نتایج جستجو برای: آزمایش خمش نیم دایرهای scb
تعداد نتایج: 73328 فیلتر نتایج به سال:
این پایان نامه، اثر بارگذاری مود ترکیبی i/iii را بر روی چقرمگی شکست مخلوط های آسفالتی گرم (hma) در دمای پایین 15- درجه بررسی می کند. برای شبیه سازی بارگذاری مود ترکیبی i/iii، تست شکست ساده ای با استفاده از نمونه نیم دایروی (scb) شامل یک ترک مورب به وسیله انجام آنالیزهای المان محدود فراوان ارائه گردیده است. نمونه scb، به وسیله دستگاه تراکم ژیراتوری تولید شده است. همچنین از فیکسچر خمشی سه نقطه بر...
[1] We present results from a one‐way coupling between the kinetic Ring Current Atmosphere Interactions Model with Self‐Consistent B field (RAM‐SCB) and the Space Weather Modeling Framework (SWMF). RAM‐SCB obtains plasma distribution and magnetic field at model boundaries from the Block Adaptive Tree Solar Wind Roe Upwind Scheme (BATS‐R‐US) magnetohydrodynamics (MHD) model and convection potent...
In this thesis we present measurements on several different devices, including the single-Cooper-pair box (SCB), the single-electron box, tunable superconducting resonators and so called transmon qubits. By exploiting the quantum capacitance of the SCB, its state was measured by embedding the box in a radio-frequency resonator. The state dependent change in the quantum capacitance then leads to...
The Endangered Species Act (ESA) of the United States was enacted in 1973 to prevent the extinction of species. Recovery plans, required by 1988 amendments to the ESA, play an important role in organizing these efforts to protect and recover species. To improve the use of science in the recovery planning process, the Society for Conservation Biology (SCB) commissioned an independent review of e...
در سنگها ترکهای ریزی وجود دارد، هنگامی که سنگ تحت تأثیر تنش قرار میگیرد تنش در نوک این ترکها متمرکز شده و باعث میشود که سنگ قبل از رسیدن به مقاومت نهایی خود بشکند. پارامتری که میزان بحرانی ضریب شدت تنش بر نوک ترک سنگ را نشان میدهد چقرمگی شکست است. از آنجا که تعیین چقرمگی شکست مودI بهوسیلۀ انجام آزمایش، وقتگیر و پرهزینه است بنابراین، روشی ساده برای تعیین چقرمگی شکست سنگ مفید است. در ا...
OBJECTIVES This paper aims to identify the mediating mechanisms of a school-based obesity prevention program (DOiT). METHODS The DOiT-program was implemented in Dutch prevocational secondary schools and evaluated using a controlled, cluster-randomised trial (September 2003 to May 2004). We examined mediators of effects regarding (1) consumption of sugar containing beverages (SCB); (2) consump...
The present study aimed to investigate the protective effect of a modified p5 peptide, TFP5, on 1-methyl-4-phenyl pyridine ion (MPP+)-induced neurotoxicity in cortical neurons and explore the therapeutic effect of TFP5 on Parkinson's disease (PD). MPP+ was applied to a primary culture of mouse cortical neurons to establish the cell model of PD. Neurons were divided into four groups: Control, mo...
The influences of short chain branching (SCB) and molecular weight (Mw) of low density polyethylene (LDPE) on its melt miscibility with polypropylene (PP) were investigated by rheological techniques. Rheological measurement and different data-treatment techniques as well as rheological models suggest that blends of PP with LDPE of high SCB (22 CH3/1000 C) are miscible at all compositions. Howev...
The primary objective of this research is to develop predictive, year-round habitat models of the presence of calling blue and fin whales in the Southern California Bight (SCB). We will also investigate the scales over which blue and fin whales respond to their environment to better understand the functionality of the predictive relationships in those models. We will base our models on the avai...
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