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WLSD: A Perceptual Stimulus Model Based Shape Descriptor
( Jiatong Li ),( Baojun Zhao ),( Linbo Tang ),( Chenwei Deng ),( Lu Han ),( Jinghui Wu ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.12
Motivated by the Weber`s Law, this paper proposes an efficient and robust shape descriptor based on the perceptual stimulus model, called Weber`s Law Shape Descriptor (WLSD). It is based on the theory that human perception of a pattern depends not only on the change of stimulus intensity, but also on the original stimulus intensity. Invariant to scale and rotation is the intrinsic properties of WLSD. As a global shape descriptor, WLSD has far lower computation complexity while is as discriminative as state-of-art shape descriptors. Experimental results demonstrate the strong capability of the proposed method in handling shape retrieval.
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JiaTong Li,WenBao Jia,DaQian Hei,Zeen Yao,Can Cheng 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.6
In this research, for improving the measurement performance of Prompt Gamma-ray Neutron ActivationAnalysis (PGNAA) set-up, a new optimization method for set-up design was proposed and investigated. At first, the calculation method for Signal-to-Noise Ratio (SNR) was proposed. Since the SNR could becalculated and quantified accurately, the SNR was chosen as the evaluation parameter in the newoptimization method. For discussing the feasibility of the SNR optimization method, two kinds of PGNAAset-ups were designed in the MCNP code, based on the SNR optimization method and the previous signaloptimization method, respectively. Meanwhile, the single element spectra analysis method was proposed, and the analysis effect of single element spectra as well as element sensitivity were used forcomparing the measurement performance. Since the simulation results showed the better measurementperformance of set-up designed by SNR optimization method, the experimental set-ups were built forthe further testing, finally demonstrating the feasibility of the SNR optimization method for PGNAA setup design
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( Chaofan Li ),( Ping Li ),( Wenkai Guo ),( Lei Chen ),( Jiatong Li ),( Rong Wang ),( Bing Chen ) 대한내과학회 2022 The Korean Journal of Internal Medicine Vol.37 No.1
Background/Aims: Anti-phospholipase A2 receptor (PLA2R) autoantibody is the main biomarker of idiopathic membra nous nephropathy (IMN). We aimed to find a new cutoff value of anti-PLA2R for patients with IMN and to explore the rele vance between this antibody and baseline clinical parameters. Methods: A total of 670 subjects including 374 IMN cases and 296 non-IMN controls were included between January 2017 and January 2020. All clinical parameters were collected at the time of renal biopsy. The levels of anti-PLA2R were detected by a commercial enzyme-linked immunosorbent assay (ELISA) kit. The optimal cutoff value was calculated by a receiver oper ating characteristic curve and compared in diagnostic efficiency. Results: The optimal cutoff value of anti-PLA2R for IMN was 7.45 RU/mL with the highest Youden index, and the corre sponding sensitivity, specificity, positive predictive value and negative predictive value were 80.75%, 97.97%, 98.05% and 80.11%, respectively. Anti-PLA2R levels in IMN patients demonstrated a significant positive correlation with serum creatinine and 24-hour urinary protein, while they showed a negative correlation with serum albumin and estimated glomerular filtra tion rate. Conclusions: The recommended cutoff value of anti-PLA2R is 7.45 RU/mL using ELISA detection for distinguishing IMN from non-IMN nephropathy. The level of anti-PLA2R is related to baseline renal function in IMN. This new threshold can im prove the diagnostic efficiency and facilitate early diagnosis of IMN.
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宿力嫄 ( Su-liyuan ),李佳童 ( Li-jiatong ) 경상대학교 교육연구원 2023 현대교육연구 Vol.35 No.1
The power of punishment for primary and secondary school teachers is the right of teachers to intervene and punish students in accordance with laws and certain procedures in order to realize the purpose of education. As the leader of school education and teaching activities, primary and secondary school teachers enjoy the right of educational punishment power of educational management, which is of great significance to ensure the achievement of educational and teaching objectives in primary and secondary schools. Punishment education and appreciation education complement each other. They are two important education methods for primary and secondary school students, and are an indispensable part of the education system. Therefore, most scholars and the public believe that primary and secondary school teachers should be endowed with the power of educational punishment. However, with the rapid development of the Internet, the network public opinion has greatly affected the normal exercise of the educational punishment power of primary and secondary school teachers. In addition, the non-standard management and legislation of education departments and schools on the power of educational punishment are not perfect, which leads to the great dilemma of teachers in exercising the power of educational punishment in teaching activities. So this paper on the basis of primary and secondary school education disciplinary rules (trial), from the analysis of primary and secondary school teachers education disciplinary power legal attribute and basis, expounds the teacher education punishment, analyzes the problems of the teachers, explore the teacher education disciplinary power legal system, determine the basic principles of teachers exercise disciplinary power, finally suggested perfecting the education disciplinary power legal system, especially the teacher education disciplinary legal basis, applicable scope, implementation methods and relief measures, etc. Improving the educational punishment system of primary and secondary school teachers is an inevitable requirement of the school administration and teaching according to law, which is not only to empower the power of teachers' education punishment, but also to provide a strong guarantee for the legitimate rights and interests of students.
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