in the last decade, frequency of late cold incidence has increased in the upland forest nurseries. the aim of present study was to reduce the damage caused by spring frost and to increase the efficiency of persian maple seedlings production in mountain nurseries. this study was conducted as split plot design with two main treatments and three replications in two consecutive years (2009-2010) in...

A field experiment was established in a second-growth hardwood forest dominated by red oak (Quercus rubra L.) to examine the effects of shelterwood overstory density on leaf gas exchange and seedling water status of planted red oak, naturally regenerated red oak and sugar maple (Acer saccharum Marsh.) seedlings during the first growing season following harvest. Canopy cover of uncut control sta...

Sugar maple syrup production is an important economic activity for eastern Canada and the northeastern United States. Since annual variations in syrup yield have been related to climate, there are concerns about the impacts of climatic change on the industry in the upcoming decades. Although the temporal variability of syrup yield has been studied for specific sites on different time scales or ...

Modern software is playing an important role in teaching calculus to the students. Maple software is one of them. Maple software is a system that will be useful for mathematicians, teachers, engineers, researchers and scientists, who are faced with the design calculations, logical International Journal of Scientific & Engineering Research, Volume 7, Issue 3, March-2016 ISSN 2229-5518 1384 IJSER...

together with their Maple implementations, which is relevant both to people being interested in symbolic computation and in q-series. For all these algorithms, the theoretical background is already known and has been described, so we give only short descriptions, and concentrate ourselves on introducing our corresponding Maple implementations by examples. Each section is closed with a descripti...

We investigated two methods to create white pine and red maple snags in a forested setting. The first involved injecting trees with ethanol at two times (single Ethanol (ETOH) and double ETOH injections) to increase attractiveness to insects and elicit attacks on trees. The second method was unique to white pines and involved both injection treatments in combination with baiting trees with Ips-...

Ž . We have combined some of the major positive advantages of laser-induced forward transfer LIFT and matrix-assisted Ž . pulsed laser evaporation MAPLE , to produce a novel excimer laser driven direct writing technique which has demonstrated the deposition in air and at room temperature and with sub-10 mm resolution of active and passive prototype circuit elements Ž on planar and nonplanar sub...

Nanoparticles are being explored in many different applications due to the unique properties offered by quantum effects. To broaden the scope of these applications, the deposition of nanoparticles onto substrates in a simple and controlled way is highly desired. In this study, we use resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) for the deposition of metallic, silver na...

Coarse-grained molecular dynamics simulations are performed to investigate the origins of the surface features observed in films deposited by the Matrix-Assisted Pulsed Laser Evaporation (MAPLE) technique. The simulations of MAPLE are performed for polymer concentrations up to 6 wt.% and a broad range of laser fluences. The polymer molecules are found to be ejected only in the ablation regime a...