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Long-term instability in multiplanet exosystems is a crucial consideration when confirming putative candidates, analysing exoplanet populations, constraining the age of exosystems and identifying the sources of white dwarf pollution. Two planets that are Hill stable are separated by a wide-enough distance to ensure that they will never collide. However, Hill-stable planetary systems may eventually

Let ζ(t), η(t) be continuously differentiable Gaussian processes with mean zero, unit variance, and common covariance function r(t), and such that ζ(t) and η(t) are independent for all t, and consider the movements of a particle with time-varying coordinates (ζ(t), η(t)). The time and location of the exists of the particle across a circle with radius u defines a point process in R3 with its points

We investigate the effects of fracture- and inclusion-induced seismic anisotropy in a carbonate reservoir rock and the resulting influence this anisotropy may have on surface seismic data. Whole-core velocity measurements made on a carbonate sample from the Gulf of Mexico show evidence of elastic anisotropy. Constraints on the style of this anisotropy are obtained from comparisons with effective m

Research in vehicle-to-vehicle communication and the Vehicular Ad Hoc Network (VANET) are two major fields of growing interest. The advent and recent development of these concepts foster evolution of the new paradigm of the transportation system, widely known as Intelligent Transport System (ITS). Among the numerous challenges in adopting VANET for ITS, modeling the radio channel is a vital one, b

Objective: Previous studies have revealed positive effects on subjective alertness, performance and general sleep patterns, with exposure to light conditions adapted to time of day according to the circadian system. This study aimed to investigate the impact of a dynamic LED light intervention on sleep quality of adolescent students. Methodology: Twenty eight seventh-grade subjects were recruited

The purpose of this report was to examine if there was an easy way for the rescue services to get knowledge about the possible consequences regarding a fire in an area of densely-built wooden buildings. By following the method proposed in this report rescue services can get an understanding if their capacity to combat a fire in this type of area is sufficient. The method is originated in two pathw

When carton packages are formed in a filling machine, there have to be a certain tension in the material package to keep it stretched, however not so much that the material is damaged. In the Tetra Pak A1 filling machine this is achieved through a \emph{web tension-mechanism} consisting of a number of rollers and a pneumatic cylinder. The aim of the master thesis is to get a simulation model for

The thesis work was performed at Tetra Pak where a temperature control system for an external cleaning unit was designed. The external cleaning unit is responsible for the heating and supply of cleaning fluids for an aseptic packaging and filling machine. This thesis presents a least squares estimated model predictive controller that uses an ILC inspired algorithm to predict the process behavior.

A proactive approach towards law is becoming more common in competitive industries. While literature urges a causal relationship between a proactive approach and business success, it does not mention how future managers should adopt such an approach. In cases of environmental legislative restrictions, which are often disruptive and unpredictable for companies, it is difficult to anticipate and tur

The purpose of this paper is to determine to what degree there are textual and conceptual similarities between the British National Party’s (BNP) and UK Independence Party’s (UKIP) construction of in-groups and out-groups. The focus is on the two discursive strategies nomination (attribution of word form) and predication (attribution of quality). For the present study I adopt the Discourse-Histori

This Bachelor thesis is assigned to interpret and visualize the degree of contamination and degradation of chlorinated aliphatic hydrocarbons (CAH) in relationship with groundwater chemistry and signals from geophysical surveys. The relationships between pollutant, chemistry data and geophysical surveys were tested through linear regression. By using the Swedish National Food Agency limits for dri

Electromagnetic induction measurements (EM) were taken in a saline gypsiferous soil of the Saharan-climate Fatnassa oasis (Tunisia) to predict the electrical conductivity of saturated soil extract (ECe) and shallow groundwater properties (depth, Dgw, and electrical conductivity, ECgw) using various models. The soil profile was sampled at 0.2 m depth intervals to 1.2 m for physical and chemical ana

The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| < 0.8 and transverse momentum 1 < p(T)< 10 GeV/c, in pp collisions at root s = 2.76 TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding track

During flow testing of a deep, 1927-m, gravel packed screen completed well, it became apparent that well development was needed to increase productivity. A hydrojetting system using coiled tubing in combination with simultaneous pumping was developed and tested and found to be successful. To verify whether the jetting improved the well, the results of a pumping test conducted before and after the

Abstract Value at Risk (VaR) is a simple, transparent and consistent measure that summarizes all sources of downside risk. VaR has gained acceptance in the banking industry in accordance to Basel II rules which require banks to use VaR in calculations of market risk. VaR as a risk measure is not as widely accepted in the investment industry. This thesis embraces five different VaR models to 20 equ

The purpose of this study is to examine skilled social workers with long time experience of breakdowns at family home placements frm 1970 and their apprehensions about it. My choice of subject concerns my own experience of breakdowns at a fosterhome in the beginning of 1970. In my investigation the research shows a lot of different factors that either increases or decreases the risk of breakdowns

Change Impact Analysis (CIA) during software evolution of safety-critical systems is a labor-intensive task. Several authors have proposed tool support for CIA, but very few tools were evaluated in industry. We present a case study on ImpRec, a recommendation System for Software Engineering (RSSE), tailored for CIA at a process automation company. ImpRec builds on assisted tracing, using informati

Lactic acid bacteria (LAB) have long been used to produce safe and high quality products as they are potential producers of a wide range of antimicrobial compounds that exert either narrow or wide spectrum antimicrobial activity towards spoilage or disease-causing organisms. The present investigation aimed to study the antimicrobial effect of three LAB strains, viz., Lactobacillus plantarum (86),