水性

MATERIALS AND METHODS: One hundred patients with lower urinary tract symptoms were instructed to keep a 3-day voiding diary. Patients were instructed to record the time and volume of their water intake, voided urine volume, and number and time of sensation of urgency and episodes of urge incontinence. Patients were diagnosed according to their clinical findings as having a normal bladder, hypersensitive bladder, overactive bladder, polydipsia polyuria, or nocturnal polyuria. Thirty-six patients underwent a urodynamic study to further assess their lower urinary tract dysfunction, for which urodynamic results were classified as a normal bladder, detrusor overactivity, or bladder hypersensitivity.

材料与方法：一百位具有下尿路症状的病人经由指示记录三日排尿日志，每一位病人均记录其喝水及排尿的时问和容量，以及感觉急尿或发生尿急失禁的次数，根据其临床发现诊断为正常膀胱、超敏感性膀胱、膀胱过动症、多喝水性多尿症，或是夜间多尿症，其中三十六位病人接受了尿动力学检查以进一步评估其下尿路功能异常，依其尿动力学检查分类为正常膀胱，逼尿肌活性过强，或是膀胱超敏感性。

Based on the coordinate bonding theory, a hydrophobic expansible polytetrafluoroethylene membrane was modified to make it hydrophilic.

采用配位键合理论对疏水性膨体聚四氟乙烯膜膜进行亲水改性，并对其用于水过滤过程的性能进行了研究。

Study of different types and different content of water-borne polyurethane resin modified.

研究不同类型及不同含量的环氧树脂对水性聚氨酯的改性。

Aqueous polyurethane dispersions have been extensively studied and applied in many fields.

水性聚氨酯分散体已经被广泛的研究，并己在许多方面得到了应用。

Aim To improve the water tolerance and low temperature resistance of polyvinyl acetate emulsion.

目的 改进聚醋酸乙烯酯乳液耐水性和耐寒性差的缺点。

Polyvinyl acetate emulsion is low cost,easy to produce,high bonding strength,environment friendly but poor water resistance.

聚醋酸乙烯酯乳液价格低、生产方便、黏合强度大、环保，但是其耐水性不好。

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐渐增高，最终显著高于常规耕作模式。2.2耕作模式对土壤水分的影响 0~20cm土层旋耕、耙耕和免耕模式土壤贮水量与同期降雨量显著正相关，相关系数皆大于常规耕作模式，耙耕相关系数为0.70**，达到极显著水平，土壤保水性好于常规耕作模式。

No differences were seen in meat samples frozen atdifferent times postmortem and thawed under the same conditions.

导致了不同时间冻结的肉样在冰晶大小和分布方面的不同，最终导致了保水性的差异。

The dissolubility of PPLA in water was (2.16～4.32)×10－2 mg·mL－1 according to eye judgment. The critical micelle concentration was 2.16×10－2 mg·mL－1 obtained from a fluorospectrophotometer. The self-assembled aggregates of PPLA in water were nanoscale spheres observed by a transmission electron microscope. The particle size and zeta potential tests by dynamic light scattering revealed that during preparation, the ratio of hydrophilicity/hydrophobicity, the aqueous medium and the pH had great influences; while dilution, freezing and pH change to basic condition had no effect after preparation, but pH change to acidic condition made the nanoparticles precipitate.

目测法得到其溶解度为(2.16～4.32)×10－2 mg·mL－1；荧光法得到聚合物的临界胶束浓度为1.12×10－3 mg·mL－1；透射电子显微镜观察显示该聚合物在水中的自组装聚集体为纳米级球形；动态激光光散射测试微球的粒径和Zeta电位发现，在微球的制备过程中，聚合物的亲/疏水性比例、水相介质及水溶液的pH值对它影响显著；而制备后，稀释和冷冻对它无显著影响，改变微球的环境pH值至酸性，出现聚集，至碱性无影响。

Membrane affinity quantified by IAM and liposome/buffer systems was a more efficient predicator of α values than hydrophobicity from n-octanol/buffer system. Consequently, not only hydrophobic force but also attractive polar extra-interactions involved in the binding to IAM and liposomal membranes but not in an n-octanol phase, ascribed to the binding process within AM. The binding to ordered lipid membrane in the larger part determined drugs'binding to AM intracellular compositions, and the ordered phospholipid plasma membrane was a potential site for drugs'binding in AM.

脂质体／水系统和磷脂膜色谱所测定的膜亲和性比正辛醇／水系统的疏水性更好的预测巨噬细胞内药物的α值，因此包含在磷脂膜色谱中但并不体现在正辛醇／水系统中药物与磷脂膜之间的额外吸引性极性作用力对药物在细胞内结合有着重要贡献；药物与有序磷脂膜的结合在很大程度上决定着药物与巨噬细胞内成分的结合，有序磷脂分子膜可能是巨噬细胞内部潜在的结合部位。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐