冷库安全性综合评判指标体系的建立初探

本文从“人-机-环境-管理”这一系统论的角度，综合事故指标和隐患指标，对冷库安全性综合评判模型指标体系的建立进行了初步探索。     

山东省果蔬冷库技术状况剖析

根据对山东果蔬冷库问卷调查的反馈,对80份有效问卷进行统计分析。发现山东果蔬冷库的技术水平偏低,仅5％的冷库采用自动控制,基本采用活塞式压缩机。制冷系统的管理十分薄弱,50％左右的冷库缺乏专业人员。有1／4的问卷没有反馈全年的电费和用电量。对于相同库容量的冷库,全年电耗差别可达3倍以上,反映出山东果蔬冷库的节能有巨大的潜力。     

低温冷库的温度要求与能效分级探讨

冷冻食品在低温冷库中贮藏是食品冷链中的重要环节,低温冷库的库温不均匀度、库温波动对货品品质有非常重要的影响。在保证正确的库温、合理的库内温度不均匀度和库温波动范围的前提下,对冷库能耗进行评价才有意义。制订低温冷库温度要求和对低温冷库的能效进行分级,将在规范低温冷库的设计和建设,提高冷库的货品品质,保证食品安全,降低冷库能耗,提高冷库的综合效益等方面发挥积极的作用。     

运用匀矿计算机优化配料技术降低铁矿粉采购成本

详细地阐述了匀矿计算机优化配料技术的原理,找出匀矿最优工艺。利用匀矿最优工艺,对库存铁矿粉的经济性做出客观评价,实现对铁矿粉的补充采购节奏的控制,并通过对铁矿粉原料库中重点品种铁矿粉的采购价格的控制,最终实现降低采购成本的目的。     

三峡工程第一套砼加冰预冷系统的设计和使用

阐述了三峡工程第一套砼加冰预冷系统的工作原理、构造以及主要技术参数的确定,并对使用情况作了分析;着重对IS120—60冰库、气力输送片冰装置、输冰螺旋机和称冰装置作了探讨;对照实际使用的经验和尚存的一些问题,提出了切合实际的技术措施,以促使砼加冰预冷技术进一步完善.     

The Phonological Store of Working Memory: Is It Phonological and Is It a Store?

The phonological store construct of the working memory model is critically evaluated. Three experiments test the prediction that the effect of irrelevant sound and the effect of phonological similarity each survive the action of articulatory suppression but only when presentation of to-be-remembered lists is auditory, not visual. No evidence was found to support the interaction predicted among irrelevant speech, modality, and articulatory suppression. Although evidence for an interaction among modality, phonological similarity, and articulatory suppression was found, its presence could be diminished by a suffix, which is an acoustic, not a phonological factor. Coupled with other evidence-from the irrelevant sound effect and errors in natural speech-the action attributed to the phonological store seems better described in terms of a combination of auditory-perceptual and output planning mechanisms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

导弹武器系统维修保障建模与仿真

根据系统工程的建模仿真思想提出导弹武器系统维修保障仿真模型的建模方法和思路,包括任务、功能、维修过程和资源使用过程建模,并以某型导弹的贮存和使用过程为例,利用Monte Carlo仿真的方法对导弹武器系统的维修保障仿真试验进行分析,并得出导弹武器系统的作战能力和保障能力评价参数。     

Two-Dimensional Test Data Compression for Scan-Based Deterministic BIST

In this paper a novel architecture for scan-based mixed mode BIST is presented. To reduce the storage requirements for the deterministic patterns it relies on a two-dimensional compression scheme, which combines the advantages of known vertical and horizontal compression techniques. To reduce both the number of patterns to be stored and the number of bits to be stored for each pattern, deterministic test cubes are encoded as seeds of an LFSR (horizontal compression), and the seeds are again compressed into seeds of a folding counter sequence (vertical compression). The proposed BIST architecture is fully compatible with standard scan design, simple and flexible, so that sharing between several logic cores is possible. Experimental results show that the proposed scheme requires less test data storage than previously published approaches providing the same flexibility and scan compatibility.     

移动应用商店跟踪研究

在对目前各主流移动应用商店进行跟踪调研的基础上,对其产生背景和意义、系统结构、业务流程、产业链、运营模式、赢利模式等进行了分析。     

箱式火箭炮贮运发射筒电磁兼容性设计与分析

设计了贮运发射筒电磁兼容性方案,并对不同丝径的铜网屏蔽效能进行计算与分析,确定出丝径0.3mm、方形网眼边长0.2mm的铜网具有较好屏蔽效能。方案设计使火箭弹避免电磁干扰和破坏,保证了火箭弹安全贮存和正常实现功能。