Earticle

In this hi-tech world, privacy is most important issue. Has anyone ever imagined why this problem arises? In the field of correspondence media or portable correspondence, web association is a spine of data and correspondence innovation which gives numerous administrations to client to these applications we need quick and headway of Internet integration innovation and vast range of channels[1]. Internet access speed or whether it is about downloading files, internet speed is big issue. Why not take a step further to resolve this problem? The answer to our problems is 'li-fi'. Have you ever wondered a city where internet access is wireless and without any interruption? Like other queries science has an answer to these questions also which is LIFI. LIFI is the new future. From sharing data to accessing it, can be done for laptops, smart phones, and tablets through transmitting light from LED bulb installed within the room. And for the security, if you can't see the light, you can't access the data[2].

Smoke simulation is an interesting topic in simulation fluid dynamics and graphics area. Stack Effect Fire model was happened in fire of High Rise building. Simulation this fire model and smoke scene is one of the most challenging tasks in fluid dynamics of computer graphics area. In this paper proposed Smoke simulation rendering is based on game engine of particle system. But common game engine don’t have stack effect model and compute coordinate position algorithm. Recently proposed method based on FDS’s (Fire Dynamic Simulation) result Excel file which improves Unity 3D game engine for stake effective fire model and smoke boundaries. Using Excel file coordinates to improve Unity 3D game engine particle system, and changes the original game engine particle system, over the coordinates of particles moving location, boundary and fire model stake effect look like real world fire model. Recently game engine computer graphic researcher usually control computing resources focused on smoke visualization skip fire effect and physically problem. In this paper, need focused on smoke location boundary and fire model stake effect. The proposed method can change smoke and fire model of stack effect and particles more accurately and efficiently than other, rendering is implemented by making smoke particles and physically effect. After putting the coordinate form FDS into Unity3D game engine Experiment performance result shows particles more look like reality, and gives neutrality and reality to user's view. This algorithm problem is from simulation high rise building mesh with loading time need more computer resource, and need to change some effect in Unity 3D game asset.

In the era of aging society in China, focusing on the issue that it is difficult for elderly people to operate a variety of computing devices with the physiological and psychological changes brought by the aging, a research for ergonomics of interactive devices was put forward for elderly user groups. The research studied the performance of elderly people using the mouse, stylus and touchscreen to perform two-dimensional pointing tasks, compared with younger people, in the computer user interface by controlled experiments, measured the movement time and hit accuracy, and also investigated the subjective experience when they used the three input devices for completing two-dimensional pointing tasks. Experimental data analysis showed that elderly people spend more time than younger people to complete the pointing tasks with any of the three input devices, Fitts' law still hold when the elderly people used mouse, stylus and touchscreen to perform the two-dimensional pointing tasks, and the use of touchscreen can achieve higher performance with the target size should not less than 80 pixels (about 11.2 mm) for both elderly and younger people. Elderly people can benefit more from the touchscreen than younger people.

There has been a surge in the intelligent content services in the broadcasting and communication sectors as the convergence between the contents of various industries and highly-advanced IT is gathering momentum. As a result, the users can conveniently save, distribute, and disseminate the converged contents using the smart devices that have independent platform. However, there is technical limit in achieving the continuous replay after freely converting the single content via the independent devices. Furthermore, children and adolescents are easily exposed to violent and explicit contents amid the growing distribution of smart devices. In this paper, we suggests the OSMU (One-Source Multi-Use) management framework that ensures the fast and convenient use of one single content via the heterogeneous device and the integrated content management that enables the distribution of contents by grade.

Unicode 6.1 (2012) had encoded more than 74,000 Han characters. This great repertory could solve the problem of unencoded Han characters to a significant extent. However, most information systems today still only support input and display of the first 20,902 encoded Han characters in Unicode 1.0 (1991). Even in latest systems, designed to support 32-bit Unicode and with suitable fonts installed, it is not easy to use these newly encoded Han characters. We note that many of these newly encoded Han characters are rarely used in users’ everyday life. An ordinary user may have confusions of their glyph shapes, pronunciations, meanings, and usages. IMEs (input method editors) for Han characters usually require users to have good knowledge of wanted Han characters. It is not unusual users try but fail to input unfamiliar Han characters. In this paper, we present an auxiliary Unicode Han character lookup service by radicals. One can use any Han character IME to key in one or more radicals to look up a wanted Han character. Every Unicode Han character is decomposed as a glyph expression of radicals. The similarity between the glyph expression and user input is estimated by a derived edit distance algorithm. The most similar Unicode Han characters are returned. As a result, the system provides users a convenient way to look up unfamiliar Unicode Han characters.

Home automation is a wide and varied field that involves devices as small as temperature, light and motion sensor, and as powerful as modern home appliances. In today’s world technology is available for home automation but these technologies are incompatible with each other and addresses only communication and physical media, the main objective of this work is to facilitate the user to control appliances by two ways one is remotely via voice command, second is using remote control to control the appliances which is also an override control.

The Smart Cross Platform is a virtual machine based solution that supports various programming languages and platforms, and its aims are to support programming languages like C++, Java and Objective-C and smart phone platforms such as Android and iOS. Various contents that developed by supported language on the Smart Cross Platform can be execute on Android and iOS platforms at no additional cost, because it has the platform independent characteristic by using SIL(Smart Intermediate Language) as an intermediate language. In this paper, we will introduce a Java compiler for the Smart Cross Platform to support Java contents. Proposed compiler translates given Java programs into stack based intermediate SIL codes to execute on the SVM(Smart Virtual Machine). Thus, existing JVM’s contents can be easily ported and executed on the Android or iOS with SVM.

The process of evaluating the accessibility to manipulation in a built environment is linked to the determination of accessibility in its overall meaning (access, move, use). This amounts to evaluate all the possible movements of an articulated structure taking into account the constraints due to the environment and the mobility device (trolley or wheelchair). It is important to ask the question: how the environment is accessible? Given these assumptions, the process of evaluating the accessibility is formulated as a problem of inverse kinematics of an articulated structure (mobility device and user) by verifying that the end effector (the hand) can reach objects in the environment taking into account the constraints related to the degree of disability and those related to the nature of the environment. The approach is demonstrated on simulated environments using the techniques of virtual reality.

Within planning process, landscape visibility assessment has advantages of identifying landscape character and changes. As a planning tool, planners and other professionals are able to exam various planning scenarios effectively. However, current visibility analysis maps have been produced under raster driven information, which lacks in detail and its accuracy. In response of current phenomena of production of landscape visibility analysis and adaptation within planning process, the research aimed to develop an advanced visibility analysis programme based on vector data (NURBS) in order to improve accuracy of the process and result. In order to rectify of the new application, a residential development in Seoul has been chosen as case study. With newly produced visibility analysis produced from VE3D, the study analyses terrain, high-rise building blocks and any built up structures in 3D forms. After case study, VE3D which was developed for visibility analysis from vector-based datasets was able to illustrate high level of detail in visibility identification better than using conventional Arcview 3.3 programme. Moreover, VE3D can produce a visibility analysis in reflecting complicated structures such as flyovers and high-rise tower blocks. The research also suggests that VE3D is able to contribute to in-depth and credible visibility analysis and this can be achieved by further research on application within various terrains and built up structures.

The ordinary gas sensor has low material utilization, high power consumption, temperature distribution uneven and poor consistency problems. Based on film processing technology, this paper designs a new structure of micro gas sensor. Triangle type design is first adopted in the structure, with platinum as the electrode material, ceramics substrate. Using ANSYS Workbench to analysis different size electrode and substrate that including the temperature field, stress field and the optimization design for substrate and electrode, the sensor can be uniform temperature distribution, stress of small and the effective control of power consumption, it is beneficial to improve the overall performance of the sensor. In addition, the sensor is tested to verify the accuracy of the finite element simulation.