“深海巨鲨”:铁甲“格斗士”     

魏晋 《大学生》2021,(2)

格斗机器人的比赛很酷,双方都全力要击毁对方。世界机器人大赛已有30多年历史。3年前,我们哈尔滨工业大学"深海巨鲨"机器人团队首次参赛时,发现国内参赛队多是缺少经验的铁甲爱好者,而国外多数战队已有20多年的造机和参赛经验,其中实力强劲的老牌战队一直占据大部分冠军席位。  相似文献   

无所不能的细菌     

李津军 《中国青年科技》2001,(4):58-59

以往，人们通常把细菌描绘成可怕的魔鬼。一提起它，大家往往会联想到传播疾病、危害健康的元凶。其实，在细菌大家族里，并不是所有的细菌都在危害人类，亦有许多像“硫磺细菌”一样造益于人类的细菌。  相似文献   

为了生命尊严的死亡     

宋罡 《中国新闻周刊》2005,(8):69-69

在并不非常精彩的2004年的国际 影坛上,一部西班牙影片《深海长眠》 凭借其尖锐的主题和男主角贾维尔· 巴登精湛的演技成为大赢家。可以说, 本片的导演--曾经拍摄过《小岛惊 魂》的亚利桑德罗·阿曼巴是本年度最 幸运的导演--《深海长眠》不仅在威 尼斯电影节上获得了评委会大奖和男 主角奖,又在金球奖的评选上夺得最 佳外语片奖,而后更是在2月27日揭 晓的第77届奥斯卡奖上,将最佳外语 片奖一并收入囊中。  相似文献   

阅读犹如采矿——谈创造性地开掘教材     

付宁 《湖南教育》2007,(8):12-13

语文教材的每一篇课文都是有独特价值的。一位承担过多次公开课的语文教师深有感触地说:"决定公开课成败的,不是谁用了什么‘花招’,而是谁把课文上得最有‘意义’。  相似文献   

高中生物学教材作业系统的设计     

刘艳红 《生物学教学》2006,31(3):22-25

本文试结合教学实践，通过对新课程学生评价体系和教学评价系统两方面，分析新课标理念下的作业系统的设计要求，努力建立“兼顾知识、能力和情感等目标，重视知识的迁移、方法的运用和探究能力的培养”的作业系统。并通过具体案例进行分析说明。  相似文献   

FARMER: A novel approach to file access correlation mining and evaluation reference model     

夏鹏  冯丹  王芳 《上海大学学报(英文版)》2011,15(6):574-588

File semantic has proven effective in optimizing large scale distributed file system. As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems, file system can provide useful and insightful information about semantic. Hence, file semantic mining has become an increasingly important practice in both engineering and research community. Unfortunately, it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process. Even worse, the challenges are exacerbated due to the intricate interdependency between these factors, and make it difficult to fully exploit the potentially important correlation among various semantic knowledges. This article proposes a file access correlation miming and evaluation reference (FARMER) model, where file is treated as a multivariate vector space, and each item within the vector corresponds a separate factor of the given file. The selection of factor depends on the application, examples of factors are file path, creator and executing program. If one particular factor occurs in both files, its value is non-zero. It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors. Benefit from this model, FARMER represents files as structured vectors of identifiers, and basic vector operations can be leveraged to quantify file correlation between two file vectors. FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the “bad knowledge” can be filtered out. To demonstrate the ability of new FARMER model, FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations. In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented. Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%–40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.  相似文献   

创新MuVo V200     

剑琳 《科技新时代》2005,(5):50-50

它讲述了乘坐极富传奇色彩的美国“阿尔文号”载人深潜器潜入海底2500米的种种难忘经历。  相似文献   

深海里的星星（一）     

独木舟 《少年作文辅导(中学版)》2011,(8):86-90

假如你在我颠沛流离的时候应允我现世安稳不是幻想;假如你在我说我什么都不在乎的时候理解我所有的渴望．假如你会在我狂笑不止的时候轻声安抚我不要悲伤：  相似文献   

深海里的星星2（三）     

独木舟 《少年作文辅导(中学版)》2011,(9):85-89

落薰似乎无法忘却林逸舟,把自己封闭在家里。落薰被康捷等姐妹死党耍挟强拽出来见光,约定看望躺在医院的素然姐。落薰在医院见到了素然姐的新生女儿浅浅。时光是什么？时光是落薰昨天还贴在林逸舟耳畔说情话,今天却永远失去了。时光是李珊珊毁容,  相似文献   

健忘的章鱼     

王磊 《初中生》2011,(16):44-45

海鳗是章鱼的天敌,这种深海杀手常常出其不意地对章鱼进行攻击,然后以极其凶猛的方式将章鱼活活吞进肚里。  相似文献