• Smart Structures and Systems
• /
• v.24 no.5
• /
• pp.587-595
• /
• 2019

Deformation measurement of large scale structures, such as the ground beds of high-rise buildings, tunnels, bridge, and railways, are important for insuring service quality and safety. The pose-relay videometrics method and displacement-relay videometrics method have already presented to measure the pose of non-intervisible objects and vertical subsidence of unstable areas, respectively. Both methods combine the cameras and cooperative markers to form the camera series networks. Based on these two networks, we propose two novel videometrics methods with closed-loop camera series network for deformation measurement of large scale structures. The closed-loop camera series network offers "closed-loop constraints" for the camera series network: the deformation of the reference points observed by different measurement stations is identical. The closed-loop constraints improve the measurement accuracy using camera series network. Furthermore, multiple closed-loops and the flexible combination of camera series network are introduced to facilitate more complex deformation measurement tasks. Simulated results show that the closed-loop constraints can enhance the measurement accuracy of camera series network effectively.

• Nano
• /
• v.13 no.10
• /
• pp.1850119.1-1850119.6
• /
• 2018

$Eu^{3+}/Tb^{3+}$ co-doped nanocomposite containing $CeO_2$ nanocrystals was successfully prepared by an in situ sol-gel polymerization approach. High-resolution transmission electron microscopy demonstrated the homogeneous precipitation of $CeO_2$ nanocrystals among the polymethylmethacrylate (PMMA) matrix. The thermal stability and UV-shielding capability of the obtained nanocomposite were improved with increase of $CeO_2$ content. The tuning of the emissive color from green and yellow to red can be easily achieved by varying the dopant species and concentration. These results suggested that the obtained nanocomposite could be potentially applicable in transparent solid-state luminescent devices.

• Journal of Information Processing Systems
• /
• v.15 no.5
• /
• pp.1082-1095
• /
• 2019

Camera calibration is an important part of machine vision and close-range photogrammetry. Since current calibration methods fail to obtain ideal internal and external camera parameters with limited computing resources on mobile terminals efficiently, this paper proposes an improved fast camera calibration method for mobile terminals. Based on traditional camera calibration method, the new method introduces two-order radial distortion and tangential distortion models to establish the camera model with nonlinear distortion items. Meanwhile, the nonlinear least square L-M algorithm is used to optimize parameters iteration, the new method can quickly obtain high-precise internal and external camera parameters. The experimental results show that the new method improves the efficiency and precision of camera calibration. Terminals simulation experiment on PC indicates that the time consuming of parameter iteration reduced from 0.220 seconds to 0.063 seconds (0.234 seconds on mobile terminals) and the average reprojection error reduced from 0.25 pixel to 0.15 pixel. Therefore, the new method is an ideal mobile terminals camera calibration method which can expand the application range of 3D reconstruction and close-range photogrammetry technology on mobile terminals.

• Advances in concrete construction
• /
• v.13 no.4
• /
• pp.281-289
• /
• 2022

3D printing cement-based materials (3DPCBM) is an innovative rapid prototyping technology for construction materials. This study is tested on the rheological behavior, printability and buildability of steel slag (SS) content based on the extrusion system of 3D printing. 0, 8 wt%, 16 wt%, 24 wt%, 32 wt% and 40 wt% SS was replaced cement, The test results revealed that the addition of SS would increase the fluidity of the printed paste, prolong the open time and setting time, reduce the plastic viscosity, dynamic yield stress and thixotropy, and is beneficial to improve the pumping and extrudability of 3DPCBM. With the increase of SS content, the static yield stress developed slowly with time which indicated that SS is harmful to the buildability of printing paste. The content of SS in 3DPCBM can reach up to 40% at most under the condition of satisfying rheological property and buildability, it provides a reference for the subsequent introduction of SS and other industrial solid waste into 3DPCBM by explored the influence law of SS on the rheological properties of 3DPCBM.

• Nuclear Engineering and Technology
• /
• v.55 no.5
• /
• pp.1791-1801
• /
• 2023

The multi-physics coupled methodologies that have been widely used to analyze the complex process occurring in nuclear reactors have also been used to the R&D of numerical reactors. The advancement in the field of computer technology has helped in the development of these methodologies. Herein, we report the integration of ADPRES code and RELAP5 code into the SALOME-ICoCo framework to form a multi-physics coupling platform. The platform exploits the supervisor architecture, serial mode, mesh one-to-one correspondence and explicit coupling methods during analysis, and the uncertainty analysis tool URANIE was used. The correctness of the platform was verified through the NEACRP-L-335 benchmark. The results obtained were in accordance with the reference values. The platform could be used to accurately determine the power peak. In addition, design margins could be gained post uncertainty analysis. The initial power, inlet coolant temperature and the mass flow of assembly property significantly influence reactor safety during the rod ejections accident (REA).

• Journal of Pharmacopuncture
• /
• v.27 no.1
• /
• pp.21-26
• /
• 2024

Objectives: Pulse is a method of Korean medicine diagnosis and is an important clue to detect the organs, nature, and progress of the disease. Pulse examination is included in the basic examination of Korean medicine doctors, but there is no standardized method for diagnosing pulse although the types and methods of the pulse taking are briefly described in the literature, making it difficult to spread the examination method. In this regard, I would like to propose an objective evaluation method. Methods: Although the importance of pulse examination and the method of pulse examination are known in the literature, it is difficult for undergraduate students or inexperienced Korean medicine doctors to access it, so in this paper a method of marking the size of the pulse power in the blank space for objective evaluation was devised and presented. Results: The size of the pulse power should be indicated using the 1-cell, 3-cell, or 5-cell method according to the left and right wrists and the cun, guan and chi on both sides. Conclusion: The method of pulse diagnosis is an important diagnostic method as a verification process for making a Korean medical diagnosis. The remaining Korean medicine diagnostic methods, including pulse diagnosis, also need to undergo objectification. It is believed that the objectification of these diagnostic methods will lead to an improvement in the treatment rate of Korean medicine.

• The Plant Pathology Journal
• /
• v.25 no.1
• /
• pp.91-94
• /
• 2009

An unreported disease of garlic was observed in commercial fields in Jiangsu province, China. The symptoms started as water soaked lesions at the base of the leaves. Later, water-soaked areas developed on stems and spread to the internal tissues, followed by yellowing and necrosis along leaf edges and soft rot of the stems. The causal organism isolated from symptomatic plants was identified as Pseudomonas fluorescens based on its biochemical and physiological characteristics and confirmed by the cellular fatty acid composition and Biolog data as well as 168 rRNA gene sequence analysis. The bacterial isolates caused similar symptoms when inoculated onto garlic plants. In addition, leek and shallot were susceptible to the P. fluorescens pathogen. However, the P. fluorescens pathogen failed to cause any symptoms when it was inoculated onto 15 other plants. This is the first report of a bacterial disease of garlic caused by P. fluorescens in China.

• Asian Pacific Journal of Cancer Prevention
• /
• v.13 no.4
• /
• pp.1377-1382
• /
• 2012

Morphine is not only an analgesic treating pain for patients with cancer but also a potential anticancer drug inhibiting tumor growth and proliferation. To gain better insight into the involvement of morphine in the biological characteristics of gastric cancer, we investigated effects on progression of gastric carcinoma cells and the expression of some apoptosis-related genes including caspase-9, caspase-3, survivin and NF-${\kappa}B$ using the MGC-803 human gastric cancer cell line. The viability of cells was assessed by MTT assay, proliferation by colony formation assay, cell cycle progression and apoptosis by flow cytometry and ultrastructural alteration by transmission electron microscopy. The influences of morphine on caspase-9, caspase-3, survivin and NF-${\kappa}B$ were evaluated by semi-quantitative RT-PCR and Western blot. Our data showed that morphine could significantly inhibit cell growth and proliferation and cause cell cycle arrest in the G2/M phase. MGC-803 cells which were incubated with morphine also had a higher apoptotic rate than control cells. Morphine also led to morphological changes of gastric cancer cells. The mechanism of morphine inhibiting gastric cancer progression in vitro might be associated with activation of caspase-9 and caspase-3 and inhibition of survivin and NF-${\kappa}B$.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2014.02a
• /
• pp.279.1-279.1
• /
• 2014

글래스(glass), 폴리머 또는 쿼츠와 같은 투명기판은 렌즈, 디스플레이, 광검출기, 광센서, 발광다이오드 및 태양전지와 같은 광 및 광전소자 분야에서 널리 사용되고 있다. 이러한 소자들의 경우, 광추출 또는 광흡수 효율을 향상시키는 것이 매우 중요하다. 그러나 투명기판의 경우, 약 1.5의 굴절율로 인해 표면에서 4% 반사가 발생되는데, 이러한 광학적 손실은 소자의 성능을 저하시키는 원인이 된다. 따라서, 글래스와 공기 경계면에서 발생되는 광손실을 줄이기 위한 효율적인 무반사 코팅이 필요하다. 최근, 우수한 내구성 뿐만 아니라, 광대역 파장 및 다방향성에서 무반사 특성을 보이는 서브파장 주기를 갖는 나노구조(subwavelength structures)의 형성 및 제작 공정에 관한 연구가 보고되고 있다. 이러한 나노구조는 경사 굴절율 분포를 가지는 유효 매질을 형성하기 때문에 투명기판 표면에서의 Fresnel 반사로 인한 광손실을 줄일 수 있다. 또한, 무반사 서브파장구조를 형성하기 위한 패터닝 방법으로, 간단/저렴하고 대면적 제작이 용이한 열적 응집 공정을 이용한 자가정렬된 금속 나노입자 형성 기술이 널리 사용되고 있다. 따라서 본 실험에서는 열적 응집현상에 의해 형성된 비주기적 금 나노입자 식각 마스크 패턴 및 유도결합 플라즈마 장비를 이용하여 글래스 기판 위에 무반사 서브파장 나노구조를 제작하였다. 금 나노패턴 및 제작된 글래스 서브파장 나노구조의 식각 프로파일은 주사전자현미경을 사용하여 관찰하였으며, UV-Vis-NIR 스펙트로미터를 사용하여 빛의 투과율을 측정하였다. 또한, 제작된 샘플들에 대해서, 표면 접촉각 측정 장비를 이용하여 표면 wettability를 조사하였다.

• Journal of Haehwa Medicine
• /
• v.13 no.2
• /
• pp.231-249
• /
• 2004

This study analyzed the contents of the research papers concerning the common cold recorded in Chinese medical journal published over the period between 2000 and 2004. As a result, the following conclusion was drawn. 1. Among the clinical research papers, There are a lot of treatment papers of traditional chinese medicine in the method of treatment. There are a lot of papers about Feng-Re-Xing(風熱型) and Xu-Zheng-Xing(虛證型) in the Bian-Zheng-Lei-Xing(辨證類型) 2. "Zhong-Yi-Xu-Zheng-Bian-Zheng-Can-Kao-Biao-Zhun" ("中醫虛證辨證參考標準"), "Zhong-Yi-Nei-Ke-Wu-Ban-Jiao-Cai"("中醫內科五版敎材"), "Zhong-Hua-Ren-Min-Gong-He-Guo-Zhong-Yi-Yao-Hang-Ye-Biao-Zhun"("中華人民共和國醫藥行業標準"), "Gan-Mao-Zhen-Duan-Biao-Zhun"("感冒診斷漂準"), "Zhong-Yi-Bing-Zheng-Zhen-Duan-Liao-Xiao-Biao-Zhun"("中醫病證診斷療效標準"), "Quan-Guo-Gao-Deng-Yi-Xue-Yuan-Xiao-Zhong-Yi-Zhuan-Ye-Jiao-Cai"("全國高等醫藥院校中醫專業敎材") are used as the criterion for diagnosis in Chinese medicine. 3. It is mainly used "Zhong-Yi-Bing-Zheng-Zhen-Duan-Liao-Xiao-Biao-Zhun"("中醫病證診斷療效標準") as the criterion for treatment effect evaluation, and symptom of traditional chinese medicine, the frequency and the duration of common cold, measurement of immunologic function are used as assistant evaluation indicator. 4. The research papers reported that the use of prescriptions such as Chai-Qi-Fang-Jiao-Tang, Tui-Re-He-Ji(退熱合劑), Ti-Xu-Gan-Mao-He-Ji(體虛感冒合劑), Yu-Ping-Feng-San-He-Gui-Zhi-Tang(玉屛風散合桂枝湯), Chai-Guan-Jie-Re-Ke-Li(柴貫解熱顆粒), Hu-Qin-He-Ji(蒿芩合劑), Lian-Hua-Feng-Cha(蓮花峰茶), Kang-Gan-He-Ji(抗感合劑), Bing-Du-He-Ji(病毒合劑), Zhong-Gan-Ling-Pian(重感靈片) led to the high efficacy 5. The pharmacological research papers reported that Yu-Ping-Feng-San(玉屛風散) have influence on IgA, phagocytic function of macrophage, the total number of splenocyte and PEC.