NATURAL ARCHES OF KENTUCKY
نویسندگان
چکیده
منابع مشابه
Optimization of arches using genetic algorithm
An optimization procedure is presented for the minimum weight and strain energy optimization for arch structures subjected to constraints on stress, displacement and weight responses. Both thickness and shape variables defining the natural line of the arch are considered. The computer program which is developed in this study can be used to optimize thick, thin and variable thickness curved beam...
متن کاملSalinity Tolerance of Kentucky Bluegrass as Affected by Salicylic Acid
Salinity is one of the greatest environmental challenges facing plant growth and development in the 21st century. Salicylic acid (SA) is a phenolic compound and signal molecule involved in the regulation of plants responses to biotic and abiotic stresses. This greenhouse experiment was conducted to determine effects of SA application on Kentucky bluegrass (Poa pratensis L.) responses to salinit...
متن کاملLung Cancer in Kentucky
ung cancer accounts for 13% of all new cancer cases — but 28% of all cancer deaths — in the United States. It ranks third in incidence, yet first in mortality. The reason for the discrepancy between the incidence and mortality rates is clear: Not only is lung cancer a common disease, it is also a severe disease with lower survival rates than other major cancers. In this issue we use data from t...
متن کاملConverting the Kentucky Wilderness
The rural central Kentucky landscape today appears as open, rolling bluegrass fields, punctuated by relicts of “woodland pasture” and partitioned by stone or board fences, the latter usually painted black. Historic residences often sit back from the road at the end of a long drive, presenting a picture of placidity, prosperity and gracious living. Country roads are organic in quality, often app...
متن کاملThe Arches Cluster Mass Function
We have analyzed H and Ks–band images of the Arches cluster obtained using the NIRC2 instrument on Keck with the laser guide star adaptive optics (LGS AO) system. With the help of the LGS AO system, we were able to obtain the deepest ever photometry for this cluster and its neighborhood, and derive the background-subtracted present-day mass function (PDMF) down to 1.3M⊙ for the 5–9 annulus of t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1898
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.7.182.845