Results 101 to 110 of about 292,162 (290)

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

From Complex Shaping to Mirror Finish: Additive Manufacturing of Aerospace‐grade Cf/SiC Space Optics

Advanced Science, EarlyView.
An integrated additive manufacturing route combines selective laser sintering, engineered interphases, and optimized silicon infiltration to fabricate complex Cf/SiC composites. The approach enables precise shaping, high mechanical performance, and excellent optical reflectivity, offering a scalable solution for advanced aerospace optics with both ...
Buhao Zhang, Li Wang, Xiao Chen, Yuquan Wei, Huisheng Tian, Zhengren Huang, Xuejian Liu, Zhongming Chen, Jie Yin   +8 more
wiley   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

Advanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma, Yang Yang, Zhiguo He, Hongliang Ren, Pengcheng Jiao   +4 more
wiley   +1 more source

MeerKAT time and frequency reference optical network: Preliminary design analysis

South African Journal of Science, 2017
The MeerKAT telescope is a precursor to the Square Kilometre Array, which will rely on optical fibres to link the telescope receivers to a central processor point. The main aspects to consider for the fibre transport are astronomical data transmission as
Enoch K. Rotich Kipnoo, Romeo R.G. Gamatham, Andrew W.R. Leitch, Timothy B. Gibbon, Sias Malan, Henno Kriel, Francois Kapp   +6 more
doaj   +1 more source

FOREST unbiased Galactic plane imaging survey with the Nobeyama 45 m telescope (FUGIN). VIII. Possible evidence of cloud–cloud collisions triggering high-mass star formation in the giant molecular cloud M 16 (Eagle Nebula) [PDF]

, 2020
Atsushi Nishimura, Shinji Fujita, Mikito Kohno, Daichi Tsutsumi, Tetsuhiro Minamidani, Kazufumi Torii, Tomofumi Umemoto, Mitsuhiro Matsuo, Yuya Tsuda, Mika Kuriki, Nario Kuno, Hidetoshi Sano, Hiroaki Yamamoto, Kengo Tachihara, Y. Fukui   +14 more
openalex   +1 more source

Gutmann Donor Theory‐Guided Design of Mononuclear Ionic Cluster for Exceptional N‐Type Thermoelectric Ionogel

Advanced Science, EarlyView.
Super‐stretchable and self‐healing polyacrylate ternary ionogel elastomers are used for flexible i‐TE devices. Based on Gutmann donor theory of doped anion, the work proposes a three‐parameter tuning strategy of flexible polymer‐doped anion‐synergistic cation to achieve the systematic design of ionic thermoelectric materials. Abstract Quasi‐solid‐state,
Bin Chen, Mingxuan Tian, Hongji Wang, Yun Jin, Heng Tang, Xingrui Chen, Shengxue Yu, Changyuan Yan, Wenwei Lei, Taihong Wang   +9 more
wiley   +1 more source

A Robotic Urinary Bladder Enabling Volume Monitoring and Assisted Micturition

Advanced Intelligent Systems, EarlyView.
An implantable robotic bladder is presented that can store urine in an origami‐designed enclosure. An inductance sensing principle can monitor and transfer the urine volume in real‐time. It can actively expand based on the amount of urine collected from kidneys and apply on‐demand mechanical compression to assist urination.
Izadyar Tamadon, Michele Ibrahimi, Federica Semproni, Veronica Iacovacci, Arianna Menciassi   +4 more
wiley   +1 more source

Implementation of a spherical double-plasma-mirror telescope for a multi-petawatt laser

High Power Laser Science and Engineering
High-power laser beamlines typically operate with fixed focusing conditions, limiting the focal spot size and peak intensity. To mitigate these restrictions, prior studies used curved plasma mirrors to adjust the F-number to a specific value.
Valeriu Scutelnic, Martin Speicher, Alice Fazzini, Petru Ghenuche, Domenico Doria, Alexandru Ailincutei, Bruno Gonzalez-Izquierdo, Theodor Asavei, Septimiu Balascuta, John Jasper Bekx, Petrisor Gabriel Bleotu, Giordano Bodini, Carafino Braganza, Alexandra Brodersen, Alessandro Cavalli, Olivier Chalus, Gabriel Cojocaru, Jadyn D’mello, Ioan Dancus, Christophe Derycke, Floris Deurvorst, Michael Ehrmanntraut, Dan Gengenbach, Dan Ghita, Lorenzo Giuffrida, Marius Gugiu, Marc Guenther, Oscar Juina, Kyle Kenney, Sumit Kumar, Mariana Martinez-Pacheco, Ignacio Minguez Bacho, Saidbek Norbaev, Nathaniel Poetranto, Hartmut Ruhl, Emanuel Schork, Markus Stein, Sven Steinke, Anda-Maria Talposi, Antonia Toma, Marco Tosca, Ashwini Ubarhande, Lidia Vasescu, Erhard Gaul, Daniel Rivas, Marius Schollmeier, Georg Korn   +46 more
doaj   +1 more source

Multimodal Locomotion of Soft Robots

Advanced Intelligent Systems, EarlyView.
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan, Huangwei Ji, Kai Huang, Feifei Chen, Guoying Gu   +4 more
wiley   +1 more source

Kozmoloji Felsefesi Açısından Teleskopun Önemi

Düzce İlahiyat Dergisi
Gözleme dayalı verilerin genişletilmesine, yeni fenomenlerin gün yüzüne çıkarılmasına ve evrenin doğası ile ilgili anlayışımızı derinleştirmesine yaptığı katkılar nedeniyle, teleskop, insanın evreni anlama ve yorumlama çabasında önemli bir araç olmuştur.
Metin Koçhan
doaj   +1 more source