characteristic index 中文意思是什麼

characteristic index 解釋
特嶄標
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  • index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. The control system, machinery and magnetic structure of giant magnetostrictive inchworm motor ( gmim ) have been designed based on the controlling theory, characteristic of giant magnetostrictive material and performance index of the subject. the mathematic model of the inchworm motor has been founded and the simulation of characteristic has been carried out

    根據自動控制原理，結合超磁致伸縮材料的磁特性，按照課題給定的性能指標，對超磁致伸縮爬行電機的機械結構、磁路結構和控制系統進行了初步設計；建立了整個電機系統的數學建模，並對系統特性進行了模擬分析。
  3. The paper also does some deep research on the mesh characteristic of the mechanism, analyses the cause o f the cam profile error and index error during working, using object - oriented method, vc + + and pro / toolkit, performs second development to pro / engineer, completes entity proplasm of the cam mechanism using only few parameters, the press angle calculate module, error analysis module and curvature calculate module are built on the basis of it

    然後通過對弧面分度凸輪加工中產生廓面誤差及工作時產生分度誤差原因的分析，建立了計算加工和分度誤差的數學模型。應用vc + +和pro toolkit對pro engineer進行二次開發，建立了弧面分度凸輪機構的參數化設計和三維造型及壓力角、誘導主曲率等運動特性和誤差分析軟體系統。
  4. The result indicates that the index system possesses stronger science and accords the fact of outskirts and hill. 5 the index system emphasizes that synthesis agriculture of shallow hilly and flatland pay attention to the intensive using characteristic, that agriculture and forest ecology of hill and knap insist production, stabilization and conservation, and that suburban synthesis agriculture of flatland accent social security characteristic

    5從所建立的指標體系可知，在淺丘平壩農業綜合區指標體系主要強調土地的集約化利用特點，而在低山丘陵農林生態區則強調了土地的保護性、生產性和穩定性，在平壩城郊綜合農業區則著重強調了土地的社會保障特性。
  5. On the basis of improving the dramatic characteristic of fluid drive system of the platform, the electro - hydraulic servo control system of simulating platform is designed, and its characteristic is analyzed, and the corresponding control algorithm is studied in this paper. what all do is in order to make the platform of ship motion simulating simulate the motion of ship, and realize the high precision motion pose of the platform, and achieve the motion performance index required by the testing of sea sickness

    在提高平臺液壓驅動系統動態性能的基礎上，本文進行了模擬平臺電液伺服控制系統的設計、特性分析和控制策略研究，使該模擬平臺能模擬船舶運動，實現高精度的平臺運動姿態，達到暈船病測試所需的運動環境性能指標。
  6. This paper researches the basic statistical rule of oil - gas dynamic system from the systematic theory, combining with the common characteristic and structure characteristic of oil - gas dynamic system, taking the design requirement of oil field development programming into consideration, by using of functional simulation principle ( including nn method, differential simulation method ) and historical data of oil field, establishes the in - out conjunctional relationship of dynamic index of oil field development, and researches the two level index prediction of development dynamic with both oil field and oil production plant on the basis of the in - out conjunctional relationship. furthermore, this paper analyzes the " decision - making variable ", " object " and " restriction terms " by the optimization theory and set up several optimal models which compose the oil field development programming, it is following : optimization model of the production composing ( solving the optimal composing of each subentry production and cor responding cost, workload, including the onshore thin oil production, the heavy oil thermal process production, tertiary oil recovery production, and the offshore production ) ; optimization model of measure production structure ( determining the optimal composing of each measure production and measure workload, which is composed of fracture, acidulation, capital repair and so on ) ; optimization model of the production distraction ( optimal distribution of the whole oil field production to each oil production plant ) and the integrated development programming model of oil field

    本文從系統理論出發研究油氣動態系統基本統計規律，結合油氣動態系統的一般特點，結構特點，兼顧油田開發規劃設計的要求，利用功能模擬原理（含神經網路方法、微分模擬方法） ，依據油田歷史數據，建立了油田開發動態指標間的輸入輸出關聯關系，並在此輸入輸出關聯關系的基礎上研究了油田及採油廠兩級的開發動態指標預測，同時利用最優化原理，在分析「決策變量」 、 「目標」及「約束條件」的基礎上建立了多個構成油田開發規劃的「優化模型」 ，這些優化模型包括：產量構成優化模型（解決陸上稀油產量、稠油熱采產量、三次採油產量、海上產量及對應的成本、工作量的最優構成問題） ；措施產量結構優化模型（解決壓裂、酸化、大修等各項措施產量及措施工作量的最優構成問題） ；產量分配優化模型（將油田的產量最優地分配到各採油廠）以及油田綜合開發規劃模型。
  7. The calculation results show that the method designed is quite satisfactory. the models can reproduce the annual precipitation sequence and monthly precipitation sequence. and then the regional aridity index can be estimated statistically, in addition, they can reproduce the characteristic of history precipitation series

    這兩類模型分別用於生成模擬年降雨量序列和月降雨量序列作為地區乾旱指標序列，從而對所研究地區乾旱特徵量的統計特性進行估計，並對已發生的地區乾旱的重現期進行識別。
  8. To improve understanding of the processes of heterogeneous land surface - atmosphere interaction, the utilization of satelli te remote sensing is indispensadle. in this paper, with the aid of satellite remote sensing and fiend observational data which observed during intensive observation of huaihe river bain energy and water cycle experiment hubex in 1998, the surface albedo, ndvi normalized difference vegetaton index and surface temperature in regional scale of hubex could be derived. then, the distribution of regional energy balance components could be estimated. this wor provided the physical foundation for the numerical simulation of the huaihe river basin energy and water pro cesses, and is important for us to further analyze the regional distribution of surface characteristic parameters ad energy balance components with the change of the weather situation in hubex in 1998. our work is still in a developing stage, some methods of retrieval in the paper should be improved further

    利用1998年淮河流域加密觀測試驗hubex iop期間的資料，進行淮河流域能量平衡的參數化方案的研究，用noaa衛星的avhrr資料建立了試驗區地表特徵參數及能量平衡各分量的參數化方程，並對衛星遙感反演結果和試驗觀測值進行了對比，為淮河流域能量和水循環的數值模擬提供了物理依據。
  9. The dissertation has summarized the historical experience of our army competitions on wide research, analyzed roundly the requirement of the “ two competitions ” comprehensive evaluation system. it has been according as the “ compendia of construction in military grassroots ”, based on the modern mathematics and model method, been supported by the information technology and synthetically applied much method such as delphi, ahp, fuzzy, metasynthesis, wsr, etc. and also, taken the characteristic and the practical experience of the “ two competitions ” into account, the dissertation has discussed the functional structure and comprehensive evaluation index system, and also constructed the comprehensive evaluation model with the fuzzy mathematics. the dissertation has conceived firstly to put the “ two competitions ” into computer operation system

    本文在廣泛調查研究，總結我軍開展爭先創優活動的歷史經驗的基礎上，全面分析了「雙爭」活動對綜合評估系統的需求，以《軍隊基層建設綱要》為依據，以現代數學理論和建模方法為基礎，以信息技術為支撐，綜合運用德爾斐（ delphi ） 、層次分析（ ahp ） 、模糊數學（ fuzzy ） 、綜合集成（ metasynthesis ） 、物理-事理-人理（ wsr ）等方法，同時結合「雙爭」評比自身的特點和實踐經驗，探討了系統功能結構的設計思路和綜合評估指標的構建方法，並運用模糊數學理論構建了「雙爭」模糊綜合評估模型。
  10. In addition, the approximate formula for coefficient k p, ki, kd is also suggested by using characteristic index of forecast control. finally, through emulation, the fractional - order pi ~ d ~ arithmetic is compared with the integer - order pid arithmetic. the availability of the strategies and stability of systems are proved by doing some analysis and simulation

    然後利用根軌跡的方法分析了擁塞控制系統的穩定性，並在此基礎之上採用廣義預測控制方法所應用的特性指標求出了k _ p ， k _ i ， k _ d的近似計算公式。
  11. With respect to a kind of clustering problem of which both the value of characteristic index and weight of index are of linguistic assessment information, a new approach is presented for cluster analysis

    摘要針對一類特徵指標值和指標權重均為語言評價信息的聚類問題，提出了一種新的聚類分析方法。
  12. It includes the analysis to multi - media searching type and customer context " s support to the likeness and vagueness searching. while the searching - handling process and characteristic - index strategy and the likeness - matches algorithm will be introduced

    包括對多媒體查詢類型的分析和用戶上下文對相似查詢與模糊查詢的支持的說明以及查詢處理過程和特徵檢索策略和相似性匹配演算法等的介紹。
  13. Agronomic characteristic index for screening zn - efficient rice genotype

    水稻鋅營養高效基因型篩選的農藝性狀指標研究
  14. The blood flow rate in micrangium an important characteristic index in microcirculation research, and it has important meaning in physiology, pathology and pharmacology

    微血管中血流速度是微循環研究的一個重要的特徵指標，在生理、病理和藥理上均有重要的意義。
  15. In chapter 3, firstly, we do some demonstration on the long memory character and the statistical cycle of the return series using the r / s analysis method and the dfa method, and we do some research on the stability of the r / s analysis method, the difference and the contact between the two methods too. secondly we account the characteristic index and the tail index of the fractal distribution, we do some demonstr - ation study on the tail index of our country ’ s return series. lastly we summarize the results of our demonstration

    第三章中，首先運用r / s分析法和dfa法對中國股市收益率的長記憶性和統計循環周期進行了實證研究，並且研究了r / s分析法的穩定性以及r / s分析法與dfa法的區別與聯系，其次我們論述了分形分佈中的特徵指數以及尾部指數，對中國股市收益序列的尾部指數進行了實證研究，最後總結了實證研究的結果。
  16. Beginning with the problem of interlaced region between farming and herding, the boundary line of the interlaced region is calculated based on grid with 10km grid ; then the relation among land use of the region, soil erosion and erosion region is analyzed ; based on factor classification, no useful factors were neglected and stepwise regression method was used to analysis the drive of land use change ; fractal method was applied to analysis the degradation of land - use and relation among land use, soil erosion and wind - water erosion zone ; environmental variances are introduced to establish characteristic index of land use change and analysis the effect of land use change on soil erosion

    從農牧交錯帶的實質問題入手，基於10公里網格，計算農牧交錯帶的界限；在此基礎上分析農牧交錯帶的土地利用、土壤侵蝕及與風水侵蝕帶的關系；在因子分層的基礎上，剔除不需要因素，採用逐步回歸的方法，進行土地利用變化驅動力分析；運用分形方法分析土地利用的退化，並分析土地利用與土壤侵蝕的關系，引入環境變量，建立土地利用變化特徵指數，分析土地利用變化對土壤侵蝕的影響。
  17. Three - dimensional characteristic index space based distributed full - text indexing model

    基於三維特徵索引空間的分散式全文索引模型
  18. This paper briefly introduces work principle, primary characteristic index and several kinds of driving circuits of stepping motor. accordingly, the paper puts forward a kind of practical method of divided driving of stepping motor. that is, it is cutting wave constant current to drive stepping motor based on single chipped microcomputer dealing with divided current

    本文簡要地介紹了步進電機的工作原理、主要性能指標及幾種驅動電路，在此基礎上提出了步進電機的細分驅動的實現方法，即利用單片機來處理步進電機繞組的細分電流基礎上進行斬波恆流驅動。
  19. As for the internal combustion engine state evaluation characteristic index system without a relative objectivity criterion, this paper uses the data mining technique to solve the problem

    摘要針對內燃機用於狀態評估的特徵參數指標體系缺乏相對客觀的標準，研究以數據挖掘技術為基礎的內燃機狀態評估指標體系構建。
  20. The technical system evolves over time, which process parallels the micro - evolution of biological systems and illustrates the life cycle stages of child, growth, maturity and decline. what evolves is the characteristic index of the technical systems whose improvement is shown by a s - curve on the time - scale

    技術系統處于不斷的進化過程中，其進化過程類似於生物的成長過程，要經歷嬰兒期、成長期、成熟期和退出期四個階段，在時域上表現為特性參數沿s -曲線的增長。
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