نتایج جستجو برای: detection

تعداد نتایج: 565999  

Journal: :journal of research in health sciences 0
mohammad faryadres manoochehr karami abbas moghimbeigi nader esmailnasab khabat pazhouhi

background : few studies have focused on syndromic data to determine levels of alarm thresholds to detection of meningitis outbreaks. the purpose of this study was to determine threshold levels of meningitis outbreak in hamadan province, west of iran . methods : data on both confirmed and suspected cases of meningitis (fever and neurological symptom) form 21 march 2010 to 20 march 2012 were use...

Journal: :international journal of reproductive biomedicine 0
maryam dalili mohamad ali karimzadeh meybodi mohamad ghaforzadeh tahmineh farajkhoda hossein molavi-e vardanjani

background: spontaneous preterm labor is one of the common obstetrics problems causing several physical, psychological and economical outcomes. although due to these outcomes and the efficacy of cares for decreasing them, preterm labor screening is cost-effective and it is still one of the challenging issues in obstetrics. objective: in this study preterm labor screening by using cervical trans...

Journal: :iranian journal of medical physics 0
iman veisi m.sc. in control engineering, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran ali karimpour assistant professor, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran naser pariz associate professor, electrical engineering dept., faculty of engineering, ferdowsi university, mashhad, iran mohammad taghi shakeri associate professor, community medicine and public health dept., mashhad university of medical science, mashhad, iran

introduction: in this paper, a novel complexity measure is proposed to detect dynamical changes in nonlinear systems using ordinal pattern analysis of time series data taken from the system. epilepsy is considered as a dynamical change in nonlinear and complex brain system. the ability of the proposed measure for characterizing the normal and epileptic eeg signals when the signal is short or is...

Journal: :journal of tethys 0

rise in temperature occurred after soil temperature was measured in different time series. in this article, ldf (logarithmic derivative filter) innovative method is applied to detect anomalies. this method tests soil temperature time series for 12 earthquakes in iran with magnitudes of either five or greater than five. results from this method were collected. based on the results of ldf method ...

Journal: :iranian journal of basic medical sciences 0
nahid karimian fathi medical genetic department medical faculty, tabriz university of medical sciences, tabriz, iran mahmood shekari khaniani medical genetic department medical faculty, tabriz university of medical sciences, tabriz, iran vahid montazeri general surgery department medical faculty, tabriz university of medical sciences, tabriz, iran sima mansoori derakhshan medical genetic department medical faculty, tabriz university of medical sciences, tabriz, iran

objective(s): breast cancer is the most common cancer in women. every year, one million new cases are reported worldwide, representing 18% of the total number of cancer in women. hereditary brca1 and brca2 mutations account for about 60% of inherited breast cancer and are the only known causes of hereditary breast cancer syndrome. the aim of this study was to determine the frequency of brca2 (e...

Journal: :iranian journal of public health 0
p ghandil dd farhud s zeinali a ghadiri

hemophilia b is factor ix deficiency and is inherited as x-linked recessive disorder. the subject of carrier detection in hemophilias has received new impetus in the last several years. analysis of factor ix gene polymorphisms is considered the best approach for prenatal diagnosis and hemophilia b carrier detection, if the identification of the gene mutation is possible. allele frequencies of t...

Journal: :journal of computer and robotics 0
sanaz taleghani department of computer & it, qazvin azad university, qazvin, iran siavash aslani mechatronics research laboratory(mrl), qazvin, iran saeed shiry computer engineering department, amirkabir university, tehran, iran

in many autonomous mobile applications, robots must be capable of analyzing motion of moving objects in their environment. duringmovement of robot the quality of images is affected by quakes of camera which cause high errors in image processing outputs. in thispaper, we propose a novel method to effectively overcome this problem using neural networks and kalman filtering theory. thistechnique u...

Journal: :desert 2006
a. kelarestaghi h. ahmadi m. jafari

land use change may influence many natural phenomena and ecological processes, including runoff, soil erosion, sedimentation and soil conditions. decreasing of forest area in the north of iran is one of the critical problems in recent years. the aims of this study are to detect land use changes between 1967 to 2002 using satellite images of land sat 7 etm+ (2002), aerial photos and digital topo...

Journal: :international journal of environmental research 2012
j.o. odindi p. mhangara

given the critical role played by urban green spaces and the emergence of remote sensing as avaluable natural resource management tool, this study sought to identify trends in green spaces within thecontext of south africa’s transition period (1990 - 2000). using the city of port elizabeth as a case study, threesets of landsat - 5 thematic mapper images (1990, 1995 and 2000) were geo-processed,...

Journal: :journal of agricultural science and technology 2012
s. kiani a. jafari

development of an autonomous weeding machine requires a vision system capable of detecting and locating the position of the crop. it is important for the vision system to be able to recognize the accurate position of the crop stem to be protected during weeding. several shape features of corn plants and common weed species in the location were extracted by means of morphological operations. eff...

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