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Yi Chao 이준국제법연구원 2017 Journal of East Asia and International Law Vol.10 No.2
Article 60 of the ICJ Statute provides a mechanism for interpreting a previous binding judgment in the event of dispute as to the meaning or scope of that judgment. Procedural legal issues such as jurisdiction and admissibility in interpretative proceedings under Article 60 are different from those in regular contentious or advisory proceedings before the ICJ. The Court has developed a set of concrete rules in its jurisprudence under the simple wording of Article 60 to adjudicate on these procedural issues. However, a case-by-case examination of the Court’s jurisprudence reveals that there is still no structurally clear and logically sound framework, because the ICJ fails to conceptually divide the issues of ‘power,’ ‘jurisdiction,’ and ‘admissibility’ in interpretative proceedings. In order to rectify this problem, this article proposes an analytical framework for the ICJ with a clearer conceptualization of the Court’s ‘power,’ ‘jurisdiction,’ and ‘admissibility’ under Article 60 to clarify the meaning of its previous judgments in interpretative proceedings.
Incoherent Frequency 12-tupling Microwave Signal Generation Scheme Based on Cascade Modulators
Yichao Teng,Pin Zhang,Xin Xu,Baofu Zhang 한국광학회 2021 Current Optics and Photonics Vol.5 No.4
Frequency-multiplication technology based on microwave photonic principles can be used to generate microwave and millimeter wave signals with a wide frequency tuning range. However, the existing cascaded external modulation frequency-tupling scheme needs to ensure the phase coherence of the modulated Radio Frequency (RF) signal, while the phase modulation directly limits the frequency tuning range of the external modulation frequency multiplication. In this paper, a novel approach for generating an incoherent frequency 12-tupling signal with cascade modulation is proposed. The structure of cascaded dual-parallel Mach-Zehnder modulators can generate a frequency 12-tupling signal. The proposed structure uses no filter or phase control of the RF driving signal. Microwave photonic frequencytupling was realized under incoherent conditions. Software simulations and experiments validated the proposed structure and proved that it can generate frequency 12-tupling microwave signals under incoherent conditions. Both the frequency range and reliability of the frequency-tupling system has been improved by the proposed structure.
A gender-based analysis of multidimensional poverty in China
Yichao WU,Di QI 이화여자대학교 아시아여성학센터 2017 Asian Journal of Women's Studies(AJWS) Vol.23 No.1
This paper investigates the multidimensional status of poverty in China using a gender framework. Five dimensions of deprivation were selected—health, nutrition, housing, education and income—in order to measure the severity of Chinese women’s poverty. Chinese Family Panel Studies (CFPS) were a source of rich information on individuals’ material wellbeing for this analysis. There are three main findings in this study: women are significantly more vulnerable to suffer from severe deprivation than men in China, especially with respect to the primary education, body mass index (BMI) and health conditions; in terms of multidimensional poverty status, women have a worse performance than men on average, with huge differences between rural and urban regions and among different provinces; many personal and household characteristics significantly shape women’s poverty experiences, as seen via the fixed effect logistic regression model.
A fuzzy-based impedance control for force tracking in unknown environment
Yichao Shen,Yan Lu,Chungang Zhuang 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.10
Industrial manufacturing operations, such as grinding and polishing, are characterized by relatively constant contact force. In this article, a fuzzy-based adaptive impedance is proposed, which can grind or polish workpieces of different materials with constant contact force. The environmental parameters are estimated by iterative calculation with recursive least squares (RLS). The impedance parameters, such as damping and stiffness, are taken as the outputs of the fuzzy controller. The proposed force controller can track the desired force without the prior knowledge of the environment information. Experiments are conducted in finishing tasks using the self-developed industrial robot to verify the adaptive impedance control. The environmental parameters are instantly estimated for the following adjustment of the impedance parameters, and the real time contact force shows that the adaptive fuzzy logic impedance controller can achieve better performance with the oscillation below 2 N as the machining surface of the workpiece is not predefined.
Yichao Dun,Lida Zhu,Shuhao Wang 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.9
The idea of integral calculus is used in traditional milling force prediction methods. In the traditional method, the milling cutter is divided into many micro-elements, the force of each micro-element is calculated, and then the integral summation process is applied to all the micro-elements. In traditional milling force prediction methods, both the workpiece and the tool are assumed to be rigid bodies. In this paper, the method is improved; the Fourier series expansion is used to approximate the periodic milling force and the workpiece is considered as a single degree of freedom spring-damping-vibration system. Through the forced vibration model of periodic force, the vibration displacement of the workpiece is obtained. Then, the radial cutting depth is corrected by the vibration displacement of the workpiece. Finally, the original milling force is corrected with the corrected radial cutting depth. The milling force prediction model based on thin-walled workpiece is obtained through the above process. The model is named as variable-radial-cutting-depth-algorithm (VRCDA). Finally, the accuracy of this model was verified through modal test and milling force acquisition experiments.