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Mustafa ?ahin,Yuksel O?uz,Fuat Buyuktumturk 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.4
In this study, artificial neural networks were used to determine the intensity of brightness in interior spaces. The illumination elements to illuminate indoor spaces were considered, not individually, but as a system. So, during the planned maintenance periods of an illumination system, after its design and installation, simple brightness level measurements must be taken. For a threedimensional evaluation of the brightness level in indoor spaces in a speedy and accurate manner, the obtained brightness level measurement results and artificial neural network model were used. Upon estimation of the most suitable brightness level for indoor spaces by using the artificial neutral network model, the energy demands required by the illumination elements decreased. Consequently, in this study, with estimations of brightness levels, the extent to which the artificial neutral networks become successful was observed and more correct results have been obtained in terms of both economy and usage.
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Mohamed Mustafa Ahmed Younus: The Impact of the Environment on Child Language Acquisition
( Mohamed Mustafa Ahmed Younus ) 한국외국어대학교 중동연구소 2014 중동연구 Vol.33 No.1
Interested in the subject to study the impact of the environment surrounding the child in language acquisition, where it displays a summary of some of the environmental factors that speed up the acquisition of child language or slow down in it, to confirm that a child - any child - is able to acquire any language of humanity, only that the child live in a society linguist speaks this language, also confirmed that the mother had a significant impact very into it, especially in the early stages of a child, this may be impact positively or negatively on the role of the mother may be a mother too in dealing with her child, which adversely affect the acquisition of her language may be spoiled his impact and one in both of which, it is slow to gain a child`s language, but the ideal mother is doing its part with the child, where mating between the happiness of the child and the educated. The research aims to find the difference between language acquisition and learning. Language acquisition: a spontaneous process is carried out by the child inadvertently or choose, and be in the context of an informal language acquisition and their practice. The learning: it is a process in which the child deliberately optional collection of language in formal dress learns the rules of the language was intended for and awareness of, and directly. The research aims to find out the factors that help the child to language acquisition and development, and the role of environmental factors in the acquisition of language; the child and that he was prepared to acquire any language and has adequate tools to complete this process, as it has the inherent ability to acquire language, and has centers cerebral that qualify for it , and members of pronunciation which actually translate this ability, but it can never, to acquire the language that has the tools in advance, and is qualified to acquire, unless you lived in the linguistic environment enabled him to this acquisition. The research found some of the results of the most important: to prove that there is a difference between language acquisition and learning, and that there are factors that help the child to acquire language and its growth, the most important of the surrounding environment where the children have a significant impact on it.
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Determining and Managing Fetal Radiation Dose from Diagnostic Radiology Procedures in Turkey
Mustafa Ozbayrak,Iffet Cavdar,Mehmet Seven,Lebriz Uslu,Nami Yeyin,Handan Tanyildizi,Mohammad Abuqbeitah,A. Serdar Acikgoz,Abdullah Tuten,Mustafa Demir 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.6
We intended to calculate approximate fetal doses in pregnant women who underwent diagnostic radiology procedures and to evaluate the safety of their pregnancies. We contacted hospitals in different cities in Turkey where requests for fetal dose calculation are usually sent. Fetal radiation exposure was calculated for 304 cases in 218 pregnant women with gestational ages ranging from 5 days to 19 weeks, 2 days. FetDose software (ver. 4.0) was used in fetal dose calculations for radiographic and computed tomography (CT) procedures. The body was divided into three zones according to distance from the fetus. The first zone consisted of the head area, the lower extremities below the knee, and the upper extremities; the second consisted of the cervicothoracic region and upper thighs; and the third consisted of the abdominopelvic area. Fetal doses from radiologic procedures between zones were compared using the Kruskal-Wallis test and a Bonferroni-corrected Mann-Whitney U-test. The average fetal doses from radiography and CT in the first zone were 0.05 ± 0.01 mGy and 0.81 ± 0.04 mGy, respectively; 0.21 ± 0.05 mGy and 1.77 ± 0.22 mGy, respectively, in the second zone; and 6.42 ± 0.82 mGy and 22.94 ± 1.28 mGy, respectively, in the third zone (p < 0.001). Our results showed that fetal radiation exposures in our group of pregnant women did not reach the level (50 mGy) that is known to increase risk for congenital anomalies. Fetal radiation exposure in the diagnostic radiology procedures in our study did not reach risk levels that might have indicated abortion.
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Mustafa Haksal,Nuri Okkabaz,Ali Emre Atici,Osman Civil,Yasar Ozdenkaya,Ayhan Erdemir,Nihat Aksakal,Mustafa Oncel 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.92 No.1
Purpose: The current study aims to analyze the risk factors for the failure of ileostomy reversal after laparoscopic low anterior resection for rectal cancer. Methods: All patients who underwent a laparoscopic low anterior resection for rectal cancer with a diverting ileostomy between 2007 and 2014 were abstracted. The patients who underwent and did not undergo a diverting ileostomy procedure were compared regarding patient, tumor, treatment related parameters, and survival. Results: Among 160 (103 males [64.4%], mean [± standard deviation] age was 58.1 ± 11.9 years) patients, stoma reversal was achieved in 136 cases (85%). Anastomotic stricture (n = 13, 52.4%) was the most common reason for stoma reversal. These were the risk factors for the failure of stoma reversal: Male sex (P = 0.035), having complications (P = 0.01), particularly an anastomotic leak (P < 0.001), or surgical site infection (P = 0.019) especially evisceration (P = 0.011), requirement for reoperation (P = 0.003) and longer hospital stay (P = 0.004). Multivariate analysis revealed that male sex (odds ratio [OR], 7.82; P = 0.022) and additional organ resection (OR, 6.71; P = 0.027) were the risk factors. Five-year survival rates were similar (P = 0.143). Conclusion: Fifteen percent of patients cannot receive a stoma reversal after laparoscopic low anterior resection for rectal cancer. Anastomotic stricture is the most common reason for the failure of stoma takedown. Having complications, particularly an anastomotic leak and the necessity of reoperation, limits the stoma closure rate. Male sex and additional organ resection are the risk factors for the failure in multivariate analyses. These patients require a longer hospitalization period, but have similar survival rates as those who receive stoma closure procedure.
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Effect of demagnetization faults on line start AF‑PMSM performance
Mustafa Eker,Mustafa Ozsoy 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.6
This study is concerned with irreversible demagnetization faults in axial fl ux permanent magnet synchronous motors (AFPMSM). Line start capability was provided to the AF-PMSM by making changes in its traditional rotor architecture. With this architecture, the motor operates as an asynchronous motor in the transient state and as a synchronous motor in the steady state. In this study, the impacts of an irreversible demagnetization fault on motor performance, which occurs in motors due to various reasons, is investigated. The four poles of the used AF-PMSM have 5.5 kW of shaft power. Each pole is comprised of fi ve identical magnets. Diff erent rates (20%, 40%, and 60%) of demagnetization failure were created in a single pole. The data acquired from the faulty motors were compared to data from a healthy motor. The results indicate that irreversible demagnetization faults have an adverse impact on motor performance. It was observed that the experimentally created demagnetization faults increase the current drawn by the motor. In addition, they cause a decrease in both the power factor and effi ciency. However, the faults did not have an adverse impact on the starting capability of the motor. The unique aspect of the present study is that it is the fi rst time the impacts of demagnetization faults on the performance of line start AF-PMSMs have been examined.
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Mustafa Kose,Mustafa Eser,Kur?at Kartal,Mehmet Fatih Bozkurt 대한기생충학열대의학회 2015 The Korean Journal of Parasitology Vol.53 No.5
The aim of this study was to determine the presence and prevalence of larval stages of Dicrocoelium dendriticum and Brachylaima sp. in the first intermediate host, a species of land snail, Helix aspersa, in Turkey. A total of 211 snails were collected in April-May 2014 from pastures in Mersin District. Larval stages of D. dendriticum were identified under a light microscope. Hepatopancreas from naturally infected H. aspersa snails were examined histologically. The prevalence of larval stages of D. dendriticum and Brachylaima sp. in H. aspersa snails was found to be 2.4% and 1.9%, respectively, in Mersin, Turkey. Cercariae were not matured in sporocysts at the beginning of April; however, it was observed that cercariae matured and started to leave sporocysts by early-May. Thus, it was concluded that H. aspersa acts as an intermediate host to D. dendriticumin and Brachylaima sp. in Mersin, Turkey. A digenean trematode Brachylaima sp. was seen for the first time in Turkey.
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Technical efficiency comparison of container ports in Asian and Middle East region using DEA
Mustafa Faluk Shair,Khan Rafi Ullah,Mustafa Tariq 한국해운물류학회 2021 The Asian journal of shipping and Logistics Vol.37 No.1
With the instigation of China Pakistan Economic Corridor (CPEC), the strategic significance of South Asian and Middle Eastern ports have been vitalized. The aim of this study is to compare the technical efficiency of less explored South Asian & Middle Eastern ports with the East Asian ports and determine ways for their efficiency enhancement and management optimization. The cross sectional data for the year 2018 was collected for 15 container ports each of South & Middle Eastern and East Asian region and arranged into input and output variables. The data was analyzed through the DEA-CCR and DEA-BCC model. Results indicate that only one port each from UAE and India among the Middle & South Asian ports were found efficient on CCR model with the number of efficient ports on BCC model increased by 47%. While, in East Asian region two ports of China and one of South Korea were found efficient on CCR model, with 33% increase on BCC model. Lianyungang port was the most prominent among the efficient ports being highly benchmarked. The average efficiency for East Asian region (CCR: 0.524, BCC: 0.901) remained similar to that of South Asian and Middle East Region (CCR: 0.517, BCC: 0.906).
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