The Guidebook and the Medicine Pole: Staging Memory at a Nineteenth Century Battle Site in the American West by Wendy Harding, Jacky Martin

“…This article examines the way in which it presents one of these features, «Captain Jack’s Stronghold», the site of a confrontation between the U.S. army and a small band of Modoc Indians that took place in 1872-73. …”
Get full text

Development of Concave-convex Tooth Chainless Traction Walking System of Shearer by Guang Wang

“…Abstract The rectangular coordinate equation of the concave-convex gear is established， the convex tooth surface is simulated by Matlab， the three-dimensional model of the gear-rail system is established according to the tooth profile， and the stress state is analyzed. The contact and bending strength are analyzed in Ansys software， and the kinematics performance is analyzed by Adams software. …”
Get full text

Child with Deletion 9p Syndrome Presenting with Craniofacial Dysmorphism, Developmental Delay, and Multiple Congenital Malformations by Nirmala D. Sirisena, U. Kalpani S. Wijetunge, Ramya de Silva, Vajira H. W. Dissanayake

“…This finding contributes to the widening of the spectrum of phenotypic features associated with deletion 9p syndrome.…”
Get full text

Vibration Characteristic Analysis of Differential Reducer Gear Pair Considering Random Manufacturing Error by Lingsong Fan, Aihua Ren, Zhangdong Sun, Nan Zhang

“…In order to study the influence of random manufacturing error on the vibration characteristics of differential gear drive system of a new energy vehicle，the Lagrange energy method is used to establish the bending torsion shaft coupling vibration dynamic model of differential gear drive under multi-source time-varying excitation. …”
Get full text

Analysis of Tooth Deflection of Flexspline and Its Influence on Harmonic Drive by Liang Yong, Fan Yuanxun

“…The meshing interference caused by tooth deflection occurs earlier in the non working side of the tooth. The meshing interference makes the force of the flexspline increase,and produces periodic bending deformation of the flexspline,which may make fatigue crack. …”
Get full text

A Novel CP Horn Antenna with Switchable Polarization by Single Port Feeding by Yangzhen Huang, Junping Geng, Xianling Liang, Ronghong Jin, Xudong Bai

“…The antenna is composed of a coaxial-waveguide converter and a balance-cavity, a horn, a square-to-circular waveguide transition, and a stepped-septum polarizer, which simplify the feeding and can work on the left-hand or right-hand circular polarizations by manual exchanging the mounting position of the coaxial-waveguide converter and the balance-cavity. …”
Get full text

Distributed network management system with load balancing by SUN Yan-tao1, YANG Fang-nan1, SHI Zhi-qiang3

“…Based on the latest researches on physical topology, a distributed network management system named D-CBNMS with load balancing was proposed.Firstly, the system had very good scalability to extend the management scale by dynamically increase manage nodes.Secondly, it had the ability of fine-granularity load-balancing to adjust the load of management nodes.Thirdly, it had topology-awareness ability that allocates management tasks to the nearest management node, utilizing the detailed physical topology.D-CBNMS had been applied to the management of CBISNS（community broad-band integrated services network system）, which was a total solution for CPN（customer premises network）.Experiments show that D-CBNMS can reduce effectively the bandwidth occupied by management data.…”
Get full text

Bearing Fault Signal Analysis Based on an Adaptive Multiscale Combined Morphological Filter by Chun Lv, Peilin Zhang, Dinghai Wu, Bing Li, Yunqiang Zhang

“…Both simulation and experimental results show that the adaptive multiscale combined morphological filter can remove noise more thoroughly and retain details of the fault signal better than the dual-tree complex wavelet filter, traditional morphological filter, adaptive singular value decomposition method (ASVD), and improved switching Kalman filter (ISKF). …”
Get full text

Multi-objective Optimization Design of an Aviation Split Path Transmission System by Zhao Ning, Fu Chenxi, Zhao Yongzhi, Fu Bibo

“…The promoting the safety performance and lightweight are considered as the objectives,a multi-objective optimization design of an aviation split path transmission system is conducted.To measure the safety performance of the system,gear contact and bending fatigue strength are computed.Afterwards,a multi-objective optimization model that includes maximum safety factors and minimum mass is developed,with the system parameters selected as design variables.Considering the system requirements for load sharing,a dynamics model of the split path transmission system is established so that the load sharing characteristics can be quantifiably measured and restricted.Non-dominated Sorting Genetic Algorithm II（NSGA-II）is adopted to solve the model.The results show that the method promoted can effectively improve the safety performance and reduce the weight at the same time.…”
Get full text

Research of Fault Diagnosis Method of Rolling Bearing based on CEEMDAN-DRT by Bie Fengfeng, Gu Sheng, Pang Mingjun, Guo Yue, Yang Gang

“…Aiming at the feature extraction for the rolling bearing，a fault diagnosis method based on CEEMDAN adaptive denoising combining with DRT （demodulated resonance technology） is presented.Firstly，the original vibration signal is decomposed into several components with CEEMDAN adaptively，and the reconstruction is performed on regarding the correlation coefficient method to realize the purpose of eliminating noise.Then，the reconstructed signal is analyzed by spectral kurtosisto to achieve the frequency band of the impact component.Based on this，a bandpass filter is designed for the reconstructed signal.Finally，the filtered signals are analyzed by energy Hilbert envelope spectrum.With reference on the characteristic frequency of the rolling bearing failure modes，the pattern of the bearing is recognized.The effectiveness of the method is demonstrated by dynamics simulation and rolling bearing experiments.The result shows that the method can be used to identify the fault information of the rolling bearings effectively.…”
Get full text

Comparative Analysis of Meshing Characteristics Between Point-line Meshing Gears and Involute Gears by Tang Yu, Chang Shan, Yang Long, Wang Zhiqiang

“…Taking point-line meshing gears and involute gears as the research object, a simulation model of two kinds of meshing gears is established, the meshing characteristics of point-line meshing gears and involute gears in transmission error, tooth surface load distribution, tooth surface sliding speed distribution, tooth surface contact stress distribution, tooth root bending stress distribution, meshing contact trace analysis are comprehensively compared and analyzed. …”
Get full text

Measurement and analysis on channel large scale fading characteristics of conference room at 15 GHz by Jun SUN, Lijuan XIE, Hui XU, Shunshun LIU

“…The shortage of traditional mobile cellular band makes the development of higher frequency paid more and more attention. …”
Get full text

Thermal Aeroelastic Tailoring for Laminated Panel with Lamination Parameters and JAYA Algorithm by Peng Jin, Qihao Zheng, Wei Wei

“…Equivalent membrane and bending coefficients of thermal expansions for symmetric laminated panel are derived and represented with lamination parameters using Classical Laminated Plate Theory. …”
Get full text

Research on Calculation Method of “Gantry” Anti-floating Structure Underneath a River Channel in Shenzhen Metro Line 9 by LU Bin, WANG Guojian

“…A river channel in Shenzhen intersects with the tunnel of Metro Line 9 vertically,with the overburden thickness of 1.87 m only,and “gantry” pile raft structure to assist anti-floating.This paper simplifies the force model of the “gantry” anti-floating pile raft structure,analyzes the internal force and displacement of the structure with the structural mechanics method,and verifies and rechecks them by the finite element method.The results show that the bending moment of “gantry” pile raft obtained by the structural mechanics is similar to that calculated by the finite element method,and the shear force and displacement are larger than those calculated by the finite element method.The “gantry” anti-floating pile raft structure is widely used.In addition,the calculation method in this paper can provide a reference for similar projects.…”
Get full text

SYSTEM ANALYSIS OF THE FOUR-PRONG LEGGED ACCELEROMETER BASED ON TRAPEZOIDAL VARIABLE CROSS-SECTION BEAM by LU KunLei, SUN JiangHong, YI YuanLin, DU HongChen

“…The trapezoidal variable cross-section beam rigidity-size relation was deduced with a bending mathematical model. The size requirements were raised by strength. …”
Get full text

Research on theoretical ultimate value of 5G flow residence ratio based on big data by Hongjia LIU, Bei LI, Wei ZHAO, Guoping XU, Xinyan WANG

“…The 5G flow residence ratio is an important indicator used by communication operators to evaluate the coverage capacity of 5G networks, and it is also an important starting point for the networks’ planning, optimization, maintenance and operation.To ensure user perception, the actual wireless transmission influencing factors, existing network structure and network coordination strategy, etc., need to be considered.The resident capacity of a 5G network in the 3.5 GHz frequency band was evaluated, analyzed and calculated, and the theoretical ultimate value of the 5G traffic resident ratio based on the analysis of network and users’ big data was put forward, which explained the positive relationship between user perception and residence ratio, and provided a reference for the reasonable theoretical ultimate value of 5G traffic resident ratio.…”
Get full text

Elastic Module Study of the Radial Section of Guadua angustifolia Kunth Variety Bicolor by J. I. Cardenas, C. Vargas-Hernández

“…The Raman spectroscopy analysis showed bands associated with hemicellulose, cellulose (carbon-carbon bonds), hydroxides carbon, and lignin. …”
Get full text

Characterization of the Manufacturing Processes to Grow Triple-Junction Solar Cells by N. A. Kalyuzhnyy, V. V. Evstropov, V. M. Lantratov, S. A. Mintairov, M. A. Mintairov, A. S. Gudovskikh, A. Luque, V. M. Andreev

“…Photovoltaic properties of the III-V/Ge narrow-band subcell of the triple-junction solar cells have been investigated. …”
Get full text

Photocatalytic Antibacterial Performance of Glass Fibers Thin Film Coated with N-Doped SnO2/TiO2 by Peerawas Kongsong, Lek Sikong, Sutham Niyomwas, Vishnu Rachpech

“…Both N-doped and undoped thin films of 3SnO2/TiO2 composite were prepared, by sol-gel and dip-coating methods, and then calcined at 600°C for 2 hours. …”
Get full text

The First Report of an Intraperitoneal Free-Floating Mass (an Autoamputated Ovary) Causing an Acute Abdomen in a Child by Ibrahim Uygun, Bahattin Aydogdu, Mehmet Hanifi Okur, Selcuk Otcu

“…At surgery, the patient had no right ovary and the right tube ended in a thin band that pressed on the terminal ileum causing partial small intestine obstruction and acute abdomen. …”
Get full text