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But good in low salt soil (.43 %),compared with their perennial, the salt-tolerant adaptability of Halocnemum strobilaceum and Kalidium foliatum seedlings is weak.
盐节木和盐爪爪幼苗的根长与土壤含盐量相关显著,两种植物幼苗在高盐下生长不良,在土壤全盐小于0.46%生长良好,远较其多年生植株耐盐能力小。
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The rules of exchange is complied with the Contract Law of P.R.of China and GB/T1876-2003(Norms of Bulk Commodity Electronic Trading) which is promulgated by Ministry of Commerce.Thanks to the E-commerce technology that we can organize the domestic and abroad mineral deals by quoting,matchmaking,ordering on our website(www.bbgme.com).Following the transaction principles of good faith,openness,fairness and impartiality,we carry out three trading models:spot transaction,bidder auction transaction an mid-to-long term spot transaction.Meanwhile, we will hold the minning machinery and equipment fairs,exploration right and mining rights transfer business.
中心根据《中华人民共和国合同法》、《大宗商品电子交易规范》等相关法律法规,运用电子商务信息技术组织国内外的矿产品交易商、依托本中心网站www.bbgme.com的交易平台,通过互联网直接上网报价、配对,以网上订货的方式交易模式,同时开设矿山设备展销和矿业权转让业务,提供信息、资金、仓储、质检、物流、结算、融资等一体化的全方位服务,是国内首家实现全电子化及无场地交易的矿产品交易中心,致力于为客户提供健全、透明和高效的交易平台,帮助客户实现集资和投资的目标。
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Density Functional Theory method was used to optimize the geometries of 209 PCDE molecules, 209 PBDE molecules and 75 PCDD molecules at the B3LYP/6-31G* level. Using computed structural parameters as theoretical descriptors, the forward stepwise multiple regression technique was adopted to obtain QSPR models of environmental partition properties for these POPs by using GQSARF 2.0 and SPSS12.0 for windows programs. The obtained QSPR models are as follows:(1) QSPR models for predicting subcooled liquid vapor pressure, n-octanol/water partition coefficients lgK_(ow and subcooled liquid water solubilities -lgS_(w,l of PCDEs, of which correlative coefficients (R~2) are 0.988, 0.958 and 0.959 and the root-mean-square-error of estimation are 0.134, 0.116 and 0.327 respectively.(2) QSPR models of lgPL and n-octanol/air partition coefficients lgK_(oa for PBDEs, which both contain three structural parameters. The values of R2 for the two models are both 0.997 while the values of RMSEE are 0.073 and 0.062 respectively.(3) QSPR models of lgKow and–lgS_ for PCDEs, which both have one variable (mean molecular polarizability,α). The values of R~2 for the two models are 0.978 and 0.866 and the values of RMSEE are 0.300 and 0.270 respectively.(4) The molecular structures of 24 substituted naphthaline compounds were optimized using Hartree-Fock and DFT methods at four different levels and the same means was used to obtain four three-parameter (EHOMO, q~+ andα) QSPR models of lgK_. The model at the HF/6-311G** level is the best one of which R2 is 0.9662 and RMSEE is 0.380.(5) QSPR study for environmental partition properties of PCDEs was also performed using position of Cl substitution method in which simple parameters of substitution position were taken as descriptors. The multiple linear regression was performed with GQSARF 2.0 and SSPS 12.0 for windows programs to obtain QSPR models of lgP_L, lgK_ and–lgS_ for PCDEs of which R~2 are 0.991, 0.983 and 0.965 and RMSEE are 0.311, 0.100 and 0.300 respectively.
采用密度泛函理论方法在B3LYP/6-31G*水平上对PCDEs、PBDEs和PCDDs的分子结构进行了全优化计算,以计算得到的量子化学参数作为理论描述符,采用GQSARF 2.0和SPSS 12.0 for windows统计程序进行正向逐步回归分析,建立了这些POPs的环境分配性质的QSPR模型:(1) PCDEs的过冷液体蒸汽压、正辛醇/水分配系数lgK_(ow和水溶解度-lgS_(w,l的QSPR模型,这3个QSPR模型的相关系数(R2)分别为0.988、0.958和0.959,估计的均方根误差分别为0.134、0.116和0.327;(2) PBDEs的lgPL和正辛醇/空气分配系数lgK_(oa的QSPR模型,这两个模型都包含三个分子结构参数,其R~2都为0.997,RSMEE分别为0.073和0.062;(3) PCDDs类化合物的lgK_和-lgS_w的QSPR模型,两个模型都只含一个变量,其R~2分别为0.978和0.866,RSMEE分别为0.300和0.270;(4)采用Hartree-Fock和DFT方法,在4种不同水平上优化计算了24个取代萘系列化合物的分子结构,采用上述同样的方法分别建立了四种水平上的三变量lgK_模型,通过比较得到,在HF/6-311G**水平计算得到的模型最好,R为0.966,RSMEE为0.380;(5)同时,采用氯原子取代位置方法对PCDEs的环境分配性质进行QSPR研究,建立了PCDEs的lgPL、lgK_和-lgS_的QSPR模型,其R~2分别为0.991、0.983和0.965,RSMEE分别为0.110、0.100和0.300。
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PPAR γ agonist displayed obvious renoprotective action,the mechanism was complicated, it could improve the metabolism of glucose ang lipid, depress blood preasure, protect small vessels endothelium,improve the system activity of blood clotting and fibronolysis, antiinflammation, otherwise the action was more obvious with the time passed, at the early stage the effective was better,so encourage the patients to take the medicine earily; when the patients with the mediate reanl function failure, Avandia did not display significantly renoprotective action, side reaction had no difference compared to the control group,was not necessary to regulate the dose of Avandia.But because of the sample size was small, we needed a biger sample to confirm the results. We confirmed that Prol2Ala had no difference in control case,diabetic nephropathy group and diabete group,In diabetic group and diabetic nephropathy group, Ala carriers compared to noncarrier all kinds of biochemical indicators were not different,Prol2Ala did not have association with diabete and diabetic nephropathy. But because of the sample size was small, weneeded a biger sample to confirm the results.
PPARγ激动剂对糖尿病肾病具有明显的保护作用,保护作用的机制是多方面的,除了改善糖脂代谢,降低血压外,还具有保护小血管内皮,改善凝血和纤溶系统活性,抗炎症等多方面的作用,且作用随着用药时间的延长而日趋明显,在疾病的早期应用效果更佳,故提倡早期用药;对伴有慢性肾功不全的患者,罗格列酮对肾脏靶器官的保护作用显现的并不明显,但副作用与对照组无明显差异,不用根据肾功情况调整用药,但由于样本量较小,上述结论尚需大样本进行进一步证实;本实验研究得出Prol2Ala变异在健康对照组、糖尿病组及糖尿病肾病组均无显著差异,糖尿病组及糖尿病肾病组临床各生化指标与Prol2Ala变异亦无相关性,Prol2Ala与糖尿病及糖尿病肾病不相关。
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The mechanism of the UV-induced photochemically photochromic process of 1,2-bis-(2',5'-bimethyl)-3'-thienyl-perfluoro-cyclopentene was investigated using two-dimensional(2D) FTIR spectroscopy.
利用二维相关红外光谱方法首次研究了1,2-二(2',5'-二甲基-3'-噻吩)-全氟环戊烯在紫外光照引发下发生光化学闭环反应的历程。
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The author refers to lots of literatures and datum on Internet, observe and study on board, understands the structure and operation process of the IPS podded propulsion.
作者查阅了大量文献及互联网资料,并多次上船观摩,学习,掌握了第一手相关资料,明确了吊舱式全电力推进系统的工作与操作原理。
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However,essential hypertension is a polygenic disease and both genetic and environmental factors play important roles in its development.
近年来用微卫星标记进行全基因组扫描和连锁分析,它已成功地用于多基因病相关基因的定位克隆研究。
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Based on the definition of congruent relation, the algorithm and concept of generalized relation were put forward, and statistic linear correlation and gray relation were unified in the reflectional relation.
在全等关联概念的基础上,提出了广义关联和映射关联的概念和算法,将统计线性相关和灰色关联统一在映射关联中,证明灰色关联是一种保比关联,提出了影响的定量概念。
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Based on the definition of congruent relation , the algorithm and concept of generalized relation reflective relation were put forward , and statistic linear correlation and gray relation were unified in the reflectional relation .
在全等关联概念的基础上,提出了广义关联和映射关联的概念和算法,将统计线性相关和灰色关联统一在映射关联中,证明灰色关联是一种保比关联,提出了影响的定量概念。
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Results 45 infarct related arteries among 40 cases acquired coronary artery repatency with TIMI 3 degree flow, a success rate of 95.2%(40/42), the residual stenosis in repatency coronary arteries was from 0 to 20%. The clinic symptom of the 5 cases with left ventricular dysfunction and 2 of the 3 cases with cardiogenic shock were obviously improved, 1 case(2.5%) with cardiogenic shock was dead in hospital.
结果 40例患者中的45支梗塞相关血管获得再通,成功率达95.2%(40/42),均达到TIMI-3级血流灌注,再通血管残余狭窄0%~20%。5例合并左心功能不全(Killip分级Ⅱ~Ⅲ级)及3例合并心源性休克患者术后症状明显改善,住院期间1例死亡(病死率2.5%)。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?