經驗對比常數 的英文怎麼說

中文拼音 [jīngyànduìchángshǔ]
經驗對比常數 英文
empirical correlating constant
  • : 經動詞[紡織] (把紡好的紗或線梳整成經紗或經線) warp
  • : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
  • : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : 數副詞(屢次) frequently; repeatedly
  • 經驗 : 1 (由實踐得來的知識或技能) experience 2 (經歷) go through; experience; 經驗教訓 lessons from ...
  1. In this paper, the influence of cycles of drying and wetting on strength and deformation are studied by means of routine direct shear apparatus, triaxial apparatus and light consolidation apparatus which include : the influence of force of constraint on strength, the total stress strength of expansive soils with different saturation degree, the influence of cycles of drying and wetting on the total stress strength, the relation between saturation degree and compression modulus and that between saturation degree and void ratio, the influence of cycles of drying and wetting on the effective stress strength, the relation between saturation degree and generalized suction

    本文利用規直剪儀、三軸儀以及輕便固結儀,分別非飽和膨脹土的強度和變形特性以及干濕循環強度和變形的影響進行了一系列的試研究。以飽和度、干濕循環次為變量,分別探求了外力約束膨脹土強度的影響,不同飽和度膨脹土的總應力強度特性,干濕循環非飽和膨脹土總應力強度的影響,飽和度與壓縮模量以及孔隙的關系,干濕循環飽和膨脹土有效應力強度指標的影響,廣義吸力與飽和度的關系,建議了一組計算非飽和膨脹土變形及強度特性的公式。
  2. It is high performance concrete of low water - binder ratio. with its own gravity and without any vibration, it can fill up the space automatically. with high adding quantity of fly ash and slag, high quality water reducing agent and other compound admixture is the most important technology of this kind of high performance concrete. scc focus on high workability at the same time on high strength and high durability through choosing the composite of aggregate, additives, content of cementions material, admixture reasonably and the optimum design of mix proportion

    本文研究了採用吉林省本地原材料和規生產工藝配製c40自密實混凝土的製作技術,採用水膠、粉煤灰摻量、砂率、膠凝材料總量四個因素進行配合的正交設計,試分析了自密實混凝土拌合物的工作性以及硬化后的力學性能、耐久性和生產與施工注意事項,並濟性做出了客觀評價,本次試為吉林地區自密實混凝土的推廣應用提供了據基礎。
  3. Based on rain drop size distribution ( dsd ) data measured in qingdao, guangzhou and xinxiang, the radar reflectivity factor z for spherical rain drops, the radar reflectivity factor zh and differential reflectivity zdr for oblate ellipsoid rain drops have been calculated. the relation of reflectivity and rainfall rate for conventional meteorological radar and the relation of reflectivity, differential reflectivity and rainfall rate for multiparameter radar are regressed, the performance difference of two kinds of radar for measuring rainfall and difference for measuring rainfall in different regions are also discussed

    基於我國青島、廣州和新鄉地區雨滴尺寸分佈據,計算了球形雨滴雷達反射因子,橢球形雨滴雷達水平極化反射因子和差分反射率,回歸給出了這些地區的規氣象雷達反射因子與降雨率的關系和多參雷達水下極化雷達反射因子、差分反射率和降雨率關系,並其測雨精度和地區差異進行了較。
  4. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容:一、選取了見的熱膨脹系大的材料製作封裝元件,過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏穩定性及復用性,與光纖相容性較好;二、光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實,得出了初步的結論;三、溫敏和溫度補償式封裝的實據進行了詳細的分析和,從字上溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析,在大量實據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實誤差。
  5. The collapsible loess is often met during the construction of the high - grade highway in the loess area, and the main failure is the uneven subsidence of the roadbed and the culvert, which affects the safe usage of the roadbed and the culvert, etc. directed against this, based on the chankou - lanzhou freeway construction, the paper analyzes the application of the composite ground formed by lime - soil pile under the bridge and designs the project, discusses the rules of the contact pressure, the stress ratio of the pile and the soil, compares the p - s curves of one pile, the composite ground formed by one pile and the composite ground formed by two piles based on the in - situ plate loading test, evaluates the bearing capacity of the composite ground of the project

    黃土地區的高等級公路建設中遇到濕陷性黃土問題,其病害類型主要是地基土受水浸濕后引起路基、橋臺、涵洞等的不均勻沉降,直接影響路基、構造物等的正使用。針此問題,本文依託甘肅讒口至蘭州柳溝河高速公路建設工程,橋基灰土樁復合地基應用的可行性進行了深入分析,根據具體工程進行了合理的設計與計算,並配合現場靜載荷試及壓力盒實測據,探討了基底應力分佈規律,樁土應力,變形模量的變化關系,分析了單樁、單樁復合和雙樁復合的p ? s關系,橋基灰土樁復合地基承載力進行了整體評價。
  6. The result indicates that the method is as accurate as the imo ' s method. secondly, three methods being generally adopted to measure diesel power on - board ship are itemized and roundly compared, emphasizing on their principles, steps and error analysis

    然後,以imo規定的「實船測試相關參的儀器的允許偏差」為基準,目前通採用的各種柴油機功率實船測量方法:示功圖法、法和扭矩儀法進行了系統的分析較。
  7. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討,在平面運動物體運動分析的基礎上結合四種用車輪的學模型,推導出了一個通用的移動機器人堆積方程,在此基礎上分析了移動機器人的移動能力、並針兩輪差速構型推導了速度正解與逆解;使用muir和newman的運動學建模方法,推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法;在移動機器人位姿識別方法中結合差速驅動構型航位推演算法進行了分析:推導了一種理論精度較高的航位推算演算法,並使用matlab其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬;最後針本文所研究的機器人給出了一種較系統、可靠的緩沖結構設計思路,較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題;本論文研究成果已在本實室所開發的樣機上得到實現,過應用與考核證明其中的分析與設計是切實可行的。
  8. Since the suggested method makes a significant improvement in wind speed, it is more suitable for wind field estimation over complex terrain than other methods which only concerns the effect of distance. then we calculate the wind change with evaluation, last we can conclude the wind abase the hilly terrain, we find the wind in westward and center plain is much smaller than other area. while the wind in northward hilly area is much bigger with the hilly arising. the wind of chongqing is the biggest period in spring ( april ), the smallest period in winter ( january ), the wind in summer ( july ) is bigger than its in autumn ( october )

    本文利用重慶及其周邊地區的規氣象站的1951 ? 1980年30年的風速平均資料,針復雜地形風速診斷,以地理信息系統為據處理平臺,根據重慶1 : 25萬dem據,來獲得重慶市實際復雜地形的高程,提出了一種適合於起伏地形的權重內插方法,通過引入一個表示地形起伏變化程度的因子,構造了一種新的權重函,來處理復雜地形上的風速,通過與只考慮距因素同反平內插方法較發現,本方法更適合在起伏地形條件下使用;然後根據公式在地形上進行計算,得出重慶地區起伏地形下的風速分佈;得出重慶市的西部、中部平原地帶風速較小,而北部山區隨海拔高度升高風速也較大;重慶市風速最大時期為四月份,冬季一月份最小,夏季(七月份)大於秋季(十月份) 。
  9. The retaining wall reclining on the slight slope built on soft foundation is usually used in protecting the shore of river, the contradiction between the lack of impartiality in stress of the base and the small stress allowed by the foundation as well as the lack of stabilization of the breast wall is a hard nut to crack in the engineering. in the paper, a tenon - base is added under the base of the retaining wall, on the study of the choice of the parameters and formulas used in calculation and the research of theory used in calculation, method used to deal with the load, etc, the writer gives a way to crack the nut mentioned above paragraphs and presents a qualitative and quantitative analysis about them, such as the equivalent inner friction - angle ( d ) and the passive press of the clay ( ep ), etc. in the end of the paper, using modern optimization method, a design of the retaining wall reclining on the slight slope built on soft foundation is done, the result is economical, and accords with the fact

    軟基上的仰斜式擋土墻在水利工程河道護岸中遇到,仰斜式擋土墻基底偏心應力較大和軟基土地基容許承載力偏小的矛盾以及擋土墻抗滑穩定不足是工程中難以解決的難題。本文在仰斜式擋土墻設計中有關計算參的選擇、公式的選用應該注意的問題進行了研究,河道護岸軟基礎上的仰斜式擋土墻採用凸榫基礎處理的方法,就其計算理論、設計算中各荷載的具體處理方法進行了較為細致的研究,提出了解決軟基礎上的水工仰斜式擋土墻難以解決的難題的方法,並有水情況下粘土等效內摩擦角_ d 、凸榫被動土壓力e _ p等在計算中的取值提出了定性和定量的分析。最後利用現代優化方法軟基礎上的水工仰斜式擋土墻進行了結構優化設計,得出了符合實際的結果,與其它重力式擋土墻形式進行較,取得了明顯的濟效益。
  10. 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、系統地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、測定了20種見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實結果分別建立了以h和c為自變量的生物質能量預測公式,並通過r _ ( 0 . 05 )檢;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,根據實據和阿倫尼烏斯公式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函其動力學參進行了求解,解析出各種生物質的頻率因子和活化能參,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,在體視顯微鏡下不同粒度的生物質顆粒的長徑進行了實觀察和測定,得出生物質的長徑( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論生物質傳熱過程及充分熱解時間理論進行了研究,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 )根據上述實結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式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 )提出了轉錐式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。
  11. Abstract : artifical intelligence methods are implemented to simulate thebehaviors of axially and laterally loaded piles using the field observation tests data obtain ed f rom the drilled shafts and driven piles. the optimal neural network model is deve loped using only simple input data of spt - n values and piles ' geometrical featu r es etc. the analysis for r. c piles of some projects is performed adopting the bp n n and grnn models respectively, and the obtained predicated results are compared w ith the data from conventional design method. it demonstrated the obvious advanta ges of neural networks in the design of pile foundations over the traditional me thods. this paper has an important practical significance and a referential worth iness in the design of pile foundations

    文摘:根據鉆孔樁和打擊樁的原型試觀測的據,運用人工智慧方法橫向承載樁和軸向承載樁的工作特性進行模擬,並利用標準貫入試( spt - n )值和樁的幾何特性等簡單的輸入據,開發出相應的優化神網路模型;然後,運用反向傳播神網路模型和廣義回歸神網路模型分別某工程的鋼筋混凝土樁進行分析,並將求得的預測結果與規設計法的結果進行較,結果表明神網路方法傳統方法有明顯的優越性,在實際工程設計中具有重要的參考價值和現實意義。
  12. The article analyses the change trend of the parameters after the second world war and demonstrates the reverse conditions for the two accounts

    通過二戰后美國兩階段參較,分析了各參的變化趨勢,證各參的變化與實現項目收支逆轉或國外凈資產逆轉的政策選擇是否一致。
  13. Based upon the large amount of statistics through studying and researching on the site, this paper has analyzed and proved the safety, reliability, and econimy of the low - vacuum method, demonstrated the superiority to the others under detailed calculating

    在大量現場試據的基礎上,本文低真空調峰方式的安全性、可靠性、濟性等進行了充分分析、論證,並與其他用調峰方式進行了詳細,說明了低真空調峰方式在各方面的優越性。
  14. Secondly, the following two subjects are discussed according to the calculation of short - circuit current : ( l ) to verify the dynamic stability condition of wires by using simulated annealing algorithm ( sa ), the paper calculates the maximum value of rectangle wires " short - circuit electrodynamic stress and gets the conditions of their having the maximum value. furthermore, some concerned data about the verifying of copper wires are given by analysing vibration spectrum of the electrodynamic stress ; ( 2 ) in order to get the heat withstand conditions of wires, the paper discusses some common calculation methods, and then tries to study the problem applying artificial neural network ( ann ) based on heat principle of metals. the model is shown to be feasible

    其次,在電路中短路電流計算的基礎上, ( 1 )進行母線的短路動穩定校計算:採用模擬退火演算法( sa演算法)計算了矩形母線短路電動力的最大值及其取極值的條件,獲得了更為一般的結果,進而通過短路電動力的頻譜分析,給出了銅質母線的有關短路校計算據; ( 2 )進行母線的短路熱穩定校計算:討論了熱穩定校校的幾種用計算方法,從導體或電器的發熱機理出發,運用人工神網路理論母線的熱穩定問題進行計算,通過算例較,證明該方法用於熱穩定計算是可行的。
  15. Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance

    在熱輻射方向性規律的基礎上,以喜直型連續植被為例,進行了大量的monte carlo模擬,建立了輻射亮度和組分溫度植被葉面積指及土壤輻射率之間的關系。採用遺傳演算法,從熱紅外2個波段2個角度據中,同時反演混合像元組分溫度土壤輻射率和葉面積指等5個參。通過模擬的觀測據進行大量的遺傳演算法反演試,結果表明,遺傳演算法反演組分溫度非穩健,在寬松的先知識條件下,遺傳演算法可以解決不確定性反演問題。
  16. The technology of micro - electronics and calculation method was fully made in the system. how to improve the accuracy of standard orifice measurement is also discussed from the following aspects : the means of measurement and transmitter, online correction of measurement parameter and abnormal condition. all those means are used to overcome its shortcomings of less scale of measurement range, short period of checkout, more tache of maintenance and low accuracy of measure

    該系統充分利用微電子技術和計算技術以及通過實際現場總結的,主要從測量與變送環節採取的措施、相關參的在線實時補償演算法、非正情況的在線補償三個方面如何提高量精度加以論述,盡可能地彌補孔板差壓式流量計量程較小、檢定周期短、維護環節多、準確度低的不足。
  17. On the basis of the loess distribution, engineering geology and specific properties of road use in gansu province, this paper divides traffic volume grade according to the conditions of transportation of all high - grade highways which are being built and have already finished. besides, it analyses the relativity of three different test methods, establishes the related relations, and divides their strength grade after measuring rebound module of subgrade of the representative high - grade highways in gansu loess area. furthermore, it recommends the common semi - rigid and asphalt concrete design parameters by comparing the experiment in doors to outdoors, and draws up the optimized design program aga - lq based on advanced genetic algorithm and solves the non - liner optimization design model of asphalt pavement construction by computer

    本文基於甘肅黃土分佈、工程地質及路用特性研究,該黃土地區在建和已建的全部高等級公路交通狀況進行了詳細調查和分析,劃分了交通量等級;甘肅黃土地區代表性的高等級公路,利用三種不同方法實測了土基回彈模量,分析了各測試方法的相關性,建立了相關關系,土基回彈模量進行了強度等級劃分;通過室內外試較,推薦了用的半剛性材料和瀝青混凝土設計參值;利用計算機編制了基於改進遺傳演算法的優化設計程序aga ? lq ,並成功求解了瀝青路面結構非線性優化設計模型;最後計算提出了甘肅黃土地區高等級公路瀝青路面典型結構,並編制了查詢圖庫軟體cx ? lq ,供設計單位直接選用,科學簡便地解決了甘肅黃土地區的路面設計問題。
  18. The results showed that kp value increased with the increase of the initial concentration and ph value of the feed phase. the determined diffusion coefficient showed good agreement with the value that were calculated by the experiential equation given by castillo r. reactive extraction equilibrium constant kr increased with the increase of the initial concentration of the feed phase and the carrier concentration, while kr value increased slowly in the high initial concentration of the feed phase

    分配系的研究結果表明,分配系kp隨著料液苯酚濃度增大而增大,隨料液ph值增大而升高;採用多孔板法測定水相中苯酚的擴散系,並將測定值與公式估算值進行,結果表明,測定結果是可靠的;表觀反應萃取平衡kr隨著載體濃度升高而增大,隨著料液濃度的增加而增大,而在濃度較大時, kr增大趨勢變緩。
  19. The vxibus c - size and i, q channels are employed in this module design, and the sampling rate in each channel reaches 500mhz. the memoty deep of the system is 2mb each channel and cpu is high - speed embedded cpu ( powerpc ). the timing and logic function are fulfilled by fpga. after the disscusion of signal adjusted, the detailed scheme of this module design have been showed. in this design, there is much logic function design, and it is very strict with the hardware language program. so the basic flow of hardware program design and several very important methods of high speed logic function design, which is described by vhdl, are introduced. also, expatiated the inner modules structure of fpga for forepart circuit, the keystone and difficulties of the design. the design of high - speed pcb is another difficuty of realizing high - speed data acquisition system, and it is very important. the timing simulating results of several pivotal modules are depicted. high - speed signal paths are terminated to match the characteristic impedance. the design undergoes integrity analysis and software simulation

    在本模塊的設計中,有著大量的邏輯設計,硬體語言程序的編寫要求較高,因此,文中介紹了硬體程序設計的基本流程,以及幾種基於vhdl硬體語言設計在高速邏輯設計中非重要的方法。同時闡述了本模塊設計的前端fpga的內部模塊結構,設計的重點、難點,並給出了重要模塊的時序模擬結果。高速pcb的設計也是目前實現高速據採集系統的難點和重點,文中詳細的闡明了高速pcb設計中的注意點,以及作者在設計本模塊時的和心得。
  20. ( 5 ) especially, a method to get p _ ( c ) has been developed based on the formerly work by hu jinbiao. many p _ ( c ) of metals have been calculated by this method and been compared with literature and experimental data. it has been proved preliminarily that though this method is very simple and very easy to use, its result is in faith reason

    大量金屬進行了計算,與文獻以其它方法獲得的冷壓結果及實據的較顯示,該方法具有物理含義明確、基本不依賴于尚存在爭議的熱壓模型、過程簡便、所依賴的據豐富以及結果穩定合理的特點,是一種適宜於高壓物性日研究的沖擊壓縮區半冷壓獲得方法。
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