In low-input land-use systems combining timber trees with shade-tolerant understorey crops, it is essential to establish the effects of tree density upon weeds and the contribution of weeds to competition and nutrient cycling. Adjusting tree density may alter weed competition for light, water and nutrients, the storage of nutrients by weeds through growth and the release of nutrients via decomp...

This research was conducted to evaluate the possibility using peanut shells compost as a suitable medium in cultivating ornamental plants. Effect of peanut shells composts on the growth of Viola tricolor and marigold was investigated during seven months. Peat + perlite (with a ratio of 2:1) used as control treatment and peat replaced by 25, 50, 75 and 100 % v/v of peanut shells compost. Plant g...

Beyond traditional security methods, unmanned aerial vehicles (UAVs) have become an important surveillance tool used in security domains to collect the required annotated data. However, collecting annotated data from videos taken by UAVs efficiently, and using these data to build datasets that can be used for learning payoffs or adversary behaviors in game-theoretic approaches and security appl...

Advances in computational game theory have led to several successfully deployed applications in security domains. These gametheoretic approaches and security applications learn game payoff values or adversary behaviors from annotated input data provided by domain experts and practitioners in the field, or collected through experiments with human subjects. Beyond these traditional methods, unman...

A perfume (Latin, perfumare for smoke through) is essentially a cosmetic product to be used on the human body its pleasing scent mask odor and have feeling of freshness. composed fragrances which are aromatic compounds essential oils, solvents fixatives. These chemicals or derived mostly from botanical sources. that usually consists few hundreds fragrance materials remains major source contact ...

Many phytophagous insects and pathogens are highly specific in their host requirements, and will develop sub-optimally or not at all on biotypes of a plant species dissimilar from that on which they are collected. This clearly has major implications for the success of biological control. Chromolaena odorata has a native range stretching from the southern USA to northern Argentina. The species d...

The Viola-Jones face detection algorithm was (and still is) a quite popular face detector. In spite of the numerous face detection techniques that have been recently presented, there are many research works that are still based on the Viola-Jones algorithm because of its simplicity. In this paper, we study the influence of a set of blind pre-processing methods on the face detection rate using t...