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| 1 | 被误读的“修改权”显示文摘我国《著作权法》第10条第3项规定了作者的修改权,其含义是'修改或者授权他人修改作品的权利'。这是在我国1990年《著作权法》中就已得到承认的权利,但适用十多年来,修改权的含义始终被误读。按照目前学术界与司法界的惯常理解,修改权根本没有存在的必要,只是保持作品完整权的附庸而已。为澄清误解,正确地保护修改权,本文将探求'修改权'之真义。 | 李琛 | 2004 | 中国专利与商标2004，，3： | 13 |
| 2 | Adaptive Control Based on Neural Networks for an Uncertain 2-DOF Helicopter System With Input Deadzone and Output Constraints显示文摘In this paper, a study of control for an uncertain2-degree of freedom(DOF) helicopter system is given. The2-DOF helicopter is subject to input deadzone and output constraints. In order to cope with system uncertainties and input deadzone, the neural network technique is introduced because of its capability in approximation. In order to update the weights of the neural network, an adaptive control method is utilized to improve the system adaptability. Furthermore, the integral barrier Lyapunov function(IBLF) is adopt in control design to guarantee the condition of output constraints and boundedness of the corresponding tracking errors. The Lyapunov direct method is applied in the control design to analyze system stability and convergence. Finally, numerical simulations are conducted to prove the feasibility and effectiveness of the proposed control based on the model of Quanser's 2-DOF helicopter. | Yuncheng Ouyang Lu Dong Lei Xue Changyin Sun | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，3： | 9 |
| 3 | ON MARK TWAIN'S MASTERPIECE THE ADVENTURES OF HUCKLEBERRY FINN显示文摘ONMARKTWAIN'SMASTERPIECETHEADVENTURESOFHUCKLEBERRYFINNLIXUEAbstract:THEADVENTURESOFHUCKLEBERRYFINNdepictsthelifeoftheAmerican... | LI XUE | 1996 | 广西大学学报(哲学社会科学版)1996，18，3： | 9 |
| 4 | Dual-comb spectroscopy resolved three-degreeof-freedom sensing显示文摘Precise and fast determination of position and orientation, which is normally achieved by distance and angle measurements, has broad applications in academia and industry. We propose a dynamic three-degree-of-freedom measurement technique based on dual-comb interferometry and a self-designed grating-corner-cube(GCC) combined sensor. Benefiting from its unique combination of diffraction and reflection characteristics, the absolute distance, pitch, and yaw of the GCC sensor can be determined simultaneously by resolving the phase spectra of the corresponding diffracted beams. We experimentally demonstrate that the method exhibits a ranging precision(Allan deviation) of 13.7 nm and an angular precision of 0.088 arcsec, alongside a 1 ms reaction time. The proposed technique is capable of precise and fast measurement of distances and two-dimensional angles over long stand-off distances. A system with such an overall performance may be potentially applied to space missions,including in tight formation-flying satellites, for spacecraft rendezvous and docking, and for antenna measurement as well as the precise manufacture of components including lithography machines and aircraftmanufacturing devices. | SIYU ZHOU VUNAM LE SHILIN XIONG YUETANG YANG KAI NI QIAN ZHOU GUANHAO WU | 2021 | Photonics Research2021，9，2： | 8 |
| 5 | Theory of Point Contact Restraint and Qualitative Analysis of Robot Grasping显示文摘This paper presents a geometrical representation of robot grasping and a definition of 'relative form closure' of point contact restraint based on the concepts of positive linear combination,affine combination,convex combination,etc.in the screw space.The dual equivalence theorem,topological equivalence theorem and algebraic equivalence theorem are derived from the defined restraint cone and freedom cone in the dual screw spaces.A J0-function method of computer-aided grasp planning is implemented more efficiently than other proposed methods.The states of restraint and instantaneous motion of a rigid body grasped by a set of point contacts are specified by the unisense degrees of freedom and unisense degrees of restraint.Finally,a quality measure of robot grasping is provided for the synthesis procedure of relatively form-closed grasp. | 熊有伦 | 1994 | Science China Mathematics1994，37，5： | 7 |
| 6 | Type synthesis of a class of spatial lower-mobility parallel mechanisms with orthogonal arrangement based on Lie group enumeration显示文摘Type synthesis of lower-mobility parallel mechanisms (PMs) has drawn extensive interests, particularly two main approaches were established by using the reciprocal screw system theory and Lie group theory, respectively. Although every above approach provides a universal framework for structural design of general lower-mobility PMs, type synthesis is still a comparably difficult task for the PMs with particular geometry or required to fulfill some specified tasks. This paper aims at exploring a simple and effective synthesis method for lower-mobility parallel mechanisms with orthogonal arrangement (OPMs), and the applied mathematical tool is established in the displacement group theory. For this purpose, the concept of the Cartesian DOF-characteristic matrix, originated from canonical displacement subgroup and displacement submanifold, is proposed. A new approach based on combination of the atlas of Cartesian DOF-characteristic matrix and displacement group-theoretic method is addressed for both exhaustive classification and type synthesis of OPMs. Type synthesis for some representatives of 3-DOF OPMs verifies effectiveness of the proposed approach. | DAI Jian S. | 2010 | Science China(Technological Sciences)2010，53，2： | 7 |
| 7 | 移植与创新:德国学术自由理念在美国的嬗变显示文摘学术自由是经典大学理念之一。其核心既包括主体即机构的自由和个体的自由,又包括内容即教师教学、科研的自由和学生学习的自由两大方面。美国的宗教信仰和言论自由为德国学术自由的移植提供了思想文化土壤,在借鉴德国学术自由思想的基础上,结合本国的政治、经济和文化制度,美国形成了具有自己特色的学术自由传统,实现了德国学术自由的美国化。对德国学术自由理念在美国的移植与创新进行研究有助于我们更加深刻地理解与把握学术自由的本质与意义。 | 赵叶珠 程海霞 | 2010 | 现代大学教育2010，26，6： | 6 |
| 8 | 低碳消费伦理:自由与公正之张力显示文摘消费自由与消费公正同为基本人权,都是人们社会经济生活所必需,具有同等的内在价值,但二者之间又存在复杂的张力关系。低碳消费伦理在消费自由与消费公正的关系中,更加倾向于对消费公正的关注,尤其是代际公正和生态公正,因而有削弱消费自由之嫌。在这样的语境下,如何伸张消费自由,如何消解消费公正与消费自由之间的反向张力,就成为低碳消费能否成为人们普遍接受的消费方式的关键,同时也是低碳经济发展能否成功的关键之一。 | 刘亚明 | 2010 | 贵州财经学院学报2010，，6： | 6 |
| 9 | Experimental Study on Interaction Between Degrees of Freedom in a Wave Buoy显示文摘Increasing degrees of freedom(DOFs)is a useful way to raise the power capture efficiency of oscillating wave energy converters.Thus,this study proposes a buoy with three DOFs,which are surge,heave,and pitch.The hydrodynamic performance and power capture efficiency of the buoy is physically modeled.Amplitudes of unidirectional and coupled motions are compared to analyze the interaction effect between freedoms under conditions with and without power take-off damping.The capture width ratio and corresponding growth rates are also calculated.Results show that the buoy makes a periodic sinusoidal(or approximate)movement in every DOF.Coupling effect can cause an increase in the amplitude in one DOF and a decrease in the amplitudes of the others.This phenomenon shows that the kinematic energy of the buoy redistributes to all DOFs compared with the unidirectional conditions.Adding DOFs can improve the power absorption of the buoy in most cases,but the number of DOFs is not the more the better. | HUANG Shuting SHI Hongda CAO Feifei TAN Junzhe CHENG Haixun LI Demin LIU Shangze GONG Haoxiang TAO Ji | 2019 | Journal of Ocean University of China2019，18，6： | 5 |
| 10 | HERMITE—BIRKHOFF INTERPOLATION OF SCATTERED DATA BY RADIAL BASIS FUNCTIONS显示文摘For Hermite-Birkhoff interpolation of scattered multidumensional data by radial basisfunction ,existence and characterization theorems and a variational principle are proved.Examples include (r)=r^b,Duchon’s thin-plate splines,Hardy’s multiquadrics,and inversemultiquadrics. | 吴宗敏 | 1992 | Analysis in Theory and Applications1992，8，2： | 5 |
| 11 | Perspective on multiple degrees of freedom in crystal materials显示文摘Degrees of freedom describe the freedom of variables or values to vary within a specific material system.Research on functional crystalline materials generally involves their preparation and growth to large-sized crystals,as well as the exploration of structure-property relationships[1,2].With the continuous research on the applications of functional crystalline materials in quantum science and technology. | SHI GuoQiang XUE DongFeng | 2022 | Science China(Technological Sciences)2022，65，11： | 4 |
| 12 | PSO-based Parameter Tuning for a TwoDegree-of-Freedom IMC Scheme and Its Application to Paper Basis Weight Control显示文摘Basis weight is an important indicator for evaluating paper quality and a major factor directly affecting the economic benefits of enterprises.Focusing on the large time-delay,time-varying,and nonlinear characteristics of a basis weight control system,a two-degree-of-freedom(TDF)internal model control(IMC)method based on a particle swarm optimization(PSO)algorithm was proposed.The method took the integral of time multiplied by the absolute error(ITAE)as the objective function,and the PSO algorithm was used to optimize the time constant of the tuning IMC filter.The simulation results for the control system under the proposed TDF-IMC method based on the PSO algorithm demonstrate good set-point tracking performance,strong anti-interference capabilities,and good robustness properties.The application results revealed that the basis weight fluctuation range of the paper was±2 g/m2,which significantly improved both the control quality and the product quality. | Wei Tang Zhimin Yuan Wenjuan Shan MdMuhie Menul Haque | 2019 | Paper And Biomaterials2019，4，4： | 4 |
| 13 | 英译汉费解现象浅析——兼与《了不起的盖茨比》的译者商榷显示文摘翻译中的费解现象不仅出现在初出茅庐者的笔下,甚至在一些成绩斐然者的译作中也有.本文以《了不起的盖茨比》的翻译为例,探讨了英译汉中费解现象的三种来源:①望文生义的随译②逻辑迷离的推论③令人望而生畏的欧化长句. | 李立达 | 1989 | 内江师范学院学报1989，4，1： | 3 |
| 14 | An experimental investigation of one-and two-degree of freedom VIV of cylinders显示文摘In the paper,an experiment investigation was conducted for one-and two-degree of freedom vortex-induced vibration(VIV) of a horizontally-oriented cylinder with diameter of 11 cm and length of 120 cm.In the experiment,the spring constants in the cross-flow and in-line flow directions were regulated to change the natural vibration frequency of the model system.It was found that,in the one-degree of freedom VIV experiment,a 'double peak' phenomenon was observed in its amplitude within the range of the reduced velocities tested,moreover,a '2T' wake appeared in the vicinity of the second peak.In the two-degree of freedom VIV experiment,the trajectory of cylinder exhibited a reverse 'C' shape,i.e.,a 'new moon' shape.Through analysis of these data,it appears that,besides the non-dimensional in-line and cross-flow natural vibration frequency ratios,the absolute value of the natural vibration frequency of cylinder is also one of the important parameters affecting its VIV behavior. | Zhuang Kang Lu-Sheng Jia | 2013 | Acta Mechanica Sinica2013，29，2： | 3 |
| 15 | Multiple Emitters Localization by UAV with Nested Linear Array:System Scheme and 2D-DOA Estimation Algorithm显示文摘Unmanned Aerial Vehicle(UAV)equipped with uniform linear array has been applied to multiple emitters localization.Meanwhile,nested linear array enables to enhance localization resolution and achieve under-determined Direction of Arrival(DOA)estimation.In this paper,we propose a new system structure for emitters localization that combines the UAV with nested linear array,which is capable of significantly increasing the positioning accuracy of interested targets.Specifically,a localization scheme is designed to obtain the paired two-dimensional DOA(2D-DOA,i.e.azimuth and elevation angles)estimates of emitters by nested linear array with UAV.Furthermore,we propose an improved DOA estimation algorithm for emitters localization that utilizes Discrete Fourier Transform(DFT)method to obtain coarse DOA estimates,subsequently,achieve the fine DOA estimates by sparse representation.The proposed algorithm has lower computational complexity because the coarse DOA estimates enable to shrink the range of over-complete dictionary of sparse representation.In addition,compared to traditional uniform linear array,improved 2D-DOA estimation performance of emitters can be obtained with a nested linear array.Extensive simulation results testify the effectiveness of the proposed method. | Xinping Lin Xiaofei Zhang Lang He Wang Zheng | 2020 | China Communications2020，17，3： | 2 |
| 16 | An Analysis on Binary Opposition in To Room Nineteen显示文摘This essay is to explain Susan’s tragic fate by analyzing binary opposition revealed in the story:freedom vs.restriction,worth vs.worthless,and understanding vs.misunderstanding.It can be drawn that:physical and mental restriction deprives Susan of freedom;the loss of freedom makes Susan feel valueless,lonely and empty;restriction,loneliness and emptiness that torture Susan’ s soul can neither be understood nor be removed;with the desire for freedom and hopelessness of the real world,Susan chooses to commit suicide. | 谢盈盈 | 2010 | 时代教育2010，，12： | 2 |
| 17 | The Duchess of Malfi显示文摘John Webster’s The Duchess of Malfi is a good tragedy,it describes a widow who decides to remarry to her steward and pursues her love,but her two brothers threaten her to give up this unnoble behavior.Their response is extraordinary and extreme.It’s a story that women want to gain independence and freedom in a male-dominated and repressive society.It’s also a great | 杨业花 | 2015 | 校园英语2015，，4： | 2 |
| 18 | The Dream of Freedom—An Interpretation of The Story of an Hour from the Perspective of Feminism显示文摘Kate Chopin,one of the most outstanding women writers in the late nineteenth century in America,focused on women’s social position,marriage and family,love and freedom to fight against patriarchalism.She wrote two novels and about a hundred short stories in the 1890s.And over a long period of time,critics have considered The Story of an Hour as a work of feminism which offers a strikingly feminist perspective on an American housewife of that time.This thesis analyzes the inner experience of the heroine within an hour and shows us that freedom is so essential to her while her marriage is a yoke to her. | 蒋天晨 | 2014 | 海外英语2014，，5X： | 2 |
| 19 | 基于共享经济的网约导游平台服务——以“FREEDOM自游”网约导游APP构建为例显示文摘一、研究背景及服务介绍(一)研究背景共享经济下,'互联网+导游'的模式,以及国家推行导游自由职业化试点政策,使网约导游成为一种新兴的旅游模式。为了弥补传统的旅游及导游行业和现阶段各类企业网约导游的弊端,为了让旅游者在旅行过程中收获更满足的体验,为了让自由职业后的导游人员给游客提供更优质的服务,立足旅游业,立足国家政策,立足国民现状,'FREEDOM自游'网约导游APP平台应运而生。(二)服务介绍'FREEDOM自游'网约导游app是一款在线的服务平台。 | 李崇 可娜 | 2018 | 旅游纵览(下半月)2018，0，9： | 1 |
| 20 | Long-Term Effect of TMD on Vibration Control of An MDOF Offshore Fixed Platform显示文摘A three-dimensional fixed offshore platform in deep water modeled by the finite element method is studied in this paper. Analysis of the dynamic response of the MDOF structure is realized taking the non-linearity of the wave drag force and the wave-structure interaction into account. The structural response statistics, which have Gaussian distributions, are used to evaluate the vibration effect of the structure without TMD and with TMD. And an optimal method to design TMD controlling the first mode of the multi-mode structure is proposed. Moreover, the probabilities of occurrence of sea states at the platform site are considered for prediction of the long-term effect of a TMD. Simulation results demonstrate that the long-term effect of a well-designed TMD is good and the practical use is possible due to the good stability of its optimal parameters under different sea states. | 石湘 Tetsuya MATSUI WU Minger | 2003 | China Ocean Engineering2003，18，4： | 1 |
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