A Research on Hong Kong Logistics Management of Company A

当今互联网时代，新兴的拉式供应链管理理念被快速的传播和应用，众多的研究和企业的实践推动着我国供应链管理和物流管理水平的不断提高，但目前这些研究和实践主要集中在拉式供应链的前端，即订单的预测，库存管理以及柔性和敏捷制造方面，而对于拉式供应链的后端，特别是拉式供应链导致的更大的客户需求波动性对后端物流配送的成本和管理带来的影响却涉及较少。 本文以知名的计算机制造企业A公司为研究对象，通过对其供应链后端的香港地区物流配送运作的全面分析和研究，展示了由客户需求拉动的供应链运作模式下，出货量的波动性给后端的物流配送带来的成本影响和管理压力，以及由于周末影响而导致的送货量积累给物流配送企业带来的运营管理...In today's Internet age, pushing supply chain management idea waned while the emerging concept of pulling supply chain management is quickly spreading and application. Numerous studies and practice driving our corporate logistics management constantly improve, but currently these studies and practice main concentrated in pulling supply chain of front-end, such as the prediction of orders, inventor...学位：管理学硕士院系专业：管理学院_工商管理硕士(工商管理硕士)学号：1792012115101

Study of rare earth orthovanadates and SrX2/RE2O3 (X=F, Cl) catalysis for oxidative dyhydrogenation of ethane

乙烷是天然气和炼厂气的主要成分，也是甲烷氧化偶联的主要产物之一。有别于热裂解，乙烷氧化脱氢（ODE）制乙烯是一条低能耗和更能有效地利用丰富的乙烷资源的途径。乙烷氧化脱氢可以在比乙烷蒸汽裂解低得多的温度下进行，因此在热力学上和工程上是十分有利的。 早在七十年代以来就有人开始对ODE反应进行了研究，到目前为止，已开发出一些具有较好反应性能的ODE催化剂,如Thorsteinson等报道的Li+-MgO体系和Li+-Cl--MgO体系及美国联碳公司的V-Mo-Nd-O体系。在这些催化剂上已获得了较好的结果，但仍然存在着诸如操作空速低，乙烷选择性低以及催化剂活性组分流失导致催化剂失活等缺点。具有高乙...Ethane is the secondary main composition of nature gas, and also the main composition of refinery gas and the product in OCM process .As an alternation routine from pyrolysis ,the catalytic conversion of ethane to ethene(ODE) is a more superior way for the effective utilization of the plentiful ethane routine, because of the higher ethane selectivities and the low reaction temperature associated w...学位：理学硕士院系专业：化学化工学院化学系_物理化学(含化学物理)学号：19972502

智能建筑与一卡通系统

本文介绍了智能建筑中门禁停车巡更消费一卡通系统的应用包括系统结构系统组成与系 统功

住宅智能化小区各系统的设计与分析

本文介绍了智能小区各个子系统的简单功能与工作模式供对智能小区有兴趣的读者参

抗人死亡受体5单链抗体ZF1对鼠H22肝癌细胞的作用分析

目的:研究抗人死亡受体5单链抗体ZF1对H22肝癌细胞体内外抑制增殖作用。方法:MTT法检测ZF1对H22肝癌细胞体外杀伤作用,流式细胞术检测ZF1诱导H22的凋亡率,建立H22移植瘤模型,随机分为PBS组、ZF1组、EPI组和ZF1/EPI联合组四组。观察肿瘤生长和小鼠体重变化情况。治疗13天后分离肿瘤组织,进行HE染色检查、TUNNEL法检测细胞凋亡。结果:体外实验显示:ZF1可抑制H22细胞的增殖,呈剂量依赖性,抑制率最高为84.5%。体内实验结果显示单独应用ZF1或联合应用ZF1/EPI时,肿瘤增长受到明显抑制。HE染色和TUNNEL分析结果表明ZF1可有效诱导肝癌肿瘤凋亡,ZF1/EPI联合组效果更明显,而对正常肝细胞无毒性。结论:单链抗体ZF1具有良好抑制H22细胞增殖的作用。ZF1和EPI联合应用效果更明显

锂氧电池双功能还原石墨烯-LaFeO复合纳米催化剂的制备及性能

制备具有氧还原（ORR）与氧释放（OER）双功能催化活性的特殊孔道结构电催化剂是锂氧电池研究的挑战之一。本文以氧化石墨烯、硝酸铁、硝酸镧、柠檬酸为原料,结合溶胶凝胶和水热合成方法,制备出还原氧化石墨烯（RGO）与铁酸镧（LaFeO）复合的双功能催化剂（RGO-LaFeO）。X射线衍射（XRD）、傅里叶变换红外（FTIR）光谱和Raman光谱分析结果确认该复合催化剂由纯相钙钛矿结构LaFeO和还原氧化石墨烯组成,扫描电子显微镜（SEM）观察到LaFeO纳米颗粒均匀地负载在RGO片层表面。锂氧电池测试结果指出,相对于LaFeO纳米粒子（NP-LaFeO）,RGO-LaFeO催化剂具有更好的ORR和OER催化活性,归因于RGO特殊的三维导电多孔结构与LaFeO纳米粒子的协同催化作用。以RGO-LaFeO作为阴极催化剂的锂氧电池在限1000 m Ah?g比容量、100 m A?g电流密度条件下,可实现36周稳定的充放电循环,展示出良好的应用前景。国家自然科学基金(21621091)；国家重点研发计划(2016YFB0100202)资助项目~~

Reduced Graphene Oxide-LaFeO3 Composite Nanomaterials as Bifunctional Catalyst for Rechargeable Lithium-Oxygen Batteries

制备具有氧还原(ORR)与氧释放(OER)双功能催化活性的特殊孔道结构电催化剂是锂氧电池研究的挑战之一。本文以氧化石墨烯、硝酸铁、硝酸镧、柠檬酸; 为原料,结合溶胶凝胶和水热合成方法,制备出还原氧化石墨烯(RGO)与铁酸镧(LaFeO_3)复合的双功能催化剂(RGO-LaFeO_3)。X射线; 衍射(XRD)、傅里叶变换红外(FTIR)光谱和Raman光谱分析结果确认该复合催化剂由纯相钙钛矿结构LaFe03和还原氧化石墨烯组成,扫描电子; 显微镜(SEM)观察到LaFe03纳米颗粒均匀地负载在RGO片层表面。锂氧电池测试结果指出,相对于LaFe03纳米粒子(NP-LaFeO_3),; RGO-LaFeO_3催化剂具有更好的ORR和OER催化活性,归因于RGO特殊的三维导电多孔结构与LaFeO_3纳米粒子的协同催化作用。以RGO; -LaFeO_3作为阴极催化剂的锂氧电池在限1000 mAh·g~(-1)比容量、100; mA·g~(-1)电流密度条件下,可实现36周稳定的充放电循环,展示出良好的应用前景。Development of electrocatalysts is one of the challenges in the development of the lithium-oxygen battery, especially the synthesis of catalysts with special pore structures and excellent bifunctional catalytic performance for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). In this article, a reduced graphene oxide-LaFeO3 (RGO-LaFeO3) nanocomposite electrocatalyst was synthesized by combining sol-gel and hydrothermal methods and using graphene oxide, lanthanum nitrate, ferric nitrate, and citric acid as raw materials. The prepared samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy. The results confirmed that the RGO-LaFeO3 was composed of pure phase LaFeO3 with a perovskite structure and RGO and that the LaFeO3 nanoparticles were loaded uniformly on the RGO layer surface. In comparison with a LaFeO3 nanoparticle (NP-LaFeO3) catalyst, RGO-LaFeO3 exhibited superior activity for both the ORR and the OER when it served as the cathode of a lithium-oxygen battery. The higher catalytic activity of the RGO-LaFeO3 is attributed to the synergistic effect of the special three-dimensional electronic conductive structure of RGO and the intrinsic catalytic property of LaFeO3. It was shown that the lithium-oxygen battery with the RGO-LaFeO3 cathode can be cycled stably up to 36 reversible cycles under conditions of a limit discharge depth of 1000 mAh.g(-1) and a 100 mAg(-1) current density for charge-discharge. The study illustrates that the RGO-LaFeO3 bifunctional electrocatalyst is a promising candidate for the cathode in lithium-oxygen batteries.National Natural Science Foundation of China [21621091]; National Key; Research and Development Program of China [2016YFB0100202

书写工具对来华留学生汉语写作测试的影响

包括写作在内的电脑施测已渐成语言水平考试的一个发展方向。该研究通过实验、问卷及访谈比较了来华留学生 纸笔与电脑写作的态度、体验及成绩，并发现：多数留学生认为纸笔与电脑写作是两种不同的写作过程，其电脑写作的自我效 能感更高，其电脑写作的成绩高于同等难度作文的得分，且两者成绩差距达到统计显著水平。由此，大规模或高风险作文测评 或应尽量实现电脑作答。2008 年度福建省教育厅教育考试A 类社会科学研究项目（编号:JA 08290S）资

福州市2010年甲型H1N1流感病毒分离株血凝素基因分子进化分析

目的了解福州市2010年甲型Hl N1流感病毒HA基因的突变和分子进化。方法采用RT-PCR技术扩增流感病毒A/Fuzhou/2/2010(H1N1)血凝素HA基因,测定核苷酸序列,用Clus-talX 1.83软件进行序列比对,用Bi-oedit软件的Clusta W程序进行序列同源性分析,用Mega 5.0软件以邻位相连算法(NJ)构建系统进化树。结果福州市2010年甲型Hl N1流感分离株A/Fuzhou/2/2010(H1N1)与福州市2009年首例甲型Hl N1流感病毒株HA基因同源性为98.9%,与疫苗参考株A/California/07/2009 HA基因同源性为98.5%;HA1区段有11个位点发生改变。结论福州市2010年甲型Hl N1流感病毒血凝素虽然个别氨基酸位点发生了突变,但在抗原决定簇位点的氨基酸并没有发生变化,未出现具有显著意义的抗原漂移

A preliminary study on the induction of spawning by sex pheromones in Bostrichthys sinensis

在陶瓷人工产卵管道内吊挂性外激素的研究表明,卵巢提取液对雄鱼的吸引作用大于雌鱼,而精巢和贮精囊提取液对雌鱼的吸引作用则大于雄鱼,17α-P、17α,20β-P和PGE2对雌鱼和雄鱼均具有相似的吸引作用。雌鱼在管道内的产卵次数、产卵量以及成熟卵的受精率均与产卵管道内吊挂的性外激素种类有关,17α,20β-P和PGE2两个实验组产卵次数最多,其中PGE2实验组的产卵量和受精率最高。17α-P在贮精囊和精巢提取液中的含量显著高于卵巢提取液(P精巢提取液>卵巢提取液。卵巢提取液刺激雄鱼所引起的平均EOG高于雌鱼,而精巢和贮精囊提取液刺激雌鱼所引起的平均EOG高于雄鱼,雌鱼和雄鱼对17α-P、17α,20β-P、PGE2和PGF2α刺激所产生的平均EOG,以PGE2为最高。The results obtained from fixing sex pheromones to the inside surface of the artificial ceramic spawning nests showed that ovarian extract attracted more males than females to enter the nests, while testis extract and seminal vesicle extract attracted more females than males. 17α-P, 17α, 20β-P and PGE_2 were equally effective in attracting both females and males. Spawning frequencies and the spawned egg number of females as well as fertilization rates were related to different kinds of sex pheromones. The most spawning frequencies were found in both 17α, 20β-P and PGE_2 treated groups. The greatest spawned egg number and the highest fertilization rate were observed in PGE_2 group. The levels of 17α-P in seminal vesicle extract and testis extract were significantly higher (Ptestis extract>ovarian extract. The mean EOG, stimulated by ovarian extract, was higher in males than in females, whereas the mean EOGs, stimulated by testis or seminal vesicle extract, were higher in females than in males. The mean highest EOG of both females and males in response to 17α-P,17α, 20β-P,PGE_2 and PGF_(2α) was observed in PGE_2 group.国家自然科学基金资助项目(40276040