نتایج جستجو برای: روش fgls

تعداد نتایج: 369683  

Journal: :CoRR 2017
Sébastien Roch Karl Rohe

In order to sample marginalized and/or hard-to-reach populations, respondent-driven sampling (RDS) and similar techniques reach their participants via peer referral. Under a Markov model for RDS, previous research has shown that if the typical participant refers too many contacts, then the variance of common estimators does not decay like O(n−1), where n is the sample size. This implies that co...

ژورنال: :سیاست های راهبردی و کلان 0
مسعود نونژاد دانشیار و عضو هیأت علمی گروه اقتصاد دانشگاه آزاد اسلامی واحد شیراز فریده پرویزی کشکولی کارشناس ارشد اقتصاد دانشگاه آزاد شیراز

هدف اصلی این مطالعه بررسی اثر تلاطم نرخ حقیقی ارز بر صادرات غیر نفتی ایران به کشور های عمده طرف تجاری با استفاده از داده های فصلی در بازه زمانی2014:4-2001:1 می باشد. در این راستا، ابتدا تلاطم نرخ حقیقی ارز با استفاده از روش واریانس ناهمسانی شرطی خود بازگشتی تعمیم یافته (garch) محاسبه شده است. سپس، اثر تلاطم نرخ حقیقی ارز بر صادرات غیر نفتی ایران با تکیه بر مدل جاذبه و به روش رویکرد عملی حداقل م...

Journal: :Journal of clinical pathology 1982
Y Deugnier S Margules P Brissot M A Deugnier J C Bisconte M Bourel B Ferrand

Iron overload has been measured in 100 hepatic biopsies by three different methods: (i) biochemical assay of the liver iron concentration (LIC), (ii) histological grading (HISTO) and (iii) automated image analysis with a Leitz Texture Analysis System by estimating two parameters, (a) the total iron area (TIA) and (b) the first grey level step (FGLS) at which the iron is detected. Image analysis...

Journal: :BJOG : an international journal of obstetrics and gynaecology 2013
F Roseman H E Knight F Giuliani S Lloyd P Di Nicola A Laister S Roseman K Kennedy O Burnham B Patel F Puglia I Blakey L Cheikh Ismail

There are approximately 10,000 births per year in the county of Oxfordshire in the UK, which is one of the two European sites for the International Fetal and Newborn Growth Consortium for the 21(st) Century (INTERGROWTH-21(st) ) Project. The samples for both components of the project--the Fetal Growth Longitudinal Study (FGLS) and Newborn Cross-Sectional Study (NCSS)--were drawn from the John R...

چکیده در این تحقیق با در نظر داشتن نگرش ساختار ـ رفتار ـ عملکرد، ضمن استخراج رابطه ساختار و عملکرد (در یک چارچوب تئوریک) در سازمان کشورهای صادر کننده نفت (اوپک)، دو پارامتر "درجه توافق اعضای اوپک" و "حدس و باور اوپک نسبت به غیر اوپک" را در فاصله زمانی 2012-1974 برآورد می‌کنیم. نتایج تحقیق نشان می‌دهد که ساختار در این سازمان تبیین کننده و توضیح دهنده عملکرد است. "درجه توافق اعضای اوپک" در قالب ب...

Journal: :Advanced Engineering Materials 2023

Homogenization‐based topology optimization (HMTO) is one of the most extensively used grading methods to generate functionally graded lattice structures (FGLs). However, it requires a precharacterization lattices, which time‐consuming. As remedy, free‐size optimization‐based generation (FOGLG) explored as an alternative method FGLs. This article builds on authors’ previous work in HMTO and FOGL...

Journal: :BJOG : an international journal of obstetrics and gynaecology 2013
F Giuliani E Bertino M Oberto P Di Nicola G Gilli He Knight L Cheikh Ismail

Turin, Italy, was one of the two European sites for the INTERGROWTH-21(st) Project. The sample for the Newborn Cross-Sectional Study (NCSS) was drawn from two obstetric hospitals that together account for 79% of the city's approximately 12,000 births per year. Women were recruited for the Fetal Growth Longitudinal Study (FGLS) from ten antenatal clinics serving the city's largest obstetric hosp...

Journal: :BJOG : an international journal of obstetrics and gynaecology 2013
M K Dighe I O Frederick H F Andersen M G Gravett S E Abbott A A Carter H Algren D A Rocco S A Waller T K Sorensen D Enquobahrie I Blakey H E Knight L Cheikh Ismail

The North American site in the INTERGROWTH-21(st) Project was North Seattle, Washington State, USA. The majority of the data were collected from within Seattle City, which has approximately 12 300 births per year. The sample for the Newborn Cross-Sectional Study (NCSS) was drawn from two hospitals (Swedish Medical Center and the University of Washington) covering almost 80% of deliveries within...

Journal: :International Journal of Machine Tools & Manufacture 2021

The next-generation medical implants require locally customised biomechanical behaviour to echo the properties of hard tissues, making additive manufacturing (AM) an ideal route due its superior flexibility. AM titanium alloys with designed porosity is mainstream for artificial implants, which, however, hardly balance strength-modulus combination. Here a martensitic TiNi biomaterial low modulus...

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