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A vectored thruster based on 3-RRRR parallel manipulator for small-size AUVs is designed to solve some drawbacks of conventional AUVs, which the control surfaces become ineffective at zero or slow forward speeds. Though this method, the thrust from duck propeller is controlled by the parallel manipulator. This approach has advantages of high stiffness, high mobile and large payload capacity. The parallel...
Ubiquitination, as a post-translational modification, is a crucial biological process presented in cell signaling, death and localization. Identification of ubiquitination protein is of fundamental importance for understanding molecular mechanisms in biological systems and diseases. Although high-throughput experimental studies using mass spectrometry have identified many ubiquitination proteins and...
Grey Wolf Optimizer (GWO) is a new meta-heuristic optimization. It is inspired by the unique predator strategy and organization system of grey wolves. Since the GWO algorithm is easy to fall into local optimum especially when it is used in the high-dimensional data, an improved GWO algorithm combined with Cuckoo Search (CS) is proposed in this paper. By introducing the global-search ability of CS...
Taking security management of Software-Defined Networking (SDN) into consideration, the identification of attacks due to the SDN-specific vulnerabilities is of great significance. Thus in this case, formalization of security attacks becomes essential in promoting the identification process of attacks. This paper then proposes an integrated approach of attack trees and extension innovation methods...
The development of MOOC brings opportunities and challenges to higher education. Based on the analysis of MOOC and traditional classroom teaching, a teaching mode based on MOOC for computer specialty is presented to improve the teacher-centered and rigid teaching mode in traditional education. The proposed teaching mode promotes the teaching reform in favor of the advantages of MOOC and classroom...
It is found that adding a constraint linear motion on the surface normal vector of current workpiece point can make robot set up an adaptive machining method. In this way, a constraint motion according with a machining process is realized in the finite space. The scientific problems are how to quantitatively describe the law of the special motion and simplify the multi-coupling relationship caused...
In recent years we are interested in several brand new fields of SAR radar such as multichannel High Resolution and Wide Swath (HRWS) SAR, multi-baseline interferometric SAR (InSAR), multi-subband SAR, PolSAR and PolInSAR and so on. We believe that these new theories of SAR radar are valuable for scientific applications and we try to develop a new experimental airborne SAR system which is able to...
Fault isolation is an essential step in multivariate statistical process monitoring, which discovers the cause of the detected fault. The common adopted techniques for fault isolation, such as contribution plots, reconstruction analysis, branch and bound, etc., often suffer from the problems of the smearing effect, insufficient historical fault data, and heavy computational burden. In this paper,...
The geological disasters of landslides induced by the Wenchuan earthquake are great in number so landslide disaster recognition and investigation must be conducted in the early stage of large construction planning in the disaster area. In recent years, the studies on image recognition focus on the extreme learning machine algorithm. Based on the preprocessing of remote sensing images, this paper conducts...
Orbital angular momentum (OAM) provides extra degrees of freedom to improve spectrum efficiency. However, the harsh requirement that transmit antenna(s) and receive antenna(s) need aligning throws out a great challenge to its application. To investigate the reason of performance degradation caused by misalignment, we first consider uniform circular array (UCA) based OAM system and set up two free...
Concolic execution has achieved great success in many binary analysis tasks. However, it is still not a primary option for industrial usage. A well-known reason is that concolic execution cannot scale up to large-size programs. Many research efforts have focused on improving its scalability. Nonetheless, we find that, even when processing small-size programs, concolic execution suffers a great deal...
This paper shows a disposable and inexpensive microcapsule array chip for on-site multi-target detection of ions in water. Eight pairs of indicator solutions, which are utilized to detect hydrogen ion (PH), lead ion, hexavalent chromium ion, fluorine ion, nitrite ion, nickel ion, copper ion and iron ion, are pre-sealed correspondently in the 4×4 microcapsule arrays with the use of ice-printing technique...
In this study, we propose an ultra-fast compliance current circuit for ReRAM electrical characterization. The circuit utilizes high speed components with low propagation delay and can reduce the overall response time to nanosecond level. Both simulated and measured results demonstrate that our proposed compliance current circuit possesses response time of ∼100ns, and thus can effectively reduce the...
In-app mobile advertising serves as a primary source of revenue for most free apps. Such apps are embedded with third-party SDKs for ads displaying and are monetized by user impressions. However, ad placement can sometimes spoil user experience, for example, by too much memory consumption and battery drainage, thus leading to app uninstalling and unfavorable user feedback. Therefore, ensuring user...
The sensor modeling problem of electrical capacitance tomography (ECT) is to establish the functional relationship between normalized capacitance values and normalized permittivity distributions. Three different sensor modeling methods are presented in this paper, that is, the sensitivity definition (SD)method, the electric field strength (EFS) method and the multiple linear regression (MLR) method...
As for the traditional Internet, network management usually did not evolve together with the newly introduced networking technology, and becomes a post-technology these days. In order to avoid patching Software-Defined Networking (SDN) later, an additional management plane may possibly be of great significance. Currently, both SDN management and non-SDN network management still coexist, and Simple...
Medical system based on image processing is playing an important role in clinical medicine today. However, the checking for label on powder medicine bottle is still being done manually by pharmacists in the injection pharmacy admixture preparation process. In this article, an automated method is proposed for checking the curved label of powder medicine bottle. The proposed method mainly consists of...
The data exchanging between the Programmable Logic Controllers (PLC) is usually completed via wired network in the Distributed Control System (DCS). The wireless communication ZigBee technology is introduced in the design of a new kind of PLC to overcome the limits of the communication cable. The PLC with Micro Controller Unit (MCU) as the core has strong reliability and control ability. The reliability,...
Software defined network with centralized control and flexibility of programming has been widely used. And congestion could occur easily in this kind of network owing to more elephant flows with increasing network requirements. To resolve the problem, this paper proposed an ant colony optimization algorithm based on flow scheduling system (TSACO). The system accurately detects elephant flows with...
Software Defined Networking is a novel network architecture, which separates data and control plane by OpenFlow. The feature of centralized control to acquire and allocate of global network resource. So, the link load-balancing of SDN is not as difficult as the traditional network. This paper proposes a link load-balancing algorithm based on Ant Colony Optimization(LLBACO). The algorithm uses the...
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