http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A Web-Based Revision Control Framework for 3D CAD Model Data
Purevdorj Nyamsuren,이수홍,김성민 한국정밀공학회 2013 International Journal of Precision Engineering and Vol. No.
A calibration of web-based calculating and representing differences between 3D CAD models is an important and challenging task in distributed, collaborative and integrated design areas. Many CAD application developers have improved user interfaces and connectivity supports that enable the incorporation of online information and web applications in a convenient manner. The representing difference involves numbers of steps such as uploading 3D model data file to the STL converting server, calculating their differences and visualizing them on the webpage. This paper describes steps in involved web based revision control system supporting most of CAD native formats. The C#, JavaScript programming language, PHP technique, and MySQL database system have been used to develop the framework and some special technique such as Constructive Solid Geometry (CSG) and WebGL technology have been used in the system. We conclude with a discussion of some of the issues raised by the project and the steps underway to address them.
Rotation Effect of In-plane FM layer on IrMn Based GMR-SV Film
Purevdorj Khajidmaa,Jong-Gu Choi,Sang-Suk Lee 한국자기학회 2017 Journal of Magnetics Vol.22 No.1
The magnetoresistance (MR) properties of antiferromagnetic (AFM) IrMn based giant magnetoresistance-spin valve (GMR-SV) was investigated in view point of the artificial rotation effect of ferromagnetic (FM) layer in the plane induced by an applied field during the post annealing temperature. The MR curves measured with an azimuthal angle region of φ = 0°-360° are depended on the annealing temperature and the magnetization easy axis of two free NiFe layers and two pinned NiFe layers in dual-type GMR-SV film. Especially, the annealing temperature and sample rotation angle(θ ) maintained to the magnetic sensitivity (MS) of 1.4 %/Oe with an isotropic region angle of 110° are 100 °C and 90°, respectively.
Bayasgalan Purevdorj,Uranchimeg Dugarsuren,Bulgan Tuvaan,Baasankhuu Jamiyanjav 대한해부학회 2021 Anatomy & Cell Biology Vol.54 No.4
To study the affect of anatomical variance of lacrimal sac fossa on dacryocystorhinostomies (DCR) performed by the traditional external (EX-DCR) approach or an endoscopic (EN-DCR) endonasal approach. A total of 292 consecutive cases with primary nasolacrimal obstruction underwent DCR surgery. Orbital computed tomography scan was used to measure lacrimal sac fossa and other related structures and Lac-Q questionnaire was used to compare surgery result. Maxillary portion of lacrimal sac fossa is thicker in failed surgery group than successful surgery group (P<0.05). Lateral nasal structures (uncinate process, operculum of the middle turbinate, agger nasi) are dominantly adjusting to lacrimal sac fossa in failed surgery group (P<0.05). Patients who underwent EX-DCR has a 6.0-point and EN-DCR group 11.0-point improvement (P<0.016) in Lac-Q questionnaire. Patients who have a thick frontal process of the maxilla and uncinate process, operculum of the middle turbinate, ethmoid cells adjusting to lacrimal fossa are prone to have recurrence of nasolacrimal duct obstruction after DCR surgery. The EN-DCR and the EX-DCR approach have an equivalent surgical success rate but improvement in quality of life by using the Lac-Q questionnaire is greater in the endoscopic group when compared with the external.
Nyamsuren, Purevdorj,Lee, Soo-Hong,Hwang, Hyun-Tae,Kim, Tae-Joo Society for Computational Design and Engineering 2015 Journal of computational design and engineering Vol.2 No.3
Increased competitive challenges are forcing companies to find better ways to bring their applications to market faster. Distributed development environments can help companies improve their time-to-market by enabling parallel activities. Although, such environments still have their limitations in real-time communication and real-time collaboration during the product development process. This paper describes a web-based collaborative framework which has been developed to support the decision making on a 3D design developing process. The paper describes 3D design file for the discussion that contains all relevant annotations on its surface and their visualization on the user interface for design changing. The framework includes a native CAD data converting module, 3D data based real-time communication module, revision control module for 3D data and some sub-modules such as data storage and data management. We also discuss some raised issues in the project and the steps underway to address them.
이중구조 거대자기저항-스핀밸브 박막의 자기등방성 영역분포에 관한 연구
카지드마(Purevdorj Khajidmaa),이상석(Sang-Suk Lee) 한국자기학회 2013 韓國磁氣學會誌 Vol.23 No.6
The regional distribution of magnetic isotropy depending on the post annealing condition for the dual-type structure GMR-SV (giant magnetoresistance-spin valve) of NiFe/Cu/NiFe/IrMn/NiFe/Cu/NiFe multilayer was investigated. The rotation of in-plane ferromagnetic layer induced by controlment of the post annealing temperature inside of the vacuum chamber. The magnetoresistive curves of a dual-type IrMn based GMR-SV depending on the direction of the magnetization easy axis of the free layer and the pinned layer are measured by between 0˚ and 360˚ angles for the applied fields. The optimum annealing temperature having a steady and isotropy magnetic sensitivity of 1.52 %/Oe was 107℃ in the rotational section of 0~90˚. By investigating the switching process of magnetization for an arbitrary measuring direction, the in-plane orthogonal magnetization for the dual-type GMR-SV multilayer can be used by a high sensitive biosensor for detection of magnetized micro-beads.
The avifaunal survey at Important Bird Areas in western Mongolia
Zoljargal Purevdorj,백운기,Munkhbaatar Munkhbayar,Onolragchaa Ganbold,빙기창,Ariunbold Jargalsaikhan,Erdenetushig Purevee,백인환,최원석,Namsrai Jargal,이준우 한국조류학회II 2019 한국조류학회지 Vol.26 No.1
In 2018, the avifaunal surveys at western Mongolian Important Bird Areas (IBAs) were conducted at 23 sites in three times surveys in May, July, and September. Western Mongolian landscape is characterized by diverse natural zones that dominated by a high mountain range and, wetlands or lakes. Therefore, fresh water high mountain lakes and mountain based IBA sites are common in this region. A total of 131,607 individuals of 201 species that belong to 41 families and 17 orders were recorded in this study. Among these order, Passeriformes was accounted for a higher number of species with 78 species, followed by Charadriiformes with 42 species and Falconiformes, Anseriformes with 26 species, respectively. In addition, the majority of counted birds were (42,121) belong to Anseriformes, while Falconiformes was accounted for the fewest number of counted birds (978). Furthermore, a total of 12 Globally Threatened Birds (GTBs) were recorded including, two Endangered and 10 Vulnerable. According to our findings from this investigation, the high abundance of livestock and tourism activities at wetlands that considered as the most valuable avifaunal hotspot in western Mongolia. In addition, findings also revealed that there is still a need monitoring on actual negative impact from these threats to the bird communities at these hotspots.
Room temperature optical anisotropy of a LaMnO3 thin-film induced by ultra-short pulse laser
Munkhbaatar, Purevdorj,Marton, Zsolt,Tsermaa, Baatarchuluun,Choi, Woo Seok,Seo, Sung S. Ambrose,Kim, Jin Seung,Nakagawa, Naoyuki,Hwang, Harold Y.,Lee, Ho Nyung,Myung-Whun, Kim American Institute of Physics 2015 APPLIED PHYSICS LETTERS Vol.106 No.9
NiFe/Cu/NiFe 박막과 YBa₂Cu₃O<SUB>7−x </SUB>박막 사이 NiO 층의 두께에 따른 전류전달효과에 의한 음의 자기저항비 특성 연구
카지드마(Purevdorj Khajidmaa),강병욱(Byeong-Uk Kang),최종구(Jong-Gu Choi),이상석(Sang-Suk Lee),양우일(Woo-Il Yang) 한국자기학회 2019 韓國磁氣學會誌 Vol.29 No.2
The magnetoresistance (MR) curves of giant magnetoresistive-spin valve (GMR-SV) multilayer on Corning glass and sapphire/high-temperature superconductor (HTS) YBa₂Cu₃O<SUB>7−x</SUB> (YBCO) film fabricated by magnetron sputtering were compared and analyzed. Hybrid type HTS and GMR-SV multilayer film with antiferromagnetic NiO thickness of 10 nm has a negative MR ratio of−7.7 %, an exchange coupling field (H<SUB>ex</SUB>) of 120 Oe, a coercive force (H<SUB>c</SUB>) of 125 Oe, respectively. However, there is exist a positive MR ratio of +7.3 % in case of NiO thickness of 60 nm. The glass/NiO/NiFe/Cu/NiFe/Ta multilayer showed linear current-voltage (IV) curve, but the Al₂O₃/YBCO/NiO(10 nm, 60 nm)/NiFe/Cu/NiFe/Ta multilayer showed a nonlinear I-V curve in which the resistance value of 1.15 Ω and 59.4 Ω decreased to 1.02 Ω and 50.2 Ω when the current of 15.7 mA increased to 1.67 mA, respectively. This results are explained by the current transfer effect in the 4-probe electrode measurement method occurred when the resistance of the YBCO film is 0.