정식 시기와 적심 횟수가 화단국화의 생장과 개화에 미치는 영향

姚婧超, 정해준, 김동찬, 이진희, 권민훈, 서병기 배재대학교 자연과학연구소 2013 自然科學論文集 Vol.24 No.1

This study was conducted to investigate optimum planting date and pinching times on the growth and flowering of garden chrysanthemum(Dendranthema grandiflorum Ramat.). 3 lines of garden mums were planted on May 16, June 13 and July 11 respectively. As planting date was delayed, all the 3 lines' plant height and plant width was reduced. 09-19-49 line got the biggest plant height and width, followed by 09-11-37 line. And 08-166-02 line was the smallest. In different planting times, the experiment group of May 16 and June 13 got the biggest plant height, plant width and stem diameter. However, in the experiment group of May 16, most of the plants got flattened. The experiment group of June 13 got the best ornamental value, and the ornamental value was reduced in the experiment group of July 11 by the short vegetative growth. 09-19-49 line got the most flowers, while in different planting time, the experiment group of May 16 got the most flowers. 09-11-37 line got the biggest flower diameter. 09-11-37 line and 09-09-51 line were planted in the containers on the rooftop. Each groups were pinched by 1, 2 and 3 times on July 2, July 26 and Aug 16 respectively. There was no effect on plant height, plant width, and stem diameter of 09-09-51 line and 09-11-37 line between 1-time-pinching group and 2-time-pinching group. But 3-time-pinching group was reduced. There was no significance in flower diameter of these two lines but the number of flowers was reduced by more pinching times. Therefore, in this experiment, the groups which were planted on June 13 got the best ornamental value and the recommended planting time is in the middle of June. Furthermore, 2 times of pinching was recommended.

조경용 국화 품종 ‘Pansy Ball’과 육성 계통의 적정 식재 밀도

정해준 · 김동찬 · 姚婧超 · 서병기 배재대학교 자연과학연구소 2012 自然科學論文集 Vol.23 No.1

This research was carried out to investigate optimum planting density of landscape garden mum ‘Pansy Ball’ and 5 inbred lines. ‘Pansy Ball’ and 5 inbred lines of garden mums were planted at Pai Chai university campus on April 25, 2011. Plant density was controlled by 1 plant, 2 plants, 4 plants in one plot of 0.4m x 0.5m respectively. Average plant height in 1 plant in one plot was 46.2cm~71.7cm. And the average plant height in 2 plant in one plot was 45.9cm~64.8cm, while 4 plant in one plot was 38.9cm~53.2cm. Also, plant width of 05-18-01, 05-01-01, 09-76-03, and 09-02-02 inbred lines were over 50cm by 1 plant in one plot. However, as the plant height and plant density was high, most of the plants got flattened and the ornamental value was also reduced. We got the ‘Pansy Ball’ and 2 inbred lines 09-76-03, 09-02-02 for proper landscape ground cover plant.

Effects of contact shape on ballistic phonon transport in semiconductor nanowires

Jing-Jing Yao,Wei-Qing Huang,Gui-Fang Huang,Yuan Chen,Ling-Ling Wang,Wangyu Hu,Anlian Pan 한국물리학회 2012 Current Applied Physics Vol.12 No.2

We study the effects of contact shape on ballistic phonon transport in semiconductor nanowires at low temperatures using an approximative scalar model of continuum elasticity. Five different contacts connected to two semiconductor nanowires with different transverse widths are discussed. Numerical results show that the contact shape acts as an ‘acoustic impedance adaptor’, playing a crucial role on the ballistic phonon transmission and thermal conductance. The phonon coupling in the contacts with certain length facilitates ballistic phonon transmission compared to the abrupt interface, in which the phonon scattering is the strongest. It is found that the more the contact is abrupt, the smaller the thermal conductance is. The catenoidal contact rather than the abrupt interface is also the competitive candidate to obtain bigger thermal conductance. These results indicate that choosing an appropriate contact shape is one of the most critical factors to accurately measure the thermal conductance with a very high precision and reliability in different temperature ranges at low temperatures.

Cross-coupled fuzzy PID control combined with full decoupling compensation method for double cylinder servo control system

Jing Yao,Xiaoming Cao,Yang Zhang,Yao Li 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.5

The purpose of this thesis is to develop a double cylinder synchronization control system to address the high precision control requirement of this system. First, the dual-input dual-output coupling mathematical model of the hydraulic press synchronization control system was built using mechanism modelling. Then, the mathematical model of compensating and decoupling links is established by the input and load disturbance decoupling control method based on feedback compensation. Next, a cross-coupled fuzzy PID controller is designed, which is then combined with full decoupling compensation method. Finally, the coupling characteristics of the synchronization control system and the synchronization control performance of the hydraulic cylinders under the cross-coupled fuzzy PID controller combined with the decoupling control algorithm were tested and evaluated in a principle experiment platform. The results indicate that the robustness and the ability to resist interference load are improved under the theory and control strategy outlined in this paper.

중국 모바일게임의 특성과 소비자체험이 만족도와 구매의도에 미치는 영향

요금격(Yao, Jinge),방기위(Pang, Qiwei),배기형(Bae, Ki-Hyung) 한국상품학회 2021 商品學硏究 Vol.39 No.2

본 연구의 목적은 중국 모바일 게임의 특성과 소비자 체험이 이용자의 만족도와 구매의도에 미치는 영향을 검증하였다. 이를 위해 본 연구는 모바일 게임을 체험본 적 있는 이용자를 대상으로 2021년 2월 1일부터 2월 20일까지, 수집된 설문지 317부에 대한 SPSS Statistics 24를 사용하여 실증분석을 실시하였다. 분석 결과는 다음과 같다. 첫째, 가설검증을 실시하기에 앞서 측정개념에 대한 타당성 및 신뢰성 분석결과 게임특성은 즉시접속성, 사용편리성, 상호작용성 등 3개 요인으로 나타났으며 소비자 체험은 오락적 체험, 현실도피적 체험, 심미적 체험 들 3개 요인으로 제시하였다. 둘째, 모바일 게임의 특성 3가지 변수 중 사용편리성만 이용자의 몰입에 유의한 정(+)의 영향을 미치는데 제외된 다른 변수들이 즉시접속성과 상호작용성이 몰입에 유의한 영향을 미치지 않는 것으로 나타났다. 소비자 체험의 3가지 변수가 몰입에 모두 긍정적인 정(+)의 영향을 미치고 특히 그중에 현실도피적 체험이 몰입에 미치는 영향이 가장 높다. 셋째, 몰입이 게임 이용자의 만족도와 구매의도에 유의한 영향을 준다고 확인되었다. 넷째 모바일 게임의 특성, 소비자 체험과 만족도, 구매의도 사이에 몰입의 매개효과가 있다는 것을 검증되었다. 몰입은 모바일 게임의 특성, 소비자 체험과 만족도의 미치는 매개효과 사이에 오락적 체험과 심미적 체험은 부분매개효과가 있다는 것으로 나타났다. 또한 몰입은 모바일 게임의 특성, 소비자 체험과 구매의도의 미치는 매개효과 사이에 심미적 체험은 완전 매개효과가 있고 현실도피적 체험은 부분매개효과가 있는 것으로 나타났다. This study verified the influence of characteristics of china s mobile games and consumer experience on consumer satisfaction and purchasing intention. This study conducted an online and offline survey for 20 days from February 1the to February 20th, 2021. A total of 317 responses were collected from Chinese consumerswhomobile game users. The analysis results are as follows. First of all, of the three variables that characterize mobile games, only easy of use has a significant positive effect on user traffic, while the other variables have no significant effect on flow. Three experiences of consumer experience have significant positive (+) effects on flow, Escapist Experience had the most significant effect on flow. Second, we found that flow had positive (+) effect on mobile game consumer satisfaction and purchasing intention. Third, there was a mediating effect of flow among mobile game characteristics, consumer experience and satisfaction, purchasing intention. It can be seen that there was a partial mediating effect of Flow among Entertainment Experience, Esthetic Experience and satisfaction. In addition, there was a partial mediating effect of flow among Escapist Experience and purchasing intention, a completemediating effect of flowamong Esthetic Experience and purchasing intention.

중국 MICE산업의 국민경제 기여도 분석

요금격(Yao, Jinge),방기위(Pang, Qiwei),배기형(Bae, Ki-Hyung) 한국문화산업학회 2021 문화산업연구 Vol.21 No.1

본 연구의 목적은 중국 MICE산업이 중국 국민경제에 얼마만큼 기여하는지를 분석하고 MICE산업의 인지도 향상과 국민경제의 특성을 이해함으로써 향후 중국 MICE산업의 발전을 위한 정책 수립과 활성화 발전방안에 도움이 된다. 이를 위해 본 연구는 중국통계청의 2019년에 발표한 2017년 산업연관표를 중심으로 기본분류인 149개 산업 중 인쇄 ,도매, 소매, 도로운송, 숙박, 요식, 정보 기술 서비스, 임대, 비즈니스 서비스, 문화예술 ,스포츠, 오락 등 12개 부문을 MICE산업으로 분류하여 이에 대한 중국 국가경제 기여도를 분석하였다. 분석 결과는 다음과 같다. 첫째, 중국 2017년 MICE산업의 생산유발계수 열 합계는 2.045, 행 합계는 7.909로 나타났다. 둘째, MICE산업의 감응도계수는 0.802, 영향력계수는 0.756으로 나타났다. 셋째, MICE산업의 소득유발계수는 0.506, 생산세 유발계수는 0.114등을 보여주고 있다. 넷째, MICE산업의 최종수요 7,893십억 위안을 국가경제에 투입할 경우 전체 산업에서 유발되는 총생산유발액은 275,882십억 위안으로 이 중 MICE산업은 62,429십억 위안으로 전체의 22.6%에 달한다. 그리고 MICE산업의 부가가치유발액은 97,748십억 위안으로 이중 MICE산업 자체에서는 7,893십억 위안으로 총부가가치 유발액의 8.1%이다. 또한 소득유발액은 49,327십억 위안으로 이중 MICE산업 자체에서는 3,990십억 위안의 소득이 창출되어 전체의 8.1%를 치지하고 있다. 생산세 유발액은 총 11,975십억 위안으로 이중 MICE산업 자체에서는 902십억 위안으로 7.5%로 나타났다. 중국 MICE산업은 발전할 잠재력이 충분히 있기 때문에 정부의 정책 지원 필요하고 법적 규정과 시장관리에 대한 감독이 요구되고 MICE산업의 혁신력을 높이고 "인터넷+MICE"모델 개발도 필요하다. This study analyzed the Chinese MICE industry contributes to the national economy and to understand the importance of the MICE industry and the characteristics of the national economy, helping to establish policies for the future development of MICE industry. This study analyzed the contribution of national economy by classifying 12 of 149 industries into MICE industries, which are basic industrial sectors, based on the 2017 Input-output Table published by the China National Statistical Office. The analysis results are as follows. Firstly, in 2017 the total production inducement coefficient of China MICE industry is 2.045 in column, the sum of the rows is 7.909. Secondly, the sensitivity coefficient is 0.802, the influence coefficient is 0.756. Thirdly, the income inducement coefficient is 0.506. Finally, if the final demand of the MICE industry is invested in the national economy of 789.3billion yuan, the total output generated by the entire industry is 275,882billion yuan, and the MICE industry is 62,429billion yuan accounting for 22.6% of the whole industry. And the additional value amount from the MICE industry is 97,748billion yuan, while it is 7,893 billion yuan(8.1%of total) in the MICE industry itself. In addition, the income inducement amount is 49,327billion yuan, make up 3,990billion yuan(8.1%of total) in the MICE industry itself. It is showed that Production tax induced amount to 11,975billion yuan, 7.5%of which came to 902billion yuan in the MICE industry itself. Because China"s MICE industry has full development potential, the government needs to provide active support and policy support, in addition to the need for legal provisions and supervision of market management. In order to improve the innovative development of the MICE industry, it is necessary to develop a new model of "network +MICE".

Secure Communication in Two-Way Relay Networks with Channel Estimation Errors

Yao Chenhong,Pei Changxing,Guo Jing 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.8

In this paper, we investigate the secrecy outage probability (SOP) for the cooperative amplify-and-forward (AF) two-way relay networks (TWRN) with channel estimation (CE) errors under Rayleigh fading channels. In the proposed system, two sources simultaneously broadcast their respective information to all the relays firstly. Then, the optimal relay performs AF protocol on the received signals sent from the two sources and forward them to both sources. In both phases, An eavesdropper receives the signals from sources and relay nodes illegally. The performance of the proposed system is quantified by deriving the upper bound of the overall outage probability. Impact of CEs on the system is illustrated by simulations.

Performance Analysis of Two-Way AF Cooperative Networks with the Nth Relay Selection

Yao Chenhong,Pei Changxing,Guo Jing 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.8

In this letter, we propose a novel two-way amplify- and-forward (AF) relay selection scheme over independent flat Nakagami-m fading channels. In the proposed schemes, two users first sequentially broadcast their respective information to all the relays. Then, the Nth best-relay perform AF protocol on the received signals sent from the two users and forward them to both users. The Nth best-relay is selected to optimize the end-to- end performance of the system transmission. The performance of the proposed system is quantified by deriving the lower bound of the overall outage probability and average symbol error rate (SER). The effectiveness of our proposed selection scheme and analytical results is verified by simulations.

Effects of Submicron Metakaolin on Hydration and Compressive Strength of Portland Cement Slurry

Yao Yu Wang,Lihua Zhao,Jing Zhao 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.7

Submicron metakaolin (SMK) is an ultrafine aluminosilicate material, which was used for improving properties of cement slurry in this paper. SMK was added to the slurry mix as a partial substitute for Portland cement in proportions of 1%, 3%, 5% and 7%. To explore the influence of SMK on hydration of cement slurry, the heat flow and pH measurement was used to indicate that SMK significantly increased the rate of heat release and total heat release,increase the rate of calcium hydroxide (CH) generation in the pore solution at initial stage of hydration. The hardened specimens at different ages (3 – 28 days) were measured by X–ray diffraction, Differential Thermal Analysis and Compressive strength. The results showed that:SMK displayed pozzolanic effect which reduced CH content and increased the generation of Calcium Silicate Hydrate (C-S-H) gel at later stages of hydration. The compressive strength tests showed that SMK highest increased compressive strength of the slurry by 67% and 19% at 3d and 28d over plain cement slurry. It was concluded that SMK could improve manyproperties of cement slurry and has the use potential on actual projects.

Enhanced bipolar fatigue resistance in CaZrO3-modified (K,Na)NbO3 lead-free piezoceramics

Yao, Fang-Zhou,Patterson, Eric A.,Wang, Ke,Jo, Wook,Rö,del, Jü,rgen,Li, Jing-Feng American Institute of Physics 2014 APPLIED PHYSICS LETTERS Vol.104 No.24