Microfossil-determined provenance of clay building materials at Burrough Hill Iron Age hill fort, Leicestershire, England

Evaluation of EarthRadar UXO Testing at Fort A.P. Hill

Ionospheric Backscatter Observations at Millstone Hill

Studies of the electron-density, e Iectron and ion temperatures in the F-region were mode by means of ground-based radar observations O? the M; I Istone Hi I I Radar Observato~. A 70-meter parabol i. ontenna directed vertical Iy and o 2. 5-Mw pulse radar operating at 440 Mcps were employed for these measurements which were conducted for periods of 30 hours at approximately weekly intervals thro...

Saraswata Chaudhurui (unc at Chapel Hill)

It has been known since Newey and West (1987) that, in the context of the Generalized Method of Moments (GMM), the test of a hypothesis on the value of the p unknown parameters  (in an overidentified model) should not be directly based on a norm of the sample mean of the moments of interest. In order to maximize the local power of the test, one should instead set the focus on the p moment cond...

Effect of natural land covers on runoff and soil loss at the hill slope scale

Erosion plots were selected for characterizing the effects of main natural factors on runoff and soil loss in a semi-arid region. These erosion plots with an area of 40 m2 are located in the Kakhk experimental watershed in Gonabad County of Khorasan-e Razave Province in the north-eastern Iran. Data acquired from 2008 to 2015 include slope, aspect, soil texture and land covers (canopy...

Probabilistic Hill-climbing

Many learning tasks involve searching through a discrete space of performance elements, seeking an element whose future utility is expected to be high. As the task of nding the global optimum is often intractable, many practical learning systems use simple forms of hill-climbing to nd a locally optimal element. However, hill-climbing can be complicated by the fact that the utility value of a pe...