On the basis of the above references, this paper attempts to make use of cone compression and expansion fixed point theorem, Mnch fixed point theorem and fixed point index theorem to discuss a special kind of singular boundary value problem-Lidstone boundary value problem.

主要包括以下三個(gè)方面的內(nèi)容：第一章考慮了Banach空間中2n階奇異邊值問(wèn)題正解的存在性第一页自拍偷拍，其中f在t=0青草青在线视频，1處具有奇異性這里θ表示Banach空間E中的(來(lái)源：faABC論文網(wǎng)www.abclunwen.com零元。

In order to locate the point target found timely and satisfy the need to obtain information and respond quickly, this paper proposes an algorithm for the latitude and longitude of point targets so that given the known parameters, the latitude and longitude of a point target can be calculated on the SAR image at the earliest possible time. This paper also offers parametric estimation of and experimental research on the precision of the algorithm.

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This paper first analyses and summarizes the ststus quo and evolution trend of encryption, some common used cryptograph are introduced, including the algorithms used in symmetric cryptosystem and asymmetirc cryptosystem. We describe the theory of each algorithms and compare the elliptic curve cryptosystem with the other two asymmetric cryptosystems to show the advantages of this algorithm. Second, the principle of ECC is discussed, including the math foundation of ECC, basic conception of elliptic curves, constructiong idea of ECC, operation on the elliptic curve and so on. Third, the current attacks of ECC were analyzed deeply, and an algorithm based on limited prime number field was constructed. We analyzed its realizability in theory, and implement it by using certain function of MIRACL software package. Latter half in this paper, the implementation model of a simple elliptic curve encryption system which based on GF has been introduced. The paper also put a deep analysis on the algorithm of point addition and point multiplication.

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Based on the computation of double point, triple point, and quintuple point, it computes scalar multiplication nP by using properoperations.

該算法在已知二倍點(diǎn)、三倍點(diǎn)和五倍點(diǎn)運(yùn)算量的基礎(chǔ)上精品欧美哟哟，經(jīng)過(guò)恰當(dāng)?shù)倪\(yùn)算計(jì)算標(biāo)量乘。

Beijing environmental problems hold severe, and atmospheric and water pollute, soil and water loss, hot island and yawp are leading problems,and take on territorial characteristic. Based on research on relativity between urban forest and these environmental problems, urban forest can effective improve environmental quality in Beijing. And for the aim of improve environmental quality, Beijing forest overlay should attain 35% at least in citywide range, and local-areas being severe environmental problem should be provided with higher forest overlay.5. Through the study on urban forest needed capacity, Beijing's forest coverage is up to par in citywide range, but montanic forest coverage, plain covered with trees and average forest area are lacking, and CO2 and O2 balance is incapable;form the point of heat and balance CO2 and O2 balance,urban forest the city zone and suburb is lack. There is urban forest developmental potential space,but the city zone and suburb area need be compensated form urban forest in circumjacent region.6. On the based of the above results and ecological network system, the author drived whole region into city area, plain and mountain area are needed at the point of planning thoughts of running-through forests and water .

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First, based on the research of vocality art and vocalization, I discuss how to set up reasonable aesthetics concept on tenor"s voice, then expatiate on the characteristics,of the tenor"s voice in bel canto and the theoretic significance of setting up reasonable sound aesthetics concept. This essay is mainly on the way and key point of constructing tenor" s voice, especially solving the core problem of alt skill. The essay argues that the construction of tenor" s voice is based on the mediant and undertone sections; finding the phonate source, practice step by step, surrounding the point , string and side of the voice; train the students using suitable vowels according to the students with different characteristics ; emphasizing that ten essential words are the golden key to solution of the core problem in the "closing " method.

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Impact of composition upon the cold flow properties for biodiesel was investigated with gas chromatography-mass and cold filter plugging point tester based on the theories of molecular structure and crystal growth. Biodiesel may be considered a pseudobinary mixture consisting of components, with high-melting-point saturated fatty acid methyl esters and with low-melting-point unsaturated ones.

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In this time, we can recognize the number image depending on the location of the end-point. If the y-coordinate of the end-point is bigger than half of the height of the number image, the recognized result is 6. Else the result of recognition is 9. Then if there are two end-points and there is no trifurcate point, the possible recognition result of the number image is 2, 3, 5 or 7. Here, we need to recognize the number image by dint of the end-point directions and locations.

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From the point of practice and dvelopment, how to impove the ability of credit risk management for Yinchuan city commercial bank is discussed surrounding the client raiting and credit extention, measures of credit risk, management strategies of credit risk, conclusions of the paper are listed as the following:Through positive analysis, the current methods of client rating and credit extension is simple and convenient for application, there are four disadvantages in index system of it: non-customer subdivision, non-consideration factors on industrial risks, larger quantitative indicators ratio, non-consideration factors on affiliated enterprise risk, and some corrective measures are put forward to solve it, customer subdivision, factors-added on industrial risks, set stationarity indices ratio in reason, factors-added on affiliated enterprise risk; From the point of development, Based on the technology of Value-at-Risk and CreditMetrics model we discussed the methods of credit risk analysis and measurement and gave the example of how to calculate the VaR value of individual loan and combined loan; This paper probes into the strategies which raise the ability of credit risk management for Yinchuan city commercial bank from five aspects, including strengthen the inner control, improve the technique level of risk management through information technique, solve the problem of non-performing loan, adjust the credit orientation and structure, foster credit culture with its core based on risk control.

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