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Pengfei JI, Yiming RONG, Yuwen ZHANG, Yong TANG
Frontiers in Energy 2018, Volume 12, Issue 1, Pages 137-142 doi: 10.1007/s11708-018-0532-8
Keywords: thermoelectric material thermal transport Si/Gesuperlattics molecular dynamics (MD)
Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG
Frontiers in Energy 2017, Volume 11, Issue 1, Pages 85-91 doi: 10.1007/s11708-016-0437-3
Keywords: PECVD high pressure and high power a-Si:H microstructure passivation heterojunction solar cell
Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU
Frontiers in Energy 2017, Volume 11, Issue 1, Pages 92-95 doi: 10.1007/s11708-016-0432-8
Keywords: double-layer emitter α-Si:H/c-Si heterojunction solar cell short circuit current quantum efficiency current-voltage-temperature
Stability and dynamics of rotor system with 45° slant crack on shaft
Yanli LIN, Xiaohui SI, Fulei CHU
Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2, Pages 203-213 doi: 10.1007/s11465-011-0131-4
Crack on a shaft is one of the common damages in a rotor system. In this paper, transverse vibrations are calculated to compare the influences of transverse crack and slant crack on the rotor system. Results show that the vibration amplitude of the rotor system with a 45° slant crack on the shaft is larger than that with a transverse crack when the two types of crack have the same depth and the rotor system runs in the same condition. Stability and dynamic characteristics of the rotor system with a 45° slant crack on the shaft under torsional excitation are analyzed by considering opening and closing of the crack. It is shown that the instability of the transverse vibration of the rotor system increases with increasing difference between the bending stiffness in two main directions, and the vibration is stable when the two bending stiffness are identical. The spectrum analysis of the steady-state response reveals that the gravity and the eccentricity produce different frequency components, and when the two bending stiffness are identical, the multiple frequency components of the torsional excitation disappear. Further investigation shows that the vibration amplitudes in combined frequencies increase rapidly in transversal, torsional, and axial vibration with increasing slant crack depth. The results are helpful for the understanding the dynamic behavior of a rotor system with a slant crack on a shaft and can be used for the detection of the slant crack on a shaft.
Keywords: rotor dynamics slant crack stability torsional excitation open and close
Chunhao Dai, Pufeng Qin, Zhangwei Wang, Jian Chen, Xianshan Zhang, Si Luo
Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0892-z
Keywords: Open top chamber Gaseous elemental mercury (GEM) Soil Mercury Brassica napus
Laser ablation of block copolymers with hydrogen-bonded azobenzene derivatives
Jintang Huang, Youju Huang, Si Wu
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3, Pages 450-456 doi: 10.1007/s11705-018-1735-6
Supramolecular assemblies (PS-b-P4VP(AzoR)) are fabricated by hydrogen-bonding azobenzene derivatives (AzoR) to poly(4-vinyl pyridine) blocks of polystyrene-block-poly(4-vinyl pyridine) (PS-b-P4VP). PS-b-P4VP(AzoR) forms phase separated nanostructures with a period of ~75–105 nm. A second length scale structure with a period of 2 µm is fabricated on phase separated PS-b-P4VP(AzoR) by laser interference ablation. Both the concentration and the substituent of AzoR in PS-b-P4VP(AzoR) affect the laser ablation process. The laser ablation threshold of PS-b-P4VP(AzoR) decreases as the concentration of AzoR increases. In PS-b-P4VP(AzoR) with different substituents (R= CN, H, and CH3), ablation thresholds follow the trend: PS-b-P4VP(AzoCN)<PS-b-P4VP(AzoCH3)<PS-b-P4VP(AzoH). This result indicates that the electron donor group (CH3) and the electron acceptor group (CN) can lower the ablation threshold of PS-b-P4VP(AzoR).
Keywords: laser ablation block copolymers hydrogen-bond azobenzene derivatives supramolecular assembly
Zhijun PENG ,
Frontiers in Energy 2009, Volume 3, Issue 3, Pages 353-358 doi: 10.1007/s11708-009-0035-8
Keywords: charge stratification SI engine lean-burn combustion NO emission
Frontiers in Energy doi: 10.1007/s11708-023-0881-9
Keywords: Ga(X)N/Si nanoarchitecture artificial photosynthesis water splitting solar toward hydrogen
Si Micromachined Gyroscope Driven by the Rotating Carrier
Zhang Fuxue,Mao Xu,Zhang wei
Strategic Study of CAE 2006, Volume 8, Issue 8, Pages 23-27
This paper reported a silicon micromachined gyroscope that is driven by the rotating carrier's angular velocity.The silicon chip was manufactured by anisotropy etching.The design,fabrication and packing of the sensing element were introduced. The angular velocity of the rotating carrier was measured by emulator. The simulation experiment and performance test have certificated that the principle of the gyroscope is correct and the gyroscope can be used to sense yawing or pitching angular velocity of the rotating carrier, and the angular velocity of the rotating carrier itself.
Keywords: Si anisotropy etching angular velocity emulator
Fabrication of Si-based three-dimensional microbatteries: A review
Chuang YUE, Jing LI, Liwei LIN
Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4, Pages 459-476 doi: 10.1007/s11465-017-0462-x
High-performance, Si-based three-dimensional (3D) microbattery systems for powering micro/nano-electromechanicalIn this review, Si-based 3D microbatteries and related fabrication technologies, especially the production
Keywords: three-dimensional (3D) wafer-scale Si-based anode micro-LIBs thin-film deposition
Zhiyu ZHANG, Changxiao LIU, Duanyun SI, Rong LU, Xiulin YI
Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4, Pages 436-442 doi: 10.1007/s11705-012-1222-4
Jingning SHAN, Xiaofang YANG, Chao YAN, Yiguang JU, Lin CHEN, Fang ZHAO
Frontiers in Energy 2019, Volume 13, Issue 4, Pages 626-635 doi: 10.1007/s11708-019-0650-y
Keywords: lithium-ion battery Si anode Si-graphite composite single wall carbon nanotube (SWCNT) NCM811
Current progress on scaffolds of tissue engineering heart valves
DONG Nianguo, SHI Jiawei, CHEN Si, HONG Hao, HU Ping
Frontiers of Medicine 2008, Volume 2, Issue 3, Pages 229-234 doi: 10.1007/s11684-008-0043-9
Keywords: function scaffold promising research engineering
Ultrathin microcrystalline hydrogenated Si/Ge alloyed tandem solar cells towards full solar spectrum
Yu Cao, Xinyun Zhu, Xingyu Tong, Jing Zhou, Jian Ni, Jianjun Zhang, Jinbo Pang
Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6, Pages 997-1005 doi: 10.1007/s11705-019-1906-0
Keywords: thin films solar cells quadruple junction solar cell amorphous silicon silicon germanium alloy quantum efficiency
Recent advances in system reliability optimization driven by importance measures
Shubin SI, Jiangbin ZHAO, Zhiqiang CAI, Hongyan DUI
Frontiers of Engineering Management 2020, Volume 7, Issue 3, Pages 335-358 doi: 10.1007/s42524-020-0112-6
Keywords: importance measure system performance reliability optimization optimization rules optimization algorithms
Title Author Date Type Operation
Impacts of cone-structured interface and aperiodicity on nanoscale thermal transport in Si/Ge superlattices
Pengfei JI, Yiming RONG, Yuwen ZHANG, Yong TANG
Journal Article
Plasma enhanced chemical vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunction
Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG
Journal Article
Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction
Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU
Journal Article
Stability and dynamics of rotor system with 45° slant crack on shaft
Yanli LIN, Xiaohui SI, Fulei CHU
Journal Article
Mercury enrichment in
Chunhao Dai, Pufeng Qin, Zhangwei Wang, Jian Chen, Xianshan Zhang, Si Luo
Journal Article
Laser ablation of block copolymers with hydrogen-bonded azobenzene derivatives
Jintang Huang, Youju Huang, Si Wu
Journal Article
Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI
Zhijun PENG ,
Journal Article
Ga(X)N/Si nanoarchitecture: An emerging semiconductor platform for sunlight-powered water splitting toward
Journal Article
Si Micromachined Gyroscope Driven by the Rotating Carrier
Zhang Fuxue,Mao Xu,Zhang wei
Journal Article
Fabrication of Si-based three-dimensional microbatteries: A review
Chuang YUE, Jing LI, Liwei LIN
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LC/MS/MS and radioisotope method combined for recognizing the affinity between catalpol and OCT2 transporter
Zhiyu ZHANG, Changxiao LIU, Duanyun SI, Rong LU, Xiulin YI
Journal Article
Promoting Si-graphite composite anodes with SWCNT additives for half and NCM811 full lithium ion batteries
Jingning SHAN, Xiaofang YANG, Chao YAN, Yiguang JU, Lin CHEN, Fang ZHAO
Journal Article
Current progress on scaffolds of tissue engineering heart valves
DONG Nianguo, SHI Jiawei, CHEN Si, HONG Hao, HU Ping
Journal Article
Ultrathin microcrystalline hydrogenated Si/Ge alloyed tandem solar cells towards full solar spectrum
Yu Cao, Xinyun Zhu, Xingyu Tong, Jing Zhou, Jian Ni, Jianjun Zhang, Jinbo Pang
Journal Article