نتایج جستجو برای: height of 16360 469 m

تعداد نتایج: 21212028  

One of the most important issues in forest biometrics is the use of allometric functions to estimate the tree height by using diameter-height models. Measuring the total height of trees is usually a complex and time-consuming process. In allometric functions, the diameter is measured directly but the height of the tree is an estimate of an allometric model, which will be more accurate if the cr...

2016
Hao Zang Xiangdong Lei Weisheng Zeng Eric J. Jokela

Determining the response of dominant height growth to climate change is important for understanding adaption strategies. Based on 550 permanent plots from a national forest inventory and climate data across seven provinces and three climate zones, we developed a climate-sensitive dominant height growth model under a mixed-effects model framework. The mean temperature of the wettest quarter and ...

Journal: :علوم باغبانی 0
محمد کافی شهرام رضوان بیدختی سارا سنجانی

abstract persian shallot (moseer) belongs to alliaceae family, is a perennial medicinal and industrial edible alliums in iran. very little information is available about different aspects of this species particularly on its agronomical production. in order to determine optimum sowing date and plant density in persian shallot, an experiment was conducted as split plot based on complete randomize...

Journal: :تحقیقات آب و خاک ایران 0
لیلا مهردار دانشجوی کارشناسی ارشد دانشگاه ارومیه محمد همتی هیئت علمی دانشگاه ارومیه مهدی یاسی هیات علمی گروه مهندسی آب دانشگاه ارومیه

bendway weirs are an important tool in multi-purpose erosion control and are implemented to control erosion, restore streams, and improve habitat. these structures create a hydraulic effect that reduces erosion on the outer bank of a bend by reducing flow velocities near the outer bank and reduce the concentration of currents on the outer bank creating better current alignment through the bend....

Abstract    Historical monument of Menar-Jonban (shaking tower) is located in the famous city of Isfahan in central Iran. Initial construction of this interesting and unique masonry monument belongs to 700 years ago. This monument has two vibrating circular towers of 7.5 m height. These towers are separated from each other by a distance of 9.2 m and constructed on top of an ancient tomb of 10 m...

2001
A. V. Turukhin J. A. Musser

We report ultraslow group velocities of light in a solid. Light speeds as slow as 45 m/s were observed, corresponding to a group delay of 66 μs in a 3-mm thick crystal. Reduction of the group velocity is accomplished by using a sharp spectral feature in absorption and dispersion, produced by a Raman excited spin coherence in an optically dense Pr doped Y2SiO5 crystal. PACS numbers: 42.50.-p, 42...

Journal: :international journal of advanced biological and biomedical research 2014
seyed babak salvatian farshad soheili-fard koorosh majd salimi

tea is very important product in many countries due to huge consumption in the world and its valuable contains. the traditional harvesting method needs to be improved due to its effect on yield and quality. mechanical plucking as a substitution to conventional method is spreading quickly and is necessary to be investigated for proper adoption. one of crucial factor has been noted to be the heig...

Journal: :Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 2009
Philip R Khoury Mark Mitsnefes Stephen R Daniels Thomas R Kimball

BACKGROUND In older children, one of the standards for indexing left ventricular mass (LVM) is height raised to an exponential power of 2.7. The purpose of this study was to establish a normal value for the pediatric age group and to determine how, if at all, LVM/height(2.7) varies in children. METHODS M-mode echocardiography was performed in 2,273 nonobese, healthy children (1,267 boys, 1,00...

In order to investigate the interaction of mycorrhizal fungi and salinity on growth and physiological characteristics of sweet corn, a greenhouse experiment was conducted at College of Agriculture, Shiraz University, in 2014. The experimental design was factorial based on Completely Randomized Design in three replications. Treatments included salinity at four levels (0.4 (control), 4, 7, 10 dS ...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2008
Elisabeth F Beaber Victoria L Holt Kathleen E Malone Peggy L Porter Janet R Daling Christopher I Li

Numerous studies have evaluated the association between factors related to maturation and reproduction and breast cancer risk, but few have assessed how these factors are related to different histologic types of breast cancer among postmenopausal women. We used polytomous logistic regression to assess the effect of age at maximum height and reproductive factors on risk of invasive breast cancer...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید