Long distance collaborative architectural education Methodics and practical applications at the Faculty of Architecture, Slovak University of Technology, Bratislava

2011 ◽  
Author(s):  
Viera Joklova
Keyword(s):  
Architectural Education ◽  
Long Distance ◽  
Practical Applications ◽  
University Of Technology

scholarly journals Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave

2020 ◽  
Vol 6 (21) ◽  
pp. eaaz3646 ◽  
Author(s):  
E. Lee ◽  
T. Luo
Keyword(s):  
Plane Wave ◽  
Incident Light ◽  
Propagation Direction ◽  
Core Shell ◽  
Long Distance ◽  
Single Plane ◽  
Practical Applications ◽  
Multipole Analysis ◽  
Cavity Structure ◽  
Pulling Force

Optical pulling force (OPF) can make a nanoparticle (NP) move against the propagation direction of the incident light. Long-distance optical pulling is highly desired for nano-object manipulation, but its realization remains challenging. We propose an NP-in-cavity structure that can be pulled by a single plane wave to travel long distances when the spherical cavity wrapping the NP has a refractive index lower than the medium. An electromagnetic multipole analysis shows that NPs made of many common materials can receive the OPF inside a lower index cavity. Using a silica-Au core-shell NP that is encapsulated by a plasmonic nanobubble, we experimentally demonstrate that a single laser can pull the Au NP-in-nanobubble structure for ~0.1 mm. These results may lead to practical applications that can use the optical pulling of NP, such as optically driven nanostructure assembly and nanoswimmers.

Study on the Architectural Education Ponder Based on the Background of Low-Carbon — Illustrated by Lanzhou University of Technology

2013 ◽  
Vol 409-410 ◽  
pp. 1555-1559
Author(s):  
Xiang Wu Meng ◽  
Ming Hui Ye
Keyword(s):  
Energy Conservation ◽  
Environmental Protection ◽  
Educational Institution ◽  
Close Relation ◽  
Time Development ◽  
Architectural Education ◽  
Global Environment ◽  
Low Carbon ◽  
The People ◽  
University Of Technology

Along with the unceasing appearance of the global environment questions, the people start to realize that the environment is very important to the humans survival. So the low-carbon ideas arise at this moment, the energy conservation and the environmental protection become the goal which the architectural industry presently needs to pursue. Then as the construction of raising architects, which is playing the very important role,because educational institution has the close relation with it. This article unified the current situation of architectural education in Lanzhou University of Technology, has analyzed some questions which exists in the architectural education, and proposed that the architectural education should unify the low-carbon ideas, has made some reform in the educational pattern, and has made the discussion to the next construction education's direction. The purpose is to raise the qualified architect who can adapt with time development, so as to fulfill effectively society responsibility of educational institution.

scholarly journals Integrated Dual-DFB PIC for High-Purity THz Carrier Generation Enabling Ultrafast THz Wireless Communications

2021 ◽  
Author(s):  
Shi Jia ◽  
Mu-Chieh Lo ◽  
Lu Zhang ◽  
Oskars Ozolins ◽  
Aleksejs Udalcovs ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Integrated Circuits ◽  
High Purity ◽  
High Speed ◽  
Single Channel ◽  
Cost Effective ◽  
Long Distance ◽  
Practical Applications ◽  
Integrated Cost ◽  
Thz Power

Abstract With the explosive growth of global wireless data traffic, the Terahertz band (0.3–10 THz) is promising for ultrafast wireless communications, due to the enormous available bandwidth [1]. Photonic generation of THz carriers displays extremely large tunable range and modulation bandwidth, making it nearly ideal for THz communications. However, the current photonics-based THz carrier generators are based on discrete bulky components [2] with high cost and energy consumption, which hinder them from practical applications. Here, we present an injection-locked heterodyne source based on generic foundry-fabricated photonic integrated circuits (PIC) attached to a photo-mixing uni-travelling carrier photodiode (UTC-PD), generating high-purity THz carriers for high-speed and long-distance wireless communication. The generated THz carrier can span from 0 to 1.4 THz, determined by the tunable wavelength spacing between the two distributed feedback (DFB) modes within the range 0-10.7 nm. We show that a generated 0.4 THz carrier transmits a record-high single-channel net rate of 131 Gbit/s over 10.7 m of wireless distance with only − 24 dBm emitted THz power, by employing 16-QAM-OFDM modulation and a nonlinear equalization technique. To the best of our knowledge, this is the highest data rate for a single-channel THz wireless transmission and requires the lowest THz power/bitrate/distance. The scheme of the monolithic dual-DFB PIC based THz generation shows a great potential for fully integrated, cost-effective and energy-efficient THz transmitters.

scholarly journals GPU Acceleration of Hydraulic Transient Simulations of Large-Scale Water Supply Systems

2018 ◽  
Vol 9 (1) ◽  
pp. 91
Author(s):  
Wanwan Meng ◽  
Yongguang Cheng ◽  
Jiayang Wu ◽  
Zhiyan Yang ◽  
Yunxian Zhu ◽  
...  
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Water Distribution ◽  
Large Scale ◽  
Parallel Implementation ◽  
Water Supply Systems ◽  
Processing Unit ◽  
Long Distance ◽  
Hydraulic Transients ◽  
Practical Applications

Simulating hydraulic transients in ultra-long water (oil, gas) transmission or large-scale distribution systems are time-consuming, and exploring ways to improve the simulation efficiency is an essential research direction. The parallel implementation of the method of characteristics (MOC) on graphics processing unit (GPU) chips is a promising approach for accelerating the simulations, because GPU has a great parallelization ability for massive but simple computations, and the explicit and local features of MOC meet the features of GPU quite well. In this paper, we propose and verify a GPU implementation of MOC on a single chip for more efficient simulations of hydraulic transients. Details of GPU-MOC parallel strategies are introduced, and the accuracy and efficiency of the proposed method are verified by simulating the benchmark single pipe water hammer problem. The transient processes of a large scale water distribution system and a long-distance water transmission system are simulated to investigate the computing capability of the proposed method. The results show that GPU-MOC method can achieve significant performance gains, and the speedup ratios are up to hundreds compared to the traditional method. This preliminary work demonstrates that GPU-MOC parallel computing has great prospects in practical applications with large computing load.

scholarly journals Performance Enhancement of the Location and Recognition of a Φ-OTDR System Using CEEMDAN-KL and AMNBP

2020 ◽  
Vol 10 (9) ◽  
pp. 3047
Author(s):  
Yanzhu Hu ◽  
Zhen Meng ◽  
Xinbo Ai ◽  
Yu Hu ◽  
Yixin Zhang ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Signal To Noise Ratio ◽  
Dead Zone ◽  
Recognition Rate ◽  
High Sensitivity ◽  
Ensemble Empirical Mode Decomposition ◽  
Time Domain Reflectometry ◽  
Long Distance ◽  
Practical Applications ◽  
Leibler Divergence

It is commonly known that for characteristics, such as long-distance, high-sensitivity, and full-scale monitoring, phase-sensitive optical time-domain reflectometry (Φ-OTDR) has developed rapidly in many fields, especially with the arrival of 5G. Nevertheless, there are still some problems obstructing the application for practical environments. First, the fading effect leads to some results falling into the dead zone, which cannot be demodulated effectively. Second, because of the high sensitivity, the Φ-OTDR system is easy to be interfered with by strong noise in practical environments. Third, the large volume of data caused by the fast responses require a lot of calculations. All the above problems hinder the performance of Φ-OTDR in practical applications. This paper proposes an integration method based on a complete ensemble empirical mode decomposition with adaptive noise and Kullback–Leibler divergence (CEEMDAN-KL) and an adaptive moving neighbor binary pattern (AMNBP) to enhance the performance of Φ-OTDR. CEEMDAN-KL improved the signal characteristics in low signal-to-noise ratio (SNR) conditions. AMNBP optimized the location and recognition via a high calculation efficiency. Experimental results show that the average recognition rate of four kinds of events reached 94.03% and the calculation efficiency increased by 20.0%, which show the excellent performance of Φ-OTDR regarding location and recognition in practical environments.

scholarly journals Dual-Dipole UHF RFID Tag Antenna with Quasi-Isotropic Patterns Based on Four-Axis Reflection Symmetry

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Chunfang Qin ◽  
Lingfei Mo ◽  
Hongliang Zhou ◽  
Hongjian Zhang
Keyword(s):  
Reflection Symmetry ◽  
Test Results ◽  
Uhf Rfid ◽  
Long Distance ◽  
Rfid Tag ◽  
Practical Applications ◽  
Symmetric Structure

In many RFID practical applications, it is required that reader can effectively read tags which are placed in radiation covering area randomly. In this paper, a passive UHF dual-dipole tag antenna with quasi-isotropic patterns is designed, which can reduce the sensibility of tag read-orientation in a long distance. Two dipoles with four-axis reflection symmetric structure are used, and the two arms of the dipole are bent to fill the space of the antenna. In this way, a quasi-isotropic tag is easier to be obtained. The test results show that the gain deviation of the proposed antenna was less than 3.25 dB, and the maximum reading range in different directions was from 6.9 m to 10.0 m, with better quasi-isotropic performance and reading range than other commercial tags.

The Architecture Education in South China University of Technology with Distinctive Regional Lingnan Characteristics

2014 ◽  
Vol 584-586 ◽  
pp. 2745-2748
Author(s):  
Ying Shi ◽  
Yu Tang
Keyword(s):  
South China ◽  
Architectural Education ◽  
Architecture Education ◽  
University Of Technology ◽  
And Storage

This paper introduces four stages of the development of Architectural Education of South China University of Technology. Architectural education characteristics of this university are summarized. Four characteristics of architectural education---open-ended and diversity, containment and storage, pragmatism and adaptability and Innovation---are mainly elaborated and comprehensively and intuitively displayed the architecture education, with distinctive regional Lingnan characteristics, in South China University of Technology.

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