• A 8×1 Sprout-Shaped Antenna Array with Low Sidelobe Level of -25 dBA 8×1 Sprout-Shaped Antenna Array with Low Sidelobe Level of -25 dB

    In this paper, a 8×1 sprout-shaped antenna array with low sidelobe level (SLL) for point to point applications has been proposed. The array has the dimensions of 165 mm × 195 mm × 1.575 mm and is designed on Rogers RT/Duroid 5870tm with the thickness of 1.575 mm and permittivity of 2.33. In order to achieve low SLL, Chebyshev distribution w...

    pdf6 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 9 | Lượt tải: 0

  • A Novel Method Based on Two Different Thicknesses of The Sample for Determining Complex Permittivity of Materials Using Electromagnetic Wave Propagation in Free Space at X-BandA Novel Method Based on Two Different Thicknesses of The Sample for Determining Complex Permittivity of Materials Using Electromagnetic Wave Propagation in Free Space at X-Band

    We propose a method for determining the complex permittivity of materials using two different thicknesses of the sample in free space. The method consists of two antennas placed in free space and the two different thicknesses material samples placed in the middle of the two antennas. The results show that the permittivity of material is quit...

    pdf6 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 9 | Lượt tải: 0

  • A Feeding Network with Chebyshev Distribution for Designing Low Sidelobe Level Antenna ArraysA Feeding Network with Chebyshev Distribution for Designing Low Sidelobe Level Antenna Arrays

    In this paper, a Chebyshev distribution based feeding network for designing low SLL microstrip antenna arrays has been proposed. The detailed design procedure and calculation have been presented. A feeding network for 8×1 linear antenna array with Chebyshev weigths (preset SLL of -25 dB) has been designed and simulated as a demonstration. Th...

    pdf6 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 8 | Lượt tải: 0

  • Deep Learning for Epileptic Spike DetectionDeep Learning for Epileptic Spike Detection

    In conclusion, we have applied the DBN model as a classifier to detect epileptic spikes in EEG signal. The training process show that the DBN can learn hidden features in EEG data which distinguish between epileptic spikes and non spikes group with high accuracy. The experiment results not only indicates that learning high-level representati...

    pdf13 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 8 | Lượt tải: 0

  • A Model for Real-Time Concurrent Interaction Protocols in Component InterfacesA Model for Real-Time Concurrent Interaction Protocols in Component Interfaces

    We have proposed a simple but powerful technique to specify interaction protocols for the interface of components. Our model can specify many aspects for interaction: the temporal order between services, concurrency for services, and timing constraints. We also have shown that the problem of checking if a timed automaton conforms to a given ...

    pdf8 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 9 | Lượt tải: 0

  • High-Efficiency High-Gain 2.4 GHz Class-B Power Amplifiers in 0.13 µm CMOS for Wireless CommunicationsHigh-Efficiency High-Gain 2.4 GHz Class-B Power Amplifiers in 0.13 µm CMOS for Wireless Communications

    In this paper, we have presented the design and simulation of high-efficiency high-gain 2.4 GHz PAs. Two class-B cascode PAs are designed in TSMC 0.13µm CMOS mixedsignal/RF process. The performances of the PAs are verified by simulation results, and are competitive to other state-of-the-art PAs in CMOS. Both designed PAs are suitable for wir...

    pdf7 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 6 | Lượt tải: 0

  • Improving Performance of the Asynchronous Cooperative Relay Network with Maximum Ratio Combining and Transmit Antenna Selection TechniqueImproving Performance of the Asynchronous Cooperative Relay Network with Maximum Ratio Combining and Transmit Antenna Selection Technique

    This paper proposes the AF asynchronous cooperative relay network using MRC and TAS technique. The use of MRC technique for combining multiple received symbols is proved to obtain maximal received diversity gain in compared to conventional DSTC scheme [1,2]. In the second phase, the TAS technique allows to reduce the ISI components among the...

    pdf9 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 10 | Lượt tải: 0

  • A Pencil-Beam Planar Dipole Array Antenna for IEEE 802.11ac Outdoor Access Point RoutersA Pencil-Beam Planar Dipole Array Antenna for IEEE 802.11ac Outdoor Access Point Routers

    This paper has proposed a new design of planar dipole array antenna. The array antenna comprising of 4 × 4 × 3 elements has been constructed from the FR4-epoxy substrate. Good agreements between measurement and simulation have been obtained. It can be a good product for Wi-Fi ac outdoor access point (AP) routers.

    pdf6 trang | Chia sẻ: HoaNT3298 | Ngày: 25/11/2020 | Lượt xem: 6 | Lượt tải: 0

  • Giáo trình Quản trị thiết kế Web bằng JoomlaGiáo trình Quản trị thiết kế Web bằng Joomla

    Rich Text Editor (RTE) Rich Text Editor được bao gồm trong Joomla. Bạn có thể dùng RTE Editor để nhập nội dung của mình. Bạn cũng có thể cắt và dán từ những ứng dụng phổ biến khác, bao gồm các phần mềm lập trình và soạn thảo. Nó đơn giản tiến trình di chuển nội dung từ tài liều vào web. Giao diện tương đối phổ biến với mọi người quen dùng phần...

    pdf219 trang | Chia sẻ: hoant3298 | Ngày: 24/11/2020 | Lượt xem: 14 | Lượt tải: 0

  • Web Technologies and Programming Lecture 16Web Technologies and Programming Lecture 16

    Why User Interface should look Good? Guidelines and Principles of User Interface Design Principles of Screen Design Interface Design Goals Interaction Styles Types of Interfaces What are the Advantages of Style Guidelines? What are Advantages of Good Interface? What are Disadvantages of Bad Interface?

    pptx57 trang | Chia sẻ: hoant3298 | Ngày: 24/11/2020 | Lượt xem: 16 | Lượt tải: 0