重元素化學 的英文怎麼說
中文拼音 [zhòngyuánsùhuàxué]
重元素化學
英文
heavy element chemistry-
Isotopes are different varieties of the same element, which have identical chemical properties but differ in atomic weight
同位素是同一元素的不同種類，它們有著相同的化學特性但是原子重量不同。Using the multi - configuration dirac - fock method ( mcdf ), we studied the characteristic of the decay processes of the 4d core excited states of csiv, the low - lying excitation structure of super - heavy element bohrium ( z = 107 ) and the x - ray spectra of the 3d - 4f transitions of highly charged xenon ions in details in this work, by including the electron correlation and the relaxation effects systematically
本論文運用mcdf方法，通過系統考慮電子相關效應和馳豫效應，分別研究了cs離子的4d內殼層激發態衰變動力學特性，超重元素bh （ z = 107 ）的低激發態結構以及高離化態氙離子的3d - 4f躍遷產生的x射線譜的結構等問題。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。The inspection items include harmful existences ( pathogenic microbes, celozoic and ectozoic parasites, insects, weeds and other harmful substance ) ; residues ( pesticides and veterinary drug residues, heavy metal, chemical toxins, toxic substances, trace elements ) etc
檢驗項目包括有害生物（病原微生物，體內、外寄生蟲，昆蟲、有害物質、雜草等） 、殘留（農藥與獸藥殘留，重金屬，生物與化學毒素，有毒物質，超標的微量元素）等。There are two sets of elements geochemical anomalies : one extends nw, and is controlled by regional faults ; the other extends ne, and intersects with the former taking on " v " form, and is important to mineral exploration. 3. almost all au deposits are situated in greenstone belt of tectonic sutures
元素地球化學場表現出兩個方向的特點：一組異常呈北西向展布，受區域構造控制；另一組異常呈北東向展布，與北西向異常交叉呈「 v 」字形，具有重要找礦意義。Standard guide for displaying the results of chemical analyses of ground water for major ions and trace elements - trilinear diagrams for two or more analyses
地下水重要離子和微量元素化學分析結果顯示的標準導則.兩種或更多種分析質三線性圖Methods : hyperosmotic pressure animal model was established by administering 3 % sodium chloride as drinking water to rats or increasing osmotic pressure of the culture medium. osmoregulation positions in the brain, reciprocal projection pathways between the medullary visceral zone ( mvz ) and supraoptic nucleus ( son ) or hypothalamic paraventricular nucleus ( pvn ), oscillation of intracellular calcium in cultured neurons and astrocytes were studied by means of anti - fos, glial fibrillary acidic protein ( gfap ), tyrosine hydroxylase ( th ) or vasopressin ( vp ) multiple imrnunohistochemical staining, immuno - electronic microscope, wga - hrp retrogradely tracing and cell culture methods. results : ( 1 ) fos positive neurons within the mvz, parabrachial nuclei, locus ceruleus, pvn, son, subfomical organ increased markedly
方法：通過給予大鼠飲用3氯化鈉或提高培養基滲透壓濃度的方法復制高滲刺激模型，主要採用抗fos 、膠質原纖維酸性蛋白（ gfap ）和酪氨酸羥化酶（ th ） （或加壓素? vp ）免疫組織化學多重染色、免疫電鏡、 wga - hrp束路追蹤結合免疫組織化學多重染色、細胞培養等實驗方法，系統觀察了中樞參與滲透壓反射的調控部位、下丘腦視上核（ son ）神經元? ast超微結構的變化、延髓內臟帶（ mvz ）和son及下丘腦室旁核（ pvn ）之間往返投射通路和神經元的性質及其與ast的關系、培養神經元和ast內鈣波的變化。The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。Abstract : by utlizing abundant local resource of ytirium and combining the characteristics of magnesium, barium, calcium and silicon, a sort of composite nodulizer - ytirium - based heavy rare earth nodulizer was developed which is characterized by its good desulphurizing and deoxidizing rate effect, excellent effect to neutralize anti - nodulizing effect of trace elements, strong nodulizng effect and degeneration - resistance, good effect to fine matrix structure, decreased chilling tendency and wide scope of applicatiom using this nodulizer to produce some important castings such as water - cooled wall of blast furnace and roller could increase mechanical properties of central area and casting yield
文摘:利用江西省豐富的釔基重稀土，結合鎂、鋇、硅、鈣等元素的特性開發了釔基重稀土復合球化劑，該球化劑具有脫硫、脫氧、抗干擾元素、球化和抗球化衰退能力強，細化基體組織，白口傾向小，適用范圍寬等特點，應用於高爐冷卻壁，軋輥等關鍵鑄件上可提高心部力學性能和工藝出品率。The aim of the galaxy chemical evolution research is to reproduce the element abundance patter of stars and gas in the galaxy
銀河系化學演化研究的任務，從根本來說，是重現銀河系中恆星與氣體的元素豐度分布圖象。The average abundance distributions of heavy elements in metal - poor stars can provide fairly direct and detailed information on the nucleosynthesis in every stage after the formation of galaxies. furthermore, it can put more accurate constraints on the chemical evolution of neutron - capture elements. the solution to this problem will have important effect on the solution to a series of problems about nuclear astrophysics and the galactic evolution
貧金屬星的中子俘獲元素豐度分佈能提供星系形成后各個階段核合成的較為直接和詳細的信息，並為星系化學演化的研究提供更為準確的約束，這一問題的解決將對核天體物理及星系化學演化的一系列問題的解決產生重要影響。Major, trace element composition and sr - nd - pb isotopes of the cenozoic basalts from yangyuan ( hebei province ) and datong ( shanxi province ), which are located to west of the daxinanling - taihanshan gravity lineament, as well as mineral chemistry, major and trace element composition and sr - nd isotopes of mantle xenoliths from yangyuan are reported in this thesis
本文報道了大興安嶺-太行山重力梯度帶以西河北陽原和山西大同新生代玄武巖的元素和sr - nd - pb同位素地球化學及陽原幔源包體的礦物化學、元素和sr - nd同位素地球化學，據此對華北克拉通西部上地幔的性質和過程進行了初步討論。It is very significant for ba stars to heavy - element nucleosfynthesis and galactic chemical evolution
鋇星對于重元素核合成及星系化學演化的研究都有非常重要的意義。These greatly improve the quality of pge abundances in the earth ' s crust, crustal rocks and sediments published before 1980 ' s, and they are very important for theory geochemistry, exploration geochemistry and mine exploration of pges
這種對地殼、巖石和沉積物中鉑族元素豐度值的新認識，對理論地球化學、勘查地球化學甚至鉑族元素礦產勘查工作都具有重要的意義。The lyrics of pop songs are important element in hong kong s culture. the different ages of pop song lyrics cantonese opera, cantonese music, manda - pop and canto - pop witness and reflect hong kong s different stages of development, some of them are also outstanding literary works
流行曲詞是香港文化的其中一個重要元素，不同年代的流行歌詞（粵劇、粵曲、國語流行曲、粵語流行曲等）除了體現、見證、反映香港不同時代的發展，其中一些更是出色的文學作品。The lyrics of pop songs are important element in hong kong s culture. the different ages of pop song lyrics ( cantonese opera, cantonese music, manda - pop and canto - pop ) witness and reflect hong kong s different stages of development, some of them are also outstanding literary works
流行曲詞是香港文化的其中一個重要元素，不同年代的流行歌詞（粵劇、粵曲、國語流行曲、粵語流行曲等）除了體現、見證、反映香港不同時代的發展，其中一些更是出色的文學作品。The integrated study of heavy mineral, palaeocurrent direction, and sedimentary facies distribution has disclosed that the detritus are derived chiefly from the southeast and east - northeast during the deposition of the yanchang formation in the late triassic. the variations in the palaeocurrent directions have consequences for the development and distribution of the sequence stratigraphy and sedimentary facies of the yanchang formation. the major and trace element analyses of the mudstones from the yanchang formation also show that the lake waters would be freshened to brackish
初次通過泥巖常、微量元素測試資料和沉積學分析得出，延長期富縣探區湖泊水體屬于淡水-微鹹水，微量元素含量及其比值在剖面上的變化對延長期湖平面升降和氣候的演變具有良好的響應，湖平面升降、氣候演變對層序地層的發育有著直觀而又重要的影響。In this paper, we study the influence factors about acid - base titration jump and the stoichiometric point deducing approximate calculation formula of acid - base titration. some useful results are obtained
摘要本文推導出了強酸強堿、一元弱酸弱堿、多元弱酸弱堿滴定突躍、化學計量點的近似計算式，用公式說明了影響滴定突躍的因素及化學計量點的位置，並得出了一些重要結論。Distribution of heavy metals in the sediments from the yitong river : changchun section
沉積物重金屬元素化學形態分佈特徵Experimental simulation of chemical activity of heavy metals in coal gangue
煤矸石中微量重金屬元素化學活性的實驗模擬研究分享友人