• Title/Summary/Keyword: smell

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Virtual Reality Applications with Haptic Feedback (헵틱 피드백을 갖는 가상현실 응용 사례)

  • Yoon-Sang Kim;Do-Hoe Kim
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.25 no.6
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    • pp.12-16
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    • 2002
  • Virtual reality (VR) opened the possibility of moving beyond the 2-D world of conventional desktop systems to an immersive, multi-sensory environment generated by computer graphics. Haptic feedback (Haptics) is now starting to get recognition and use in intensive applications for manipulation, while smell and taste feedback are at the stage of early research. This paper reviews some current works on increased haptic feedback augmentation in virtual reality applications.

Tabletop Display System Connected with Olfactory Display

  • Kanazawa, Fumihiro;Sakamoto, Kunio;Nomura, Shusaku;Hirotomi, Tetsuya;Shiwaku, Kuninori;Hirakawa, Masahito
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1312-1315
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    • 2009
  • An olfactory display is a device that delivers smells to the nose. It provides us with special effects, for example to emit smell as if you were there or to give a trigger for reminding us of memories. The authors have developed a tabletop display system connected with the olfactory display.

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Antilipid Peroxidative Effect of Houttuynia cordata (즙채의 과산화지질 생성 저해효과)

  • 김주향;양기숙
    • YAKHAK HOEJI
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    • v.45 no.5
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    • pp.494-499
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    • 2001
  • Houttuynia cordata (Saururaceae) has pungent smell and taste. It has been regarded as detoxicant, antipyretic, antiinflammantory and diuretic agents. In order to evaluate antioxidative and antilipidperoxidative efficacies, its fractions ($H_2O$, 20% MeOH, 40% MeOH, 60% MeOH, 170% MeOH) were measured by DPPH method and TBARS assay on rat liver homogenate. It was revealed that 60% MeOH fractions had potential antioxidative activity and inhibited lipid peroxidation significantly: In active fractions, we isolated rutin, hyperin, quercitrin and quercetin.

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Study on design of drug detection drones using smell discrimination and tracking sensor (냄새 구별과 추적 센서를 이용한 약물탐지 드론 설계 연구)

  • Yoo, Hye-Bin;Kim, Sang-Hoon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2018.10a
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    • pp.130-132
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    • 2018
  • 후각과 관련된 연구가 활발해짐에 따라 응용 분야도 동시에 넓어지고 있다. 공기 중에 돌아다니는 자연적인 냄새뿐만 아니라 특정 약물의 화학적 성분을 분석하는 방식을 신경망 알고리즘을 이용해 구분하고 퍼지 추론 방식으로 농도를 측정하고 경로 탐색 알고리즘과 DIY드론을 이용하여 약물의 위치를 탐지하게 하는 것이 최종 목표이다.

A Study on the Perception and Preference of the Korean Kimchi by the Chinese International Students in Jeonbuk Area (전북지역 중국 유학생의 김치에 대한 인식 및 기호도 연구)

  • Meng, Bing Xu;Lee, Young Sook;Kim, Yong Suk;Rho, Jeong Ok
    • Journal of the East Asian Society of Dietary Life
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    • v.23 no.3
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    • pp.273-281
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    • 2013
  • The study is being conducted to investigate the perceptions and preferences of the Korean kimchi by the Chinese international students in Jeonbuk area. Self-administered questionnaires were collected from 197 male (48.9%) and 203 female (51.1%) students. Statistical data analysis is being completed using SPSS v. 12.0. Approximately 95% of Chinese female and 91% of male students know about kimchi before coming to Korea through the Korean movies and dramas. The perceptions for kimchi according to the residence period showed a significantly difference 'kimchi is a nutritious and health food' (p<0.05), 'kimchi has good taste but too hot to eat' (p<0.05), and 'Kimchi is difficult to eat because of the smell' (p<0.05). Approximately 52% of Chinese female and 44% of male students consumed kimchi once or twice a day. The most popular form of kimchi among the 13 varieties was baech kimchi. Chinese female students preferred the 'kkakdugi' (p<0.05), 'chonggak kimchi' (p<0.05), and 'young radish kimchi' (p<0.05) more than the male students. The most liked reason was the 'refreshing taste' (44.8%) whereas the most disliked reasons were 'unfamiliar with eating kimchi' (28.7%) and 'sour taste' (24.2%). Approximately 85% of Chinese female and 60% of male students would like to experience making kimchis by themselves. Extended kimchi consumptions for Chinese answered 'not too fish-like smell' (36.0%), 'not too overly-ripe' (34.5%), 'not too sour' (25.4%), and 'not too hot' (25.4%). Therefore, in order to improve the awareness for kimchi among Chinese students, we need to relate kimchi with the taste of Chinese traditional foods.

Effects of onion and pear on Kimchi Quality Characteristics during Fermentation (양파와 배의 첨가가 김치의 품질 특성에 미치는 영향)

  • Choi, Eun-Jung;Cho, Shin-Ho
    • Korean journal of food and cookery science
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    • v.25 no.2
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    • pp.243-251
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    • 2009
  • Changes in pH and acidity were investigated in kimchi containing different amounts of added onion and/or pear during fermentation at $10^{\circ}C$. As the fermentation period increase, the pH and sugar contents of the onion and/or pear kimchi were higher compared to the control kimchi. However, the acidity of the kimchi containing onion and/or pear was lower than that of the control. To enhance the acceptance of kimchi, the optimal conditions for the addition of onion and pear were evaluated with the central composite design, ANOVA, and response surface methodology. According to variations in the mixing ratio of onion and pear, smell, taste and overall acceptability differed significantly, but the appearance and texture were not different. The optimal levels of onion and pear, predicted on the basis of each corresponding sensory parameters for kimchi, were $4.55{\sim}5.00%$ and $0{\sim}0.30%$ for smell, 2.61% and 2.38% for taste and 2.78% and 2.57% for overall acceptability, respectively.

The Research about Image on Korean Medicine (한의학 관련 이미지 연구)

  • Kim, Jae-Ik;Myeong, Ye-Seul;Ahn, Soo-Yeon;Lee, Yeong-Ji;Cho, Chung-Sik
    • The Journal of Internal Korean Medicine
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    • v.35 no.3
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    • pp.354-365
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    • 2014
  • Objectives: Recently, the utility rate of Korean-Medical service has been a 6 percent of the domestic market share in medical service, so there is a lot of effort to increase utility rate of Korean medical service. However, in spite of the importance of image to promotion, there are still few studies about image of Korean medicine. Thus, the purpose of this study was to suggest ways to increase utility rate of Korean medical service by surveying and analysing recognition of image of Korean Medicine. Methods: People aged between 20s and 40s were targets of investigation. We divided respondents into three groups depending on relation approximation with Korean medicine (weak-related group, normal-related group, strong-related group). The questionnaire consisted of questions about images of Korean medicine, conducted through online and personal interviews. Results: In total, 282 members responded to the survey and the results of the analysis were as follows. The more a person was related to Korean medicine, the greater the tendency to experience Korean medical service. The most associated taste about Korean medical institutions was Bitterness, smell was smell of Korean medicine, color was yellow, feeling was warm, sound (instrument) was drum, and treatment pattern was Acupuncture, respectively. The most associated image of acupuncture was painful, and the most associated age of Korean medical doctors was 40s. The most associated general term of Korean medicine was physical constitution, and most associated pathological term was extravasated blood. Conclusions: This study can be very useful for future image marketing of Korean medicine because there have been no other studies about image on Korean medicine before now. But this study has also some limits like area, respondent selection, etc., so a more detailed and comprehensive survey is needed.

Effect of municipal sludge from drainage facility on foul smell (도시내 배수설비 슬러지가 악취에 미치는 영향 연구)

  • Yu, Dae-Hyun;Park, Jihoon;Lee, Yong-Hoon;Lee, Jang-Hown;Kang, Seon-Hong
    • Journal of Korean Society of Water and Wastewater
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    • v.28 no.3
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    • pp.315-324
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    • 2014
  • The residents' odor complaint is steadily increasing by odor causing from sewage system. A current drainage facilities and septic tank are included in the individual sewerage according to Sewerage Act. However, definitions and legal standards of drainage tank are insufficient. In addition, specifications and maintenance standards related to structure and size are not established. In this research, effect of drainage tank in individual sewage facilities on the odor occurrence was studied and the concentrations of $H_2S$ and composite odor were measured. From the measurements, the concentration of $H_2S$ and composite odor were 1 ppm ~ 5 ppm and 1.04 OU ~ 4.05 OU, respectively, before pump operation. Also, the concentration of $H_2S$ and composite odor were 5 ppm ~ 33 ppm and 5.10 OU ~ 35.04 OU, respectively, after pump operation. The concentration of SS in the effluent from drainage tank was ranged from 840 mg/L to 1,980 mg/L. These high concentration of SS seemed to be the major source of foul smell when high concentrated suspended solids in the public sewerage system were decomposed and then emitted. In this research, correlation coefficient ($R^2$) between $H_2S$ and composite odor before and after pumping were 0.925 and 0.918, respectively.

The experiment of process efficiency and salt elimination in food waste compost using triple salt (삼중염을 이용한 음식물 쓰레기 퇴비 중 염분제거 및 공정효율화 실험)

  • Kim, Nam-Cheon;Jang, Byung-Man
    • Journal of the Korea Organic Resources Recycling Association
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    • v.14 no.2
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    • pp.83-90
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    • 2006
  • The NaCl contents of food waste composts made by various techniques known up to now were under the level of 1% by fresh weight basis. But these techniques has some problem that is environment pollution from treated water and high equipment cost. The application to agricultural land of food waste compost that is not sufficiently removed NaCl was considered to be improper due to salt accumulation in soils and plant growth inhibition by salt stress. The purpose of this study is to decompose NaCl in food waste compost using triple salt and this method is differ from existing chemical method. Also, reaction of NaCl with triple salt produced KCl that is basic material of potassium fertilizer. Moreover Also, there was temperature rise of average $5^{\circ}C$ as result that apply triple salt in food waste 600 ton in food wast composting productive capacity. Obvious odious smell reduction effect appeared pretreatment process and fermentation process with temperature rise and this is because triple salt activation of aerobe and removes odious smell cause material by salt content decrease effectively.

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