Static internal performance of ventral and rear nozzle concepts for short-takeoff and vertical-landing aircraft

The internal performance of two exhaust system concepts applicable to single-engine short-take-off and vertical-landing tactical fighter configurations was investigated. These concepts involved blocking (or partially blocking) tailpipe flow to the rear (cruise) nozzle and diverting it through an opening to a ventral nozzle exit for vertical thrust. A set of variable angle vanes at the ventral nozzle exit were used to vary ventral nozzle thrust angle between 45 and 110 deg relative to the positive axial force direction. In the vertical flight mode the rear nozzle (or tailpipe flow to it) was completely blocked. In the transition flight mode flow in the tailpipe was split between the rear and ventral nozzles and the flow was vectored at both exits for aircraft control purposes through this flight regime. In the cruise flight mode the ventral nozzle was sealed and all flow exited through the rear nozzle

Gifts - Mistake-Rights of the Doner, Donee and Their Successors in Interest to Relief

The comment will deal first with three topics, (1) donor\u27s rights against the donee or mistaken transferee, (2) donee\u27s rights against the donor, and (3) rights of an intended donee against the mistaken transferee. This will be followed by a discussion of the problem which arises when the relative rights of more than two parties are involved

Consumer-based brand equity measurement: lessons learned from an international study

Purpose – The paper examines the performance of Aaker’s dominant conceptualization of consumer-based brand equity (brand awareness, brand associations, perceived quality and brand loyalty) in a multi-national and multi sector European context and highlights important lessons vis-à-vis the measurement of brand assets across countries. Design/methodology/approach – Cross-category data was collected through a survey over a period of two months from a representative sample of consumers in three European countries (n=1829), the UK (n=605), Germany (n=600) and Greece (n=624). Findings – The findings suggest that Aaker’s dimensions of consumer-based brand equity cannot be clearly separated. More specifically the dimensions of brand awareness, brand associations and brand loyalty could not be always clearly discriminated in all national contexts. Originality/value – The paper contributes to the limited amount of cross-national research on brand equity by assessing the most widely used conceptualization of consumer-based brand equity. Contrary to previous research, this study has used data from real consumers who evaluated a range of brands across product categories (including goods, services and Internet)

A mixed methods evaluation of medical tattooing for people who have experienced a burn injury

Introduction: There are no existing studies examining the psychological merits of using facial medical tattooing (MT) following burn injury. This study evaluated an MT service supported by The Katie Piper Foundation. It examined accessibility, satisfaction and whether there were improvements in quality of life (QoL). Methods: Thirty-five service-users were invited to participate in a cross-sectional online survey. Twenty-five (71%) responded (24 women; age range = 21–64 years), and of these five (4 women; age range = 26–59 years) also participated in telephone interviews, which were analysed using descriptive thematic analysis. Findings: The service was largely considered easy to access (22/25) and convenient (25/25). Most service-users (22/25) were satisfied with the results of MT. Some areas of dissatisfaction were described, by a minority of service-users, including: the procedure being painful (1/25); the tattoo being below expectation or fading over time (3/25). The majority reported that MT had improved confidence (22/25); mood (19/25); and ability to socialise (19/25). The procedure improved some service-users’ ability to carry out essential activities (14/25) and enjoyable activities (16/25). The qualitative responses provided during interview, indicated that all respondents found the procedure useful to their adjustment, although a minority (3/5) found it painful and also commented on fading (1/5). All described MT as contributing to a sense of increased normality. Conclusions: MT had the largest impact on emotional wellbeing and interpersonal domains of QoL. MT services should now improve awareness of the procedure, lobby for further support to provide wider access to the procedure, and routinely use measures assessing psychosocial outcomes

FMCW Radar with Enhanced Resolution and Processing Time by Beam Switching

We present the design of a novel K-band radar architecture for short-range target detection. Applications include direction finding systems and automotive radar. The developed system is compact and low cost and employs substrate-integrated-waveguide (SIW) antenna arrays and a $4\times 4$ Butler matrix (BM) beamformer. In particular, the proposed radar transmits a frequency modulated continuous-wave (FMCW) signal at 24 GHz, scanning the horizontal plane by switching the four input ports of the BM in time. Also, in conjunction with a new processing method for the received radar signals, the architecture is able to provide enhanced resolution at reduced computational burden and when compared to more standard single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) systems. The radar performance has also been measured in an anechoic chamber and results have been analyzed by illuminating and identifying test targets which are 2° apart, while also making comparisons to SIMO and MIMO FMCW radars. Moreover, the proposed radar architecture, by appropriate design, can also be scaled to operate at other microwave and millimeter-wave frequencies, while also providing a computationally efficient multi-channel radar signal processing platform

Life course socioeconomic position and body composition in adulthood: a systematic review and narrative synthesis

INTRODUCTION: Multiple systematic reviews have investigated the relation between socioeconomic position (SEP) and body mass index (BMI) throughout the life course. However, BMI does not capture quantity and distribution of fat and muscle, which are better indicators of obesity than BMI, and have been independently linked to adverse health outcomes. Less is known about the relation between SEP and body composition, and the literature has not been reviewed. We therefore systematically reviewed the literature on the association between life course SEP and body composition in adulthood. METHODS: A protocol was registered on PROSPERO (CRD42019119937), and the review followed PRISMA guidelines. An electronic search of three databases (MEDLINE, Embase Classic + Embase and SPORTDiscus) was conducted. Original studies in the English language were included that examine the association between any recognised measure of SEP at any age and body composition (fat mass, fat-free mass, ratio and distribution) in adulthood, measured using a direct technique, i.e., not an anthropometric measure. A narrative synthesis was conducted. RESULTS: A total of 47 papers were included in the final review, none were from low-income countries (LICs). Greater advantage in childhood and adulthood was associated with lower fat levels in high-income countries (HICs). Associations in the opposite direction were found exclusively in middle-income countries (MICs). No studies in MICs reported associations for childhood SEP. For measures of lean mass, the majority of papers reported no association, or greater advantage in adulthood associated with higher lean mass, with little variation between HICs and MICs. Associations in HICs are more often observed in women than men. CONCLUSION: The results indicate that fat measures follow similar patterns to those seen for BMI, and that women in HICs are more likely to experience inequalities in both fat and lean measures. Further research in LICs and MICs is needed

Examining the Drinking Motives Questionnaire-Revised Short Form among university students in Australia, New Zealand and Argentina

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