赤熱溫度 的英文怎麼說
中文拼音 [chìrèwēndù]
赤熱溫度
英文
red heat temperature-
The activity of cold air and interannual variation of low level jet are important cause of interannual variation of the rainfall in april. interannual variation of subtropic high is the main cause of interannual variation of the rainfall in may over north china. there is significant negative correlation between interdecadal variation of the rainfall in april and that of sst in the areas of equatorial indian ocean and tropic middle - east pacifi
華北4月降水與熱帶中東太平洋、赤道印度洋海溫年代際變化呈明顯的負相關:華北5月降水與熱帶中東太平洋、赤道印度洋海溫年代際變化存在明顯的正相關:熱帶海溫的年代際異常引起的副熱帶高壓的年代際異常可能是影響華北4 、 5月降水異常的重要原因。It also explain that the correlation between ssta of kuroshio and the change of wind field in equaroral mid - pacific is results of air - sea interaction ; however, when time comes into summer, the instance status of ocean is different from the last winter to next early springtime, the sea surface temperature turn into the definitive factor, so the increase of heat flux in may to jun month which is realized by absorbing more heat from the sun radiation results in the decrease of sst in kuroshio in the season of jun - jul. finally, during the aug to dec season of next year, the sst of kuroshio is increasing again
最後分析了黑潮海溫與夏季東亞大氣環流及我國降水的時滯關系，發現：當前冬黑潮區域海溫異常偏高時，後期夏季亞洲低壓的強度減弱，西北太平洋副熱帶高壓強度加強，而且位置西伸、偏北，梅雨鋒位置偏南，長江中下游地區降水偏多，北太平洋冬季海域的海溫分佈呈+ 、 - 、 +趨勢（順序為赤道中東太平洋、西北太平洋、我國近海） ；反之亦然。The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides
進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。This was due largely to the development of an el nino in the year, which was characterized by above normal sea surface temperatures in the equatorial eastern and central pacific. the associated change in atmospheric steering flow caused tropical cyclones over the western north pacific to turn towards the north before entering the south china sea
厄爾尼諾是指在赤道太平洋東部及中部出現海面溫度異常變暖的現象，它導致大氣環流的改變，將北太平洋西部的熱帶氣旋引導向北移動，相對減少了它們向西移入南海的機會。When the indian ocean sst is positive ( negative ) anomaly, the rainfall increases ( decreases ) inspring, march and may ; when tropic middle - east pacific sst is positive ( negative ) anomaly, the rainfall increases ( decreases ) in spring and may
當赤道印度洋海溫異常升高（降低）時，華北春季及3 、 5月降水偏多（少） ；當熱帶中東太平洋海溫異常升高（降低）時，華北春季、 5月降水偏多（少） 。The mutant pel - d92l was expressed in pichia pastoris gs115, sds - page detection showed that the expression product pel - d92l - gs is different from pel - gs, and its " yield decreased dramatically, the themostability of pel - d92l - gs is also different from the pel - gs, but their optimum temperatures are same. 3. directed evolution of pel through random mutagenesis mutagenesis pcr carried out in error - prone conditions was used on the vector psk - pel, using the oligos " beginning " and " end ", homologous to the 5 ' and to the 3 " ends of the gene of pel respectively
三、 pel基因的隨機誘變用易錯pcr方法對pel基因進行隨機誘變， pcr產物與ppic3 . 5k連接，轉化大腸桿菌，獲得的混合質粒電轉化畢赤酵母gs115 ， omm平板篩選適于低溫或對熱穩定的重組子，篩選獲得一株最活反應溫度、熱穩定性、發酵酶活均有提高的突變體pel - ep5 - gs ，其最活反應溫度為45 ，比野生型高出5 ； 40處理30min殘留活性為56 ，大大高於野生型的6 ；初始ph7 . 3528條件下培養72h ，發酵上清酶活為325u / ml 。分享友人