• Title/Summary/Keyword: Superior-type

Search Result 1,546, Processing Time 0.028 seconds

Novel Oscillator Incorporating a Compact Microstrip Ring Type Resonant Cell with High Efficiency and Superior Harmonic Characteristics

  • Hwang Cheol-Gyu;Myung Noh-Hoon
    • Journal of electromagnetic engineering and science
    • /
    • v.5 no.2
    • /
    • pp.92-96
    • /
    • 2005
  • This paper presents a novel microwave oscillator incorporating a simple microstrip ring type resonant cell as its terminating resonance component. Reduced chip size, higher dc-ac power efficiency, superior harmonic characteristics can be achieved from the introduction of a compact microstrip ring resonator cell. The oscillator provides a second harmonic suppression of 26.51 dB and the output power of 2.046 dBm at 2.11 GHz.

Ultrastructural Study on Development of the Superior Cervical Ganglion of Human Fetuses (인태아 상경신경절 발육에 관한 전자현미경적 연구)

  • Kim, Dae-Young;Kim, Baik-Yoon;Yoon, Jae-Rhyong
    • Applied Microscopy
    • /
    • v.28 no.2
    • /
    • pp.139-158
    • /
    • 1998
  • The development of the superior cervical ganglion was studied by electron microscopic method in human fetuses ranging from 40 mm to 260 mm of crown-rump length (10 to 30 weeks of gestational age). At 40 mm fetus, the superior cervical ganglion was composed of clusters of undifferentiated cell, primitive neuroblast, primitive supporting cell, and unmyelinated fibers. At 70mm fetus, the neuroblasts and their processes were ensheated by the bodies or processes of satellite cells. The cytoplasm of the neuroblast contained rough endoplasmic reticulum, mitochondria, Golgi complex, Nissl bodies and dense-cored vesicles. As the neuroblasts grew and differentiated dense-cored vesicles moved away from perikaryal cytoplasm into developing processes. Synaptic contacts between the cholinergic axon and dendrites of postganglionic neuron and a few axosomatic synapses were first observed at 70 mm fetus. At 90 mm fetus the superior cervical ganglion consisted of neuroblasts, satellite cells, granule-containing cells, and unmyelinated nerve fibers. The ganglion cells increased somewhat in numbers and size by 150 mm fetus. Further differentiation resulted in the formation of young ganglion cells, whose cytoplasm was densely filled with cell organelles. During next prenatal stage up to 260 mm fetus, the cytoplasm of the ganglion cells contained except for large pigment granules, all intracytoplasmic structures which were also found in mature superior cervical ganglion. A great number of synaptic contact zones between the cholinergic preganglionic axon and the dendrites of the postganglionic neuron were observed and a few axosomatic synapses were also observed. Two morphological types of the granule-containing cells in the superior cervical ganglion were first identified at 90 mm fetus. Type I granule-containing cell occurred in solitary, whereas type II tended to appeared in clusters near the blood capillaries. Synaptic contacts were first found on the solitary granule-containing cell at 150 mm fetus. Synaptic contacts between the soma of type I granule-containing cells and preganglionic axon termials were observed. In addition, synaptic junctions between the processes of the granule- containing cells and dendrites of postganglionic neuron were also observed from 150 mm fetus onward. In conclusion, superior cervical ganglion cells and granule-containing cells arise from a common undifferentiated cell precursor of neural crest . The granule-containg cells exhibit a local modulatory feedback system in the superior cervical ganglion and nay serve as interneurons between the preganglionic and postganglionic cells.

  • PDF

Meniscoid-type SuperrJior Labrum Associated with Internal Derangement of Shoulder Joint (견관절내 병변과 동반된 상부관절순의 반월상변형)

  • Choi Chang-Hyuk;Kwun Koing-Woo;Kim Shin-Kun;Lee Sang-Wook;Park Bum-Jin
    • Clinics in Shoulder and Elbow
    • /
    • v.2 no.1
    • /
    • pp.41-46
    • /
    • 1999
  • Glenoid labrum acts as one of static stabilizer of the glenohumeral joint. It deepens the glenoid socket and may also serve as a chock, acting as a wedge in preventing glenohumeral translation. Two types of variations in labral anatomy were noted by Detrisac and Johnson. Type A has a superior labrum that is detached centrally but well attached peripherally. The type B labrum is well attached centrally and peripherally at all sites. A meniscoid-type labrum is thought to be normal unless there are splits or fragmentation of the overlying labral tissue. Meniscoid type labrum is different from SLAP II lesion in that it has a firm anchoring on the superior labrum. We observed four cases that had a meniscoid variant superior labrum, which covered the superior glenoid unusually larger than normal in the arthroscopic treatment of shoulder pathology including instability and rotator cuff diseases. We did arthroscopic reshaping and debridement of meniscoid variant superior labrum combined with pathologic change of the glenohumeral joint. Further study would be required for understanding the mechanism of the development of meniscoid variant labrum and its clinical significance.

  • PDF

FINITE ELEMENT ANALYSIS OF RECONSTRUCTION OF MANDIBULAR SYMPHYSIS DEFECTS USING RECONSTRUCTION PLATES (유한 요소법을 이용한 하악골 이부 결손수복에 사용된 재건용 금속판의 응력분포에 관한 연구)

  • Oh, Jung-Hwan;Han, Jung-Soo;Min, Jee-Hyun;Mun, Sung-Jun;Lee, Baek-Su
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.30 no.6
    • /
    • pp.513-517
    • /
    • 2008
  • Purpose: This study aimed to evaluate distribution and maximal value of mechanical stresses on the reconstruction plate, bridging mandibular symphysis defect, and to optimize the most appropriate locations of the plate to distribute the stress causing the fracture of the plate. Materials and methods: Four types of reconstruction were constructed by different number and location of the reconstruction plates on the 3 D finite element model (FEM) of a human edentulous mandible; Type I: one plate on the inferior border of the anterior mandible, Type II: one plate on the middle of the anterior mandible, Type III: one plate on the superior border of the anterior mandible, and Type IV: two plates on the inferior and superior border of the anterior mandible. Results: The results showed that the maximal stress of type I (234.29 Mpa) was lower than that of type II (260.91 Mpa) and type III (247.37 Mpa), but higher than that of type IV (186.64 Mpa). We could also observe that the stresses are tending to focus on the inner side and inferior part of the plate which connected proximal segment from the vertical load. Conclusions: On the basis of the findings, it was concluded that using a plate on the inferior border of mandible or two plates on the inferior and superior border of mandible are more favorable to distribute mechanical stresses, which could reduce the fracture of the plate.

Production of ColE1 Type Plasmid by Escherichia coli $DH5\alpha$ Cultured Under Nonselective Conditions

  • PASSARINHA L. A.;DIOGO M. M.;QUEIROZ J. A.;MONTEIRO G. A.;FONSECA L. P.;PRAZERES D. M. F.
    • Journal of Microbiology and Biotechnology
    • /
    • v.16 no.1
    • /
    • pp.20-24
    • /
    • 2006
  • Plasmid DNA (pDNA) is a product of interest for many biopharmaceutical companies and research laboratories, because of increase in the number of gene therapy protocols that use nonviral vectors. This work was undertaken to study the effect of antibiotic and dissolved oxygen concentration (DOC) on the production of a ColE 1-type plasmid (pVAX1-LacZ) hosted in Escherichia coli $DH5\alpha$ and cultured in a batch fermentor with 0.751 of Terrific Broth. A decrease in the DOC from $60\%\;to\;5\%$ was shown to increase the specific pDNA concentration approximately 1.5-fold, due to the downregulation of growth. Additionally, this increase in the pDNA concentration led to a 2.2-fold increase in the purity of cell lysates obtained after cell lysis. However, the use of higher DOC led to 2.8-fold higher volumetric productivity as a consequence of a faster growth rate, reducing the fermentation time from 24 to 8 h. Interestingly, the specific pDNA concentration, and pDNA productivity and purity were always higher $(10-15\%)$ in the absence of antibiotic. Overall, the data indicate that nonselective conditions can be used without compromising yield, productivity, and purity of pDNA.

A Case Report of Conservative Treatment for the Amatuer Baseball Player diagnosis with type 2 Superior labral anterior posterior lesion (제2형 상부관절와순파열로 진단받은 사회인 야구선수에 대한 보존적 치료 치험 1례)

  • Jin, Eun-Seok;Yeom, Sun-Kyo;Kim, Seok;Lee, Jin-Hyuk
    • The Journal of Churna Manual Medicine for Spine and Nerves
    • /
    • v.5 no.2
    • /
    • pp.151-158
    • /
    • 2010
  • Objective : SLAP is rupture of biceps brachii muscle tendon and it's origin, posterior side of superior labral to anterior glenoid fossa. Snapping and Pain, instability are its typical symptoms. SLAP is physical damage so surgeons use arthroscopy. In point of surgeons view, a conservative medicine is not effective for lesion of labrum. So In this article, we report a result of conservative treatment for the amatuer baseball player diagnosis with type 2 superior labral anterior posterior lesion. Methods : In this case, patient played amatuer baseball for 2 years, had diagnosis with type 2 Superior labral anterior posterior lesion by MRI after right shoulder Injury. OS recommened arthroscopy surgery. But he receive conservative Korean medicin treatment in Korean medicine hospital, including Atx, BV, herbal acupunture and rehabilitation excersise. Results : After 6 months, in the end of continuous conservative treatment and rehabilitation excersise, patient can play baseball normally, and felt a little pain. But In physical examination, he still has a some abnormal signs. Conclusion : A Conservative treatment for an amatuer baseball player diagnosis with SLAP type 2 was effective in restore of fuctional activities, but usefulness of this treatment needs more study.

  • PDF

Arthroscopic Treatment of a Type II Superior Labrum Anterior to Posterior (SLAP) Lesion Combined with a Bankart Lesion: Comparative Study between Debridement and Repair of Type II SLAP Lesion by the Status of Lesion

  • Lee, Sung Hyun;Joo, Min Su;Lim, Kyeong Hoon;Kim, Jeong Woo
    • Clinics in Shoulder and Elbow
    • /
    • v.21 no.1
    • /
    • pp.37-41
    • /
    • 2018
  • Background: The purpose of this study is to evaluate results of superior labrum anterior to posterior (SLAP) repairs and debridement of type II SLAP lesions combined with Bankart lesions. Methods: Between 2010 and 2014, total 58 patients with anterior shoulder instability due to a Bankart lesion combined with a type II SLAP lesion were enrolled. Patients were divided into two groups: group C consisted of 30 patients, each with a communicated Bankart and type II SLAP lesion and group NC consisted of 28 patients, each with a non-communicated Bankart and type II SLAP lesion. Bankart repairs were performed for all patients. SLAP lesions were repaired in group C and debrided in group NC. Clinical results were analysed to compare groups C and NC by using the visual analogue scale pain score, American Shoulder and Elbow Surgeons score, Constant scores, Rowe score for instability and range of motion assessments. Results: The clinical scores were improved in both groups at final follow-up. Also, there were no differences between two groups. No significant difference was found in terms of the range of motion measured at the last follow-up. The number of suture anchors used was significantly higher in group C than in group NC (5.6 vs. 3.8; p=0.021). Conclusions: In this study, it is considered that Bankart repair and SLAP debridement could be a treatment option in patients with a non-communicated type II SLAP lesion combined with a Bankart lesion (study design: IV, therapeutic study, case series).

Comparison of Physicochemical Properties of Several Korean Potato Starches (품종별 한국산 감자의 전분 특성 비교(I))

  • 김경애;김선민;정난희
    • Korean journal of food and cookery science
    • /
    • v.5 no.1
    • /
    • pp.53-62
    • /
    • 1989
  • Granular shapes and size, physicochemical properties and gelatinization properties of potato starches from Irish cobber (the dry type), Dejima (the moist type), Shepody and Superior were investigated. The starch granule was round or oval and the size of Irish cobbler and Shepody starch were $11~30\mu\textrm{m}$ and those of Superior and Dejima were$ 21~40\mu\textrm{m}$. Blue value, amylose content, relative crystallinity and density of Irish cobbler were the highest, but that of Dejima were the lowest. Water binding capacity, swelling power, transmittance. peak viscosity and breakdown of amylogram of Superior starch were the highest, but that of Irish cobbler starch were the lowest. Gelatinization temperature of DSC of Irish cobbler starch was the highest, but that of Superior starch was the lowest.

  • PDF

A Study on Variation Types in Celiac Axis and Superior Mesenteric Artery using 3D Volume Rendering of MDCT (MDCT의 3차원 볼륨렌더링을 이용한 복강축과 위창자간막동맥의 변위 형태에 관한연구)

  • Lee, Jeong-Keun;Jang, Young-Ill;Jang, Seong-Joo
    • Journal of radiological science and technology
    • /
    • v.36 no.2
    • /
    • pp.131-139
    • /
    • 2013
  • The aim of this study was to evaluate the variation which based on Celiac axis and SMA using by CT volume rendering images. 613 patients underwent abdominal CTA, there were 552 patients (99.05%, TypeI, II) with normal anatomical form and 61 (9.95%, Type III~XII) with variation. TypeI was 339(55.31%), Type II was 213 (34.74%), Type III was 18 (2.93%), Type IV was 12 patients (1.95%), Type V was 11 patient (1.79%), Type VI was 9 patients (1.46%), Type VII was 6 patients (0.97%), Type VIII was 1 patient (0.16%), Type IX was 1 patient (0.16%), Type X was 1 patient (0.16%), Type XI was 1 patient (0.16%), and Type XII was 1 patient (0.16%) into totally new types of variation. In conclusion, we could found 9 new types of variation by classifying based on celiac axis and superior mesenteric artery. These results were considered to be an important opportunity for a new vessel map.

A study on the Image Perception of Golf Wear Brand - Focusing on the Daks and Superior Golf wear - (골프웨어브랜드의 이미지 지각 분석 - 닥스와 수페리어 골프웨어를 중심으로 -)

  • Koo, In-Sook
    • Journal of Fashion Business
    • /
    • v.13 no.1
    • /
    • pp.1-16
    • /
    • 2009
  • The purpose of this study was to evaluate the clothing image of the Daks and Superior golf wear, and to compare the perceiver's image perception with clothing image in fashion industry, and to find out the differences of image perception between the buying groups and non-buying groups of the Daks and Superior golf wear, for developing the possibility and strategy of the golf wear market for the apparel marketers and manufacturers. In this study, the data obtained from 193 respondents were analyzed by the descriptive statistics, average analysis. The results from the data were as follows : The questionnaire of the image evaluation rated on 7 point Likert-type scales in the 17 features were evaluated by perceivers. The clothing images by 103 respondents(Daks group) were not in accord with the clothing images expressed on homepage of the Daks golf wear. In the other hands, the clothing images by the 90 respondents(Superior group) were in accord with the clothing images expressed on homepage of the golf wear. There were significant differences in evaluating the clothing images between the buying groups and non-buying groups of the Daks and Superior golf wear. The buying groups of the Daks and Superior golf wear perceived the clothing image of the Daks and Superior golf wear more dynamic, positive than the non-buying groups.