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This paper aims to describe the use of optimization approaches to increase the range of near-future howitzer ammunition.

The performance of a gliding projectile concept is assessed using an aeroballistic workflow, comprising aerodynamic characterization and flight trajectory computation. First, a single-objective optimization is run with genetic algorithms to find the maximal attainable range for this type of projectile. Then, a multi-objective formulation of the problem is proposed to consider the compromise between range and time of flight. Finally, the aerodynamic model used for the gliding ammunition is evaluated, in comparison with direct computational fluid dynamics (CFD) computations.

Applying single-objective range maximization results in a great improvement of the reachable distance of the projectile, at the expense of the flight duration. Therefore, a multi-objective optimization is implemented in a second time, to search sets of parameters resulting in an optimal compromise between fire range and flight time. The resulting Pareto front can be directly interpreted and has the advantage of being useful for tactical decisions.

The main limitation of the work concerns the aerodynamic model of the gliding ammunition, which was initially proposed as an alternative to reduce significantly the computational cost of aerodynamic characterization and enable optimizations. When compared with direct CFD computations, this method appears to induce an overestimation of the range. This suggests future evolution to improve the accuracy of this approach.

To the best of the authors’ knowledge, this paper presents an original ammunition concept for howitzers, aiming at extending the range of fire by using lifting surfaces and guidance. In addition, optimization techniques are used to improve the range of such projectile configuration.

The present paper deals with weapon aerodynamics and aims to describe preliminary studies that were conducted for developing the next generation of long-range guided ammunition. Over history, ballistic research scientists were constantly investigating new artillery systems capable of overcoming limitations of range, accuracy and manoeuvrability. While futuristic technologies are increasingly under development, numerous issues concerning current powdered systems still need to be addressed. In this context, the present work deals with the design and the optimization of a new concept of long-range projectile with regard to multidisciplinary fields, including flight scenario, steering strategy, mechanical actuators or size of payload.

Investigations are conducted for configurations that combine existing full calibre 155 mm guided artillery shell with a set of lifting surfaces. As the capability of the ammunition highly depends on lifting surfaces in terms of number, shape or position, a parametric study has to be conducted for determining the best aerodynamic architecture. To speed-up this process, initial estimations are conducted thanks to low computational cost methods suitable for preliminary design requirements, in terms of time, accuracy and flexibility. The WASP code (Wing-Aerodynamic-eStimation-for-Projectiles) has been developed for rapidly predicting aerodynamic coefficients (static and dynamic) of a set of lifting surfaces fitted on a projectile fuselage, as a function of geometry and flight conditions, up to transonic velocities.

In the present study, WASP predictions at Mach 0.7 of both normal force and pitching moment coefficients are assessed for two configurations.

Analysis is conducted by gathering results from WASP, computational-fluid-dynamics (CFD) simulations, wind-tunnel experiments and free-flight tests. Obtained results demonstrate the ability of WASP code to be used for preliminary design steps.

The purpose of this study is to review and summarise the current body of literature on brand extension feedback effects and to identify which research issues are inhibiting advancement in this stream of literature. Based on this analysis, suggestions for future research are provided.

In a systematic literature review, criteria were used to identify relevant journal publications that have specifically investigated brand extension feedback effects (n = 53). Research articles were subsequently evaluated for further analysis.

Several issues may inhibit advancement in the literature on brand extension feedback effects. These include issues related the conceptual, methodological and context of research, as well as related to the consumer, product, brand and marketing. Specific research questions are provided which address issues found in this literature stream.

This paper aims to resolve issues in research on brand extension feedback effects to facilitate more rapid advancement in this stream of literature.

This research fills a need to summarise the current state of the literature and identifies research issues that need to be addressed in the future.

In a fast evolving labour market, higher education graduates need to develop employability competences. Key in becoming employable is the ability to reflect on learning experiences, both within a curriculum as well as extra-curricular and work placements. This paper wants to conceptualise how an online learning platform might entail a reflective practice that systematically supports students in reflecting on their learning experiences.

When studying online learning platforms for developing students' employability competences, it became clear that the effectiveness of the platform depends on how the platform guides students' reflective practice. In turn, the authors studied which features (tools, services and resources) of the online learning platform are guiding the reflective practice.

This resulted in the introduction of an online learning platform, containing a comprehensive set of online learning tools and services, which supports students' reflective practice and, in turn, their employability competences. The online platform facilitates both feedback from curricular and work-related learning experiences and can be used as a start by students for showcasing their employability competences. The reflective practice consists of a recurrent, systematic process of reflection, containing various phases: become aware, analyse current state, draft and plan a solution, take action and, finally, reflect in and on action.

Future research revolves around studying the features of online learning platforms and their role in fostering students' reflection and employability competences.

The conceptual model provides concrete indicators on how to implement online learning platforms for supporting students' reflection and employability competences.

This is the first article that analyses an online learning platform that guides students' reflective practice and fosters their employability competences. The authors provide concrete suggestions on how to model the online platform, building further on reflective practice theory.

At a time when many people are experiencing stress, burnout, and strain at work, a relaxing vacation becomes increasingly important. Remote locations such as Bali, the Maldives, or the Caribbean have experienced a steady increase in popularity: exotic dishes, turquoise water, and white sandy beaches are often tourist magnets. While the corona crisis is changing the name of the game at this point, those destinations may attract travelers seeking remote destinations catering to the individual rather than the group. In response, new luxury resorts have emerged in recent years fostering global travel with its set of positive and negative impacts on the environment, the economy, and communities. In light of a global climate emergency, is luxury tourism in remote destinations compatible with sustainable development? This chapter, exploratory by nature, concludes that if there is one hope, it is that sustainability becomes the sine qua non of luxury tourism in the near, post-corona future.

The purpose of this study is to conceptually address the understanding of certain consumers and businesses that show new dynamics, including a heightened interest in quality and the concomitant development of entities and mechanisms designed to ensure certain standards as well as an increased level of involvement of the consumer with the product. These segments are identified and labeled as sophisticated markets.

Through a literature review following a conceptual model methodology, this study poses eight research propositions to seek a more profound and comprehensive understanding of this type of market that could potentially benefit several industries. This study explores and discusses some of the essential differences of sophisticated markets with a twofold purpose: to recognize the existence of sophisticated markets as a distinct category and suggest issues that may constitute interesting further research works.

The process of sophistication might occur in different industries. This study poses implications of sophisticated markets to better understand consumers and business through research propositions that can be classified into two main domains: consumer–firm relationships and communicational implications.

Previous studies addressing luxury or specialized markets have not considered these terms to be sufficient to describe what we propose be labeled as a sophisticated market. This study addresses this gap in literature and proposes a streamline of research that pursues a deeper understanding of this phenomenon.

Este estudio aborda de forma conceptual dinámicas novedosas que se están presentando en el ámbito de ciertos segmentos de consumidores y de ciertos sectores empresariales. Estas nuevas dinámicas incluyen elementos como un mayor interés en la calidad y en el desarrollo de satisfactores encaminados al aseguramiento de ciertos estándares, así como un mayor nivel de involucramiento del consumidor con el producto. Estos segmentos son identificados y etiquetados aquí como mercados sofisticados.

A través de una revisión de la literatura, siguiendo una metodología de modelo conceptual, este estudio plantea ocho proposiciones científicas dirigidas a la búsqueda de una comprensión más profunda y completa de este tipo de mercados. Este artículo explora y discute algunas de las diferencias esenciales de los mercados sofisticados, con respecto a los mercados tradicionales, con un doble propósito: (1) reconocer la existencia de los mercados sofisticados como una categoría distinta de negocio y (2) sugerir elementos y relaciones que pueden constituir trabajos interesantes de investigación a futuro.

Este proceso de sofisticación puede ocurrir en diferentes industrias. A través de estas proposiciones de investigación, este trabajo plantea elementos que pueden ayudar a incrementar el entendimiento que tenemos de este tipo de consumidores y empresas en dos grandes vertientes: la relación consumidor-empresa, y las implicaciones de la comunicación hacia estos segmentos sofisticados.

Estudios previos enfocados en bienes de lujo o mercados especializados no logran explicar lo que proponemos aquí como el fenómeno de mercados sofisticados. Este estudio busca cubrir este vacío en la literatura proponiendo líneas de investigación encaminadas a profundizar en el entendimiento de este fenómeno.

Este estudo aborda de forma conceitual dinâmicas inovadoras que estão surgindo no âmbito de certos segmentos de consumidores e setores empresariais. Essas novas dinâmicas incluem elementos como maior interesse na qualidade e no desenvolvimento de satisfatores voltados para garantir determinados padrões, bem como maior envolvimento do consumidor com o produto. Esses segmentos são identificados e rotulados aqui como mercados sofisticados.

Através de uma revisão da literatura, seguindo uma metodologia de modelo conceitual, este estudo apresenta oito proposições científicas voltadas para a busca de uma compreensão mais profunda e completa desse tipo de mercados. Este artigo explora e discute algumas das diferenças essenciais dos mercados sofisticados em relação aos mercados tradicionais, com um duplo propósito: (1) reconhecer a existência dos mercados sofisticados como uma categoria distinta de negócios e (2) sugerir elementos e relações que podem constituir trabalhos interessantes de pesquisa no futuro.

Este processo de sofisticação pode ocorrer em diferentes indústrias. Através dessas proposições de pesquisa, este trabalho apresenta elementos que podem ajudar a aumentar a compreensão que temos desse tipo de consumidores e empresas em duas grandes vertentes: a relação consumidor-empresa e as implicações da comunicação para esses segmentos sofisticados.

Estudos prévios focados em bens de luxo ou mercados especializados não conseguem explicar o que propomos aqui como o fenômeno de mercados sofisticados. Este estudo busca preencher essa lacuna na literatura propondo linhas de pesquisa com o objetivo de aprofundar a compreensão desse fenômeno.

The purpose of this paper is to empirically assess the impact of branding strategies on horizontal and downward line extensions of French luxury brands in a cross-national context (France vs USA).

This study is based on a two line extensions (horizontal/downward) × three branding strategies (direct brand/sub-brand/standalone brand) x two country (France/USA) between-subjects ANOVA design.

The study shows that the subtyping effect created by a sub-branded luxury downward line extension tends to be rated similarly to a direct branded extension which oppose previous beliefs put forward in non-luxury settings. In contrast, a new independent/standalone extension fully uses the subtyping effect which helps attenuate this risk related to luxury downward stretches. The study also found that the effect of gender in cross-national settings must always be taken into consideration as significant variations occur in the process.

The study covers two countries but should be replicated in other cross-national contexts.

This study helps marketing managers of luxury brands make a better decision when it comes to launching vertical line extensions (upscale/downward) by carefully using types of branding strategies and relevant communications whether women and/or men are targeted in cross-national contexts.

This study breaks new ground in the international luxury literature by providing key theoretical and managerial insights in terms of launching new downward line extensions with the proper use of branding strategies when targeting specific genders.

The purpose of this paper is to improve and facilitate the work of developers and usability evaluators by providing an adaptable and effective support. A well-defined set of criteria and a range of evaluation values for each criterion as well as a complete websites classification, will guide evaluators. A usability percentage and a list of prioritized criteria, adapted to the type of website by a new usability metric, will help developers to improve the website. This improvement will increase the degree of web user satisfaction.

Having established and validated a new usability evaluation framework, several usability tools have been analyzed. None of them totally fulfills the requirements of the evaluation framework. As a result of being unable to customize any of them, a new one has been developed. A study of 42 enterprise websites in an economically depressed region of Europe was performed using the new tool. This study involved 42 evaluators and 118 web users. Users have evaluated the websites before and after the redesign. A end-user computing satisfaction model-based questionary was used to collect data about end-user satisfaction. The results validate the proposal.

The study confirms that the proposed tool provides valuable information during the process of web development, evaluation and redesign. In adittion, it reveals that improving websites usability by ensuring criteria compliance has a positive effect on web users satisfaction.

Unlike previous purposes, the proposed tool allows to evaluate any type of website with a well-defined set of evaluation criteria and specific criteria values. As outcomes, the tool provides the website usability degree and a list of criteria ordered by priority repair. These results are adapted to the specific type of website. This makes easier and more effective the redesign of the evaluated website.