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Research on the Intervention Effect of Vibroacoustic Therapy in the Treatment of Patients with Depression
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作者 Xiaodan Wang Zheng Xie Guiping Du 《International Journal of Mental Health Promotion》 2024年第2期149-160,共12页
Research purpose:This study implemented somatosensory music therapy on patients with depressive disorders,and explored the effects of somatosensory music therapy on the degree of depression,positive and negative emoti... Research purpose:This study implemented somatosensory music therapy on patients with depressive disorders,and explored the effects of somatosensory music therapy on the degree of depression,positive and negative emotions,intuitive stress and autonomic nervous function of patients.Research method:We collected 66 patients diagnosed with depression from the Department of Psychological Medicine of Henan Provincial People’s Hospital,and divided them into a control group and an intervention group according to the random number table,with 33 people in each group.The control group received routine psychiatric treatment and nursing.On the basis of the control group,the intervention group received somatosensory music therapy 3 times a week,30 min each time,for 4 consecutive weeks.The Hamilton Depression Scale,Positive and Negative Emotion Scale,Perceived Stress Scale,and Heart Rate Variability Index were collected and analyzed at baseline(T0),2 weeks after treatment(T1)and 4 weeks after treatment(T2).Research results:After 4 weeks of treatment,the HAMD scores of the two groups decreased to varying degrees,and the difference between the groups was statistically significant(p<0.05).After 4 weeks of treatment,the scores of positive emotions in both groups increased to varying degrees,and the scores of negative emotions increased to varying degrees.The scores decreased to varying degrees,and there were statistically significant differences between the positive and negative emotion groups(p<0.05).After 4 weeks of treatment,the CPSS scores of the two groups decreased to varying degrees,and the difference between the two groups was statistically significant(p<0.05).Analyzing the main effect of intervention factors alone,after 4 weeks of treatment,SDNN and RMSSD indexes all increased to varying degrees,and the degree of increase in the intervention group was greater than that in the control group,and the difference between the groups was statistically significant(p<0.05).Research conclusion:assisting somatosensory music therapy for patients with depressive disorders can improve depressive symptoms,increase positive emotions,reduce negative emotions,and reduce perceived stress.These are beneficial to restore the balance of autonomic nervous system,and are effective for the treatment of depression. 展开更多
关键词 Somatosensory music depressive disorder intervention effect perceived stress heart rate variability
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Five-force Analysis and Market Strategies of Budget Hotels in Small and Medium-sized Cities --ake Xuchang Jinjiang INN for Example
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作者 Li PAN 《International English Education Research》 2014年第9期81-83,共3页
关键词 市场策略 酒店业 城市发展 经济型 许昌 中型 力分析 经济发达地区
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The Practice Strategy of Construction of Ecological Garden City in China: A Case Study of Action of “Xuchang Being Full of Green” in Xuchang City
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作者 LI Manyuan YANG Kailiang +2 位作者 ZHAI Xiaohui LI Yanke YANG Tao 《Journal of Landscape Research》 2020年第1期80-84,共5页
Starting from the purpose and current situation of the implementation of action of "Xuchang being full of green",this study analyzed the problems existing in the implementation of action of "Xuchang bei... Starting from the purpose and current situation of the implementation of action of "Xuchang being full of green",this study analyzed the problems existing in the implementation of action of "Xuchang being full of green" and discussed the implementation plan of action of "Xuchang being full of green" from two aspects of macro strategy and node promotion strategy,hoping to promote the construction of ecological garden cities in Xuchang and other cities in China. 展开更多
关键词 Urban ecosystem Ecological garden city Urban green network Green space system Nodepromotion
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Multi-source Data-driven Identification of Urban Functional Areas:A Case of Shenyang,China 被引量:3
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作者 XUE Bing XIAO Xiao +2 位作者 LI Jingzhong ZHAO Bingyu FU Bo 《Chinese Geographical Science》 SCIE CSCD 2023年第1期21-35,共15页
Urban functional area(UFA)is a core scientific issue affecting urban sustainability.The current knowledge gap is mainly reflected in the lack of multi-scale quantitative interpretation methods from the perspective of ... Urban functional area(UFA)is a core scientific issue affecting urban sustainability.The current knowledge gap is mainly reflected in the lack of multi-scale quantitative interpretation methods from the perspective of human-land interaction.In this paper,based on multi-source big data include 250 m×250 m resolution cell phone data,1.81×105 Points of Interest(POI)data and administrative boundary data,we built a UFA identification method and demonstrated empirically in Shenyang City,China.We argue that the method we built can effectively identify multi-scale multi-type UFAs based on human activity and further reveal the spatial correlation between urban facilities and human activity.The empirical study suggests that the employment functional zones in Shenyang City are more concentrated in central cities than other single functional zones.There are more mix functional areas in the central city areas,while the planned industrial new cities need to develop comprehensive functions in Shenyang.UFAs have scale effects and human-land interaction patterns.We suggest that city decision makers should apply multi-sources big data to measure urban functional service in a more refined manner from a supply-demand perspective. 展开更多
关键词 human-land relationship multi-source big data urban functional area identification method Shenyang City
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Fast population transfer with a superconducting qutrit via non-Hermitian shortcut to adiabaticity 被引量:1
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作者 董新平 冯志波 +2 位作者 路晓静 李明 赵正印 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第3期228-233,共6页
Non-Hermitian dissipation dynamics,capable of turning the conventionally detrimental decoherence effects to useful resources for state engineering,is highly attractive to quantum information processing.In this work,an... Non-Hermitian dissipation dynamics,capable of turning the conventionally detrimental decoherence effects to useful resources for state engineering,is highly attractive to quantum information processing.In this work,an effective scheme is developed for implementing fast population transfer with a superconducting qutrit via the non-Hermitian shortcut to adiabaticity(STA).We first deal with aΛ-configuration interaction between the qutrit and microwave drivings,in which the dephasing-assisted qubit state inversion requiring an overlarge dephasing rate is constructed non-adiabatically.After introducing a feasible ancillary driving that directly acts upon the qubit states,the target state transfer can be well realized but with an accessible qubit dephasing rate.Moreover,a high fidelity could be numerically obtained in the considered system.The strategy could provide a new route towards the non-Hermitian shortcut operations on superconducting quantum circuits. 展开更多
关键词 population transfer superconducting qutrit non-Hermitian shortcut to adiabaticity
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An Electrochromic Nickel Phosphate Film for Large-Area Smart Window with Ultra-Large Optical Modulation 被引量:2
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作者 Pengyang Lei Jinhui Wang +6 位作者 Yi Gao Chengyu Hu Siyu Zhang Xingrui Tong Zhuanpei Wang Yuanhao Gao Guofa Cai 《Nano-Micro Letters》 SCIE EI CAS CSCD 2023年第3期35-47,共13页
Exploring materials with high electrochemical activity is of keen interest for electrochemistry-controlled optical and energy storage devices.However,it remains a great challenge for transition metal oxides to meet th... Exploring materials with high electrochemical activity is of keen interest for electrochemistry-controlled optical and energy storage devices.However,it remains a great challenge for transition metal oxides to meet this feature due to their low electron conductivity and insufficient reaction sites.Here,we propose a type of transition metal phosphate(NiHPO_(4)·3H_(2)O,NHP)by a facile and scalable electrodeposition method,which can achieve the capability of efficient ion accommodation and injection/extraction for electrochromic energy storage applications.Specifically,the NHP film with an ultra-high transmittance(approach to 100%)achieves a large optical modulation(90.8%at 500 nm),high coloration efficiency(75.4 cm^(2)C^(-1)at 500 nm),and a high specific capacity of 47.8 mAh g^(-1)at 0.4 A g^(-1).Furthermore,the transformation mechanism of NHP upon electrochemical reaction is systematically elucidated using in situ and ex situ techniques.Ultimately,a large-area electrochromic smart window with 100 cm^(2)is constructed based on the NHP electrode,displaying superior electrochromic energy storage performance in regulating natural light and storing electrical charges.Our findings may open up new strategies for developing advanced electrochromic energy storage materials and smart windows. 展开更多
关键词 ELECTROCHROMISM Transition metal phosphates Optical modulation Smart window Energy storage
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Lightweight diamond/Cu interface tuning for outstanding heat conduction 被引量:1
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作者 Wenjie Dou Congxu Zhu +6 位作者 Xiwang Wu Xun Yang Wenjun Fa Yange Zhang Junfeng Tong Guangshan Zhu Zhi Zheng 《Carbon Energy》 SCIE EI CAS CSCD 2023年第12期229-240,共12页
With rapid developments in the field of very large-scale integrated circuits,heat dissipation has emerged as a significant factor that restricts the high-density integration of chips.Due to their high thermal conducti... With rapid developments in the field of very large-scale integrated circuits,heat dissipation has emerged as a significant factor that restricts the high-density integration of chips.Due to their high thermal conductivity and low thermal expansion coefficient,diamond/Cu composites have attracted considerable attention as a promising thermal management material.In this study,a surface tungsten carbide gradient layer coating of diamond particles has been realized using comprehensive magnetron sputtering technology and a heat treatment process.Diamond/Cu composites were prepared using high-temperature and high-pressure technology.The results show that,by adjusting the heat treatment process,tungsten carbide and di-tungsten carbide are generated by an in situ reaction at the tungsten–diamond interface,and W–WC–W_(2)C gradient layer-coated diamond particles were obtained.The diamond/Cu composites were sintered by high-temperature and high-pressure technology,and the density of surface-modified diamond/Cu composites was less than 4 g cm^(-3).The W–WC–W_(2)C@diamond/Cu composites have a thermal diffusivity as high as 331 mm^(2)s^(-1),and their thermal expansion coefficient is as low as 1.76×10^(-6)K^(-1).The interface coherent structure of the gradient layer-coated diamond/copper composite can effectively improve the interface heat transport efficiency. 展开更多
关键词 coherent interface diamond composite heat conduction surface modification
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Two-dimensional CrP_(2) with high specific capacity and fast charge rate for lithium-ion battery
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作者 王晓允 荆涛 梁冬梅 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第6期489-494,共6页
The electrode material is regarded as one of the key factors that determine the performance of lithium-ion batteries(LIBs).However,it is still a challenge to search for an anode material with large capacity,low diffus... The electrode material is regarded as one of the key factors that determine the performance of lithium-ion batteries(LIBs).However,it is still a challenge to search for an anode material with large capacity,low diffusion barrier,and good stability.In the present work,two new CrP_(2) monolayers(Pmmn-CrP_(2) and Pmma-CrP_(2)) are predicted by means of first principles swarm structure search.Our study shows that both the two CrP_(2) monolayers have high dynamical and thermal stability,as well as excellent electron conductivity.Additionally,Pmmn-CrP_(2) exhibits a remarkably high storage capacity of 705 mA·h·g^(-1) for Li,meanwhile the diffusion energy barrier of Li on the surface of this monolayer is 0.21 eV,ensuring it as a high-performance anode material for LIBs.We hope that our study will inspire researchers to search for new-type two-dimensional(2D) transition metal phosphides for the electrode materials of LIB s. 展开更多
关键词 lithium-ion battery electronic structure first principles
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Multi-protective effects of wheat embryo globulin on D-gal-induced aging mice
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作者 Aimei Liao Xing Lyu +6 位作者 Jiarui Ma Yinchen Hou Ming Hui Na Liu Yi Zhao Yixiang Cui Jihong Huang 《Food Science and Human Wellness》 SCIE CSCD 2023年第4期1300-1308,共9页
Wheat embryo globulin(WEG)has been proven to possess multiple biological activities,including antioxidative properties,immunomodulatory,and so on.Aged mouse model were established by subcutaneous injection of D-galact... Wheat embryo globulin(WEG)has been proven to possess multiple biological activities,including antioxidative properties,immunomodulatory,and so on.Aged mouse model were established by subcutaneous injection of D-galactose(D-gal),and the effects of WEG on learning,memory,and antioxidant capacity in aging mice were explored through behavioural tests and antioxidant enzyme activities determination.Compared with the Model group,WEG improved the percentage of the platform quadrant,increased the number of crossing platforms,and enhanced the identification indexs.WEG also increased total antioxidant capacity(T-AOC),superoxide dismutase(SOD),and glutathione peroxidase(GSH-Px)activities in the liver and brains of aging mice,and reduced malondialdehyde(MDA)content.Pathological observations indicated that WEG protected against damage to brain in D-gal-induced aging mice.These results effectively revealed that WEG not only improved the abilities of learning and memory,and the cognitive impairment,but also delayed the aging process of the D-gal-induced mice. 展开更多
关键词 Wheat embryo globulin Antioxidant activity D-GALACTOSE Superoxide dismutase Glutathione peroxidase
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Design and Experimental Testing of an Electric Field-Driven Droplet Injection Device
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作者 Fulai Cao Yanpu Chao +2 位作者 Hao Yi Shuai Lu Chengshui Guo 《Fluid Dynamics & Materials Processing》 EI 2023年第11期2891-2905,共15页
The properties of droplets produced by existing on-demand injection systems are typically determined by the nozzle diameter,i.e.,only droplets with size larger than this diameter can be obtained.To solve this problem,... The properties of droplets produced by existing on-demand injection systems are typically determined by the nozzle diameter,i.e.,only droplets with size larger than this diameter can be obtained.To solve this problem,a system for electricfield-driven droplet injection and deposition was developed,and the related performances were compared with those of a standard pneumatic system.The results show that the diameter of droplets gen-erated accordingly can be significantly smaller than the nozzle diameter.In particular,the effects of frequency and duty ratio on the number of droplets were studied by assuming microcrystalline wax as work material.A deposi-tion matrix was obtained by using a nozzle with a diameter of 200μm.The average diameter of the matrix was 80.17μm with a standard deviation of 2.65μm and the average spacing was 301.25μm with a standard deviation of 6.80μm.Four deposition states after droplet injection were considered and verified under different velocities of F60,F10,F3,and F0.We also provide an explanation for the existence of a series of inclined columns showing up during the deposition processs. 展开更多
关键词 Electricfield-driven on-demand injection taylor cone droplet diameter deposition state
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One‑Step Gas-Solid‑Phase Diffusion‑Induced Elemental Reaction for Bandgap‑Tunable Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI Thin Film Solar Cells
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作者 Erchuang Fan Manying Liu +9 位作者 Kangni Yang Siyu Jiang Bingxin Li Dandan Zhao Yanru Guo Yange Zhang Peng Zhang Chuantian Zuo Liming Ding Zhi Zheng 《Nano-Micro Letters》 SCIE EI CAS CSCD 2023年第4期261-271,共11页
Lead-free inorganic copper-silver-bismuth-halide materials have attracted more and more attention due to their environmental friendliness,high element abundance,and low cost.Here,we developed a strategy of one-step ga... Lead-free inorganic copper-silver-bismuth-halide materials have attracted more and more attention due to their environmental friendliness,high element abundance,and low cost.Here,we developed a strategy of one-step gas-solid-phase diffusioninduced reaction to fabricate a series of bandgap-tunable Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI bilayer films due to the atomic diffusion effect for the first time.By designing and regulating the sputtered Cu/Ag/Bi metal film thickness,the bandgap of Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI could be reduced from 2.06 to 1.78 eV.Solar cells with the structure of FTO/TiO_(2)/Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI/carbon were constructed,yielding a champion power conversion efficiency of 2.76%,which is the highest reported for this class of materials owing to the bandgap reduction and the peculiar bilayer structure.The current work provides a practical path for developing the next generation of efficient,stable,and environmentally friendly photovoltaic materials. 展开更多
关键词 Cu_(a)Agm_(1)Bim_(2)I_(n)/CuI Elemental reaction Bandgap tuning Solar cells Gas-solid phase
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The Stochastic Asymptotic Stability Analysis in Two Species Lotka-Volterra Model
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作者 Yuqin Li Yuehua He 《Applied Mathematics》 2023年第7期450-459,共10页
The asymptotic stability of two species stochastic Lotka-Volterra model is explored in this paper. Firstly, the Lotka-Volterra model with random parameter is built and reduced into the equivalent deterministic system ... The asymptotic stability of two species stochastic Lotka-Volterra model is explored in this paper. Firstly, the Lotka-Volterra model with random parameter is built and reduced into the equivalent deterministic system by orthogonal polynomial approximation. Then, the linear stability theory and Routh-Hurwitz criterion for nonlinear deterministic systems are applied to the equivalent one. At last, at the aid of Lyapunov second method, we obtain that as the random intensity or statistical parameter of random variable is changed, the stability about stochastic Lotka-Volterra model is different from the deterministic system. 展开更多
关键词 Asymptotic Stability Stochastic Lotka-Volterra Model Lyapunov Method
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ASYMPTOTIC PROPERTIES OF ESTIMATORS IN PARTIALLY LINEAR SINGLE-INDEX MODEL FOR LONGITUDINAL DATA 被引量:3
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作者 田萍 杨林 薛留根 《Acta Mathematica Scientia》 SCIE CSCD 2010年第3期677-687,共11页
In this article, a partially linear single-index model /or longitudinal data is investigated. The generalized penalized spline least squares estimates of the unknown parameters are suggested. All parameters can be est... In this article, a partially linear single-index model /or longitudinal data is investigated. The generalized penalized spline least squares estimates of the unknown parameters are suggested. All parameters can be estimated simultaneously by the proposed method while the feature of longitudinal data is considered. The existence, strong consistency and asymptotic normality of the estimators are proved under suitable conditions. A simulation study is conducted to investigate the finite sample performance of the proposed method. Our approach can also be used to study the pure single-index model for longitudinal data. 展开更多
关键词 Longitudinal data partially linear single-index model penalized spline strong consistency asymptotic normality
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Analytic solutions to a finite width strip with a single edge crack of two-dimensional quasicrystals 被引量:3
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作者 李梧 《Chinese Physics B》 SCIE EI CAS CSCD 2011年第11期404-408,共5页
In this paper, we investigate the well-known problem of a finite width strip with a single edge crack, which is useful in basic engineering and material science. By extending the configuration to a two-dimensional dec... In this paper, we investigate the well-known problem of a finite width strip with a single edge crack, which is useful in basic engineering and material science. By extending the configuration to a two-dimensional decagonal quasicrystal, we obtain the analytic solutions of modesⅠand Ⅱ using the transcendental function conformal mapping technique. Our calculation results provide an accurate estimate of the stress intensity factors K_Ⅰ and K_Ⅱ, which can be expressed in a quite simple form and are essential in the fracture theory of quasicrystals. Meanwhile, we suggest a generalized cohesive force model for the configuration to a two-dimensional decagonal quasicrystal. The results may provide theoretical guidance for the fracture theory of two-dimensional decagonal quasicrystals. 展开更多
关键词 transcendental function conformal mapping QUASICRYSTAL stress intensity factor
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Research on the carbon isotopic composition of organic matter from Lake Chenghai and Caohai Lake sediments 被引量:7
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作者 ZHU Zhengjie CHEN Jing'an +3 位作者 ZENG Yan LI Hang YAN Hui REN Shicong 《Chinese Journal Of Geochemistry》 EI CAS 2011年第1期107-113,共7页
The carbon isotopic composition of organic matter from lake sediments has been extensively used to infer variations in productivity. In this paper, based on the study of the contents and δ13C values of organic matter... The carbon isotopic composition of organic matter from lake sediments has been extensively used to infer variations in productivity. In this paper, based on the study of the contents and δ13C values of organic matter in different types of lakes, it has been found that δ13C values of organic matter have different responses to lake productivity in different lakes. As to the lakes dominated by aqutic macrophytes such as Lake Caohai, organic matter becomes enriched in 13C with increasing productivity. As to the lakes dominated by aquatic algae such as Lake Chenghai, δ13C values of organic matter decrease with increasing productivity, and the degradation of aquatic algae is the main factor leading to the decrease of δ13C values of organic matter with increasing productivity. Therefore, we should be cautious to use the carbon isotopic composition of organic matter to deduce lake productivity. 展开更多
关键词 碳同位素组成 有机物质 澄海 海底泥 湖泊沉积物 水生植物 生产力 有机质
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Thermoelastic analysis of multiple defects with the extended finite element method 被引量:2
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作者 Honggang Jia Yufeng Nie 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2016年第6期1123-1137,共15页
In this paper, the extended finite element method (XFEM) is adopted to analyze the interaction between a single macroscopic inclusion and a single macroscopic crack as well as that between multiple macroscopic or micr... In this paper, the extended finite element method (XFEM) is adopted to analyze the interaction between a single macroscopic inclusion and a single macroscopic crack as well as that between multiple macroscopic or microscopic defects under thermal/mechanical load. The effects of different shapes of multiple inclusions on the material thermomechanical response are investigated, and the level set method is coupled with XFEM to analyze the interaction of multiple defects. Further, the discretized extended finite element approximations in relation to thermoelastic problems of multiple defects under displacement or temperature field are given. Also, the interfaces of cracks or materials are represented by level set functions, which allow the mesh assignment not to conform to crack or material interfaces. Moreover, stress intensity factors of cracks are obtained by the interaction integral method or the M-integral method, and the stress/strain/stiffness fields are simulated in the case of multiple cracks or multiple inclusions. Finally, some numerical examples are provided to demonstrate the accuracy of our proposed method. 展开更多
关键词 Multiple defects Stress intensity factors extended finite element method (XFEM) THERMOELASTIC
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Study on Microwave Sterilization of Solid Culture Medium 被引量:3
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作者 GE Xin-feng LIU Cun-xiang 《Agricultural Science & Technology》 CAS 2010年第6期186-188,共3页
In this paper,microwave sterilization craft of solid culture medium in fungus growth is studied.The results show that microwave not only can be used to sterilize the micro-organisms which is useless for fungus growth ... In this paper,microwave sterilization craft of solid culture medium in fungus growth is studied.The results show that microwave not only can be used to sterilize the micro-organisms which is useless for fungus growth in the solid culture medium,but also has positive effect on fungus growth;and the sterilization process is featured with shorter time and higher efficiency compared with the traditional method. 展开更多
关键词 摘要 编辑部 编辑工作 读者
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Surface defect ordered Cu_(2)ZnSn(S,Se)_(4) solar cells with efficiency over 12% via manipulating local substitution 被引量:4
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作者 Changcheng Cui Dongxing Kou +5 位作者 Wenhui Zhou Zhengji Zhou Shengjie Yuan Yafang Qi Zhi Zheng Sixin Wu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第4期555-562,共8页
The environmentally friendly Cu_(2)ZnSn(S,Se)_(4)(CZTSSe) compounds are promising direct bandgap materials for application in thin film solar cells, but the spontaneous surface defects disordering would lead to large ... The environmentally friendly Cu_(2)ZnSn(S,Se)_(4)(CZTSSe) compounds are promising direct bandgap materials for application in thin film solar cells, but the spontaneous surface defects disordering would lead to large open-circuit voltage deficit(V_(oc,deficit)) and significantly limit kesterite photovoltaics performance,primarily arising from the generated more recombination centers and insufficient p to n conversion at p-n junction. Herein, we establish a surface defects ordering structure in CZTSSe system via local substitution of Cu by Ag to suppress disordered Cu_(Zn) defects and generate benign n-type Zn_(Ag) donors. Taking advantage of the decreased annealing temperature of Ag F post deposition treatment(PDT), the high concentration of Ag incorporated into surface absorber facilitates the formation of surface ordered defect environment similar to that of efficient CIGS PV. The manipulation of highly doped surface structure could effectively reduce recombination centers, increase depletion region width and enlarge the band bending near p-n junction. As a result, the Ag F-PDT device finally achieves maximum efficiency of 12.34% with enhanced V_(oc) of 0.496 V. These results offer a new solution route in surface defects and energy-level engineering, and open the way to build up high quality p-n junction for future development of kesterite technology. 展开更多
关键词 KESTERITE Cu_(2)ZnSn(S Se)_(4)thin film solar cells Interface recombination Defect passivation Ag substitution
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Substitute of Expensive Pt with Improved Electrocatalytic Performance and Higher Resistance to CO Poisoning for Methanol Oxidation: the Case of Synergistic Pt-Co_3O_4 Nanocomposite 被引量:3
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作者 Hongxiao Zhao Zhi Zheng +4 位作者 Jing Li Huimin Jia Ka-wai Wong Yidong Zhang Woon Ming Lau 《Nano-Micro Letters》 SCIE EI CAS 2013年第4期296-302,共7页
In this paper, Pt-Co_3O_4 nanocomposite was synthesized by a sol gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using ... In this paper, Pt-Co_3O_4 nanocomposite was synthesized by a sol gel process combined with electrodeposition method. Its electrocatalytic activity towards methanol oxidation was investigated at room temperature using cyclic voltammetry(CV), electrochemical impedance spectroscopy(EIS) and current density time curve. It is found that the resultant Pt-Co_3O_4 catalysts with minute amount of Pt exhibite attractive electrocatalytic activity for methanol oxidation reaction(MOR) but with a high resistance CO poisoning due to the synergistic effects from Pt and Co_3O_4. Together with the low manufacturing cost of Co_3O_4, the reported nanostructured Pt-Co_3O_4 catalyst is expected to be a promising electrode material for direct methanol fuel cells(DMFC). 展开更多
关键词 Pt-Co3O4 nanocomposite MOR Electrocatalytic activity
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Robust Quantum Computation with Superconducting Charge Qubits via Coherent Pulses 被引量:1
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作者 冯志波 闫润瑛 《Chinese Physics Letters》 SCIE CAS CSCD 2010年第1期9-12,共4页
在超导的费用 qubits 上完成柔韧的门操作,我们理论上建议一个可行计划经由协调脉搏认识到几何量计算。仅仅由断热地调节脉搏用于门电容罐头的微波,果浆阶段与系统联系了被获得,从哪个我们构造几何门的一个通用集合。把几何途径与协... 在超导的费用 qubits 上完成柔韧的门操作,我们理论上建议一个可行计划经由协调脉搏认识到几何量计算。仅仅由断热地调节脉搏用于门电容罐头的微波,果浆阶段与系统联系了被获得,从哪个我们构造几何门的一个通用集合。把几何途径与协调脉搏技术相结合,针对与噪音错误作斗争的柔韧的量操作可以试验性地被实现。[从作者抽象] 展开更多
关键词 相干脉冲 量子计算 量子位 超导 BERRY相位 电荷 鲁棒 几何方法
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