CELINE追逐一次香艳的悸动

Celine今季的新品赚足了漂亮女孩和性感女人凝视的眼神。只有两个字可以用来形容它最新的风韵——香艳,让人来不及喘息就迫不及待地去追逐,想方设法,只要穿一双她的鞋子,提一款她的手袋,只为享受一次香艳的悸动。     

加拿大一枝黄花制浆研究(系列报道之四)碱——蒽醌化学浆漂白性能的研究

对加拿大一枝黄花碱-蒽醌化学浆D/CEpD和D/CEpD1EpD2漂白条件、漂白浆特性和D/CEpD漂白浆的打浆性能进行了研究.确定了较佳的D/CEpD和D/CEpD1EpD2漂白工艺.D/CEpD漂白较佳工艺条件:总用氯量为10%(D/C、D段用氯量比6.5∶3.5),Ep段H202用量1.0%.漂白浆指标:AP+AQ浆得率89.61%,卡伯值1.9,白度79.6%ISO,返黄值5.6,粘度71 8mL/g;KP+AQ浆得率91.00%,卡伯值1.3,白度82.3%ISO,返黄值4.7,粘度711mL/g.D/CEpD1EpD2漂白较佳工艺条件:总用氯量10%(D/C、D1和D2段用氯量比为6∶3∶1),Ep段H2O2用量1.5%.漂白浆指标为:AP+AQ浆得率88.11%,卡伯值1.2,白度83.8%ISO,返黄值4.0,粘度710mL/g;KP+AQ浆得率88.96%,卡伯值1.1,白度84.7%ISO,返黄值3.9,粘度708mL/g.     

NiaSi2O5（OH）4 Multi-Walled Nanotubes with Tunable Magnetic Properties and Their Application as Anode Materials for Lithium Batteries

Highly crystalline and thermally stable pure multi-walled Ni₃Si₂O₅(OH)₄ nanotubes with a layered structure have been synthesized in water at a relatively low temperature of 200–210 °C using a facile and simple method. The nickel ions between the layers could be reduced in situ to form size-tunable Ni nanocrystals, which endowed these nanotubes with tunable magnetic properties. Additionally, when used as the anode material in a lithium ion battery, the layered structure of the Ni₃Si₂O₅(OH)₄ nanotubes provided favorable transport kinetics for lithium ions and the discharge capacity reached 226.7 mA·h·g⁻¹ after 21 cycles at a rate of 20 mA·g⁻¹. Furthermore, after the nanotubes were calcined (600 °C, 4 h) or reduced (180 °C, 10 h), the corresponding discharge capacities increased to 277.2 mA·h·g⁻¹ and 308.5 mA·h·g⁻¹, respectively.      

高层建筑结构构思与建筑创作

本文通过实例探讨了高层建筑创作合理进行结构构思,处理建筑功能,技术与艺术矛盾的方法和规律。     

用酸性碘酸钾溶液直接滴定法测定亚硫酸钠含量

提出了一种用酸性碘酸钾溶液直接滴定亚硫酸钠溶液的方法,用以测定高浓度亚硫酸钠样品的含量。该方法与标准方法相比,不用易挥发损失的I2溶液和稳定性较差且配置标定较麻烦的硫代硫酸钠溶液,简化了操作,降低了分析成本。其镜密度较高,RSD≤0.18%,测定结果与标准方法无显著差异。     

吹风机注塑模具浇口的优化设计

浇口位置在注塑成型过程中起关键性作用。介绍专业注塑模分析软件MPI在吹风机注塑模具浇口位置设计的应用,从产品的填充时间、充模压力、流动前沿温度和熔接痕等方面对不同的浇口设计方案进行对比。分析表明,两浇口位置方案具有注射压力、锁模力小,熔接痕和气穴数量少的优点,是较佳的浇口位置方案。     

关于1.5—2.0万吨/年合成氨老厂改产尿素的意見(以天然气为原料)

一、前言华国锋主席在五届人大二次会议上所作的政府工作报告中阐述贯彻执行对国民经济进行调整、改革、顿整、提高的八字方针时,提出我国当前发展国民经济着重抓好的十项工作中、第一项就是“坚持贯彻以农业为基础的指导思想,集中力量把农业搞上去”,从一九五八年以来,全国小氮肥工业的发展,已象雨后春笋一般,蓬勃地发展起来,四川省的小氮     

汽车转向梯形机构最佳参数确定

对不同转向梯形机构给出了内外轮转角的关系，用加权量小二乘法和复合形法、约束随机射线法进行机构最佳参数确定；文中给出了算例，说明迭代过程收敛计算结果可信。     

Embedding ultrasmall Ag nanoclusters in Luria-Bertani extract via light irradiation for enhanced antibacterial activity

Ultrasmall silver nanoclusters(Ag NCs)with rich surface chemistry and good biocompatibility are promising in antibacterial application,however,further development of Ag NCs for practical settings has been constrained by their relatively weak antibacterial activity.Using the nutritionally-rich medium for bacteria(e.g.,Luria-Bertani(LB)medium)to coat active Ag NCs could further improve their antibacterial activity.Here,we provide a delicate design of a highly efficient Ag NCs@ELB antibacterial agent(ELB denotes the extract of LB medium)by anchoring Ag NCs inside the ELB species via light irradiation.The as-designed Ag NCs with bacterium-favored nutrients on the surface can be easily swallowed by the bacteria,boosting the production of the intracellular reactive oxygen species(ROS,about 2-fold of that in the pristine Ag NCs).Subsequently,a higher concentration of ROS generated in Ag NCs@ELB leads to enhanced antibacterial activity,and enables to reduce the colony forming units(CFU)of both gram-positive and gram-negative bacteria with 3–4 orders of magnitude less than that treated with the pristine Ag NCs.In addition,the Ag NCs@ELB also shows good biocompatibility.This study suggests that surface engineering of active species(e.g.,Ag NCs)with nutritionally-rich medium of the bacteria is an efficient way to improve their antibacterial activity.