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领导圈阅制度的由来
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作者 黄军 《办公室业务》 1999年第5期30-30,共1页
1948年2月,毛泽东亲自主持拟制了《中共中央关于土地改革中各阶级的划分及其待遇的规定》,随即让新华社电台拍发全国各中央局、中央分局,要求各地认真讨论,并将意见迅速汇报中央。此后,毛泽东就等候着各地的反映。 3月里的一天,毛泽东... 1948年2月,毛泽东亲自主持拟制了《中共中央关于土地改革中各阶级的划分及其待遇的规定》,随即让新华社电台拍发全国各中央局、中央分局,要求各地认真讨论,并将意见迅速汇报中央。此后,毛泽东就等候着各地的反映。 3月里的一天,毛泽东突然问起东北方面调查土改和讨论规定的材料来了没有。担任秘书的胡乔木告诉他说早就来了。毛泽东追问道:“ 展开更多
关键词 毛泽东 胡乔木 中央分局 制度 中共中央 中央局 东北方 叶子 新华社
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对西德Barmag涤纶长丝加弹机导丝胶圈的吸收消化
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作者 高锦瑞 《纺织器材》 1989年第2期6-8,共3页
本文主要通过对西德巴马格纺涤纶长丝高速加弹机导丝胶圈在接压机构上所受应力的分析,完成了引进导丝胶圈的吸收消化,并对导丝胶圈的研制作了简要的评述。
关键词 丝胶 加弹机 涤纶长丝
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圈住目标 圈出绩效
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作者 赵俊华 虞子军 张文静 《企业管理》 北大核心 2015年第1期87-91,共5页
绩效管理圈方式相较于常规业绩目标执行方式而言,就是通过年度目标的分解,建立分解式的绩效管理圈,使得目标更加聚焦,资源更加聚焦,行动更加聚焦。
关键词 绩效管理 圈导
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滚子轴承套圈滚道的超精加工方法
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作者 赵均红 《磨床与磨削》 北大核心 1998年第3期60-62,59,共4页
关键词 滚子轴承 滚道 超精加工 磨削 油石
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磁耦合谐振式无线电能传输电动汽车充电系统研究 被引量:33
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作者 卢闻州 沈锦飞 方楚良 《电机与控制学报》 EI CSCD 北大核心 2016年第9期46-53,共8页
为研究电动汽车无线充电系统,解决电动汽车有线充电时的不安全、不便利问题,采用磁耦合谐振式无线电能传输技术,从改进传输线圈结构出发,在传输线圈外侧增加导磁体,将磁通尽可能束缚在两传输线圈之间,减小向外界的泄漏,缩短磁通在空气... 为研究电动汽车无线充电系统,解决电动汽车有线充电时的不安全、不便利问题,采用磁耦合谐振式无线电能传输技术,从改进传输线圈结构出发,在传输线圈外侧增加导磁体,将磁通尽可能束缚在两传输线圈之间,减小向外界的泄漏,缩短磁通在空气中的磁路长度,从而有效增强无线电能传输系统的耦合程度,大大增加传输功率,提高低频条件下的传输距离和效率。设计了具有频率自动跟踪控制的12 k W/70 k Hz高效磁耦合谐振式电动汽车无线充电系统,并进行实验研究,得到一系列传输线圈距离和负载阻抗、传输功率及传输效率之间关系的实验数据。特别地,实验结果表明在传输距离0.3 m、输入功率12.6 k W时,谐振频率为72.6 k Hz,传输效率达到94.33%。 展开更多
关键词 电动汽车充电 无线电能传输 传输线圈导磁结构 互感模型 磁耦合串联谐振
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Transcatheter closure of coronary artery fistula using Guglielmi detachable coil 被引量:8
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作者 Muhammad Munawar Bambang B. Siswanto +1 位作者 Ganesha M. Harimurti Thach N. Nguyen 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2012年第1期11-16,共6页
Background Coronary artery fistula (CAF) is a rare anomaly.Transcatheter CAF closure has been introduced using various materials,but only few data are available on the Guglielmi detachable coil (GDC).The advantage... Background Coronary artery fistula (CAF) is a rare anomaly.Transcatheter CAF closure has been introduced using various materials,but only few data are available on the Guglielmi detachable coil (GDC).The advantage of using GDC for transcatheter CAF closure is more controllable,therefore much safer when compared to other coils.This report is about our experience in transcatheter closure of CAF using fibered GDC in our hospital.Methods & Results From 2002 to 2007,there were 10 patients with CAFs (age range:28 to 56 year-old,7 males) who underwent transcatheter CAF closure.There were a total of 19 CAFs which originated from right coronary (n =5),left circumflex (n =3),left anterior descending artery (n =10) and left main trunk (n =1).Median number of coil deployment for each fistula was 3 (range:1 to 6).The pulmonary artery was the most common site of the distal communication of CAFs (n =14),followed by right atrium (n =3),left atrium (n =1) and left ventricle (n =1).Immediate coronary angiography after GDC deployment revealed no residual shunt in 12 (63.2%) CAFs,significant reduction of the flow in 5 (26.3%),while 2 (10.5%) could not be closed due to small size.Nine (90%) patients underwent a repeated angiography within 3 to 8 months.Among 12 CAFs that were occluded immediately post-deployment,there were 2 CAFs with insignificant residual flow.Among 6 CAFs with significantly decreased flow immediately post-deployment,2 were occluded totally in the follow-up angiography.In total,12 (70.5%) CAFs were occluded completely and 5 (29.5%) CAFs still had insignificant residual flow,which did not need any additional coil deployment.During a mean follow up of 4.3 ± 0.7 year,all patients remained symptom and complication free.Conclusions The fibered GDC is a safe and effective method for percutaneous closure of the CAFs. 展开更多
关键词 Coronary artery fistula Transcatheter closure Guglielmi detachable coil
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一种改进的试样复摇车
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作者 曹亚春 柳德康 +3 位作者 徐福华 戴琦兴 许逊 陈如荣 《纺织学报》 EI CAS 1986年第5期45-46,共2页
蚕茧的解舒测长一般是用检尺器百回百回地摇取或在复摇车上安装拉动式机械计数器进行的。从工作效率上讲,后者比前者有了进步,但一名复摇工只能看一窗,而且眼睛一直得看住五片绪丝,由于眼睛的疲劳和人的大脑对于简单重复劳动的不适应性... 蚕茧的解舒测长一般是用检尺器百回百回地摇取或在复摇车上安装拉动式机械计数器进行的。从工作效率上讲,后者比前者有了进步,但一名复摇工只能看一窗,而且眼睛一直得看住五片绪丝,由于眼睛的疲劳和人的大脑对于简单重复劳动的不适应性,绪丝切断后不能及时发现的概率就比较大。 展开更多
关键词 解舒 蚕茧 鼓轮 复摇
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Experimental Verification to Estimate Ground Thermal Conductivity Using Spiral Coil Type Ground Heat Exchangers
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作者 Seok Yoon Min Jun Kim Gyu Hyun Go Seung Rae Lee 《Journal of Civil Engineering and Architecture》 2014年第4期425-429,共5页
This paper presents an experimental study on the evaluation of thermal response of a spiral coil type GHE (ground heat exchanger). This GHE was installed on partially saturated landfill ground that was composed of s... This paper presents an experimental study on the evaluation of thermal response of a spiral coil type GHE (ground heat exchanger). This GHE was installed on partially saturated landfill ground that was composed of silt and clay in the runway area of Incheon International airport. TRT (thermal response test) was conducted for more than 65 hours under continuous operation conditions. Ground thermal conductivity was derived based on line source theory, which has usually been found to be appropriate for line type GHEs such as U, W and 2U types. A reasonable method to derive ground thermal conductivity using the infinite line source theory for a spiral coil type GHE was introduced. Ground thermal conductivity from the TRT using spiral coil type GHE was compared with those from the analytical equivalent model of ground thermal conductivity. 展开更多
关键词 Ground thermal conductivity ground heat exchanger thermal response test spiral coil.
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中国进入G20核心领导圈
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《财新周刊》 2015年第26期30-31,共2页
2008年全球金融危机迄今已经过去七个年头。二十国集团(G20)2008年升格为峰会机制,已从主要应对危机转入长期经济治理,成为“全球经济治理的首要平台”。世界经济形势的变化和G20职能的转换叠加,全球治理体系在重压下“裂缝”加深... 2008年全球金融危机迄今已经过去七个年头。二十国集团(G20)2008年升格为峰会机制,已从主要应对危机转入长期经济治理,成为“全球经济治理的首要平台”。世界经济形势的变化和G20职能的转换叠加,全球治理体系在重压下“裂缝”加深加大,“同舟共济”沦为“同舟共挤”,这在近几年G20峰会中表现尤为明显。 展开更多
关键词 G20 中国 治理体系 全球经济 金融危机 经济形势
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中小企业板块一周行情表
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《股市动态分析》 2005年第15期95-95,共1页
关键词 行情表 小企业 虽国 非圆 引别 中小企业 引剑 减目 泌胶
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地铁车辆空调机组降噪试验研究
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作者 齐玉文 王森林 +1 位作者 孟胜军 金甜甜 《铁道车辆》 2022年第4期78-80,共3页
分析了地铁车辆空调机组噪声的产生原因,针对性地研究了吸音蜗壳、吸音导流圈对于地铁车辆空调机组噪声的影响,结果表明,吸音蜗壳对于降低地铁车辆空调机组内离心风机的噪声有良好效果,吸音导流圈对于地铁车辆空调机组内轴流风机无降噪... 分析了地铁车辆空调机组噪声的产生原因,针对性地研究了吸音蜗壳、吸音导流圈对于地铁车辆空调机组噪声的影响,结果表明,吸音蜗壳对于降低地铁车辆空调机组内离心风机的噪声有良好效果,吸音导流圈对于地铁车辆空调机组内轴流风机无降噪作用。 展开更多
关键词 地铁车辆空调 降噪研究 吸音蜗壳 吸音
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Typical application of Rogowski coils in inspection of electrobath
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作者 郭红 贾正春 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2004年第1期103-108,共6页
During the aluminum electrolytic roasting process,each component of the electrobath of aluminum performs unsteadily when the electrolytic bath is in the pre-roasting stage. It is important to monitor the currents of t... During the aluminum electrolytic roasting process,each component of the electrobath of aluminum performs unsteadily when the electrolytic bath is in the pre-roasting stage. It is important to monitor the currents of the anodes and the cathodes of the aluminum electrobath at regular intervals. Both practice and investigation indicate that Rogowski coil can be adopted to measure heavy direct current of the anodes and the cathodes of the aluminum electrobath. The paper not only introduces the typical application of the Rogowski coil to inspect the state of aluminum electrobath in the roasting process, but also analyzes the principles of the coil sensor including its dynamic properties and some important measurement results respectively. The optimal parameters of the coil can be simulated by means of an advanced simulation tool: simulink tools based on MATLAB soft environment. Based on the gathered current data, an even-current coefficient has been introduced, and the current curve can be drawn. Since they are applied in AL-Electrolyzing, it is possible to distinguish the anode of which the current is not evenly distributed, and to take adjusting measures over a period of time to ensure that the current is evenly distributed. 展开更多
关键词 rogowski coil current monitoring system simulation even current distribution dilapidation detection
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专利集锦(4)
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作者 王元荪 《现代丝绸科学与技术》 2014年第2期73-73,共1页
专利名称:用于蚕茧的制丝装置专利申请号:CN201210252015.8公开号:CN102787371A申请日:2012.07.20公开日:2012.11.21申请人:崔丽荣一种用于蚕茧的制丝装置,包含有成行成列地分布设置在地支架上的水槽、设置在水槽中并可以在水槽中上下... 专利名称:用于蚕茧的制丝装置专利申请号:CN201210252015.8公开号:CN102787371A申请日:2012.07.20公开日:2012.11.21申请人:崔丽荣一种用于蚕茧的制丝装置,包含有成行成列地分布设置在地支架上的水槽、设置在水槽中并可以在水槽中上下移动的托盘、与水槽联接的注水装置、设置在上支架上并可以与水槽密封联接的上盖、在上盖上设置有与负压装置连通的吸管、设置在中支架上用于吸取蚕茧的吸附装置。 展开更多
关键词 制丝 负压装置 中支架 申请日 索绪机构 吸附装置 生丝质量 自动缫丝机 丝钩
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A Study on Ship Deperming Coil System Using High Temperature Superconducting Cable Technology 被引量:1
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作者 Megumi Hirota 《Journal of Shipping and Ocean Engineering》 2017年第3期93-99,共7页
Naval ship deperming is effective to reduce the potential damage from sea mines some of which sense magnetic field of the ship, and thus, is an important treatment of naval ships in the recent world. Large electric cu... Naval ship deperming is effective to reduce the potential damage from sea mines some of which sense magnetic field of the ship, and thus, is an important treatment of naval ships in the recent world. Large electric current is required to impose the magnetic field on the ship hull, which in turn means that the deperming coil needs to be wound on ship hull when the coil is composed of conventional conductive materials, such as copper. We considered a few HTS (high temperature superconducting) coil systems to deperm naval ships because we expect the shorter deperming time and lower manual workload for ship deperming operation, compared conventional conductor coil systems. We have in the past presented a solution using a fiat two-coil system arranged on seabed with tightly bound HTS conductor by analytical calculation of magnetic field on the conductor. By considering present and already developed technologies, a conductor with cylindrically wound on the core arranged as fiat multi-turn coils on seabed was designed using analytical methods. 展开更多
关键词 Deperming seamine SHIP MAGNETIC SUPERCONDUCTING CABLE
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Optimal Design for Open MRI Superconducting Magnet with Active Shielding 被引量:1
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作者 王春忠 王秋良 +2 位作者 李兰凯 荣明 周又元 《Journal of Measurement Science and Instrumentation》 CAS 2010年第2期178-182,共5页
The optimal design method for an open Magnetic Resonance Imaging (MRI) superconducting magnet with an active shielding configuration is proposed. Firstly, three pairs of current rings are employed as seed coils. By ... The optimal design method for an open Magnetic Resonance Imaging (MRI) superconducting magnet with an active shielding configuration is proposed. Firstly, three pairs of current rings are employed as seed coils. By optimizing the homogeneity of Diameter Sphere Voltnne (DSV), the positions and currents of the seed coils will be obtained. Secondly, according to the positions and currents of the seed coils, the current density of superconducting wires is determined, and then the original sections for the coils can be achieved. An optimization for the homogeneity based on the constrained nonlincar optimization method is employed to determine the coils with good homogeneity. Thirdly, the magnetic field generated by previous coils is set as the background field, then add two coils with reverse current, and optimize the stray field line of 5 Gauss in a certain scope. Finally, a further optimization for the homogeneity is used to get Final coils. This method can also be used in the design of other axisynmaetfic superconducting MRI magnets. 展开更多
关键词 MRI superconducting magnet nonlinear least square optimization
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Modeling of Earth Magnetic Field Disturbances Induced by Ferromagnetic Objects
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作者 Michal Nowicki Roman Szewczyk 《Journal of Mechanics Engineering and Automation》 2015年第7期411-414,共4页
This paper presents the methodology and results of modelling of Earth magnetic field disturbances induced by ferromagnetic objects. The modeling was carried out using the finite elements calculations, and the results ... This paper presents the methodology and results of modelling of Earth magnetic field disturbances induced by ferromagnetic objects. The modeling was carried out using the finite elements calculations, and the results were compared with the measurements. The special test stand, consisting of magnetovision scanner and Helmholtz coils, has been used. The measurement system is able to measure the distribution of planar magnetic induction vectors, and to differentiate the sources of measured disturbances. 展开更多
关键词 Magnetovision magnetic anomalies FEM (finite element method)
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The genesis of tectono-magmatism in eastern China 被引量:15
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作者 WAN TianFeng ZHAO QingLe 《Science China Earth Sciences》 SCIE EI CAS 2012年第3期347-354,共8页
The tectono-magmatism in eastern China is a hotspot for the researches, and many hypotheses of that were discussed. There is a middle crust with solid, low velocity and high conductivity in eastern China, which is imp... The tectono-magmatism in eastern China is a hotspot for the researches, and many hypotheses of that were discussed. There is a middle crust with solid, low velocity and high conductivity in eastern China, which is impossible to form"convection magmatic layer". The subduction and compression of oceanic plate induced to the lateral pressure for the eastern China lithosphere in the condition of increasing pressure and decreasing temperature, it is also impossible to form an extensively melting magma layer. In South China, the granitic zone migrates from west to east, their evolution cannot be explained by plate subduction. The original magmatic reservoirs are controlled by main faults and spheres, which occurred the tectonic detachment and formed in the process of decreasing pressure and increasing temperature. The magma only originates in very small part of lithosphere. The tectono-magmatism and tectonic detachment of eastern China lithosphere during the Jurassic and the Cretaceous are concentrate mainly near the intersections between the regional faults and middle crust or the Moho discontinuity, and then magma intrudes or erupts along faults. The tectono-magmatism of Cenozoic originates near the intersections between the regional high-angle normal faults and the bottom of lithosphere. Obviously, the different penetration depth of faults induces a different kind of magmatism. 展开更多
关键词 TECTONO-MAGMATISM GENESIS migration of magmatic zone tectonic detachment decreasing pressure and increasingtemperature
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Magnetically induced micropillar arrays for an ultrasensitive flexible sensor with a wireless recharging system 被引量:3
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作者 Libo Gao Ying Han +9 位作者 James Utama Surjadi Ke Cao Wenzhao Zhou Hongcheng Xu Xinkang Hu Mingzhi Wang Kangqi Fan Yuejiao Wang Weidong Wang Horacio D.Espinosa 《Science China Materials》 SCIE EI CAS CSCD 2021年第8期1977-1988,共12页
Significant efforts have been devoted to enhancing the sensitivity and working range of flexible pressure sensors to improve the precise measurement of subtle variations in pressure over a wide detection spectrum. How... Significant efforts have been devoted to enhancing the sensitivity and working range of flexible pressure sensors to improve the precise measurement of subtle variations in pressure over a wide detection spectrum. However,achieving sensitivities exceeding 1000 kPa^(-1) while maintaining a pressure working range over 100 kPa is still challenging because of the limited intrinsic properties of soft matrix materials. Here, we report a magnetic field-induced porous elastomer with micropillar arrays(MPAs) as sensing materials and a well-patterned nickel fabric as an electrode. The developed sensor exhibits an ultrahigh sensitivity of 10,268 kPa^(-1)(0.6–170 kPa) with a minimum detection pressure of 0.25 Pa and a fast response time of 3 ms because of the unique structure of the MPAs and the textured morphology of the electrode. The porous elastomer provides an extended working range of up to 500 kPa with long-time durability. The sophisticated sensor system coupled with an integrated wireless recharging system comprising a flexible supercapacitor and inductive coils for transmission achieves excellent performance. Thus, a diverse range of practical applications requiring a low-to-high pressure range sensing can be developed. Our strategy, which combines a microstructured high-performance sensor device with a wireless recharging system, provides a basis for creating next-generation flexible electronics. 展开更多
关键词 high sensitivity pressure sensor SUPERCAPACITOR wireless recharging flexible electronics
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晚年傅聪,抱病、乐观、奋进
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作者 顾育豹 《音乐天地》 2001年第3期23-23,共1页
晚年傅聪,值得一书。 去年金秋,从伟大的钢琴家肖邦的故乡传来了一个令人感到陶醉和自豪的消息——李云迪,一位年仅18岁的中国青年钢琴家,在第14届肖邦国际钢琴比赛中获得了第一名。
关键词 钢琴家 中国人参 肖邦 比赛中 中国青年 疾病缠身 终审 能手
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