• 한국군사과학기술학회지
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• 제11권3호
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• pp.99-105
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• 2008

The analysis of LOS(Line-Of-Sight) is defined as an "unobstructed view between two points". The LOS results may be influenced by terrain source, algorithm/interpolation method, etc. In the area denies any access and flight over, LOS results would be doubtful because of low precision of terrain data therefore have limitations of referring to many military applications. Using LIDAR data, LOS Analysis was performed by changing DTED resolution(1$\sim$30m) and LOS distance(50$\sim$2000m). The results of experiment shows that LOS analysis for small area, such as DMZ surveillance, were heavily influenced by DTED resolution.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 추계학술대회
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• pp.609-611
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• 2013

장애물이 거의 없는 대기 중이나 주로 고정된 장애물이 존재하는 지상과 달리 해수면에서는 파도에 의해 수시로 통신 장애가 발생 할 수 있다. 특히 파도의 영향을 크게 받고 안테나 고도가 낮은 소형 통신국에서는 무선 통신을 위한 안테나 가시선(Line Of Sight, LOS) 확보가 어렵다. 본 논문에서는 해수면에서 파고와 송 수신 안테나의 고도 변화에 따른 가시선(LOS)과 통신망 운용을 위한 최소 안테나 고도를 계산하였다.

• 제어로봇시스템학회논문지
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• 제7권12호
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• pp.1024-1030
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• 2001

In this paper, a horizontal LOS(line of sight) rate estimator for conventional sea skimming ASM(anti-ship missile) is proposed. A LOS rate dynamics model for a 2-axis gimbal system and the homing geometry is derived. A new LOS rate estimator is proposed by applying the Kalman filter theory to the LOS rate dynamics model. The proposed filter estimates LOS rates by taking roll motions into account. Simulation results show that the proposed filter produces smaller estimation errors than a conventional method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 D
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• pp.1932-1934
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• 2001

In this paper, a horizontal LOS(line of sight) rate estimator for conventional sea skimming ASM(anti-ship missile) is proposed. A LOS rate dynamics model in 2 axis gimbal system and in homing geometry is derived. And a new LOS rate estimator is proposed by applying a Kalman filter theory to the LOS rate dynamics model. The proposed filter can estimate LOS rates with taking roll motions into account. Simulation results show the proposed filter produces smaller estimation errors than a conventional method.

• 한국초전도학회:학술대회논문집
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• 한국초전도학회 2005년도 High Temperature Superconductivity Vol.XV
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• pp.3-3
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• 2005

• 한국전문물리치료학회지
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• 제6권1호
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• pp.35-46
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• 1999

The purposes of this study were to evaluate and compare the limits of stability(LOS) at different body positioning(standing and one leg standing) in normal 20 years of age. Fourty subjects participated in the study. Subjects comprised 20 males and 20 females who without neurologic, orthopaedic impairments and balance performance impaired. The LOS was measured at Two Feet Forceplate and One Leg Forceplate with BPM(Balance Performance Monitor) Dataprint Software Version 5.3. The subjects stood 4 inches between the feet at Two Feet Forceplate and stood one legged at One Leg Forceplate. In this study applied the paired t-test and independent t-test to determine the statistical significance of results at 0.01 and 0.05 level of significance. The results of this study were as follows: 1) The anteroposterior LOS significantly increased with one legged stance(p<0.05). 2) The mediolateral LOS significantly decreased with one legged stance(p<0.01). 3) There were significant difference posterior LOS in standing and anterior LOS in one legged stance according to sexual difference(p<0.05). 4) The mediolateral LOS was not significant difference between standing and one legged stance according to sexual difference(p>0.05).

• 전기학회논문지
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• 제67권10호
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• pp.1395-1400
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• 2018

EO TGP(Electro-Optical Targeting Pod) is an optical tracking system which has various functions such as target tracking and image stabilization and LOS(Line of Sight) change. Especially, it is very important to move the LOS into a interest point for joystick command. When pilot move joystick in order to observe different scene, EO TGP gimbals should be operated properly. Generally, most EOTS just operate corresponding gimbal for joystick command. For example, if pilot input horizontal command in order to observe right hand screen, it just drive azimuth gimbal at any position. But in the screen, the image dosen't move in a horizontal direction because gimbal structure is Euler angle. And image rotation is occurred by elevation gimbal angle. So we need to move Pitch gimbal. So in the paper, we designed LOS moving algorithm which convert LOS command to gimbal velocity command to move LOS properly. We modeled a differential kinematic equation and then change the joystick command into velocity command of gimbals. This algorithm generate velocity command of each gimbal for same horizontal direction command. Finally, we verified performance through MATLAB/Simulink.

• Archives of Plastic Surgery
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• 제49권1호
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• pp.5-11
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• 2022

Facial feminization surgery (FFS) refers to a set of procedures aimed at altering the features of a masculine face to achieve a more feminine appearance. In the second part of this two-part series, assessment and operations involving the midface, mandible, and chin, as well as soft tissue modification of the nasolabial complex and chondrolaryngoplasty, are discussed. Finally, we provide a review of the literature on patient-reported outcomes in this population following FFS and suggest a path forward to optimize care for FFS patients.

• 이베로아메리카
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• 제12권1호
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• pp.323-347
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• 2010

La latinoamericanización de la inmigración a España ha comenzado a partir de principios del nuevo milenio. Ahora los latinoamericanos superan a los inmigrantes de Marruecos, que han sido más numerosos. El número de inmigrantes latinoamericanos en España es de más de 1,700,000, cifra que corresponde al 34% del total de los inmigrantes. Como es sabido, los latinoamericanos vienen a España con el fin de buscar la oportunidad de una vida mejor. La economía española ha ido bien y la condición del mercado laboral ha sido favorable a los inmigrantes de América del Sur por lo que su mayoría puede consequir el empleo y mandar el dinero a sus queridos familiares. Por otra parte, la expansión de la comunidad latinoamericana en España se debe a la hispanidad que une a América con España. Como ellos comparten misma creencia y mismo idioma con los españoles, a la vista de los españoles, son considerados 'más seguros' que los inmigrantes de otra nacionalidad cuando se establecen y se integran a la sociedad española. De este modo, la inmigración latinoamericana presente en España debe ser percibido tanto en la dimensión institucional como en el contexto histórico-cultural.

• 이베로아메리카
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• 제11권2호
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• pp.65-89
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• 2009

El presente trabajo tiene como objetivo proporcionar una explicación simplificada pero suficiente sobre el uso de las formas pronominales de tratamiento en los países de habla española, y hacer una propuesta para la enseñanza de los pronombres de tratamiento en la enseñanza del español en Corea. En la actualidad, en el mundo hispánico existen varios sistemas de tratamiento pronominal. La distribución dialectal de sus formas es bastante complicada. En la norma de España se usa el tú para el trato informal en oposición con el usted para el trato formal. Mientras tanto, en Hispanoamérica se usan el tú y el vos para el trato informal, y el usted para el trato formal. Sin embargo, la mayoría de las gramáticas didácticas y manuales no ofrece una explicación suficiente en cuanto a las diferencias de las formas y el uso de los pronombres de tratamiento. En Corea, en la mayoría de las clases de español se enseñan sólo la norma de España, que es minoitaria entre la comunidad global de hispanohablantes. Eso no les permitiría a los estudiantes tener una interacción exitosa con personas que dominen otras normas del tratamiento pronominal. Para que los alumnos tengan una competencia comunicativa que sea lo más universalmente válida, es necesario ofrecer una perspectiva de los fenómenos lingüísticos y culturales que toman en cuenta las variedades del sistema del tratamiento pronominal que se usan hoy en día en el dominio hispánico. Por último, los intereses y el nivel de los alumnos son variables que determinan qué o cuánto hacer en la enseñanza de las formas pronominales de tratamiento.