Results 31 to 40 of about 363,653 (297)
Сучасні інформаційні системи, 2021 Study subject. The article proposes and investigates a method for increasing the accuracy of determination of the distance and the obstacle geometric parameters based on object contours determination using a computer vision system that uses low ...
Валерій Барсов +2 more
doaj +1 more source
Feed rate modeling in circular–circular interpolation discontinuity for high-speed milling [PDF]
, 2013 In this paper, a modeling approach is presented in order to evaluate feed rate during a circular interpolation in high-speed milling. The developed model depends on the type of discontinuity and the kinematic performance of the machine tool.
B. Gassara +13 more
core +4 more sources
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Optics Express, 2022 In order to improve the accuracy of linear stages, a compact, portable and easy installation of a six-degree-of-freedom (6DOF) geometric error measurement system, in which two mirrors with special position and orientation are innovatively regarded as the sensitive elements of the roll error, is proposed.
Yindi Cai +4 more
openaire +2 more sources
Virtual Rephotography: Novel View Prediction Error for 3D Reconstruction
, 2016 The ultimate goal of many image-based modeling systems is to render photo-realistic novel views of a scene without visible artifacts. Existing evaluation metrics and benchmarks focus mainly on the geometric accuracy of the reconstructed model, which is ...
Beljan, Mate +5 more
core +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
3D scanning of cultural heritage with consumer depth cameras [PDF]
, 2016 Three dimensional reconstruction of cultural heritage objects is an expensive and time-consuming process. Recent consumer real-time depth acquisition devices, like Microsoft Kinect, allow very fast and simple acquisition of 3D views.
Cappelletto, Enrico +2 more
core +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
Research on the error averaging effect of linear feed systems for precision machine tool
Ain Shams Engineering JournalThis paper presents a general and systematic approach for geometric error simulation modeling of machine tools due to the geometric errors arising from manufacturing and assembly, the error averaging mechanism of the linear feed system is investigated by
Guangming Sun +6 more
doaj +1 more source
Kinetoelastodynamics Modeling and Analysis of Spatial Parallel Mechanism
Shock and Vibration, 2015 The nonlinear elastodynamic modeling and analysis of the 4-UPS-UPU spatial 5-degree-of-freedom parallel mechanism are investigated. The kinetoelastodynamics theory is used to derive the elastic dynamic equations of 4-UPS-UPU spatial parallel mechanism ...
Xiulong Chen +4 more
doaj +1 more source