Results 21 to 30 of about 7,252,354 (295)

Kirigami–Origami‐Inspired Lead‐Free Piezoelectric Ceramics

open access: yesAdvanced Science, 2023
Kirigami‐ and oirigami‐inspired techniques have emerged as effective strategies for material structure design; however, the use of these techniques is usually limited to soft and deformable materials.
Zehuan Wang   +9 more
doaj   +1 more source

A cross-sectional study of physical and psychosocial expectations of orthognathic surgery patients based on their typology

open access: yesAdvances in Oral and Maxillofacial Surgery, 2021
Aims: Orthognathic surgery corrects craniofacial and dentofacial disproportion that compromises breathing, masticatory function, and aesthetics. A patient's typology influences their psychosocial and physical pre-operative expectations and post-operative
Devie Falinda   +5 more
doaj   +1 more source

Finite element modeling and random vibration analysis of BGA electronic package soldered using lead free solder alloy − Sn-1Cu-1Ni-1Ag

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2019
As a result of the ban of lead from solder joints, many lead-free solder joints were developed. Most of the electronic equipment is subjected to random vibration.
Jayesh S., Elias J.
doaj   +1 more source

Experimental and mechanical characterizations of a lead free solder alloy for electronic devices [PDF]

open access: yes, 2012
Electronic power modules devices are paramount components in the aeronautical,automotive and military applications. The solder layers are the most critical parts of the module and are usually subjected in their whole life to complex loading conditions ...
Alexis, Joël   +3 more
core   +2 more sources

Emission Trading Systems and the Optimal Technology Mix [PDF]

open access: yes, 2011
Cap and trade mechanisms enjoy increasing importance in environmental legislation worldwide. The most prominent example is probably given by the European Union Emission Trading System (EU ETS) designed to limit emissions of greenhouse gases, several ...
Zöttl, Gregor
core   +2 more sources

Impact of transition metal oxidation state on the multiferroic properties and magnetoelectric coupling strength of BST ceramics

open access: yesJournal of Asian Ceramic Societies, 2020
Effect of starting Fe precursor (Fe2O3 and Fe3O4) on the multiferroic properties of BST (Ba0.96Sr0.04Ti0.91Fe0.09O3) ceramics has been investigated. Considerable changes in the ferroelectric and magnetic properties of these ceramics were observed.
Aanchal Chawla   +3 more
doaj   +1 more source

An Environmentally Stable and Lead-Free Chalcogenide Perovskite

open access: yes, 2019
Organic-inorganic halide perovskites are intrinsically unstable when exposed to moisture and/or light. Additionally, the presence of lead in many perovskites raises toxicity concerns.
Balasubramanian, Ganesh   +16 more
core   +1 more source

Evaluation of meaningful change in bowel movement frequency for patients with carcinoid syndrome

open access: yesJournal of Patient-Reported Outcomes, 2019
Background Carcinoid syndrome is associated with a reduced quality of life that can be attributed to symptoms such as diarrhea and fatigue as well as social and financial issues.
Stacie Hudgens   +11 more
doaj   +1 more source

Nano Coated Lead Free Solders for Sustainable Electronic Waste Management

open access: yesBrazilian Archives of Biology and Technology
Lead has been used in a wide range of applications, but in the past decades it became clear that its high toxicity could cause various problems. Studies indicate that exposure to high concentrations of lead can cause harmful damages to humans.
K. Arun Vasantha Geethan   +4 more
doaj   +1 more source

Toxic trace element contents in gluten-free cereal bars marketed in Argentina [PDF]

open access: yes, 2015
Celiac disease is a food intolerance triggered by the ingestion of gluten-containing cereals; the only therapy is a strict gluten-free diet for life.
Hidalgo, Melisa Jazmin   +4 more
core   +2 more sources

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