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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus…
Weiping Yin, Wenlu Duan, Pu Liu, Ruixue Deng, Yunlai Ren, Shuang Zhao
The flowers of ZhaoFen and RouFurong may contain essential oils with natural aromatic ingredients. In the present work, the chemical compositions of essential oil of Paeonia suffruticosa Andrews from the flowers of ZhaoFen and RouFurong grown only in China we…
Sameer Al-Asheh, Mamdouh Allawzi, Awni Al-Otoom, Hussein Allaboun, Amani Al-Zoubi
A qualitative analysis of supercritical fluid extraction (SFE) of the medically useful compound, sage (Salvia officinalis) is presented in this study. Carbon dioxide was used as a supercritical solvent. Effects of operating conditions such as temperature, pre…
Chuner Cai, Chunxia Li, Shuxian Wu, Qing Wang, Ziye Guo, Peimin He
The purpose of this study was to extract phyco-biliproteins (PBP) from Porphyra yezoensis using an optimized procedure and further establish a large scale process for protein production. According to our previous experiences on the extraction of PBP, salting…
Nelson Boniface, Abdul H. Mruma
Greenstone rocks, which include Banded Iron Formations (BIFs), tuffs, volcanic flows (basalt, andesite and rhyolite), and clastic sedimentary rocks (shale-mudstone, greywacke-sandstone and conglomerate), crop out around Geita Hills and are flanked by granites…
Maroof A. Khalaf, Saber Al-Rousan, Fuad A. Al-Horani
The spatial distribution and community structure of the fishes were studied at different depths and sites along the Jordanian coast in seagrass habitat. A total of 37,034 fishes were counted representing 132 species belonging to 35 families observed during vi…
Santi Pailoplee
In this study, the previously reported isoseismal maps are compiled and used to carefully investigate the macroseismic intensity in terms of the Modified Mercalli Intensity (MMI) scale, based on the engineering ground-motion parameter, as the peak ground acce…
Daigoro Isobe, Tokiharu Ohta, Tomohiro Inoue, Fujio Matsueda
Seismic pounding phenomena, particularly the collision of neighboring buildings under long-period ground motion, are becoming a significant issue in Japan. We focused on a specific apartment structure called the Nuevo Leon buildings in the Tlatelolco district…
Yuli Zaslavsky, Avi Shapira, Marina Gorstein, Nahum Perelman, Galina Ataev, Tatiana Aksinenko
In this study we examined the applicability of the NEHRP soil classification which is based on the V S,30 parameter and the corresponding F a and F v factors to correct acceleration response spectra for local site classification. We calculated acceleration re…
Carlos A. Vargas, Emanuel D. Kastle
Tavares and Azevedo [1] showed in their article, that there existed a correlation between the solar cycles and the earthquake activity. In their study they used both ancient records, as well as recent seismicity between 1950 and 2010. According to them, a pos…
Lijian Qi, ZhaoYin Wang, Xuzhao Wang
The Wenchuan Earthquake caused a large number of avalanches and landslides at different scales. It is extremely significant to evaluate the sediment in the earthquake river basins. Along the 38 km long upper Mianyuan River 196 landslides and avalanches happen…
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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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