Results 271 to 280 of about 24,425,069 (351)

Metal-Organic Framework-Derived Carbon as a Photoacoustic Modulator of Alzheimer's β-Amyloid Aggregate Structure.

ACS Nano, 2022
Photoacoustic materials emit acoustic waves into the surrounding by absorbing photon energy. In an aqueous environment, light-induced acoustic waves form cavitation bubbles by altering the localized pressure to trigger the phase transition of liquid ...
Jinhyeong Jang, Yonghan Jo, Chan Beum Park   +2 more
semanticscholar   +1 more source

Fractal structure of asphaltene aggregates

Journal of Colloid and Interface Science, 2005
A photographic technique coupled with image analysis was used to measure the size and fractal dimension of asphaltene aggregates formed in toluene-heptane solvent mixtures. First, asphaltene aggregates were examined in a Couette device and the fractal-like aggregate structures were quantified using boundary fractal dimension.
Nazmul H G, Rahmani, Tadeusz, Dabros, Jacob H, Masliyah   +2 more
openaire   +2 more sources

Piezoelectric materials for ultrasound-driven dissociation of Alzheimer's β-amyloid aggregate structure.

Biomaterials, 2020
Piezoelectric materials can evoke electrochemical reactions by transferring charge carriers to reactants upon receiving mechanical stimuli. We report a newly discovered function of piezoelectric bismuth oxychloride (BiOCl) nanosheets for dissociating ...
Jinhyeong Jang, Kayoung Kim, Jaeho Yoon, C. B. Park   +3 more
semanticscholar   +1 more source

Structure of Aggregated Gold Colloids

Physical Review Letters, 1986
We report a high-resolution, small-angle x-ray study of aggregated gold colloids over the range 0.0003 to 0.08 ${\mathrm{\AA{}}}^{\ensuremath{-}1}$. We are able to fit our data with a simple model that correctly accounts for nonfractal short-range order with a crossover to long-range fractal correlations.
, Dimon, , Sinha, , Weitz, , Safinya, , Smith, , Varady, , Lindsay   +6 more
openaire   +2 more sources

Assessing Aggregate Structural Change

Economic Systems Research, 1999
The aim of this paper is to investigate the evolution of Italian aggregate structural change over the years 1965–85. We use annual input–output (IO) tables in current and constant prices to derive an aggregate index of structural change. We adopt several techniques for such an explorative analysis.
GREGORI, TULLIO, SCHACHTER G.
openaire   +2 more sources

A two-dimensional random aggregate structure generation method: Determining effective thermo-mechanical properties of asphalt concrete

, 2020
This study presents a 2D random aggregate structure generation algorithm for asphalt concrete. It involves two steps: first, the “convex-concave surface method” is proposed to generate random aggregate particles; second, the “double background grid ...
Yi-Ren Sun, Xin-Guo Wei, Hongren Gong, Cong Du, Wei-Ying Wang, Jing-Yun Chen   +5 more
semanticscholar   +1 more source

Internal structure of colloidal aggregates

Physical Review E, 2001
A nonlinear model of diffusion-limited growth of three-dimensional colloidal aggregate has been developed. The conditions of internal combination/recombination balance has been considered. Obtained solution shows that the aggregate contains the central dense core and the surrounding loose region, in which the aggregated particle concentration decreases
A O, Ivanov, A Y, Zubarev
openaire   +2 more sources

A structured aggregate signature scheme

2010 International Symposium On Information Theory & Its Applications, 2010
In multisignature scheme, verifiying the signing order is sometimes very important. A multisignature scheme in which generated signatures reflect the structure of signers, e.g. signing order, is called structured multisignature scheme and many such schemes have been proposed so far.
Naoto Yanai, Eikoh Chida, Masahiro Mambo
openaire   +1 more source

Effect of alkali residue and humic acid on aggregate structure of saline‐alkali soil

Soil Science Society of America Journal
Humic acid (HA) and alkali residue (AR) exert an essential impact on soil aggregate structure, but how HA and AR promote the formation of macroaggregates jointly is not clear.
Chang Liu, H. Shang, Li-Hua Han, Xiao-Ran Sun   +3 more
semanticscholar   +1 more source

Distribution and release of phosphorus fractions associated with soil aggregate structure in restored wetlands.

Chemosphere, 2019
Phosphorus, a dominating element responsible for eutrophication, is a potential limiting nutrient in wetland ecosystem. In this study, the release risk of phosphorus was evaluated by investigating the distribution of phosphorus fractions in different ...
H. Cui, Yang Ou, Li-Xia Wang, Haitao Wu, B. Yan, Yingxin Li   +5 more
semanticscholar   +1 more source