• Title/Summary/Keyword: All-on-4

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Effect of Sodium Chloride on Biology of Catenaria anguillulae

  • Gupta, R.C.;Singh, K.P.
    • Mycobiology
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    • v.30 no.4
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    • pp.219-224
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    • 2002
  • Growth studies of Catenaria anguillulae isolates in response to sodium chloride indicated that all the isolates grew in linseed oil-cake agar medium containing sodium chloride up to 1.0%. Medium with 1.5% sodium chloride, however, completely checked the growth of all the isolates. The size of zoosporangia greatly increased with abundant zoospore production in medium containing sodium chloride at 0.5%.

PRIMITIVE/SEIFERT KNOTS WHICH ARE NOT TWISTED TORUS KNOT POSITION

  • Kang, Sungmo
    • Honam Mathematical Journal
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    • v.35 no.4
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    • pp.775-791
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    • 2013
  • The twisted torus knots and the primitive/Seifert knots both lie on a genus 2 Heegaard surface of $S^3$. In [5], J. Dean used the twisted torus knots to provide an abundance of examples of primitive/Seifert knots. Also he showed that not all twisted torus knots are primitive/Seifert knots. In this paper, we study the other inclusion. In other words, it shows that not all primitive/Seifert knots are twisted torus knot position. In fact, we give infinitely many primitive/Seifert knots that are not twisted torus knot position.

Identification of Some Phellinus spp.

  • Shin, Kwang-Soo
    • Mycobiology
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    • v.29 no.4
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    • pp.190-193
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    • 2001
  • Four strains of Phellinus spp. was identified based on internal transcribed spacer(ITS) region of rDNA sequence analysis and morphological characteristics. Basidiocarps of all strains were effused-reflexed and hymenial surface was poroid. Hyphal system was dimitic and basidiospore was globose to ellipsoid. The amplification of ITS regions produced a DNA fragment of 500 to 780 by in all strains examined. The determined sequences were analyzed for the reconstruction of phylogenetic tree. From these results, Phellinus sp. KM-1, KM-2, and KM-4 was identified as P. hartigii, P. baumii, and P. linteus, respectively.

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Loop Selective Direction Measurement for Distance Protection

  • Steynberg, Gustav;Koch, Geyhard
    • Journal of Electrical Engineering and Technology
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    • v.1 no.4
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    • pp.423-426
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    • 2006
  • Distance relays achieve selective tripping by measurement of all short circuit fault conditions inside set reaches. The direction of the fault, forward or reverse is commonly determined with a dedicated measurement to ensure selectivity under all conditions. For the direction decision (measurement) a number of alternatives are available. This paper describes a loop selective direction measurement and illustrates by means of a typical fault why this is superior to a non loop selective direction measurement such as that based on negative sequence quantities.

Clinical Experience of Mediastinal Teratomas: Report of Four Cases (종격동 기형종 치험 4례)

  • 김공수
    • Journal of Chest Surgery
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    • v.5 no.2
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    • pp.147-152
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    • 1972
  • This is a report on the 4 cases of benign mediastinal teratoid tumor in the Department of Thoracic Surgery Chonnam University Hospital during the period from August, 1961 to August ,1972. All the tumors were teratomas which had three germinal layers and located in the anterior mediastinum. All the cases had symptoms such as Pancoast syndrome. exertional dyspnea, middle lobe syndrome with fistulous Connection to the cyst and retrosternal discomfort. X-ray studies are essential to recognize the tumor and its location. It`s believed that a exploratory thoracotomy is recommended because of the complications of the tumors and a possibility of malignancy.

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Effect of Auditory Stimulus using White Nosie on Dynamic Balance in Patients with Chronic Stroke during Walking

  • Lim, Hee Sung;Ryu, Jiseon;Ryu, Sihyun
    • Korean Journal of Applied Biomechanics
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    • v.30 no.4
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    • pp.301-309
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    • 2020
  • Objective: This study aimed to investigate the effect of white noise on dynamic balance in patients with stroke during walking. Method: Nineteen patients with chronic stroke (age: 61.2±9.8 years, height: 164.4±7.4 cm, weight: 61.1±9.4 kg, paretic side (R/L): 11/8, duration: 11.6±4.9 years) were included as study participants. Auditory stimulus used white noise, and all participants listened for 40 minutes mixing six types of natural sounds with random sounds. The dynamic balancing ability was evaluated while all participants walked before and after listening to white noise. The variables were the center of pressure (CoP), the center of mass (CoM), CoP-CoM inclined angle. Results: There is a significant increase in the antero-posterior (A-P) CoP range, A-P inclination angle, and gait speed on the paretic and non-paretic sides following white noise intervention (p<.05). Conclusion: Our findings confirmed the positive effect of using white noise as auditory stimulus through a more objective and quantitative assessment using CoP-CoM inclination angle as an evaluation indicator for assessing dynamic balance in patients with chronic stroke. The A-P and M-L inclination angle can be employed as a useful indicator for evaluating other exercise programs and intervention methods for functional enhancement of patients with chronic stroke in terms of their effects on dynamic balance and effectiveness.

A Study on the Effects of All-in-one Automatic Fire Shutters Installed in High School on Evacuation Time

  • Lee, Soon Beom;Kong, Ha Sung;Lee, Jai Young
    • International Journal of Internet, Broadcasting and Communication
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    • v.14 no.3
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    • pp.182-192
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    • 2022
  • This study analyzed the effects of the all-in-one automatic fire shutter (hereinafter referred to as "all-in-one shutter") installed along the fire compartment in a five-story high school building on the evacuation time by using the Pathfinder simulation program. When the all-in-one shutter was added as a new variable, the evacuation time was delayed, indicating insufficient evacuation safety. The evacuation time exceeded the appropriate standard when the evacuation exit was designated to the students in the present state of being placed on the 2nd, 3rd, and 4th floors and the all-in-one shutter was activated. When students were placed on the 1st, 2nd and 3rd floors under the same conditions, the evacuation time was also greatly exceeded. However, when the width of the entrance was set to 130cm, the evacuation time was almost the same as when the all-in-one shutter was not installed. In high-rise school buildings, the bottleneck caused by all-in-one shutters is becoming a major factor in evacuation barriers. To ensure the evacuation safety of school buildings, it has been judged that evacuation education and training to predict the evacuation time required through the all-in-one shutter entrance and induce an evacuation procedure suitable for the standard evacuation time should be carried out in parallel. The implications of this study and suggestions for effective fire compartments and follow-up studies were discussed.

Varistor Properties and Aging Behavior of ZnO-V2O5-MnO2-Co3O4-La2O3 Ceramics Modified with Various Additives (Cr, Nb, Dy, Bi)

  • Nahm, Choon-Woo;Lee, Sun-Kwon;Heo, Jae-Seok;Lee, Don-Gyu;Park, Jong-Hyuk;Cho, Han-Goo
    • Transactions on Electrical and Electronic Materials
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    • v.14 no.4
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    • pp.193-198
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    • 2013
  • The effects of additives (Cr, Nb, Dy, and Bi) on microstructure, electrical properties, dielectric characteristics, and aging behavior of $ZnO-V_2O_5-MnO_2-Co_3O_4-La_2O_3$ (ZVMCL) ceramics were systematically investigated. The phase formed in common for all ZVMCL ceramics modified with various additives consisted of ZnO grain as a main phase, and $Zn_3(VO_4)_2$ and $ZnV_2O_4$ as the secondary phases. The sintered density and average grain size were in the range of $5.4-5.54g/cm^3$ and $3.7-5.1{\mu}m$, respectively. The ZVMCL ceramics modified with Cr exhibited the highest breakdown field (6,386 V/cm) and the ZVMCL ceramics modified with Nb exhibited the lowest breakdown field (3,517 V/cm). All additives enhanced the nonlinear coefficient (${\alpha}$), by a small or large margin, in particular, additives such as Bi and Nb noticeably increased the nonlinear coefficient, with ${\alpha}=25.5$ and ${\alpha}=23$, respectively. However, on the whole, all additives did not improve the stability against a DC stress, compared with ZVMCL ceramics.

Radiography and Computed Tomography in Four Dogs with Lung Lobe Torsion (흉부 방사선 촬영과 컴퓨터단층촬영을 이용한 폐염전의 진단 4례)

  • Lee, Ki-Ja;Choi, Sung-Jin;Kim, Young-Hwan;Jeong, In-Seong;Choi, Ho-Jung;Lee, Young-Won
    • Journal of Veterinary Clinics
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    • v.30 no.5
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    • pp.390-393
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    • 2013
  • This case study describes the imaging features of radiography and computed tomography (CT) in four small breed dogs with lung lobe torsion. The medical records, thoracic radiographs and CT images of four dogs with confirmed lung lobe torsion were retrospectively reviewed. Pleural effusion and increased lobar opacity/density were seen on all CT and thoracic radiography in all four dogs. CT revealed narrowed/collapsed bronchus in all four dogs, while this was only appreciated on one thoracic radiography. The vesicular emphysema pattern was seen on four CT but only on three radiographic examinations. The specific findings of lung lobe torsion were vesicular emphysema and a narrowed/collapsed bronchus. These findings were more easily recognized on CT than with thoracic radiographs.

All Flash Array Storage Virtualisation using SCST (SCST를 이용한 All Flash Array 스토리지 가상화)

  • Heo, Huiseong;Pirahandeh, Mehdi;Lee, Kwangsoo;Kim, Deokhwan
    • KIISE Transactions on Computing Practices
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    • v.20 no.10
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    • pp.525-533
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    • 2014
  • SCST(The generic SCSI target subsystem for Linux) enables developers to make SCSI target storage and supports various SCSI network protocol such as iSCSI, FC, SRP. In this paper, we propose storage virtualization method using SCST and virtualize all flash array as high performance storage through 4Gb Fiber Channel, 10Gb Ethernet and 40Gb Infiniband and evaluate their performance, respectively. Experimental result shows that 40Gb infiniband network appliance have better performance than others. In case of sequential/random read, 40Gb infiniband network appliance shows 78% and 79% of local all flash array performance attached to SCSI target system. In case of sequential/random write, it shows 83% and 88% of local flash array performance attached to SCSI target system.