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  • Voice of airline passenger: a text mining approach to understand customer satisfaction 
    Sezgen, Eren; Mason, Keith J.; Mayer, Robert (Elsevier, 2019-04-13)
    This paper investigates the key drivers of customer satisfaction and dissatisfaction towards both, full-service and low-cost carriers and also towards, economy and premium cabins. Latent Semantic Analysis - a text mining ...
  • The voice of struggle : an interpretive study of factors influencing success or failure of microenterprises in Brazil's urban favelas 
    Siegmund, T (Cranfield University, 2001-07)
    I Third World countries and in particular in Latin America the high birth rate and the forced rural exodus of farm hands has caused a extremely high unemployment rate among the migrants who have flocked into the peripheries ...
  • Void fraction development in gas-liquid flow after a U-bend in a vertically upwards serpentine-configuration large-diameter pipe 
    Almabrok, Almabrok Abushanaf; Aliyu, Aliyu M.; Baba, Yahaya D.; Lao, Liyun; Yeung, Hoi (Springer, 2017-08-01)
    We investigate the effect of a return U-bend on flow behaviour in the vertical upward section of a large-diameter pipe. A wire mesh sensor was employed to study the void fraction distributions at axial distances of 5, 28 ...
  • Volatile diagnostic techniques for ventilator associated pneumonia 
    Humphreys, Martyn Lee (Cranfield University, 2010-02)
    Ventilator associated pneumonia (VAP) is a significant challenge for the Intensive Care doctors worldwide. It is both difficult to diagnose accurately and quickly and to treat effectively once the diagnosis has been ...
  • Volatile organic compounds sensing using optical fibre long period grating with mesoporous nano-scale coating 
    Hromadka, J.; Korposh, Sergiy; Partridge, Matthew; James, Stephen W.; Davis, Frank; Crump, Derrick; Tatam, Ralph P. (MDPI, 2017-02-08)
    A long period grating (LPG) modified with a mesoporous film infused with a calixarene as a functional compound was employed for the detection of individual volatile organic compounds (VOCs) and their mixtures. The mesoporous ...
  • Voltage synchronisation for hybrid-electric aircraft propulsion systems 
    Ibrahim, Kingsley; Sampath, Suresh; Nalianda, Devaiah (Cambridge University Press, 2021-07-22)
    Increasing demand for commercial air travel is projected to have additional environmental impact through increased emissions from fuel burn. This has necessitated the improvement of aircraft propulsion technologies and ...
  • Volumetric interferometry for sparse 3D synthetic aperture radar with bistatic geometries 
    Welsh, Richard; Andre, Daniel; Finnis, Mark (Institution of Engineering and Technology (IET), 2023-06-25)
    Synthetic Aperture Radar (SAR) renderings in 3D provide additional target information when compared to 2D by separating out features overlaid in height. However, the required 2D SAR aperture, when Nyquist sampled, necessitates ...
  • Volumetric SAR near-field upsampling and basebanding 
    Elgy, James; Andre, Daniel; Finnis, Mark V. (IET, 2020-03-03)
    Highly sampled imagery offers many benefits to the radar practitioner, ranging from easier image coregistration to simple visual appeal. However, it is often overlooked due to the computational burden forming such an ...
  • Voluntarism as an organizing principle for 'responsible organizations' 
    Clarke, Martin; Butcher, David (Emerald Group Publishing Limited, 2006-01-01)
    The aim of this paper is to promote the concept of organizational voluntarism, borrowed from political philosophy and to stimulate feedback and debate as to its efficacy in furthering the discourse on corporate responsibility.
  • Voluntary sector HRM: Examining the influence of Government 
    Kelliher, Clare; Parry, Emma (Emerald Group Publishing Limited, 2011-10-01)
    Purpose - This paper seeks to examine the practice of human resource management (HRM) in the UK voluntary sector. In recent years many voluntary sector organisations have experienced a changing context, where they have ...
  • Voluntary sector responses to increased resourcing challenges 
    Parry, Emma; Kelliher, Clare (Emerald Group Publishing Limited, 2009-01-01)
    Purpose: Drug treatment services in the UK have recently undergone significant expansion, alongside the introduction of a set of quality standards which included the management of people. Consequently, voluntary organisations ...
  • Vortex and core detection using computer vision and machine learning methods 
    Xu, Zhenguo; Maria, Ayush; Chelli, Kahina; De Premare, Thibaut Dumouchel; Bilbao, Xabadin; Petit, Christopher; Zoumboulis-Airey, Robert; Moulitsas, Irene; Teschner, Tom; Asif, Seemal; Li, Jun (River Publishers, 2023-12-29)
    The identification of vortices and cores is crucial for understanding airflow motion in aerodynamics. Currently, numerous methods in Computer Vision and Machine Learning exist for detecting vortices and cores. This research ...
  • Vortex generator effect on mitigation of separation in transonic flow nozzle 
    Zare Shahneh, Amir (Institute of Research Engineers and Doctors, 2015-04-30)
    The effect of tetrahedral sub-boundary layer vortex generator on plummeting normal shock-induced turbulent boundary layer separation has been investigated in computational environment and the result is presented. A good ...
  • Vortex induced aerodynamic forces on a flat plate in ground proximity 
    Holt, Jennifer C.; Garry, Kevin P. (AIAA, 2016-12-31)
    Vehicle underbody longitudinal vortices can have a significant effect on the aerodynamic loads experienced by a body in close ground proximity. A series of wind tunnel tests at a nominal Reynolds number of 2.26 x 106 ,were ...
  • Vortex lattice CFD application and modeling validation for ground effect aircraft 
    Zammit, Karl; Smith, Howard; Lobo, Noel Sierra; Giannopoulos, Ioannis K. (WSEAS (World Scientific and Engineering Academy and Society), 2024-02-09)
    This paper explores the application of vortex lattice computational fluid dynamics method capability to model aircraft flight near to ground, utilizing the ground effect. Computational results were correlated with existing ...
  • Vortex tube performance data sheets 
    Westley, R. (College of Aeronautics, 1957-07)
    Experiments to determine the effect of various operating and design parameters on the performance of a vortex tube are described in College of Aeronautics Note No. 30. The present note gives additional performance data ...
  • Voyage analysis of a marine gas turbine engine installed to power and propel an ocean-going cruise ship 
    Bonet, Mathias; Pilidis, Pericles; Doulgeris, Georgios (World Academy of Science, Engineering and Technology, 2019-02-02)
    A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an airbreathing machine, changes in the density ...
  • Vulnerability analysis of GPS receiver software 
    Gonzalez, G. Mori; Petrunin, Ivan; Zbikowski, Rafal; Voutsis, K.; Verdeguer Moreno, Ricardo (IEEE, 2019-07-04)
    Satellite navigation systems such as the Global Positioning System (GPS)makes it possible for users to find their relative or absolute position. Thanks to its mobility and reliability, the GPS is used in many civil and ...
  • The vulnerability of laser warning systems against guided weapons based on low power lasers 
    Al-Jaberi, Mubarak (Cranfield UniversityDepartment of Aerospace, Power & Sensors (DAPS), 2006-04-28)
    Laser assisted weapons, such as laser guided bombs, laser guided missiles and laser beam-riding missiles pose a significant threat to military assets in the modern battlefield. Laser beam-riding missiles are particularly ...
  • Vulnerability of subsoils in Europe to compaction: a preliminary analysis. 
    Jones, Robert J. A.; Spoor, G.; Thomasson, A. J. (Elsevier, 2003-10)
    Identifying the vulnerability of subsoils to compaction damage is an increasingly important issue both in the planning and execution of farming operations and in planning environmental protection measures. Ideally, subsoil ...