Results 91 to 100 of about 519,021 (315)

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

Advanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl, Arsène Chemin, Adam H. Day, Rocio B. Rodriguez, Sneha Choudhury, Franziska Buchner, Kaan Atak, Christoph Merschjann, Emina Hadzifejzovic, Tim D. W. Claridge, Karin Larsson, Amélie Venerosy, Mailis M. Lounasvuori, Natalia Zabarska, Boyan Iliev, Thomas J. S. Schubert, Hugues A. Girard, Jean‐Charles Arnault, John S. Foord, Tristan Petit, Anke Krueger   +20 more
wiley   +1 more source

Insights into the Transformation Patterns of Overmature, Organic-Rich Shale Reservoirs under High-Temperature Conditions: Evidence from Physical Experiments

Yankuang ceshi
The efficient development of shale oil and gas is crucial for China’s energy security. Shale exhibits characteristics such as well-developed bedding planes, strong heterogeneity, low porosity, and low permeability. Previous studies have demonstrated that
Yangbing LI, Jianqi CHEN, Weiqiang HU, Xueqing LIU, Litao MA, Panpan LI, Chenchen LI   +6 more
doaj   +1 more source

Aspects of energy requirements for rock drilling [PDF]

, 1974
Development of laboratory rock breakage techniques to relate energy and surface area produced by slow compression, drop hammer and stamp mill. A detailed study of laboratory rotary-percussive drilling in a wide range of rocks under different ...
Wootton, David
core  

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

The Social Production of Age, Space and Exclusion: Towards a More Theory‑Driven Understanding of Spatial Exclusion Mechanisms in Later Life

Sociální studia, 2018
Gerontology has for a long time been described as “data rich, but theory poor”. This is true for the study of spatial exclusion, too: in a recent scoping review on old‑age exclusion, Walsh and his colleagues called for more theoretical work in the field ...
Thibauld Moulaert, Anna Wanka, Matthias Drilling   +2 more
doaj  

Through Diamond Robust Surface Enhanced Raman Spectroscopy

Advanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle, Rebecca J. Watkins, Ralph J. Moors, Massimiliano L.A. Ramsay, Richard B. Jackman   +4 more
wiley   +1 more source

Synthesis and application of polyacrylate reverse demulsifier with high stability

Gongye shui chuli
Polyacrylate reverse demulsifier CR-3 was synthesized with methyl methacrylate, ethyl acrylate, and styrene as monomers by aqueous polymerization method. The effects of emulsifier type, emulsifier dosage, and effective content of CR-3 on the stability of
GUO Xiaoyi, ZHANG Ying, WANG Yongjun, LIU Xuemin, CUI Guangzhen, WU Jiefeng   +5 more
doaj   +1 more source

Survey of information concerning large diameter deep hole drilling [PDF]

, 1972
Data are presented, covering drilling techniques, factors affecting penetration rates, cost estimation, and system improvement.

core   +1 more source

Thermal Evaluation of Bone Drilling: Assessing Drill Bits and Sequential Drilling

Bioengineering
Sequential drilling is a common practice in dental implant surgery aimed at minimizing thermal damage to bone. This study evaluates the thermal effects of sequential drilling and assesses modifications to drilling protocols to manage heat generation.
Sihana Rugova, Marcus Abboud
openaire   +3 more sources

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

Advanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein, Shima Tavakoli, Philipp Wolf, Xie Ling, Veronica Rondahl, Klaus Leifer, Gry Hulsart‐Billström, Jöns Hilborn   +7 more
wiley   +1 more source