查询词典 case method
- 与 case method 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper,a systematic direct perturbation method of dark solitons is found.Having analyzed the mistakes in earlier works on perturbation method for dark solitonsand essence of the direct perturbation method for bright solitons,we notice that to in-troduce the adjoint solutions of the squared Jost solutions and to prove the completenessare crucial to the problem.Giving up the unnecessary scheme of introducing the adjointoperator in the bright soliton case,we directly find the adjoint solutions by meetingthe demand for the orthogonality that inner product of the squared Jost solutions andits adjoint should be proportional to a δ function in the case of continuous spectra.The corresponding adjoint operator is thus found.Taking into account the reductiontransformation,we find a correct description for the completeness of the squared Jostsolutions and directly verify its validity with explicit expressions of the squared Jostsolutions.
本论文建立了系统的暗孤子直接微扰方法,在对前人关于暗孤子微扰方法的错误以及亮孤子直接微扰方法的本质作了充分的分析后,认识到引入平方Jost解的伴随解和证明完备性是问题的关键,撇开过去亮孤子情况首先引入伴随算子的非必要作法,直接从平方Jost解与其伴随解的内积在连续谱时正比于δ函数这一正交性要求出发,找出了伴随解,同时得出了应有的伴随算子,在考虑到约化变换性后,得到了暗孤子情况的平方Jost解的完备性的正确表述,并在单个暗孤子的情况利用平方Jost解的显式直接验证了它的正确性。
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The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.
本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。
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The present invention provides a manufacturing method for case, a case jogged method and apparatus, and a manufacturing system of the packing case.
本发明提供一种箱制造方法、箱嵌合方法与装置以及包装箱的制造系统。
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Method]Eighteen cases performed Vertex technique were included in this study. The early complications included vertebral artery injury (2 cases), logagnosia (1 case), anopsia(1 case), hematorrhea (1 case) and wrong instrumentation (1 case).
方法]对18例齿状突骨折伴寰枢椎脱位中的5例6项术中和术后早期发生的椎动脉损伤、失语、失明、大出血、置钉错误等并发症的原因进行分析,避免并发症的发生。
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The case-based reasoning system mainly use object-oriented method, case expression is based on the exploitation a property of the case , use value vicinity to calculate the similarity coefficients, exert two learning way to modify the case, dividedly save the case parameter and the case model.
本系统的基于实例推理模块主要采用面向对象的方法根据实例的属性特征对实例进行表示,采用权值邻近法计算相似度进行刀具实例检索,运用两级学习方式进行实例修改学习,并且把实例参数与实例模型分开保存。
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This article carried on the reading related activity and the physical question design and in the solution literature foundation to the related concept connotation and the related theory has combed with summarizes, proposed based on the active junior middle school physics question and the solution principle and the method, and has carried on nine grade electrophysics based on the active question design teaching practice, has formed four typical cases: Series circuit characteristic case, electric radiator electric current thermal reaction case, Electricity review class case and practice simple circuit design case, has obtained the positive result.
本文在阅读有关活动及物理问题设计与解决的文献基础上对相关概念内涵及有关理论进行了梳理与综述,提出了基于活动的初中物理问题与解决的原则与方法,并进行了九年级物理电学基于活动的问题设计教学实践,形成了四个典型的案例:串联电路特点案例、电热器电流的热效应案例、电学复习课案例和实践活动简单电路设计案例,取得了积极的结果。
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Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.
本文针对某5.56mm自动步枪在工作中出现断壳的问题,分析了弹壳在轴向拉力作用下的应力应变;基于弹塑性力学及接触理论,建立了弹壳弹膛系统的数学、物理学模型,在通用有限元ANSYS软件的参数化建模工具APDL平台上,建立了弹壳弹膛系统的参数化模型;采用非线性有限元法计算了弹壳弹膛系统的整体应力,引入接触单元法分析弹壳和弹膛的接触压力,探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响;本文进行了大量的尝试,最后确定采用热、结构耦合单元Plane13,在计算中加载了火药气体的温度历程,成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解,考虑因素全面,比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。
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Mr. Wang used to deputized in FoShan Shiwan Chinaware copyright tort case, TV Program of Western Hot Land copyright tort case, the invention and patent tort case of Method of Activating Lingzhi Spores to generate Physiological Physical, SATCHI trademark tort case, TRUECOLOR trademark tort case, Kanwan trademark tort case, ENHANVOL trademark tort case, Valentino trademark right dissension and beton in addition business secret tort case, piled up rich practical experiences in IP rights protection.
王辉律师曾经代理佛山石湾陶瓷著作权侵权案、电视剧《西部热土》著作权侵权纠纷、&激活灵芝孢子产生生理活性物质的方法&发明专利侵权案、&沙驰&商标侵权案、&真彩&商标侵权案、&康王&商标侵权纠纷案、&盈康活&商标侵权案、&华伦天奴&商标权纠纷以及&混凝土外加剂&商业秘密侵权纠纷案等案件,在知识产权保护领域积累了丰富的实践经验。
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The invention relates to a method for producing duck wheat case pillow, wherein it is formed by duck wheat case, honeysuckle, and sweet wormwood; the mass ration between duck wheat case and Chinese traditional drugs is 10:1-3; the mass ratio between honeysuckle and sweet wormwood is 1:1; the duck wheat case is immerged in water for 2-3h; the honeysuckle and sweet wormwood are put in wood pot to be steamed for 11-12h; using microwave to dry matter to make water content lower than 8%; disinfecting.
本发明中一种苦荞壳药枕及其制备方法。由苦荞壳和中药材金银花、青蒿组成,苦荞壳与中药材重量比为10∶1~3,金银花与青蒿的重量比为1∶1。苦荞壳用水浸泡2-3小时,加入金银花与青蒿置于木甄薰蒸11-12小时,微波干燥含水量小于8%,杀菌即得。本发明的苦荞壳药枕对于失眠者和高血压、颈椎病、头痛、头昏等患者具有保健和辅助治疗作用。
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The application of case-based method to computer teaching is just in early stage in our country. There are few application of case-based teaching method in VB course, let alone the construction of the VB case program library.
在我国把案例教学运用于计算机教学中尚处于起步阶段,而把案例教学运用于VB课程的教学中并不常见,结合案例教学法构建相应的VB案例程序库也就更少。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。