Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Daeun Yu"'
Autor:
Daeun Yu, Sun-Yong Choi
Publikováno v:
Axioms, Vol 12, Iss 6, p 538 (2023)
Stock price prediction is a significant area of research in finance that has been ongoing for a long time. Several mathematical models have been utilized in this field to predict stock prices. However, recently, machine learning techniques have demon
Externí odkaz:
https://doaj.org/article/65f1a3269606462b97d256a1359d841d
Publikováno v:
Diversity, Vol 14, Iss 5, p 414 (2022)
Amphibians are the most threatened vertebrate group on earth, and one of the reasons for their decline is habitat loss. While some populations have persisted in agricultural wetlands such as rice paddies, the current anthropisation of landscapes is d
Externí odkaz:
https://doaj.org/article/39ee90d122db4a3dbe8526ac78eab96d
Autor:
In-Sun Jung, Dongmin Im, Hyoyoung Lee, Hyangsook Lee, Daeun Yu, Yun Dongjin, Mokwon Kim, Hyuk Jae Kwon, Do-Young Kim, Jaeduck Jang, Jung-Hwa Kim, Hyunju An, Sunjung Byun
Publikováno v:
Journal of Materials Chemistry A. 7:10397-10404
A graphene-based porous electrode for a lithium–oxygen (Li–O2) battery is investigated for use in next generation energy storage systems. The porosity of the cathode electrode in Li–O2 batteries is a key factor in increasing their oxygen diffus
Publikováno v:
International Journal of Distributed Sensor Networks, Vol 10 (2014)
In order to construct an efficient wireless sensor system, it is necessary to increase the lifetime of its battery-operated sensor nodes. To this end, a wireless body sensor system adopts a transmission power control (TPC) mechanism. However, existin
Externí odkaz:
https://doaj.org/article/2e55258db54e4229b2b02c623cd59816
Publikováno v:
International Journal of Future Generation Communication and Networking. 9:257-268
The battery of a sensor node in a wireless body sensor network is small, and therefore has a short lifetime. In consequence, intensive research is being conducted on schemes to efficiently utilize the energy of a sensor node. This paper proposes a ne
Publikováno v:
Journal of Internet Computing and Services. 16:11-17
In the general transmission power control model that is used for wearable sensor systems, if RSSI value gets out of the Target RSSI Margin, then the sink node finds new transmission power by using TPC(Transmission Power Control) Algorithm. At this ti
Publikováno v:
International Journal of Multimedia and Ubiquitous Engineering. 9:197-208
With advancements in network technologies, network virtualization has been proposed to efficiently provide a large number of services and flexible management by utilizing limited resources over existing networks as much as possible. Network virtualiz
Publikováno v:
Advanced Science and Technology Letters.
In this paper, we introduce the power saving techniques which can be used in the wireless body sensor network systems. In the wireless body sensor network systems, there are representatively two power saving techniques: transmission power control and
Publikováno v:
Advanced Science and Technology Letters.
Much attention has been paid to network virtualization since it can better utilize network resources and provide easier management than conventional networks. Virtual machines created by virtualization provide services, and a network flow passes thro
Autor:
JaeGwan Chung, Hyukju Kwon, Daeun Yu, Seong Heon Kim, Yongsu Kim, Sung Heo, Dong-Jin Yun, Jung-Hwa Kim, Minsu Seol, Yongnam Ham
Publikováno v:
Nanotechnology. 27:165706
In most solution-processed organic devices, a poly(3,4-ethylenedioxythiophene) (PEDOT) polymerized with poly(4-styrenesulfonate) (PSS) film is inevitably affected by various conditions during the subsequent solution-coating processes. To investigate