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In SSD-based storage systems, persistent data are stored in the NAND Flash and however manipulated in DRAM, causing the decoupled inefficiency. The data being closer to the processors are much easier to be lost due to the volatile property of DRAM, leading to serious data reliability problems. In the meantime, existing SSD technology exploits the properties of NAND Flash and leverages NAND Flash +...
Traditional Anti-virus technology is primarily based on static analysis and dynamic monitoring. However, both technologies are heavily depended on application files, which increase the risk of being attacked, wasting of time and network bandwidth. In this study, we propose a new graph-based method, through which we can preliminary detect malicious URL without application file. First, the relationship...
Enhancing brand awareness through online social networks is increasingly pivotal to business success. This paper is concerned with a hybrid paradigm for modeling, simulation and analysis of brand virality in social media. In particular, mathematical models and graphical animation are proposed and formulated to represent the spread and viral process of a brand over social Web and mobile networks. Simulation...
This paper introduces a new bio-inspired wire-driven robotic fish, called the Robot Shark. Different from the existing robotic fishes, it can sway its caudal fin to establish forward motion as well as ascending motion. First, the sway motion model is derived and computer simulations are conducted. Next, a prototype was built and a number of experiments were carried out to validate the simulation results...
With the intensifying requirements of intelligent software, self-healing system becomes increasingly imperative. Such systems attempt to "heal" themselves in the sense of recovering from faults. The system is usually represented at a higher-level of abstraction than a program, such as Extended Finite State Machines (EFSMs), in which a fault could be regarded as a restricted operational environment...
Snake-like flexible manipulators (FMs) are very important in minimally invasive surgery (MIS). However, existing solutions lack adequate dexterity as they can only control either the angulation or the length of the bending section. Moreover they cannot “follow the leader”, which is critical in neurosurgeries. This paper intends to provide a design to solve such problems. A novel tele-operated tendon-driven...
In order to accurately predict general aviation aircraft path, this paper puts forward the basic flight model prediction method based on data fusion. The 4D trajectory track is decomposed into horizontal and vertical section. The horizontal trajectory can accurately show the plane turning of the flight details. The vertical section can accurately express the change of aircraft flight altitude and...
The vertical axis wind turbine has advantages on the ordinary areas, which lead to a fast development in recent years. But its wind turbine has various forms and the flow field has complex environment, so the power generation law is not easy to control and the performance of wind turbines usually is not conducive to further study. In order to solve this problem, a new method is proposed, which simulates...
Two novel human infectious coronaviruses, severe acute respiratory syndrome coronavirus (SARS‐CoV) and Middle East respiratory syndrome coronavirus (MERS‐CoV), have caused pandemics in the 21st century, and it is believed that both viruses originated from bats. During the last 10 years, studies involving surveillance, genomics, classification, receptor usage, and interspecies transmission of bat coronaviruses...
Density is one of the major design factors of magnetic random access memory (MRAM). Very recently, a tri-level cell (TLC) structure was proposed to enhance the storage density of MRAM. In this work, we propose a new self-reference sensing scheme for the TLC MRAM cell based on its unique property called state ordering. Simulation results show that compared to conventional design, our proposed self-reference...
A novel acoustic emission location approach was presented for large anisotropic composite plates with unknown lay-up and wave velocity. The proposed algorithm was based on the differences of acoustic emission signals measured by four piezoelectric sensors surface-bonded in a small area. Wavelet scale spectrum combined with cubic splines interpolation was employed to obtain the time of arrivals (TOA)...
As process technology continues scaling down, the memory barrier becomes more severe. Thus, spiking neuromorphic computing that can significantly enhance computing and communication efficiencies has been widely studied. Both conventional CMOS technology and emerging devices have been used in hardware implementation of spiking neuromorphic computing. Particularly, the memristor technology that can...
In this paper, optimal remote control strategies to a novel master-slave flexible manipulator (FM) are presented. The system contains a constrained tendon-driven serpentine manipulator (CTSM), the base platform, a micro controller, a PC and the Novint Falcon haptic input device. The bending of the CTSM backbone is controlled by the tendons and the length of the bending section is controlled by a constraint...
Checking program entities for finding faults is extremely tedious for developers. Fault localization techniques are designed to give a rank list of the probability that program entities incur faults to assist developers to locate faults. Mutation-based fault localization is a recently proposed fault localization approach via mutation analysis. With improved effectiveness, the mutation-based fault...
Most of the recent complex event semantics is based on regular expressions, extended with additional filters such as window constraints. We observe that many applications today require parallel (interleaving) event patterns. Moreover, we observe that this matching needs to be approximate in terms of event orders and missing events. We first propose the query semantics. Then we devise a foundation...
Neuromorphic systems recently gained increasing attention for their high computation efficiency. Many designs have been proposed and realized with traditional CMOS technology or emerging devices. In this work, we proposed a spiking neuromorphic design built on resistive crossbar structures and implemented with IBM 130nm technology. Our design adopts a rate coding scheme where pre- and post-neuron...
In this paper, main different grid-connected photovoltaic (PV) standard systems, included IEC system, western country system, American system and China system have been summarized, analyzed and compared. Based on comparison between different standard systems, relative merits, existing difference, and reasons of difference have been analyzed in gird-connected PV standard system. Furthermore, combined...
Cough detection and assessment have crucial clinical value for respiratory diseases. Subjective assessments are widely adopted in clinical measurement nowadays, but they are neither accurate nor reliable. An automatic and objective system for cough assessment is strongly expected. Automatic cough detection from audio signal has been studied by peer works. But they are still facing some difficulties...
Data missing is a kind of inevitable phenomenon in gene expression microarray experiments due to many factors. The integrity of the data plays a key role in the performance of the downstream analysis. Therefore, many developments have been achieved in the research on estimating missing values. However, when it comes to missing data with a large missing rate, most current estimation methods cannot...
Chloroplasts are organelles in most green plant and some algal cells. Identifying protein subchloroplast localization in chloroplast organelle is very helpful for understanding the function of chloroplast proteins. There have existed a few computational prediction methods for protein subchloroplast localization. However, these existing works have ignored proteins with multiple subchloroplast locations...
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