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国防科工委把编制军工企业的设计规范、工艺规范、试验规范作为今后几年内国防工业标准化工作的重要任务之一。本文阐明了编制“三大规范”的重大意义,并介绍了我公司的基本做法,以供交流参考。 相似文献
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车辆正规化保养是提高运输保障能力的基础性工作.10年来,62211部队以军交运输"两个规定"为依据,狠抓车辆使用检查、维护保养和专业训练,大力加强车场设施设备建设,实现了车辆保养正规化、设施建设配套化、信息资料系统化,使部队的综合保障能力不断增强.10年来,团队累计完成各类进藏物资运输35万吨,安全行驶9 780多万公里,节约油料1 100吨,节约车材费1 80多万元,先后有1 6个基层单位被上级表彰为车辆管理工作先进单位,有126名同志被评为"爱车护装"先进个人,90%的连队实现了"千里运行无故障"的目标,创造了安全行车历史最好成绩. 相似文献
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An approximately optimal adaptive arithmetic coding (AC) system using a forbidden symbol (FS) over noisy channels was proposed which allows one to jointly and adaptively design the source decoding and channel correcting in a single process, with superior performance compared with traditional separated techniques. The concept of adaptiveness is applied not only to the source model but also to the amount of coding redundancy. In addition, an improved branch metric computing algorithm and a faster sequential searching algorithm compared with the system proposed by Grangetto were proposed. The proposed system is tested in the case of image transmission over the AWGN channel, and compared with traditional separated system in terms of packet error rate and complexity. Both hard and soft decoding were taken into account. 相似文献
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通过1995年、1997年、1999年等多年柔性石笼基础在路基防护工程中的应用实践,对柔性石笼基础分别与刚性、柔性墙身组合结构的挡土墙的使用效果,进行跟踪调查评价,探讨柔性石笼基础作为路基防护工程基础的稳定原理和适用条件,并简要归纳和分析柔性石笼基础的施工方法及其工程意义. 相似文献
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A new arithmetic coding system combining source channel coding and maximum a posteriori decoding were proposed. It combines source coding and error correction tasks into one unified process by introducing an adaptive forbidden symbol. The proposed system achieves fixed length code words by adaptively adjusting the probability of the forbidden symbol and adding tail digits of variable length. The corresponding improved MAP decoding metric was derived. The proposed system can improve the performance. Simulations were performed on AWGN channels with various noise levels by using both hard and soft decision with BPSK modulation.The results show its performance is slightly better than that of our adaptive arithmetic error correcting coding system using a forbidden symbol. 相似文献
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各位爱好旅游的朋友,您很可能已经游历过祖国的大江南北、长城内外的许多地方,饱览了江南秀色和塞外风情。但您也许还没有见过冰天雪地中不冻的松花江、没见过寒江雪柳、玉树琼花的奇特景观,没有领略过全国最大的化工城的风采。如果您感兴趣的话,就请您乘坐北上的列车,离京城、出山海关、过沈阳,再往前400多公里就来到了东北名城吉林。 吉林市地处吉林省东部,是长图线上第一个大站。往西距省会长春128公里,向南通过沈吉线与沈阳相连,向东沿长图线可直达与朝鲜接壤的国境站图们。如今,吉林省的第一条地方铁路——图珲铁路即将通车。那时,在吉林只用十几个小时就可到达北靠俄罗斯、南接朝鲜、东临日本海,号称东北亚金三角的珲春。长图线将成为吉林省改革开放的大动脉。而吉林正是这条大动脉上的重要枢纽。 相似文献