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Aproximadamente 33999 registro(s) hasta el momento: (journal)

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Recurso libre

Tuberculin skin testing in HIV-infected patients in Campo Grande, Mato Grosso do Sul State, Brazil.
OLIVEIRA, S. M. V. L . de; - PANIAGO, A. M. M. - BONECINI-ALMEIDA, M. G. - BERTONI, N. - STABILE, A. C. - CUNHA, R. V. da - OLIVEIRA, O. A. de - DRUZIAN, A. F. - NEGRI, A .C. - ANDREOTTI, R.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	A cross-sectional study on HIV/AIDS was carried out in 108 outpatients from the university hospital of the Federal University of Mato Grosso do Sul, Campo Grande, Brazil, from July to December 2008, to investigate latent tuberculosis infection using the tuberculin…
Fecha:	2011-06-07
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

Length-weight relationships of four freshwater ornamental fish species from the Brazilian Negro River basin.
SANTOS, M. Q. de C. - LEMOS, J. R. G. - PEREIRA, C. do N. - OLIVEIRA, A. T. de - TAVARES-DIAS, M.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	The present work reports the length?weight relationships (LWR) for four ornamental fish species from the middle Negro River basin, Amazonas, Brazil. The r2 value ranged from 0.810 to 0.941 and values of b varied from 2.346 to 3.442. These results…
Fecha:	2012-07-24
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

Mating system parameters in Stylosanthes guianensis (Aubl.) Sw. based on RAPD markers
CHIARI, L. - RESENDE, R. M. S. - Matida, E. T.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	This study investigated the mating systems in Stylosanthes guianensis, an important tropical forage legume. Twelve progenies were analyzed with 21 polymorphic random amplified polymorphic DNA (RAPD) loci. The mating parameters estimated using the mixed mating model showed that this population…
Fecha:	2011-04-09
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

Concentrações de ácido indolbutírico no enraizamento de Cryptomeria japonica.
KRATZ, D. - WENDLING, I. - BRONDANI, G. E.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	2011
Fecha:	2011-07-29
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

Information systems outsourcing: a Delphi study from Spain
González Ramírez, María Reyes - Gascó Gascó, José Luis - Llopis Taverner, Juan

Formato:	info:eu-repo/semantics/article
Enlaces:	Purpose – The widespread growth of information systems (IS) outsourcing on an international scale contrasts sharply with the somewhat limited development of this practice in Spain. The purpose of this paper is to deal with the situation of IS outsourcing…
Fecha:	2011-05-13
Recurso:	RUA Docencia

Recurso libre

A snapshot of strategy research 2002-2006
Adcroft, Andy - Willis, Robert

Formato:	Article
Enlaces:	Purpose: The aim of this paper is to assess both the philosophical underpinnings and contributions to knowledge made by research in the field of strategy in the five years between 2002 and 2006. Design/methodology/approach: The paper begins with…
Fecha:	2011-07-28
Recurso:	Anglia Ruskin University

Recurso libre

Breaking the silence: the traumatic circle of policing
Rees, Bronwen A. - Smith, Jonathan A.

Formato:	Article
Enlaces:	Operational police officers often work in traumatic situations. Whilst training and support is provided to officers in these areas in the UK, and some debriefing and counselling is provided, this is not fully effective in addressing the so-called ‘attitudinal’ problem…
Fecha:	2011-07-28
Recurso:	Anglia Ruskin University

Recurso libre

Crossing the theory/practice divide: the emergence of a new world view and its implications for business education
Rees, Bronwen A.

Formato:	Article
Enlaces:	Suggests that we are reaching a crisis in the Western worldview where abstract thinking has lost touch with nature as untrammelled growth leads to chaos in the money markets, global warming and violence. The purely rational worldview which began with…
Fecha:	2011-07-28
Recurso:	Anglia Ruskin University

Recurso libre

Talking about organisations
Rees, Bronwen A. - Armitage, Andrew M.D.

Formato:	Article
Enlaces:	Can dialogue reveal hidden truths? This is what prompted Bronwen Rees and Andrew Armitage to experiment with the dialogical process to explore how realities and knowledge about our organisations are created.
Fecha:	2011-07-28
Recurso:	Anglia Ruskin University

Recurso libre

10.

Consumers' perceptions about food quality attributes and their incidence in argentinean organic choices
Rodríguez, Elsa Mirta M. - Lupín, Beatriz - Lacaze, María Victoria

Formato:	Artículo, PeerReviewed
Enlaces:	The objective of this paper is to analyze consumers' perceptions about risk and quality attributes of food consumption; and to evaluate the incidence of these factors when buying organic products in the Argentinean domestic market. Data derives from a food…
Fecha:	2011-07
Recurso:	Facultad de Ciencias Económicas y Sociales - UNMdP

Recurso libre

11.

Achieving uniform cement mantle of optimum thickness during orthopaedic surgery
Mootanah, Rajshree - Lamvohee, Steeve - Dowell, John K.

Formato:	Article
Enlaces:	Descripción completa.
Fecha:	2011-08-18
Recurso:	Anglia Ruskin University

Recurso libre

12.

Acumulação de matéria seca pelo guaranazeiro Paullinia cupana var. Sorbilis.
SANTOS, L. P. - BRAGANÇA, S. M. - COUTO, H. A. R. do

Formato:	Resumo em anais de congresso (ALICE)
Enlaces:	Com o objetivo de avaliar a acumulação de matéria seca pelo guaranazeiro (Paullinia cupana var. Sorbilis (Mart.) (Ducke), foi conduzido um experimento em Presidente Figueiredo/AM, em Latossolo Amarelo Distrófico, com delineamento blocos casualizados, 12 tratamentos (época de amostragem) e 3…
Fecha:	2011-11-07
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

13.

Taxa de acumulação de nutrientes pelo cafeeiro conilon.
BRAGANÇA, S. M. - SANTOS, L. P. - LEITE, H. L. - VOLPI, P.S.

Formato:	Resumo em anais de congresso (ALICE)
Enlaces:	Conhecer a taxa de acumulação dos nutrientes pelo cafeeiro conilon é fundamental ao manejo da adubação, visando à máxima eficiência de utilização dos fertilizantes, reduzir os custos de produção e tornar o sistema sustentável; principalmente em lavouras fertirrigadas. Assim, com…
Fecha:	2011-11-07
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

14.

Four-Wave Mixing Aplication in Semiconductor Optical Amplifier
Odrobinak, Radoslav

Formato:	,
Enlaces:	Four-Wave Mixing (FWM) in semiconductor optical amplifiers is an attrative mechanism for wavelenght coversion in wavelenght-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges. A series of systems experiments evaluating several aspects…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

15.

Reliability of Telecommunication Systems by Various Repair Regime
Trstensky, Dusan - Schwartz, Ladislav - Trunkvalter, Milan - Bartos, Roman

Formato:	,
Enlaces:	In the past the reliability of the telecommunication systems was evaluated on the simple assumption of the independence of elements. Comuputation of steady - state series - system availability depends on specific assumptions made about the non failed items during…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

16.

Computers and the Teaching of the Technical Subject
Ticha, Dasa - Bores, Petr

Formato:	,
Enlaces:	The contribution deals with the use of computers in the technical subject teaching. It shows more common view on the possibilities of the computer use. It also shows that there is a lin to concrete conditions of the use of…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

17.

Technical Benefits of Tram Vehicle Energy Accumulator
Maciolek, Tadeusz - Drazek, Zbigniew

Formato:	,
Enlaces:	Energy saving effects connected with use of energy accumulator on board of tram vehicle instead of substation are presented. Differences in results regarding weak and strong power supply system when taking into account energy losses and energy recuperation are pointed…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

18.

Features of Traction Transformer Windings Utilised as Inductances
Danzer, Jiri

Formato:	,
Enlaces:	The paper analyses features of traction transformer desing. Secondary windings of the transformer are utilized as a choke of an locomotive input filter at DC supplying system. Different ways of connections of the secondary windings coils are compared, reachable inductances…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

19.

Powers of Traction Rectifier Substation of DC ELectric Railways 3kV
Palecek, Josef

Formato:	,
Enlaces:	The article states main principles of dimensioning of traction supply stations DC traction current system. it also provides detailed results of the traction rectifier substation Ostrava-Svinov load measurement. The measured valued are subsequently used for calculation of characteristic coefficients, whitch…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

20.

Electrical Energy Quality Studies in 3 kV DC Electric Traction Systems for Different Schemes of Connection Traction Substation to Power Utility System
Mierzejewski, Leszek - Szelag, Adam - Jankowski, Pavel

Formato:	,
Enlaces:	The paper present aspects of DC electric traction system influence on electric energetic system. Study is based on modeling and simulation of electrified railway line. After simulation, there was performed analysis of energy quality, whitch using results of simulation and…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

21.

Decentralised Power Active Filters
Roch, Marek - Dobrucky, Branislav - Hosny, Wada M.

Formato:	,
Enlaces:	This paper deals with a decentralised power active filter control based on the separated computation of reference current for each active filter operating under determinated harmonic frequency. The basic principle of such controlled active filter is explained. It is shown…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

22.

Developing Trends of Railway Traffic Control
Tarnai, Geza

Formato:	,
Enlaces:	The future of a railway operator is depending on the success of simultaneous improvement of service quality and cost effectiveness. In this paper we are going to investigate, how traffic control systems - by their developing trends - can contribute…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

23.

Issues of ERTMS Implementation at the Polish Railways
Bialon, Andrzej - Mikulski, Jerzy

Formato:	,
Enlaces:	Short description of ERTMS system. Legal conditions of ERTMS system implementation on Polish Railway. Implemanetation study of the polot ERTMS installation for E-20 Warszawa-Kunowice. Trans-boundary section of ERTMS on the E-65 line Katowice - Bohumin. Necessity of ERTMS implementation with…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

24.

Optimalization of selected RFID systems Parameters
Vestenicky, Peter

Formato:	,
Enlaces:	This paper describes procedure for maximization of RFID transponder read range. This is done by optimalization of magnetics field intensity at transponder place and by optimalization of antenna and transponder coils coupling factor. Results of this paper can be used…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

25.

Power Analysis of Traction Transformer under Non-Sinusoidal Conditions
Kijonka, Jaromir - Orsag, Petr - Palecek, Josef

Formato:	,
Enlaces:	Article deals with power analysis of traction transformer 100/27 kV, Sn= 10MVA under non-sinusoidal conditions. The power analysis is evaluated by means of IEEE Trial Use Standard Definitions of the Electric Power Quantities under Non-Sinusoidal Conditions, Document Number: IEEE 1459-2000.
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

26.

Circuit Model of Traction Load under Non-Sinusoidal Conditions
Kijonka, Jaromir

Formato:	,
Enlaces:	Article deals with determination of circuit parameters of the traction load under non-sinusoidal conditions. The circuit parameters are defined by new integral transformation of measured non-sinusoidal voltage and current.
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

27.

Slew Rate and Step Response of the Noninverting Structure with an Operational Amplifier
Puncochar, Josef

Formato:	,
Enlaces:	When a large-step input voltage is applied to an operational amplifier (OP AMP) input, the output waveform reises with a finite slope called the slex rate which is due to an amplifier input stage current limiting (Im) and because of…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

28.

Electromagnetic Phenomena as the Principles of Material Nondestructive Evalution
Capova, Klara; University of Zilina - Cap, Ivo - Faktorova, Dagmar

Formato:	,
Enlaces:	In the paper the principles and application of nondestructive evalution by both electromagnetic acoustic transducer (EMAT) and the eddy current (EC) methods are introducted. The ultrasonic testing (UT) and the electromagnetic nondestructive testing (NDT) are presented with their fundamental properties…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

29.

Analysis of Vibration Microgenerator
Sperova, Alice - Fiala, Pavel

Formato:	,
Enlaces:	This contribution brings numerical results of the analysis of gravitation generator. The draft was created as a part of project trying to increase safety of air traffic.
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

30.

Comparing image compression methods in biomedical applications
Hargas, Libor - Hrianka, Miroslav

Formato:	,
Enlaces:	Compression methods suitable for image processing are described in this article in biomedical applications. The compression is often realized by reduction of irrelevance or redundancy. There are described lossless and lossy compression methods which can be use for compress of…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

31.

Advanced Method of the Elastomagnetic Sensors Calibration
Prascak, Mikulas - Fabo, Peter

Formato:	,
Enlaces:	Elastomagnetic method (EM method) is a highly sensitive non-contact evaluation method for measuring tensile and compressive stress in steel. The latest development of measuring devices and EM sensors has shown that the thermomagnetic phenomenon has a stron influence on th…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

32.

Investigation of High - Frequency Electromagnetic Fields Radiated by Mobile Phone
Darmova, Vilibalda

Formato:	,
Enlaces:	In the last few years mobile phones have become an usual part of our daily life. The number of their users increases rapidly every year. Frequency asked question among general public and among specialist is safety of mobile phones for…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

33.

Species of Botryosphaeriaceae associated on mango in Brazil.
COSTA, V. S. de O. - MICHEREFF, S. J. - MARTINS, R. B. - GAVA, C. A. T. - MIZUBUTI, E. S. G. - CÂMARA, M. P. S.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	2010
Fecha:	2011-04-09
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

34.

Journal of Organic Systems

Formato:	journal
Enlaces:	Descripción completa.
Fecha:	2011-11-29
Recurso:	Directory of Open Access Journals - DOAJ

Recurso libre

35.

Sweetness equivalence of different sweeteners in strawberry-flavored yogurt.
REIS, R. C. - MINIM, V. P. R. - BOLINI, H. M. A. - DIAS, B. R. P. - MINIM, L. A. - CERESINO, E. B.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	To successfully substitute sucrose for sweeteners, further studiesmust be carried out based on previous knowledge of sweetener concentration to determine the equivalent sweetness of such compounds. In this work, sweetness equivalence of strawberry-flavored yogurt with different sweeteners and/or their combinations…
Fecha:	2011-07-18
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

36.

Relations between formal linguistic insecurity and the perception of linguistic insecurity: a quantitative study in an educational environment at the Valencian Community (Spain)
Baldaquí Escandell, Josep Maria

Formato:	info:eu-repo/semantics/article
Enlaces:	What is the relationship between the awareness of linguistic prestige and the security or insecurity in the use of minoritised languages? Is formal linguistic insecurity (as initially described by Labov) the same as the speakers’ perception of linguistic insecurity? Which…
Fecha:	2011-12-15
Recurso:	RUA Docencia

Recurso libre

37.

El uso de la escritura reflexiva en clases de inglés como lengua extranjera y su efecto en el proceso de aprendizaje y en el rendimiento académico de estudiantes universitarios.
Rengifo Mejía, Elena del Pilar

Formato:	Tesis
Enlaces:	This is an instrumental case study based on the parameters of the qualitative model, which uses triangulation of data obtained from journals, learning logs, final reports, and observations. Moreover, with the aim of complementing qualitative data a statistical analysis of…
Fecha:	2011-09-21
Recurso:	Universidad San Francisco de Quito

Recurso libre

38.

Mapping violence against women laws in the world: an overview of state commitments
Vives Cases, Carmen - Ortiz Barreda, Gaby Margarita - Gil González, Diana

Formato:	info:eu-repo/semantics/article
Enlaces:	Descripción completa.
Fecha:	2011-07-20
Recurso:	RUA Docencia

Recurso libre

39.

The health implications of soy infant formula.
BADGER, T. M. - GILCHRIST, J. M. - PIVIK, R. T. - ANDRES, A. - SHANKAR, K. - CHEN, J. R. - RONIS, M. J.

Formato:	Artigo em periódico indexado (ALICE)
Enlaces:	2009
Fecha:	2011-07-08
Recurso:	Repositório Acesso Livre à Informação Científica da Embrapa (ALICE)

Recurso libre

40.

Preventive Methods for ATM Mode Control
Baronak, Ivan; Slovak University of Technology - Trska, Robert

Formato:	,
Enlaces:	Broadband transfer mode ATM represent one of alternative solutions for growing requirements on transfer capabilities. Its advantage is an effort for provisions of guaranteed quality of transport services with preservations of high transfer rate. This property is covered by several…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

41.

Wavelet Denoising of NMR Signal Using QMF Filter Bank Designed by Remez Algorithm
Kubasek, Radek - Gescheidtova, Eva - Bartusek, Karel

Formato:	,
Enlaces:	The wavelet transform is an up-to-date method for digital signal processing used in many branches of technofogy. One of its applications is the suppression of noise in useful signal. The paper deals with suppressing noise in a signal scanned on…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

42.

Resources of Digital FIR Filters Hardware Implementation in FPGAs for Digital Image Processing in Real Time
Kulla, Peter - Huska, Josef - Cvicela, Peter

Formato:	,
Enlaces:	The main image information content, from the human visual system viewing point, is focused into whole colorimetric and spatial informations. Because every image is result of some previous processes, the goal for all standard image processing methods is improvement colorimetric…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

43.

Measurement of the Switching Force without Force Sensor
Skala, Bohumil; University of West Bohemia in Plzen

Formato:	,
Enlaces:	At the railways, some parts of the a high speed corridor are being finished at present. In these corridors, trains can reach the speed of up to 160 km per hour. Consequently, the demand on switch point machine computer diagnostics…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

44.

Current and Speed Control of the Switched Reluctance Motor
Fort, Jiri

Formato:	,
Enlaces:	The papers deals with the problem of the current and speed control of the switched reculttance motor (SRM) on the base of the proposed mathematical model of the SRM. The basic types of the controllers are described (proportional controller, PI-controller…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

45.

Design and Parametr Analysis of Switched Reluctance Motor with Permanent Magnets
Rafajdus, Pavol - Hrabcova, Valeria - Trak, Ivan

Formato:	,
Enlaces:	This paper deals with Switched Reluctance Motor (SRM) parametr investigation, if permanent magnets are suitable inserted in stator parts to increase magnetic flux. The analysis is made on the base of input geometrical dimensions and materials of a real SRM…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

46.

Linear and Planar Variable Reluctance Motors for Flexible Manufactoring Cells
Szabo, Lorand; Technical University of Cluj Napoca - Viorel, Ioan Adrian - Szepi, Imre

Formato:	,
Enlaces:	Most advances manufactoring processes require precise linear motion for several tasks as material transfer, packaging, assembly or electrical wiring. To achieve precise linear motion, most of the usual high-performance manufactoring machines use X-Y sliding tables with rotary motors and rotary…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

47.

On the Large Synchronous Machine Parameters Calculatioin
Viorel, Ioan Adrian - Simond, Jean Jacques - Xuan, Mai Tu - Vicol, Liliana

Formato:	,
Enlaces:	The large synchronous generators were intensively studied, but not so many papers are entirely dedicated to the analythical calculation of the generator´s parameters. Therefore any contribution should be welcomed if it offers an improvement in the existing procedures or formulae.…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

48.

Intelligent Compact Drive System with a Synchronous Variable Reluctance Motor
Viorel, Ioan Adrian - Szabo, Lorand - Ciorba, Radu C. - Barz, Vasile

Formato:	,
Enlaces:	The increase of energy costs underlines the need to use more efficient drive systems. One of the best solutions to reduce energy costs is the use of variable speed drives. They can easily match motor torque and speed to the…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

49.

Transformer Load-Tap Changers: State-of-Art and Trends
Tesarova, Miroslava - Krasl, Milan

Formato:	,
Enlaces:	Load tap changes (LTC) are a major component of many transformers. They are used to change the voltage of secondary/primary side of a transformer to compensate for voltage variations in the power systems manly caused by variable loading. The paper…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering

Recurso libre

50.

Excitation of Oscillation on Input Filter of Traction Vehicle with Induction Motor
Lewandowski, Miroslaw

Formato:	,
Enlaces:	The phenomenon of oscillation created on input filter of traction vehicle with induction motor is analyzed here. Instability of the filter may occur especially in case when the receiver is responsible for the filter load and its power is maintained…
Fecha:	2011-07-07
Recurso:	Advances in Electrical and Electronic Engineering