《中国科学：技术科学》英文版2017年第6期文章概览

guozonghui888

Science China Technological Sciences
Volume 60, Issue 6, June 2017
ISSN: 1674-7321

COVER   The orthogonal transformation operation theorem for superimposing the spatial universal rotating magnetic field (SURMF) is proposed based on two independent rotation angular variables. Azimuth and altitude angles are employed as two variables of the three-phase sine current superposition formula derived by the orthogonal rotation inverse transformation. The unique control rules of the orientation and the rotational direction of the SURMF are generalized in each spatial quadrant, thus the scanning of the normal vector ofthe SURMF along the horizontal or vertical direction can be achieved through changing only one variable, simplifying the control process of the orientation of the SURMF greatly. To validate its feasibility and maneuverability, experiments were conducted in the animal intestine utilizing the innovative dual hemisphere capsule robot (DHCR) with active and passive modes. It was demonstrated that both the suspended posture adjustment mode and the steering rolling locomotion mode of the DHCR can be realized conveniently through single variable control. This breakthrough will lay a foundation for the human-machine interaction control of the SURMF.

Special Topic: Mechanical Engineering
Coupling analysis-based false monitoring information identification of production system in process industry
GAO ZhiYong, WANG RongXi, JIANG HongQuan, GAO JianMin & DONG RongGuang
Sci China Tech Sci, 2017, 60(6): 807‒817

Obstacle avoidance for a hexapod robot in unknown environment
CHAI Xun, GAO Feng, QI ChenKun, PAN Yang, XU YiLin & ZHAO Yue
Sci China Tech Sci, 2017, 60(6): 818‒831

Wave propagation of laminated composite plates via GPU-based wavelet finite element method
ZUO Hao, YANG ZhiBo, SUN Yu, XU CaiBin & CHEN XueFeng
Sci China Tech Sci, 2017, 60(6): 832‒843

Stability control strategy of steer-by-wire system based on LQG/LTR
ZHANG Han & ZHAO WanZhong
Sci China Tech Sci, 2017, 60(6): 844‒853

Orthogonal transformation operation theorem of a spatial universal uniform rotating magnetic field and its application in capsule endoscopy
ZHANG YongShun, YU ZiChun, YANG HuiYuan, HUANG YunKui & CHEN Jun
Sci China Tech Sci, 2017, 60(6): 854‒864


Article
Elastic-plastic seismic response of CRTS II slab ballastless track system on high-speed railway bridges
YAN Bin, LIU Shi, PU Hao, DAI GongLian & CAI XiaoPei
Sci China Tech Sci, 2017, 60(6): 865‒871

Widely tunable microwave photonic filter based on self-adaptive optical carrier regeneration
LI GuanPeng, WANG Hui, QI XiaoQiong, XIELiang & ZHANG BangHong
Sci China Tech Sci, 2017, 60(6): 872‒877

Model predictions for behaviors of sand-nonplastic-fines mixtures using equivalent-skeleton void-ratio state index
XIAO Yang, SUN YiFei, LIU HanLong, XIANG Jia, MA QiFeng & LONG LeiHang
Sci China Tech Sci, 2017, 60(6): 878‒892

Free-surface air entrainment in open-channel flows
WEI WangRu, XU WeiLin, DENG Jun, TIAN Zhong & ZHANG FaXing
Sci China Tech Sci, 2017, 60(6): 893‒901

The impact of space environment on gene expression in Arabidopsis thaliana seedlings
LI HuaSheng, LU JinYing, ZHAO Hui, SUN Qiao, YU FuTong, PAN Yi, CHEN Yu, SU Liang & LIU Min
Sci China Tech Sci, 2017, 60(6): 902‒910

Thermography analyses of rock fracture due to excavation and overloading for tunnel in 30° inclined strata
SUN XiaoMing, XU HuiChen, HE ManChao, GONG WeiLi & CHEN Feng
Sci China Tech Sci, 2017, 60(6): 911‒923

Unsteady flow structures in the tip region for a centrifugal compressor impeller before rotating stall
ZHAO HuiJing, WANG ZhiHeng & XI Guang
Sci China Tech Sci, 2017, 60(6): 924‒934

Responses of zonal wind at ~40°N to stratospheric sudden warming events in the stratosphere, mesosphere and lower thermosphere
YANG JunFeng, XIAO CunYing, HU Xiong & XU QingChen
Sci China Tech Sci, 2017, 60(6): 935‒945

A new power coordination method for islanded micro-grid basing on multi-agent system
YIN XiaoQi & DING Ming
Sci China Tech Sci, 2017, 60(6): 946‒952

Effects of steam on CO2 absorption ability of calcium-based sorbent modified by peanut husk ash
LIU Yang, YANG XinFang, ZHAO LiFeng, LEI FuLin & XIAO YunHan
Sci China Tech Sci, 2017, 60(6): 953‒962


News & Views
Latest advances in discontinuous deformation analysis method
JIAO YuYong, ZHAO Qiang, ZHENG Fei & WANG Long
Sci China Tech Sci, 2017, 60(6): 963‒964

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