離子對抗作用 的英文怎麼說

中文拼音 [líziduìkàngzuòyòng]
離子對抗作用 英文
antagonistic action of ion
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 抗 : Ⅰ動詞1 （抵抗; 抵擋） resist; combat; fight 2 （拒絕; 抗拒） refuse; defy 3 （對等） contend with...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 離子 : [物理學] ion
  1. The degradation of i k b and dissociation from nf - k b complex are essential process for activation of nf - k b. there is no report about whether cck - 8 inhibits nf - k b activity through inhibiting lps - induced degradation of i k b. the present study was designed to observe the regulatory effect of cck - 8 on changes of immune functions induced by lps, the receptor mechanism and signal transduction mechanism involving mapk, stat3 and i k b at different levels including in vivo and in vitro, in order to study its immunomodulatory effect on reversing es and its molecular mechanisms

    Ikb的降解、並從w兒b復合物上解離是w4b激活的必需過程。 ccks是否通過抑制lps誘導的ikb降解，從而抑制nf幾b激活尚未見報道。本研究在整體、細胞及分子水平，觀察了ccke對lps引起的免疫功能改變的調節作用，研究了其受體機制及mapk 、 stat3和ikb的信號轉導機制，以探討cck七抗es時的免疫調節作用及其分子機制。
  2. Bing high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast applications in many areas such as plasama calefaction, linear accelerators, millimeter wave radar, communications, electronic countermeasure and so forth. prof. liu shenggang began the research on electron cyclotron maser, and later, the group leaded by prof. li hongfu has done much research work on gyrotron also, and later, they have began the research on a kind of gyrotron amplifier - - - - - - gyroklystron

    迴旋脈塞器件? ?迴旋管作為大功率毫米波源，在等離子體加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，因此受到了國際上的廣泛重視，特別是近三十年來，迴旋管得到了快速的發展，並成為了研究的熱門方向。
  3. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  4. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。
  5. This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway

    負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。
  6. In aqueous solution, interaction between crude venom and different bacteria including gram - positive bacteria, i. e. streptococcus mutans, streptococcus aureus, and gram - negative bacteria, i. e. e. colik12, was investigated in detail. molecule weights of multiple proteins were identified as 110kda, 47kda, 24kda, 23kda and 15kda by sds - page, respectively. it had little influence on extraction of snake venom proteins by the same cells of streptococcus mutans even used for 10 cycles

    其次，在利用s . mutans分離細菌特異性抗體的基礎上，首次利用細菌篩選作用蛋白，將革蘭氏陽性菌（ s . mutans和s . aureus ）和革蘭氏陰性菌（ e . colik12 ）分別與蘄蛇蛇毒相互作用，發現有五種蛇毒蛋白能夠與細菌相互作用，其分子量分別為110kda 、 47kda 、 24kda 、 23kda和15kda ；同時表明s . mutans菌體能夠多次與蛇毒相互作用，並且對作用蛋白的結合沒有影響。
  7. The chances of heavy metal into the plant cell were reduced and stress alleviated. ultrastructural observation of leaf cells of myriophyllum verticillatum linn, showed that la3 + coule alleviate the injury of cell structure produced by cr6 +

    對元素含量的測定表明，稀土元素降低了植物對重金屬的富集量，兩者表現出拮抗作用，減少重金屬離子進入植物葉片細胞的機會，從而減輕了毒害作用。
  8. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  9. Thin sections of host leaf cells infected by bbwv - 2 isolate b935, which were gold - labeled by antibodies of bbwv - 2 coat protein ( cp ) and vp37, respectively, were prepared to elucidate the locations of vp37 in cell and possible function of vp37 and cp in cell to cell movement. observation in electron microscope showed that virus particles were presented not only in cytoplasma but also in chloroplast, while vp37 was existed only in cytoplasma and associated with tubular structure through the cell wall

    為研究vp37在寄主細胞中的作用機制及其在細胞中的分佈，通過膠體金間接標記6his - vp37兔抗血清，同時還標記了病毒的外殼蛋白單克隆抗體，對bbwv - 2分離物b935感染的病葉超薄切片的電子顯微鏡觀察發現：病毒粒子除了聚集在胞質中，還存在於寄主的葉綠體內； vp37蛋白能在細胞壁上形成管狀結構，在胞質中亦有分佈。
  10. Mutated plasmid was transformed into e. coli tg1 cells to produce engineered peptide, then the peptide was purified by cm sepharose ion - exchange column. in vitro bactericidal assay and drug withdrawal were used to identify the bioactivity of the engineered peptide. the planar lipid bilayer membrane was used to assay the electrophysiology of the engineered peptide. toxicity studies on mammalian cells were used to assay the toxicity of the engineered peptide

    將重組質粒轉化入大腸桿菌tgi工程菌中，生產構建的工程多膚，離子交換純化后獲得工程多膚初步純化產物，體外抗菌試驗、藥物撤離試驗檢測工程多膚的抗菌活性，在人工脂質膜上測定其形成離子通道的特性以初步研究抗菌機理， ?並觀察其對真核細胞的毒性作用。
  11. Radiation effects have been investigated up to - 30 dpa by the heavy ion irradiation simulation and positron annihilation lifetime techniques in the home - made modified 316l stainless steel and the commercially available stainless steel and tungsten, which are used as the beam window materials for the spallation neutron source in accelerator driven radioactive clean nuclear power system ( ads ). their radiation resistance properties are compared

    本工作採用重離子輻照模擬和正電子湮沒壽命測量技術研究了加速器驅動潔凈能源系統（ ads ）散裂中子源束窗材料鎢、普通不銹鋼和國產改進型316l奧氏體不銹鋼在0 30dpa輻照劑量范圍的輻照效應，並對它們的抗輻照性能作了比較。
  12. Passive location technology, which does not radiate electromagnetic wave, can locate the radiant in a hidden way. featuring in long function range, high anti - interference capacity, it plays more important role in improving survival and operation capacity of electronic system in the electronic war. more countries put emphasis on the research of passive location technology is receiving

    由於無源定位技術能在自身不輻射的條件下，隱蔽地確定輻射源位置，具有作用距離遠、抗干擾能力強的特點，對于提高系統在電子戰環境下的生存能力和作戰效能具有十分重要的作用，因此對于無源定位技術的研究越來越受到各國的重視。
  13. Being high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast application in many areas such as plasma heating, linear accelerators, radar, communication, electronic countermeasure and so forth

    迴旋脈塞器件-迴旋管作為大功率毫米波源，在等離子加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，由此受到了國際上的高度重視。
  14. Being high power resources of millimeter - wave radiation, based on electron cyclotron maser, gyrotron has been pay much respect in the world for vast applications in many areas such as plasma heating, linear accelerators, millimeter wave radar, communications, electronic countermeasure and so forth. specifically in twenty years later, there was much developments on gyrotron

    迴旋脈塞器件? ?迴旋管作為大功率毫米波源，在等離子體加熱、線性加速器、雷達、通信及電子對抗等領域有著廣泛的應用前景，由此受到了國際上的高度重視，特別是近二十年來，迴旋管得到了快速的發展，並成為研究的熱門方向。
  15. The third part studied ecological effect of combined pollution for hms in plearotus ostreatus, measured the lingth and anti - weed - moulds ability of hyphae, biomass of plearotus ostreatus, biovailability of hms, hms enrichment, the variety of hms toxicity and the transformation amd redistribution ability of hms. the ecological dffect of hms on plearotus ostreatus is reviewed. hms mentioned above were harmful to the growth and yield of pleurotus, ostreatus, but cd could enhance billogical efficiency

    第三部分：研究重金屬復合污染物對平菇生態效應的影響，分析了菌絲生長速度和抗雜性，平菇的生物量，重金屬離子的生物有效性，平菇對重金屬的吸收與富集，重金屬毒性的差異和重金屬離子的分配和遷移，綜合分析了重金屬的交互作用對平菇的生態效應。
  16. Such mechanisms, which regulate water flux, are likely to be mediated, in part, by aquaponns. aquaponns are integral membrane proteins occurring in mammals, plants, and microorganisms, which serve as channels that permit the bidirectional passage of water through cellular membranes. the rate of transmembrane water flux may be controlled by changing the abundance or the activity of the aquaponns

    大部分水通道蛋白具有高度的專一性，只允許水分子通過而不允許其它分子及離子通過，因而調控水通道蛋白在生物膜上的數量和相對豐度能夠影響甚至改變細胞對水分的吸收和外排，對于提高植物抗鹽及抗旱性可能發揮著重要作用。
  17. Introduced infected by the turnip mosaic virus. there are many useful objective genes can be used in vegetable genetic transformation, but the research work of chinese cabbage genetic transformation is little. the reaserch on transforming chinese cabbage using agrobacterium - med ated method has n ' t been report at home and abroad. ln the test, tumv - cp gene was transferred into chinese cabbage ( brassica campestris l. ssp. pekinensis ) via agrobacterium - mediated method. a high effective regeneration and genetic transformatin system has been established, the detection by the method of molecular biology, has proved that the regenerative plants are transgenic plants and the target genes have been expressed transgenic plants partly. meanwhile transgenic progenies were traced and investigated so that heredity, stability and expression of target gene were researched. the virus resistant, stable plants were expected to obt ain so that theoretical base can be established for chinese cabbage breeding by gene engineering

    利用農桿菌介導法轉化大白菜抗病基因的研究工作在國內外未見報道。本課試驗採用農桿菌介導法將tumv - cp基因導入大白菜中，建立了高效的大白菜離體再生、遺傳轉化體系，並對轉基因植株進行分子生物學檢測，證實得到的再生植株為轉基因植株，目的基因已在部分植株上表達。同時，對轉基因植株的後代進行檢測，分析該基因所控制性狀的遺傳穩定性以及基因表達情況，為大白菜基因工程抗病育種提供理論依據。
  18. Inhibition of ros activity by catalase, n - acetylcysteine or diphenylene iodonium abrogated low k + - induced increases in the - subunit promoter activity, 1 - and 1 - subunit polypeptide abundance, and binding sites of na, k - atpase, indicating the role of ros in the effect of low k +

    抗氧化劑nac與catalase 、 dpi能抑制低鉀的作用。提示ros產生與細胞膜nadph氧化酶有關。進一步研究表明， h2o2 ，而非超氧根離子參與了低鉀對鈉鉀atp酶的調節。
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