• 제목/요약/키워드: The United States

검색결과 4,148건 처리시간 0.031초

Swarm Satellite Observations of the 21 August 2017 Solar Eclipse

  • Hussien, Fayrouz;Ghamry, Essam;Fathy, Adel;Mahrous, Salah
    • Journal of Astronomy and Space Sciences
    • /
    • 제37권1호
    • /
    • pp.29-34
    • /
    • 2020
  • On 21 August 2017, during 16:49 UT and 20:02 UT period, a total solar eclipse started. The totality shadow occurred over the United States in time between ~17:15 UT and ~18:47 UT. When the solar radiation is blocked by the moon, observations of the ionospheric parameters will be important in the space weather community. Fortunately, during this eclipse, two Swarm satellites (A and C) flied at about 445 km through lunar penumbra at local noon of United States in the upper ionosphere. In this work, we investigate the effect of the solar eclipse on electron density, slant total electron content (STEC) and electron temperature using data from Swarm mission over United States. We use calibrated measurements of plasma density and electron temperature. Our results indicate that: (1) the electron density and STEC have a significant depletion associated with the eclipse; which could be due to dominance of dissociative recombination over photoionization caused by the reduction of ionizing extreme ultraviolet (EUV) radiation during the eclipse time (2) the electron temperature decreases, compared with a reference day, by up to ~150 K; which could be due to the decrease in photoelectron heating from reduced photoionization.

A Study on the Patent Map of Apparel Design using Computer Technology

  • Lee, Keum-Hee
    • The International Journal of Costume Culture
    • /
    • 제5권3호
    • /
    • pp.151-163
    • /
    • 2002
  • This study attempted to creat patent map 163 cases of patent for technology of apparel design using computer technology and researched the trend of Patent application by count교, technologies, applicant and filing date. In regard to application by country, the United States mark the first place with 99 cases (61%), Japan marks the second with 34 cases (21%), Korea the third with 19 cases (12%). Comparing the patent applications in specialized technologies, we find the United States is overwhelming the technologies for garment Production Process, Patterning Process and preparatory process, and Japan is currently undergoing development work in this area, while most of Korean applications are focused in the technologies for selection or substitution methods related to Purchase and sale of apparels, body image and design service Therefore, it is required to preoccupy and defend patent rights as well as develop technologies aggressively and extensively in preparation for the expansion of e-commerce market. Analysing the speed of progress in technology in terms of number of applicants and application cases, we can say it entered into developing stage from the middle of 1990s and it seems that they will continue the development work from now on. in case of Korea, they began in 1996, somewhat late, but reached a similar level with the United States in 2000.

  • PDF

미국의 기록물 기술규칙에 관한 연구 (A Study on the Archival Description Rules in the United States)

  • 한경신
    • 한국문헌정보학회지
    • /
    • 제38권4호
    • /
    • pp.125-147
    • /
    • 2004
  • 본 연구의 목적은 기록물기술의 가장 선진국인 미국에서의 기록물기술의 표준화를 위한 발달과정과 기록물 기술규칙의 내용 및 특징에 대한 분석을 통하여 앞으로 우리의 기록물기술 표준화를 위한 기술규칙 제정의 필요성과 방향을 위한 토대를 마련하고자 한 것이다. 이를 위하여 먼저 기록물기술의 표준화의 의의와 미국에 있어서 기록물기술 표준화의 발달과정을 살펴보았다. 또한 현재 기록물 기술규칙으로 사용 중인 AACR2R 제4장 Manuscripts와 APPM2의 제정배경 및 특징에 대해 조사하였다. 그리고 이들 규칙의 내용을 비교 분석해 보고, 우리의 기록물기술 표준화를 위한 기술규칙 제정의 방향을 제시하였다.

북미 역사보존 교육의 발전과정 및 접근방식 - 20세기 중반에서 21세기 초반까지 - (History and Fundamentals of Historic Preservation Education in the United States - From the Mid-20th to Early 21st Century -)

  • 서명수;김수진
    • 교육시설 논문지
    • /
    • 제27권2호
    • /
    • pp.21-34
    • /
    • 2020
  • This study explores the education of historic preservation in the United States. The research examined its history and philosophical and practical approaches within the American urban context, from its historical backgrounds to evolving social perspectives. This case study is to help collegiate educators in understanding the principles of American architectural heritage conservation and why it has been developed in specific directions and, ultimately, to assist in designing preservation education programs for different local contexts. Historic preservation in the United States has been integrated into the architecture and urban planning field as a sustainable development approach incorporating physical, social, and economic matters. First, this study explored the development of the preservation profession, policies, and education since the 1930s. Second, the researchers investigated the three fundamentals of historic preservation, such as authenticity, documentation, and community engagement. Lastly, this research discussed that American preservation deals with living communities and seeks interdisciplinary approaches. The understanding of historic preservation pedagogy from these multiple perspectives would hopefully provide a guide to developing cultural heritage education programs.

Opioid Pharmacotherapy for Chronic Noncancer Pain: The American Experience

  • Chapman, C. Richard
    • The Korean Journal of Pain
    • /
    • 제26권1호
    • /
    • pp.3-13
    • /
    • 2013
  • Chronic noncancer pain is a significant and growing public health challenge in the United States. Lacking effective alternative interventions for effective chronic noncancer pain management, many physicians have turned to opioid pharmacotherapy. Increased opioid prescribing brings not only gains in therapeutic benefit but also a higher incidence of adverse drug events including increased medication misuse and opioid related mortality. Currently the United States must confront the dual problems of widespread undertreated chronic noncancer pain and a prescription opioid abuse crisis. Withholding pain relieving drugs from patients in need is unjustifiable, yet drug diversion, abuse and adverse drug events have become major social as well as medical problems. At the heart of this crisis is the lack of definitive evidence about the risk to benefit ratio of opioid pharmacotherapy for chronic noncancer pain both on an individual case and on a population basis. This article describes the extent and severity of the American chronic noncancer pain problem and the history of opioid pharmacotherapy for chronic noncancer pain in the United States. It then discusses the concept of evidence based practice and reviews current evidence supporting opioid pharmacotherapy for chronic noncancer pain as well as adverse drug events related to opioid pharmacotherapy including misuse and abuse. Finally, it considers the conflict of providing pain relief versus protecting society and reviews steps that governmental agencies, industry and others are taking to contain and ultimately resolve the problems of excessive prescribing and conflicting priorities.

미국 공공기록관리법(PRA)을 통한 기록관리 제도에 관한 연구: 연방과 주를 중심으로 (A Study on the Records Management System through the Public Records Management Act in the United States: Focused on the Federal and State)

  • 조애란;김민경;윤은하
    • 한국기록관리학회지
    • /
    • 제19권2호
    • /
    • pp.213-241
    • /
    • 2019
  • 본 연구는 미국 기록관리법령을 통해 미국 기록관리 제도를 살펴본 후 미국 기록관리의 특징을 도출해보고자 하였다. 미국의 연방과 주(州)를 병렬적으로 비교하여 미국 행정 체계 안에서 특징을 파악하고자 하였으며 미국 기록관리법의 구성과 내용을 기록관리 프로세스에 따라 분석하였다. 논의 결과, 미국 기록관리는 연방과 주의 독립성을 인정하되, 기록물의 영구적 가치의 수호를 위해서 기관들 간의 협력관계를 유지한다는 특성을 가진다.

Study on Devaluation of Public Housing in United States: Public Housing in the Past, Present and Future

  • Shin, Wonhye
    • Architectural research
    • /
    • 제16권4호
    • /
    • pp.185-192
    • /
    • 2014
  • As the cities developed and grew into larger metropolises, land value grew and land invariably became an asset. One of very critical causalities of such widespread need for development was the urban residence that got converted into cesspools of urban slum, major crime area and rapidly degraded. Incessant population growth of these cities called for more land to build residences especially the economically affordable and safe housings were needed for the citizens of none or low-income community. However, not enough attentions have yet been given to the essential basics of human habitation that exist within metropolitan limits by social, economical and political aspects. The following paper studies and elaborates the development motivation adopted by the government to develop public housing in the United States under the technical guidance of supporters and developers from national and international communities. The paper discusses current situation of public housing in the United States with a focus on understanding the present status of public housing and physical condition of their surroundings, strategies for fund mobilization, types of local involvement and community participation, ways of continuous monitoring and maintenance, etc. thereby creating a self-sustaining and integrated management plan for public housings in the future.

Investigating the use of multiple social networking services: A cross-cultural perspective in the United States and Korea

  • Kang, Hannah;Pang, Saraphine Shiping;Choi, Sejung Marina
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • 제9권8호
    • /
    • pp.3258-3275
    • /
    • 2015
  • The rise in recent technology has changed the ways, in which people communicate with one another. Social networking services (SNSs) have become one of the most representative means. General SNSs allow users to create their own unique profiles, search for fellow members, share information, etc., while other SNSs have functions that cater to different needs of users. As a result, users of SNSs have begun to pick and choose different SNSs and concurrently use multiple SNSs in order to fulfill all their needs. This exploratory study examined which SNSs are used together and the characteristics that predict the use of multiple SNSs. In addition, it observed the differences between consumers' usage of multiple SNSs in different cultures. An online survey was administered to SNS users in the United States and Korea. The results of the study showed that the use of multiple SNSs is not yet prevalent in Korea, the country that represented a collectivistic culture. In addition, in the U.S., the highest number of users reported that they were active on at least three SNSs.

Review for the Curriculum and License Exam of Physical Therapists in the United States

  • Choi, Chi-Whan;Jeong, Yeon-Gyu
    • The Journal of Korean Physical Therapy
    • /
    • 제31권4호
    • /
    • pp.184-192
    • /
    • 2019
  • Purpose: This study was conducted to review the curriculum and license examination of physical therapists in the United States. Methods: The doctor of physical therapy (DPT) curriculum was evaluated by a review Course Work Tool version 6 (CWT6) data and current physical therapy licensure examination (National Physical Therapy Exam, NPTE) category in the United States. Results: The results indicated that they were required to meet the doctor of physical therapist degree based on 'Guide to Physical Therapist Practice' of American Physical Therapy Association (APTA). This includes general education in the areas of communications and humanities, physical science, biological science, social and behavioral science, and mathematics. A minimum of one course must be completed successfully in each area of general education. Moreover, there should be at least 68 didactic credits of professional education and 22 clinical education credits, which is a minimum of two full-time clinical internships with no less than 1050 hours in total, which were supervised by a physical therapist. Regarding the physical therapy licensure examination, National Physical Therapy Exam (NPTE, 2016) consisted of a physical therapy examination (26.5%), evaluation, differential diagnosis, baseline of prognosis (32.5%), intervention (28.5%), protection, responsibility, and research (6.5%) based on the 'Guide to Physical Therapist Practice'. Conclusion: Based on the study results provided above, it is considered a standard to meet domestic reality as the Guide to Physical Therapist Practice of APTA for South Korean physical therapists.

재미 한인청소년의 집에 대한 장소애착, 문화적응 스트레스와 심리적 적응에 대한 연구 (A Study of Place Attachment to Home, Acculturative Stress, and Psychological Adjustment Among Korean Youth in the United States)

  • 이진숙;데지레 친
    • 아동학회지
    • /
    • 제32권6호
    • /
    • pp.33-48
    • /
    • 2011
  • This study examined the relationships between place attachment to home, acculturative stress, and psychological adjustment among Korean youth in the United States. In particular, this study sought to better understand how place attachment to home and acculturation stress impacts upon youth's psychological adjustment, as measured by depression and self-esteem. The subjects consisted of 225 Korean youths (113 males and 111 females) residing in Michigan in the USA, of whom 47.6% attended middle school while 52.4% of whom attended high school. The instruments utilized were the acculturative stress scale (Sandhu and Asrabadi, 1994), the place attachment scale (Choi, Lee, & Han, 2009), Radloff's depression scale (CES-D), and Rosenberg's self-esteem scale. Hierarchical multiple regression analyses were used to assess the predictive effects of place attachment to home and acculturative stress on youth's psychological adjustment, alongside controlling demographic variables. The findings indicated that place attachment to home and acculturative stress impacted upon depression and self-esteem, as experienced by the youths examined. These results have implications for our understanding of the importance of both youths' place attachment to home and acculturative stress in the acculturation process.