Язык молодёжи как языковая субкультура в современном русском языке (на примере прозы И. Денежкиной)

( Baek Kyunghee ) 한국러시아문학회 2019 러시아어문학 연구논집 Vol.65 No.-

This article tries to analyze the language of youth, as a subculture in modern Russian language. Their aсtive processes are discussed on the example of Irina Denezhkinа's stories, which are conducted in comparison with classical literature. Just to trace how these processes of modern Russian language are manifested in the language of prose of the young modern writer Irina Denezhkinа. The peculiarity of Irina Denezhkinа’s writing style is embodied in her story “Give me” precisely, because the writer herself reflects the colloquial language and slanguage of the youth directly in the process of its development. It should also be noted that this is mainly the language of youth, teenagers and schoolchildren, whose speeches also represent the desire of young people’s self-expression, identity and sharpness of vivid expressions.

러시아어 단어내적반의어(enantiosemy) 연구

백경희(Kyunghee Baek) 한국슬라브어학회 2023 슬라브어연구 Vol.28 No.2

This article is devoted to the problem of enantiosemy - one of the most special phenomena in the lexical-semantic aspect of the Russian language. This sphere attracts the interest of many researchers but not yet sufficiently studied and determined by nonsystematic approach of the described object. Research of an enantiosemy as multi-sided and difficult linguistic unit demands studying of a wide range of the questions explaining its contradictory nature. So, the author suggests to approach not only from classic term, so-called enantiosemy (ENS), which means “intra-word antonymy” but also consider the terms of antagonym or contronym, reflecting their asymmetric feature of semantic polarity. The article analyses the category of ENS and the mechanisms of their formation and classifies 3 main types of ENS. Firstly, ENS with superficial negation, secondly, ENS with inversion of diathesis (agent - patient), thirdly, interlingual ENS with panchronic adoption. ENS may be the result of a semantic reconsideration of the word and a revision of connotation in individual word usage such as metonymy and metaphor (one of the typical mechanisms of ENS). Also, linguistic and extralinguistic factors function as mechanism of ENS and reflect the points of view of the participants (agens-patiens) of the communicative situation. ENS is, first of all, multi-temporal in nature, and their opposite meanings, associated with the same root (Proto-Slavic). This semantic syncretism can be traced at different diachronical and synchronical stages of Slavic language development. That’s why ENS is widely represented in colloquial speech, dialects, jargon and conspicuous for two opposite meaning in many Slavic languages. The author comes to a conclusion that the essence of ENS with its semantic ambiguity lies not in the occasional deviation from the norm, but in a realization of effective communicative strategy.

Enhanced Multi-trilateration Method to Mitigate Shadow Fading for ROA-based Indoor Sensor Localization

Kyunghee Seo,Hoki Baek 대한전자공학회 2024 IEIE Transactions on Smart Processing & Computing Vol.13 No.1

Sensor localization is difficult in indoor environments because of the multipath fading and shadow fading caused by obstacles [1]. Multipath fading and shadow fading cause large localization errors that make the sensor node fail in the sensor localization process. This paper highlights the indoor sensor localization concept and proposes a ROA (Received signal strength Of Arrival)-based sensor localization scheme. The proposed scheme called RERR (Range Expansion and Range Reduction) can mitigate the above-mentioned problems for indoor environments. The RERR-based sensor nodes virtually expand or reduce the measured range to succeed in localization regardless of the effects of multipath fading and shadow fading over communicating sensor nodes. The simulation results verified the effectiveness of the proposed scheme, showing small RMS errors and a large number of sensor nodes succeeding in the localization process.

톨루엔 및 크실렌 노출 근로자에서 안식향산나트륨 섭취에 따른 요중 대사산물 농도의 시간적 변화

정최경희(Kyunghee Jung-Choi),장성훈(Sounghoon Chang),김형수(Hyeongsu Kim),오원기(Wonki Oh),고상백(Sang Baek Koh),이건세(Kunsei Lee),박수경(Suekyung Park) 대한직업환경의학회 2006 대한직업환경의학회지 Vol.18 No.3

A Study on the Effect of XR Glasses on Technology Acceptance and Presence in the Blind

Gibaek Lee,Baek Sujin,Park Sohyun,Yongbeom Lee,Kyunghee Lim,Eung-Kyo Suh,Gyuri Eum,Taehyung Kim,Sujin Park 한국차세대컴퓨팅학회 2022 한국차세대컴퓨팅학회 학술대회 Vol.2022 No.10

The purpose of this study is to help the visually impaired lead a quality life by studying the effect of XR glasses on technology acceptability and sense of presence for the visually impaired. This study used the Technology Acceptance Model as a theoretical framework to verify the correlation of four variables: perceived immersion, information quality, XR presence, and digital informatization level for visually impaired people. As a result of the study, there were significant differences in technology acceptability in perceived ease of use, perceived usefulness, attitude toward use, and intention to use after the experiment on the visually impaired. There was no statistically significant difference in the variables related to the sense of presence, but a positive correlation could be confirmed. Based on the results of this study, it is expected to contribute to the technological advancement of XR glasses for the visually impaired.

Mo-Al 복합 산화물의 질화반응 처리된 촉매상에서 암모니아 촉매 분해반응

백서현 ( Seo-hyeon Baek ),윤경희 ( Kyunghee Youn ),신채호 ( Chae-ho Shin ) 한국화학공학회 2022 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.60 No.1

MoO₃ 비율을 10-50 중량비로 변화하여 제조한 Mo-Al 복합 산화물 상에서 소성 후 승온 질화반응을 통하여 얻은 Mo-Al 질화물 상에서 암모니아 분해반응에서의 촉매 활성을 검토하였다. 제조된 촉매의 물리·화학적 특성을 알아보기 위하여 N₂ 흡착분석, X-선 회절분석(XRD), X-선 광전자분석법(XPS), 수소 승온환원(H₂-TPR), 투과전자현미경(TEM)분석을 수행하였다. 600 ℃에서 소성 후 Mo-Al 복합산화물은 γ-Al₂O₃와 Al₂(MoO₄)₃ 결정상을 나타냈으며 질화반응후의 질화물은 비정형 형태를 보여주었다. 질화반응 후의 비표면적은 MoO₃의 위상전환반응에 의해 Mo 질화물 형성으로 인해 증가하였으며, Mo 질화물이 γ-Al₂O₃에 담지된 형태를 보여주었다. 암모니아 분해반응에서의 촉매 활성은 40 wt% MoO₃가 가장 좋은 활성을 보여주었고, 질화반응 시간이 증가함에 따라 활성이 증가하였으며 이에 따라 활성화에너지 감소 효과를 나타냈다. Catalytic activity in ammonia decomposition reaction was studied on Mo-Al nitride obtained through temperature programmed nitridation of calcined Mo-Al mixed oxide prepared by varying the MoO₃ quantity in the range of 10-50 wt%. N₂ sorption analysis, X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS) and H₂- temperature programmed reduction (H₂-TPR), and transmission electron microscopy (TEM) to investigate the physicochemical properties of the prepared catalyst were performed. After calcination at 600 ℃, the XRD of Mo-Al oxide showed γ-Al₂O₃ and Al₂(MoO₄)₃ phases, and the nitride after nitridation showed an amorphous form. The specific surface area after nitridation by topotactic transformation of MoO₃ to nitride was increased due to the formation of Mo nitride, and the Mo nitride was observed to be supported on γ-Al₂O₃. As for the catalytic activity in the ammonia decomposition reaction, 40 wt% MoO₃ showed the best activity, and as the nitridation time increases, the activity increased, and thus the activation energy decreased.

Combined repeated dose and reproductive/developmental toxicities of copper monochloride in rats

Chung, Moon-Koo,Baek, Sung-Soo,Lee, Sang-Hee,Kim, Hyunmi,Choi, Kyunghee,Kim, Jong-Choon Wiley Subscription Services, Inc., A Wiley Company 2009 Environmental Toxicology Vol.24 No.4

<P>This study investigated the combined repeated dose and reproductive/developmental toxicity of copper monochloride in rats. The test substance was administered once daily by gavage at 0, 1.3, 5, 20, or 80 mg/kg/day. Male rats were dosed for a total of 30 days beginning 14 days before mating. Female rats were dosed from 2 weeks before mating to day 3 of lactation throughout the mating and gestation period. At 80 mg/kg/day, deaths were observed in 3 out of 12 females. There was a dose-dependent increase in the incidence of clinical signs and a reduction in the food consumption. Hematological and serum biochemical investigations revealed a decrease in the red blood cell, hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin (MCH), and serum total protein levels and an increase in the white blood cell and platelets in males, and a decrease in the MCH and an increase in the platelets in females. Histopathological examination showed an increased incidence of squamous cell hyperplasia of the stomach in both genders as well as increased hematopoiesis of the femur in males. There was an increase in the number of icteric and runt pups at birth. At 20 mg/kg/day, there was an increase in the incidence of clinical signs and squamous cell hyperplasia of the stomach in both genders. At 5 mg/kg/day, an increase in the incidence of squamous cell hyperplasia of the stomach was observed in females. There were no adverse effects in the lowest group in both genders. Based on these findings, the no-observed-adverse-effect levels of copper monochloride were concluded to be 5 mg/kg/day in male rats and 1.3 mg/kg/day in female rats for general toxicity and 20 mg/kg/day for reproductive/developmental toxicity. © 2008 Wiley Periodicals, Inc. Environ Toxicol, 2009.</P>

Exposure to environmental chemicals among Korean adults-updates from the second Korean National Environmental Health Survey (2012–2014)

Choi, Wookhee,Kim, Suejin,Baek, Yong-Wook,Choi, Kyungho,Lee, Keejae,Kim, Sungkyoon,Yu, Seung Do,Choi, Kyunghee Elsevier 2017 International journal of hygiene and environmental Vol.220 No.2

<P><B>Abstract</B></P> <P>National biomonitoring program can offer solid scientific evidence on exposure profiles of environmental chemicals at a national level, and provide a snapshot of changing exposure level over time. Therefore, several countries have maintained such programs for developing environmental health policies. The Korean National Environmental Health Survey (KoNEHS) was designed to understand the level of human exposure to environmental chemicals by time and location, and to identify possible sources of such exposure. The 2nd stage of KoNEHS, which was conducted between 2012 and 2014, examined a total of 6478 adult subjects over 19 years of age, and measured 21 environmental chemicals of major policy concern. Compared to the findings from the first stage monitoring (2009–2011), slightly higher levels of blood lead were observed, while those of mercury remained similar. Blood metal concentrations, however, were higher than those reported from national biomonitoring programs of United States, Germany and Canada. The urinary concentrations of phthalates metabolites were lower, but those of t,t-muconic acid and BPA were higher than those reported in the first stage survey. The urinary cotinine level decreased perhaps reflecting general declining patterns of first- and second-hand smoking. The results of the second stage survey were made available for public use since April 2016.</P> <P>Some policy efforts appear to be at least in part effective on mitigating chemical exposure among people, e.g., urinary phthalate metabolites and cotinine, while further confirmations are warranted. In-depth assessments will be conducted to identify vulnerable groups and important exposure pathways.</P>

DETECTION OF DERMAL IRRITANT CHEMICALS WITH IN VITRO IRRITATION ASSAY

Eun-Hye Jo,Gyoun-Baek Seo,Jae-young Choi,Eung-Roh Park,Sang-Hee Lee,Jun-Heon Yoon,Kyunghee Choi,Jin-Seok Han 한국환경독성학회 2009 한국독성학회 심포지움 및 학술발표회 Vol.2009 No.11

Aluminum Nanoparticles Induce ERK and p38MAPK Activation in Rat Brain

Jung-Taek Kwon,Gyun-Baek Seo,Eunhye Jo,Mimi Lee,Hyun-Mi Kim,Ilseob Shim,Byung-Woo Lee,Byung-Il Yoon,Pilje Kim,Kyunghee Choi 한국독성학회 2013 Toxicological Research Vol.29 No.3

Aluminum nanoparticles (Al-NPs) are one of the most widely used nanomaterial in cosmetics and medical materials. For this reason, Al-NP exposure is very likely to occur via inhalation in the environment and the workplace. Nevertheless, little is known about the mechanism of Al-NP neurotoxicity via inhalation exposure. In this study, we investigated the effect AL-NPs on the brain. Rats were exposed to Al-NPs by nasal instillation at 1 mg/kg body weight (low exposure group), 20 mg/kg body weight (moderate exposure group), and 40 mg/kg body weight (high exposure group), for a total of 3 times, with a 24-hr interval after each exposure. Inductively coupled plasma mass spectrometry (ICP-MS) analysis indicated that the presence of aluminum was increased in a dose-dependent manner in the olfactory bulb (OFB) and the brain. In microarray analysis, the regulation of mitogen-activated protein kinases (MAPK) activity (GO: 0043405), including Ptprc, P2rx7, Map2k4, Trib3, Trib1, and Fgd4 was significantly over-expressed in the treated mice than in the controls (p = 0.0027). Moreover, Al-NPs induced the activation of ERK1 and p38 MAPK protein expression in the brain, but did not alter the protein expression of JNK, when compared to the control. These data demonstrate that the nasal exposure of Al-NPs can permeate the brain via the olfactory bulb and modulate the gene and protein expression of MAPK and its activity.