Reverse Design of Cycloid Tooth Profile Without Trapped Oil and Implementation Measures of Low Flow Ripple for Gear Pump by Yuncai Xia, Haibin Hao, Yin Mao

“…In order to solve the two structural problems of trapped oil and large flow ripple in gear pump and based on transmission advantages of cycloid gear and its forming principle，tooth number and radius factor of rolling circle which can best reflect pump performance are taken as structural parameters of cycloidal tooth profile，central angle，radius factor and pressure angle of addendum arc functional parameters of gear pump，a cycloid tooth profile with a contact ratio of 1 is constructed in a reverse way and the structural problem of large flow ripple of original single gear pair is solved by the construction of double gear pairs and minimization of ripple coefficient. …”
Get full text

Experimental Study for Influence of Surfactants Chemical Microstructures on Wetting Effect about Coal Dust in Tongchuan Mining Area by Youying Ma, Yuying Wang, Qingtao Zhang

“…The results showed that the contact angle of DDBAC on coal sample dust was the smallest. …”
Get full text

Lateral unicompartmental knee arthroplasty is an effective procedure for lateral post-meniscectomy knee osteoarthritis: a case–control study at a mean 7-year follow‐up by Tao Yang, Huaming Xue, Tong Ma, Tao Wen, Long Xue, Yihui Tu

“…The radiographic assessments included hip–knee–ankle (HKA) angle, mechanical lateral distal femoral angle (mLDFA), mechanical medial proximal tibial angle (mMPTA), and posterior tibial slope angle (PTSA). …”
Get full text

Exact Axially Symmetric Solution in f(T) Gravity Theory by Gamal G. L. Nashed

“…A general tetrad field with sixteen unknown functions is applied to the field equations of f(T) gravity theory. …”
Get full text

SOLUTION OF DIFFERENTIAL EQUATIONS OF INTERACTION BETWEEN CONICAL-HELICAL AGITATOR WITH MINERAL FERTILIZER by S. Nukeshev

“…In order to ensure continuous and reliable fertilizer dosing it is necessary to destruct bridges above exhaust ports and facilitate forced fertilizer feed to the spreader.The results of theoretical investigations on conical-helical agitator-bridge breaking cone of mineral fertilizers have made it possible to establish interdependence of the motion path of an elementary volume of mineral fertilizers along helical spiral coil of the agitator and its relative speed on functional and technological parameters such as cone-generating angle to its axis,  an angle of lead, a radius of helical surface, coefficients of external and internal friction and an angular velocity. …”
Get full text

Effect of Surface Treatment on Physical and Tensile Properties of Borassus Fruit Fibers by K. Boimau, J. Bale, N. P. G. Suardana, I. P. Lokantara, D. G. H. Adoe, Y. Pell

“…Otherwise, FTIR was used to identify the functional group before and after alkali treatment. …”
Get full text

Optical Beam Steering With an All-Silicon Particle Chain by Hao Li, Aimin Wu, Lixing You

Get full text

Double osteotomies with iliac crest bone allograft and distal fibular autograft to correct a severe pediatric ankle varus deformity: A case report by Lily Nguyen, DPM, Brian B. Nielsen, MD

“…These deformities often impair ambulatory function, lead to pain, and increase the risk of joint degeneration if left untreated. …”
Get full text

AAV-IKV mediated expression of decorin inhibits EMT and fibrosis in a murine model of Glaucoma and AAV-IKV transduction in Non-Human Primates by Pushpa Rao, Manish Mishra, Siobhan M. Cashman, David S. Walton, Rajendra Kumar-Singh

“…Abstract Primary open angle glaucoma (POAG) and infantile aphakic glaucoma (IAG) are significant contributors of vision loss in adults and infants respectively. …”
Get full text

Investigation of the October effect in very low-frequency (VLF) signals by M. Hansen, D. Banyś, M. Clilverd, D. Wenzel, T. Raita, M. M. Hoque

“…Although the amplitude of the received terrestrial VLF signal changes as a function of solar zenith angle over the course of the year, the VLF amplitude shows a distinctive sharp decrease around October, which is hence called the “October effect”. …”
Get full text

Determining Symmetry Properties of Gravitational Fields of Terrestrial Group Planets by R.A. Kascheev, I.O. Novlyanskaya

“…It is assumed that some particular symmetry of the density distribution function of the planetary body causes similar symmetry of its gravitational potential. …”
Get full text

HIGH PERFORMANCE TAPS FOR CUTTING THREADS IN DIFFICULT TO MACHINE MATERIALS by M. R. Akhmedova, R. V. Guseynov

“…This article explores in detail questions of instrument operation function of tapping internal threads in hard materials. …”
Get full text

Moiré collective vibrations in atomically thin van der Waals superlattices by Lijia Li, Jiajun Chen, Laigui Hu, Zhijun Qiu, Zhuo Zou, Ran Liu, Lirong Zheng, Chunxiao Cong

“…Upon mutual torsion of heterobilayers, we observe terahertz interlayer vibrations proportional to moiré periodicity as a periodic function of rotation angles, demonstrating moiré-tuned interlayer modes which couple to Coulomb-bound electron-hole pairs in interlayer moiré excitons. …”
Get full text

Dispersion kinks from electronic correlations in an unconventional iron-based superconductor by M.-H. Chang, S. Backes, D. Lu, N. Gauthier, M. Hashimoto, G.-Y. Chen, H.-H. Wen, S.-K. Mo, R. Valentí, H. Pfau

“…A key signature is dispersion kinks that can be observed in the spectral function as abrupt changes in velocity and lifetime of quasiparticles. …”
Get full text

A Combined Index of Steady-State Pattern Electroretinogram and Optical Coherence Tomography Improved the Detection of Early Glaucoma by Hwayeong Kim, Sangwoo Moon, EunAh Kim, Jinmi Kim, Jiwoong Lee

“… Introduction: The aims of the study were to evaluate the structure-function relationship between steady-state pattern electroretinogram (ssPERG), optical coherence tomography (OCT), and visual field (VF) tests and to investigate indicators that enhance the detection of preperimetric and early-stage primary open-angle glaucoma (POAG). …”
Get full text

Closely Spaced Multi-Target Association and Localization Using BR and AOA Measurements in Distributed MIMO Radar Systems by Zehua Yu, Ziyang Jin, Ting Sun, Jinshan Ding, Jun Li, Qinghua Guo

“…To address this, we formulate the objective function as a form of the product of certain local functions, and we design a factor graph-based iterative message-passing algorithm. …”
Get full text

Mercury Intrusion Effects Modelled in Pores with Axial Symmetry and Attenuated Cross Section by Isaac Kornhauser, Carlos Felipe, Juan Marcos Esparza, Armando Domínguez, Fernando Rojas

“…The study of Hg intrusion in axially symmetric pores modelled from a circular function, including a cross-sectional attenuation, unveils or ratifies some interesting effects. …”
Get full text

Development and Clinical Application of High-Magnification Electronic Endoscope by Fan WANG, Jiansong XIA, Hui YANG, Guofei YAN, Jiaying HE, Liqiang WANG

“…By selecting an appropriate initial retrofocus structure, the optimized modulation transfer function (MTF) curve of the zoom objective lens approaches the diffraction limit. …”
Get full text

Gait Perception via Actual and Estimated Pneumatic Physical Reservoir Output by Junyi Shen, Tetsuro Miyazaki, Swaninda Ghosh, Toshihiro Kawase, Kenji Kawashima

“…This enhanced clustering performance is subsequently leveraged in gait perception by incorporating Takagi–Sugeno fuzzy logic for joint angle estimation and a softmax activation function for walking condition recognition. …”
Get full text

Study on the Impact Resistance of Metal Flexible Net to Rock fall by Gaosheng Wang, Yunhou Sun, Ao Zhang, Lei Zheng, Yuzheng Lv, Huajie Wu, Yuanyou Yang

“…The research shows that the metal flexible net with proper inclination can bounce the impact rock fall out of the safe area and prevent rock fall falling on the metal flexible net, thus realizing the self-cleaning function. When the inclination angle of the metal flexible net is 15, 30, and 45 degrees, respectively, the bounce effect after impact is better, the remaining height is improved, the protection width is improved obviously, and the impact force is reduced. …”
Get full text