نتایج جستجو برای: storage factor

تعداد نتایج: 1019392  

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2002
Sandra L Haberichter Mary A Jozwiak Jonathan B Rosenberg Pamela A Christopherson Robert R Montgomery

The von Willebrand factor (VWF) propeptide (VWFpp) is critical for the targeting of VWF multimers to storage granules. VWFpp alone efficiently navigates the storage pathway in AtT-20 and endothelial cells and chaperones mature VWF multimers to storage granules when the two proteins are expressed in cis or in trans. To further define the role of VWFpp in granular sorting, we examined its ability...

Journal: :Vision Research 2004
Wim A. van de Grind Maarten J. van der Smagt Frans A.J. Verstraten

If a motion aftereffect (MAE) for given adaptation conditions has a duration T s, and the eyes are closed after adaptation during a waiting period tw=T s before testing, an unexpected MAE of a 'residual' duration TrT s is experienced. This effect is called 'storage' and it is often quantified by a storage factor sigma=TrT/T, which can reach values up to about 0.7-0.8. The phenomenon and its nam...

2010
Mohit Saxena Michael M. Swift

The database storage hierarchy has been heavily optimized for the performance characteristics of disks. Storage managers typically employ rowor column-oriented storage layouts, or a combination, to improve the I/O performance of different query workloads with disks. The recent rise of flash memory-based solid-state drives (SSDs) significantly change the performance characteristics of storage: t...

2014
Farzad Farnoud Eitan Yaakobi Jehoshua Bruck

We consider the problem of approximate sorting of a data stream (in one pass) with limited internal storage where the goal is not to rearrange data but to output a permutation that reflects the ordering of the elements of the data stream as closely as possible. Our main objective is to study the relationship between the quality of the sorting and the amount of available storage. To measure qual...

Journal: :Optics express 2016
Bo E Miller Yuzuru Takashima

Resonant optical cavities have been demonstrated to improve energy efficiencies in Holographic Data Storage Systems (HDSS). The orthogonal reference beams supported as cavity eigenmodes can provide another multiplexing degree of freedom to push storage densities toward the limit of 3D optical data storage. While keeping the increased energy efficiency of a cavity enhanced reference arm, image b...

Journal: :Nature communications 2016
Yunlong Zi Jie Wang Sihong Wang Shengming Li Zhen Wen Hengyu Guo Zhong Lin Wang

To sustainably power electronics by harvesting mechanical energy using nanogenerators, energy storage is essential to supply a regulated and stable electric output, which is traditionally realized by a direct connection between the two components through a rectifier. However, this may lead to low energy-storage efficiency. Here, we rationally design a charging cycle to maximize energy-storage e...

2009
Lifeng Wang Frances H. Yang Ralph T. Yang

A Band N-doped microporous carbon has been synthesized via a substitution reaction. The obtained carbon exhibited much higher surface area than the previously reported Band N-doped carbon. The hydrogen storage measurements indicated that the Band N-doped microporous carbon had a 53% higher storage capacity than the carbon materials with similar surface areas. Furthermore, hydrogen storage via s...

Journal: :IBM Systems Journal 1992
Thad Jennings

Paging activity can be a major factor in determining whether a software workload will run on a given computer system. A program’s paging behavior is difficult to predict because it depends not only on the workload processed by the program, but also on the level of storage contention of the processor. A program’s fault rate function relates storage allocation to the page fault rate experienced w...

2016
José A. Domínguez-Navarro Elisabetta Tedeschi

The application of energy storage in offshore renewable generation systems allows managing the intrinsic uncertainty of the resources and improving the utilization factor of the electrical network. Optimal storage design algorithms generally have to evaluate the behavior of the whole system thousands times before converging to the optimal solution and the reliability of the results obviously de...

Journal: :Clinical chemistry 1984
J H Howanitz P J Howanitz C A Skrodzki J A Iwanski

Ammonia concentrations in plasma may increase because of contamination and deterioration of blood components during specimen handling and storage. Using replicate specimens from healthy volunteers, we studied influences of specimen processing and storage procedures on ammonia measurements made with a self-contained reagent system. Under some conditions, ammonia concentrations more than doubled....

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