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NONUNIQUE COINCIDENCE POINT THEOREMS FOR ĆIRIĆ TYPE MAPPINGS
Guan, Feng,Kang, Shin Min,Li, Jinsong,Liu, Zeqing The Kangwon-Kyungki Mathematical Society 2007 한국수학논문집 Vol.15 No.1
A few existence results of nonunique coincidence points for some kinds of $\acute{C}$iri$\acute{c}$ type mappings in metric and pseudocompact Tichonov spaces, respectively, are proved. The results presented in this paper extend some known results in the literature.
The Effect of Functional MA Film Packaging on Storage of Mature-Red Tomato
Guan, Jun-Feng,Park, Hyung-Woo,Kim, Yoon-Ho,Kim, Sang-Hee,Park, Hye-Ran,Lee, Seon-Ah,Yoon, Ji-Yoon Korea Society of Packaging Science and Technology 2005 한국포장학회지 Vol.11 No.2
토마토(Pinky 종)를 기능성 MA필름(두께 0.03, 0.06mm)으로 포장하여 0, 5, $15^{\circ}C$에 저장하면서 품질 변화를 조사하였다. 저장 29일에 MA포장재 내의 $CO_2$, $O_2$농도는 각각 $4.21{\sim}8.17%$, $9.78{\sim}14.45%$였고, 전반적으로 MA 포장구에서 연화와 색택의 변화가 억제되었다. 저장 29일에 MA포장(0.03두께)을 한 후 $5^{\circ}C$에 저장한 토마토의 경도(0.49 kgf)가 가장 높았고, MA 포장(0.06두께)을 한 후 $0^{\circ}C$에 저장한 토마토가 최소 라이코펜 함량(6.08mg/100g)을 보였다. 토마토의 품질 유지를 위한 최적 조건은 MA 장을 하여 $0^{\circ}C$에 저장하는 것이 바람직한 것으로 나타났으며 필름 두께간에는 유의적인 차이가 나타나지 않았다. 또한 MA 포장재 내의 최적 가스 조성은 $CO_2$는 $4.2%{\sim}5.6%$, $O_2$는 $14.3%{\sim}14.5%$로 나타났다. The mature-red tomato fruits (cv. Pinky world) were packaged with functional modified atmosphere (MA) film (0.03, 0.06 mm) and stored at 0, 5, $15^{\circ}C$. The results showed that the concentrations of $CO_2$ and $O_2$ inside MA package were about $4.21{\sim}8.17%$ and $9.78{\sim}14.45%$ under steady state during storage 29 days at 0, $5^{\circ}C$, respectively. The MA packaging(MAP) suppressed the fruits softening and the color change. The minimum lycopene content and maximum firmness were separately observed in fruits packaged with MA film (0.03 mm) at $5^{\circ}C$ storage and film(0.06 mm) at $0^{\circ}C$, which the lycopene content 6.08 mg/100 g, and firmness was 0.49 Kgf at 29 th day storage. The optimal conditions to keep high quality of tomato fruits were obtained by MAP during storage at $0^{\circ}C$ for 29 days, independently of the film thickness, in which the adequate gas composition was $CO_2$ at $4.2%{\sim}5.6%$, $O_2$ at $14.3%{\sim}14.5%$, respectively.
Guan Feng,Ding Youming,He Yikang,Li Lu,Yang Xinyu,Wang Changhua,Hu Mingbai 대한약리학회 2022 The Korean Journal of Physiology & Pharmacology Vol.26 No.6
It has been demonstrated that APPL1 (adaptor protein, phosphotyrosine interacting with PH domain and leucine zipper 1) is involved in the regulation of several growth-related signaling pathways and thus closely associated with the development and progression of some cancers. Diallyl trisulfide (DAT), a garlic-derived bioactive compound, exerts selective cytotoxicity to various human cancer cells through interfering with pro-survival signaling pathways. However, whether and how DAT affects survival of human hepatocellular carcinoma (HCC) cells remain unclear. Herein, we tested the hypothesis of the involvement of APPL1 in DAT-induced cytotoxicity in HCC HepG2 cells. We found that Lys 63 (K63)-linked polyubiquitination of APPL1 was significantly decreased whereas phosphorylation of APPL1 at serine residues remained unchanged in DAT-treated HepG2 cells. Compared with wild-type APPL1, overexpression of APPL1 K63R mutant dramatically increased cell apoptosis and mitigated cell survival, along with a reduction of phosphorylation of STAT3, Akt, and Erk1/2. In addition, DAT administration markedly reduced protein levels of intracellular TNF receptor-associated factor 6 (TRAF6). Genetic inhibition of TRAF6 decreased K63-linked polyubiquitination of APPL1. Moreover, the cytotoxicity impacts of DAT on HepG2 cells were greatly attenuated by overexpression of wild-type APPL1. Taken together, these results suggest that APPL1 polyubiquitination probably mediates the inhibitory effects of DAT on survival of HepG2 cells by modulating STAT3, Akt, and Erk1/2 pathways.
The Effect of Functional MA Film Packaging on Storage of Mature-Red Tomato
Jun Feng Guan,Hyung Woo Park,Yoon Ho Kim,Sang Hee Kim,Hye Ran Park,Seon Ah Lee,Ji Yoon Yoon 한국포장학회 2005 한국포장학회지 Vol.11 No.2
토마토(Pinky 종)를 기능성 MA필름(두께 0.03, 0.06mm)으로 포장하여 0, 5, 15℃에 저장하면서 품질 변화를 조사하였다. 저장 29일에 MA포장재 내의 CO2, O2농도는 각각 4.21~8.17%, 9.78~14.45%였고, 전반적으로 MA 포장구에서 연화와 색택의 변화가 억제되었다. 저장 29일에 MA포장(0.03두께)을 한 후 5℃에 저장한 토마토의 경도(0.49 kgf)가 가장 높았고, MA 포장(0.06두께)을 한 후 0℃에 저장한 토마토가 최소 라이코펜 함량(6.08mg/100g)을 보였다. 토마토의 품질 유지를 위한 최적 조건은 MA 장을 하여 0℃에 저장하는 것이 바람직한 것으로 나타났으며 필름 두께간에는 유의적인 차이가 나타나지 않았다. 또한 MA 포장재 내의 최적 가스 조성은 CO2는 4.2%~5.6%, O2는 14.3%~14.5%로 나타났다. The mature-red tomato fruits (cv. Pinky world) were packaged with functional modified atmosphere (MA) film (0.03, 0.06 mm) and stored at 0, 5, 15℃. The results showed that the concentrations of CO2 and O2 inside MA package were about 4.21~8.17% and 9.78~14.45% under steady state during storage 29 days at 0, 5℃, respectively. The MA packaging(MAP) suppressed the fruits softening and the color change. The minimum lycopene content and maximum firmness were separately observed in fruits packaged with MA film (0.03 mm) at 5℃ storage and film(0.06 mm) at 0℃, which the lycopene content 6.08 mg/100 g, and firmness was 0.49 Kgf at 29 th day storage. The optimal conditions to keep high quality of tomato fruits were obtained by MAP during storage at 0℃ for 29 days, independently of the film thickness, in which the adequate gas composition was CO2 at 4.2%~5.6%, O2 at 14.3%~14.5%, respectively.
3D Game Development For Dementia Prevention
하관봉(Guan-Feng He),강선경(Sun-Kyung Kang),최욱호(Wuk-Ho Choi),정성태(Sung-Tae Jung) 한국컴퓨터정보학회 2011 한국컴퓨터정보학회 학술발표논문집 Vol.19 No.1
This paper proposes to use gesture recognition technology to develop 3D game for prevention of dementia. In the game, the user can choose camera mode or mouse mode to play game. In the game design, We focused on the characteristics of dementia, Developed four types of games, Including Memory training game, Math game, Logical training game and 3D visual sense training game. Each type of game is composed by a number of small games. Common feature of all the game is random, This ensures that when user play games, Basically the game will not have the same situation. For the older elderly, If can take 10 minutes a day to play the game and has always insisted on playing, For dementia preventive have a positive effect.
Geometric Optimization of a Mathematical Model of Radiofrequency Ablation in Hepatic Carcinoma
Wang, Kai-Feng,Pan, Wei,Wang, Fei,Wang, Gao-Feng,Madhava, Pai,Pan, Hong-Ming,Kong, De-Xing,Liu, Xiang-Guan Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.10
Radio frequency ablation (RFA) is an effective means of achieving local control of liver cancer. It is a particularly suitable mode of therapy for small and favorably located tumors. However, local progression rates are substantially higher for large tumors (>3.0 cm). In the current study, we report on a mathematical model based on geometric optimization to treat large liver tumors. A database of mathematical models relevant to the configuration of liver cancer was also established. The specific placement of electrodes and the frequency of ablation were also optimized. In addition, three types of liver cancer lesion were simulated by computer guidance incorporating mathematical models. This approach can be expected to provide a more effective and rationale mechanism for employing RFA in the therapy of hepatic carcinoma.
치매 예방을 위한 제스처 인식 기반 3D 기능성 게임 개발
하관봉(He, Guan-Feng),박진웅(Park, Jin-Woong),강선경(Kang, Sun-Kyung),정성태(Jung, Sung-Tae) 한국게임학회 2011 한국게임학회 논문지 Vol.11 No.6
본 논문은 치매 예방을 위한 제스처 인식 기반 3D기능성 게임을 제안한다. 제안된 기능성 게임은 전신 제스처 인식을 이용함으로써 사용자의 두뇌 사용능력과 신체활동성을 증가시켜 치매 예방의 효과를 향상시킬 수 있도록 하였다. 기존에 개발된 제스처 인식 기술에 사용된 카메라들은 인식률과 가동영역이 한계적이다. 보다 안정적인 전신 제스처인식을 위해 3D depth 카메라로부터 사용자를 인식하고 사용자의 관절 정보를 획득하였으며 관절의 움직임을 분석하여 전신 제스처를 인식하였다. 게임 콘텐츠로는 치매의 대표적인 원인인 뇌세포의 퇴화에 초점을 맞춰 기억력, 논리력, 산술능력, 공간인지능력 등을 훈련할 수 있도록 구성하였다. 사용자 별로 게임 결과를 저장하고 분석하여 인지능력 향상 정도를 측정할 수 있도록 하였다. In this paper, we propose gesture recognition based 3D Serious Games to prevent dementia. These games are designed to enhance the effect of preventing dementia by helping increase brain usage and physical activities of users by the entire body gesture recognition. The existing cameras used for gesture recognition technology are limited in terms of recognition ratio and operation range. For more stable recognition of the body gestures, we recognized users with a 3D depth camera, obtained joint data of users, and analyzed joint motions to recognize gestures of the body. Game contents were designed to practice memory, reasoning, calculation, and spatial recognition focusing on the atrophy of brain cells as a major cause of dementia. Game results of each user were saved and analyzed to measure how their recognition skills improved.
Dynamic Path Planning Based on Fuzzy and Behavior Control Idea
Lei Yanmin,Xing Xiaoxue,Feng Zhibin,Guan Xiuli,Du Limin 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.12
In order to solve dynamic path planning problem of multi-robot systems in unknown dynamic environment, a kind of method based on fuzzy and behavior control idea was proposed in this paper. This method designs two fuzzy controllers, which are danger degree fuzzy controller and velocity fuzzy controller. They took fully into account the position and the velocity of the obstacle and the azimuth of the target. Fuzzy rules were designed based on behavior control idea and which reflected move-to-goal behavior, avoid-obstacle behavior and follow-obstacle behavior. The experimental results show that the proposed method is feasible and valid and is suitable for the dynamic and complicated environment in particularly.