negative control 中文意思是什麼

negative control 解釋
反向力操縱
  • negative : adj 1 否定的 否認的;拒絕的 (opp affirmative); 反對的 反面的;消極的。2 (opp positive) 【電...
  • control : n 1 支配,管理,管制,統制,控制;監督。2 抑制(力);壓制,節制,拘束;【農業】防治。3 檢查;核...
  1. Methods 1 ) statistic methods including factorial experiment was carried out to optimize the major conditions for sample management, and the feasible negative and positive control for fcm analysis of cd62p expression were check out

    方法1採用濃度梯度法優化gprp濃度條件,採用析因設計優化凝血酶濃度和37孵育時間條件,尋找最佳陰、陽性對照。
  2. The company develops the production the panoramic camera to use 120 or220 roll films, the lens focal distance scope : 28 - 300mm, the fuselageuses the pure metal numerical control processing, but preciselyestablishes the shooting angle, the entire automatic attire volume, receives the volume, and may control remotely the photography, in thephotography may the automatic compensation exposure ; the panoramicpicture enlarger and bright room panoramic picture making anenlargement machine may use in 80 cm length the panoram negative, extremely conveniently manufactures each kind of width the panoramicpicture

    公司研製生產的全景照相機使用120或220膠卷,鏡頭焦距范圍: 28 - 300mm ,機身採用全金屬數控加工,可精確設定拍攝角度,全自動裝卷收卷,並可遙控拍攝,拍攝中可自動補償曝光全景照片放大機和明室全景照片擴印機可用cm長度內的全景底片,非常方便地製作各種寬度的全景照片。
  3. M ( 4 ) do a deep research on the privilege management of the engineering database system co - s _ dbs, and aimed at the requirements of the cooperative design for the privilege management, purpose a privilege management model s _ pmm. this model can not only provide the well - designed structure of the privilege control table and the paniculate privilege control, but also support role mechanism, positive and negative privilege mechanism, concealed privilege mechanism, which well satisfies the requirements of the cooperative design

    ( 4 )對co - s _ dbs工程數據庫系統的權限管理進行了深入的研究,針對協同設計對權限管理的要求設計了權限管理模型s _ pmm ,該模型提供了設計良好的權限控製表結構,細粒度的權限控制,支持角色機制、正負權限機制、隱式權限機制,很好的滿足了協同設計的要求。
  4. The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation

    二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。
  5. Now i would like to mention some variants of control by negative extraterrestrial beings ( mostly by saurians ) watched on people in every day life

    現在我想要提到一些受負面宇宙生命(通常被蜥蜴類)控制的變體每天注視著人類。
  6. It is a new way to understand public opinion ; it can focus hotspot matter and supervise circumstance ; providing reference about managing nation for leader ; promoting legal system building and culture spread, etc. negative function : spreading rumor ; assault and battery ; impacting conditional culture, etc. we should try to make use of positive effect and control disadvantage about comment of netnews

    第三部分從積極作用和負面影響兩個方面闡述了網路新聞評論的功能。積極作用:開辟了體現民意的新通道;聚焦熱點問題發揮輿論監督功能;為管理者和決策者治理國家提供參考與依據;促進了國家法制的健全;一定程度上發揮著道德評判的作用;促進社會文化傳播等。
  7. The application of dcs to control system for circulating fluidized bed boiler, including the drum water level control, steam temperature control, hearth negative pressure control, fuel control and circulating fluidized bed temperature is introduced

    摘要介紹了集散控制系統在循環流化床鍋爐控制系統中的具體應用,包括汽包水位控制、蒸汽溫度控制、爐膛負壓控制、燃料控制和爐床溫度控制。
  8. The expressed product was lysised with supersonic wave and purified by sds - page. elisa analysis revealed that the antigenicity of the vpi protein has been detected. the forth part - detection of aev - nh937 strain by in situ hybridization ( 1sh ) - probe was labelled with digoxigenin ( dig ). then the probe hybrid with 5d, 10d, and 20d postinfection brain tissue of chicken. the results of the ish showed that the positive signal was found in 3 cases, while control group was negative. there has been a reasonable correlatien between this method and other detection test

    經超聲波裂解,用尿素溶解包涵體,電泳純化后,利用elisa檢測vp _ 1外殼蛋白,表明具有一定抗原性;第四部分:應用原位雜交檢測aevi用dig標記的探針與sd 、 10d 、 20d的攻毒雞腦組織雜交,來檢測那v的rna 。
  9. The pwm control of duty cycles acts as an electric transformer which regulates the amplitudes of equivalent input voltage and equivalent output voltage, so that both positive and negative amplitudes of equivalent input voltage are equal to those of equivalent output voltage

    對器件占空比的pwm調節,相當于在電路中加入一個電子變壓器,使得輸入方波電源和輸出方波電源的正負電壓幅值分別匹配。
  10. Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment

    本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型;設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案;對電機採用何種驅動方式進行了對比分析;對驅動電路進行了元器件選型、原理圖設計、制板及調試;有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊;設計了以dsp為核心的控制電路原理圖;以模塊化的軟體編程思想編制了電機控制軟體;通過tms320lf2407目標板、上位機、驅動板及電機的聯調,證明了系統可行。
  11. It is efficient for flow cytometric analysis when fresh platelet riched plasma ( fprp ) was set as negative control, thrombin actived fprp and liquid nitrogen treated fprp were set as positive control respectivelv

    除了fcm常用的同型對照外,文中還將fpr 、凝血酶激活fprp和液氮處理fprp作為血小板標準陰性、陽性對照,直接應用於fcm分析,且效果良好。
  12. The repressor is essentially a negative control mechanism.

    阻遏物基本上是一種負控制機制。
  13. Spleen cells from negative control mice did not proliferate upon restimulation

    3和3刁,而生理鹽水對照組增汛不顯著。
  14. A new method for intrinsic terminator prediction based on rnall, an rna local secondary structure prediction algorithm developed recently, and two u - tail score schemas are developed. by optimizing three parameters thermodynamic energy of rna hairpin structure, u - tail t weight, and u - tail hybridization energy, the method can recognize 92. 25 of known terminators while rejecting 98. 48 of predicted rna local secondary structures in coding regions negative control as false intrinsic terminators in e. coli. this method was applied to scan the genome of synechococcus sp

    在過去二十年中,不少研究者已開始研究如何用計算方法來預測轉錄終止信號,如brendel和trifonov的雙核苷酸分佈矩陣法dinucleotide distribution matrix carafa等的統計方法transterm和rnamotif法等,這些方法都從不同方面考慮了rna二級結構和u -尾部的特徵,而gester的預測模型則設定rna二級發夾結構是不依賴終止子的唯一因素。
  15. Histopathological examination revealed that most of the ulcer were re - epithelialization in the large and moderate doses groups, but in negative control group, most of the ulcer were not healed at the 14th day after operation

    結果:在傷后14天內,復方殼聚糖膜劑外貼可使潰瘍面積和容積縮小的速度及表皮完全覆蓋率均高於空白對照組。
  16. Note : “ + ” denotes bacterial growth and “ - ” denotes no bacterial growth. the positive control had bacterial growth and the negative control had no bacterial growth

    注: 「 + 」表示有菌生長, 「 - 」表示無菌生長。陽性對照有細菌生長,陰性對照無菌生長。
  17. 5. prepare the oligonucleotide microarray add 16 prepared probes into 384 - pole plate, meantime, add p2, low homologic probes and probe buffer in the same concentration as positive control, blank control and negative control respectively. spot microarray as designed by the spotting machine

    5 .寡核昔酸微陣列的制備以同等濃度的反義鏈引物咫作為陽性對照,以探針緩沖液作為空白對照,以無關探針作為陰性對照,與制備好的16條寡核昔酸探針,同時加人384孔板。
  18. In the study, respiratory problems and blue ear were not observed on all the pigs after challenged with prrsv strain ch - 1a. but the rectal temperatures of the pigs in the negative control groups ( plers1neo - immunized group and mock group ) were higher than the pigs immunized with the dna vaccines

    Prrsv的感染一般為亞臨床表現,在本試驗中,攻毒后所有的小豬都沒有出現呼吸困難、耳朵發蘭等癥狀,但空白對照豬和空質粒接種豬的體溫要高於基因疫苗免疫豬和滅活苗免疫豬,最高可達40石c 。
  19. For multiplex pcr, primers specific for z and y a, which are involved in the dsb, were employed. and also, a pair of primers of act1 was used as a negative control. in this experiment, we also used yku70 as a positive control, since it has been well defined as a dsb end binding protein

    雖然這一發現只是我們工作的一個開端,但是基於這一開端,兩個層面的研究工作將被很大程度地拓寬,一是泛素系統不僅只是在dna修復的prr路徑起作用,而是可能涉及dna修復的各種不同路徑。
  20. 2 > on the basis of the experimental excavating robot, several energy saving controls with multi function valve control are investigated in this paper, which include negative control, positive control and load sensing control. because of some defaults of these controls, this paper proposes some improvements on them, which have been proved to be effective in experiments

    2 、以試驗型挖掘機器人為對象,對多種閥控節能控制進行了深入研究,其中包括負流量控制、正流量控制和負荷傳感控制,針對這些節能控制方式的不足提出了多種改進方案,並分別進行了試驗驗證,效果良好。
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