Maejo International Journal of Science and Technology最新文献

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Cultivation options for indoor and outdoor growth of Chaetoceros gracilis with airlift photobioreactors 气升式光生物反应器在室内和室外培养毛羽毛藻的选择

IF 0.7 4区综合性期刊

Maejo International Journal of Science and Technology Pub Date : 2014-04-01 DOI: 10.14456/MIJST.2014.9

P. Pavasant, Watadta Ritcharoen, Puchong Sriouam, Piyanate Nakseedee, Patthama Sang, S. Powtongsook, Kunn Kungvansaichol

{"title":"Cultivation options for indoor and outdoor growth of Chaetoceros gracilis with airlift photobioreactors","authors":"P. Pavasant, Watadta Ritcharoen, Puchong Sriouam, Piyanate Nakseedee, Patthama Sang, S. Powtongsook, Kunn Kungvansaichol","doi":"10.14456/MIJST.2014.9","DOIUrl":"https://doi.org/10.14456/MIJST.2014.9","url":null,"abstract":"Various configurations and modes of airlift photobioreactors were examined in the cultivation of Chaetoceros gracilis. Internal loop and external loop airlifts were cultivated in a batch mode in a controlled indoor environment. The external loop system provided a better performance than the internal loop system due to better light exposure. A continuous operation was conducted in an internal loop airlift photobioreactors-inseries. This was designed to minimise the effect of light blocking due to overgrown cells as the high-density culture was, in this configuration, only limited to the last airlift column in the series. Outdoor large-scale operation was conducted in a flat-panel airlift photobioreactor. Due to uneven light availability, the outdoor culture could not perform as well as the indoor one in terms of growth rate. Among the four systems investigated, the continuous culture in airlift photobioreactors-in-series provided the best performance with the highest cell density of 12.12 × 10 cells mL. Cost analysis based on the maximum number of reactors that can be installed in one square metre indicates that the indoor system requires lowest operating cost per unit cultivation area, whereas the outdoor system provides highest profit as a result of the inherited large productivity.","PeriodicalId":49898,"journal":{"name":"Maejo International Journal of Science and Technology","volume":"31 1","pages":"100-113"},"PeriodicalIF":0.7,"publicationDate":"2014-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80797081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Statistical optimisation of culture conditions for biocellulose production by Komagataeibacter sp. PAP1 using soya bean whey 利用大豆乳清生产生物纤维素的Komagataeibacter sp. PAP1培养条件的统计优化

IF 0.7 4区综合性期刊

Maejo International Journal of Science and Technology Pub Date : 2014-01-01 DOI: 10.14456/MIJST.2014.1

A. Suwanposri, P. Yukphan, Yuzo Yamada, D. Ochaikul

引用次数: 30

Tiger hair morphology and its variations for wildlife forensic investigation 虎毛形态及其变异在野生动物法医调查中的应用

IF 0.7 4区综合性期刊

Maejo International Journal of Science and Technology Pub Date : 2013-11-01 DOI: 10.14456/MIJST.2013.36

Thitika Kitpipit, Phuvadol Thanakiatkrai

{"title":"Tiger hair morphology and its variations for wildlife forensic investigation","authors":"Thitika Kitpipit, Phuvadol Thanakiatkrai","doi":"10.14456/MIJST.2013.36","DOIUrl":"https://doi.org/10.14456/MIJST.2013.36","url":null,"abstract":"Tiger population has dramatically decreased due to illegal consumption and commercialisation of their body parts. Frequently, hair samples are the only evidence found in the crime scene. Thus, they play an important role in species identification for wildlife forensic investigation. In this study, we provide the first in-depth report on a variety of qualitative and quantitative characteristics of tiger guard hairs (24 hairs per individual from four individuals). The proposed method could reduce subjectivity of expert opinions on species identification based on hair morphology. Variations in 23 hair morphological characteristics were quantified at three levels: hair section, body region, and intra-species. The results indicate statistically significant variations in most morphological characteristics in all levels. Intra-species variations of four variables, namely hair length, hair index, scale separation and scale pattern, were low. Therefore, identification of tiger hairs using these multiple features in combination with other characteristics with high inter-species variations (e.g. medulla type) should bring about objective and accurate tiger hair identification. The method used should serve as a guideline and be further applied to other species to establish a wildlife hair morphology database. Statistical models could then be constructed to distinguish species and provide evidential values in terms of likelihood ratios.","PeriodicalId":49898,"journal":{"name":"Maejo International Journal of Science and Technology","volume":"35 1","pages":"433-443"},"PeriodicalIF":0.7,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80808125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3