BUSCADOR RECOLECTA

This dataset in an Excel file presents our data-base on world trade from 1800 to 1938. We have collected or estimated series of imports and exports, at current and constant (1913) prices and at current and at constant (1913) borders, for 149 polities. After a short review of the available series, we describe the methods for the construction of the data-base. We then deal with the criteria for the inclusion of polities, the representativeness of our series, the main types of sources, the procedures of deflation and, when necessary, of adjustments to 1913 borders. We discuss the details of the estimation of our polity series in Appendix B. Following Feinstein and Thomas (2001), we assess the reliability of our polity estimates. In the last two sections we present our trade series at current and 1913 borders and compare them with other available series. This dataset is related to the working paper "World trade, 1800-1938 : a new data-set" by Giovanni Federico and Antonio Tena Junguito, available on:http://hdl.handle.net/10016/22222.

El objetivo de este informe es establecer un listado de las revistas más valoradas en los diferentes sistemas de evaluación de calidad, nacionales e internacionales. Se trata de comparar los grupos de revistas que obtienen las máximas puntuaciones en cada uno de ellos para establecer los títulos coincidentes. Aunque el resultado puede dejar fuera revistas importantes consideradas individualmente, el consenso refuerza la valoración positiva del grupo resultante. Este sistema entraña no obstante algunas dificultades, por lo que hay que tomarlo sólo como un análisis aproximativo que puede ayudar al investigador tanto a la hora de publicar como en el momento de la valoración en los diferentes procesos oficiales de acreditación y evaluación.

During the second German Mission of Spacelab (1993, Spacelab D-2) an experiment on the mechanical stability of liquid columns was performed. A liquid column is a liquid mass held between to solid (circular) supports. A 30 mm in diameter and 90 mm long liquid drop was stablished in the Advanced Fluid Physics Module (AFPM) and was subjected to different mechanical stimuli (rotation of the supports, oscillation of one of the supports, change in volume and in length) to check whether the resulting drop was stable or not. Results were obtained in terms of images and recorded in a video sequence. Telemetry of the different stimuli and parameter values was also recorded. Objetive: The aim of this experiment was to measure the outer shape deformation of long liquid bridges near their stability limit under microgravity, caused by g-jitters and by some controlled mechanical disturbances (change of geometry, change of volume, rotation and vibration). The liquid used was a silicone-oil 10 times more viscous than water (5 times for the last run). The working length of the liquid column was 85 mm. The two solid supports are made of aluminium, of 30 mm in diameter, with a sharp cutback (30 deg. edge) to prevent liquid spreading over the edges. This choice of geometry allows a direct comparison with other TEXUS experiments where two discs of 30 mm in diameter and 86 mm apart were used to hold a cylindrical liquid column (35 mm discs were used in SL-D1 and 40 mm discs on SL-1). A top priority was to verify the results of a previous experiment performed on SL-D1, and because an equivalent Bond number Bo=0.007 was deduced from this experiment and there was no reason to expect a different behaviour, it was planned, in a second run to make use of unequal discs of 30 mm and 28 mm in a second run to precisely counterbalance the expected deformation and better quantify this effect. Procedures: The actual procedures executed were: -- Run 1: background sensing, disc oscillation at 0.40 Hz, 0.41 Hz, 0.42 Hz and again 0.42 Hz. -- Run 2: background sensing and disc separation until breakage of the column. -- Run 3: background sensing. Results: An example of free oscillations of a liquid column (diameter 30 mm, length 85 mm, volume 60 cc), due to g-jitter, is shown in Video1, recorded during the background sensing phase of Run 2. Video2 shows the breakage of the same column caused by disc separation at constant volume. This experiment enabled to accurately measure the response of the 85 mm-long cylindrical liquid column to a forced axial vibration of one of the supporting discs, and found that it is in very good agreement with theory, and complements other measurements performed in the same flight but with shorter columns by D. Langbein. An achievement is the high accuracy reached in automatic image analysis, of the order of 30 microns in object size (0.1 pixels in the 512*512 image), which represents a great improvement in comparison to the manually digitised hard-prints of previous flights. The more puzzling question left after the experiment is the lack of reproducibility of the steady averaged deformation measurement, perhaps because it is not a characteristic of the configuration and may be dependent on details of hardware (e.g. materials used, rounding of wetted corners) that escape control of the experimenter and are different for each campaign. As usual, more experiments are needed to elucidate the unexpected results of this one, but a clear progress in the overall experiment planning is evident.

Transient Stability Constrained Optimal Power Flow (TSCOPF) is a nonlinear optimization problem used to perform economic dispatches while ensuring transient stability. This paper proposes a multi-contingency TSCOPF model that retains the dynamics of all generators and includes a transient synchronous generator dq-axis model. Program write_tscopf.py automatically reads the system data from standard PSSE raw files, builds the TSCOPF model tscopf.gms on high-level modelling system GAMS and solves it using a non-heuristic Interior Point algorithm. This approach facilitates the application of the model to a variety of systems and scenarios. Data for the New England 39 Bus System and the IEEE 118 Bus system are included.

This dataset in an Excel file compares the wave of globalization before the outbreak of the Great Recession in 2007 with its alleged historical antecedent before the outbreak of World War One. We describe trends in trade and openness, estimate the gains from trade and investigate the proximate causes of the growth of openness. We argue that the conventional wisdom has to be revised. The first wave of globalization started around 1820 and culminated around 1870. In the next century, trade continued to grow, with the exception of the Great Depression, but openness and gains fluctuated widely. Growth resumed in the early 1970s. By 2007, the world was more open than a century earlier and its inhabitants gained from trade substantially more than their ancestors did. The current wave of globalization, in spite of some similarities with previous trends, has no historical antecedents. This dataset is related to the working paper"A tale of two globalizations : gains for trade and openness 1800-2010"by Giovanni Federico and Antonio Tena Junguito, available on (2016-02)