Injection-moulded blends of a thermotropic liquid crystalline polymer with polyethylene terephthalate,polypropylene, and polyphenylene sulfide

The properties of various blends of a polyester-type thermotropic liquid crystalline polymer (LCP) with polyethylene terephtalate, polypropylene, and polyphenylene sulfide were investigated. The polymers were blended in a twin screw extruder after which samples were injection moulded. The mechanical properties, morphology, and thermal properties of the blends are discussed.     

Language Brokering: Stimulating Creativity during the Concept Development Phase

To improve product styling and ergonomics, a growing number of companies are exploring new ways to involve design consultants in their innovation processes. Many studies have underlined the importance of designers in the innovation processes of successful companies, and some designers have achieved ‘superstar’ status. By capturing, recombining and integrating socio‐cultural knowledge and product semantics across social and industrial settings, designers can help create breakthrough product meanings. The relationship between briefs written by managers and solutions developed by designers is quite complex. Very often managers are unable to appropriately communicate and commercialize new products and services conceptualized by designers because they know only the final output of the innovation process rather than its entire story. The Language Brokering Process can enrich the dialectic between managers and designers, and consequently, it can improve both current and future innovation projects. This methodology elucidates the structure and process adopted by several designers and also illustrates an effective framework for communicating choices to managers. We present results from a student application of this methodology in the development of a new product‐service system for Aquarius (a brand of the Coca‐Cola Group) for two target demographics: ‘desperate housewives’ and ‘young adults’.     

Energy-based control of a distributed solar collector field

Model-based control of the outlet temperature of a distributed solar collector field is studied. An energy-based controller is derived using internal energy as a controlled variable. The controller relies on a distributed parameter nonlinear plant model and includes feedforward from the solar irradiation and inlet temperature. Convergence of the closed loop is proved, and the method is experimentally verified to perform well on a pilot-scale solar power plant.     

Combining Master and Apprentice Roles: Potential for Learning in Distributed Manufacturing Networks

The purpose of this paper is to explore possible effects for learning when a manufacturing plant takes a double role, as being both master plant and apprentice plant, in a globally distributed industrialization process. Industrialization is here understood as the process of preparing new products for volume manufacturing. Two research questions are addressed. The first is what characterizes the dual roles. The second concerns how the dual roles affect knowledge integration and learning processes, and whether this arrangement facilitates learning between master and apprentice. Based on a study of a global telecom equipment company, the paper provides insights into some of the challenges and effects of dynamic switching of roles. By separating the network function from the strategic role of the plant, the study identifies four options for learning. The case adds to the literature on learning in manufacturing networks and to previous research on how distributed processes affect innovation capability.     

Spatial ability for STEM domains: Aligning over 50 years of cumulative psychological knowledge solidifies its importance.

The importance of spatial ability in educational pursuits and the world of work was examined, with particular attention devoted to STEM (science, technology, engineering, and mathematics) domains. Participants were drawn from a stratified random sample of U.S. high schools (Grades 9–12, N = 400,000) and were tracked for 11+ years; their longitudinal findings were aligned with pre-1957 findings and with contemporary data from the Graduate Record Examination and the Study of Mathematically Precocious Youth. For decades, spatial ability assessed during adolescence has surfaced as a salient psychological attribute among those adolescents who subsequently go on to achieve advanced educational credentials and occupations in STEM. Results solidify the generalization that spatial ability plays a critical role in developing expertise in STEM and suggest, among other things, that including spatial ability in modern talent searches would identify many adolescents with potential for STEM who are currently being missed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Assessing vocational preferences among gifted adolescents adds incremental validity to abilities: A discriminant analysis of educational outcomes over a 10-year interval.

The researchers used the theory of work adjustment (R. V. Dawis & L. H. Lofquist, 1984; L. H. Lofquist & R. V. Dawis, 1991) and C. P. Snow's (1959) conceptualization of two cultures as theoretical frameworks to analyze the incremental validity of above-level preference assessment (relative to abilities) in predicting humanities, math-science, and other college majors completed 10 years later by intellectually gifted adolescents. Scholastic Aptitude Tests and Study of Values assessments of 432 intellectually gifted adolescents (age 13) provided unique and valuable information for predicting the type of college major completed 10 years after initial assessment. These positive findings add to growing support for the applied utility of teaming preference assessments among the gifted with above-level assessments of ability. For intellectually gifted adolescents, these assessments could facilitate educational planning (and counseling). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Approaches to the design of sustainable housing with low CO2 emission in Denmark

Over the last year there has been a remarkable change in politicians' attitudes within Denmark and EU member states to the issue of climate change. This change in the political mindset is a result of the increasing frequency of high winds and flooding in Denmark and Europe, as well as in many other places around the world in recent years. This has resulted in an increasing challenge in terms of the planning, design and building of more sustainable buildings in order to reduce the use of energy for heating and cooling in new housing projects by bringing down the emission of CO₂ by reducing the amount of fossil fuel consumed by the built environment. This is crucial since carbon dioxide is one of the so-called greenhouse gases that is playing a major role in global warming. There is thus an increased focus on reducing the CO₂ level on a national and global scale. This article will look at the architectural and legislative changes in Denmark in relation to the increased political interest in the consequences of climate change. The article also discusses a survey of different types of approaches to the sustainable design of buildings and shows examples of new Danish housing projects that can minimise the use of energy for heating and cooling in the shape of detached houses, as well as a master thesis on high-rise houses.     

Work preferences, life values, and personal views of top math/science graduate students and the profoundly gifted: Developmental changes and gender differences during emerging adulthood and parenthood.

Work preferences, life values, and personal views of top math/science graduate students (275 men, 255 women) were assessed at ages 25 and 35 years. In Study 1, analyses of work preferences revealed developmental changes and gender differences in priorities: Some gender differences increased over time and increased more among parents than among childless participants, seemingly because the mothers’ priorities changed. In Study 2, gender differences in the graduate students’ life values and personal views at age 35 were compared with those of profoundly gifted participants (top 1 in 10,000, identified by age 13 and tracked for 20 years: 265 men, 84 women). Again, gender differences were larger among parents. Across both cohorts, men appeared to assume a more agentic, career-focused perspective than women did, placing more importance on creating high-impact products, receiving compensation, taking risks, and gaining recognition as the best in their fields. Women appeared to favor a more communal, holistic perspective, emphasizing community, family, friendships, and less time devoted to career. Gender differences in life priorities, which intensify during parenthood, anticipated differential male-female representation in high-level and time-intensive careers, even among talented men and women with similar profiles of abilities, vocational interests, and educational experiences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Diversity and dynamic of lactic acid bacteria strains during aging of a long ripened hard cheese produced from raw milk and undefined natural starter

The aim of this study was to explore diversity and dynamic of indigenous LAB strains associated with a long ripened hard cheese produced from raw milk and undefined natural starter such as PDO Grana Padano cheese. Samples of milk, curd, natural whey culture and cheeses (2nd, 6th, 9th and 13th months of ripening) were collected from 6 cheese factories in northern Italy. DNA was extracted from each sample and from 194 LAB isolates. tRNA^Ala-23S rDNA-RFLP was applied to identify isolates. Strain diversity was assessed by (GTG)5 rep-PCR and RAPD(P1)-PCR. Finally, culture-independent LH-PCR (V1–V2 16S-rDNA), was considered to explore structure and dynamic of the microbiota. Grana Padano LAB were represented mainly by Lactobacillus rhamnosus, Lactobacillus casei, Lactobacillus paracasei, Lactobacillus delbrueckii, Lactobacillus helveticus and Pediococcus acidilactici, while the structure and dynamic of microbiota at different localities was specific. The strength of this work is to have focused the study on isolates coming from more than one cheese factories rather than a high number of isolates from one unique production. We provided a valuable insight into inter and intraspecies diversity of typical LAB strains during ripening of traditional PDO Grana Padano, contributing to the understanding of specific microbial ecosystem of this cheese.