Яндекс.Метрика

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Characterization of EM welds characterization of em welds
The objective of this present study is to characterization of EM welds; Electromagnetic welding is a solid state welding process, which produces a weld between two mating surfaces at high velocity of impact. In this report the metallurgical characterization of electromagnetic welds carried to find the presence of wave at the weld interfaces by using optical microscope and scanning electron microscopic results. Metallographic and micro hardness results of the welded specimens for the welding processes and Numerical analysis of impact welding are also presented here. Studies have revealed that critical velocity of impact is an important parameter for creating waves at the weld interface.
3549 RUR
Effect of Pre-and-Post heat and Heat inputs on Micro alloyed Steel characterization of em welds
The effects of preheating, post weld heating and arc welding parameters on the microstructures and mechanical properties of SAILMA 300 HI steel welds in comparison to normal welds were experimentally determined. The results show that when preheating and/or Post Weld heat temperature increases the yield strength, ultimate tensile strength, and hardness of welds slightly decreases, on the other hand percentage elongation, percentage reduction in area and toughness increases as compared to normal welds.The combined condition of pre- and post- heating of welds showed best improvement in toughness. The effect of heat inputs (function of current, voltage and travel speed) on mechanical properties also show same pattern as preheating.Micro structure studies reveal that when preheating and post heating temperatures and heat inputs are increased, tempering of brittle phases and grain coarsening occurs, as compared to normal welds.This combination provides maximum volume fraction of acicular ferrite in welds which is desirable because it provided a good toughness and tensile strength to the welds.
7890 RUR
House Of Marley Positive Vibration Ii (em-jh121-sb) characterization of em welds
Накладные наушники с микрофоном
3990 RUR
House Of Marley Smile Jamaica (em-je041-ra) characterization of em welds
Внутриканальные наушники с микрофоном, прочный кабель в тканевой оплетке, L-образный штекер
1690 RUR
House Of Marley Positive Vibration Ii (em-jh121-dn) characterization of em welds
Накладные наушники с микрофоном
3990 RUR
House Of Marley Smile Jamaica (em-je041-te) characterization of em welds
Внутриканальные наушники с микрофоном, прочный кабель в тканевой оплетке, L-образный штекер
1690 RUR
House Of Marley Smile Jamaica (em-je041-sb) characterization of em welds
Внутриканальные наушники с микрофоном, прочный кабель в тканевой оплетке, L-образный штекер
1690 RUR
Advanced Materials: Cubic Boron Nitride characterization of em welds
In the world of advanced materials, cubic boron nitride is an active competitor for diamond, with similar properties. To develop advanced materials, it is essential to have characterization techniques, which reveal the structure and chemistry of the samples. Especially in the era of nanotechnology, techniques capable of high spatial resolution are required. This monograph addresses characterization of abrasive cubic boron nitride (ABN) particles by X-ray diffraction (XRD), electron microscopy (EM) and electron energy loss spectroscopy (EELS) in the STEM. XRD profiles of ABN samples are correlated with particle morphology and compositional variations. EELS in STEM is utilized to gain nanostructural information as well as electronic structure. Results are given showing anomalous surface structure-a layer of h-BN as well as oxidation, stoichiometry, and inclusions inside the particles. ELNES is revealed for c-BN, h-BN, and BC2N and are compared with ab-initio theory and with previously recorded results. The book should be especially useful for those researchers developing new materials as well as for those concerned with modern characterization techniques in materials science and EM.
6690 RUR
Functional equations and characterization problems characterization of em welds
Solution of functional equations is an old problem of mathematical analysis. Functional equations and their applications are widely studied and can be applied in economics, physics and statistics as well. The results of the book are partly connected to the investigation of functional equations with restricted domains, for example when the restriction of the domain is explicitly given. On the other hand the results are also connected to the examinations, where the equations are satisfied only almost everywhere (with respect to the Lebesgue-measure) on their domain. We also deal with characterization problems of probability theory, such as characterization problems of univariate distributions (for example characterizations of gamma, beta, normal and exponential distributions) as well as characterization problems of conditionally specified bivariate distributions. This book can be helpful for both mathematicians interested in mathematical analysis and researchers interested in characterization problems of probability distributions.
4839 RUR
Community-based approach in characterization of local livestock breeds characterization of em welds
Characterization of Animal Genetic Resources is the first step towards a well informed decision on efficient utilization. Attempts were so far made to characterize indigenous Animal Genetic Resources in the tropics following the conventional methodological approaches of characterization. Breeding programs implemented in many tropical countries for the last decades were driven by the results of these characterization studies, although many of these ended expensive failures. This book argues the inefficiency of conventional breed characterization approaches in the case of indigenous breeds managed under traditional systems and presents the conceptual foundations of Community-based characterization approaches. The Methodology part sheds light on practical approaches to community-based characterization presenting a case study conducted to characterize the Issa goat breed in Eastern Ethiopia. The discussion part elaborates wide range of findings of the study which would otherwise be hard to realize via the conventional Approach and should be especially useful to Animal breeding professionals and policy makers working on formulation and analysis of breeding programs in the tropics.
6690 RUR
Growth and characterization of semi-organic GSC single crystals characterization of em welds
Growth and characterization of semiorganic GSC single crystals" contains, (a) Various techniques of crystal growth (b) Nonlinear Optical phenomenon (c) Principles of working of characterization methods like, (1) Energy Dispersive Analysis of X-rays (EDAX) (2) CHNS analyzer (3) X-ray Diffractometer (XRD) (4) Optical Microscopy (5) UV-Vis Spectrometer (6) Thermo gravimetry Analysis (TGA) and (7) Thermal Conductivity (d) Applications of the crystals.
3549 RUR
Escherichia coli strains associated with calf diarrhoea characterization of em welds
Present investigation was undertaken to study the seroprevalence, colicin production, identification and characterization of fimbrial antigens of E.coli associated with calf diarrhoea. During the course of study, a total of 146 faecal samples were obtained from diarrhoeic calves of different age groups from various dairy farms of Bikaner and processed for the isolation and characterization of E.coli.
3549 RUR
Characterization of novel metalloprotein sensors and carboxypeptidases characterization of em welds
The focus of this research was the characterization of three metallroteins. The characterization was based on the information obtained from their structures and biochemical data obtained from in-vitro and in-vivo experiments. The structures of the three proteins studied were obtained by x-ray crystallography. The first protein studied was the hemerythrin-like domain from the Desulfovibrio vulgaris chemoreceptor H, DcrH-Hr. The second protein was the Bacillus subtilis M32 carboxypeptidase, BsuCP. And the third protein was one of the M32 carboxypeptidases from Leishmania major, LmaCP.
4839 RUR
Anhydrous Ammonia Nurse Tank Safety characterization of em welds
Anhydrous ammonia is one of the most widely used and most dangerous agricultural chemicals. It is transported to farm fields in nurse tanks: steel pressure vessels towed behind tractors or trucks. Nurse tank failures have caused fatalities, injuries, and property damage. This document describes several problems commonly associated with nurse tanks that can lead to failure, including: stress corrosion cracking, residual stress in unannealed welds, improper welding methods, and metal fatigue. Special emphasis is placed on neutron diffraction measurements of residual stresses in and near welds; a side-angle ultrasound survey of a large population of used nurse tanks to determine the number, orientation, and size of cracks; analysis of welding flaws leading to pinhole failures; stress corrosion crack growth rate experiments; and tank lifetime estimation based on growth of existing stress corrosion cracks in nurse tanks.
9390 RUR
Soil Organic Matter Characterization characterization of em welds
Soil organic matter characterization in arable soils is essential to sustain agricultural lands. The present investigation was initiated with some representative soils of Khulna and Jessore district to characterize organic matter under different cropping patterns. The study has a scope to focus on the effects of organic matter characterization of four soil series under different cropping patterns of the study areas. Laboratory investigations were conducted in Soil science discipline, Khulna University to characterize organic matter of Ganges meander flood plain soils under different cropping patterns. Sixteen representative soil samples from different locations of Ganges meander flood plain soils were collected for study. The soils belong to Amjhupi, Ishurdi, Mirpur and Sara series. Organic matter characterization was done by humic acid, fulvic acid percentage, E4/E6 ratio, coagulation threshold value, and C/N ratio and they varied significantly under different cropping patterns.
4839 RUR