Towards a unified design-by-analysis solution to pressure vessel nozzle-shell junctions under combined loading

The finite element method is the most commonly used modern approach when solving complex practical cylinder-cylinder junctions in pressure vessels. This is used when the geometrical arrangement is out with the permitted scope of the design-by-rule approaches or when detailed stress information is required as in a fatigue assessment. High-stress concentrations occur on the crotch corner for cylinder-cylinder joints, and it is possible to reach solutions for this problem by using both theoretical and numerical solutions. However, those approaches do not fully overlap nor have the same underlying assumptions. As such, an innovative high-fidelity finite element model has been developed to provide a holistic unified approach which can tackle a wide range of problems. In this study, various detailed nozzle design challenges were investigated including single and multiple nozzle combinations, nozzle-cylinder systems with different size ratios, oblique nozzles combinations, fillet weld applications, pad reinforcements, stress linearization, external loading cases, limit loads, and cyclic loads. In addition, elastic, elastic - perfectly plastic, full plastic and fracture analysis were performed. Stress intensity factors are obtained with the results of finite element analysis for various internal pressure and external loading conditions, and an attachment parameter and design curves are proposed. Finally, the Multiple Plastic Slope method, which is an alternative to TI and TES methods, which can be applied more practically and can make a more conservative plastic limit load estimation, has been proposed.The finite element method is the most commonly used modern approach when solving complex practical cylinder-cylinder junctions in pressure vessels. This is used when the geometrical arrangement is out with the permitted scope of the design-by-rule approaches or when detailed stress information is required as in a fatigue assessment. High-stress concentrations occur on the crotch corner for cylinder-cylinder joints, and it is possible to reach solutions for this problem by using both theoretical and numerical solutions. However, those approaches do not fully overlap nor have the same underlying assumptions. As such, an innovative high-fidelity finite element model has been developed to provide a holistic unified approach which can tackle a wide range of problems. In this study, various detailed nozzle design challenges were investigated including single and multiple nozzle combinations, nozzle-cylinder systems with different size ratios, oblique nozzles combinations, fillet weld applications, pad reinforcements, stress linearization, external loading cases, limit loads, and cyclic loads. In addition, elastic, elastic - perfectly plastic, full plastic and fracture analysis were performed. Stress intensity factors are obtained with the results of finite element analysis for various internal pressure and external loading conditions, and an attachment parameter and design curves are proposed. Finally, the Multiple Plastic Slope method, which is an alternative to TI and TES methods, which can be applied more practically and can make a more conservative plastic limit load estimation, has been proposed

Fetus papyraceous ın a twın pregnancy: a case report without any maternal and fetal complications.

Fetus papyraceous is defined as a compressed fetus, the mummified, parchment-like remains of a dead twin that is retained in-utero after intrauterine death in the second trimester. We report a case of fetus papyraceous (FP) in a diamniotic and dichorionic pregnancy with no maternal and fetal complications during pregnancy or the post-partum period

Fetus papyraceous ın a twın pregnancy: a case report without any maternal and fetal complications.

Fetus papyraceous is defined as a compressed fetus, the mummified, parchment-like remains of a dead twin that is retained in-utero after intrauterine death in the second trimester. We report a case of fetus papyraceous (FP) in a diamniotic and dichorionic pregnancy with no maternal and fetal complications during pregnancy or the post-partum period

Isolated torsion of the fallopıan tube in a postmenopausal woman; a rare entity

Isolated torsion of the fallopian tube is an uncommon cause of acute lower abdominal pain. The lack of pathognomonic symptoms, clinical findings on physical examination, and specific imaging or laboratory characteristics makes this entity difficult to diagnose preoperatively, which can cause surgical intervention to be postponed. We report a case of isolated torsion of the right fallopian tube in a 58-year-old woman with a history of sexually transmitted infection. In most reported cases, there is no vascular flow on Doppler imaging modalities. We also detected high impedance of vascular flow around the cyst wall. Imaging modalities could not provide a definitive diagnosis. Tubal torsion was diagnosed upon laparotomy

Isolated torsion of the fallopıan tube in a postmenopausal woman; a rare entity

Isolated torsion of the fallopian tube is an uncommon cause of acute lower abdominal pain. The lack of pathognomonic symptoms, clinical findings on physical examination, and specific imaging or laboratory characteristics makes this entity difficult to diagnose preoperatively, which can cause surgical intervention to be postponed. We report a case of isolated torsion of the right fallopian tube in a 58-year-old woman with a history of sexually transmitted infection. In most reported cases, there is no vascular flow on Doppler imaging modalities. We also detected high impedance of vascular flow around the cyst wall. Imaging modalities could not provide a definitive diagnosis. Tubal torsion was diagnosed upon laparotomy

On Hadamard Type Integral Inequalities for nonconvex Functions

In this paper, we extend some estimates of the right and left hand side of a Hermite-Hadamard type inequality for nonconvex functions whose derivatives absolute values are \Phi-convex and quasi-\Phi-convex was introduced by Noor in Noor1.Comment: Mathematical Sciences And Applications E-Notes, in press. arXiv admin note: substantial text overlap with arXiv:1204.0923; and overlap with arXiv:1205.6657 by other author

Von Willebrand’s disease diagnosed after hemorrhage following hysteroscopic myoma resection and endometrial band excision

Von Willebrand factor, the largest human plasma protein, is an adhesive multimeric glycoprotein that mediates platelet adhesion to both the subendothelial matrix and endothelial surfaces and acts as a carrier for coagulation factor VIII in the circulation. Von Willebrand disease (vWD) is the most common inherited bleeding condition that involves extended or excessive bleeding and is caused by the deficiency or defect of vWF. In this case report, we present vWD diagnosed after hemorrhage following hysteroscopic myoma resection and endometrial band excision. The importance of a detailed medical history is emphasized as even health care workers cannot spontaneously give this information. Further tests are recommended in patients who have a history of prolonged bleeding as bleeding time and other routine coagulation tests done preoperatively cannot always make a definite diagnosis

Türkiye’de bankacılık söktörünün ekonomik büyüme üzerindeki etkileri : katılım bankacılığı ve konvansiyonel bankacılık üzerine bir inceleme

06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması, Düzenlenmesi ve Erişime Açılmasına İlişkin Yönerge” gereğince tam metin erişime açılmıştır.Bu çalışma bankacılık sektörünün ekonomik büyüme üzerindeki etkisini katılım bankacılığı ve konvansiyonel bankacılık özelinde tespit etmek amacıyla yapılmıştır. Çalışmanın ilk bölümünde bankacılık sistemi incelenmektedir. Bankacılığın teorik temeli, tarihsel gelişimi ve temel fonksiyonları açıklanacaktır. Bunun karşında kar – zarar ve faizsizlik esasına dayanan ve çalışmanın ana konusunu oluşturan Katılım Bankacılığı sistemi ikinci bölümde yakın plana alınmakta, bu sistemin dayandığı temel ilkeler, fon toplama ve kullandırma yöntemleri ve kendisini karşısında konumlandırdığı olgu olan faiz mefhumu incelenmektedir. Çalışmanın üçüncü bölümünde bankacılığın büyüme ile olan ilişkilerine bakılarak, bu konuda yapılmış olan ampirik literatür özetlenmiştir. İktisat literatüründe sıkça tartışılan "finansal gelişme mi ekonomik büyümeye etki eder yoksa ekonomik büyüme mi finansal gelişmeyi tetikler?" sorularına cevaben ortaya konan Talep Takipli, Arz Öncüllü Hipotez ve çift yönlü nedensellik kavramlarına değinilmiştir. Bu bağlamda Katılım Bankacılığı ve geleneksel bankacılık sistemleri ile ilgili dünyada yapılmış çalışmalar incelenecek, varılan sonuçlar özetlenecek ve Türkiye'de bu bankacılık türlerinin ekonomik büyümeye ne gibi katkılar sunduğu yahut sunabileceği niteliksel olarak anlatılmaya çalışılacaktır. Aynı zamanda bu konuda yapılan diğer ampirik çalışmalara ait araştırma metodolojileri tablo yardımıyla tasnif edilmiştir. Çalışmanın son bölümünde ise Türkiye'de Katılım Bankacılığının ve Konvansiyonel bankacılığın çeyrek dönemlik verileri ile özel sektöre kullandırdığı kredilerin iktisadi büyüme üzerindeki etkileri ekonometrik modellerle analiz edilmiştir. Çıkan sonuçlara göre politika önerileri üretilmiş ve yapılacak olan diğer çalışmalar için fikirler beyan edilmiştir. Anahtar Kelimeler: : Bankacılık Sistemi, Katılım Bankacılığı, Ekonomik Büyüme, Finansal Gelişme, ARDLThis study was conducted to determine the impact of the banking sector on economic growth in terms of participation banking and conventional banking. The first part of the study examines the banking system. The theoretical basis, historical development and basic functions of banking will be explained. Against this, the Participation Banking system, which is based on profit - loss and interest - free and which constitutes the main subject of the study, is taken into consideration in the second section, the basic principles on which this system is based, the methods of collecting and using funds, and the notion of interest, which is the case that is positioned against itself, is examined. The theoretical basis, historical development and basic functions of banking will be explained. Against this, the Participation Banking system, which is based on profit - loss and interest - free and which constitutes the main subject of the study, is taken into consideration in the second section, the basic principles on which this system is based, the methods of collecting and using funds, and the notion of interest, which is the case that is positioned against itself, is examined. In the third part of the study, the empirical literature on this subject is summarized by looking at the relationship of banking with growth. The concepts of demand follow-up, supply hypothesis and bi-directional causality, which are discussed in the economic literature, in response to the questions of ensel Does financial development affect economic growth or does economic growth trigger the development of finances? In this context Participation Banking and made the world associated with traditional banking systems studies to be analyzed, conclusions will be summarized and these types of banking in Turkey that contribute, such as how economic growth or will be explained qualitatively to offer. At the same time, research methodologies related to other empirical studies on this subject have been classified with the help of the table. In the last part of the study of Participation Banking in Turkey and quarterly data on the effects on the private sector to the economic growth of the loans it has been analyzed with conventional banking econometric models. According to the results, policy proposals were produced and ideas were expressed for other studies. Keywords: Banking System, Participation Banking, Economic Growth, Financial Development, ARD