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Tolerance Analysis of Over-Constrained Assembly Considering Gravity Influence: Constraints of Multiple Planar Hole-Pin-Hole Pairs

Over-constrained assembly of rigid parts is widely adopted in aircraft assembly to yield higher stiffness and accuracy of assembly. Unfortunately, the quantitative tolerance analysis of over-constrained assembly is challenging, subject to the coupling effect of geometrical and physical factors. Especially, gravity will affect the geometrical gaps in mechanical joints between...

A Facile Approach for the Preparation of Nano-size Zinc Oxide in Water/Glycerol with Extremely Concentrated Zinc Sources

A facile process to prepare zinc oxide (ZnO) nanoparticles from an aqueous zinc chloride (ZnCl2) solution and an aqueous hydroxide solution under a glycerol stabilizer at room temperature was developed. ZnCl2 aqueous solutions as concentrated as 65–80 wt% were used as the concentrated zinc source. The concentration of ZnCl2 solutions and the molar ratio of glycerol to Zn2+ had...

Anisotropy of Single-Crystal Silicon in Nanometric Cutting

The anisotropy exhibited by single-crystal silicon in nanometric cutting is very significant. In order to profoundly understand the effect of crystal anisotropy on cutting behaviors, a large-scale molecular dynamics model was conducted to simulate the nanometric cutting of single-crystal silicon in the (100)[0–10], (100)[0-1-1], (110)[−110], (110)[00–1], (111)[−101], and (111...

Elliptical polarization of near-resonant linearly polarized probe light in optically pumped alkali metal vapor

Optically pumped alkali metal atoms currently provide a sensitive solution for magnetic microscopic measurements. As the most practicable plan, Faraday rotation of linearly polarized light is extensively used in spin polarization measurements of alkali metal atoms. In some cases, near-resonant Faraday rotation is applied to improve the sensitivity. However, the near-resonant...

Adverse orienting effects on visual working memory encoding and maintenance

Visual working memory (VWM) representations can be strengthened by pre-cues presented before, and retro-cues presented after, the memory display, providing evidence that attentional orienting plays a role in memory encoding and maintenance. It is unknown whether attentional orienting to VWM stimuli can also have adverse effects (known as inhibition of return; IOR), as has been...

Preparation of Zinc Oxide-Starch Nanocomposite and Its Application on Coating

A new production method of zinc oxide (ZnO)-starch nanocomposite was invented in this study. Starch was dissolved in zinc chloride (ZnCl2) solution (65 wt%) at 80 °C. Then, ZnO-starch nanocomposite was achieved when the pH of the solution was adjusted to 8.4 by NaOH solution (15 wt%). ZnO nanoparticles were also obtained when the generated ZnO-starch nanocomposite was calcined at...

Predictive remapping gives rise to environmental inhibition of return

Neurons in various brain regions predictively respond to stimuli that will be brought to their receptive fields by an impending eye movement. This neural mechanism, known as predictive remapping, has been suggested to underlie spatial constancy. Inhibition of return (IOR) is a bias against recently attended locations. The present study examined whether predictive remapping is a...

Origin of Structural Transformation in Mono- and Bi-Layered Molybdenum Disulfide

, University of Electronic Science and Technology of China, Chengdu, 610054, P.R. ChinaXiaoli Sun, Zhiguo Wang, Zhijie Li & Y. Q. FuDepartment of Physics and Electrical Engineering, Faculty of Engineering and ... Environment, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UKY. Q. Fu AuthorsSearch for Xiaoli Sun in:Nature Research journals • PubMed • Google ScholarSearch for Zhiguo Wang in:Nature Research

The study of statistical methods for evaluating the comparability of routine chemistry analytes among 3 routine laboratory measurement systems in China

Chuanbao Zhang Falin He Shuai Yuan Zhiguo Wang Background: Clinical laboratory tests are important for clinicians to make diagnostic decisions, but discrepancies may directly lead to incorrect diagnosis. We

Environment- and eye-centered inhibitory cueing effects are both observed after a methodological confound is eliminated

, ChinaTao He, Yun Ding & Zhiguo Wang AuthorsSearch for Tao He in:Nature Research journals • PubMed • Google ScholarSearch for Yun Ding in:Nature Research journals • PubMed • Google ScholarSearch for Zhiguo ... manuscript. All authors reviewed and accepted the manuscript. Competing interests The authors declare no competing financial interests. Corresponding author Correspondence to Zhiguo Wang. Rights and

Inhibitory cueing effects following manual and saccadic responses to arrow cues

; Inhibition of return; Eye movements; Cueing paradigm; Inhibitory cueing effects - * Zhiguo Wang A peripheral onset cue can briefly capture attention and facilitate responses to targets at the same location

Distractor Evoked Deviations of Saccade Trajectory Are Modulated by Fixation Activity in the Superior Colliculus: Computational and Behavioral Evidence

Previous studies have shown that saccades may deviate towards or away from task irrelevant visual distractors. This observation has been attributed to active suppression (inhibition) of the distractor location unfolding over time: early in time inhibition at the distractor location is incomplete causing deviation towards the distractor, while later in time when inhibition is...

Safety and Efficacy Studies of Vertebroplasty, Kyphoplasty, and Mesh-Container-Plasty for the Treatment of Vertebral Compression Fractures: Preliminary Report

To evaluate the clinical safety and efficacies of percutaneous vertebroplasty (PVP), percutaneous kyphoplasty (PKP), and percutaneous mesh-container-plasty (PMCP) for the treatment of vertebral compression fractures (VCFs), a retrospective study of 90 patients with VCFs who had been treated by PVP (n = 30), PKP (n = 30), and PMCP (n = 30) was conducted. The clinical efficacies of...

Feedforward and Feedback Control Performance Assessment for Nonlinear Systems

© 2014 Zhiguo Wang and Jun Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium

Influence of cutting parameters on the depth of subsurface deformed layer in nano-cutting process of single crystal copper

Large-scale molecular dynamics simulation is performed to study the nano-cutting process of single crystal copper realized by single-point diamond cutting tool in this paper. The centro-symmetry parameter is adopted to characterize the subsurface deformed layers and the distribution and evolution of the subsurface defect structures. Three-dimensional visualization and measurement...

MIAT Is a Pro-fibrotic Long Non-coding RNA Governing Cardiac Fibrosis in Post-infarct Myocardium

University, Harbin, P.R ChinaXuefeng Qu, Yue Du, You Shu, Ming Gao, Fei Sun, Shenjian Luo, Ti Yang, Linfeng Zhan, Yin Yuan, Wenfeng Chu, Zhenwei Pan, Zhiguo Wang, Baofeng Yang & Yanjie LuNorthern Translational ... • Google ScholarSearch for Wenfeng Chu in:Nature Research journals • PubMed • Google ScholarSearch for Zhenwei Pan in:Nature Research journals • PubMed • Google ScholarSearch for Zhiguo Wang in:Nature

Molecular dynamics and principal components of potassium binding with human telomeric intra-molecular G-quadruplex

molecular dynamics simulation of G-quadruplex with sodium ions; sim-Na2, the second molecular dynamics simulation of G-quadruplex with sodium ions. COMPLIANCE WITH ETHICS GUIDELINES Zhiguo Wang, Ruping Chen

Analogy of transistor function with modulating photonic band gap in electromagnetically induced grating

Zhang & Yanpeng ZhangSchool of Science, Xi’an Jiaotong University, Xi’an 710049, ChinaZhiguo Wang & Hong Gao AuthorsSearch for Zhiguo Wang in:Nature Research journals • PubMed • Google ScholarSearch for ... . Corresponding authors Correspondence to Zhiguo Wang or Yanpeng Zhang. Rights and permissions This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third