Methane is one of the most important gaseous hydrocarbon species for both industrial and environmental reasons. Understanding and quantifying methane emissions to atmosphere is therefore an important element of climate change research. Range-resolved infrared differential absorption Lidar (DIAL) measurements provide the means to map and quantify a wide range of different methane sources. This p...

Infants undergo a series of dynamic changes during the first year of their life, starting at nearly complete dependence upon others for all functions, culminating with the ability to self-transport and rudimentarily converse around the age of 12 months. Previous research indicates an interaction between walking and expressive and receptive language development. Given that phonology underlies ex...

The Slavic affricate represented by <č> is tacitly or explicitly assumed to be // for all Slavic languages. In this paper I revise the affricate inventories of Polish and Czech, showing that the symbol <č> stands for two different sounds: the postalveolar // in Czech and the retroflex // in Polish. This conclusion is supported by the results of an acoustic study of Polish and Czech aff...

Mean snow cover duration was derived for the entire continent of Europe based on the MODIS daily snow cover products MOD10A1 and MYD10A1 for the period from 2000 to 2011. Dates of snow cover start and snow cover melt were also estimated. Polar darkness north of ~62°N and extensive cloud coverage affected the daily snow cover, preventing a direct derivation of the desired parameters. Combining s...

In conventional inventory management, the retailers monitor their own inventory levels and place orders at the distributor when they think it is the appropriate time to reorder. The distributor receives these orders from the retailers, prepares the product for delivery. Similarly, the distributor will place an order at the manufacturer at the

We consider the problem of selling a fixed stock of items over a finite horizon when the buyers arrive following a Poisson process. We obtain a general lower bound on the performance of using a fixed price rather than dynamically adjusting the price. The bound is 63.21% for one unit of inventory, and it improves as the inventory increases. For the one-unit case, we also obtain tight bounds: 89....

A rolling inventory count is an ongoing inventory count done throughout the year. Parts are grouped into counting sections by supplier, part number, and/ or bin locations. Each group is frequently counted throughout the year to maintain a more accurate parts inventory. The goal with a rolling inventory count is to slowly rotating through the entire inventory before completing the annual parts i...