• 제목/요약/키워드: discrimination of smell

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명대(明代) 진단학(診斷學) 발전사(發展史)에 관한 연구(硏究) (The Studies on the History of Development of Dyagnotics of Myeong Dynasty)

  • 이흥구;윤창열
    • 한국한의학연구원논문집
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    • 제7권1호
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    • pp.17-37
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    • 2001
  • This report studies the history of diagnostic development of Myeong Dynasty(明代). This period is the success of Keum-Won Dynasty(金元代) when the special development of medicin was taken, and is the origin of the developement of medicine of Cheong Dynasty(淸代). The conclusion is like this. The palpitation was developed to be papular, to illustrate and to be simple. The development of seeing diagnostics of Myeong Dynasty was characterized the entrance of special book of seeing diagnostics, the study of finger print of child and the development of seeing tongue diagnostics. In Myeong Dynasty, discrimination of smell(辨氣) theory was developed with the development of fever school. The development of discrimination of symptoms of Myeong Dynasty was finished in every realms, specially in discrimination of symptoms of fever.

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

  • 유혜빈;김상훈
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2018년도 추계학술발표대회
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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.

뉴로모픽 감각 인지 기술 동향 - 촉각, 후각을 중심으로 (Neuromorphic Sensory Cognition-Focused on Touch and Smell)

  • 박강호;이형근;강유성;김도엽;임정욱;제창한;윤조호;김정연;이성규
    • 전자통신동향분석
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    • 제38권6호
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    • pp.62-74
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    • 2023
  • In response to diverse external stimuli, sensory receptors generate spiking nerve signals. These generated signals are transmitted to the brain along the neural pathway to advance to the stage of recognition or perception, and then they reach the area of discrimination or judgment for remembering, assessing, and processing incoming information. We review research trends in neuromorphic sensory perception technology inspired by biological sensory perception functions. Among the various senses, we consider sensory nerve decoding technology based on sensory nerve pathways focusing on touch and smell, neuromorphic synapse elements that mimic biological neurons and synapses, and neuromorphic processors. Neuromorphic sensory devices, neuromorphic synapses, and artificial sensory memory devices that integrate storage components are being actively studied. However, various problems remain to be solved, such as learning methods to implement cognitive functions beyond simple detection. Considering applications such as virtual reality, medical welfare, neuroscience, and cranial nerve interfaces, neuromorphic sensory recognition technology is expected to be actively developed based on new technologies, including combinatorial neurocognitive cell technology.

재첩국 자숙 조건 (Processing Condition of Corbicula elatior Broth by Hot Water Extraction)

  • 강동수;김해섭;이영재;곽지만;김혜리
    • 생명과학회지
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    • 제11권3호
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    • pp.203-210
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    • 2001
  • To produce the instant marsh calm(Corbicula elatior) soup with abundant taste and flavor. optimum conditions of heating temperature and time for extraction were investigated. Excretion rate in a pre-treatment for excretion of estuary was 82% at 15% salt concentration for 6 hr and 95% at pH 7.5 for 10 hr. The contents of glycogen and amino-nitrogen were the most high levels in the treatments extracted at 9$0^{\circ}C$ for 3 hr, at 10$0^{\circ}C$ for 1.5 hr and at 11$0^{\circ}C$for 1 hr. The contents of total free amino acids in the extracts treated at 9$0^{\circ}C$, 10$0^{\circ}C$ and 11$0^{\circ}C$ were 367.05mg/100g, 472.23 mg/100g and 463.54 mg/100g, respectively and optimal temperature was above 10$0^{\circ}C$. The mineral contents was the most high level for the extract treated at 10$0^{\circ}C$ for 1.5hr. The results of sensory evaluation showed that tastes for the marsh calm extracts had no significant discrimination, while external appearances and flavors for the extract done at 10$0^{\circ}C$ for 1.5 hr were excellent. The extracts at 10$0^{\circ}C$ showed a little dark color and those at 9$0^{\circ}C$ smell a little fish flavor.

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당귀작약산(當歸芍藥散)과 침 치료로 호전된 상기도 감염 후에 발생한 후각장애 1례 (A Case of Postviral Olfactory Disorder Treated with Dangguijakyak-san and Acupuncture)

  • 문영균;강세현;박중군;남혜정;김윤범;김규석
    • 한방안이비인후피부과학회지
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    • 제30권1호
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    • pp.118-125
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    • 2017
  • Objectives : The aim of this study was to report the effect of Dangguijakyak-san and acupuncture on postviral olfactory disorder. Methods : Dangguijakyak-san extract granule was administered three times a day. Acupuncture was applied to 11 acupoints(EX-HN3, GV20, GV23 and both side of LI04. LR03, LI20, EX-HN8) for 15 minutes once a week. Results : The score of olfactory threshold test and TDI(Threshold-Discrimination-Identification) score increased by 3 points. The subjective sense of smell was improved for the substances that could not previoulsy be smelled. Conclusions : This study shows the possibility of using Dangguijakyak-san and acupuncture to treat postviral olfactory disorder.

Olfactory Dysfunction in Nasal Bone Fracture

  • Kim, Sug Won;Park, Beom;Lee, Tae Geun;Kim, Ji Ye
    • 대한두개안면성형외과학회지
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    • 제18권2호
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    • pp.92-96
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    • 2017
  • Background: All nasal bone fractures have the potential for worsening of olfactory function. However, few studies have studied the olfactory outcomes following reduction of nasal bone fractures. This study evaluates posttraumatic olfactory dysfunction in patients with nasal bone fracture before and after closed reduction. Methods: A prospective study was conducted for all patients presenting with nasal bone fracture (n=97). Each patient consenting to the study underwent the Korean version of Sniffin' Sticks test (KVSS II) before operation and at 6 month after closed reduction. The nasal fractures were divided according to the nasal bone fracture classification by Haug and Prather (Types I-IV). The olfactory scores were compared across fracture types and between preoperative and postoperative settings. Results: Olfactory dysfunction was frequent after nasal fracture (45/97, 46.4%). Our olfactory assessment using the KVSS II test revealed that fracture reduction was not associated with improvements in the mean test score in Type I or Type II fractures. More specifically, the mean posttraumatic Threshold, discrimination and identification score decreased from 28.8 points prior to operation to 23.1 point at 6 months for Type II fracture with septal fracture. Conclusion: Our study has revealed two alarming trends regarding post-nasal fracture olfactory dysfunction. First, our study demonstrated that almost half (46.4%) of nasal fracture patients experience posttraumatic olfactory dysfunction. Second, closed reduction of these fractures does not lead to improvements olfaction at 6 months, which suggest that olfactory dysfunction is probably due to factors other than the fracture itself. The association should be further explored between injuries that lead to nasal fracture and the mechanism behind posttraumatic olfactory dysfunction.

차세대 멀티미디어 통신을 위한 후각정보 측정데이터의 독립성분분석 (Independent Component Analysis Applied on Odor Sensing Measurement Data for Multimedia Communication)

  • 권기현;최형진;황성호;주상렬
    • 한국정보통신학회논문지
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    • 제13권8호
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    • pp.1679-1686
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    • 2009
  • 후각 정보의 실감성을 높일 수 있는 멀티미디어 통신 시스템에서 후각정보 전달을 위한 오더(odor) 센싱 시스템 및 관련 신호 처리 기술 개발은 차세대 멀티미디어 산업을 위한 핵심 과제로 떠오르고 있다. 오더 센싱 시스템의 성능 측정에 전통적으로 많이 사용된 방법은 주성분분석(PCA)이다. PCA는 분산에 기반한 도구로서 많은 경우 잘 동작한다. 그러나 오더 센싱 측정 데이터에 대해서는 의미 있는 값을 표시하는 것에 한계가 있다. 이 논문은 독립성분분석(ICA)을 사용하여 오더 센싱 데이터를 분석하는 방법을 설명한다. PCA와 ICA의 차이를 실질적인 측정데이터를 사용하여 비교하도록 한다. 실험을 통해 ICA가 개선된 변별력으로 센서의 경향 분석, 차원축소, 보다 적합한 데이터 표현 등에 있어 PCA보다 나은 결과를 도출함을 보인다.