Results 71 to 80 of about 32,038 (270)

Computation of the inverse Laplace Transform based on a Collocation method which uses only real values [PDF]

, 2007
We develop a numerical algorithm for inverting a Laplace transform (LT), based on Laguerre polynomial series expansion of the inverse function under the assumption that the LT is known on the real axis only.
A. MurliI, Cuomo S, D'AMORE, LUISA, Rizzardi M.   +3 more
core   +1 more source

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

Land Degradation &Development, EarlyView.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa, Paulo Angelo Fachin, Bruno Teixeira Ribeiro, Edivaldo Lopes Thomaz, Alberto Vasconcellos Inda Junior, Nilton Curi   +5 more
wiley   +1 more source

Terrace grading of SiGe for high-quality virtual substrates [PDF]

, 2002
Silicon germanium (SiGe) virtual substrates of final germanium composition x = 0.50 have been fabricated using solid-source molecular beam epitaxy with a thickness of 2 µm.
Capewell, Adam Daniel, Grasby, T. J., Parker, Evan H. C., Whall, Terry E.   +3 more
core   +1 more source

Supercapacitive Carbon‐Coated δ‐MnO2 Nanosheets as a Solid‐Contact Material for Self‐Testing Potassium‐Ion Biosensors

Small, EarlyView.
A simple and energy‐efficient method was developed to synthesize carbon‐coated δ‐MnO2 nanosheets (δ‐MnO2@C). This multifunctional material serves as both a supercapacitor electrode and a solid‐contact for self‐testing K+‐ion biosensors. Compared to activated carbon, δ‐MnO2@C enhances Faradaic supercapacitive properties, improving the K+‐ion sensing ...
Jaeyeon Lee, Chaeeun Kim, Chaehyung Kim, Yujoon Kim, Seojin Lee, Kangwon Lee, In Young Kim   +6 more
wiley   +1 more source

Ba[C(CN)3]2 and Pb[C(CN)3]2: Two Remarkably Different Heavy Main‐Group Metal Bistricyanomethanides

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Metathesis reactions of either barium dichloride, BaCl2, or lead dichloride, PbCl2, respectively, with Ag[C(CN)3] in water yielded single crystals of anhydrous Ba[C(CN)3]2 and Pb[C(CN)3]2. Ba[C(CN)3]2 crystallizes in the monoclinic space group P21/n (no. 14) with the lattice parameters a = 437.98(3) pm, b = 1685.36(11) pm, c = 1398.87(9) pm, β = 96.541(
Olaf Reckeweg, Ralf J. C. Locke, Falk Lissner, Lkhamsuren Bayarjargal, David Enseling, Thomas Jüstel, Thomas Schleid   +6 more
wiley   +1 more source

Structural Studies of Mercury-Modified Amorphous Films of the Selenium-Antimony System

Фізика і хімія твердого тіла
The structure of mercury-modified amorphous films of the Se-Sb system was studied using the methods of X-ray diffractometry and Raman spectroscopy. It was ascertained that the structure of the phase that formed in the amorphous matrix of the films after ...
V.M. Rubish, M.M. Pop, R.P. Pisak, L.I. Makar, M.O. Durkot, A.M. Solomon, O.O. Spesyvykh, V.V. Boryk, R.O. Dzumedzey   +8 more
doaj   +1 more source

Characterization of Struvite Produced by an Algal Associated Agarolytic Bacterium Exiguobacterium aestuarii St. SR 101

Journal of Pure and Applied Microbiology, 2019
Biomineralization phenomenon of bacteria proved to have various biotechnological and environmental applications. Production of magnesium ammonium phosphate (struvite) crystals by the agarolytic bacterium Exiguobacterium aestuarii St.
Sheeja Leela, Jayappriyan Kothilmozhian Ranishree, Ramesh Kannan Perumal, Rengasamy Ramasamy   +3 more
doaj   +1 more source

Trimerization of NaC2N3 to Na3C6N9 in the Solid [PDF]

, 2000
Sodium dicyanamide NaC2N3 was found to undergo two phase transitions. According to thermal analysis and temperature-dependent X-ray powder diffractometry, the transition of α-NaC2N3 (1a) to β-NaC2N3 (1b) occurs at 33°C and is displacive.
Irran, Elisabeth, Jürgens, Barbara, Schneider, Julius, Schnick, Wolfgang   +3 more
core   +1 more source

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

Archaeometry, EarlyView.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori, Ileana De Giuseppe, Fabrizio Frontalini, Luca Pellegrino, Richard W. Jordan, Pierfrancesco Callieri, Emad Matin, Alireza Askari Chaverdi, Hamid Fadaei, Valeria Mengacci, Fulvio Fantino   +10 more
wiley   +1 more source

Investigation of Stress Status in the Micro-Space of Surface and Subsurface Layer

Communications, 2017
One of main issues when evaluating or analysing quality and functional properties of work-piece is identification of status of residual stress. Every treatment or machining process generates residual stress in the surface and subsurface layers of the ...
Andrej Czan, Michal Sajgalik, Lucia Zauskova, Robert Cep, Zdenka Rysava, Vitor Luiz Sordi   +5 more
doaj   +1 more source