Results 81 to 90 of about 58,723 (313)

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

Advanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh, Garrett F. Godshall, Glenn A. Spiering, Isabela Trindade Coutinho, Alejandro A. Rodriguez, Katherine J. Wood, Aiyana Gonzalez‐Arellano, Sadeq Malakooti, Stephanie L. Vivod, Robert B. Moore   +9 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Discharge coefficient of vertical sluice gates with broad crested weir under free-submerged orifice flows using best subset regression

Water Science and Technology
Accurate calculation of flow discharge for sluice gates is essential in irrigation, water supply, and structure safety. The measurement of discharge with the requirement of distinguishing flow regimes is not conducive to application.
Zhuoying Cang, Dongdong Jia, Jinyang Wang, Jun Yang, Youzhi Hao, Xiaona Chen   +5 more
doaj   +1 more source

Discharge Measurement in Rectangular Channels Using Portable Prisms [PDF]

Engineering and Technology Journal, 2007
Discharge measurement in open channels has a great importance in waterresources management. Many types of discharge measurement devicesappeared, with differences in view of their technical performance andprecision.
doaj   +1 more source

Flow and likely scour around three dimensional seabed structures evaluated using RANS CFD [PDF]

, 2007
When a structure is placed on the seabed, tidal or other marine current induce areas of flow acceleration and deceleration. This may result in movement of the seabed substrate (often sand) near the structure.
Turnock, S.R., de Hauteclocque, G., Lambkin, D.O., Dix, J.   +3 more
core  

Plant patch hydrodynamics in streams : Mean flow, turbulence, and drag forces [PDF]

, 2012
Peer ...
Aberle, Jochen, Vladimir I. Nikora, Siniscalchi, Fabio, Jochen Aberle, Fabio Siniscalchi, Nikora, Vladimir I.   +5 more
core   +1 more source

All‐Polyimide‐Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins

Advanced Materials, EarlyView.
An all‐polyimide‐mediated assembly strategy resolves the fundamental conflict between physiological breathability and electromechanical robustness in wearable electronics. By integrating a polyamic acid‐encapsulated liquid metal ink onto an ultralight polyimide aerogel, imidization‐induced contraction enables low‐temperature conductive activation and ...
Haijun Zhu, Jiancheng Dong, Hao Qiu, Je Hyeong Kim, Xingyu Liu, Shiyin Lin, Mengting Zheng, Chang Zhou, Yuduo Zhang, Jiayu Hou, Kangjia Geng, Yuchen Wang, Yidong Peng, Haoran Liu, Guanzheng Wu, Yunpeng Huang, Yongsheng Luo, Steve Park, Tianxi Liu   +18 more
wiley   +1 more source

Debris-flows, mudflows and submerged tree drifting in the plains

Гидросфера. Опасные процессы и явления, 2020
Традиционно считается, что сели формируются только в горных районах, а их возникновение на равнинных территориях невозможно. Эти представления об условиях развития и распространения селевых процессов отражены в Российских нормативных документах, определяющих состав инженерных изысканий для строительства: в них как селеопасные и потенциально ...
Alexey Yu. Vinogradov, Nikolay A. Kazakov   +1 more
openaire   +2 more sources

The Development of Submerged Floating Tunnels as an innovative solution for waterway crossings [PDF]

, 2010
The present Thesis is organized in 10 chapters. In particular Chapter 1 gives a general overview of the modern solutions and technologies available in the field of waterway crossings, introducing briefly the revolutionary concept of Submerged Floating
Martire, Giulio
core  

Withdrawal from a two-layer inviscid fluid in a duct [PDF]

, 1998
The steady simultaneous withdrawal of two inviscid fluids of different densities in a duct of finite height is considered. The flow is two-dimensional, and the fluids are removed by means of a line sink at some arbitrary position within the duct.
Hocking, Graeme C., Forbes, L.K., Forbes, Lawrence K., Hocking, G.C.   +3 more
core   +2 more sources