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关键词

Z箍缩 2

3D支架平台 1

Dubins飞行器；坐标下降法；Dubins旅行商问题 1

FLTD型脉冲加速器 1

ICF 1

IFOC 1

Z干扰信道；非正则信号；和速率；帕累托边界；协方差；伪协方差 1

Z源逆变器 1

中国聚变工程实验堆 1

人为地形变化 1

人群计数；知识蒸馏；终身学习 1

优化 1

会话型推荐；自监督学习；图神经网络；目标自适应屏蔽 1

剪切应力 1

力矩反馈器 1

国际热核聚变实验堆 1

多标准决策；TODIM；TOPSIS；模糊数；Z数 1

大数据分析 1

局域潮汐基准面 1

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Treatment of soybean wastewater by a wild strain Rhodobacter sphaeroides and to produce protein under

Junguo HE, Guangming ZHANG, Haifeng LU,

《环境科学与工程前沿（英文）》 2010年第4卷第3期页码 334-339 doi: 10.1007/s11783-010-0239-5

摘要： The conventional treatment method of soybean wastewater is expensive and generates waste sludge that requires further handling. Purple nonsulfur bacteria (PNSB) wastewater treatment is a clean technology and can generate single cell protein while degrading pollutants. A wild strain of PNSB, Z08, was isolated from local soil and was used to treat soybean wastewater. To develop a cost-effective process, the work was performed under natural conditions without artificial light, aeration, nutrients addition, or pH and temperature adjustment. The results showed that the wild strain Z08 could grow well under natural conditions. The growth curve showed two quick-growth periods and a turning point. The Z08 treatment of soybean wastewater was zero order reaction and COD reduction was 96% after 10 d. The major byproducts of the process were C2-C5 organic acids, predominantly butyric acid. No alcohol was found in the effluent. The initial COD/bacterial-mass ratio (F/M) had a significant effect on soybean wastewater treatment efficiency. When the initial F/M was lower than 10 mg-COD/mg-bacteria, a sufficient amount of time to achieve 90% of COD reduction was only three days. The Z08 biomass yield was 0.28g·g, and the bacterial protein content was 52%.

关键词： purple nonsulfur bacteria (PNSB) Rhodobacter sphaeroides Z08 soybean wastewater cost effective

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Enhanced biohydrogen generation from organic wastewater containing N H 4 + by phototrophic bacteria Rhodobactersphaeroides AR-3

Guanghong ZHENG, Zhuhui KANG, Yifan QIAN, Lei WANG,

《环境科学与工程前沿（英文）》 2009年第3卷第4期页码 387-392 doi: 10.1007/s11783-009-0154-9

摘要： Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ. [J]. Front. Environ. Sci. Eng., 2016, 10(3): 513-521.Yongtao LV,Xuan CHEN,Lei WANG,Kai JU,Xiaoqiang CHEN,Rui MIAO,Xudong WANG. [J]. Front. Environ. Sci. Eng., 2016, 10(2): 390-398.Zulkifly JEMAAT,Josep Anton TORA,Albert BARTROLI,Julián CARRERA,Julio PEREZ. [J]. Front. Environ. Sci. Eng., 2015, 9(3): 528-533.Wei LI, Xiaowen DING, Min LIU, Yuewen GUO, Lei LIU. [J]. Front Envir Sci Eng, 2012, 6(6): 892-900.Guochen ZHENG, Jianzheng LI, Feng ZHAO, Liguo ZHANG, Li WEI, Qiaoying BAN, Yongsheng ZHAO. [J]. Front Envir Sci Eng, 2012, 6(1): 125-130.Hailong LIN, Weiguang LI, Changhong GUO, Sihang QU, Nanqi REN. [J]. Front Envir Sci Eng Chin, 2011, 5(4): 519-525.Daijun ZHANG, Cui BAI, Ting TANG, Qing YANG. [J]. Front Envir Sci Eng Chin, 2011, 5(2): 291-297.Yanhui ZHAN, Jianwei LIN, Yanling QIU, Naiyun GAO, Zhiliang ZHU. [J]. Front Envir Sci Eng Chin, 2011, 5(1): 65-75.Rongchang WANG, Xinmin ZHAN, Yalei ZHANG, Jianfu ZHAO. [J]. Front Envir Sci Eng Chin, 2011, 5(1): 48-56.Bo WANG, Wei WAN, Jianlong WANG, . [J]. Front.Environ.Sci.Eng., 2009, 3(4): 380-386.GUO Jinsong, YANG Guohong, FANG Fang, QIN Yu. [J]. Front.Environ.Sci.Eng., 2008, 2(4): 439-445.GENG Bing, ZHU Yanfang, JIN Zhaohui, LI Tielong, KANG Haiyan, WANG Shuaima. [J]. Front.Environ.Sci.Eng., 2007, 1(3): 357-361.WU Deyi, HU Zhanbo, WANG Xinze, HE Shengbing, KONG Hainan. [J]. Front.Environ.Sci.Eng., 2007, 1(2): 213-220.XU Zhengyong, YANG Zhaohui, ZENG Guangming, XIAO Yong, DENG Jiuhua. [J]. Front.Environ.Sci.Eng., 2007, 1(1): 43-48.

关键词： ammonium anoxygenic phototrophic bacterium biohydrogen glutamine auxotrophic tofu wastewater

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Bioproduction of D -psicose using permeabilized cells of newly isolated Rhodobacter sphaeroides SK011

Longtao ZHANG, Bo JIANG, Wanmeng MU, Tao ZHANG,

《化学科学与工程前沿（英文）》 2009年第3卷第4期页码 393-398 doi: 10.1007/s11705-009-0252-z

摘要： -psicose exits in an extremely small amount in nature and is difficult to be chemically synthesized. Only three bacteria have been used in the biotransformation of -psicose from -fructose. In this paper, another bacterium which could convert -fructose to -psicose was isolated and identified as . The process parameters of -psicose production using permeabilized cells of SK011 were optimized, including the permeabilization procedure: 0.1% (w/v) CTAB, 10min, and reaction conditions: cell concentration, 30g dry cell wt/L; concentration of substrate, 50g/L; 40°C, pH 9.0; reaction time, 8 h. Under the optimized conditions, the permeabilized cells produced approximately 6.5g/L -psicose with a -psicose productivity of 0.82g·L·h. This is the first report of bioproduction of -psicose using permeabilized cells of .

关键词： reaction permeabilized substrate bacterium process

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robot Project supported by the National High-Tech R&D Program (863) of China (No. 2009AA04Z220ZR2015QZ08)

Feng-yu ZHOU,Xian-feng YUAN,Yang YANG,Zhi-fei JIANG,Chen-lei ZHOU

《信息与电子工程前沿（英文）》 2016年第17卷第4期页码 365-374 doi: 10.1631/FITEE.1500272

摘要： To overcome the shortcomings of existing robot localization sensors, such as low accuracy and poor robustness, a high precision visual localization system based on infrared-reflective artificial markers is designed and illustrated in detail in this paper. First, the hardware system of the localization sensor is developed. Secondly, we design a novel kind of infrared-reflective artificial marker whose characteristics can be extracted by the acquisition and processing of the infrared image. In addition, a confidence calculation method for marker identification is proposed to obtain the probabilistic localization results. Finally, the autonomous localization of the robot is achieved by calculating the relative pose relation between the robot and the artificial marker based on the perspective-3-point (P3P) visual localization algorithm. Numerous experiments and practical applications show that the designed localization sensor system is immune to the interferences of the illumination and observation angle changes. The precision of the sensor is ±1.94 cm for position localization and ±1.64? for angle localization. Therefore, it satisfies perfectly the requirements of localization precision for an indoor mobile robot.

关键词： Mobile robot Localization sensor Visual localization Infrared-reflective marker Embedded system

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Z源逆变器在异步电动机中的应用

朱红,祝龙记,夏若飞

《中国工程科学》 2014年第16卷第3期页码 86-91

摘要：本文采用IFOC技术来控制异步电机的速度大小，并使用Z源逆变器，即在逆变器主电路前加上一对阻抗（LC）网络，通过控制直通占空比，可以实现升/降压功能、提高异步电机的效率。

关键词： IFOC 异步电机 Z源逆变器

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Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

WANG, R.Z. WANG

《能源前沿（英文）》 2017年第11卷第4期页码 493-502 doi: 10.1007/s11708-017-0510-6

摘要： In this paper, the simulation approach and exergy analysis of multi-stage compression high temperature heat pump (HTHP) systems with R1234ze(Z) working fluid are conducted. Both the single-stage and multi-stage compression cycles are analyzed to compare the system performance with 120°C pressurized hot water supply based upon waste heat recovery. The exergy destruction ratios of each component for different stage compression systems are compared. The results show that the exergy loss ratios of the compressor are bigger than that of the evaporator and the condenser for the single-stage compression system. The multi-stage compression system has better energy and exergy efficiencies with the increase of compression stage number. Compared with the single-stage compression system, the coefficient of performance (COP) improvements of the two-stage and three-stage compression system are 9.1% and 14.6%, respectively. When the waste heat source temperature is 60°C, the exergy efficiencies increase about 6.9% and 11.8% for the two-stage and three-stage compression system respectively.

关键词： multi-stage compression high temperature heat pump heat recovery exergy destruction R1234ze(Z) working fluid

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A convolutional neural network based approach to sea clutter suppression for small boat detection

Guan-qing Li, Zhi-yong Song, Qiang Fu,liguanqing09@nudt.edu.cn,songzhiyong08@nudt.edu.cn

《信息与电子工程前沿（英文）》 2020年第21卷第10期页码 1413-1534 doi: 10.1631/FITEE.1900523

摘要： Current methods for radar target detection usually work on the basis of high signal-to-clutter ratios. In this paper we propose a novel convolutional neural network based dual-activated clutter suppression algorithm, to solve the problem caused by low signal-to-clutter ratios in actual situations on the sea surface. Dual activation has two steps. First, we multiply the activated weights of the last dense layer with the activated feature maps from the upsample layer. Through this, we can obtain the s (CAMs), which correspond to the positive region of the sea clutter. Second, we obtain the suppression coefficients by mapping the CAM inversely to the sea clutter spectrum. Then, we obtain the activated range-Doppler maps by multiplying the coefficients with the raw range-Doppler maps. In addition, we propose a sampling-based data augmentation method and an effective multiclass coding method to improve the prediction accuracy. Measurement on real datasets verified the effectiveness of the proposed method.

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基于Z数的TODIM与TOPSIS方法 None

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

《信息与电子工程前沿（英文）》 2019年第20卷第2期页码 283-291 doi: 10.1631/FITEE.1700434

摘要：提出一种针对多标准决策问题处理Z数的方法。使用模糊数A和B的有序对Z=(A, B)定义Z数，其中A是兴趣变量的语言值，B是A的概率测度语言值。将Z数转化为模糊数，Z-TODIM和Z-TOPSIS分别是模糊TODIM和模糊TOPSIS的直接扩展。将提出的方法应用于两个案例并与使用精确数的标准方法比较，结果证明其可行。

关键词：多标准决策；TODIM；TOPSIS；模糊数；Z数

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快Z-箍缩——有前景的聚变能源新途径

彭先觉,华欣生

《中国工程科学》 2008年第10卷第1期页码 47-53

摘要：

简要介绍了快Z-箍缩的基本概念；综述了快Z-箍缩等离子体研究及其作为高能密度物理与惯性约束聚变（ICF），尤其作为低成本聚变能源研究的最新进展；探讨了快Z-箍缩驱动ICF作为聚变能源可能遇到的技术问题及应用前景。

关键词：快Z-箍缩内爆高能密度物理惯性约束聚变聚变能源

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Z干扰信道下非正则信号的最佳设计策略 Article

Dan LI, Shan WANG, Fang-lin GU

《信息与电子工程前沿（英文）》 2017年第18卷第11期页码 1900-1912 doi: 10.1631/FITEE.1700030

摘要：本文提出一种用于在干扰被视为加性高斯噪声的假设下在Z干扰信道（z-interference channel, Z-IC）上实现非正则高斯信号（IGS）的Pareto边界（可实现速率区域的边界）。

关键词： Z干扰信道；非正则信号；和速率；帕累托边界；协方差；伪协方差

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Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Z. NASER

《结构与土木工程前沿（英文）》 2021年第15卷第1期页码 46-60 doi: 10.1007/s11709-020-0676-6

摘要： This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnels. The magnitude of the fire problem is illustrated, and the recent increase in fire problems in bridges and tunnels is highlighted. Recent research undertaken to address fire problems in transportation structures is reviewed, as well as critical factors governing the performance of those structures. Furthermore, key strategies recommended for mitigating fire hazards in bridges and tunnels are presented, and their applicability to practical situations is demonstrated through a practical case study. Furthermore, research needs and emerging trends for enhancing the “state-of-the-art” in this area are discussed.

关键词： fire hazard bridges tunnels fire resistance mitigation strategies transportation infrastructure

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硅微z轴谐振陀螺仪负电刚度效应分析及实验验证

夏敦柱,周百令,王寿荣

《中国工程科学》 2007年第9卷第8期页码 66-68

摘要：

介绍了在开环工作状态下硅微z轴谐振陀螺仪由于加工工艺缺陷所导致的误差机理。通过对硅微z轴陀螺仪敏感模态的反馈力与谐振频率的关系分析，间接得出了在敏感方向上电负刚度与力矩器所施电压的内在联系，并在实验上进一步验证电刚度效应。这将为下一步闭环控制方案的设计奠定重要基础。

关键词：硅微z轴陀螺仪负电刚度力矩反馈器微机电系统

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直接驱动Z箍缩的FLTD型脉冲功率源的发展

孙凤举,邱爱慈,曾正中,曾江涛,丛培天

《中国工程科学》 2009年第11卷第11期页码 56-63

摘要：

介绍了快直线型变压器（FLTD）脉冲源的技术特点；概述了美国圣地亚国家实验室与俄罗斯强流电子学研究所合作研制的FLTD－Z模块的新进展，基于FLTD拟重复频率运行的针对聚变能源（IFE）应用的原理性样机Z－POP装置，以及下一代惯性约束核聚变（ICF）和IFE用的指标为6 MV,60 MA/90 MA和100 ns FLTD型直接驱动脉冲源的概念设想

关键词：快Z箍缩直接驱动 FLTD型脉冲加速器高功率脉冲加速器概念设计

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Z-scheme CdS/WO on a carbon cloth enabling effective hydrogen evolution

《能源前沿（英文）》 2021年第15卷第3期页码 678-686 doi: 10.1007/s11708-021-0768-6

摘要： Photocatalytic water splitting for hydrogen (H₂) generation is a potential strategy to solve the problem of energy crisis and environmental deterioration. However, powder-like photocatalysts are difficult to recycle, and the agglomeration of particles would affect the photocatalytic activity. Herein, a direct Z-scheme CdS/WO₃ composite photocatalyst was fabricated based on carbon cloth through a two-step process. With the support of carbon cloth, photocatalysts tend to grow uniformly for further applications. The experimental results showed that the H₂ yield of adding one piece of CdS/WO₃ composite material was 17.28 μmol/h, which was 5.5 times as compared to that of pure CdS-loaded carbon cloth material. A cycle experiment was conducted to verify the stability of the as-prepared material and the result demonstrated that the H₂ generation performance of CdS/WO₃ decreased slightly after 3 cycles. This work provides new ideas for the development of recyclable photocatalysts and has a positive significance for practical applications.

关键词： photocatalysis CdS/WO₃ carbon cloth Z-scheme hydrogen evolution

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ZnFe₂O₄/BiVO₄ Z-scheme heterojunction for efficient visible-light photocatalytic

《化学科学与工程前沿（英文）》 2023年第17卷第11期页码 1728-1740 doi: 10.1007/s11705-023-2322-z

摘要： A novel Z-scheme ZnFe₂O₄/BiVO₄ heterojunction photocatalyst was successfully synthesized using a convenient solvothermal method and applied in the visible light photocatalytic degradation of ciprofloxacin, which is a typical antibiotic contaminant in wastewater. The heterostructure of as-synthesized catalysts was confirmed using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy characterizations. Compared with the single-phase counterparts, ZnFe₂O₄/BiVO₄ demonstrated considerably enhanced photogenerated charge separation efficiencies because of the Z-scheme transfer mechanism of electrons between the composite photocatalysts. Consequently, the 30% ZnFe₂O₄/BiVO₄ catalyst afforded a degradation rate of up to 97% of 20 mg/L ciprofloxacin under 30 min of visible light irradiation with a total organic carbon removal rate of 50%, which is an excellent activity compared with ever reported BiVO₄-based catalysts. In addition, the liquid chromatography-mass spectrometry and quantitative structure-activity relationships model analyses demonstrated that the toxicity of the intermediates was lower than that of the parent ciprofloxacin. Moreover, the as-synthesized ZnFe₂O₄/BiVO₄ heterojunctions were quite stable and could be reused at least four times. This study thus provides a promising Z-scheme heterojunction photocatalyst for the efficient removal and detoxication of antibiotic pollutants from wastewater.

关键词： ZnFe₂O₄/BiVO₄ Z-scheme heterojunction photocatalytic degradation ciprofloxacin