Results 61 to 70 of about 4,880 (252)

The Noise-Reduction Characteristics of Microstructure of Dragonfly Wing Leading Vein

open access: yesApplied Sciences, 2021
Dragonfly wings have many excellent functions, such as superhydrophobic, fatigue resistance, anti-reflection, etc. However, there are few reports on the low noise flight of dragonfly wings.
Shan Jiang   +6 more
doaj   +1 more source

RELATIONSHIP BETWEEN SERRATION AND MACROSCOPIC SLIDING SURFACE OF Al-MG ALLOY [PDF]

open access: yes, 2018
The addition of the plastic deformation due to tensile test to certain aluminum alloy sheet, show a discontinuous stress-strain diagram. In the tensile test, such continuous yielding is called serration, serratedflow, its first investigators, the ...
仲嶋 雄大
core  

Gut Microbial Topology and Metabolic Signatures Associated With Colorectal Neoplasia

open access: yesAdvanced Science, EarlyView.
The gut microbiota organizes into two robust association patterns linked to colorectal neoplasia risk. Topological shifts in microbial networks are associated with metabolite alterations and may shape host responses during disease development. ABSTRACT Alterations of gut microbial communities impact health.
Kai Song   +13 more
wiley   +1 more source

Epidermolysis bullosa acquisita: current diagnosis and therapy

open access: yesDermatology Reports, 2011
Epidermolysis bullosa acquisita (EBA) is an acquired, autoimmune subepidermal blistering disease with an approximate prevalence of 0,2/million people. The hallmark of EBA is the presence of autoantibodies (mainly IgG class) to anchoring fibril collagen ...
Christine R. Mehren, Robert Gniadecki
doaj   +1 more source

The precipitate evolution in friction stir welding of 2195-O Al–Li alloy

open access: yesJournal of Materials Research and Technology, 2023
The precipitate evolution of friction stir welding (FSW) 2195-O Al–Li alloy was analyzed by back scattered electron (BSE), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM).
Peng Chen   +7 more
doaj   +1 more source

Improved Deformability of Co‐Free Medium Entropy Oxides by Controlled Entropy Destabilization

open access: yesAdvanced Science, EarlyView.
Controlled entropy destabilization activates defect‐mediated plasticity in Co‐free (CuMgNiZn)O by promoting pre‐existing Cu‐rich secondary phases that serve as defect sources. Temperature‐dependent dislocation activity evolves from limited motion at room temperature to extensive glide and stacking‐fault formation at 600 °C, enabling improved plasticity
Chang Liu   +10 more
wiley   +1 more source

Mechanical Properties and Microstructure of a NiCrFeCoMn High-Entropy Alloy Deformed at High Strain Rates

open access: yesEntropy, 2018
The equiatomic NiCrFeCoMn high-entropy alloy prepared by arc melting has a single crystallographic structure. Mechanical properties and microstructure of the NiCrFeCoMn high-entropy alloy deformed at high strain rates (900 s−1 to 4600 s−1 ...
Bingfeng Wang   +4 more
doaj   +1 more source

Serrated flow and failure behaviors of a Hadfield steel at various strain rates under extensometer-measured strain control tensile load

open access: yesJournal of Materials Research and Technology, 2020
A Hadfield steel has been investigated to clarify the serrated flow and to explore the failure behavior at room temperature. The tensile experiments were performed under extensometer-measured strain control, rather than under conventional cross-head ...
Liqiang Zhang   +3 more
doaj   +1 more source

Sacral Neural Crest‐Derived Extracellular Vesicles Promote Pelvic Ganglion Repair Through Anti‐Pyroptotic Effects Involving ANXA1–FPR2 Signaling

open access: yesAdvanced Science, EarlyView.
Extracellular vesicles derived from human pluripotent stem cell‐derived sacral neural crest cells promote repair of injured major pelvic ganglia and improve colorectal function. These vesicles reduce oxidative stress and pyroptosis, with ANXA1–FPR2 signaling contributing to their protective effects, and show a favorable therapeutic profile compared ...
Ting Yang   +11 more
wiley   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

open access: yesAdvanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi   +6 more
wiley   +1 more source

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