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Design and simulation of a standing wave oscillator based PLL

Wei ZHANG,You-de HU,Li-rong ZHENG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3,   Pages 258-264 doi: 10.1631/FITEE.1500210

Abstract: A standing wave oscillator (SWO) is a perfect clock source which can be used to produce a high frequencyclock signal with a low skew and high reliability.This PLL can be used not only as a clock source, but also as a clock distribution network to providehigh quality clock signals.

Keywords： Standing wave oscillator (SWO)     Clock distribution     Phase locked loop (PLL)     Varactor    

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Consistency of MGEX Orbit and Clock Products Article

Peter Steigenberger, Oliver Montenbruck

Engineering 2020, Volume 6, Issue 8,   Pages 898-903 doi: 10.1016/j.eng.2019.12.005

Abstract: analysis centers of the Multi-GNSS Pilot Project of the International GNSS Service provide orbit and clockThe clock consistency is about 2 cm for GPS, 5 cm for GLONASS and Galileo, and 10 cm for BeiDou-2.

Keywords： system     International GNSS Service     Multi-GNSS Pilot Project     Precise orbit determination     Satellite clock    

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Wide-range tracking technique for process-variation-robust clock and data recovery applications Article

Jun-sheng LV, You LI, Yu-mei ZHOU, Jian-zhong ZHAO, Hai-hua SHEN, Feng ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 729-737 doi: 10.1631/FITEE.1500410

Abstract: A wide-range tracking technique for clock and data recovery (CDR) circuit is presented.

Keywords： Clock and data recovery     Digital loop filter     Phase interpolator    

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Power-efficient dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme Article

Liang GENG,Ji-zhong SHEN,Cong-yuan XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 962-972 doi: 10.1631/FITEE.1500293

Abstract: A novel dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme (DIFF-CGS)is proposed, which employs a transmission-gate-logic (TGL) based clock-gating scheme in the pulse generationdisables the inverter chain when the input data are kept unchanged, so redundant transitions of delayed clock

Keywords： Low power     Flip-flop     Implicit     Clock-gating scheme     Dual-edge    

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Two Ways Pseudo Range Time Synchronization for Navigation Satellite Clock

Tan Shusen

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 70-74

Abstract:

Aiming at the demand of time synchronization, the navigation satellite two-way clock pseudo rangeComparing with other navigation satellite clock synchronization ways, this way was provided with advantagesthe first section of the paper the meaning and status of time synchronization of navigation satellite clockThe error of the navigation satellite clock synchronization affects users' position and precisionThe difference between them is clock bias.

Keywords： navigation satellite     pseudo range     time synchronization    

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Microwave－Optical Frequency Standards at NIM：Realizing of Definition of Metre and Second

Li Tianchun

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 27-31

Abstract: presents the realization,  at NIM,  of SI time unit second using the NIM4 cesium fountain clockThe uncertainty of NIM4 fountain clock was evaluated as 5 × 10 - 15.nbsp;The frequency uncertainty of the FS optical comb locked to a H-maser, which is steered by NIM4 clock The function,  significance of Cs fountain clock, stabilized lasers,  optical comb andFinally the progress of NIM5 fountain clock and the construction of a Sr atom optical clock started in

Keywords： metrology     frequency standard     stabilized laser     Cs fountain clock     FS optical comb    

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Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 236-242 doi: 10.1007/s11783-010-0218-8

Abstract: Copper and zinc interaction on clearance from water and distribution in different tissues was investigated

Keywords： interaction     mussel     copper     zinc     clearance     distribution    

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Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 985-995 doi: 10.1007/s11705-021-2126-y

Abstract: ., reaction temperature, residence time, solid loading rate) on the distribution of nitrogen in the oildifferences of amino acids in the protein components in the two microalgae might affect the nitrogen distribution

Keywords： microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

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Thermodynamic models and energy distribution of single-phase heated surface in a boiler under unsteady

Xiyan GUO, Yongping YANG

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 69-74 doi: 10.1007/s11708-010-0117-7

Abstract: Taking the low-temperature superheater of a 610 t/h-boiler as an example, the distribution of energy,

Keywords： thermodynamic model     energy distribution     boiler     unsteady conditions    

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Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 341-351 doi: 10.1007/s11783-015-0776-z

Abstract: The optimization of a water distribution network (WDN) is a highly nonlinear, multi-modal, and constrainedAn improved estimation of distribution algorithm (EDA) using historic best positions to construct a sampleTwo water distribution network benchmark examples from the literature are adopted to evaluate the performance

Keywords： particle swarm optimization (PSO)     diversity control     estimation of distribution algorithm (EDA)     waterdistribution network (WDN)     premature convergence     hybrid strategy    

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Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 839-848 doi: 10.1007/s11783-012-0409-8

Abstract: In this paper, it proposed an index system for hazard and vulnerability evaluations of water distributiontotal absorption are the most important factors in hazard and vulnerability evaluation of the water distribution

Keywords： water distribution network     hazard     vulnerability     contaminant accident    

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Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 241-248 doi: 10.1007/s11465-011-0219-x

Abstract:

This paper presents a new calculation method that can calculate the load distribution on pipe threaded

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 98-103 doi: 10.1007/s11708-010-0019-8

Abstract: In the design of the receiver, the heat flux distribution in the cavity should be considered first.this study, a numerical simulation using the Monte Carlo Method has been conducted on the heat flux distributionBy tracing every solar ray, the distribution of heat flux density in the cavity receiver was obtainedThe numerical results show that the solar flux distribution on the absorbing panels is similar to that

Keywords： solar cavity receiver     Monte Carlo method     heat flux distribution    

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The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1356-4

Abstract:

•Bacterial concentrations from eight stages were 104–105copies/m3.

Keywords： Size distribution     Airborne bacteria     Biological diversity     Human pathogenic bacteria     Composting plants    

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Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets

Atma Ram GUPTA,Ashwani KUMAR

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 86-98 doi: 10.1007/s11708-017-0456-8

Abstract: The aim of this paper is to analyze unbalanced radial distribution systems (UBRDS) with the distributionobjective of providing reactive power support to enhance voltage profile and reduce line losses of the distributionFurther, the impact of load growth is also considered for better planning of the power distribution system

Keywords： unbalanced distribution system     D-STATCOM     voltage sensitivity index     load models     load growth     distribution    

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Title Author Date Type Operation

Design and simulation of a standing wave oscillator based PLL

Wei ZHANG,You-de HU,Li-rong ZHENG

Journal Article

Consistency of MGEX Orbit and Clock Products

Peter Steigenberger, Oliver Montenbruck

Journal Article

Wide-range tracking technique for process-variation-robust clock and data recovery applications

Jun-sheng LV, You LI, Yu-mei ZHOU, Jian-zhong ZHAO, Hai-hua SHEN, Feng ZHANG

Journal Article

Power-efficient dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme

Liang GENG,Ji-zhong SHEN,Cong-yuan XU

Journal Article

Two Ways Pseudo Range Time Synchronization for Navigation Satellite Clock

Tan Shusen

Journal Article

Microwave－Optical Frequency Standards at NIM：Realizing of Definition of Metre and Second

Li Tianchun

Journal Article

Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Journal Article

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Journal Article

Thermodynamic models and energy distribution of single-phase heated surface in a boiler under unsteady

Xiyan GUO, Yongping YANG

Journal Article

Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Journal Article

Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Journal Article

Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Journal Article

The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Journal Article

Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets

Atma Ram GUPTA,Ashwani KUMAR

Journal Article