture or video.Digital data could be easily copied, modified, tampered without legal authorization during multimedia transmission. Thus of importance the watermark is needed. 60 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This paper presents the thrust optimization of Electro-hyrdodynamic (EHD) thrustersthrough theoretical, experimental, and simulation approaches. The underlying forceproduction theory is explained with electrical concepts, such as coro…na discharge, electrodepolarity, Corona Inception Voltage (CIV), and air breakdown principles. These concepts areapplied to the development of the theoretical derivation of the thrust equation relating thedesign variables in an EHD Thruster. The theoretical relationships derived were used toapproximate an EHD Thruster with the optimal force-to-weight ratio.Using the guiding design principles, a successful proof-of-concept EHD lifter modelwas built and tested. Although many of the design hypotheses were theoretically-sound, an updatedset of conclusions were expressed to explain and improve the failed trials with differentthruster geometries, electrode sizes, collector shapes, and various materials.The electrostatics, chargetransport, and hydrodynamics governing equations were implemented with the software toobtain graphical representations of the electric field and velocity airflow distributions of 2-Dand 3-D thruster models. 120 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is based on the basis that machine learningalgorithms and rank based statistical methods are abetter choice to develop a robust model in logicalsituations. We designed experimental setup for datacollection, developed unique…class of model includingvariable selection, and detection methods. Theselected significant variables provide a unique classof model for all six participants. We emphasize thebest selected variables have good information formodel development, and each selected variable have noerror i.e.; AUC=1, with forward selection and supportvector data description classifier. Basically, wedeveloped a unique class of model using six differentclasses of subjects, predicting elderly fallprevention, and after doing external validation withseventh class of subject, we reached a uniquesolution. Sections one is research introduction,section two is all about research design and dataanalysis, section three and four give extensivedevelopment of model for variable selection and oneclass classifier. Then finally given the conclusionand future aspect of whole study. 72 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Numerical methods are powerful problem-solving tools, Techniques of these methods are capable of handing large system of equation, some problem in physics and engineering which are impossible to be solved analytically. The main object… in this thesis is to study and reformulate some numerical methods for solving system of retarded delay differential equations. We get good results in each presented methods for solving system of retarded delay differential equations. This is done by writing a computer Maple program version 13. For the purpose of comparison we compared exact results with approximate solution which is obtained by the above methods. 92 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This has made a unique contribution to the understanding of the broad sweep of technical developments in wireless communication and security technologies. We are focused on the topic, precise in use of words and balanced in approach,…explain complex concepts clearly and concisely, also used figures and tables to further explain difficult concepts.The Key Features include: Remote monitoring allows us to access real-time data (audio/video) of critical areas we want to monitor. The system consists of a transmitter & Receiver. The Transmitter composed of Camera & Audio collector circuit which transmits the real time audio/video of the specific area to the Receiver through portable wireless medium spanning a distance of about 100m. The system enables us to connect remotely to any particular area for security purposes and a variety of applications. 64 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The fisheries resources in Lake Victoria are facing the challenges of poor management, which threaten their sustainability due to the use of destructive fishing gears such as dynamite, beach pollution, poison and small fishnets. Such…situation has necessitated the use of alternative management approaches like Beach Management Units (BMUs), which promote more community involvement in the fisheries resources management. The objective of the study was to assess the effectiveness of BMUs strategy for managing the Lake Victoria fisheries resources. The emphasis was on how BMUs have managed to facilitate effective management of the lake environment. Findings from the study show that BMUs in the Lake Victoria basin have succeeded in reducing unsustainable practices and ensuring sustainable management of the fisheries resources. However, they need more moral and material support for enhanced sustainability. Target group include community members and stakeholders such as policy and decision makers, researchers, government and non-governmental institutions involved in the management of fisheries resources in the lake and aquatic environment in general. 88 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is a book for graduate students and researchers who wish to learn about carbon nanotubes and engage in the research and development of carbon anotubes and their applications in various fields.The carbon nanotubes were considered…to be one of the most potential nanomaterials in this century. The field has recieved a considerable attention and is achieving continuos progresses in both research and industrial applications.The book includes a brief introduction on carbon nanotubes. But it mainly focuses on aligned carbon nanotubes. The synthesis and microwave absorption properties of aligned carbon nanotubes were investigated in the book. The all datas on aligned carbon nanotubes were obtained from a long time investigation in my group in past a dozen years. I hope the book can become a useful handbook for students and researchers who is engaging in studies and development of carbon nanotubes or will be in the field in the near future. 64 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -AAA's. Quinolones and Fluoroquinolones: Man-made antibiotics. This book is designed to provide a detailed account on quinolones and fluoroquinolones. It is based on chemical and pharmacological principles which are necessary to unders…tand synthesis, structure-activity relationships, and molecular mechanisms of drug action making it easy to read and understand for use by both undergraduate students of pharmacy and medicine, and postgraduate students of medicinalchemistry and pharmacology. Features at a glance: - Introduction to quinolone antibiotics - Classification - Structural developments, SAR and QSAR - Molecular mechanism of action - Antimicrobial spectrum & bacterial resistance - Synthesis of some important quinolones - Therapeutic uses. 108 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Titanium alloys is of interest for various desirable properties such as corrosion resistance, bio compatibility and high specific strength. However,their tribological properties is generally poor relative to that of steel. Contents of… this book includes introduction on various surface treatment of titanium alloy such as thermochemical treatment and hard coating. Recent concept of duplex coating is also described. The main focus of this book is on the surface treatment of titanium alloy via DC triode plasma nitriding; its principles of operation and basic mechanisms. This is contributing towards substrate enhancement for duplex coating system. 68 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Since Diffie and Hellman proposed the concept of key agreement protocols (KAP) and public key cryptosystems (PKC) in 1976, various KAP and PKC were proposed. The typical examples of KAP and PKC are almost based on the factoring proble…m of large integers, the discrete logarithm problem over finite fields and the elliptic curve discrete logarithm problem. It is said that these problems are efficiently solved in a polynomial time by quantum computers. This book presents some KAP that are the fundamental cryptographic primitives with enciphering and digital signature for the secure communication. The main issue of this book is the proposal of three new KAP over the non-commutative ring. I attached a simple numerical example of KAP for reader to understand the procedure of making common keys. Three proposed KAP are based on the computational difficulty for solving the multivariate algebraic equations of high degree to be one of NP problems. To break these KAP we probably need to solve the multivariate algebraic equations of high degree. Then proposed KAP seem to be immune from the attacks by quantum computers. This book is written for graduate students to active researchers. 72 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Bioinformatics is the application of statistics andcomputer science to the field of molecularbiology.The term bioinformatics was coined by PaulienHogeweg and Ben Hesper in 1978 for the study ofinformatic processes in biotic systems. I…ts primaryuse since at least the late 1980s has been ingenomics and genetics, particularly in those areas ofgenomics involving large-scale DNAsequencing.Bioinformatics now entails the creationand advancement of databases, algorithms,computational and statistical techniques and theoryto solve formal and practical problems arising fromthe management and analysis of biological data. Overthe past few decades rapid developments in genomicand other molecular research technologies anddevelopments in information technologies havecombined to produce a tremendous amount ofinformation related to molecular biology. It is thename given to these mathematical and computingapproaches used to glean understanding of biologicalprocesses.Common activities in bioinformatics includemapping and analyzing DNA and protein sequences,aligning different DNA and protein sequences tocompare them and creating and viewing 3-D models ofprotein structures. 120 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Microwave Tomography has many biomedical applications like brain imaging, temperature sensing in different biological tissues and breast cancer detection.In a microwave tomography system, a number of radiators are used to transmit mic…rowave signal into the object under test and the scattered fields are recorded. The collected data is used to quantitatively reconstruct the dielectric profiles of the object under test through inverse scattering mechanism.It has been shown that by using wide band data, highly stable and high resolution constructions can be obtained that is why Ultra wideband Antennas are required in microwave tomography systems. In this book different microstrip patch antennas have been analysed for micowave tomography applications. 80 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Predicating evolution and transport of nitrate, acommon groundwater contaminant in agriculturalwatersheds, can reliably be done through numericalmodelling. This publication is an elaboration of thenumerical technique and simulation pr…ocedure fornitrate transport through a porous media. equationsgoverning fluid and contaminant transport through porous media aresolved numerically using the integrated finite difference method. the algorithms generated are then implemented using object oriented computercodes written in C++ programming language.the usefulness of the simulator in proved atvalidation stage where the simulated results are wellcomparable to field data obtained from the area ofsimulation. the manuscript is beneficial toprofessionals and students of environmentalphysics,civil and water engineering, and appliedmathematics. 104 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Wireless technology provides an array of applications viz wireless phones,wireless Internet access &WLAN.These systems are prone to performance degradation due to multipath fading, pol. mismatch So Service,Quality,Security and Capacit…y are of primary importance.To solve these space time processing is used,that is signal processing performed on a system in both the spatial and temporal dimensions of the radio cannel.These can be applied at the Tx or Rx or both.At the Receiver MIMO techniques are used.Rx Diversity schemes are MRC,EGC &SC.Of these MRC is considered as it provides the maximum SNR at the output.In MRC the output signal is the weighted sum of the input signals present at the input of the array.In a practical combiner the channel can never be estimated perfectly because of multipath fading. This results in errors in channel estimation which effect the weighing factors of the combiner.The performance of the MRC degrades w.r.t.output SNR and BER. Here the effects of imperfect channel estimation resulting in gaussian errors in the weights of MRC are studied.Performance of MRC in different fading channels with imperfect channel estimates & digital mod.tech. is analyzed. 96 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this thesis leakage reduction techniques like stack forcing, multiple threshold CMOS, variable threshold CMOS are explored, that mitigate leakage in circuits, operating in the active mode at various temperatures. Also, implications… of technology scaling on the choice of techniques to mitigate total leakage are closely examined. The result is guidelines for designing low-leakage circuits in nanometer technology nodes. Logic gates in the 180nm, 130nm, 100nm and 70nm technology nodes are simulated and analyzed. Here delay analysis of various logic circuits are also examined. 100 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Video contains various types of data that can be extracted using various techniques and tools. The extracted data can be used in developing video retrieving and indexing systems. Video s speech is rich with information and can be used… by students as a supporting tool in learning process. Searching for the part of interest may require manual searching through the entire video which may be time consuming. This book which is based on a researchstudy focuses on investigating the existingapproaches of searching and retrieving videos, anddevelops a method to make video content more easilysearchable. A web-application prototype was developedusing Java and JSP for searching the video speechusing keywords. This book will be especially usefulto video retrieval and e-learning systems developers,researchers, Computer Science lecturers, and students. 72 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -As a resolution of the well-known hierarchy problem,like supersymmetry the model of extra spatialdimension(s) proposed by N.~Arkani-Hamed,S.~Dimopoulos and G.~Dvali(ADD) in 1998, and byL.~Randall and R.~Sundrum(RS) in 1999, have gener…atedconsiderable enthusiasm among the physics community. In this thesis, we have made a phenomenologicalstudy of both of these models. After a briefintroduction of the ADD model and the RS modelin chapter 1 and chapter 2 and a brief review of theexisting phenomenlogical studies in chapter 3, wehave derived the order $kappa^2$ Feynman rules inthe context of ADD model. In chapter 5, we haveinvestigated theeffect of gravity in the DIS (i.e. the process $e^+ +p rightarrow e^+ X$) and compare our result withthat at HERA to constrain the parameters of the RSmodel. In chapter 6 and chapter 7, we haveinvestigated several phenomenologicalconsequences of the radion (which appears naturallyin the RS model in order to stabilize thesize of the fifth spatial dimension). Chapter 8contains the summary and the conclusion of the thesis. 112 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This licentiate thesis presents Bukhgeim's result of 2008, which gives uniqueness for the inverse problem of the Schrödinger equation in the two-dimensional case. He proved that the boundary data given by an arbitrary potential in a p…lane domain determines that potential uniquely. After a brief historical review on related inverse problems the author starts to explain Bukhgeim's proof. The big picture is elegant. Given two potentials which give the same boundary data there is a weighted orthogonality relation for the solutions of the two Schrödinger equations. This weight is the difference of the potentials, from which stationary phase techniques give information. This is made possible by using Bukhgeim's new kinds of oscillating solutions. There is a point in the reasoning that is difficult to understand unless one assumes some differentiability for the potentials. This thesis tries to clarify that point. 68 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Superconducting materials, made up of metals, alloys and compounds are more important due to the characteristics of zero electrical resistance and magnetic levitation. In the present study, Bi (2223) system doped with various metal io…ns such as antimony, thallium and gallium and their structural, electrical and magnetic properties were investigated. These dopants were found to be useful in enhancing the zero resistivity temperature Tc(0). This study is useful for the researchers in advanced conducting materials, metallic compounds, and oxides. It is also the source of reference for the material scientists, especially those who are working on high-Tc superconducting materials. 104 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It has long been known that the uptake of high fat content & their deposition leads to atherosclerosis. Atherosclerosis is referred to as a silent killer, is one of the leading causes of death in the developed countries. The treatment… of hyper lipidamia is considered. To be one of the major approaches towards decelerating the atherogenic process. Recently herbal hypolidemia has gained importance to fill the lunac created by allopathic drugs. The results of various studies have revealed that feeding of atherogenic diet leads to increased serum total cholesterol, LDL cholesterol and decreased HDL cholesterol. Coconut and coconut oil has been the subject of controversy for mearly three decades. Very extreme conclusions have been taken on the consumption of coconut oil. There has been a tendency to establish a link between coconut and coronary artery desire without taking in to view the various other factors that contribute to the incidence of cardiovascular disease. Hence the propose of our study was to explore the influence of coconut oil in hyper cholestrolemia and compare its effects with palm oil. Since diet has suspected to play a role in the development of coronary artery diseas 64 pp. Englisch.
