King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology最新文献_第7页

Design of a Stacked-layer Tubular Photobioreactor for Microalgae Cultivation 微藻培养叠层管状光生物反应器的设计

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-08-11 DOI: 10.14416/j.ijast.2015.07.004

Varit Kunopagarnwong, T. Srinophakun, Theerawat Sritaweewat, Y. Chisti

{"title":"Design of a Stacked-layer Tubular Photobioreactor for Microalgae Cultivation","authors":"Varit Kunopagarnwong, T. Srinophakun, Theerawat Sritaweewat, Y. Chisti","doi":"10.14416/j.ijast.2015.07.004","DOIUrl":"https://doi.org/10.14416/j.ijast.2015.07.004","url":null,"abstract":"A tubular photobioreactor is one of the most effective methods of microalgae cultivation because of the high solar receiver area and better biomass productivity. However, the pressure drop along the tubular solar receiver induces a relatively high dead zone. An optimal design is necessary to maximize biomass productivity. In this article, the proposed model can reduce the dead zone by up to 15% under a pressure drop of 106 Pa. To optimize the area requirement, three configurations with different stacking angles of 30, 45, and 60°, are simulated. The optimal 60° stacked-layer model is then connected to an airlift device to demonstrate the complete system. This model can circulate seawater inside the reactor at an average velocity of 0.188 m/s with 0.07 m/s of air inlet velocity. The radial flow can force the microalgae from the inner part of the tube to the outer part and back again throughout the entire stacked section. This turbulence will enhance biomass productivity because the microalgae are moved from the darker interior of the tube to the periphery where they are exposed to solar radiation. The optimal stacked-layer tubular photobioreactor has a slope of 60° with four stacked layers. This modification promotes the circulation of microalgae in both axial and radial directions.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116918526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and Identification of a Cellulase-producing Bacillus sp. Strain BR0302 from Thai Coastal Wetland Soil 泰国滨海湿地土壤产纤维素酶芽孢杆菌BR0302的分离与鉴定

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-07-24 DOI: 10.14416/j.ijast.2015.07.002

Aiya Chantarasiri, P. Boontanom, Nattawut Yensaysuk, Puwanat Ajwichai

引用次数: 8

Evaluation of a Low-cost Eye Tracking System for Computer Input 一种用于计算机输入的低成本眼动追踪系统的评估

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-07-17 DOI: 10.14416/j.ijast.2015.07.001

Veerawan Janthanasub, P. Meesad

{"title":"Evaluation of a Low-cost Eye Tracking System for Computer Input","authors":"Veerawan Janthanasub, P. Meesad","doi":"10.14416/j.ijast.2015.07.001","DOIUrl":"https://doi.org/10.14416/j.ijast.2015.07.001","url":null,"abstract":"Eye tracking technology has become one of the most popular techniques within the human and computer interaction (HCI) era, this is especially important research for people which have difficulty with speech and movement disabilities. The primary function of this technology is based on a device that tracks the movement of the eye to identify a position or scan a display. Suitable devices for eye movement can then be integrated in concordance with the requirements of the organization. Currently, eye tracking devices are becoming increasingly cheaper which make them an interesting resource for research. Although numerous studies have been conducted involving applications of eye tracking with a low-cost device, few studies have compared the actual eye tracking systems themselves. This paper empirically evaluated the performance of three independent low-cost eye tracking devices, Gazepoint’s GP3, EyeTribe, and DIY (Do-It-Yourselt). The performance evaluation used a multi-directional point-select task based on visual searching and selection to change the ground colour of a circular menu conforming to ISO 9241-9 standards for computer pointing devices. Results indicated that the spatial accuracy and speed were a good reflection of targeted tracking of errors, completion time and throughput. Consequently, the experiment with the target task showed that all devices can be a potentially valuable resource for human computer interaction research. Additionally, this basic result will be used to develop an advanced system for Thai text entry to aid communication for handicapped users.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"16 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113935119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Optimization of Hydrogen Production from Pickle Bamboo Shoot Wastewater by Rhodopseudomonas palustris TN1 古红假单胞菌TN1在酸菜笋废水中产氢的优化

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-07-16 DOI: 10.14416/j.ijast.2015.06.004

Wiboon Riansa-ngawong, Wanticha Savedboworn, Maneewan Suwansa-ard

{"title":"Optimization of Hydrogen Production from Pickle Bamboo Shoot Wastewater by Rhodopseudomonas palustris TN1","authors":"Wiboon Riansa-ngawong, Wanticha Savedboworn, Maneewan Suwansa-ard","doi":"10.14416/j.ijast.2015.06.004","DOIUrl":"https://doi.org/10.14416/j.ijast.2015.06.004","url":null,"abstract":"A pickle bamboo shoot is a top marketing product in the East of Thailand, especially Prachinburi province. Vinegar (acetic acid) and sea salt (NaCl) are added during pickle bamboo shoot productions to preserve the color and texture. These high acidity (pH 3-4), high salt concentration (6.0%) and dark-brown color of the pickle bamboo shoot wastewater (PBSW) lead to the difficulty for bioremediation of PBSW treatment. Rhodopseudomonas palustris TN1 was capable of surviving in 3.0% (w v -1 ) NaCl medium and produce hydrogen under anaerobic-light condition. The Aim of this study is to investigate the ability of biohydrogen production in the PBSW by TN1, the effect of initial pH (6.5, 7.0 and 7.5) and light intensities (1,000, 3,000 and 5,000 lux) were performed under anaerobic-light condition. The hydrogen content in biogas using wastewater as the medium was found to be 98.51%. The optimal condition for the highest hydrogen production was pH 7.36 and light intensity of 3,200 lux at room temperature (30±2oC) giving hydrogen 73.57±5.29 mL L -1 and dry cell weight (DCW) of 5.36±0.51 g L -1 within 96 hrs. In conclusion, TN1 can consume the PBSW as a carbon source to produce hydrogen.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116674649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Assessment of Locust Bean Pod Extract for Foundry Core Making 刺槐豆荚提取物在铸造芯材中的应用评价

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-06-16 DOI: 10.14416/j.ijast.2015.06.003

O. A. Oyelaran, J. K. Abidoye, Y. Tudunwada

引用次数: 0

Turbo Codes: Analysis and Design Turbo代码:分析与设计

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-06-12 DOI: 10.14416/j.ijast.2015.06.002

M. Al-Rawi, M. Al-Rawi

引用次数: 1

Comparative Study of in Vitro and in Vivo Inflorescence of Feathered Amaranth 羽毛苋菜离体和体内花序的比较研究

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-06-12 DOI: 10.14416/j.ijast.2015.06.001

K. Bodhipadma, S. Noichinda, Chitlada Yompakdee, Wannaporn Tamtimdee, Utorn Chikhuntod, D. Leung

引用次数: 3

Integrating Reliability Centered Maintenance with Statistical Forecasting Techniques and Cost Engineering on Machine in Casting Plant of Automotive Parts 汽车零部件铸造车间以可靠性为中心的维修与统计预测技术、成本工程相结合

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-04-28 DOI: 10.14416/J.IJAST.2015.04.002

S. Butdee, Tadpon Kullawong

引用次数: 0

Mechanical and Tribological Properties of Graphene Modified Epoxy Composites 石墨烯改性环氧复合材料的力学和摩擦学性能

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-04-22 DOI: 10.14416/J.IJAST.2015.04.001

N. Khun, He Zhang, L. H. Lim, Jinglei Yang

引用次数: 22

Efficient and Flexible Technology for Binder Roving Manufacturing 高效灵活的粘结剂粗纱制造技术

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2015-04-22 DOI: 10.14416/J.IJAST.2015.03.002

J. Mack, P. Mitschang

引用次数: 3