Augmented Reality in Smart Cities: A Multimedia Approach

Intro: This paper presents an advance overview of utilizing Augmented Reality (AR) in smart cities. Although, Smart cities contain six major aspects (mobility, economy, government, environment, living, and people), this paper focuses on three of them that have more potentiality in using virtual assistant (mobility, environment, and living). Methodology: Presenting a state-of-the-art review studies undertake between 2013 and 2017, which is driven from highlighted libraries is the aim of this research. After exact examine, 15 emphasized studies are chosen to divide the main aspects while 120 selective articles are supporting them. These categorizes have been critically compared with an aim, method and chronological perspectives. Results: First of All, Environmental issues (Museums industry) attract the most attention of researchers while the living issues (maintenance) have lower significant compare t latter and mobility (indoor-outdoor navigation) attract the least. Moreover, a close connection between academic and industry fields is going to be created. Conclusions: it has been concluded that, because of economic advantages, utilizing AR technology has improved in the tourism and maintenance. Moreover, until now, most of studies try to prove their concept rather than illustrate well stablished analytic approach. Because of hardware and software improvement, it is essential for the future studies to evaluate their hypothesis in a real urban context

Utilizing “Augmented Reality” Technology to Illustrate Residential Open Space Greenery

Displaying visually assistant for research in architecture is a necessity and importance of using new technologies in this matter is inevitable. One of the main assistant for them could be analyzing the effect of non-built environment on human behavior. Also some studies use VR to analyze human behavior but all of them are implemented in lab environment and until now no study tries to examine the human behavior in a real urban context. So this survey diverse underestimated wide range of new technologies with the three-dimensional structure, and finally "Augmented Reality" is chose. Due to the implementation of AR in open spaces, some successful methodologies have been tested for accuracy of registration and City 3D-AR is selected as a practical test. Therefore, environmental factors, according to the characteristics of desired visual have been simulated and virtually laid out in Open Space of Residential Complex. Simulated factors with information of their latitude and longitude, by an interface (API), entered in the Android version of this software. By putting the smartphone in a location and angle that environmental factors have been laid out, these factors have been integrated with its surroundings and through the vent of screen mobile phone is visible. The results of the practical test show that augmented reality technology is a convenient and ideal way to visual characteristics of environmental factors in residential complexes with unique privileges such as freedom of polled individuals; a clear transition of issues and maximum similarity of the area of covered the test

The Comparing of Psychological Status of Active and Inactive Relief Workers in Traffic Accident in Red Cross of Karaj Township in 1391

Background: Traffic accidents are major result of death and disability that their victims need relief Relief worker who do this, are at risk of psychological disorder because of Overwhelming accident and rescue work-related stress .It is necessary to be evaluated their psychological status for giving them psychological support. This study was conducted to compare the mental state in active and inactive relief workers in traffic accident in Karaj red cross in1391. Methods: This descriptive-analytic cross-sectional study was done among both of active and inactive relief worker in traffic accident in Karaj red cross. Data collection tool were demographic questionnaire and Standard questionnaire for measuring depression, anxiety and stress. Collected data was analysed by SPSS16. Results: Result showed that there is no significant difference between mean of depression, stress and anxiety score in both of them(P>0.05), also there is no significant relationship between psychological status with age, educational level, work backward and marital status but stress and marital status in inactive group was significant(P<0.05). Conclusion: It appears besides traffic accident relief worker, inactive relief worker need more attention and scale up psychological support programs and psychological disorder screening. Also it is proposed to do similar study in larger scale

Molecular dynamics simulations of mechanical behavior in nanoscale ceramic–metallic multilayer composites

The mechanical behavior of nanoscale ceramic–metallic (NbC/Nb) multilayer composites with different thickness ratios is investigated using molecular dynamics (MD) simulations. Based on the obtained stress–strain behavior and its dependence on temperature, strain rate, and loading path, the flow stress for the onset of plasticity is identified and modeled based on the nucleation theory, and the in-plane yield loci for different layer thicknesses are constructed. The results are used to establish the plastic flow potential for developing a continuum viscoplastic constitutive model for potential use in large-scale applications

Nanoparticle-Directed Metal–Organic Framework/Porous Organic Polymer Monolithic Supports for Flow-Based Applications

A two-step nanoparticle-directed route for the preparation of macroporous polymer monoliths for which the pore surface is covered with a metal–organic framework (MOF) coating has been developed to facilitate the use of MOFs in flow-based applications. The flow-through monolithic matrix was prepared in a column format from a polymerization mixture containing ZnO-nanoparticles. These nanoparticles embedded in the precursor monolith were converted to MOF coatings via the dissolution–precipitation equilibrium after filling the pores of the monolith with a solution of the organic linker. Pore surface coverage with the microporous zeolitic imidazolate framework ZIF-8 resulted in an increase in surface area from 72 to 273 m² g^–1. Monolithic polymer containing ZIF-8 coating was implemented as a microreactor catalyzing the Knoevenagel condensation reaction and also in extraction column format enabling the preconcentration of trace levels of toxic chlorophenols in environmental waters. Our approach can be readily adapted to other polymers and MOFs thus enabling development of systems for flow-based MOF applications