Results 31 to 40 of about 63,908 (210)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

Advanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline, Matthew Santer, Robert Hewson   +2 more
wiley   +1 more source

Peasant coffee in the Los Tuxtlas Biosphere Reserve, Mexico: A critical evaluation of sustainable intensification and market integration potential

Elementa: Science of the Anthropocene, 2016
Production of low-input, shaded coffee in the Los Tuxtlas UNESCO Biosphere Reserve (LTBR), Veracruz, Mexico, an economically marginalized but ecologically rich region, was strongly affected by the collapse in international prices and the reconfiguration ...
Anne Cristina de la Vega-Leinert, Ludger Brenner, Susanne Stoll-Kleemann   +2 more
doaj   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Radiation Exposure to Critical Organs in Panoramic Dental Examination

Acta Medica Iranica, 2012
Nowadays, radiography is a necessary procedure in diagnosis and treatment of patients with dental problems. According to the ALARA (as low as reasonably achievable) principle, dentists must take radiographs of sufficient quality at the lowest possible ...
Mohammad Taghi Bahreyni Toossi, Fateme Akbari, Shahram Bayani Roodi   +2 more
doaj   +2 more sources

PANCASILA DI WILAYAH SYARIAT ISLAM: KAJIAN PEMAHAMAN NILAI-NILAI PANCASILA DAN LANDASAN SIKAP TOLERANSI MASYARAKAT PEDESAAN DI ACEH BARAT

Jurnal Sosiologi Pendidikan Humanis, 2019
Recently, many anti-pancasila cases have appeared in the mass media, both in print and in electronic form. The place is not only the village community, but also the city people who actually have the character of a plural society, are aware of the ...
Triyanto Triyanto, Yeni Sri Lestari
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Application of “high-fidelity and high-resolution” processing technology in thin reservoir identification: A case study of the deep Permian Maokou Formation in Penglai area, central Sichuan [PDF]

Youqicang pingjia yu kaifa
The deep Permian Maokou Formation in the Penglai area, central Sichuan, is located in the Sichuan Basin. It is a sedimentary formation primarily composed of carbonate rocks, with dolomite being the main lithology.
PENG HAOTIAN, HE QINGLIN, CHEN KANG, ZENG MING, HE ZONGQIANG, TU ZHIHUI, KONG LINGXIA, QU BOZHANG   +7 more
doaj   +2 more sources

Enforcement of spatial planning laws in controlling spatial use permits in Yogyakarta

Jurnal Civics: Media Kajian Kewarganegaraan
Space is an area that includes land space, sea space and air space, including space within the earth as a unified territory, where humans and other creatures live, carry out activities and maintain their survival.
Puji Wulandari Kuncorowati, I Gusti Ayu Ketut Rachmi Handayani, Rahayu Subekti   +2 more
doaj   +1 more source