Earticle

This study was conducted to apply a phase change material (PCM) to the inner skin part of a double skin facade to positively utilize natural solar heat so that a double skin facade may not only counteract external environmental changes but also positively introduce external natural solar energy, highlighting the advantages of a double skin facade. However, PCM is currently used by impregnating to a wall or a board of a building. Studies on the determination of an appropriate PCM temperature according to the applications are only conducted with respect to a wall or a board. Applying a PCM to an inner part of a double skin facade system involves variables such as impregnation method and appropriate temperature. These are the properties of a PCM, which are important variables directly affecting the room temperature depending on the mixing ratios and applications targets. This study was conducted with respect to window surfaces having a direct impact on the inside and the outside of a building to select a double skin facade system having excellent energy-saving performance and determine a PCM temperature which is applicable to a double skin facade, verifying the indoor energy-saving effect depending on the application of a PCM to the inner part of a double skin facade.

Some studies have shown that the attitude and intention of using mobile LBS is strongly influenced by the privacy factor. Since LBS bears prominent privacy attribute, our study selects the aggregation form based on Microblog content in the LBS of SinaMicroblog, namely, LBS Microblog, asthe object of study, acquires an actual Microblog user data sample of over 30,000 items, with over 8.64 million Microblog postings and 20 million Microblog re-postings of these users, conducts a contrastive research on the adoption behavior in LBS of users at Hub nodes and common nodes in social network through relative analysis, and discusses the diffusion rule of LBS through BASS model. The study finds that the structure attribute of users in social network has strong influence on the adoption rule of LBS; the adoption of different types of LBS by users is obviously in consistency; LBS is remarkably influenced by emergencies related to privacy.

Cloud computing that provides computational resource, platform and software as services is operated in cluster that is comprised of hundreds or thousands of servers. Thus, cloud computing providers may use various policies such as complex resource provisioning, allocation, configuration, and so on, to efficiently manage huge resources. In this environment, it is difficult to customize circumstance and to test and evaluate a hypothesis independently. To overcome these limitations, we provide SimCloudIS: simulator for cloud computing infrastructure and service. The SimCloudIS provides cloud system components such as the datacenter, host, VM, application, network and scheduling polices that are extendable and managed in independent layers. The network component supports packet based network communication which is based on the real network model, thereby facilitating simulation of internet based services. For evaluation, SimCloudIS provides a monitor that observes the status of all components and records them. The usefulness of SimCloudIS is demonstrated by involving a case study for dynamic allocation and relocation of VMs in a cloud environment and analyzing the result.

In order to optimize the technological process of the water distributor and do further sturdy about the interference pattern of the injection layers in China, we needs reasonable and reliable methods to obtain the dynamic parameters of water injection layers. In this paper, a novel DC power line carrier technology based on the Orthogonal Frequency Division Multiplexing (OFDM) technology is proposed, aiming to save the difficult communication problem between the underground and the surface. Using the signals on the power line, it includes the modulation and demodulation techniques and filter encoding technology to transmit the data. Experimental results show that this new communication technology has high noise resistance and low error rate, provides reliable technology support and data to optimize the injection process and build the model of the dynamic parameters change among all the layers.

In ubiquitous computing environments, users usually compose several services to achieve their goals. The service composition method of this paper is based on WSUN(Web Services on Universal Networks). WSUN approach supports dynamic service composition which takes account of the dynamic factors of ubiquitous environments. In service composition, an operation of a service should be substituted by another operation when the operation is not available. The substitutable operation should support same functionality of unavailable operation. Moreover, it should be able to communicate with pre operation and post operation. The service composition mechanism of WSUN considers the functional similarity between unavailable operations and substitutable operation, but it does not take account of I/O message structures and parameter types of operations. In order to enhance WSUN service substitution method, we use SAWSDL(Semantic Annotation WSDL for XML Schema), which is Semantic Web Services technique. SAWSDL provides two construct: modelReference and schemaMapping. A modelReference specifies the association between a WSDL or XML Schema component and a concept in some semantic data. Semantic annotations using modelReference help to discover substitutable operations. In addition, a schemaMapping solves the heterogeneity of I/O message structures and parameter types of operations. Consequently, even if the operation, which has same functionality of unavailable operation, has different I/O message structures and parameter types of unavailable operation. In order to recommend the operation has good quality, we define the quality of operation. It is a criteria that user can choose the best operation. In addition, we take a user weight for accommodation of user’s requirements. The recommendation system prioritizes operation through calculating quality of operation based on user weight value. Therefore, operation by operation’s priority recommends users. Our system supports substitutable operation discovery mechanism using Semantic Web Services technique, and substitutable operations list to satisfy user’s requirement recommend in ubiquitous environment. Therefore, user can discover substitutable operation in substitution situation. In addition, substitutable operations to fit user requirement recommend user according to weight value from user.

Because the power systemload the randomness of the nature, power transmission of AC induction system has the low efficiency. In order to improve the transmission efficiency，the transmission efficiency influenced factors of the system is analyzed. Based on the current source power transfer system, DC/DC circuit for dynamic adjustment method is proposed. The method ensures that the transmission efficiency is the biggest.

Heating saving energy plays a very significant role in the energy saving industry. CANbus is a modern system in reliability improvement design concept which shows the transmission distance is longer than ordinary methods, and it can hang node on the optional position in availability distance. The nodes are linked in parallel, and not interfere with each other. By using the CANbus technology, the relay output module with a radiator, thermocouple acquisition module is linkedto the temperature sensor. The temperature sensor collects information from the outside system. Relay output module controls heating valve based on the temperature information, and make temperature of the room controlled automatically. Four energy-saving modes are developed in this project. Testing result reflects that the system designed under the new methodology offers outstanding results in energy-saving.

IP based network public address (PA) is an audio management system that provides high flexibility in reconfiguration, system expansion, and requires much simplified cabling structure. This translates to significant cost saving in installation cost, both labour and material, as it requires less cabling, reduced cable size, conduit size, and trunking size. The network PA works very much similarly to computer networks where packets of data are transmitted from one node to another with each of them having a unique IP address in the network system. The nodes will then only pick up the packets that solely addressed to them. The network PA can also be integrated with other building services or subsystems that are TCP/IP compliant such as the fire alarm management system, CCTV system, and building management system to provide instantaneous voice assisted response and feedback from each system.

This paper presents a new Discriminative Random Fields (DRFs) framework. Based on the DRFs framework proposed by Kumar and Hebert, the following improvements have been conducted. Firstly, the interaction potential and the associated potential model are simplified. Secondly, we reduce the dimension of the multi-scale features, re-definedimension of the single-scale feature, and increase the color feature of Building. Thirdly,the quasi-Newton method with linear search and gradient descent method are adopted to solve parameters, whichget a simple model and achieve good performance. Finally, the partition function of the DRF is eliminatedby using Pseudo-likelihood method for parameter learning. The simulation results show thatthe proposed method’s false positive rate is lower than the method from Kumar and Hebert, while the correct rate and detection ratearehigher than their experimental effects after these improvements.

This study is about the new expressive techniques for promotional videos for culture contents and aims to propose a new design model for making effective promotional videos using augmented reality technology and E-museum concepts. Augmented reality is one of the up-rising intelligent information technology, but has been barely used for promotional videos. However the technology enables the interaction between physical objects in the real world and virtual image though digital devices. Augmented reality opens the door for connecting real and virtual world, and invites humans to the virtual environment. There are growing numbers attempt to move off-line culture contents into on-line space. Considering the connection between culture contents and digital environment, more studies about the convergence is necessary in the cultural-art industry, especially for marketing business. Therefore, this study aims to take a brief look at augmented reality technology, and proposes the new experimental model and expressive techniques for cultural-art organizations’ promotional video, which set the experiential learning environment, and enables consumers to take contents actively.

In the past years, Internet of Things (IoT) has been focused and fused with wireless sensor node such as RFID, NFC tag and small sensor nodes, especially for hospital environment with mobile device. Due to the weakness characteristics of wireless signals, unauthorized person can access easier to hospital networks in wireless part than wired network systems. This may induced in several security problems. Therefore, a lot of threats, attacks and vulnerability are occurred in wireless surroundings because of their limited resources such as small memory and low computation capability in wireless sensor network. RFID is often utilized as a prerequisite for the IoT in healthcare system. We surveyed and analyzed the technologies and characteristics of RFID and its application based on IoT.

The system of smart home can provide a kind of easier, ordered and effective life style to human, and must be the development tendency for future inhabitancy mode. Therefore, a smart home system solution is proposed in this paper. Firstly, this paper analyzes the characteristics of ZigBee technology, device types, network topologies and ZigBee protocol specification. Secondly, a design scheme of smart home system based on ZigBee technology is put forward and discussed. Then, the hardware design of ZigBee nodes based on CC2530 chip is given in detail. And, embedded programming software in each ZigBee node and user management platform software are implemented respectively using IAR and Microsoft Visual C++ 6.0. Finally, system test results show that the smart home system implemented above can be served as practical application reliably.

As one kind of high quantity standardized commodities, the fruit juice product is an essential part to our daily life and overall economy. Therefore, it is necessary and important to design an efficient juicing and filling production line. According to deficiencies of traditional design methods, we propose a new design method by introducing virtual design technologies to develop a hybrid simulation system for juicing and filling production line, based on modeling software SolidWorks, virtual reality software EON Studio and application development software C++ Builder. We also describe our design method from aspects of process design and layout design, scene modeling, model import and route configuration, and interactive simulation control. Besides, we compare our design method with one traditional design method. Results show that our method can not only shorten effectively the design period but also improve greatly the design quality of the juicing and filling production line.

As competition among the corporations in the service industry is growing fiercer, efficient management of customer feedback is necessary in order to grasp customer needs, which change day by day. Recently the corporations have been trying to obtain customer feedback using Big Data from social media, which contains the diverse voices of the customers. Therefore, the corporations focus their attention on how to analyze and utilize the Big Data, which is a key resource of the mobile smart revolution. Firstly, this paper proposes a profiling method that can effectively analyze company reputation in the service industry. To that purpose, the proposed system extracts and lists a set of specialized target sites for each service. This paper proposes a methodology which detects issues by analyzing diverse data patterns as a method for analyzing the Big Data of social media. The Issue-detected Methodology defines the independent variables as contents and writers which affect the spread of negative public opinions, and the dependent variables as average reaching time and speed of the issues. The influence of the negative public opinions is detected concerning issues based on the numbers of tweets and re-tweets. . The service providing corporations may prepare appropriate measures by the issue detection prior to spread of negative public opinions.

Re-creation of the land use transformation at different periods in time is valuable for revealing how policy change influence ancient Fu Liang kiln. To date, there has been little focused on the model of historical Fu Liang kiln change. On the contrary, current research has emphasized that the transformation process of kiln has been described by literal presentation. However, Dynamical and visual model can provide insights into kiln change processes and are valuable for land use transformation. For this reason, we create virtual maps of ancient Fu Liang area and propose such constructs to unambiguously denote a novel integration model. In this model, ancient virtual maps are created by ARCGIS10.0 software and PCI9.0 software, land use changes are performed through cellular automata, decision processes are controlled beyond the multi- agent, spatial optimization is represented by particle swarm optimization. We use the simulation approach to recreate the kiln transformation of Fu Liang, Jiang Xi, annually from 1271 to 1554. The simulation of the model is of richer changing hierarchy and can better reflect the whole process from the first to the last firing, and can be used to preferable create dynamic model and theory. Additionally, the model can better reflect the interaction of the political situation, institutions and the natural environment.

A simple, small, compact, low cost, and practical antenna for 2.4 GHz applications is proposed in this paper. A detailed investigation on miniaturized microstrip planar antenna design using a combination of proposed shorted patch and meandering method are presented. All design and simulations are done using Computer Simulation Studio (CST) software. For accuracy reasons, verification has been done, all the designs were fabricated, and measurements on return loss and impedance bandwidth were implemented by using RF Analyzer.

Recently, the development of Machine to Machine (M2M) communication has been largely accomplished in a variety of fields including smart home. In M2M communication, the role of sensor node is only limited to gather data and send them to upper application layers. In this research, the limited role of the sensor node in traditional M2M communication is improved in order for the sensor node to make inference based on the sensor data. If the sensor node can make inference, it is possible to provide basic context-aware services within sensor node level. Therefore, in this paper, implementation of rule-based inference system on microcontroller for smart home is proposed.

With the rapid development of wireless communication and embedded system, wireless positioning systems are paid more and more attention to. Radio Frequency Identification (RFID) localization system is getting more important, due to its own advantages, such as no contact, non-line-of-sight nature, promising transmission range and cost-effectiveness. To improve the accuracy of active RFID indoor location system, some traditional RFID indoor localization systems were studied, such as LANDMARC. On this basis, an adaptive self-correction location algorithm was presented, which uses a positioning correction value to correct the positioning result. N minimum errors and position results are obtained by using adaptive K-nearest neighbor algorithm N times. The positioning correction value calculated with N minimum errors in weighted way. The sum of the positioning average value and the positioning correction value would be the final positioning results. Experimental results show that compared with adaptive K-nearest neighbor algorithm and error self-correction algorithm, the proposed method provides a higher accuracy and stability.

These days, new advances and stages are developing and evolving continually, which suggests a high exertion for creating of complex frameworks, for example, E-learning stage. This circumstance produces distinctive issues identified with compactness, reusability, versatility, incorporation and interoperability. The Object Management Group (OMG) proposes the Model Driven Architecture (MDA), which enhances mobility of uses by permitting the same model to be acknowledged on various stages. Such MDA characterizes a structural engineering focused around platform independent models (PIM) and platform specific models (PSM). The part approach means to outline and create frameworks from pre-assembled segments, predesigned and pretested, to be reused in different applications, which would encourage application's support and development, would advance flexibility and configurability with a specific end goal to create new peculiarities. In this work we introduce LMSGENERATOR, a multi-target Learning administration framework generator with a model-driven procedure focused around MDA methodology coupled with part approach. Taking into account generative programming, from client determinations (abstract models) and the fancied advances, programming blocks will be created and amassed to deliver a complete arrangement adjusted to zone and clients' necessities. This paper concentrates on the change guidelines actualized in the LMSGENERATOR centers .Also; it introduces a careful investigation to delineate this proposal.

One of the main requirements that need to be enhanced for smart home networking is mobility. The capabilities of smart homes could be enormously enhanced if equipped with mobility allowing the users an autonomous control over the home devices and equipment. This paper presents a discussion of the concepts of proxy mobile IPv6 applied to smart home networks in order to spontaneously control the home devices and equipment while the home owner is mobile. An overview of the concepts of smart homes and proxy mobile IPv6 are also presented.