期刊文献+
共找到13篇文章
< 1 >
每页显示 20 50 100
移动式液力提闸机在天津市中小水闸中的应用
1
作者 罗智能 王明玺 赵世敏 《海河水利》 2019年第1期54-55,共2页
天津市现有水闸3 159座,小型水闸占水闸总数的98%,绝大多数为手动启闭。移动式液力提闸机在没有电源的情况下代替人力快速启闭闸门,具有机动灵活、安装使用简便、省时、省力、省工、效率高的特点,可以替代手动提闸和电动提闸,快速完成... 天津市现有水闸3 159座,小型水闸占水闸总数的98%,绝大多数为手动启闭。移动式液力提闸机在没有电源的情况下代替人力快速启闭闸门,具有机动灵活、安装使用简便、省时、省力、省工、效率高的特点,可以替代手动提闸和电动提闸,快速完成提闸或者闭闸任务,在工程管理中具有较好的应用前景。 展开更多
关键词 移动式 液力提闸 中小水 启闭门效率
下载PDF
河道引水工程冬季提闸泄水破冰方法浅谈
2
作者 宋和平 卢爱国 赛灵鹰 《西部探矿工程》 CAS 2003年第5期117-117,共1页
介绍新疆奎屯河流域奎屯河、古尔图河、四棵树河的泄水闸门 ,在冬春季节遇到冰洪、春汛 。
关键词 河道 引水工程 冬季 破冰 提闸 泄水
下载PDF
对集体强行提闸放水行为的分析和预防处理
3
作者 朱永利 《新疆水利》 2007年第6期32-33,共2页
本文通过对强行提闸行为的性质、特点进行分析,指出强行提闸行为是一种水事违法行为,并结合实际提出了具有可操作性的预防和处理措施,对同类案件的处理具有一定的借鉴作用。
关键词 强行提闸 纠纷 预防 处理措施
下载PDF
直流电在簸箕李引黄灌区闸门启闭中的应用
4
作者 刘香坤 付铁军 《山东工业技术》 2018年第6期162-163,共2页
簸箕李引黄灌区位于山东省北部,黄河下游左岸,黄河三角洲高效生态经济区腹地,国家新增千亿吨粮食产能区规划的重要区域。是国家大(1)型灌区。灌区现涉及滨州市惠民、阳信、无棣和德州市庆云县的23个乡镇,控制版图面积2243Km^2,设计灌溉... 簸箕李引黄灌区位于山东省北部,黄河下游左岸,黄河三角洲高效生态经济区腹地,国家新增千亿吨粮食产能区规划的重要区域。是国家大(1)型灌区。灌区现涉及滨州市惠民、阳信、无棣和德州市庆云县的23个乡镇,控制版图面积2243Km^2,设计灌溉面积163.5万亩。灌区有干级渠道3条,总长161.313km,支渠144条,总长927.5km。斗农渠941条,总长2003km。灌区自2005年实施节水改造以来,已实施12期国家投资计划,批复投资3.59亿元,干渠衬砌62.39km及新建、改造沿渠桥、涵、闸等259座。 展开更多
关键词 门启闭机 固定式直流电启闭系统 便携式
下载PDF
“咱庄户人爱看这样的戏”——大厂评剧团演出《水墙》侧记
5
作者 王洪波 《大舞台》 北大核心 1996年第1期16-16,共1页
12月15日,对北京通县胡各庄乡的农民来说,是个节日。河北省大厂评剧团在这里演出的现代评剧《水墙》,吸引了附近四村八乡的农民。
关键词 评剧团 水墙 庄户人 大厂 农民观 提闸 县长 久旱 通县 汛情
下载PDF
赵德平又写出一部好戏
6
作者 李江 《大舞台》 北大核心 1996年第1期14-15,共2页
赵德平写的戏,老百姓爱看。《水墙》又是一出老百姓爱看的好戏。 剧情简简单单,明明白白:于家庄夏日奇旱,村民求雨心切。时逢天气转旱为雨,雨量骤增,县长周国良不许提闸放水,及至暴雨成灾,酿成祸端。面对百姓忿怨,周县长屈膝下跪,向村... 赵德平写的戏,老百姓爱看。《水墙》又是一出老百姓爱看的好戏。 剧情简简单单,明明白白:于家庄夏日奇旱,村民求雨心切。时逢天气转旱为雨,雨量骤增,县长周国良不许提闸放水,及至暴雨成灾,酿成祸端。面对百姓忿怨,周县长屈膝下跪,向村民请罪,一场箭在弦上、倾刻就将爆发的官民冲突终得以平息。 展开更多
关键词 水墙 县长 评剧 提闸 剧情 观众 戏境 愣头青 清官戏 包公戏
下载PDF
鼠年开门红 增存四千万
7
作者 甘延芳 《新疆金融》 1996年第5期21-21,共1页
去年8月成立的乌鲁木齐市建设银行营业部,到年底仅4个月的时间存款余额就达到1.44亿元。近日,这个营业部又传出一个振奋人心的消息:截止2月底,各项存款新增4,000多万元,
关键词 服务质量 银行营业部 乌鲁木齐市 存款余额 超额完成 提闸 建行 主体
下载PDF
Calculation Method for Effect of Silt Sediment on Lifting Force of Hydraulic Gate 被引量:1
8
作者 高仕赵 徐国宾 王明斌 《Transactions of Tianjin University》 EI CAS 2015年第1期50-55,共6页
In this paper, silt sediment is considered to be Bingham body, which is made up of coarse and fine particles in front of a hydraulic gate. The coarse and fine particles provide friction and shear stress in the course ... In this paper, silt sediment is considered to be Bingham body, which is made up of coarse and fine particles in front of a hydraulic gate. The coarse and fine particles provide friction and shear stress in the course of opening the gate. They constitute together the adhesion force of the sediment. Based on this viewpoint, this paper puts forward a formula for the effect of silt sediment on the lifting force. The formula includes gate weight, down-suction force, sealing rubber friction, plus-weight, water-column pressure, plus-silted-sediment weight and rolling(or sliding)-bearing friction. Finally, the verification results show that the formula has certain reliability and the calculation accuracy can meet the need of practical engineering. 展开更多
关键词 radial steel gate plane steel gate lifting force silt sediment Bingham body
下载PDF
Research on the variable speed system of large power alternating current motor 被引量:1
9
作者 Li Chongjian 《Engineering Sciences》 EI 2012年第1期30-37,共8页
The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and s... The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and some innovations on the theory and engineering technique have been realized.They have been applied to rolling mills,mine hoists,and so on,and remarkable economic and social benefit has been achieved.The development of AC drive fed by large power IGCT(integrated gate commutated thyristors)AC-DC-AC converter is also introduced.It has excellent performance and reliable operation,and has been used in traction. 展开更多
关键词 large power AC motor CYCLOCONVERTER AC-DC-AC converter IGCT
下载PDF
COMPARISON OF NO-LINE MONITORING AND FAULT DIAGNOSIS FOR HOISTER BRAKE SYSTEM
10
作者 任芳 杨兆建 王世文 《Journal of Coal Science & Engineering(China)》 1999年第2期73-76,共4页
This paper puts forward the LPM fault diagnosis method in the view of the important purpose of on-line monitoring and fault diagnosis for hoister brake system. The feasibility of the two diagnosis methods are proved i... This paper puts forward the LPM fault diagnosis method in the view of the important purpose of on-line monitoring and fault diagnosis for hoister brake system. The feasibility of the two diagnosis methods are proved in theories; two methods are proved about feasibility and reliability through testing. Two methods are manifestoed that they can undertake the on-line monitoring and fault diagnosis for hoister brake system with satisfied effect. 展开更多
关键词 brake system fault diagnosis on-line monitoring
全文增补中
解决闸门启闭及污水截流设施的问题有新方法
11
作者 朱景黝 《给水排水动态》 1995年第1期60-61,共2页
城市下水道出口闸门启闭对市政工人的操作是个难以管理好的繁重工作,雨时长短无法预知,只能是雨时提闸、雨停闭闸、再雨时再提,再停再闭,其艰苦程度。
关键词 门启闭 设施 污水截流 新方法 问题 解决 城市下水道 工作 提闸 管理
原文传递
水 墙
12
作者 赵德平 张世昆 《剧本》 北大核心 1996年第1期45-61,共17页
水墙赵德平,张世昆人物表周国良──男,46岁,春阳县县长。张云霞──女,42岁,小学教师,周国良妻。周小光──男,18岁,待业青年,周国良之子。于金牛──男,35岁,于家庄村养鱼专业户。于老太──女,60多岁,于金牛... 水墙赵德平,张世昆人物表周国良──男,46岁,春阳县县长。张云霞──女,42岁,小学教师,周国良妻。周小光──男,18岁,待业青年,周国良之子。于金牛──男,35岁,于家庄村养鱼专业户。于老太──女,60多岁,于金牛之母。于村长──男,50多岁,于家... 展开更多
关键词 表演区 县长 县政府 马青 提闸 乡亲 办公室主任 山洪暴发 政治素质 跳入水中
原文传递
Real-time monitoring of brake shoe keys in freight cars 被引量:3
13
作者 Rong ZOU Zhen-ying XU +1 位作者 Jin-yang LI Fu-qiang ZHOU 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2015年第3期191-204,共14页
Condition monitoring ensures the safety of freight railroad operations. With the development of machine vision technology, visual inspection has become a principal means of condition monitoring. The brake shoe key (... Condition monitoring ensures the safety of freight railroad operations. With the development of machine vision technology, visual inspection has become a principal means of condition monitoring. The brake shoe key (BSK) is an important component in the brake system, and its absence will lead to serious accidents. This paper presents a novel method for automated visual inspection of the BSK condition in freight cars. BSK images are first acquired by hardware devices. The subsequent in- spection process is divided into three stages: first, the region-of-interest (ROI) is segmented from the source image by an im- proved spatial pyramid matching scheme based on multi-scale census transform (MSCT). To localize the BSK in the ROI, cen- sus transform (CT) on gradient images is developed in the second stage. Then gradient encoding histogram (GEH) features and linear support vector machines (SVMs) are used to generate a BSK localization classifier. In the last stage, a condition classifier is trained by SVM, but the features are extracted from gray images. Finally, the ROI, BSK localization, and condition classifiers are cascaded to realize a completely automated inspection system. Experimental results show that the system achieves a correct inspection rate of 99.2% and a speed of 5 frames/s, which represents a good real-time performance and high recognition accuracy. 展开更多
关键词 Condition monitoring Feature expression Brake shoe key Machine vision
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部