检索结果-南通市图书馆

Scheme for Implementing Refined Deutsch-Jozsa Algorithm via Superconducing Qubits

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2008年第4期49卷 909-912页

作者： zheng xiao-hu YU Ben-Li ZHANG Gang CAO Zhuo-Liang Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education School of Physics and Material Science Anhui University Hefei 230039 China Department of Mathematics and Physics West Anhui University Lu＇an 237012 China

We propose a scheme of implementing the Deutsch-Jozsa algorithm based on superconducing charge qubits, which would be a key step to scale more complex quantum algorithms and very important for constructing a real quantum computer via superconducting charge qubits. The present scheme is simple but fairly efficient, and easily manipulated because arbitrary two-qubit can be selectively and effectively coupled by a common inductance. More manipulations can be carried out before decoherence sets in. The proposed scheme is in line with current technology.

关键词： Deutsch-Jozsa algorithm superconduction superconducting charge qubits

Teleportation for an Unknown Entangled State Without Any Joint Measurement via Josephson Charge Qubits

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2008年第5期49卷 1195-1198页

作者： LI Da-Chuang zheng xiao-hu DONG Ping CAO Zhuo-Liang Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education School of Physics＆ Material Science Anhui University Hefei 230039 China

An experimentally feasible scheme for teleportation of an arbitrary unknown entangled state is proposed. Our scheme is based on Josephson charge qubits, where we do not need any joint measurement. Moreover the successful probability and fidelity of the teleportation can both reach 1.0. The current scheme can be realized within the current experimental technology.

关键词： quantum teleportation Bell-state measurement Josephson charge qubits

在线全文

学校读者我要写书评

暂无评论

环氧基负性光刻胶加工微结构的试验研究

光电工程 2006年第11期33卷 36-39页

作者：郑晓虎淮阴工学院机械系

在正交试验的基础上，将BP神经网应用于负性光刻胶（SU-8）加工高分辨率和高深宽比微结构的工艺研究，建立了光刻图形质量与前烘时间、前烘温度、曝光量、后烘时间之间的预测模型，该模型采用三层前向网络，学习算法为梯度下降法。通过... 详细信息

在正交试验的基础上，将BP神经网应用于负性光刻胶（SU-8）加工高分辨率和高深宽比微结构的工艺研究，建立了光刻图形质量与前烘时间、前烘温度、曝光量、后烘时间之间的预测模型，该模型采用三层前向网络，学习算法为梯度下降法。通过实验，得出：前烘温度与前烘时间对光刻质量影响最大，对120～340μm厚的光刻胶，前烘温度取90℃，前烘时间50～100min时，图形的相对线宽差最小；最佳后烘时间（85～95℃）为30min；超声搅拌能缩短显影时间，改善图形质量。试验结果与网络预测结果吻合。结果表明，将BP神经网络应用于UV—LIGA技术中，可以优化光刻工艺。

关键词：光刻工艺 UVLIGA 预测模型优化

在线全文

学校读者我要写书评

暂无评论

一种谐振式微加速度计的设计

压电与声光 2006年第3期28卷 294-296页

作者：郑晓虎淮阴工学院机械系

提出一种基于谐振原理、电容检测的微型加速度计。通过外加加速度使质量块经杠杆将力放大施加到谐振器上,改变谐振梁上的轴向应力,从而改变谐振梁的振动频率。研究表明这种加速度计的测量范围达66 g。同时采用有限元法进行了仿真模拟,... 详细信息

提出一种基于谐振原理、电容检测的微型加速度计。通过外加加速度使质量块经杠杆将力放大施加到谐振器上,改变谐振梁上的轴向应力,从而改变谐振梁的振动频率。研究表明这种加速度计的测量范围达66 g。同时采用有限元法进行了仿真模拟,结果显示传感器灵敏度约18 Hz/g,工作模态固有频率为625.981 kHz。

关键词：微型电子机械系统(MEMS) 谐振加速度计仿真模拟

模糊神经网络在UV-LIGA工艺优化中的应用

在线全文

学校读者我要写书评

暂无评论

光学精密工程 2006年第1期14卷 139-144页

作者：郑晓虎朱荻江苏淮安223001 南京航空航天大学机电工程学院江苏南京210016 淮阴工学院机械系南京航空航天大学机电工程学院

将模糊神经网络理论和算法应用于负性光刻胶(SU-8)加工高分辨率和高深宽比微结构的工艺研究,在正交试验的基础上对网络进行训练,建立了光刻图形质量与前烘时间、前烘温度、曝光量、后烘时间之间的预测模型。该模型采用五层前向模糊神经... 详细信息

将模糊神经网络理论和算法应用于负性光刻胶(SU-8)加工高分辨率和高深宽比微结构的工艺研究,在正交试验的基础上对网络进行训练,建立了光刻图形质量与前烘时间、前烘温度、曝光量、后烘时间之间的预测模型。该模型采用五层前向模糊神经网络,学习算法为梯度下降法。进行了实验,实验结果表明,前烘温度与前烘时间对光刻质量影响最大。对120~340μm厚的光刻胶,前烘温度取95℃,前烘时间100 min时,图形的相对线宽差最小;超声搅拌能缩短显影时间,显著改善图形质量,试验结果与计算结果十分吻合。将模糊神经网络应用于UV-LIGA工艺中,能实现光刻加工微结构的工艺参数优化。

关键词：负性光刻胶 UV-LIGA 模糊神经网络工艺参数

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

金属微结构阵列的电铸成型

光学精密工程 2008年第3期16卷 473-477页

作者：郑晓虎朱荻淮阴工学院机械工程系江苏淮安223003 南京航空航天大学机电学院江苏南京210016

在分析微细电铸的电场与流场特性的基础上,深入研究了铸层厚度的不均匀现象及搅拌方式和电流密度对微细电铸质量的影响。由于高深宽比胶膜的存在,单一搅拌对电铸区域的影响只集中在微区的入口部分,扩散过程成为金属沉积的限制性因素;随... 详细信息

在分析微细电铸的电场与流场特性的基础上,深入研究了铸层厚度的不均匀现象及搅拌方式和电流密度对微细电铸质量的影响。由于高深宽比胶膜的存在,单一搅拌对电铸区域的影响只集中在微区的入口部分,扩散过程成为金属沉积的限制性因素;随着胶膜深宽比的增大,电场等势线弯曲的程度加大,导致电铸微区内金属离子传输能力不均匀。实验表明:微细电铸过程中,搅拌速度提高并不能改善金属沉积的传质条件,辅助超声的复合搅拌在相同条件下能提高金属沉积速度,减少铸层缺陷;最佳电流密度不宜超过0.9~1.0 A/dm2。基于该项技术,实现了高分辨率、侧壁陡直金属微结构的电铸成型。

关键词： UV-LIGA 微结构微细电铸仿真

Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao Peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Activation energy

Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第6期20卷 1816-1824页

作者： Jiantao Cui Yueru Shen zheng Song Dinggang Fan Bing hu Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina

Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular membrane. Rab5 has been reported to play an important role in the development of the zebrafish embryo;however, its role in axonal regeneration in the central nervous system remains unclear. In this study, we established a zebrafish Mauthner cell model of axonal injury using single-cell electroporation and two-photon axotomy techniques. We found that overexpression of Rab5 in single Mauthner cells promoted marked axonal regeneration and increased the number of intra-axonal transport vesicles. In contrast, treatment of zebrafish larvae with the Rab kinase inhibitor CID-1067700markedly inhibited axonal regeneration in Mauthner cells. We also found that Rab5 activated phosphatidylinositol 3-kinase(PI3K) during axonal repair of Mauthner cells and promoted the recovery of zebrafish locomotor function. Additionally, rapamycin, an inhibitor of the mechanistic target of rapamycin downstream of PI3K, markedly hindered axonal regeneration. These findings suggest that Rab5 promotes the axonal regeneration of injured zebrafish Mauthner cells by activating the PI3K signaling pathway.

关键词： axonal regeneration Mauthner cell nerve regeneration Rab5 zebrafish

Kerr介质中双模纠缠相干光与Bell态原子相互作用系统的原子偶极压缩

在线全文

学校读者我要写书评

暂无评论

物理学报 2007年第2期56卷 837-844页

作者：林继成郑小虎曹卓良南京晓庄学院物理系南京210017 安徽大学物理与材料科学学院合肥230039

运用全量子理论并结合数值计算方法,研究了Kerr介质腔中处于Bell态的两个全同二能级纠缠原子与双模纠缠相干光场相互作用系统的原子偶极压缩特性.讨论了双原子体系的初态、光场的平均光子数、双模纠缠相干光场的纠缠程度以及Kerr介质与... 详细信息

运用全量子理论并结合数值计算方法,研究了Kerr介质腔中处于Bell态的两个全同二能级纠缠原子与双模纠缠相干光场相互作用系统的原子偶极压缩特性.讨论了双原子体系的初态、光场的平均光子数、双模纠缠相干光场的纠缠程度以及Kerr介质与双模光场的耦合强度对原子偶极压缩特性的影响.结果表明:双原子体系的初态为β11〉时,不会出现偶极压缩效应;初态为β00〉,β01〉或β10〉时在一定条件下可能出现原子压缩效应,且此时原子压缩的特性与Kerr介质与双模光场的耦合强度、初始光场的平均光子数、双模纠缠相干光场的纠缠程度有关.

关键词：量子光学 Bell态双模纠缠相干光场 Kerr介质