• Title/Summary/Keyword: 2-universal

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The hopping variable range conduction in amorphous InAs thin films

  • Yao, Yanping;Bo, Baoxue;Liu, Chunling
    • Current Applied Physics
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    • v.18 no.12
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    • pp.1492-1495
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    • 2018
  • This paper studies the influence of temperature on electrical resistivity in ${\alpha}-InAs$ thin films between 30 K-2K based on the analysis of Mott VRH model and ES VRH model. The effect of the interactions between electrons at lower temperature must be considered, therefore, ES VRH conduction will dominate mechanism, and the crossover from Mott to ES VRH conduction is observed about 7 K. Based on available experiment data and VRH conduction model, the parameters of VRH conduction are determined. And the calculated values of $T_C$ are consistent with the experimental results. In addition, $R_M/{\xi}$, ${\Delta}_M/kT$, $R_{ES}/{\xi}$ and ${\Delta}_{ES}/kT$ are satisfied with the validity of Mott and ES models. Furthermore, the temperature dependence of resistivity at low temperature obeys a universal scaling law, which well describes the overall temperature range of VRH conduction. However, the values of $T^{\prime}_M$ from the universal function are two order of magnitudes lower than $T_M$ deduced from fitting experiment.

Nationalism as a Political Ethics: Nation and Individual Desire (정치 윤리학으로서의 민족주의: 민족과 개인의 욕망)

  • Cho, Kyu-hyung
    • English & American cultural studies
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    • v.10 no.2
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    • pp.267-289
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    • 2010
  • Nationalism endorses a collective movement to establish an authentic position in the international cultural and political arena. Arguably the dialectic of nationalism and geopolitics bears a reassuring similarity to the philosophical lineage going back, at least, to Hegelian dialectic of universality and particularity. This dialectic platform has been concerned with sustaining, among other things, the dynamics between the universal and the particular. In practical terms, nationalism prompts increased sensitivity to socio-political pressures coming from abroad to cancel the national particularity into geopolitical, so-called universal, anonymity. Drawing suggestively from psychoanalysis, Lacanian ethics in particular, this discussion articulates the ethics of nationalism. Recounting Kantian self-determination as a reference point for responsible morality, Lacan suggests the problematics of desire as an alternative index for ethics. As individual desire flows from the unfathomable abyss of misrecognition, Lacanian ethics dissuade individuals to unlearn the fantasy that their own real desire, a residue produced by the Symbolic process, can be satisfied with that very socio-cultural Symbolic. Subjecting nationalism to Lacanian implications, Zizek illuminates nationalism as a small screening object which obscures as much as displays the circuits to the individual desire. Psychoanalytic ethics addresses that the ethical base should be found upon the particular, individual, real desire. As far as the nationalist cause also puts emphasis upon particularity rather than universality, nationalism is logically positioned to exert reflective efforts on empowering its constitutive individuals. Lacanian ethics persuades us to challenge the universal claim and to work through to regenerate nationalism in presenting its final contribution towards individual particularities.

Challenges to Achieving Universal Health Coverage Throughout the World: A Systematic Review

  • Darrudi, Alireza;Khoonsari, Mohammad Hossein Ketabchi;Tajvar, Maryam
    • Journal of Preventive Medicine and Public Health
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    • v.55 no.2
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    • pp.125-133
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    • 2022
  • Objectives: No systematic review has explored the challenges related to worldwide universal health coverage (UHC). This study reviewed challenges on the road to UHC. Methods: A systematic electronic search of all studies that identified the challenges of worldwide UHC was conducted, without any restrictions related to the publication date or language. A hand search and a bibliographic search were also conducted to identify which texts to include in this study. These sources and citations yielded a total of 2500 articles, only 26 of which met the inclusion criteria. Relevant data from these papers were extracted, summarized, grouped, and reported in tables. Results: Of the 26 included studies, 7 (27%) were reviews, 6 (23%) were reports, and 13 (50%) had another type of study design. The publication dates of the included studies ranged from 2011 to 2020. Nine studies (35%) were published in 2019. Using the World Health Organization conceptual model, data on all of the challenges related to UHC in terms of the 4 functions of health systems (stewardship, creating resource, financing, and delivering services) were extracted from the included studies and reported. Conclusions: This study provides a straightforward summary of previous studies that explored the challenges related to UHC and conducted an in-depth analysis of viable solutions.

A Study on Web Accessibility Status of Metropolitan and Provincial Offices of Education from the Universal Design View (유니버설 디자인 관점에서 본 국내 시도 교육청의 웹 접근성 실태에 관한 연구)

  • Seo, Mi-Ra
    • Journal of Digital Convergence
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    • v.11 no.5
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    • pp.405-410
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    • 2013
  • Due to the enforcement of a law about disability nondiscrimination and rights protection in 2008, the web accessibility has become an obligation. According to a survey targeting public sectors such as central administrative organization, local autonomous entity and etc., the level of compliance with web accessibility appeared to be improved every year. However, such legal mechanism focuses on the improvement of convenience for disabled people only and does not meet the concept of universal design that aims to satisfy every user. Therefore, this study verifies the status of web accessibility on 17 homepages of metropolitan and provincial offices of education. The status survey was carried out with 3 steps: 1) Verification through automated verification tool by National Information Society Agency, 2) Verification through Web Content Accessibility Guidelines(UD-WCAG) that adopts the concept of universal design, 3) Verification by using screen reader. Compared to the verification through automated verification tool, the overall compliance rate verified through UD-WCAG was reported lower.

A study on the change of the living conditions and the role of the Universal Design in an aged society (고령사회에 있어서 생활환경의 변화와 유니버설디자인의 역할)

  • 김경태
    • Archives of design research
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    • v.17 no.2
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    • pp.231-240
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    • 2004
  • The present study approached conceptually the various problems which occurred in the living conditions during the modernization under the rapid growth drive and their solutions. It seems that the basis of the various problems which occurred in the highly informational and aged society lies in the discord of usability in the living conditions including the tools. It can be said that the secured social equity through the usability plays and important role in enhancing the quality of life of the prosumer, especially the elderly, by providing the self-confidence and the pleasure, and helping the smooth formation of the community The purpose of the present study was to find out the role of the design, as a professional field, on the various social pathological situation and the problems of the living conditions, and, especially, the role of the Universal Design on the desirable reorganization of the living conditions(the change of the living conditions through the community activation) which put the importance on the tool condition.

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Study on color perception improvement for universal design - In respect of bus station in Seoul - (유니버설 디자인을 위한 색채 인지도 개선방향에 관한 연구 - 서울시 버스정류장 쉘터를 중심으로 -)

  • Kim, Eun-Ae;Park, Gyeong-Jin
    • Science of Emotion and Sensibility
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    • v.13 no.2
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    • pp.371-380
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    • 2010
  • In this paper, we study the bus stop shelters, one of the public facilities, revised by the development plan of Seoul city. Dark gray and brown are dominant colours for the shelters. As representative colours, designated by Seoul city, dark gray and brown can be harmonious naturally with urban environment. However, in view of universal design, those colours have some problems to be recognized and to be used for handicapped groups, olds and childens especially. For analysis, investigating proposition and circumstance of two groups living in the city is the first place. This study is for building proper colour domains of universal design for public facilities and for recognizing that the way of public facilities should be that the ambit of public space is not regarded as a facility but recognized easily in accordance with environment including a facility. we hope that this paper is practically used as a reference for coming studies are the purposes of this study.

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A Study on Current Situation of Rural Community Facilities Applied Universal Design (마을회관의 유니버설디자인 현황에 관한 연구)

  • Lee, Eul-Gyu
    • Journal of the Korean Institute of Rural Architecture
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    • v.17 no.1
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    • pp.113-120
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    • 2015
  • In recent years, the population composition of rural area is changing due to the decreasing population growth of the aged with disability and people returning to farming. Since 1970's the rural community facilities have been spreaded out across most rural villages. Although the rural community facilities are the most widely used facilities, the existing facilities are need to be new built or remodeled according to demographic changes, usage of facilities, and environmental condition. Given this reality, the rural community facilities such as village assembly hall and nursing home for senior citizen are not only used for daily life place but also used like co-residence having meals and sleeping together. Therefore the rural community facilities have the potential to become welfare service space for rural elderly people. This research focuses on the current situation of universal design applied community facilities. According to the research, most of the village community facilities were built in the 1990s and 82% of the buildings were more than 15 years old. Furthermore, 45% of the village community facilities more than 15 years old most have a ground floor in masonry structure. The area of the building is 65% less than $100m^2$. The width of the access entrance, the height of the sink, gas safety valve and so forth were relatively well designed. However, the handrail of the entrance, space in front of the toilet bowl, the height difference between the entrance and floor, the installation of the width of the ramp and stair handrail was relatively incomplete. Village community facilities to be built in the future should be universal design fundamentally.

Influence of different surface treatments on bond strength of novel CAD/CAM restorative materials to resin cement

  • Komurcuoglu, Meltem Bektas;Sagirkaya, Elcin;Tulga, Ayca
    • The Journal of Advanced Prosthodontics
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    • v.9 no.6
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    • pp.439-446
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    • 2017
  • PURPOSE. To evaluate the effects of different surface treatments on the bond strength of novel CAD/CAM restorative materials to resin cement by four point bending test. MATERIALS AND METHODS. The CAD/CAM materials under investigation were e.max CAD, Mark II, Lava Ultimate, and Enamic. A total of 400 bar specimens ($4{\times}1.2{\times}12mm$) (n=10) milled from the CAD/CAM blocks underwent various pretreatments (no pretreatment (C), hydrofluoric acid (A), hydrofluoric acid + universal adhesive (Scotchbond) (AS), sandblasting (Sb), and sandblasting + universal adhesive (SbS)). The bars were luted end-to-end on the prepared surfaces with a dual curing adhesive resin cement (Variolink N, Ivoclar Vivadent) on the custom-made stainless steel mold. Ten test specimens for each treatment and material combination were performed with four point bending test method. Data were analyzed using ANOVA and Tukey's test. RESULTS. The surface treatment and type of CAD/CAM restorative material showed a significant effect on the four point bending strength (FPBS) (P<.001). For LDC, AS surface treatment showed the highest FPBS results ($100.31{\pm}10.7MPa$) and the lowest values were obtained in RNC ($23.63{\pm}9.0MPa$) for control group. SEM analyses showed that the surface topography of CAD/CAM restorative materials was modified after treatments. CONCLUSION. The surface treatment of sandblasting or HF acid etching in combination with a universal adhesive containing MDP can be suggested for the adhesive cementation of the novel CAD/CAM restorative materials.

A Study on the Harmonic Current Characteristics of Universal Motro with Speed Controller (유니버셜모터 속도제어기의 고조파전류 특성에 관한 연구)

  • 임홍우;박수강;백형래
    • The Transactions of the Korean Institute of Power Electronics
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    • v.6 no.2
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    • pp.132-140
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    • 2001
  • A universal motor is a small dc series machine motor that is designed to operate from an ac machine. The characteristics of universal motors are high no-load and staring torque. Because of the high operating speed, the size of these motors for a given hp rating is typically smaller that other fractional hp ac machine, making it ideal for hand-held tools and appliances where weight, compactness, and speed are importance factors. A phase-angle control with AC drive system gains a high popularity due to their simple implementation, but contains the disadvantage of their poor input power factor, subharmonic current. Pulse width modulation control with DC drive systems increase the power factor as without delay phase angle. This paper analyzed the subharmonic characteristics of the phase angle control system that is controlled by zero voltage crossing similar to traditional method, and the dc chopper system that is used PWM.

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The Study of System Visibility of Universal Middleware Pervasive Memorial Engine (시스템가시성평가를 위한 유니버설미들웨어기반 Pervasive Memorial Engine 연구)

  • Lee, Hae-Jun;Hwang, Chi-Gon;Yoon, Chang-Pyo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.10a
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    • pp.335-338
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    • 2017
  • Presently, the collaboration hardware system and software technology that promoted commercializing ICBMS for integrated system visibility evaluation. This variation will move on the next pervasive period that mixed with cultural and technology convergence. There is possibility for the period system can invoke unpredictable confusing blank state. The blank state systems have ecosystem characteristics that are supplied, maintained and operated through the complex interactions of technology and culture. Using universal middleware can support the life-cycle model and increase the visibility of complex systems and prepare for confusing situations. In this study, based on universal middleware, data and service dynamic standardized modules were evaluated to support stable system visibility platform. The system visibility module consists of Intelligent Pervasive Cloud module, Memorial Service module and Life Cycler connection module. each module reflects various requirements of system visibility requested by external system. In addition, the analysis results are supported by various network application service standards through platform independent system and architecture.

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