幾種實用文體 的英文怎麼說

中文拼音 [jīzhǒngshíyòngwéntǐ]
幾種實用文體 英文
practical literary forms
  • 幾 : 幾代詞1. （多少, 用於詢問數量和時間） how many 2. （表示不定的少數目） a few; several; some
  • 種 : 種名詞（姓氏） a surname
  • 實 : Ⅰ形容詞1 （內部完全填滿 沒有空隙） solid 2 （真實; 實在） true; real; honest Ⅱ名詞1 （實際; 事實...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 文 : Ⅰ名詞1 （字） character; script; writing 2 （文字） language 3 （文章） literary composition; wri...
  • 體 : 體構詞成分。
  • 文體 : 1 （文章的體裁） type of writing; literary form; style 2 [簡] （文娛體育） recreation and sports;...
  1. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  2. Based on the research of relative achievements, the paper completely discuss the distributed application and the charact - eristic and the technology of web services, introduce some solution based on web of a few mainly distributed technologies which are used in commercial software today, discuss the trend of distributed system based on web services on. net framework

    本文結合軍事測繪資料管理信息化建設的實際需要，對基於webservices分散式系統的理論和技術在軍事測繪資料管理系統中的應用，進行了有益的探討和嘗試。全面系統地論述了分散式應用以及webservices的特點、實現技術，介紹了幾種主要分散式信息系統軟體的網路化解決方案，討論了應用
  3. This paper takes the example of two huge palaestra, particular introduced the whole process for the designing of pretensioned space lattice structure, from the selection of the plan, thinking of the design, the scheme for the dispose of tendon, the selection of reasonable tendon pull, structure calculate, to the last the analyse of calculate result, the analyse of structural dynamical capability, and the economy compare of several plans, particular analyzed the advantages and disadvantages of this kind of structure. this kind of structure has wide application foreground in engineering

    本文通過兩個大型體育場館的工程實例，詳細介紹了拉索預應力空間網格結構設計的全過程，從方案的選取，設計思路，布索方案，合理索拉力的選取，結構計算，到最終計算結果的分析，結構動力性能的分析，以及幾種方案的經濟比較，詳細分析了該結構形式的優缺點。該結構形式在工程界具有廣闊的應用前景。
  4. Abstract : a cad tool based on a group of efficient algorithms to verify, design, and optimize power / ground networks for standard cell model is presented. nonlinear programming techniques, branch and bound algorithms and incomplete cholesky decomposition conjugate gradient method ( iccg ) are the three main parts of our work. users can choose nonlinear programming method or branch and bound algorithm to satisfy their different requirements of precision and speed. the experimental results prove that the algorithms can run very fast with lower wiring resources consumption. as a result, the cad tool based on these algorithms is able to cope with large - scale circuits

    文摘:介紹了一個基於標準單元布圖模式的電源線/地線網路的輔助設計集成工具.它應用了一系列高效的演算法，為用戶提供了電源線/地線網路的設計、優化和驗證的功能.非線性優化技術、分枝定界演算法和不完全喬萊斯基分解的預優共軛梯度法是該工作的三個主體部分.用戶可以選擇使用非線性規劃的方法或者幾種分枝定界方法來滿足他們對于精度和速度方面的不同需求.實驗結果表明，文中所提供的演算法可以在很快的運行速度下實現更低的布線資源佔用.因此，在這些有效演算法基礎上實現的輔助設計工具具有處理大規模電路的能力
  5. Abstract : this paper first presents the general design framework of maintenance deployment system in wartime, and then studies the main design criteria : the whole responsiveness, component responsiveness and steadystate efficiency. based on the above, some basic deplyment forms are analyzed and the general design procedure is presented at last

    文摘:給出了設計戰時維修資源設置系統一般框架，提出了設計準則：整體反應性、單元反應性和穩態頻率；並運用以上準則對我軍現實活動中採用的幾種基本部署系統形式進行了分析；最後給出了戰時維修資源部署系統設計的一般程序。
  6. Secondly, this paper made some theoretic researches on its engineering classfication and applicable scope for this technology ; then combining with project example, this paper carried out scheme design for this technology, and compared some different kinds of underpinning scheme and node and structure design, and put forward the method of " reinforcce steel bar through column " to build pile cap beam, " resistant bend and shear anchored reinforce steel bar " to strengthen column consolidation effect, and the method of " steel plate hoop " to build reinforcing bar connection of the foundation beam, etc. in the process of the consturction scheme research and implement, this paper synthetically elaborated the organizaton for project construction, put forward the construction technical measure of specific aim on the artificial pile, and pile cap beam, and underground adding layer and structure stabilization, and overall structure stabilization and so on. for this project, adopt reinforcing bar concrete to brace hole wall to ensure the safety of engineering in the artificial pile construction, use flexible connection catch to make the cage hoisting easier to simplify the construction process, use the method of earthwork statified symmetrical balance in the process of underground adding layer excavation

    本文首先對于基礎托換與結構加固技術的目的和意義、國內外發展狀況進行了綜合闡述；其次對該項技術工程分類及適應范圍進行了理論上的分析研究；然後結合工程實例對該項技術進行了方案設計，對比幾種不同的托換方案和節點及構造設計，提出了「通筋穿柱法」做承臺梁， 「抗彎抗剪錨筋法」強化柱加固效果， 「鋼板箍法」做地基梁鋼筋連接點等多項技術；在施工方案的研究和實施過程中，對于工程施工組織進行綜合闡述，並就人工挖孔樁、承臺梁、地下加層及結構加固、整體結構穩定等專項施工方案提出有針對性的施工技術措施，人工挖孔樁施工採用鋼筋砼護壁確保挖孔樁的安全成型，使用柔性連接鉤進行鋼筋籠吊裝簡化施工工序；承臺梁施工採用梁主筋橫穿柱身化學膠錨固等；地下加層綜合施工技術採用土方分層對稱平衡開挖，分段挖土做筏基結構自穩等；最後對于該工程實施后的效果分析，說明該項綜合施工技術的可行性。
  7. Accounting for contingencies is one important part of uncertainty accounting ， contingencies widespread exist in enterprises ， as a special economic event ， with developments of economic ， financial relations is complex ， the contents of contingencies unceasing extend ， contingencies plays a more and more important role in financial accounting information and operation policy because theoretical and practical research of contingencies is late ， special data is little ， few pay a ~ ention to treatment of contingencies new accounting law points out that enterprises must explain contingencies arising from guarantees provided for the debit of other enterprises and pending litigation this is the first time that the law requests accounting treatment of contingencies accounting standard for business enterprises ： contingencies prescribes the recognition and measurement of contingencies and the disclosure of relevant information ， the standard is the first standard of contingencies ， improves the accounting treatment for contingencies and the disclosure of relevant information the standard will help us improve the quality of information disclosure the article is divided into five parts to discuss the first part is a general introduction of contingencies ， including the history, the classification ， the framework and so on ， all of which would help readers understand the basic concepts in the article the second part introduces recognition of contingencies ， including recognition condition and accounting of some contingencies etc the third part introduces measurement of contingencies ， including measurement principle and selection of measurement attributes the forth part introduces disclosure of contingencies ， including disclosure of contingent asset ， contingent liability etc the fifth part selects some enterprises financial report to analyse ， points out some problems of contingent disclosure ， gives some suggestions about disclosure of contingencies

    對于規范我國企業或有事項的會計核算和相關信息的披露問題，提高會計信息披露質量，保護投資者利益，具有重要的現實意義。本文試就或有事項的確認、計量以及信息披露略談一下自己的認識，對準則可能存在的不足之處提出意見和建議，並採用實證方法對上市公司或有事項的披露狀況進行了分析。本文共分五章進行論述，第一章是對或有事項的概括性介紹，包括或有事項的涵義、特徵、或有事項會計的產生、或有事項的分類以及或有事項會計的基本框架等，有助於讀者了解本文的一些基本概念；第二部分介紹了或有事項的確認，介紹了或有事項的確認條件和幾種具體或有事項的會計處理；第三部分介紹了或有事項的計量，包括或有事項的計量原則和計量屬性的選擇等問題；第四部分介紹了或有事項的披露，包括或有資產、或有負債、預計負債等的披露；第五部分選取了部分上市公司的年報進行實證分析，指出了我國上市公司在或有事項披露方面存在的問題，並提出了完善我國上市公司或有事項信息披露的建議。
  8. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  9. In addition, it puts forward a nested temporal db, which, with stronger expressive ability than others, is a breakthrough to entity - relationship model and is referred to as nter model. it also verifies the expressive ability of nter when it is applied to sidss. finally, in view of the features of sidss and the current status of salary distribution system, it conducts initial study of the sidss based on temporal - spatial relationship and the sidss with a temporally - driven knowledge database, with the aim for us to develop a consummate sidss system in the future

    本文中，介紹了時態數據庫的基本概念、發展、特點和分類；結合sidss的背景、特色及體系結構，詳細討論了sidss的時態性及其數學模型，指出將時態數據庫應用到sidss並作進一步的研究是必然趨勢，並在此基礎上研究了時態數據庫系統的模型；在探討了幾種模型之後，打破實體-關系類的模型的框框，提出了一個表達能力較強的嵌套時態數據模型，稱之為nter模型（ nestedtemporalentity - relationshipmodel ） ，並驗證將其應用到sidss系統中的表達能力；最後針對sidss的特點以及目前工資管理系統的狀況，進一步對基於時空關系的sidss系統、由時態驅動知識庫的sidss系統進行初步探討，以期今後對開發更完善的引） ss系統作進一步的研究。
  10. This paper, in the light of the special geological environment and actual project situation of the three gorges reservoir area, puts forward a comprehensive analysis and evaluation system suitable for the stability analysis of the bank landslide of the three gorges reservoir area under the premise of thorough consideration of the water influence on the stability of the bank landslide, and obtains the following achievements in several aspects that have the practical application significance and certain scientific research value : ( 1 ) it is discovered that the water activity is the primary factor of the formation of the new landslide and the revival of the ancient landslide. on the one hand, the rising underwater level reduces the actual stress of landslide ; on the other hand, the long time soaking of the underwater reduces the mechanics intensity of the landslide and the slide belt, both of which reduce directly the landslide stability ; ( 2 ) in view of the special condition of the three gorges reservoir area, this paper analyzes systematically the forces acted on the landslide of the three gorges reservoir area and the force varieties acted on the divided landslide when the water level changes between 175 meters and 145 meters. thus it is more scientific and comprehensive for the analysis of the forces acted on the landslide ; ( 3 ) this paper summaries systematically 10 kinds of typical computation projects by organic combinations of different kinds of situations in the dry season ( nature statue ), rainy season ( rainstorm or rains for a long time condition ), with 175m water level in the reservoir, during the earthquake, with the water level of the reservoir adjusted from 175m to 145m and so on, and produces

    本文針對長江三峽庫區特殊的地質環境與工程實際情況，在充分考慮水對庫岸滑體穩定性影響的前提下，提出了一個適用於長江三峽庫岸滑坡體穩定性分析的綜合分析評價體系，並取得了如下幾個方面具有工程實際意義和一定科學研究價值的研究成果： （ 1 ）研究結果發現，水的活動是新滑坡形成或古滑坡復活的主要因素，一方面是由於地下水位升高降低了滑坡體的有效應力，另一方面是由於地下水的長期浸泡降低滑體及滑帶的力學強度，這兩方面的因素均將直接降低滑坡的穩定性； （ 2 ）針對三峽庫區的特殊條件，系統分析了作用於三峽庫區滑坡體上的力系和庫水位在175m與145m間變化時滑體條塊的受力變化，從而使對作用於滑坡體上的力系分析更科學、更全面； （ 3 ）通過對滑體處于旱季（天然狀態） 、雨季（暴雨或長期降雨狀態） 、 175m庫水位、地震以及庫水位由175m調節下降至145m等各種不同情況的有機組合，本文系統地歸納總結出了10種典型計算工況，並具體給出了相應的作用荷載的計算方法，使在庫區岸坡滑體穩定性分析評價時對計算工況選擇及其作用荷載的計算更具規范性； （ 4 ）具體運用c + + builder開發了關于滑坡體穩定性綜合分析評價系統，使對滑坡體穩定性分析計算更方便、更準確； （ 5 ）將上述滑坡體穩定性綜合分析評價系統應用於重慶市豐都縣名山滑坡穩定性分析的具體事例中，分析結果表明，本文所提出滑坡體穩定性綜合分析評價方法對三峽庫區的滑坡穩定性分析是實用可行的。
  11. This paper studies the variable - voltage energy saving theory and its implementation for asynchronous motor with light load, compares several kinds of scheme of improving efficiency in detail and confirms the variable - voltage energy saving method, that is adjusting the input voltage by detecting the iron loss and copper loss of motor directly. in addition, the directness *, simpleness and availability of the method are verified by the emulational experimental results with simulink of the matlab. the circuit of the general inverter based on the tms320f240 dsp was used in this paper, and the practicable program was compiled

    本文分析了異步電動機輕載時降壓節能運行的原理，對幾種提高效率的方案進行了比較，確定了通過直接檢測電動機鐵損和銅損來實時調節輸入電壓以達到高效節能目的的控制方法，應用matlab軟體對系統進行模擬，在基於tms320f240dsp的通用型變頻器上編制了實用化的程序，形成了完整的樣機，對其進行了測試，並給出了試驗結果。
  12. All the data were analyzed by analysis of variance of spss, and it turned out some surprising and unexpected findings, which deviated from the original hypothesis : ( 1 ) chinese non - english - majored efl learners showed multiple perceptual learning modalities, which was the similar tendency with those in traditional classroom ; ( 2 ) although there was a slight decrease of the means of six instructional learning styles, there was no statistically change of the visual, tactile, kinesthetic, individual and group learning ; ( 3 ) however, there was a significant negative shift on auditory learning style of chinese non - english - majored efl learners, which was contrary to the originally hypothesis ; ( 4 ) after being analyzed as a moderator variable, gender played a significant part in the choice of instructional learning styles among chinese non - english - majored efl learners ; ( 5 ) within the group of female or male learners, it produced significant change in auditory, kinesthetic and group learning in female students while there was no significant change of all the six learning styles in male students

    而長期以來，研究者都是從理論的角度，對學習方式和計算機輔助教學進行研究，從實證角度的研究乏善可陳，基於此，本文運用定量研究的方法，著眼于調查研究計算機輔助教學對大學英語學生學習方式影響.本文以重慶大學來自8個專業的353名學生為研究對象，根據他們接受計算機輔助教學的時間長短分為三個組，進行問卷調查，對數據進行整理和分析，得出以下結論：大學英語學生傾向于多種學習方式；在六種學習方式中，有五種學習方式並沒有隨著在計算機輔助教學的環境而呈現顯著的變化；但在聽覺型學習方式上，出現了下降；從對性別的比較中，男生和女生在幾種學習方式上具有顯著的差別;而計算機輔助教學環境對男生學習方式沒有明顯的作用，卻對女生的聽覺型，體驗型和小組型學習方式有顯著影響。
  13. This paper narrates the meaning of research in the applied field of prediction for the ultimate bearing capacity of the integrate pile, introduces several typical predication methods for the ultimate bearing capacity of pile, and gives the way for making model. one of them is the partial least - squares regression method which is put forward by me with the help of mathematics knowledge. the method can offer full range analysis for the ultimate bearing capacity of pile

    本論文主要內容敘述了預測法在完整樁極限承載力中應用研究的意義，引入幾種典型的預測法對樁極限承載力進行預測，闡明了模型的建立方法及過程，其中偏最小二乘回歸預測法是本人藉助數理知識提出的一種新的預測法，用此法可以對樁極限承載力進行全過程分析，本論文最後用marc軟體進行模擬模擬預測，進一步實現了預測的實用性。
  14. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  15. The contents include : based on the previous research and the data of experimentations, the author researches and develops a kind of satisfactory semi - empirical formula of nonlinear temperature distribution, and calculates the temperature stress of rigid - framed arch bridge by the fem. the temperature effects of bridge structure by annual and sunlight temperature difference are discussed, it indicates that the temperature effect of annual temperature difference is small but the temperature effect of sunlight temperature difference is great and the temperature stress along beam depth resulted from sunlight temperature difference is nonlinear. with the comparison between the temperature effects of different position of bridge, the results show that where the section of bridge is small, the temperature stress of it is large

    本文主要包括以下內容：從理論上研究並結合實測資料發展了一種比較理想的半經驗溫度場非線性分佈公式，並將有限元方法應用於剛架拱橋結構溫度應力的計算中，對橋梁結構進行整體溫度應力分析；討論了年溫差和日照溫差引起的橋梁結構的溫度效應，表明年溫差引起的溫度效應較小，而日照溫差引起的溫度應力較大且沿梁高呈非線性分佈；分析比較了橋梁結構各個部位的溫度效應的大小，可知截面越小溫度拉應力越大，受力越不利；並對箱梁結構由於構造不同引起的縱向與橫向的溫度效應大小進行了探討，發現在頂板下緣也會出現相當大的溫度拉應力，並且梗腋的存在反而增加了頂板底部的溫度拉應力；還對幾種相近的剛構式橋型的溫度效應進行了分析對比，總結了這些橋型針對溫度效應的優劣，並提出相應的針對性措施。
  16. This paper also takes special research on such a series of questions as below : the development of embedded operating system ( os ), the advantages of linux os to develop embedded os are analyzed, the development of embedded linux os is studied from the kernel making, customizing file system, and system booting. the embedded image processing application technology, a focus is taken on the research of the relation between embedded system application technology and image processing technology when the embedded image processing application development is carried out, the new development of image processing technology in embedded system environment and the features of embedded system of image processing application are analyzed. graphic user interface ( gui ), the current popular gui technology is introduced, and the main features of them and the reasons to choose minigui are analyzed, the implementation of minigui and the method to develop graphic application based on minigui are studied, too, it works well in practical application

    本文在此背景下，圍繞在實施導彈打擊過程中涉及到的有關圖像處理設備的嵌入式化過程，對于嵌入式圖像處理系統應用技術進行了全面的研究，提出了嵌入式圖像處理系統的開發流程和步驟，並對其中的一系列問題進行了專門研究，在實例應用中取得了很好的效果，這些問題包括：嵌入式操作系統開發，分析了使用linux操作系統進行嵌入式操作系統軟體開發的優越性，並且從內核定製、文件系統裁剪、系統啟動等幾個方面研究嵌入式linux操作系統的開發；嵌入式圖像處理應用技術，著重研究了嵌入式系統應用技術和圖像處理技術在進行嵌入式圖像應用開發時的相互影響，分析了在嵌入式系統環境下圖像處理技術的新發展以及在圖像處理應用中嵌入式系統的一些特點；圖形用戶界面，介紹了目前集中流行的gui技術，並分析了其主要特點以及採用minigui的原因，研究了minigui的實現原理，以及如何進行基於minigui進行圖形應用程序的開發，在實際應用中取得良好效果；實時性研究，分析了在操作系統中影響系統實時性能的因素，研究了linux操作系統的幾種實時解決方案，並對于操作系統的進程調度機制進行了有針對性的研究。
  17. In the motion detection a method which is based on time and space is used for it can detect harmful invade object in spite of surroundings inteferre. in addition, after got the image of objects, the rectangle frame technique is used to fill the hole. in my design another part is multi - objects image tracking which is a new technique and it integrates image processing, automatic control and computer science. this technique can automatically acquire objects from image signal, get objects " position information then track them with the aid of dome

    本文中提出了若干有價值的新思想、新方法，完成了以下內容：首先，提出了數字視頻監控的功能結構，描述了數字監控系統的組成、特點和發展現狀；然後研究了適合於跟蹤監控的攝像機坐標系，提出了一種雙角度攝像機坐標以適合本系統的實際應用；討論現場圖像的預處理，其中包括灰度級變換、噪聲濾波和圖像恢復；在運動監測中，比較了幾種常用的運動檢測方法的優缺點，提出了一種基於時域和空間域的圖像檢測方法；另外，在得到運動物體的圖像時，採用矩形框技術填充由於差分圖像造成的孔洞，此方法簡單可靠，有較大的實用性。
  18. Ttis paper sms the recen research results in the topic, maks a briefly descripon of the foral risks, then researthes on the mechanism to cause them, introduces way to assess the level of anancial risk. based on it, this paper finds out the main finaniai ratios to influeoce risk through survtw, and bulld the financial riskleve forecasting model by the method of two group ofdiscdrinate analysis. ih the research, 60 listed compedes are selected as our statstical analsis samples and cataloged into two groups, which has 30 samples, one is company which is no specially wdopn st ) the othe is on the cotw ( st )

    本文對已有研究成果進行了總結回顧，接著從我國上市公司財務風險的現狀分析入手，揭示了上市公司總體財務風險的水平，並從多方面具體分析了上市公司財務風險的成因，然後介紹了財務風險評估的幾種常用方法；在此基礎上，採用問卷調查法確定了財務風險預警指標體系后，選擇滬深兩市60家上市公司作為估計樣本（其中30家為st公司， 30家為非st公司） ，運用兩組判別分析法建立了上市公司財務風險預警模型，再選擇了20家上市公司作為測試樣本，來測試已建立模型的效果；對ykf公司的財務風險進行綜合分析，其結論與運用建立的預警模型的測試結果相吻合，故對其發出了財務風險預警；最後，針對我國上市公司的實際情況，從完善公司治理機制、重塑社會信用體系等方面提出防範公司財務風險的對策和建議。
  19. There is a pretty strict limit of reliability, cost, volume and energy - consuming. real - time embedded control system is applied for firm real - time and responding circumstance. aiming at direct current servo electromotor, a set of servo experiment system is designed, exploitation flow and process of real - time embedded control system are advanced, some issues of them are paid much more attention, the satisfied effects are obtained in the real circumstance, these issues include : exploitation of embedded system, analysis of superiority of the exploitation, the exploitation of embedded linux operation system from kernel customizing and file system cutting out to system starting up is researched, some factors which effect the system ' s capability are analyzed, the settled real - time schemes of linux os and the arithmetic of preemptive priority scheduling and round - robin scheduling and latest and rapid arithmetic are researched

    本文圍繞著針對直流伺服電機設計一套伺服試驗系統，對于嵌入式實時控制系統應用技術進行了比較全面的研究，提出了嵌入式實時控制系統的開發流程和步驟，並對其中的一些問題進行了專門研究，在實物實驗中獲得了比較好的效果，這些問題包括：嵌入式操作系統開發，分析了使用linux操作系統進行嵌入式操作系統軟體開發的優越性，並且從內核定製、文件系統裁剪、系統啟動等幾個方面研究嵌入式linux操作系統的開發；實時性研究，分析了在操作系統中影響系統實時性能的因素，研究了linux操作系統的幾種實時解決方案，並且研究了基於優先級的可搶占式與可選擇的同優先級按時間片輪轉相結合的調度演算法以及最遲響應與最快處理的可搶占式調度演算法。
  20. The paper explains briefly the advantages of web - db compared with tmditional db, and the venous web - db t ~ es in different plans ; this paper discusses three ldnds of integrated model : cgi apl fat client, discusses two kinds of system architecture, analyzes in detail the accomplishment of web - db, discusses in biief windows dna system architecture, integrates web - db and dna, expands the design of web - db widi dna model. finally the paper studies security problem of web - db. the researching result of this paper shows : web - db put all the advantages of web and db together, which enables computer system to openate with db fimction ~ network function -, multimedia function -

    本文簡要地介紹了web數據庫與傳統數據庫相比的諸多優點，以及目前web數據庫在不同應用方案中的類型；討論了兩種web數據庫系統結構：混合web數據庫系統結構、 b / s模式web數據庫系統結構；闡述了web和關系數據庫處理模式的不同之處，在此基礎上討論了三種集成模型： cgi 、 api 、 fatclient ；分析了web數據庫的幾種實現技術，並分析了它們各自的優缺點和應用場所；初步探討了windowsdna體系結構，在此基礎上把web數據庫與dna相集成，進行可擴展設計；最後，在數據庫安全與網路安全問題的基礎上，從服務器安全、用戶身份驗證、對話期安全三方面研究了基於web的數據庫的安全問題。
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