Gas hydrates are a costly problem when they plug oil and gas pipelines. The best way to determine the HFT and pressure is to measure these conditions experimentally for every gas system. Since this is not practical in terms of time and money, correlations are the other alternative tools. There are a small number of correlations for specific gravity method to predict the hydrate formation. As th...

Gravity data gaps in mountainous areas are nowadays often filled in with the data from airborne gravity surveys. Because of the errors caused by the airborne gravimeter sensors, and because of rough flight conditions, such errors cannot be completely eliminated. The precision of the gravity disturbances generated by the airborne gravimetry is around 3-5 mgal. A major obstacle in using airborne ...

We present a genome assembly from an individual male Sarcophaga subvicina (the lesser worm flesh fly; Arthropoda; Insecta; Diptera; Sarcophagidae). The sequence is 71 megabases in span. Most of the (95.91%) scaffolded into six chromosomal pseudomolecules, with X sex chromosome assembled. mitochondrial has also been assembled and 16.7 kilobases length. Gene annota...

A fraction of the interstellar neutral atoms crosses the interface between the solar wind and the ionized component of the local interstellar medium, and enters the heliosphere. The number of penetrating atoms depends on both the interface structure and the strength of the atom-plasma interaction, i.e. on the atom type. In this paper we consider the penetration of the interstellar oxygen. Oxyge...

INTRODUCTION Fisheries biology was established as a discipline ofits own near the turn of the last century, when scientistS in Northern Europe and America began to ask . • I themselves seriously why fish stocks fl~ctuate and, more specifically, why exploited stocks become depleted. Was it tlie effect offishing or, as many argued, mainly the result of environmental fluctuations? . The Intemation...

inverse modeling is one of the most elegant geophysical tools for obtaining 2-d and 3-d images of geological structure. determination of the geometry of bedrock, by nonlinear inverse modeling of gravity data, is the aim of this paper. the algorithm uses a nonlinear iterative procedure for simulation of bedrock geometry. at the first step, the nonlinear problem changes to a linear problem by a p...

hydrothermal treatment of wood material products with many interesting properties such as enhanced dimensional stability, lower equilibrium moisture content and increased biological durability. the effects of hydrothermal treatment on dimensional stability, oven dry density and water absorption of beech wood (fagus orientalis) naturally grown, has been studied in present research that extremely...