Results 71 to 80 of about 103,977 (217)
Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
wiley +1 more source
Agriculture, 2020 Elemental analysis using energy-dispersive X-ray fluorescence on extra virgin olive oils and seed oils revealed the presence of two major concentration related clusters, one containing elements of pedological origin, whilst the other consisted of heavy ...
Frederick Lia +2 more
doaj +1 more source
On the Kinetic Energy and Radiative Efficiency of Gamma-Ray Bursts [PDF]
, 2004 Using measured X-ray luminosities to 17 Gamma-Ray Bursts (GRBs) during the afterglow phase and accounting for radiative losses, we calculate the kinetic energy of these bursts and investigate its relation to other GRB properties. We then use the observed
Lloyd-Ronning, Nicole M., Zhang, Bing
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Durable Thin‐Film Porous Transport Electrodes for High Current Density PEM Water Electrolysis
Advanced Science, EarlyView.Water electrolysis using porous transport electrodes with sputter‐deposited, ionomer‐free thin films of rutile IrO2 catalyst suppresses Ir dissolution by >10x over other forms of IrOx. The rutile IrO2 catalyst prepared by this readily scalable electrode synthesis method provides stable cell operation at 3 A cm−2 while using low Ir loading (0.4 mg Ir cm−
James L. Young +18 more
wiley +1 more source
Elemental, isotopic, and geochronological variability in Mogollon-Datil volcanic province archaeological obsidian, southwestern USA: Solving issues of intersource discrimination [PDF]
, 2017 Solving issues of intersource discrimination in archaeological obsidian is a recurring problem in geoarchaeological investigation, particularly since the number of known sources of archaeological obsidian worldwide has grown nearly exponentially in the ...
Morgan, L, Pyle, D, Shackley, MS
core +1 more source
Advanced Science, EarlyView.Tracing the evolution from structural regulation to multifunctional integration, this paper systematically analyzes modification strategies for carbon‐based electrodes. It evaluates how element doping, surface functionalization, and composite material design affect the electrode performance, and offers perspectives on future applications and challenges
Yunlei Wang +4 more
wiley +1 more source
Svetilka iz zgodnjeeneolitske naselbine Zgornje Radvanje v Mariboru
Arheološki Vestnik, 2015 V prispevku je predstavljen keramični predmet ovalne oblike iz hiše z območja zgodnjeeneolitske naselbine Zgornje Radvanje (Podravje). Hiša pripada delu naselbine, ki je bil glede na datiranje z radioaktivnim ogljikom (z metodo 14C AMS, akceleratorsko ...
Bine Kramberger
doaj
شناسایی رنگدانههای سبز و قرمز دیوارنگارههای دوره زندیه در شیراز با روش دستگاهی [PDF]
علوم و فناوری رنگ, 2020 رنگدانههای به کار رفته در دیوارنگارههای دوره زندیه (حدود 1193-1175 ه.ق) کمتر مورد بررسی فنشناسی قرارگرفتهاند. در این تحقیق دو رنگدانه قرمز و سبز دیوارنگارههای سه بنای زندیه کاخ کریم خان، عمارت دیوانخانه و عمارت هفتتنان با روشهای دستگاهی XRF ،XRD،
زهرا نیکویی +1 more
doaj
Investigation of gold nanorods as a sensing material in plasmonic sensor for triclopyr butotyl detection [PDF]
, 2020 Gold nanorods (GNRs) have a unique optical property of metal nanoparticles (MNPs) due to the localised surface plasmon resonance (LSPR) effect, which depends on the size, shape and dielectric property of the surrounding medium.
Md Shah, Nur Zehan An’nisa
core
Remote multispectral imaging with PRISMS and XRF analysis of Tang Tomb paintings [PDF]
, 2011 PRISMS (Portable Remote Imaging System for Multispectral Scanning) is a multispectral/hyperspectral imaging system designed for flexible in situ imaging of wall paintings at high resolution (tens of microns) over a large range of distances (less than a ...
Lange, R, Liang, H, Zhang, Q
core +1 more source