Results 21 to 30 of about 17,373 (256)

Vertical Distribution of Mobile Trace Elements in Peat Deposits of the Lviv Region and Their Relationships with Physico-Chemical Properties

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Problem statement: Peatlands act as natural geochemical barriers that accumulate various chemical elements, including heavy metals. The qualitative characteristics of peat and its potential applications directly depend on the spectrum and concentrations ...
Myroslava Yakovenko, Yurii Khokha, Myroslav Pavlyuk   +2 more
doaj   +1 more source

Evaluación de modelos de combustible forestal del bosque seco tropical del parque natural regional Los Besotes - Valledupar, Cesar

Revista Politécnica, 2023
El desarrollo de modelos matemáticos han ayudado a explicar comportamiento sociales, económicos y ambientales, para este caso, la construcción de un modelo de combustible de la vegetación del Parque Natural Regional Los Besotes se convierte en ...
Carlos Daniel Castillo-de-Luque, Arnaldo Luis Calderón-Torres, Paul Klement Arias-Ruidias, Pedro Juan Torres-Flores, Karina Paola Torres-Cervera   +4 more
doaj   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

The Olenivka fault and its influence on the structure of the flysch cover

Мінеральні ресурси України
The article is devoted to an attempt to connect the surface structure of the considered area with the deep one. In addition to the Olenivka deep fault, the behavior of the Turka-Mizhhirya fault and the Svalyava-Latorytsa zone of discontinuous ...
V. Ye. Shlapinskyi, Yа. Н. Lazaruk, I. Z. Mykhailovskyi, O. Z. Savchak, M. M. Ternavskyi, V. I. Ruzhevych   +5 more
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Internal combustion [PDF]

Canadian Anaesthetists’ Society Journal, 1963
The inflammability of intestinal gases was demonstrated by Vulparious in the seventeenth century. The main gases incriminated are methane and hydrogen and their production is increased by a leguminous diet or by excessive fermentation in cases of pyloric stenosis with gross gastric stasis.
openaire   +2 more sources

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Amenazas tecnológicas en el cantón La Unión, Cartago, Costa Rica

Tecnología en Marcha, 2022
Este artículo describe la distribución de las amenazas tecnológicas en el cantón La Unión de Cartago y muestra los radios de máximo alcance por eventuales explosiones en gasolineras.
Jorge Eduardo Rodríguez-Campos, Mario Fernández-Arce   +1 more
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source