Results 71 to 80 of about 5,144,321 (345)

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Folding Langmuir Monolayers

, 2002
The maximum pressure a two-dimensional surfactant monolayer is able to withstand is limited by the collapse instability towards formation of three-dimensional material.
A. Gopal, Charles M. Knobler, D. Nelson, H. Diamant, H. E. Ries, Jr., H. E. Warriner, J. Israelachvili, J.-G. Hu, L. D. Landau, Michael Dennin, Michael Twardos, Robijn F. Bruinsma, S. T. Milner, Weixing Lu   +13 more
core   +1 more source

The Spherically Symmetric Gravitational Collapse of a Clump of Solids in a Gas [PDF]

, 2015
Several mechanisms have been identified that create dense particle clumps in the solar nebula. The present work is concerned with the gravitational collapse of such clumps, idealized as being spherically symmetric.
Cuzzi, Jeffrey N., Shariff, Karim
core   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Gravitational collapse from smooth initial data with vanishing radial pressure

, 2004
We study here the spherical gravitational collapse assuming initial data to be necessarily smooth, as motivated by the requirements based on physical reasonableness. A tangential pressure model is constructed and analyzed in order to understand the final
Ashutosh Mahajan, Brady P R, Brady P R, Brady P R, Christodoulou D, Clarke C J S, Eardley D M, Einstein A, Goswami R, Goswami R, Harada T, Harada T, Harada T, Hawking S W, Jhingan S, Joshi P S, Joshi P S, Krolak A, Magli G, Magli G, Malec E, Pankaj S Joshi, Penrose R, Rituparno Goswami, Traschen J   +24 more
core   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Experimental investigation and limit analysis of shield tunnel face failure mechanism in sand

Underground Space
Shield tunneling in urban underground space necessitates tight control over support pressure at the tunnel face and a thorough insight into ground collapse mechanisms.
Mengzhe Huo, Weizhong Chen, Jingqiang Yuan, Guojun Wu, Yunfa Li, Yubiao Liu   +5 more
doaj   +1 more source

Spring-supported arch model for predicting hydrostatic collapse strength of flexible riser with layer gap

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] As oil and gas exploration enters the field of ultra-deep water,once the outer structure of the flexible riser is damaged,the inner carcass will carry huge external hydrostatic pressure.
Li Xiao, Jiang Xiaoli, Hopman Hans
doaj   +1 more source

Spherical gravitational collapse: tangential pressure and related equations of state [PDF]

, 1999
We derive an equation for the acceleration of a fluid element in the spherical gravitational collapse of a bounded compact object made up of an imperfect fluid.
A. Ori, C. W. Misner, D. Christodoulou, D. M. Eardley, G. Lemaître, G. Magli, I. H. Dwivedi, Louis Witten, M. D. Roberts, P. Szekeres, R. Penrose, S Barve, Sukratu Barve, T. P. Singh, T. P. Singh, W. A. Hiscock   +15 more
core   +2 more sources

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

Advanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza, Danilo Bruson, Manuela Galati, Luca Iuliano   +3 more
wiley   +1 more source