Results 21 to 30 of about 471,455 (198)
Complex Manifolds, 2023 Let XX be a simple normal crossing (SNC) compact complex surface with trivial canonical bundle which includes triple intersections. We prove that if XX is dd-semistable, then there exists a family of smoothings in a differential geometric sense. This can
Doi Mamoru, Yotsutani Naoto
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Generalized Riemann-Liouville fractional Bézier curve and its applications in engineering surface
Alexandria Engineering Journal, 2023 Modeling of free-form curves and surfaces is vital in the manufacturing industry and engineering. Curves and surfaces that have flexible shapes and adjustable lengths and sizes are a necessity to fulfill the needs of the manufacturing industry.
Syed Ahmad Aidil Adha Said Mad Zain +2 more
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The Effect of Drag Finishing on Additively Manufactured Customized Dental Crowns
MetalsCobalt–chromium (CoCr) alloys are frequently used to produce customized dental applications such as crowns, bridges, or prostheses. These medical products have anatomical forms, and can be effectively manufactured using the laser-based powder bed fusion (
Cosmin Cosma +7 more
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MILLING OF COMPLEX SURFACES [PDF]
Fiabilitate şi Durabilitate, 2018 In the article are considered principle kinematic schemes of cutting for perform the machining of recessed and convex rotating surfaces. The mathematical dependencies determining the trajectory character described by the relative motion of the ...
Evstati LEFTEROV, Tanya AVRAMOVA
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Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
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MachinesThis paper presents a control method for achieving precise robotic contact on complex and curved surfaces in manufacturing and automation. The method combines smooth trajectory planning with contact force control to improve finishing accuracy while ...
Hosham Wahballa +4 more
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FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
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Automatic Robot Trajectory for Thermal-Sprayed Complex Surfaces
Advances in Materials Science and Engineering, 2018 Automatic trajectory generation for thermal spray application is highly desirable for today’s automotive manufacturing. Automatic robot trajectory for free-form surfaces to satisfy the coating uniform is still highly challenging due to the complex ...
Dandan Fang +6 more
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Almost Complex Surfaces in the Nearly Kähler SL(2,ℝ) × SL(2,ℝ)
Mathematics, 2020 The space S L ( 2 , R ) × S L ( 2 , R ) admits a natural homogeneous pseudo-Riemannian nearly Kähler structure. We investigate almost complex surfaces in this space.
Elsa Ghandour, Luc Vrancken
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