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Assessing E-government Adoption in Russia : Impacts of Service Delivery Attributes
Elizaveta Srednik,Kyung Jin Cha 한국무역연구원 2016 무역연구 Vol.12 No.2
Despite its relatively recent emergence, e-government has attracted a lot of attention in the last decade as governments all over the world choose to deliver their services online. However, despite the dynamic and successful development of e-government in Russia, it suffers from low acceptance among citizens, falling under a low usage pattern as acknowledged by the United Nations. Even though e-government adoption and service quality domains have received vast attention from researchers, several concerns arise as majority of the studies disregard its multidimensional nature by confusing quality of medium with content quality. Thus, in assessment of e-government adoption in Russia, we acknowledge the versatility of e-government service quality and primarily investigate the quality of the medium through four IT-mediated service delivery attributes. As all hypothesized relations were found significant through analyzing our integrated research model comprised with wellknown constructs from the Technology Acceptance Model, some important results and implications were yielded which might be helpful for wider e-government acceptance in Russia. In addition, as this research is a Russia-based empirical study, the results were able to provide some useful suggestions for e-government development and its adoption in Russia and CIS countries where studies of this kind are not common.
Srednik Elizaveta,차경진 한국산업보안연구학회 2017 한국산업보안연구 Vol.7 No.1
Although ICT outsourcing enables enterprises to procure their competitive advantage, due to the recent outbreak of information security incidents, its environment was analysed to be vulnerable. This calls for the in-depth analysis of the factors that can contribute to the enhanced security performance. Thus this study primarily investigates roles of control mechanisms and inter-organizational relationship capital as critical factors to achievement of superior information security performance. Most of the hypothesized relations were statistically proved and validated. In addition, our proposed model did not only filled existing literature gaps but also provided an innovative approach and suggestions for achieving greater security performance particularly in ICT outsourcing environment .
Self-assembled silver nanoparticles in glass microstructured by poling for SERS application
Ekaterina S. Babich,Elizaveta S. Gangrskaia,Igor V. Reduto,Jérémie Béal,Alexey V. Redkov,Thomas Maurer,Andrey A. Lipovskii 한국물리학회 2019 Current Applied Physics Vol.19 No.10
A simple technique to fabricate microchannels in glasses with self-assembled silver nanoparticles (NPs) in the channels is presented. It combines thermal-electric poling of silver-to-sodium ion-exchanged glass slides with a patterned anodic electrode, formation of the microchannels via selective etching off the unpoled slide regions, and hydrogen annealing. The annealing results in the growth of NPs only on the bottom of the channels. The studies performed allowed optimizing the channels’ depth and NPs surface density for Surface Enhanced Raman Scattering (SERS) based sensing and microfluidic applications. We have demonstrated that the formed NPs allow detection of 1/20 of BPE (1,2-Di(4-pyridyl)ethylene 97%) monolayer, the evaluated Raman enhancement factor being ~4·107. The proposed approach based on the glass poling allowed us the fabrication of ~1 μm deep channels and easy multiplication of the structures because the anodic electrodes used for the poling are capable of multiple usage.
Reliability of DC-link Capacitors in Two-Stage Micro-Inverters under different PV Module Sizes
Ariya Sangwongwanich,Yanfeng Shen,Andrii Chub,Elizaveta Liivik,Dmitri Vinnikov,Huai Wang,Frede Blaabjerg 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
The dc-link capacitor is one of the lifetime-limiting components in the photovoltaic (PV) micro-inverters, whose reliability should be evaluated carefully during the design. In micro-inverters, the PV module size (e.g., number of cells) is the parameter that determines the power rating of the PV module. The PV module size employed in the micro-inverter can vary for different manufacturers, and this variation can strongly affect the thermal stress and reliability of the dc-link capacitor in micro-inverters. To address this issue, an experimental-based reliability assessment is carried out in this paper using a twostage micro-inverter where 60-cell and 72-cell PV modules are considered. Three different daily mission profiles are employed during the experimental test. The thermal stress and reliability of the dc-link capacitor under different operating conditions are evaluated together with the energy yield. The results indicate that employing a 60-cell PV module is more beneficial for the micro-inverter, especially during a clear day, where 19 % more energy can be captured during the entire lifespan of the microinverter. Thus, using the 60-cell PV module offers a better tradeoff between the reliability and energy yield of the micro-inverter.
Spinal cord stimulation in chronic pain: technical advances
Emil Isagulyan,Konstantin Slavin,Nikolay Konovalov,Eugeny Dorochov,Alexey Tomsky,Andrey Dekopov,Elizaveta Makashova,David Isagulyan,Pavel Genov 대한통증학회 2020 The Korean Journal of Pain Vol.33 No.2
Chronic severe pain results in a detrimental effect on the patient’s quality of life. Such patients have to take a large number of medications, including opioids, often without satisfactory effect, sometimes leading to medication abuse and the pain worsening. Spinal cord stimulation (SCS) is one of the most effective technologies that, unlike other interventional pain treatment methods, achieves long-term results in patients suffering from chronic neuropathic pain. The first described mode of SCS was a conventional tonic stimulation, but now the novel modalities (high-frequency and burst), techniques (dorsal root ganglia stimulations), and technical develop-ment (wireless and implantable pulse generator-free systems) of SCS are becom-ing more popular. The improvement of SCS systems, their miniaturization, and the appearance of new mechanisms for anchoring electrodes results in a significant reduction in the rate of complications and revision surgeries, and the appearance of new waves of stimulation allows not only to avoid the phenomenon of addiction, but also to improve the long-term results of chronic SCS. The purpose of this review is to describe the current condition of SCS and up-to-date technical advances.
Are vaginal swabs comparable to cervical smears for human papillomavirus DNA testing?
Liselotte Coorevits,Ans Traen,Luc Bingé,Jo Van Dorpe,Marleen Praet,Jerina Boelens,Elizaveta Padalko 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.1
Objective: Human papillomavirus (HPV) testing is widely incorporated into cervical cancer screening strategies. Current screening requires pelvic examination for cervical sampling, which may compromise participation. The acceptance could be raised by introducing testing on vaginal swabs. We explored the interchangeability of vaginal swabs and cervical smears for HPV testing, by means of a prospective study conducted in female sex workers (FSWs). Besides, we report on the occurrence of 32 different HPV genotypes in FSW with low-grade squamous intraepithelial lesion (LSIL) or high-grade squamous intraepithelial lesion (HSIL). Methods: Paired physician-collected vaginal swabs and cervical smears from 303 FSW were tested for HPV using the Abbott RealTime High-Risk HPV assay. Cervical cytology was examined on cervical smears. In case of HSIL/LSIL cytological classification (n=52), both samples were genotyped using INNO-LiPa HPV Genotyping Extra II. Results: The overall prevalence of high-risk (HR)-HPV was 51%. In FSW with HSIL/LSIL cervical cytology, the sensitivity and specificity of vaginal samples for the detection of HR-HPV was 100% and 70% and for probable HR-HPV 100% and 91%. The mean number of genotypes identified in vaginal samples (mean=3.5; 95% confidence interval [CI]=2.8–4.2) was significantly higher than in cervical smear samples (mean=2.6; 95% CI=2.1–3.0) (p=0.001). The most frequently encountered HR-HPV genotypes were HPV16, 31, 51, and 52. Conclusion: As our study shows that vaginal swabs are equivalent to cervical smears for the detection of (probable) HR-HPV, vaginal swabs can be used for HPV testing in cervical cancer screening strategies. Given the acceptance of vaginal sampling, this finding offers an opportunity to boost screening coverage.