R Research Papers

The song of air and water: Acoustic experiments with an Ecuadorian Whistle Bottle (c.900 BC–100 BC)

In Ecuador, bottles as containers for liquids appeared in the Late Formative period at the end of the Machalilla culture (1600 BC to 800 BC). Whistle bottles were created and perfected during the Chorrera culture (900 BC to 100 BC), and fin...

Weirs in the Waterworks of the Tsarev Settlement

The location and design of weirs as part of water supply system on the Tsarev settlement and its neighborhood are considered in the article. The descriptions of the 19th – early 20th cc. and archaeological data made it possible to establish...

Crisis del sistema humanitario en Chile. Refugiadas colombianas deslegitimadas en la frontera norte

El año 2007 se instala el programa de Refugio en Iquique, debido al aumento de solicitudes en la región de Tarapacá. En 2010 se dicta la Ley de Refugio en Chile, no obstante, a partir de entonces, tanto las solicitudes de asilo como las con...

The Sacred Landscape of Central Asia in the Achaemenid Period

The sacred landscape of Central Asia consisted of various religions and ritual practices that grew out of local traditions. The latest archaeological excavations of the Iron Age cultic structures in Central Asia reveal a diverse array of ri...

Варварські ливарники у Нижньому Побужжі в архаїчний час

У статті аналізується рівень розвитку бронзоливарного ремесла у Північному Причорномор’ї у VI-V ст. до н.е. Автор дійшов висновку, що всупереч традиційній думці про виняткову роль античних колоній в історії місцевого населення, кольорова ме...

Dans l’intimité du travail des archéologues

Between tradition and technological innovation: challenges to lime Heritage conservation

The aim is to discuss the relationship between traditional and scientific technological knowledge as innovative and fundamental to heritage conservation. It is argued that this innovation does not necessarily come from scientific knowledge,...

Bronze decoration for chariots in Northern Italy

Si propone un censimento delle attestazioni di decorazione in bronzo per carri in Italia settentrionale, limitando la ricerca agli elementi figurati. L’indagine, per quanto presumibilmente non esaustiva, ha condotto a un considerevole aumen...

Una nueva forma en la cerámica ibérica de San Miguel de Liria (Valencia)

En la campaña de excavaciones llevadas a cabo en 1941, en el ya célebre poblado ibérico de San Miguel de Liria (Valencia), la Edeta de los textos clásicos, la suerte nos deparó, entre los abundantísimos materiales cerámicos, en el departame...

Evolución de la distribución de las reservas de hidrocarburos de las Provincias Petroleras Mexicanas

En el presente trabajo se presenta, a través de diferentes mapas, la información concerniente a 1,110 campos de petróleo y gas que se ha podido recopilar integrando diferentes bases de datos institucionales. La información recopilada contie...

Antropología narrativa y educación

RESUMEN: Tomando como telón de fondo la noción de «excentricidad» de Helmuth Plessner se presentan en este artículo las líneas generales de una antropología narrativa. Según ésta, los seres humanos, además de naturaleza biológica y cultural...

Deep Mapping and Spatial Anthropology

This paper provides an introduction to the Humanities Special Issue on “Deep Mapping”. It sets out the rationale for the collection and explores the broad-ranging nature of perspectives and practices that fall within the “undisciplined” int...

Compression and Tensile Testing of L-PBF Ti-6Al-4V Lattice Structures with Biomimetic Porosities and Strut Geometries for Orthopedic Implants

In an effort to contribute to the ongoing development of ASTM standards for additively manufactured metal lattice specimens, particularly within the field of medicine, the compressive and tensile mechanical properties of biomimetic lattice ...

Sensitivity Analysis and Uncertainty Quantification of Nanoparticle Deposition from Tongue Morphological Variations

The human tongue has highly variable morphology. Its role in regulating respiratory flows and deposition of inhaled aerosols remains unclear. The objective of this study was to quantify the uncertainty of nanoparticle deposition from the va...

Numerical Simulation on Rigid Foreign Object Exclusion in the Turboprop Engine Intake System With a Bypass Duct

By considering the exclusion characteristics of foreign objects in a new intake system with a bypass duct for turboprop engines, two kinds of common rigid foreign objects, the grains, and metal pieces, are modeled based on airworthiness sta...

An Adaptive JPEG Double Compression Steganographic Scheme Based on Irregular DCT Coefficients Distribution

Steganography is to embed secret information into digital media and minimize the distortion caused by data embedding. The JPEG is a widely used image compression format, and many JPEG images transmitted on the network are double compressed....

The Numerical Solution of Fractional Parabolic Partial Integro-Differential Eequations by Gaussian and Inverse Multiquadric Radial Basis Functions

Introduction Many mathematical formulations of physical phenomena contain integro-differential equations. These equations arise in fluid dynamics, biological models, chemical kinetics, ecology, control theory of financial mathematics, aeros...

Ground calibration tests of the laser altimeter (LIDAR) for MMX mission

Abstract The spacecraft for the Japanese Martian Moon eXploration mission is equipped with a LIDAR laser altimeter. The slant range continuously measured by the LIDAR is used for the correction of the local topography and the orbit and atti...

Research Progresses of Flash Evaporation in Aerospace Applications

Liquid is overheated and evaporated quickly when it enters into the environment with lower saturation pressure than that corresponding to its initial temperature. This phenomenon is known as the flash evaporation. A natural low-pressure env...

Designing wind turbines for profitability in the day-ahead market

Traditionally, wind turbine and wind farm designs have been optimized to minimize the cost of energy. Such a design would make sense when bidding in price-based auctions. However, in a future with a high share of renewables and zero subsidi...