In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements
本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象,選擇對斷開點和節臂球銷的位置進行優化設計,在此基礎上建立了基於
多體系統動力學的導向機構和轉向傳動機構的數學模型,運用該學科的運動學分析方法研究機構的運動
規律,編制了通用優化設計軟體。由於考慮了更
多的空間因素,取消許
多影響準確性的假設,因此建立的數學模型與傳統的方法相比更能反映實際運動
規律,得到的優化結果也更加精確實用。此外,本文還針對導向機構進行受力分析,在建立該機構的空間動力學模型后,運用
多體動力學中的動力學分析方法研究各個桿件的受力,計算出上下球鉸的約束反力,並開發出了相應的通用計算程序。
This paper analyzes the factors that influence the toxicity of lateral root of aconite and it indicates that the control of the toxicity of lateral root of aconite should be studied from such different ways as control of decoction time, grasp of administration dosage, standardization of methods of drug processing, mastery of indication and reasonable dosage and application. the paper also analyzes and discusses part of its partial toxicity mechanism
分析、整理了影響附子毒性的
多個因素,指出控制附子毒性應從控制煎煮時間、把握給藥劑量、
規范炮製方法、掌握適應病證及合理配伍應用等
多途徑著手,並對其部分毒性機制進行了分析、討論。
On the base of serious summarizing the experience of more than 20 pilot villages of the all city during the past 7 years, twice villages surveys in large scale in 1999 and 2001 ( including over 200 villages ) and thirteen pilot villages in the project of rural development by technology and education project in beijing in 2002, generalizing experience on how to develop village economy and rural development by technology and education project entirely, extrapolating the operating mechanism, management system and village development pattern in how to rely on technology to train rural elites and boom village economy especially. thereby, representing the conception, goal and operating clue of village economy and rural development by technology and education project for 21st century in beijing in detail. it is the first time to represent four operating thesis of rural development by technology and education project for 21st century in china systematically : system thesis of village productive forces ( inside ) ; regional actinoid thesis in village ( outside ), operating thesis for origin, bank and fluid, and the thesis of biology balancing and limited factors
在認真總結北京市7年
多來全市20餘個科教興村老試點和1999年、 2001年兩次大
規模村級調查( 200餘村) 、北京市2002年十三個科教興村新的試點的基礎上,全面總結如何依靠科技、教育在發展村域經濟、開展科教興村等方面的經驗教訓,特別是重點總結歸納了7年來北京市如何依靠科技、培育鄉土人才、促進村域經濟發展的科教興村的管理體系、運作模式、村級發展模式;在此基礎上,詳細闡述了21世紀北京市科教興村的概念、目標和工作思路;並在國內首次較系統地、深入地闡述了21世紀科教興村的四大運行理論基礎:村域生產力系統理論(對內) 、村域區域經濟發展輻射理論(對外) 、 「源、庫、流」運轉學說和「生態平衡理論和限制因子學說」 。
The results showed in the paddy field the bacteria were predominated, in the dry land the proportion of fungi and actinomyces was distinctly higher than the other two kinds of soil, in the woodland abundant species of basidiomycetes were found ; the natural degradation speed was low, with the degradation the number and composition of microorganisms changed regularly ; when the c / n ratio was adjusted to 25 " ? 1, the degradation remnant ratio reduced 10. 67 % than the control
結果表明,水田以細菌為主,旱地中真菌和放線菌數量最
多,林地中有大量的高等擔子菌;秸稈自然降解較慢,土壤微生物也隨著降解的進行而呈現一定的變化
規律;當調節c / n比為25 : 1時,秸稈的腐解殘留率比對照組下降10 . 67 。 2
Educational criticism at the 21st century is characterized of extensive subject, outstanding hotspot, manifold form, its participation degree exceeding all the time before, aculeate saying and clear - sighted sensibility, and deep influence. all these show its healthy development trend
它題材廣泛、熱點突出;方法靈活、形式
多樣;參與廣泛、
規模空前;話語犀利、情感鮮明;影響深刻、意義重大,向人們展示出其健康發展的勢頭。
1 adjective law is regarding as the main content of bankruptcy reorganization institution, the core of bankruptcy reorganization institution is the bankruptcy reorganization procedure formed from a series of procedural rules. the bankruptcy reorganization procedure has the characters of loose conditions, specifically objects, diversiform participants, diversiform measures and procedural priority
一、破產重整制度以程序法為主要內容,其核心就是由一系列程序性
規則構成的破產重整程序,破產重整程序具有條件寬松、對象特定、主體
多元、措施
多樣、程序優先等特徵。
In view of the problems in the supervision and management for import and export, such as the various and scattered ports, low supervision and management capacity of custom officers, and unlawful border trade for wild fauna and flora, we suggested the measures, including specifying the ports, labeling the exported wild fauna and flora, improving the cooperation between administrative departments for import and export and customs, and fight strongly against border smuggling activities, etc. the adscription of the right for examination and approval of trade species is not definite, and the examination and approval was too time - consuming
針對野生動植物進出口監管中存在的口岸
多而分散、海關關員現場監管能力弱、邊境野生動植物非法貿易等問題,提出採取限定進出口口岸、對出口野生動植物進行標記、加強進出口管理部門與海關的合作及嚴厲打擊邊境走私活動等具體管理措施。鑒於野生動植物進出口審批存在物種管理權屬不明確、審批過程太長等問題,提出加強法制建設並採取相應的技術措施加以
規范和完善的具體建議。
3. the mathematical model for heat and mass transfer in the adsorbent bed is established, the porous of adsorbent, the flow of adsorbate in adsorbent, the characteristic of non - equilibrium adsorption are combined in the model, and a more accurate model of fluid flow in porous media - ergun model is adopted
它綜合考慮了吸附劑的
多孔介質結構,吸附質氣體在吸附劑內的流動,吸附的非平衡特性等,並且在吸附質氣體流動模型的選擇上,採用了ergun
多孔介質流動模型,比常
規的數學模型更全面準確地描述了吸附床傳熱傳質的動態特性。
It has been two years since aeolus automobile co. ltd was founded. in the two years, aeolus company is famous for its little investment and outstanding achievement. the bluebird selling like hot cakes makes the decision - makers of dongfeng group think the marketing modes of the group renewedly
風神汽車有限公司成立的短短兩年
多時間里,其投資
規模之小,經營業績之好,為中國汽車業所矚目,風神藍鳥汽車在不到兩年的時間里在市場上的迅速走紅,更使得東風公司決策者們對整個公司的營銷模式有了新的看法。
Based on the frequent occurrence of international aerial crimes, the rampancy and cruelty of criminals and the reality of brutal consequence, the essay analyses the features of the crime of aircraft hijacking, the crime of imperiling international civil aerial security and the crime of obstructing international aerial navigation with the component terms from three important international conventions on punishing aerial crimes in order to help people to appreciate the appearance and the essence of typical international aerial crimes deeply, to regard the motion of the crimes and to overwhelm the offence forcefully. based on the core of the legislative status of international civil aerial security, the jurisdiction of the aerial crimes, one emphasis of the article is to clarify concrete clauses on jurisdiction in the three conventions and analyses the important principle of " aut reddere, aut punire ". based on the problems on the jurisdiction of crimes in international society, it quests the implementation of t he principles of jurisdiction, pleading and extradition in the three conventions deeply
基於目前國際社會航空犯罪時有發生,犯罪分子猖獗狠毒,危害後果十分殘重的現實,本文從國際社會關于懲治航空犯罪的三個重要國際公約(東京、海牙、蒙特利爾公約)中
規定的各種航空犯罪的定義入手,深入展開了對劫持航空器罪、危害航空器飛行安全罪、危害國際民用航空機場安全罪的犯罪特徵及其構成條件的分析,以期幫助人們更深刻認識這些典型的國際航空犯罪的表現及其實質,嚴密注視這些犯罪的動向,對其進行及時有力的打擊;鑒于國際民用航空安全法律地位問題的核心是解決航空犯罪的管轄權問題,本文重點闡釋了三個公約關于管轄的具體
規定,並側重分析了「或引渡或起訴」的重要原則;鑒于目前國際社會打擊國際航空犯罪管轄方面存在諸
多實際問題,本文對公約
規定的管轄、起訴、引渡原則的實現方式作了深入探討;鑒于各國在國內立法上對于空中犯罪的懲治、對違約國的制裁、對這類犯罪的預防措施等方面存在一些漏洞,本文根據目前掌握的一些資料,在獨立思考的基礎上,提出了一些不成熟的看法及建議,以期對國際社會懲治航空犯罪貢獻自己微薄之力。
Perfect contempt of the world, a lively desire to advance in virtue, a love for discipline, the works of penance, readiness to obey, self - denial, and the endurance of every hardship for the love of christ, these will give a man great expectations of a happy death
凡現今輕賤世俗,切望前進,守好會
規,
多行苦工,爽快聽命,不隨私情,為愛耶穌的緣故甘心忍受各樣的艱難,像這樣的人,臨終的時候,有大希望。
A multivariable fast constrained dmc algorithm is presented, which adopts improved model to remove truncation error, and computes one control move to optimize one point of future horizon for each output. compared to traditional dmc algorithm, this algorithm reduces calculational burden greatly, and loses less performance. it has practical significance for some factories that are short of money to achieve advanced control
作者給出了一種
多變量有約束快速dmc演算法,該演算法與常
規多變量有約束dmc演算法比較,極大減小了計算負擔,而性能上損失很少,可以在現有的dcs系統上進行二次開發,對於一些資金缺乏的工廠在現有dcs系統基礎上實現先進控制很有實際意義。
It is seen as amelioration of general single - site and multi - site communication system. and it is also seen as supplement of trunking communication system
它可以看作常規單基站通信系統和常規多基站系統的改進和集群通信系統的補充。