Results 61 to 70 of about 23,668 (218)

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

open access: yesPolymer Engineering &Science, EarlyView.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan   +5 more
wiley   +1 more source

Optimizing potassium polysulfides for high performance potassium-sulfur batteries

open access: yesNature Communications
Potassium-sulfur batteries attract tremendous attention as high-energy and low-cost energy storage system, but achieving high utilization and long-term cycling of sulfur remains challenging.
Wanqing Song   +8 more
doaj   +1 more source

Arbuscular mycorrhiza in the urban jungle: Glomeromycotina communities of the dominant city tree across Amsterdam

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Trees in cities provide a great number of benefits to people and nature, but they are challenged by harsh conditions. Trees rely on helpful fungi in their roots to get essential nutrients from the soil, but we do not know which of these fungi are resistant to city landscapes.
Casper T. Verbeek   +2 more
wiley   +1 more source

Advances in research on impulse hydro‐turbine technology

open access: yesRiver, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li   +7 more
wiley   +1 more source

The Influence of the Machining Drill and Direction of Rotation on the Surfaces of Ti6Al4V Dental Implants Subjected to Implantoplasty

open access: yesJournal of Functional Biomaterials
Implantoplasty is widely used to treat peri-implantitis by removing biofilms from Ti6Al4V dental implants using rotating drills. This study examined the effects of diamond and tungsten carbide drills, and rotation direction (clockwise/counterclockwise ...
Esteban Padullés-Gaspar   +6 more
doaj   +1 more source

Assessment of Wear rate and Coefficient of Friction of Al6262 WC/MoS2 under wet sliding condition [PDF]

open access: yesMATEC Web of Conferences
The present paper aims at the results of an experimental examination of hybrid metal matrix composites using stir-casting technique.Aluminum alloy (Al 6062) samples reinforced with Tungsten Carbide (WC) and Molydedneum diSulphide are given. 2wt.% , 4wt.%,
Hemadri Kadapa   +3 more
doaj   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

open access: yessteel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann   +6 more
wiley   +1 more source

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa   +9 more
wiley   +1 more source

Fourteen‐analyser high‐resolution hard X‐ray emission spectrometer at I20 beamline at Diamond Light Source

open access: yesJournal of Synchrotron Radiation, EarlyView.
A high‐efficiency 14‐analyser X‐ray emission spectrometer that offers novel capabilities has been developed for I20‐Scanning at Diamond Light Source.We report the technical design, implementation and operation of a newly developed X‐ray emission spectrometer on the I20 beamline at Diamond Light Source.
Shusaku Hayama   +8 more
wiley   +1 more source

Occupational exposure to metal welding and cataract: A systematic review and meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract Background Metal welding generates ultraviolet radiation (UVR) of cataractogenic wavelengths, and UVR emitted during welding has been associated with cataract formation, but results from prior studies are conflicting. Methods We conducted a systematic review and meta‐analysis of epidemiological studies addressing associations between ...
Jakob Bjerager   +5 more
wiley   +1 more source

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