Arbitrary Partially Entangled Three-Electron W State Concentration with Controlled-Not Gates

We describe an efficient entanglement concentration protocol （ECP） for an arbitrary partially entangled threeelectron W state. We show that with the help of two ancillary single electrons, the concentration task can be well completed. This ECP has several advantages： Firstly, we only require one pair of partially entangled states. Secondly, only two single electrons are used during the whole protocol. Thirdly, we do not require all the parties to participate in the whole process, and only two parties are needed to perform the operation. Fourthly, the protocol can 5e repeated to obtain a high success probability. This ECP may be useful in current quantum computation and quantum communication.     

The Electronic Structure and Formation Energies of Ni-doped CuAlO2 by Density Functional Theory Calculation

The electronic structure and formation energies of Ni-doped CuAlO2 are calculated by first-principles calculations. Our results show that Ni is good for p-type doping in CuAlO2. When Ni is doped into CuAlO2, it prefers to substitute Al-site. NiAl is a shallow acceptor, while NiCu is a deep acceptor and its formation energy is high. Further electronic structure calculations show that strong hybridization happens between Ni-3d and O-2p states for Ni substituting Al-site, while localized Ni-3d states are found for Ni substituting Cu-site.     

Study of just noticeable difference of the reverberance with Chinese instrumental music

The just noticeable difference （JND） of the reverberance was tested using the constant-stimulus, method. Some factors that may influence the tested results are analyzed to validate the experimental data. The test materials are the Chinese instrumental music. Three subjects groups were tested, including the audio technician group, the students from audio engineering department and a group of postgraduates majoring in acoustics. It is found that the value of JND of reverberance is about 25%. The difference possibly caused by the professional training and experience of different subjects groups is noticeable, but the difference caused by different music motifs is insignificant.     

激光成珠大小镶嵌高效率逆反射列阵膜

用激光制成的微珠 ,并用大小珠镶嵌成逆反射列阵膜; 从原理上和实验效果上均优于目前具有 代表性的中国椒江公司 901膜和美国 3M公司 8910膜 . 它对交通标志的更新换代和国防应用具有产业 化前景 .     

改进的基于过程代数的BPR方法及应用研究

针对基于过程代数的BPR方法在描述和分析复杂业务流程时存在的不足，提出了改进的基于过程代数的BPR方法，并应用该方法描述和分析传统物流配送业务流程，同时结合BPR原则和电子商务环境下物流配送的特点对传统物流配送业务流程进行重组，从而构建了适应电子商务环境的物流配送业务流程。最后，通过对流程重组前后评价指标的计算，取得了令人满意的结果。     

蔬菜中多溴联苯醚的定量测定及其对人体的生物有效性

建立了以索氏抽提,凝胶渗透色谱及硅胶-氧化铝复合层析柱净化,测定蔬菜中13种多溴联苯醚(PBDEs)的GC-NCI MS分析方法,方法的检出限以干重计为5.4 ～15.7 pg/g,加标样品的回收率和RSD分别为78% ～97%和0.6% ～10.0%.还研究了蔬菜中的PBDEs在人胃肠中对人体的生物有效性,胡萝卜和菠菜中PBDEs的总含量分别为424.1 pg/g和981.3 pg/g,对人体的平均生物有效性分别为33.5%和2.6%,计算得到13种PBDEs在胡萝卜和菠菜中的生物有效含量分别为132.6 pg/g和26.1 pg/g,研究结果对污染物的暴露风险评估有参考价值.     

人体尿液中双酚A与壬基酚的同位素稀释的LC-MS/MS分析

采用固相萃取、高效液相色谱-质谱/质谱仪同位素稀释技术,建立了尿中双酚A(BPA)和壬基酚(NP)的检测方法.液相色谱分离用C18柱,流动相为甲醇和水,负离子电喷雾模式电离,多反应离子监测方式检测,BPA和NP的定量离子对分别为m/z 226.9/132.9、219.3/118.8, 13C和氘代同位素化合物分别做回收率控制和内标定量.BPA和NP的基质加标回收率分别为86% ～106%、90% ～114%,定量下限分别为0.97、2.3 μg/L.实际尿样的测定验证了该方法的可行性.     

新型CNT/nano-TiO_2复合膜电极的制备及其异相电催化性能

采用溶胶-凝胶法制备了碳纳米管/纳米TiO2(CNT/nano-TiO2)复合溶胶,通过提拉法将复合溶胶涂覆在Ti基体上制得CNT/nano-TiO2复合膜修饰电极(C电极),其电化学性能经循环伏安、计时库仑、交流阻抗谱(EIS)等方法研究.研究结果表明,CNT可阻碍nano-TiO2粒子团聚.在循环伏安图中,C电极的氧化还原峰电流比nano-TiO2膜修饰电极(P 电极)的高出两倍多.通过对草酸溶液的异相电催化反应进一步证明C电极比P电极具有更高的电催化活性,而且对双氧水也有很强的异相电催化还原能力.     

手性不对称希夫碱铜配位聚合物的合成及其晶体结构

以手性不对称希夫碱为配体与铜离子在温和条件下合成了新的一维链状铜配位聚合物C54H68N6O8Cu2(1),其结构经IR,热重分析,元素分析和X-单晶射线衍射表征.1属单斜晶系,P2(1)空间群,晶胞参数为:a=11.268(5)(A), b=13.682(6)(A), c=17.604(7)(A), β=106.739(5) °, V=2 598.9(18) (A)3, Z=2, Mr=1 056.22, Dc=1.350 g·cm-3, F(000)=1 112, R1=0.037 0, wR2=0.095 9.1具有一维zigzag链结构.     

Expression of Hepatitis B Surface Antigen Gene in Ginseng Cells

The recombinant plasmid pBIBSa containing the HBsAg DNA fragment was transferred into Agrobacte-rium tumefaciens strain LBA4404 directly. Ginseng cells were transfected with A. tumefaciens carrying pBIBSa and the ginseng cell lines carrying HBsAg-S gene were obtained. The presence of target gene in the transfect cells was confirmed by PCR and RT-PCR. A clear band at the site of 700 bp was observed by agarose electrophoresis analysis of the samples containing the target gene. HBsAg expressed by the transgeni...