نتایج جستجو برای: strain measurements

تعداد نتایج: 578477  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم انسانی 1389

رها شدن گاز so2 در اثر احتراق سوخت های فسیلی یکی از علل اصلی آلودگی زیست محیطی و بیماری های تنفسی می باشد. عمده ترین ماده گوگردی موجود در نفت خام و برش های آن به صورت دی بنزوتیوفن و مشتقات الکیله آن می باشد. در گوگردزدایی زیستی، حذف گوگرد از برش های نفتی با استفاده از باکتری ها توسط محصولات ژن هایabc dsz که اولین بار از باکتریrhodococcus erythropolis strain igts8 جدا شدند از طریق مسیرمتابولیکی ...

1997
R. A. Mair T. Maruyama

The deformation potentials a, b and d for GaAs have been determined from polarized photoluminescence measurements upon a set of epitaxially grown strained.GaAs structures possessing varying levels of compressive biaxial lattice strain. X-ray diffraction measurements yield values for the degree of lattice strain while the polarized photoluminescence measurements permit a separate determination o...

2014
Stefan Orwat Aleksander Kempny Gerhard-Paul Diller Pia Bauerschmitz Alexander Ch. Bunck David Maintz Robert M. Radke Helmut Baumgartner

Background: Left ventricular longitudinal strain (LV-LS) and strain rate (SR) are sensitive markers of early systolic dysfunction. Aim: To evaluate the feasibility of a novel, cardiac magnetic resonance (CMR) based method known as feature tracking (FT) for the assessment of strain and SR, and to compare the CMR based results to those obtained on standard transthoracic echocardiography (TTE) in ...

Dasht-e-Arjan is a northeast trending graben located 65 km west of Shiraz. It was formed along active segments of the Korrehbas fault, perpendicularly to the Shahnesh in and Salamati anticlines. Oriented sampling from bordering fault planes and striations was carried out to evaluate the relative amounts of paleostress/strain needed to form the graben. Measurements of e-twins and c-axis of calci...

Journal: :Journal of Instrumentation 2023

Abstract Fiber optic sensors based on the fiber Bragg grating (FBG) technology [1] is widely used to produce quasi-distributed monitoring systems measure mechanical parameters for Structural Health Monitoring (SHM) of civil engineering structures [2]. FBG are produced in core optical fiber, as a short segment where diffraction (5–10 mm). The principle operation FBGs occurring at grating: if bro...

Journal: :Optics express 2008
Wilfried G J H M van Sark Keith W J Barnham Lenneke H Slooff Amanda J Chatten Andreas Büchtemann Andreas Meyer Sarah J McCormack Rolf Koole Daniel J Farrell Rahul Bose Evert E Bende Antonius R Burgers Tristram Budel Jana Quilitz Manus Kennedy Toby Meyer C De Mello Donegá Andries Meijerink Daniel Vanmaekelbergh

Luminescent solar concentrators (LSCs) generally consist of transparent polymer sheets doped with luminescent species. Incident sunlight is absorbed by the luminescent species and emitted with high quantum efficiency, such that emitted light is trapped in the sheet and travels to the edges where it can be collected by solar cells. LSCs offer potentially lower cost per Wp. This paper reviews res...

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