The Advanced Measurement Technology for Precision Manufacturing and the Trend

Shuming Yang 한국생산제조학회 2018 한국생산제조시스템학회 학술발표대회 논문집 Vol.2018 No.10

An Improved Lightweight Two-Factor Authentication and Key Agreement Protocol with Dynamic Identity Based on Elliptic Curve Cryptography

( Shuming Qiu ),( Guosheng Xu ),( Haseeb Ahmad ),( Guoai Xu ),( Xinping Qiu ),( Hong Xu ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.2

With the rapid development of the Internet of Things, the problem of privacy protection has been paid great attention. Recently, Nikooghadam et al. pointed out that Kumari et al.’s protocol can neither resist off-line guessing attack nor preserve user anonymity. Moreover, the authors also proposed an authentication supportive session initial protocol, claiming to resist various vulnerability attacks. Unfortunately, this paper proves that the authentication protocols of Kumari et al. and Nikooghadam et al. have neither the ability to preserve perfect forward secrecy nor the ability to resist key-compromise impersonation attack. In order to remedy such flaws in their protocols, we design a lightweight authentication protocol using elliptic curve cryptography. By way of informal security analysis, it is shown that the proposed protocol can both resist a variety of attacks and provide more security. Afterward, it is also proved that the protocol is resistant against active and passive attacks under Dolev-Yao model by means of Burrows-Abadi-Needham logic (BAN-Logic), and fulfills mutual authentication using Automated Validation of Internet Security Protocols and Applications (AVISPA) software. Subsequently, we compare the protocol with the related scheme in terms of computational complexity and security. The comparative analytics witness that the proposed protocol is more suitable for practical application scenarios.

Multi-objective optimization of the vehicle ride comfort based on Kriging approximate model and NSGA-II

Shuming Chen,Tianze Shi,Dengfeng Wang,Jing Chen 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.3

The RMS of weighted acceleration, wheel dynamic load and suspension dynamic deflection are determined as evaluation indices ofvehicle ride comfort performance. A multi-body dynamic rigid-flexible coupling model of an in-wheel motor vehicle is built based on themulti-body system dynamics. The ride comfort results of ride comfort simulation and road test are well fitted. A kriging model is createdto describe the relationship of vehicle ride comfort evaluation indices and suspension parameters. A multi-objective optimization usingNSGA-II is processed using this model, and the vehicle ride comfort performance is improved by using the optimized suspension parameters.

An Approach to CAD Mesh Model Simplification Based on Engineering Feature Suppression

Shuming Gao,Fanqin Yang,Wei Zhao,Xiang Chen (사)한국CDE학회 2007 한국CAD/CAM학회 국제학술발표 논문집 Vol.2007 No.8

STUDY ON THE APPROACH TO EVALUATE PADDING QUANTITY OF WAVE PIPELINING USING LINEAR PROGRAM

Shuming, Chen,Haozhuan, Liu,Fujie, Chen,Xinjiong, Peng 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1

Wave pipelining is a technique for pipelining digital systems that can increase clock frequency without increasing the number of storage elements. An important issue for wave pipelining is to insert combinational logic delay for the shorter paths. Through the special linear program that we have implemented and run for example circuits, this paper discusses the existed approach to get the quantity of inserting delay, i.e., optimization using linear program, and explains why it is theoretically satisfactory but impractical to large problems. At the end of this paper, an outline of a new approach are presented which is believed to be more fit for the engineering view.

Recent progress in the device architecture of white quantum-dot light-emitting diodes

Shuming Chen,Heng Zhang,Qiang Su 한국정보디스플레이학회 2019 Journal of information display Vol.20 No.4

White-light-emission quantum dot light-emitting diodes (WQLEDs) have attracted great attention of late because they could have potential applications in both flat-panel displays and solid-state lighting due to their advantages of tunable emission spectra, low driving voltage, high luminous efficiency, and high brightness. Over the past decades, with the rapid development of both quantum dot (QD) materials and device structures, WQLEDs have achieved tremendous progress. This review investigates the influence of device architectures on the performance of WQLEDs. The importance and status of the WQLEDs based on CdSe-QDs are first discussed. Then WQLEDs with a mixed-QD single light emission layer (EML), a multilayered QD EML, and tandem structures are reviewed. WQLEDs based on cadmium-free QDs are also briefly introduced. Finally, the key challenges that WQLEDs are currently facing are identified, and some possible solutions are proposed for further developing stable and efficient WQLEDs.

STUDY ON THE APPROACH TO EVALUATE PADDING QUANTITY OF WAVE PIPELINING USING LINEAR PROGRAM

Chen Shuming,Liu Haozhuan,Chen Fujie,Peng Xinjiong 대한전자공학회 1992 대한전자공학회 Conference Vol.1992 No.2

20세기 초 하얼빈 러시아 망명문학에 나타난 중국 형상

류서명(Liu, Shuming) 한국노어노문학회 2023 노어노문학 Vol.35 No.4

20세기 초 중국의 동북지역 즉 ‘만주(满洲) 하얼빈에서의 러시아 망명문학은 중국현대문학사의 독특한 존재로서 러시아 ‘백은 시대의 문학적 특징을 살리면서도 중국민족의 특유한 풍습과 선명한 지역 색채를 띤 색다른 러시아문학일 뿐만 아니라 특수한 중국 문학이기도 하다. 중국 형상은 중국의 모든 관련 사물을 포함한 총체적 이미지로서 독특한 이국 형상으로 러시아 문학작품에 등장하였다. 이는 최근 새롭게 부흥하는 형상학 연구의 주요한 주제로 된다. 하얼빈 러시아 망명문학 소설에는 중국을 모티브로 창작된 작품들이 많이 등장하는데 당시 하얼빈에서 창작되고 발표된 소설들을 연구대상으로 그 속에 나타나는 중국의 삼림과 자연, 중국인, 중국문화에 관련된 이미지를 통하여 그에 대한 동정과 연민을 보여주려 하며 그 속에 비추어 나타나는 러시아이민들의 조국에 대한 그리움과 타국에서의 정체성, 미래의 생존에 대한 추구가 어떻게 나타나는지 살펴보려고 한다. 하얼빈 망명문학의 중국 형상을 연구하는 것은 새로운 시각으로 문화와 전통을 재조명하는 것으로 중요한 의미를 가지며 또한 향후 같은 시기 재만 조선인 문학작품 속의 중국 형상과도 비교할 수 있는 자료를 제공한다. In the early 20th century, Russian diaspora literature in Manchuria (northeast of China harbin) is unique in the history of modern Chinese literature, while preserving the literary characteristics of Russias white age, it has the unique customs and vivid regional colors of the Chinese people, it is not only Russian literature but also special Chinese literature. The Chinese image is an overall impression of all related objects in China, including all related objects in China, and appears in Russian diaspora works as a unique exotic shape. The Chinese image, which appeared in Russian diaspora literature, has become a major subject of newly revived morphological research in recent years. There are many works created with Chinese motifs in the Russian emigration literature in Manchuria, and this paper tries to show sympathy and compassion for Chinese forests, nature, Chinese, and Chinese culture by analyzing novels created and published in Manchuria by Russian writers who lived in Manchuria for a long time. In addition, I would like to examine how Russian immigrants longing for their homeland, their identity in other countries, and also look at their pursuit of future survival appear in light of that. Studying the Chinese Image of Russian emigration literature is important by re-examining culture and tradition from a new perspective, and it also provides the possibility to compare it with the Chinese image in the works of Korean literature in Japan at the same time in the future.

Dissolution Kinetics of Cerussite in Acidic Sodium Chloride Solutions

Qicheng Feng,Shuming Wen,Yijie Wang,Wenjuan Zhao,Jian Liu 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.4

The dissolution kinetics of cerussite in acidic sodium chloride solutions was investigated with respect to experimental variables such as particle size, stirring speed, sodium chloride concentration, hydrochloric acid concentration, and reaction temperature. Results show that leaching reagent concentration and reaction temperature have significant effects on the extraction of lead, whereas particle size and stirring speed have a relatively moderate effect on the leaching rate. The dissolution process followed the kinetic law of the shrinking core model, and a corresponding mixed control model was found suitable to represent the rate-controlling step. The apparent activation energy of this process was determined to be 40.46 kJ/mol, and a corresponding dissolution kinetic equation is also presented to describe the dissolution reaction.

Rapid Generation of Feature-based Multi-resolution FEM Model

Haipang Wu,Shuming Gao,Yue Gao,Ming Li,Yusheng Liu (사)한국CDE학회 2010 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8

Multi-resolution finite element (FE) mesh models for different accuracy requirements of analysis are needed and to improve analysis efficiency. This paper proposes a rapid feature-based approach to support the generation of multi-resolution FEM models. Given an input feature model with design features and analysis features, the proposed algorithm consists of three main steps for rapid construction of its associated FEM models. Firstly, the interfaces between every two features of the model are determined; then, the mesh model of each design feature or analysis feature is generated by taking the related interfaces as constraints; finally, the corresponding mesh models are selected to compose the multi-resolution FEM models at a specific level of resolution. Experiment results on practical engineering models also demonstrate that the proposed method is fast and effective.