Results 21 to 30 of about 1,146 (177)

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Porous Organic Polymers: From Molecular Design to Scalable Technologies

open access: yesSmall, EarlyView.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem   +12 more
wiley   +1 more source

The Study of the Performance of the Diamond Wheel’s Steel and CFRP Hubs in Tungsten Carbide (WC) Grinding

open access: yesApplied Sciences, 2023
Tungsten carbide (WC) has been widely utilized in recent years in the hardware, mechanical, and chemical industries and in national defense because of its high hardness, anti-wear, low temperature, and anti-corrosion properties.
Yao-Tsung Lin   +4 more
doaj   +1 more source

Research on Grinding Performance of Electroplated Coarse-Grained Diamond Grinding Wheel by Dressing

open access: yes, 2023
In precision grinding of hard and brittle materials, coarse-grained diamond grinding wheels are increasingly favored for their efficiency and contour accuracy. However, challenges in dressing these grinding wheels have hindered their widespread adoption.
Yongqi Xia   +3 more
openaire   +1 more source

Evaluation of bone preparation approaches using length‐based analysis and targeted sequencing for forensic human identification of historic skeletal remains

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract Advances in DNA technology have significantly enhanced the forensic community's ability to develop genetic profiles from unidentified human skeletal remains. However, sampling requires mechanical grinding of hard tissues before DNA isolation. This processing can compromise genetic profiles, particularly in aged bones.
Ciara Rhodes   +4 more
wiley   +1 more source

On-Machine Precision Form Truing and In-Situ Measurement of Resin-Bonded Spherical Diamond Wheel

open access: yesApplied Sciences, 2020
The resin-bonded spherical diamond wheel is widely used in arc envelope grinding, where the demands for form accuracy are high and the form truing process is challenging.
Jinhu Wang   +4 more
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Effect of grinding wheel type and cooling method on grinding quality of SiCf/SiC ceramic matrix composites

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesSiCf/SiC fiber-reinforced ceramic matrix composites have been widely used in aerospace, nuclear energy, and high temperature structural parts due to their excellent high-temperature resistance, high specific strength, and oxidation resistance ...
Ben WANG   +3 more
doaj   +1 more source

Research and Progress on Truing and Sharpening Process of Diamond Abrasive Grinding Tools

open access: yesApplied Sciences, 2022
With respect to the truing and sharpening of diamond abrasive grinding tools, traditional machining methods are briefly described, and new dressing methods, such as the laser dressing method, are described in detail. It is pointed out that laser dressing
Song Cai   +4 more
doaj   +1 more source

Influence of Backside Surface and Subsurface Damage in Gallium Nitride Wafers on Facet Quality and Violet‐Emitting Laser Diode Performance

open access: yesphysica status solidi (a), Volume 223, Issue 14, 22 July 2026.
Backside thinning techniques critically influence GaN laser performance. Compared to lapping, grinding reduces subsurface damage depth fivefold and lowers wafer bow, while mechanical polishing eliminates subsurface damage entirely. These improvements directly translate to smoother cleaved facets and a nearly 40% reduction in laser threshold current ...
S. Makhladi   +6 more
wiley   +1 more source

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