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3D打印 1

CMOS；跨导提升技术；低噪声放大器；变压器；共栅级 1

Doherty功率放大器；输出功率回退；输出阻抗；网络相位 1

IEEE80216 1

K波段；高效率；宽带；氮化镓（GaN）；功率放大器 1

Mesh 1

主观意图 1

人工智能 1

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分布式存储系统；数据可靠性与可用性；异或类纠删码；单节点失效；数据恢复 1

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彩色医学图像；四元数；自适应水印；加密；分数阶变换；三维混沌逻辑映射（3D-CLM） 1

放大器；滤波–放大器集成；微带线；耦合矩阵 1

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Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense amplifier

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

《信息与电子工程前沿（英文）》 2015年 第16卷 第8期   页码 700-706 doi: 10.1631/FITEE.1400439

摘要： A multi-stage dual replica bit-line delay (MDRBD) technique is proposed for reducing access time by suppressing the sense-amplifier enable (SAE) timing variation of low voltage static random-access memory (SRAM) applications. Compared with the traditional technique, this strategy, using statistical theory, reduces the timing variation by using multi-stage ideas, meanwhile doubling the replica bit-line (RBL) capacitance and discharge path simultaneously in each stage. At a supply voltage of 0.6 V, the simulation results show that the standard deviations of the SAE timing and cycle time with the proposed technique are 69.2% and 47.2%, respectively, smaller than that with a conventional RBL delay technique in TSMC 65 nm CMOS technology (Taiwan Semiconductor Manufacturing Company, Taiwan).

关键词： Process-variation-robust     Sense amplifier (SA)     Replica bit-line (RBL) delay     Timing variation    

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Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

Maria Luísa Braga FARINHA, José Vieira de LEMOS, Emanuel MARANHA DAS NEVES

《结构与土木工程前沿（英文）》 2012年 第6卷 第1期   页码 35-43 doi: 10.1007/s11709-012-0142-1

摘要： This paper presents the application of a methodology which can be used to assess arch dam foundation stability, using the discrete element method (DEM) and the code 3DEC. A global three-dimensional model of a dam foundation was developed, in which some discontinuities were simulated and both the grout and drainage curtains were represented. The model, calibrated taking into account recorded data, was used to carry out nonlinear mechanical analysis. The same model was employed to perform a hydraulic analysis, based on equivalent continuum concepts, which allowed the water pressure pattern within the foundation to be obtained. These water pressures were applied on discontinuities involved in the possible sliding mechanism along the dam/foundation interface, and the safety of the dam/foundation system was evaluated using a process of reduction of strength characteristics, with the aim of calculating the minimum safety factors that ensure stability. Results were compared with those obtained with the usual bi-linear uplift pressure distribution at the base of the dam, commonly used in concrete dam design. The relevance of carrying out hydraulic analysis in arch dam foundation failure studies is highlighted.

关键词： concrete dams     rock foundations     hydromechanical behavior     failure analysis    

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A simple multi-wave algorithm for the uncapacitated facility location problem

Fred GLOVER, Saïd HANAFI, Oualid GUEMRI, Igor CREVITS

《工程管理前沿（英文）》 2018年 第5卷 第4期   页码 451-465 doi: 10.15302/J-FEM-2018038

摘要：

The multi-wave algorithm (Glover, 2016) integrates tabu search and strategic oscillation utilizing repeated waves (nested iterations) of constructive search or neighborhood search. We propose a simple multi-wave algorithm for solving the Uncapacitated Facility Location Problem (UFLP) to minimize the combined costs of selecting facilities to be opened and of assigning each customer to an opened facility in order to meet the customers’ demands. The objective is to minimize the overall cost including the costs of opening facilities and the costs of allocations. Our experimental tests on a standard set of benchmarks for this widely-studied class of problems show that our algorithm outperforms all previous methods.

关键词： discrete optimization     UFLP     multi-wave optimization     strategic oscillation     tabu search    

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高线性度U波段功率放大器设计：新型交调点分析方法 Research Article

崔杰,李佩佩,盛卫星

《信息与电子工程前沿（英文）》 2023年 第24卷 第1期   页码 176-186 doi: 10.1631/FITEE.2200082

摘要： 功率放大器的线性度决定了通信系统的信号发射质量与系统的发射效率。非线性失真会导致系统误码、带外辐射以及临近信道干扰，严重影响着通信系统的质量和可靠性。论文从毫米波功率放大器的三阶互调点入手，对电路的非线性进行补偿。介绍了基于格罗方德（GlobalFoundries） 45 nm绝缘体硅工艺的AB类线性毫米波功率放大器（PA）的分析、设计和测试情况。设计了三种工作在U波段的基于共源共栅和三管堆叠单元结构的单端和差分堆叠功率放大器。根据非线性分析和在片测试结果对比，发现基于三管堆叠单元的设计要优于基于共源共栅单元的设计。使用单端测量方法设计的差分功率放大器在44 GHz时实现了47.2%的峰值功率附加效率（PAE）和25.2 dBm的饱和输出功率（Psat）。该放大器在44 GHz至50 GHz的工作带宽内实现了Psat高于23 dBm和峰值PAE高于25%的性能。

关键词： 绝缘体硅；线性分析；毫米波；功率放大器    

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Synthesis of spherical parallel manipulator for dexterous medical task

Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL

《机械工程前沿（英文）》 2012年 第7卷 第2期   页码 150-162 doi: 10.1007/s11465-012-0325-4

摘要：

This paper deals with the design and the analysis of a spherical parallel manipulator (SPM) for a haptic minimally invasive surgery application. First the medical task was characterized with the help of a surgeon who performed a suture technique called anastomosis. A Vicon system was used to capture the motion of the surgeon, which yielded the volume swept by the tool during the anastomosis operation. The identified workspace can be represented by a cone with a half vertex angle of 26°. A multi objective optimization procedure based on genetic algorithms was then carried out to find the optimal SPM. Two criteria were considered, i.e., task workspace and mechanism dexterity. The optimized SPM was then analyzed to determine the error on the orientation of the end effector as a function of the manufacturing errors of the different links of the mechanism.

关键词： spherical parallel manipulator (SPM)     anastomosis     haptic     motion capture     optimization     workspace     dexterity     genetic algorithm     manufacturing errors    

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基于多跳双向认证的802.16Mesh网络SA管理机制

王兴建,胡爱群,黄玉划

《中国工程科学》 2006年 第8卷 第9期   页码 69-73

摘要： 针对Mesh中使用的单跳单向认证SA（安全关联）管理机制安全和效率上的缺陷，提出了一种和次优修正路由结合的多跳双向认证SA管理机制。

关键词： IEEE80216     Mesh     节点     多跳双向认证     修正路由    

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恒流海底观测网络的电能系统设计 Regular Article

Yan-hu Chen, Sa Xiao, De-jun Li,yanhuchen@zju.edu.cn,sxiao@zju.edu.cn,li_dejun@zju.edu.cn

《信息与电子工程前沿（英文）》 2019年 第20卷 第11期   页码 1505-1515 doi: 10.1631/FITEE.1800362

摘要： 恒流电能传输因其对短路故障有较高鲁棒性，被认为是海底观测网的理想选择。我们计划在中国东海建造一套恒流海底观测网系统。研究了用于科学实验的恒流海底观测网系统，并深入研究其电源系统及散热系统。恒流电源系统与传统恒压电源系统有很大不同，其电源转换技术具有一定挑战性。在电源转换系统中采用功率补偿电路，消耗多余功率，为用户提供恒定的48 V输出。提出一种过压保护以及对接线盒实时监视和控制的电源管理系统。考虑到电能系统工作在水下密封环境中，设计了一种新型接线盒散热结构，延长接线盒使用寿命。仿真和实验结果表明，该系统在长期工作中有较高效率和稳定性。

关键词： 海底观测网；电能变换；散热    

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Magnetic-porous microspheres with synergistic catalytic activity of small-sized gold nanoparticles and titania matrix

Kadriye Özlem Hamaloğlu, Ebru Sağ, Çiğdem Kip, Erhan Şenlik, Berna Saraço

《化学科学与工程前沿（英文）》 2019年 第13卷 第3期   页码 574-585 doi: 10.1007/s11705-019-1799-y

摘要： Fe O nanoparticles immobilized on porous titania in micron-size range were decorated with small-sized gold nanoparticles and used as a plasmonic catalyst for the reduction of 4-nitrophenol. Monodisperse-porous magnetic titania microspheres were synthesized with bimodal pore-size distribution by the sol-gel templating method. Small-sized gold nanoparticles obtained by the Martin method were attached onto the aminated form of the magnetic titania microspheres. A significant enhancement in the catalytic activity was observed using the gold nanoparticle-decorated magnetic titania microspheres compared to gold nanoparticle-decorated magnetic silica microspheres because of the synergistic effect between small-sized gold nanoparticles and titania. The synergistic effect for gold nanoparticle-attached magnetic titania microspheres could be explained by surface plasmon resonance-induced transfer of hot electrons from gold nanoparticles to the conduction band of titania. Using the proposed catalyst, 4-nitrophenol could be converted to 4-aminophenol in an aqueous solution within 0.5 min. The 4-nitrophenol reduction rates were 2.5–79.3 times higher than those obtained with similar plasmonic catalysts. The selection of micron-size, magnetic, and porous titania microspheres as a support material for the immobilization of small-sized gold nanoparticles provided a recoverable plasmonic catalyst with high reduction ability.

关键词： small-sized gold nanoparticles     magnetic titania microspheres     sol-gel template synthesis     plasmonic catalysis     4-nitrophenol    

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Polynomial robust observer implementation based passive synchronization of nonlinear fractional-order systems with structural disturbances

Ahmad Taher Azar, Hilaire Bertrand Fotsin, Soup Teoua Michael Ouagni,kouaneteoua@yahoo.fr,aazar@psu.edu.sa

《信息与电子工程前沿（英文）》 2020年 第21卷 第9期   页码 1267-1412 doi: 10.1631/FITEE.1900430

摘要： A robust polynomial observer is designed based on passive synchronization of a given class of r Colpitts (FOC) systems with mismatched uncertainties and disturbances. The primary objective of the proposed observer is to minimize the effects of unknown bounded disturbances on the estimation of errors. A more practicable output-feedback passive controller is proposed using an adaptive polynomial state observer. The distributed approach of a continuous frequency of the FOC is considered to analyze the stability of the observer. Then we derive some stringent conditions for the robust passive synchronization using Finsler’s lemma based on the fractional Lyapunov stability theory. It is shown that the proposed method not only guarantees the asymptotic stability of the controller but also allows the derived adaptation law to remove the uncertainties within the nonlinear plant’s dynamics. The entire system using passivity is implemented with details in PSpice to demonstrate the feasibility of the proposed control scheme. The results of this research are illustrated using computer simulations for the control problem of the r chaotic Colpitts system. The proposed approach depicts an efficient and systematic control procedure for a large class of nonlinear systems with the fractional derivative.
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一种扩展非对称Doherty功率放大器输出功率回退范围的新方法 Research Article

李明玉1,程小兵1,代志江1,钟康1,蔡天赋1,黄超意2

《信息与电子工程前沿（英文）》 2023年 第24卷 第3期   页码 470-479 doi: 10.1631/FITEE.2200250

摘要： 提出一种扩展Doherty功率放大器（DPA）输出功率回退（OPBO）范围的新方法。研究表明，可以通过峰值路功放的输出阻抗来调整和改变载波功率放大器输出匹配网络的相位，来扩大DPA的输出功率回退量。基于此理论，设计了一个工作频带为1.55—2.2 GHz（35%相对带宽）、具有大输出功率回退范围的高效率非对称DPA，通过这一例子来验证所提方法的有效性。实验结果表明，DPA工作频率为1.6—2.1 GHz。OPBO状态下测量效率范围为42.2%—52.1%，饱和状态下为47%—62.7%。OPBO范围为11.1—13.2 dB。

关键词： Doherty功率放大器；输出功率回退；输出阻抗；网络相位    

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Experimental Study on the Piezoelectric Prestage Driver of Electrohydraulic Servo Valves

CHENG Guang-ming, SHEN Chuan-liang, YANG Zhi-gang

《机械工程前沿（英文）》 2006年 第1卷 第1期   页码 56-59 doi: 10.1007/s11465-005-0017-4

摘要：

A piezoelectric actuated prestage driver of hydraulic servo valves for the low-frequency response of electrohydraulic servo valve electromagnetic prestage driver was presented. The new driver was driven by piezoelectric multilayer actuators. The displacement of a piezoelectric multilayer actuator was amplified by a flexure-hinged amplifier based on the principles of triangle amplification. Static and dynamic characteristics were tested on the model machine. The characteristics of good linearity, high resolution, and high-frequency response were approved. The natural frequency reached 1.201 kHz using finite element analysis, and the practice measurement result was 1 kHz.

关键词： flexure-hinged amplifier     kHz     amplification     high-frequency     electromagnetic    

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新一代建造质量安全管理发展研究

谢先启,邓利明,肖铭钊,骆汉宾,房瑞伟

《中国工程科学》 2021年 第23卷 第4期   页码 71-78 doi: 10.15302/J-SSCAE-2021.04.008

摘要：

建筑工程施工是一个复杂的“人–机–环”系统工程，施工过程中的质量安全管理仍面临诸多挑战，在新一代信息技术的支持下，数字孪生技术为解决工程质量安全问题、助力建筑业高质量发展、实现智能建造提供了新思路和技术手段。研究认为，在工程建造中，数字孪生技术的应用是以整个建造过程的可计算、可控制为目标，通过先进感知、计算等技术与方法应用，实现对实体工地的数字化管控。为此，基于数字孪生技术在建造质量管理中的应用需求，本文分析了数字孪生技术在工程质量安全管理方面的研究现状与存在问题，提出了涵盖面向工程质量安全控制的产品智能设计、工程质量安全状态智能感知与分析、数据驱动的工程质量安全控制、工程质量治理与动态监管的新一代工程智能质量安全管理与控制体系，从管理、技术、标准与规范3个方面提出了我国在工程建造中应用和发展数字孪生技术的对策建议。

关键词： 数字孪生     质量安全     智能建造     智能感知与分析    

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SA-RSR：一种适用于异或类纠删码分布式存储系统的数据读取最优恢复方法 Research Articles

张兴军1,梁宁静1,刘云飞1,张长江1,李洋2

《信息与电子工程前沿（英文）》 2022年 第23卷 第6期   页码 858-875 doi: 10.1631/FITEE.2100242

摘要： 本文提出一种随机搜索恢复算法，SA-RSR，该算法能加速异或类纠删码单节点故障恢复。SA-RSR利用模拟退火技术寻找读取和传输最少数据量的最优恢复机制，且该搜索过程可在多项式时间内完成。实验结果表明，与传统恢复方法相比，SA-RSR减少了30%的数据读取与传输量，提高了20.36%的数据恢复性能。

关键词： 分布式存储系统；数据可靠性与可用性；异或类纠删码；单节点失效；数据恢复    

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Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in smart power grids

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

《能源前沿（英文）》 2015年 第9卷 第2期   页码 148-161 doi: 10.1007/s11708-015-0344-z

摘要： Conventional power grids across the globe are reforming to smart power grids with cutting edge technologies in real time monitoring and control methods. Advanced real time monitoring is facilitated by incorporating synchrophasor measurement units such as phasor measurement units (PMUs) to the power grid monitoring system. Several physical and economic constraints limit the deployment of PMUs in smart power grids. This paper proposes a pragmatic multi-stage simulated annealing (PMSSA) methodology for finding the optimal locations in the smart power grid for installing PMUs in conjunction with existing conventional measurement units (CMUs) to achieve a complete observability of the grid. The proposed PMSSA is much faster than the conventional simulated annealing (SA) approach as it utilizes controlled uphill and downhill movements during various stages of optimization. Moreover, the method of integrating practical phasor measurement unit (PMU) placement conditions like PMU channel limits and redundant placement can be easily handled. The efficacy of the proposed methodology has been validated through simulation studies in IEEE standard bus systems and practical regional Indian power grids.

关键词： phasor measurement units (PMUs)     pragmatic PMU placement     simulated annealing (SA)     western region Indian power grid (WRIPG)    

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Multiple linear regression, artificial neural network, and fuzzy logic prediction of 28 days compressive strength of concrete

Faezehossadat KHADEMI,Mahmoud AKBARI,Sayed Mohammadmehdi JAMAL,Mehdi NIKOO

《结构与土木工程前沿（英文）》 2017年 第11卷 第1期   页码 90-99 doi: 10.1007/s11709-016-0363-9

摘要： Evaluating the in situ concrete compressive strength by means of cores cut from hardened concrete is acknowledged as the most ordinary method, however, it is very difficult to predict the compressive strength of concrete since it is affected by many factors such as different mix designs, methods of mixing, curing conditions, compaction, etc. In this paper, considering the experimental results, three different models of multiple linear regression model (MLR), artificial neural network (ANN), and adaptive neuro-fuzzy inference system (ANFIS) are established, trained, and tested within the Matlab programming environment for predicting the 28 days compressive strength of concrete with 173 different mix designs. Finally, these three models are compared with each other and resulted in the fact that ANN and ANFIS models enables us to reliably evaluate the compressive strength of concrete with different mix designs, however, multiple linear regression model is not feasible enough in this area because of nonlinear relationship between the concrete mix parameters. Finally, the sensitivity analysis (SA) for two different sets of parameters on the concrete compressive strength prediction are carried out.

关键词： concrete     28 days compressive strength     multiple linear regression     artificial neural network     ANFIS     sensitivity analysis (SA)    

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标题 作者 时间 类型 操作

Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense amplifier

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

期刊论文

Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

Maria Luísa Braga FARINHA, José Vieira de LEMOS, Emanuel MARANHA DAS NEVES

期刊论文

A simple multi-wave algorithm for the uncapacitated facility location problem

Fred GLOVER, Saïd HANAFI, Oualid GUEMRI, Igor CREVITS

期刊论文

高线性度U波段功率放大器设计：新型交调点分析方法

崔杰,李佩佩,盛卫星

期刊论文

Synthesis of spherical parallel manipulator for dexterous medical task

Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL

期刊论文

基于多跳双向认证的802.16Mesh网络SA管理机制

王兴建,胡爱群,黄玉划

期刊论文

恒流海底观测网络的电能系统设计

Yan-hu Chen, Sa Xiao, De-jun Li,yanhuchen@zju.edu.cn,sxiao@zju.edu.cn,li_dejun@zju.edu.cn

期刊论文

Magnetic-porous microspheres with synergistic catalytic activity of small-sized gold nanoparticles and titania matrix

Kadriye Özlem Hamaloğlu, Ebru Sağ, Çiğdem Kip, Erhan Şenlik, Berna Saraço

期刊论文

Polynomial robust observer implementation based passive synchronization of nonlinear fractional-order systems with structural disturbances

Ahmad Taher Azar, Hilaire Bertrand Fotsin, Soup Teoua Michael Ouagni,kouaneteoua@yahoo.fr,aazar@psu.edu.sa

期刊论文

一种扩展非对称Doherty功率放大器输出功率回退范围的新方法

李明玉1,程小兵1,代志江1,钟康1,蔡天赋1,黄超意2

期刊论文

Experimental Study on the Piezoelectric Prestage Driver of Electrohydraulic Servo Valves

CHENG Guang-ming, SHEN Chuan-liang, YANG Zhi-gang

期刊论文

新一代建造质量安全管理发展研究

谢先启,邓利明,肖铭钊,骆汉宾,房瑞伟

期刊论文

SA-RSR：一种适用于异或类纠删码分布式存储系统的数据读取最优恢复方法

张兴军1,梁宁静1,刘云飞1,张长江1,李洋2

期刊论文

Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in smart power grids

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

期刊论文

Multiple linear regression, artificial neural network, and fuzzy logic prediction of 28 days compressive strength of concrete

Faezehossadat KHADEMI,Mahmoud AKBARI,Sayed Mohammadmehdi JAMAL,Mehdi NIKOO

期刊论文