• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2013.06a
• /
• pp.242-244
• /
• 2013

한국에서 해운산업으로 배출되는 여성 인력은 년 간 800여명에 이른다. 그 중 과반수의 이하의 여성인력만이 매 년 해운선사에 취업하여 종사하고 있으나, 여러 가지 현안 사항들로 채용의 기회는 남성에 비해 현재까지는 적은 편이다. 여성 해기사의 고용기피 이유들 중 하나는 여성해기사가 실제 취업활동시 '남성에 비해 우월하지 않을 것이다' 라는 사회적 인식의 차이도 영향을 미친다는 가정하에 실제 여성 해기사와 승선 경험이 있는 선원과 그렇지 않은 선원을 대상으로 여성 해기사의 업무 성취도, 팀협력, 의사소통 능력, 직업 만족도 및 직업에 관한 책임감의 범위로 인식의 차이를 설문조사하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.11a
• /
• pp.208-210
• /
• 2023

여성해사인의 직업 관련 인식 조사 및 다각화를 위해 M해양대학교 해사대학에 재학 중인 여학생의 승선 및 진로에 대한 설문조사를 실시하였다. 설문 결과를 분석하여 여성해사인의 진로 및 취업에 대한 인식을 파악하고 이를 토대로 학부 교육과정, 학교 취업 프로그램, 학교 생활 규정 분야에서 진로 다각화를 위한 방안 및 시사점을 제언하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2013.06a
• /
• pp.457-458
• /
• 2013

전 세계 1내지 2 퍼센트에 해당하는 여성선원 중 상선에 종사하는 여성해기사는 그 중 6 퍼센트에 해당한다. 해운 산업의 구성 인력 중 소수라고 할 수 있으나 여성의 원활한 해상 진출을 위해 국제해사기구를 비롯하여 정부, 교육단체, 노조 및 해운선사들의 지원과 관심이 필요한 시점이다. 이에 그 동안 국제해사기구를 비롯하여 여성해기사를 위한 현존 지원 정책을 살펴 보고, 향후 여성해기사의 역량강화 및 해상진출을 위한 제도적, 정책적 요소들을 식별하였다.

• Korean Journal of Environmental Biology
• /
• v.24 no.4
• /
• pp.387-391
• /
• 2006

Computational and experimental dosimetry of Henschke applicator with respect to high dose rate brachytherapy using the MIRD phantom and a remote control afterloader were performed. A comparison of computational dosimetry was made between the simulated Monte Carlo dosimetry and GAMMADOT brachytherapy Planning system's dosimetry. Dose measurements was performed using ion chamber in a water phantom. Dose rates are calculated using Monte Carlo code MCNP4B and the GAMMADOT. Thecomputational models include the detailed geometry of Ir-192 source, tandem tube, and shielded ovoids for accurate estimation. And transit dose delivered during source extension to and retraction from a given dwell position was estimated by Monte Carlo simulations. Point doses at ICRU bladder/rectal pointswhich have been recommened by ICRU 38 was assessed. Calculated and measured dose distribution data agreed within 4% each other. The shielding effect of ovoids leads to 19% and 20% dose reduction at bladder surface and rectal points.

• Journal of radiological science and technology
• /
• v.33 no.3
• /
• pp.283-288
• /
• 2010

In order to evaluate radiation dose on the uterus and surrounding organs during brachytherapy for cervical cancer, of which the frequency of occurrence is high in Korean women, as well as radiation dose on medical staffs in proximity of patients receiving the therapy, a mathematical phantom based on reference Korean was established and the radiation dose was calculated accordingly. For simulation, $^{192}Ir$, which is useful in brachytherapy, was selected as radionuclide. Also, it was presumed that the intensity of initial radiation was 1 Ci. The result indicated the radiation of 4.92E-14 Gy/Ci in the uterus, the source organ. In addition, radiation on people around patient receiving the therapy was found to be 1.24E-07 Sv at a distance of 30 cm.

• Journal of Radiation Protection and Research
• /
• v.39 no.1
• /
• pp.30-37
• /
• 2014

Recently High-Definition Reference Korean-Man (HDRK-Man) and High-Definition Reference Korean-Woman (HDRK-Woman) were constructed in Korea. The HDRK phantoms were designed to represent respectively reference Korean male and female to calculate effective doses for Korean by performing Monte Carlo dose calculation. However, the Monte Carlo dose calculation requires detailed knowledge on computational human phantoms and Monte Carlo simulation technique which regular researchers in radiation protection dosimetry and practicing health physicists do not have. Recently the UFPE (Federal University of Pernambuco) research group has developed, and opened to public, an online Monte Carlo dose calculation system called CALDOSE_X(www.caldose.org). By using the CALDOSE_X, one can easily perform Monte Carlo dose calculations. However, the CALDOSE_X used caucasian phantoms to calculate organ doses or effective doses which are limited for Korean. The present study developed an online reference Korean dose calculation system which can be used to calculate effective doses for Korean.

• Journal of Radiation Protection and Research
• /
• v.22 no.4
• /
• pp.299-307
• /
• 1997

The individual dose equivalent, $H_p$, effective dose, E, and gender specific effective dose, $E^m$ and E$^f$, were evaluated using the male and female phantoms of MIRD type located in the radial gamma radiation field near a point source. The point sources were placed at the distances of 15, 40 and 100 cm in front of the body at different heights. Two radionuclides, $^{137}Cs$ and $^{131}I$, were selected for the illustrative examples. In terms of the gender specific effective doses, $E^f$ is higher than $E^m$ with a few exceptions, e.g. the case where the point source is at the height of reproductive organs, but the differences from the sex- averaged values are not significant enough to justify use of gender specific dose conversion factors for the radial gamma field. The ratios $H_p$/E were in the range of 1 to 3 depending on the source and dosimeter positions when the dosimeter is worn on the front surface of the torso covering from chest to lower abdomen, but varied from 0.34 to 6.5 in extreme cases. When it is assumed that the typical handling procedure of radioactive source material and the typical dosimeter position(on the chest) be respected, the dosimeters calibrated against the broad parallel field appear to provide estimates with acceptable errors for the effective dose of workers exposed to radial broad gamma field around a point source.

• Journal of Radiation Protection and Research
• /
• v.24 no.4
• /
• pp.205-213
• /
• 1999

Effective dose conversion coefficients from unit activity radionuclides contaminated on the ground surface were calculated by using MCNP4A rode and male/female anthropomorphic phantoms. The simulation calculations were made for 19 energy points in the range of 40 keV to 10 MeV. The effective doses E resulting from unit source intensity for different energy were compared to the effective dose equivalent $H_E$ of previous studies. Our E values are lower by 30% at low energy than the $H_E$ values given in the Federal Guidance Report of USEPA. The effective dose response functions derived by polynomial fitting of the energy-effective dose relationship are as follows: $f({\varepsilon})[fSv\;m^2]=\;0.0634\;+\;0.727{\varepsilon}-0.0520{\varepsilon}^2+0.00247{\varepsilon}^3,\;where\;{\varepsilon}$ is the gamma energy in MeV. Using the response function and the radionuclide decay data given in ICRP 38, the effective dose conversion coefficients for unit activity contamination on the ground surface were calculated with addition of the skin dose contribution of beta particles determined by use of the DOSEFACTOR code. The conversion coefficients for 90 important radionuclides were evaluated and tabulated. Comparison with the existing data showed that a significant underestimates could be resulted when the old conversion coefficients were used, especially for the nuclides emitting low energy photons or high energy beta particles.