Resistance welding equipment. Transformers. General specifications applicable to all transformers
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Materials Literature
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EIC news
The 32nd Electrical Insulation Conference to be held in Philadelphia, Pennsylvania, between the 8th and 11th of June 2014 (see sites.ieee.org/eic) is less than three months away. You do not need to be an author to attend the meeting, and for those wishing to accompany colleagues or who are keen to discuss the latest d…
Call for papers [2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena]
The Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) is sponsored by the IEEE Dielectrics and Electrical Insulation Society to provide an international forum for the discussion of current research on electrical insulation, dielectric phenomena and related topics. The conference provides an opportun…
From the editor's desk
This issue contains five articles, the first of which is titled "Equilibrium Charts for Moisture in Paper and Pressboard Insulations in Mineral and Natural Ester Transformer Oils" by Valentina Mandic and Jelena Lukic of the Electrical Engineering Institute Nikola Tesla, Belgrade, Serbia, and Christophe Perrier and Mam…
DEFLECTION AND CRACKING
DEFLECTION AND CRACKING In normal design practice, reinforced concrete structures are designed for the ultimate limit state. As explained in Chapter 6, the serviceability limit state criteria such as maximum deflection, maximum crack widths are not checked by detailed calculations but by meeting deemed-to-satisfy rule…
Rubber. Identification of polymers. Pyrolytic gas-chromatographic method using mass-spectrometric detection
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Mathematical Description Typification in the Problems of Synthesis of Optimal Controller of Foundry Technological Parameters
The problems of finding efficient in practice mathematical models for foundry technological processes should be solved based on the required combination of their simplicity and adequacy. In this case, typification, which consists in identifying general laws of mathematical description of process parameters, taken into…
Partial oxidation reforming of methane to synthesis gas by chemical-looping using CeO 2 -modified Fe 2 O 3 as oxygen carrier
The CeO2/Fe2O3 oxygen carriers were prepared by co-precipitation method and their characterization was carried out using X-ray diffraction (XRD) and scanning electron microscope (SEM). The partial oxidation reforming of methane was tested in a fixed-bed at different operating conditions. The temperature programming re…
Estudo dos algoritmos de classificação de elétrons no experimento atlas
O Modelo Padrao reune tudo o que e atualmente conhecido sobre os mais fundamentais constituintes da materia e suas interacoes. Embora o Modelo Padrao descreva com precisao os fenomenos dentro do seu dominio, ele ainda esta incompleto. Desta forma, novas informacoes a partir de experimentos no Grande Colisor de Hadrons…
Estudo das propriedades termo-ópticas em sistemas vítreos PZABP dopados com nanocristais semicondutores ZnTe e íons Eu3+
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Study on Strategies for Methane Injection in a DISI (Direct Injection Spark Ignition) Engine
This paper deals with the application of two different injection strategies in a natural gas direct injection spark ignition single-cylinder engine model. The analysis includes the air flow characterization during compression stroke and also the charge stratification. Two different swirl ratios are applied and piston…
The Mediating Role of Radical Innovation in the Relationship Between Knowledge Management and Competitive Advantage in Sudanese Manufacturing Firms
This paper presents a unified scaling law for biosensor using nanogolds in various structures of nanorods, nanoshells and nanoslits. Analytic formulas are developed by a generalized geometric factor (G) for the resonance wavelength and the associate sensitivity, where G depends on structure types and is defined by: th…
KUAT TEKAN BETON PADA BERBAGAI VARIASI UMUR UJI DENGAN BAHAN RETARDER TETES GULA/ MOLASSES
Tetes gula atau Molasses merupakan hasil sampingan pada proses pembuatan gula dari tebu. Tetes gula ini berupa larutan kental berwarna hitam kecoklatan dan mempunyai sifat fisik yang mudah larut dalam air dingin dan kadar senyawa gula masih berkisar antara 50 – 60%. Secara umum, bahan additive bersifat retarder terben…
Avaliação da resistência à corrosão de revestimento à base de inconel 625 utilizando os processos de soldagem MIG e plasma pó.
Submitted by Severina Oliveira (severina.sueli@ufcg.edu.br) on 2019-02-18T17:39:17Z No. of bitstreams: 1 AURELIANO XAVIER DOS SANTOS-DISSERTAÇÃO-PPGEM 2014.PDF: 19014040 bytes, checksum: 031c75384389925982e85a5ee7e48bbb (MD5)
Síntese e caracterização de polímeros derivados do Ácido 2 - Hidroxifenilacético e do Ácido 2 - Hidroxibenzóico
Conductive polymers have conjugated double bond in its structure, having a wide variety of applications as biosensors, sensors, electrochromic devices, batteries, etc.. In this work polymers derived from 2-hydroxybenzoic acid (2-HBA) acid and 2-hydroxyphenylacetic acid (2-HPA) by electrochemical and chemical means hav…
Focus: X rays Measure Lone Molecules
Researchers measured an atomic distance in a molecule without using a crystal, which is usually required. Instead they used a beam of isolated molecules.
Research progress of calcification and anti-calcification of implanted silicone rubber
Calcification of silicone rubber is a pathologic mineralization phenomenon which occurs on the surface after it is implanted in vivo,and there is no effective prevention method.The important process of calcification including these steps:phosphate ions combined with calcium ions to promote nucleating aggregation,slow…
Docetaxel-loaded nanoformulation based on star-shaped M-PLGA for cervical cancer therapy
Objective Mannitol-poly(D,L-lactide-co-glycolide) (M-PLGA),a star-shaped biodegradable polymer,was synthesized with the intent in this research,to provide novel nanoformulation for cervical cancer chemotherapy.Methods The novel star-shaped copolymer was prepared by ring-opening polymerization,and characterized by NMR.…
Advances in research on protein adsorption process in the biomaterial surface
The study of protein-surface interactions represents one of the most important topics in the field of biomaterials.It is believed that blood cells do not actually contact the biomaterial surface directly,but rather interact with the molecular structure of the adsorbed protein layer.Therefore,protein plays a key role i…
Calculation of dose-rate conversion factors in water immersion external exposure to photons with Monte Carlo method
Objective To obtain the dose-rate conversion factors (DRF) in water immersion external exposure to photons.Methods Before performing the calculation of DRFs in water immersion external exposure to photons by developing a physical model with MCNP,the ORNL-MIRD has been improved in accordance with the latest data recomm…