• Title, Summary, Keyword: Locator

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A Topology based algorithm for Jini Service Locator in Ad hoc networking Environment (Ad hoc 환경에서 네트워크 토폴로지에 기반한 Jini Service Locator 선출 알고리즘)

  • 안성우;고영배;김재훈
    • Proceedings of the Korean Information Science Society Conference
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    • pp.793-795
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    • 2004
  • Jini 네트워크를 Ad hoc 환경에 적용시킬 때 Ad hoc 환경의 특성으로 인해 여러 가지 문제점이 생긴다. 그중 하나가 Service Locator가 이동하거나 전력소비로 인하여 사라지는 문제점이다. Jini 네트워크에서 Service Locator가 없으면 Jini가 제공하는 서비스를 할 수 없게 되기 때문에 Service Locator에 문제가 발생했을 때는 새로운 Service Locator를 선출해야 한다. 본 논문에서는 Service Locator를 Ad hoc 네트워크의 중심부에 위치하게 하여 네트워크 내의 모든 노드들에게 공평한 서비스를 받게 하는 기법을 제시한다.

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Clinical evaluation of mandibular implant overdentures via Locator implant attachment and Locator bar attachment

  • Seo, Yong-Ho;Bae, Eun-Bin;Kim, Jung-Woo;Lee, So-Hyoun;Yun, Mi-Jung;Jeong, Chang-Mo;Jeon, Young-Chan;Huh, Jung-Bo
    • The Journal of Advanced Prosthodontics
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    • v.8 no.4
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    • pp.313-320
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    • 2016
  • PURPOSE. The aim of this study was to evaluate the clinical findings and patient satisfaction on implant overdenture designed with Locator implant attachment or Locator bar attachment in mandibular edentulous patients. MATERIALS AND METHODS. Implant survival rate, marginal bone loss, probing depth, peri-implant inflammation, bleeding, plaque, calculus, complications, and satisfaction were evaluated on sixteen patients who were treated with mandibular overdenture and have used it for at least 1 year (Locator implant attachment: n=8, Locator bar attachment: n=8). RESULTS. Marginal bone loss, probing depth, plaque index of the Locator bar attachment group were significantly lower than the Locator implant attachment group (P<.05). There was no significant difference on bleeding, peri-implant inflammation, and patient satisfaction between the two denture types (P>.05). The replacement of the attachment components was the most common complication in both groups. Although there was no correlation between marginal bone loss and plaque index, a significant correlation was found between marginal bone loss and probing depth. CONCLUSION. The Locator bar attachment group indicates lesser marginal bone loss and need for maintenance, as compared with the Locator implant attachment group. This may be due to the splinting effect among implants rather than the types of Locator attachment.

A Literature Review on Locator Attachment for Implant Overdenture (임플란트 피개의치를 위한 Locator 어태치먼트: 문헌 고찰)

  • Cha, Min-Sang;Kim, Dae-Gon;Park, Chan-Jin;Cho, Lee-Ra
    • Journal of Dental Rehabilitation and Applied Science
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    • v.29 no.2
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    • pp.127-140
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    • 2013
  • The Locator attachment is used widely for implant retained overdenture. It can be used solitary and needs small vertical space. Locator can be applicable for parallel implants and divergent implants. Nylon male cap allow personalized retention for each case. In this literature review, initial retention force and changes in retention force of various attachments were evaluated. Rotation freedom and stress distribution around the attachment were reviewed. Moreover, patient satisfaction and maintenance care of Locator attachment were described. From all of the researches, it was drawn that Locator attachment can be used successfully and widely in several clinical situations.

Personalization Using Member Properties in the Physical Locator (실 위치지정자 자격으로서의 멤버 특성을 활용한 개인화 작업)

  • Lee Deok-Keun;Yu Han-Ju;Ch In-Soo
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.3
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    • pp.101-110
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    • 2005
  • A virtual locator is a logical locator based on the contents of a physical locator. These contents can be existing member properties in the physical locator. Using virtual locator, we can accomplish personalization which is the technology area associated most often with CRM. In this study, however, what are called virtual locators in many OLAP models would be treated as physical locators for many unique aggregation levels. By using physical locators, we can bring a successful e-business.

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A Study on Digital Fault Locator for Transmission Line (송전선로용 디지털 고장점 표정장치에 관한 연구)

  • Lee, Kyung-Min;Park, Chul-Won
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.4
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    • pp.291-296
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    • 2015
  • Transmission line is exposed to a large area, and then faults are likely to occur than the other component of power system. When a fault occurs on a transmission line, fault locator helps fast recovery of power supply on power system. This paper deals with the design of a digital fault locator for improvement accuracy of the fault distance estimation and a fault occurrence position for transmission line. The algorithm of a fault locator uses a DC offset removal filter and DFT filter. The algorithm utilizes a fault data of GPS time synchronized. The computed fault information is transmitted to the other side substation through communication. The digital fault locator includes MPU module, ADPU module, SIU module, and a power module. The MMI firmware and software of the fault locator was implemented.

EVALUATION OF THE ACCURACY OF THE ELECTRONIC APEX LOCATOR USING THE POLARIZING MICROSCOPE (편광현미경을 이용한 전자적근관장측정기의 정확성에 관한 연구)

  • Park, Han-Soo;Yoon, Soo-Han
    • Restorative Dentistry and Endodontics
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    • v.17 no.1
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    • pp.235-243
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    • 1992
  • The purpose of this study was to evaluate the accuracy of an electronic apex locator, the Neosono - M, in determining the location of the cementodentinal junction. A total of 26 teeth with 46 canals were evaluated. The apex locator was used to locate the file and the teeth extracted. The specimen were prepared with highspeed burs and sandpaper discs to a thickness of $250{\sim}300{\mu}m$. Distances were measured from the cementodentinal junction with the use of polarizing microscope. Measurements made by the apex locator were also compared with those by the X - ray. The results were as follows. 1. The apex locator and X - ray were to measure a mean value of 0.17, 0.45mm coronal to the CDJ respectively. There was no significant difference between the accuracy of the apex locator and that of X - ray. 2. There was no significant difference between the accuracy of apex locator in vital and in nonvital teeth, and between in narrow and in wide canals. 3. The files in nonvital and narrow group were apical to the CDJ significantly than those of vital and narrow, vital and wide, and non vital and wide groups.

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Comparative study of prosthetic complications associated with the bar-clip, milled bar, and Locator attachments for implant overdentures: a retrospective study

  • Yoon, Kye-Won;Heo, Ji-Ye;Hwang, Hee-Sung;Kim, Chul-Hoon;Kim, Bok-Joo;Kim, Jung-Han
    • The journal of the Korean dental association
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    • v.54 no.12
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    • pp.1024-1034
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    • 2016
  • Purpose. The purpose of this study was to compare the type and frequency of prosthetic complications associated with attachment types for implant overdenture. Material and methods. In this retrospective study, 38 patients (mean age, 63.5 years) have been treated with implant overdentures from 2007 to 2014. Ten patients received a bar-clip attachment. Eleven patients had received a milled bar with Locator attachment. Seventeen patients had received a Locator attachment. The mean follow-up period was 36.9 months (range, 15-83 months). The type and frequency of prosthetic complications was recorded. The frequency was analyzed to determine the statistical difference among the 3 different attachments by using one-way ANOVA (${\alpha}=.05$) and Bonferroni post hoc method at a 5% level of significance. Results. The total number of prosthetic complications was higher in the bar-clip attachment (55 events) than in the milled bar with Locator attachment (39 events) and the Locator attachment (34 events). There were no statistically significant differences, and the most common prosthetic complication was the loss of retention. In the bar-clip attachment group, the average frequency of prosthetic complications was 3.0 events per prosthesis during the first year. In the milled bar with Locator attachment and Locator attachment groups, the average frequencies were 1.45 events and 2.35 events, respectively. Statistically significant differences were observed in the frequency of the complication. (p = .043) Conclusions. Compared to the bar-clip attachment, implant overdentures that use milled bars with the Locator attachment have a significantly lower incidence of prosthetic complications in the first year of follow-up after placement.

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Analysis of the operation of Fault Locator in aspect of Line Constants by unifying Protect Wires (보호선 통합에 따른 선로정수 측면의 고장점 표정장치 동작에 관한 해석)

  • Lee, H.M.;Chang, S.H.;Han, M.S.
    • Proceedings of the KIEE Conference
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    • pp.275-277
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    • 2004
  • when a fault occurs, we need the fault locator to find out the location of the fault quickly. The fault locator can find out the exact location of the fault through the line constants of the catenary system. If the configuration of the catenary system is modified, the line constants is also changed. Therefore, this paper analyzes the error of the operation of the fault locator by the simulation.

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Implant Supported Overdenture using Milled Titanium Bar with $Locator^{(R)}$ Attachment on Fully Edentulous Maxillae : A Case Report (상악 완전 무치악에서 $Locator^{(R)}$ attachment가 장착된 milled titanium bar를 이용한 임플란트 지지 피개의치: 증례 보고)

  • Oh, Sang-Chun;Han, Ji-Suk;Kim, Min-Jeong
    • Journal of Dental Rehabilitation and Applied Science
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    • v.27 no.2
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    • pp.223-231
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    • 2011
  • The purpose of this case report is to introduce new attachment system(milled titanium bar with $Locator^{(R)}$ attachment) for implant supported overdenture in maxillary edentulous patients. A 56-years-old male patient visited the hospital due to the mobility of his maxillary fixed partial dentures(10-unit bridge). Including temporomandibular joint(TMJ), there was no specific PMHs to influence dental treatment. In radiographic and clinical evaluation, there was a severe bone resorption and mobility in maxillary teeth. Accordingly all the remaining maxillary teeth was extracted and fabrication of implant supported overdenture was planned. The milled titanium bar with $Locator^{(R)}$ was designed as an attachment system, considering the stability and retention of denture, masticatory efficiency, oral hygiene care, esthetics, pronunciation, and patient's financial state. The milled titanium bar was manufactured using CAD/CAM technology, and $Locator^{(R)}$ attachment connected to the bar by tap & drill method. For over 1-year, in terms of function and esthetics, satisfactory result was obtained.

Maxillary removable partial overdenture within Locator Root Attachment in a retained root: a case report (소수 잔존 치근에 Locator Root Attachment를 활용한 상악 가철성 국소의치 증례)

  • Shin, Jin-Ho
    • Journal of Dental Rehabilitation and Applied Science
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    • v.33 no.3
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    • pp.199-206
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    • 2017
  • If maintaining oral few retained root when planning the removable prosthesis, it is possible to obtain a more comfortable and functional result. In this case report, 'Locator Root Attachment' was used to maxillary removable overdenture in patients with a few teeth and retained root. A functionally proper clinical result from attachment after clinical and radiographic analysis was observed in this case.