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Entanglement of Generalized Two-Mode Binomial States and Teleportation

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Communications in Theoretical Physics 2009年第4期51卷 631-636页

作者： wang dong-Mei yu You-Hong Department of Applied Physics Zhejiang University of Technology Hangzhou 310032 China

The entanglement of the generalized two-mode binomial states in the phase damping channel is studied by making use of the relative entropy of the entanglement. It is shown that the factors of q and p play the crucial roles in control the relative entropy of the entanglement. Furthermore, we propose a scheme of teleporting an unknown state via the generalized two-mode binomial states, and calculate the mean fidelity of the scheme.

关键词： entanglement generalized two-mode binomial states teleportation

Research on the novel asymmetric frequency division duplex technique

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The Journal of China Universities of Posts and Telecommunications 2006年第4期13卷 13-18页

作者： ZHANG Ying-hai wang Wei-dong dong yu ZHOU Kai-Jie Information and Electronics Technology Laboratory Beijing University of Posts and Telecommunications Beijing 100876 China

This article introduces a novel duplex transmission technique-asymmetric frequency division duplex （AFDD）. One of the characteristics in future mobile systems is asymmetric characteristic caused by service requirement and electromagnetic radiation, AFDD is designed to adapt to the new asymmetric characteristics. The AFDD puts forward a novel adaptive frequency-allocation scheme in downlink and uplink. Combining AFDD with code division multiple access （CDMA） communication system, it is proven that AFDD improves the capacity and coverage of the system compare with FDD CDMA system.

关键词： asymmetric characteristics AFDD Duplex Mobile communications

Preparation of Copolymer of Salen-crown Ether Complexes and its Catalytic Activation for Molecular Oxygen

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Chinese Chemical Letters 2006年第2期17卷 265-268页

作者： Rong Min wang Xiao dong LI yu Feng HE Gansu Key Laboratory of Polymer Materials Northwest Normal University Lanzhou 730070

A new stable salen Schiff base cobalt and crown ether sodium complex （SalCo-NaB18C6） was prepared through copolymerization. This copolymer complex was applied to catalytic oxidation of hydrocarbon compound with molecular oxygen without reductant, which was shown the higher activity and selectivity for ketone, and reused effectively.

关键词： Copolymeric complexes cyclohexene catalysis salen Schiff base crown ether.

A study of differential potentiometric stripping analysis for lead and cadmium with Nafion coated carbon fibre electrode

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Chinese Journal of Chemistry 1990年第6期8卷 507-511页

作者： dong Shao-Tun HE Jun wang yu-dong Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryAcademia SinicaChangchun130022

The differential potentiometric stripping analysis (DPSA) with Nafion coated carbon fibre electrode has been studied, and a method to determine lead and cadmium in urine directly has been attempted. The effect of various experimental parameters on the DPSA response is discussed. The experimental conditions include 0.2M sodium perchlorate, deposition potential of-1.0 or -1.1 V and using 20 ppm mercuric ion as oxidizing agent. The response of the signal is in linear relation with the concentrations of lead and cadmium respectively up to 0.5 ppm. The electrode coated with Nafion film alleviates the interference from organics in urine samples.

关键词： A study of differential potentiometric stripping analysis for lead and cadmium with Nafion coated carbon fibre electrode

Group-blind multi-user detection under multi-path channel

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The Journal of China Universities of Posts and Telecommunications 2010年第3期17卷 45-51页

作者： wang dong-yu LIU Wen-kai YANG Jun YANG Da-cheng Department of Electronic Engineering North China University of Technology Beijing 100041 China School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Communication and Information Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

This article proposes an improved generalized side-lobe canceller （GSC） receiver structure based on a new group constraint, which is suitable to eliminate multiple-access interference （MAI）, inter-symbol interference （ISI） in direct-sequence code-division multiple access （DS/CDMA） downlink multi-user system. The new group constraint is deduced to construct the group-blind adaptive multi-user detector. The analysis indicates that the improved GSC under the new constraint not only retains the property of suppressing ISI and canceling MAI, but also can extract useful information from the succeeding bit for the desired user. The simulations show that the improved GSC filter can cancel the MAI efficiently whether the wireless channel length is short or long,

关键词： group-blind detection GSC constraint ISI MAI

Decolorization of azo dyes with high salt concentration by salt-tolerant mixed cultures under anaerobic conditions

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Journal of Environmental Sciences 2005年第6期17卷 984-988页

作者： GUO Jian-bo ZHOU Ji-ti wang dong wang Jing yu Hui SONG Zhi-yong School of Environmental and Biological Science and Technology Dalian University of Technology Dalian 116023 China

Because the lack of detailed study of biological decolorization in high salt dye wastewater, it is still difficult to evaluate the biological treatment on high-salinity dye wastewater. The experiments were carried out to study the salt-tolerant bacteria, which is useful in the treatment of high-salinity colored wastewater. Simulated wastewater containing 5-150 g/L salt （NaCI） and 50-2000 mg/L Reactive Brilliant Red K-2BP was treated with three salt-tolerant mixed cultures （CAS, TAS, DSAS）, which were under a gradually acclimated procedure. With the increase of concentrations of salt and dye, the decolorization became low. The abilities of decolorization of dyes wastewater by three mixed cultures （CAS, TAS, DSAS） were studied, CAS and DSAS mixed cultures showed more active for the treatment of high-salinity colored wastewater than TAS mixed cultures. The results suggested that there might be a simple process for the high salt wastewater treatment, which could be incorporated into conventional activated sludge plants.

关键词： anaerobic decolorization hyper-salinity salt-tolerant mixed cultures

A versatile cooperative template-directed coating method to synthesize hollow and yolk-shell mesoporous zirconium titanium oxide nanospheres as catalytic reactors

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Nano Research 2014年第2期7卷 246-262页

作者： Buyuan Guan Tao wang Shangjing Zeng Xue wang dong An dongmei wang yu Cao Dingxuan Ma yunling Liu Qisheng Huo State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry 2ilin University Changchun China

The design of hollow mesoporous nanostructures for cascade catalytic reactions can inject new vitality into the development of nanostructures. In this study, we report a versatile cooperative template-directed coating method for the synthesis of hollow and yolk-shell mesoporous zirconium titanium oxide nanospheres with varying compositions （ZrO2 content from 0 to 100%）, high surface areas （465 m2·g-1） and uniform mesopores. In particular, the hexadecylamine （HDA） used in the coating procedure serves as a soft template for silica@mesostructured metal oxide core-shell nanosphere formation. By a facile solvothermal treatment route with an ammonia solution and calcination in air, the silica@mesostructured zirconium titanium oxide spheres can be converted into highly uniform hollow zirconium titanium oxide spheres. By simply replacing hard template silica nanospheres with core-shell silica nanocomposites, the synthesis approach can be further used to prepare yolk-shell mesoporous structures through the coating and etching process. The approach is similar to the preparation of mesoporous silica nanocomposites from the self-assembly of the core, the soft template cetyltrimethylammonium bromide （CTAB） and a silica precursor and can be extended as a general method to coat mesoporous zirconium titanium oxide on other commonly used hard templates （e.g., mesoporous silica spheres, mesoporous organosilica ellipsoids, polymer spheres, and carbon nanospheres）. The presence of highly permeable mesoporous channels in the zirconium titanium oxide shells has been demonstrated by the reduction of 4-nitrophenol with yolk-shell Au@mesoporous zirconium titanium oxide as the catalyst. Moreover, a cascade catalytic reaction including an acid catalyzed step and a catalytic hydrogenation to afford benzimidazole derivatives can be carried out very effectively by using the accessible acidity of the yolk-shell structured mesoporous zirconium titanium oxide spheres containing a Pd core as a bifun

关键词： hollow structure yolk-shell structure mesoporous zirconiumtitanium oxide self-assembly multiple catalyst

Prognostic Significance of the Number of Negative Lymph Nodes in Postoperative Locally Advanced Gastric Cancer Patients

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Clinical oncology and cancer researeh 2009年第6期6卷 418-421页

作者： Teng wang dong Hua Hao yu Department of Medical Oncology Wuxi No.4Hospital Wuxi 214062 Jiangsu ProvinceChina.

OBJECTIVE To evaluate the impact of the number of negative lymph nodes on disease free survival （DFS） in patients with locally advanced gastric cancer. METHODS A total of 485 patients who underwent surgery for locally advanced gastric cancer （pT3N0-2M0） and had a DFS at least 6 months were enrolled in this retrospective study. The medical records of the patients were reviewed in detail, and the characteristics of the patients and the findings of pathologic examination were analyzed in order to find the potential association with DFS. Subgroup analysis according to pathologic stage was performed. Multivariate analysis using the COX regression method was also conducted in order to identify the independent prognostic factors. The Kaplan-Meier method was used to plot DFS curves. The DFS rate was compared in each subgroup. RESULTS COX regression analysis showed that the DFS rate of gastric cancer patients with pathologic stage T3N0-2M0 was significantly associated with age, degree of tumor differentiation, tumor location as well as the number of negative lymph nodes. Among patients with stage T3NOM0 disease, who had 1-4 and 5 or more negative lymph nodes, the 2-year DFS rate was 8.3% and 55.6%, respectively. Meanwhile, the 3-year DFS rates of the same group of patients was 0% and 24.9%, respectively （P = 0.025）. In the T3NIM0 subgroup, the 2-year DFS rate of patients with 3 or fewer, 4-9, and 10 or more negative lymph nodes was 17.3%, 39.1%, 52.6%, respectively. The 3-year DFS rate in this group was 4.2%, 6.0%, 17.1%, respectively （P 〈 0.001）. In the T3N2M0 subgroup, the 2-year DFS rate of patients with 7 or fewer and 8 or more negative lymph nodes was 11.5% and 35%, respectively. The 3-year DFS rate of the same group of patients with 8 or more negative lymph nodes was also 5%, respectively; P = 0.015）. significantly improved （0.8% vs. CONCLUSION For gastric cancer patients with pathologic stage T3N0-2M0, the number of negative lymph nodes is an independent prognostic fa

关键词： gastric cancer lymph node prognosis recurrence.

Experimental study of bioartificial liver with cultured human liver cells

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World Journal of Gastroenterology 1999年第2期5卷 47-49页

作者： wang Ying Jie, LI Meng dong, wang yu Ming, NIE Qing He and CHEN Guo Zheng

AIM To establish an extracorporeal bioartificial liver support system (EBLSS) using cultured human liver cells and to study its support effect for fulminant hepatic failure (FHF).METHODS The liver support experiment of EBLSS consisting of aggregates cultured human liver cells, hollow fiber bioreactor, and circulation unit was carried out in dizhepatic *** The viability of isolated hepatocytes and nonparenchymal liver cells reached 96%. These cells were successfully cultured as multicellular spheroids with synthetic technique. The typical morphological appearance was retained up to the end of the artificial liver experiment. Compared with the control dogs treated with EBLSS without liver cells, the survival time of artificial liver support dogs was significantly prolonged. The changes of blood pressure, heart rate and ECG were slow. Both serum ammonia and lactate levels were significantly lowered at the 3rd h and 5th h. In addition, a good viability of human liver cells was noted after 5 h *** EBLSS playing a metabolic role of cultured human hepatocytes, is capable of compensating the function of the liver, and could provide effective artificial liver support and therapy for patients with FHF.

关键词： artificial liver cell, cultured hepatocytes fulminant hepatic failure animal model liver support