Results 71 to 80 of about 234,400 (314)

Bioinspired Twisted Artificial Muscles with Enhanced Performance for Underwater Applications

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Analysis of fourth sounding rocket heat pipe experiment, summary report [PDF]

open access: yes
An analysis was made of the cryogenic axial groove methane and axial groove nitrogen heat pipes. Data cover the establishment of reliable start-up and operational data for the cryogenic pipe and its reference control pipes, and requirements for and the ...
Brennan, P. J.
core   +1 more source

Automated Benchmarking of Variable‐Property Soft Robotic Fingertips to Enable Task‐Optimized Sensor Selection

open access: yesAdvanced Science, EarlyView.
Sensorized fingertips are needed to unlock robotic dexterity, versatility, and diverse interactions. Here, 15 identically‐shaped robotic fingertips are benchmarked by a fully automated toolchange system, covering eight different materials and six broadly‐ranging sensing mechanisms.
David Hardman   +5 more
wiley   +1 more source

Modeling of transient heat pipe operation [PDF]

open access: yes
The overall goal is to gain a better understanding of the transient behavior of heat pipes operating under both normal and adverse conditions. Normal operation refers to cases where the capillary structure remains fully wetted.
Colwell, G. T., Hartley, J. G.
core   +1 more source

A dsRNA Viral Transcriptional Regulator Evades Innate Immunity by Hijacking Host CoTranscription Factor DHX9

open access: yesAdvanced Science, EarlyView.
This study identifies a new viral mechanism by a viral protein σ3 that functions as a vTR to suppress NF‐κB gene expression via its direct interaction with the host helicase DHX9. Through their interaction, σ3 not only impairs the initial recruitment of Pol II but also affects Pol II pause‐release and ultimately suppresses NF‐κB gene expression ...
Xueyang Pang   +12 more
wiley   +1 more source

Experimental investigation on heat transfer performance diamond nanofluid gravity heat pipe

open access: yesJin'gangshi yu moliao moju gongcheng
Objectives: With the development of modern processing technology, heat accumulation has become an urgent processing problem that needs to be solved.
Yong YANG   +4 more
doaj   +1 more source

REGULARITIES OF THE AVERAGE HEAT EXCHANGE FOR PIPES WITH ROUGH WALLS AND ROUGH FLAT CHANNELS UNDER ONE-SIDED THERMAL LOADING

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2018
. Objectives The aim of the present work is to carry out mathematical modelling of heat exchange in rough flat channels and round pipes with rough walls during one-sided heating.
Igor' E. Lobanov
doaj   +1 more source

Water‐Efficient Smart Drip Irrigation Enabled by a Low‐Power and High‐Efficiency Flexible Electromagnetic Actuator

open access: yesAdvanced Science, EarlyView.
Water scarcity poses a critical threat to global food security. A low‐power, flexible electromagnetic actuator is presented for smart drip irrigation systems. The device achieves precise, wide‐range flow modulation (0.05–5.8 mL/min) in response to real‐time plant demands, reducing water consumption compared to conventional flood irrigation.
Duo Chen   +7 more
wiley   +1 more source

Experiment research on the influence of cored heat pipe on temperature field of high temperature coal pile

open access: yesMeikuang Anquan
In order to study the influence characteristics of cored heat pipes on the temperature field of coal pile and the feasibility of preventing the spontaneous combustion of coal pile, the heat transfer law of two kinds of heat pipes with core and without ...
Xin YI   +4 more
doaj   +1 more source

A homogeneous heat pipe design code [PDF]

open access: yes
A computer program was developed to facilitate parametric performance evaluation of heat pipes in lightweight heat rejection systems. A description of the code, user's manual, and sample inputs are provided.
Kikin, G. M., Nakashima, A. M.
core   +1 more source

Home - About - Disclaimer - Privacy