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FPGA implementation of 10 G Ethernet-based DAQ systems for pixel detectors

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Radiation Detection Technology and Methods 2020年第1期4卷 31-38页

作者： hang-xu li Jie Zhang Ye Ding Shan-shan Cui Zheng Wang Xiao-shan Jiang State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China University of Chinese Academy of Sciences(UCAS) Beijing 100049China

Background High Energy Photon Source-Test Facility is a project to study and verify the feasibility of the key technologies which will be applied to that of High Energy Photon Source(HEPS).The pixel array detector is one of the most important components of synchrotron radiation *** In order to meet the requirements of the X-ray detection of HEPS,it was asked to independently develop a pixel array detector prototype with an effective detection area larger than 8×8 cm^(2),a spatial resolution better than 200 pm,a detectable energy range from 8 to 20 keV,and a frame rate higher than 1 *** readout electronics system using the field-programmable gate array(FPGA)as its core of the digital logic makes the basic functions of the detector prototype feasibility by implementing all the configuration and data readout of the BPIX which is the dedicated pixel readout chip designed for Chinese next generation of synchrotron light source and working in the single-photon counting *** the large amount of data generated by pixel detectors and the demand for real-time data acquisition at higher frame rates,a firmware based on the TCP/IP protocol was developed in *** The implementation of 1 G/10 G Ethernet hub firmware provides a method of processing multi-ports Gigabit data and improving *** key idea is the conversion of the GMII/XGMII bus in 1 G/10 G Ethernet protocol and the Arbitrator module applying Round-Robin *** and conclusion The firmware converts and gathers TCP/IP frames from Gigabit network to 10-Gigabit network *** measurement,the bandwidth of the hub can reach 8.57 Gbps.A pixel detector integrated with 1 G/10 G Ethernet hub completes the readout of large flux data on 1.5 mega pixels detector at 1.2 kHz frame rate.

关键词： FPGA TCP/IP 10-Gigabit HEPS

CPEB1,a novel risk gene in recent-onset schizophrenia,contributes to mitochondrial complex I defect caused by a defective provirus ERVWE1

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World Journal of Psychiatry 2021年第11期11卷 1075-1094页

作者： Ya-Ru Xia Xiao-Cui Wei Wen-Shi li Qiu-Jin Yan Xiu-lin Wu Wei Yao xu-hang li Fan Zhu State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy&Immunology Department of Medical MicrobiologySchool of MedicineWuhan UniversityWuhan 430071Hubei ProvinceChina

BACKGROUND Schizophrenia afflicts 1%of the world *** studies suggest that schizophrenia patients may have an imbalance of mitochondrial energy metabolism via inhibition of mitochondrial complex I ***,recent studies have shown that ERVWE1 is also a risk factor for ***,there is no available literature concerning the relationship between complex I deficits and ERVWE1 in *** risk factors and blood-based biomarkers for schizophrenia may provide new guidelines for early interventions and prevention *** To address novel potential risk factors and the underlying mechanisms of mitochondrial complex I deficiency caused by ERVWE1 in *** Quantitative polymerase chain reaction(qPCR)and enzyme-linked immunosorbent assay were used to detect differentially expressed risk factors in blood *** statistical analyses were performed by median analyses and Mann-Whitney U ***’s rank correlation was applied to examine the correlation between different risk factors in blood ***,western blot analysis,and luciferase assay were performed to confirm the relationship among ERVWE1,cytoplasmic polyadenylation element-binding protein 1(CPEB1),NADH dehydrogenase ubiquinone flavoprotein 2(NDUFV2),and NDUFV2 pseudogene(NDUFV2P1).The complex I enzyme activity microplate assay was carried out to evaluate the complex I activity induced by *** Herein,we reported decreasing levels of CPEB1 and NDUFV2 in schizophrenia *** studies showed that ERVWE1 was negatively correlated with CPEB1 and NDUFV2 in ***,NDUFV2P1 was increased and demonstrated a significant positive correlation with ERVWE1 and a negative correlation with NDUFV2 in *** vitro experiments disclosed that ERVWE1 suppressed NDUFV2 expression and promoter activity by increasing NDUFV2P1 *** luciferase assay revealed that ERVWE1 could enhance the promoter

关键词： ERVWE1 CPEB1 NADH dehydrogenase ubiquinone flavoprotein 2 complex I Pseudogene

Design and performance study of the HEPP-H calorimeter onboard the CSES satellite

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Research in Astronomy and Astrophysics 2018年第12期18卷 105-110页

作者： Yu-Fei Nan Zheng-Hua An hang-xu li Xiao-Yun Zhao Xiang-Yang Wen Da-li Zhang Shu-Guang Cheng Xin-Qiao li Hui Wang Xiao-Hua liang Feng Shi Yan-Bing xu Xiao-Xia Yu Ping Wang Hong Lu Huan-Yu Wang Yu-Qian Ma School of Physics Northwest UniversityXi'an 710069China Key Laboratory of Particle Astrophysics(LPA) Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

The China Seismo-Electromagnetic Satellite(CSES) will investigate iono-magnetospheric disturbance and will monitor the temporal stability of the inner Van Allen radiation *** particular,the mission aims at confirming the existences of a temporal correlation between the occurrence of earthquakes and the observation of electromagnetic disturbances, plasma fluctuations and anomalous fluxes of high-energy particles precipitating from the inner Van Allen belt in *** high energy detector of the High Energy Particle Package(HEPP-H) is a payload onboard CSES and is designed for detecting electrons(2–50 MeV) and protons(20–200 MeV) in its 500 km orbit above *** was launched in February *** this paper, the instrumentation and development of the HEPP-H calorimeter are *** calibration with beam particles(electrons and protons) is discussed in detail.

关键词： telescopes instrumentation:detectors site testing

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo hang li Shan Guo Zhuang Tong Xiaotao Zhou xu li Zhaohui Hou Shuquan liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Aqueous zinc-ion batteries Interfacial reaction Asymptotic nucleation model Reversible and stable Zn anode

The development and application of the test system for the silicon pixel modules in HEPS-BPIX

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Radiation Detection Technology and Methods 2021年第1期5卷 53-60页

作者： Ye Ding Jie Zhang Wei Wei Zhen-jie li hang-xu li Xiao-lu Ji Yan Zhang Xiao-shan Jiang Ke-jun Zhu Peng liu Yuan-bo Chen Qiu-ju li Wei-fan Sheng State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China Institute of High Energy Physics Chinese Academy of Sciences19 B Yuquan RdShijingshan DistrictBeijingChina University of Chinese Academy of Sciences(UCAS) Beijing 100049China

Background HEPS-BPIX is a prototype of photon counting pixel detector developed for the High Energy Photon *** consists of 16 silicon pixel modules which should be tested individually to ensure the function and *** Due to various factors such as the non-uniformity of the processes and voltage drop,the response of each pixel in the silicon pixel module is not identical *** response difference of pixels can be minimized by the threshold *** system is developed for the quality test and calibration of the silicon pixel *** The system consists of a mother board,a control board and a data acquisition(DAQ)*** mother board provides necessary resources including power supplies and the fanout of calibration ***,it can be used to test the connectivity by monitoring the power *** control board reads data out and provides the clock,trigger and configuration data for the silicon pixel *** DAQ system sends the control commands and receives the readout data through an Ethernet *** Compared with the previous readout system,this designed system has a lower noise level and better scanning curves making the calibration more *** it has been successfully applied to the comparison experiments of the through silicon via and wire-bonding silicon pixel *** The results show that this test system can be used to the quality test and calibration of the silicon pixel *** addition,the system can be adapted to the measurement of different pixel array detector modules.

关键词： Hybrid silicon pixel module Test and calibration Power management Through silicon via and wire-bonding HEPS

高烈度地区高层基础隔震结构模型振动台试验研究

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工程抗震与加固改造 2024年第5期46卷 62-70页

作者：许航莉福建江夏学院福建福州350108

高层基础隔震结构在我国高烈度地区城市应用前景广阔,开展此类型结构地震反应研究十分必要。以一幢典型办公楼为原型,开展1/15缩尺地震模拟振动台试验,通过不同地震波输入,获得模型结构的动力特性、绝对加速度响应、层间位移响应及隔震... 详细信息

高层基础隔震结构在我国高烈度地区城市应用前景广阔,开展此类型结构地震反应研究十分必要。以一幢典型办公楼为原型,开展1/15缩尺地震模拟振动台试验,通过不同地震波输入,获得模型结构的动力特性、绝对加速度响应、层间位移响应及隔震层响应等参数,并对结构高层部分特殊的突变放大现象进行分析。结果表明:高层基础隔震结构总体具有良好的耗能能力及减震性能;结构可能存在由于高层部分自振频率与整体结构某高阶频率相同而产生的高阶效应,同时高阶效应可能由于结构高层部分自振频率与场地卓越频率相近而愈发强烈;高阶效应使得隔震层上部结构突变处在罕遇地震作用下超越弹塑性层间位移角,同时加剧提离摇摆效应,带动隔震支座受拉超限,需采取振动控制措施以抑制高阶效应。

关键词：高层基础隔震振动台试验高阶效应地震响应

湿热-高温循环老化对碳纤维增强双马树脂基复合材料界面性能的影响

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高分子材料科学与工程 2018年第3期34卷 54-59,66页

作者：马少华许赞许良回丽沈阳航空航天大学机电工程学院沈阳航空航天大学航空制造工艺数字化国防重点实验室辽宁沈阳110136

采用层间剪切的测试方法,研究了湿热-高温循环老化对碳纤维双马树脂基复合材料界面性能的影响,分析了复合材料的质量变化过程以及不同循环老化次数下的层间性能、表面和断口形貌、动态力学性能及红外谱图。结果表明,随着湿热老化次数的... 详细信息

采用层间剪切的测试方法,研究了湿热-高温循环老化对碳纤维双马树脂基复合材料界面性能的影响,分析了复合材料的质量变化过程以及不同循环老化次数下的层间性能、表面和断口形貌、动态力学性能及红外谱图。结果表明,随着湿热老化次数的增加,饱和吸湿率逐渐增大后又减小,但达到吸湿饱和所用时间逐渐缩短;随着高温老化次数的增加,老化前期的质量损失速率降低得不多,但最终的质量损失率有着小幅度的升高。湿热-高温循环老化导致了纤维与基体间的界面破坏,但层间剪切强度降低的幅度不大,有着较高的保持率。随着循环次数的增加,每次湿热老化后的Tg都较前一次有所升高,但在每次高温老化后的Tg都相差不大。高温老化在循环老化过程中起主导作用,期间发生了热老化效应和氧化反应。

关键词：碳纤维双马树脂基复合材料湿热老化高温老化界面性能动态力学性能

Influences of Temperature Regime on Germination of Seed of Wild Soybean(Glycine soja)

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Agricultural Science & Technology 2011年第4期12卷 480-483,540页

作者： liAO Fang-lei JIANG Wu ZHENG Yue-ping xu hang-lin li li-qing LU Hong-fei College of Chemistry and life Science Zhejiang Normal University Jinhua 321004

As an important plant species with high protein contents,wild soybean(Glycine soja),has drawn much attention and appeared to be useful for the genetic improvement of soybean *** temperature is one of the numerous environmental factors affecting the germination of most plants,an experimental study was carried out to determine the effect of temperature on germination of wild soybean(***)*** test was conducted by setting up thirty-six constant and alternating temperature regimes,ranging from 5 to 40 ℃(16 h night/8 h day).Responses in germination rate to these temperature regimes were then used to construct a quadratic response surface,giving estimated germination rates with confidence intervals at P ≤ *** results showed that germination capacity was significantly greater while exposed to constant temperatures of 25 ℃,and under the alternating temperature regime the optimum temperature occurred at the 20/25,25/25,25/30 ℃ regime(16 h/8 h)with the amplitude widened from 0 to 5 ℃.Together with regional monthly climate data,these results could be used to improve and promote the cultivation of wild soybean(***),making it available to develop the location-specific optimum seeding time and to apply weed-control treatments.

关键词： Wild soybean(Glycine soja) Diurnal temperature regimes Mean temperature Germination rate Quadratic response surface Cultivar

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： lin Peng Yu Bai hang li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

lithium-sulfur （li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （liPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes li2S dissolution and nucleation ***,the li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： lithium sulfur batteries