Search

Your search keyword '"Dae Hoon Lee"' showing total 6 results
Start Over Author "Dae Hoon Lee" Publisher elsevier
6 results on '"Dae Hoon Lee"'

1. Plasma jet assisted carbonization and activation of coffee ground waste

Author

Hongjae Kang, Seongil Choi, Jin Hee Lee, Kwan-Tae Kim, Young-Hoon Song, and Dae Hoon Lee

Subjects
Activated carbon, Arc discharge, Coffee ground waste, Gliding arc, Plasma jet, Environmental sciences, GE1-350
Abstract

Activated carbon has been extensively utilized to adsorb pollutants generated by industrial activities. There have been many attempts to efficiently produce activated carbon from spent coffee grounds in the field of environmental technology. In this study, the feasibility of the novel production of activated carbon from coffee ground waste using a plasma jet was evaluated. A rotating gliding arc generator was designed that used an N2 plasma jet for the carbonization process and a CO2 plasma jet for the activation process. It was confirmed that the coffee ground waste could be carbonized and activated by the two plasma jets in the same reactor. The characteristics of the surface morphologies of the activated carbon samples varied depending on the plasma treatment conditions, such as the electric power of the plasma jet and the treatment time. The results implied that the adsorption capacity of the activated carbon could be optimized by regulating the pore size and distribution based on the plasma treatment conditions with regard to the molecular size of the target adsorbate.

Published
2020
Full Text
View/download PDF

2. Contributors

Author

May A. Alsaffar, G. Abdulkareem Alsultan, Khursheed B. Ansari, Jayaseelan Arun, Bamidele V. Ayodele, Muhammad Ayoub, Arghya Banerjee, Chiara Barbiero, Franco Berruti, Cheng K. Cheng, Ajay K. Dalai, Mohd. Danish, Shanmuganantham S. Dawn, Darfizzi Derawi, Duy Khoe Dinh, Chaouki Ghenai, Kannappan P. Gopinath, Guoqing Guan, Saeikh Z. Hassan, Pham Thanh Huyen, Abrar Inayat, Farrukh Jamil, Surachai Karnjanakom, Mohd S. Khan, Zakir Khan, Suwadee Kongparakul, Dae Hoon Lee, Won Gyu Lee, M.S. Mastuli, N. Asikin-Mijan, Rudra N. Mohapatro, Young Sun Mok, Siti I. Mustapa, Sonil Nanda, Salman R. Naqvi, Duc Ba Nguyen, Narasiman Nirmala, Ahmed I. Osman, Regina J. Patinvoh, Biswa R. Patra, Le K.H. Pham, Thi To Nga Phan, Megan X.Y. Ravindran, N. Azira Abdul Razak, Prasert Reubroycharoen, Sunita Routray, Daniel V. Sahayaraj, Nadia Salih, Jumat Salimon, Chanatip Samart, Muhammad Shahbaz, Sivaprasad Shyam, Munusamy Subathra, Ranjita Swain, Rumaisa Tariq, Quang Thang Trinh, and Quang Hung Trinh

Published
2022
Full Text
View/download PDF

4. Contributors

Author

Devendra K. Agrawal, Samad Ahadian, Ajoy Aloysius, P.R. Anil Kumar, Sudha Anjali, Veena B. Antony, S. Arya, Aleksandra Benko, Marco Cícero Bottino, Soumya K. Chandrasekhar, Thomas Chandy, John Lalith Charles Richard, Huizhi Chen, Smitha Chenicheri, Jorge L. Cholula-Díaz, Eva C. Das, Madhusmita Dash, Kevin G. Dsouza, Gregory R.D. Evans, Renjitha Gopurappilly, Lianxian Guo, Gerardo Hernandez-Moreno, Johnson V. John, Maji Jose, Arun Jyothidasan, Ajay Kashi, Gilson Khang, Wooyoup Kim, Manoj Komath, Dae Hoon Lee, Jianqiang Liu, S. Sharareh Mahdavi, João Mano, Shohreh Mashayekhan, Alec McCarthy, David Medina-Cruz, L.P. Merlin Rajesh Lal, Ebrahim Mostafavi, Jahnavi Mudigonda, Eliseu Aldrighi Münchow, Sara Nadine, Anaga Nair, Deepthi S. Rajendran Nair, Rajasekaran Namakkal Soorappan, Himansu Sekhar Nanda, Joshi C. Ouseph, Rakhi Pal, Rakesh Pemmada, Xinsheng Peng, Anitha Radhakrishnan, Abinayaa Rajkumar, Rajesh Ramachandran, Seeram Ramakrishna, null Remya Kommeri, Rajalekshmi Resmi, Prosenjit Saha, Subrata Saha, Ramakrishna Perumal Saravana, Nisha Shankhwar, Chandra P. Sharma, Jeong Eun Song, Isaac Jordão de Souza Araújo, Sreekanth Sreekumaran, Sini Sunny, Ranu Surolia, Puneet Tandon, Nader Tanideh, Alexander M. Tatara, Vicky Subhash Telang, Finosh G. Thankam, Biju B. Thomas, Sabu Thomas, Vinoy Thomas, Saidah Tootla, Linh B. Truong, Aynur Unal, Vineeth M. Vijayan, Liyan Wang, Thomas J. Webster, Alan D. Widgerow, Jingwei Xie, Hui Zhou, Yubin Zhou, Mary E. Ziegler, and Marta Zurek-Mortka

Published
2022
Full Text
View/download PDF

6. A study on comfort of protective clothing for firefighters

Author

Gi-Soo Chung and Dae Hoon Lee

Subjects
Materials science, Moisture, business.industry, Structural engineering, Thermal management of electronic devices and systems, Clothing, Heat stress, Thermal barrier coating, Physical Fatigue, Moisture barrier, medicine, Perspiration, medicine.symptom, Composite material, business
Abstract

Protective clothing for firefighters typically consists of a flame-resistant outer shell and inner layers. The inner layers are generally composed of a moisture barrier and a thermal barrier. When performing a task in a fire the heat and perspiration generated from the body become trapped inside the protective clothing. This heat and moisture result in heat stress and physical fatigue of the firefighter, which hinder their work. Therefore, the system of clothing designs and material layers must be chosen carefully to balance protection and comfort. In this study, three kinds of protective clothing of a three-layer structure were used to determine physiological comfort. Comparisons of the wear trials with the three kinds of layers indicated that the moisture dissipation of A+B2+C was highest, followed by A+B1+C and A+B3+C. The heat dissipation of A+B1+C and A+B2+C were better than A+B3+C. In the protective clothing with A+B3+C, heat and perspiration generated in the exercise remained in the clothing system too long while and caused discomfort.

Published
2005
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results