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风雨后,再见彩虹 读“危机公关”操作指南——《扫雷》 被引量:1
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作者 李平 《资源再生》 2011年第8期66-67,共2页
纷纷绕绕的七月已然过去,而发生在七月的“危机”却仍在演绎。先是“红十字商会”的郭美美事件、高铁停电事件、动车撞车事件、还有中海油漏油事件、故宫宋瓷受损事件、政府部门晒“三公”、外交部的淘宝体等等引起各界的广泛关注和批... 纷纷绕绕的七月已然过去,而发生在七月的“危机”却仍在演绎。先是“红十字商会”的郭美美事件、高铁停电事件、动车撞车事件、还有中海油漏油事件、故宫宋瓷受损事件、政府部门晒“三公”、外交部的淘宝体等等引起各界的广泛关注和批评。一起起“危机”将相关当局(政府和企业)推向“争议”的焦点。 展开更多
关键词 《扫雷》 操作指南 危机公关 停电事件 风雨 彩虹 政府部门 漏油事件
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扫雷欲与微软试比高
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作者 郑凯 《家庭电脑世界》 2002年第4期90-92,共3页
关键词 微软 程序设计 《扫雷》 电脑游戏 数据结构
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Influence of layout of scanners on intelligent mine scanning trails
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作者 李大勇 赵俊利 +1 位作者 王妍 王立君 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2016年第3期229-234,共6页
To expand scanning area and attack range without changing the inner structure of intelligent warhead, a new arrangement mode of the scanner for intelligent mine is proposed. The required coordinate systems are es... To expand scanning area and attack range without changing the inner structure of intelligent warhead, a new arrangement mode of the scanner for intelligent mine is proposed. The required coordinate systems are established firstly on the basis of advanced dynamics principle. and the exterior ballistics equations are deduced. Then the equations of scanning trails are established by the method of space analytic geometry. To get the scanning trails. the differential equations are transformed into discrete simulation model using the algorithm of fourth order Runge-Kutta and then are simulated using Matlab. Compared with the scanning trails obtained by the traditional layout of scanner, the scanning trails obtained by the proposed layout of scanner has larger horizontal range of scanning circle and bigger trarget acquisition probability. Therefore, the new arrangement mode of the scanner for intelligent mine can increase attack range. 展开更多
关键词 intelligent mine SCANNER scanning trails exterior ballistics
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ENLARGING SAR PATCH-MAPPING AREA BY ANTENNA BEAM SCAN 被引量:1
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作者 朱岱寅 朱兆达 叶少华 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2003年第2期201-204,共4页
The approach for enlargement of SAR patch mapping area by antenna beam scan is investigated, which serves for moderate fine-resolution mapping of medium-sized terrain patches. The scanning angular velocity and the sca... The approach for enlargement of SAR patch mapping area by antenna beam scan is investigated, which serves for moderate fine-resolution mapping of medium-sized terrain patches. The scanning angular velocity and the scanning angular scope are determined respectively. The angular velocity of the scanning antenna is controlled to scan over just one azimuth 3 dB beam width in the time interval during which the radar platform moves over one synthetic aperture length determined from the desired cross-range resolution, radar wavelength, nominal slant range, and squint angle. The scanning angular scope is mainly determined by the azimuth width of the terrain patch, nominal slant range, squint angle, platform velocity, and azimuth beam width. Finally, the related experimental results of an airborne SAR are presented. The linear range-Doppler algorithm is employed in image formation after motion compensation is conducted to remove the effect of transnational motion of the radar platform relative to the map center. 展开更多
关键词 SAR antenna beam scan patch-mapping
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最“大”的小游戏 Windows系统游戏历代记
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作者 hatikun 《家用电脑与游戏》 2010年第9期70-75,共6页
这世界上最大的游戏是什么?40G的《战神Ⅲ》?不不不,我说的“大”不是指容量。如果按照用户数量和消耗时间来看,最大的游戏很有可能是Windows的《纸牌》;而从人气和投入的精力总量来算,《扫雷》恐怕也难逢敌手。没错,或许正是这... 这世界上最大的游戏是什么?40G的《战神Ⅲ》?不不不,我说的“大”不是指容量。如果按照用户数量和消耗时间来看,最大的游戏很有可能是Windows的《纸牌》;而从人气和投入的精力总量来算,《扫雷》恐怕也难逢敌手。没错,或许正是这些身量不过数百KB的系统自带小游戏,才是PC平台真正的游戏之王。 展开更多
关键词 WINDOWS系统 小游戏 历代 用户数量 《扫雷》 PC平台
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看听控赏谁在影响你的游戏体验
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《微型计算机》 2012年第34期62-75,共14页
玩游戏,似乎是一件非常简单的事情。游戏,谁不会玩呢?从《扫雷》、《植物大战僵尸》到到《战地3》、《魔兽世界》,大大小小的游戏每天都在不同的时刻陪伴着你的生活。
关键词 游戏 《魔兽世界》 《扫雷》 生活
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莫让游戏玩我们
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作者 徐洪斌 《软件导刊》 2003年第5期46-49,共4页
<正> 我弟今年大一,高考前很少玩游戏,现在'解放'了,开始疯狂地玩游戏。每当我俩玩一个游戏的时候他都在暗暗地和我较劲,总是希望比我先通关。可每回他都失望:'我练到30级了!……啊?!你都60级啦?!'、'我找到... <正> 我弟今年大一,高考前很少玩游戏,现在'解放'了,开始疯狂地玩游戏。每当我俩玩一个游戏的时候他都在暗暗地和我较劲,总是希望比我先通关。可每回他都失望:'我练到30级了!……啊?!你都60级啦?!'、'我找到水晶剑了!……啊?!你都玄铁剑了啊?!'……呵呵,倒不是我真比他高到哪里去,主要是因为我有秘密武器啦,哈,就是游戏修改工具!别说我作弊,我只是在玩游戏,可不想被游戏玩哦! 展开更多
关键词 游戏修改工具 《扫雷》 操作界面 电脑游戏
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Mechanism of mine water-inrush through a fault from the floor 被引量:9
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作者 HAN Jin SHI Long-qing +2 位作者 YU Xiao-ge WEI Jiu-chuan LI Shu-cai 《Mining Science and Technology》 EI CAS 2009年第3期276-281,共6页
The mechanism of mine water inrushes in coal mines in China differs considerably from that in other countries.In China, most water inrushes occur from floor strata, where the water-inrush sources are karstic limestone... The mechanism of mine water inrushes in coal mines in China differs considerably from that in other countries.In China, most water inrushes occur from floor strata, where the water-inrush sources are karstic limestone aquifers.Our study describes the mechanism of mine water inrushes through a fault in the mine floor using principles of strata mechanics and the path of water inrush from an aquifer to the working face.A criterion to judge whether a ground water inrush will occur through a fault or not is also described, together with a case history of water inflow in the Feicheng coalfield, China. 展开更多
关键词 FAULT water-inrush MECHANISM Feicheng coalfield
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ESTIMATION OF DOPPLER CENTROID FREQUENCY IN SPACEBORNE SCANSAR 被引量:3
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作者 Zou Xiufang Zhang Qunying 《Journal of Electronics(China)》 2008年第6期822-826,共5页
Doppler centroid frequency is an essential parameter in the imaging processing of the Scanning mode Synthetic Aperture Radar (ScanSAR). Inaccurate Doppler centroid frequency will result in ghost images in imaging resu... Doppler centroid frequency is an essential parameter in the imaging processing of the Scanning mode Synthetic Aperture Radar (ScanSAR). Inaccurate Doppler centroid frequency will result in ghost images in imaging result. In this letter, the principle and algorithms of Doppler centroid frequency estimation are introduced. Then the echo data of ScanSAR system is analyzed. Based on the algorithms of energy balancing and correlation Doppler estimator in the estimation of Doppler centroid frequency in strip mode SAR, an improved method for Doppler centroid frequency estimation in ScanSAR is proposed. The method has improved the accuracy of Doppler centroid frequency estimation in ScanSAR by zero padding between burst data. Finally, the proposed method is validated with the processing of ENVIronment SATellite Advanced Synthetic Aperture Radar (ENVISAT ASAR) wide swath raw data. 展开更多
关键词 Spaceborne the Scanning mode Synthetic Aperture Radar (ScanSAR) Doppler centroid frequency Energy balancing Correlation Doppler estimator
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Research of the underground coal bunker clearing robot
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作者 SONG Zhi-an ZHAN Feng +2 位作者 LI Cheng-yin WANG Ze-le ZHANG Shan-lin 《Journal of Coal Science & Engineering(China)》 2010年第1期104-107,共4页
With the long-term use of coal bunker, a certain amount of sticking objects will beformed on its wall, and coal mine clearing robot can replace man in clearing the bunker wall.Also, since it equip with an explosion-pr... With the long-term use of coal bunker, a certain amount of sticking objects will beformed on its wall, and coal mine clearing robot can replace man in clearing the bunker wall.Also, since it equip with an explosion-proof camera, the worker can determine the operationby observing the well-head monitor.Moreover, it cannot work unless it is placed in positionand supported stably, and it has three degrees of freedom: rotating, stretching, and shovelcoal.It is driven by the hydraulic and controlled by PLC.The underground coal mine clearingrobot changs the traditional clearing methods, man does not have to enter the bunker toclear it, which ensures the production safety of coal transportation. 展开更多
关键词 underground coal bunker clearing robot coal bunker coal transport
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Accuracy assessment of mine walls' surface models derived from terrestrial laser scanning 被引量:6
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作者 Nguyen Quoc Long Michal M. Buczek +4 位作者 La Phu Hien Sylwia A. Szlapinska Bui Xuan Nam Nguyen Viet Nghia Cao Xuan Cuong 《International Journal of Coal Science & Technology》 EI 2018年第3期328-338,共11页
The monitoring of highwall slopes at open-pit mines is an important task to ensure safe mining. For this reason, several techniques such as total station, radar, terrestrial Light Detection and Ranging (LIDAR) can b... The monitoring of highwall slopes at open-pit mines is an important task to ensure safe mining. For this reason, several techniques such as total station, radar, terrestrial Light Detection and Ranging (LIDAR) can be employed for surface measurement. The objective of this study is to investigate mesh algorithms, which can be used to interpolate 3D models of pit walls. Experiments were carried out at Coc Sau open-pit mine at Quang Ninh province of Vietnam, and at experimental mine of Akademia Gtrniczo-Hutnicza University of Science and Technology in Cracow, Poland. First, 3D point cloud data for the study area was acquired by using terrestrial LIDAR, then was used to generate mesh surfaces using three algorithms--Delaunay 2.5D XY Plane, Delaunay 2.5D Best Fitting Plane, and Mesh from Points. After that, the results were rectified and optimized. Subsequently, the optimized meshes were used for generation of non-uniform rational basis spline (NURBS) surfaces. Then, the NURBS surface accuracy was assessed. The results showed that the average distance between surface and point cloud was within range of 5.6-5.8 mm with deviation of 6.2-6.8 mm, depending on the used mesh. Additionally, the quality of surfaces depends on the quality of input data set and the algorithm used to generate mesh network, and the accuracy of computed NURBS surfaces fitting into pointset was 4-5 times lower than that of optimized mesh fitting. However, the accuracy of the final product allows determining displacements on the level of centimeters. 展开更多
关键词 Polygon mesh network NURBS surface LIDAR - Open-pit mine Highwall slope
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ANALYSIS OF THE EFFECT OF THE TRUNCATED SCAN PLANE IN TIME-DOMAIN NEAR-FIELD MEASUREMENTS
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作者 Hu Hongfei Gao Xue Fu Demin(National Key Lab. of Antennas and Microwave Technology, Xidian University, Xi’an 710071) 《Journal of Electronics(China)》 2002年第1期89-93,共5页
The thought and formulation for near-field far-field transformation based on the direct time-domain computation scheme are given. The effect of the truncated scan plane is investigated by simulating time-domain measur... The thought and formulation for near-field far-field transformation based on the direct time-domain computation scheme are given. The effect of the truncated scan plane is investigated by simulating time-domain measurement of an open-ended waveguide antenna, and a simple and effective criterion is derived for removing the truncation errors in the practical time-domain near-field measurements. 展开更多
关键词 Near-field measurement TIME-DOMAIN Truncation effect
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妇性的禁区?——论女性与电脑游戏
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作者 生铁 《大众软件》 2001年第7期108-112,共5页
关键词 电脑游戏 RPG游戏 《暗黑破坏神》 《扫雷》
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FasFast Triangulation and Local Optimization for Scan Data of Laser Radar
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作者 石路 杜正春 +1 位作者 姚振强 洪迈生 《Journal of Shanghai Jiaotong university(Science)》 EI 2010年第1期1-5,共5页
In order to study the triangulation for the point cloud data collected by three-dimensional laser radar,in accordance with the line-by-line characteristics of laser radar scanning,an improved Delaunay triangulation me... In order to study the triangulation for the point cloud data collected by three-dimensional laser radar,in accordance with the line-by-line characteristics of laser radar scanning,an improved Delaunay triangulation method is proposed to mesh the point cloud data as a triangulation irregular network.Based on the geometric topology location information among radar point cloud data,focusing on the position relationship between adjacent scanning line of the point data,a preliminary match network is obtained according to their geometric relationship.A reasonable triangulation network for the object surface is acquired after the use of local optimization on initial mesh by Delaunay rule.Meanwhile,a new judging rule is proposed to contrast the triangulation before and after the optimization on the network.The result shows that triangulation for point cloud with full use of its own characteristics can improve the speed of the algorithm obviously,and the rule for judging the triangulation can evaluate the quality of network. 展开更多
关键词 TRIANGULATION local optimization point cloud data laser radar
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