• Title/Summary/Keyword: Face Covering

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AN EXPERIMENTAL STUDY ON THE EFFICIENCY OF A LOCAL VENTILATION SYSTEM AND THE PROTECTING FACE MASKS IN DENTAL LABORATORIES

  • Kim, Uoong-Chul
    • Journal of Technologic Dentistry
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    • v.11 no.1
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    • pp.95-102
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    • 1989
  • This study was performed to study the efficiency of a local ventilation system, installed in dental laboratories, and of two types of protecting face masks. The dust originating from the workpiece as well as from the wheels and stones was collected on air filters in the cutting cycle during coarse and fine grinding, and in the subsequent polishing procedures of each specific dental material. The efficiency of the ventilation system was measured on the basis of weight reduction of dust in the breathing air at a distance about 20-40 cm from workpiece. The results were as follows: 1. Use of the local ventilation system reduced the amounts of respirable dust to an average level of 21.4%, although the efficiency of the local ventilation system varied depending upon materials used. 2. Mounting a nozzle on the tube improved the efficiency of the ventilation system considerably. The efficiency of the local ventilation system also increased as the workpiece was closing to the tube inlet. 3. With or without the local ventilation system, the distance between the position of the workpiece and sampler greatly affected the dust level. 4. The face masks covering the sampler improved the efficiency of the ventilation system considerably.

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A Study on the Origin and Clothing Composition of the Yemou (여모의 구성적 특징과 유래)

  • Chang, Inwoo
    • Journal of the Korean Society of Costume
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    • v.63 no.7
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    • pp.164-175
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    • 2013
  • This study examined the Yemou(a hat for a dead woman) from the ladies' clothes excavated from the Lady Lee's tomb in order to trace the significance of the clothing composition and its social origin in the Chosun dynasty. The compositional characteristic of Yemou covers the body of the hat which is not connected with the cover, Wonsal which has a round shape that covers the face of the dead body, and two Gae(a ribbon on the backside of a hat). Seongho Lee-ik(one of representative Confucian scholars in the Chosun dynasty) stated in his book entitled "Seongho Notes", that the structural elements of Yemou originated in Yum(wrapping cloth for the head of a dead body). According to Seongho, Yemou's body part came from the scarf used to cover the head. Wonsal(the cloth of round shape for covering the face) and Gae were derived from Yum made of two ends of long cloth for covering and binding the head of a dead body. Yongjae Kim-kunhang(one of Confucian scholars in the late-Chosun dynasty) demonstrated in his "Yongjae Collection" the social background of the emergence of Yemou. Yemou was the hat produced from the process of nationalizing the Chinese courtesy of clothing. In other words, Bokgun(a man's hat) in the Chosun dynasty replaced the Chinese Yum. Unlike the Chinese custom, man and woman in the Chosun dynasty wore different clothes respectively. According to the clothing custom of the Chosun dynasty a woman wore a female hat, Yemou instead of men's Bokgun.

Temple and Postauricular Dissection in Face and Neck Lift Surgery

  • Lee, Joo Heon;Oh, Tae Suk;Park, Sung Wan;Kim, Jae Hoon;Tansatit, Tanvaa
    • Archives of Plastic Surgery
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    • v.44 no.4
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    • pp.261-265
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    • 2017
  • Periauricular paresthesia may afflict patients for a significant amount of time after facelift surgery. When performing face and neck lift surgery, temple and posterior auricular flap dissection is undertaken directly over the auriculotemporal, great auricular, and lesser occipital nerve territory, leading to potential damage to the nerve. The auriculotemporal nerve remains under the thin outer superficial fascia just below the subfollicular level in the prehelical area. To prevent damage to the auriculotemporal nerve and to protect the temporal hair follicle, the dissection plane should be kept just above the thin fascia covering the auriculotemporal nerve. Around the McKinney point, the adipose tissue covering the deep fascia is apt to be elevated from the deep fascia due to its denser fascial relationship with the skin, which leaves the great auricular nerve open to exposure. In order to prevent damage to the posterior branches of the great auricular nerve, the skin flap at the posterior auricular sulcus should be elevated above the auricularis posterior muscle. Fixating the superficial muscular aponeurotic system flap deeper and higher to the tympano-parotid fascia is recommended in order to avoid compromising the lobular branch of the great auricular nerve. The lesser occipital nerve (C2, C3) travels superficially at a proximal and variable level that makes it vulnerable to compromise in the mastoid dissection. Leaving the adipose tissue at the level of the deep fascia puts the branches of the great auricular nerve and lesser occipital nerve at less risk, and has been confirmed not to compromise either tissue perfusion or hair follicles.

A Study on the Beauty of the Islamic Folk Costume, Affected by Islamism -Focusing on the Islam Culture Area in Southwest Asia- (이슬람교 영향을 받은 이슬람 민속복식 미의 연구 -서남아시아의 이슬람 문화권을 중심으로-)

  • Seo, Bong-ha;Kim, Min-Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.5
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    • pp.808-820
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    • 2008
  • The costume of Islam cultural area has been affected by the strict social structure, formed by religion, and traditional costume of Islam has been maintained up to these days under the influence of religion. Islam Traditional Costume, which is the succession of the traditional costume of southwest Asia region, became armed with the form of closed costume due to the chastity and oppression. There are figurative features of Islam Folk Costume; first, the dimensional form due to the ampleness, covering the body, second, the reinforcement of closed form such as chador and burqa, third, the symbolism such as the adornment or incantational ornament, which has been inherited from the former times of Islam era, fourth, the color, simplified with black and white. The aesthetic values of Islam folk costume are represented with 'The beauty of abstinency', suppressing the ornamentation and color, caused by the strict social atmosphere under the influence of the form of traditional costume and religion, 'The beauty of concealment' due to the closeness, with affluent costume forms, covering the body and even concealing the face, and 'The beauty of symbol' which is demonstrated with incantational ornamentation of face and interior decoration. In some nations amongst Islam nations, the wearing of hijab is strictly regulated but black chador and burqa are regarded as negative symbols, representing the closeness and oppression of Islam. It is the product of Orientalism from the western perspective. The Islam Hijab culture is the symbol of oppression towards women, but, on the other hand, it is the device to protect women and the traditional culture, symbolizing the identity.

Multiple Approaches and Participation Rate for a Community Based Smoking Cessation Intervention Trial in Rural Kerala, India

  • Jayakrishnan, Radhakrishnan;Mathew, Aleyamma;Uutela, Antti;Auvinen, Anssi;Sebastian, Paul
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.5
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    • pp.2891-2896
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    • 2013
  • Background: To illustrate multiple approaches and to assess participation rates adopted for a community based smoking cessation intervention programme in rural Kerala. Materials and Methods: Resident males in the age group 18-60 years who were 'current daily smokers' from 4 randomly allocated community development blocks of rural Thiruvananthapuram district, Kerala (2 intervention and 2 control groups) were selected. Smoking status was assessed through house-to-house survey using trained volunteers. Multiple approaches included awareness on tobacco hazards during baseline survey and distribution of multicolour anti-tobacco leaflets for intervention and control groups. Further, the intervention group received a tobacco cessation booklet and four sessions of counselling which included a one-time group counselling cum medical camp, followed by proactive counselling through face-to-face (FTF) interview and mobile phone. In the second and fourth session, motivational counselling was conducted. Results: Among 928 smokers identified, smokers in intervention and control groups numbered 474 (mean age: 44.6 years, SD: 9.66 years) and 454 respectively (44.5 years, SD: 10.30 years). Among the 474 subjects, 75 (16%) had attended the group counselling cum medical camp after completion of baseline survey in the intervention group, Among the remaining subjects (n=399), 88% were contacted through FTF and mobile phone (8.5%). In the second session (4-6 weeks time period), the response rate for individual counselling was 94% (78% through FTF and 16% through mobile phone). At 3 months, 70.4% were contacted by their mobile phone and further, 19.6% through FTF (total 90%) while at 6 months (fourth session), the response rate was 74% and 16.4% for FTF and mobile phone respectively, covering 90.4% of the total subjects. Overall, in the intervention group, 97.4% of subjects were being contacted at least once and individual counselling given. Conclusion: Proactive community centred intervention programmes using multiple approaches were found to be successful to increase the participation rate for intervention.

Introduction of Clinical and Laboratory Standards Institute Antibiotic Susceptibility Testing Subcommittee Meeting (Clinical and Laboratory Standards Institute의 항생제 감수성 검사 소위원회 회의 소개)

  • Chang, Chulhun L.
    • Annals of Clinical Microbiology
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    • v.21 no.4
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    • pp.69-74
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    • 2018
  • Laboratory medicine is a specialized division that supports physicians in the care of patients by providing rapid and accurate in vitro diagnostic tests. Standardization of every component of a specific test is essential for producing accurate results. The Clinical and Laboratory Standards Institute (CLSI) was founded to develop a formal consensus process for standardization in 1968, and has been publishing standards and guidelines covering all aspects of clinical, research, and other laboratory work. CLSI guidelines are widely used around the world for standardization. The CLSI antimicrobial susceptibility testing subcommittee (AST SC) consists of 6 standing and many ad hoc working groups. Members of the AST SC review submitted proposals and suggestions, decide on approving these submissions in face-to-face meetings held twice a year, and revise CLSI documents accordingly. As these face-to-face meetings are open to anyone who registers to attend, I strongly encourage the members of our Society to attend and actively participate in document development.

Head Detection based on Foreground Pixel Histogram Analysis (전경픽셀 히스토그램 분석 기반의 머리영역 검출 기법)

  • Choi, Yoo-Joo;Son, Hyang-Kyoung;Park, Jung-Min;Moon, Nam-Mee
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.11
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    • pp.179-186
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    • 2009
  • In this paper, we propose a head detection method based on vertical and horizontal pixel histogram analysis in order to overcome drawbacks of the previous head detection approach using Haar-like feature-based face detection. In the proposed method, we create the vertical and horizontal foreground pixel histogram images from the background subtraction image, which represent the number of foreground pixels in the same vertical or horizontal position. Then we extract feature points of a head region by applying Harris corner detection method to the foreground pixel histogram images and by analyzing corner points. The proposal method shows robust head detection results even in the face image covering forelock by hairs or the back view image in which the previous approaches cannot detect the head regions.

A Study on the Effectiveness of Heat Infrared Imaging Method for Monitoring the Physical Condition of the Mortar Walls

  • Yoshioka Ryouhei;Tachiiri Kaoru;Asari Kimihiro;Gotoh Keinosuke
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.545-548
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    • 2004
  • In Japan for protecting the slides of steep sloped areas covering the face of slopes by sprayed mortar became popular since 1970s. But, these mortar walls are getting older now. In this background, this study aims to find ways to develop a diagnostic technique of these faces of slope without physically contacting or destroying them. In doing so, we have used heat infrared imaging processing method and developed a simulation model to predict the weak portion of the wall. The results revealed that, by following the model vacuum of mortar wall can be detected having thickness up to 15cm.

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How much Rice can Contribute to Sustainable Agriculture

  • Ito, Nobutaka
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.270-282
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    • 1996
  • The four subjects which we human beings are going to face and negotiate toward the 21 st century are (1) Population , (2) Food 93) Energy and (4) Environment . In this paper, rice is recommended and proposed as one of the most valuable key resources for the purpose of covering those four subjects with harmonic progress and promotion of the economic development and growth . The historical background and the current status force producting in world wide were reviewed. To meet those subjects, various methods of utilizing rice were introduced and proposed, how could be usefully utilized and processed as food, energy and the role played by rice plant in absorbing carbon dioxide produced.

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Case Study of Slope Protection Method using GeoComb (지오콤을 이용한 사면녹화공법의 현장적용 사례)

  • Oh, Young-In;Kim, Sung-Hwan;Yuu, Jung-Jo;Shim, Jin-Seap
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.974-979
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    • 2008
  • The purpose of this study was to evaluate the effect of vegetation on the cutting slope applied by vegetation system in the whole land. The engineering characteristics of slopes were investigated using the face mapping and physical tests. From the statistical methods, a relationship between a geologic stratum and degree of covering was independent. Therefore, the afforestation of slope was affected more by condition of vegetation as direction and opening of joints, and a topsoil state than by conventional classification of layer. It was concluded that the adjustable vegetation on the slope considering condition of geometric shape of slope, joint data and spontaneous type could make useful early afforestation.

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