نتایج جستجو برای: cr production systems on canopy closure

تعداد نتایج: 9227740  

Journal: :Cold Regions Science and Technology 2022

Mapping snow in forests is important for understanding the cover dynamics these environments view of hydrological applications and water resources management. Today, Uncrewed Aerial Vehicles (UAVs) are widely used studies due to their rather cheap flexible operation. UAV-borne Light detection ranging (LiDAR) systems a promising technology sub-canopy mapping at high temporal resolutions, concurr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1389

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

2011
Zengmao Chen

Radio spectrum is becoming increasingly scarce as more and more devices go wireless. Meanwhile, studies indicate that the assigned spectrum is not fully utilised. Cognitive radio (CR) technology is envisioned to be a promising solution to address the imbalance between spectrum scarcity and spectrum underutilisation. It improves the spectrum utilisation by reusing the unused or underutilised spe...

Journal: :Notre Dame Journal of Formal Logic 1994

2006
David D Breshears

www.frontiersinecology.org © The Ecological Society of America F an airplane, we often look out the window and survey the landscape as we begin our final descent. As we get closer to the ground, our focus changes from an initial broad survey of the topography to an increasingly detailed picture of vegetation patterns. Perhaps the first thing we notice is the extent to which the land is covered ...

Journal: :Earth System Dynamics Discussions 2021

Abstract. The co-occurrence of droughts and heatwaves can have significant impacts on many socioeconomic environmental systems. Groundwater has the potential to moderate impact by moistening soil enabling vegetation maintain higher evaporation, thereby cooling canopy. We use Community Atmosphere Biosphere Land Exchange (CABLE) land surface model, coupled a groundwater scheme, examine how influe...

Journal: :Physiological research 2014
Y Chen K Hagopian D Bibus J M Villalba G López-Lluch P Navas K Kim J J Ramsey

Calorie restriction (CR) has been shown to decrease reactive oxygen species (ROS) production and retard aging in a variety of species. It has been proposed that alterations in membrane saturation are central to these actions of CR. As a step towards testing this theory, mice were assigned to 4 dietary groups (control and 3 CR groups) and fed AIN-93G diets at 95 % (control) or 60 % (CR) of ad li...

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