Results 81 to 90 of about 17,538 (258)

Synthesis of a Novel Amine‐Based Curing Agent for Epoxy Resins Derived From Vanillin

Journal of Applied Polymer Science, EarlyView.
The four‐step synthesis of a new bio‐based amine hardener is described starting from vanillin as a bio‐based compound. The hardener ADBA was utilized to cure DGEBA and the resulting Tg,tanδmax was determined via DMA. Compared to other bio‐based curing agents, our curing agent is obtainable in a high yield and leads to a superior Tg of 135°C.
Bastian Hahn, Gerd Wehnert, Elisabeth Schamel, Dominik Söthje   +3 more
wiley   +1 more source

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

Journal of Applied Polymer Science, EarlyView.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar, François Brouillette, Zahahe Oulame Mouandhoime, Saïd Elkoun, Mathieu Robert   +4 more
wiley   +1 more source

Analysis of forest fire dangers of the Bryansk region in the zones of radioactive contamination and beyond

Радиационная гигиена
The purpose of the study is to analyze the forest fire dangers of the Bryansk region forests, taking into account their radioactive contamination and potential risks for forestry workers involved in forest fires extinguishing.
A. I. Radin, T. A. Marchenko, A. N. Razdaivodin   +2 more
doaj   +1 more source

Wood Sawdust as a Low‐Cost Filler in Whole‐Tire Reclaimed Rubber: Mechanical Characterization and Factory‐Scale Cost Analysis

Journal of Applied Polymer Science, EarlyView.
Whole‐tire reclaimed rubber is upgraded with wood sawdust, a carpentry by‐product available at no cost, across loadings from 0 to 20 wt%. At 5 wt%, tensile strength, elongation, hardness, viscosity, and water absorption all stay within commercial specification, and real factory data show an annual production saving near $62,000 with no capital ...
Mohammed S. Matar, Faris Tarlochan, Sami E. Alkhatib, Abdullah Abdelhamid   +3 more
wiley   +1 more source

Three‐dimensional digital analysis of musteloid masticatory muscle architecture

The Anatomical Record, EarlyView.
Musteloids span an enormous breadth of dietary modes within a single superfamily. In this study, we utilize digital dissection techniques to reconstruct the internal 3D anatomy of muscles within the musteloid feeding apparatus, and explore how dietary specializations might alter the size, orientation, and curvature of fascicles therein.
Cassidy E. Davis, Edwin Dickinson, Madison Manzo, Ashley R. Deutsch, Jillian S. Davis, Michael C. Granatosky, Adam Hartstone‐Rose   +6 more
wiley   +1 more source

Fine Particulate Matter Constituents, Ozone, and Systemic Lupus Erythematosus: A Large General‐Population Cohort Analysis With Extended Quantile g‐Computation

Arthritis &Rheumatology, EarlyView.
Objective The aim of this study was to investigate whether exposure to mixture of individual fine particulate matter (PM2.5) chemical constituents is associated with incident systemic lupus erythematosus (SLE) and if ozone modifies this association and/or is associated with SLE onset.
Naizhuo Zhao, Sasha Bernatsky, Sharon Dowell, Brittany Banbury, Jeffrey R. Curtis, Grace C. Wright, Emily E. Holladay, Amy Mudano, Cristiano S. Moura, Gail S. Kerr   +9 more
wiley   +1 more source

Through Smoke to Policy: Framing the EU Forest Fire Policy Landscape

Land
The global community is grappling with a significant increase in forest fires’ frequency, size, and intensity, presenting a profound challenge. To complement existing framing literature on forest fires, this paper examines collective frames applied to ...
Filip Aggestam
doaj   +1 more source

Analysis of the flammability of forests in the Orenburg region [PDF]

BIO Web of Conferences
The article provides information on the dynamics of forest fires in the forestry districts of the Orenburg region, the potential danger to the gas processing and oil production industries of the region, and the impact of fires on forest phytocenoses. The
Simonenkova Victoria, Kalyakina Railya, Simonenkov Vladislav, Anhalt Elena, Sadykov Elver   +4 more
doaj   +1 more source

Operationalizing BioSSbD: A safe‐and‐sustainable‐by‐design framework for biorefineries

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biorefineries are central to the transition toward a circular bioeconomy; however, their increasing scale and technological heterogeneity, and the integration of biological, chemical, and thermochemical processes introduce complex challenges related to safety, sustainability, and operational reliability. Existing Safe‐and‐Sustainable‐by‐Design
Fernando Ramonet
wiley   +1 more source

Weighing Policy Effectiveness Through Recent Forest Fire Status

Fire
Forest fires pose a great threat to the global ecological environment as well as human life and the safety of property. Formulating effective policies for preventing forest fires is not only a scientific concern but also an urgent need for government ...
Guangming Wu, Qichao Yao, Maowei Bai, Lamei Shi, Zhou Wang, Keyan Fang, Futao Guo, Yanyan Pei   +7 more
doaj   +1 more source