Results 71 to 80 of about 16,338 (322)

Análise sistemática de reagentes e resíduos sem identificação Systematic analysis of unidentified chemicals and wastes

Química Nova, 2005
This work presents a detailed routine applied to the identification of unknown chemicals and wastes. 786 specimens were analyzed during 20 months. Unknown materials fell into three basic classes: (i) commercial chemicals without labels or illegible ones;
Júlio Carlos Afonso, Jaqueline Amorim da Silveira, Adriana de Sousa Oliveira, Rosilda Maria Gomes Lima   +3 more
doaj   +1 more source

Sustainability Indicators for Open-Cycle Thorium-Fuelled Nuclear Energy [PDF]

, 2012
The potential for countries which currently have a nominal nuclear energy infrastructure to adopt thorium-uranium-fuelled nuclear energy systems, using a once-through “open” nuclear fuel cycle, has been presented by the International Atomic Energy Agency.
,, Ashley, SF, Fenner, RA, Nuttall, WJ, Parks, GT   +4 more
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Chemical modification of brown algae Sargassum glaucescens for thorium biosorption from aqueous solutions [PDF]

مجله علوم و فنون هسته‌ای, 2015
The biosorption process of thorium in a batch system by modified brown algae Sargassum glaucescens is discussed in this paper. For this purpose, the results of biosorption on raw algae and modified by glutaraldehyde and diethylenetriamine (DETA) were ...
Alireza Keshtkar, Mohammad Amin Hassani
doaj  

Uranium exploration methodology in cold climates [PDF]

, 1980
The uranium prospecting boom of the past decade had, as a major consequence, the rapid development and proliferation of exploration methods for source materials.
Sims, J.M.
core  

ESTIMATED MANUFACTURING COSTS FOR THE RECOVERY OF THORIUM AND URANIUM FROM MONAZITE SAND [PDF]

, 1950
Costs are estimated for the production of uranium and pure thorium from monazite concentrates. The process involves; reaction of the monazite with caustic soda, dissolution of the hydrous oxides in hydrochloric acid, separation from the bulk of the rare earths by hydroxide precipitation of thorium and uranium, and purification by solvent extraction ...
G.D. Calkins, R.B. Jr. Filbert
openalex   +4 more sources

Advances in Bioprinting to Model Immune‐Mediated Skin Diseases

Advanced Healthcare Materials, EarlyView.
This review explores how 3D bioprinting drives innovation in developing in vitro skin models that mimic immune‐mediated diseases. It highlights current technologies, key applications in studying skin pathologies, and emerging challenges. The review points toward future opportunities for improving disease modeling and advancing therapeutic and cosmetic ...
Andrea Ulloa‐Fernández, Marica Markovic, Julia Fernández‐Pérez, Georg Stary, Aleksandr Ovsianikov   +4 more
wiley   +1 more source

Microneedle Technology in Psoriasis Management: Mechanistic Insights, Technological Innovation, Clinical Progress, and Challenges

Advanced Healthcare Materials, EarlyView.
This review explores the evolving role of microneedle systems in psoriasis management, highlighting their potential for enhanced drug delivery, diagnosis, and disease monitoring. It also discusses unmet clinical needs for psoriasis management and technical challenges, while outlining strategic directions to advance microneedle integration into routine ...
Fatma Moawad, Yasmine Ruel, Roxane Pouliot, Davide Brambilla   +3 more
wiley   +1 more source

Low‐Temperature Fabrication of Thymosin β4‐Loaded Soluble Microneedles to Promote Wound Healing by Specific Binding to Downregulated Immune Regulators Vsig4 and IL22rɑ2

Advanced Healthcare Materials, EarlyView.
Schematic diagram depicting the fabrication and application of thymosin β4 (Tβ4)‐loaded microneedle patches for wound treatment. The Tβ4 was loaded into chitosan (CS) and sucrose MNs under mild conditions (4°C, 65% relative humidity). The Tβ4 MN patch specifically binds to the downregulated immune regulators Vsig4 and IL22rα2, thereby accelerating ...
Shilong He, Mei Yuan, Changkang Feng, Yixuan Zhang, Jinjing Che   +4 more
wiley   +1 more source

Preparation of Polyacrylonitrile/Iron Oxide Nanofiber Adsorbent Modified with 2-Amino-3-Methyl- 1-Hexanethiol for the Adsorption of Th4+ Ion [PDF]

آب و فاضلاب, 2019
In this study, novel polyacrylonitrile/iron nano oxide (PAN/Fe-ONPs) nanofiber adsorbent modified with 2-Amino-3-methyl-1-hexanethiol (AMH) was synthesized by combination of hydrothermal and electrospinning method and evaluated as an adsorbent for ...
Babak Rouhi Broujeni, Abdolreza Nilchi, Amirhesam Hasani, Reza Saberi   +3 more
doaj   +1 more source