Study on processing technology and dissolution rate in vitro for xiaoyanlidan capsules 消炎利膽膠囊制劑成型工藝及體外溶出速率研究
Comparatively , soil column leaching method was much closer to the field reality than water dissolution rate method 相對(duì)而言,考慮土壤因子的土柱淋出率法較水中溶出率法更為接近田間實(shí)際。
Both of water and soil dissolution rates of sapcus decreased obviously along with the increase of sap coating rate 聚丙烯酰胺型高吸水性樹(shù)脂包膜尿素控緩釋效果好于交聯(lián)聚丙烯酸鹽型高吸水性樹(shù)脂包膜尿素。
In this dissertation , the research on films with lower dissolution rates and expecting better long - term effectiveness is carried out 本論文旨在研究、制備一種溶解度較ha小的、應(yīng)用時(shí)具有較好的長(zhǎng)期穩(wěn)定性的生物活性薄膜。
It is inferred that the dissolution rate and dissolubility of gypsum are the main decisive factors of cement performance of portland - sulphoalminate composite system 推導(dǎo)證實(shí),石膏的溶解速度和溶解度是決定硅酸鹽硫鋁酸鹽復(fù)合體系水泥性能的主要因素。
So considerable errors might occur if water dissolution rate method was used to estimate the fertilizer efficiency although the method can make quick comparisons of nutrient release rates among different crfs / srfs 水中溶出率雖可以快速比較不同控/緩釋肥的溶出速率,但用以估測(cè)肥料在田間的實(shí)際肥效,則產(chǎn)生較大的誤差。
The couple theory above - mentioned is applied at the crack tip of aluminum alloys , on ground of the theory , the experiment on the electrochemical action at the tip shows that the faster the strain rate is , the quicker the dissolution rate of the fresh surface of aluminum alloys is 將上述耦合理論應(yīng)用于鋁合金的裂紋尖端,并據(jù)此研究裂尖的電化學(xué)行為,發(fā)現(xiàn)鋁合金新鮮表面的溶解速率隨應(yīng)變速率的增加而增大。
Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid , such as dissolution rate of minerals ( include metal minerals ) in rock , concentration and saturation of aqueous species in fluid , temperature , pressure , and ionic strength etc . ; ( 2 ) variables related to structural deformation and fluid flow , such as stress , deformation rate , fracture network , porosity , fracture permeability ; ( 3 ) variables related to precipitation and mineralization , such as nucleation rate of gangue and metal minerals , accumulation precipitation of various minerals , etc . ; ( 4 ) spatio - temporal coupling relation of various variables above , such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming 模擬的主要內(nèi)容是在各種過(guò)程耦合作用下,以下描述構(gòu)造成礦體系的主要變量的時(shí)空演化:與成礦流體的形成和性質(zhì)有關(guān)的變量,如地層中礦物(包括成礦物質(zhì))的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強(qiáng)度等;與構(gòu)造變形和流體運(yùn)移有關(guān)的各變量,如應(yīng)力與變形速率、巖石孔隙度、構(gòu)造(斷裂)滲透率等;與沉淀成礦有關(guān)的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉淀量等;上述各有關(guān)變量間的時(shí)空耦合關(guān)系,如斷裂滲透率時(shí)空演化與流體流動(dòng)、匯聚和成礦的耦合關(guān)系等。
The influence of different gypsum on strengh of portland - sulphoalminate composite cement system is complicated , related with aluminiferouse mineral in cement system and the so4 ( superscript 2 - ) concentration of its hydrated solution ; in distilled water and maximum lime wash , the dissolution rate of dihydrate gypsum is higher than that of anhydrite but the dissolubility is lower 石膏品種對(duì)硅酸鹽硫鋁酸鹽復(fù)合體系水泥強(qiáng)度的影響較復(fù)雜,與水泥體系中含鋁礦物及其水化溶液中so4 (上標(biāo)2 - )離子濃度有關(guān);在蒸餾水和飽和石灰水中,二水石膏的溶解速度比硬石膏快,溶解度比硬石膏低。
Therefor , in the light of theory and methods of karst hydrogeomorphology and the knowledge of transformation , balance and variation of matter and energy in karst drainage basin , we can examine stone forest within a specific scope of time and space , and reveal the mechanism and the development model of stone forest with the help of the principle of the mutual response processes among base - level , water flow and forms . just based on the understanding above , the paper , with a special reference to the lunan stone forest which is the best developed one in china , discusses the hydro - geomorphlogical structure of the bajiang river , geomorphological types and spacial distribution feature of the stone forest , and studies the erosion rate on the top of stone forest , soil erosion rate , sub - soil dissolution rate and their combined influences on the evolution of stone forest , furtherly brings forward and demostrates the " tri - level erosion " mechanism for the development of stone forest 正是基于這種認(rèn)識(shí),本文以我國(guó)石林發(fā)育最完美的路南石林為研究對(duì)象,研究了巴江喀斯特流域的水文地貌結(jié)構(gòu)特征、石林的形態(tài)類型及其空間分布特征;探討了石柱頂部的剝蝕速率( a ) 、表土剝蝕速率( s ) 、土下溶蝕強(qiáng)度( c )及其組合對(duì)石林發(fā)育的影響,提出并論證了路南石林發(fā)育的“三重剝蝕”機(jī)制;通過(guò)對(duì)石林發(fā)育必備條件的剖析,以及對(duì)巴江喀斯特流域演變階段的定量研究、水文地貌系統(tǒng)的空間耦合分析,探討了巴江喀斯特流域的演變與路南石林發(fā)育間的關(guān)系,并結(jié)合該流域的演化史,提出了巴江喀斯特流域演變與路南石林發(fā)育的模式。