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World Journal of Acupuncture-Moxibustion 2024年第3期34卷 237-241页

作者： Hao-ran CHU Wei-hong LIU Jun YANG xiao-dong WU xiao-ming wang Jing-ji wang Yun LIU Jin HU The Second Affiliated Hospital of Anhui University of Chinese Medicine Hefei 230001China Institute of Acupuncture and Moxibustion China Academy of Chinese Medical SciencesBejing 100091China The First Affiliated Hospital of Anhui University of Chinese Medicine Hefei 230601China Japan TCM&Mi Association Tokyo135-0061Japan

Technical Benchmark of Acupuncture and Moxibustion:Moxibustion was organized by the World Federation of Acupuncture-Moxibustion Societies and the revision was led by Anhui University of Chinese *** document was first issued in 2013,known as Moxibustion *** technical benchmark of moxibustion include scope,normative reference,terms and definitions,operation and requirement and *** article introduces the above contents,explains the difficulties in the revision and give the suggestions for the application and popularization of this standard.

关键词： Acupuncture Moxibustion moxibustion

On Douglas General(α,β)-metrics

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Acta Mathematica Sinica,English Series 2017年第7期33卷 951-968页

作者： xiao ming wang Ben Ling LI Department of Mathematics Ningbo UniversityNingbo 315211P.R.China

Douglas metrics are metrics with vanishing Douglas curvature which is an important projective invariant in Finsler geometry. To find more Douglas metrics, in this paper we consider a class of Finsler metrics called general （α, β）-metrics, which are defined by a Riemannian metric and a . We obtain the differential equations that characterizes these metrics with vanishing Douglas curvature. By solving the equivalent PDEs, the metrics in this class are totally determined. Then many new Douglas metrics are constructed.

关键词： Finsler metric general (α β)-metrics Douglas metric Douglas curvature

Theoretical analysis of the sound absorption characteristics of periodically stiffened micro-perforated plates

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Acta Mechanica Sinica 2014年第5期30卷 714-726页

作者： Hai-An Zhou xiao-ming wang Yu-Lin Mei School of Mechanical Engineering Shandong University of Technology School of Mechanical Engineering Dalian University of Technology School of Automotive Engineering Dalian University of Technology

The vibro-acoustic responses and sound absorption characteristics of two kinds of periodically stiffened micro-perforated plates are analyzed theoretically. The connected periodical structures of the stiffened plates can be ribs or block-like structures. Based on fundamental acoustic formulas of the micro-perforated plate of Maa and Takahashi, semi-analytical models of the vibrating stiffened plates are developed in this paper. Approaches like the space harmonic method, Fourier transforms and finite element method （FEM） are adopted to investigate both kinds of the stiffened plates. In the present work, the vibro-acoustic responses of micro-perforated stiffened plates in the wavenumber space are expressed as functions of plate displacement amplitudes. After approximate numerical solutions of the amplitudes, the vibration equations and sound absorption coefficients of the two kinds of stiffened plates in the physical space are then derived by employing the Fourier inverse transform. In numerical examples, the effects of some physical parameters, such as the perforation ratio, incident angles and periodical distances etc., on the sound absorption performance are examined. The proposed approaches are also validated by comparing the present results with solutions of Takahashi and previous studies of stiffened plates. Numerical results indicate that the flexural vibration of the plate has a signif- icant effect on the sound absorption coefficient in the water but has little influence in the air.

关键词： Absorption- Stiffened- Micro-perforated Spaceharmonic - Finite element method

Influence of control strategy on stability of dual-spin projectiles with fixed canards

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Defence Technology（防务技术） 2018年第6期14卷 709-719页

作者： Yu wang xiao-ming wang Ji-yan Yu Nanjing University of Science & Technology School of Mechanical Engineering

Existing literature has shown that the control force at the nose could cause dynamic instability for controlled projectiles. To lower the adverse impact on the dual-spin projectile with fixed canards under the premise of meeting guidance system requirements, the influence of control moment provided by a motor on the flight stability is analyzed in this paper. Firstly, the effect of the rolling movement on stability is analyzed based on the stability criterion derived using the Hurwitz stability theory. Secondly, the evaluation parameters combining the features of different control periods that could assess the variation of stability features after the motor torque are obtained. These effective formulas are used to indicate that, to reduce the flight instability risks, the stabilized rolling speed of roll speed keeping period should be as small as possible; the variation trend of motor torque during the rolling speed controlling period and the roll angle of the forward body during roll angle switching period are recommended corresponding to the projectile and trajectory characteristics. Moreover,detailed numerical simulations of 155 mm dual-spin projectile are satisfactory agreement with the theoretical results.

关键词： Dual-spin projectile Fixed canards Control strategy Flight stability

Moving horizon based wavelet de-noising method of dual-observed geomagnetic signal for nonlinear high spin projectile roll positioning

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Defence Technology（防务技术） 2020年第2期16卷 417-424页

作者： Ting-ting Yin Fang-xiu Jia xiao-ming wang ZNDY of Ministerial Key Laboratory Nanjing University of Science and TechnologyNanjing210094China

Phase-frequency characte ristics of approximate sinusoidal geomagnetic signals can be used fo r projectile roll positioning and other high-precision trajectory correction *** sinusoidal geomagnetic signal deforms in the exposed and magnetically contaminated *** order to preciously recognize the roll information and effectively separate the noise component from the original geomagnetic sequence,based on the error source analysis,we propose a moving horizon based wavelet de-noising method for the dual-observed geomagnetic signal filtering where the captured rough roll frequency value provides reasonable wavelet decomposition and reconstruction level selection basis for sampled sequence;a moving horizon window guarantees real-time performance and non-cumulative calculation *** complete geomagnetic data in full ballistic range and three intercepted paragraphs are used for performance *** positioning performance of the moving horizon wavelet de-noising method is compared with the band-pass *** results show that both noise reduction techniques improve the positioning accuracy while the wavelet de-noising method is always better than the band-pass *** results suggest that the proposed moving horizon based wavelet de-noising method of the dual-observed geomagnetic signal is more applicable for various launch conditions with better positioning performance.

关键词： High-spin projectile roll positioning Dual-observed geomagnetic signal Wavelet de-noising Discrete wavelet transform

Genetic diversity and population structure of a Sichuan sika deer(Cervus sichuanicus) population in Tiebu Nature Reserve based on microsatellite variation

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Zoological Research 2014年第6期35卷 528-536页

作者： Ya HE Zheng-Huan wang xiao-ming wang School of Life Sciences East China Normal University Shanghai Science & Technology Museum

Cervus sichuanicus is a species of sika deer （Cervus nippon Group）. To date, research has mainly focused on quantity surveying and behavior studies, with genetic information on this species currently deficient. To provide scientific evidence to assist in the protection of this species, we collected Sichuan sika deer fecal samples from the Sichuan Tiebu Nature Reserve （TNR） and extracted DNA from those samples. Microsatellite loci of bovine were used for PCR amplification. After GeneScan, the genotype data were used to analyze the genetic diversity and population structure of the Sichuan sika deer in TNR. Results showed that the average expected heterozygosity of the Sichuan sika deer population in TNR was 0.562, equivalent to the average expected heterozygosity of endangered animals, such as Procapra przewalsldi. Furthermore, 8 of 9 microsatellite loci significantly deviated from the Hardy-Weinberg equilibrium and two groups existed within the Sichuan sika deer TNR population. This genetic structure may be caused by a group of Manchurian sika deer （Cervus hortulorum） released in TNR.

关键词： Sichuan sika deer Microsatellite Genetic diversity Population structure

Fabrication,microstructure and mechanical properties of Mg matrix composites reinforced by high volume fraction of sphere TC4 particles

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Journal of Magnesium and Alloys 2016年第4期4卷 286-294页

作者： Chun-Lei Zhang xiao-Jun wang xiao-ming wang xiao-Shi Hu Kun Wu School of Materials Science and Engineering Harbin Institute of TechnologyHarbinChina

A novel liquid settling method was investigated and applied to fabricate TC4 spherical particle reinforced AZ91 alloy matrix *** method was called liquid state settling technique in which TC4 particles would settle down under the force of *** volume fraction(50%)particle reinforced AZ91 composites could be easily obtained via this novel *** is difficult to achieve for other traditional liquid fabrication *** addition,there was a good dispersion of TC4 particles in the AZ91 matrix and no clusters were found,which indicate that this method was *** reaction occurred and the reaction product was confirmed to be *** kinds of pre-dispersion technologies were used before the settling process and different interfacial microstructures were *** calculation and experimental results both indicated that the interfacial product which was embedded in the matrix strengthened the composites and improved the tensile strength.

关键词： Magnesium matrix composites TC4 particles Fabrication processing Interfacial reaction

Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile

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Defence Technology（防务技术） 2016年第2期12卷 124-128页

作者： Yu wang Jie CHENG Ji-yan YU xiao-ming wang 202 School of Mechanical Engineering Nanjing University of Science and Technology Nanjing Jiangsu Province China

A roll-decoupled course correction fuze with canards can improve the hit accuracy of conventional unguided ammunitions. The fuze increases accuracy by reducing the effect of angular and translational motion produced by the cyclical yawing forces applied on the projectile. In order to investigate the influence of yawing forces on angular motion, a theoretical solution of the total yaw angle function with the cyclical yawing forces is deduced utilizing the 7 degrees of freedom(7-DOF) model designed for this calculation. Furthermore, a detailed simulation is carried out to determine the influence rules of yawing force on angular motion. The calculated results illustrate that, when the rotational speed of the forward part is close to the initial turning rate, the total yaw angle increases and the flight range decreases sharply. Moreover, a yawing force at an appropriate frequency is able to correct the gun azimuth and elevation perturbation to some extent.

关键词：偏航角角运动弹道特性弹丸频率双自旋弹道修正引信 6-DOF

Research on the intermediate phase of 40CrMnSiB steel shell under different heat treatments

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Defence Technology（防务技术） 2021年第3期17卷 1032-1041页

作者： Wei-bing Li Zhi-chuang Chen xiao-ming wang Wen-bin Li ZNDY of Ministerial Key Laboratory Nanjing University of Science and TechnologyNanjing210094China

In this study, 40 Cr Mn Si B steel cylindrical shells were tempered at 350, 500 and 600 ℃ to study the effect of tempering temperature on the dynamic process of expansion and fracture of the metal shell. A midexplosion recovery experiment for the metal cylinder under internal explosive loading was designed, and the wreckage of the casings at the intermediate phase was obtained. The effects of different tempering temperatures on the macroscopic and microscopic fracture characteristics of 40 Cr Mn Si B steel were studied. The influence of tempering temperatures on the fracture characteristic parameters of the recovered wreckage were measured and analyzed, including the circumferential divide size, the thickness and the number of the circumferential divisions. The results show that as the tempering temperature was increased from 350 to 600 ℃, at first, the degree of fragmentation and the fracture characteristic parameters of the recovered wreckage changed significantly and then became essentially consistent. Scanning electron microscopy analysis revealed flow-like structure characteristics caused by adiabatic shear on different fracture surfaces. At the detonation initiation end of the casing, fracturing was formed by tearing along the crack, which existed a distance from the initiation end and propagated along the axis direction. In contrast, the fracturing near the middle position consists of a plurality of radial shear fracture units. The amount of alloy carbide that was precipitated during the tempering process increased continuously with tempering temperature, leading to an increasing number of spherical carbide particles scattered around the fracture surface.

关键词： Explosive mechanics Mid-explosion recovery experiment Explosion and fracture Heat treatment SEM(Scanning electron microscope)fracture analysis

Successful endoscopic extraction of a proximal esophageal foreign body following accurate localization using endoscopic ultrasound: A case report

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World Journal of Clinical Cases 2019年第10期7卷 1230-1233页

作者： xiao-ming wang Shan Yu Xin Chen Department of Gastroenterology Panzhihua Central Hospital

BACKGROUND It is rare to find fish bones completely embedded in the wall of the esophagus with endoscopic findings similar to those of submucosal *** of the patients had the foreign body removed by thoracotomy or thoracoscopy in the past,which resulted in great *** SUMMARY We report a 58-year-old woman who experienced dysphagia for 6 d after eating *** computed tomography(CT)and endoscopic ultrasonography(EUS)indicated a fish bone completely embedded in the wall of the esophagus with endoscopic findings similar to those of submucosal *** results of CT reconstruction and EUS suggested that the fish bone was parallel to the longitudinal axis of the *** performed a longitudinal mucosal incision from the highest point of the uplift by using an Olympus dual knife to find the fish ***,no fish bone was found,so we extended the incision and endoscopic submucosal dissection(ESD)technique was used to detect and remove the fish bone *** The extraction of fish bone via ESD immediately after the injection of methylene blue into the submucous membrane under EUS guidance to obtain accurate localization of the foreign body may be the best treatment for such patients.

关键词： Fish bone Endoscopic mucosal dissection Upper esophageal wall Case report