A brief history of development of the 1985 Hargreaves equation and its comparison to evapotranspiration ~ET! predicted by the Food and Agricultural Organization of the United Nations ~FAO! Penman-Monteith method are described to provide background and information helpful in selecting an appropriate reference ET equation under various data situations. Early efforts in irrigation water requiremen...

Estimated daily reference crop evapotranspiration (ETo) is normally used to determine the water requirement of crops using the crop factor method. Many ETo estimation methods have been developed for different types of climatic data, and the accuracy of these methods varies with climatic conditions. In this study, pair−wise comparisons were made between daily ETo estimated from eight different E...

As a key hydrological parameter, daily reference evapotranspiration (ETo) determines the accuracy of the hydrological number of the crop, and, consequently, the regional optimization disposition of water resources. At present, the main methods for ETo estimation are the Penman-Monteith (PM) equation and its modified formula, both of which are based on climatic factors such as temperature, radia...

It is well known that lesions affecting the trigeminal nerve may lead to the development ofneurotrophic keratitis (Magendie, I 824), but the incidence and the extent of the keratitis seen by biomicroscopic examination of the cornea, and in particular its effect upon visual acuity, are not well documented. The present study was undertaken to investigate these aspects of keratitis, in corneae ren...

The natural language sentence generation program Penman provides computational technology for generating English sentences and paragraphs, starting with input specifications of a non-linguistic kind. The research goals underlying Penman are threefold: to provide a useful and theoretically motivated resource for other research and development groups and the computational community at large, to p...

References 1. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a case report. J Med Case Rep. 2009;3:9324. 2. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a ...