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Chinese Physics B 2020年第10期29卷 227-232页

作者： Yu-qin yao Ji Li Department of Applied Mathematics China Agricultural UniversityBeijing 102206China Department of Physics Taiyuan Normal UniversityTaiyuan 030031China

The three-component Gross–Pitaevskii equation with an angular momentum rotational term can be served as a model to study spinor Bose–Einstein condensates (BECs) with time–space modulated interactions. Vortex solutions of the spinor BECs with spatiotemporally modulated interactions are worked out by similarity transformation. Theoretical analysis and numerical simulation of vortex states are demonstrated. Stable vortex states are obtained by adjusting the frequency of the external potential and the spatiotemporally modulated interaction.

关键词： spinor Bose-Einstein condensates spatiotemporal modulation vortex solution dynamical stability

Rosochatius Deformed Soliton Hierarchy with Self-Consistent Sources

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Communications in Theoretical Physics 2009年第8期52卷 193-202页

作者： yao Yu-qin ZENG Yun-Bo Department of Applied Mathematics China Agricultural University Beijing 100083 China Department of Mathematics Tsinghua University Beijing 100084 China

Integrable Rosochatius deformations of finite-dimensional integrable systems are generalized to the solitonhierarchy with self-consistent *** integrable Rosochatius deformations of the Kaup-Newell hierarchy withself-consistent sources,of the TD hierarchy with self-consistent sources,and of the Jaulent Miodek hierarchy with self-consistentsources,together with their Lax representations are presented.

关键词： Rosochatius deformation soliton hierarchy with self-consistent sources higher-order constrained flows Lax representation

A New Loop Algebra and Its Corresponding Multi-component Integrable Hierarchy

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Communications in Theoretical Physics 2006年第3期45卷 385-388页

作者： yao Yu-qin CHEN Deng-Yuan Department of Mathematics Shanghai University Shanghai 200444 China

A type of new loop algebra GM is constructed by making use of the concept of cycled numbers. As its application, an isospectral problem is designed and a new multi-component integrable hierarchy with multi-potential f... 详细信息

关键词： cycled numbers loop algebra multi-component integrable hierarchy

A multi-objective reinforcement learning algorithm for deadline constrained scientific workflow scheduling in clouds

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Frontiers of Computer Science 2021年第5期15卷 25-36页

作者： yao qin Hua WANG Shanwen YI Xiaole LI Linbo ZHAI School of Computer Science and Technology Shandong UniversityJinan 250101China Shanghai Police College Shanghai 200137China School of Software Shandong UniversityJinan 250101China School of Information Science and Engineering Linyi UniversityLinyi 276005China School of Information Science and Engineering Shandong Normal UniversityJinan 250014China

Recently,a growing number of scientific applications have been migrated into the *** deal with the problems brought by clouds,more and more researchers start to consider multiple optimization goals in workflow ***,the previous works ignore some details,which are challenging but *** existing multi-objective work-flow scheduling algorithms overlook weight selection,which may result in the quality degradation of ***,we find that the famous partial critical path(PCP)strategy,which has been widely used to meet the deadline constraint,can not accurately reflect the situation of each time ***-flow scheduling is an NP-hard problem,so self-optimizing algorithms are more suitable to solve *** this paper,the aim is to solve a workflow scheduling problem with a deadline *** design a deadline constrained scientific workflow scheduling algorithm based on multi-objective reinforcement learning(RL)called *** uses the Chebyshev scalarization function to scalarize its *** method is good at choosing weights for *** propose an improved version of the PCP strategy called *** sub-deadlines in MPCP regularly update during the scheduling phase,so they can accurately reflect the situation of each time *** optimization objectives in this paper include minimizing the execution cost and energy consumption within a given ***,we use four scientific workflows to compare DCMORL and several representa-tive scheduling *** results indicate that DCMORL outperforms the above *** far as we know,it is the first time to apply RL to a deadline constrained workflow scheduling problem.

关键词： workflow scheduling energy saving multiobjective reinforcement learning deadline constrained cloud computing

Characteristics of the main polluting trace elements in the water environment of mining subsidence pools

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Journal of China University of Mining and Technology 2008年第3期18卷 362-367页

作者： yao En-qin GUI He-rong Department of Resources and Engineering Anhui University of Science and TechnologyHuainan Anhui 232001 China Suzhou College Suzhou Anhui 234000 China

Mining subsidence pools are water bodies formed by soil subsidence near mines. We studied the impact the surrounding coal production activities and power plants have on these waters by measuring the concentrations of harmful trace elements in these waters. The concentration of the four elements F, Hg, Se and As increased by 0.92%, 0.78%, 0.70% and 0.81%, respectively, in the Datong mining subsidence pool from November 2004 to November 2006. The four elements increased by 1.58%, 1.23%, 1.08% and 0.92%, respectively, in the Xie’er mining subsidence pool and 1.16%, 1.06%, 1.02% and 1.01%, respectively, in the Pansan mining subsidence pool over the same time period. The absolute levels of F, Hg, Se and As in the pool are related to the background levels of the elements. A close relationship between nearby coal mines and power plants and increasing levels of the measured elements is noted.

关键词： mining subsidence pool trace elements coal mine water environment

ANovel Non-Isolated Cubic DC-DC Converter with High Voltage Gain for Renewable Energy Power Generation System

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Energy Engineering 2024年第1期121卷 221-241页

作者： qin yao Yida Zeng qingui Jia School of Electrical Engineering Southwest Jiaotong UniversityChengdu610036China

In recent years,switched inductor(SL)technology,switched capacitor(SC)technology,and switched inductor-capacitor(SL-SC)technology have been widely applied to optimize and improve DC-DC boost converters,which can effectively enhance voltage gain and reduce device *** address the issue of low output voltage in current renewable energy power generation systems,this study proposes a novel non-isolated cubic high-gain DC-DC converter based on the traditional quadratic DC-DC boost converter by incorporating a SC and a SL-SC ***,the proposed converter’s details are elaborated,including its topology structure,operating mode,voltage gain,device stress,and power ***,a comparative analysis is conducted on the voltage gain and device stress between the proposed converter and other high-gain ***,a closed-loop simulation system is constructed to obtain simulation waveforms of various devices and explore the dynamic ***,an experimental prototype is built,experimental waveforms are obtained,and the experimental dynamic performance and conversion efficiency are *** theoretical analysis’s correctness is verified through simulation and experimental *** proposed converter has advantages such as high voltage gain,low device stress,high conversion efficiency,simple control,and wide input voltage range,achieving a good balance between voltage gain,device stress,and power *** proposed converter is well-suited for renewable energy systems and holds theoretical significance and practical value in renewable energy *** provides an effective solution to the issue of low output voltage in renewable energy power generation systems.

关键词： Cubic DC-DC converter high voltage gain low device stress high efficiency renewable energy

Comparison of Antioxidant Activities in Black Soybean Preparations Fermented with Various Microorganisms

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Agricultural Sciences in China 2010年第7期9卷 1065-1071页

作者： qin yao JIN Xiao-nan Park Heui Dong Department of Food Science and Technology Kyungpook National University Daegu 702-701 Korea Applied Plant Stress Biology Lab/Divison of Biotechnology/College of Life Sciences and Biotechnology Korea University Seoul 136-713 Korea

Black soybeans [Glycine max（L.） Merrill] were fermented with various GRAS（generally recognized as safe） microorganisms,including Aspergillus sp.,Bacillus *** yeast（Issatchenkia orientalis） at 30°C for 3 *** antioxidant contents,including total phenolics and total flavonoids,and the antioxidant activities of 1,1-diphenyl-2-picrylhydrazine（DPPH）,ferric reducing antioxidant power（FRAP） and *** were analyzed in preparations of fermented black *** cultures proved to yield significant levels of antioxidants compared with non-fermented cultures（P 〈 0.05）.Fermented black soybean preparations possessed antioxidant activities could be attributed to the total phenolics and flavonoids present.

关键词： antioxidant activity black soybean microorganisms fermentation

Synthesis of sponge-like TiO_(2) with surface-phase junctions for enhanced visible-light photocatalytic performance

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Chinese Chemical Letters 2021年第5期32卷 1823-1826页

作者： Yue Jiang yao qin Tianyu Yu Sijie Lin College of Environmental Science and Engineering The Institute for Translational NanomedicineShanghai East HospitalTongji UniversityShanghai 200092China Key Laboratory of Yangtze River Water Environment Shanghai Institute of Pollution Control and Ecological SecurityTongji UniversityShanghai 200092China Institute for Regenerative Medicine The Institute for Translational NanomedicineShanghai East HospitalTongji University School of MedicineShanghai 200123China

Maximizing adsorption and catalytic active sites and promoting the photo-excited charge separation are two key factors to achieve excellent photocatalytic *** this study,we report a sol-gel synthesis approach to obtain non-metal doped TiO_(2)with sponge-like structure and surface-phase junctions all at *** doping of carbon and nitrogen shifted the activation wavelength to the visible-light region,the innovative use of perchloric acid as a pore-making agent led to the formation of three-dimensional lamellar and porous structure with surface-phase *** surface area with catalytic active sites rendered by the sponge-like structure and surface-phase junctions contributed to the much improved photocatalytic degradation efficiency toward rhodamine B,tetracycline and Disperse Red 60 with excellent reusability and *** improved gen eration and separati on efficie ncy of the photo-induced charge carriers of the as-prepared TiO_(2)were supported by electrochemical impedance measurements and transient photocurrent *** method could also be applied to other photocatalysts to achieve structural alteration and element doping simultaneously.

关键词： Structural alteration Surface-phase junction Photocatalytic degradation Visible light TiO_(2)

Characteristics of retinal vein occlusion with final vision better than 78 letters after sequential therapy with ranibizumab and triamcinolone acetate

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International Journal of Ophthalmology(English edition) 2017年第2期10卷 271-276页

作者： yao-Wu qin Jia Yu Quan Zhang Ophthalmology Department of EENT Hospital Affiliated to Fudan UniversityShanghai Key Laboratory of Visual Impairment and RestorationShanghai 200031China

AIM： To analyze the reasons that may lead to the different vision result by combining the ranibizumab and triamcinolone acetate（TA） in sequence to treat macular edema in retinal vein occlusion（RVO）.METHODS： Ranibizumab and TA were combined in sequence to treat 43 patients with macular edema secondary to *** months after the treatment,patients with central fovea thickness（CFT） less than 300 μm in optical coherence tomography（OCT） were collected into Groups I and II,based on vision acuity（VA） better than 78 letters or less than 60 *** age,baseline VA,duration from onset to treatment,CFT at the baseline,sub-retinal fluid（SRF）,sub-foveal exudates and injection times of TA and ranibizumab were taken into ***： The mean age of the subjects was 46.4y in Group I but 57.5y in Group *** difference of age was significant between groups（P〈0.01）.The mean baseline VA was 51.4 letters in Group I and 43.9 letters in Group II（P〈0.05）.The baseline CFT were 670.9 μm in Group I with SRF in 54.3% patients and 678.1 μm in Group II with SRF in 52.9%（P〉0.05）.The mean number of injections of TA was 0.9 and the mean number of injections of ranibizumab was 2.3 in Group I but 1.7 and 2.9 respectively in Group *** treatment times of ranibizumab had no difference between the 2 groups（P〉0.05） but the difference of TA injection times was significant（P〈0.05）.Subfoveal exudates at final stage happened in no subjects in Group I but in 45.83% subjects in Group ***： This combined treatment is safer than TA injection and cheaper than ranibizumab injection *** patients and earlier treatment will help to get better vision *** exudates at the final stage have significant relationship with vision *** relationship existed between the baseline CFT,SRF and the vision outcome.

关键词： retinal vein occlusion macular edema ranibi-zumab triamcinolone acetate sequential therapy

Study on the new shell bolting and shotcrete support and its application in soft rock tunnels

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Journal of Coal Science & Engineering(China) 2009年第1期15卷 41-45页

作者： yao Chuan-qin Department of Civil Engineering Anhui University of Science ＆ Technology Huainan 232001 China

A new kind of tunnel support was put forward on the basis of the anchor spraysupport principle. The mechanics of the new three-dimensional steel bar shotcrete liningsupport was studied and the structure's internal forces were analyzed. The model experiment was done relying on the industrial test. The conclusion of numerical calculationsproved that the ANSYS program is reasonable and creditable. It was compared to otherkinds of support that are commonly used in soft rock tunnels. The technique and economiccontrasts of the typical tunnel with support three-dimensional steel bar were completed.

关键词： soft rock tunnel three-dimensional steel bar shotcrete lining support