阿根廷vs墨西哥竞猜 knowledge commons: recent submissions
now showing items 621-640 of 3664
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the effect of climate change on mountain pine beetle (dendroctonus ponderosae hopkins) in western canada
(2021)the mountain pine beetle, dendroctonus ponderosae, (mpb) is the largest forest disturbance factor throughout its range in north america. the most recent mpb outbreak began in the 1990s and has resulted in an approximate ... -
a morphological comparison of two canadian populations of the pink striped oakworm (anisota virginiensis drury) (lepidoptera: saturniidae)
(2021)this thesis involves a morphological and physiological comparison of two canadian populations (manitoba and nova scotia), and several usa populations of adult pink-striped oakworm (anisota virginiensis) moths. it was ... -
the effect of block composition on the severity of spruce beetle (dendroctonus rufipennis) damage in northern british columbia
(2021)the spruce beetle (dendroctonus rufipennis) is a natural part of the western north american landscape, feeding on the phloem of trees in the picea genus. the spruce beetle generally feeds on downed trees but can also ... -
acoustic wave propagation testing to determine quality in timber and timber products
(2020)assessing and grading of raw materials in the timber industry is a key factor in the maximization of extracted value. several different approaches are utilized to measure the quality of standing timber and sawn lumber. ... -
industrial biochar characterization : properties and potential applications
(2021)biochar is a carbon-rich charcoal produced from pyrolyzed biomass such as wood, agricultural waste, or animal products. biochar is primarily used as a soil amendment, but it has promising applications in carbon sequestration, ... -
artificial intelligence empowered virtual network function deployment and service function chaining for next-generation networks
(2021)the entire internet of things (iot) ecosystem is directing towards a high volume of diverse applications. from smart healthcare to smart cities, every ubiquitous digital sector provisions automation for an immersive ... -
thermal modification processes, properties, and environmental impacts
(2020)this paper explores the different ways wood is thermally treated in particular looking at thermal treatment processes, properties produced, environmental impacts and market opportunities. review is done on different ... -
the impact of climate change on the phenology of short- and long-distance migratory birds
(2021)quickly changing temperatures due to climate change are expected to have devastating consequences on the migratory bird populations around the globe. however, surprisingly, several studies have demonstrated that some ... -
technologies for silviculture activities: understanding of the practicality of gis and remote sensing, smartphone, and uav lidar
(2020)this thesis explores the technologies apply in silviculture activities. silvicultural activities are an essential process in forest management. to meet management objectives, the forester requires to collect any data, ... -
examining adverse childhood experiences in a first nations treatment-seeking population
(2021)experiencing adversity during childhood can disrupt typical developmental pathways and consequently affect health outcomes throughout the lifespan (norman et al., 2012), particularly for indigenous populations in canada ... -
design methodology for class d ultrasound transducer drivers
(2021)ultrasound refers to sound waves with frequencies above the upper limit of human hearing. due to the high frequency, the energy can be concentrated and used for therapeutic applications, such as ultrasound imaging ... -
medical applications of fluorine-19 and hyperpolarized xenon129 magnetic resonance imaging
(2020)multinuclear magnetic resonance imaging (mri) is currently under extensive development. although conventional proton mri is mostly known as an anatomical medical imaging modality with an excellent soft tissue contrast, ... -
sulfo-functionalization of lignin and its impact on the stabilization of colloidal systems
(2021)lignin macromolecules, derived from renewable biomass resources, have gained extensive interest during the past decade as a sustainable substitute for synthetic oil-based materials. the main goal of this dissertation was ... -
drought effects on soil enzyme activity
(2021)soil extracellular enzyme activity (eea) is a strong predictor for soil health. eea cycle nutrients within terrestrial systems, processing carbon, nitrogen, and phosphorous, while also mineralizing and stabilizing gas. ... -
narcissism predicts facial muscle reactivity during a body comparison threat: the role of personality in shaping affiliative behaviour
(2021)the facial feedback hypothesis suggests that individuals automatically activate facial muscles that are congruent with an expresser’s facial display, which in turn results in a congruent emotional experience within ... -
impact of physicochemical properties of lignin-based polymers on their flocculation and adsorption performance
(2021)industrial and municipal effluents contain colloidal charged particles, dissolved salts, heavy metals and other impurities, which may represent varied health risks and must be removed before discharge into the environment. ... -
male outdoor educators’ understandings of masculinity in practice: a north american case study
(2021)this exploratory, single embedded case study examined male outdoor educators’ understandings of masculinity in the field and how such notions impact their practices. data were collected via interviews (n = 18), observations ... -
carboxyalkylated cullulose nanocrystals for novel applications
(2021)cellulose nanocrystals (cnc), rigid rod-like nanoparticles, are derived from cellulose through acid hydrolysis and are considered as emerging nanomaterials according to their beneficial properties and commercial availability. ... -
interaction of lignin derivatives with polymers, ions and soft surfaces in aqueous systems
(2021)lignin is one of the most abundant biopolymers on earth which has recently gained considerable attention due to its unique potentials to be used in many applications. many efforts have been made in improving the compatibility ... -
a cross-sectional examination of aging, alcohol use, and cognitive health in the canadian longitudinal study of aging (clsa) baseline data
(2020)age, sex, and alcohol use have been identified as factors that influence cognition. the present study aimed to replicate and extend these findings by examining the effects of age, sex, alcohol use, and their interactions ...
