نتایج جستجو برای: diagnostic power

تعداد نتایج: 773155  

2007
Chengqi Zhang Yue Xu

Two layer causal networks are limited for representing real diagnostic problems. In this paper, a neural network diagnosis method based on a multiple layer causal network is proposed. Multiple layer networks have the power to represent complex diagnostic problems. Therefore, the method proposed in this paper is more practical for real world diagnostic problem solving than the method proposed in...

2012
E. H. Agba

The average acoustic power and intensity levels from diagnostic ultrasound machines at five major Hospitals in Benue State were measured using ultrasound power meter UPM-DT-10AV. The ultrasound machine at Christian Hospital Mkar, Immaculate Conception Hospital Makurdi, Federal Medical centre Makurdi, Myom Hospital Gboko and Lobi Specialist Hospital Makurdi were used for the research work. The u...

Journal: :Acta medica portuguesa 1981
M A Serra J M Rodrigo J Guix F Montes A Wassel L Aparisi J A Olmo M Bixquert

We have studied the results of 10 hepatic tests with multivariate linear discriminant analysis in 44 normal subjects and 88 cirrhotic patients. The results prove that the functional tests with major diagnostic power re those that analyse the functional reserve of the liver, basically the clearance and transport maximum of bromsulphalein. Both give us a diagnostic error of 1.2% and the addition ...

2015

The power analysis of a diagnostic test is often based on the sensitivity and specificity of the test. In such a test, the outcome of the diagnostic screening test is compared to the gold standard. In the common case-control study, the gold standard must be known before. In a prospective study, the gold standard is determined subsequent to the study, so the case-control framework is not appropr...

2012
Rongjie Wang Haifeng Zhou

Abstract. a novel method of fault diagnosis for power electronics rectifier based on PCA-SVM is presented in this paper. First, the features of the fault was extracted by principal component analysis (PCA), an SVM algorithm was introduced to train the SVM for diagnosis. Experimental results presented in this paper show that the diagnostic method has very good diagnostic ability and efficient; a...

2013
Gunes Senol

Microscopy has been a diagnostic tool for TB for over a century, and still currently the most rapid diagnostic method. Standard light microscopy (LM) and fluorescent microscopy (FM) are common methods. The recent development of light emitting diodes (LED), with the ap‐ propriate fluorescent light output for FM and low power consumption, has led to the devel‐ opment of simple, robust LED FM micr...

2010
Y. Gritli A. Stefani C. Rossi F. Filippetti A. Chatti

This paper introduces a new diagnostic technique for the detection of incipient electrical rotor faults in doubly fed induction Machine (DFIM) for wind power systems. In the considered application, the rotor is supplied by a static converter for the control of active and reactive power flows from the generator to the electrical grid. A new diagnostic method based on the rotor modulating signals...

Journal: :the journal of tehran university heart center 0
maryam esmaeilzadeh shaheed rajaie cardiovascular medical and research center, tehran, iran.

echocardiography plays a fundamental role in the evaluation of patients with an intracardiac mass. the ability to distinguish tissue characteristics, location, attachment, shape, size, and mobility non-invasively, quickly, and without the use of ionizing radiation makes echocardiography the ideal diagnostic modality. with careful attention to mass location and morphology, and appropriate applic...

Journal: :medical journal of islamic republic of iran 0
amene homami department of medical genetics and molecular biology, iran university of medical sciences, tehran, iran. farideh ghazi department of medical genetics and molecular biology, iran university of medical sciences, tehran, iran.

bladder cancer is the fifth most common cancer with significant morbidity and mortality. recently, numerous studies demonstrated that micrornas are emerging as diagnostic biomarkers for bladder cancer. specific mirna profiles have been identified for several samples from patients with bladder cancer. micrornas are noncoding rna molecules of approximately 23 nucleotides that play important roles...

Journal: :journal of food quality and hazards control 0
g. eslami research center for food hygiene and safety, faculty of health, shahid sadoughi university of medical sciences, yazd, iran l. manafi department of parasitology and mycology, faculty of medicine, shahid sadoughi university of medical sciences, yazd, iran s. peletto istituto zooprofilattico sperimentale del piemonte, liguria e valle d'aosta, turin, italy

background: dna extraction is one the most important steps for molecular analysis of food-borne pathogens. in this research, three methods of dna extractions from beef harboring sarcocystis spp. were compared for the quality, quantity, safety, as well as cost-effectiveness. methods: about 100 mg intersostal and diaphragm were collected from 10 slaughtered cattle. after ensuring their contaminat...

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