最宜指數 的英文怎麼說
中文拼音 [zuìyízhǐshǔ]
最宜指數
英文
optimum index-
According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain
根據《隨機水文學》理論中的時間序列分析法，建立了適合三江平原井灌水稻需水量預報的非平穩時序隨機模型；通過分析降雨隨機特性，選定季節性時序隨機模型，建立了適合三江平原井灌水稻降雨預報的月平均降雨模型；根據最小二乘法，計算出幾種常用水分生產函數中的敏感指數及敏感系數，進而得到三江平原適宜採用的水分生產函數漠型及模型中敏感指數的變化規律；本文提出遺傳動態規劃法（ raga ? dp ） ，即採用改進的基於實數編碼的加速遺傳演算法（ realcodingbasedacceleratinggeneticalgorithm ，簡稱raga ）與動態規劃法（ dpsa ）相結合，推求非充分灌溉條件下三江平原井灌水稻的最優灌溉制度。By surveying the sample plot, the relations between the stabil ity of the mountai n slope of soil preparation for planting by using explosion and other factors s uch as precipitation, terrain ， were studied. by using the method of quantitative t heory i, the interrelation between the damaged degrees of soil preparation progra ms by using explosion in low mountain area with abundant precipitation and terrain factors was systematically analysed, and the mathematical models relate d were developed. the results show that the precipitation in early days and the m aximum precipitation per day are the primary factors causing the soil prepara tion program damaged. the main terrain factors of the mountain slope that affect the program stability are according to their importance, slope, position and dir ection. the suitable mountain slope for soil preparation by using explosion is th e slope of less than 25
通過典型標準樣地調查資料，探討了造林爆破整地工程的坡地穩定性與降水、地形等因子的相互關系，應用數量化理論，對在有充分降水條件下的低山丘陵區的爆破整地工程損失程度與地形因子之間的關系進行了系統分析，並建立了相應的數學模型，研究指出，充分的前期降水和日最大降雨量是引起爆破整地工程損失的激發因素；影響爆破整地工程穩定性的主要地形因子是地面坡度，其次為坡位、坡向，實施爆破整地工程的地面坡度以不超過25為宜。The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k
摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable
本文的主要工作是：對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結，指出當前預應力鋼結構工程實踐中存在的主要問題；闡述了預應力鋼結構的受力機理，並指出預應力鋼結構的適用范圍和特點；在考慮結構應力和變位約束的條件下，建立預應力鋼結構優化設計模型；提出多次預應力鋼結構優化設計方法和步驟，採用線性規劃和滿約束準則相結合的優化方法，可優化設計出施加的每一級預應力的大小，並得到結構各部分的優化截面；對多次預應力最佳的施加次數作了分析，並建議以2 3次為宜；為驗證文中理論和方法，分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計，經濟效益明顯；對水平平行弦鋼桁架的幾種施加預應力的方案進行比較，對于局部布索，預應力只對下弦起到卸載作用，對上弦和腹桿基本不起作用；而整體布索預應力除對下弦卸載外，對索折點以外部分腹桿也起到卸載作用，經濟效益好於局部布索。The sensitivity analysis of design parameter of subgrade and pavement are used to confirmed the degree of impact on working state with change of the design parameter, it is the rational and economy that the range of design parameter are proposed. structure combination design is used to proposed basic structure of qinhuangdao ' s asphalt pavement in view of local natural environment, build material, traffic classification and soil grades. this paper puts forwards suiting 39 kinds of typical structure of qinhuangdao ' s asphalt pavement according to the actual structure, experimental section long - term observation, extensive surveys, structure theory ' s analysis and calculation
在公路等級、交通量等級、土基等級及路面材料參數研究的基礎上進行路基路面設計參數敏感性分析，用以確定設計參數的變化對路基路面工作狀態的影響程度，並據此給出了經濟合理的路基路面設計參數范圍；結合本地自然環境、築路材料、交通狀況及土質情況進行路面結構組合設計，提出了適宜於秦皇島地區公路瀝青路面的基本結構；最後根據實際路面結構、試驗路的長期觀測、大量調查與路面結構理論分析計算相結合，提出並推薦適合秦皇島地區的39種瀝青路面典型結構，這是本課題的主要宗旨，其研究成果將直接指導設計人員的工作，並避免隨意性和盲目性，對加快秦皇島地區公路交通事業的發展將具有十分重要的意義，對其他地區也有一定的指導意義。Conclusions as following have got through test study : ( 1 ) when impact compaction technology is applied to treat collapsible loess subgrade, the effect depth may be treated generally can not override 80 cm and impact compaction pass is optimum at 30 times. ( 2 ) for stratified impact compaction of subgrade, when compactness of each level reaches codeslstandards loose laying depth of 80 cm fits 40 impact compaction pass is the optimum combination of subgrade construction. when average compactness in each level reaches codeslstandards loose laying depth of 80 cm fits 30 impact compaction pass is the optimum combination o ( 3 ) the quality control method may request impact compaction pass as the main control index and at the same time the final division settlement is less than 10 % of total settlement as large area subgrade is constructed
通過試驗研究主要得出如下認識：沖擊壓實技術處理濕陷性黃土地基時，其有效處理深度一般不超過80cm ，沖壓遍數以30遍左右為宜；對路基分層沖壓，在要求土體中各點壓實度均達到規范要求時，路基沖壓最佳組合為虛鋪厚度80cm 、沖壓40遍；在只要求土體平均壓實度達到規范要求時，路基沖壓最佳組合為虛鋪厚度80cm 、沖壓30遍；大面積施工時，質量控制方法可按照在以沖壓遍數作為主要控制指標的同時，要求最後10遍分計沉降量小於累計沉降量10 ；在施工單位自己購置沖擊壓實機情況下，與傳統施工相比較，沖擊壓實技術是一種既能節約資金又能大量縮短工期的施工方法。The fan cost index is based on four average - price tickets, two small draft beers, four small soft drinks, four regular - size hot dogs, parking for one car, two game programs and two least - expensive, adult - size adjustable caps
球迷消費指數包括四張平均價格的票價，兩瓶小瓶生啤酒，四瓶小軟飲，四個熱狗，一個臨時停車位，兩個球迷活動，兩頂最便宜的帽子。In order to evaluate the eco - economic adaptability of crops production, the concepts and calculative methods of ecological potential capacity and market potential capacity were put forward, the dynamic threshold value system of the indexes for the economic adaptability of different crop - region combinations was established, the calculative method of the single eco - economic adaptability indexes, the comprehensive eco - economic adaptability indexes which reflects the principle of minimum factor and the apparent eco - economic adaptability indexes and the regional comprehensive apparent eco - economic adaptability indexes which reflects practical situation of crops production were built up. 12 representative counties in jiangsu province were selected to analysis, and 77 combinations of eco - economic adaptability indexes, apparent eco - economic adaptability indexes of crop - region and 12 regional comprehensive apparent eco - economic adaptability indexes were obtained
摘要為評價作物生產的生態經濟適宜性，提出了生態容量潛勢和市場容量潛勢的概念和計算方法，建立了適用於不同作物地區組合的、各指標閾值具有動態性的生態經濟適宜性評價指標閾值體系，構建了單生態經濟指標適宜性指數及反映最小因子定律的綜合生態經濟適宜性指數、表現作物生產現狀的表觀生態經濟適宜性指數和地區綜合表觀生態經濟適宜性指數的計算方法。Finally, the proper parameter of product process is given to direct the production of coalstore - shale fired perforated or hollow brick
最後，通過以上研究對多孔磚、空心磚的生產工藝提出適宜的生產參數，用以指導生產。In part four, taking wuwei oasis as a case study, the author uses gis to get landscape map and data, and calculates pattern index by means of stat - analysis software. the results show that the unique water and soil conditions in shiyanghe river drainage basin determine that wuwei oasis is an optimal region for farming. wuwei has grown into a steady manmade oasis after an exploitation of more than two thousand years ; at the same time human exploitation range gradually expands outwards
利用gis軟體進行景觀制圖並獲取數據，並藉助統計分析軟體進行了格局指標的計算，結果顯示：石羊河流域特有的水土條件決定了流域中部盆地的武威綠洲最適宜於農耕生產，經過兩干多年的開發過程，在這里逐漸形成了穩定的人工綠洲的同時，人類對該區域水土資源的開發利用不斷向外擴展。Choose a sunscreen with a minimum of spf15, higher if you re very fair skinned or have sensitive skin, have freckles or moles, or a history of skin cancer, or for use on children. try a sunblock stick for lips cheeks and nose
如果您的皮膚較白或屬于敏感皮膚、有雀斑或痣，又或家族成員曾患皮膚癌，宜選擇防曬指數最少15或以上的防曬用品；兒童也應使用防曬指數最少15或以上的防曬用品。And it is indicated that the corrosion residual life of the pressure vessel and pipeline shouldn ' t be calculated with normal distribution model since the coefficients of variation of maximal corrosion depth and corrosion rate are often more than 0. 2
最後指出最大腐蝕深度和腐蝕速率等參數的變異系數往往大於0 . 2 ，因此不宜用正態分佈模型進行壓力容器與管道耐腐蝕剩餘壽命的計算與分析。分享友人