Search all articles

This paper introduces VL-mac, a media access control (MAC) protocol for visible light communication (VLC)-based cognitive radio systems. VL-mac provides a full stack of access control primitives for users that operate at visible light frequencies to access the base station and for the base station to...

According to the first-principle based on density functional theory, the stability of the solid solutions of Au-Pd-M (M=Mo,Y,Zr) alloy systems were calculated. The results show that, adding the same percentage content, 1% Mo doped in Au-Pd solid solution is the most stable phase structure. When doped...

We consider solving a distributed permutation flowshop scheduling problem (DPFSP) with the objective of minimizing makespan. The problem has two dimensions: assigning jobs to factories and scheduling the jobs assigned to each factory. We use GA to solve this problem. In the proposed algorithm we employ...

Non-compete is an important obligation of directors, and also is an important manifestation of directors’ loyalty obligations. Directors are generally involved in the company’s management, so they are familiar with company’s trade secrets, major business decisions, investment and other insider information....

The method of controlling exhaust gas uses cross-section controller to increases the rotational speed of the turbine or uses composite pressurized way to improve working conditions at low engine supercharger requirmente. Through analysising the exhaust gas flow path of the working chamber casing airflow...

A series of high concentration of vanadium catalysts were prepared by the citric acid method and was evaluated for the selective catalytic reduction of NOx by ammonia (NH3-SCR) at middle-low temperature (180-280oC). Experimental results showed that V-W/SiTiOx exhibited the good activity on NH3-SCR reactions,...

It is rather difficult to store and manage the diverse data source of ecological development of Dianchi Lake basin through traditional RDBMS due to their various types, massive data, complex relationship as well as their dynamic changes. We established graphics database and visual query system to analyse...

Miao martial arts drum dancing, combining sports with art, shows the two features wiht national characters and artistry . This paper, using the field investigation method, literature method and so on, the history origin, main forms , inheriting way, main characteristics and survival status of Miao martial...

In the present study, intermediate products formed during gold-bearing pyrite biooxidation by moderately thermophilc bacteria at 42℃ were studied by combined using XRD, Mössbauer and Raman spectroscopy. Biooxidation slowdown since 8th day showed that some intermediate products might hampered the further...

This article is based on an in-depth investigation of tourist information system and its current situation. Taking into consideration the requirements of tourist information system by using the computer science, network technique, the database technique and management principles and methods, we designed...

A decade ago, in September 2006, the European Commission sanctioned Amrita University, Kerala, to design, develop, and deploy a wireless sensor network-based landslide monitoring system. The deployment was completed in June 2009, at the Anthoniar Colony Landslide in Munnar, Kerala, and the system has...

this study examines the brand attitudes of smartphone user. In particular, it examines how users brand knowledge and their self-image congruence can affect their brand attitudes towards smartphone products. Previous research indicates that brand knowledge and self-congruence can facilitate positive behavior...

At present, the research is not enough for the vertical displacement and stress level in domestic.The paper aims how the law between the vertical displacement and stress level by shear test for loess.The results showed that: under the high shear stress level,the effect of soaking sample of vertical deformation...

A secure two-way identity authentication scheme of WiFi environment is raised from the perspective of security and the load capacity mobile terminal according the increasing serious of wireless network security. The scheme is based on one-time password authentication technology and the digital signature...

In the process of supervision and inspection of Jiangxi power grid, there are some phenomena in 35kV Xin'an substation, such as abnormal sound from transformer and capacitor, and overheating in capacitor. The bus and capacitor power quality test found serious harmonic exceeding. Two methods of harmonic...

In this paper, the displacement discontinuity initiation conditions are deduced based on potential energy principle. The finite element discrete of weak form of governing equation is developed by combination of displacement discontinuity evolution conditions and discontinuity connection which material...

The problem of wave propagation in a semi-infinite medium and its interaction with the structure was awalys encountered in the engineering numerical simulation.Artificial boundary conditions of truncated place in semi-infinite domain is the key to ensure accuracy of the calculation results.Adopting fixed...

This paper proposes a method of 3D(threedimensional) object recognition using binocular parallax. The calibration object is a 2D(two-dimensional) object and a calibration label is placed on its plane. The internal, external, and distortion parameters of the camera are collaborated by taking pictures...

Verification of complex SoC designs suffers from X-optimization issues that often conceal design bugs. The deployment of low power techniques such as power-shutdown in today’s SoC designs exacerbate these X-optimism issues. To address these problems we adopted a new simulation semantic that more accurately...

According to the situation of water plugging in horizontal well using screen pipe completion in Liaohe oilfield, emulsion polymer gel, relative permeability correctives and oil soluble resin are studied in the paper. Three systems are evaluated in the lab. The results indicate that emulsion polymer gel...

STEM specifically refers to science, technology, engineering, and mathematics. STEM education provided an opportunity to develop STEM literacy for the next generation. Currently, there is not an agreement of the particulars in education, or in standards that define and how to measure STEM Literacy. STEM...

This research was carried out in the Coastal area of Pantai Labu Subdistrict , Deli Serdang Regency, North Sumatra. The purpose this research is to identify the requirements for mangrove growth and development based on aspects of slope, soil, water, sea tide, and climate in Coastal area of Pantai Labu...

Background/Objectives: city has been viewed as a place of location of productive forces; therefore, it attracts investment and skilled personnel. At the same time, urban sprawl causes multiple acute social issues. The main city development concepts are given and methods of evaluation of the city socio-economic...

Based on the construction of the comprehensive financial cycle index, this paper uses the McCallum rule to empirically test the interaction mechanism between financial cycle and monetary policy. The results show that the interaction between the financial cycle and monetary policy has certain "asymmetry"...

Previous studies have found that valuation by feeling and calculation have an impact on prosocial consumer behavior, however they only focus on the impact of positive emotional value, meanwhile they rarely use field experiments to carry out the empirical analysis. This paper explores the effects of valuation...

In this paper, the impact of market concentration and non-interest income on the stability of banks has been investigated based on the panel data of 17 Commercial Banks in China from 2007 to 2017. The results indicate that there is a significant negative correlation between the market structure concentration...

Innovative architectural forms arise and develop at the intersection of science and art, architecture and engineering. Architecture and design have become the areas of practical application of mathematical concepts of spatial fragmentation. The approaches used in the classical geometry and “new” non-Euclidean...

This paper starts from consumers’ behavioral characteristics and rules, and conducts an empirical study on consumers’ cognition and purchase intention of VR devices by taking potential VR devices buyer as the research objects. Online questionnaire and field questionnaire are adopted. Through the analysis...

MOOC is the application of information technology in the field of education, changing the traditional teaching mode and providing students with a free and open learning environment. Based on the relevance learning theory, humanistic learning theory and educational psychology theory, this paper points...

Based on evaluation index system of national high-tech industrial development zone, this issue, with indexes corresponding to four capabilities of industrial upgrading and structural optimization, knowledge creation and technical innovation, internationalization and global competition as well as sustainable...

Based on the preliminary studies on subjects studied this research review of multimedia instructional videos industrial sewing machine operation. This study aims to identify learning materials, create a multimedia design instructional videos, perform and analyze sis of the results of validation. The...

On the material of the political talk show Maybrit Illner and pre-election debates, the article analyzes the mechanism of influence implemented by a combination of semiotic means within the multimodal interaction. The cognitive impact model in multimodal interaction takes into account components of different...

Based on the in-depth analysis of the disadvantages and benefits of traditional college English teaching methods, the key problems to be solved in the course of curriculum reform are identified. Output-oriented approach is conducive to overcoming the disadvantage of "separation of learning and application"...

With the development of science and technology and the progress of society, many large-scale equipment with extremely complex structure and high technology density is gradually equipped with our army, and such equipment has very high requirements for the technical level of personnel in the maintenance...

During the execution of flight schedule, the capacity of airport and airspace is often reduced by external dynamic factors such as weather conditions and flow control, which makes it impossible to meet the flow demand of airport and airspace, resulting in flight delay. In order to better implement tactical...

In late Qing Dynasty, Western knowledge was gradually introduced to China. Against this historical background, Huang Shiling lived in Guangzhou, a trading port city at that time, in different periods of his life, and absorbed many thoughts of foreign arts. His art of paintings and seal carvings was simultaneously...

This paper uses eight indicators of consumption as explanatory variables to construct a fitting and prediction model for the monthly total retail sales of consumer goods. This essay used data from January 2005 to June 2018 for empirical study. The result is good with 1.99% fitting MAPE and 2.39% prediction...

Systematic desensitization was used to overcome the earthworm phobia of a 20-year-old female who is a college student majoring in Linguistics. This treatment is important because she will conduct a Real Work Lecture (K2N) related to plantation activities. Her earthworm phobia is considered to interfere...

“Réminiscences de Don Juan” is one of the ten most difficult piano music in the world ,this work is adapted from the opera "Don Giovanni" by Hungarian pianist Franz Liszt. The technique is very difficult, the scale is also very grand .Based on the original work’s rich expression he made the work grand...

The state of activity of agro-industrial complex enterprises (AIC) in the context of its components is investigated, on the basis of the analysis of dynamics of changes in the main indicators of agricultural production, the problematic aspects of innovative activity of Ukraine in the agricultural market...

This study aims to identify indicators of higher educations performance based on QS Stars, to design the higher educations performance based on QS-Stars Method, and to prove the trial and error of the application of higher education performance based on QS Stars and ICT Web. As one of the national education...

Traditional Wushu is typical representative of Chinese culture, it contains the connotation and momentum of Chinese culture, become a window for China to show its culture soft power and for the foreigners to understand Chinese culture. Students in school are the main force in the society competitive...

School-enterprise cooperation is the main ways to improve the quality of talents in Colleges and universities. The purpose of this paper is to improve the practical application ability of college graduates by studying the problems between the current situation of higher education classroom teaching and...

In the early Chinese translation of western medicine, translators borrowed some terminologies from Traditional Chinese Medicine (TCM). Their inappropriate translation led to the confusion of terminological concepts and connotations of the two different theoretical systems. These loanwords resulted in...

The purpose of the survey is to evaluate health care literacy level of TCM and the health condition of residents in Qingyang District of Chengdu and to analyze the factors affecting TCM health care literacy and health status, then to explore the correlation between them, and finally to provide a theoretical...

Big data expands the time and space for education. The combination of traditional education methods and modern technology facilitates the quality of education. Canada's English education for overseas immigrants from non-English speaking countries differs from English education in China in terms of teaching...

The concept of economy’s infrastructure component priority development assumes a significant increase in investment in new construction projects and an increase in the capacity of the railway infrastructure in Russia. Macroeconomic efficiency of the investment program is the most important instrument...

The paper reviews the electric traction network analysis, the distinctive features of its functioning, innovative switching to digital protection, the first results of trial operation, proposals for further improvements, using the monitoring and level increase of the automation operating system of the...

At present, the existing smart home subsystem uses different hardware and software and communication protocol. It has a single function and does not have a remote intelligent terminal and some of the traditional smart home system uses wired network set up, they have maintenance problems and poor system...

Based on the panel data of China's 31 provincial from 2005-2012 the paper using the spatial panel model to study the China's urbanization impact on domestic demand.