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Electrochemical performance of thermally-grown SiO2 as diffusion barrier layer for integrated lithium-ion batteries

Frontiers in Energy 2018年第2期12卷 225-232页

作者： X.D.huang X.F.GAN q.A.huang J.Z.yANG Key Laboratory of MEMS of the Ministry of Education School of Electronic Science and EngineeringSoutheast UniversityNanjing 210096China School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China

Direct integration of lithium-ion battery （LIB） with electronic devices on the same Si substrate can significantly miniaturize autonomous micro systems. For achieving direct integration, a barrier layer is essential to be inserted between LIB and the substrate for blocking Li^＋ diffusion. In this paper, the feasibility of thermal SiOa film as the barrier layer is investigated by electrochemical characterization and X-ray photoelectron spectroscopy （XPS）. Due to the negligible side reactions of thermal SiO2 with electrolyte, the solid electrolyte interphase （SEI） layer formed on the surface of the barrier layer is thin and the SEI content mainly consists of hydrocarbon together with slight polyethylene oxide （PEO）, LixPOyFz, and Li2CO3. Although 8-nm thermal SiO2 effectively prevents the substrate from alloying with Li^＋, the whole film changes to Li silicate after electrochemical cycling due to the irreversible chemical reactions of SiO2 with electrolyte. This degrades the performance of the barrier layer against the electrolyte penetration, thus leading to the existence of Li^＋（in the form of F-Si-Li） and solvent decompositions （with the products of hydrocarbon and PEO） near the barrier layer/substrate interface. Moreover, it is found that the reaction kinetics of thermal SiO2 with electrolyte decrease significantly with increasing the SiO2 thickness and no reactions are found in the bulk of the 30-nm SiO2 film. Therefore, thermal SiO2 with an appropriate thickness is a promising barrier layer for direct integration.

关键词： autonomous micro system direct integration barrier layer thermal SiO2 film X-ray photoelectron spectroscopy (XPS)

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长周期变星的脉冲(英文)

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紫金山天文台台刊 1994年第2期13卷 86-91页

作者： Z.G.Gong y.Li R.q.huang yunnam Observatory Chinese Academy of SciencesYunnam Observatory Chinese Academy of Sciences Kiepenheuer Institut for Sonnenphysik GermanyYunnam Observatory Chinese Academy of Sciences

Supergiant and AGB LPVs are investigated by calculating both their evolution and pulsations. The fundamental mode is thought to be the most possible pulsation mode for supergiant LPVs, and the first overtone for AGB LPVs. The mixing length and mass loss may result in some effects on the pulsations. A very large mass loss rate is demanded in the late stage of intermediate mass stellar evolution, however, the mass loss rate may not be quite large in the massive stars before their red supergiant phase. There may exist a strong stellar wind which is related with pulsation for long-period variables.

关键词：长周期变星脉冲 Stewart 英文 method Bessel Classical Magellan Chinese Gardner

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Experimental Hamiltonian Learning of an 11-qubit Solid-State quantum Spin Register

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Chinese Physics Letters 2019年第10期36卷 11-16页

作者： P.-y.Hou L.He F.Wang X.-Z.huang W.-G.Zhang X.-L.Ouyang X.Wang W.-q.Lian X.-y.Chang L.-M.Duan Center for quantum Information Institute for Interdisciplinary Information SciencesTsinghua UniversityBeijing 100084

Learning the Hamiltonian of a quantum system is indispensable for prediction of the system dynamics and realization of high fidelity quantum ***,it is a significant challenge to efficiently characterize the Hamiltonian which has a Hilbert space dimension exponentially growing with the system ***,we develop and implement an adaptive method to learn the effective Hamiltonian of an 11-qubit quantum system consisting of one electron spin and ten nuclear spins associated with a single nitrogen-vacancy center in a *** validate the estimated Hamiltonian by designing universal quantum gates based on the learnt Hamiltonian and implementing these gates in the *** experimental result demonstrates a well-characterized 11-qubit quantum spin register with the ability to test quantum algorithms,and shows our Hamiltonian learning method as a useful tool for characterizing the Hamiltonian of the nodes in a quantum network with solid-state spin qubits.

关键词： Hamiltonian quantum system

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

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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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Low-Loss, Broadband and Tunable Negative Refractive Index Metamaterial

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Journal of Electromagnetic Analysis and Applications 2010年第2期2卷 104-110页

作者： y.J. huang G.J. Wen T.q. Li K. Xie 不详

This paper report on a low-loss, broadband, and tunable negative refractive index metamaterial (NRIM) consisting of yttrium iron garnet (yIG) slabs and printed circuit boards (PCBs). The yIG slabs under an applied magnetic field provide a negative permeability and the PCBs provide a negative permittivity. The substrates of the PCBs decuple the interactions between the yIG slabs and wire array deposed on such substrates. The effective electromagnetic parameters of the NRIM and the conditions of exhibiting the negative refractive index character are analyzed theoretically. Then the negative transmission and negative refraction characters are investigated numerically and experimentally. The results indicate that the NRIM exhibits negative pass band within the X-band with a bandwidth of about 1 GHz and a peak transmission power of about - 2.5 dB. While changing the applied magnetic field from 2300 Oe to 2700 Oe, the measured pass band of NRIM shift from 8.42 GHz to 9.50 GHz with a 2.7 MHz/Oe step. The results open a sample way to fabricate the NRIM, further, the metamaterial cloak and absorber.

关键词： Metamaterial Negative Refractive Index Tunability Low-Loss Broadband

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The growing threat of non-alcoholic fatty liver disease-related hepatocellular carcinoma

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Hepatobiliary Surgery and Nutrition 2022年第5期11卷 735-737页

作者： Margaret L.P.Teng Kai En Chan Darren J.H.Tan Daniel q.huang Division of Gastroenterology and Hepatology Department of MedicineNational University Health SystemSingaporeSingapore yong Loo Lin School of Medicine National University of SingaporeSingaporeSingapore

Non-alcoholic fatty liver disease(NAFLD)is the fastest growing cause of hepatocellular carcinoma(HCC)worldwide(1).It is anticipated that the burden of NAFLD-related HCC will continue to increase in tandem with the global obesity epidemic(2,3).This has become a global issue of concern,as liver cancer is associated with significant morbidity and mortality,and is currently the third leading cause of cancer death(4).

关键词： hepatocellular NAFLD liver

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The Rising Burden of Hepatocellular Carcinoma: Is the Gender Gap Narrowing?

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Journal of Clinical and Translational Hepatology 2024年第9期12卷 763-764页

作者： James K.H.Ho Prem H.Thurairajah Daniel q.huang Kristie H.Fan Division of Gastroenterology and Hepatology National University HospitalNational University Health SystemSingaporeSingapore

Dear Editors,The landscape of hepatocellular carcinoma(HCC)is continuously *** global trends indicate a significant shift in the epidemiology of HCC from viral-related to non-viral-related ***-associated fatty liver disease has emerged as the fastest-growing contributor to HCC in recent years,due to the increased prevalence of obesity and metabolic risk factors.

关键词： Carcinoma epidemiology obesity

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Spiniform phase-encoded metagratings entangling arbitrary rational-order orbital angular momentum

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Light(Science & Applications) 2017年第1期6卷 129-135页

作者： Kun huang Hong Liu Sara Restuccia Muhammad q Mehmood Sheng-Tao Mei Daniel Giovannini AaronDanner Miles J Padgett Jing-Hua Teng Cheng-Wei qiu Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Institute of Materials Research and Engineering Agency for ScienceTechnology and ResearchSingapore 138634Singapore Department of Optics and Optical Engineering University of Science and Technology of ChinaHefei 230026China SUPA School of Physics and AstronomyUniversity of GlasgowGlasgow G128QQUK Information Technology University of the Punjab Lahore 54000Pakistan NUS Graduate School for Integrative Science and Engineering National University of SingaporeSingapore 117456Singapore The Edward S Rogers Department of Electrical and Computer Engineering University of TorontoToronto M5S 3G4Canada SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology Shenzhen UniversityShenzhen 518060China NUS Suzhou Research Institute(NUSRI) Suzhou 215123China

quantum entanglements between integer-order and fractional-order orbital angular momentums(OAMs)have been previously ***,the entangled nature of arbitrary rational-order OAM has long been considered a myth due to the absence of an effective strategy for generating arbitrary rational-order OAM ***,we report a single metadevice comprising a bilaterally symmetric grating with an aperture,creating optical beams with dynamically controllable OAM values that are continuously varying over a rational *** to its encoded spiniform phase,this novel metagrating enables the production of an average OAM that can be increased without a theoretical limit by embracing distributed singularities,which differs significantly from the classic method of stacking phase singularities using fork *** new method makes it possible to probe the unexplored niche of quantum entanglement between arbitrarily defined OAMs in light,which could lead to the complex manipulation of microparticles,high-dimensional quantum entanglement and optical *** show that quantum coincidence based on rational-order OAM-superposition states could give rise to low cross-talks between two different states that have no significant overlap in their spiral ***,future applications in quantum communication and optical micromanipulation may be found.

关键词： metasurface nanophotonics orbital angular momentum superposition state

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关于邻近双星非保守性演化(英文)

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紫金山天文台台刊 1994年第2期13卷 44-58页

作者： R.q.huang yunnan Observatory KunmingPeople's Republic of China

In this paper the main physical effects for the development of the evolutionary theory of close binary systems with mass and angular momentum loss are studied. The effects which are especially important for evolution ... 详细信息

关键词：保守性双星英文 matt System abundance meaning away China carry

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MTCA.4-based LLRF control system for the C-ADS proton Linac injector I

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Radiation Detection Technology and Methods 2017年第1期1卷 13-20页

作者： R.Liu X.P.Ma N.Gan H.y.Lin q.y.Wang Z.H.Mi S.Z.Wang X.F.huang yan Wu G.W.Wang y.L.Chi Weimin Pan Key Laboratory of Particle Acceleration Physics and Technology IHEPCASBeijing 100049China

Objective:The Chinese ADS proton Linac injector I composed of an electron cyclotron resonance ion source,a lowenergy beam transport line,a radio frequency quadrupole(RFq)accelerator,a medium-energy beam transport(MEBT)line,a superconducting section and beam dump with design goal to achieve CW proton beam with beam current 10 mA and energy gain around 10 *** order to maintain the stability of the RF system,to compensate for the beam load effect and to provide the GUI required for the operation of the RF power system,we have established a LLRF control ***:This LLRF system for ADS proton Linac injector I in IHEP consists of RF reference system and LLRF controllers for oneRFqcavity,twoMEBTbunching cavities and 14 superconductive spoke *** have adopted a new development mTCA.4-based hardware platform,and it has some characteristics such as faster bandwidth,standardized design,easy operation and maintenance and good ***:The LLRF system has been improved and optimized and has now been put into *** takes into account the pulse and CW beam flow mode,feedforward and feedback control ***:With the help of this system,we achieved stable operationwith narrowpulses,long pulses,andCWmodes under different beam *** article describes the implementation of this system and presents some initial the CW beam acceleration results with the help of this system at the end of 2016.

关键词： RF system RFq Spoke cavity LLRF MTCA.4 CW proton beam

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