This study was conducted to determine the effect of increased propolis production on overall hive profitability and productivity. The study took place near George situated in the Southern Cape region of South Africa. Standard Langstroth hives were used (n = 12) containing honeybee colonies of equal strength from the species Apis mellifera capensis. Propolis production in colonies equipped with ...

As long as total effort cannot be completely controlled, a more thorough understanding of fishers’ supply response decisions will be beneficial for fishery managers. In this paper, we present a model of fishers’ gear choice, which is empirically estimated on a panel of Swedish demersal trawlers. The approach allows for heterogeneity both in production technology and in risk preferences. Stochas...

Astudy was carried out with the objective of establishing heat and moisture loads in three commercial egg laying units in Alberta under winter conditions. The units studied were typical of triple-deck, deep-pit, and shallow-gutter, caged systems. Each unit was monitored for six 24-h periods over 4 mo. Adata acquisition system was used tocollect the data necessary to carry outa complete heat and...

© Numerical Simulation and Analysis of Commercial Print Production Systems Jun Zeng, I-Jong Lin, Eric Hoarau, Gary Dispoto

89 Introduction Baker’s yeast is used to leaven bread throughout the world and it is the type of yeast that people are most familiar with1-2. Commercial baker’s yeasts (Saccharomyces cerevisiae) are mostly used for the fermentation of modern bread making3. These yeast products contain almost 5% contaminating lactic bacteria and these bacteria play an important role in the production of flavour ...

BACKGROUND Ginsenoside F1, a pharmaceutical component of ginseng, is known to have antiaging, antioxidant, anticancer, and keratinocyte protective effects. However, the usage of ginsenoside F1 is restricted owing to the small amount found in Korean ginseng. METHODS To enhance the production of ginsenoside F1 as a 10 g unit with high specificity, yield, and purity, an enzymatic bioconversion m...

Commercial cyclotron systems used for 18F production through 18O (p, n) 18F reaction face several conflicting requirements that include: reliability/uptime, quantity of consumables, safety, cost and yield. With commercialization of PET tracer distribution, higher yield has become one of the most important requirements. Maximizing yield for commercial cyclotrons require engineering trade-off amo...

Research was carried out on possibilities to improve methods commonly used in commercial potato tissue culture laboratories, predominantly those in Western Canada. The study included: (1) Photoautotrophic micropropagation, (2) Short-term, low temperature (< 12 weeks) storage of plantlets, (3) Production of microtubers (in vitro tubers) and (4) Utilization of microtubers in greenhouse production...

This work gives an overview of the production, properties and industrial applications of metal foams. First, it classifies the most relevant manufacturing routes and methods. Then, it reviews the most important properties, with special interest in the mechanical and functional aspects, but also taking into account costs and feasibility considerations. These properties are the motivation and bas...