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About 10,000 papers for “material aging”

GPU-accelerated Interactive Material Aging

Tobias Günther, Kai Rohmer, Thorsten Grosch · Eurographics · 2012

A photorealistic appearance of a 3D scene is required in many applications today. Thereby, one vital aspect is the usage of realistic materials, for which a broad variety of reflectance models is available. When directly employing those models, surfaces always look new, which contrasts strongly the real objects surrounding us as they have undergone diverse kinds of aging processes. The literature already proposes a set of viable methods to simulate different aging phenomena, but all of them are computationally expensive and can thus only be computed off-line. Therefore, this paper presents the first interactive, GPU-accelerated method to simulate material aging in a given scene. Thereby, our approach allows artists to precisely control the course of the aging process. Our particlebased method is capable to reproduce the most common deterioration phenomena in a few seconds, including plausible dirt bleeding, flow effects, corrosion and patina.

Cited by 8Open access

The Aging of Scientific Material

Javier Damián · Epidemiology · 2015

Epidemiology publishes original research from all fields of epidemiology. The journal also welcomes review articles and meta-analyses, novel hypotheses, descriptions and applications of new methods, and discussions of research theory or public health policy. We give special consideration to papers from developing countries. Official Journal of the The International Society for Environmental Epidemiology (ISEE)

Cited by 0

Material aging for game environments

Antón Domínguez, Victor · RECERCAT (Consorci de Serveis Universitaris de Catalunya) · 2019

We propose a software and work-flow to create 3D model imperfections and aging effects while adding very little overhead to the rendering time of the models. Specifically, we implement a tool that adds all these effects into the physically based rendering (PBR) textures of the input model.

Cited by 0Open access

Supplementary material Aging and proinflammatory diet

Claudia F. Martínez1,2, Simona Esposito1, Augusto Di Castelnuovo3, Simona Costanzo1, Emilia Ruggiero1, Amalia De Curtis1, Mariarosaria Persichillo1, James R. Hebert4,5, Chiara Cerletti1, Maria Benedetta Donati1, Giovanni De Gaetano1, Licia Iacoviello1,6 *, Alessandro Gialluisi1, Marialaura Bonaccio1, For The Moli-Sani Study Investigators7 · Zenodo (CERN European Organization for Nuclear Research) · 2023

Supplementary material.

Cited by 0Open access

Modeling Viscoelastic Properties of Aging Material

Yuriy Yakubovskiy, V I Kolosov, Irina Donkova et al. · Tyumen State University Herald Physical and Mathematical Modeling Oil Gas Energy · 2018

Целью исследования является разработка формы записи ядер ползучести, позволяющих получить представления для расчета кривых ползучести. На основе теории упруго-ползучего тела показана возможность аналитического исследования быстронатекающей ползучести. Определены новые ядра для описания ползучести стареющих материалов. Построено ядро ползучести, которое содержит выражение для описания свойств стареющего материала. Показаны основные этапы формирования предлагаемого ядра ползучести. Соответствие предлагаемых расчетов реальным процессам доказано сравнением с экспериментальными данными. В численной реализации использовано разложение подынтегральных выражений в степенные ряды. На основе экспериментальных данных определены параметры ядер ползучести. Параметры определялись путем минимизации среднеквадратичного отклонения расчетных данных от экспериментальных. Описанный подход моделирования вязкоупругих свойств материала позволяет спрогнозировать перераспределение усилий во времени в слоях составных конструкций.

Cited by 3

POSTPRANDIAL GLYCEROL KINETICS IN AGING - SUPPLEMENTAL MATERIAL

Osmond, Adam · Figshare · 2024

Aging delays the suppression of lipolysis in the postprandial periodAdam D. Osmond<sup>1</sup>, Robert G. Leija<sup>1</sup>, Jose A. Arevalo<sup>1</sup>, Casey C. Curl<sup>1</sup>, Justin J. Duong<sup>1</sup>, Melvin J. Huie<sup>1</sup>, Umesh Masharani<sup>2</sup>, and George A. Brooks<sup>1</sup><sup>1</sup> Exercise Physiology Laboratory, Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States of America<sup>2</sup> Division of Endocrinology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA <br><b>Supplemental Material</b>Figure S1. Plasma glucagon concentrations in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05.Figure S2. Glycerol rate of disappearance (Rd) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05.Figure S3. Glycerol metabolic clearance rate (MCR) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05.Figure S4. Relationship between plasma glycerol concentrations and glycerol rate of appearance (Ra) in young (<i>r</i> = 0.96, <i>P</i> = 0.001) and older (<i>r</i> = 0.94, <i>P</i> = 0.002) participants.Figure S5. Relationship between plasma free fatty acid (FFA) concentrations and glycerol rate of appearance (Ra) in young (<i>r</i> = 0.97, <i>P</i> &lt; 0.001) and older (<i>r</i> = 0.95, <i>P</i> = 0.001) participants.

Cited by 0Open access

Aesthetical Problems of Material Aging of Artifacts

Николаев Александр Валерьевич, Nikolaev Aleksandr Valerevic · Research Repository Saint Petersburg State University (Saint Petersburg State University) · 2021

При созерцании произведений искусства мы обычно отстраняемся от признаков их материального старения. Тем не менее, трещины и кракелюры тоже могут обладать определённой ценностью. Известны эстетические качества руин, но разве руины обязательно должны быть архитектурными? Отталкиваясь от существующих «философий руин» и особенно от предпринятого А.Риглем анализа ценности старины, я предлагаю свой подход к определению того, как на нас влияют видимые следы времени и как производимое ими впечатление зависит от взаимодействия, в которое они вступают с материальной поверхностью произведения искусства. Привлекая теорию фотографии и семиотику, я делаю попытку рассмотреть произведения различных видов искусств в их связи с индексами особого рода, которые указывают не на референта образа, а на его создателя. Взглянув на постаревшие артефакты под таким углом, мы понимаем, что они содержат в себе память о двух временах – о моменте собственного создания и об историческом времени, прошедшем с тех пор. Провоцируемый осознанием этого – и умением создать определённый нарратив об «истории жизни» вещи – аффект, необычный вид возвышенного, я предлагаю называть возвышенным времени. Его привилегированной областью оказываются произведения искусства – так как только они среди всех вещей не теряют своей ценности при старении, – что позволяет найти область пересечения эстетики с философией искусства. Такое смещение интереса от референта к скриптору оказывается созвучным смещению в современной культуре от памяти о героях к памяти о жертвах.

Cited by 0

POSTPRANDIAL SUBSTRATE PARTITIONING IN AGING - SUPPLEMENTAL MATERIAL

Osmond, Adam · Figshare · 2024

Postprandial energy substrate partitioning is altered in healthy agingAdam D. Osmond<sup>1</sup>, Robert G. Leija<sup>1</sup>, Jose A. Arevalo<sup>1</sup>, Casey C. Curl<sup>1</sup>, Justin J. Duong<sup>1</sup>, Melvin J. Huie<sup>1</sup>, Umesh Masharani<sup>2</sup>, and George A. Brooks<sup>1</sup><sup>1</sup> Exercise Physiology Laboratory, Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States of America<sup>2</sup> Division of Endocrinology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA<br><b>Supplemental Material</b>Figure S1. Area under the curve (AUC) for rate of total carbohydrate (CHO) oxidation (Rox) in young and older participants. Values are means ± SE. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S2. Absolute rate of total carbohydrate (CHO) oxidation (Rox) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S3. Absolute rate of total lipid oxidation (Rox) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S4. Relationship between plasma free fatty acid (FFA) concentrations and rate of total carbohydrate (CHO) oxidation (Rox) in young (<i>r</i> = -0.97, <i>P</i> &lt; 0.001) and older (<i>r</i> = -0.99, <i>P</i> &lt; 0.001) participants.Figure S5. Relationship between plasma free fatty acid (FFA) concentrations and rate of total fatty acid (FA) oxidation (Rox) in young (<i>r</i> = 0.93, <i>P</i> = 0.002) and older (<i>r</i> = 0.95, <i>P</i> = 0.001) participants.<br>

Cited by 0Open access

Narayanaswamy's 1971 aging theory and material time

Dyre, Jeppe C. · arXiv (Cornell University) · 2015

The Bochkov-Kuzovlev nonlinear fluctuation-dissipation theorem is used to derive Narayanaswamy's phenomenological theory of physical aging, in which this highly nonlinear phenomenon is described by a linear material-time convolution integral. A characteristic property of the Narayanaswamy aging description is material-time translational invariance, which is here taken as the basic assumption of the derivation. It is shown that only one possible definition of the material time obeys this invariance, namely the square of the distance travelled from a configuration of the system far back in time. The paper concludes with suggestions for computer simulations that test for consequences of material-time translational invariance. One of these is the "unique-triangles property" according to which any three points on the system's path form a triangle such that two side lengths determine the third; this is equivalent to the well-known triangular relation for time-autocorrelation functions of aging spin glasses [L. F. Cugliandolo and J. Kurchan, J. Phys. A: Math. Gen. 27, 5749 (1994)]. The unique-triangles property implies a simple geometric interpretation of out-of-equilibrium time-autocorrelation functions, which extends to aging a previously proposed framework for such functions in equilibrium [J. C. Dyre, cond-mat/9712222].

Cited by 0Open access

POSTPRANDIAL SUBSTRATE PARTITIONING IN AGING - SUPPLEMENTAL MATERIAL

Osmond, Adam · Figshare · 2024

Postprandial fatty acid oxidation but not reesterification is increased in agingAdam D. Osmond<sup>1</sup>, Robert G. Leija<sup>1</sup>, Jose A. Arevalo<sup>1</sup>, Casey C. Curl<sup>1</sup>, Justin J. Duong<sup>1</sup>, Melvin J. Huie<sup>1</sup>, Umesh Masharani<sup>2</sup>, and George A. Brooks<sup>1</sup><sup>1</sup> Exercise Physiology Laboratory, Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States of America<sup>2</sup> Division of Endocrinology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA<br><b>Supplemental Material</b>Figure S1. Relative rate of total energy expenditure (EE) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S2. Absolute rate of total lipid oxidation (Rox) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S3. Absolute rate of total carbohydrate (CHO) oxidation (Rox) in young and older participants over time. Values are means ± SE. #Significantly different from 0 min, <i>P</i> &lt; 0.05. *Significantly different between groups, <i>P</i> &lt; 0.05.Figure S4. Relationship between plasma free fatty acid (FFA) concentrations and rate of total fatty acid (FA) oxidation (Rox) in young (<i>r</i> = 0.93, <i>P</i> = 0.002) and older (<i>r</i> = 0.95, <i>P</i> = 0.001) participants.Figure S5. Relationship between plasma free fatty acid (FFA) concentrations and rate of total carbohydrate (CHO) oxidation (Rox) in young (<i>r</i> = -0.97, <i>P</i> &lt; 0.001) and older (<i>r</i> = -0.99, <i>P</i> &lt; 0.001) participants.<br><br>

Cited by 0Open access