趨氧性 的英文怎麼說
中文拼音 [qūyǎngxìng]
趨氧性
英文
aerotaxis-
Abstract : based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
文摘:在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand, through multi - point analysis of a part of the minerals from mantle, the auther got dynamic information from mantle. finally, generalizating the fruits of this study and predecessors, the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites, clinopyroxenites, websterite, dunite, harzburgites, garnet lherzite, phlogopite lherzite, eclogites, clinopyroxene megacrysts ; compared with east china and north china platform, the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the. upper mantle beneath north hetian area is heterogeneous, with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204. 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits
最後，綜合本區幔源礦物和地幔巖石的特徵以及地球物理資料，得出如下結論：本區上地幔的物質組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金雲母二輝橄欖巖、榴輝巖；與中國東部以及華北地臺上地幔相比，研究區上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特徵，局部熔融程度較高；上地幔存在橫向和縱向的不均一性，從西部的克里陽到喀拉喀什河和玉龍喀什河流域， al和lree富集程度呈下降趨勢，不同來源的相同礦物中主元素的含量差異較大；地質歷史時期這里可能發生過地殼俯沖並產生殼幔混合作用；玄武巖漿的起源深度73km ；從幔源重砂礦物的溫壓估算結果，可以推斷出巖石圈厚度可達204 . 9km ；綜合巖石圈物質組成特徵、巖石圈熱狀態、地幔溫壓狀態、氧逸度以及幔源巖石和幔源礦物的化學成分，認為研究區具備了金剛石成礦地幔地質條件。Our experiments showed that the methed has many advantages, such as high extraction efficiency, simply process, less pollution, and the cost is smoll etc. but extraction quotiety of the dark brown pigment differ from walnut epicarp of the three made of dryness
色素溶液的吸光度隨波長增加而減小的趨勢相同，色素的水溶性，耐氧化一還原性，耐光性，鹽、蔗糖、金屬離子對色素的色澤的影響基本相似。The diameter of sno2 nanoparticles ranges from 20 to 60 nm. it was concluded that, with the use of the surfactant dbs, sno2 nanoparticles would more steady disperse in polyurushiol in nano scale. ft - ir and xps spectrum showed that there was some interacting between the phenol hydroxyl groups in urushiol mocular chains and sno2 nanoparticles
（ 3 ）紅外分析和xps分析表明， sno _ 2納米粒子與聚合漆酚中羥基氧原子或dbs中氧原子之間存在著一定程度的配位趨向這，可能是納米sno _ 2在dbs為表面活性劑的漆酚或聚合漆酚中能穩定分散的原因之一。The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered
氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。For instance, motile aerobic bacteria are positively aerotactic, whereas motile obigate anaerobic bacteria are negatively aerotactic
例如能動的需氧細菌表現出正的趨氧性，然而能動的厭氧細菌則表現出負的趨氧性。The results indicated : ( 1 ) during the jointing stage of winter wheat, the differences of catalase activity among different measures of soil water utilization are significant in shallow soil, in which the catalase activity of furrow planting with straw mulch is the highest and that of row - spacing - reduced and close planting is the lowest ; ( 2 ) the trends of catalase activity versus depth are almost the same for different treatments, looking like an inverse s ; ( 3 ) for furrow growing without mulch, the activity of soil catalase in the furrow is higher than that in the ridge ; ( 4 ) soil catalase activity reflects some effects from different techniques of soil water utilization and may be used as a indicator for micro - eco - environment in the fields
初步分析得出： （ 1 ）冬小麥拔節期，採用不同土壤水利用技術的冬小麥田淺層土壤過氧化氫酶活性差異明顯，以溝播不蓋秸稈處理的過氧化氫酶活性最強，縮行密植處理的最弱； （ 2 ）土壤過氧化氫酶活性隨深度的變化趨勢大體一致，呈反s形； （ 3 ）溝播不蓋秸稈處理溝中土壤過氧化氫酶活性明顯高於壟上； （ 4 ）土壤過氧化氫酶對於田間微生態環境具有指示作用，在一定程度上反映了土壤水利用技術對微生態環境的影響。Abstract : renews in this paper of the surfactant oil based for surface activies agent of anionic ( alcohol sulfate, sulfonata, acetyl cyanamid, and oleie methyl ester sulfonat etc. ) surface a ctivies agent of nonionic ( apg, alcohol polyxyethnyl ether, alkyl polyoxyethnyl alnyl hydroxyl ether etc. ), for technique improvement and develcpment trends
文摘:綜述了油基表面活性劑中陰離子表面活性劑（醇硫酸鹽， -磺酸鹽、酰基氰胺、油酸甲酯磺酸鹽等） ，非離子表面活性劑（ apg 、脂肪醇聚氧乙烯烷基醚、烷基聚氧乙烯烷基羥基醚等）的技術進展及今後發展趨勢。With the increace of zn stress, the content of chlorophyll, superoxide dismutase ( sod ) activity and soluble protein content dropped significantly, peroxidase ( pod ) and catalase ( cat ) activities rised at first and lowered later, and malonyl dialdehyde ( mda ) content increased drastically
隨鋅脅迫程度的增大，葉綠素含量、 sod （超氧化物歧化酶）活性和可溶性蛋白含量呈下降趨勢；而pod （過氧化物酶）和cat （過氧化氫酶）活性則先升后降； mda （丙二醛）含量上升。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
試驗結果表明：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；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試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，固體潤滑劑試樣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 。With succession of community, the activity of catalase increased gradually, and the vertical variation of the activity was affected by environmental factors and did n ' t show identical rule
華東師范大學博士學位論文摘要過氧化氫酶活性隨著演替的發展有逐漸增大的趨勢。各植被帶酶活性垂直分佈受環境因子的影響而沒有統一的分佈規律。The re suits showed that during storage, the wi value of lotus epidermis were decreased, but not much change in inner lotus root ; polyphenol oxidase activity and phenols content were both showed increased and then de creased ; the fiber content of lotus root can affect the change of tender ; taken the factor of wi value, tender and decomposed rate into account, the quality of jn dawolong was the best
結果表明：貯藏過程中表皮白度逐漸下降，但藕肉白度變化不大；多酚氧化酶活性和多酚含量變化均呈現出先上升後下降的趨勢；纖維素含量對藕的脆度變化有一定的影響；綜合白度變化、脆度和腐爛率等因素來考察， 3個品種中以濟南大臥龍品質最優。At present, the study of the fire safety evacuation in the world mainly focus on : ( 1 ) the importance of the model of egress and the ability of modeling predict a obvious tendency of the study is that there will be more behavior details included in the model in the future ; ( 2 ) the influence of the smoke and its toxicity to people which focus on the study of the influence of toxic gases such as carbon monoxide to people who exposed in fire, the test of the visibility of directional and exit signs, the behavior of the occupants in fire and the time they response to the fire ; ( 3 ) the application of the evacuation model in fire safety design, the constitute of performance - based code and building evaluating the purpose of the study of people ' s evacuation is to improve the fire safety design and cut down the number of casualties
人的生命是寶貴的，因此，世界各國的消防科研主要以生命安全為主，重點研究火災中人員的安全疏散，並提出新的性能化防火設計和性能化防火設計規范，從建築設計入手而保證建築防火設計的可靠性和建築物的火災安全性。目前，國際上對火災安全疏散的研究主要集中在以下方面： （ 1 ）疏散模型的開發和模型預測能力的改進疏散模型方面的研究一個明顯的趨勢就是未來的模型將包含更多的行為細節，注重人的行為的因素。 （ 2 ）火災中人員反應及毒性和煙的影響這一研究主要集中在一氧化碳等有毒氣體對暴露在火場中人員的影響，疏散指示標志的可見度測試，以及火災中人員的行為和對火災的反應等方面的研究。Results showed : ( 1 ) cbt cell death in low tempratures is accompanied by characteristic changes, such as, reduced cell size, distorted nucleus, chromatin condensation and margination and cell ( cytoplasmic ) vacuolization ; cell mortality and ca2 * concentration increase along with time passed in low temperature. mitochondrial membrane potential and 02 increased at first, and then decreased. activities of sod decreased at first, followed by significant increasing and finally depressed
結果表明： （ 1 ） cbt在低溫協迫下，細胞圓縮，細胞核變形，染色質濃縮且邊位，細胞質空泡狀；細胞死亡率隨處理時間的增加而增加；細胞內鈣離子濃度隨處理時間延長而遞增；線粒體膜電位差在低溫處理早期急速上升，隨后一直下降；細胞內超氧陰離子（ o _ 2 ~ - ）在低溫處理前期出現高峰，接著呈下降趨勢；細胞內sod活性在低溫處理前期減弱，接著上升，然後持續下降。Aerotaxis ( aerotactic movement ) a taxis in response to an oxygen concentration gradient
趨氧性:一種對氧濃度梯度產生回應的排序。The total ozone distribution over stratosphere layer in china appears obviously seasonal variation tendency, that is, the value of total ozone in spring and winter is higher than that in summer and autumn, while the maximum of surface o3 over waliguan is in summer, which is relatively late, approximately 2 - 3 months, it illustrates that the vertical transport from stratosphere has important effect to the increasing of surface o3. compare to the izana global observatory, surface o3 has been slowly increasing, but not so stable, it also shows that the monitoring of surface o3 has global scale, and its data has comparability in the world
（ 7 ）中國大陸上空平流層臭氧柱總量分佈存在明顯的季節變化趨勢，即冬春季臭氧柱總量高於夏秋季；瓦里關近地面層臭氧濃度最高值出現在夏季，落後平流層2 3個月，說明在瓦里關地區夏季平流層o _ 3的垂直輸送對地面臭氧濃度的增加發揮著重要作用； （ 9 ）與izana全球站相比，地面o _ 3均呈逐年上升趨勢，上升較為緩慢，且不太穩定，說明瓦里關地區地面o _ 3監測具有一定的全球尺度和國際可比性。The study status of inert anode materials for zinc eletrodeposition, such as lead and its alloys, ti / pbo2 anode, etc., are reviewed and the development trends are also prospected
摘要闡述了國內外鉛及鉛合金陽極、鈦基二氧化鉛陽極等鋅電積用惰性陽極材料的研究現狀，並對未來鋅電積用惰性陽極材料的發展趨勢進行了展望。The determining of biochemical conntents ofgrape leaves showed that with disease indexes to be high, protein content, soluble sugar were gradually low, but superoxide dismutase ( sod ) content was increase
隨著發病程度逐漸加重，葡萄葉片內可溶性蛋白質、可溶性糖含量逐漸下降，而超氧化物歧化酶活性則呈上升趨勢。After that the aoa in different parts of rose flower organs and petals from various developmental stages and have been investigated. it was found that the aoa of petals, stamen & pistil was higher than other parts ; the aoa of petals trended to be lower during the process of development, mature and ageing. 3
用5種不同方法證實了玫瑰花具有很強的抗氧化活性后，對其不同發育時期和花器官不同部位的抗氧化活性進行比較，發現花瓣和花蕊是玫瑰花的主要抗氧化部位；隨著發育、成熟和衰老，花瓣的抗氧化活性總體上呈下降趨勢； 3分享友人