Resource Type

Journal Article 229

Conference Videos 1

Year

2024 2

2023 18

2022 24

2021 11

2020 16

2019 11

2018 11

2017 11

2016 6

2015 7

2014 17

2013 8

2012 11

2011 8

2010 6

2009 13

2008 12

2007 13

2006 2

2005 7

open ︾

Keywords

phase change material 4

1 2

China 2

Crystal structure 2

Phase noise 2

amorphous phase 2

benzene 2

function 2

heat transfer 2

induction motor 2

management 2

phase diagram 2

phase inversion 2

phase separation 2

phase transition 2

polyvinylidene fluoride 2

self-assembly 2

sliding mode control 2

thermal energy storage 2

open ︾

Search scope:

排序： Display mode:

Stepped frequency chirp signal imaging radar jamming using two-dimensional nonperiodic phase modulation Research Article

Qihua WU, Feng ZHAO, Tiehua ZHAO, Xiaobin LIU, Junjie WANG, Shunping XIAO

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 3,   Pages 433-446 doi: 10.1631/FITEE.2200298

Abstract: Then, the influence of different modulation parameters, such as the code width and duty ratio, are further

Keywords： Radar jamming     Stepped frequency chirp signal     Nonperiodic phase modulation     Wideband radar    

HTML PDF Collect

High efficiency spreading spectrum modulation based on double orthogonal complex sequences

Shi Xiaohong

Strategic Study of CAE 2012, Volume 14, Issue 3,   Pages 108-112

Abstract:

This paper presents a kind of high efficiency spreading spectrum modulationAfter that, the selected sequence is modulated on carrier in QPSK(quadrature phase shift keying) modeIn addition, a novel method named forward phase correction (FPC) is put forward for carrier recovery.

Keywords： modulation and demodulation     high efficiency spreading spectrum modulation     forward phase correction    

HTML PDF Collect

Performance of a Hierarchically Nanostructured W–Cu Composite Produced via Mediating Phase Separation Article

Chao Hou, Hao Lu, Zhi Zhao, Xintao Huang, Tielong Han, Junhua Luan, Zengbao Jiao, Xiaoyan Song, Zuoren Nie

Engineering 2023, Volume 26, Issue 7,   Pages 173-184 doi: 10.1016/j.eng.2022.09.017

Abstract: fabricating nanostructured W–Cu composites by powder metallurgy has been solved by means of modulated phasenanostructured (HN) W–Cu composite was prepared using intermediary Al through sluggish asynchronous phaseIn addition to a dual network composed of a Cu phase and the W–Cu nanostructure, dense Al-containing

Keywords： Immiscible-component composite     Phase separation     Nanostructure     Mechanical properties     Interface modulation    

HTML PDF Collect

A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 12,   Pages 1088-1098 doi: 10.1631/FITEE.1500111

Abstract: This paper describes a new technique of driving pulse edge modulation for insulated gate bipolar transistors

Keywords： Driving pulse edge modulation     Switching voltage spike     Complex programmable logic device (CPLD)     Active    

HTML PDF Collect

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 227-239 doi: 10.1007/s11684-021-0896-8

Abstract: prevented rNSCs overactivation and differentiation into astrocyte, which was partly mediated by the modulation

Keywords： cannabidiol     depression     radial neural stem cells     neurogenesis    

HTML PDF Collect

Performance research on anti-noise FM jamming of pseudo-random code phase modulation and sine FM combined

Tu Youchao,Zhao Huichang,Zhou Xingang

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 68-73

Abstract: The anti-noise FM jamming performance of pseudo-random code phase modulation and sine FM combined fuze

Keywords： pseudo-random code     fuze     sine FM     SJR gain     anti-jamming    

HTML PDF Collect

Modulation of Gut Microbiota in Pathological States

Yulan Wang, Baohong Wang, Junfang Wu, Xiangyang Jiang, Huiru Tang, Ole H. Nielsen

Engineering 2017, Volume 3, Issue 1,   Pages 83-89 doi: 10.1016/J.ENG.2017.01.013

Abstract:

The human microbiota is an aggregate of microorganisms residing in the human body, mostly in the gastrointestinal tract (GIT). Our gut microbiota evolves with us and plays a pivotal role in human health and disease. In recent years, the microbiota has gained increasing attention due to its impact on host metabolism, physiology, and immune system development, but also because the perturbation of the microbiota may result in a number of diseases. The gut microbiota may be linked to malignancies such as gastric cancer and colorectal cancer. It may also be linked to disorders such as nonalcoholic fatty liver disease (NAFLD); obesity and diabetes, which are characterized as “lifestyle diseases” of the industrialized world; coronary heart disease; and neurological disorders. Although the revolution in molecular technologies has provided us with the necessary tools to study the gut microbiota more accurately, we need to elucidate the relationships between the gut microbiota and several human pathologies more precisely, as understanding the impact that the microbiota plays in various diseases is fundamental for the development of novel therapeutic strategies. Therefore, the aim of this review is to provide the reader with an updated overview of the importance of the gut microbiota for human health and the potential to manipulate gut microbial composition for purposes such as the treatment of antibiotic-resistant Clostridium difficile (C. difficile) infections. The concept of altering the gut community by microbial intervention in an effort to improve health is currently in its infancy. However, the therapeutic implications appear to be very great. Thus, the removal of harmful organisms and the enrichment of beneficial microbes may protect our health, and such efforts will pave the way for the development of more rational treatment options in the future.

Keywords： Gut microbes     Diseases     Microbial modulation    

HTML PDF Collect

Dynamic modulation performance of ferroelectric liquid crystal polarization rotators and Mueller matrix

Song ZHANG, Lelun WANG, Anze YI, Honggang GU, Xiuguo CHEN, Hao JIANG, Shiyuan LIU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 256-264 doi: 10.1007/s11465-019-0573-7

Abstract: polarization rotator (FLCPR) has been widely used in polarization measurement due to its fast and stable modulationThe accurate characterization of the modulation performance of FLCPR directly affects the measurementaccuracy of the instrument based on liquid crystal modulation.Strong linear and weak circular birefringence are observed during modulation processes, and all the opticalThe designed polarimeter combines the advantages of the high modulation frequency of FLCPR and the ultrahigh

Keywords： ferroelectric liquid crystal polarization rotator (FLCPR)     dual liquid crystal Mueller matrix polarizer     design and optimization    

HTML PDF Collect

Frequency-controlable sine signal based on PWM and its implementation on FPGA

Lianzhen HUANG, Jiangang LI, Dongjun ZHANG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 322-328 doi: 10.1007/s11465-012-0312-9

Abstract: generation method that the different frequent sine signals can be generated by the different Pulse-Width Modulation

Keywords： Pulse-Width Modulation (PWM)     Field-Programmable Gate Array (FPGA)     frequency controllable    

HTML PDF Collect

Analysis and design of pulse frequency modulation dielectric barrier discharge for low power applications

Tang-tang GUO,Xing-liang LIU,Shi-qiang HAO,Chi ZHANG,Xiang-ning HE

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3,   Pages 249-258 doi: 10.1631/FITEE.1400185

Abstract: range and the applied electrode voltage, is discussed when the power is regulated with pulse frequency modulation

Keywords： Dielectric barrier discharge     Rectifier-compensated first harmonic approximation     Parasitic capacitance     Power converter design    

HTML PDF Collect

Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 1017-1022 doi: 10.1007/s11705-021-2118-y

Abstract: For demonstration, we used butyl acetate-water-ethanol ternary mixtures as inner phase and an aqueoussolution of surfactants as outer phase to make oil-in-water droplets, which can evolve into water-in-oil-in-waterdouble emulsion droplets by liquid–liquid phase separation of ternary mixtures.

Keywords： microfluidics     liposomes     ternary droplets     phase separation    

HTML PDF Collect

Insight into the role of cholesterol in modulation of morphology and mechanical properties of CHO-K1

Lei Zhang, Lisha Zhao, Ping-Kai Ouyang, Pu Chen

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 98-107 doi: 10.1007/s11705-018-1775-y

Abstract:

Cholesterol plays a significant role in the organization of lipids and modulation of membrane dynamics

Keywords： cholesterol     methyl-β-cyclodextrin     atomic force microscopy     Young’s modulus     CHO-K1 cell    

HTML PDF Collect

Advances and perspectives in catalysts for liquid-phase oxidation of cyclohexane

Hui LI, Yuanbin SHE, Tao WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 356-368 doi: 10.1007/s11705-012-0903-3

Abstract: The latest progress and developments in catalysts for the oxidation of cyclohexane are reviewed. Catalytic systems for the oxidation of cyclohexane including metal supported, metal oxides, molecular sieves, metal substituted polyoxometalates, photocatalysts, organocatalysts, Gif systems, metal-organic catalysts and metalloporphyrins are discussed with a particular emphasis on metalloporphyrin catalytic systems. The advantages and disadvantages of these methods are summarized and analyzed. Finally, the development trends in the oxidation technology of cyclohexane are examined.

Keywords： cyclohexane     liquid-phase oxidation     catalysis    

HTML PDF Collect

A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 91-96

Abstract: presents a novel carrier-based PWM method to take advantage of all levels in the inverter even at low modulationstrategy increases device utilization and enables the inverter to switch at higher frequencies and low modulation

Keywords： diode-clamped inverter     carrier-based PWM     low modulation index     redundant state    

HTML PDF Collect

Multi-harmonic forced vibration and resonance of simple beams to moving vehicles

Frontiers of Structural and Civil Engineering   Pages 981-993 doi: 10.1007/s11709-023-0979-5

Abstract: This study modeled the moving-vehicle-induced forcing excitation on a single-span prismatic bridge as a multiple frequency-multiplication harmonic load on the modal coordinates of a linear elastic simple Euler–Bernoulli beam, and investigated the forced modal oscillation and resonance behavior of this type of dynamic system. The forced modal responses consist of multiple frequency-multiplication steady-state harmonics and one damped mono-frequency complementary harmonic. The analysis revealed that a moving load induces high-harmonic forced resonance amplification when the moving speed is low. To verify the occurrence of high-harmonic forced resonance, numerical tests were conducted on single-span simple beams based on structural modeling using the finite element method (FEM) and a moving sprung-mass oscillator vehicle model. The forced resonance amplification characteristics of the fundamental mode for beam response estimation are presented with consideration to different end restraint conditions. The results reveal that the high-harmonic forced resonance may be significant for the investigated beams subjected to vehicle loads moving at specific low speeds. For the investigated single-span simple beams, the moving vehicle carriage heaving oscillation modulates the beam modal frequency, but does not induce notable variation of the modal oscillation harmonic structure for the cases that vehicle of small mass moves in low speed.

Keywords： forced vibration     linear Euler beam     moving load     harmonic structure     frequency modulation     end restraints    

HTML PDF Collect

Title Author Date Type Operation

Stepped frequency chirp signal imaging radar jamming using two-dimensional nonperiodic phase modulation

Qihua WU, Feng ZHAO, Tiehua ZHAO, Xiaobin LIU, Junjie WANG, Shunping XIAO

Journal Article

High efficiency spreading spectrum modulation based on double orthogonal complex sequences

Shi Xiaohong

Journal Article

Performance of a Hierarchically Nanostructured W–Cu Composite Produced via Mediating Phase Separation

Chao Hou, Hao Lu, Zhi Zhao, Xintao Huang, Tielong Han, Junhua Luan, Zengbao Jiao, Xiaoyan Song, Zuoren Nie

Journal Article

A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

Journal Article

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Journal Article

Performance research on anti-noise FM jamming of pseudo-random code phase modulation and sine FM combined

Tu Youchao,Zhao Huichang,Zhou Xingang

Journal Article

Modulation of Gut Microbiota in Pathological States

Yulan Wang, Baohong Wang, Junfang Wu, Xiangyang Jiang, Huiru Tang, Ole H. Nielsen

Journal Article

Dynamic modulation performance of ferroelectric liquid crystal polarization rotators and Mueller matrix

Song ZHANG, Lelun WANG, Anze YI, Honggang GU, Xiuguo CHEN, Hao JIANG, Shiyuan LIU

Journal Article

Frequency-controlable sine signal based on PWM and its implementation on FPGA

Lianzhen HUANG, Jiangang LI, Dongjun ZHANG

Journal Article

Analysis and design of pulse frequency modulation dielectric barrier discharge for low power applications

Tang-tang GUO,Xing-liang LIU,Shi-qiang HAO,Chi ZHANG,Xiang-ning HE

Journal Article

Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Journal Article

Insight into the role of cholesterol in modulation of morphology and mechanical properties of CHO-K1

Lei Zhang, Lisha Zhao, Ping-Kai Ouyang, Pu Chen

Journal Article

Advances and perspectives in catalysts for liquid-phase oxidation of cyclohexane

Hui LI, Yuanbin SHE, Tao WANG

Journal Article

A Novel PWM Method of Diode-clamped Multilevel Inverter at Low Modulation Indices

Xin Xiang,Zhang Qingfan,Hu Shunquan,Li Ruilai

Journal Article

Multi-harmonic forced vibration and resonance of simple beams to moving vehicles

Journal Article