Results 31 to 40 of about 441,585 (267)
The mathematical model of the precessional gear and the process of generation of inclined teeth [PDF]
Journal of Engineering Science (Chişinău), 2020 The paper deals with the development of precessional gears with toothed gearing with concave-concave contact of inclined teeth. In order to increase the bearing capacity and the mechanical efficiency of the precessional gear, the contact of the teeth is ...
BOSTAN, Viorel +3 more
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Аграрная наука Евро-Северо-ВостокаIn modern agriculture, optimization of threshing of leguminous crop seeds is becoming an increasingly important topic. The question is how to improve the threshing process to increase yields and improve seed quality.
Z. A. Godzhaev, A. V. Kolesnikov
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Test and Optimization of Oilseed Rape (Brassica napus L.) Threshing Device Based on DEM
Agriculture, 2022 Gridded concave plate sieves are usually used for threshing operations of grain and oilseed crops. In response to the problems of high threshing loss rate and grain breakage rate when threshing oilseed rape, this research modified the threshing concave ...
Jun Wu +4 more
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First-order Design of a Reflective Viewfinder for Adaptive Optics Ophthalmoscopy [PDF]
, 2012 Adaptive optics (AO) ophthalmoscopes with small fields of view have limited clinical utility. We propose to address this problem in reflective instruments by incorporating a viewfinder pupil relay designed by considering pupil and image centering and ...
Dubra, Alfredo, Sulai, Yusufu N.
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Mining reasonable distance of horizontal concave slope based on variable scale chaotic algorithms
Open Physics, 2020 Horizontal concave slope structure is a common mining structure. It is the basis of mining safety to grasp the reasonable mining distance of horizontal concave slope. Therefore, based on variable scale chaotic algorithm, the reasonable mining distance of
Chen Shuzhao, Shang Tao, Han Liu
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Personality Neuroscience, 2021 The hollow-mask illusion is an optical illusion where a concave face is perceived as convex. It has been demonstrated that individuals with schizophrenia and anxiety are less susceptible to the illusion than controls. Previous research has shown that the
Vasileios Ioakeimidis +6 more
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Experimental investigation of the flow-induced vibration of a curved cylinder in convex and concave configurations [PDF]
, 2014 Experiments have been conducted to investigate the two-degree-of-freedom vortex-induced vibration (VIV) response of a rigid section of a curved circular cylinder with low mass-damping ratio.
Assi, Gustavo +3 more
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Cutting mechanism of a special 3D concave-shaped PDC cutter applicable to the Weiyuan shale
Journal of Petroleum Exploration and Production Technology, 2023 The Weiyuan shale gas field faces problems of long drilling cycles and high development costs. Improving the drilling efficiency of polycrystalline diamond compact bits in shale formations will significantly reduce the overall well cost and duration ...
Xiaohua Ke +5 more
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FEBS Open Bio, EarlyView.Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley +1 more source
Strongly Polynomial Primal-Dual Algorithms for Concave Cost Combinatorial Optimization Problems [PDF]
, 2012 We introduce an algorithm design technique for a class of combinatorial optimization problems with concave costs. This technique yields a strongly polynomial primal-dual algorithm for a concave cost problem whenever such an algorithm exists for the fixed-
Magnanti, Thomas L., Stratila, Dan
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