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Engineering System of Weather Modification in China

He Zhijin,Wang Guanghe,Wang Yuzeng

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 87-91

Abstract:

Weather modification (rain enhancement, hail suppression, fog clearing, etc.) is introduced in this

Keywords： weather modification     precipitation enhancement     hail suppression     fog clearing     engineering system    

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Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization

Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 449-458 doi: 10.1007/s11783-010-0250-x

Abstract: In this paper, the technique of suppression subtractive hybridization (SSH) was used to isolate and identify

Keywords： cadmium (Cd)     suppression subtractive hybridization    

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Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems

Le YANG, Shuo WANG, Jianghua FENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 329-353 doi: 10.1007/s11465-018-0466-1

Abstract: EMI noise suppression techniques, including passive filter, Wheatstone bridge balance, active filter,

Keywords： variable-frequency drive (VFD)     electromagnetic interference (EMI)     motor drive modeling     EMI noise suppression    

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Vibration suppression of speed-controlled robots with nonlinear control

Paolo BOSCARIOL,Alessandro GASPARETTO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 204-212 doi: 10.1007/s11465-016-0380-3

Abstract: The capability of achieving improved trajectory tracking and vibration suppression is shown through experimental

Keywords： industrial robot     nonlinear control     vibration damping     model-free control     motion control    

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Study on concoction and water mist fire suppression performance of new composite additives

Liu Jianghong,Jin Xiang,Liao Guangxuan

Strategic Study of CAE 2010, Volume 12, Issue 9,   Pages 58-62

Abstract:

Water mists for fire suppression and control have widely received considerableA new composite additive was concocted and its effectiveness to water mist's fire suppression performanceResults showed that this additive can greatly improve the fire suppression efficiency of water mist andThe fire suppression mechanism of water mist with this additive was combined with physical and chemicalHowever, the surface cooling and fuel isolation were considered to be the crucial suppression mechanism

Keywords： water mist     additive     concoction     fire suppression performance    

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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

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 10,   Pages 1413-1534 doi: 10.1631/FITEE.1900523

Abstract: In this paper we propose a novel convolutional neural network based dual-activated clutter suppressionSecond, we obtain the suppression coefficients by mapping the CAM inversely to the sea clutter spectrum
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Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 691-706 doi: 10.1007/s11708-019-0621-3

Abstract: In theory, high compression ratio has the potential to improve the thermal efficiency and promote the power output of the SI engine. However, the application of high compression ratio is substantially limited by the knock in practical working process. The objective of this work is to comprehensively investigate the application of high compression ratio on a gasoline engine based on the Miller cycle with boost pressure and split injection. In this work, the specific optimum strategies for CR10 and CR12 were experimentally investigated respectively on a single cylinder DISI engine. It was found that a high level of Miller cycle with a higher boost pressure could be used in CR12 to achieve an effective compression ratio similar to CR10, which could eliminate the knock limits at a high compression ratio and high load. To verify the advantages of the high compression ratio, the fuel economy and power performance of CR10 and CR12 were compared at full and partial loads. The result revealed that, compared with CR10, a similar power performance and a reduced fuel consumption of CR12 at full load could be achieved by using the strong Miller cycle and split injection. At partial load, the conditions of CR12 had very superior fuel economy and power performance compared to those of CR10.

Keywords： high compression ratio     knock     Miller cycle     split injection     engine performance    

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Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12

Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang

Frontiers of Medicine 2019, Volume 13, Issue 1,   Pages 83-93 doi: 10.1007/s11684-019-0682-z

Abstract: Furthermore, mAb CH12 showed significantly stronger growth suppression activities and induced a more

Keywords： S492R EGFR ectodomain mutation     colorectal cancer     mAb CH12     immunnotherapy    

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Fault tolerant control strategy for modular PWM current source inverter

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 228-238 doi: 10.1007/s11708-022-0852-6

Abstract: In this paper, a fault-tolerant control method for an input-series output-parallel modular grid-tied pulse-width modulation (PWM) current source inverter is proposed to address the most commonly seen single symmetrical gate-commutated thyristor (SGCT) open-circuit fault problems. This method actively offsets the neutral point of the current space vector to ensure a sinusoidal output of the grid current, and it can achieve the upper limit power of the inverter under the condition of a single SGCT open-circuit fault. In addition, an active damping control method based on grid harmonic current feedback is proposed after analyzing the influence of the transformer ferromagnetic resonance caused by the neutral point offset on the power quality of the grid current. It has been demonstrated that the proposed method effectively suppresses the resonance caused by the transformer and the modified modulation, improving the grid current’s power quality.

Keywords： source converter (CSC)     fault-tolerant control     space vector modulation     active damping     resonance suppression    

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Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding machine spindles

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0763-1

Abstract: Modern rotating machines, which are represented by high-end grinding machines, have developed toward high precision, intelligence, and high durability in recent years. As the core components of grinding machine spindles, grinding wheels greatly affect the vibration level during operation. The unbalance vibration self-recovery regulation (UVSRR) system is proposed to suppress the vibration of grinding wheels during workpiece processing, eliminating or minimizing the imbalance. First, technical principles and the system composition are introduced. Second, the balancing actuator in the UVSRR system is analyzed in detail. The advanced nature of the improved structure is presented through structure introduction and advantage analysis. The performance of the balancing actuator is mutually verified by the theoretical calculation of torque and software simulation. Results show that the self-locking torque satisfies the actual demand, and the driving torque is increased by 1.73 times compared with the traditional structure. Finally, the engineering application value of the UVSRR system is verified by laboratory performance comparison and actual factory application. The balancing speed and effect of the UVSRR system are better than those of an international mainstream product and, the quality of the workpieces machined in the factory improved by 40%.

Keywords： UVSRR system     radial electromagnetic type     vibration suppression     performance simulation     engineering    

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Doppler ambiguity analysis and suppression for LTE-based passive bistatic radars Research Articles

Luo Zuo, Jun Wang, Gang Chen,zuoluo_xidian@163.com,wangjun@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 8,   Pages 1140-1152 doi: 10.1631/FITEE.2000143

Abstract: In this study, we provide a detailed analysis of the frequency division duplex long term evolution downlink (FDD LTE DL) signal for passive bistatic radars that use the signal as an illuminator of opportunity. In particular, we analyze the cross-ambiguity function and illustrate its undesired deterministic peaks in the Doppler dimension due to the specific structure of the FDD LTE DL signal. A new adaptive mismatched filtering method is proposed for pre-processing the original reference signal to suppress these undesired deterministic peaks in the . The effectiveness of our proposed method is demonstrated via simulations following robustness analysis, showing that all undesired peaks are suppressed below −40 dB, with only 1.7 dB reduction in the main peak.

Keywords： 外辐射源雷达（PBR）；长期演进（LTE）；多普勒模糊副峰；距离多普勒二维联合    

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Topology optimization of piezoelectric bi-material actuators with velocity feedback control

Mariana MORETTI, Emílio C. N. SILVA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 190-200 doi: 10.1007/s11465-019-0537-y

Abstract: multifunctional concepts are considered for the design of a controlled piezoelectric actuator with vibration suppression

Keywords： piezoactuator     active velocity feedback control     time-domain transient analysis     host structure design     vibration suppression    

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Changes in bulk soil affect the disease-suppressive rhizosphere microbiome against Fusarium wilt disease

Lin FU, Wu XIONG, Francisco DINI-ANDREOTE, Beibei WANG, Chengyuan TAO, Yunze RUAN, Zongzhuan SHEN, Rong LI, Qirong SHEN

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 3,   Pages 307-316 doi: 10.15302/J-FASE-2020328

Abstract: The results indicate that disease suppression was mediated by the structure of a suppressive rhizosphere

Keywords： agricultural practice     bulk soil     disease suppression     rhizosphere ecology    

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Supermodular interference suppression game for multistatic MIMO radar networks and multiple jammers with Research Article

Bin HE, Hongtao SU,aihebin19@163.com,suht@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 4,   Pages 617-629 doi: 10.1631/FITEE.2000652

Abstract: electronic warfare, we establish a non-cooperative countermeasure game model to analyze and interference suppressionThe algorithm can ensure the best , and also improves the interference suppression ability of the .

Keywords： Supermodular game     Power allocation     Beamforming     MIMO radar     Multiple jammers    

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An Effective Green Porous Structural Adhesive for Thermal Insulating, Flame-Retardant, and Smoke-Suppressant Expandable Polystyrene Foam Article

Meng-En Li, Hai-Bo Zhao, Jin-Bo Cheng, Ting Wang, Teng Fu, Ai-Ning Zhang, Yu-Zhong Wang

Engineering 2022, Volume 17, Issue 10,   Pages 151-160 doi: 10.1016/j.eng.2020.08.032

Abstract:

To develop an efficient way to overcome the contradiction among flame retardancy, smoke suppressionlow heat-release rates and smoke-production release, indicating excellent fire retardancy and smoke suppressionphosphorus-containing compounds that formed in the gas phase contributed to the excellent flame retardancy and smoke suppressionprovides a promising strategy for fabricating polymer foams with excellent flame retardancy, smoke suppression

Keywords： Biomass porous coating     Expanded polystyrene foam     Low thermal conductivity     Flame retardancy     Smoke suppression    

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Title Author Date Type Operation

Engineering System of Weather Modification in China

He Zhijin,Wang Guanghe,Wang Yuzeng

Journal Article

Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization

Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG

Journal Article

Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems

Le YANG, Shuo WANG, Jianghua FENG

Journal Article

Vibration suppression of speed-controlled robots with nonlinear control

Paolo BOSCARIOL,Alessandro GASPARETTO

Journal Article

Study on concoction and water mist fire suppression performance of new composite additives

Liu Jianghong,Jin Xiang,Liao Guangxuan

Journal Article

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

Journal Article

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

Growth suppression of colorectal cancer expressing S492R EGFR by monoclonal antibody CH12

Qiongna Dong, Bizhi Shi, Min Zhou, Huiping Gao, Xiaoying Luo, Zonghai Li, Hua Jiang

Journal Article

Fault tolerant control strategy for modular PWM current source inverter

Journal Article

Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding machine spindles

Journal Article

Doppler ambiguity analysis and suppression for LTE-based passive bistatic radars

Luo Zuo, Jun Wang, Gang Chen,zuoluo_xidian@163.com,wangjun@xidian.edu.cn

Journal Article

Topology optimization of piezoelectric bi-material actuators with velocity feedback control

Mariana MORETTI, Emílio C. N. SILVA

Journal Article

Changes in bulk soil affect the disease-suppressive rhizosphere microbiome against Fusarium wilt disease

Lin FU, Wu XIONG, Francisco DINI-ANDREOTE, Beibei WANG, Chengyuan TAO, Yunze RUAN, Zongzhuan SHEN, Rong LI, Qirong SHEN

Journal Article

Supermodular interference suppression game for multistatic MIMO radar networks and multiple jammers with

Bin HE, Hongtao SU,aihebin19@163.com,suht@xidian.edu.cn

Journal Article

An Effective Green Porous Structural Adhesive for Thermal Insulating, Flame-Retardant, and Smoke-Suppressant Expandable Polystyrene Foam

Meng-En Li, Hai-Bo Zhao, Jin-Bo Cheng, Ting Wang, Teng Fu, Ai-Ning Zhang, Yu-Zhong Wang

Journal Article