查询词典 logarithmic potential

The partial least-squares regression model is built up to forecast crop leaf water potential of estival maize.Thirdly, atmosphere aspect, the low water age has been forecasting by R/S method of fractal theory in Si Chuan middle region. The chaotic behavior of agriculture meteorologic factors (average temperature, max temperature, min temperature, temperature of the earths surface, evaporators, precipitation, relative humidity, sunlight time) time series is investigated using the phase-space reconstruction technique, and the delay time and relation dimension and min embedding dimension and Lyapunov exponent and Kolmogrov entropy is calculated. The atmosphere water potential is calculated by surveyed data, and the day change law of atmosphere water potential and the relation between it and sun radiation has been discussed.

第三，关于大气方面，利用分形理论中R/S分析法对川中丘陵区的枯水年进行了预测；利用混沌理论的重构相空间技术，确定了农业气象因子(旬平均气温、最高气温、最低气温、地表温度、蒸发量、降水量、相对湿度、日照时数)的延时、关联维数、最小嵌入维数、Lyapunov指数、Kolmogrov熵，从而证明了以上各农业气象因子的时间序列具有混沌特性，为利用混沌理论预测各气象因子提供了科学依据；利用田间自动气象站的数据计算了大气水势并探讨了大气水势的日变化规律以及大气水势与太阳辐射的关系。

The oxidant 〓 plays indirect role in dissolving gold, and mainly controls the mix potential of Au in the alkaline thiourea solution. In which the "mix potential"is the decisive factor affecting the dissolution of gold. The reaction driving force is enough to have formamidine disulfide oxidize Au to Au〓 at the potential of about 0.4V. And then thiourea molecular complexes with Au〓 ion soon, which causes the fast dissolution of gold in the alkaline thiourea media. The dissolved weight of gold in 0.25 M thiourea solution with 0.05M Na〓SO〓 and 0.1M 〓 of pH 12. 5 by air at the temperature of 303K is 7. 8mg·cm〓 within 1hr.

在碱性硫脲溶金过程不起直接作用，而是通过S〓O〓来控制二硫甲脒有效形成的金在溶液中的混合电位；&混合电位&是影响碱性硫脲溶液溶金与否的决定性因素，在0.4V左右，有足够的推动力致使二硫甲脒氧化Au成Au〓，随后硫脲与Au〓络合形成稳定的络离子Au〓，从而使金快速溶解；温度为303K、pH为12.5时，在含0.05MNa〓SO〓、0.1M 〓及0.25M硫脲的溶液中，鼓入空气，金的溶解量在1hr内为7.8mg·cm〓；铜只有微量溶解，银、镍、铁则几乎不溶解。

The author respectively gave a brief account of the basic characteristics of ancient and today's geothermic field at 1000m and 2000m depth, coal measure strata pressure field at the depth less than 1600m, structural stress field from Jurassic to present, and ancient and today's fluid potential field (that is water potential and gas potential distributing in coal measure strata).

在本区瓦斯分带、已知煤层气显示及其组分研究基础上，探讨了低煤级煤层气的生成机制，指出生成的煤层气应包括褐煤阶段的原生生物甲烷气、长焰煤—气肥煤阶段的热成因甲烷气和煤层埋藏阶段的次生生物甲烷气三种成因甲烷气体；进而论述了煤储层含气饱和度、临界解吸压力、临储压力比、地解压差等甲烷解吸特征，实测与理论含气量、煤层气资源量与资源丰度等煤储层含气性特征。

Cumulative NH4+-N is a good evaluating index of soil N-supplying not only for the first season crop, but also for two successive season crops. ND is more correct in revealing the potential mineralizable nitrogen when SON was regarded as mineralized N, although cumulative SON alone is not a good index for the potential of mineralizable nitrogen. And cumulative TSN could also be taken as an index for the potential mineralizable nitrogen to some extent.

淹水培养期间铵态氮累积量是评价可矿化氮的较好指标，不仅适宜于第一季作物，而且也适用于连续两季作物；SON累积量不能单独作为；SON累积量不能单独作为反映可矿化氮的指标，但用ND反映土壤可矿化氮潜势时，包括SON后更加准确；TSN在一定程度上能够反映土壤可矿化氮。

MAIN OUTCOME MEASURES: The morphology of BMSCs was observed by the inverted phase contrast microscope. Expression of BMSC surface antigens was detected by flow cytometer. Osteogenous potential was assessed by alkaline phosphatase staining. Adipogenic potential was evaluated by Oil red O staining. Chondrogenic potential was assessed by toluidine blue staining.

主要观察指标：倒置相差显微镜下观察骨髓间充质干细胞的生长状态，流式细胞仪检测细胞表面标志物的表达，采用碱性磷酸酶染色鉴定成骨能力，以油红O染色鉴定成脂能力，以甲苯胺蓝染色鉴定成软骨能力。

The pitting potential and the free corrosion potential varied with aging time parabolically, however,the critical potential for intergranular corrosion linearly.

而点蚀电位和自腐蚀电位随时效时间呈抛物线变化，晶间腐蚀的临界电位则呈直线变化。

The cotton potential productivity of temperature in Henan was 4020-6220 kg·hm-2, the(3) The precipitational potential productivity of cotton in Henan is 650-5300 kg·hm-2, thedistribution of the value was same as radiational potential productivity.

2河南省棉花光温生产潜力为4020-6220 kg·hm~-2，总体而言，光温生产潜力的分布呈现东北高、西南低的趋势。

Our model is obviously superior to Rinker'smodel. because Rinker's model potential is a combination of Thomas-Fermi-Dirac potential and Hartree-Fock-Slater potential for the isolated ion.

我们的模型明显优越于Rinker的模型在于： Rinker的模型采用的是Thomas-Fermi-Dirac势和自由原子的Hartree-Fock-Slater势的迭加形式，而我们的模型中除离子的结构因子外，电子散射势、化学势及电离度等量都是通过自洽迭代方法计算的。

Synthetic ettringite precipitated from solution shows a highly positive zeta potential, hence it adsorbs great amount of negatively charged superplasticizer. Monosulfate has only a slightly positive zeta potential and adsorbs smaller amounts of superplasticizer. For syngenite, portlandite and gypsum, the zeta potential is around zero or negative.

以溶液沉淀析出法人工合成的AF具有较高的正zeta电位，能吸附大量带负电荷的超塑化剂，AF仅带少量正电荷，其吸附超塑化剂相对较少，钾长石、氮氧钙石和石青的zeta电位几乎为零或负值，因而基本不吸附超塑化剂。

To understand the change of evoked potential when hemorrhagic shock was treated. Method:(1) Record the normal wave of evoked potential before exsanguinated. Hemorrhage maked the blood pressure to 50～60 mmHg （6.65～7.98 kPa）, and recorded evoked potential.

(1)记录放血前诱发电位及放血后血压50～60 mmHg（6.65～7.98 kPa）时的皮层诱发电位，测量皮层诱发电位潜伏期正波值、负波值的幅度及峰峰值的幅度和时程。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。