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《海洋工程》一九八九年第七卷目录索引
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《海洋工程》 CSCD 北大核心 1989年第4期98-99,共2页
关键词 海洋工程 目录索引 一九 自升式钻井平台 地震危险性分析 椭圆余弦波 资料浮标 海洋石油平台 范运 启民
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把金融改革推上新的台阶——祝贺《邓小平文选》第三卷发行和中国共产党十四届三中全会召开
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《西南金融》 1993年第12期3-3,共1页
巴蜀的初冬,晴暖如春。我们以充满喜悦的心情,迎来了《邓小平文选》第三卷发行和中共十四届三中全会召开。伟大的理论思维,指导产生伟大的社会实践。回顾过去十五年来,邓小平同志作为我国社会主义改革开放和现代化建设的总设计师,创立... 巴蜀的初冬,晴暖如春。我们以充满喜悦的心情,迎来了《邓小平文选》第三卷发行和中共十四届三中全会召开。伟大的理论思维,指导产生伟大的社会实践。回顾过去十五年来,邓小平同志作为我国社会主义改革开放和现代化建设的总设计师,创立了建设有中国特色社会主义的理论,使我国稳步走上了社会主义现代化建设的正确道路,取得了举世瞩目的伟大成就。《邓小平文选》第三卷。 展开更多
关键词 《邓小平文选》 现代化建设 社会主义改革 中国特色 继续前进 玄点 外汇管理体制 上丁 社会主义市场 范运
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深入开展“讲、比”竞赛活动 创建绿色低碳智慧港口
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《科技创新与品牌》 2014年第10期26-27,共2页
连云港港口集团有限公司是一个主要从事货物装卸堆存、现代综合物流、港口投资建设、临港产业发展等业务的大型国有港口企业。目前集团在职职工12000多人,其中科技人员2900名,科协会员人数已达到2346人。近几年来,港口集团科协密围绕科... 连云港港口集团有限公司是一个主要从事货物装卸堆存、现代综合物流、港口投资建设、临港产业发展等业务的大型国有港口企业。目前集团在职职工12000多人,其中科技人员2900名,科协会员人数已达到2346人。近几年来,港口集团科协密围绕科技兴港主题,牢固树立科学发展、创新发展理念,结合自身的工作实际,充分发挥科协组织的自身优势,积极探索“讲理想、比贡献”活动的新方法、新途径,突出重点,规范运作,最大限度地调动科技人员的积极性和创造性,使“讲、比”竞赛活动不断抓深、抓实,为绿色低碳港口建设和港口转型升级起到了积极的推动作用,“讲、比”竞赛活动取得了一定的成效。 展开更多
关键词 临港产业发展 货物装卸 会员人数 综合物流 在职职工 生态环境 科技政策 范运 行业标准 内性
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*ST博元退市“为难”上交所
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作者 熊锦秋 《董事会》 2016年第2期18-19,共2页
交易所做出终止上市的决定并实施后,也可能最终归为无效,上市公司可以复活、重新上市。又或者,交易所认为*ST博元经过整改符合恢复上市条件,在移送公安机关之后的一年内让其恢复上市,但此后司法机关又判决*ST博元有罪、又应退市,这严... 交易所做出终止上市的决定并实施后,也可能最终归为无效,上市公司可以复活、重新上市。又或者,交易所认为*ST博元经过整改符合恢复上市条件,在移送公安机关之后的一年内让其恢复上市,但此后司法机关又判决*ST博元有罪、又应退市,这严重影响上市、退市的严肃性。 展开更多
关键词 ST 元经 上市条件 司法机关 暂停上市 股市运行 范运 风险警示 起诉决定 上市资格
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“含氨基酸水溶肥料”在番茄上的肥效试验报告
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作者 郭现民 《河南农业》 2014年第15期25-25,共1页
按照《肥料效应鉴定田间试验技术规程》(NY/T497~2002)的要求,为验证"含氨基酸水溶肥料"在河南省番茄生产上的应用效果并为其推广提供科学依据,特安排本试验。
关键词 水溶肥料 耕层土壤养分 范运 番茄生产 肥料效应 肥效试验 田间试验 材料试验 潮土 技术规程
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Canonical Quantum Teleportation of Two-Particle Arbitrary State 被引量:1
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作者 HAO Xiang ZHU Shi-Qun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第2X期353-355,共3页
The canonical quantum teleportation of two-particle arbitrary state is realized by means of phase operator and number operator. The maximally entangled eigenstates between the difference of phase operators and the sum... The canonical quantum teleportation of two-particle arbitrary state is realized by means of phase operator and number operator. The maximally entangled eigenstates between the difference of phase operators and the sum of number operators are considered as the quantum channels. In contrast to the standard quantum teleportation, the different unitary local operation of canonical teleportation can be simplified by a general expression. 展开更多
关键词 canonical teleportation phase operator number operator general expression
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A High-Performance Sample-and-Hold Circuit with Sampling Bandwidth Compensation
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作者 罗磊 许俊 任俊彦 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第6期1122-1127,共6页
A novel charge exchanging compensation (CEC) technique is proposed for a wideband sample-and-hold (S/H) circuit applied in an IF sampling ADC. The CEC technique compensates the sampling bandwidth by eliminating th... A novel charge exchanging compensation (CEC) technique is proposed for a wideband sample-and-hold (S/H) circuit applied in an IF sampling ADC. The CEC technique compensates the sampling bandwidth by eliminating the impact from finite on-resistance of the sampling switch, and avoids increasing clock feedthrough and charge injection. Meanwhile, a low power two stage OTA with a class AB output stage is designed to provide the S/H a 3Vp-p input range under 1.8V power. The S/H achieves a 94dB spurious-free dynamic range for a 200MHz input signal at a 100Ms/s sample rate and consumes only 26mW with a 5.5pF load. 展开更多
关键词 BANDWIDTH sampling switch spurious-free dynamic range two-stage OTA class AB output stage
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Kinematics modeling of a 6-PSS parallel mechanism with wide-range flexure hinges 被引量:1
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作者 杜志江 史若冲 董为 《Journal of Central South University》 SCIE EI CAS 2012年第9期2482-2487,共6页
A novel 6-PSS flexible parallel mechanism was presented,which employed wide-range flexure hinges as passive joints.The proposed mechanism features micron level positioning accuracy over cubic centimeter scale workspac... A novel 6-PSS flexible parallel mechanism was presented,which employed wide-range flexure hinges as passive joints.The proposed mechanism features micron level positioning accuracy over cubic centimeter scale workspace.A three-layer back-propagation(BP) neural network was utilized to the kinematics analysis,in which learning samples containing 1 280 groups of data based on stiffness-matrix method were used to train the BP model.The kinematics performance was accurately calculated by using the constructed BP model with 19 hidden nodes.Compared with the stiffness model,the simulation and numerical results validate that BP model can achieve millisecond level computation time and micron level calculation accuracy.The concept and approach outlined can be extended to a variety of applications. 展开更多
关键词 flexible parallel manipulator wide-range flexure hinge kinematics model neural network
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Toni Morrison's (Re)visions: Dis-integrating Language in the Metafictional Novel Jazz
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作者 Silvia Ammary 《Journal of Literature and Art Studies》 2013年第7期415-426,共12页
Throughout Jazz (2004), Morrison revises language and stakes a generic revolution within her linguistic one. Problematising language, she interrogates its role by disrupting all metaphoric operation and normative op... Throughout Jazz (2004), Morrison revises language and stakes a generic revolution within her linguistic one. Problematising language, she interrogates its role by disrupting all metaphoric operation and normative operations of traditional Westem narratology, challenging ontological distinction, and undermining a novelistic claim of/for reality. Morrison creates the novel as a parody of itself. As a metafictional object, she (re)visions the fiction with multiple agendas--a means to interrogate the reality of its constitution and to implicate the political consequences inherent in that constitutional process of construction. By creating a series of antagonisms, oppositions, contradictions, equivalences, and intertextualities, Morrison transforms (and transmutes) novelistic "hostility" into a generic "trauma" simultaneously rendering it as realistic experience, historic event, personal story, collective memory, narrative device, and psychological phenomena. Exposing trauma by virtue of its linguistic symptoms, Morrison draws attention to the underlying mechanisms, structures, and apparatuses of Western linguistic codes that determine, produce, and maintain the ultimate (un)knowability of the past. This paper will examine all these and how the elliptical tendency of language surfaces the psychological disfigurement of the characters within the form of linguistic codes revealing the metaphorical tendency in Jazz to manifest its own reflective construction (and self-conscious deconstruction). 展开更多
关键词 METAFICTION postmodemism (mis)-representation simulation cracks MEMORY
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Physical contributors to glenohumeral internal rotation deficit in high school baseball players 被引量:1
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作者 Elizabeth E. Hibberd Casey E. Shutt +2 位作者 Sakiko Oyama J. Troy Blackburn Joseph B. Myers 《Journal of Sport and Health Science》 SCIE 2015年第3期299-306,共8页
Background: Glenohumeral internal rotation deficit (GIRD) is a risk factor for shoulder and elbow injury in baseball players. Although this evidence forms a basis for recommending stretching, clinical measures of i... Background: Glenohumeral internal rotation deficit (GIRD) is a risk factor for shoulder and elbow injury in baseball players. Although this evidence forms a basis for recommending stretching, clinical measures of internal rotation range of motion (ROM) do not differentiate if GIRD is due to muscular, capsuloligamentous, or osseous factors. Understanding the contributions of these structures to GIRD is important for the development of targeted interventions. We hypothesize that the osseous component will have the greatest relative contribution to GIRD, followed by muscle stiffness and posterior capsule thickness. Methods: Internal rotation ROM, muscle stiffness (teres minor, infraspinatus, and posterior deltoid), posterior capsule thickness, and humeral retrotorsion were evaluated on 156 baseball players. A side-to-side difference was calculated for each variable. Variables were entered into a multivariable linear regression to determine the significant predictors of GIRD. Results: The regression model was statistically significant (R2 = 0.134, F(1, 156) = 24.0, p 〈 0.01) with only humeral retrotorsion difference remaining as a significant predictor (β = -0.243, t156 = -4.9, p 〈 0.01). A greater humeral retrotorsion side-to-side difference was associated with more GIRD. Conclusion: Humeral retrotorsion accounted for 13.3% of the variance in GIRD. The stiffness of the superficial shoulder muscles and capsular thickness, as measured in this study, were not predictors of GIRD. Factors not assessed in this study, such as deeper muscle stiffness, capsule/ ligament laxity, and neuromuscular regulation of muscle stiffness may also contribute to GIRD. Since it is the largest contributor to GIRD, causes of changes in humeral retrotorsion need to be identified. The osseous component only accounted for 13.3% of the variance in GIRD, indicating a large contribution from soft tissues factors that were not addressed in this study. These factors need to be identified to develop evidence-based evaluations and intervention programs to decrease the risk of injury in baseball players. 展开更多
关键词 BASEBALL GIRD Humeral retrotorsion Muscle stiffness Posterior capsule thickness
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Re-operation for parotid gland cancer following non-standard surgical treatment
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作者 Xiangmin Zhang Xiaolin Lan +3 位作者 Lianbin Liu Rong Li Fufu Xiao Folin Liu 《The Chinese-German Journal of Clinical Oncology》 CAS 2012年第4期192-195,共4页
Objective:The purpose of this study was to analyze the clinical disadvantages of non-standard surgical treatment for parotid gland cancer and probe the re-operative indication following non-standard surgical treatment... Objective:The purpose of this study was to analyze the clinical disadvantages of non-standard surgical treatment for parotid gland cancer and probe the re-operative indication following non-standard surgical treatment.Methods: Data of 58 cases suffered parotid gland cancer who received non-standard operation at other hospital and received re-operation in tumor hospital of Ganzhou from June 1998 to October 2010 were retrospectively reviewed.Results: In all cases,parotid gland cancer were residual in 46 cases,the facial nerve remaining rate was 81.0% (47/58),facial nerve branches injury rate was 3.5% (2/58),facial nerve partial resection rate was 8.6% (5/58) and total resection rate was 6.9% (4/58).The sensitivity of residual tumor was 83.3%,scanned by contrast-enhanced CT and the CT positive predictive value was 86.9%. Conclusion: Consideration of the higher residual tumor rate in patients who received non-standard operations,the re-operations were necessary.Contrast-enhanced CT positive predictive value was high for residual tumor and it was important for re-operation. 展开更多
关键词 parotid gland neoplasms CARCINOMA RE-OPERATION
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Wet Compression Performance of a Transonic Compressor Rotor at its Near Stall Point 被引量:3
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作者 杨怀丰 郑群 +2 位作者 罗铭聪 孙兰昕 Rakesh Bhargava 《Journal of Marine Science and Application》 2011年第1期49-62,共14页
In order to study the effects of wet compression on a transonic compressor,a full 3-D steady numerical simulation was carried out under varying conditions.Different injected water flow rates and droplet diameters were... In order to study the effects of wet compression on a transonic compressor,a full 3-D steady numerical simulation was carried out under varying conditions.Different injected water flow rates and droplet diameters were considered.The effect of wet compression on the shock,separated flow,pressure ratio,and efficiency was investigated.Additionally,the effect of wet compression on the tip clearance when the compressor runs in the near-stall and stall situations was emphasized.Analysis of the results shows that the range of stable operation is extended,and that the pressure ratio and inlet air flow rate are also increased at the near-stall point.In addition,it seems that there is an optimum size of the droplet diameter. 展开更多
关键词 wet compression two-phase flow stall boundary transonic compressor
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Simplifi ed traditional bubble-motion equation and air-gun wavelet simulation based on a Van der Waals gas model 被引量:1
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作者 He Bing-Shou Guo Hao Hu Nan 《Applied Geophysics》 SCIE CSCD 2021年第4期537-544,594,共9页
An air-gun source is the most commonly used excitation method in off shore seismic exploration.The excitation characteristics of an air-gun source aff ect seismic data quality.Far-field wavelet simulation is an import... An air-gun source is the most commonly used excitation method in off shore seismic exploration.The excitation characteristics of an air-gun source aff ect seismic data quality.Far-field wavelet simulation is an important approach to study these characteristics.Compared to the measured wavelet,far-field wavelet simulation based on a traditional bubble-motion equation and ideal gas wavelet model has some disadvantages,such as a greater amplitude and smaller pulse attenuation velocity.Here,we start from the linear acoustic wave equation in the spherical coordinate system to deduce an improved,simpler bubble-motion equation and develop a Van der Waals gas wavelet model based on this equation.Unlike the existing methods,our method considers the high-pressure environment during actual excitation,heat exchange between the bubble and outside water,and change in the air fl ow at the muzzle.The results show that the far-fi eld wavelet simulated using this model is closer to the measured wavelet than that of the ideal gas wavelet model.At the same time,our method has a more succinct equation and a higher calculation effi ciency. 展开更多
关键词 air-gun source bubble-motion equation Van der Waals gas wave wavelet simulation
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The Dialogue Between Cinema and Philosophy: Hannah Arendt by Margarethe Von Trotta
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作者 Alessio Tommasoli 《Journal of Literature and Art Studies》 2016年第4期400-410,共11页
Hannah Arendt, the new film by the German director Margarethe Von Trotta, does not seem just like another trying to represent philosophy through the classic cinematic storytelling. It builds instead a perfect dialogue... Hannah Arendt, the new film by the German director Margarethe Von Trotta, does not seem just like another trying to represent philosophy through the classic cinematic storytelling. It builds instead a perfect dialogue between these two practices that never encroach each other: There is not any doctrine that prevents cinema's freedom to create images and any philosophy claim that forces cinema to find in images an alternative way of expression. Von Trotta leaves any biopic form and stages a harmonic building where cinema fulfills philosophy and philosophy fulfills cinema. In this way she gets an outright practical exhibition of a theory, the "banality of evil". We want to comprehend the reasons of this perfect building analyzing this film, its characters with their acts, all the images their montage, and editing, everything that supports the Arendt's philosophical notion. We work on the film with the philosophical categories created by Gilles Deleuze to study the history of cinema in two essays, Image-mouvement and Image-time. In this way we can unfold how Margarethe Von Trotta represents a theory through images, without any word as intermediary 展开更多
关键词 Hannah Arendt PHILOSOPHY Margarethe Von Trotta Gilles Deleuze film aesthethics CINEMA
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Autograft-prosthesis composite for aggressive giant cell tumor of bone around knee
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作者 Xiuchun Yu Ming Xu Zhihou Fu Songfeng Xu 《The Chinese-German Journal of Clinical Oncology》 CAS 2009年第11期619-622,共4页
Objective: The aim of the research was to study the clinical feasibility of autograft-prosthesis composite for aggressive giant call tumor of bone around knee. Methods: Seven patients (5 males and 2 females, the me... Objective: The aim of the research was to study the clinical feasibility of autograft-prosthesis composite for aggressive giant call tumor of bone around knee. Methods: Seven patients (5 males and 2 females, the mean age of 30.5 years old) with giant cell tumor of bone around knee underwent tumor resection and reconstructed with autograft-prosthesis composites since January 2006. Five lesions located at the distal femur and 2 at the proximal tibia. There were 3 patients with primary tumor and 4 with recurrent. Three patients with pathological fracture and all patients were of Campanacci Ⅲ. Results: All patients were done follow-up from 12 to 36 months. No recurrence, metastasis, and prosthesis loosening were found. The mean healing time between autograft and host bone was 5 months. The mean motion range of affected knee were 90° (70°-110°). Conclusion: Our data documented the clinical feasibility of autograft-prosthesis composite for giant cell tumor of bone around knee which should be performed tumor resection and reconstructed with prosthesis. The long-term outcomes remain to be further proven. 展开更多
关键词 aggressive giant cell tumor of bone autograft-prosthesis composite KNEE
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A force feedback master finger in exoskeleton type
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作者 Fang Honggen Liu Hong Xie Zongwu 《High Technology Letters》 EI CAS 2010年第3期299-305,共7页
In order to eliminate the drawbacks of conventional force feedback gloves, a new type of master fin- ger has been developed. By utilizing three "four-bar mechanism joint" in series and wire coupling mecha- nism, the... In order to eliminate the drawbacks of conventional force feedback gloves, a new type of master fin- ger has been developed. By utilizing three "four-bar mechanism joint" in series and wire coupling mecha- nism, the master finger transmission ratio is kept exactly 1:1.4:1 in the whole movement range and it can make active motions in both extension and flexion directions. Additionally, to assure faster data transmission and near zero delay in the master-slave operation, a digital signal processing/field programmable gate array (DSP/FPGA-FPGA) structure with 200μs cycle time is designed. The operating modes of the master finger can be contact or non-contact, which depends on the motion states of a slave finger, free motion or constrained motion. The position control employed in non-contact mode ensures unconstrained motion and the force control adopted in contact mode guarantees natural contact sensation. To evaluate the performances of the master finger, an experiment between the master finger and a DLR/HTT dexterous finger is conducted. The results demonstrate that this new type master finger can augment telepresence. 展开更多
关键词 force feedback master finger digital signal processing (DSP) field programmable gate array (FPGA) TELEPRESENCE
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Gravitational Contributions to Running of Gauge Couplings
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作者 汤勇 吴岳良 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第12期1040-1044,共5页
Gravitational contributions to the running of gauge couplings are calculated by using different regularizationschemes.As the β function concerns counter-terms of dimension four, only quadratic divergences from the gr... Gravitational contributions to the running of gauge couplings are calculated by using different regularizationschemes.As the β function concerns counter-terms of dimension four, only quadratic divergences from the gravitationalcontributions need to be investigated.A consistent result is obtained by using a symmetry-preserving loop regularizationwith string-mode regulators which can appropriately treat the quadratic divergences and preserve non-abelian gaugesymmetry.The harmonic gauge condition for gravity is used in both diagrammatical and background field calculations,the resulting gravitational corrections to the β function are found to be nonzero, which is different from previous resultspresented in the existing literatures. 展开更多
关键词 quantum gravity unification ASYMPTOTIC
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Influences of different diluents on ignition delay of syngas at gas turbine conditions:A numerical study
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作者 Dong He Weiping Yan 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2017年第1期79-88,共10页
Ignition delay of syngas is an important factor that affects stable operation of combustor and adding diluents to syngas can reduce NO_x emission.This paper used H_2O,CO_2 and N_2 as diluents and calculated ignition d... Ignition delay of syngas is an important factor that affects stable operation of combustor and adding diluents to syngas can reduce NO_x emission.This paper used H_2O,CO_2 and N_2 as diluents and calculated ignition delay of syngas in temperature range of 900-1400 K and at pressures of 10 and 30 atm respectively.In high temperature range,comparing with N_2 dilution,adding H_2O and CO_2 can significantly inhibit autoignition of syngas because they have higher collision efficiencies in reaction H + O_2(+ M) = HO_2(+ M).As for low temperature conditions,adding H_2O can increase reactivity of syngas,especially under high pressure,because of its high collision efficiency in reaction H_2O_2(+ M) = 2OH(+ M).Comparing with different dilution rates shows that for syngas and operating conditions in this paper,adding N_2 mainly influences temperature rising process of syngas combustion,thus inhibiting reactivity of syngas.In addition,this paper calculated ignition delay of syngas at different equivalence ratios(φ= 0.5,1.0).Higher equivalence ratio(φ≤1) means that less air(especially N_2) needs to be heated,thus promoting ignition of syngas, 展开更多
关键词 Ignition delay Reaction mechanism Combustion Kinetic modeling Syngas
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Study on Site Specific Design Earthquake Ground Motion of Nuclear Power Plants in China
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作者 Zhou Bochang Li Xiaojun Li Yaqi 《Earthquake Research in China》 2008年第4期410-415,共6页
The main technical backgrounds and requirements are introduced with regard to earthquake ground motion design parameters in several domestic and American standards,codes and guides involved in the seismic analysis and... The main technical backgrounds and requirements are introduced with regard to earthquake ground motion design parameters in several domestic and American standards,codes and guides involved in the seismic analysis and design activities of nuclear power plants in China.Based on the research results from site seismic safety evaluation of domestic nuclear power plant projects in the last years,characteristics and differences of site specific design spectra are analyzed in comparison with standard response spectra,and the suitability of standard response spectra for domestic nuclear power plant projects is discussed. 展开更多
关键词 Nuclear power plant Design earthquake ground motion Standard response spectra Site specific design spectra
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Legal and Economic Aspects of the Operation of Cooperatives in Polish Agriculture
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作者 Aneta Suchon 《Journal of Agricultural Science and Technology(B)》 2012年第7期737-749,共13页
The article presents the legal and economic issues connected with the formation and operation of Polish agricultural cooperatives. Additionally, it shows a brief history of cooperative development on Polish lands and ... The article presents the legal and economic issues connected with the formation and operation of Polish agricultural cooperatives. Additionally, it shows a brief history of cooperative development on Polish lands and statistical data on agriculture and cooperatives. Most attention is given to dairy cooperatives, cooperative groups of agricultural producers and agricultural production cooperatives. These types of cooperatives are the most popular in Polish agriculture. The fundamental law regulating the issue of cooperatives in Poland is the Cooperative Law Act of September 16, 1982. Other laws, however, also have a big influence on the business activity of agricultural cooperatives, especially the EU legal regulations. Poland membership in the European Union has created new possibilities of development for the cooperative movement. 展开更多
关键词 Cooperatives AGRICULTURAL common agricultural policy Poland groups of agricultural producers.
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