A new type of greenhouse with linear Fresnel lenses in the cover performing as a concentrated photovoltaic (CPV) system is presented. The CPV system retains all direct solar radiation, while diffuse solar radiation passes through and enters into the greenhouse cultivation system. The removal of all direct …

Energy efficiency has gained a lot of prominence in recent debates on urban sustainability and housing policy due to its potential consequences for climate change. At the local, national and also international level, there are numerous initiatives to promote energy savings and the use of renewable energy …

Performance results are given of a new type of greenhouse, which combines reflection of near infrared radiation (NIR) with electrical power generation using hybrid photovoltaic cell/thermal collector modules. Besides the generation of electrical and thermal energy, the reflection of the NIR will result …

A new CPV system with a static linear Fresnel lens, silicon PV module suitable for concentrated radiation and an innovative tracking system is integrated in a greenhouse covering. The basic idea of this horticultural application is to develop a greenhouse for pot plants (typical shadow plants) which …

In an previous research project a new type of greenhouse with an integrated concentrated photovoltaic system (CPV) was developed which has an integrated filter for reflecting the near infrared radiation (NIR) to the greenhouse and exploiting this radiation in a solar energy system. The performance of …

Purpose. This cross-sectional study investigates deficits and associations in muscle strength, 6-minute walking distance (6MWD), aerobic capacity (VO2peak), and physical activity (PA) in independent ambulatory children with lumbosacral spina bifida. Method. Twenty-tree children participated (13 boys, …

Voor de huidige milieuproblemen als het broeikaseffect zijn systeem innovaties nodig in de energievoorziening, mobiliteit, landbouw en het grondstofgebruik. De overheid kan dit slechts stimuleren en daarom is betrokkenheid van burgers en bedrijven in de vorm van maatschappelijk verantwoord ondernemen …

Objective: To determine the effects on energy expenditure, health and fitness outcomes after 12 months of GALM. Methods: Subjects from matched neighbourhoods were assigned to an intervention (IG) (n = 79) or a waiting-list control group (CG) (n = 102). During the 12 months the IG attended two series of …

This research report will analyse the European Energy Performance of Buildings Directive which is considered to be a very important legislative part of the energy efficiency activities of the European Union designed to meet the Kyoto commitments (reducing global warming) and reduce Europe's increasing …

Objective: To determine the effects on energy expenditure, health and fitness outcomes in sedentary older adults aged 55-65 after 6-month participation in the GALM program. Methods: In three Dutch communities, subjects from matched neighbourhoods were assigned to an intervention (n = 79) or a waiting-list …