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Entanglement of Non-symmetric Two Charge Qubits Induced by a Damped Cavity

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Communications in Theoretical Physics 2007年第4期47卷 643-646页

作者： li zhao-xin li Jun-Gang li Juan-Juan CUI Hui-Ping Department of Applied Physics School of Science Shandong University of Science and Technology Qingdao 266510 China Department of Physics School of Science Beijing Institute of Technology Beijing 100081 China

Two charge qubits being coupled to a damped cavity with different couplings are considered. The dynamical evolution of the entanglement between the two qubits is demonstrated analytically or numerically. It is found that with the cavity dissipation, the steady entanglement between the two qubits can be achieved. The two qubits being initially in the separable and most mixed state can be easily induced to a steady entangled state, and the relative difference of the couplings can be used to enhance the steady entanglement between the two charge qubits.

关键词： charge qubit entanglement dissipation

Recent Progress in Two-dimensional Nanomaterials Following Graphene for Improving Fire Safety of Polymer(Nano)composites

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Chinese Journal of Polymer Science 2021年第8期39卷 935-956,I0004页

作者： Wei Cai Bi-Bo Wang xin Wang Yu-Lu Zhu zhao-xin li Zhou-Mei Xu Lei Song Wei-zhao Hua Yuan Hua State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230000China Suzhou Advanced Research Institute University of Science and Technology of ChinaSuzhou 215000China

The high fire safety of polymer nanocomposites is being pursued by research institutions around the *** addition to intrinsic flame retardancy strategy,the additive-type flame retardants have attracted increasing attention due to low commercial cost and easy fabrication ***,traditional additive-type flame retardants usually need high addition amount to achieve a desirable effect which causes many side-effects on the overall performance of polymer materials,such as deteriorated mechanical property and *** present two-dimensional(2D)nanomaterials have also been applied to reduce the fire hazards of polymer(nano)composites with the coupling of barrier function and catalysis as well as carbonization *** though most research work mainly focus on graphene-based flame retardants,more emerging two-dimensional nanomaterials are taking away research attention,due to their complementary and unique properties,mainly including hexagonal boron nitride(h-BN),molybdenum disulfide(MoS2),metal organic frameworks(MOF),carbon nitride(CN),titanium carbide(MXene)and black phosphorene(BP).In this review,except for graphene,the flame retardant mechanism involving different layered nanomaterials are also ***,the functionalization method and flame retardancy effect of different layered nanomaterials are emphatically discussed for offering an effective reference to solve the fire hazards of polymer ***,this work objectively evaluates the practical significance of polymer/layered nanomaterials composites for industrial application.

关键词： Polymer(nano)composites Layered nanomaterials Fire safety Flame retardant mechanism

Improvement to Maize Growth Caused by Biochars Derived From Six Feedstocks Prepared at Three Different Temperatures

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Journal of Integrative Agriculture 2014年第3期13卷 533-540页

作者： LUO Yu JIAO Yu-jie zhao Xiao-rong li Gui-tong zhao li-xin MENG Hai-bo Institute of Energy and Environmental Protection Chinese Academy of Agricultural Engineering Key Laboratory of Energy Resource Utilization from Agriculture Residue Ministry of Agriculture/Chinese Academy of Agricultural Engineering College of Resources and Environmental Sciences China Agricultural University

Biochar is increasingly proposed as a soil amendment, with reports of benefits to soil physical, chemical and biological properties. In this study, different biochars were produced from 6 feedstocks, including straw and poultry manure, at 3 pyrolysis temperatures （200, 300 and 500℃） and then added separately to a calcareous soil. Their effects on soil properties and maize growth were evaluated in a pot experiment. The biochars derived from crop straw had much higher C but smaller N concentrations than those derived from poultry manure. Carbon concentrations, pH and EC values increased with increasing pyrolysis temperature. Biochar addition resulted in increases in mean maize dry matter of 12.73% and NPK concentrations of 30, 33 and 283%, respectively. Mean soil pH values were increased by 0.45 units. The biochar-amended soils had 44, 55, 254 and 537% more organic C, total N, Olsen-P and available K, respectively, than the control on average. Both feedstocks and pyrolysis temperature determined the characteristics of the biochar. Biochars with high mineral concentrations may act as mineral nutrient supplements.

关键词： biochar feedstock temperature maize soil

Optimization of listening time of S-MAC for wireless sensor networks

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The Journal of China Universities of Posts and Telecommunications 2009年第5期16卷 41-45,70页

作者： li Cheng WANG Kui-ru ZHANG Jin-long zhao De-xin li Wang Key Laboratory of Optical Communications and lightwave Technologies Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

In wireless sensor networks, sensor nodes are usually battery-operated computing and sensing devices, hence operations are limited by the initially equipped batteries, which are hard to be recharged or replaced. ：In this sense, saving energy consumption becomes significant. As most energy waste is from the always-on wireless interface, S-MAC is suggested to reduce energy consumption by introducing periodic listen/sleep scheme. However, when designing the listening time, S-MAC fails to consider the traffic distribution factor. In this article, an optimization for this scheme is proposed based on the distribution model. Evaluations show that the optimized S-MAC achieves considerable improvement in energy and latency.

关键词： wireless sensor networks S-MAC traffic distribution energy waste latency

Emergency Department Experience in the Multi-dimensional Prevention and Control of Pneumonic Plague in Beijing

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Biomedical and Environmental Sciences 2020年第12期33卷 948-952页

作者： YANG Jun MEI Xue zhao li xin liU Ying Qing WANG Shuo GUO Shu Bin HE xin Hua Department of Emergency Beijing Chao-Yang HospitalAffiliated to Capital Medical UniversityBeijing 100020China

All close contacts of two confirmed patients with pneumonic plague who came to Beijing for medical treatment from Xilingol League,Inner Mongolia,had been released from isolation after medical observation according to protocol by 8:00 am on November 21,*** news was posted on the Beijing municipal government website,Windows of the Capital[1].

关键词： Windows fir municipal

TOPK Inhibition Enhances the Sensitivity of Colorectal Cancer Cells to Radiotherapy by Reducing the DNA Damage Response

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Current Medical Science 2024年第3期44卷 545-553页

作者： Shi-gui PANG xin ZHANG zhao-xin li li-fei HE Feng CHEN Ming-long liU Ying-ze HUANG Jian-mei MO Kong-lan LUO Juan-juan XIAO Feng ZHU Department of Oncology The Affiliated Hospital of Guilin Medical UniversityGuilin541001China Cancer Research Institute The Affiliated Hospital of Guilin Medical UniversityGuilin541001China Translational Medical Center Huaihe HospitalHenan UniversityKaifeng475000China Guangxi Key Laboratory of Molecular Medicine in liver Injury and Repair The Affiliated Hospital of Guilin Medical UniversityGuilin541001China

Objective Abnormal expression of T-lymphokine-activated killer cell-originated protein kinase(TOPK)was reported to be closely related to the resistance of prostate cancer to radiotherapy and to targeted drug resistance in lung ***,the role of TOPK inhibition in enhancing radiosensitivity of colorectal cancer(CRC)cells is *** study aimed to evaluate the radiosensitization of TOPK knockdown in CRC *** The expression of TOPK was detected in CRC tissues by immunohistochemistry,and the effect of TOPK knockdown was detected in CRC cells by Western ***-8 and clonogenic assays were used to detect the growth and clonogenic ability of CRC cells after TOPK knockdown combined with radiotherapy in CRC ***,proteomic analysis showed that the phosphorylation of TOPK downstream proteins changed after *** damage was detected by the comet *** in the DNA damage response signaling pathway were analyzed by Western blotting,and apoptosis was detected by flow *** The expression of TOPK was significantly greater in CRC tissues at grades 2–4 than in those at grade *** irradiation,CRC cells with genetically silenced TOPK had shorter comet tails and reduced expression levels of DNA damage response-associated proteins,including phospho-cyclin-dependent kinase 1(p-CDK1),phospho-ataxia telangiectasia-mutated(p-ATM),poly ADP-ribose polymerase(PARP),and meiotic recombination 11 homolog 1(MRE11).Conclusions TOPK was overexpressed in patients with moderately to poorly differentiated ***,TOPK knockdown significantly enhanced the radiosensitivity of CRC cells by reducing the DNA damage response.

关键词： T-lymphokine-activated killer cell-originated protein kinase colorectal cancer DNA damage response radiosensitivity

Defect Engineering:Can it Mitigate Strong Coulomb Effect of Mg^(2+)in Cathode Materials for Rechargeable Magnesium Batteries?

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Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing Fan Ruimin li xin Zhang Wanyu zhao Zhenghui Pan Xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

Interpretation of Robert Frost＇s ＂Mending Wall＂

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Sino-US English Teaching 2007年第6期4卷 71-74页

作者： zhao xin-li School of Foreign Languages Langfang Teachers College Langfang 065000 China

Robert Frost is skillful at adopting symbolism and images in his poems. ＂Mending Wall＂, one of Frost＇s well-known poems, had been analyzed in different approaches, such as psychoanalytical approach, social approach and structural approaches, etc. By exploring the symbol and images applied in ＂Mending Wall＂, it draws the conclusion that ＂the wall＂, symbolizing convention, is set as a barrier in human communication.

关键词： symbol image "Mending Wall" convention

Two cases of exudative retina detachment and uveitis following H1N1 influenza vaccination

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Chinese Medical Journal 2011年第22期124卷 3838-3840页

作者： TAO Yong CHANG li-bing zhao Min li Xiao-xin Department of Ophthalmology Peking University People＇s Hospital Key Laboratory of Vision Loss and Restoration Ministry of Education Beijing 100044 China

Uveitis was a rare adverse event of vaccination. We met two cases of acute uveitis with exudative retinal detachment following vaccination of H1 N1 influenza. Case 1 was a 10-year-old boy who was admitted for bilateral blurred vision at 10 days after vaccination of H1N1 influenza. Vitreous opacity was obvious in both eyes. Broad exudative retinal detachment was observed in the right eye. Case 2 was a 47-year-old female who suffered from an acute high fever at 2 days after the vaccination of H1 N1 influenza. Later, she encountered bilateral headache and decreasing vision. In both eyes, mutton fat keratic precipitates, positive Tyndall phenomenon, congestion of optic disc and exudative retinal detachment were observed.

关键词： retinal detachment uveitis vaccine H1N1 influenza