Results 41 to 50 of about 4,362 (237)

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

Advanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan, Nathaly A. Chicaiza‐Cabezas, Florian Kleefeldt, Philipp Wörsdörfer, Jürgen Groll, Süleyman Ergün   +5 more
wiley   +1 more source

Shear Strengths of Different Bolt Connectors on the Large Span of Aluminium Alloy Honeycomb Sandwich Structure

Applied Sciences, 2017
This study investigates the shear capacity of aluminum alloy honeycomb sandwich plates connected by high-strength, ordinary, or self-tapping bolts. For that purpose, experimental tests and finite elements are carried out.
Caiqi Zhao, Weidong Zheng, Jun Ma, Yangjian Zhao   +3 more
doaj   +1 more source

Fatigue Performance of Shear Connections between CFS Sheets using Self-Tapping Screws and Rivets [PDF]

, 2022
In this paper, experimental study on the fatigue performance of CFS sheets using self-tapping screws and rivets is presented and compared. Based on the fatigue test data, the fatigue life for CFS sheets using self-tapping screws and rivets was predicted,
Wang, Ya-Qian, Li, Yuan-Qi
core  

Performance of axially loaded self-tapping screw in mass timber subjected to moisture content change [PDF]

, 2023
: Self-tapping screws (STS) are a popular fastener in mass timber construction due to several advantages over traditional fasteners such as bolts and lag screws.

core   +2 more sources

The Influence of Residual Ion Drift During Programming of Chip‐Integrated Nanoscale HfO2‐Based Memristive Devices

Advanced Electronic Materials, EarlyView.
1T1R‐arrays combining filamentary‐type memristors and CMOS transistors offer great potential for energy‐efficient analog hardware accelerators. Here, transient SET analysis of nanoscale HfO2 memristors integrated on 180 nm CMOS wafers is discussed.
Oliver Artner, Felix Cüppers, Seokki Son, Yang Chen, Xiaohua Liu, Christopher Bengel, Dennis Nielinger, André Zambanini, Stefan Wiefels, Stephan Menzel, Regina Dittmann, Susanne Hoffmann‐Eifert   +11 more
wiley   +1 more source

Finite element analysis comparison of Type 42A2 fracture fixed with external titanium alloy locking plate and traditional external fixation frame

Journal of Orthopaedic Surgery and Research, 2023
Background At present, not all Type AO/OTA 42A2 open fractures can be treated by external fixation brackets, not to mention the inconvenience of this technique in clinical practice.
Shitao Fang, Ling Zhang, Yunqi Yang, Yun Wang, Jinkun Guo, Lei Mi   +5 more
doaj   +1 more source

Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

Advanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener, Alec Brewer, He Sun, Jack Twiddy, Vladimir A. Pozdin, Koji Sode, Alper Bozkurt, Michael Daniele   +7 more
wiley   +1 more source

Cooperation Pullout Test of Double Self-Tapping Screws in Wood Structures [PDF]

, 2011
In this paper, the experimental study on the self-tapping screw’s pullout resistance in the wood structure was conducted. Domestic ordinary screws were used together with imported or domestic wood to fabricate 6 screw connection specimens in wooden walls.
Jian Xing Zhang, Zheng Hong Zhang, Yuan Qing Wang, Hui Juan Huang, Gang Shi   +4 more
core   +1 more source

An Analytical Model for Predicting the Axial Stress Distribution of Self-Tapping Screws Due to Axial Load and Moisture Swelling of Mass Timber Products

Buildings
Self-tapping screws are becoming increasingly popular for use in modern timber structures. The axial stress distribution of self-tapping screws due to a mechanical load has been previously studied.
Mehsam Tanzim Khan, Sara Keypoursangsari, Chun Ni, Ying Hei Chui, Zengtao Chen   +4 more
doaj   +1 more source

Behaviour of Steel-Concrete-Steel Sandwich Beams with Novel Enhanced C-Channels

Buildings, 2023
As the load increases, most composite beams generally experience failure in both shear and flexural behavior. This outcome highlights the critical challenges of achieving sufficient strength and structural integrity in such beams.
Ananthakumar Ayyadurai, Balaji Shanmugam, Gobinath Ravindran   +2 more
doaj   +1 more source