214 research outputs found

    Urban water demand forecasting based on climatic change scenarios

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    Water resources projects, are designed to serve for many years to meet water needs. Therefore, the future water demand forecasting is of great importance for planning and management of water resources. In this study, a multi linear regression model is built to forecast urban water consumptions based a series of variables, namely the population served, monthly mean temperature and monthly total precipitation. Using the extended values of the variables up to the year 2100 based on climatic change scenarios, urban water demands are forecasted up to 2100

    Determination of the Considerations of the Farmers about Irrigation Organizations by Factor Analysis

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    In this study, the considerations of the farmers who were affiliated to the organizations undertakingthe irrigation administration in Edirne, Kırklareli, Tekirdağ and Çanakkale provinces about irrigationorganizations were analyzed. Within the scope of the study, surveys were conducted in 70 irrigation cooperatives,67 municipality and legal entities, 7 irrigation unions and 1 DSI irrigation organization. Total of 567, 113, 227and 7 surveys were conducted in the irrigation facilities administrated by irrigation cooperatives, irrigationunions, municipality and legal entities and DSI, respectively. Total of 301 surveys in 74 villages of 9 districts inEdirne, 168 surveys in 43 villages of 5 districts in Tekirdağ, 156 surveys in 36 villages of 4 districts in Kırklareliand 289 surveys in 69 villages of 11 districts in Çanakkale were conducted. The conclusions of the farmers wereevaluated by using five point likert scale. It was determined that the irrigation organizations did not notice thetraining of the farmers, did not include these trainings in their working schedules and similarly, they did notconduct studies aimed at the conscious and balanced use of the agricultural inputs. Factor analysis was used forthe evaluation of the considerations of the farmers about irrigation organizations. KMO and Barlett test statisticswas used in order to examine the convenience of the considerations to factor analysis and KMO value was foundas 0.891. According to factor analysis results, 13 variables were gathered in three factor groups named as“Administration”, “Ownership and Service” and “Consciousness Raising”

    Measurement of Service Quality at Tax Chambers by SERVQUAL Analysis

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    The aim of the research is to come out the difference between expected service and perceived service at Tax Chamber that taxpayers get service. SERVQUAL Scale was conducted to 90 people who get service from X Tax Chambers between April-May 2016. As a result of the SERVQUAL analysis, the research reveals that the taxpayers of the X Tax Chambers are not satisfied with the service quality and the most difference between expected service quality and perceived service quality is accessibility dimension. The research indicates no significant differences between expactations for service provided and demographics features. However the research shows significant differences between service perceptions and demographics features

    The frequency of Duchenne muscular dystrophy/Becker muscular dystrophy and Pompe disease in children with isolated transaminase elevation: results from the observational VICTORIA study

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    IntroductionElevated transaminases and/or creatine phosphokinase can indicate underlying muscle disease. Therefore, this study aims to determine the frequency of Duchenne muscular dystrophy/Becker muscular dystrophy (DMD/BMD) in male children and Pompe disease (PD) in male and female children with isolated hypertransaminasemia.MethodsThis multi-center, prospective study enrolled patients aged 3–216 months with serum alanine transaminase (ALT) and/or aspartate transaminase (AST) levels >2× the upper limit of normal (ULN) for ≥3 months. Patients with a known history of liver or muscle disease or physical examination findings suggestive of liver disease were excluded. Patients were screened for creatinine phosphokinase (CPK) levels, and molecular genetic tests for DMD/BMD in male patients and enzyme analysis for PD in male and female patients with elevated CPK levels were performed. Genetic analyses confirmed PD. Demographic, clinical, and laboratory characteristics of the patients were analyzed.ResultsOverall, 589 patients [66.8% male, mean age of 63.4 months (standard deviation: 60.5)] were included. In total, 251 patients (188 male and 63 female) had CPK levels above the ULN. Of the patients assessed, 47% (85/182) of male patients were diagnosed with DMD/BMD and 1% (3/228) of male and female patients were diagnosed with PD. The median ALT, AST, and CPK levels were statistically significantly higher, and the questioned neurological symptoms and previously unnoticed examination findings were more common in DMD/BMD patients than those without DMD/BMD or PD (p < 0.001).DiscussionQuestioning neurological symptoms, conducting a complete physical examination, and testing for CPK levels in patients with isolated hypertransaminasemia will prevent costly and time-consuming investigations for liver diseases and will lead to the diagnosis of occult neuromuscular diseases. Trial RegistrationClinicaltrials.gov NCT04120168

    Modeling Of Control Systems And Pid Controller

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    Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2006Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2006Bu çalışmada, uygulamada kontrol sistemlerinin modellenmesi için kullanılan farklı yöntemler ve PID kontrolörü ile ilgili konular incelenmiştir. Çalışmanın “Kontrol Sistemlerinin Modellenmesi” isimli bölümünde, kontrol sistemlerinin matematiksel olarak modellenmesinde kullanılan yöntemler örnekleriyle tartışılmış, bununla birlikte durağan ve dinamik sistem modelleri, basamak yanıtı yöntemleri, moment yöntemleri ve frekans yanıtı yöntemleri örnekleriyle ele alınmıştır. Bölüm sonunda ise anlatılan yöntemlerin kıyaslaması yer almıştır. Çalışmanın “PID Kontrolörü” isimli bölümünde standart geribesleme prensibi ve PID kontrol algoritması, PID algoritmasının farklı gerçekleştirimleri ele alınmış, integral yükselmesi ve önlenmesi konuları örnekleriyle incelenmiştir. Bölüm sonunda ise PID kontrolörünün ayrık gerçekleştirimi ve farklı çalışma yönleri konuları yer almıştır. “Sonuçlar ve Tartışma” bölümünde ise PID kontrolün hangi durumlarda kullanıldığı ve yeterli olduğu, daha karmaşık kontrolün ne zaman gerekli olduğu incelenmiştir.In this work different modeling methods used to model control systems and issues about PID controller are studied. In the part which is titled as “Modeling of Control Systems” the mathematical modeling methods for control systems are handled with examples. Then, static and dynamical models, step response methods, moment methods and frequency response methods are presented. At the end of the section, the modeling methods which are handled are compared. In the part which is titled as “PID Controller”, different issues about PID controller are discussed. The standard feedback and PID algorithms, modifications of PID algorithms, integrator windup and prevention methods are presented with examples. Discrete implementation of PID controllers and operational aspects are also presented in this part. In the part which is titled as “Consequences and Discussions”, situations where using PID controllers are convenient and environments where much more complicated control is needed are presented at this part.Yüksek LisansM.Sc

    Knowledge Management of Human Resource

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    “İnsan kaynaklarında bilgi yönetimi” ni konu alan bu çalışmada insan kaynaklarından elde edilen açık ve örtülü bilgiler sınıflandırılması ile bilgi yönetim süreci oluşturulmuş ve işletmeye sağlayacağı katkıların incelenmesi amaçlanmıştır. Çalışma üç bölümden oluşmaktadır. Çalışmanın birinci bölümünde bilgi yönetimi kavramı ve kapsamı ele alınmıştır. Çalışmanın ikinci bölümünde, insan kaynaklarında bilgi yönetimi kavramı ortaya konmuştur. Çalışmanın üçüncü bölümünde ise insan kaynakları bilgi yönetimi modeli önerisi sunulmuştur.The goal of thıs study,Knowledge Management of Human Resources is to classify unobstructed and obscure knowledge to provide asistance to the study The study consists of three chapters. In the first chapter of the study knowledge management scope and concept were taken into consideration. In the second part of the study the concept of knowledge management in human resources is brought forth İn the third chapter of the study a suggestion was submitted about the style of knowledge management of human resource

    Retrospective Evaluation Of Intoxication Cases Who Have Attended To Ankara 112 Provincial Ambulance Services In 2013

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    Bu çalışmada, Ankara İli 112 Komuta Kontrol Merkezi ne 2013 yılında zehirlenme nedeni ile başvuran vakaların formları geriye dönük olarak incelenmiş ve olguların epidemiyolojik ve demografik özellikleri yaş, cinsiyet, zehirlenme, çağrı nedeni, zehirlenme etkeni, vakanın sonucu, zehirlenmenin bölgesel durumu ve başvuru zamanı (mevsim, ay, gün, saat) açısından değerlendirilmiştir. Araştırmada 01.01.2013 ve 31.12.2013 tarihleri arasında Ankara 112 Komuta Kontrol Merkezi ne başvuran ICD10 koduna göre 1889 zehirlenme olgu formu incelenmiştir. Bu formlardan hastaneler arası nakil , görev iptali , tıbbi tetkik için nakil , olay yeri bekleme , başka araçla nakil , nakil reddi , eve nakil çıkış kodlu aynı olgunun birden çok kodla incelenmesini önlemek için dışarıda bırakılmış ve toplam 1349 olgu formu araştırmaya dahil edilerek tamamı incelenmiştir. Ankara İl Ambulans Servisi Başhekimliği veri hazırlama ve istatistik arşivinden elde edilen vaka çalışma ve kayıt formlarındaki veriler SPSS 15.00 programına kaydedilmiştir. Değerlendirmeye alınan olguların 672 si (%49,9) kadın, %64,3 ü 20 64 yaş grubundadır. Olguların %5,6 sı 0 2 yaş, %9,4 ü 3 10 yaş, %25,0 ı 11 19 yaş, %5,7 si 65 yaş üzeri yaş grubundadır. Vakaların 413 ünü (%30,6) ilaç ve opioid zehirlenmeleri, 238 ini (%17,6) kimyasal, koroziv ve pestisidler , 232 sini (%17,2) CO ve diğer gazlar , 165 ini (%12,2) besin , 161 ini (%11,9) alkol ve madde , 140 ını (%10,4) hayvan ısırık ve sokmaları zehirlenmelerinin oluşturduğu saptanmıştır. Erkeklerde (%43,8) ve kadınlarda (%56,2) en fazla görülen zehirlenme türü ilaç ve opioid kullanımına bağlıdır. Zehirlenmeler en fazla %12,3 ile Mayıs ayında, % 19,0 ile Cuma gününde, % 37,2 ile 12.00 17.59 saat diliminde ve %27,7 ile İlkbahar mevsiminde meydana gelmiştir. Olguların % 52,9 unun medikal, % 21,7 sinin kaza sonucu, % 6,4 ünün intihar ve intihar girişimi amaçlı zehirlendiği tespit edilmiştir. Araştırmada incelenen olguların %88,4 ü kentsel, %11,6 sı kırsal bölgede gerçekleşmiştir. Zehirlenmeler tüm acil başvurular içinde nispeten düşük sıklıkta görülmekle birlikte, neden olabilecekleri sağlık sonuçları açısından önemlidir. Acil sağlık hizmetleri kapsamında zehirlenme etkenleri dağılımının bilinmesi bundan sonraki hizmet düzenlemeleri ve eğitim gereksiniminin saptanması konularında fayda sağlayacaktır.In the present study, the forms of the cases that referred to the Ankara 112 Provincial Ambulance Services in 2013 with intoxication were retrospectively reviewed and the cases were evaluated with respect to epidemiological and demographical characteristics, age, gender, intoxication, reason of call, intoxication agent, case outcome, regional condition of the intoxication and time of admittance (season, month, day, hour). Case forms of a total number of 1889 intoxication cases as per the ICD10 code that referred to Ankara 112 Provincial Ambulance Services between 01 Jan 2013 and 31 Dec 2013 were reviewed. In order to prevent evaluation of the same cases under the discharge codes transfer between hospitals , mission aborted , transfer for medical analyses , crime scene awaiting , transfer with another vehicle , transfer refusal and home transfer for more than once, these cases were excluded and a total number of 1349 cases were included and evaluated in the study. The data on the case study and registration forms obtained from the Ankara Provincial Ambulance Services Head Physician s Office were transferred to the SPSS 15.00 program. Out of the cases reviewed, 672 were women (49.9%) and 64.3% were in 20-64 years age interval. 5.6% of the cases were in 0-2 years, 9.4% were in 3-10 years, 25.0% were in 11-19 years age intervals and 5.7% were above 65 years. It was noted that 413 cases (30.6%) represented with drug and opioid intoxication, 238 (17.6%) with chemical, corrosive and pesticide , 232 (17.2%) represented with CO and other gases , 165 (12.2%) represented with food , 161 (11.9%) represented with alcohol and substance and 140 (10.4%) represented with animal bite and stinging intoxication. The most common type of intoxication in men (43.8%) and women (56.2%) were due to drug and opioid use. The intoxications most frequently occurred within May with 12.3%, on Friday with 19.0%, between 12.00-17.59 time zone with 37.2% and in spring season with 27.7%. It was observed that 52.9% of the cases were intoxicated with medical reasons, 21.7% upon an accident and 6.4% with suicide and suicide attempt . Of the cases reviewed in the present study, 88.4% occurred in the urban and 11.6% occurred in the rural areas. Although intoxications are relatively rare compared to the other reasons for admittance to emergency room, they are important with respect to the health consequences they may cause. Knowing the distribution of intoxication agents within the scope of emergency health care will be helpful to set up further health care regulations and determine the training needs
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