Search results for "raft"
showing 10 items of 1545 documents
Gender-neutral Language in EU Secondary Legislation: The Case of the English Language
2023
English does not have a grammatical gender, thus having an “intrinsic predisposition towards gender-neutral forms” (Poddighe 2020, 3). Most personal nouns do not indicate a specific gender, as in the case of person or engineer. However, there are also personal nouns with lexical gender, such as king or queen (Hellinger 2001). As a result, in English there is a risk of creating sentences that are not gender-neutral. Within the EU, the promotion of the use of a more inclusive language represents an important objective. For this reason, in recent years, various documents containing guidelines on gender-neutral language have been elaborated to encourage members of the EU institutions to adopt a…
Abdominal Compartment Syndrome: diagnostic evaluation and possible treatment
2020
BACKGROUND: Abdominal compartment syndrome (ACS) is a clinical condition caused by an increase in intra-abdominal pressure. The incidence is variable, based on the type of patients taken into consideration, increasing exponentially in critical conditions, such as traumatized, burned patients in shock. The syndrome can also follow surgical procedures like transplantation of abdominal organs, for example configuring rare pictures such as RACS (post-transplant kidney syndrome). In most cases the symptoms are non-specific and varied according to the different etiology of the ACS, therefore the diagnosis may not be immediate. AIM: The aim of this work is to evaluate the best therapeutic approach…
The impact of corporate characteristics on the financial decisions of companies: Evidence on funding decisions by Italian SMEs
2015
Small and medium enterprises (SMEs) represent a large percentage of the corporate tissue of developed countries, but they do not have adequate attention. In fact, various researchers have focused their studies on larger and well-known companies. This paper aims to investigate the impact of corporate characteristic on the financial choices of SMEs, with a specific focus on agro-food micro companies. Access to finance is vital in business start-up, development and growth for SMEs, all with very different needs and facing different challenges in terms of finance compared to large companies. The lack of equity invested in small enterprises makes them more dependent on other external sources (e.…
Latvijas alus tirgus analīze un SIA “Jaunpils alus” konkurētspējas izvērtējums
2022
Bakalaura darba mērķis ir izpētīt alus tirgus darbību ietekmējošos faktorus un novērtēt tā attīstību Latvijā, kā arī balstoties uz teorētiskajām un praktiskām atziņām izvērtēt SIA „Jaunpils Alus” konkurētspēju un izstrādāt priekšlikumus “Jaunpils Alus” darbības uzlabošanai. Bakalaura darbā veiktās analīzes rezultātā iespējams izvērtēt gan teorētiski, gan praktiski, kā darbojas alus tirgus Latvijā, kā arī iepazīties ar faktoriem, kas jāņem vērā vietējiem alus ražotājiem, lai varētu saglabāt savu konkurētspēju un uzlabot finanšu rādītājus. Atslēgas vārdi: alus tirgus, Jaunpils alus, konkurētspēja.
Comparison between 3-ph and 6-ph PMSM drives for the electric propulsion of unmanned aerial vehicles
2021
The full electric aircraft concept requires accurate design and suitable choice and integration of all the used components. Obviously, the electric propulsion drive is one of the most important on-board equipment. Both power converters and electric motors must have low weight, suitable overload capacity and high reliability. In this paper, two possible solutions of electric propulsion motor for unmanned aerial vehicle are investigated. Sizes, weight and some features of a three-phase PMSM motor are compared to those of a six-phase motor obtained by an appropriate rewinding of the armature, with fixed stator and rotor magnetic circuits. The losses obtained from the numerical analyzes are com…
The Community Response to Aircraft Noise Around Six Spanish Airports
1993
Abstract The community response to aircraft noise has been studied through a social survey. A total of 1800 persons living in the vicinity of six major Spanish airports have been interviewed at their homes concerning the environmental quality of the area, dissatisfaction with road traffic noise and aircraft noise, activities interfered with by noise, most disturbing aircraft types, and subjective evaluation of airport impact. All the responses obtained in this survey have been compared with aircraft noise levels corresponding to the residence locations of the people interviewed (values of NEF levels were calculated with the INM model). The results obtained in this work allow one to evaluate…
A study of noise transmission through cylindrical shell using modal truncation approach
2011
International audience; The study of the vibroacoustic behaviour of cylindrical structure like aircraft fuselage requires the establishment of very large models, and the numerical results which can be obtained are often difficult to interpret. On the other hand, the study of simple structures such as cylindrical shells is useful to validate the criteria and tools that can be used to simplify the models of complex structures. The presented study concerns the sound transmission through a cylindrical shell coupled to a cavity and subjected to an incident acoustic wave. Noise reduction is obtained and validated by a numerical method which uses structural and acoustical modes. A criterion for se…
A preliminary method for the numerical prediction of the behavior of air bubbles in the design of Air Cavity Ships
2016
Air-cavity ships (ACS) are advanced marine vehicles that use air injection under hull to improve the vessel’s hydrodynamic characteristics. Although the concept of drag reduction by supplying gas under the ship’s bottom was proposed in the 19th century by Froude and Laval, at this time there are not many systematic studies on this subject. This paper is a preliminary work with the purpose of being a basic tool for the design of the ACS with computational fluid dynamic methods. The study aims to conduct a series of computational tests to compare the numerical models of bubble with experimental data. The first step of this study was to investigate the behavior of free bubble in water, conside…
The potential of rotorcraft for intercity passenger transport
2007
Abstract There are many high-speed rail projects in Europe at different stages of development. They are supported on environmental grounds and as a means of reducing congestion on other modes, including aviation. High-speed rail, however requires major investment costs, takes a long time to come online, and involves considerable financial risks. A potential alternative that overcomes some of these problems makes use of rotorcrafts. This paper assesses the potentiality of civil rotorcrafts as part of the air transport system. Discrete mode choice models are used to forecast traveller choice behaviour when the rotorcraft is introduced and financial evaluations performed looking at the operati…
The Sequential Switching Shunt Maximum Power Regulator and its Application in the Electric Propulsion System of a Spacecraft
2007
This paper describes a baseline solution of a Power Conditioning and Distribution Unit (PCDU) for Electrical Propulsion (EP) systems. The solution adopted uses two high efficiency, low-mass power regulators; a solar array regulator (SAR) based on the classical Sequential Switching Shunt Regulator with Maximum Power Point Tracking (MPPT) capability followed by a step-up converter to achieve the desired regulated bus voltage. This paper focuses on the first part of the PCDU, the Sequential Switching Shunt Maximum Power Regulator (S3MPR). This electrical architecture has been adapted and recently proposed for the Electric Propulsion power system of the European and Japanese Mercury Mission (Be…