Results 51 to 60 of about 47,074 (301)

Improvement of the Method for Determining Total Nitrogen in Water Quality Using Alkaline Potassium Persulfate Ultraviolet Spectrophotometry

Yankuang ceshi
Alkaline potassium persulfate (K2S2O8) ultraviolet (UV) spectrophotometry is the routine method to analyze total nitrogen (TN) in water and is important for studying pollutants in water and the geochemical cycling of TN.
Zhenchao LIU, Zhixiong LI, Qianshu LU, Xiaona WANG, Song ZHANG, Yaohua HU   +5 more
doaj   +1 more source

An 8-year record of phytoplankton productivity and nutrient distributions from surface waters of Saanich Inlet

Scientific Data, 2022
Measurement(s) chlorophyll a • biogenic silica • carbon uptake  • nitrogen uptake • particulate carbon • particulate nitrogen • inorganic macronutrient dissolved in ocean water • concentration of silicic acid in ocean water Technology Type(s) fluorometer
Sile M. Kafrissen, Karina E. Giesbrecht, Brandon J. McNabb, Jennifer E. Long, Curtis Martin, Shea N. Wyatt, Marcos G. Lagunas, Diana E. Varela   +7 more
doaj   +1 more source

The Observations Of The X-Ray Source Hz Herculis-Hercules X-1 [PDF]

, 1980
NASAESASRCAstronom
Black, J., Burger, M., Davis, R. J., Deloore, C., Dupree, A. K., Gursky, H., Hammerschlaghensberge, G., Hartmann, Lee W., Howarth, I. D., Lamers, Hjglm, Matilsky, T. A., Raymond, J., Sandford, M. C. W., Sanner, F., Vandenbout, P., Vandenheuvel, E. P. J., Willis, A. J., Wilson, R.   +17 more
core   +1 more source

Unlocking the Full Potential of Zinc Oxide/Cerium Oxide Composite Nanoparticles for Removal of Mixed Pharmaceutical and Dye Pollutants in Water

Advanced Materials Interfaces, EarlyView.
ZnO/CeO2 composite nanoparticles synthesized via a facile hydrothermal method simultaneously degrade ciprofloxacin, tetracycline, methylene blue, and methyl orange in a four‐component mixture under UV irradiation. The Ce3+/Ce4+ redox cycling and oxygen vacancies at the ZnO/CeO2 interface suppress charge recombination and enhance reactive species ...
Aditya Rianjanu, Rima Nurfitria, Eka Nurfani, Rizky Aflaha, Kuwat Triyana, Tarmizi Taher, Agustina Sus Andreani, Noto Susanto Gultom, Januar Widakdo, Dian Ahmad Hapidin, Erwin Peiner, Hutomo Suryo Wasisto   +11 more
wiley   +1 more source

Effect of EGCG–Methacrylate-Functionalized Resin Infiltrant on White Spot Lesions: An In Vitro Study

Journal of Functional Biomaterials
This study evaluated the color change (ΔE00) and penetration depth (PD) of white spot lesions (WSLs) infiltrated with the resin infiltrant (Icon®) functionalized with methacrylate epigallocatechin-3-gallate (EGCG). To introduce polymerizable double bonds,
Karin Landmayer, Bruna de Oliveira Iatarola, Talita Portela Pereira, Raquel Shimizu Mori, Alyssa Teixeira Obeid, Mariele Vertuan, Daniela Alvim Chrisostomo, Ana Carolina Magalhães, Lulwah Alreshaid, Paulo Henrique dos Santos, Anuradha Prakki, Luciana Fávaro Francisconi-dos-Rios   +11 more
doaj   +1 more source

Optical Diversity and Nanostructural Organization in the Colored Scales of Sternotomis

Advanced Optical Materials, EarlyView.
Vivid colors in Sternotomis beetles originate from nanoscale photonic architectures embedded within individual scales. Here, we provide a comparative optical and structural analysis of 57 scale types that reveal how ordered, quasi‐ordered, and disordered 3D networks tune color, saturation, and angular response.
Viola Bauernfeind, Viola V. Vogler‐Neuling, Ilja Gunkel, Primož Pirih, Ullrich Steiner, Bodo D. Wilts   +5 more
wiley   +1 more source

Photoluminescence emission spectra of Makrofol® DE 1-1 upon irradiation with ultraviolet radiation

Results in Physics, 2017
Photoluminescence (PL) emission spectra of Makrofol® DE 1-1 (bisphenol-A based polycarbonate) upon irradiation with ultraviolet radiation of different wavelengths were investigated.
M. El Ghazaly, Abdulkadir Aydarous
doaj   +1 more source

Near‐Infrared‐Driven Metal–Organic Frameworks‐Based Nanorobots for Controlled Photothermal‐Chemical Therapy Synergistic Induction of Cancer Cell Death

Advanced Robotics Research, EarlyView.
To achieve efficient cancer cell death, a bowl‐shaped PDA@UiO‐66@DOX nanorobot drug‐delivery nanoplatform was developed. Near‐infrared irradiation not only drives the nanorobot to exhibit self‐thermophoretic motion and elevates temperature but also triggers Doxorubicin (DOX) release via hyperthermia, enhancing cancer cells uptake of DOX and thereby ...
Tong Lin, Jie Yang, Yongcheng Li, Yuepeng Cai, Xiaosong Zhou, Ting Chen, Renfeng Dong   +6 more
wiley   +1 more source

Analytical method development of pitavastatin-loaded SNEDDS formulation: Multivariate analysis regarding ultraviolet spectrophotometry analysis

Journal of Food and Pharmaceutical Sciences, 2019
Herein, this work aimed to develop and assess feasibility of multivariate model of partial least square analysis for specific quantification of pitavastatin (PVT)-loaded self-nano emulsion (SNE) formulation using UV Vis spectrophotometry. PVT loaded into
Kuncahyo I, Choiri S, Fudholi A, Abdul Rohman, Ronny Martien   +4 more
doaj   +1 more source

The Distance to the Large Magellanic Cloud from the Eclipsing Binary HV2274 [PDF]

, 1998
The distance to the Large Magellanic Cloud (LMC) is crucial for the calibration of the Cosmic Distance Scale. We derive a distance to the LMC based on an analysis of ground-based photometry and HST-based spectroscopy and spectrophotometry of the LMC ...
A. Giménez, D. H. Bradstreet, E. F. Guinan, E. L. Fitzpatrick, F. P. Maloney, I. Ribas, J. D. Pritchard, L. E. DeWarf, Massa D., P. A. Maurone, Watson R. D.   +10 more
core   +3 more sources