scholarly journals Extremely High-Rate, Uniform Dissolution of Alloy 22 in Anhydrous Organic Solutions at Room Temperature

CORROSION ◽  
10.5006/2081 ◽  
2016 ◽  
Vol 72 (10) ◽  
pp. 1292-1299 ◽  
Author(s):  
E.J. Schindelholz ◽  
M.A. Christie ◽  
S.P. Allwein ◽  
R.G. Kelly
Keyword(s):  
Room Temperature ◽  
High Rate ◽  
Alloy 22 ◽  
Organic Solutions

Imidazole Promoted Efficient Anomerization of β-D-Glucose Pentaacetate in Organic Solutions and Solid State

2019 ◽  
Author(s):  
Meifeng Wang ◽  
Liyin Zhang ◽  
Yiqun Li ◽  
Liuqun Gu
Keyword(s):  
Solid State ◽  
Organic Solvents ◽  
Room Temperature ◽  
Materials Design ◽  
The Future ◽  
Organic Solutions ◽  
Glucose Pentaacetate

<p></p>Anomerization of glycosides were rarely performed under basic condition due to lack of efficiency. Here an imidazole promoted anomerization of β-D-glucose pentaacetate was developed; and reaction could proceed in both organic solvents and solid state at room temperature. Although mechanism is not yet clear, this unprecedent mild anomerization in solid state may open a new promising way for stereoseletive anomerization of broad glucosides and materials design in the future..

647 Development of a Cerium (III) Nitrate-containing Electrospun Dressing for Mitigating Delayed Eschar Removal

2020 ◽  
Vol 41 (Supplement_1) ◽  
pp. S169-S170
Author(s):  
Angela R Jockheck-Clark ◽  
Cortes Williams ◽  
Christine Kowalczewski ◽  
Jahnabi Roy ◽  
Marc A Thompson ◽  
...  
Keyword(s):  
Room Temperature ◽  
Thermal Injury ◽  
Storage Stability ◽  
Wound Dressings ◽  
High Rate ◽  
Burn Wound ◽  
Burn Treatment ◽  
N Application ◽  
Surgical Interventions ◽  
N Release

Abstract Introduction During periods of delayed burn treatment, cells within the eschar leach toxic and immunomodulatory metabolites that can profoundly impact neighboring tissue. Therefore, to reduce the burn-related morbidities and mortalities that are the result of delayed surgical interventions, electrospinning was utilized to generate a novel cerium (III) nitrate (Ce(III)N) dressing. Previously published work has demonstrated that topical Ce(III)N application changes the eschar morphology, and that tissue beneath the treated eschar was generally healthy and had a high rate of graft acceptance. Methods Ce(III)N was dissolved with polyethylene oxide and spun onto a grounded rotating mandrel. The uni-axially spun mesh was compared to a co-axially electrospun dressing that contained a Ce(III)N core. Dressings were evaluated for topography/morphology, porosity and oxygen permeation using scanning electron microscopy, helium pycnometry, and a gas exchange chamber, respectively. Ce(III)N release rates were evaluated, as well as 60-day storage stability. Results All electrospun dressings contained functional Ce(III)N, with the co-axially spun dressing containing three times the amount of Ce(III)N as the traditionally spun dressing. Uni-axially and co-axially spun nanofibers had diameters of 1487±560 nm and 1071±147 nm, and porosities of 83.9% and 74.1%, respectively. Scaffolds released the majority of Ce(III)N within the first hour of wetting. Conclusions All dressings were capable of a burst of Ce(III)N release and maintained stability when stored at room temperature for 60 days. Applicability of Research to Practice Despite advancement in protective equipment worn by military personnel, the incidence of thermal injury is expected to rise in future conflicts. There are no burn wound dressings that can mitigate the pathophysiological processes associated with delayed burn wound treatment.

scholarly journals High‐Rate and Long Cycle‐Life Alloy‐Type Magnesium‐Ion Battery Anode Enabled Through (De)magnesiation‐Induced Near‐Room‐Temperature Solid–Liquid Phase Transformation

2019 ◽  
Vol 9 (45) ◽  
pp. 1902086 ◽  
Author(s):  
Lin Wang ◽  
Samuel S. Welborn ◽  
Hemant Kumar ◽  
Manni Li ◽  
Zeyu Wang ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Liquid Phase ◽  
Room Temperature ◽  
Cycle Life ◽  
High Rate ◽  
Magnesium Ion ◽  
Long Cycle Life ◽  
Alloy Type ◽  
Solid Liquid ◽  
Battery Anode

Room-temperature X-ray response of cadmium–zinc–telluride pixel detectors grown by the vertical Bridgman technique

2020 ◽  
Vol 27 (2) ◽  
pp. 319-328 ◽  
Author(s):  
Leonardo Abbene ◽  
Fabio Principato ◽  
Gaetano Gerardi ◽  
Antonino Buttacavoli ◽  
Donato Cascio ◽  
...  
Keyword(s):  
Room Temperature ◽  
Cadmium Zinc Telluride ◽  
Photon Counting ◽  
Zinc Telluride ◽  
High Rate ◽  
High Flux ◽  
X Ray ◽  
Pixel Detectors ◽  
Vertical Bridgman ◽  
Cadmium Zinc

In this work, the spectroscopic performances of new cadmium–zinc–telluride (CZT) pixel detectors recently developed at IMEM-CNR of Parma (Italy) are presented. Sub-millimetre arrays with pixel pitch less than 500 µm, based on boron oxide encapsulated vertical Bridgman grown CZT crystals, were fabricated. Excellent room-temperature performance characterizes the detectors even at high-bias-voltage operation (9000 V cm−1), with energy resolutions (FWHM) of 4% (0.9 keV), 1.7% (1 keV) and 1.3% (1.6 keV) at 22.1, 59.5 and 122.1 keV, respectively. Charge-sharing investigations were performed with both uncollimated and collimated synchrotron X-ray beams with particular attention to the mitigation of the charge losses at the inter-pixel gap region. High-rate measurements demonstrated the absence of high-flux radiation-induced polarization phenomena up to 2 × 106 photons mm−2 s−1. These activities are in the framework of an international collaboration on the development of energy-resolved photon-counting systems for high-flux energy-resolved X-ray imaging.

Jarosite Nanosheets Fabricated via Room-Temperature Synthesis as Cathode Materials for High-Rate Lithium Ion Batteries

2015 ◽  
Vol 27 (8) ◽  
pp. 3143-3149 ◽  
Author(s):  
Yuan-Li Ding ◽  
Yuren Wen ◽  
Peter A. van Aken ◽  
Joachim Maier ◽  
Yan Yu
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Room Temperature ◽  
Lithium Ion ◽  
High Rate ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis

Fabrication of Macroporous Silicon in Organic Electrolytes and their Luminescence

2017 ◽  
Vol 748 ◽  
pp. 127-131 ◽  
Author(s):  
Wu Lin Li ◽  
Wen Jing Yang ◽  
Mei Long ◽  
Gen Rong Li ◽  
Yan Ma ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Room Temperature ◽  
Electrochemical Process ◽  
Macroporous Silicon ◽  
Organic Solution ◽  
Organic Electrolytes ◽  
Red Luminescence ◽  
Organic Solutions ◽  
Side Illumination ◽  
Nanoporous Layer

The quasi-regular arrangements porous silicon was fabricated by by electrochemical process using organic solutions with front-side illumination, and SEM showed that the morphology of porous silicon was dependent sensitively on the current density, organic electrolytes and their concentration. The results indicate that N-dimethylformamide (DMF) is the best organic solution and quasi-regular arranged pores can be well organized in 20%HF/DMF solution. The luminescence shows fresh porous silicon can emit the red luminescence at room temperature and quench after nanoporous layer destroyed.

scholarly journals Calcium Batteries: Room‐Temperature Rechargeable Ca‐Ion Based Hybrid Batteries with High Rate Capability and Long‐Term Cycling Life (Adv. Energy Mater. 29/2019)

2019 ◽  
Vol 9 (29) ◽  
pp. 1970113
Author(s):  
Jihui Lang ◽  
Chunlei Jiang ◽  
Yue Fang ◽  
Lei Shi ◽  
Shijie Miao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Rate Capability ◽  
High Rate ◽  
High Rate Capability ◽  
Energy Mater ◽  
Cycling Life

Imidazole Promoted Efficient Anomerization of β-D-Glucose Pentaacetate in Organic Solutions and Solid State

2019 ◽  
Author(s):  
Meifeng Wang ◽  
Liyin Zhang ◽  
Yiqun Li ◽  
Liuqun Gu
Keyword(s):  
Solid State ◽  
Organic Solvents ◽  
Room Temperature ◽  
Materials Design ◽  
The Future ◽  
Organic Solutions ◽  
Glucose Pentaacetate

<p></p>Anomerization of glycosides were rarely performed under basic condition due to lack of efficiency. Here an imidazole promoted anomerization of β-D-glucose pentaacetate was developed; and reaction could proceed in both organic solvents and solid state at room temperature. Although mechanism is not yet clear, this unprecedent mild anomerization in solid state may open a new promising way for stereoseletive anomerization of broad glucosides and materials design in the future..

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