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The criminological school of Equality of men and women imposes strong criticism on traditional criminology for ignorance of women and queries the validity of misunderstanding and unjustness to women in such fields as criminal legislation, judicature, and law enforcement. Based on above reason, sex discrimination is put forward in criminology, which contributes a great deal to development of criminology.
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With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.
本論文本著科技創(chuàng)新、服務于生產(chǎn)實踐的精神久久久久A级毛片免费看,以設計價格低廉黄色a片视频中文字幕在线观看一级,性能優(yōu)越、結(jié)構(gòu)合理簡單的L-band EDFA為目標www.xxxx.xom,依托浙江省科技廳重大科學基金資助項目(001101027)和浙江大學振興教育計劃資助的全光網(wǎng)絡的搭建—《光通信技術》課程實驗建設項目最新91地址永久入口,展開了如下工作:首先,介紹了摻鉺光纖放大器的工作原理性生交A片,歸納總結(jié)了基于速率方程基礎的EDFA的各種理論模型九九视频精品在这这里,分析比較了各個模型的特點和適用場合,最終選擇完善的Giles理論模型作為本論文分析設計EDFA的理論基礎一级毛片永久免费视频;針對實際實驗條件提出了修正的EDFA模型的數(shù)值計算方法操女生在线免费看;創(chuàng)新地提出了增益—噪聲系數(shù)全局分析法,直觀有效地分析了EDFA的增益和噪聲系數(shù)與摻鉺光纖長度和泵浦功率的依賴關系国产精品影院在线,并對各種EDFA的性能作了全面的比較免费看国产曰批40分钟视频;第二,介紹了摻鉺光纖放大器特性參數(shù)的定義與測量方法久久免费五月黄片,重點介紹了噪聲系數(shù)和增益系數(shù)的測量方法及實驗裝置www.久久,com;介紹了組成摻鉺光纖放大器各組件的特性測量方法,重點介紹了測量摻鉺光纖參數(shù)的方法和實驗裝置有A片网站吗?;第三在线69,針對WDM系統(tǒng)對L-band EDFA譜平坦、低噪聲成人精品视频在线日韩免费观看网址、高增益的要求国产欧美十八禁,我們創(chuàng)新地提出了四種不同的L-band EDFA結(jié)構(gòu),按設計思路可以分為兩大類:一類是基于單抽運二級泵浦法国产又粗又猛又爽在线观看,這一類包括在未泵浦摻鉺光纖的輸入端插入一根布拉格光纖光柵的兩段L-band的EDFA的新結(jié)構(gòu)国产真实偷乱视频老人;基于前向ASE光作為二級泵浦源推動下一級EDF工作的泵浦分配、兩段級聯(lián)L-band的EDFA的新結(jié)構(gòu)精品福利在线视频;基于單根光纖光柵www.美女中文字网络、泵浦分配、兩段級聯(lián)的EDFA天天日天天色天天干;另一類則是基于同時應用前后向C-band ASE作二級泵浦源的雙抽運法人人揉人人操人人爽,如基于前后向ASE光作為二級泵浦源的三段級聯(lián)L-band的EDFA的新結(jié)構(gòu)。
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But for different specialties people gave different models for secure network coding. For instance, J P Vilela introduced light weight secure network coding, and K Bhattad introduced weakly secure network coding. When considering the practical secure network, we must think over the network coding that resists active attack, that is to say resists Byzantine attack. In this paper we also introduce such kind of network coding.
蔡寧和楊偉豪首先針對單信源有向無圈網(wǎng)絡給出了安全網(wǎng)絡編碼的定義和模型久久这里只有欧美精品,其他研究者也各自提出了不同的安全模型75性交欧美色色,如J P Vilela提出了輕量級安全的網(wǎng)絡編碼,K Bhattad提出了弱安全的網(wǎng)絡編碼等午夜级小电影,另外還有抗拜占庭攻擊的網(wǎng)絡編碼美女露出奶头18奶水喷高潮网站。
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The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.
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Through simulation and computation, some critical values to contral interferences are obtained. These values have directive significance to the design and deployment of WRAN.(4) New methods to measure and analyze spectrum aredevelopedAccording to the shortages of previous spectrum measurements, new methods to measure spectrum occupancy in wide-band and multi-point synchronously is proposed in this dissertation, and the tests last a whole week; the relativities of licensed services are considered when test points are selected. More importantly, data mining and in-depth analysis are carried out with the huge amounts of test data, and a channel analysis method using Channel Vacancy Duration and Service Congestion Rate are proposed. The spectrum relativities of 3-dimension in time, space and frequency are researched also. The correlativity between channel state and history information is discoved, and which will provide the scientific basis to channel modeling, spectrum analysis and decision of CR users.
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The innovations of this essay are following:Ⅰ, Completely investigating the theoretic introduction, practical application, and effects on investment administrant, and putting forward that China should transit gradually from dracon quantity regulation rules to prudent man rules;Ⅱ, Lucubrating the rational, negative effects, and experience tests of portfolio allocation regulation, performance regulation, and industry structure regulation of pension funds over OECD countries;Ⅲ, Analyzing the rational and sensibility of relative rate of return guarantees of pension plan, and advancing the scheme of rate of return guarantees of China;Ⅳ, First investigating the investment policy of pension plans globally using "contents analysis" over the world pension plans;Ⅴ, Lodging that portfolio diversification should be the most important risk management instrument, and presenting efficiency measure model of evaluating portfolio diversification of pension funds;Ⅵ, Lucubrating the optimal portfolio allocation model during accumulation phase and decumulation phase of pension funds; taking for that risky assets should decrease with time reducing during accumulation phase, but during decumulation risky assets should increase.
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Combining with the practice of curriculum setting in our primary command vocational education academy at moment, according to the guidance, course and policy of vocational education from headquarters at high level, theory of education target assorting, principle of Thaler, degree theory, category and sequence, means of differentiation and plan are applied comprehensively, and the principle of curriculum setting and curriculum system structure in primary command vocational education academy are pointed out, and the target of vocational education in primary command academy, the principle , contents and methods of curriculum target setting are circumstantiated through investigation and consultation, theoretic analysis and general comparison; the process of curriculum setting in primary command vocational education academy is defined; the curriculum system of vocational education in primary command academy is devised innovatively; with regard to the implementation and optimization of curriculum in military primary command academy, general requirements and basic principles and standards are proposed after pointing out the influencing factors and implementation process.
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Combining with the state of our research, the control strategy of the electronically controlled diesel engine and the design method of ECU have been put forward. All of these include determining control function, compartmentalizing the sub-functions, defining key of control links and control scheme have been brought forward. The control logic has been designed to meet the requirements of the control function of fuel injection and gas exchange system. The criterion of speed stable state has been proposed in this paper.
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The following is the research frame of this dissertation:Chapter one: Introduce background, research significance, research object, research contents and methods of this dissertation; review the history of clusters theoretical research in detail; dissertate main research dynamic status of domestic and international;Chapter two: Through explain theoretical foundation of cluster research, it defines and demarcates clusters, introduces the concept of private enterprises" cluster on this basis, and summarizes current situation of Quanzhou private enterprises" cluster;Chapter three: Propose the concept of cluster competitiveness, collect and analysis those factors which influence cluster competitiveness, and set up an appraisal system of private enterprises" cluster competitiveness;Chapter four: Define developing stages of private enterprises" cluster with clusters" dominance competitiveness, analysis characteristic and law of private enterprises" cluster in different life cycle, give out strategic countermeasures separately which promote cluster competitiveness in different stage;Chapter five: On the basis chapter three and chapter four, propose what we can use cluster strategic planning to promote Quanzhou cluster competitiveness; and recommend thought of cluster strategic planning;Chapter six: Introduce the case of Quanzhou sports shoes cluster, use competitiveness appraise system and life cycle theory for empirical analysis, and put forward detailed countermeasure that can promote cluster competitiveness;Conclusion: Summarize the research of full dissertation, and point out some weaknesses of this dissertation.
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