نتایج جستجو برای: initial crown
تعداد نتایج: 386632 فیلتر نتایج به سال:
In this paper a novel method is introduced based on the use of an unsupervised version of kernel least mean square (KLMS) algorithm for solving ordinary differential equations (ODEs). The algorithm is unsupervised because here no desired signal needs to be determined by user and the output of the model is generated by iterating the algorithm progressively. However, there are several new impleme...
Wheat lines with Fusarium crown rot and nematode resistances arrived in November of 2006 from the laboratory of Dr. Richard Smiley. In this initial collection, we received 69 wheat lines (46 spring and 23 winter) displaying varying levels of resistance to Fusarium crown rot and plant parasitic nematodes including those to root lesion nematodes (RLN). The late arrival of the collection limited o...
BACKGROUND Coronary artery stents are used for the treatment of acute or threatening vessel occlusion complicating coronary angioplasty or for prevention of restenosis after angioplasty. The current randomized trial compared the procedural outcome and long-term patency of 2 different flexible stents in unselected lesion morphology. METHODS The study population consisted of consecutive patient...
مطالعات تئوری در این پروژه به سه دسته تقسیم می شود: 1-مطالعات تئوری بر روی ساختار و پروتون خواهی: 12-crown-4 ، 15-crown-5، 18-crown-6 و کمپلکس های na li+, وk مربوطه 2- محاسبه ثابت های تشکیل کمپلکس های اترهای تاجی فوق با li , na و k در حلال های مختلف 3- مطالعات تئوری روی برهمکنش کمپلکس های اتر تاجی [m(12-crown-4)]+ (+(m+=li+, na+, k+ با یون های هالید (f-, cl-, br-) و نیزتعدادی از مولکول های...
OBJECTIVES The aim of the present study was to investigate pulp survival following crown fracture with and without pulp exposure as well as with and without associated subluxation and in relation to stage of root development and type of enamel-dentine fracture. MATERIALS AND METHODS This study consisted of 83 patients with 116 crown fractured incisors without pulp exposure and 35 patients wit...
Liquid-liquid extractive-spectrophotometric studies of sodium ion complexes of 18crown-6(18C6), dibenzo-18-crown-6(DB18C6), 15-crown-5(15C5), and 12-crown-4(12C4) and anionic dyes [4-(2-pyridylazo)-resorcinol monosodium salt monohydrate (PAR), Eriochrom Black T (EBT), and methyl orange (MOR)] and sodium picrate (PICRAT) as the counter ion are described. The overall extraction equilibrium consta...
Detection and Segmentation of Small Trees in the Forest-Tundra Ecotone Using Airborne Laser Scanning
Due to expected climate change and increased focus on forests as a potential carbon sink, it is of interest to map and monitor even marginal forests where trees exist close to their tolerance limits, such as small pioneer trees in the forest-tundra ecotone. Such small trees might indicate tree line migrations and expansion of the forests into treeless areas. Airborne laser scanning (ALS) has be...
Plethora (PLT) genes encode transcription factors containing AP2-domain, and have been shown to maintain the activity of stem cells and regulate the root development of dicot Arabidopsis thaliana. Through genome-wide analysis, 10 OsPLT members were identified in monocot rice. Quantitative real-time polymerase chain reaction analysis of the expression patterns of these OsPLT genes showed that Os...
The Table Interpolation Program for Stand Yields (tipsy) enables forest managers and timber supply analysts to explore the impacts of variable retention. tipsy variable retention adjustment factors (vrafs) are calculated based on the level and pattern of both group and dispersed tree retention using four primary variables from the retained stand: percent crown cover, average group or crown size...
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