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Simulating a topological transition in a superconducting phase qubit by fast adiabatic trajectories

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Science China(Physics,Mechanics & Astronomy) 2018年第4期61卷 75-81页

作者： Tenghui Wang Zhenxing Zhang Liang xiang Zhihao Gong Jianlan wu yi yin physics Department Zhejiang UniversityHangzhou 310027China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

The significance of topological phases has been widely recognized in the community of condensed matter physics. The well controllable quantum systems provide an artificial platform to probe and engineer various topological phases. The adiabatic trajectory of a quantum state describes the change of the bulk Bloch eigenstates with the momentum, and this adiabatic simulation method is however practically limited due to quantum dissipation. Here we apply the "shortcut to adiabaticity"(STA) protocol to realize fast adiabatic evolutions in the system of a superconducting phase qubit. The resulting fast adiabatic trajectories illustrate the change of the bulk Bloch eigenstates in the Su-Schrieffer-Heeger(SSH) model. A sharp transition is experimentally determined for the topological invariant of a winding number. Our experiment helps identify the topological Chern number of a two-dimensional toy model, suggesting the applicability of the fast adiabatic simulation method for topological systems.

关键词： quantum state transfer shortcut to adiabaticity topological transition

急诊经皮冠状动脉介入治疗术中冠状动脉内小剂量重组人尿激酶原联合替罗非班注射用于高龄急性ST段抬高型心肌梗死患者的有效性和安全性

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中国药物经济学 2023年第10期18卷 98-100,104页

作者：易松张永庚易祥武孙恕邹晓荣谢明团宜春市人民医院心血管内科江西宜春336000 宜春市人民医院介入科江西宜春336000

目的探讨急诊经皮冠状动脉介入治疗(PCI)术中冠状动脉内小剂量重组人尿激酶原联合替罗非班注射用于高龄急性ST段抬高型心肌梗死(STEMI)患者的有效性和安全性。方法选取2020年10月至2021年10月宜春市人民医院心内科收治的年龄大于65岁... 详细信息

目的探讨急诊经皮冠状动脉介入治疗(PCI)术中冠状动脉内小剂量重组人尿激酶原联合替罗非班注射用于高龄急性ST段抬高型心肌梗死(STEMI)患者的有效性和安全性。方法选取2020年10月至2021年10月宜春市人民医院心内科收治的年龄大于65岁的STEMI患者80例作为研究对象,按照随机数字表法分为试验组与对照组,各40例。对照组行急诊PCI术中冠状动脉内推注替罗非班,试验组行急诊PCI时冠状动脉内推注替罗非班联合小剂量重组人尿激酶原,随访调查6个月,比较两组的治疗效果。结果术后试验组无复流率为5.00%,低于对照组的20.00%,差异有统计学意义(P<0.05)。试验组术后即刻胸痛缓解率90.00%高于对照组的72.50%,差异有统计学意义(P<0.05)。试验组心血管不良事件(MACE)发生率5.26%低于对照组的21.63%,差异有统计学意义(P<0.05)。结论急诊PCI术中冠状动脉内小剂量重组人尿激酶原联合替罗非班注射用于高龄STEMI患者效果显著,且安全性较高。

关键词：急性ST段抬高型心肌梗死替罗非班重组人尿激酶原主要心血管不良事件经皮冠状动脉介入治疗

Precision Balance Method for Cupped Wave Gyro Based on Cup-bottom Trimming

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Chinese Journal of Mechanical Engineering 2012年第1期25卷 63-70页

作者： TAO yi XI xiang XIAO Dingbang TAN yingqi CUI Hongjuan wu Xuezhong College of Mecha tronics Engineering and Automation National University of Defense TechnologyChangsha 410073China wuhan Ordnance N.C.O.Academy Wuhan 430075China Department of Mechatronics Engineering Zhuhai CollegeJilin UniversityZhuhai 519041China

The mechanical balance process is the key process to eliminate the quadrature error and improve the performance of the cupped wave gyro. The conventional mechanical balance method for cupped wave gyro based on cup-wall trimming requires high control accuracy of trimming quantity, which increases the production cost and decreases the fabrication efficiency in large extent. However, it is hard to reach the high balance accuracy with the natural frequency split of mHz grade by using the conventional method. In this paper, the lumped mass dynamic model of the cupped wave gyro is built by discretization method, and the effects of different position trimming on the natural frequency are analyzed. It is pointed out that trimming off a tiny quantity of material from cup-wall causes large variation of the natural frequency is the main reason for the low accuracy of the conventional mechanical balance method. Then, a precision balance method for cupped wave gyro based on cup-bottom trimming is presented and the entire procedures of this method are given. The static balance process and dynamic balance process of the precision balance method are simulated by the finite element software. The simulation result shows that the precision balance method based on cup-bottom trimming brings less additional natural frequency split in the static balance process, minimizes the natural frequency split to mHz grade and rectify the angle of mode offset to 0.1° grade in the dynamic balance process, furthermore, the method decreases the requirement for control accuracy of trimming quantity evidently. The research work provides references for structure optimization design and balance process plan of the cupped wave gyro.

关键词： cupped wave gyro precision balance trimming modal analysis natural frequency split

Tuning the interfacial reaction environment via pH-dependent and induced ions to understand C–N bonds coupling performance in NO3- integrated CO2 reduction to carbon and nitrogen compounds over dual Cu-based N-doped carbon catalyst

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Journal of Energy Chemistry 2025年第1期 273-285页

作者： Tianhang Zhou Chen Shen Zhenghao wu Xingying Lan yi Xiao College of Carbon Neutrality Future Technology State Key Laboratory of Heavy Oil Processing China University of Petroleum (Beijing) Institute of Materials Science TU Darmstadt Department of Chemistry Xi'an Jiaotong-Liverpool University Department of Mechanical and Mechatronics Engineering and Waterloo Institute of Nanotechnology University of Waterloo Waterloo

Dual atomic catalysts （DAC）,particularly copper （Cu2）-based nitrogen （N） doped graphene,show great potential to effectively convert CO2and nitrate （NO3-） into important industrial chemicals such as ethylene,glycol,acetamide,and urea through an efficient catalytical process that involves C–C and C–N ***,the origin of the coupling activity remained unclear,which substantially hinders the rational design of Cu-based catalysts for the N-integrated CO2reduction reaction （CO2RR）.To address this challenge,this work performed advanced density functional theory calculations incorporating explicit solvation based on a Cu2-based N-doped carbon (Cu2N6C10) catalyst for *** calculations are aimed to gain insight into the reaction mechanisms for the synthesis of ethylene,acetamide,and urea via coupling in the interfacial reaction *** to the sluggishness of CO2,the formation of a solvation electric layer by anions （F-,Cl-,Br-,and I-） and cations (Na+,Mg2+,K+,and Ca2+) leads to electron transfer towards the Cu *** process significantly accelerates the reduction of *** results reveal that*CO intermediates play a pivotal role in N-integrated ***,the Cu2-based N-doped carbon catalyst examined in this study has demonstrated the most potential for C–N coupling to *** findings reveal that through the process of a condensation reaction between*CO and NH2OH for urea synthesis,*NO3-is reduced to*NH3,and*CO2to*CCO at dual Cu atom *** dual-site reduction facilitates the synthesis of acetamide through a nucleophilic reaction between NH3and the ketene ***,we found that the I-and Mg2+ions,influenced by pH,were highly effective for acetamide and ammonia synthesis,except when F-and Ca2+were ***,the mechanisms of C–N bond formation were investigated via ab-initio molecular dynamics simulations,and we found that adjusting the micro-environment can change the dominant side reaction,shift

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A Transfer Learning Framework for Deep Multi-Agent Reinforcement Learning

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IEEE/CAA Journal of Automatica Sinica 2024年第11期11卷 2346-2348页

作者： yi Liu xiang wu Yuming Bo Jiacun Wang Lifeng Ma the School of Automation Nanjing University of Science and Technology the Department of Computer Science and Software Engineering Monmouth University

Dear Editor,This letter presents a new transfer learning framework for the deep multi-agent reinforcement learning(DMARL) to reduce the convergence difficulty and training time when applying DMARL to a new scenario [1... 详细信息

关键词： Deep agent Framework

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Solid-state electrolytes for solid-state lithium-sulfur batteries:Comparisons,advances and prospects

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Journal of Energy Chemistry 2022年第10期31卷 370-386,I0009页

作者： Xin Liang Lulu Wang Xiaolong wu Xuyong Feng Qiujie wu yi Sun Hongfa xiang Jiazhao Wang School of Energy Materials and Chemical Engineering Hefei UniversityHefei 230601AnhuiChina School of Materials Science and Engineering Engineering Research Center of High–Performance Copper Alloy Materials and ProcessingMinistry of EducationHefei University of TechnologyHefei 230009AnhuiChina Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2519Australia

Compared with other secondary batteries,lithium-sulfur batteries(LSBs)have unparalleled advantages such as high energy density,low cost,*** liquid LSB systems,it is extremely easy to cause severe‘‘shuttle effecto and safety ***,the development of solid-state LSBs(SSLSBs)has been attracting much more *** the most essential part of the SSLSBs,the solid-state electrolyte(SSE)has received significant attention from *** this review,we concentrate on discussing the core of SSLSBs,which is the ***,we also highlight the differences in the properties of the different SSEs,which are polymer-based electrolytes and ceramic-based *** addition,the challenges and advances in different types of SSEs are also compared and described ***,the prospects for new SSE systems and the design of effective SSE structures to achieve highperformance SSLSBs are also ***,this review is expected to give readers a comprehensive and systematic understanding of SSEs for SSLSBs.

关键词： Solid-state lithium-sulfur batteries Solid-state electrolyte Polymer-based electrolyte Ceramic-based electrolyte

Automatically Identifying Calling-Prone Higher-Order Functions of Scala Programs to Assist Testers

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Journal of Computer Science & Technology 2020年第6期35卷 1278-1294页

作者： yi-Sen Xu xiang-Yang Jia Fan wu Lingbo Li Ji-Feng Xuan School of Computer Science Wuhan UniversityWuhan 430072China Turing Intelligence Technology Limited LondonEC2Y 9STU.K.

For the rapid development of internetware, functional programming languages, such as Haskell and Scala, can be used to implement complex domain-specific applications. In functional programming languages, a higher-order function is a function that takes functions as parameters or returns a function. Using higher-order functions in programs can increase the generality and reduce the redundancy of source code. To test a higher-order function, a tester needs to check the requirements and write another function as the test input. However, due to the complex structure of higher-order functions, testing higher-order functions is a time-consuming and labor-intensive task. Testers have to spend an amount of manual effort in testing all higher-order functions. Such testing is infeasible if the time budget is limited, such as a period before a project release. In practice, not every higher-order function is actually called. We refer to higher-order functions that are about to be called as calling-prone ones. Calling-prone higher-order functions should be tested first. In this paper, we propose an automatic approach, namely PHOF, which predicts whether a higher-order function of Scala programs will be called in the future, i.e., identifying calling-prone higher-order functions. Our approach can assist testers to reduce the number of higher-order functions of Scala programs under test. In PHOF, we extracted 24 features from source code and logs to train a predictive model based on known higher-order function calls. We empirically evaluated our approach on 4832 higher-order functions from 27 real-world Scala projects. Experimental results show that PHOF based on the random forest algorithm and the Synthetic Minority Oversampling Technique Processing strategy (SMOTE) performs well in the prediction of calls of higher-order functions. Our work can be used to support the scheduling of limited test resources.

关键词： higher-order function testing tool test management Scala program internetware

Overexpression pattern,function,and clinical value of proteasome 26S subunit non-ATPase 6 in hepatocellular carcinoma

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World Journal of Clinical Oncology 2025年第2期16卷 76-93页

作者： Sheng-Sheng Zhou Yu-Ping Ye yi Chen Da-Tong Zeng Guang-Cai Zheng Rong-Quan He Bang-Teng Chi Lei Wang Qian Lin Qin-Yan Su yi-wu Dang Gang Chen Jia-Liang Wei Department of Medical Oncology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Clinical Laboratory The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Pathology Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina Department of Surgery Redcross Hospital of Yulin CityYulin 537000Guangxi Zhuang Autonomous RegionChina

BACKGROUND In recent years,many studies have shown that proteasome 26S subunit non-ATPase 6(PSMD6)plays an important role in the occurrence and development of malignant ***,there are no reports on the evaluation of the potential role of PSMD6 in hepatocellular carcinoma(HCC).AIM To comprehensively evaluate the overexpression pattern and clinical significance of PSMD6 in HCC *** This study integrated PSMD6 mRNA expression profiles from 4672 HCC and 3667 non-HCC tissues,along with immunohistochemical scores from 383 HCC and adjacent tissues,to assess PSMD6 overexpression in *** regularly interspaced short palindromic repeats knockout technology evaluated PSMD6’s essential role in HCC cell *** enrichment analysis explored the molecular mechanism of PSMD6 abnormalities in *** sensitivity analysis and molecular docking analysed the effect of abnormal expression of PSMD6 on the drug sensitivity of HCC *** The results of 41 external and two internal datasets showed that PSMD6 mRNA(SMD=0.26,95%CI:0.09-0.42,P<0.05)and protein(SMD=2.85,95%CI:1.19-4.50,P<0.05)were significantly overexpressed in HCC *** integrated analysis results showed that PSMD6 had a significant overexpression pattern in HCC tissues(SMD=0.40,95%CI:0.15-0.66,P<0.05).PSMD6 knockout inhibited HCC cell growth(chronos scores<-1).Functional enrichment implicated ribosome biogenesis and RNA *** enrichment of signalling pathways such as RNA degradation,ribosomes,and chemical carcinogenesis—reactive oxygen *** sensitivity analysis and a molecular docking model showed that high expression of PSMD6 was associated with the tolerance of HCC cells to drugs such as ML323,sepantronium bromide,and *** PSMD6 effectively distinguished HCC tissues(AUC=0.75,95%CI:0.71-0.79).CONCLUSION This study was the first to discover that PSMD6 was overexpressed in HCC ***6 is essential for the growth of HCC cell

关键词： Hepatocellular carcinoma Proteasome 26S subunit non-ATPase 6 Clustered regularly interspaced short palindromic repeats Ribosome biogenesis RNA splicing

Reconstruction of the chest wall after resection of malignant peripheral nerve sheath tumor:A case report

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World Journal of Clinical Cases 2021年第24期9卷 7117-7122页

作者： xiang Guo Wei-Ming wu Lei Wang yi Yang Department of Thoracic Surgery Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China

BACKGROUND Malignant peripheral nerve sheath tumors(MPNSTs)are a group of rare and aggressive sarcomas that often arise from major peripheral nerves and represent a notable challenge to efficacious *** can occur in any body surface and visceral organs with nerve fiber *** treatment options for MPNSTs include surgery,chemotherapy,and adjuvant *** SUMMARY A 26-year-old female cellist presented with chest pain on her left side when she squatted to lift the *** week later,a chest X-ray was performed and revealed fracture of the fourth rib on the left *** months later,the patient inadvertently touched a mass on the left side of the chest *** computed tomography(CT)three-dimensional reconstruction of the ribs revealed bone destruction of the fourth rib on the left side with a soft tissue mass shadow measuring 5.7 cm×3.7 ***-guided puncture biopsy of the tumor showed that heterotypic cells(spindle cells)tended to be nonepithelial tumor ***-CT demonstrated bone destruction and a soft tissue mass with avid 18F-fluorodeoxyglucose activity(SUVmax7.5)in the left fourth *** tumor of the left chest wall was resected under general anesthesia,and reconstruction of the chest wall was *** postoperative pathological report exhibited an *** MPNSTs are relatively chemo-insensitive *** mainstay of treatment for MPNSTs remains resection with tumor-free margins.

关键词： Malignant peripheral nerve sheath tumor Chest wall Reconstruction Case report