自行式平地機 的英文怎麼說

中文拼音 [hángshìpíngde]
自行式平地機 英文
motor grader
  • : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
  • : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  • : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
  • : machineengine
  • 自行 : 1 (自己做) by oneself 2 (自動) of oneself; of one s own accord; voluntarily 3 [天文學] proper...
  1. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆採用曲柄連桿、游梁沖擊構,使鉆具有兩種沖擊功能;正常鉆進以連桿沖擊為主,遇到特殊情況,用連桿沖擊不能鉆進時,可轉為卷揚沖擊,沖程可調,因連桿沖擊構連續工作,所以實現了動沖擊鉆進,可提高鉆進效率,減輕勞動強度;採用泵吸反循環的方排渣,既能有效解決卵礫石層、堅硬層等特殊層鉆進的困難,又很好解決了沖擊鉆效率低下的問題;採用直齒圓柱齒輪差速構作為主卷揚的雙筒同步構,既保證了鉆具處于衡狀態,又大大簡化了該構設計,降低了成本;該鉆底盤走移位採用步履;鉆塔採用液壓起立,減少了輔助作業時間。
  2. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法》建造了抬梁殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造理及結構功能進了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁殿堂間架模型振動臺試驗,測定了殿堂木構架結構振周期,震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進了定量分析。
  3. Based on this algorithm, an end - to - end rate - based transport protocol named the trinomial protocol is developed, in terms of individual performance and capacities, the trinomial protocol provides much better transmission service than current tcp or udp protocols : it minimizes transmission delays and delay jitter by omitting re - transmission ; in the steady state, its transmission rate is smooth ; and when available network bandwidth increases / decreases, it adapts to the change quickly

    基於該制,開發了基於速率的點對點三項協議。在個體性能和容量方面,三項協議提供了比當前tcp和udp協議更好的傳輸服務;在穩態,它的傳輸速率是滑的,並且當可用的網路帶寬增加或減小時,能迅速而適應改變。
  4. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準正弦波反電動勢無刷直流電動在120導通方、 180導通方同步svpwm三種控制方下的轉矩脈動系數、轉矩電流比等方面進了全面的分析與比較,模擬研究和實驗結果表明,當反電動勢的頂寬度小於107電角時,採用同步svpwm控制方法可以在不損失轉矩電流比的基礎上,更有效抑制電磁轉矩脈動。
  5. Being a widely utilized public ip platform, it is susceptible to security attacks of all nature, as outlined in the following areas : the open nature of the ip internet systems - increase of foreign attacks, for example dos / ddos attacks ; the current weakness of the existing operating system ' s internet protocol ; mainframe, and lack of an evaluation standard for back office systems, the inevitable problem of illegal internal access, the lack of guidelines for record keeping and post attack documentation processes, hi addition, still in existence, are managerial problems including the lack of securit y knowledge amongst the workforce and the inexistence of a complete set of security guidelines. to guarantee china telecom ' s 163 / 169 system ' s reliable functions, to protect the user ' s interests, at the same time, insuring quality service, it is necessary to adapt p2dr model as a solution to the current security issues. supported by the modern secure theory and made the secure implementation abundant project practices, this paper gives the general secure design for the chongqing public ip network using p2dr secure model

    中國電信建設的公眾ip網對我國internet的發展起著決定性作用,重慶電信163 / 169網際網路是國家骨幹網在本的延伸,擁有7個核心節點(採用cisco12012 、 2 * 2 . 5gdpt環) ,三十八個匯接節點,能提供寬帶,窄帶多種接入方的公眾ip網,現擁有近20萬用戶,佔全市網際網路用戶四分之三以上,作為這樣一個擁有眾多用戶,開放的ip臺,會受到各種各樣的安全威脅,主要表現在ip網路的開放性,來外部的攻擊增多,如dos / ddos攻擊;所使用的操作系統運的網路協議身的脆弱性;主、網路設備的配置是否缺乏評估手段;不可避免的內部非法訪問;缺乏必要的攻擊審計作為犯罪取證,出此之外,還有管理上的一些問題,如人員安全意識不強,安全制度不夠健全等多方面原因。
  6. Counters for applications for various permits and certificates for trade or import export purposes of the agriculture, fisheries and conversation department, applications for incorporation and registration of companies, public searches of the companies registry, registration services for medical and healthcare professionals, registration and licensing services relating to chinese medicines, school dental clinics, sai ying pun dermatological clinic and chai wan social hygiene clinic of the department of health, shroff for receiving payment of debts damages of the department of justice, some support services to schools, teachers and the general public provided by the education and manpower bureau, registration services for electrical workers, lpg cylinder wagons, lifts and escalators, builders lifts tower working platforms and amusement rides provided by the electrical and mechanical services department, processing of sick leave clearance for employees claiming work injury compensation by the labour department, sections dealing with family litigation and insolvency matters and criminal matters of the legal aid department, licensing and port formalities at four marine offices and advance booking of professional ship surveying and inspection service of the marine department, services for offenders and medical social services at department of healths kowloon bay integrated treatment centre provided by the social welfare department, road driving tests and driving ability assessment services to people with disabilities provided by the transport department and customer enquiry centres and meter testing services of the water supplies department will move to a five - day week with effect from january 1, 2007

    漁農然護理署處理貿易或進出口許可證和證明書申請的櫃臺公司注冊處的申請注冊成立公司及辦理公司登記服務公眾查冊生署的醫護專業人員的注冊服務中醫藥注冊和發牌事務學童牙科診所西營盤皮膚科診所及柴灣社會生科診所律政司的接收償還債款損害賠償繳費處教育統籌局為學校教師和公眾提供的部分支援服務電工程署的電業工程人員石油氣瓶車升降動梯建築工升降工作臺及動游戲的注冊服務勞工處為申索工傷補償的雇員辦理銷假手續法律援助署負責處理家事訴訟清盤及刑事事宜的組別海事處的四個海事分處的發牌服務及關務專業船舶檢驗及檢查服務的預約服務社會福利署的違法者服務及於生署九灣綜合治療中心提供的醫務社會服務運輸署的路試駕駛考試及殘疾人士駕駛能力評估服務,以及水務署的客戶諮詢中心及水表測試服務等,都會在二零零七年一月一日起推五天工作周。
  7. The general legislation division is responsible for public safety through the administration of a range of ordinances. its main duties are to ensure safe operation of lifts, escalators, trams, amusement rides, aerial ropeways, the peak tram, builders lifts and tower working platforms

    一般法例部負責執多條與保障公眾安全有關的法例,該部的主要職責是確保升降動梯、電車、動游戲、架空纜車、山頂纜車、建築工升降及塔工作臺的操作安全。
  8. Nacpro apparel pattern making system has great progress in the intellectualized and humanized operation. original database management mode, intellectualized automatic pattern - making, auto - grading and customized system, entirely opening unlimited basic block library, linkage operation of pattern modifying, substantial mark lib and line lib in the system or setting, point parallel line - cutting grading and 3d re - grading or more - times grading, marker making for traditional textile irregular textile knitted textile, etc., auto - matching plaid marker making, beds marker making and double - deck bed marker making, automatic marker making which can be modified by hands any time. we do everything to help the users operating conveniently, quickly and economically

    隨著計算技術不斷發展,在我公司全體員工的努力下, nacpro服裝制板排板系統在智能化操作和人性化操作方面的綜合能力大大提高,新穎的數據庫管理模智能化的動打板動放碼及度身定做全開放的無限量原型板庫打樣后修改紙樣的關聯聯動操作大量系統和定義的記號庫及線型庫碼點線-切開線多種放碼方相結合併可進二次多次立體放碼傳統面料不規則面料針織面料等不同面料的排料方動對格排料分床及高低床排料動排料並可隨時與手動相結合的人工可干預智能排料我們所做的一切,都是為了讓用戶操作得更加方便快捷節約時間節約面料,我們可以肯定說, nacpro將以其嶄新的面貌,無愧成為當今同業的勝出者。
  9. Associated with the study of lighter hydrocarbon constituent, carbon isotope, biomarker and inclusions, adopted the technique of oil source correlation on whole oil samples, it can be confirmed that the hydrocarbon source of viscous crude in permian, in the east slope of jimusaer depression, is pingdiquan formation mudstone ; carboniferous oil comes from carboniferous source rock. meanwhile, the causes of oil formation are investigated based on datum of reservior geochemistry : viscous crude of permian is the result of biodegradation and low maturity working together, and that lighter hydrocarbon constituent of carboniferous oil is missing. at last, the mode and mechanism of the oil pool formation are analysed in the study area according to the structure phylogeny, sedimentary history, and data of reservior geochemistry

    本論文根據輕烴、碳同位素、生物標志化合物等資料,運用全烴球化學油源對比方法進油源對比,得出吉木薩爾凹陷東斜坡區二疊系的稠油來泉組泥巖,石炭系的稀油來石炭系本身源巖;同時,根據化資料研究了原油的成因,認為二疊系稠油是生物降解和成熟度較低共同作用的結果,石炭系的稀油存在輕組分散失現象;最後,綜合構造、沉積、烴源巖和油藏球化學資料,分析了吉木薩爾凹陷原油的成藏制和模
  10. Have bore stage car, grab, fork - lift truck, self - propelled to bridge machine, booth shop machine, roller, bulldozer, land leveler, tong carries car of stage of build by laying bricks or stones of line of pump, hydraulic pressure, crane, complete station the construction such as appearance, ride meter, dynamo and detect professional equipment 850 ( set ), technology of average per capita equips twenty - five thousand eight hundred yuan

    擁有鉆孔臺車、挖掘、裝載架橋、攤鋪、壓路、推土、砼輸送泵、液壓襯砌臺車、吊車、全站儀、測震儀、發電等施工及檢測專業設備850臺(套) ,人均技術裝備2 . 58萬元。
  11. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實驗結果分別建立了以h和c為變量的生物質能量預測經驗公,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數進了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、械設計學原理,推導、建立了轉錐閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  12. To control the parameters of the protocol easily, we should design the physical system to connect with the pc. therefore, it is very useful to realize the physical systems based on the routing protocol. at the beginning of the paper, the paper introduces the contents of the ad hoc network and wlan

    它的路由協議是基於linux臺下開發出來的軟體,為了能夠控制協議中的參數,如打包時的幀格, crc碼的格,傳輸時延控制,這就需要無線網卡來連接到計算終端配合該協議的傳輸和運,所以如何更好實現它的硬體臺,則是有很好的現實意義。
  13. The article has researched the intention of agricultural industrialization which is guided by market and mainstay enterprises, based on agricultural product base organized by a lot of families, and characterized by joint management and mutual benefit. it also realized production specialization, product commercialization, service socialization and etc. the article has also researched the existing conditions of agricultural industrialization both at home and abroad. although it is different in national conditions and actual practice, the developed countries follows the market economic law and naturally steps on the road of agricultural industrialization. as the continuous reforming and opening up, china actively explores and enhances the management level of agricultural industrialization. the writer uses system changing theory, scale management theory, trade expense theory. market system theory and industrial economics theory, to put forward the main type of mainstay enterprises, which is divided by ownership, organization form, contact form and product. the writer thinks that development of mainstay enterprises can promote effective joining between small production and big market, the developing of high - benefit agriculture, establishing trade / industry / agriculture operation system, region economics and joining process between urban area and rural area. the existing conditions in strengthening the mainstay enterprises in zhaoyuan embodies continuous expanding in scale. continuous widening in fields, continuous enhancing in benefits, continuous improving in techology and quality. by finding the problem and shortage in product quality, developing ability and scale strength, the article has put forward the following views : face to market and enhance quality and techological content of agricultural products ; enforce flexible policy and investments ; establish fair and reasonable benefits joining system. the article has also put forward the countermeasures and suggestions on enhancing the enterprises ' management level

    文章研究了農業產業化經營的內涵,明確其以市場為導向、以龍頭企業為依託、以一大批農戶組成的農產品生產基為基礎,形成農工商有結合、風險共擔、利益均沾的本質特點,表現出生產專業化、經營一體化、企業規模化、產品商品化、服務社會化等特徵。分析了國內外產業化經營的現狀,認為盡管各國的國情不同,具體的做法和叫法不盡相同,但是經濟發達國家都遵循市場經濟規律,很然走上了農業產業化經營的道路,發展中國家紛紛仿效,中國也隨著改革開放不斷深入,積極探索發展提高農業產業化經營水。作者運用制度變遷理論、規模經營理論、交易費用理論、市場制理論和產業經濟學理論,提出了龍頭企業從所有制形、從組織形、從聯系方及從產品上劃分的主要類型;認為發展龍頭企業有促進小生產與大市場的有效對接、推動優質高效農業縱深發展、建立貿工農一體化運制、振興區域經濟、加速城鄉一體化進程等作用;考察了招遠市壯大龍頭企業推進農業產業化的現狀,表現在規模不斷擴大、領域不斷拓寬、效益不斷提高、技術不斷改進、質量不斷提高等方面;找出了龍頭企業產品質量上、開發能力上、規模實力上和律上的問題和差距,提出了要面向市場,努力提高農產品的質量和科技含量,多策並舉,搞活投入制,建立公合理的利益聯結制,加強律,提高企業經營管理水等對策和建議。
  14. This article is totally divided into six chapters. it takes urbanization as background, and takes mountain cities as research objects, and takes spatial form as clues. lt analysis by synthesis the natural factor and humanistic factor and builds up the motive mechanism of spacial expansion and research the four appropriate pattern of spacial expansion : the layer expansion mode, the axis expansion mode, the centralized mode, the jumping expansion mode

    本文共分六章,以城市化快速發展為背景,以山城市為研究對象,以山城市空間形態演變為線索,對山城市的然和人文影響因子及其形態進了分析,建構了山城市空間擴展的動力制,並通過與原城市的比較對照及實踐例證,闡述了山城市空間擴展的四種典型模:緊湊圈層、軸向伸展、集約內涵和多核跳躍
  15. The tingjing group is in putting into effect the course of mrpii system, a mrpii does not only regard one set of software to come to popularize and is regarding a management model to recommend ; by way of mrpii system and computer network, each department and post can be covered by the system on universal ground a staff can get any information that relates with oneself vocational work by way of the cross - domain communication at any time, gain the various policy decision supports of real time quantification, carrying on operation process imitates, not only can quicken the rate of progress planning the work such as formulation and cost accounting etc greatly, and still economize that the report form and data shortened whole vocational work period in the delay that the difference function circulated between the department, and retrenched the personnel of work, and raise the efficiency managing work conquer the solid foundation for business process reengineering ( bpr ), takes mrpii as the foundation, bpr has been in progress in the company and builded performance " s evaluation system

    引入mrp管理系統是提高管理水的一個有效途徑。天健集團在實施mrp系統的過程中,不是把mrp僅僅作為一套軟體來推廣而是作為一個管理模來引進的;通過mrp系統和計算網路,各部門和崗位可以普遍被系統覆蓋,員工通過網路隨時可以得到與己業務有關的任何信息,取得實時量化的各種決策支持,進業務流程模擬,不僅可以大大加速了計劃制訂、成本核算等工作的進度,還節省了報表、數據在不同職能部門之間流通的延誤,縮短了整個業務周期,精簡了事務性的人員,提高了管理工作的效率。還為實現組織的扁化提供了條件,為流程重組打下了堅實的基礎。
  16. An account of the basic concept, position and function of production management in an enterprise is given, the significance of production management when a company make efforts to create a good environment for it ’ s existence and development is shown ; through introducing the environment and situation faced by our country ’ s private enterprises, analyzing the problems on gao long ’ s production management, the opportunities and challenges faced by gao long company when it intends to improve it ’ s management level and to get itself developed forward are revealed. the nice future created by rapid development of our country ’ s economy for special vehicle components manufacturers which include gao long company is estimated, the threat

    本章先闡述生產管理在企業中的位和作用?生產管理對于企業獲取競爭優勢,贏得良好生存和發展空間的重要意義,在對我國專用車生產現狀?市場發展前景及公司生產管理中存在的問題進歸納和總結的過程中,揭示出高龍公司提高生產管理水?推動身向前發展所面臨的困難,展現因我國經濟快速發展給包括高龍公司在內的專用車生產企業所創造的良好市場前景,同時也指出由於競爭環境的惡化?生產技術及管理水落後而導致競爭力削弱給高龍公司所帶來的遇和挑戰,以此強調生產管理模改進的必要性和緊迫性。
  17. Differentiated from the former markers, afm neither aims at some certain factors, nor tries to establish a precise mathematic model. on the contrary, afm follows a rule of result - oriented and reallocates the network resources in an adaptive manner, and thus gains high performance in the fairness of bandwidth sharing ; 3 ) the congestion control mechanisms of the current tcp have been proved to be effective for prevention of network collapse. however, with the development of network technologies, the insufficiencies of tcp are becoming increasingly severe, especially in the environment of heterogenous networks, the throughput performance of tcp is disappointing

    與以往的標記演算法不同的是,該演算法並不針對具體某一個因素對公性的影響,也不試圖建立一個精確的數學模型,而是按「結果導向」以一種適應的方來對可用的網路資源進重新分配,從而獲得很高的公性; 3 ) tcp協議的擁塞控制制已經被證明能有效防止網路崩潰的發生,但隨著網路技術的發展, tcp協議的一些局限性也已經暴露出來了,尤其是在異構網路環境下,其吞吐量性能表現令人堪憂。
  18. This article analyses the reinforcement mechanism of pile - net composite foundation mainly, combining natural equilibrium arch theory and reinforced cushion tension membrane theory to deduce the calculation formula of the stress ratio of pile - soil in the pile - net composite foundation under embankment

    本文主要對樁網復合基的加固理進分析,並結合衡拱理論和加筋墊層拉膜效應理論推導出路堤下樁網復合基樁土應力比計算公,同時分析了各設計參數變化對樁土應力比的變化規律。
  19. It becomes more difficult to manage, integrate and share the control system real - time data when we set up the industrial real - time database because of complicated affair between every department and isomeric character of the system. a three - level - structure model and the method to establish database is provided based on corba criterion with its character of being regardless of programming languages, hardware platform and network protocol. a universal real - time database faces multi - system is also set up by learning the distributed criterion, it can realize the request broker, and the application software can visit the database pellucidly ; thus the power station simulation model can be linked with the control system such as infi90, ovation and be made use of the control object, a closed simulation and control experiment system is set up

    在創建工控領域實時數據庫時,企業各部門間的復雜事務及內部異構性給實時數據的管理、集成和共享帶來了一定的困難,根據corba規范具有語言無關性、臺無關性和網路協議無關性的特點提出基於分散計算規范corba的三層體系結構模型及建立與維護實時數據庫的方法和途徑;通過corba規范建立面向多個分散控制系統的通用實時數據庫,實現數據訪問代理,使應用軟體可以透明對實時數據庫進訪問、存取、管理;將infi90 、 ovation分散控制系統與火電廠模擬模型進有效的互連,以全物理過程模擬數學模型為對象,構建了閉環控制模擬實驗研究系統,實現數據的高效連通及管理;進而通過基於corba的實時數據庫構建一個從火電廠模擬對象到過程控制制設備再到sis系統的綜合動化試驗臺。
  20. The paper analyses and studies the general questions in the remote control system, such as the delay - time of network, software system structure, human - computer interaction technology, robot control function and real - time video transmission and so on. then we design and develop a remote control system of zjmr based on web, and apply the distributed object technological - corba to this system. it not only realizes the original system ' s mutual operation function, which is developed by different programming language, but also improves the platform independency, mutual operation function and expansibility greatly

    本文以我們設計、研製的移動器人zjmr為研究對象,在對zjmr移動器人本控制系統設計實現的基礎上,著重對遠程控制系統中的共性問題如:網路時延問題、軟體體系結構、人交互技術、器人控制功能和視頻圖像實時傳輸等方面作了深入分析和研究,最後設計並開發了一個基於web的器人遠程控制系統,並將分散對象技術corba應用於器人遠程控制系統中,不僅實現了原系統不同開發語言之間的互操作功能,而且極大提高了系統的跨臺性、互操作性和可擴展性。
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