DC 마그네트론 Co-sputtering 시스템을 이용하여 증착한 GAZO 박막의 전기적 및 구조적 특성

Luo Jie(Jie Luo),박세훈(Se-hun Park),송풍근(Pung-keun Song) 한국표면공학회 2009 한국표면공학회지 Vol.42 No.3

Ga/Al doped ZnO (GAZO) thin films were prepared on non-alkali glass substrate by co-sputtering system using two DC cathodes equipped with AZO (Al2O3:2.0 wt%) target and GZO (Ga₂O₃:6.65 wt%) target. This study examined the influence of Al/Ga concentration and substrate temperature on the electrical, structural and optical properties of GAZO films. The lowest resistivity 1.95×10<SUP>?3</SUP> Ω㎝ was obtained at room temperature. With increasing substrate temperature, resistivity of GAZO film decreased to a minimum value of 7.47×10<SUP>?4</SUP>Ω㎝ at below 300℃. Futhermore, when 0.05% H₂ gas was introduced, resistivity of GAZO film decreased to 6.69×10<SUP>?4</SUP>Ω㎝. All the films had a preferred orientation along the (002) direction, indicating that the deposited films have hexagonal wurtzite structure formed by the textured growth along the c-axis. The average transmittance of the films was more than 85% in the visible light range.

Comparison of Vinorelbine, Ifosfamide and Cisplatin (NIP) and Etoposide and Cisplatin (EP) for Treatment of Advanced Combined Small Cell Lung Cancer (cSCLC) Patients: A Retrospective Study

Luo, Jie,Wu, Feng-Ying,Li, Ai-Wu,Zheng, Di,Liu, Jin-Ming Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.9

Objective: To compare efficacy and safety profile of vinorelbine, ifosfamide and cisplatin (NIP) with etoposide and cisplatin (EP) in the treatment of advanced combined small cell lung cancer (c-SCLC). Methods: From January 2006 to December 2010, 176 patients with advanced c-SCLC were enrolled. The primary endpoint was overall survival (OS) and the secondary endpoints were progression free survival (PFS), response rate (RR) and toxicity. Results: Overall RR was 30.0% in the NIP and 38.5% in the EP group; there was no significant difference (P=0.236). The PFS in the EP group was little longer than that of NIP group, with 6.5 months for EP and 6.0 months for NIP group, but the difference was statistically non-significant (P=0.163). The median OS and one year survival rates were 10.4 months and 36.3% for NIP group, and 10.8 months and 49.0% for EP respectively, EP showing a survival benefit, although this was not statistically significant. Both groups well tolerated the adverse effects. The incidence of grade I-II leucopenia and alopecia in the NIP group was significantly higher than that of EP group (32.5% vs. 10.4% (P<0.001, 35.0% vs. 12.5%, P<0.001). Conclusion: the ORR, PFS and OS in NIP were slightly inferior to traditional regimen EP. The toxicity of NIP can be considered tolerable. The usage of three drugs combination in the treatment of mixed SCLC remains uncertain. Nevertheless, the results need to be further confirmed by large, prospective clinical trials.

Fabric Defect Detection Using Adaptively Tuned Gabor Filters

Luo Jie,Hu Quan,Bi Mingde,Ao Fei 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.8

A new fabric defect detection algorithm base on Gabor filters is proposed. The spectral characteristics of both fabric texture and defects are analyzed. Gabor wavelet which can be considered as a bank of Gabor filters are used for the decomposition of fabric image. Based on spectral characteristics of fabric texture and defects, a new tuning method of Gabor wavelet is proposed to enhance the energy of defective region and attenuate the energy of normal texture. Decomposition images from different scales and orientations are fused into a single one to emphasize the presence of different kinds of defects. For comparison, the performance of proposed method as well as other two other defect detection methods using Gabor filters is evaluated with typical fabric defect samples. The experiment results obtained indicate that the proposed method is more effective than the other two.

Consensus in Multi-Agent Systems with Nonlinear Uncertainties under a Fixed Undirected Graph

Jie Luo,Chengyu Cao 제어·로봇·시스템학회 2014 International Journal of Control, Automation, and Vol.12 No.2

This paper presents consensus algorithms by integrating cooperative control and adaptive control laws for multi-agent systems with unknown nonlinear uncertainties. An ideal multi-agent system without uncertainties is introduced first. The cooperative control law, based on an artificial potential function, is designed to make the ideal multi-agent system achieve consensus under a fixed and connected undirected graph. The presence of uncertainties will degenerate the performance, or even destabilize the whole multi-agent system. The L1 adaptive control law is therefore introduced to handle unknown nonlinear uncertainties. Two different consensus cases are considered: 1) normal consensus—where all agents reach an agreement on an initially undetermined position and velocity, and 2) consensus with a virtual leader—where all agents’ states converge to the virtual leader’s states. Under a fixed and connected undirected graph, the presented consensus algorithms enable the real multi-agent system to stay close to the ideal multi-agent system which achieves consensus with or without a virtual leader. Simulation results of 2-D consensus with nonlinear uncertainties are provided to demonstrate the presented algorithms.

DC 마그네트론 동시방전 시스템을 이용하여 증착한 GAZO 박막의 특성 평가

Luo Jie,박세훈,송풍근 한국표면공학회 2009 한국표면공학회 학술발표회 초록집 Vol.2009 No.-

A NOTE ON A CLASS OF CONVOLUTION INTEGRAL EQUATIONS

LUO, MIN-JIE,RAINA, R.K. The Honam Mathematical Society 2015 호남수학학술지 Vol.37 No.4

This paper considers a class of new convolution integral equations whose kernels involve special functions such as the generalized Mittag-Leffler function and the extended Kummer hypergeometric function. Some basic properties of interconnection with the familiar Riemann-Liouville operators are obtained which are used in fiding the solution of the main convolution integral equation. Several consequences are deduced from the main result by incorporating certain extended forms of hypergeometric functions in our present investigation.

Study on the Convergence Experience of “Five senses” in Furniture Design

Luo, Bin jie(로빈걸) 한국전시산업융합연구원 2021 한국과학예술융합학회 Vol.39 No.2

The 21st century is an era of rapid development of world economy and technology, an era of highly developed human material culture, and an era of high demand for human spiritual experience. However, in order to meet the initial basic needs of human beings, the standardized batch design and production of furniture products, which are most closely related to human life, making the functions of furniture products more and more single. Consumers’ unilateral sensory stimulation of basic functions has gradually lost its aesthetic power. The products that can attract consumers’ attention or purchase, are not only practical in material aspects, but also spiritual in satisfying various sensory stimulation. Explore the emotional design method of modern furniture, based on the experience of five senses, enrich the design theory system of furniture products, better guide the future furniture design practice with the experience of five senses as the core, make furniture design products more in line with the needs of social development, and make people’s body and mind have more sensory interaction with furniture products. Through the analysis of literature and materials, starting from the concept of five senses, this paper expounds the application enlightenment of "five senses" experience in book design, packaging design and landscape design, and explores the innovative design ideas and methods of multiple experiences in furniture design from "five senses" - visual representation, auditory response, tactile sensation, olfactory imagination and taste perception. Finally, the case questionnaire survey and results analysis. In the diversified functional design of furniture, realizing the interactive five-sense experience, developing the design concept of furniture products, and increasing the competitive advantage of furniture products in the market, will not only contribute to the personalized innovation and development of modern furniture, but also meet the growing spiritual needs of consumers in the market environment of experience economy.

Data density-based RGB color component feature extraction and area measurement method for silkworm

Luo Yunyun,Wen Chunming,Wen Jie,Xu Qing,Liang Xiang,Yang Jie,Lan Zimian 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.4

Accurate measurement of silkworm area is an essential part of efficient automated farming. The manual mea surement of silkworm area in large silkworm mounts has problems such as low accuracy and low efficiency. To address the problem that it is difficult to measure the area of silkworms in the silkworm holders accurately, this paper proposed a method to remove the background of color images based on RGB color components. In this method, the color component features of the silkworm rearing bed image were extracted. The K-means method was improved by the offset of component data peak density and the recalculation of the clustering center. Then, using the new clustering center to calculate the segmentation threshold point. After removing the background area, estimated the proportion of silkworm area in the silkworm rearing bed. In this paper, the area measurement experiments were carried out in different luminance environments for sparse and dense silkworm rearing bed images. After processing, the results of the proposed method were compared and analyzed with those of other segmentation methods. The results showed that the proposed intelligent segmentation threshold judgment method based on the RGB components difference feature has the lowest error rate, and the average accuracy of measurement is 87.29%. The method in this paper could effectively reduce the interference of ambient light on silkworm and mulberry leaves segmentation recognition, which might help improve the accuracy of measuring silkworm area.

A NOTE ON A CLASS OF CONVOLUTION INTEGRAL EQUATIONS

( Min Jie Luo ),( R. K. Raina ) 호남수학회 2015 호남수학학술지 Vol.37 No.4

This paper considers a class of new convolution integral equations whose kernels involve special functions such as the generalized Mittag-Le²er function and the extended Kummer hypergeometric function. Some basic properties of interconnection with the familiar Riemann-Liouville operators are obtained which are used in finding the solution of the main convolution integral equation. Several consequences are deduced from the main result by incorporating certain extended forms of hypergeometric functions in our present investigation.

충칭 지하철역 공간의 지역 문화 표현에 관한 연구

로빈걸 ( Luo¸ Bin Jie ) 한국기초조형학회 2021 기초조형학연구 Vol.22 No.4

지하철의 신속함과 시간이 정확한 특징으로 시민들의 이동수단 1순위로 자리잡았다. 지하철 건설이 활발해지면서 지하철역도 늘고 있었다. 그런데 획일적인 지하철역 공간은 독특한 시각인식이나 지역 인식성이 부족한 실정이다. 본 연구의 목적은 자지역문화가 특정 시기에 자연적 요인과 사회적 요인 등에 의해 형성된 일종의 문화기호와 문화축소를 밝히고 자지역문화와 지하철역 공간이 상호 보완할 수 있는 관계를 분석하여 지하철역 공간의 문화적 표현의 독특성을 높인다. 이어 현지 사례조사법을 적용하여 충칭(重慶)의 지하철 노선 5개, 총 13개의 지하철역을 분석·연구했다. 인터넷 정보를 바탕으로 지하철역 6개 설문조사를 했다. 조사결과에 따르면 특정 문화 주제의 지하철 공간 설계를 지지하는 응답자는 90.6%로 나타났다. 지하철 공간에서 나타난 지역문화에 대해 순위를 매긴 결과는 자기구(磁器口)역만 지역 문화를 갖고 있다는 것과 다른 역은 지역 문화가 있지만 헷갈리기 쉬운 것으로 나타났다. 지하철 공간에서 지역문화의 표현에 대해 만족한다는 응답은 12.78%에 그쳤다. 그리고 23.68%는 지하철 공간의 문화디자인을 꼼꼼히 살펴본다고 답했다. 아울러 미래 충칭(重慶) 지하철역에서의 지역문화에 대한 조사는 인터랙티브 체험장치를 통한 동적 표현(65.23%), 정태적 표현(68.23%)이였다. 따라서 조사결과에 따르면 기존 지하철 노선에 표식된 색깔과 문화주제를 참조하여 제시한다. 그리고 '하나의 중심선'의 방향으로 충칭(重慶) 지하철역 공간의 문화 표현에 대한 디자인 아이디어를 제공하고, 지하철역마다 통일되고 차별화된 지역문화를 형성할 수 있도록 하였다. The fast speed and punctuality of which have made the subway become the preferred means of transportation for citizens. With the continuous improvement of subway construction, the number of subway stations is gradually increasing while the monotonous subway station space lacks unique visual recognition and regional recognition. The purpose of this paper explains that the regional culture is a kind of cultural symbol and microcosm formed under the influence of natural and social factors in a specific period, and analyzes the complementary relationship between regional culture and subway station space, so as to enhance the uniqueness of regional cultural expression in subway station space. Then, using the method of field case study, this paper analyzes and studies five subway lines in Chongqing, a total of 13 stations. And according to network information screening, six subway stations are surveyed through questionnaire. The survey finds that 90.6% of respondents support the subway space design with a specific cultural theme. After the expression of regional culture in the subway space is ranked and scored, the results show that Ciqikou Station has regional cultural characteristics. Only 12.78% of respondents are very satisfied with the regional cultural expression of the subway station space. 23.68% of respondents say that they will appreciate the cultural design of the subway space. As to the expression of regional culture in Chongqing subway station space in the future, 65.23% of respondents hope that it can be expressed through dynamic interactive experience devices and 68.23% of them prefer static interactive experience devices. According to the survey results, it is proposed to referring to the iconic color and cultural theme of the existing subway lines, and to provide design ideas for the cultural expression of Chongqing subway station space in the direction of “One main line”, and to make subway stations of each subway line form a unified and distinct regional cultural content.