Results 131 to 140 of about 209,510 (304)

How Does a Delicate Insect Wing Resist Damage? Chitin Orientation Is Adapted to the Mechanical Demands at the Nanoscale

Advanced Materials, EarlyView.
Nanoscale chitin fiber orientations in the insect wing play a critical role in adapting to complex mechanical demands. These findings reveal two distinct and functionally adaptive chitin orientation patterns in the membranes that vary regionally, optimizing mechanical resilience and deformation control.
Chuchu Li, Jiliang Liu, Manfred Burghammer, Chao Wan, Stanislav N. Gorb, Clemens F. Schaber   +5 more
wiley   +1 more source

Simulation and experimental study on olive drop injury

Smart Agricultural Technology
Inadequate harvesting and post-harvest handling of olives can damage the fruit and seriously affect the quality of the extracted oil. In this study, vibration harvesting drop tests and finite element simulations were performed on the olive variety ...
Weike Lan, Haotian Mu, Di Xin, Shijia Pan, Yuncai Yan, Wen Gao, Zijie Niu, Dongyan Zhang, Jun Zhang, Yongjie Cui   +9 more
doaj   +1 more source

New Proofs for NMAC and HMAC: Security without Collision Resistance [PDF]

, 2014
Mihir Bellare
openalex   +1 more source

Volumetric 3D Printing and Melt‐Electrowriting to Fabricate Implantable Reinforced Cardiac Tissue Patches

Advanced Materials, EarlyView.
This study presents an implantable reinforced cardiac patch (RCPatch) combining volumetrically 3D‐printed metamaterials with melt‐electrowritten (MEW) meshes. The design integrates tunable stiff polymer structures with soft, cell‐laden hydrogels. The RCPatch withstands suturing, intraventricular pressure, and cardiac contraction in a large animal ...
Lewis S. Jones, Hector Rodriguez Cetina Biefer, Manuel Mekkattu, Quinten Thijssen, Alessio Amicone, Anna Bock, Miriam Weisskopf, Dennis Zorndt, Debora Meier, Li Zheng, Melanie Generali, Robert K. Katzschmann, Omer Dzemali   +12 more
wiley   +1 more source

PiP‐Plex: A Particle‐in‐Particle System for Multiplexed Quantification of Proteins Secreted by Single Cells

Advanced Materials, EarlyView.
Detecting proteins secreted by a single cell while retaining its viability remains challenging. A particles‐in‐particle (PiPs) system made by co‐encapsulating barcoded microparticles (BMPs) with a single cell inside an alginate hydrogel particle is introduced.
Félix Lussier, Byeong‐Ui Moon, Mojra Janta‐Polczynski, Yonatan Morocz, Fabian Svahn, Molly Shen, Ljuboje Lukic, Lidija Malic, Teodor Veres, Andy Ng, David Juncker   +10 more
wiley   +1 more source

All‐3D‐Printed Multi‐Environment Modular Microrobots Powered by Large‐Displacement Dielectric Elastomer Microactuators

Advanced Materials, EarlyView.
Fully 3D‐printed modular microrobots capable of performing a broad range of tasks across diverse environments are demonstrated. The key breakthrough lies in the development of a large‐displacement microactuator for multi‐environment navigation and a mesoscale multimaterial 3D printing platform for on‐demand module fabrication.
Won Jun Song, Yong‐Woo Kang, Yun Hyeok Lee, Junhyung Kim, Bastien F.G. Aymon, Seong‐Yu Choi, Yong Eun Cho, Xiao‐Yun Yan, Shucong Li, Younghoon Lee, Xuanhe Zhao, Yong‐Lae Park, Jeong‐Yun Sun   +12 more
wiley   +1 more source

Dynamic behavior and residual performance of CFDSTCs under coupled collision and blast loads

Case Studies in Construction Materials
Bridges can suffer partial or even total collapse when bridge piers, as crucial load-bearing bridge components, are hit by vehicles or ships. Concrete-filled double-skin steel tubular columns (CFDSTCs) offer high bearing capacity and good fire resistance,
Yongtao Mi, Huiqi Ren, Chenxi Sun, Jian Zhao, Weiqiang Wang, Zailin Yang, Yicun Chen   +6 more
doaj   +1 more source

Magnetic Milli‐Spinner for Robotic Endovascular Surgery

Advanced Materials, EarlyView.
The magnetic milli‐spinner, with its unique structural design, achieves rapid and stable navigation through complex vasculature at speeds up to 23 cm·s−1. It further enables multifunctional treatment, including localized suction and shear for efficient clot removal, targeted drug delivery, and in situ embolization for aneurysm therapy, establishing it ...
Shuai Wu, Yilong Chang, Sophie Leanza, Jay Sim, Lu Lu, Qi Li, Diego Stone, Ruike Renee Zhao   +7 more
wiley   +1 more source

Recent Advances in Reactive Microdroplets for Clean Water and Energy

Advanced Materials, EarlyView.
Reactive microdroplets enable precise and sustainable chemistry at small scales. This review explores their role as confined reactors and dynamic interfaces for synthesizing functional materials, fuels, and microdevices. It offers a critical perspective on how droplet‐based platforms can drive next‐generation technologies in clean energy, environmental
Qiuyun Lu, Boubakar Sanogo, Tanay Kumar, Ben Bin Xu, Xuehua Zhang   +4 more
wiley   +1 more source

Chosen-Prefix Collisions on AES-like Hashing

IACR Transactions on Symmetric Cryptology
Chosen-prefix collision (CPC) attack was first presented by Stevens, Lenstra and de Weger on MD5 at Eurocrypt 2007. A CPC attack finds a collision for any two chosen prefixes, which is a stronger variant of collision attack. CPCs are naturally harder to
Shiyao Chen, Xiaoyang Dong, Jian Guo, Tianyu Zhang   +3 more
doaj   +1 more source