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Dual-Comb Ranging Review

Zebin Zhu, Guanhao Wu

Engineering 2018, Volume 4, Issue 6,   Pages 772-778 doi: 10.1016/j.eng.2018.10.002

Abstract:

Absolute distance measurement is a fundamental technique in mobile and large-scale dimensional metrology. Dual-comb ranging is emerging as a powerful tool that exploits phase resolution and frequency accuracy for high-precision and fast-rate distance measurement. Using two coherent frequency combs, dual-comb ranging allows time and phase response to be measured rapidly. It breaks through the limitations related to the responsive bandwidth, ambiguity range, and dynamic measurement characteristics of conventional ranging tools. This review introduces dual-comb ranging and summarizes the key techniques for realizing this ranging tool. As optical frequency comb technology progresses, dualcomb ranging shows promise for various professional applications.

Keywords： Ranging     Dual-comb interferometer     Phase noise     Timing jitter     Tight-locking     Post-correction    

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Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 115-122 doi: 10.15302/J-FEM-2016019

Abstract: Based on life cycle assessment method and the life cycle cost analysis, the optimal timing model of activeefficiency and corresponding operation mode of electro-mechanical products when recycling in the optimal timingTo validate the optimal timing model for electro-mechanical products active remanufacturing, a specific

Keywords： electro-mechanical products     active remanufacturing     optimal timing     reverse logistics     recycling mode    

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Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion

Xin LIANG, Jianyong ZHANG, Zhongzhao LI, Jiabo ZHANG, Zhen HUANG, Dong HAN

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 778-789 doi: 10.1007/s11708-020-0698-8

Abstract: experimentally and numerically studied the effects of fuel combination and intake valve opening (IVO) timingBy changing the gasoline fraction (GF) from 0.1 to 0.5 and the IVO timing from –15°CA ATDC to 35°CA ATDCThe results showed that both the increased GF and the retarded IVO timing delay the combustion phasingdecrease the peak heat release rate and the maximum average combustion temperature, whereas the IVO timingHC and CO emissions are decreased with reduced GF, advanced IVO timing and increased operational load

Keywords： homogeneous charge compression ignition     dual-fuel     n-heptane     gasoline     intake valve opening timing    

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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: impact of pavement preservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timingThe optimal timing calculated based on VOC is always earlier than the optimal timing calculated basedThere are considerable differences among the optimal timing of three preservation treatments.

Keywords： pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

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Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 194-201 doi: 10.1007/s11708-008-0035-0

Abstract: The results show that ignition timing has a significant influence on engine performance, combustion andThe interval between the end of fuel injection and ignition timing is a very important parameter formaximum rate of pressure rise and maximum heat release rate increase with the advancing of ignition timingIn the lean combustion condition, the exhaust CO does not vary much with ignition timing.At the same ignition timing, the exhaust HC decreases with hydrogen addition while the exhaust CO and
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Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense

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

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 700-706 doi: 10.1631/FITEE.1400439

Abstract: MDRBD) technique is proposed for reducing access time by suppressing the sense-amplifier enable (SAE) timingCompared with the traditional technique, this strategy, using statistical theory, reduces the timingAt a supply voltage of 0.6 V, the simulation results show that the standard deviations of the SAE timing

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

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Smart product design for automotive systems

A. Galip ULSOY

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 102-112 doi: 10.1007/s11465-019-0527-0

Abstract: Approaches to CSM design are presented, as well as applications of the method to a variable-cam-timing

Keywords： mechatronics     automotive control     co-design     component swapping modularity     active suspensions     variable camshaft timing    

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A global synthesis of the effectiveness and ecological impacts of management interventions for species

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1741-x

Abstract:

● Spartina abundance decreases over time by chemical control.

Keywords： Plant invasion     Biodiversity     Meta-analysis     Restoration     Salt marshes     Treatment timing    

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Electronic Detonator Initiation Technology: Research Progress and Development Strategies

Leng Zhendong , Fan Yong , Tu Shufang , Zhou Guisong , Guo Yiming

Strategic Study of CAE 2023, Volume 25, Issue 1,   Pages 142-154 doi: 10.15302/J-SSCAE-2023.07.001

Abstract:

Electronic detonators not only improve delay accuracy and the flexibility of initiation network design, but also realize the full lifecycle safety control of detonators from production to transportation, storage, and blasting operation. Therefore, electronic detonators are the key development direction of the civil explosive industry. This study summarized the development status of the electronic detonator initiation technology from the aspects of electronic detonators’ structure, application scenarios, intelligent level,blasting design theory, and failure mechanism. Our study indicates that electronic detonators will develop toward serialization and standardization, the electronic detonator initiation technology will develop toward more intelligence, the electronic detonator delay design theory will develop toward short delay, and the electronic detonator initiation network will develop toward a large scale. Based on engineering practices, we summarized the technological and application problems of electronic detonators, including frequent occurrence of misfire detonation, disconnection between detonation research and application, limited product types, and a defective standards system. Considering the demand of the civil explosive industry, we proposed the following key research directions: theories of precise delay-controlled blasting, integration of information technology with electronic detonator initiation, series of differentiated electronic detonator products, and standards systems of electronic detonators.

Keywords： electronic detonator     initiation technology     delay timing     design theory     standard system    

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Timing decision-making method of engine blades for predecisional remanufacturing based on reliability

Le CHEN, Xianlin WANG, Hua ZHANG, Xugang ZHANG, Binbin DAN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 412-421 doi: 10.1007/s11465-019-0551-0

Abstract: A timing decision-making method for predecisional remanufacturing is presented.From the perspective of reliability, this study analyzes the timing decision-making interval for predecisionalremanufacturing of mechanical products during the service period and constructs an optimal timing model

Keywords： predecisional remanufacturing     reliability     least squares support vector regression (LS-SVR)     game theory    

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CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING SYSTEMS: ANALYSIS WITH A TOY MODEL

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 457-464 doi: 10.15302/J-FASE-2022452

Abstract:

● A simple model was used to evaluate how increasing temporal variability in precipitation influences crop yields and nitrogen losses.

Keywords： crop yield     fertilizer timing     nitrogen loss     precipitation variability     toy model    

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Design of a hybrid magnetomotive force electromechanical valve actuator Article

Jawad ASLAM, Xing-hu LI, Faira Kanwal JANJUA

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 10,   Pages 1635-1643 doi: 10.1631/FITEE.1601215

Abstract: modified hybrid permanent magnet (PM)/electromagnet (EM) magnetomotive force actuator for a variable valve timing

Keywords： Permanent magnet     Electromagnet     Variable valve timing     Camless engine     Magnetomotive force    

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Automatic risk identification and safety early-warning of underground construction under complex conditions

Ding Lieyun,Zhou Cheng

Strategic Study of CAE 2012, Volume 14, Issue 12,   Pages 85-93

Abstract:

One of the most important problems in safety management of metro construction is the insufficient collection and usage of construction safety information, so that the safety control of metro construction is still “in the black box”. Therefore, the presented research applies information technology to safety control of metro construction, which includes: a. For safety risk identification before construction, we proposed a novel approach to automatically identify construction safety risk out of engineering drawings with information technology. Then the safety knowledge of metro construction could be accumulating, sharing and reusing more accurate and effective. b. For risk early-warning during construction, we brought up an approach based on safety risk information fusion and temporal-spatial coupling for metro construction, which is able to effectively identify and track dangerous construction process and locations dynamically. c. For special sections of high risk, we developed the integrated control techniques of automatic monitoring and real-time early-warning for metro construction. The system send any early-warning information to construction workers on site, so that controlling methods and emergency moves can be applied in real time to ensure construction safety. The research achievements are successfully applied in the metro construction in Wuhan, Shenyang, Kunming, Zhengzhou, etc. in China.

Keywords： automatic risk identification     information fused early-warning     spatial-temper risk coupling     real-timing    

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Integrated Development of Satellite and Satellite-Independent Navigation Technologies from the Perspective of PNT System

Guo Shuren, Jiang Kun, Li Xing, Liu Gang, Li Ping, Li Linze, Guo Siyuan

Strategic Study of CAE 2023, Volume 25, Issue 2,   Pages 50-58 doi: 10.15302/J-SSCAE-2023.02.006

Abstract: , and low-cost advantages and has become the most widely used means of positioning, navigation, and timing

Keywords： positioning     navigation     and timing system     satellite navigation     satellite-independent navigation     technology    

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Title Author Date Type Operation

Dual-Comb Ranging

Zebin Zhu, Guanhao Wu

Journal Article

Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Journal Article

Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion

Xin LIANG, Jianyong ZHANG, Zhongzhao LI, Jiabo ZHANG, Zhen HUANG, Dong HAN

Journal Article

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Effect of ignition timing and hydrogen fraction on combustion and emission characteristics of natural

WANG Jinhua, HUANG Zuohua, LIU Bing, ZENG Ke, YU Jinrong, JIANG Deming

Journal Article

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

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

Journal Article

Smart product design for automotive systems

A. Galip ULSOY

Journal Article

A global synthesis of the effectiveness and ecological impacts of management interventions for species

Journal Article

Electronic Detonator Initiation Technology: Research Progress and Development Strategies

Leng Zhendong , Fan Yong , Tu Shufang , Zhou Guisong , Guo Yiming

Journal Article

Timing decision-making method of engine blades for predecisional remanufacturing based on reliability

Le CHEN, Xianlin WANG, Hua ZHANG, Xugang ZHANG, Binbin DAN

Journal Article

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING SYSTEMS: ANALYSIS WITH A TOY MODEL

Journal Article

Design of a hybrid magnetomotive force electromechanical valve actuator

Jawad ASLAM, Xing-hu LI, Faira Kanwal JANJUA

Journal Article

Automatic risk identification and safety early-warning of underground construction under complex conditions

Ding Lieyun,Zhou Cheng

Journal Article

Integrated Development of Satellite and Satellite-Independent Navigation Technologies from the Perspective of PNT System

Guo Shuren, Jiang Kun, Li Xing, Liu Gang, Li Ping, Li Linze, Guo Siyuan

Journal Article