次分試樣 的英文怎麼說
中文拼音 [cìfēnshìyàng]
次分試樣
英文
subsample-
Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )
2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地，通過多次現場采樣與室內實驗分析，測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分，並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗，初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm
試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。The chemical compositions of sei films formed on the interfaces of a3000 samples in different electrolytes during the first charging process are mainly li2co3 and lioco2r, but their textures are different. the sei films formed in ec - based electrolytes are thin and compact, which can prevent the solvated lithium ions from cointercalating between two graphene layers of the graphite crystallites effectively, therefore samples a3000 have small irreversible capacities and good compatibilities with this kinds of electrolytes. however, the sei films formed in pc - based electrolytes are thick but defective, which could not effectively prevent solvated lithium ions from intercalation, therefore sample a3000 shows large irreversible capacities in pc - based electrolytes and bad compatibilities with this kind of electrolytes
A _ （ 3000 ）試樣在六種不同的電解液中，首次充電過程中所形成的sei膜，其化學組分均為碳酸鋰和烷基碳酸鋰，但在ec基電解液中形成的sei膜薄而緻密，可以有效地阻止溶劑化鋰離子插入石墨層間，不可逆容量少，表現出與a _ （ 3000 ）試樣有良好的相容性；在pc基電解液中形成的sei膜厚，且有缺陷，不能有效地阻止溶劑化鋰離子嵌入試樣中石墨微晶的層間，不可逆容量大，與a _ （ 3000 ）試樣的相容性極差。The elastic foundation model is considered as two - parameter elastic foundation model and its effect to moderate - thick plates are taken into account by a set of governing differential equations. united with hu hai - chang ’ s function, least squares collocation weighted residual method which uses b - spline function as trial function is put forward for solving the bending problems. compare with the results of finite element method of lines, spline finite strip method, accurate solution of series etc. it is proved that the method in this article has adequate accuracy and practical feasibility
本文採用瑞斯納中厚板理論求解彈性地基板，建立雙參數地基與中厚板相互作用的控制微分方程，結合胡海昌的解耦函數，運用雙五次b樣條函數作為試函數的離散型最小二乘加權殘值法分析了雙參數地基上的中厚板的彎曲問題，並將結果與有限元線法、有限條法、級數精確解等進行比較，證明本文方法具有足夠的精確性與實際的可行性。Results show that the composition and microstructure at different locations of the samples from drop shaft experiment are different with that from ground experiment
發現二次分相現象只在冷卻較慢的試樣中出現，冷卻較快的試樣中不出現二次分相。It has been maked for immediate and statistical analysis that the calculation about the work order parameter of the base - bleed - rocket is calculated in the taguchi method, its influencing trend is bring out in the open, the theoretical base is settled for confirming the greatest combination about the work order parameter of the base - bleed - rocket. the multi - objectile optimal design model is established that the indexes have been taked into account first and synthetically, such as physical parameter range lethality power strength and flight stability and so on, the program is compiled and the example is calculated. the true worth of the theoretical work in this paper is validated by flight experimentation of 130mm hybrid base - bleed - rocket extended - range principium projectile
本文進行了底排?火箭復合增程彈工作時序參數正交試驗設計的直觀分析與方差分析，揭示了每個參數對射程計算的影響趨勢，為進一步確定底排?火箭工作時序參數值的最佳匹配組合奠定了理論基礎；建立了底排?火箭復合增程彈多目標優化設計模型，該模型首次綜合考慮了底排?火箭復合增程彈的結構特徵參量、結構強度性能、飛行穩定性、威力性能和射程指標，編制了相應的分析程序，進行了算例計算；完成了130mm底排?火箭復合增程原理樣彈的結構設計與飛行試驗，其試驗結果驗證了本文理論研究工作的實際應用價值。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。The graphitized cathode block samples have been trial - produced using high quality eca ( electrically calcined anthracite ) rationed petroleum coke and pitch coke and quantitative pitch used as raw materials by the conventional carbon technics concluding moulding, baking, high pressure impregmating, after - baking and graphitization
摘要選取優質電煅無煙煤，分別配以一定比例的石油焦和瀝青焦作為骨料，與煤瀝青混合后按照模壓成型、焙燒、高壓浸漬、二次焙燒和石墨化等常規炭素製品生產工藝流程制備石墨化陰極材料試樣。But, the measured - data is a very great quantity and every data contain all data of 1 - 25 harmonic, measured time can have hours to days. the count by hand is very heavy and over - elaborate, sometimes the statistics results is error. it won " t reach the analysis purpose and don " t obtain the curve of harmonic oscillation characteristic in a row frequency range
可是，測試數據經常是大量的，每一組數據又包含從基波到25次諧波的所有數據，測試時間可能是幾個小時，有的甚至是幾天時間，這樣的工作量由人工完成是非常繁重的，又是非常繁瑣的，有時還統計不出正確的數值，起不到應有的測試分析目的，更無法獲得連續頻域內的諧波諧振特性曲線。Data used in this work are north pacific ssta, 160 stations precipitation of china, and ncep reanalysis data. main results are as follow : ( 1 ) it is found that a apparent transition of north pacific ssta in later 1970 ' s : eastern and middle - equatorial pacific ssta turns from cold to warm with area extending, and mid - latitude pacific ( west wind drift zone ) turns from warm to cold. during this transition of ssta, different characters also appear in el nino and la nina : before 1976, la nina happens more frequently, and its duration is longer, el nino zone develops from negative ssta in the early stage ; after 1976, el nino happens a little bit frequent and longer with more intensity than before, el nino zone develops from positive ssta in the early stage ; the course of ssta variation has an enso cycle of 2 - 6 years, annual oscillation of 8 - 9 years, and decadal variation of about 22 years
本文採用1950 - 1999年北太平洋海表溫度（ sst ） 、中國160站夏季降水和ncep再分析的歐亞500hpa高度場等資料，利用eof 、 svd 、小波分析、合成分析和相關分析等方法，在分析北太平洋海溫時空分佈特徵的基礎上，著重探討了海溫異常及其年代際變化對我國東部降水的影響，並對降水、高度場和海溫三者之間的關系進行了分析，以試圖尋找三者異常之間可能的聯系，主要結論如下： （ 1 ） 1976年前後，北太平洋海溫經歷了一次明顯的轉變，赤道中、東太平洋厄爾尼諾海區由冷轉暖，暖水范圍增大，中緯度西風漂流區海溫由暖轉冷；在這樣的年代際背景下，厄爾尼諾、拉尼娜事件在不同的時期也有不同的特徵：在76年前，拉尼娜事件發生頻率高，持續時間長，事件起始於負海溫距平；而76年後，則是厄爾尼諾事件發生頻率略高，持續時間長，強度增大，事件起始於正海溫距平。The test samples injected into injection valve are brought into the column by mobile phase ; all ingredients are separated in the column and entered into the tester by order, chromatographic signals of which will be recorded by recorder, integrator or data processing system
注入進樣閥的供試品，由流動相帶入柱內，各成分在柱內被分離，並依次進入檢測器，由記錄儀、積分儀或數據處理系統記錄色譜信號。In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism
在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統，采樣率大於5hz ，在跟蹤小於2cm / s低速運動目標時，測量精度好於2mm ；完成對饋源二次精調系統的檢測，包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定；設計不同動態測量實驗，對全站儀動態跟蹤的誤差來源和特點進行了分析；從實驗角度，對全站儀的測量時滯及其穩定性進行了測試分析，給出了定量的結果；比較了全站儀和計算機的內部時間系統，發現兩者存在較大差異。According to the re - attacking property of the drone using the method of zero times sample test, the loss of the drone in flight test is decreased. after the data of hitting point is gotten in test, the bayesian method, which is based on the data of the test and the information of the simulation before the test, is used to analysize the precision guidance
對飛行試驗的靶試結果的分析，採用了兩種方法：零次靶試和小子樣靶試，零次靶試利用了無人機可拉起后進行重復攻擊的特性，以減少試驗損失，在得到落點數據后，運用bayes方法對落點信息和模擬信息進行分析，獲得其制導精度。Based on the results of these tests, strength model and pore water pressure model have been advanced and validated. in addition, not only have the liquefaction mechanism of the soils been analysed, but also the influence of the factors on the extent of liquefaction of the saturated soils have been discussed
在總結前人工作的基礎上，結合本次試驗成果，分析了飽和土體的液化機理及其影響因素，主要討論了土性條件（包括試樣密度、顆粒特性、固結時間、超固結及其結構性）和初始有效固結壓力的影響。The thesis shows its originality in the following aspects : first, it attempts to take a positive mean to explore the cultivation functions of chinese mass media and gives a systematic test of the relation between the perceived reality, media reality and the objective reality ; investigates media effects on the audience and their outlooks, and comes to the conclusion that the length of watching tv is not the leading factor affecting the cultivation effects and it doubts the applicability of the cultivation assumption in china. second, it scans all the tv series shown in different provinces in china, does a sample analysis and outlines the violence on screen in china
本論文在如下方面具有創新意義：首次嘗試以實證方式探討我國大眾傳媒的涵化（培養）功能，比較系統地檢驗了觀念現實、媒介現實及客觀現實三者之間的關系，考察了媒介現實對受眾觀念的作用，發現收視時長並非影響涵化效果的決定性因素，從而對涵化基本假設在中國的適用性提出質疑；首次對全國省級以上衛視臺黃金時段播出的電視劇進行全面掃描和抽樣分析，勾勒出中國大陸熒屏暴力的基本素描。The compatibilities of sample a3000 with six kinds of electrolytes were investigated too. the compositions of the solid electrolyte interphase ( sei ) films formed during the first charging process were analyzed by ftir spectra. the relationship between the sei films and the compatibilities of samples with electrolytes was examined
考察了具有最佳貯鋰結構的a _ （ 3000 ）試樣和六種電解液之間的相容性，利用ftir圖譜對a _ （ 3000 ）試樣在上述六種電解液中首次充電時在炭負極表面所形成的sei （固體電解質中間相）膜的成分和織構進行了分析，研究了試樣和電解液的相容性與sei膜的關系。Most researchers working in rock field proposed that the hopkinson system be a ideal dynamic - loading equipment and the brazilian disc be a novel specimen. according to the above, this paper suggests a new method to test the dynamic strength and dynamic fracture toughness, firstly leads the cracked chevron notched brazilian disc ( ccnbd ) which was recommended by international society for rock mechanics ( isrm ) in 1995 in testing dynamic fracture toughness, which brings in a new way in dynamic testing for rock. it is expected that the work of this dissertation will provide important basis for the further research and application of mechanical behavior of rock
結合巖石動力學領域普遍採用的動態加載設備即分離式hopkinson壓桿裝置和新穎的平臺巴西圓盤試樣，本文提出了一套測試巖石動態強度和動態斷裂韌度的新方法，並首次將國際巖石力學學會（ internationalsocietyforrockmechanics ? isrm ）於1995年推薦的人字形切槽巴西圓盤（ crackedchevronnotchedbraziliandisc ? ccnbd ）試樣引入動態斷裂韌度的測試中，為巖石的動態斷裂力學參數的測試找到了一條新的途徑。In this dissertation, the engineering properties of the nano - al2o3 and nano - tio2 reinforced cement - stabilized soil are respectively studied through the laboratory experiments. based on testing data, the unconfined compressive strength ( ucs ) of nanometerial - al2o3 reinforced cement - stabilized soil ( narcss ) is firstly analyzed in different nanomaterial mixing ratio, cement mixing ratio, curing - period, water content, w / c ratio, etc., and then the stress - strain relationship of narcss is given. the variation of the ucs of nanometerial - tio2 reinforced cement - stabilized soil ( ntrcss ) is also given in different nanometerial mixing ratio and curing period
根據試驗結果，首先分析了納米材料al _ 2o _ 3摻入比、齡期、土樣含水量、水灰比等對摻納米材料al _ 2o _ 3水泥土強度的影響，並給出其應力應變關系（本構關系）和一定條件下的最佳配比；其次，分析了納米材料tio _ 2摻入比、齡期等對摻納米材料tio _ 2水泥土強度的影響；最後，通過比較前人的研究成果，對分別摻入納米材料al _ 2o _ 3 、納米材料tio _ 2及納米材料sio _ （ 2 - x ）的水泥土強度進行了對比分析。In accordance with the characteristics of repeated impact load, and from the aspects of stress wave transmission, repeated impact wear, hardening and softening of repeated impact and plastic deformation of repeated impact, an experimental study on partial mechanics behaviors of samples bearing laser melted clad coating under repeated impact load was carried out
摘要根據多次沖擊載荷的特性，從應力波傳播、多沖磨損、多沖硬化與軟化和多沖塑性變形方面，對帶有激光熔覆層試樣在多沖沖擊載荷下的部分力學行為進行了試驗研究。The experimental instruments, apparatus and the means to prepare all the samples are introduced in the first section. in section 2, the experimental system including the oxidization system and diffusion system, are introduced therein. in section 3, the samples preparation including the pre - deposition, redistribution and re - oxidization, the samples of b doping, and the fabrication of ga - diffusion transistor, b - diffusion and the transistor formed by b diffusion following ga diffusion are detailed therein, and the as - prepared samples are analyzed by sims, srp and four point probe
首先介紹了制備各種樣品所用的實驗儀器、設備與方法；第二節中介紹了實驗系統，包括氧化系統、擴散系統，第三節介紹了樣品的制備，包括ga的預沉積、再分佈、二次氧化樣品，擴硼樣品，以及擴嫁晶體管、擴硼晶體管和擴鐮后再補充擴硼晶體管的制備流程；實驗所得樣品，藉助二次離子質譜（ sims ） 、擴展電阻（ srp ） 、四探針薄層電阻等先進的測試分析方法進行分析。分享友人