检索结果-南通市图书馆

Ice lithography for 3D nanofabrication

Science Bulletin 2019年第12期64卷 865-871页

作者： Ding Zhao Anpan Han min qiu National Centre for Nano Fabrication and Characterization Technical University of DenmarkKongens Lyngby2800Denmark Department of Mechanical Engineering Technical University of DenmarkKongens Lyngby2800Denmark Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake UniversityHangzhou 310024China Institute of Advanced Technology Westlake Institute for Advanced StudyHangzhou 310024China

Nanotechnology and nanoscience are enabled by nanofabrication. Electron-beam lithography, which makes 2 D patterns down to a few nanometers, is one of the fundamental pillars of ***, significant progress in 3 D electron-beam-based nanofabrication has been made, such as the emerging ice lithography technology, in which ice thin-films are patterned by a focused electronbeam. Here, we review the history and progress of ice lithography, and focus on its applications in efficient 3 D nanofabrication and additive manufacturing or nanoscale 3 D printing. The finest linewidth made using frozen octane is below 5 nm, and nanostructures can be fabricated in selected areas on non-planar surfaces such as freely suspended nanotubes or nanowires. As developing custom instruments is required to advance this emerging technology, we discuss the evolution of ice lithography instruments and highlight major instrumentation advances. Finally, we present the perspectives of 3 D printing of functional materials using organic ices. We believe that we barely scratched the surface of this new and exciting research area, and we hope that this review will stimulate cutting-edge and interdisciplinary research that exploits the undiscovered potentials of ice lithography for 3 D photonics, electronics and 3 D nanodevices for biology and medicine.

关键词： Nanotechnology Nanofabrication Electron-beam lithography Ice lithography 3D nanofabrication Additive manufacturing Organic ice

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

Scheme for Remote Implementation of Partially Unknown Quantum Operation of Two Qubits in Cavity QED

引用

Communications in Theoretical Physics 2008年第11期50卷 1233-1236页

作者： qiu Liang WANG An-min Quantum Theory Group Department of Modern Physics University of Science and Technology of China Hefei 230026China

By constructing the recovery operations of the protocol of remote implementation of partially unknownquantum operation of two qubits[An-min Wang:***.A 74(2006)032317]with two-qubit Cnot gate and singlequbit logic gates,we present a scheme to implement it in cavity ***-lived Rydberg atoms are used as qubits,and the interaction between the atoms and the field of cavity is a nonresonant ***,we analyze the experimentalfeasibility of this scheme.

关键词： remote implementation cavity QED partially unknown quantum operation

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

Surface plasmons interference nanogratings:wafer-scale laser direct structuring in seconds

引用

Light(Science & Applications) 2022年第7期11卷 1607-1614页

作者： liao Geng Wei Yan Liping Shi min qiu Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake University18 Shilongshan RoadHangzhou 310024 Zhejiang ProvinceChina Institute of Advanced Technology Westlake Institute for Advanced Study18 Shilongshan RoadHangzhou 310024 Zhejiang ProvinceChina

It is always a great challenge to bridge the nano-and macro-worlds in nanoscience,for instance,manufacturing uniform nanogratings on a whole wafer in seconds instead of hours even ***,we demonstrate a single-step while extremely high-throughput femtosecond laser scanning technique to obtain wafer-scale,highly regular nanogratings on semiconductor-on-metal thin *** technique takes advantage of long-range surface plasmons-laser interference,which is regulated by a self-initiated *** controlling the scanning speed,two types of nanogratings are readily manufactured,which are produced by either oxidation or *** achieve a record manufacturing speed(>1 cm^(2)s^(-1)),with tunable periodicity of∧<1μ*** fractional variation of their periodicity is evaluated to be as low as△∧/∧≈0.5%.Furthermore,by utilizing the semiconductor-on-metal film-endowed interference effects,an extremely high energy efficiency is achieved via suppressing light reflection during femtosecond laser *** the fabricated nanogratings exhibit multi-functionality,we exemplify their practical applications in highly sensitive refractive index sensing,vivid structural colors,and durable superhydrophilicity.

关键词： utilizing wafer refractive

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

Distribution of radium-224 in the western Arctic Ocean

引用

Acta Oceanologica Sinica 2005年第6期24卷 109-116页

作者： qiu Yusheng CHEN min LI Yanping Department of Oceanography Xiamen University Xiamen 361005 China State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China Department of Oceanography Xiamen University Xiamen 361005 China

Radium-224 activities in the western Arctic Ocean were measured viaship-board ^(220)Rn emanation technique during the Second Chinese National Arctic Expedition. Theresults showed that the ^(224)Ra activities in the study areas ranged from being less than 0.08 to3.58 Bq/m^3, with an average of 0.23 Bq/m^3. The low ^(224)Ra concentration in the surface water wasattributed to the influence of sea ice melted water. The horizontal distribution of surface^(224)Ra in the western Arctic Ocean showed a high ^(224)Ra characteristics occurred along the slopearound 160°W, providing evidence for the importance of ice-rafted sediments to controlling thedistribution of radium isotopes in the Arctic Ocean. Mostly, ^(224)Ra concentrations increased withthe depth in the shelf region and reached a maximum at 75 m at the central Canada Basin, whichfurther confirms the importance of the transport of shelf bottom water to maintaining the upperhalocline layer in the Canada Basin.

关键词： ^(224)Ra distribution western arctic ocean

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

Correlation Study on Sweetness of Amino Acid with Different Configurations and Quantum Chemical Parameters

引用

Chinese Journal of Structural Chemistry 2006年第5期25卷 589-593页

作者： LIJun-Ling GU Jun qiu Guang-min College of Chemistry and Chemical Engineering China Universitry of Petroleum Dongying Shandong 257061 China College of Petroleum Engineering China University of Petroleum Dongying Shandong 257061 China

Quantum chemical parameters of 10 amino acids with D- and L-configurations were firstly calculated with semi-empirical AM1 method. Furthermore, the relationship between molecular structures of D-, L-amino acids and their sweetness were observed. The results show that upon different configurations of amino acids, the sweetness is relative with their formation heat, dipole moment, energy gap of frontier orbital and other parameters. The formation heats of the same amino acids possessing D- and L-configurations are different except glycine. The algebraic value of D-amino acid is generally larger than that of corresponding L-configuration with only one except of tyrosine. The dipole moment of D-amino acid is generally larger than that of corresponding L-amino acid except tyrosine and lysine. The lowest unoccupied orbital energy （ELUMO） of D-amino acid is higher than that of corresponding L-configuration except phenylalanine. △E of D-amino acid is larger than that of L-amino acid except histidine, phenylalanine and lysine. The larger gap will have advantage for its matching with frontier orbital energy of human protein acceptor, which strengthens the interaction between D-amino acid and sweet taste acceptor. Besides, the changing rules of these parameters are generally identical.

关键词： amino acid sweetness AMI semi-empirical method quantum chemical parameter

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

Plasmonic metafibers electro-optic modulators

引用

Light(Science & Applications) 2023年第9期12卷 1893-1901页

作者： Lei Zhang Xinyu Sun Hongyan Yu Niping Deng Feng qiu Jiyong Wang min qiu College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 310027China Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake University18 Shilongshan RoadHangzhou 310024 ZhejiangChina Institute of Advanced Technology Westlake Institute for Advanced Study18 Shilongshan RoadHangzhou 310024 ZhejiangChina College of Optical Science and Engineering Zhejiang UniversityHangzhou 310027China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China ministry of Education Engineering Research Center of Smart Microsensors and Microsystems School of Electronics and InformationHangzhou Dianzi UniversityHangzhou 310018China

Digitalizing optical signals through electric driving signals,electro-optic modulators(EOMs)are one of the cardinal elements in modern optical *** of current EOM devices are targeting on-chip integrations,which routinely suffer from high coupling losses,complex optical alignments and single-band *** this study,we for the first time integrate a lumped EOM device on the endfaces of a single-mode optical fiber jumper for fast amplitude *** from ultrathin and high quality-factor plasmonic metasurfaces,nanofabrication-friendly and highly efficient EO polymers and coupling-free connections with fiber networks,our EOM is demonstrated to allow dual-band operations(telecom O band and S band)and high-speed modulations(~1 GHz at a bias voltage of±9 V).This work offers an avenue to‘plug-and-play’implementations of EO devices and ultracompact“all-in-fibers”optical systems for communications,imaging,sensing and many others.

关键词： fiber fibers operations

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

GUIDELESS SPATIAL COORDINATE MEASUREMENT TECHNOLOGY BASED ON CODING POLE

引用

Chinese Journal of Mechanical Engineering 2008年第1期21卷 87-90页

作者： ZHAO min qiu Zongming QU Jiamin LIU Hongzhao School of Mechanical Instrumental Engineering Xi＇an University of Technology Xi＇an 710048. China

A new method of guideless spatial coordinate measurement technology based on coding pole and vision measurement is proposed. Unequal spacing of bar code is adopted to pole, so that the code combination of pole image in measuring field is unique. Holographic characteristics of numeric coding pole are adopted to obtain pole pose and pole probe position by any section of bar code on the pole. Spatial coordinates of measuring points can be obtained by coordinate transform. The contradiction between high resolution and large visual field of image sensor is resolved, thereby providing a new concept for surface shape measurement of large objects with high precision. The measurement principles of the system are expounded and mathematic model is established. The measurement equation is evaluated by simulation experiments and the measurement precision is analyzed. Theoretical analysis and simulation experiments prove that this system is characterized by simple structure and wide measurement range. Therefore it can be used in the 3-dimentional coordinate measurement of large objects.

关键词： Coding pole Guideless Coordinate measurement Vision measurement

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

Non-Markovian Effects on Entanglement Dynamics of Three Qubits

引用

Communications in Theoretical Physics 2008年第11期50卷 1123-1128页

作者： ZHANG Zhu-Qiang WANG An-min qiu Liang Department of Modern Physics University of Science and Technology of China Hefei 230026 China

We investigate entanglement dynamics of three independent qubits each locally interacting with a zero-temperature non-Markovian *** effects of environment's amount of non-Markovianity or parameters in initialstates on the three-qubit entanglement dynamics are presented in *** is found that the entanglement of such asystem revives after a finite dark period when a proper degree of non-Markovian is present.A deep comparison to thatin two-qubit system is also made.

关键词： non-Markovian entanglement sudden death revival

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

Subwavelength-diameter silica wire for light in-coupling to silicon-based waveguide

引用

Chinese Optics Letters 2007年第10期5卷 577-579页

作者： Ziyang Zhang min qiu Ulf Andersson 童利民 Department of Microelectronics and Applied Physics Royal Institute of Technology (KTH) Electrum 229 164 40 Kista Sweden Center for Parallel Computers Royal Institute of Technology (KTH) 100 44 Stockholm Sweden Department of Optical Engineering Zhejiang University Hangzhou 310027

Coupling between subwavelength-diameter silica wires and silicon-based waveguides is studied using the parallel three-dimensional （3D） finite-different time-domain method. Conventional butt-coupling to a silica-substrated silicon wire waveguide gives above 40% transmission at the wavelength range from 1300 to 1750 nm with good robustness against axial misalignments. Slow light can be generated by counterdirectional coupling between a silica wire and a two-dimensional （2D） silicon photonic crystal slab waveguide. Through dispersion-band engineering, 82% transmission is achieved over a coupling distance of 50 lattice constants, The group velocity is estimated as 1/35 of the light speed in vacuum.

关键词： Photonic crystals Refractive index Silica Silicon Slow light Waveguides

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

Multi-objective optimization of high-sulfur natural gas purif ication plant

引用

Petroleum Science 2019年第6期16卷 1430-1441页

作者： Jian-Feng Shang Zhong-Li Ji min qiu Li-min Ma College of Mechanical and Transportation Engineering China University of PetroleumBeijing 102249China Beijing Key Laboratory of Process Fluid Filtration and Separation Beijing 102249China Natural Gas Processing Plant of Sinopec Zhongyuan Oilfi eld Branch Puyang 457061China

There exists large space to save energy of high-sulfur natural gas purification *** multi-objective optimization problem has been investigated to effectively reduce the total comprehensive energy consumption and further improve the production rate of purified gas.A steady-state simulation model of high-sulfur natural gas purification process has been set up by using *** key operating parameters of the purification process have been determined based on the analysis of comprehensive energy consumption *** solve the problem that the process model does not converge in some conditions,back-propagation(BP)neural network has been applied to substitute the simulation model to predict the relative parameters in the optimization *** uniform design method and the table U21(107)have been applied to design the experiment points for training and testing BP *** prediction accuracy can be achieved by using the BP *** sorting genetic algorithm-II has been developed to optimize the two objectives,and 100 Pareto optimal solutions have been *** optimal points have been selected and evaluated *** results demonstrate that the total comprehensive energy consumption is reduced by 13.4%and the production rate of purified gas is improved by 0.2%under the optimized operating conditions.

关键词： High-sulfur natural gas purifi cation plant Multi-objective optimization Process simulation model Thermodynamic analysis BP neural network Genetic algorithm

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：