Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 5

Year

2022 1

2021 1

2011 1

2010 1

2007 1

Keywords

acupuncture 1

adsorption behaviour 1

anchoring groups 1

anchoring technology 1

blasting 1

bolt 1

chronic low back pain 1

developed 1

dye-binding strength 1

dye-sensitized solar cells 1

geological forecasting 1

hydropower engineering 1

ineffective anchoring/loosening 1

methodology 1

model test 1

piezoelectric 1

progressive failure 1

rock engineering 1

sham acupuncture 1

slope 1

open ︾

Search scope:

排序： Display mode:

Novel precision piezoelectric step rotary actuator

LIU Jianfang, YANG Zhigang, ZHAO Hongwei, CHENG Guangming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 356-360 doi: 10.1007/s11465-007-0062-2

Abstract: It adopts the principle of bionics and works with an inside anchoring/loosening of the stator and a distortionstructure of the uniformly distributed thin flexible hinge to solve problems such as ineffective anchoring/loosening, low step rotary frequency, small travel, poor resolution, low speed and unsteady output.

Keywords： developed stability ineffective anchoring/loosening technology piezoelectric

HTML PDF Collect

Unravelling the bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7, Pages 1060-1078 doi: 10.1007/s11705-021-2117-z

Abstract: Novel near-infrared sensitizers with different anchoring groups aiming toward improved stability andThe acrylic acid anchoring group was demonstrated to be an optimum functional group owing to its fastResults of dye binding on TiO₂ surface demonstrated that SQ-162 bearing double anchoring groupsacrylic acid exhibited>550 times stronger binding as compared to dye SQ-140 having cyanoacrylic acid anchoring

Keywords： anchoring groups adsorption behaviour dye-binding strength squaraine dyes dye-sensitized solar cells

HTML PDF Collect

Acupuncture is ineffective for chronic low back pain? A critical analysis and rethinking

Xuqiang Wei, Baoyan Liu

Frontiers of Medicine 2021, Volume 15, Issue 5, Pages 767-775 doi: 10.1007/s11684-020-0785-6

Abstract: Acupuncture is a promising treatment for relieving pain and improving lower back function in clinical practice. However, evidence from randomized clinical trials (RCTs) remains controversial. Most RCTs conclude that acupuncture procedures for chronic low back pain (CLBP) had no significant difference in efficacy and belonged to placebo. We carefully reviewed and analyzed the methodology and implementation of sham acupuncture in RCTs. Controversial evidence of acupuncture for CLBP is only a microcosm of the evaluation methodological limitation of acupuncture. Inappropriate selection of sham acupuncture controls, rigorous RCT research models, and incorrect interpretation of results may contribute to negative evidence. Evaluating and disregarding the holistic efficacy of acupuncture with an explanatory RCT model based on evaluation drugs may be unwise. Moreover, sham acupuncture is often proven to be non-inert, unreasonable, and with low fidelity. Pitfalls of the explanatory RCT model and sham acupuncture design should be avoided. Establishing a new evaluation system that is in line with the clinical characteristics of acupuncture and obtaining high-quality evidence are difficult but promising tasks.

Keywords： chronic low back pain sham acupuncture acupuncture methodology therapeutic evaluation

HTML PDF Collect

Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2, Pages 208-224 doi: 10.1007/s11709-011-0111-0

Abstract: To improve the understanding on the failure behavior and its anchoring effect of weak-broken rock slope

Keywords： progressive failure weak-broken rock slope model test bolt

HTML PDF Collect

New progress of Chinese rock engineering

Qian Qihu

Strategic Study of CAE 2010, Volume 12, Issue 8, Pages 37-48

Abstract:

Some of ground-breaking achievements of Chinese rock engineering are described in the paper. In the field of hydropower construction, the stability and monitoring technology of ship lock slope of the Three Gorges, stability and supporting technologies for high slope in deep river valley and hydropower projects and stability technology of underground large-span high side-wall caverns group were introduced. In highway and railway construction, the construction technology for passing through perennial frozen areas of Qinghai-Tibet railway, supporting technology for squeezed large deformation in Wushaoling Tunnel, construction technology of high-cold high-altitude Fenghuo Mountain tunnel and Erlang Mountain tunnel are presented, as well as geological prediction techniques for karst area tunnels. As for mining technology, a new set of coal mine roadway supporting technology system, mining technology for mixture of gas and low permeability coal seams without pillar, and safe and efficient mining technology for deep open pit were introduced. In addition, the new technology of rock anchorage and fine blasting technology were also described.

Keywords： rock engineering hydropower engineering supporting technology geological forecasting anchoring technology