劑量速率 的英文怎麼說

中文拼音 [liáng]
劑量速率 英文
dose rate
  • : Ⅰ名詞1 (藥劑; 制劑) a pharmaceutical or other chemical preparation 2 (某些有化學作用的物品) a...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 率名詞(比值) rate; ratio; proportion
  • 劑量 : [物理學] [醫學] dosage; dose; dosis劑量槽 dosage bunker; 劑量測定(法) dosimetry; health work; ...
  • 速率 : speed; rate; tempo
  1. In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased

    同時採用有機硅單體延遲滴加及添加水解抑制等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含;利用紅外光譜與差示掃描熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,利用醇解反應合成出水解、縮合反應較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;利用核磁共振對新型硅烷單體結構進行了證實;研究表明利用新型硅烷單體可以制備出高硅烷含的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。
  2. Our previous studies demonstrated that agmatine not only reduced the amplitude of action potential ( apa ), maximal rate of depolarization ( vmax ), velocity of diastolic ( phase 4 ) depolarization ( vdd ), and rate of pacemaker firing ( rpf ), but also prolonged 90 % duration of action potential ( apd90 ) in a concentration - dependent manner

    我們先前的實驗證明,胍了胺可依賴性地抑制兔竇房結起搏細胞的0相最大上升度( v _ ( max ) ) ,動作電位幅度( apa )和舒張期除極化度( vdd ) ,起搏細胞放電頻( rpf ) ,而且能延長90動作電位時程( apd _ ( 90 ) ) 。
  3. The suitable additives recombination can not only improve considerably the quality of chromium coating, increase the brightness, current efficiency, dispersion ability and sedimentation velocity, but also enlarge the application scope of chromium plating technology

    採用適當的添加復合不僅可以顯著提高鍍鉻層質,增加光亮度、電流效、分散能力和沉積度,而且可以擴大鍍鉻工藝范圍。
  4. In practical uses, the major performances of concrete are associated with the quantities, types and the service conditions of the expansion - admixture. the expansion admixtures of concrete available at present still have many shortcomings, such as the greater quantities required, the non - relevance between developments of concrete strength and durability and expanding speeds of expansion admixture, the evaluation of expanding effects, the def of aft etc. unfortunately, few achievements in these aspects have been obtained all over the world

    在實際使用中,膨脹類型、摻及其使用條件對混凝土的主要性能影響很大,現有的膨脹存在著實際摻較大、混凝土強度及耐久性發展與膨脹的膨脹不協調、膨脹效能如何評價、鈣礬石aft相延遲性反應( def )等一系列問題,而目前國內外這方面的研究成果較少。
  5. The insulin-dosage rate is set in the electronic controller according to the patient's needs.

    胰島素的注射,可根據病人的需要在電子控制器中預先制定。
  6. A novel polyester thioure microcapsule was prepared using interracial polymerization with 1, 4 - benzenedicarbonyl diisothiocyanate and o - phenylenediamine. the influence of emulsifying agent, stirring speed and drug content on microcapsule performance were investigated

    摘要以對苯二甲酰異硫氰酸酯與鄰苯二胺為原料,通過界面聚合法合成了一種新型聚硫脲微膠囊,考察了攪拌、乳化、投藥等因素對微膠囊粒徑及釋放性能的影響。
  7. 8 - 1. 2g / min, and collection efficiency achieve 8 - 10 % under these parameters. through the study on the dispersion process of the nanoparticle tio2 in water, the author finds out that whisk time, dispersant types, dispersant concentration, dispersing time, ph value, temperature and electrolyte concentration have significant influence on dispersing effects. through contrastive and orthogonal experiments, the author obtains that composite dispersants have better results than single dispersants

    研究表明,液料等離子噴塗制備的納米tio :顆粒平均粒徑為10 ~ 50nln ,其晶型以銳欽礦為主,且隨著電弧功的增大,銳欽礦含減少;在本次實驗工藝參數下,收集為0 . 8一1 . 29 / min ,收集效為8一10 % o通過對納米ti02顆粒在水介質中的分散性研究,發現機械攪拌時間、分散種類及濃度、分散時間、 ph值、溶液溫度和電解質濃度對納米tio :顆粒的分散穩定性有很大的影響。
  8. In view of the poor thermal stability of polyoxymethylene ( pom ) induced by the residual catalyst and unstable end groups formed in the synthesis of pom. the pom was treated by amine, and the effects of the variety of amine compounds, treatment technology and water content on the thermal stability of pom were investigated ; the effect of triethanolamine on the thermal stability of pom was further studied by means of isothermal mass loss, isothermal mass loss rate, and formaldehyde emission amount

    摘要針對聚甲醛由於合成中殘留催化及不穩定端基導致其熱穩定較差的問題,採用胺對聚甲醛進行處理,並考察了胺種類、胺處理工藝及水用對聚甲醛熱穩定性能影響;採用等溫熱質損失、等溫熱質損失、甲醛釋放分析等方法對三乙醇胺對pom的熱穩定作用進行了進一步研究。
  9. The reaction kinetics of the sorbent with so2 was well described by the surface coverage model, which assumes that the sulfation rate is controlled by the chemical reaction on the sorbent grain surface and takes into account the surface covered by the product

    吸收與二氧化硫的反應可用表面覆蓋模式很好地描述;該模式假設吸收晶粒表面之化學反應為控制步驟,並且考被產物覆蓋的表面積。
  10. The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate

    採用pld技術進行了碳氮化合物薄膜沉積,得到了含氮為21at的cn薄膜;研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響,給出了cn薄膜中n含較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的氣相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ,得到了含n為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉積為滿足動力學平衡條件的各種反應過程的競爭結果;採用光學發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參對等離子體中活性粒子相對濃度和氣相反應過程的影響規律,給出了cn薄膜沉積的主要反應前驅物,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表面碳氮薄膜的生長模式;在金剛石研磨和催化fe處理的si襯底上進行cn薄膜沉積,證明了通過控制材料表面動力學條件可以改變碳氮薄膜結構特性,並可顯著提高晶態碳氮材料的生長
  11. The content of styrene was found to be dependent on the investigated grafting conditions, of which the dose rate and monomer concentration were the major conditions, and the dependence of the initial rate of grafting on the dose rate and the monomer concentration was found to be of 0. 4286 and 1. 1662 orders, respectively. the results indicate that the grafting reaction is competitive and the copolymerization and the graft - copolymerization are existing at the same time. the grafting proceeds by the so - called front mechanism in which the grafting starts at the surface of the films and moves toward the middle of the film by successive diffusion of the styrene through the grafted layers

    我們對輻射接枝反應中的各個因素如:單體濃度、輻射、輻射以及反應時間進行了研究分析,結果表明:單體濃度和是反應的兩個主要影響因素,它們對反應的影響指數分別為1 . 1662和0 . 4269 ;反應的動力學方程為: rg k [ d ] ~ ( 0 . 4269 ) [ m ] ~ ( 1 . 1662 ) ;認為接枝反應是一競爭反應,單體的均聚反應和在聚合物上的接枝反應同時存在,單體濃度的高低決定著競爭反應的方向;輻射接枝反應是從聚合物表面開始的,隨著溶的溶脹和單體的擴散最後在整個膜體中形成接枝產物。
  12. Based on above, the characteristics of hydration hardening process and microstructure of hsc as well as the interfacial layer between cement paste and coarse aggregate are investigated under low water cement ratio, high content superplasticiser and with one kind or more than one kind of mineral materials condition, the reaction mechanisms of different mineral materials are also discussed

    研究了不同水膠比、復合緩凝成分高效減水及礦物摻合料的摻加方式、摻對高強混凝土水泥漿體水化放熱過程和水泥漿體的水化熱、水化放熱以及最高溫升的影響規律。探明了高強混凝土中水泥漿體的水化硬化過程、礦物摻合料之間的相互作用機理。
  13. Standard practice for determining gettering rate, sorption capacity, and gas content of nonevaporable getters in the molecular flow region

    分子流動區域內不揮發吸收的吸收吸收能及氣體含
  14. It was found that polymerization rate was increased with the increased dosage of initiator or surfactant ; particle size of miniemulsion was kept relatively stable during polymerization when an initiator of lower solubility was used ; an increase in dosage of dpr reduced polymerization rate, but showed no significant impact on the final monomer conversion

    實驗結果表明:引發或乳化的用增加可以提高單體的轉化;引發水溶性的降低可以更好地控制聚合過程中的粒徑變化;歧化松香含的增加降低了聚合,但對單體的最終轉化影響不大。
  15. Synergist could improve photosynthetic characteristics of lower leaves, enhance the content of chlorophyll and photosynthetic rate of rice ; and the conductance to h2o and transpiration rate, inner condition of nutrient transportation and absorption power of rice root system were improved

    增效對水稻植株下部葉片光合性能有一定影響,促進葉綠素含增加、光合增大;還可提高處理水稻植株的氣孔導度和蒸騰,改善養分在植物體內的運輸條件,增加根系吸收養分的動力。
  16. The level of the nurse s training increased the likelihood that he she misunderstood the iv pump controls, which led to missing steps in the programmin of the dose and rate

    護士所受的訓練程度,增加她誤解輸液幫浦控制方式的可能性,於是造成設定步驟的錯誤。
  17. The results showed that with 1. 5wt % tih2, the porosity was the maximal and above 35 / min average heating rate, the porosity clearly increased ; and along with the increasing of compact pressure, preservation time and heating temperature, the porosity would be enhanced

    分析結果表明:當發泡tih _ 2含為1 . 5wt時,獲得的樣品平均孔隙最大。平均加熱達到35 min以上時,平均孔隙增加顯著。隨著壓實力的增大、保溫時間的增加和樣品最終加熱溫度的升高,平均孔隙均會增加。
  18. The reasons for higher oxidizer flow rate, lower fuel regression rate and lower motor performance in both hot firings are discussed. several necessary improvements for the test system are suggested. 6

    通過對兩臺發動機試驗結果的分析,找出了試驗中氧化偏高、燃料退移和發動機性能偏低的原因,並提出了具體的改進措施。
  19. Examination and maintenance of low dose rate of the varian cl2300c d medical linear accelerator

    型直線加器低故障應急檢修一例
  20. Abstract : spraying chemical controlling matter ( drought - resistant agent ) on wheat blade in medium - late growth period. we found it influenced transpiration rate, water - retaining capacity, containing water content of dry weight, seeping conductive rate, chlorphyll content and so on in different degree, and improved the moisture content stage of wheat, reduced the seeping of electrolyte, have an obvious effect on delaying decrepit and increasing production

    文摘:小麥生育中後期葉面噴施化學調控物質(抗旱) ,對蒸騰、保水力、干重含水、外滲電導和葉綠素含等均有不同程度的影響,明顯地改善了小麥的水分狀況,降低了電解質的外滲,有明顯的保綠延緩衰老的作用,增產效果顯著。
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