等分試樣 的英文怎麼說

中文拼音 [děngfēnshìyàng]
等分試樣 英文
aliquot part
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  • : 名詞(古代占卜用的器具) astrolabe
  • : Ⅰ名詞1. (形狀) appearance; shape 2. (樣品) sample; model; pattern Ⅱ量詞(表示事物的種類) kind; type
  • 等分 : divide from the middle; [航空; 航海] halve; halving
  1. Multiple aliquot sample harvester

    多用等分試樣標本採集器
  2. The changes in molecular weight, mass, mechanical strength, microstructure of fibers and ph value of the buffer solution with time in vitro had been studied. the study shows that degradation mechanism of pdlla / ha compound fiber was indicative of an autocatalysis process and simple noumenon hydrolysis

    通過對的性能測和形貌觀察,研究了pdlla ha復合纖維在降解過程中其子量、重量和力學性能以及緩沖溶液ph值一系列參數的變化規律,並探討了復合纖維的降解機理。
  3. The results of performance testing showed that the additive of nano - powders can evidently enhance the latex coatings " weathering resistance, scratch resistance, water resistance and alkaline resistance, and do not reduce other performances ; polybasic nano - composite powders have more efficient than single nano - powder ; the dispersing method have biggish effect on performances. observing the stability of nano - additive of exterior latex coating showed there was no viscidity rising, no delaminatiom sedimentation in two months. tryout by plant showed that nano - weatherability additive can obviously enhance the weathering resistance of latex coating and water resistance, and no reducing other capabilities

    對其性能研究的結果表明,納米粉體材料的引入,可以明顯提高乳膠漆的耐候性、耐洗刷性和耐水耐堿性能,對其它性能無不良影響;納米多元復合粉體比單一粉體的改性效果明顯;納米粉體的添加工藝對改性乳膠漆性能有較大的影響,採用同普通填料一致的添加方式制備的與採用超聲波預散后在配漆階段加入制備的相比,後者在穩定性、耐候性方面的性能都有所提高。
  4. ( 6 ) in this paper. adopting fea software ansys to simulation and analysis the al ecap process. in order to spread out studying of ecap in the future. the results show : die comer angle, the radius of round angle, the friction coffience of workpiece and die, the properties of die ( elastic modulus, possion ratio ) et al, have some degree impact on the deformation of materials

    ( 6 )採用有限元( fea )析軟體ansys對al的擠壓過程進行ecap模擬與析,為后續研究工作做好鋪墊,析結果表明:外切角、圓角半徑、與凹模之間的摩擦系數、凹模本身的特性(如彈性模量、泊松比,對材料的變形量都由不同程度的影響。
  5. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測迴路為設計方案,並從控制理論的角度進行了析,著重研究了系統中各部的傳遞函數,利用系統開環傳遞函數析了系統的穩定性,同時設計了系統的校正網路;析了二元調寬脈沖再平衡測迴路的解析度、采約束以及測精度基本問題,並按照系統析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器系統各部硬體電路,驗證了電路的正確性,最後按照測系統的要求,採用了美國ni公司專為測領域所開發的虛擬儀器工具? ? labview作為測軟體開發工具,利用該圖形化編程語言完成了測系統軟體部的設計,實現了測功能。
  6. In the last part of this thesis, we introduce the component and function of test system, and focus on how to develop the test system in details, include up layer application and device driver, from analyzing to coding. we explain how to develop the gui of test system using photon application builder ( phab ) tools, communicate among processes and schedule the multi - tasks. we also introduce the development of device driver under qnx, include programme of the interrupt handler, management of hardware resource and interface between application and device driver

    首先,以真實的圖形界面為基礎,詳細介紹了測軟體界面部式、功能和使用;在此基礎上,進一步介紹了測軟體編寫中的一些技術細節,如如何使用phab開發圖形界面、如何進行多任務調度、如何進行進程通訊;最後詳細地介紹了在qnx下驅動程序的開發包括中斷處理函數的編寫、系統硬體資源的管理以及驅動程序與測程序的介面。
  7. 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

    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,熔融溫度及解溫度降低,且伴有氧化解反應;碳纖維表面含有c = o及c - o - c極性基團,有利於提高其與其它組的相容性,提高層間剪切強度;均勻設計驗方法能夠用較少的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 。
  8. 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,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、二次焙燒和石墨化常規炭素製品生產工藝流程制備石墨化陰極材料
  9. All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate

    本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜,採用原子力顯微鏡( afm ) 、 x射線( xrd ) 、 hall測儀、紫外?可見光光度計和x光電子能譜析測手段,研究了品的表面形貌、晶體結構、光學和電學性能
  10. The effect of solidification rate on the solidified structure, cooperation growth zone and microstructures such as tac rods volume fraction, tac rods average spacing, tac average transverse area and y phase in this eutectic composite were systematically investigated with lmc. the relationship between solidification processing controlling and solidification microstructure was established

    藉助金相技術、電鏡技術、圖象處理技術多種析測手段,考察的界面形態、組織特徵以及共晶形貌多方面的凝固特性,建立了凝固過程式控制制與凝固組織的對應關系。
  11. 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 )實驗、測定了20種常見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實驗結果別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;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種生物質作了加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微方程,並採用goast - redfem積法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,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,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( 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對生物質傳熱過程及充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熱解溫度的時間( t ) ,得出了理論推導的充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 )根據上述實驗結果,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
  12. Furthermore, we compared the mechanical properties between the modified nano - cac03 / pp and unmodified nano - cac03 / pp. we have investigated the composites by means of mechanical testing, dsc, xrd, ft - ir, tem, sem, etc. the relation between the structure and property of the composites has been discussed in this thesis. we studied the nano - particles by means of ls particles size analysis, we also studied the modified nano - cac03 by means of ft - ir

    論文中對caco _ 3粒子進行了粒度與比表面測析,對經鈦酸酯偶聯劑表面改性的納米caco _ 3粒子進行了紅外吸收光譜析,對改性后的復合材料進行了力學性能測、差熱掃描量熱析、 x射線衍射譜、紅外吸收光譜、透射電鏡、掃描電鏡析,討論了品中結構和性能之間的關系。
  13. In the macroscopical field : ( 1 ) the relationship between the moisture and the speed of average collapse was attained, that is, the speed of average collapse will increase with increasing of the moisture at first, but it will decrease when the value get to certain max with increasing of the moisture ; ( 2 ) the model of relationship between the pressure and the speed of average collapse was established on the basis of experiment. the conclusion of that the speed of average collapse bouncing increase with increasing of the pressure was attained and the relationship between stress and distortion was established ; ( 3 ) the method of synthetical evaluation for collapsibility loess under the effect of time, pressure and moisture was offered

    在宏觀角度上: ( 1 )以遼寧阜新地區黃土的固結驗數據為析對象,得到了黃土濕陷速率與含水量的關系曲線呈單峰狀態的結論,即黃土濕陷速率在土體浸水初期會隨著含水量的增加而增大,但當含水量超過某一數值趨于飽和含水量時,黃土濕陷速率卻隨著含水量的增加而減小; ( 2 )立了黃土濕陷速率與壓力之間關系的數學模型,得出了黃土濕陷速率隨壓力的增大而呈階越增長的結論以及阜新地區濕陷性黃土的本構關系; ( 3 )提供了在時間、含水量及壓力因素共同作用下,對黃土濕陷性進行綜合評價的方法。
  14. The difference among the elasticity modulus of various microstructures is probably the main reason, which caused the experiment results above. under the same experiment conditions, such as sample shape, size, surface roughness, establishment of testing system, pressure on the probe, and thickness of coupling medium, the variety of relative attenuation coefficient ( or ) in different heat treatment samples is measured and compared by measuring the attenuation obtained from the cylindrical surface of column. the result is as following : for 40cr and 38crmoal, a mt < az mq < a s < a p + f ; for gcrlssimn, a mt < a annea < s < a p + f ; and a increased with the increasing of frequency

    在保證形狀、尺寸、表面光潔度、系統參數設置、施加在探頭上的壓力以及耦合層厚度條件一致的情況下,利用棒材圓柱面測衰減系數法,別測定並比較上述不同熱處理相對衰減系數的變化情況,得到的實驗結果是:對於40cr及38crmoal鋼, _ (低溫回火) (淬火) _ (高溫回火) _ (正火) ;對于gcr15simn鋼, _ (低溫回火) _ (退火) _ (高溫回火) _ (正火) ;且隨著頻率的提高,衰減系數均呈現增加的趨勢。
  15. The thickness, microstructure and hardness of the samples were measured using microscope, sem and micro - hardness meter

    利用電鏡、光學顯微鏡和顯微硬度計析儀器,對的厚度、顯微組織和顯微硬度進行了檢測和析。
  16. Mineral compositions and the microstructure were investigated by xrd and sem ; the result show that the second phase and liquid phase are produced during sintering, and the second phase and liquid phase were filled in space of the al2o3 crystals, which can control the microstructure efficaciously

    通過xrd 、 sem (帶能譜析)手段測品的礦物組成和顯微結構;結果表明,引入mgo礦化劑后,材料在燒結過程中主要形成第二相和一定量的低共溶相填充在al _ 2o _ 3晶粒之間,籍此可以有效控制材料的顯微結構。
  17. Based on orthogonal experimental avenue, dmm is manufactured by local po, sa, and phosphorus slag flying ash, yellow slag and ect. and formulate optimum mixture program and production technology requirement ; on basis of jcj70 - 90, physical mechanics property is quizzed, adopting chemical analysis, xrd, sem and so on, discuss composition and structure. the researchable result is that mixture program of dmm : a3b2cl ( cement 403 m2 / kg, phosphorus slag357 m2 / kg, activated agent 2 % ), after the condition of c / s1 : 4, adopting ordinary portland cement

    採用正交方法,用本地生產的普通硅酸鹽水泥、硫鋁酸鹽水泥、磷渣、粉煤灰、黃砂原料配製抗滲干拌砂漿,確定最佳的配料方案和生產技術要求;按jcj70 ? 90 《建築砂漿基本性能測方法》測定砂漿的各項物理力學性能;運用化學析、 x衍射儀、掃描電鏡手段,檢測配製砂漿的組成和結構。
  18. By embarking on the history of being borne and developing of eco - efficiency, on the basis of theories of relationship between economy and resources and environment, and theory of eco - economy, by using of analytic methods of deduction, induce, empiricism, combining microcosm with macrocosm, comparing, setting up math - economical models, etc, aiming at “ what is eco - efficient organization ”, “ why it is necessary to develop eco - efficient organizations ” and “ how to develop eco - efficient organizations ”, the thesis tries to systematically establish basic framework for the development of eco - efficient organizations in china

    與此同時,著重依據資源環境與經濟關系、生態經濟理論,綜合運用演繹歸納、實證、微中觀與宏觀相結合、比較、數理經濟建模析方法,以生態效率型組織「是什麼」 、 「為什麼」要發展、 「怎麼」發展為研究主線,論文圖相對系統和完整地構建我國生態效率型組織發展理論。論文主體內容四部:第一篇論述生產與服務組織生態效率化發展的必然性。
  19. ( 3 ) there are many flaws in direct laser metal sintering, such as the high remnants stress, micro - hole and micro - crack in sintering parts. in order to solving those problems, the programming of scanning paths is put forward, and several parts are prepared with different scanning paths respectively. the following conclusion is educed : the parts produced with short - side scanning path and same scanning direction have the minimum structure, the rigidity of parts prepared by short - side and same direction scanning path is highest, and the density of parts produced with the vertical scanning path is maximal

    ( 3 )針對採用大功率激光直接燒結鎳基高溫合金成形金屬零件存在的問題,如較大的殘余應力,製件中存在著微裂紋、微孔洞缺陷,初步提出掃描路徑的規劃,並採用幾種不同的掃描方式進行燒結驗,發現採用短邊掃描路徑和同向掃描能夠獲得更加細小和佈均勻的組織結構,採用短邊同向路徑制備的其顯微硬度最高,而採用變向掃描(垂直)路徑制備的緻密性最好。
  20. The second part of the dissertation concentrates on the applications of the digital image processing technique in measuring the specimen deformation in - triaxial test. it includes : ( 1 ) discuss of some problems in triaxial test. it includes the influence of end contact and end restraint, the volume variety during the triaxial specimen being saturated, the characteristic of distributing of the gram at the surface of specimen, etc. conclusions are made and some suggestions are presented

    論文的第二部是數字圖像測量技術在土工三軸驗中的應用研究,主要內容包括以下幾個部: ( 1 )三軸驗若干問題的討論:利用數字圖像測量技術,主要對三軸的端部約束、端部接觸和端部區域「藏水區」效應、三軸飽和過程中的體積變化以及表面顆粒佈特性問題進行討論,給出了一些有意義的結論和建議。
分享友人