Results 61 to 70 of about 105,821 (276)

Co‐Electrospinning Extracellular Matrix with Polycaprolactone Enables a Modular Approach to Balance Bioactivity and Mechanics of a Multifunctional Bone Wrap

open access: yesAdvanced Healthcare Materials, EarlyView.
The incorporation of nondigested ECM and synthetic polymers into a co‐electrospinning system enables the decoupling of bioactivity and mechanical properties within a single wrap. This technique is used to develop a multifunctional bone wrap that achieves augmented membrane durability, sustained infection control, and enhanced vascularity for use in ...
Sarah Jones   +14 more
wiley   +1 more source

Resistance Spot Welding of dissimilar Steels

open access: yesActa Polytechnica, 2012
This paper presents an analysis of the properties of resistance spot welds between low carbon steel and austenitic CrNi stainless steel. The thickness of the welded dissimilar materials was 2 mm.
Ladislav Kolařík   +5 more
doaj  

Improved method of evaluating power losses in pulse converters of micro resistance welding machines

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018
The paper represents resistance welding characteristics and construction features of power supplies for resistance welding. The authors give an overview of circuit topologies of converters for resistance welding and distinguish the most promising one ...
O. F. Bondarenko   +2 more
doaj   +1 more source

Boron‐Doped Nano‐Crystalline Coated Carbon Fibers for Phasic Dopamine Sensing

open access: yesAdvanced Healthcare Materials, EarlyView.
This uniform coating presents a mix of graphitic and diamond‐like carbon to create a mechanically and electrically robust alternative for the electrochemical detection of dopamine. The electrodes in this work possess the equivalent sensitivity to the state‐of‐the‐art FSCV dopamine detecting electrodes, whilst demonstrating an ability to withstand ...
Simon J. Higham   +19 more
wiley   +1 more source

Detection of Q235 Mild Steel Resistance Spot Welding Defects Based on EMD-SVM

open access: yesMetals
Real-time detection of welding defects in resistance spot welding is a complex challenge. Dynamic resistance (DR) reflects nugget growth and varies with defect types, serving as a key indicator. This study presents an online quality evaluation and defect
Yuxin Wu   +3 more
doaj   +1 more source

Microstructure changes in welded duplex stainless steel and their effects on hardness and corrosion resistance [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy
Duplex stainless steels (DSS) are extensively used in various applications because of their favorable properties, which result from equal proportions of the two phases, ferrite and austenite, along with specific percentages of alloying elements.
Melad M.S.   +4 more
doaj   +1 more source

Pre-weld heat treatment improves welds in Rene 41 [PDF]

open access: yes, 1968
Cooling of Rene 41 prior to welding reduces the incidence of cracking during post-weld heat treatment. The microstructure formed during the slow cooling rate favors elevated temperature ductility.
Prager, M.
core   +1 more source

Interfacial Bioengineering of Dynamic Networks Hybrid Hydrogel for Programmed Intervention in Oral Precancerous Epithelial States

open access: yesAdvanced Healthcare Materials, EarlyView.
This study develops a dual‐bioinspired hydrogel, MSA@PGel (macrophage membrane‐coated and salvianolic acid B/5‐aminolevulinic acid co‐loaded liposomes embedded in a polydopamine‐based gel), that integrates macrophage membrane‐mediated active targeting and mussel‐inspired wet adhesion for programmed intervention in oral precancerous lesions.
Xiaoxian Zhao   +8 more
wiley   +1 more source

Gage monitors quality of cross-wire resistance welds [PDF]

open access: yes, 1968
Gage nondestructively monitors the quality of cross-wire resistance welds during the welding operation. The gage gives a dial indication of the relative embedment of the cross wires during the actual welding operation.
Etzel, J., Piltch, A.
core   +1 more source

A Versatile Engineering Platform for the Fabrication of Prosthetic Venous Valves Using Electrospinning

open access: yesAdvanced Healthcare Materials, EarlyView.
Percutaneous prosthetic venous valves are fabricated by embedding stents in an electrospun matrix that extends luminally to form leaflets. The design shields leaflets from hyperplastic cells, isolates struts from blood contact, and avoids discrete anchoring points.
Dario Arcuti   +6 more
wiley   +1 more source

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