Hızlı Yiyecek İçecek İşletmesi Servis Sisteminin Bekleme Hattı Modeliyle Analizine Yönelik Bir Uygulama

Bekleme hattı modelinin hızlı yiyecek içecek işletmelerinde uygulanmasının konu edildiği çalışmada amaç; hızlı yiyecek içecek işletmesi servis sistemini, bekleme hattı modeliyle analiz ederek bekleme problemini belirlemek ve belirlenen problemlere yönelik senaryolar geliştirmektir. Araştırmada veri toplama tekniği olarak nitel araştırma yöntemlerinden görüşme ve doküman analizi teknikleri kullanılmıştır. Veriler WİNQSB paket programıyla analiz edilmiştir. Analiz sonucu işletme servis sisteminin birinci aşamasında servis biriminin boş kalma problemi ve servis sisteminin ikinci aşamasında müşteri bekleme probleminin olduğu belirlenmiştir. Probleme yönelik senaryolar geliştirilerek aynı yöntemle analiz edilmiştir. Geliştirilen senaryolardan, servis ve bekleme maliyetleri açısından uygun olan Senaryo 1, işletmeye önerilmiştir

Determination of the optimal warranty policy and period from the manufacturer's/seller's perspective

This study aims to determine the most appropriate warranty period and policy with the lowest warranty cost from the manufacturer/seller point of view. The warranty policy to be put forward and the warranty period to be offered under this policy should ensure customer satisfaction while at the same time causing a minimum cost to the manufacturer/seller. For this reason, the optimum warranty period within the scope of Free-Replacement Warranty (FRW) policy, Pro-Rata Warranty (PRW) policy, and Combined FRW/PRW policy which was the combination of those two warranty policies were tried to be determined. In the study which was done to determine the most appropriate warranty period, economic benefit and the benefit function obtained from warranty cost and dissatisfaction cost functions were used. While obtaining necessary formulas, exponential distribution, which was widely used in life tests as density function and gamma and inverse-gamma functions as prior distribution of the exponential distribution were used. To demonstrate the applicability and flexibility of the model, some typical sales models and numerical values for exponential lifetime distribution were used, and an algorithm was created to find the optimal solution. When all of the results were analyzed it was seen that Combined FRW/PRW policy was the most appropriate warranty cost as a result of testing the models obtained and it was also found that the warranty cost was almost 3% of the sale price. Within the frame of these obtained results, Combined FRW/PRW policy was suggested for the warranty service to be served with the product to the manufacturer/seller. If the warranty period number of revolutions were chosen almost g1=0.054., g2=0.120. the warranty cost will be in the minimum level and it will be almost 3% of the product sale price. The validity and accuracy of the proposed strategy was verified by a case study with a numerical sample providing a scientific basis.WOS:0006656588000012-s2.0-8510863783

Effect of organizational levels on individual service quality in health service: A research on doctors

WOS: 000322928500002Individual service quality states the service quality of employees as distinct from the quality that the customers perceived. While organization to have an open or closed system is not important in the perceived quality, the organizational system gains importance in the sense of individual service quality. In the health establishments that have an open system, the service quality shows an alteration in parallel with the organizational levels. Therefore, this study intended to enhancing the service quality is made by not with the quality that the customers perceived but analyzing the organization level perception of organization employees with quality. The aim of this study is presenting the effect of organizational levels, consisting of organizational stress, organizational motivation and organizational climate, on individual service quality. Depending upon this aim, a research was conducted intended to 50 doctors, who run health service in X Hospital. The sample size was limited with only one health establishment for not breaking the homogeneous structure of organizational levels. Individual service quality was associated with organizational motivation and organizational stress; and three main and six sub-hypotheses and two variation hypothesis were developed in the research. In the result of correlation analysis, regression analysis and one-way test, a meaningful relation was found between all the organizational levels and the individual service quality. According to the obtained findings, among the organizational levels, the "Organizational Climate" is the factor that effects most the service quality

Statistical Process Control Methods For Determining Defects of Denim Washing Process: A Textile Case From Turkey

The denim garments, which are made with many different sewing patterns, are given the final appearance by applying industrial washing processes and these are turned into high value-added fashion products. In this study, denim fabric control performed in a textile company, washing department after weaving for one month was investigated and as a result, washing defects are examined by using statistical methods. Pareto analysis, cause and effect diagram, and P control graphs, which are statistical process control methods, were used to classify the defects seen as a result of quality control. In Pareto analysis, chemical repair (20, 52 %), blue floor (19, 86 %), chemical intensive (19, 56 %), light floor (10, 71 %), deep floor (7, 95%) are in first five places among 53 defects and account for 78, 6 % of total number of defects. Of the 53 defects encountered during the washing process, it is found that only five of these defects could be prevented during the washing process, thus reducing the total waste by about 80%. In cause and effect diagram, washing defects are divided into categories as chemical, foreground, intensity, repair, tinctorial and processual and sub-dimensions as causes are determined. In the Laney P control chart, all processes are determined under control.WOS:0006102424000062-s2.0-8509586795

İŞ TATMİNİNİ ETKİLEYEN FAKTÖRLERİN KRİZ ORTAMINDAKİ ETKİSİNİN LOJİSTİK REGRESYON ANALİZİ İLE BELİRLENMESİ

İş tatmin düzeyi, müşteri memnuniyetine ve hizmetin kalitesine dolayısıyla örgütün misyon ve vizyonunu gerçekleştirmesinde doğrudan etki etmektedir. Bilginin ön plana çıktığı günümüzde, tüm çalışanların aynı amaca yönlendirilmeleri sonucu iş tatmininin sağlanması zorunluluk halini almıştır. İş tatmininin sağlanması ise, onu etkileyen faktörlerin bilinmesi ve kriz ortamındaki etkisinin belirlenmesi, örgütün amaca ulaşmasına önemli katkı sağlayacaktır. Bu çalışmada, iş tatminini etkileyen faktörlerin kriz ortamında etkisini belirleyebilmek için, hem sürekli hem de kesikli değişkenlerden oluşan bağımsız değişkenlerin, ikili sonuç içeren bağımlı değişkene etkilerini belirleyebilen lojistik regresyon analizi kullanılmıştır. Analiz sonucunda, iş tatminini etkilediği düşünülen faktörlerin çoğunluğunun, kriz ortamında etkisini kaybettiği belirlenmiştir

Kesim Hattında Süreç İyileştirme ve Etkin Tasarruf: Ağaç İşleri Atölyesine Yönelik Bir Uygulama

Bu çalışmanın amacı, Türkiye de geleneksel olarak faaliyet gerçekleştiren ağaç işleri üretim tesislerinin kesim işlemlerine yönelik bir süreç iyileştirmesi uygulaması yapmak ve işletmeye kesim hattına ham ürünün daha kısa sürede gelmesini ve hattan daha kısa sürede çıkmasını sağlayacak senaryolar sunarak mali açıdan tasarruf etmesini temin etmektir. Bu amaca yönelik olarak, yalın üretime geçiş çalışmaları süren bir ağaç işleri atölyesinin kesim hattında süreç analizi gerçekleştirilmiştir. Mevcut durum analizinde, kesim hattında kesim makinelerinin optimum yerleşmediği ve hattın gereğinden fazla uzun olmasından kaynaklanan israfın varlığı anlaşılmıştır. Tüm kesim çalışanlarının daha uyumlu, işletmenin daha fazla üretimi, işlenmiş ürünün daha basit stoklanması ve işletmenin yalın üretime daha kolay adapte olması için; kesim hattının bir bölümünde yerleştirilmiş olan daire kesim makinesinin kesim hattındaki yerinin değişmesi ve kesim hattının 1/3 oranında kısalması durumunda işletmeye %42.6 oranında bir tasarruf sağlayacağı saptanmıştır. The aim of this study is to make process improvement application directed to cutting processes of woodworking production plants which traditionally performs an activity in Turkey as well as provide financial saving by presenting alternatives that provide early entrance of core product to the enterprise and delivery of it from the line in shorter time. Intended for this aim, process analysis was made on cutting line of woodworking work shop where commence simple production practices continued. In the analysis of present situation, it was found that the presence of waste originated from the location of cutting machines on cutting line was not optimum and the line was longer than it had to be. In order to provide all cutting workers more compatible, more production of enterprise, simple stocking of manufactured goods and easier adaptation of enterprise to simple production, it was obtained that by changing the place of circular cutting machine which was placed in a part of cutting line and by shortening cutting line in the proportion of 1/3, 42.6% of saving would be provided to enterprise

Comparison of keypads and touch-screen mobile phones/devices as potential risk for microbial contamination

Conclusions: We found no significant difference between TMP/Ds and KMPs in terms of microbial contamination, but TMP/Ds harboured more colonies and total microbial counts increased with screen size

The Frequency of Fibromyalgia Syndrome in Patients with Polycystic Ovary Syndrome

Objectives: Polycystic ovary syndrome [PCOS] is one of the most common reproductive abnormalities and is characterized by hyperandrogenemia. We aimed to assess the frequency of fibromyalgia syndrome [FMS] and psychological distress in patients with PCOS. Methods: Forty patients with PCOS and 39 age-matched healthy controls were included in the study as PCOS and healthy normal control [HNC] groups. The diagnosis of FMS was based on the American College of Rheumatology criteria of 1990, and the diagnosis of PCOS was based on the Rotterdam criteria of 2003. All participants completed the questionnaires to gather information including demographic features, FMS-related symptoms, and the psychological status. Patients with PCOS were divided into two subgroups according to coexistence of FMS [PCOS only and PCOS + FMS]. Results: The mean age of PCOS and HNC groups were 23.97 +/- 6.01 and 26.15 +/- 5.45 years, respectively [P > 0.05]. The frequency of FMS in PCOS and HNC groups was 32.5 percent and 7.7 percent, respectively [P < 0.05]. Except constipation and paresthesia, the presence of FMS-related symptoms in the PCOS + FMS subgroup were higher than those of the PCOS only subgroup and HNC group. There were no differences in depression scores between the PCOS only and PCOS + FMS subgroups, but there were differences in anxiety scores. Conclusion: The frequency of FMS was found to be increased in PCOS. Anxiety risk was also found to be increased, particularly in patients with PCOS and concomitant FMS