Results 121 to 130 of about 6,997,530 (249)

Beyond Traditional Phenolics: Disulfide Bonds for Performance Enhancement of Aerospace Ablation‐Resistant Materials from Processing to Recycling

open access: yesAdvanced Science, EarlyView.
The dynamic disulfide bonds facilitated the development of high‐performance aerospace ablation‐resistant materials. At moderate temperature, the dissociation and recombination of disulfide bonds ensured excellent processability, mechanical properties, and recycling ability of phenolic resin; at high temperature, cleavage of disulfide bonds produced ...
Yu Li   +9 more
wiley   +1 more source

Fieldwork Hydraulic Engineering near Varna, Bulgaria, 2009

open access: yes, 2013
Data collected by students for the MSC-course Fieldwork Hydraulic Engineering at TU ...
Hydraulic Engineering Department of TU Delft
core   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

open access: yesAdvanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du   +15 more
wiley   +1 more source

Research on collaborative control method of positioning of operators and hydraulic support for coal mine fully-mechanized mining face

open access: yesMeikuang Anquan
In order to further improve the safety of coal mine comprehensive mining operations, a set of coal mine comprehensive mining personnel positioning and hydraulic support system control system is proposed with intelligent technology as the starting point ...
Zhanze LIANG, Shu ZHOU, Haijian CHEN
doaj   +1 more source

Prospectus of the Golden Hydraulic Company.

open access: yes, 1887
"Hydraulic mining in California" (p. [323]-338) is reprinted from: The century magazine, v. 25, no. 3, Jan.
Golden Hydraulic Company.
core  

Receptogenesis in a Vascularized Robotic Embodiment

open access: yesAdvanced Science, EarlyView.
Functional augmentation of situated robots via ex novo hardware generation extends physical adaptability. Drawing inspiration from open circulatory systems for mass and function redistribution, this study presents a vascularized robotic composite exhibiting receptogenesis ‐ the on‐demand construction of sensors ‐ from internal fluid reserves based on ...
Kadri‐Ann Pankratov   +8 more
wiley   +1 more source

Response characteristics of unit type energy-absorbing and anti-impact hydraulic support under impact load

open access: yesMeitan kexue jishu
In the rock burst mines, mastering both the mechanical and modal response characteristics of advanced hydraulic supports is the basis and premise for the selection and optimization of roadway advanced hydraulic supports.
Shuwen WANG   +6 more
doaj   +1 more source

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

open access: yesAdvanced Science, EarlyView.
Organic–inorganic copolymerization of calcium silicate hydrate and thioctic acid produces a self‐organized nanocomposite inspired by the disordered collagen–mineral architecture of trabecular bone. The resulting material combines a compressive strength above 300 MPa with intrinsic physical reprocessibility, retaining over 80% of its strength and energy
Zonglin Xie   +8 more
wiley   +1 more source

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