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In this work, microwave annealing is explored to tune the Schottky barrier height between NiSi and Si via boron and arsenic dopant segregation using silicide as diffusion source scheme. The microwave annealing is found to be able to obtain equivalent electron and hole Schottky barrier heights at significantly lower temperature (>100 °C) compared with conventional rapid thermal annealing. A plausible...
In Wireless sensor network, the coverage problem is a fundamental issue. The coverage holes are generally caused by both the random deployments of the sensor nodes and node failures, and are hardly avoided in sensor network. As one of the most health indicators of the sensor work, the coverage holes directly decide the quality of work of the sensor network. In this paper, we firstly proposed an active...
To increase the robustness of detection in intelligent video surveillance systems, homography has been widely used to fuse foreground regions projected from multiple camera views to a reference view. The objective of this paper is to detect multiple pedestrians and identify the false-positive detections, which occur due to the foreground intersections of non-corresponding objects, in the top view...
Searchable encryption is an important and challenging issue. It allows people to search on encrypted data. This is a very useful function when more and more people choose to host their data in the cloud and the cloud server is not fully trustable. Existing solutions for searchable encryption are only limited to some simple functions of search, such as boolean search or similarity search. In this paper,...
In this paper, a competitive three-phase buck-type PFC converter named SWISS Rectifier is comprehensively researched to inhibit mains current distortion. The control structure which would realize PFC function but also introduce harmonic components to mains current is illustrated and improved to achieve better performance. The origin of the mains current distortion occurred at the sector boundaries...
Multiple-copy routing is widely used in sparse vehicular ad hoc networks (VANETs). Recently, we proposed a novel architecture named software-defined vehicular networks (SDVNs) that can provide a global view of the whole network and centralized control over vehicular switches. However, existing multiple-copy routing protocols cannot utilize the benefits of SDVNs to improve routing efficiency. In this...
Time synchronization is the foundation for collaboration among sensor nodes. Acoustic communication and restricted mobility of sensor nodes are two unique characteristics of underwater sensor networks (UWSNs), negating the effect of terrestrial synchronization schemes. Existing UWSN time synchronization protocols focus on point to point synchronization, incompatible for large-scale networks. Moreover,...
IEEE 802.11 standard leaves client to determine AP association selection and initiate AP handoff. This often leads to sub-optimal results in enterprise WLAN with a large number of users. Therefore, network operators expects the ability to dominate AP association selection and AP handoff initiation so that better AP/client association can be achieved. In addition, AP handoff procedure involves time-consuming...
Extended-gate ion sensitive field-effect-transistor (EG-ISFET), which can be easily integrated in conventional large-scale integrated circuits, has recently disrupted the field of semiconductor genetics and gained accelerated momentum in more biosensing applications. Comprehensive understanding and modeling of the EG-ISFET which generally comprises of reference electrode, electrolyte, electrical double...
Spin-on-dopant and rapid thermal diffusion are used as the doping method for fabricating planar tunneling field effect transistor (TFET) in this paper to acquire abrupt doping profile and high surface doping concentration. Due to the heavy surface doping the on-current of TFET is enhanced. The ambipolar characteristics of TFET are also inhibited by reducing the drain doping concentration.
Physics-of-failure based reliability technology is a kind of technology which studies the failure regularities from the failure reasons and failure mechanisms of the product, and uses these mechanisms and regularities to predict, prevent, diagnose and repair those failures. This paper introduced the development of physics-of-failure based reliability technology from the demands of equipment development,...
With the rapid development of economy, service industry play a significant role in world economy. Technological innovation in service enterprises has become more and more important. In order to reasonably evaluate the radical technological innovation capability in service enterprises, this paper establishes an evaluation index system and sets up a mathematical model to evaluate the capability of radical...
Under transitional economy, the policy-making process of Chinese electricity firms is influenced by both group's strategies and exterior institutions. Based on institutional isomorphism, this paper discusses the impact of institution on this type of companies. According to the research, we found out, for the electricity firms in China, both field isomorphism p and group isomorphism will exert impact...
Constant current control is a difficult issue for LLC resonant converter due to its variable frequency operation. After detailed analysis on the short circuit operation of conventional LLC DC-DC converter, a novel current-limiting method with the help of diode clamping is proposed. Against the conventional wisdom, the switching frequency is reduced toward zero to control the output current under over-load...
Emerging economics are now paying more and more attention on entrepreneurship. Some institutional entrepreneurs in these countries are trying to seek the occurring opportunity. Debuting on NEEQ in China is a good example of this. Using the data from the annual report of the listed firms in NEEQ, we investigate the relation between political connection, government subsidy, risk taking (using R&D...
The paper has explored the relationships of corporate values and stakeholder orientation as well as social performance from institutional perspective. Based on the legitimacy management model, we hypothesis and testify the efficient scope of the effect of corporate values on stakeholder orientation as well as social performance from legitimacy management process, and certified the mechanism from the...
Unmanned Aerial Vehicles (UAVs) have emerged as promising relay platforms to improve the connectivity of ground Mobile Ad Hoc Networks (MANETs). Due to the relatively high cost of UAVs, a lot of efforts have been made to optimize the deployment of UAVs so that the number of UAVs needed in maintaining the connectivity of ground nodes can be minimized. However, existing work on optimization of UAVs'...
UAV has been a popular piece of equipment both in military and civilian applications. Groups of UAVs can form an UAV network and accomplish complicated missions such as rescue, searching, patrolling and mapping. One of the most active areas of research in UAV networks is that of area coverage problem which is usually defined as a problem of how well the UAV networks are able to monitor the given space,...
Currently, enterprise WLAN is facing rapid growth of user scale and traffic load, as well as constantly emerging new features. However, traditional enterprise WLAN architecture suffers from poor flexibility and the lack of coordination between wireless access points (APs) and wired backbone. Inspired by the emerging idea of Software-Defined Networking (SDN), we proposed SDWLAN, an alternative architecture...
Based on the inertial navigation system of gyro accelerometer “running” accident, DFTA method, through the analysis of the model is established in this paper, static subtree and dynamic subtree analysis for gyro accelerometer “embrace” the accident model and probability of accident. The results found in gyro accelerometer “embrace” the main cause of the accident, used to guide practice, reduce the...
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