نتایج جستجو برای: سوپرآلیاژ gtd

تعداد نتایج: 497  

2012
Kristen K Rumer Miriam D Post Rhea S Larivee Martina Zink Jill Uyenishi Anita Kramer Deanna Teoh Kevin Bogart Virginia D Winn

Sialic acid immunoglobulin-like lectin (Siglec)-6 is a transmembrane receptor that binds leptin. Leptin is an obesity-associated peptide hormone overexpressed in gestational trophoblastic disease (GTD). GTD encompasses several placental abnormalities that range from benign to malignant. Among GTD, molar placentas are characterized by excess proliferation, whereas gestational trophoblastic neopl...

2017
Kathryn McGregor Aung Myat Min Noaeni Karunkonkowit Suporn Keereechareon Mary Ellen Tyrosvoutis Nay Win Tun Marcus J Rijken Gabie Hoogenboom Machteld Boel Kesinee Chotivanich François Nosten Rose McGready

BACKGROUND The use of obstetric ultrasound in the diagnosis of gestational trophoblastic disease (GTD) in high-income settings is well established, leading to prompt management and high survival rates. Evidence from low-income settings suggests ultrasound is essential in identifying complicated pregnancies, but with limited studies reviewing specific conditions including GTD. OBJECTIVE The ai...

ژورنال: مواد نوین 2018

به منظور بررسی رفتار تغییرشکل گرم سوپرآلیاژ ریخته­گری GTD 111 آزمایش­های فشار گرم در محدوده دمایی     °C 1100- 950 و سرعت کرنش های 1-s 1- 001/0 انجام شدند. تمامی منحنی­های سیلان افزایش نسبتاً خطی تنش تا یک نقطه پیک و سپس نزول آن تا کرنش 5/0 را نشان دادند و منطقه تغییرشکل حالت پایدار با تنش ثابت مشاهده نشد. این روند به مهار نابجایی­ها توسط ساختار دندریتی و تکثیر آن­ها در نقطه پیک تنش نسبت داده شد...

2017
Young Jae Lee Jeong Yeol Park Dae Yeon Kim Dae Shik Suh Jong Hyeok Kim Yong Man Kim Young Tak Kim Joo Hyun Nam

OBJECTIVE The aim of this study was to compare responses to single-agent chemotherapies and evaluate the predictive factors of resistance in low risk (LR) gestational trophoblastic disease (GTD). The chemotherapy agents included methotrexate (MTX) and actinomycin D (ACT-D). METHODS We conducted a retrospective study of 126 patients with GTD who were treated between 2000 and 2013. A total of 7...

2015
Fatma Eskicioglu¹ Burcu Artunc Ulkumen Esat Calik

OBJECTIVE The goal of this study was to investigate whether gestational trophoblastic disease (GTD) and healthy pregnancy differ with respect to complete blood count parameters and these parameters can be used both to explain the pathophysiologic mechanisms and differentiate the two conditions from each other. METHODS The data obtained from 37 women with GTD and 61 healthy pregnancies (contro...

2016
M. Darmon R. Raillon V. Dorval

Simulation is helpful for evaluating the performances of inspection techniques and requires the modeling of waves scattering from defects. Two classical flaw scattering models have been previously evaluated and implemented in the CIVA platform developed by CEA/LIST to deal with planar defects: the geometrical theory of diffraction (GTD) and the Kirchhoff approximation (KA). These two approaches...

2017
Anita Madan

Introduction: Gestational trophoblastic disease (GTD) consists of group of disorders having pathology of abnormal trophoblastic proliferation ranging from hydatidiform mole to gestational trophoblastic neoplasia. Based on differences in morphology, histopathology, karyotype and clinical features, hydatidiform mole can be categorized into partial and complete moles. Molar pregnancy incidence var...

2004
Miroslav Nagy Michael D. Scadron Gerald E. Hite

We start by studying the Goldberger-Treiman discrepancy (GTd) ∆ = (2.259± 0.591)%. Then we look at the πN σ term, with the dimensionless ratio σN/2mN = 3.35%. Finally we return to predicting (via the quark model) the πN coupling constant, with GTd ∆ → 0 as mq → mN/3. PACS: 12.39.Ki, 12.39.Mk, 13.25.-k, 14.40.-n Given the recent new value of the πNN coupling constant [1] g πNN/4π = 13.80± 0.12 o...

ژورنال: مهندسی متالورژی 2019

ایجاد توزیعی یکنواخت از رسوبات γ'در سوپرآلیاژهای پایه نیکل از اهمیت بالایی برخوردار است. افزودن عملیات حرارتی آنیل انحلالی ثانویه به عملیات حرارتی مرسوم سوپرآلیاژ پلی‌کریستالGTD-111 که یکی از سوپرآلیاژهای پرکاربرد صنعتی است، از راههای ایجاد توزیع یکنواخت و افزایش کسر حجمی رسوبات فاز γ' است. در این تحقیق، اثر دمای آنیل انحلالی ثانویه در دماهای 960، 980 و 1000 درجه سانتیگراد و زمانهای 1، 2، 4 و 8...

2008
Miroslav Nagy Michael D. Scadron

We start by studying the Goldberger-Treiman discrepancy (GTd) ∆ = (2.259± 0.591)%. Then we look at the πN σ term, with the dimensionless ratio σN/2mN = 3.35%. Finally we return to predicting (via the quark model) the πN coupling constant, with GTd ∆ → 0 as mq → mN/3. Given the recent new value of the πNN coupling constant [1] g πNN/4π = 13.80± 0.12 or gπNN = 13.169± 0.057, (1) along with the ob...

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