Public untargeted metabolomics data is a growing resource for metabolite and phenotype discovery; however, accessing and utilizing these data across repositories pose significant challenges. Therefore, here we develop...
Public untargeted metabolomics data is a growing resource for metabolite and phenotype discovery; however, accessing and utilizing these data across repositories pose significant challenges. Therefore, here we develop pan-repository universal identifiers and harmonized cross-repository metadata. This ecosystem facilitates discovery by integrating diverse data sources from public repositories including MetaboLights, Metabolomics Workbench, and GNPS/MassIVE. Our approach simplified data handling and unlocks previously inaccessible reanalysis workflows, fostering unmatched research opportunities.
With the development of image processing technology and the pervasiveness of mobile devices, face recognition, which can be used to offer convenient and efficient individual authentication service, has attracted consi...
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With the development of image processing technology and the pervasiveness of mobile devices, face recognition, which can be used to offer convenient and efficient individual authentication service, has attracted considerable interest in recent years. However, people's concern about their face data being leaked during the face recognition process impedes the flourish of face recognition. To address this problem, we present a novel privacy-preserving online face recognition scheme over encrypted outsourced data, named EPFR. With EPFR, a user can achieve secure, accurate and efficient authentication service without disclosing her/his face data. Specifically, an improved homomorphic encryption technology is introduced to provide an efficient online face recognition service based on the Eigenface algorithm. Through extensive analysis, we show that users' face data are kept confidential during the online face recognition process. In addition, we implement the scheme with a real face database, and simulation results demonstrate that the scheme can be used to provide efficient and accurate online face recognition service.
Project Management is management processes that cover all the activities within a project. Its effectiveness is known throughout the information technology industry. However, the implementation of project management s...
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ISBN:
(纸本)9789881404749
Project Management is management processes that cover all the activities within a project. Its effectiveness is known throughout the information technology industry. However, the implementation of project management standards is still rarely seen, especially in higher learning institute. We intend to identify the application of project management standards leads to software project success in the higher learning institute. We conducted a survey questionnaire to collect our data. The respondents are from higher learning institute who involved in information technology field. As a conclusion, although part of the respondents does not use any standards, majority of the respondents agreed that activities within project management contribute to project success.
In this paper, a direct numerical simulation technique, the Finite Element Fictitious Boundary Method (FBM), is used to simulate fluid–solid two-phase flows of different general shaped particles. The momentum interac...
In this paper, a direct numerical simulation technique, the Finite Element Fictitious Boundary Method (FBM), is used to simulate fluid–solid two-phase flows of different general shaped particles. The momentum interactions between solid and fluid phases are handled by using the FBM. The continuity and momentum equations are solved on a fixed Eulerian grid that is independent of flow features by using a discrete projection scheme inside a multi-grid finite element approach. A detailed description is presented for the geometric representation and modeling of two-dimensional particles of different general shapes, i.e., circular, elliptical, square, rectangular, triangular, and pentagonal shapes inside the fluid. We discussed the effects of particle shapes and the influences on the settling behavior of the particles. A comparison of the settling trajectories of the particles of the same mass but with different shapes is presented. Moreover, depending upon the particle’s shape, some interesting facts are discovered, which have a great influence on the particles’ trajectory and settling velocity. Some very important correlations between the drag force coefficient and particle’s Reynolds numbers with different density ratios of particles are obtained. Furthermore, we also studied the settling behavior of elliptical and rectangular particles with different axis ratios and a boomerang particle with different concave *** authors of the article agree to the retraction of the article effective AUGUST 20, 2021.
Recent advances in the spintronic design and fabrication techniques have led to the development of spin torque diodes having a perpendicular magnetic anisotropy (STD-PMA) in their free layer. Such STD-PMAs can act as ...
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Recent advances in the spintronic design and fabrication techniques have led to the development of spin torque diodes having a perpendicular magnetic anisotropy (STD-PMA) in their free layer. Such STD-PMAs can act as energy harvesters of ambient microwave radiation [1], and when driven with a dc bias current, can operate as microwave generators [2]. The analytical formalism [3] has shown that STD-PMAs have a number of interesting properties. In particular: (i) in the presence of an external microwave current they can produce a rectified dc voltage that is linearly proportional to the external microwave frequency, and independent of the input power; (ii) the STD-PMA can perform a signal rectification without an independent power supply, drawing power entirely from the input signal; (iii) in contrast with the traditional spin torque diodes, the STD-PMA do not require an external bias magnetic field, and therefore can be easily integrated with CMOS and other microelectronic systems; (iv) the power threshold of operation of STD-PMA is rather low (several nanowatts), and thus, they can be used in applications where non-spintronic (e.g. Schottky-diode-based) devices fail; (v) above a particular threshold frequency, the STD-PMA does not produce a dc voltage, thus acting as a natural lowpass filter. Here, we propose a novel application for an STD-PMA: this device can perform passive demodulation for low-power frequency-modulated (FM) signals. To demonstrate this effect we performed a numerical simulation for an STD-PMA under the action of an external FM signal. The magnetization dynamics of the STD-PMA free layer, which performs the signal demodulation, was modeled using the Landau-Lifshift-Gilbert-Slonczewski equation in a macrospin approximation. We chose the following typical parameters of the system. We used a 1.65 nm-thick circular free layer having a radius of 50 nm, and made of Co 20 Fe 60 B 20 . With this configuration, the effective field of the 1 st order PMA was
Nowadays, the movement control is troublesome for the expanding traffic. The quick addition in vehicular excursions without relating growing in street space is achieving generous blockage in various parts. This makes ...
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Nowadays, the movement control is troublesome for the expanding traffic. The quick addition in vehicular excursions without relating growing in street space is achieving generous blockage in various parts. This makes trouble for the emergency vehicles such as ambulance, fire emergency and VIP vehicles to travel through the congested traffic. By analyzing different proposed systems, another arrangement can be actualized by making the traffic lights somewhat wise. To this issue, a framework utilizing computational intelligence is proposed to assign clear path for the emergency vehicles with the utilization of RF transponder and microcontroller. The significant part of this work is focused on reducing the inertness of the emergency vehicles with least interruption to customary traffic stream.
The low resolution iris images in non-cooperative environment has resultant in failure to determine the eye center, limbic and pupillary boundary of the iris segmentation. Hence, a combination with periocular area is ...
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ISBN:
(纸本)9781538663288;9781538663271
The low resolution iris images in non-cooperative environment has resultant in failure to determine the eye center, limbic and pupillary boundary of the iris segmentation. Hence, a combination with periocular area is suggested to improve the accuracy of the recognition system. However, the existing periocular features extraction methods to extract the texture features can be easily affected by a background complication and depends on image size and orientation. Although some of the existing studies have combined the texture and colour features to increase the accuracy of periocular recognition, still, the method of colour feature extraction is limited to spatial information and quantization effects. This paper presents the analysis of texture and colour based features of periocular for low resolution colour iris images. Two datasets: UBIRIS.v2 and UBIPr are used and the proposed method provides robust discriminative structure features and sufficient spatial information which has increased the discriminating power.
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