Results 51 to 60 of about 58,109 (251)

Prehistoric mining and metallurgy in the Priorat and bordering areas (province of Tarragona). State of the issue [PDF]

open access: yes, 2018
En los últimos 15 años se han desarrollado diversos proyectos de investigación centrados en la minería y la metalurgia prehistóricas en el Priorat. Gracias a estos, el conocimiento sobre este tema se ha visto notablemente incrementado hasta el punto ...
Hunt Ortiz, Mark A., Soriano, Ignacio
core   +5 more sources

Conjunto de metales procedente del poblado de la Edad del Bronce de L’arbocer (Font de la Figuera, Valencia)

open access: yesTrabajos de Prehistoria, 2005
Presentamos un conjunto de piezas de metal, de cobre y bronce, halladas de manera casual en el poblado de la Edad del Bronce de L’Arbocer, en la Font de la Figuera, Valencia.
Pablo García Borja   +2 more
doaj   +1 more source

Facile In Situ Formation of Potassium Sodium Niobate (KNN) Using The Hexaniobate Polyoxometalate

open access: yesChemistry – 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

Mechanosensing Piezo channels in tissue homeostasis including their role in lungs

open access: yesPulmonary Circulation, Volume 8, Issue 2, Page 1-6, April-June 2018., 2018
Piezo channels are deemed to constitute one of the most important family of mechanosensing ion channels since their discovery in 2010. With recent advances in identifying their topological structure and the discovery of the agonist Yoda1 as well as the specific inhibitor GsMTx4, it is now possible to study the mechanisms by which Piezo channels are ...
Ming Zhong   +3 more
wiley   +1 more source

Las espadas en lengua de carpa - aspectos morfológicos, metalúrgicos y culturales

open access: yesTrabajos de Prehistoria, 2010
Se presentan los resultados de un análisis de la dispersión geográfica de los distintos subgrupos morfológicos de las espadas en lengua de carpa a nivel europeo, poniéndolas en relación con una marcada variabilidad en la composición metalúrgica de estas ...
Dirk Brandherm   +1 more
doaj   +1 more source

Ph.D. Publication Requirement and Its Effects on Research Productivity Trends in Kazakhstan

open access: yesHigher 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

A Comparative Analysis of 2‐(Thiocyanomethylthio)‐Benzothiazole Degradation Using Electro‐Fenton and Anodic Oxidation on a Boron‐Doped Diamond Electrode

open access: yesInternational Journal of Photoenergy, Volume 2018, Issue 1, 2018., 2018
2‐(Thiocyanomethylthio)‐benzothiazole (TCMTB) is used as fungicide in the paper, tannery, paint, and coatings industries, and its study is important as it is considered toxic to aquatic life. In this study, a comparison of direct anodic oxidation (AO) using a boron‐doped diamond electrode (BDD) and electro‐Fenton (EF) processes for TCMTB degradation in
Armando Vázquez   +6 more
wiley   +1 more source

La explotación tartésica de la casiterita entre los ríos Tajo y Guadiana: San Cristóbal de Logrosán (Cáceres)

open access: yesTrabajos 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

Evaluation of Strengthening Mechanisms in Novel Fully Ferritic Advanced High‐Strength Steels

open access: yessteel research international, Volume 95, Issue 1, January 2024.
The strengthening mechanisms of the ferritic Ti–Mo–V–Nb and Ti–Mo–V steels after the isothermal dwell at different temperatures (590, 630, and 680 °C) are evaluated. Results show that the estimated tensile strength of over 1000 MPa can be achieved in investigated steels, although the contribution of different strengthening mechanisms varies depending ...
Olli Nousiainen   +4 more
wiley   +1 more source

Effect of Nd3+ Ion Concentration on the Corrosion Resistance of API X70 Steel in Chloride‐Rich Environments

open access: yesAdvances in Materials Science and Engineering, Volume 2018, Issue 1, 2018., 2018
In this study, the effect of the addition of Nd3+ ions as a corrosion inhibitor of the API X70 steel in a medium rich in chlorides was evaluated. The performance of the Nd3+ ions was evaluated by means of electrochemical techniques such as potentiodynamic polarization curves, open circuit potential measurements, linear polarization resistance, and ...
D. M. Martinez de la Escalera   +6 more
wiley   +1 more source

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