Results 141 to 150 of about 144,693 (302)

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

Tracking analysis of a first order phase- locked loop with two sinewaves modulation [PDF]

Phase locked-loop tracking with sine wave modulation in Apollo communication ...
Lee, S. Y., Nelson, L. D.
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Bioinspired Twisted Artificial Muscles with Enhanced Performance for Underwater Applications

Advanced Science, EarlyView.
A climbing plant‐inspired twisted artificial muscle (TAM) with a braided configuration and seal‐inspired thermal insulation enables high‐performance underwater actuation. Enhanced deformation, reduced heat dissipation, and rapid motion are validated through a bionic ray that exhibits straight and turning motions.
Jin Sun, Yuan Fu, Shijng Zhang, Jing Li, Dehong Wang, Junkao Liu, Yingxiang Liu   +6 more
wiley   +1 more source

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

Advanced Science, EarlyView.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren, Fuyao Liu, Yanan Zhong, Shengbo Ge, Zhipeng Shi, Siling Lin, Hongli Song, Yingying Zhang, Wei Fan   +8 more
wiley   +1 more source

The combline filter and phase-lock loop. A new technique to improve FM television reception [PDF]

Development and performance of combline filter phase locked loop combination for television ...
Huang, M. Y., Stuber, F. M.
core   +1 more source

Precise Regulation of Membrane Proteins: From Physical Technology to Biomolecular Strategy

Advanced Science, EarlyView.
This review summarizes the emerging strategies for the precise regulation of membrane proteins using physical stimuli and biomolecule‐based tools. These methods provide new insights into cell regulation and offer promising directions for future disease treatment.
Xiu Zhao, Qingqing Zhou, Mengli Li, Wen Zou, Zhenzhong Zhang, Jinjin Shi, Junjie Liu   +6 more
wiley   +1 more source

Soybean Auxin Transporter PIN3 Regulates Nitrate Acquisition to Improve Nitrogen Use and Seed Traits

Advanced Science, EarlyView.
Xu et al. discovers that switching off auxin transporters in soybean, PIN3a and PIN3b, disrupts auxin flow; this triggers ARF‐STF3/4 signal cascade to activate the nitrate importer NPF2.13 and soil nitrogen acquisition. Multi‐year field trials show edited soybeans maintain yield with higher oil content, offering a potential genetic route to improve ...
Huifang Xu, Shiyu Huang, Jie Wang, Tian Wang, Qingqing Han, Kexin Wu, Zhen Gao, Xiaolei Shi, Tianli Tu, Ming Wang, Laimei Huang, Jiaomei Chen, Yunqi Liu, Yumei Zhang, Guoqiang Lin, Zhichang Chen, Xu Chen   +16 more
wiley   +1 more source

Dipiperazine‐Phenyl Derivatives Based on Convergent Molecular Platforms Can Reverse Multidrug Resistance in Gram‐Negative Bacteria by Inhibiting Efflux and Permeabilizing Cell Membranes

Advanced Science, EarlyView.
By integrating a convergent molecular platform strategy, this study designed a novel dual‐target C5 to combat multidrug‐resistant Gram‐negative bacteria. C5 synergistically enhances antibiotic efficacy by inhibiting efflux pumps and increasing bacterial membrane permeability.
Jiale Dong, Ting Guo, Yi Huang, Yangchun Ma, Weijin Chen, Jie Xue, Jun Jiang, Enhui Dong, Yue Kong, Hang Ding, Wenlong Zhang, Shutao Ma   +11 more
wiley   +1 more source

Optimal space communications techniques Status report, 16 Dec. 1969 - 15 Mar. 1970 [PDF]

All digital phase locked loop FM demodulator, and optimum adaptive delta modulator designed for improving space ...
Schilling, D. L.
core   +1 more source