Understanding Buyer’s Adoption Intent of B2B Electronic Marketplaces

Despite the significant role of business-to-business (B2B) e-marketplaces (EMPs) in providing firms with opportunities to transform the way that organizations conduct trading activities and supply chain management (SCM) tasks, few studies emphasize the motive for adoption intent of EMPs. Drawing on institutional theory and information processing theory, this study develops a model aiming for delineating the relationship between institutional pressures (in terms of mimetic, coercive, and normative pressures), benefits of SCM tasks (involving interdependent tasks and procurement life cycle (PLC) activities), and adoption intent. Data collected from 79 potential adopters of EMPs largely support our research hypotheses. Theoretical contribution and managerial implications of this study are discussed

MICROSOFT-NOKIA MERGER CONTROL IN EAST ASIA

MICROSOFT-NOKIA MERGER CONTROL IN EAST ASI

Direct growth of β-FeSi2 nanowires with infrared emission, ferromagnetism at room temperature and high magnetoresistance via a spontaneous chemical reaction method

100學年度研究獎補助論文[[abstract]]Self-catalyzed β-FeSi2 nanowires with a high aspect ratio have been synthesized by a spontaneous chemical vapor transport and reaction method. The as-synthesized single-crystalline β-FeSi2 nanowires exhibit photoluminescence at a wavelength of 1.54 μm, which is suitable for Si-based optical communication, at room temperature. The conductivity of a single-stem β-FeSi2 nanowire was found to increase with decreasing diameter. The room temperature ferromagnetism and high magnetoresistance performance of 6% at 200 K indicates that β-FeSi2 nanowires are potentially applicable for spintronic nanodevices.[[notice]]補正完畢[[incitationindex]]SCI[[booktype]]紙本[[booktype]]電子

High Impact IS Papers and Researchers in the Pacific Asia Region

As research in information systems (IS) becomes increasingly popular, it is interesting to know the impact of research from the Pacific Asia region and who has contributed more high impact papers. With the assistance of SSCI/SCIE database of Web of Science and Google Scholar, this study investigates the impact of Pacific Asian researchers and their papers by the citation numbers of their published papers in 21 IS journals. Common keywords and theories adopted in the most cited papers are also examined. The results indicate that scholars in Hong Kong, Australia, and Singapore are major contributors in the region. MIS Quarterly publishes most highly cited papers. Papers co-authored across regions are more likely to create high citations. Our findings provide insights into how research reports from Pacific Asian authors have influenced the development of knowledge in information systems. Available at: https://aisel.aisnet.org/pajais/vol1/iss1/8

Constrained K-means and Genetic Algorithm-based Approaches for Optimal Placement of Wireless Structural Health Monitoring Sensors

Optimal placement of wireless structural health monitoring (SHM) sensors has to consider modal identification accuracy and power efficiency. In this study, two-tier wireless sensor network (WSN)-based SHM systems with clusters of sensors are investigated to overcome this difficulty. Each cluster contains a number of sensor nodes and a cluster head (CH). The lower tier is composed of sensors communicating with their associated CHs, and the upper tier is composed of the network of CHs. The first step is the optimal placement of sensors in the lower tier via the effective independence method by considering the modal identification accuracy. The second step is the optimal placement of CHs in the upper tier by considering power efficiency. The sensors in the lower tier are partitioned into clusters before determining the optimal locations of CHs in the upper tier. Two approaches, a constrained K-means clustering approach and a genetic algorithm (GA)-based clustering approach, are proposed in this study to cluster sensors in the lower tier by considering two constraints: (1) the maximum data transmission distance of each sensor; (2) the maximum number of sensors in each cluster. Given that each CH can only manage a limited number of sensors, these constraints should be considered in practice to avoid overload of CHs. The CHs in the upper tier are located at the centers of the clusters determined after clustering sensors in the lower tier. The two proposed approaches aim to construct a balanced size of clusters by minimizing the number of clusters (or CHs) and the total sum of the squared distance between each sensor and its associated CH under the two constraints. Accordingly, the energy consumption in each cluster is decreased and balanced, and the network lifetime is extended. A numerical example is studied to demonstrate the feasibility of using the two proposed clustering approaches for sensor clustering in WSN-based SHM systems. In this example, the performances of the two proposed clustering approaches and the K-means clustering method are also compared. The two proposed clustering approaches outperform the K-means clustering method in terms of constructing balanced size of clusters for a small number of clusters. Doi: 10.28991/CEJ-2022-08-12-01 Full Text: PD

Understanding Satisfaction With Service Providers From The Resource-Based View Of A Firm

Drawing on the resource-based view (RBV), the aim of this research is to better understand how satisfaction with application service providers (ASPs) is affected by intangible assets in interorganizational relationships (e.g. antecedents of non-contractibility), which in turn are influenced by IT-enabled resources such as information systems (IS) integration and ambidexterity of software development. Empirical findings support the proposed model. We discuss the implications for practitioners and research

Benthic Fluxes of Dissolved Organic Carbon from Gas Hydrate Sediments in the Northern South China Sea

Hydrocarbon vents have recently been reported to contribute considerable amounts of dissolved organic carbon (DOC) to the oceans. Many such hydrocarbon vents widely exist in the northern South China Sea (NSCS). To investigate if these hydrocarbon vent sites release DOC, we used a real-time video multiple-corer to collect bottom seawater and surface sediments at vent sites. We analyzed concentrations of DOC in these samples and estimated DOC fluxes. Elevated DOC concentrations in the porewaters were found at some sites suggesting that DOC may come from these hydrocarbon vents. Benthic fluxes of DOC from these sediments were 28 to 1264 µmol m−2 d−1 (on average ~321 µmol m−2 d−1 which are several times higher than most DOC fluxes in coastal and continental margin sediments. The results demonstrate that the real-time video multiple-corer can precisely collect samples at vent sites. The estimated benthic DOC flux from the methane venting sites (8.6 x 106 mol y-1, is 24% of the DOC discharge from the Pearl River to the South China Sea, indicating that these sediments make an important contribution to the DOC in deep waters

The Uses of a Dual-Band Corrugated Circularly Polarized Horn Antenna for 5G Systems

This paper presents the development of a wide-beam width, dual-band, omnidirectional antenna for the mm-wave band used in 5G communication systems for indoor coverage. The 5G indoor environment includes features of wide space and short range. Additionally, it needs to function well under a variety of circumstances in order to carry out its diverse set of network applications. The waveguide antenna has been designed to be small enough to meet the requirements of mm-wave band and utilizes a corrugated horn to produce a wide beam width. Additionally, it is small enough to integrate with 5G communication products and is easy to manufacture. This design is simple enough to have multi-feature antenna performance and is more useful for the femtocell repeater. The corrugated circularly polarized horn antenna has been designed for two frequency bands; namely, 26.5–30 GHz for the low band and 36–40 GHz for high band. The results of this study show that return-loss is better than 18 dB for both low and high band. The peak gain is 6.1 dBi for the low band and 8.7 dBi for the high band. The beam width is 105 degrees and 77 degrees for the low band and the high band, respectively. The axial ratio is less than 5.2 dB for both low and high band. Generally, traditional circularly polarized antennas cannot meet the requirements for broadband. The designs for the antennas proposed here can meet the requirements of FR2 bandwidths. This feature limits axial ratio performance. The measurement error in the current experiment comes from the high precision control on the size of the ridge