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The thesis studies the difference between GWSs composition and traditional workflow applications, proposes the implement mechanism and technical architecture of GWSs composition and defines the reference model of GWSs composition platform, which provide holistic framework and top-level guidance for studying dynamic GWSs composition technology, designing GWSs composition platform, and implementing representative composite service applications.2、Theories and methods of composite process modeling and process analysis. This thesis proposes a meta-model of Geo-spatial Web services composition process defining from two aspects, i.e. process and resource. According to the process definition meta-model, we propose a new Geo-spatial Web services composition Process/Resource model based on extended WF-net, which effectively resolves the problems on uncertain activity option and dynamic variation of service in composite process model. A notion with regard to soundness of process model is proposed from three aspects, i.e. the structural correctness of process model, validity of data link and validity of resource. The notion of soundness definitely gives a dividing line on correctness of composite GWS process. This thesis analyzes sufficient and essential terms of soundness, and studies compositional property of WSCP/R-net models which provides an effective method to construct a soundness WSCP/R-net model. According to WSCP/R-net, the thesis proposes composition algebra and studies the properties of it. Based on the composition algebra, 6 kinds of composite process reduction rules are induced to optimize the process.3三级裸体aⅤ\、Geo-spatial Web service QoS model and its application architecture. This thesis proposes an extendable GWS QoS model from three aspects, i.e. Geo-spatial Web Service itself, networking conditions and service consumer which can be used to distinguish GWSs with overlapping or identical functionality. We work over the QoS evaluation methods of composite GWS process which can be used to guide the execution, monitor and service selection of composition process. Aming at some disadvantages in traditional Web service discovery model for its lacking of QoS supporting, this thesis proposes a new service discovery model SDMQ supporting QoS constraints.4日本三级片2021、Technologies of composite service executing. SSPL, a new composite service process language, is defined to overcome the disadvantages of existing composite services process languages which can not adapt to the dynamic variation of Geo-spatial Web Services. An algorithm is described to translate WSCP/R-net model into SSPL. The thesis studies the model of dynamic services selection with QoS global optimization, presenting an algorithm GODSS to resolve dynamic services selection with QoS global optimization in GWSs Composition.5、Design and implement experimental system and representative applications. According to the research findings presented above, we design and implement an experimental system and construct two representative applications to show that our achievements are effective and practical.

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The growth dynamics of leaf length on stem and tiller could be described with a logistic model, leaf width with conic equation, and leaf shape with exponential function and quadratic equation. The effects of nitrogen and water conditions on leaf growth were quantified by the effective values of leaf nitrogen concentration and water content.

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Discrete Fourier Transform and Discrete Cosine Transform are used to get the descriptors of lip contours in the unsymmetrical lip contours model automatically. Hidden Markov Model is trained by using both of the descriptors as the eigenvector of lip contours, and then recognition ability is tested.4. Feature fusion is used to improve the classifiable power.

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Discrete Fourier Transform and Discrete Cosine Transform were used to get the descriptors of lip contours in the asymmetrical lip contour model.Then the Hidden Markov Model was trained using two kinds of descriptors as the eigenvectors of lip contours.

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Aimed to two major problems: one is not decidable and the other is no clear semantics. We construct a framework with explicit representation and formal semantics of goalsgoal description logics, which integrates two types of goals: declarative goals and procedural goals into one concept based on description logics. In addition, the goal plan is defined and analyzed, and some reasoning problems, such as goal consistency and goal satisfiability, are discussed. Contrary to traditional ways of goal description, GDLs can bridge the gap between theory and practice in a natural way.

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For the image with random field feature, the description language is probability distribution model, and the description length equals the negative base-two logarithm of the probability of the image data; For the region homogeneity properties of active contour, the description language is chosen as a sign gradient map, and the description length is the summation of sign gradient inside the active contour; For the active contour regularity, the description language is smoothness, and the corresponding description length is the length of active contour curve.

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In the chiral SU(3) quark model, we use the coupling between quarks and nonet scalar meson fields and nonet pseudo-scalar meson fields to describe the medium and long range interactions, and use one gluon exchange to describe the short range interaction. In the extended chiral SU(3) quark model, besides the nonet pseudo-scalar meson fields and the nonet scalar meson fields, the coupling between vector meson fields and quarks is also considered, the short range interaction can be dominately described by vector meson exchange. We investigate the nucleon-hyperon interaction in the extended chiral SU(3) quark model and study the S-wave phase shifts of N-Λ and N-Σ systems. Comparing to the results in chiral SU(3) quark model, we find that the short-range interaction could be described either by the one-gluon exchange or vector meson exchange.

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In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

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descriptive adequacy：描述上的妥當(dāng)性

describing 描述 | descriptive adequacy 描述上的妥當(dāng)性 | descriptive simile 描述明喻

descriptor base register：描述符基底暫存器

描述符基底 descriptor base | 描述符基底暫存器 descriptor base register | 描述符塊 descriptor block

descriptor base register：描述符基底緩存器

描述符基底 descriptor base | 描述符基底緩存器 descriptor base register | 描述符塊 descriptor block

Her beauty is beyond description：她的美貌難以用語(yǔ)言來(lái)描述

(2)beyond description 難以描述 eg: | Her beauty is beyond description. 她的美貌難以用語(yǔ)言來(lái)描述. | (3)give/make a description of ...對(duì)......加以描述 eg:

commanding：指揮的,一般描述后衛(wèi)和門(mén)將,可以考慮作為隊(duì)長(zhǎng)人選

Enthusiastic:激情的,一般描述中前場(chǎng)球員. | Commanding:指揮的,一般描述后衛(wèi)和門(mén)將,可以考慮作為隊(duì)長(zhǎng)人選. | Expolsive:爆發(fā)力強(qiáng)的,一般描述邊路球員和前鋒.

device context：設(shè)備描述表

設(shè)備描述表(DC)設(shè)備描述表和 CDC 設(shè)備描述表(Device context) 設(shè)備文本 設(shè)備描述表是Windows應(yīng)用程序,設(shè)備驅(qū)動(dòng)程序和輸出設(shè)備之間的橋梁,它與一個(gè)特定的設(shè)備相關(guān)聯(lián).例如,對(duì)顯示器輸出而言,設(shè)備描述表通常與顯示器上的某個(gè)窗口相關(guān)聯(lián).

description block：描述列塊 描述區(qū)塊

descending 遞減排序 遞減排序 | description block 描述列塊 描述區(qū)塊 | description 描述 描述

schema rowset：結(jié)構(gòu)描述數(shù)據(jù)列集 結(jié)構(gòu)描述資料列集

schema number 結(jié)構(gòu)描述編號(hào) 結(jié)構(gòu)描述編號(hào) | schema rowset 結(jié)構(gòu)描述數(shù)據(jù)列集 結(jié)構(gòu)描述資料列集 | schema 結(jié)構(gòu)描述 結(jié)構(gòu)描述

Description Logics：描述邏輯

描述邏輯(Description Logics)就是一種建立在一階謂詞邏輯之上的用于描述本體數(shù)學(xué)性質(zhì)的形式化工具 . 從表面上看來(lái),描述邏輯并不是一階謂詞邏輯的子語(yǔ)言,也就是說(shuō)它們采用的是不同的語(yǔ)言結(jié)構(gòu),但實(shí)際上描述邏輯從語(yǔ)義上對(duì)應(yīng)著一階謂詞邏輯的一個(gè)部分(fragment),

Descriptivism：描述論

后設(shè)倫理學(xué)(meta-ethics)里的自然主義(naturalism)是描述論(descriptivism)的一支. 描述論的基本想法是,道德判斷以及道德命題的內(nèi)容,是對(duì)於世界的狀態(tài)的描述,而非對(duì)於說(shuō)話者的情感AⅤ在线直接免费看、立場(chǎng)或態(tài)度的表達(dá). 而描述論之下的自然主義,