A Study on the Influence of Tourist Spots Preference by the Tourist Information Using SNS Characteristics -focused on China-

WangYu,Jong-Ho Lee 한국유통과학회 2013 한국유통과학회 학술대회 논문집 Vol.2013 No.-

Purpose - Tourist information service is growing rapidly by using SNS, The users can get their tourist information conveniently and enjoyably according to their own situation at any time, any place. Under these circumstances SNS tourist information service users are able to further expand their using rage. Now, the rapid spread of the internet and social networking services will lead to great changes in the tourism industry. Thus, with the increase of SNS users it is necessary to reveal the importance of SNS tourist information service as a tool to enable the tourism industry. The purpose of this study is based on the characteristics of SNS usefulness, convenience, interactivity, intimacy and use the diffusivity and reliability as the parameter to reveal their importance in the user's tourist spots preference. Results - First, it has been proved that usefulness has a beneficial impact on diffusion. Therefore, the SNS Tourist Information plays a useful role, and people will read it, believe it, and recommend it. Second, convenience does not have positive effect on diffusion. So there is no impact on proliferation and trust. There are the results of this investigation emphasis on the 20 generations of young people. Thirdly,interactivity has a positive impact on diffusivity. In off-line, the more closer of the social relations are, the more powerful the influence of oral intelligence and the diffusion of intelligence are. Fourthly, intimacy has a positive impact on diffusivity. Just the opposite, intimacy has not positive influence on reliability, which is not consistent with the prior study results. Finally, diffusivity and reliability have positive impacts on the preference of sightseeing places. It means that higher diffusivity and reliability can influence the preference of sightseeing places by sightseeing intelligence's users in SNS. Conclusions - The analysis results are as follows. Firstly, this research verifies that the characteristics o

Spectroscopic Characterization of Heptamethine Cyanine Dyes for the Interaction with the CN-and F-

Wang, Yu,Gwon, Seon-Yeong,Son, Young-A,Kim, Sung-Hoon Informa UK (TaylorFrancis) 2012 Molecular Crystals and Liquid Crystals Vol.566 No.1

Three-Dimensional Lock and Key Colloids

Wang, Yu,Wang, Yufeng,Zheng, Xiaolong,Yi, Gi-Ra,Sacanna, Stefano,Pine, David J.,Weck, Marcus American Chemical Society 2014 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.136 No.19

<P>Colloids with well-defined multicavities are synthesized through the hydrolytic removal of silica cluster templates from organo-silica hybrid patchy particles. The geometry of the cavities stems from the originally assembled cluster templates, displaying well-defined three-dimensional symmetries, ranging from spherical, linear, triangular, tetrahedral, trigonal dipyramidal, octahedral, to pentagonal dipyramidal. The concave surface of the cavities is smooth, and the cavity shallowness and size can be varied. These particles with multicavities can act as “lock” particles with multiple “key holes”. Up to <I>n</I> “key” particles can self-assemble into the lock particles via depletion interaction, resulting in multivalent, site-specific, reversible, and flexible bonding.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2014/jacsat.2014.136.issue-19/ja502699p/production/images/medium/ja-2014-02699p_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja502699p'>ACS Electronic Supporting Info</A></P>

Dithiosquarylium-based Colorimetric Sensors for $Hg^{2+}$

Wang, Yu,Gwon, Seon-Yeong,Kim, Sung-Hoon 한국섬유공학회 2011 FIBERS AND POLYMERS Vol.12 No.6

A new $Hg^{2+}$-selective chemosensor based on dithiosquarylium (DTSQ) dye was investigated. Among various metal cations tested, exclusively $Hg^{2+}$ ion responses to irreversible color change of DTSQ-1, along with the $Hg^{2+}$-triggered desulfurization of dithiosquarylium into its oxygen analogue squarylium (SQ) dye.

Mechanism of the X-ray and Soft Gamma-ray Emissions from the High Magnetic Field Pulsar: PSR B1509-58

Wang, Yu,Takata, Jumpei,Cheng, Kwong Sang 한국우주과학회 2013 Journal of Astronomy and Space Sciences Vol.30 No.2

We use the outer gap model to explain the spectrum and the energy dependent light curves of the X-ray and soft γ-rayradiations of the spin-down powered pulsar PSR B1509-58. In the outer gap model, most pairs inside the gap are createdaround the null charge surface and the gap’s electric field separates the opposite charges to move in opposite directions.Consequently, the region from the null charge surface to the light cylinder is dominated by the outflow current and that fromthe null charge surface to the star is dominated by the inflow current. We suggest that the viewing angle of PSR B1509-58 onlyreceives the inflow radiation. The incoming curvature photons are converted to pairs by the strong magnetic field of the star.The X-rays and soft γ-rays of PSR B1509-58 result from the synchrotron radiation of these pairs. The magnetic pair creationrequires a large pitch angle, which makes the pulse profile of the synchrotron radiation distinct from that of the curvatureradiation. We carefully trace the pulse profiles of the synchrotron radiation with different pitch angles. We find that thedifferences between the light curves of different energy bands are due to the different pitch angles of the secondary pairs, andthe second peak appearing at E > 10 MeV comes from the region near the star, where the stronger magnetic field allows thepair creation to happen with a smaller pitch angle.

Low-Complexity Network Coding Algorithms for Energy Efficient Information Exchange

Wang, Yu,Henning, Ian D. The Korea Institute of Information and Commucation 2008 Journal of communications and networks Vol.10 No.4

The use of network coding in wireless networks has been proposed in the literature for energy efficient broadcast. However, the decoding complexity of existing algorithms is too high for low-complexity devices. In this work we formalize the all-to-all information exchange problem and shows how to optimize the transmission scheme in terms of energy efficiency. Furthermore, we prove by construction that there exists O(1) -complexity network coding algorithms for grid networks which can achieve such optimality. We also present low-complexity heuristics for random. topology networks. Simulation results show that network coding algorithms outperforms forwarding algorithms in most cases.

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Wang, Yu,Xie, Yun-Xiang,Liu, Xiang The Korean Institute of Power Electronics 2015 JOURNAL OF POWER ELECTRONICS Vol.15 No.3

This study investigates the inherent influence of a DC-link voltage controller on both DC-link voltage control and the compensation performance of a three-phase, four-wire shunt active power filter (APF). A nonlinear variable-parameter DC-link voltage controller is proposed to satisfy both the dynamic characteristic of DC-link voltage control and steady-state compensation performance. Unlike in the conventional fixed-parameter controller, the parameters in the proposed controller vary according to the difference between the actual and the reference DC-link voltages. The design procedures for the nonlinear voltage controller with variable parameters are determined and analyzed so that the proposed voltage controller can be designed accordingly. Representative simulation and experimental results for the three-phase, four-wire, center-spilt shunt APF verify the analysis findings, as well as the feasibility and effectiveness of the proposed DC-link voltage controller.

Study on the emergency coordination mechanism of Megacities : A Case of Shanghai

Wang, Yu 한국도시행정학회 2019 한국도시행정학회 학술발표대회 논문집 Vol.2019 No.12

This paper analyzes the Current situation of Shanghai emergency management coordination mechanism, based on interview materials and relevant literature. Summarize the “fine governance advantages” of the Shanghai emergency management department in the cooperation mechanism in recent years, as well as related issues such as interest, coordination, classification, and abnormal management, so as to provide suggestions for solving the synergy problem of Shanghai emergency management institutions at present stage.

b-Cyclodextrin-based poly(ionic liquids) membranes enable the efficient separation of the amino acids mixture

Wang Yu,Lianglei Liu,Fenfang Li,Zhijian Tan 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.103 No.-

As a kind of novel polyelectrolyte materials, poly(ionic liquids) (PILs) have excellent potentiality in theseparation of ampholytes suchlike amino acids. Herein, the b-cyclodextrin-based PILs had been synthesized,followed by blending with poly(vinylidene fluoride) (PVDF) to prepare poly(ionic liquid) membranes(PILMs). The Fourier transformed infrared (FT-IR) spectroscopy, 1H nuclear magnetic resonance(1H NMR), scanning electron microscope (SEM), thermal gravimetric analysis (TGA), mechanical strength,zeta potential, and pore size distribution were characterized for these membranes or their intermediates. These PILMs had been developed for the selection separation of the amino acids mixture of L-glutamicacid (L-Glu) and L-threonine (L-Thr). The factors influencing the separation result were investigated,including the solution pH of the amino acids mixture and the PVDF amount in PILMs. The maximumselectivity of 55% can be obtain by one-step separation under the optimal conditions. This separation processusing PILMs had the advantages of good selectivity, low operating pressure, larger water flux, andgood reusability, which had the potentiality in the separation of various amino acids mixtures.

The Influence of SNS Characteristics on Tourist Attractions Preference : Focus on China

Wang Yu,이종호,김화경 한국유통과학회 2014 유통과학연구 Vol.12 No.9

Purpose - The rapid spread of SNS and increase of SNSusers have heralded great changes in the tourism industry. Therefore, this study focused on how SNS characteristics- usefulness, convenience, interactivity, and intimacy - influence diffusivity, reliability and, consequently, user's preference for touristattractions. Research design, data, and methodology- This study is designed not only to collect data with a questionnaire survey butalso to test hypotheses with SEM by SPSS 18.0 and AMOS18.0. Results- Usefulness, interactivity, and intimacy positively affect diffusivity, whereas convenience does not positively affectdiffusivity. In addition, intimacy has a negative influence onreliability. However, diffusivity and reliability have positive impacts on the preference for tourist places. Conclusions - Certain characteristics of SNS facilitates thespreading of SNS tourist information. Usability and interactivityhave positive impacts on the reliance of tourist information. Better communication can enhance the reliance of travelinformation. The influence of spreading tourist information has apositive influence on its reliance. Extension and reliance canhave positive effects on the preference for tourist attractions.