نتایج جستجو برای: pillar
تعداد نتایج: 6040 فیلتر نتایج به سال:
A new structure of 1.55-μm pillar cavity is proposed. Consisting of InP-air-aperture and InGaAsP layers, this cavity can be fabricated by using a monolithic process, which was difficult for previous 1.55-μm pillar cavities. Owing to the air apertures and tapered distributed Bragg reflectors, such a pillar cavity with nanometer-scaled diameters can give a quality factor of 104-105 at 1.55 μm. Ca...
During the last two decades, many countries around the world with unfunded social security system have experienced an ageing problem. Some have opted for a compulsory private saving scheme. New Zealand, on the other hand, maintains a unique two-pillar system: universal pension as a public pillar and voluntary savings as a private pillar. This paper provides a summary of findings from the litera...
Due to pension fund problems in Iran, the multi-pillar social insurance system has been released in 2017. According to this, the first pillar is regarding to low income groups and finance through the public fund. The second pillar is defined benefit and finance pay as you go. The third pillar is defined contribution and fully funded finance. Contributions are transferred to the individual accou...
metal-organic frameworks (mofs) represent a new class of highly porous materials. on this regard, two nano porous metal-organic frameworks of [zn2(1,4-bdc)2(h2o)2∙(dmf)2]n (1) and [zn2(1,4-bdc)2(dabco)]·4dmf·1⁄2h2o (2), (1,4-bdc = benzene-1,4-dicarboxylate, dabco = 1,4-diazabicyclo[2.2.2]octane and dmf = n,n-dimethylformamide) were synthesized and characterized. they were used for preparation ...
A novel idea by using copper (Cu) pillar is proposed in this study, which can replace the through-silicon-vias (TSV) technique in future three-dimensional (3D) architecture. The Cu pillar formation under external bias in an Al/Cu/Al2O3/TiN structure is simple and low cost. The Cu pillar is formed in the Al2O3 film under a small operation voltage of <5 V and a high-current-carrying conductor of ...
Compare postoperative achievement of pillar palatal implant and uvulopalatal flap by polysomnographic and subjective methods after 1 year in obstructive sleep apnea and snoring patients. This study was retrospectively performed on 117 patients. An Epworth sleepiness scale for patients, obtained after the polysomnograpy during the preoperative and the 1st year of postoperative periods were fille...
The mechanical properties of the mammalian organ of Corti determine its sensitivity to sound frequency and intensity, and the structure of supporting cells changes progressively with frequency along the cochlea. From the apex (low frequency) to the base (high frequency) of the guinea pig cochlea inner pillar cells decrease in length incrementally from 75-55 µm whilst the number of axial microtu...
Germanium is one of the promising alloying anode (Si, Ge, Sn) materials for high capacity lithium ion batteries. Since it is isostructural with crystalline silicon, crystalline Ge is expected to show intriguing lithiation-induced phenomena similar to Si, such as anomalous volume expansion and fracture. Here, we present the study of lithiation of Ge micropillars, andwe compare the findings to si...
This paper introduces the concept of personalized physiological medicine that is specifically directed at the needs of the critically ill patient. This differs from the conventional view of personalized medicine, characterized by biomarkers and gene profiling, instead focusing on time-variant changes in the pathophysiology and regulation of various organ systems and their cellular and subcellul...
We demonstrate strain-rate sensitivity emerging in single-crystalline Cu nanopillars with diameters ranging from 75 up to 500 nm through uniaxial deformation experiments performed at different constant strain rates. In the range of pillar diameters and strain rates tested, we find that the size dependence of the pillar strength deviates from the ubiquitously observed power law to a relatively s...
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