Results 81 to 90 of about 67,320 (256)
La metalurgia inca: estudio a partir de las colecciones del Museo de América de Madrid
, 2017 La metalurgia en tiempo de los incas recoge la herencia tecnologica de mas de 2000 anos de trabajo del metal en la vasta region de los Andes Centrales. El cobre y sus aleaciones, la plata y el oro fueron metales ampliamente utilizados.
S. Rovira
semanticscholar +1 more source
steel research international, Volume 96, Issue 3, March 2025.A laboratory‐scale hot‐rolled Ti–Mo–V–Nb steel with 1 GPa tensile strength is produced, and its microstructure and tensile properties are characterized using advanced analysis techniques and tensile testing. A Gleeble 3800 thermomechanical simulator is used to determine a process window. Results show significant differences in mechanical properties and
Olli Nousiainen +4 more
wiley +1 more source
Trabajos de Prehistoria, 2013 El objetivo de este trabajo es ofrecer una síntesis de la investigación arqueológica y arqueominera realizada entre 1998 y 2000-2002 en el Cerro de San Cristóbal de Logrosán (Cáceres).
Alonso Rodríguez Díaz +5 more
doaj +1 more source
, 2017 Fil: Spina, Josefina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
J. Spina, M. Giovannetti, E. Ferraris
semanticscholar +1 more source
Facile In Situ Formation of Potassium Sodium Niobate (KNN) Using The Hexaniobate Polyoxometalate
Chemistry – A European Journal, Volume 31, Issue 12, February 25, 2025.Lead‐based piezoceramics are the dominant materials used in electronic devices, despite the known toxicity of lead. Developing safer piezoelectric materials has inspired the pursuit of lead‐free piezoceramics, however some challenges remain in accessing these materials reproducibly.
Mark A. Rambaran +3 more
wiley +1 more source
Trabajos de Prehistoria, 1995 La colonización fenicia durante los siglos VIII y VI a.C. se concibe como una forma de comercio a larga distancia y de intercambio desigual con ulteriores implicaciones en el cambio social -pero no cultural- de las comunidades campesinas de la Edad del ...
Carlos G. Wagner
doaj +1 more source
Experimental and numerical prediction of extrusion load at different lubricating conditions of aluminium 6063 alloy in backward cup extrusion [PDF]
, 2019 In the present research work using a backward cup extrusion (BCE) die profile, different lubricating conditions on aluminum alloy AA6063 have been experimentally and numerically investigated to predict the extrusion load.
Ikumapayi, O. M. +3 more
core +3 more sources
, 2018 The results of the scientific project developed in the Phoenician settlement of Cabezo Pequeno del Estano from 2014 onwards are offered in this paper. The main finding is a circular building with exceptional furniture and architectural features occupying
F. Martínez +2 more
semanticscholar +1 more source
Ph.D. Publication Requirement and Its Effects on Research Productivity Trends in Kazakhstan
Higher Education Quarterly, Volume 79, Issue 1, January 2025.ABSTRACT The growing pressure to ‘publish or perish’, experienced by academia around the world, has pushed an increasing number of individual graduate programmes and universities, as well as entire higher education systems, to introduce a publication requirement as a prerequisite for the conferral of doctoral degrees.
Aliya Kuzhabekova
wiley +1 more source
Trabajos de Prehistoria, 2013 El ajuar funerario de la necrópolis de Palhais (Primera Edad del Hierro) ofrece una oportunidad única para estudiar la introducción de la metalurgia orientalizante en el sur de Portugal.
Pedro Valério +4 more
doaj +1 more source