检索结果-南通市图书馆

Flood-illuminated adaptive optics ophthalmoscope with a single curved relay mirror

Photonics Research 2013年第3期1卷 124-129页

作者： Ruixue Liu Yue Qi Xianliang Zheng Mingliang Xia Li Xuan State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchunJilin 130033China University of Chinese Academy of Sciences Beijing 100039China Jiangsu Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhouJiangsu 215163China

For decreasing light loss and diminishing the aberrations of the optical system,an open-loop adaptive optics(AO)system for retinal imaging in vivo is introduced.Taking advantage of the ability of young human eyes to accommodate,there was only one single curved mirror to make the pupil of the eye conjugate with the wavefront corrector and the wavefront sensor.A liquid crystal spatial light modulator(LC-SLM)was adopted as the wavefront corrector because the LC-SLM can be made in a small size to match the sensor.To reduce a pair of lenses or focusing mirrors,the wavefront corrector and sensor are positioned in the noncommon path.The system adopts open-loop control and the high-precision LC-SLM guarantees the effectiveness of the AO system.The designed field of view is 1°on the retina(about 300μm).The image quality was simulated with different mirror surface types,including circular,parabolic,and hyperbolic.A hyperbolic mirror with conic constant−1.07,which is close to−1,could best eliminate the aberrations.Theoretical analysis showed that the optical throughput of this system was at least 22.4%higher than that of a standard transmission AO system.In a practical experiment,a parabolic mirror was positioned in the optical path.Images of the cone photoreceptors and the capillary vessels were obtained successfully.This system simplifies the optical setup in comparison to the commonly used 4F systems while still guaranteeing the effectiveness of AO to correct the ocular aberrations.

关键词： mirror optics curved

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Delayed Detached Eddy Simulation of Subcritical Flow past Generic Side mirror

引用

Journal of Shanghai Jiaotong university(Science) 2019年第1期24卷 107-112页

作者：陈鑫李铭 State Key Laboratory of Automotive Simulation and Control Jilin University

In the present study, the subcritical flow past a generic side mirror on a base plane is investigated at the Reynolds number of 5.2 × 10~5 using delayed detached eddy simulation(DDES) turbulence model. Asides from the capability of capturing main features of the large recirculation vortex in the wake of the side mirror and the front horseshoe vortex, the accuracy of DDES estimation of recirculation length is significantly increased by over20%, compared to the detached eddy simulation(DES) estimation using the same grid. And DDES prediction of pressure coefficient at the trailing edge of the mirror is in good agreement with the experiments, which is more accurate than both DES and large eddy simulation(LES) results. The results verify the capacity of DDES turbulence model to solve the turbulent flow around the side mirror. This is a key foundation for possible future study of full simulation of external flow field of vehicle.

关键词： delayed detached eddy simulation drag recirculation length generic side mirror

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

To Secure a Safe and Effective Flight—An Interview with Dr.ZHANG Chen,PI of WXT mirror assembly

引用

Bulletin of the Chinese Academy of Sciences 2022年第1期36卷 16-20页

作者： ZHANG Chen SONG Jianlan WXT mirror assembly 不详

Editor’s note:Covering an unprecedentedly wide field of view(FoV)up to 3,600 square degrees,the Widefield X-ray Telescope(WXT)to fly aboard the Einstein Probe satellite will perform all-sky surveys for high-energy transients.What will make this possible is its special optical system powered by a technology called the Lobster-eye micro-pore optics(MPO).The development of this very important system is in the charge of Dr.ZHANG Chen,Principal Investigator of the WXT mirror assembly.He works as a representative for the science team in the engineering work to make sure the instrument is meeting the preset scientific requirements.How challenging is it to build this payload?How the development is going?Let’s hear what Dr.ZHANG would like to say on instrument calibration in a talk with BCAS staff reporter SONG Jianlan.

关键词： mirror instrument payload

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Luodian Bronze mirror:A Reflection of History

引用

China Weekly 2022年第8期 57-59页

作者： LU Weitao Zhang Jin 不详

Decorated bronze mirrors from the Tang Dynasty bore witness to the rise and fall of trade and governance,as well as ups and downs of the Silk Road,Famed Chinese Emperor Taizong,second emperor of the Tang Dynasty(618-907)who laid the foundations of the dynasty,has a meaningful statement about the success of governance,recorded in the Old Book of Tang,a history of the dynasty compiled in 945 after it had fallen.“When one uses a bronze mirror,one can adjust the attire.When one uses history as a mirror,one comprehends the rise and fall of a nation.When one uses a person as a mirror,a remonstrator,one sees the success and missteps.”

关键词： mirror statement meaningful

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Reflections and mirror effect of parametrically-excited solitons at a boundary

引用

Science China Mathematics 1995年第3期38卷 335-341页

作者：王新龙 Institute of Acoustics Nanjing University Nanjing 210093 China

Some of the up-to-date experimental results on the parametrically-excited solitons in arectangular trough of water are provided, including the periodical reflection of a soliton at an end wall of a trough, the collision dynamics of two solitons of like polarity and the existence of mirror effect at boundaries. Attempts are made to explain the observed phenomena and a conception of virtual solitons is proposed.

关键词： parametrically excited solitons attraction and repulsion reflections mirror effect virtual soliton.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reflections

引用

中学生数学 2024年第8期 F0003-F0003页

Hands-on Mini Lab Work with a partner.·Write your first name in capital letters on a sheet of paper.·Use the geomirror to trace the reflection of the letters in your name.·Write your last name.Draw the reflection o... 详细信息

关键词： partner mirror letter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Human embryo models: unveiling sophisticated self-organization of stem cells during post-implantation stages

引用

Signal Transduction and Targeted Therapy 2023年第12期8卷 5565-5567页

作者： Manqiang Lin Michael Sigal Department of Hepatology and Gastroenterology CharitéUniversitätsmedizin Berlin13353 BerlinGermany Berlin Institute for Medical Systems Biology(BIMSB) Max Delbrück Center for Molecular Medicine10115 BerlinGermany

In three recent articles published in Nature and Cell,Weatherbee et al.1,Pedroza et al.2 and Liu et al.3 have demonstrated how human pluripotent stem cells can be coaxed to self-organize into compartmentalized structures that mirror post-implantation embryos.Building on the successful establishment of stem cell-derived mouse embryo models ex utero,these models now shed light on human embryo development during the period between implantation and gastrulation,which has so far been challenging to investigate.

关键词： implantation Human mirror

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eight Reasons to Consider History as a mirror

引用

China Today 2023年第1期72卷 18-19页

作者： AUGUSTO SOTO 不详

Understanding the China-U.S. relations from a historical perspective.WHEN President Xi Jinping met his U.S. counterpart Joe Biden on the sidelines of the G20 Summit in Bali in November, 2022, he said, "History is the ... 详细信息

关键词： History mirror mirror

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Researchers Develop World’s Largest Silicon Carbide Aspheric mirror for Telescope Applications

引用

Bulletin of the Chinese Academy of Sciences 2022年第4期36卷 223-224页

作者： YAN Fusheng 不详

A team of researchers led by Dr.ZHANG Xuejun at the Changchun Institute of Optics,Fine Mechanics and Physics(CIOMP)of the Chinese Academy of Sciences has successfully created the world’s largest silicon carbide(SiC)aspheric mirror,measuring 4 meters in diameter.The achievement,which can potentially improve telescopes’imaging quality and detection capabilities,was published online in Light:Science&Applications on October 26.

关键词： Changchun mirror carbide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Makeup mirror Becoming the New Blue Ocean of Beauty Industry

引用

China Detergent & Cosmetics 2022年第1期7卷 17-18页

作者： Wang Junwei China Reserch Institute of Daily Chemical Industry China

Recently,AMIRO,a technology beauty care brand,announced that it has completed a C round financing of 100 million yuan,which received exclusive strategic investment from a top domestic fund,and Gaohu Capital is acting as its exclusive financial adviser.According to public information,AMIRO was founded in 2015 and created the“makeup mirror”category from scratch,which has occupied 57%of the market share of this category.This 100-million-yuan financing has attracted attention to the makeup mirror products.

关键词： mirror category occupied

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：