The existence theorem of multiplier integrating factor 乘積型積分因子的存在定理
This article gives a new definition of complex integrating factor about first order ordinary differential equation and a new existence theorem of a type of integral factor and calculation formual , and the resuct in this paper amplifies the conclusions in the relevant reference 摘要本文推廣了一階微分方程復合型積分因子的概點,給出了復合型積分因子的存在定理和計算公式,所得結果涵蓋并推廣了相關文獻的結論。
To improve environment and occupational health and safety integrated system to adapt the development and change of system standards so as to uninterruptedly raise the level of modern management of occupational health and safety is an integrated factor for sustainable development of the enterprise 改進環(huán)境和職業(yè)健康安全管理整合體系,以適應體系標準的發(fā)展變化,不斷提高企業(yè)的現(xiàn)代安全健康管理水平是企業(yè)可持續(xù)發(fā)展的重要因素。
In order to set up the right management system of the enterprise finance , firstly it should clarify the internal relationship of property right . secondly , choose the proper financial management system that depends on the integrated factors of the enterprise . they include developing strategy , development stage , and structure of management culture and organization structure 建立健全集團財務管理體制首先要明晰集團內(nèi)部產(chǎn)權關系;其次選擇合適的財務管理體制模式,集團財務管理體制模式的選擇需綜合考慮集團的發(fā)展戰(zhàn)略、發(fā)展階段、管理文化結構、組織結構等因素;最后需從財務組織及財務控制兩方面進行調(diào)整與完善。
However , in some districts pipe transport cannot forms a big ng supplying net , the extension in area of ng provision is limited , only can supply to the cities ( towns ) along the pipe ~ system , for the integrated factors of restriction , such as the rate of the people who use ng as their main fuel , the economic state and the extend of ng price of people ' s affording in a city ( town ) 管道輸送是天然氣輸送的基本方式,實踐證明,對于大規(guī)模輸送天然氣采用管道輸送是最經(jīng)濟和有效的輸送方式。但是由于輸氣干線的建設受城市氣化條件,經(jīng)濟實力,用戶氣價承受能力等綜合因素的限制,使得這種輸送方式在一些特殊的地區(qū)難以形成大范圍聯(lián)網(wǎng),供應范圍受到限制,只能向長輸管道沿線城鎮(zhèn)供氣。
First of all , i summarize the forecast model category and estimate each model in detail , then , i adopt different model to forecast demand , supply , bdi of bulk shipping market . as to demand forecast , i mainly focus on the imitating precision of primitive data , adopt grey forecast model , self - suited filter model separately , and then compose these models as a better one . as to supply forecast , i use econometrics model to describe the complicated relationship of demand , supply , bdi , gnp etc . as to bdi , i try to draw into market integrated factor , describe the relationship of bdi , supply , capacity , speed , rate of oil , navigating capital etc . then finally , i make afterwards evaluation of these models and then analyze future bulk shipping market in detail 對于需求預測,著重考慮對原始數(shù)據(jù)的擬合精度,經(jīng)過模型比較優(yōu)選論證,分別采用了灰色一階模型,改進的灰色二階、自適應過濾預測的加權組合模型,得到了相當高的擬合精度;對于供給預測,運用計量經(jīng)濟模型對供給、需求、運價、 gnp 、進出口貿(mào)易額等多變量之間復雜的相互關系進行動態(tài)模擬,定量的反映出各變量之間的因果關系;對于運價預測,嘗試引入市場綜合因數(shù)概念,化繁為簡,通過描述運價與運力供給、載重噸、油耗、航速、燃油價格、航行成本等等諸多因素的關系來進行預測。
On the basis of introducing the competitiveness theories and its evaluation methods , this paper established a set of improved theo ries and methods for the study issue . it defines the ranges to study the animal husbandry competitiveness and explains its theoretical intents in the various views of general competitiveness , department competitiveness , product competitiveness , regional competitiveness and backward industry competitiveness in animal husbandry . the measurement method and evaluation system of international competitiveness in animal husbandry , the method of comparative advantage and the method of integrated factors , are put forwards 本文在借鑒競爭力理論及評價方法的基礎上,確立本主題研究的理論與方法,對畜牧業(yè)競爭力的研究范圍從理論進行界定,并從畜牧業(yè)總體競爭力、畜牧業(yè)部門競爭力、畜牧業(yè)產(chǎn)品競爭力、畜牧業(yè)區(qū)域競爭力、畜牧業(yè)后向產(chǎn)業(yè)競爭力等主要方面進行理論內(nèi)涵的闡述;提出比較優(yōu)勢法、綜合指標法等畜牧業(yè)國際競爭力的測定方法和評價體系。
百科解釋
In mathematics, an integrating factor is a function that is chosen to facilitate the solving of a given equation involving differentials. It is commonly used to solve ordinary differential equations, but is also used within multivariable calculus when multiplying through by an integrating factor allows an inexact differential to be made into an exact differential (which can then be integrated to give a scalar field).