Greenhouse is a kind of agricultural building structure with glass or plastic roof, where the vegetables or flowers can grow well year round by controlling the inside climatic environment. Fig. 1 shows commercial multispan greenhouses in China. The closed environment of a greenhouse has its own unique requirements, compared with outdoor production. Pests and diseases, and extremes of heat and h...

Poplar belongs to the family Salicaeceae, order Salicales and group Amentiflorae (Dickmann and Stuart, 1983; Eckenwalder, 1996). There are 35 species of poplar currently recognized in the world; out of those, 6 Populus species are indigenous to India– P. alba, P. ciliata, P. euphratica, P. gamblei, P. glauca and P. laurifolia, and during past many clones of exotic species of poplar (P. deltoide...

The need to operate commercial airlines world wide for 24 hours each day inevitably leads to problems of aircrew management: to the stresses of flying an aircraft must be added those of unsocial and irregular hours, time zone (transmeridian), climatic and cultural changes, sleep disturbances, and alterations to circadian rhythms. Fatigue is the main danger, since a decline in performance is lik...

In order to understand the medical geography studies by Boudin, we analyze the differences that set him apart from the acclimatization theories defended during that same historical period by Isidore Geoffroy Saint-Hilaire. Each one of them represents a paradigmatic position in relation to the problem of acclimatization. To understand the difference between these models, we analyze the concept o...

Identification of climatic indices are vital in essence of their ability to characterize different climatic events. We focus on discovery of climatic indices important for Indian summer monsoon from climatic parameters surface pressure and zonal wind velocity. We use climatic network based community detection approach for discovery of climatic indices. New indices depict better correlation with...

Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is the vector of the bacteria that causes citrus greening and is considered one of the world's most important citrus diseases. We examined how host, geographic region, and gender affect the thermal requirements of D. citri. The insects were reared in climatic chambers at constant temperatures of 18, 20, 22, 25, 28, 30, and 32 +/- 1 degrees C, 70 ...

Alaskan salmon stocks have exhibited enormous fluctuations in production during the 20th century. In this paper, we investigate our hypothesis that large-scale salmon-production variability is driven by climatic processes in the Northeast Pacific Ocean. Using a time-series analytical technique known as intervention analysis, we demonstrate that Alaskan salmonids alternate between high and low p...

Requirements engineering (RE) is often seen as an essential facet in software development. It is a vital process before each project starts. In the context of systems engineering, an understanding and application of systems theory and practice is also relevant to RE. The contexts in which RE takes place habitually involve human activities. Therefore, RE needs to be sensitive to how people perce...