Results 101 to 110 of about 50,297 (235)

Bio‐Based Epoxy Resins from Estragole: Achieving High Glass Transition Temperatures Comparable to DGEBA and Simultaneously Low Viscosities

Macromolecular Materials and Engineering, EarlyView.
Two novel bio‐based epoxy monomers, diglycidyl‐4‐allylphenol (DG‐4A) and triglycidyl‐diallylphenol (TG‐DA), derived from estragole (92% and 72% bio‐content), were synthesized and cured with isophorone diamin (IPDA) and 4,4´‐diaminodiphenyl sulfone (DDS). The resins show high Tgs, with DG‐4A reaching and TG‐DA exceeding DGEBA‐based systems. These resins
Florian Bauer, Elisabeth Schamel, Herbert Schlachter, Gerd Wehnert, Dominik Söthje   +4 more
wiley   +1 more source

Mechanical and Electrochemical Performance of a PETEA‐Based Solid‐State Electrolyte for Multifunctional Structural Battery Composites

Nano Select, EarlyView.
Multifunctional structural battery composites can store electrical energy while bearing mechanical loads, thereby reducing parasitic mass and volume. We present a novel solid‐state PETEA‐based electrolyte, which can be cured in situ after infiltration into the reinforcement fibers in its monomer form.
Daniel Vogt, Caroline Willuhn, Peter Michalowski, Georg Garnweitner, Arno Kwade   +4 more
wiley   +1 more source

FLIGHT LABORATORIES AND FLIGHT DATA RECORDERS

Perner’s Contacts, 2011
The aim of this paper is to familiarize the reader with the specifications of Flight Data Recorders used in aviation and used for the flight laboratory of University of Žilina, which is the part of project named:”Centre of Excellence for Air Transport ...
Branislav Kandera
doaj  

A Novel Two‐Stage Flexible Flow Shop Batch Scheduling Model for Grinding Workshops

Naval Research Logistics (NRL), EarlyView.
ABSTRACT The growing need for data storage in data centers has increased the demand for mechanical hard disks due to their low cost and high reliability. Aluminum substrates are the most popular base plates for mechanical hard disks because of their high hardness and low cost.
Jun Xu, Xuanru Pan, Chao‐Bo Yan, Guo‐Qiang Fan, Zhixin Liu   +4 more
wiley   +1 more source

Aviation Security: Illusion of Safety or Reality?

Lectio Socialis, 2019
Security is a complicated concept where people have to be secure and also feel it. Serious risk calculations determine the fact but also the feeling has to be included in the policy development.
Sotirios Kalfoglou
doaj  

Robustness Assessment of Public Transport Networks in Various Graph Representations: Systematic Review, Decision Support, and Case Study

Networks, EarlyView.
ABSTRACT The analysis of certain properties of the underlying graph of a public transport network generates insights about the network's structure. Hereby, the choice of the graph representation depends on a trade‐off between complexity reduction and information preservation to adequately model a public transport network.
Michael Palk, Stefan Voß, Raka Jovanovic   +2 more
wiley   +1 more source

Contesting Regulatory Capacity: Exploring Doctrines in the Regulatory State

Public Administration and Development, EarlyView.
ABSTRACT The contemporary literature on regulation and development has emphasised the importance of low discretion devices for achieving desired policy objectives. At the same time, there has been a growing recognition that state capacity in general, and regulatory capacity more specifically, are essential for achieving development goals in a world of ...
Bruno Queiroz Cunha, Martin Lodge
wiley   +1 more source

Novel Recyclable Hierarchical Carbon Fiber/Epoxy Composites: Preserving Fiber Length and Orientation Using Elium

Polymer Composites, EarlyView.
Schematic illustration of a hierarchical recycling approach that preserves reinforcing fiber orientation. ABSTRACT Current recycling methods for polymer matrix composites produce short, unoriented carbon fibers, limiting their use to intermediate‐strength applications.
Carol Winnifred Rodricks, Annabell Prockat, Gerhard Kalinka, Volker Trappe   +3 more
wiley   +1 more source

Prevalence and influencing factors of dry eye syndrome among pilots: A survey study. [PDF]

PLoS One
Zhang M, Liu T, Liang Y, Qi Y, Li X, Hu Q.   +5 more
europepmc   +1 more source

Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax

Polymer Composites, EarlyView.
Graphical overview of the manufacturing and characterization of bio‐based polyurethane composites reinforced with woven jute and flax fibers produced by the VARTM process. Mechanical, thermal, and microstructural analyses reveal differences in stiffness, thermal stability, and interfacial behavior between the natural fiber composites.
Vanessa A. Santos, Kelvin M. K. Iwasaki, Felipe Ruivo Fuga, Ricardo De Medeiros   +3 more
wiley   +1 more source