Results 11 to 20 of about 68,370 (267)

Boron Buckminsterfullerene [PDF]

open access: yesChemical Science
Fullerenes, spherical molecules made entirely of carbon atoms, have played a foundational role in the birth of nanoscience. Despite extensive research, however, comparable structures composed of other elements has remained elusive, highlighting the unique bonding properties of carbon that enable the formation of such remarkable ...
Hyun Wook Choi   +6 more
openaire   +2 more sources

Slovak and Czech personalities of the national revival in the reception of Cyril and Methodius Brotherhood [PDF]

open access: yesSlovenska Literatura, 2023
By analyzing literary works, correspondence and other materials of the members of the secret political organization in Kyiv "Cyril and Methodius Brotherhood", it became evident that the members were acquainted with the literary and scholarly works of Ján
Oleksandr Boroň
doaj   +1 more source

Influence of Boron on Initial Austenite Grain Size and Hot Deformation Behavior of Boron Microalloyed Steels

open access: yesCrystals, 2015
The initial austenite grain size of boron microalloyed steel with three different amounts of boron (20, 40, and 60 ppm) was investigated under different heating temperatures (1150, 1100, and 1050 °C), and hot compression tests of samples in a wide range ...
Yong-liang Gao, Xiang-xin Xue, He Yang
doaj   +1 more source

Aggregation-Induced Fluorescence of Carbazole and o-Carborane Based Organic Fluorophore

open access: yesFrontiers in Chemistry, 2019
Carbazole based fluorophores 9-butyl-3,6-bis-(phenylethynyl)-9H-carbazole (1) and 9-butyl-3,6-bis-(2-phenyl-o-carborane)-9H-carbazole (2) were synthesized via Sonogashira type cross-coupling reaction and followed by insertion with decaborane.
Jiemin Jiao   +7 more
doaj   +1 more source

Corrosion behavior and characterization of plasma nitrided and borided AISI M2 steel [PDF]

open access: yesMaterials Research, 2014
This study investigates the corrosion behaviors of plasma nitrided (PN) and borided AISI M2 steels. The PN process was carried out in a dc-plasma system at a temperature of 923K for 6 h in a gas mixture of 80%N2-20%H2 under a constant pressure of 5 mbar.
Ibrahim Gunes   +2 more
doaj   +2 more sources

Development and Elucidation of a Novel Fluorescent Boron-Sensor for the Analysis of Boronic Acid-Containing Compounds

open access: yesSensors, 2017
Novel boron-containing drugs have recently been suggested as a new class of pharmaceuticals. However, the majority of current boron-detection techniques require expensive facilities and/or tedious pretreatment methods.
Yoshihide Hattori   +4 more
doaj   +1 more source

Silver-modified polyniobotungstate for the visible light-induced simultaneous cleavage of C–C and C–N bonds

open access: yesPolyoxometalates, 2023
Silver-modified polyniobotungstate based on Nb/W mixed-addendum polyoxometalate with formula Ag9[P2W15Nb3O62]·21H2O (Ag-Nb/W) was synthesized and then characterized by various analytical and spectral techniques.
Shujun Li   +7 more
doaj   +1 more source

The crystal structure of poly[(μ 3-imidazolato-κ 3 N:N:N′)(tetrahydrofuran- κ 1 O)lithium(I)], C7H11LiN2O

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2021
C7H11LiN2O, monoclinic, P21/c (no. 14), a = 8.9067(1) Å, b = 8.6975(1) Å, c = 10.2398(1) Å, β = 101.900(3)°, V = 770.491(15) Å3, Z = 4, R gt(F) = 0.0338, wR ref(F 2) = 0.0925, T = 100 K.
Zapf Ludwig, Finze Maik
doaj   +1 more source

Use of Underground Mining Activities in Earthquake Search and Rescue Works

open access: yesInternational Journal of Economic and Environment Geology, 2023
Although the mining sector has the task of providing raw materials directly or indirectly to industrial establishments, it unfortunately contains great dangers and risks for its employees in terms of occupational health and safety ...
Süleyman Sırrı Sargın   +1 more
doaj   +1 more source

Defect-induced B4C electrodes for high energy density supercapacitor devices

open access: yesScientific Reports, 2021
Boron carbide powders were synthesized by mechanically activated annealing process using anhydrous boron oxide (B2O3) and varying carbon (C) sources such as graphite and activated carbon: The precursors were mechanically activated for different times in ...
Özge Balcı   +5 more
doaj   +1 more source

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