Search Results - "Choi, Sun Gyu"

Properties of biocemented, fiber reinforced sand by Choi, Sun-Gyu, Wang, Kejin, Chu, Jian

“…•PVA fibers can be used to improve the engineering properties of biocemented sand.•The use of fibers enhances the MICP process by bridging the pores in…”
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Biocementation for Sand Using an Eggshell as Calcium Source by Choi, Sun-Gyu, Wu, Shifan, Chu, Jian

“…AbstractA method to generate biocementation in sand using the microbially induced carbonate precipitation (MICP) process and calcium source produced from…”
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Mortar crack repair using microbial induced calcite precipitation method by Choi, Sun-Gyu, Wang, Kejin, Wen, Zhiyou, Chu, Jian

“…An experimental investigation has been carried out to repair pre-existing cracks in mortar using the microbiologically induced calcium carbonate precipitation…”
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Sand and silty-sand soil stabilization using bacterial enzyme–induced calcite precipitation (BEICP) by Hoang, Tung, Alleman, James, Cetin, Bora, Ikuma, Kaoru, Choi, Sun-Gyu

“…This paper examines the bio-derived stabilization of sand-only or sand-plus-silt soils using an extracted bacterial enzyme application to achieve induced…”
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Review on geotechnical engineering properties of sands treated by microbially induced calcium carbonate precipitation (MICP) and biopolymers by Choi, Sun-Gyu, Chang, Ilhan, Lee, Minhyeong, Lee, Ju-Hyung, Han, Jin-Tae, Kwon, Tae-Hyuk

“…•Biological soil improvement methods using MICP and biopolymers are reviewed.•Engineering properties of MICP- and biopolymer-treated sands are…”
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Methods for Calcium Carbonate Content Measurement of Biocemented Soils by Choi, Sun-Gyu, Park, Sung-Sik, Wu, Shifan, Chu, Jian

“…AbstractRecently, a new soil improvement method to use a microbially induced calcium carbonate precipitation (MICP) process to generate biocementation in sand…”
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Engineering Properties of Biocementation Coarse- and Fine-Grained Sand Catalyzed By Bacterial Cells and Bacterial Enzyme by Hoang, Tung, Alleman, James, Cetin, Bora, Choi, Sun-Gyu

“…AbstractBiological induced calcite precipitation is a potential method being investigated for improved soil stabilization. In terms of the associated urea…”
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Splitting Tensile Strength of Fiber-Reinforced and Biocemented Sand by Choi, Sun-Gyu, Hoang, Tung, Alleman, E. James, Chu, Jian

“…AbstractThis technical note examines the splitting tensile strength properties of natural sand treated with polyvinyl acetate (PVA) fiber in combination with…”
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Effect of Plant-Induced Calcite Precipitation on the Strength of Sand by Park, Sung-Sik, Choi, Sun-Gyu, Nam, In-Hyun

“…AbstractA plant (jack bean) extract can function as a urease catalyst, similar to those of certain microorganisms such as Sporosarcina pasteurii, which can…”
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Closure to “Engineering Properties of Biocementation Coarse- and Fine-Grained Sand Catalyzed by Bacterial Cells and Bacterial Enzyme” by Tung Hoang, James Alleman, Bora Cetin, and Sun-Gyu Choi by Hoang, Tung, Alleman, James, Cetin, Bora, Choi, Sun-Gyu

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Early-Age Strength of Alkali-Activated Slag Mortar Based on Burned Oyster Shell and Other Chemical Activators by Choi, Sun-Gyu, Park, Sung-Sik, Wang, Kejin

“…AbstractAn alkaline-activated, ground-granulated blast furnace slag (BFS) was used as a binder for mortar prepared using river sand. Sixteen mortar mixes with…”
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Undrained Behavior of Microbially Induced Calcite Precipitated Sand with Polyvinyl Alcohol Fiber by Choi, Sun-Gyu, Hoang, Tung, Park, Sung-Sik

“…Microbially induced calcite precipitation can cement sand and is an environment-friendly alternative to ordinary Portland cement. In this study, clean Ottawa…”
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Prediction models for early diagnosis of actinomycotic osteomyelitis of the jaw using machine learning techniques: a preliminary study by Choi, Sun-Gyu, Lee, Eun-Young, Lee, Ok-Jun, Kim, Somi, Kang, Ji-Yeon, Lim, Jae Seok

“…This study aimed to develop and validate five machine learning models designed to predict actinomycotic osteomyelitis of the jaw. Furthermore, this study…”
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Calcite precipitation by ureolytic plant (Canavalia ensiformis) extracts as effective biomaterials by Nam, In-Hyun, Chon, Chul-Min, Jung, Ka-Young, Choi, Sun-Gyu, Choi, Hyeoksun, Park, Sung-Sik

“…An extract of the indigenous plant jack bean ( Canavalia ensiformis ) was used to produce calcite, an effective biomaterial. The formation of calcite using…”
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Prediction of Shallow Failure on a Slope Using Volumetric Water Content Gradient Characteristics by Suk, Jae-Wook, Jeong, Hyang-Seon, Jung, Min-Su, Kang, Hyo-Sub, Kim, Ho-Jong, Choi, Sun-Gyu

“…Landslides that occur near residential regions are most commonly a result of shallow slope failure, which takes place as a consequence of heavy rainfall during…”
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Treatment of intramuscular lipoma of tongue with enveloped mucosal flap design: a case report and review of the literature by Hur, Sung-Hwi, Lim, Jae-Seok, Choi, Sun-Gyu, Kang, Ji-Yeon, Jung, Ji-Hye, Lee, Eun-Young

“…Background Lipomas are benign soft tissue neoplasms of mature adipose tissue commonly occurring in the trunk or extremities. But, intraoral lipomas are rare…”
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New Evacuation Management Criteria for Potential Landslides Based on Experimental Studies by Choi, Sun-Gyu, Jung, Min-Su, Suk, Jae-Wook, Kim, Ho-Jong, Kang, Hyo-Sub, Jeong, Hyang-Seon, Song, Hyo-Sung

“…This study developed and verified landslide evacuation management criteria through the analysis of surface behaviors (the surface displacement and slope) to…”
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Sustainable Biocement Production via Microbially Induced Calcium Carbonate Precipitation: Use of Limestone and Acetic Acid Derived from Pyrolysis of Lignocellulosic Biomass by Choi, Sun Gyu, Chu, Jian, Brown, Robert C, Wang, Kejin, Wen, Zhiyou

“…Biocement production from microbially induced calcium carbonate precipitation (MICP) is an environmentally friendly approach for construction works, but the…”
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Changes of nutrient contents in the log of Quercus acutissima by cutting period for Lentinula edodes log cultivation by Lee, Hee-Su, Park, Yong-Woo, Lee, Hwa-Yong, Choi, Sun-Gyu, Koo, Chang-Duck

“…This study is to find out an appropriate log cutting period for saprotropic Lentinula edodes log cultivation. Seasonal changes in nutrients in sapwood and cell…”
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Treatment of intramuscular lipoma of tongue with enveloped mucosal flap design: a case report and review of the literature by Hur, Sung-Hwi, Lim, Jae-Seok, Choi, Sun-Gyu, Kang, Ji-Yeon, Jung, Ji-Hye, Lee, Eun-Young

“…Background: Lipomas are benign soft tissue neoplasms of mature adipose tissue commonly occurring in the trunk or extremities. But, intraoral lipomas are rare…”
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