Results 41 to 50 of about 31,786 (276)

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

THE LINEAR INDETERMINATE EQUATION - A BRIEF HISTORICAL ACCOUNT

Revista Brasileira de História da Matemática, 2020
The paper presents in brief the contribution of Aryabhata in developing general solution of indeterminate equation of the type ax + c = by, where a, b, c are the integers.
Kedar N Shukla
doaj   +1 more source

Construction and Applications of CRT Sequences

, 2010
Protocol sequences are used for channel access in the collision channel without feedback. Each user accesses the channel according to a deterministic zero-one pattern, called the protocol sequence.
Shum, Kenneth W., Wong, Wing Shing
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

Advanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng, Dehong Yang, Weiming Wang, Chang Xu, Zipu Fan, Dong Sun   +5 more
wiley   +1 more source

Chinese remainder theorem‐based construction of optimal no‐hit‐zone frequency sequence set with wide gap

Electronics Letters, 2022
In frequency‐hopping (FH) communication systems, frequency‐hopping sequences (FHSs) determine systems' performance. For the quasi‐synchronous FH communication systems, no‐hit‐zone (NHZ) frequency sequences are good at preventing multi‐path interferences.
Haiyun Liu, Wendong Chen, Yunxiu Yang, Xing Liu   +3 more
doaj   +1 more source

Multilevel Threshold Secret and Function Sharing based on the Chinese Remainder Theorem [PDF]

, 2016
A recent work of Harn and Fuyou presents the first multilevel (disjunctive) threshold secret sharing scheme based on the Chinese Remainder Theorem. In this work, we first show that the proposed method is not secure and also fails to work with a certain ...
Ersoy, Oguzhan, Ersoy, Oğuzhan, Kaskaloglu, Kerem, Kaya, Kamer, Kaşkaloğlu, Kerem   +4 more
core   +1 more source

Towards Robustness in Residue Number Systems

, 2016
The problem of robustly reconstructing a large number from its erroneous remainders with respect to several moduli, namely the robust remaindering problem, may occur in many applications including phase unwrapping, frequency detection from several ...
Huo, Haiye, Xia, Xiang-Gen, Xiao, Li
core   +1 more source

Sub‐Unit‐Cell Logic Governs Transport in TPMS Architectures

Advanced Science, EarlyView.
ABSTRACT Next‐generation energy, thermal, and chemical systems require architectures capable of highly efficient transport across multiple length scales. Triply periodic minimal surfaces (TPMS), first conceptualized in 1865, offer inherently scalable geometries with exceptional transport potential, yet mechanistic links between topology and performance
Haozhang Zhong, Yipei He, Jiaxuan Wang, Chenyi Qian, Gerd E Schröder‐Turk, Raj Das, Junye Shi, Qi Tang, Zheda Ning, Wenjue Yi, Chuanwei Li, Jiangping Chen, Zeyao Chen, Binbin Yu, Jian LU, Jianfeng Gu, Ma Qian   +16 more
wiley   +1 more source

Frequency Estimator Based on Spectrum Correction and Remainder Sifting for Undersampled Real-Valued Waveforms

IEEE Access, 2019
Frequency estimation of undersampled waveforms receives increasing attention in communication, radar signal processing, instrumentation and measurements, and so on.
Xiangdong Huang, Huijie Wang, Haohua Qin, Weizhi Nie   +3 more
doaj   +1 more source