In this paper, a microwave-assisted extraction (MAE) method was established for aristolochic acid-I from Aristolochiae Fructus, and the advantage of MAE was evaluated by chromatographic analysis coupled with nephrotoxicity studies. The experimental parameters of MAE for aristolochic acid-I in Aristolochiae Fructus were investigated and MAE was compared with Soxhlet extraction and ultrasound-ass...

Coconut copra from West coast tall variety, cultivated in Kerala, India, was subjected to aqueous and solvent extractions (using n-hexane). Additionally, oil was extracted from the copra in Soxhlet assembly using petroleum ether (b.p. 60-80°C). Physicochemical and phytochemical analyses were conducted for the extracts and the oil, with commercial coconut oil as the experimental control. The phy...

In this project we will discuss about methods of extracting stable features for camera and laser range finder in order to use these features in SLAM. The methods including dot-product feature extractor and line segment feature extractor for laser range finder, corner feature extractor for camera images. The robot platform we work on is the Segway

We propose a strategy for discriminative training of the ivector extractor in speaker recognition. The original i-vector extractor training was based on the maximum-likelihood generative modeling, where the EM algorithm was used. In our approach, the i-vector extractor parameters are numerically optimized to minimize the discriminative cross-entropy error function. Two versions of the i-vector ...

In a recent breakthrough [CZ15], Chattopadhyay and Zuckerman gave an explicit two-source extractor for min-entropy k ≥ log n for some large enough constant C. However, their extractor only outputs one bit. In this paper, we improve the output of the two-source extractor to k, while the error remains n−Ω(1). Our improvement is obtained by giving a better extractor for (q, t, γ) non-oblivious bit...

Bakground: Kaempferia parviflora (zingiberaceae family) rhizomes are used for various pharmacological applications. The present study is aimed putative identification of phyto-constituents in the chloroform extract rhizome and to correlate with bioactivities like antioxidant anti-microbial/fungal activities. Methods: Rhizome was prepared using Soxhlet extractor undergone phytoconstituents analy...