Results 91 to 100 of about 3,925,938 (294)

Heavy-electron metals

open access: yesNature, 1986
A new class of metals has been found in which the electrons have effective masses orders of magnitude larger than the free-electron mass. Some of these metals are superconducting at low temperatures. This superconductivity seems to be unconventional, with an underlying mechanism different from that in all other known superconductors.
Fisk, Z, Ott, HR, Rice, TM, Smith, JL
openaire   +4 more sources

Impact of Various Rotary Friction Welding Process Parameters on the Mechanical Properties of a Steel–Aluminum Joint

open access: yesAdvanced Engineering Materials, EarlyView.
Rotary friction welding of steel E355 and the aluminum alloy EN AW‐6082 can lead to the formation of brittle intermetallic phases. The primary process parameters are varied in order to determine their influence on this intermetallic phase formation and the resulting mechanical properties.
Laura Huber   +4 more
wiley   +1 more source

Heavy Metals and Autism [PDF]

open access: yesJournal of Heavy Metal Toxicity and Diseases, 2016
Autism is rapidly growing worldwide with massive impact on families, country and economy. Genetic and environmental causes are thought to be the main groups of aetiology of autism. Genetic mutations in multiple genes are identified, but they affect only less than 1/3 of cases.
openaire   +1 more source

Direct Natural and Artificial Aging of Aluminum Alloy AlSi10Mg After Laser Powder‐Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Laser powder‐bed fusion of metals aluminum alloy AlSi10Mg has been directly aged. Artificial aging after natural aging is considered. The hardening potential is high for the top part of the samples as well as after short natural aging. The hardening potential is substantially reduced for the bottom part of the samples, as well as after natural aging of
Rabea Steuer   +6 more
wiley   +1 more source

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

open access: yesAdvanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes   +3 more
wiley   +1 more source

Distribution, speciation, bioavailability, risk assessment, and limit standards of heavy metals in Chinese herbal medicines

open access: yesPharmacological Research - Modern Chinese Medicine, 2023
Introduction: There are increasing concerns on the safety of traditional Chinese medicine (TCM) worldwide. Chinese herbal medicine (CHM), an important type of TCM, may be contaminated by exogenous harmful substances, including heavy metals during ...
Tian-Tian Zuo   +9 more
doaj  

Chronosequence Effect of Post Tin Mining Ponds to Metals Residu and Microecosystem Change

open access: yesOmni-Akuatika, 2017
The ecological change caused by tin mining activity is among the most important sorts of problem in the environment, including heavy metals contamination and change of microecosystem.
Andri Kurniawan
doaj   +1 more source

Heavy Metals in the Environment: an Overview [PDF]

open access: yesEnvironmental Health Perspectives, 1973
The second Research Triangle Conference on Heavy Metals in the Environment was held to further highlight the many diverse aspects of trace metal research currently being conducted by area scientists. The biological effects of toxic trace metals in both marine and agricultural ecosystems as well as aspects of metal analysis, biochemistry, and toxicology
openaire   +8 more sources

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri   +16 more
wiley   +1 more source

Analytical Methods for the Determination of Heavy Metals in the Textile Industry [PDF]

open access: yesKemija u Industriji, 2007
Heavy metals in textile wastewater represent a major environmental problem, and are a potential danger to human health when present on textiles. Furthermore, the presence of some metals influences the production of textiles.
Steffan, I., Rezic, I:, Zeiner, M.
doaj  

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