Results 61 to 70 of about 684,916 (242)

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Collision avoidance maneuver design based on multi-objective optimization [PDF]

, 2014
The possibility of having collision between a satellite and a space debris or another satellite is becoming frequent. The amount of propellant is directly related to a satellite’s operational lifetime and revenue.
Morselli, A, Bernelli-Zazzera, F, Armellin, Roberto, Armellin, R, Bernelli-Zazzera, Franco, Morselli, Alessandro, Di Lizia, P, Di Lizia, Pierluigi, BERNELLI ZAZZERA, FRANCO   +8 more
core   +1 more source

Micromechanics of high temperature hydrogen attack [PDF]

, 1999
Hydrogen attack is a material degradation process that occurs at elevated temperatures in hydrogen-rich environments, such as found in petrochemical installations.
Giessen, Erik van der,, Schlögl, Sabine M.,, Giessen, Erik van der; id_orcid, van der Giessen, E., van der Giessen, E.; id_orcid, Erik Van der Giessen, Schl”gl, S.M., Schlogl, SM, Schlögl, Sabine M., Giessen, Erik van der, Sabine M. Schlögl   +10 more
core   +3 more sources

Innovative Test Strip‐Based Colorimetric Sensors Integrated With Affinity Chromatography: Acetylcholinesterase Inhibitor Screening Breakthrough in Lycium Barbarum Leaves

Advanced Science, EarlyView.
Schematic diagrams illustrating the breakthrough in the screening of AChE inhibitors from LBL, and the research process of the pharmacodynamics of the NCP are presented. ABSTRACT Current Alzheimer's drugs exhibit limited effectiveness, highlighting the necessity for multi‐target treatments.
Yuping Sa, Hui Yuan, Jingui Ma, Zhigang Yang, Mei Wang, Weibiao Wang, Lingling Yang, Fen Ma, Weiman Zhang, Gidion Wilson Mening'oo, Guoning Chen, Xueqin Ma   +11 more
wiley   +1 more source

Collision Attacks on Reduced RIPEMD-128

IACR Transactions on Symmetric Cryptology
RIPEMD-128 is an ISO/IEC standard hash function based on a doublebranch Merkle-Damgård structure. Its compression function includes two branches with distinct Boolean functions and message expansion permutations.
Zhengrong Lu, Hongbo Yu, Xiaoen Lin, Sitong Yuan   +3 more
doaj   +1 more source

New Type of Collision Attack on First-Order Masked AES

, 2015
This paper introduces a new type of collision attack on first-order masked AES. This attack is a known-plaintext attack, while the existing collision attacks are chosen-plaintext attacks.
홍석희, 김희석
core  

3D Printed Meter‐Scale Soft Origami Robots Capable of Load‐Bearing Actuation Via Crease Stiffness Modulation

Advanced Science, EarlyView.
Origami has inspired numerous soft deployable mechanisms for safe human‐robot interaction, while its intrinsic kinematic instability at arbitrary configurations limited their practical robotic application. This work presents a 3D printed meter‐scale origami robotic actuator capable of load‐bearing deformation through creaseline stiffness modulation.
Sung Yol Yu, Sang‐Joon Ahn, Wonchul Lee, Seunguk Moon, Hyun‐Jin Hong, Kyu‐Jin Cho   +5 more
wiley   +1 more source

Semi-free start collision attack on Blender [PDF]

, 2008
Blender is a cryptographic hash function submitted to NIST\u27s SHA3 competition. We have found a semi-free start collision attack on Blender with trivial complexity.
Xu Liangyu, Li Ji
core   +1 more source

Numerical Calculation of Aerodynamic Characteristics of Low-Speed Aircraft under Heavy Rainfall Conditions [PDF]

Hangkong bingqi
Aiming at the aerodynamic characteristics of a low-speed aircraft in a rainstorm environment, an adapted numerical computation scheme is constructed based on the computational fluid dynamics method, taking into account the continuous-phase control ...
Yuan Peijun, Chang Sijiang, Dai Yuewei, Zhang Jialiang
doaj   +1 more source

A Reconfigurable Memristive Spiking Neuron Enabling Advanced Neuromorphic Computing

Advanced Science, EarlyView.
Pek Jun Tiw and co‐workers develop a reconfigurable memristive neuron that can exhibit four spiking behaviors with freely tunable spike train parameters. The neuron supports multiplexed spike encoding of multiple pieces of information. It also supports advanced neural network strategies, such as neural heterogeneity and dynamic mode switching ...
Pek Jun Tiw, Yuqi Li, Zhongyuan Li, Qihang Ding, Yuzhe Wang, Jiarong Wang, Yuchao Yang   +6 more
wiley   +1 more source