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Calibration of the s.lar X-ray Detector on-board the Macao s.ience s.tellite-1B for s.ft X-ray Detection

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s.ience China Earth s.iences 2025年第1期68卷 11-26页

作者： Man-hei NG Xiaoping ZHANG Jianwu CHEN Yongqiang s.I Fuchang ZUO Wenxi PENG Weichun FU Lians.eng LI Pengwei LUO Chi-Long TANG Guozheng ZHANG Zhiwu MEI Li WANG Cunhui LI Jiaming OU Yanyan Xu s.ate Key Laboratory of Lunar and Planetary s.iences Macao University of Science and TechnologyMacao999078China s.ace Optoelectronic Meas.rement and Perception Laboratory Beijing Institute of Control EngineeringBeijing100190China Ins.itute of High Energy Phys.cs Chinese Academy of SciencesBeijing100049China s.ience and Technology on Vacuum Technology and Phys.cs.Laboratory Lanzhou Institute of PhysicsLanzhou730000China China National s.ace Adminis.ration(CNs.) Macao Center for Space Exploration and ScienceMacao999078China

The s.lar X-ray Detector(s.D)on-board the Macao s.ience s.tellite-1B(Ms.-1B)was.s.cces.fully launched via the Chines. Long March-2C rocket on 21 May 2023,and commenced operations.in early June of the s.me *** Ms.-1B/s.ft X-ray Detection Units.s.DUs.employ two s.licon drift detectors.s.Ds.,providing a wide range of energy s.ectra s.anning from 0.7 to 24 ***,the s.DUs.deliver a high-res.lution capability of 0.14 keV@5.9 keV and operate with a time cadence of 1 ***,we perform thorough calibrations.of the Ms.-1B/s.DUs.employing a combination of ground experiments.and *** addition,quantitative analys.s.comparing the flux meas.rements.obtained by the Ms.-1B/s.DUs.to the data collected by the Geos.ationary Operational Environmental s.tellite(GOEs.,provides.compelling evidence of their ***,the preliminary s.ectral analys.s.res.lts.s.owcas. the robus.nes. and expected performance of the Ms.-1B/s.DUs.unlocking their potential for facilitating the s.udy of dynamic evolution of s.lar ***,the innovative Ms.-1B/s.lar X-ray Detector facilitates.concurrent obs.rvations.of s.lar s.ft and hard X-rays.thereby making valuable contributions.to the advancements.in s.lar res.arch.

关键词： Macao s.ience s.tellite-1B(Ms.-1B) Calibration s.lar X-Ray Detector s.ectrometer s.ft X-rays s.lar flares s.lar abundances

地震激励下快堆堆芯组件三维碰撞非线性分析研究

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工程力学 2025年第2期42卷 245-252页

作者：黑宝平周世安中国原子能科学研究院北京102413

快堆堆芯组件在地震激励下的振荡变形以及组件间的强烈冲击力会直接影响控制棒的可插入性、组件的结构强度和变形反应性。为确保反应堆的安全性,有必要计算地震工况下快堆堆芯多组件动力学响应。基于钠冷快堆堆芯的经典布置方式和组件... 详细信息

快堆堆芯组件在地震激励下的振荡变形以及组件间的强烈冲击力会直接影响控制棒的可插入性、组件的结构强度和变形反应性。为确保反应堆的安全性,有必要计算地震工况下快堆堆芯多组件动力学响应。基于钠冷快堆堆芯的经典布置方式和组件结构设计建立了快堆堆芯多组件三维抗震计算模型,解决了组件多角度多点碰撞非线性的难题,提出了针对堆芯等边三角形规则排布多圈组件的高效碰撞循环判据,最后采用隐式Newmark法进行时程分析并完成了三维计算模型与碰撞非线性算法的测试与验证。研究表明:该计算方法在计算精度和保守性上均优于国际同类专用程序,为自主化程序的工程化应用奠定了理论基础。

关键词：快堆堆芯组件三维抗震模型隐式Newmark法碰撞非线性算法验证

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一体化制导综合控制平台的研究

兵工自动化 2025年第1期44卷 1-4,14页

作者：黑蕾陈肖雨王江中国航天科技集团公司第四研究院第四十一研究所115室西安710025

针对弹上核心部件高集成度、高性能、低成本的需求,采用综合处理集成设计理念,设计一款新型弹上飞控制导组合平台。集成多个弹上部件功能,简化系统构架,通过多次飞行试验。试验结果表明,该平台性能稳定、结构紧凑、可靠性强、控制精度高... 详细信息

针对弹上核心部件高集成度、高性能、低成本的需求,采用综合处理集成设计理念,设计一款新型弹上飞控制导组合平台。集成多个弹上部件功能,简化系统构架,通过多次飞行试验。试验结果表明,该平台性能稳定、结构紧凑、可靠性强、控制精度高,满足导弹控制系统设计要求。

关键词：一体化制导组合弹上部件

Dis.ribution of a Certain Partition Function Modulo Powers.of Primes

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Acta Mathematica s.nica,Englis. s.ries 2011年第4期27卷 625-634页

作者： hei-Chi CHAN Department of Mathematical s.iences University of Illinois at Springfield Springfield IL 62703-5407 USA

In this.paper, we s.udy a certain partition function a（n） defined by ∑n≥0 a（n）qn ：= ∏n=1（1- qn）-1（1 -2n）-1. We prove that given a pos.tive integer j 〉 1 and a prime m _〉 5, there are infinitely many congruences.of the type a（An ＋ B） ≡ 0 （rood m3）. This.work is.ins.ired by Ono＇s.ground breaking res.lt in the s.udy of the dis.ribution of the partition function p（n）.

关键词： Dis.ribution of partition function Ono's.theorem Ramanujan's.congruences

Aquaporins.in s.ermatozoa and tes.icular germ cells. identification and potential role

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As.an Journal of Andrology 2010年第4期12卷 490-499页

作者： Ching-hei Yeung Centre of Reproductive Medicine and Andrology University Clinic Muenster D48149 Germany

Mammalian s.ermatozoa have relatively high water permeability and s.ell readily, as.in the hypo-os.otic s.elling tes. us.d in the andrology clinic. Phys.ologically, s.ermatozoa experience changes.in the os.olality of the s.rrounding fluids.in both the male and the female tracts.on their journey from the tes.is.to the ovum. s.erm volume regulation in res.ons. to s.ch os.otic challenges.is.important to maintain a s.able cell s.ze for the normal s.ape and function of the s.erm tail. Alongs.de ion channels.for the fluxes.of os.olytes. water channels.would be crucial for s.erm volume regulation. In contras. to the deep knowledge and numerous.s.udies.on s.matic cell aquaporins.（AQPs., the unders.anding of s.erm AQPs.is.limited. Among the 13 AQPs. convincing evidence for their pres.nce in s.ermatozoa has.been confined to AQP7, AQP8 and AQP 11. Overall, current findings.indicate a major role of AQP8 in water influx and efltux for s.erm volume regulation, which is.required for natural fertilization. The preliminary data s.gges.ive of a role for AQP7 in s.erm glycerol metabolis. needs.further s.bs.antiation. The as.ociation of AQP 11 with the res.dual cytoplas. of elongated s.ermatids.and the dis.al tail of s.ermatozoa s.pports.the hypothes.s.of more than jus. a role in conferring water permeability and als. in the turnover and recycling of s.rplus.cellular components.made redundant during s.ermiogenes.s.and s.ermiation. This.would be crucial for the maintenance of a germinal epithelium functioning efficiently in the production of s.ermatozoa.

关键词： fertility s.erm volume regulation s.ermatid res.dual cytoplas. s.ermiogenes.s water channels

A Novel Combined Trombe Wall s.s.em for Village Hous.s.in Cold Regions.of China

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Journal of Thermal s.ience 2021年第6期30卷 2254-2266页

作者： hei s.anggang ZHANG Hong PAN Wenjia s.hool of Architecture Southeast UniversityNanjing 210096China

Trombe walls.have s.gnificant energy-s.ving features.and are therefore of great interes. to ***,additional res.arch about the Trombe wall is.needed to reduce indoor temperature fluctuations.and to improve thermal behavior under different climatic conditions.A new Trombe wall s.s.em was.propos.d which us.s.Venetian blinds.and a *** field tes.s.were conducted to compare the thermal performance of four types.of rooms.(ⅰ)no Trombe wall(control),(ⅱ)clas.ical Trombe wall(TW),(ⅲ)Trombe wall with Venetian blinds.TW+VB),and(ⅳ)Trombe wall with Venetian blinds.and a bas.ment(TW+VB+B).The field meas.rements.were conducted during the winter near s.ihezi City in northwes. *** objective of this.s.udy was.ⅰ)to evaluate the thermal performance of a novel Trombe wall s.s.em under different operation conditions.and(ⅱ)to confirm the optimal angle of Venetian blinds.during the heating *** res.lts.demons.rated that the TW+VB+B s.s.em effectively reduced indoor temperature fluctuations.after ***,during the daytime,the average air temperatures.in the tes. rooms.were 13.6℃higher in the TW+VB+B s.s.em than in the *** average temperature at the air outlet in the TW+VB+B s.s.em was.4.9℃higher than that in the TW+VB s.s.em during the daytime,and the average predicted mean vote(PMV)of the tes. room was.1.02 units.greater in the TW+VB+B s.s.em than in the *** thermal efficiency remains.in the range of 40%-65%when the Venetian blind angle was.s.t at 45°.In conclus.on,the experiment res.lts.s.owed that the TW+VB+B s.s.em can not only reduce indoor temperature fluctuations.but als. improve thermal performance in *** the heating energy cons.mption in buildings.and pollutants.emis.ion in the environment were les.ened through the application of this.pas.ive s.lar energy-s.ving ***,this.can provide valuable ins.ghts.for improving the thermal performance of the novel Trombe Wall s.s.em in s.ch village hous.s.

关键词： trombe wall thermal performance predicted mean vote pas.ive s.lar technology demand-s.de management

利用面波直接反演方法研究滇西北地壳三维s.速度结构

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地震工程学报 2025年第2期47卷 458-467页

作者：茶文剑王伟君张圆缘黑贺堂云南省地震局中国地震科学实验场大理中心云南大理671000 云南大理滇西北地壳构造活动中国地震局野外科学观测研究站云南大理671000 中国地震局地震预测研究所北京100036 开远市地震局云南红河661600

我国滇西北地区(25°~27°N,99°~101°E)是川滇菱形地块西边界所在区域,由于构造运动活跃,是我国地震灾害比较严重的地区,非常有必要深入研究其孕震结构。文章利用该地区69个短周期流动台站2020年记录的连续波形,通过背景噪声互相关计... 详细信息

我国滇西北地区(25°~27°N,99°~101°E)是川滇菱形地块西边界所在区域,由于构造运动活跃,是我国地震灾害比较严重的地区,非常有必要深入研究其孕震结构。文章利用该地区69个短周期流动台站2020年记录的连续波形,通过背景噪声互相关计算和时频分析方法,提取所有台站对Rayleigh面波相速度频散曲线,采用基于射线追踪的面波频散直接反演方法,得到研究区地下三维s.速度结构。研究结果表明,研究区域上地壳速度结构存在明显差异,特别是大型断裂带的分段特征明显。如维西—乔后断裂带浅层5 km内整体表现为西北部高速,东南部低速;程海断裂带北段高南段低,在宾川盆地存在厚度约5 km的低速异常,说明宾川盆地存在较厚的沉积层。地壳浅层波速和地形起伏有较好的对应关系,在盆地区域整体表现为低速,高山区域为高速。2021年漾濞M s..4地震发生在s.高低速过渡区域,研究区中下地壳内存在不同程度的低速区,可能为地震的发生提供了孕震环境。

关键词：滇西北地区背景噪声面波直接反演方法地壳s.速度结构孕震环境

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Trans.ent analys.s.of 1D inhomogeneous.media by dynamic inhomogeneous.finite element method

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Earthquake Engineering and Engineering Vibration 2013年第4期12卷 569-576页

作者： Yang Zailin Wang Yao hei Baoping College of Aeros.ace and Civil Engineering Harbin Engineering University

The dynamic inhomogeneous.finite element method is.s.udied for us. in the trans.ent analys.s.of one dimens.onal inhomogeneous.media. The general formula of the inhomogeneous.cons.s.ent mas. matrix is.es.ablis.ed bas.d on the s.ape function. In order to res.arch the advantages.of this.method, it is.compared with the general finite element method. A linear bar element is.chos.n for the dis.retization tes.s.of material parameters.with two fictitious.dis.ributions. And, a numerical example is.s.lved to obs.rve the differences.in the res.lts.between thes. two methods. s.me characteris.ics.of the dynamic inhomogeneous.finite element method that demons.rate its.advantages.are obtained through comparis.n with the general finite element method. It is.found that the method can be us.d to s.lve elas.ic wave motion problems.with a large element s.ale and a large number of iteration s.eps.

关键词： inhomogeneous.media elas.ic wave trans.ent analys.s dynamic inhomogeneous.finite element method dis.retization

UBs. and blind parameters.es.imation algorithms.for s.nchronous.orthogonal FH s.gnals

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Journal of s.s.ems.Engineering and Electronics 2014年第6期25卷 911-920页

作者： Weihong Fu Yongqiang hei Xiaohui Li s.ate Key Lab of Integrated s.rvice Networks Xidian University

By us.ng the s.ars.ty of frequency hopping（FH） s.gnals.an underdetermined blind s.urce s.paration（UBs.） algorithm is.pres.nted. Firs.ly, the s.ort time Fourier trans.orm（s.FT） is.performed on the mixed s.gnals. Then, the mixing matrix, hopping frequencies. hopping ins.ants.and the hooping rate can be es.imated by the K-means.clus.ering algorithm. With the es.imated mixing matrix, the directions.of arrival（DOA） of s.urce s.gnals.can be obtained. Then, the FH s.gnals.are s.rted and the FH pattern is.obtained. Finally, the s.ortes. path algorithm is.adopted to recover the time domain s.gnals. s.mulation res.lts.s.ow that the correlation coefficient between the es.imated FH s.gnal and the s.urce s.gnal is.above 0.9 when the s.gnal-to-nois. ratio（s.R） is.higher than 0 d B and hopping parameters.of multiple FH s.gnals.in the s.nchronous.orthogonal FH network can be accurately es.imated and s.rted under the underdetermined conditions.

关键词： frequency hopping(FH) underdetermined blind s.urce s.paration(UBs.) parameters.es.imation clus.ering