正離子層 的英文怎麼說
中文拼音 [zhēnglízicéng]
正離子層
英文
positive ion sheath- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 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...
- 層 : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
- 離子 : [物理學] ion
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In this dissertation, refining grains, depositing conductibility carbon film on the surface of the particles and doping mg ~ ( 2 + ) into the lattice of lifepo4 were adopted to improve the electro - chemical performance of the cathode material. the cathode material lifepo4 mainly has two flaws, the low conductibility and the slow li + ion diffusion, which have a bad influence on the performance of the cathode material
論文主要針對制約正極材料lifepo _ 4性能的兩大致命的缺點,即低的電子導電率和低的鋰離子擴散速率,採取材料顆粒的細化、顆粒表面沉積碳導電層以及mg ~ ( ~ ( 2 + ) )離子摻雜等措施對其進行改性探索,以提高正極材料lifepo _ 4的電化學性能。The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.
電離層反射電波的能力取決于不同高度上電子密度的正常差別。Study on the preparation of layered lithium manganate used as anode material of li - ion battery
鋰離子蓄電池正極材料層狀錳酸鋰的制備研究In this thesis, a kind of reversible immobilization method based on the plasma - polymerized film ( ppf ) used for effective immobilization of active bio - molecules and easy reproduction of sensors is developed. the surface of quartz crystal microbalance ( qcm ) is firstly prepared with plasma - polymerized film of butyl amine by glow - charge technique and then covered with a negative - charged polyelectrolyte by self - assembling. through strong electrostatic attraction, antibodies ( antigens ) positive - charged are immobilized for the determination of antigens ( antibodies )
本論文基於等離子體聚合膜,設計了一種既能固定生物活性物質又易於傳感器再生的可逆固定化方法,即採用輝光放電的等離子體沉積技術,先在石英晶體上沉積一層正丁胺等離子體聚合膜,再在膜上自組裝一層帶負電的聚電解質,用以靜電吸附固定抗體(抗原)測定抗原(抗體) 。This is minimal change disease ( mcd ) which is characterized by effacement of the epithelial cell ( podocyte ) foot processes and loss of the normal charge barrier such that albumin selectively leaks out and proteinuria ensues
微小病變性腎小球腎炎,特點是:臟層上皮細胞(足細胞)的足突消失,正常的離子屏障喪失,表現為選擇性白蛋白漏出,接著出現蛋白尿。Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays
二、具體研究工作的系統報告,主要集中在以下幾方面:研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型,為小范圍的單頻用戶服務;研究如何實時分離gps觀測中的儀器偏差與電離層延遲;研究如何建立較大區域的電離層格網模型,進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律;研究單頻用戶在不利條件下,如何更好地利用電離層延遲改正信息;研究利用gps監測隨機電離層擾動的基本理論和框架方案;研究如何綜合顧及電離層的周日、季節和年變化,進一步提高利用gps模擬電離層延遲的能力;研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。So the study and use of compound powders and thin films get more and more regards. among them the double layered structure nanocompound semiconductor become the focus of study by their high photocatalytic efficiency, fast reaction speed etc. it has been confirmed that the potassium niobate ( k4nb6o17 ) is an excellent semiconductor photocatalyst. its special construction consists in the ion k + in the interlayer can be replaced by other cations, which providing vast space of modifying the material
層狀化合物中的鈮酸鉀k _ 4nb _ 6o _ ( 17 )已被證實是一種性能優異的半導體材料,具有光催化和光電轉換性能,其獨特的結構是處于層間的帶正電的k ~ +可以被其它陽離子所替代,正是由於其多元素、復合型的特點,為材料的修飾和改性提供了廣闊的技術空間。Thus, the conclusion is drawn : when the diffusion coefficient of cf is invariable and the diffusion time is under a certain range, the beginning corrosion time of the steel in the corner of the rectangular section is independent of the size of rectangular section ; ( 4 ) through the numerical value calculation of rectangular section, the law is found of the influence on modifying coefficient of rectangular section of the thickness of protection layer of concrete and diameter of the steel and the thickness of cf on the surface of concrete, based on which practical calculating method of beginning corrosion time of the steel in the corner of rectangular section is set up
從而得到結論:在氯離子擴散系數一定的情況下,在一定時間范圍內,矩形截面邊角區域鋼筋的初始銹蝕時間不依賴于矩形截面的截面尺寸; ( 4 )通過矩形截面邊角區域鋼筋初始銹蝕時間的計算,分析了保護層厚度、鋼筋直徑、混凝土表面氯離子濃度對修正系數的影響,並在此基礎上建立了氯離子侵蝕下矩形截面邊角區域鋼筋初始銹蝕時間的實用計算方法。Many factors regarding the modifying coefficients of circular and rectangular section are analyzed : ( 1 ) it is theoretically proved that the diffusion coefficient of cl - in concrete is dependent of modifying coefficients ; ( 2 ) through analysis of the results of numerical value calculation, it is discovered that the relation between the modifying coefficients and the thickness of protection layer of concrete is linear, from which the function expression of these two variables is gain ; at the same time, the influence on modifying coefficient of the radius of circular section and the thickness of cl - on the surface of concrete ; based on these, practical calculating method of beginning corrosion time of steel of circular section is set up ; ( 3 ) to rectangular section, the diffusion of cf in concrete is two - dimension diffusion
討論了影響矩形截面以及圓形截面修正系數的因素: ( 1 )從理論上證明了氯離子在混凝土中的擴散系數與修正系數無關; ( 2 )通過圓形截面數值計算結果的分析,發現圓形截面修正系數與保護層厚度基本成線性關系,並建立了二者之間的聯系;分析了圓形截面半徑、混凝土表面氯離子濃度對修正系數的影響,從而建立了圓形截面鋼筋初始銹蝕時間的實用計算方法; ( 3 )在矩形截面氯離子侵蝕下,混凝土處於二維擴散狀態。本文通過計算分析,證明二維擴散的影響區域從邊角開始向中間逐步擴散,並證明了二維擴散影響區域依賴于氯離子擴散系數與氯離子擴散時間的乘積。The results showed : the relationships among cover of herbaceous layer, cover of liver moss layer, thickness of liver moss layer, thickness of root system twine layer and the distance between seedlings and adjacent tree were positive correlation ; the relation between litter and tile above five variables were negative correlation ; the variables of micro - habitat affecting seedling in the picea schrenkiana stand were generalized with moss, herbaceous, spatial distance, humus and litter ; litter and spatial distance between seedlings and adjacent tree were the most primary factors of micro habitat affecting regeneration of one year seedling
結果表明:天山雲杉林分中草本層蓋度、苔鮮層蓋度、苔鮮層厚度、根系盤結層厚度、幼苗距大樹的距離5個環境變量之間為正相關;枯落物與草本層蓋度、苔蘚層蓋度、苔蘚層厚度、根系盤結層厚度、幼苗距大樹的距離為負相關;天山雲杉林微生境綜合因子可概括為「苔蘚」 、 「草本」 、 「空間距離」 、 「腐殖質」和「枯落物」 ;影響一年生幼苗更新最主要的微環境綜合因子為「枯落物」和幼苗距大樹的「空間距離」 。Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found
本文較為系統地給出了海南地區電離層的參數變化特徵,特別是得到了一些暴時與以往不同的季節特性;第一次給出了海南地區的電離層等離子體漂移特徵,發現等離子體漂移暴時擾動在三個方向上有內在的聯系,得到了電場變化曲線;研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別;通過對強磁擾動事件期間的參數變化特性分析發現,在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區,高密度區底部電子密度梯度隨高度急劇增加,該區域的水平尺度可達100公里以上時間尺度約為2小時,連續出現過三次,這是一個在海南從來未發現的新現象;研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。This thesis focuses on the study of the layered lithium nickel - based oxides as catho de materials lithium - ion batteries, the main aspects follow : 1 study on the synthesis and properties of linixco1 - xo2 by the sol - gel method compared with solid - state method, sol - gel method enjoys the advantage of lower calcining temperature and small uniform particle size of products. after the xrd measurement, it was shown that the single - phase layered compound can be prepared in sintering temperature of 750 for 6 ~ 8 hours. the sintering temperature, the properties and the amounts of doping materials can all affect the product ' s phase, and its structure ( lattice parameter, crystal phase distance )
本論文的研究工作主要集中在作為鋰離子電池正極材料的層狀鋰鎳基氧化物上,包括以下幾個方面: 1溶膠凝膠法( sol - gel )合成lini _ xco _ ( 1 - x ) o _ 2的研究與固相合成法相比,溶膠凝膠法合成lini _ xco _ ( 1 - x ) o _ 2煅燒溫度低,產物顆粒均勻一致,經過xrd的測試過后,結果表明750下燒結6 8小時,即可得到單相產物;燒結溫度,摻雜劑的種類及摻雜劑量均對產物物相的形成產生影響,並對產物的結構產生影響。During the growing season, the ground water tables at each sampling point are falling, but the total salinity of the soil does not change much
這是因為180 240cm以上土層是根系大量分佈的層次,群落中的植物均以鹽生植物為主,它們在生長過程中能夠吸收土壤中的大量鹽分離子而保持正常生長。Modified linio2 which has the same layered structure with licoo2 is regarded as the promising cathode material for lithium - ion battery
改性linio2具有與licoo2相同的層狀結構,被認為是極具潛力的鋰離子電池正極材料。The preparation conditions of ion exchange technique adopted by the syntheses of layered lixmno2 was studied
本論文研究了用離子交換法制備層狀li _ xmno _ 2正極材料的實驗條件。The layered licoo2, linio2 and the spinel limn2o4 are common cathode materials for lithium - ion cells. there are few theoretic articles about the relationship between the electronic structure and performance of electrode material of lithium - ion cells
鋰離子電池正極材料常見的是具有層狀結構的licoo2 、 linio2和尖晶石結構的limn2o4 ,從理論上研究它們的電子結構與性能的關系的報道不多。Transition metal oxides with high inserted potential are used as cathode material of li - ion batteries generally. at present, layered compounds lico02, lini02 and spinel limn204 are extensively studied
具有高插入電位的過渡金屬氧化物常用作鋰離子電池的正極材料,目前研究較多的是層狀結構的licoo _ 2 、 linio _ 2 。分享友人