Results 101 to 110 of about 1,852,592 (191)

Electronics‐Free Visual Monitoring of Dry Eye Disease‐Related Tear Biomarkers Using Smart Scleral Lenses

open access: yesAdvanced Science, EarlyView.
An electronics‐free smart scleral lens passively monitors dry eye disease‐related tear biomarkers through colorimetric sensing of chloride, pH, and ocular surface temperature. Smartphone‐assisted image analysis enables quantitative interpretation, providing a simple, non‐invasive strategy for ocular health monitoring without integrated electronics ...
Ziheng Wang   +15 more
wiley   +1 more source

Flotation of gold-bearing pyrite and arsenopyrite from a refractory Ore: Reagent optimization and kinetic evaluation

open access: yesResults in Engineering
Flotation is widely employed as a preconcentration step prior to the pretreatment of refractory sulfidic gold ores; however, the selection and optimization of reagents critically govern both gold recovery and concentrate grade.
Hassan Behrouzi   +3 more
doaj   +1 more source

Programmable Sequential 4D Actuation in Multistable Kirigami Metamaterials

open access: yesAdvanced Science, EarlyView.
This study presents a modular kirigami metamaterial framework enabling programmable multistability and sequential 4D actuation. By coupling geometry‐controlled multistability with material‐dependent recovery kinetics, spatiotemporal deformation can be precisely programmed.
Eui‐Hyun Kim   +3 more
wiley   +1 more source

Atomistic Kinetics of Dislocation‐Mediated Grain Growth in Monolayer MoS2

open access: yesAdvanced Science, EarlyView.
Atomic‐resolution in‐situ heating microscopy directly visualizes dislocation‐mediated grain boundary migration and grain growth in monolayer MoS2. Mobile grain boundaries migrate through collective motion of Mo 5|7 dislocations, whereas S 5|7 defects remain largely immobile.
Chang‐Won Choi   +11 more
wiley   +1 more source

Sparse attention convolution-ViT model for working condition recognition in zinc flotation

open access: yes工程科学学报
Accurate recognition of working conditions can optimize the zinc flotation process and improve its efficiency. Traditionally, this recognition heavily relies on manual observations of froth appearance, a method prone to human error and subjective ...
Yue SU   +6 more
doaj   +1 more source

Single‐Molecule Imaging of Endogenous RNA Using a Miniaturized and Circularly Permuted CRISPR‐Cas13 Degron‐Masking System CDegSR

open access: yesAdvanced Science, EarlyView.
CDegSR, a new tool for imaging RNA at single molecule level in living cells was developed by researchers. Background noise was eliminated by protein engineering and making it degrade when not bound to its target. This allowed individual RNA molecules to be clearly imaged and tracked.
Shipeng Shao, Hongchen Zhang
wiley   +1 more source

Probabilistic Computing via Gate‐Tunable Random Telegraph Noise

open access: yesAdvanced Science, EarlyView.
Intrinsic random telegraph noise in metal–oxide–semiconductor field‐effect transistors is harnessed to create gate‐tunable probabilistic bits. By modulating carrier‐trapping dynamics, the device produces stochastic binary outputs with a continuous bias‐to‐probability transfer.
Gyungwon Yun   +8 more
wiley   +1 more source

Flotation of silicon carbide from waste sludges [PDF]

open access: yes
"The Bureau of Mines conducted laboratory beneficiation tests on four samples of waste granite sludge to devise a method of recovering silicon carbide (sic).

core  

Amphibious Movement of Microrobots Inspired by Water Spiders

open access: yesAdvanced Science, EarlyView.
Inspired by the water strider, a novel microrobot is designed to maintain amphibious mobility in complex environments. It retains the ability to traverse the air‐liquid interface and perform directional movement within sophisticated, multifaceted environments, including complex gastric wall structures, with precise controllability.
Xiao Hu   +7 more
wiley   +1 more source

Column flotation of multiple products from a fluorite ore [PDF]

open access: yes
"The U.S. Bureau of Mines investigated column flotation for recovery of a high-grade fluorite (caf2) concentrate and byproduct concentrates from the Fish Creek fluorite deposit in Eureka County, Nevada, The recovery scheme consisted of (1) grinding the ...

core  

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