Computationally efficient locality-aware interconnection topology for multi-processor system-on-chip (MP-SoC)

This paper evaluates the Triplet Based Architecture, TriBA – a new idea in chip multiprocessor architectures and a class of Direct Interconnection Network (DIN). TriBA consists of a 2D grid of small, programmable processing units, each physically connected to its three neighbors so that advantageous features of group locality can be fully and efficiently utilized. Any communication model can be well characterized by locality properties and, any topology has its intrinsic, structural, locality characteristics. We propose a new criterion in performance evaluation that is based on the concept of locality in an interconnection network, the “lower layer complete connect”. Our proposed criterion depicts how completely a processing node is connected to all its neighbors. TriBA is compared with 2D Mesh and Binary Tree as static interconnection network. The comparison / evaluation is enumerated from three orthogonal view points, viz., computational speed, physical layout and cost. Our analysis concludes that TriBA is computationally efficient interconnection strategy that exploits group locality in processing nodes.     

双Lévy跳扩散模型下的欧式期权定价

主要讨论在带Lévy跳的Vasicek随机利率模型下，当标的资产的价格也由带Lévy跳的模型给出时，用标的资产和零息债券两种计价单位对相应的欧式期权进行定价。计算中主要用到计价单位转换原理，即将风险中性测度下的计算转换到两种计价单位对应的概率测度下进行，得到了双Lévy跳扩散模型下的欧式期权定价公式。     

The mitochondrial function was impaired in APP knockout mouse embryo fibroblast cells

The amyloid precursor protein (APP) is recognized as the source of Aβ, which plays an important role in Alzheimer’s disease. However, the biological function of APP is obscure. Previous studies showed that mitochondria could be a target of APP. In this work, APP knockout mouse embryo fibroblast (MEF) cells were used to test if APP plays any role in maintaining the mitochondrial function. As the result, APP knockout MEF cells (APP-/- cells) showed the abnormal mitochondrial function, including slower cell pr...     

脱脂桐粕蛋白质的溶解与pH值的关系

本文用克达尔定氮法对桐粕蛋白质在不同PH值的溶液中溶解量的测定，绘出了桐粕蛋白质在不同pH值条件下的溶解曲线，从而确定了桐粕蛋白质的等电点范围为pH＝4．8-7．0