Mo, Jun Sang · Seong, Seon Kyeong · Choi, Jae Wan
Recently, as the spatial resolution of satellite and aerial images has improved, various studies using remotely sensed data with high spatial resolution have been conducted. In particular, since the building extraction is essential for creating digital thematic maps, high accuracy of building extraction result is required. In this manuscript, building extraction models were generated using SegNet, U-Net, FC-DenseNet, and HRNetV2, which are representative semantic segmentation models in deep learning techniques, and then the evaluationof building extraction results was performed. Training dataset for building extraction were generated by using aerial orthophotos including various buildings, and evaluation was conducted in three areas. First, the model performance was evaluated through the region adjacent to the training dataset. In addition, the applicability of the model was evaluated through the region different from the training dataset. As a result, the f1-score of HRNetV2 represented the best values in terms of model performance and applicability. Through this study, the possibility of creating and modifying the building layer in the digital map was confirmed.
With regard to the assessor evaluations, only scar trans- gression of the philtral ridge was judged to differ between the two techniques. This coincided with ‘the part of the scar that bothers me the most’ in the guardian/patient evaluation. This is in agreement with prior studies 7,23,34,35 that also reported a high percentage of scar transgression of the anatomical boundary with TR repair. In contrast, Holtmann and Wray 27 and Chowdri et al. 28 , while working on 35 and 108 randomly selected patients, respectively, concluded that there was no significant difference between the two techniques in terms of transgression of the residual scar. Both techniques have been reported to produce a scar that transgresses a known anatomical boundary. Millard’s technique transgresses the philtrum at the upper part due to the rotation incision, while TR transgresses it at the lower part due to the triangular flap that inserts in the medial element 22 .
infrabony defects, comparing measurements made using periapical radiographs and CBCT with control measure
ments obtained directly from dry skulls, reported that high
er precision and accuracy were obtained using CBCT. The greater precision of CBCT measurements can be attributed to the advantage of identifying defects present in both the buccal and lingual aspects of the teeth. Such defects cannot be fully identified by conventional radiography. 14,16,17 As a result, all artificially created defects were detected with CBCT, whereas only 67% of the defects were identified in periapical radiographs. 16 Studies have demonstrated that CBCT has the potential to be more accurate 17 than conven
Paper number: 17-038
Received: 20 April 2017; Revised: 12 July 2017 / 18 August 2017; Accepted: 18 August 2017
In this paper a method for estimating the ‘service life’ and ‘residual life’ of a water pipe based on the Water Pipe Network Performance Evaluation(WPNPE) results of Water Supply Technical Diagnosis was developed for efficient maintenance of water pipes. The residual life of a pipe was defined as the difference between the service life and elapsed time since installation. The service life was defined as the time when a pipe reaches the reference score for determining deteriorated pipes that was used in the WPNPE. The pipe evaluation criteria and deterioration scores used in the WPNPE for the case study area were considered as independent variables in the multiple regression model for estimating the service life and residual life of the pipes in the area. To estimate the service life for the pipes the reference scores for determining deteriorated pipes were used as the values of the variables that represent the deterioration scores in the constructed regression models. Subsequently, the statistics of the service life and residual life of the pipes in the case study area were presented and analyzed in comparison with the service life defined by the Local Public Enterprizes Act.
Sarcoidosis can involve multiple organs and is characterized by non-caseating granuloma on biopsy, which is not pathognomonic of this disease.
Therefore, diagnosis requires exclusion of other causes of granuloma, including malignant neoplasm, infections, autoimmune diseases, drug expo- sure, environmental causes, lymphoma, and tuberculosis. Herein, we present a rare case of a patient with a primary manifestation of sarcoidosis, with typical bilateral hilar adenopathy, and recurrence in the bone marrow. A 50-year-old female patient, who had been diagnosed with sarcoidosis at age 38, was admitted for petechia on both legs and pancytopenia. The patient was concluded to be “highly probable” for sarcoidosis, with at least 90% likelihood, according to the World Association of Sarcoidosis and Other Granulomatous Diseases (WASOG) organ assessment instru- ment. Moreover, the patient had a bone marrow biopsy positive for granulomatous inflammation. Hence, all findings supported the diagnosis of sarcoidosis. Because sarcoidosis is difficult to definitively diagnose, it will be useful to better understand the application, interpretation, and limita- tions of the WASOG instrument for bone marrow involvement assessment.
showed that the percentage of filling material removed with Mtwo instruments (96%) was significantly higher than Reciproc instruments (89%). This discrepancy in the results may be explained by differences in the methodologic design. While maxillary central incisors were analyzed based on photographs taken after splitting the teeth in the former study , a micro-CT tool was used to evaluate mesial canals of mandibular molars in the latter one . Mtwo and Reciproc systems were chosen because they are similar in design, therefore allowing a well-controlled comparison between a single-file reciprocating system and a multi-file rotary system. Although these systems are similar in design, it was not possible to standardize the tapers because Reciproc has a variable taper along the shaft. This feature combined with the reciprocating movement can partly explain the improved performance of Reciproc instruments in the removal of root fillings herein. Moreover, contrary to the previous studies where retreatments were always performed by only one operator with experience in all tested techniques, all retreatment procedures were performed by undergraduate students in the present study. None of them had any type of experience using the 3 retreatment techniques. Thus, the present results showed the reduced learning curve of Reciproc instruments due to its simple usability.
고안 및 결론
본 연구는 Alderson rando phantom을 사용하여 3F와 2F beam을 이용한 치료기법에 따른 특성 비교와 환자 측면의 시간적・경제적 유용성을 비교 평가하였다. 총 MU값은 3F beam을 사용한 모든 치료기법에서 증가하였다. 이는 3F beam의 연화 (softening)현상으로 평균 선질의 저하와 용 인 가능한 치료표적의 conformity를 형성하기 위하여 3F Table 1. The comparison of the number of total monitor units between flattening filter-free and flattening filter beam
The extraoral NAM technique is a promising approach that significantly reduces the complications and compliance issues associated with intraoral NAM. The concept of the extraoral approach was first described in 1993 by Larson et al. 38 , who developed an extraoral device for presurgical orthopedic procedures. It consisted of a T-shaped traction de- vice that was supported by a rubber band and headcap. That device applied transverse pressure along the base of the nasal septum toward the cleft side to rotate the larger cleft seg- ment 38 . However, that appliance was bulky and its fabrication was time consuming. In 2005, Doruk and Kiliç 37 developed an extraoral appliance that consisted of a nasal stent with a helical spring that extended from the forehead to the chin and was supported by a circumferential headband. An intraoral plate was inserted separately for alveolus molding. The limi- tation of that appliance was its complex design, which could obstruct feeding.
그림 14. 제작한 SoC 칩의 평가 보드 중 메인 보드
Fig. 15. Peripheral board for SoC evaluation 그림 15. 제작한 SoC 칩의 평가 보드 중 보조 보드
그림 15. 는 보조 보드이다. 보조 보드에는 LCD 를 부착할 수 있고, SD card 슬롯, USB PHY와 커넥터, UART 인터페이스, 이더넷 PHY, 트랜스 포머, 커넥터가 있고 전원회로가 있다. 전원회로 는 5 V입력을 받아서 메인 보드에서 필요로 하는 1.2 V, 3.3 V전원들을 만들어낸다. 그림 16. 은 보 조 보드에 메인 보드를 장착해서 메인 모듈을 구 성한 것이다. 이 보드를 이용해서 SoC의 동작을 테스트하고 검증하였다. 평가보드는 프로그램 개 발을 위해서 만들어진 것이기 때문에 디버거 포 트를 이용해서 PC와 연결하고 개발용 툴 체인과
Library construction techniquesfor pathogen whole genome sequencing
Yang Hyo-Jin, Choi Hyun-Jung, Chai Hee-Youl, Kang Yeon-Ho*
Division of Biosafety Evaluation and Control, KNIH, KCDC
In molecular biology, libraries are widely used for analyzing the sequences of gene or genome to discover a new gene and its function. Furthermore, libraries are essential in genomics for preparing genetic materials into a form compatible with the sequencing system to be used. For this reason, the library preparation method has evolved from that applied in first- generation sequencing techniques (Sanger sequencing) to more recent sequencing technology [second- generation sequencing i.e., next-generation sequencing (NGS) and third-generation sequencing]. Moreover, the methods are changed depending on the type of target genetic materials (e.g., DNA, RNA). In this report, we introduce general library preparation methods and specific library construction methods according to the type of pathogens being detected.
Monitoring for Anti-ABO antibody titer, CD19+
lymphocyte count and rejection
Basal levels of the pre-formed anti-ABO antibody titer and CD19+ lymphocyte count were checked before the administration of RTX and serially measured after the ini- tiation of plasmapheresis. Our center used the serial test tube dilution method for determination of the liver trans- plantation recipient’s isoagglutinintiter. After the ABOi LDLT, the anti-ABO antibody titer was checked on post- operative day 7, 14, 21, 28. To confirm the effect of RTX, we checked serum CD19+ lymphocyte count before LDLT and the count was rechecked at post-operative day 7.
input & output disturbance
Fig. 4 Step Response of the iPID
Fig.3과 Fig.4에서 PID와 iPID제어기에서 ,
, 및 시간 지연 는 20msec 을 사용하였다. Fig. 3의 PID제어시스템의 스텝응답은 과도응답이 매우 큰 것을 알 수 있으며 외란에 대해서 도 과도응답이 발생하였다. 그러나 iPID제어기는 스텝 입력에 대하여 과도응답이 매우 적은 것을 알 수 있다.
Total 100 100 (100%) 0 (0%) 4.7 1.2
There is no significant difference among groups (P ＞0.05).
2. 산란저하증, 마이코플라스마병
산란저하증과 마이코플라스마병은 강원도 동물위생 시험소 중부지소에서 산란저하증은 혈구응집 억제 반 응법(Hemagglutination Inhibition test, HI)으로, 마이코 플라스마병은 평판응집반응법 (Plate Agglutination test, PA) 으로 각각 검사하였다. 바이러스나 세균 중의 일 부 미생물은 특정 종류의 동물 적혈구와 혼합 시 적혈 구의 표면에 부착하여 적혈구를 응집시키는 기능을 가지고 있다. 산란저하증 바이러스와 마이코플라스마 는 이와 같은 성질을 가지고 있으므로, HI test를 적용 하고 있다. HI test는 바이러스나 세균과 같은 미생물 의 항원에 대한 혈청 내의 항체 유무, 항체 역가(anti- body titer) 가 얼마인지를 확인하는 검사법으로, 음성 일 경우 항체에 의한 미생물이 중화되어 적혈구가 바 닥에 가라앉게 되며, 양성일 경우 바이러스에 대응하 는 항체가 없어 적혈구가 응집되어 펴지게 된다. PA test 는 위에서 언급한 추백리, 가금티푸스의 검사방법 과 동일한 방법으로 실시하였다.
Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82-2-3010-3930, Fax: +82-2-3010-6701, E-mail: email@example.com
Copyright Ⓒ 2021 by The Korean Association of Hepato-Biliary-Pancreatic Surgery
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mandibular foramen. One wire passes from the mesio- buccal groove and the middle point of the slope of the distolingual cusp of the contralateral mandibular perma- nent first molar or primary second molar, and the other wire must follow the occlusal plane on the ipsilateral side so that the tip of the orthodontic wire coincides with the center of the mandibular foramen. Coincidence is parti- cularly effective in pediatric patients with 93% rate compared to 82% in adults. Although the standard deviation is extremely small even with errors and the actual success rate of anesthesia is presumed to be higher, further clinical studies are needed in the future .