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This paper analyze and study the influence of the superimposition in depth based on the previous achievements and combined with the theoretical qualitative analysis and project instances. The main contents as follow:Chapter 1: Indicate the significance and objective of this paper, review the previous achievements of the transient process and superimposition, and then present the study purpose of this paper.Chapter 2: combined with the physic knowledge of the fluctuation and the superimposition, Indicate the physical essences and the influence of the superimposition phenomena that exist in the diversion pipe system, and take one hydraulic turbine owning only one diversion tunnel and two hydraulic turbines sharing one tailrace conduit for instance to study out the numerical calculation superimpose operations.Chapter 3: From the calculation theory of the parameter of the guaranty calculation of regulation of the hydro-turbine, qualitative analyze the influence of the superimposition on them and the superpose time, combined with some project instances, get the numerical value of the influence of the superimposition and the superpose time.Chapter 4: Based on the previous achievements of the calculation and theoretical analysis of the surge-chamber ground swell, analyze the influence of the superimposition on it and the superpose time.
本文在前人研究成果的基础上,结合理论定性分析及工程实例,对波动叠加带来的影响进行深入分析研究,其主要内容如下:第1章,指出本文研究的意义和目的,回顾前人对水电站过渡过程及波动叠加方面的有关研究成果,在此基础上提出本文的研究内容;第2章,结合物理学中有关振动与波动叠加方面的有关知识,阐述水电站引水发电系统中存在的波动现象的实质及其影响,并以两机一洞和一机一洞具有上游调压室或下游调压室的水电站拟定其数值计算叠加工况;第3章,从机组调保参数的理论出发,定性的分析波动叠加对机组调保参数的不利影响及叠加时间,结合几个工程实例,得到波动叠加带来的影响大小及叠加时间;第4章,在前人对调压室涌浪进行计算和理论分析的基础上,分析波动叠加对调压室涌浪的影响及其叠加时间。
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Results 12 single lower incisor absence patients, of whom 6 combined with tooth extraction;3 used interproximal enamel stripping and the rest 3 combined with prosthetics;16 double lower incisors absence patients,of whom 10 combined with tooth-extraction and the rest 6 combined with prosthetics.
结果:12例单个下切牙先天缺失患者中,有6例结合减数矫治,3例采用邻面去釉技术,3例结合修复方法;16例两个下切牙先天缺失患者中,10例减数矫治,6例采取缺牙修复。
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Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.
它将为制定水资源的可持续发展目标和战略决策提供科学依据,为制定社会、经济可持续发展战略提供理论基础。基于以上考虑,论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨:①全面回顾了"可持续发展"概念的由来与演变,对国内外"可持续发展"的研究现状进行了述评,并对"可持续发展"概念的科学内涵进行了深入探讨;②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述,对目前仍然存在的一些错误观点和混乱认识提出了自己的见解;③全面阐述了地下水资源变值系统理论的内容和意义,并与传统的地下水资源计算评价方法进行了对比分析,结合实例具体说明了方法的应用;④深入分析了地下水资源预测预报工作的极端重要性和复杂性,对传统的地下水资源动态预测方法进行了全面的评述,指出了各类预测预报方法的特点及适用条件,对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围,以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍,并应用于地下水动态过程线的分析,采用时间序列中的B-J法,蒙特卡罗方法,与地下水资源变值系统理论相结合,探讨了地下水动态资料分析和地下水资源预测预报的新思路;⑤综合分析了现今各类地下水管理模型的特点及缺陷,将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度,使模型更准确、更实用;⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析,内部条件主要是正确的资源观,科学的资源计算与评价方法,可靠的资源预测预报技术,可操作的资源管理措施,外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等;⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发;⑧指出了地下水资源可持续开发的进一步研究方向。
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Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.
它将为制定水资源的可持续发展目标和战略决策提供科学依据,为制定社会、经济可持续发展战略提供理论基础。基于以上考虑,论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨:①全面回顾了&可持续发展&概念的由来与演变,对国内外&可持续发展&的研究现状进行了述评,并对&可持续发展&概念的科学内涵进行了深入探讨;②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述,对目前仍然存在的一些错误观点和混乱认识提出了自己的见解;③全面阐述了地下水资源变值系统理论的内容和意义,并与传统的地下水资源计算评价方法进行了对比分析,结合实例具体说明了方法的应用;④深入分析了地下水资源预测预报工作的极端重要性和复杂性,对传统的地下水资源动态预测方法进行了全面的评述,指出了各类预测预报方法的特点及适用条件,对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围,以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍,并应用于地下水动态过程线的分析,采用时间序列中的B-J法,蒙特卡罗方法,与地下水资源变值系统理论相结合,探讨了地下水动态资料分析和地下水资源预测预报的新思路;⑤综合分析了现今各类地下水管理模型的特点及缺陷,将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度,使模型更准确、更实用;⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析,内部条件主要是正确的资源观,科学的资源计算与评价方法,可靠的资源预测预报技术,可操作的资源管理措施,外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等;⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发;⑧指出了地下水资源可持续开发的进一步研究方向。
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Clustering results show that jihebai A combined with jihebai B first,and then combined with the Large White,with the Liaoning Black and Tanyu Black together; combined with Duroc and Landrace in turn.
聚类结果表明,冀合白A与冀合白B聚合在一起,然后与大白猪聚在一起,再与辽宁黑猪和丹育黑猪聚在一起;杜洛克、长白猪与他们依次聚在一起。
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OBJECTIVE The aims of this study are to observe the effect and acute side-effects of 192-Iridium high dose rate intrabronchial brachytherapy combined with bronchial artery infusion chemotherapy and radiotherapy on non-small cell lung cancer, and also to assess the clinical value of the treatment of HDR-IBB combined with BAI and RT, and to explore a new method of combined treatment for inoperable non-small cell lung cancer MATERIALS AND METHODS Between May 1998 and Octob...
中文摘要:一、目的:本课题观察了~(192)Ir高剂量率支气管腔内放疗对支气管动脉灌注化疗和外照射治疗非小细胞肺癌疗效的影响和副作用,初步研究探讨联合治疗的临床价值,目的在于为不能手术或不愿手术的局部中晚期非小细胞肺癌患者,探索一种新的综合治疗方法。
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Combined these two examination could help us diagnosing cartilage abnormalities more accurately. 3. We succeeded in acquiring different degree articular degeneration through lateral retinacular overlap suture combined with medial retinacular release and ACL amputation combined with medial meniscus resectomy.
使用外侧支持带紧缩和内侧支持带松解以及前交叉韧带切断和内侧半月板切除的两种方法,可以制造山羊膝关节软骨不同程度的退变,满足实验的需要。
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Method]from sept 2001 to feb 2005, 13 knees with combined acl and pcl tear in 13 patients were verified with arthroscopy. of them, 5 knee were combined with rupture of the posteromedial coner and medial collateral ligament, 3 combined with disruption of the posterolateral corner, 2 with lateral meniscus tear, 1 with medial meniscus tear, 3 associated with popliteal vascular injury and 2 with peroneal nerve injury. seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of pmc and mcl in 4 patients were performed in this phase. arthroscopic combined reconstruction of acl and pcl with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of plc with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of pmc and mcl with femoral fascia in 1 patient were completed simultaneously.
方法]自2001年9月~2005年2月,13例病人(13膝)经关节镜检查证实acl和pcl均断裂,其中5膝伴后内侧角、内侧副韧带损伤,4膝伴后外侧角损伤,2膝伴外侧半月板破裂,1膝伴内侧半月板损伤,3膝伴动脉损伤,2膝伴腓总神经损伤。7例病人于损伤后急性期入院,2膝于急性期行血管探查修复,4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束acl和pcl联合重建术,其中4例同期后1/2 股二头肌腱重建后plc,1例同期阔筋膜pmc、mcl重建。
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Through the nowadays situation of the international community insurance industry and the developments of the present condition with the economy, we can see that the environment liability insurance starts presenting the tendency of insurance industry being combined with banking and stock certificate industry, the insurance means combined with tax means, the insurer combined with insured benefits, the insurer combined with insurer, the insurance liability insurance compensation combined with environmental indemnification fund and the insurance being commercial combined with the insurance acculturates increasingly.
结合世界各国保险业和经济发展现状,可以看出,环境责任保险开始呈现出保险业与银行业、证券业结合,保险手段与税收手段结合,保险人与被保险人利益结合,保险人与保险人结合,环境责任保险与环境赔偿基金结合以及保险商业化与保险社会化日益结合等方面的趋势。
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Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.
Kempers 的研究当中提到,当网格结构越多层时,其对抗重力的能力也越强,但相对的其热阻以及流阻也越高,就如同前段所述,我们很难在单一结构当中找出一流阻低且毛细力之微结构;因此本研究便以表2中之三种微结构进行组合,找出一低流阻且毛细力强之复合式结构,经分析发现,沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式,但由于烧结搭沟槽构造将会提高流道之流阻,且本研究使用铝做为基材,并无法使用烧结最为其微结构,故将采用网格搭配沟槽之复合式结构提高结构的毛细力,并维持沟槽结构的高渗透性,解决因角度造成热管失效的问题。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。