• Title/Summary/Keyword: broad head

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A Study of Costume in Three Han Era - researching into the "Samkukgy"Tongyjeon - (삼한의 복식에 대한 연구 -"삼국지" 魏志 동이전을 통하여-)

  • 정혜경
    • Journal of the Korean Society of Costume
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    • v.51 no.4
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    • pp.113-128
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    • 2001
  • The objective of this study is to research the costume of Three Han to be recorded in -$\ulcorner$Samkukgy$\urcorner$ Tongyjeon. They were written tattoos, broad head, physique, hair style, dress. accessories-lnsu, beads, head dress, shoes and cloths in Tongy-jeon. The results of this study are as fellows: Tattoos were common in Three Han. Those may be carved by chinese ink on body except a face. Broad head was Byonhan and Jinhan s customs. The physique of Mahan and Byonhan s men was tall and big. The hair style was just topknot not to put on a hat in Mahan, long hair In Byonhan and short hair for slaves in Jinhan. And then tattoos, flat head and skull, long hair style were the southern style. The dresses were two piece style-po and trousers. The shoes were made of leather. Those were the northern style. Eui-Chek, In-Su were royal gift of china. And they put valuable on beads, not gold, silver and golden embroidery cloths. This was different from other countries, And so we can find the variety of cultures at that time. The varieties came from the southern, northern, china and unique style.

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The Presence of Neural Stem Cells and Changes in Stem Cell-Like Activity With Age in Mouse Spiral Ganglion Cells In Vivo and In Vitro

  • Moon, Byoung-San;Ammothumkandy, Aswathy;Zhang, Naibo;Peng, Lei;Ibrayeva, Albina;Bay, Maxwell;Pratap, Athira;Park, Hong Ju;Bonaguidi, Michael Anthony;Lu, Wange
    • Clinical and Experimental Otorhinolaryngology
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    • v.11 no.4
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    • pp.224-232
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    • 2018
  • Objectives. Spiral ganglion neurons (SGNs) include potential endogenous progenitor populations for the regeneration of the peripheral auditory system. However, whether these populations are present in adult mice is largely unknown. We examined the presence and characteristics of SGN-neural stem cells (NSCs) in mice as a function of age. Methods. The expression of Nestin and Ki67 was examined in sequentially dissected cochlear modiolar tissues from mice of different ages (from postnatal day to 24 weeks) and the sphere-forming populations from the SGNs were isolated and differentiated into different cell types. Results. There were significant decreases in Nestin and Ki67 double-positive mitotic progenitor cells in vivo with increasing mouse age. The SGNs formed spheres exhibiting self-renewing activity and multipotent capacity, which were seen in NSCs and were capable of differentiating into neuron and glial cell types. The SGN spheres derived from mice at an early age (postnatal day or 2 weeks) contained more mitotic stem cells than those from mice at a late age. Conclusion. Our findings showed the presence of self-renewing and proliferative subtypes of SGN-NSCs which might serve as a promising source for the regeneration of auditory neurons even in adult mice.

Shape Control and Characterization of One-dimensional ZnO Nanostructures through the Synthesis Procedure (합성절차에 따른 1차원 ZnO 나노구조의 형태조절과 특성평가)

  • Kong, Bo-Hyun;Park, Tae-Eun;Cho, Hyung-Koun
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.19 no.1
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    • pp.13-17
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    • 2006
  • The one-dimensional ZnO nanostructures prepared through thermal evaporation under various cooling down procedures by changing the flow rates of the carrier gas and the reactive gas were investigated. The nanorod structures were changed into the nanonail types with a broad head through the reduction of the flow rate of the carrier gas. The decrease of the reactive gas reduced the length of the nail heads due to the limited mass transport of reactive gas. The intensity ratio of the ultraviolet emission/green emission of photoluminescence was proportional to the length of the broad head showing a larger surface area. The vertically aligned nanostructures were grown along the [0001] direction of ZnO regardless of the aligned directions. The crystal direction of the nanostructures was determined by that of the initial ZnO crystal.

A Case of Fibromatosis of Hyphopharynx (하인두에 발생한 섬유종증 1예)

  • Seo, Jung-Ok;Lim, Ju-Shin;Bong, Jeong-Pyo;Jung, Soon-Hee;Abdul-Ghafar, Jamshid
    • Korean Journal of Head & Neck Oncology
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    • v.25 no.2
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    • pp.168-170
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    • 2009
  • Fibromatosis is a broad group of benign fibroblastic proliferation that shows locally aggressive growth but never metastasize. Common anatomic sites include abdominal wall, extremity, and mesentery. Little is reported about clinical features and outcome of fibromatosis of the head and neck. The treatment of choice is wide excision, which is often difficult. Postoperative recurrence rates are high. We recently confirmed a unique case of fibromatosis occurred on the hypopharynx of 44-year-old male patient and report this interesting case with review of literature.

Design of Broad Band Piezoelectric Transducer Using Matching Layers (정합층을 이용한 광대역 압전 진동체 설계)

  • 조치영;서희선
    • Journal of KSNVE
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    • v.6 no.6
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    • pp.749-754
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    • 1996
  • In this paper, a design method of matching layers is presented for the sandwich type broad band underwater acoustic vibrators. The characteristic impedances of matching layers are determined to be matched to the characteristic impedance of head mass material. For the dynamic characteristic analysis of the sandwich type transducers, one dimensional FEM technique is also introduced. A test vibrator with the quarter wave matching layers has been designed to verify the proposed method. And the wide band characteristics of the input impedance and transmitting voltage response (TVR) are investigated.

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On the Calibration of Impact Hammer Sensitivity (충격 해머의 感度補正)

  • 한상보
    • Journal of KSNVE
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    • v.1 no.2
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    • pp.115-120
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    • 1991
  • The impact hammer is extensively used in experimental modal analysis as a means to provide force over a broad range of frequencies. The hammer mass and the impact head are often changed to achieve a desired impact time duration with its corresponding input frequency spectrum, these mass changes affect the performance and sensitivity of the force transducer employed to measure the impact force. Both a mathematical model describing the effects of impact head and hammer mass on the performance of the force transducer and experimental verification of this model are presented here.

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A Case of Infantile Myofibroma in the Pre-auricular Area (전이개에 발생한 유아성 근섬유종 1례)

  • Kim, Deok Su;Jang, Gyu Ho;Kim, Jeong Kyu
    • Korean Journal of Head & Neck Oncology
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    • v.32 no.2
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    • pp.9-13
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    • 2016
  • Infantile myofibromatosis is a rare benign neoplasm which is usually found in males. Most cases of the infantile myofibromatosis are discovered before the age of two years and about half of cases are found at muscle, tendon, and soft tissue of head-neck region. However, it is especially uncommon that infantile myofibroma occurs at the pre-auricular area. In current case, we report a twenty two months old male patient with $2.5{\times}1.5cm$ sized pre-auricular mass at right side. It was surgically removed and histologically showed broad bundle of plump myoid spindle cells with eosinophilic cytoplasm and weakly positive smooth muscle actin expression in myoid cells. In three months of follow up, there was no recurrence.

Substrate Specificity of Cabbage Phospholipase D with Phospholipids Having Different Head Groups

  • 이지은;최명언
    • Bulletin of the Korean Chemical Society
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    • v.17 no.10
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    • pp.905-908
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    • 1996
  • A substrate specificity of cabbage phospholipase D (PLD) was studied using the synthetic phospholipids having different head groups. The phospholipids were synthesized from phosphatidylcholine and appropriate bases by transphosphatidylation of PLD. The bases used were ethanolamine, serine, ethanol and γ-hydroxybutyric acid. The phosphatidic acid, the product of PLD, was separated in TLC and measured densitometrically. The kinetic parameters were estimated for each substrate and the effects of pH, SDS, Ca2+ and other metal ions were examined. Vmax values found were 3.75, 2.36, 5.59, 1.63, 2.30 nmol/min/μg protein for phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylethanol, and phosphatidylburytic acid, respectively. These results indicate a broad specificity of cabbage PLD toward phospholipids with different head groups. Particularly phosphatidylserine was most easily hydrolyzed by PLD and its activity did not depend on Ca2+.

Energy Efficient Cluster Head Election Algorithm Considering RF-Coverage (RF-Coverage를 고려한 에너지 효율적인 클러스터 헤드 선출 알고리즘)

  • Lee, Doo-Wan;Han, Youn-Hee;Jang, Kyung-Sik
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.4
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    • pp.993-999
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    • 2011
  • In WSN, at the initial stage, sensor nodes are randomly deployed over the region of interest, and self-configure the clustered networks by grouping a bunch of sensor nodes and selecting a cluster header among them. Specially, in WSN environment, in which the administrator's intervention is restricted, the self-configuration capability is essential to establish a power-conservative WSN which provides broad sensing coverage and communication coverage. In this paper, we propose a communication coverage-aware cluster head election algorithm for Herearchical WSNs which consists of communication coverage-aware of the Base station is the cluster head node is elected and a clustering.

A Case Study about Soeumin with Cognitive Disorder from Traumatic Head Injury (외상성 뇌손상으로 인지기능 장애가 유발된 소음인 환자 치험 1례)

  • Cho, Sung-Kyoo;Bae, Hyo-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.19 no.2
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    • pp.204-212
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    • 2007
  • 1. Objectives The purpose of this case is to report that a Soeumin patient with cognitive disorder from traumatic head injury needed to be managed with the consideration of the difference of Nature and Emotion(性情). 2. Methods To evaluate the patient's cognition disorder and mental state, we performed the MMSE(Mini-Mental State Examination) and the MMPI(Minnesota Multiphasic Personality Inventory). and he was diagnosed as Soeumin and treated by Kwakhyangchungki-san(藿香正氣散) mainly. 3. Results and Conclusions (1) In this case, we observed specifically-biased Nature and Emotion(性情) of Soeumin like ‘恒欲處而不欲出’, ‘恒欲爲雌而不欲爲雄’, ‘喜別人之助己也’. ‘喜好不定’, ‘不安定之心’ (2) The management of Soeumin with cognitive disorder from traumatic head injury is that he or she should live together his or her family, and have an active manner with a generous and broad-minded mental attitude. (3) A therapist must give a patient mental support and inspire him or her with courage. (4) The deviation of Nature and Emotion(性情) should be taken into consideration when we manage the patient with cognitive disorder from traumatic head injury.

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