單組前測 的英文怎麼說

中文拼音 [dānqián]
單組前測 英文
one groupretest posttest design
  • : Ⅰ名詞1 (由不多的人員組成的單位) group 2 (姓氏) a surname Ⅱ動詞(組織) organize; form Ⅲ量詞(...
  • : Ⅰ名詞1 (在正面的) front 2 (次序在先的) first; top 3 (過去的; 較早的) ago; before; preceding...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  1. The result is that this gas pool has simple structure, only forms a little nose - like structure at the district of fenghuangshan ; this pool belongs to delta front sub - facies sedimentary model, the underwater distributary channel and mouth bar is the better sedimentary microfacies ; the physical property of the reservoir is poor, the type of pore of the reservoir rock mostly are intergranular pore, intergranular solution hole and little are intercrystalline micropore ; the influential factors of pore structure and physical property are lithofacies, lithologic character and diagenesis ; the off - take potentia of all the testing well are deadly shortness, the wells have the worth of industrial recovery only under the condition of going through sand fracturing, and in the early of binging into production, the oil and sheath pressure drop rapidly, the production of the well drop rapidly

    研究認為該氣藏構造簡,只在鳳凰山形成了一個小型的鼻狀構造;屬於三角洲緣亞相沉積模式,水下分流河道和河口壩是有利的沉積微相;儲層物性差,儲層巖石的孔隙類型主要有粒間孔、粒間(內)溶孔及少量晶間微孔;影響蓬萊鎮氣藏儲層孔隙結構及儲集性的因素有巖相、巖性條件及成巖作用;所有試井自然產能都極低,必須經加砂壓裂后才有工業開采價值,且投產初期,油套壓下降較快,氣井產量下降迅速。
  2. Its basic thought is that using amass of simple classifier which has common classified ability and through thecertain method , at last , constitutes a very strong classifier which has strongclassified ability carries on many times with this strong classifier to the goalpictures , finally confirmed the pictures whether includes the human face andits the general position this algorithm uses a characteristic which called haar characteristic thischaracteristic is one kind of simple rectangular characteristic , because it issimilar with the haar wavelet , so called haar characteristic this kind ofcharacteristic is composed of two or many rectangles that are congruent andneighboring there are white and black kinds of rectangles in the characteristictemplate, and defines this characteristic template characteristic value as thewhite rectangle this characteristic value is that the difference between white

    本文主要研究基於haar特徵的adaboost演算法。由於以提出的特徵中包含的人臉基本特徵比較少,導致檢時間過長。本文根據人臉基本特徵的分佈提出一種新的特徵,新特徵覆蓋了人的眼睛,鼻子和嘴,它由haar特徵中的一些簡特徵合而成,形狀類似卷積中用到的3階矩陣,這種新特徵檢的結果是可以檢到人臉,時間上得到優化。
  3. A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    應用由111個傳聲器成的平面傳聲器陣列對當流行的民用客機進場著陸過程中的機體噪聲源進行了實驗量,本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析,得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現,起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的音噪聲源成,起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大,這說明可以通過重新結構設計降低起落架噪聲。
  4. Here we managed to make cultured mice peritoneal macrophages be directly influenced by oligochitosan, and be stimulated by ifn - r before oligochitosan added, then measured the changes of gene transcription and translation level of both il - 1 and imf - a, respectively by methods of relatively quantitive rt - pcr and elisa. first, rt - pcr results showed that 18 hours was the most effective time and 40ug / ml was the most effective concentration of oligochitosan, then by the same method, confirm that 4hours is the most effective time and loou / ml is the most effective concentration of ifn - r stimulating. because ifn - r can enhance il - 1 and tnf - a gene expression of macrophages alone, so add ifn - r to microphages alone for 22 hours, then examined by rt - pcr, the results showed that il - 1 and tnf - a gene expression have no remarkable difference compared with the blank contrast group

    此外,由於ifn y獨作用也可促進兩種細胞因子基因表達,故在巨噬細胞中加入ifn y獨作用22h ,再經阿一pcr檢,發現加ifn y的實驗細胞的幾一lp和tnf a基因轉錄水平與空白對照相比較無顯著性差異,可見,殼寡糖和ifn v對巨噬細胞il lp和tnf一口基因轉錄水平的影響在作用時間上無一致性,在殼寡糖作用最適時間時,僅受ifn y刺激的巨噬細胞il lp和tnf q基因轉錄己下降至刺激水平,因此可以認為, ifn y的加入僅起到對巨噬細胞預刺激使之處于敏感狀態的作用,有利於增強殼寡糖對巨噬細胞的作用。
  5. The first part concerned the self - conceptions of competence in the field of children ' s physical exercise. it was made up of three experiments : experiment i used bandura ' s classical pattern of the measurement of self - efficacy for reference. before and after the children ' s three trial jumps respectively, they were asked to assess their abilities to fulfill a series of tasks of standing long jumps from easy to difficult

    第一部分是幼兒身體運動領域能力自我知覺的研究,由三個實驗成:實驗一借鑒bandura自我效能量的經典模式,在幼兒三次集中試跳之、之後,分別讓幼兒就自己在完成從易到難的一系列立定跳遠任務上的能力及把握程度做判斷,並在其後再對自己最大能力分別做一個項目的總的判斷,比較試泛化經驗和試后即時直接經驗對幼兒能力知覺的影響作用,並對比項目判斷和多項目判斷對幼兒能力自我知覺的反映情況。
  6. The morphology of single cell and the ultrastructure of cell membrane were observed. by means of afm, the ultra - thin sections of murine es cells were investigated in order to make afm capable of gaining the information of the inner structure of cells. in addition, the morphological changes and damaging effect of trichosanthin ( tcs ) on red blood cell ( rbc ) membrane were observed by afm

    對原子力顯微鏡( atomicforcemicroscope , afm )的成像技術進行了多方面探索;用afm研究膠原蛋白分子在雲母表面的吸附和自裝行為;對小鼠胚胎幹細胞和人血紅細胞進行afm成像,觀個細胞的形態以及細胞膜的微觀結構;利用afm得到了小鼠胚胎幹細胞超薄切片的高解析度圖像,探索用afm研究細胞內部結構,拓展其應用領域;天花粉蛋白( tcs )和紅細胞的相互作用,利用afm觀察到天花粉蛋白( tcs )和紅細胞相互作用後紅細胞膜超微結構的變化,據此討論了二者的作用機理。
  7. The article consists of three parts mainly : the first part has described the method of detecting the faint signal, mainly include : detection technique of faint signal, principle of the optical fibre sensor, the little lose effects when optic fibre little curved, and the research of the stress sensor of optical fibre. the second part emphasizes on the design of the intelligent photoelectricity system, mainly tells the design of the circuit to process the faint photoelectricity signal, details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller, led, man - machine interface, communication interface, etc. the third part is the network communication of the detection system, details the technology of single chip microcontroller how to group the network, and the communication between single the chip microcontroller system and the modem, and how to realize the data between the field and computer central exchanged through the existing public phone network

    文章主要分為三部分:第一部分論述了微小信號的檢方法,主要包括微小信號的檢技術、光纖傳感器的原理、光纖微彎損耗效應及光纖應力傳感器的研製;第二部分重點講述了智能光電檢系統的研製,主要講述了微弱光電信號調理電路的設計及由(后)向通道、片機、 led 、人機介面、通信介面等成的智能光電系統的軟硬體的具體設計;第三部分為檢系統的網路通信部分,具體闡述了片機系統間的網技術、片機和modem之間的通信及通過現有的公用電話網路實現遠程監控的技術,實現現場檢系統與橋梁控中心的數據交換。
  8. Some issues of time - correlated single - photon counting technology for detection for optical properties of biological tissue are discussed, including its basic principle, components and conventional methods applying the technology

    摘要探討了目普遍應用於量生物織光學參數的時間相關光子計數檢技術,詳細闡述了該技術的基本原理、系統成以及利用該技術量生物織體光學參數的常用方法。
  9. Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    文摘:應用由111個傳聲器成的平面傳聲器陣列對當流行的民用客機進場著陸過程中的機體噪聲源進行了實驗量,本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析,得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現,起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的音噪聲源成,起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大,這說明可以通過重新結構設計降低起落架噪聲。
  10. In this system, mean velocity pipe is applied to transform the air velocity signal into pressure difference signal, and then the pressure difference signal is input into pressure difference transmitter to realize the transform of the pressure difference signal from non - electricity signal to electric current, and through the resistance in the corresponding sampling circuit the electric current is transformed into voltage signal ; the thermocouple is used as the primary element to realize the transform from temperature signal to the voltage signal ; under the control of communication agreement module, diversified voltage signal is transported into computer by way of a / d conversion module, and then the monitoring software compiled beforehand is transferred to deal with all the voltage signals relatively, the result of which is conveyed to relative interface to display

    該裝置具有三個特點:一是採用表面式溫方法,有效地減少了元件的維護與損耗;二是採用工業控制計算機及信息就地採集、數據總線傳輸的方式,充分利用計算機和數據自動採集方面的技術,實現各種參數的在線量,監指標全面,能與dcs系統聯用,具有技術先進性和一定的瞻性;三是採用顯示器配工業觸摸屏的顯示方式,為現場運行人員提供了簡、易學、方便的操作模式。本裝置自2001年8月投入運行以來,有效地幫助、指導運行人員進行燃燒調整,對于鍋爐和機的安全、經濟運行發揮了重要作用。
  11. Abstract : a new algorithm w - ecop is presented to effect incremental changes on a standard cell layout automatically. this algorithm deals with cell inserting and cell moving based on rows instead of on cells as most placement algorithms usually do. an integer programming problem is formulated to minimize the adjustment on the initial placement and a heuristic method is presented to search for a shifting path so as to optimize the wirelength. test of w - ecop on a group of practical test cases shows that the algorithm can successfully accomplish incremental placement with good quality and high speed

    文摘:提出了一種新的增量式布局方法w - ecop來滿足快速調整布局方案的要求.與以的以元為中心的演算法不同,演算法基於元行劃分來進行元的插入和位置調整,在此過程中使對原布局方案的影響最小,並且盡可能優化線長.一從美國工業界的試例子表明,該演算法運行速度快,調整后的布局效果好
  12. The signal collecting system of singlechip collects the signals from generator. the paper introduces the every part of the singlechip. the key component is a 8051cpu, its surrounding circuits include dc power source, simulating signal collecting circuit, digital signal collecting circuit, a / d converting circuit, clock generating circuit, counting frequency circuit, controlling circuit, communicating circuit, and some other circuits

    片機採集系統完成對發電機多信息量的採集,本文詳細介紹了電路設計,系統的核心器件為8051cpu ,其外圍電路包括電源電路、模擬信號採集電路、 a d轉換電路、數字信號採集電路、時鐘發生電路、頻電路、控制電路、通訊電路等。
  13. Considering the embedded control system is been progressively used in these fields, such as industry control, apparatus and instrument, the configuration control system will be widely applied in such as machine and electronic equipment, intelligent instrument, and smart house, etc. we designed such embedded configuration control system conformed to the international standard iec611131 - 3, which has not only logical control function, but also graphical monitoring function

    結合嵌入式控系統在工業控制、儀器儀表等行業的不斷推廣應用,這樣的嵌入式態控制系統在大型機電設備的機控制、智能化儀器以及智能家居等小型嵌入式控制領域中有廣泛應用景。本課題中設計的符合iec61131 - 3標準的嵌入式態控制系統,其硬體平臺的設計主要適用於大型機電設備機、實驗室環境、智能家居系統等小型、嵌入式控制的應用場合,它不但可以實現傳統小型plc的功能,還把監控功能集成在一起。
  14. The system makes up of two parts : subordinate part is the measure instrument, it also is principal part ' s data collection equipment, it makes use of microcontroller ' s advantage, it intelligentizes the management and data collection circuit, it has liquid crystal display and 4x4 keyboard, it can work alone on the field, so it is very convenient and ensures the credibility of data sampling ; principal part is virtual instrument software on personal computer, the software can be installed in notebook pc and work with subordinate part on the field, it extends the subordinate part ' s function, the teachers also can use it as demo teaching

    系統的設計借鑒了主從式虛擬儀器設計的思想,系統由主機和從機兩部分成:從機部分即為光合、蒸騰速率定儀,也是主機的數據採集器,它利用片機功能全面的優勢,使調理電路和數據採集電路智能化,它配備lcd顯示器和4 4鍵盤,可以獨立野外量,從而使虛擬儀器在保證數據采樣可靠的提下,更加方便實用;主機就是pc機的虛擬儀器軟體,既可以安裝在筆記本電腦上,與從機成便攜式儀器系統進行實地量、處理數據,擴展從機功能,又可以作教學演示。
  15. Ganfa has over 50 years experience of designing and manufacturing and has many items of patent techninque. the synchronous generators and permanent magnet generators which are manufactured with advanced technology and excellent machining equipement, will be able to meet the requirement of different technical condition which matched with various type turbines. ganfa has manufactured the generators of 0. 1 to 20mw in capacity which have been put into operation at present and owns the capability to manufacture the following generators : the capacity per unit up to 180mw, the stator outer diameter of generator up to 9, 000mm, the speed of vertical type generator up to 750r min, and thespeed of horizontal type generator up to 1, 500r min, both the b - grade and f - grade insulation class, the terminal voltage can up to 13. 8kv. ganfa manufactured 34, 500kw water turbine generator sets for the donghewan power station, yongchang, gansu, china which is located in 2. 868. 5m height above sea level, and has successfully solved the difficult problems such as plateau corona - shielding. ganfa is equipped with the generator test station and insulation material laboratory which are advanced test facilites and testing means to make each item electrical performance of products meet designing requirements from purchasing to delivering

    公司具有50年的設計製造經驗,擁有多項專利技術,生產的同步發電機永磁機技術工藝先進,製造精良,能滿足與各式水輪機配套的不同技術條件要求。目公司已製造投產的發電機容量范圍為0 . 120mw ,具備生產擊容量50mw的能力,發電機機座號最大可達9000mm ,立式機最高轉速750r min ,臥式機最高轉速達1500r min ,絕緣等級有b級和f級,圈式線圈最高電壓達13 . 8kv ,公司製造的甘肅永昌東河水電站34500kw水輪發電機,海拔為2868 . 5m ,成功解決了高原防暈等難題。公司擁有電機試驗站絕緣材料試驗室等先進的實驗室設施和試手段,使產品從原材料進產,到成品出產的各項電器性能試均能滿足設計要求。
  16. Firstly, the current testing localization in the detection of electric bow is analyzed and the new system ' s whole construction developed in this thesis is introduced ; in the 2rd chapter, the embedded 110v dc power supply is analyzed and constructed, and with experiments, some dissonant results such as the fluctuation of output pwm ( pulse width modulation ) pulses, the power noise added to output voltage, and the drop of output voltage have been analyzed and the problems have been broken down one by one ; in chapter 3, stepping motor ' s drive has been systematically dissertated, and combing stepping motor ' s subdivided drive technology, the author develops an intelligent mini - step driving circuit using a main - sub microprocessor structure, which is validated in the hybrid stepper based system ; in the 4th chapter, liquid crystal driving and displaying technology is specified in detail, with one sort of lcd modules ( tlm12864h ), the author develops an feasible circuit for the new testing system, designs a menu mode based program struc ture and brings here some programming codes using franklin c51 programming language ; in chapter 5, the above built system is used in the electric bow ' s practical detection, and the differentiating rate of this system is analyzed

    論文首先分析了目機車受電弓檢修方式存在的局限並概述了本論文研製的受電弓試系統的體系架構;第二章對系統內置110v直流控制電源進行了分析和設計,結合試驗對輸出pwm振蕩、輸出電源噪聲大、輸出電壓下跌等現象進行了分析並提出解決措施;第三章論述了步進電機的驅動,結合步進電機微步驅動技術研製了基於上下位片機的混合式步進電機智能驅動電路,並在試驗中得以驗證;第四章詳述了液晶驅動及顯示技術,利用一款液晶顯示模塊tlm12864h研製出本系統用液晶顯示電路,設計了菜式的程序結構並以franklinc51編程方式給出部分子程序代碼;第五章則將以上構建的整個系統應用在機車受電弓的實中,並對試解析度進行了分析。
  17. Objective the origin and the nature of the hodgkin and reed - sternberg ( h / rs ) cell of hodgkin ' s lymphoma ( hl ) has been attracting a lot of medical researchers engaged in studying it, for its character by scattered large atypical cells residing in a complex admixture of inflammatory cells. great improvement has been made since a new method of isolation of single h / rs cells from a frozen section had been set up by kuppers in 1994, and many studies have approved of the b - cell derivation of h / rs cell. lt has been reported that h / r - s cells might partly be originated from b - cell in our research before, but at the same time, we also found that only 18. 8 % of h / rs cells express cd20, 31. 3 % of immunoglobulin heavy chain ( igh ) rearrangement have been revealed

    目的霍奇金淋巴瘤( hodgkin ' slymphoma , hl )由於它的惡性腫瘤細胞? h rs細胞一般只佔腫瘤織的極少部分(不到1 ) ,且散在分佈在背景細胞間,因此對于h rs細胞的來源和性質研究一直是人們探索的目標。 1994年德國科隆大學k ppers等發展了一種從冰凍織切片上用顯微操作儀挑取個h rs細胞的顯微切割方法進行h rs細胞基因分析后,人們對h rs細胞來源的研究有了突破性的進展,多數支持b細胞來源。我們的期研究也支持部分h rs細胞為b細胞來源,但我們發現只有18 . 8的h rs細胞表達cd20 , 31 . 3的hl檢到igh基因重排克隆性條帶。
  18. Part five concerns itself with data analysis and discussion, which falls into three steps : in the outset, the descriptive analysis is made to compare the scores of experimental group and control group. furthermore, one - way analysis of variance ( anova ) is made to identify whether the cognitive strategies exert a certain influence upon the achievements of post test, and then the results of employment of cognitive strategies in experimental group and control group are compared and analyzed to draw a conclusion ; finally, comparisons are conducted to analyze the differences of cognitive strategies between effective students and ineffective students

    數據分析和討論分三步進行: ( 1 )對兩學生、后成績進行時比分析,並用因素方差分析探討了認知策略是否對學生后成績產生影響; ( 2 )通過問卷,對實驗和對照認知策略的使用結果進行對比和分析; ( 3 )對實驗優秀生和后進生認知策略的使用進行對比。
  19. Rms simulation software is designed not only to simulate a single radioactive accident but also to simulate any radioactive accidents combination. by inserting the faults of detectors, front end computers and sample loop plants ( pumps and valves ), rms software can meet the need of simulator training

    模擬軟體設計成可以模擬一放射性事故,也可以模擬任意幾個事故的合,並配合加入相應的探器、端機、取樣迴路設備(泵和閥)的故障, rms模擬軟體可以滿足模擬器培訓的要求。
  20. Blocks until the server either receives a new client or detects available bytes being written to an open socket

    在清1中,在服務器接收新客戶機或檢到正把可用的位元寫到打開的socket
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