Results 71 to 80 of about 53,461 (266)

Kinetika Fotodegradasi-UV PVC Beraditif Benzophenon

open access: yesJurnal Kimia Sains dan Aplikasi, 1999
Telah diteliti kinetika fotodegradasi-UV pada PVC dengan penambahan aditif benzophenon. Film PVC dibuat dengan metode penguapan pelarut. Aditif benzophenon sebanyak 0,5% ditambahkan pada PVC. Film PVC difotodegradasi dengan sinar UV selama 30, 50, 70, 90,
Parsaoran Siahaan
doaj   +1 more source

Arthropod‐Inspired Miniature Modular Vibration Direct‐Drive Robot With Untethered Locomotion

open access: yesAdvanced Science, EarlyView.
This work presents an arthropod‐inspired untethered miniature modular vibration direct‐drive robot. By utilizing standardized driving units and nested locking interfaces, on‐demand reconfiguration into quadruped, hexapod, octopod, and circular morphologies is achieved.
Shijing Zhang   +4 more
wiley   +1 more source

Technical Notes: Determination of Manning Roughness Coefficient for PVC Gutters

open access: yesJurnal Teknik Sipil, 2013
This study is about the determination of the Manning roughness coefficient for a PVC (Polyvinyl Chloride) gutter and of its capacity due to longitudinal-slope changes.
Mas Mera , Rizki Robi
doaj   +1 more source

Smartphone‐Guided Visible Light Modulation of RSNOs for Antimicrobial Activity via Controlled Nitric Oxide Release

open access: yesAdvanced Science, EarlyView.
A light‐activated catheter insert combines antimicrobial blue light with nitric oxide release to generate complementary oxidative and nitrosative stress, producing potent broad‐spectrum antimicrobial activity. The approach achieves greater than 4‐log reductions in bacterial and fungal viability and significantly reduces Staphylococcus aureus ...
Alexander Bruckmann   +7 more
wiley   +1 more source

Estimation of the Unperturbed Chain Dimensions of Poly(Vinyl Chloride) Polymer by Various Methods [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1997
Flory Fox, Kurata-Stockmayer, Berry, Inagaki-Suzuki-Kurata, Stockmayer-Fixman and Ahmad-Baloch methods based on the excluded volume theory have been applied to poly(vinyl chloride)-cyclohexanone system to obtain Kq and the radius of gyration.
Mohammad Saleem Khan, Akhtar Saeed
doaj  

Experiments on Nonlocal Fluid‐Flow Metamaterials

open access: yesAdvanced Science, EarlyView.
A nonlocal fluid‐flow metamaterial composed of standard microfluidic tubes and connectors is designed. Hence, the current of the system at one position depends on the gradient of fluid flow at many other positions, leading to unusual alternating backward and forward laminar flows of water.
Ke Wang, Yi Chen, Martin Wegener
wiley   +1 more source

Spatially Confined/Ligand‐Directed Ultrabright NIR‐AIE Nanoprobe for In Vitro Rapid Detection and In Situ Imaging of Bacterial Septic Arthritis

open access: yesAdvanced Science, EarlyView.
Inorganic PbS quantum dots spatially confine AIEgens and enable cooperative luminescence within a ligand‐directed core–shell–shell nanoassembly, generating ultrabright NIR PPANPs with enhanced fluorescence and photothermal performance. The platform enables 10‐min S.
Yujian Li   +15 more
wiley   +1 more source

MgO NPs reinforced PCL/PVC nanocomposite films with enhanced UV shielding and thermal stability for packaging applications

open access: yesOpen Physics
In this study, poly(ε-caprolactone) (PCL) and polyvinyl chloride (PVC) nanocomposite films reinforced with magnesium oxide (MgO) nanoparticles were successfully fabricated for potential use in UV-shielding packaging and optoelectronic applications ...
Coşkun Meltem   +3 more
doaj   +1 more source

Reference Electrode‐Free Nitrate Sensing via Differential Temperature‐Modulated Potentiometry in Printed Symmetric SC‐ISEs

open access: yesAdvanced Electronic Materials, EarlyView.
This work proposes and validates a method for measuring nitrate concentration with printed, solid‐state ion‐selective electrodes that does not require a stable reference electrode. The approach uses brief, localized heating pulses to generate a concentration‐dependent voltage response that is drift‐resilient and log‐linear from 0.1 to 100 mm, while ...
Lucas Lahann   +2 more
wiley   +1 more source

Overcoming the Nyquist Limit in Molecular Hyperspectral Imaging by Reinforcement Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
Explorative spectral acquisition guide automatically selects informative spectral bands to optimize downstream tasks, outperforming full‐spectrum acquisition. The selected hyperspectral data are used for tasks such as unmixing and segmentation. BandOptiNet encodes selection states and outputs optimal bands to guide spectral acquisition. Recent advances
Xiaobin Tang   +4 more
wiley   +1 more source

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