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清代卡伦官兵的坐卡制度解析 被引量:3
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作者 宝音朝克图 《内蒙古大学学报(哲学社会科学版)》 CSSCI 北大核心 2004年第3期56-59,共4页
"卡伦"是清代特有的一种防御设置,官兵被派遣到固定的卡伦驻守执勤称为"坐卡"。清朝政府从各种防御目的出发,在卡伦官兵的坐卡管理方面制定专项条款,要求每位官兵在其坐卡驻守期间必须遵守各项规定,并采取相应的奖... "卡伦"是清代特有的一种防御设置,官兵被派遣到固定的卡伦驻守执勤称为"坐卡"。清朝政府从各种防御目的出发,在卡伦官兵的坐卡管理方面制定专项条款,要求每位官兵在其坐卡驻守期间必须遵守各项规定,并采取相应的奖惩等各项具体、有效的措施,使其逐渐成为一套较为完善的防务管理制度。 展开更多
关键词 清代 官兵坐卡 管理制度
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无卡瓦油管锚的研制与应用 被引量:4
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作者 任立新 孙成金 许军 《石油机械》 北大核心 2004年第6期44-45,共2页
针对喇嘛甸区块油田油管断脱严重 ,而应用卡瓦油管锚防断脱容易对套管造成损伤的实际情况 ,研制了无卡瓦油管锚。该装置包括坐卡机构、解卡机构、锁紧机构和液流通道 4个部分。装有无卡瓦油管锚的抽油机井管柱 ,可以实现对油管柱的锚定 ... 针对喇嘛甸区块油田油管断脱严重 ,而应用卡瓦油管锚防断脱容易对套管造成损伤的实际情况 ,研制了无卡瓦油管锚。该装置包括坐卡机构、解卡机构、锁紧机构和液流通道 4个部分。装有无卡瓦油管锚的抽油机井管柱 ,可以实现对油管柱的锚定 ,克服了疲劳载荷对油管的破坏 ;液流通道的设计 ,可实现洗井和液面测试工作 ;同时具有操作简单、易于起下、正常生产中可减少冲程损失提高泵效等特点。喇嘛甸油田 4 1 2口井的现场应用表明 ,采用无卡瓦油管锚 ,成功地解决了油管断脱问题 ,延长了检泵周期 ,在同一工作制度下泵效平均提高 9 7个百分点 ,已累计创效 2 0 30 2 展开更多
关键词 瓦油管锚 抽油机 管柱 套管 坐卡机构
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论清代呼伦贝尔地区卡伦的设置 被引量:2
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作者 张帅 《边疆经济与文化》 2013年第11期64-65,共2页
清代呼伦贝尔一隅,为国防边疆重地。中俄《尼布楚条约》《布连斯奇界约》划定中俄边界后,呼伦贝尔地区便与俄罗斯接壤。清政府在呼伦贝尔境内设立卡伦,作为执行防守、巡视、驱逐、稽查走私等任务的手段,曾起到了重要的固边作用。本文将... 清代呼伦贝尔一隅,为国防边疆重地。中俄《尼布楚条约》《布连斯奇界约》划定中俄边界后,呼伦贝尔地区便与俄罗斯接壤。清政府在呼伦贝尔境内设立卡伦,作为执行防守、巡视、驱逐、稽查走私等任务的手段,曾起到了重要的固边作用。本文将对清代呼伦贝尔境内卡伦的设置年代及其变迁、坐卡制度,卡伦的职责等做一概述。 展开更多
关键词 呼伦贝尔 清代 坐卡
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清代珲春驻防辖区卡伦探考
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作者 关锐 《满族研究》 2021年第1期43-50,共8页
卡伦作为清代一种特有的军事设施,珲春驻防设置以来,坐卡官兵人数在光绪以前一度占驻防官兵总数的40%左右,始终是珲春防务、边务的重点之一,在清廷维护吉林边境稳定和加强区域管理方面均发挥了重要作用。囿于汉文文献中相关记载的不足,... 卡伦作为清代一种特有的军事设施,珲春驻防设置以来,坐卡官兵人数在光绪以前一度占驻防官兵总数的40%左右,始终是珲春防务、边务的重点之一,在清廷维护吉林边境稳定和加强区域管理方面均发挥了重要作用。囿于汉文文献中相关记载的不足,加之《吉林外纪》、《珲春县志》等史料对珲春境内卡伦的记载存在大量遗漏、错误,以致难以窥其全貌。反之较为详细的记载均来自于满文档案和清代舆图,基于以上文献,对珲春驻防辖区内卡伦的数目、古今位置、语义、设置沿革、管理制度等内容予以考察,兼与前辈学人探讨。 展开更多
关键词 清代 珲春 坐卡制度
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摘挂式架空人车吊座绳卡在大煤公司的应用
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作者 孙发 《机电信息》 2011年第12期71-72,共2页
介绍了一种煤矿井下架空人车用的摘挂式吊坐绳卡装置,并与固定式绳卡作了全面对比分析,并就该绳卡设计的合理性、使用维修的方便性、安全可靠性作了论述。
关键词 架空乘人装置 摘挂式
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清代侍卫新疆史迹考——以《清实录》为中心 被引量:4
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作者 鲁靖康 《北方民族大学学报(哲学社会科学版)》 CSSCI 2014年第4期16-21,共6页
清代往新疆派遣侍卫始于康熙二十一年(1682年),此后历朝相继,延至清末。遣新的侍卫担负着不同的使命和职责,差遣的性质有临时差遣和定期驻守两种。清朝给予遣新侍卫一定的优待,并根据其表现进行奖惩和抚恤。乾隆中期以后,清廷大量使用... 清代往新疆派遣侍卫始于康熙二十一年(1682年),此后历朝相继,延至清末。遣新的侍卫担负着不同的使命和职责,差遣的性质有临时差遣和定期驻守两种。清朝给予遣新侍卫一定的优待,并根据其表现进行奖惩和抚恤。乾隆中期以后,清廷大量使用侍卫充任新疆各地驻防大臣,此举具有一定的合理性和积极意义,但同时也给新疆军政带来了很大的负面效应。 展开更多
关键词 新疆 清代侍卫 坐卡听差 驻防大臣
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三用张力式油管锚在新疆油田的研制与应用
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作者 张勇强 郭文德 +2 位作者 刘国梁 纪拥军 陈燊 《新疆石油科技》 2001年第3期22-24,共3页
为了使用国外引进的Lynes Sentry永久式井下压力计,实现自动化连续采集井下动态数据,彩南油田使用由采油院自行设计的三用张力式油管锚定装置,保证了永久式压力计安全可靠的传输信号.三用张力式油管锚锚定装置在彩南油田应用9口井,解卡1... 为了使用国外引进的Lynes Sentry永久式井下压力计,实现自动化连续采集井下动态数据,彩南油田使用由采油院自行设计的三用张力式油管锚定装置,保证了永久式压力计安全可靠的传输信号.三用张力式油管锚锚定装置在彩南油田应用9口井,解卡15井次.坐卡、解卡成功率为100%。 展开更多
关键词 三用张力式油管锚定装置 新疆油田 坐卡 安全 现场试验
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Localization of Small Mobile Robot by Low-Cost GPS Receiver 被引量:1
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《Journal of Mechanics Engineering and Automation》 2013年第8期522-528,共7页
This article deals with a problem of the robot localization in the outdoor environment by using the GPS (global positioning system) data. In order to navigate the robot, it is necessary to transform the global posit... This article deals with a problem of the robot localization in the outdoor environment by using the GPS (global positioning system) data. In order to navigate the robot, it is necessary to transform the global position into the local map in the form of two-dimensional Cartesian coordinate system. The transformation is based on the model of the Earth-WGS 84 reference ellipsoid. The aim of this article is to experimentally evaluate a set of low-cost GPS receivers applicable as position sensors for small outdoor mobile robots. The evaluation is based on series of measurements executed in different times and places. The measured data is processed by given procedure and acquired positions are transformed into the local coordinate system. Accordingly the accuracy of the measured positions is statistically evaluated. The evaluation of used GPS receivers is done by comparison with data acquired by high-end geodetic GPS system Leica 1200, which is used as a reference GPS system. 展开更多
关键词 LOCALIZATION small mobile robot GNSS (global navigation satellite system) GPS receiver WGS 84 Leica GPS 1200.
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Passive ranging algorithm in terms of polar coordinates 被引量:1
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作者 浦甲伦 崔乃刚 荣思远 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第3期428-430,共3页
For the missile with passive seeker,the improvement of passive ranger's precision is one of the key issues in development of the defense penetrate strategy. On the offensive warheads,the infrared imaging device wa... For the missile with passive seeker,the improvement of passive ranger's precision is one of the key issues in development of the defense penetrate strategy. On the offensive warheads,the infrared imaging device was used to measure the line-of-sight angle information of the blocker,and then using the algorithm of Kalman Filter under polar coordinates,the distance from the blocker to the warheads was obtained. The simulation result under polar coordinates was compared with that of Cartesian coordinate. The validity of the method was analyzed,and the schemes of improvement were brought out. 展开更多
关键词 KF passive ranging polar coordinate
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Introduction of T-DNA into Watermelon by Stigma Smeared Method and Its Molecular Marker Research
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作者 MA Shuang-wu BAO Wen-feng +2 位作者 WANG Ji-ming SHANG Jian-li WANG Xiao-jun 《Agricultural Science & Technology》 CAS 2011年第1期77-79,共3页
[Objective]The aim was to introduce T-DNA into watermelon for its molecular marker research.[Method]Based on the method of foreign DNA introduced to Arabidopsis thaliana via dipping flowers,the stigma smear was used t... [Objective]The aim was to introduce T-DNA into watermelon for its molecular marker research.[Method]Based on the method of foreign DNA introduced to Arabidopsis thaliana via dipping flowers,the stigma smear was used to transfer T-DNA into watermelon and its molecular marker research was carried out.[Result]The ideal transformed species was ZXG01078 for the highest fruit setting rate and the most deviant seedlings.The best concentration of kanamycin for treating watermelon seeds was 500-700 mg/L with differences among the species.The best position was spire leaf or young leaf and the best concentration of kanamycin for treating the watermelon leaf was 4 000-8 000 mg/L with no significant difference among species.The steadily variation appearing of growing pointless and conjoined twin seedlings indicated that the normal growth had been interfered by foreign DNA in the progeny.[Conclusion]This study had provided basis for the further research on watermelon. 展开更多
关键词 WATERMELON Stigma smeared T-DNA introduced Molecular marker
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Tracking with nonlinear measurement model by coordinate rotation transformation 被引量:4
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作者 ZENG Tao LI Chun Xia +1 位作者 LIU Quan Hua CHEN Xin Liang 《Science China(Technological Sciences)》 SCIE EI CAS 2014年第12期2396-2406,共11页
A new filtering method is proposed to accurately estimate target state via decreasing the nonlinearity between radar polar measurements(or spherical measurements in three-dimensional(3D) radar) and target position in ... A new filtering method is proposed to accurately estimate target state via decreasing the nonlinearity between radar polar measurements(or spherical measurements in three-dimensional(3D) radar) and target position in Cartesian coordinate. The degree of linearity is quantified here by utilizing correlation coefficient and Taylor series expansion. With the proposed method, the original measurements are converted from polar or spherical coordinate to a carefully chosen Cartesian coordinate system that is obtained by coordinate rotation transformation to maximize the linearity degree of the conversion function from polar/spherical to Cartesian coordinate. Then the target state is filtered along each axis of the chosen Cartesian coordinate. This method is compared with extended Kalman filter(EKF), Converted Measurement Kalman filter(CMKF), unscented Kalman filter(UKF) as well as Decoupled Converted Measurement Kalman filter(DECMKF). This new method provides highly accurate position and velocity with consistent estimation. 展开更多
关键词 target tracking Kalman filtering nonlinear filtering decoupled NONLINEARITY
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