The Thermogravimetric Behaviour of Metal Diethyldithiocarbamates at reduced pressure

Pengajian termogravimetri terhadap lapan dietilditiokarbamat dari Cu(II), Ni(II), Zn(II), Pb(II), Cd(If), Cr(III), Fe(IfI) dan Co(III) pada tekanan yang rendah (0.2 torr) menunjukkan keruapan yang lengkap bagi semua sebatian kelat ini pada suhu yang kurang dari 250°C. Di samping itu, kelat-kelat dari logam duavalen adalah le'bih meruap berbanding dengan kelat-kelat dari logam tigavalen. Sebaliknya, pada tekanan udara biasa dan disekitar gas nitrogen yang dinamik, hanya dietilditiokarbamat dari Ni(If), Zn(II) dan Co(III) mepejalwap dengan sempurna manakala lain-lain kelat mepejalwap dengan tidak lengkap serta mengalami penguraian yang jelas

Protozoan Free Colonies of Lepidoptera

A method for the establishment and maintenance of colonies of Lepidoptera which are free of contamination with protozoa is provided. The colonies consists of individuals capable of breeding and producing viable, noncontaminated butterflies

Green Gasification Technology for Wet Biomass

The world now is facing two energy related threats which are lack of sustainable, secure and affordable energy supplies and the environmental damage acquired in producing and consuming ever-increasing amount of energy. In the first decade of the twenty-first century, increasing energy prices reminds us that an affordable energy plays an important role in economic growth and human development. To overcome the abovementioned problem, we cannot continue much longer to consume finite reserves of fossil fuels, the use of which contributes to global warming. Preferably, the world should move towards more sustainable energy sources such as wind energy, solar energy and biomass. However, the abovementioned challenges may not be met solely by introduction of sustainable energy forms. We also need to use energy more efficiently. Developing and introducing more efficient energy conversion technologies is therefore important, for fossil fuels as well as renewable fuels. This assignment addresses the question how biomass may be used more efficiently and economically than it is being used today. Wider use of biomass, a clean and renewable feedstock may extend the lifetime of our fossil fuels resources and alleviate global warming problems. Another advantage of using of biomass as a source of energy is to make developed countries less interdependent on oil-exporting countries, and thereby reduce political tension. Furthermore, the economies of agricultural regions growing energy crops benefit as new jobs are created.Keywords: energy, gasification, sustainable, wet biomas

A Comment on the Implementation of the Ziggurat Method

We show that the short period of the uniform random number generator in the published implementation of Marsaglia and Tsang's Ziggurat method for generating random deviates can lead to poor distributions. Changing the uniform random number generator used in its implementation fixes this issue.

Superpixel-based automatic segmentation of villi in confocal endomicroscopy

Confocal Laser Endomicroscopy (CLE) is a technique permitting on-site microscopy of the gastrointestinal mucosa after the application of a fluorescent agent, allowing the evaluation of mucosa alterations. These are used as features by skilled technicians to stage the severity of multiple diseases, celiac disease or irritable bowel syndrome among the others. We present an automatic method for villi detection from confocal endoscopy images, whose appearance changes with mucosal alterations. Superpixel segmentation, a well-known technique originating from computer vision, is used to identify and cluster together pixels belonging to uniform regions. Each image in the dataset is analyzed in a multiscale fashion (scale 1, 0.5 and 0.25). From each superpixel, 37 features are extracted at multiple image scales. Each superpixel is classified using a random forest, and a post-processing step is performed to refine the final output. Results in the test set (70 images, 30870 superpixels) show 85.87% accuracy, 92.88% sensitivity, 76.99% specificity in the superpixel space, and 86.36% of accuracy and 87.44% Dice score in the pixel domain. © 2016 IEEE