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( 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.
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.
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.
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.
20세기 초 하얼빈 러시아 망명문학에 나타난 중국 형상
류서명(Liu, Shuming) 한국노어노문학회 2023 노어노문학 Vol.35 No.4
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.
EXPERIMENT AND EVALUATION STUDY ON RATTLE NOISE IN AUTOMOTIVE SEAT SYSTEM
Linyuan Liang,Shuming Chen,Peiran Li 한국자동차공학회 2021 International journal of automotive technology Vol.22 No.2
With the reduction of vehicle interior noise, the Buzz, Squeak and Rattle (BSR) noises have become an intractable problem that needs to be tackled urgently. Seat system rattle noises have a large contribution to the passengers’ complaints, due to the close distance between the passengers and seats. The seat structure and its components can be sources of rattle noise based on their physical characteristics. The aim of the present paper is to characterize the sound quality property of rattle noise in seat system, and subsequently, use the characteristics of the rattle noises to assess the subjective responses to the noise. In this study, sound metrics are computed for the signals recorded at different points in the seat system. To be more specific, the signals are recorded before and after the durability test in different loading states. Consequently, the characteristics of the rattle noises were compared and analyzed, and the jury test was performed. On this basis, a rattle index and evaluation models were developed. It is expected that the developed rattle evaluation system and sound quality index can be used to reduce the automotive interior rattle noise in terms of subjective levels as well as objective levels.