Proof of Effectiveness of Generalized Modus Ponents Method R_w

ＰｒｏｏｆｏｆＥｆｅｃｔｉｖｅｎｅｓｏｆＧｅｎｅｒａｌｉｚｅｄＭｏｄｕｓＰｏｎｅｎｔｓＭｅｔｈｏｄＲｗＣＵＩＢａｏｌｉｎｇＨＵＡＮＧＴｉｙｕｎ（崔宝灵）（黄梯云）（ＳｃｈｏｏｌｏｆＭａｎａｇｅｍｅｎｔ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏ...     

多元奇偶函数对称坐标的曲面积分的简化计算

根据被积函数的奇偶性和曲面的对称性，可使较复杂的对称坐标的曲面积分化简。根据其奇偶性所得相应的简化结论，具有不同于二重积分、三重积分及对称面积的曲面积分的特点。本文给出了对称坐标的曲面积分的简化计算方法。     

一种基于二叉树的Cache一致性目录方法

本文提出了一种高度并发的Ｃａｃｈｅ一致性方法，着重描述了它的并发性，并且通过和ＩＥＥＥＳＣＩ协议的性能比较，表明这种Ｃａｃｈｅ一致性方法具有较好的伸缩能力，适于Ｓ２ＭＰ结构。     

Utilization Bounds for EDF Scheduling on Real-Time Multiprocessor Systems

The utilization bound for earliest deadline first (EDF) scheduling is extended from uniprocessors to homogeneous multiprocessor systems with partitioning strategies. First results are provided for a basic task model, which includes periodic and independent tasks with deadlines equal to periods. Since the multiprocessor utilization bounds depend on the allocation algorithm, different allocation algorithms have been considered, ranging from simple heuristics to optimal allocation algorithms. As multiprocessor utilization bounds for EDF scheduling depend strongly on task sizes, all these bounds have been obtained as a function of a parameter which takes task sizes into account. Theoretically, the utilization bounds for multiprocessor EDF scheduling can be considered a partial solution to the bin-packing problem, which is known to be NP-complete. The basic task model is extended to include resource sharing, release jitter, deadlines less than periods, aperiodic tasks, non-preemptive sections, context switches, and mode changes.     

薄板矩形盒拉深试验及应力分析

利用法兰曲边当量半径的简化方法对矩形盒拉深中的直边和曲边侧壁部拉入方向的应力分布进行了分析和计算，其结果与试验和有限元计算结果基本吻合。指出矩形盒短边侧壁拉深方向的应力值较大，沿凹模入口线上，角部拉入应力最大，直边部径向应力在零上下波动，凹模入口线附近局部区域存在法向压缩变形倾向。     

对称转台在微波器件加工过程中的应用

为提高微波器件的加工合格率,将对称转台应用于微波器件加工的硬件设施中,并分析了对称加工的特点。以某微波器件加工为例,简要介绍了对称转台的应用。实践证明,对称转台的使用提高了微波器件的加工质量、降低了成本。     

KOH‐assisted microwave post‐treatment of activated carbon for efficient symmetrical double‐layer capacitors

It is important to tune the surface and pore structures of carbon materials for their application in capacitors. Herein, a novel microwave‐based approach is demonstrated to significantly increase the capacity of a supercapacitor. After activated carbon (AC) with KOH was treated by microwave heating only for 8 min, its symmetrical double‐layer capacitor increased from 68.6 to 107.9 F/g at current density of 0.2 A/g with 2 M KOH aqueous solution. The excellent capacity retention of 96% was obtained even after 4000 galvanostatic charge/discharge cycles at current density of 5 A/g. This microwave approach is much more efficient than the conventional heating process to tune the electrochemical properties of AC. Copyright © 2016 John Wiley & Sons, Ltd.     

对称割线放张法在庙沟中桥先张法预应力板施工中的应用

对称割线放张法在公路桥梁建设中应用非常广泛，本文通过对对称割线放张法在庙沟中桥建设的应用介绍，简单阐述了对称割线放张法的构思及放张步骤、放张计算及放张方案等方面的介绍，供同行参考。     

基坑内支撑水平刚度计算的探讨

为解决建筑基坑支护技术规程不能满足实际工程设计的需要,从刚度的基本定义出发,推导了平面对称问题和平面非对称问题两种情况下支撑水平刚度的计算公式,与基坑支护技术规范一致,提出了斜撑与对撑统一的支撑(包括对撑和斜撑)刚度计算公式,拓展了公式的适用范围,方便了工程设计.     

钢结构柱脚锚栓设计公式的分析与改进

对钢柱脚锚栓计算方法进行了总结,提出了更符合实际受力情况的锚栓计算方法,并通过算例与其它计算方法进行了比较,证明所提出的方法比其它方法有更好的计算结果。