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End-to-end computational design for an EUV solar corona multispectral imager with stray light suppression

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Astronomical Techniques and Instruments 2024年第1期1卷 31-41页

作者： jinming gao Yue Sun Yinxu Bian Jilong Peng Qian Yu Cuifang Kuang Xiangzhao Wang Xu Liu Xiangqun Cui State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 310027China Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China Beijing Environmental Satellite Engineering Institute Beijing 100094China

An extreme ultraviolet solar corona multispectral imager can allow direct observation of high temperature coronal plasma,which is related to solar flares,coronal mass ejections and other significant coronal *** manuscript proposes a novel end-to-end computational design method for an extreme ultraviolet(EUV)solar corona multispectral imager operating at wavelengths near 100 nm,including a stray light suppression design and computational image *** suppress the strong stray light from the solar disk,an outer opto-mechanical structure is designed to protect the imaging component of the *** the low reflectivity(less than 70%)and strong-scattering(roughness)of existing extreme ultraviolet optical elements,the imaging component comprises only a primary mirror and a curved grating.A Lyot aperture is used to further suppress any residual stray ***,a deep learning computational imaging method is used to correct the individual multi-wavelength images from the original recorded multi-slit *** results and data,this can achieve a far-field angular resolution below 7",and spectral resolution below 0.05 *** field of view is±3 R_(☉)along the multi-slit moving direction,where R☉represents the radius of the solar *** ratio of the corona's stray light intensity to the solar center's irradiation intensity is less than 10-6 at the circle of 1.3 R_(☉).

关键词： EUV solar corona imager Curved grating Stray light suppression Computational multispectral imaging

A dual-route optical emission spectroscopy diagnostic with wide spectral range and high wavelength resolution on HL-2A tokamak

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Plasma Science and Technology 2024年第3期26卷 25-30页

作者：陈越高继昆龙婷聂林高金明马尧黄渊田文静刘延民朱晓东庄革钟武律许敏 School of Physical Sciences School of Nuclear Sciences and TechnologyUniversity of Science and Technology of ChinaHefei 230026People's Republic of China Southwestern Institute of Physics Chengdu 610041People's Republic of China Tsinghua University Beijing 100084People's Republic of China

A dual-route optical emission spectroscopy(D-OES)diagnostic is newly developed to monitor the optical emission from the X-point plasma region on the HL-2 A *** diagnostic is composed of an imaging system,a beam-splitting system for dual-route measurements,fiber bundles,a spectrometer system,and a control and acquisition *** route is used to obtain wide-spectral-range spectra,and the other route is used to acquire high-wavelengthresolution line *** spectral resolution of the wide-range spectrometers is 0.8 nm with a coverage of 800 nm(@200-1000 nm).The spectral resolution of the high-resolution spectrometer is 0.01 nm with a coverage of 6 nm(@200-660 nm).The spatial resolution of each route of D-OES is about 4 cm with 11 *** temporal resolution is 16 ms at maximum in the single-channel ***-range spectra(containing Balmer series and a Fulcher band)and highly resolved Ha line shapes are obtained by D-OES in the hydrogen glow discharge in the lab.D-OES measurements are carried out in the high-density deuterium experiments of *** electron density n_(e)and deuterium temperature T_(D) in the X-point multifaceted asymmetric radiation from the edge(MARFE)region are derived simultaneously by fitting the measured D_(a) *** density n_(e)is observed to increase from~8.7×10^(18)m^(-3)to~7.8×10^(19)m^(-3),and the temperature T_(D)drops from~14.4 eV to~2.3 eV after the onset of MARFE in the discharge#38260.

关键词： optical emission spectroscopy Balmer series tokamak

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复杂地质条件下小净距隧道施工力学效应研究

现代工程科技 2024年第2期3卷 77-80页

作者：高金明中铁十七局集团第五工程有限公司山西太原030032

小净距隧道施工过程中,如何保证中岩柱围岩的稳定是施工的一大难题。以某铁路隧道为研究背景,采用数值模拟方法研究了小净距隧道施工过程中围岩的变形、支护结构的应力、围岩的塑性区、对拉锚杆的受力情况,系统分析了隧道围岩、支护结... 详细信息

小净距隧道施工过程中,如何保证中岩柱围岩的稳定是施工的一大难题。以某铁路隧道为研究背景,采用数值模拟方法研究了小净距隧道施工过程中围岩的变形、支护结构的应力、围岩的塑性区、对拉锚杆的受力情况,系统分析了隧道围岩、支护结构变形及受力特点。研究结果表明,对中岩柱采用对拉锚杆及注浆的加固方式,能够保证中岩柱围岩的稳定性,确保隧道施工安全。

关键词：小净距隧道中岩柱围岩稳定性对拉锚杆

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黄河湿地漫滩区特殊地质桩基施工技术研究

现代工程科技 2024年第3期3卷 65-68页

作者：高金明中铁十七局集团第五工程有限公司山西太原030032

在黄河湿地漫滩区特殊地质条件下,桥梁桩基施工无法保证成孔质量。针对此问题,研究分析了桥址区的地质情况,以及钻孔过程容易塌孔、缩颈的原因。在钻孔时采用打设超长钢护筒、清孔采用除砂器等新技术、新工艺,解决了桩基成孔难题。结果... 详细信息

在黄河湿地漫滩区特殊地质条件下,桥梁桩基施工无法保证成孔质量。针对此问题,研究分析了桥址区的地质情况,以及钻孔过程容易塌孔、缩颈的原因。在钻孔时采用打设超长钢护筒、清孔采用除砂器等新技术、新工艺,解决了桩基成孔难题。结果表明,对于深厚淤泥砂土地层的桩基施工采用长护筒穿过淤泥层,能有效避免塌孔、缩颈问题,清孔过程增加除砂器,能较快地降低泥浆的含砂率,缩短清孔时间,减小孔底沉渣厚度,达到快速灌注水下混凝土的目的。对于类似地质条件下的桩基施工具有指导作用。

关键词：黄河漫滩区桩基施工技术

Deep learning virtual colorful lens-free on-chip microscopy

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Chinese Optics Letters 2020年第12期18卷 54-58页

作者： Hua Shen jinming gao School of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and TechnologyNanjing 210094China MIIT Key Laboratory of Advanced Solid Laser Nanjing University of Science and TechnologyNanjing 210094China Department of Material Science and Engineering University of Calif ornia Los AngelesLos AngelesCA 90095USA

Currently, it is generally known that lens-free holographic microscopy, which has no imaging lens, can realize a large field-of-view imaging with a low-cost setup. However, in order to obtain colorful images, traditional lensfree holographic microscopy should utilize at least three quasi-chromatic light sources of discrete wavelengths,such as red LED, green LED, and blue LED. Here, we present a virtual colorization by deep learning methods to transfer a gray lens-free microscopy image into a colorful image. Through pairs of images, i.e., grayscale lens-free microscopy images under green LED at 550 nm illumination and colorful bright-field microscopy images, a generative adversarial network(GAN) is trained, and its effectiveness of virtual colorization is proved by applying it to hematoxylin and eosin stained pathological tissue samples imaging. Our computational virtual colorization method might strengthen the monochromatic illumination lens-free microscopy in medical pathology applications and label staining biomedical research.

关键词： lens-free microscopy deep learning digital holography virtual colorization

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自动化监测系统在既有地铁线路监测中的应用

现代交通技术 2024年第3期21卷 87-91页

作者：高金铭李燕厉风黑龙江省建工集团有限责任公司哈尔滨150023 青岛百名消防科技有限公司青岛266609 苏交科集团股份有限公司南京211112

利用远程自动化监测系统实时监测哈尔滨地铁3号线太平桥站工程施工期间其毗邻既有地铁车站的结构变化情况。该系统由监测单元、控制通信单元、服务器管理单元和用户交互单元构成,在太平桥站施工期间对既有线结构变形进行了有效的监控,... 详细信息

利用远程自动化监测系统实时监测哈尔滨地铁3号线太平桥站工程施工期间其毗邻既有地铁车站的结构变化情况。该系统由监测单元、控制通信单元、服务器管理单元和用户交互单元构成,在太平桥站施工期间对既有线结构变形进行了有效的监控,保证了既有地铁线路的安全运营。

关键词：地铁施工既有地铁自动化监测

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基于“形神一体”观从心辨治失眠伴汗出异常

中医药临床杂志 2024年第6期36卷 1060-1064页

作者：高金铭吴佳凝董宏利南京中医药大学附属苏州市中医医院江苏苏州215000

心藏神,汗为心之液,心为形神统一之脏。失眠是临床上常见的慢性顽固性疾病,除了有入睡困难、寐浅易醒、多梦等症状外,其发作常伴汗出异常。心不藏神则失眠,心体失用则汗出异常,而二者往往病损相存,形神互扰,在现代医学角度上,其都与交... 详细信息

心藏神,汗为心之液,心为形神统一之脏。失眠是临床上常见的慢性顽固性疾病,除了有入睡困难、寐浅易醒、多梦等症状外,其发作常伴汗出异常。心不藏神则失眠,心体失用则汗出异常,而二者往往病损相存,形神互扰,在现代医学角度上,其都与交感神经功能的紊乱有关。治疗上立足于“形神一体”观,从心辨治,调形以虚实为纲,调神以情志为要,又不拘泥于心,多法并举,临床上取得了一定的疗效,并附一则验案以佐证,为“形神一体”理论的推广和应用提供新思路。

关键词：失眠汗出异常形神一体观心

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钨球对聚脲铝板结构的侵彻效应

黑龙江科技大学学报 2024年第3期34卷 387-393页

作者：高金明杨军何成龙中国兵器工业火炸药工程与安全技术研究院北京100053 北京理工大学机电学院北京100081 中北大学纳米功能复合材料山西省重点实验室太原030051

为研究软质聚脲涂覆对2024铝板抗破片冲击性能的增强效应,通过弹道试验加载球形破片撞击不同聚脲涂覆复合结构,分析喷涂聚脲厚度和相对位置对复合板的抗冲击性能影响,基于高速相机和数字图像方法分析复合板的动态破坏,采用CT技术检测局... 详细信息

为研究软质聚脲涂覆对2024铝板抗破片冲击性能的增强效应,通过弹道试验加载球形破片撞击不同聚脲涂覆复合结构,分析喷涂聚脲厚度和相对位置对复合板的抗冲击性能影响,基于高速相机和数字图像方法分析复合板的动态破坏,采用CT技术检测局部损伤和界面脱粘。结果表明:双面、背面涂覆聚脲均有效地提高铝板的抗冲击性能,低速度段到中速度段降低幅度大,超过50%,中速度段到高速度段降低幅度小,仅10%左右,涂覆方式对铝板抗冲击性能增强效应影响较小,且增强效应随着破片初速增大而降低;在527 m/s初速冲击下,10Al/2P和10Al/6P结构下破片速度衰减分别为75.5%和79.6%,随着涂层厚度的增加,复合材料板吸收更多的冲击动能;复合结构承受1000 m/s冲击载荷时,4和6 mm涂层厚度下速度衰减分别为20%和21.2%。

关键词：铝板抗侵性能聚脲涂层涂层断裂

Microbial Transformation of Pregnane-3β,16β,20-triol by Cunninghamella echinulata

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Chinese Journal of Chemistry 2013年第1期31卷 127-131页

作者： Chenru Yang Huafang Fan Yuan Yuan jinming gao Shaanxi Engineering Center of Bioresource Chemistry & Sustainable Utilization College of Science Northwest Adow University Yangling Shaanxi 712100 China

Microbial transformation of pregnane-3β,16β,20-triol （1） by Cunninghamella echinulata afforded four previ- ously unreported polyhydroxylated steroids, namely pregnane-3β,14a,16β,20-tetrol （2）, pregnane-3-oxo-14a, 16β,20-triol （3）, pregnane-3-oxo-7β,16β,20-triol （4）, and pregnane-3fl,7β,16β,20-tetrol （5）. The structures of these metabolites were established by means of spectroscopic analysis （1D and 2D NMR as well as HRESIMS analysis）.

关键词： pregnane-3β 16β,20-triol Cunninghamella echinulata biotransformation hydroxylation biocatalysis