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The Lobster Eye Imager for Astronomy Onboard the SATech-01 Satellite

Research in Astronomy and Astrophysics 2023年第9期23卷 66-78页

作者： Z.X.Ling X.J.Sun C.Zhang S.L.Sun G.Jin S.N.Zhang X.F.Zhang J.B.Chang F.S.Chen Y.F.Chen Z.w.Cheng w.Fu Y.X.han h.Li J.F.Li Y.Li Z.D.Li P.R.Liu Y.h.Lv X.h.Ma Y.J.Tang C.B.wang R.J.Xie Y.L.Xue A.L.Yan Q.Zhang C.Y.Bao h.B.Cai h.Q.Cheng C.Z.Cui Y.F.Dai D.w.Fan h.B.hu J.w.hu M.h.huang Z.Q.Jia C.C.Jin D.Y.Li J.Q.Li h.Y.Liu M.J.Liu Y.Liu h.w.pan Y.L.Qiu M.Sugizaki h.Sun w.X.wang Y.L.wang Q.Y.wu X.P.Xu Y.F.Xu h.N.Yang X.Yang B.Zhang M.Zhang w.D.Zhang Z.Zhang D.h.Zhao X.Q.Cong B.w.Jiang L.h.Li X.B.Qiu J.N.Sun D.T.Su J.wang C.wu Z.Xu X.M.Yang S.K.Zhang Z.Zhang N.Zhang Y.F.Zhu h.Y.Ban X.Z.Bi Z.M.Cai w.Chen X.Chen Y.h.Chen Y.Cui X.L.Duan Z.G Feng Y.Gao J.w.he T.he J.J.huang F.Li J.S.Li T.J.Li T.T.Li h.Q.Liu L.Liu R.Liu S.Liu N.Meng Q.Shi A.T.Sun Y.M.wang Y.B.wang h.C.wu D.X Xu Y.Q Yang Y.Yang X.S.Yu K.X.Zhang Y.L.Zhang Y.h.Zhang Y.T.Zhang h.Zhou X.C.Zhu J.S.Cheng L.Qin L.wang Q.L.wang M.Bai R.L.Gao Z.Ji Y.R.Liu F.L.Ma Y.J.Shi J.Su Y.Y.Tan J.Z.Tong h.T.Xu C.B.Xue G.F.Xue w.Yuan National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083China North Night Vision Technology Co. LTDNanjing 211106China Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China Science and Technology on Low-Light-Level Night Vision Laboratory Xi'an 710065China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201204China Institute of Electrical Engineering Chinese Academy of ScienceBeijing 100190China National Space Science Center Chinese Academy of ScienceBeijing 100190China

The Lobster Eye Imager for Astronomy(LEIA),a pathfinder of the wide-field X-ray Telescope of the Einstein Probe mission,was successfully launched onboard the SATech-01 satellite of the Chinese Academy of Sciences on2022 July *** this paper,we introduce the design and on-ground test results of the LEIA *** stateof-the-art Micro-Pore Optics(MPO),a wide field of view of 346 square degrees(18.6°×18.6°)of the X-ray imager is *** optical assembly composed of 36 MPO chips is used to focus incident X-ray photons,and four large-format complementary metal-oxide semiconductor(CMOS)sensors,each of size 6 cm×6 cm,are used as the focal plane *** instrument has an angular resolution of 4’-8’(in terms of FwhM)for the central focal spot of the point-spread function,and an effective area of 2-3 cm^(2) at 1 keV in essentially all the directions within the field of *** detection passband is 0.5-4 keV in soft X-rays and the sensitivity is2-3×10^(-11) erg s^(-1) cm^(-2)(about 1 milliCrab)with a 1000 s *** total weight of LEIA is 56 kg and the power is 85 *** satellite,with a design lifetime of 2 yr,operates in a Sun-synchronous orbit of 500 km with an orbital period of 95 *** is paving the way for future missions by verifying in flight the technologies of both novel focusing imaging optics and CMOS sensors for X-ray observation,and by optimizing the working setups of the instrumental *** addition,LEIA is able to carry out scientific observations to find new transients and to monitor known sources in the soft X-ray band,albeit with limited useful observing time available.

关键词： instrumentation detectors-space vehicles instruments-telescopes-X-rays genera

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Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic h2O2 synthesis coupled with biomass valorization

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Journal of Energy Chemistry 2025年第01期 215-225页

作者： Jiaye Li Shuang pan Yihuang Chen Qiong Liu College of Chemistry and Materials Engineering Wenzhou University Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （h2O2） synthesis presents a green and costeffective production ***,achieving highly selective h2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to h2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for h2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of h2O2coupled with biomass valorization.

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Novel fabrication of soft microactuators with morphological computing using soft lithography

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Microsystems & Nanoengineering 2019年第1期5卷 217-226页

作者： Manav Tyagi Jingle pan Edwin w.h.Jager Sensor and Actuator Systems Department of PhysicsChemistryand Biology(IFM)Linköping UniversityLinköping 58183Sweden

A simple and cost-effective method for the patterning and fabrication of soft polymer microactuators integrated with morphological computation is *** microactuators combine conducting polymers to provide the actuation,with spatially designed structures for a morphologically controlled,user-defined *** lithography is employed to pattern and fabricate polydimethylsiloxane layers with geometrical pattern,for use as a construction element in the *** microactuators could obtain multiple bending motions from a single fabrication process depending on the morphological pattern defined in the final *** of fabricating via conventional photolithography route,which involves multiple steps with different chromium photomasks,this new method uses only one single design template to produce geometrically patterned layers,which are then specifically cut to obtain multiple device *** desired design of the actuator is decided in the final step of *** resulting microactuators generate motions such as a spiral,screw,and tube,using a single design template.

关键词： lithography template pattern

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The effect of cation size(h^+, Li^+, Na^+, and K^+) on McLafferty-type rearrangement of even-electron ions in mass spectrometry

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Science China Chemistry 2014年第5期57卷 662-668页

作者： ChAI YunFeng pan YuanJiang Department of Chemistry Zhejiang University

Protonation and alkali-metal cation adduction are the most important ionization processes in soft-ionization mass *** on the fragmentation mechanism of protonated and alkali-metal-cationized compounds in tandem mass spectrometry are essential and helpful for structural *** some cases,it was often observed that a compound attached by different alkali-metal cations(or proton)exhibits similar fragmentation patterns but the relative abundances of product ions are *** difference was considered to derive from the different electrostatic interactions of alkali-metal cations(or the bonded effect of proton)with the *** alkali-metal cation with a smaller ionic radius shows stronger electrostatic interaction with the molecule because of its higher charge *** addition,the bonded effect of the proton is stronger than the electrostatic interaction of the alkali-metal *** the present study,which used McLafferty-type rearrangements of even-electron ions([M+Cat]+,Cat=h,Li,Na,K)as model reactions,the effect of cation size in mass spectrometric fragmentation reactions is *** considerations were also successfully applied to interpret the similar but distinct fragmentation behavior of proton and alkali-metal cation adducts of a synthetic compound(2-(acetamido(phenyl)methyl)-3-oxobutanoate)and a drug(entecavir).

关键词： even-electron ion alkali-metal cation McLafferty rearrangement charge-remote fragmentation ionic radius

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Tuning the morphologies of SiC nanowires via the change of the Co_xSi_y melts

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Nano-Micro Letters 2010年第1期2卷 11-17页

作者： J.J.Chen Y.pan w.h.Tang Q.Shi Department of Physics Center for Optoelectronics Materials and Devices Zhejiang Sci-Tech University Department of Materials Science and Engineering Zhejiang University Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-Tech University) Ministry of education

SiC nanowires and SiC/SiO2 core-shell structural nanowires were synthesized via a simple thermal evaporation of CoxSiy melts at the temperature of 1500?C. The morphologies and yields of those SiC nanowires can be tuned by altering the composition of CoxSiy. Nanowires obtained by thermal evaporation of Co Si are composed of SiC/SiO2 core-shell nanostructures with lengths up to several hundreds of micrometers, diameters of 4050 nm, and the thickness of amorphous SiO2 wrapping shell about 20 nm. SiC nanowires prepared by thermal evaporation of Co Si2 and Co2 Si melt are found to be hexagonal-prism-shaped nanorods, and the diameter of those nanorods is about 150 nm and the length is about 10 microns. All the SiC nanowires obtained possess [111] preferred growth direction with a high density stacking faults and twin defects. Taking into consideration the binary alloy diagram of Co Si and the participation of oxygen, we propose the vapor-solid growth mechanism of SiC nanowires and discuss the effect of the supersaturation of Si O on the morphology and yields of SiC nanowires.

关键词： Silicon carbide Nanowires Morphology

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Li掺杂对4h-SiC光电性质影响的理论研究

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原子与分子物理学报 2025年第2期42卷 151-158页

作者：李萍尹伟潘学聪庞国旺马亚斌杨亚宏杨菲宇张盼秦彦军新疆理工学院理学院阿克苏843100 新疆理工学院机电工程学院阿克苏843100

采用基于密度泛函理论的第一性原理方法,计算了Li掺杂4h-SiC体系的电子结构及光学性质.结果表明,掺杂前后的4h-SiC均为间接带隙半导体,Li原子间隙掺杂后形成n型半导体,Li原子替位式掺杂体系的禁带中出现了杂质能级,降低了电子跃迁时所... 详细信息

采用基于密度泛函理论的第一性原理方法,计算了Li掺杂4h-SiC体系的电子结构及光学性质.结果表明,掺杂前后的4h-SiC均为间接带隙半导体,Li原子间隙掺杂后形成n型半导体,Li原子替位式掺杂体系的禁带中出现了杂质能级,降低了电子跃迁时所需的能量;对电荷差分密度图的分析表明,Li原子失去电子,导致Li-C键和Li-Si键的共价性降低,以离子性为主;在可见光区域,相比于4h-SiC体系,掺杂体系的吸收率峰值均有所提高,其中Li间隙掺杂体系吸收带边最小,吸收率峰值最大,掺杂后的4h-SiC体系对红外、可见光、紫外均能够有所吸收,说明Li掺杂能够有效拓宽4h-SiC对光的响应范围.

关键词： Li掺杂 4h-SiC 电子结构光学性质第一性原理

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Neuroinflammation as a therapeutic target in huntington's disease

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Neural Regeneration Research 2025年第3期20卷 817-818页

作者： Andrea Kwakowsky Thulani h.Palpagama Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CentreUniversity of GalwayGalwayIreland

In 1872, George huntington presented his essay “On Chorea” to the Meigs and Mason Academy of Medicine and, in doing so, detailed a disease that would later bear his name. huntington's disease(hD) is a genetic, neurodegenerative disease that manifests as the loss of motor control,cognitive impairment,and mood and psychiatric changes in paents.

关键词： huntington inflammation Medicine

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Glial response in the midcingulate cortex in huntington’s disease

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Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex

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Adaptive h_∞ Control for Nonlinear hamiltonian Systems with Time Delay and Parametric Uncertainties

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International Journal of Automation and computing 2014年第4期11卷 368-376页

作者： pan wang wei-wei Sun Institute of Automation Qufu Normal University School of Electrical Information and Automation Qufu Normal University

This paper addresses the adaptive h∞ control problem for a class of nonlinear hamiltonian systems with time delay and parametric uncertainties. The uncertainties under consideration are some small parameter perturbations involved in the structure of the hamiltonian system. Both delay-independent and delay-dependent criteria are established based on the dissipative structural properties of the hamiltonian systems and the Lyapunov-Krasovskii functional approach. In order to construct the adaptive h∞controller, the situation that the parameter perturbation is inexistent in the system is also studied and the controller is *** adaptive h∞ control problem is solved under some sufficient conditions which ensure the asymptotic stability and the L2 gain performance of the resulted closed-loop system. Numerical example is given to illustrate the applicability of the theoretical results.

关键词： Nonlinear hamiltonian systems time delay h∞ control uncertainties Lyapunov-Krasovskii function

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Synthesis and Crystal Structure of 3-(2-hydroxybenzly)-4-(4-hydroxybenzylideneamino)-(1h) -1,2,4-Triazole-5-Thione and Its Antibacterial Activities

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Chinese Journal of Structural Chemistry 2005年第12期24卷 1403-1407页

作者： YANG Jian-Guo pan Fu-You Office of Assets Administration Taizhou University Zhejiang 317000 China Department of Chemistry Taizhou University Zhejiang 317000 China

The title compound C15h12N4O2S was synthesized by the reaction of 3-（2-hydroxybenzyl）-4-amino-（1h）-1,2,4-triazole-5-thione with 4-hydroxybenzaldehyde in ethanol and characterized by IR, ^1h NMR spectra and elemental analysis. Its structure has been determined by X-ray diffraction analysis. The crystal belongs to monoclinic, space group C2/c with a = 27.990（3）, b = 13.1326（14）, c = 7.9770（8） A, β= 105.787（2）°, V = 2821.6（5）A^3, Z = 8, Mr= 312.35,μ= 0.243 mm^-1, Dc = 1.471 g/cm^3 and F（000） = 1296. The structure was solved by direct *** refined to a Rint value of 0.0388. The crystal structure involving in intermolecular N-h…S and O-h…S hydrogen bonds is observed, meanwhile intramolecular O-h…N hydrogen bond is also found. Their biological activities have been measured. The results show that this type of compound has certain antibacterial activity for Staphylococous aureus and Bacillus subtilis.

关键词： 1,2,4-triazole-5-thione X-ray diffraction crystal structure,synthesis antibacterial activities

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