M. Eric Johnson is Director of Tuck’s Glassmeyer/McNamee center for Digital Strategies and Professor of Operations Management at the Tuck School of Business, Dartmouth college. he holds a B.S. in Engineering, a B.S. in Economics, an M.S. in Engineering and Operations research from Penn State University, and a Ph.D. in Engineering from Stanford University. his teaching and research focuses on th...

many organizations use information technology (it) to improve their performance in the business and operations. but, most of the it projects suffer from a high risk of failure when implemented. recently, many studies have been attended on the concept of critical success factors (csfs) in order to affect the rate of success, but a little effort has been focused on developing strong models to fac...

objective: citrus (citrus reticulata) is one of the most important horticultural plant in iran and weed management throuth ecological methods such as cover crop is a proper option in orchard management practices. methods: the experiment was designed as a split plot on the base of complete randomized block design with four replications in mazandaran province, sari, voushka county from 2010 to 20...

introduction: with increasing production of health information, information technologies have been used for better management and usage of such data. this enormous increase in gathering and storing of information and widespread accessibility also concerns individuals regarding privacy and security of information. this research is concerned with this issue due to decisions on establishing indivi...

Alfalfa losses and quality changes begin as soon as the mower contacts the standing crop and these losses continue until the preserved feed is consumed. Harvest losses are caused by plant respiration, rain, and mechanical damage by equipment. Loss from plant respiration is relatively small when the crop is dried quickly under good drying conditions, but under slow drying conditions it can be up...

With changing climatic conditions the balance in agricultural resources of semi-arid tropics are largely affected. This has led to impacts on the socio economic condition of resource poor cultivators / farmers. Technological advances in Wireless Sensor Networks (WSN) have achieved the capability to seamlessly gather real-time agro-meteorological and environmental data. In order to address the p...

To support food security, information products about the actual cropping area per crop type, the current status of agricultural production and estimated yields, as well as the sustainability of the agricultural management are necessary. Based on this information, well-targeted land management decisions can be made. Remote sensing is in a unique position to contribute to this task as it is globa...

Weed emergence timing: a new tool for managing weeds in crop fi elds The success of integrated weed management relies on matching control strategies to the specifi c weed problem in a fi eld. Managers must know not only which weed species (and how many) are present in a fi eld; they also must understand the distribution and development stages of these weeds throughout the fi eld. Weed control r...