7,429 research outputs found
Fu Describing About the Author Himself: A Focus on Ban Gu "You tong fu"
No full textFrom Later Han dynasty onwards, the number of fu describing about the author himself has increased. There are several possible reasons for this, but the most important reason is probably that there was no other genre through which one could express oneself except for fu in this period. For instance, the fiveword poetry was still in the middle way of establishing its own style at that moment. Moreover, in Former Han, there were few opportunities for authors to talk about themselves in detail in fu, because the main readers were emperors and kings of countries. In Later Han, the readers had become more diverse. That is probably the reason why more fu began to mention about the authors themselves in this period. Ban Gu (32-92), who is a representative scholar of Later Han and also a man of letters, expressed his aim by writing "You tong fu". Its main content is that though one's encounter with a disaster or felicity is not always derived from our behavior, we have to have a strong will and take action to overcome disasters. This idea is supported by Ban Gu's experiences of not attaining his aim. Such experiences are common in Chinese authors. One of the earliest examples is Chu Ci. Also, Chu Ci is the one of the origins of fu. It is surprising that authors expressed things about themselves mostly in fu describing journeys. It may be easier to understand this tendency if we think they substituted the heaven wander in Chu Ci with a ground journey. Chu Ci was a model for authors to express their aim which could not come true, even if the journey on the ground and the wander in heaven are different
Space charge dynamics in pressboard-oil-pressboard multilayer system under DC voltages
No full textConverter transformers play a critical role in HVDC power transmission system. Space charge is a general concern for dielectric system under DC field. In this paper, the space charge behavior in a sandwiched oil-pressboard insulation system has been investigated using the pulsed electro-acoustic (PEA) method. The presence of homo-charges in the pressboards bulk and hetero-charges at the two interfaces between oil gap and pressboards leads to the electric field enhancement in the pressboards but reduction in the oil gap. The electric field enhancement is much larger than the value estimated by the Maxwell-Wagner polarization
Online Iterative Adaptive Dynamic Programming Approach for Solving the Zero-Sum Game for Nonlinear Continuous-Time Systems with Partially Unknown Dynamics
No full textThe current study presents an online iterative adaptive dynamic programming approach to resolve the zero-sum game (ZSG) for nonlinear continuous-time (CT) systems containing a partially unknown dynamic. The Hamilton-Jacobian-Issacs (HJI) equation is solved along the state trajectory according to the value function approximation and the policy improvement online. Relaxed dynamic programming is utilized to ensure the algorithm’s convergence. Model and costate networks were established to conduct the method. Computational simulations are performed to present the efficiency of the algorithm.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Control & Simulatio
Note of congratulations from Jack Huang to Dr. Frank Fu, January 1, 1983
No full textA note of congratulations to Dr. Frank H. Fu (Fu Haojian) from Springfield College Alum, Jack Huang, Class of 1936, dated January 1, 1983. The card has country lane scene on the front, with a tree with pink leaves, a buttfly, and a tree with its leaves still green. There is the roof of a house just visible over the hill. It also says Congratulations. Inside is short message.Mr. Huang wrote a short personal note congratulating him for his efforts and the recent recognition by then President Ronald Reagan, or the actor as he refers to him, and saying how proud the Chinese are of him. An author of 17 textbooks and more than 100 journal articles, Frank H. Fu, G’73, DPE’75, has worked across the world in China, Canada, and the United States. Throughout his career, he has received many distinguished honors, including the Medal of Honor in 2009 by the SAR Government of Hong Kong.
Fu has held positions at institutions such as the Chinese University of Hong Kong and Springfield College, where he served as director of the International Center starting in 1978. Five years later, Fu returned to Hong Kong, but has since remained actively involved with Springfield College, participating in talks on the campus and even hosting a gathering of nearly 60 alumni in Hong Kong.
Currently, Fu is the associate vice president of Hong Kong Baptist University, where he also works as the director of the Dr. Stephen Hui Research Centre of Physical Recreation and Wellness. In addition, Fu is president of the Society of Chinese Scholars on Exercise Physiology and Fitness, chairperson of Hong Kong Coach Education Committee, a research fellow of the Research Consortium of SHAPE America, and an international fellow of the National Academy of Kinesiology
Supply chain finance: a systematic literature review and bibliometric analysis
No full textSupply Chain Finance (SCF) is an effective method to lower financing costs and improve financing efficiency and effectiveness, and it has gained research momentum in recent years. This paper adopts a systematic literature review methodology combined with bibliometric, network and content analysis based on 348 papers identified from mainstream academic databases. This review provides insights not previously fully captured or evaluated by other reviews on this topic, including key authors, key journals and the prestige of the reviewed papers. Using rigorous bibliometric and visualisation tools, we identified four research clusters, including deteriorating inventory models under trade credit policy based on the EOQ/EPQ model; inventory decisions with trade credit policy under more complex situations; interaction between replenishment decisions and delay payment strategies in the supply chain and roles of financing service in the supply chain. Based on the clusters identified, we carried out a further content analysis of 112 papers, identifying research gaps and proposing seven actionable directions for future research. The findings provide a robust roadmap for further investigation in this field
Practical application of on-line partial discharge monitoring technique on 500kV shunt reactor
No full textConsidering the damage mechanism of oil-impregnated paper insulation in power transformers, shunt reactors and other high voltage electrical apparatus caused by partial discharge, a concept of “destructive partial discharge” is introduced in this paper. The intensity of this discharge is regarded as several thousands pico-coulomb (pC) and may cause the insulation a fatal damage. An oil-paper insulation is usually able to withstand this type of partial discharge for a period of time prior to failure. This provides engineers a time window to detect it. This paper describes an on-line partial discharge monitoring system for 500kV shunt reactors. The commission results from 3 single-phase shunt reactors either connected or disconnected to the grid showed that the on-line partial discharge detecting system has a high noise immunising ability. Two years later after the installation, a pre-warning signal was received from one shunt reactor indicating the existence of an intermittent discharge. The acoustic emission system located its position at the low end of the high voltage bushing in the oil. Dissolved gasses analysis (DGA) in the oil suggested the presence of partial discharge, as acetylene (C2H2) was as high as 20ppm. PD activity was further confirmed by a physical examination on the reactor
PyFOSC: a pipeline toolbox for BFOSC/YFOSC long-slit spectroscopy data reduction
No full text<p><strong>Please note: This program is under active development. The documentation may be inconsistent with the latest codes.</strong></p>
<p><strong>IRAF/PyRAF installation guide for Mac with Apple Silicon (M1/M2) can be found <a href="https://yumingfu.space/tech/2024-iraf-mac-installation/" rel="nofollow">here</a>.</strong></p>
<p>PyFOSC is a pipeline toolbox for long-slit spectroscopy data reduction written in Python. It can be used for FOSC (Faint Object Spectrograph and Camera) data from Xinglong/Lijiang 2-meter telescopes.</p>
<p>BFOSC (Beijing-Faint Object Spectrograph and Camera) is an instrument of the 2.16-m Telescope in Xinglong Observatory, National Astronomical Observatories, Chinese Academy of Sciences (NAOC) (IAU code: 327, coordinates: 40°23′39″ N, 117°34′30″ E). For more information about BFOSC, please see <a href="http://www.xinglong-naoc.org/html/en/gcyq/216/detail-18.html" rel="nofollow">http://www.xinglong-naoc.org/html/en/gcyq/216/detail-18.html</a>.</p>
<p>YFOSC (Yunnan-Faint Object Spectrograph and Camera) is an instrument of the 2.4-m Telescope in Lijiang Observatory, Yunnan Observatories, Chinese Academy of Sciences (YNAO) (IAU code: O44, coordinates: 26°42′33.1″ N, 100°1′51.6″ E). For more information about YFOSC, please see <a href="http://wiki.gmg.org.cn/pages/viewpage.action?pageId=557106" rel="nofollow">http://wiki.gmg.org.cn/pages/viewpage.action?pageId=557106</a>.</p>
<div>
<h2>1. Installation</h2>
</div>
<div>
<h3>1.1. Dependencies</h3>
</div>
<div>
<pre><code>IRAF
PyRAF
pandas
ccdproc
</code></pre>
<div> </div>
</div>
<p><code>pandas</code> is already included in the Anaconda distribution. To install <code>ccdproc</code> with <code>conda</code>, you can use:</p>
<div>
<pre>conda install -c astropy ccdproc</pre>
<div> </div>
</div>
<p>or</p>
<div>
<pre>conda install -c conda-forge ccdproc</pre>
<div> </div>
</div>
<p>This package depends on <a href="http://iraf.noao.edu/" rel="nofollow">IRAF</a> and <a href="http://www.stsci.edu/institute/software_hardware/pyraf" rel="nofollow">PyRAF</a>. You can download and install the <a href="https://iraf-community.github.io/" rel="nofollow">IRAF Community Distribution</a>.</p>
<div>
<h3>1.2. Install the <a href="https://iraf-community.github.io/" rel="nofollow">IRAF/PyRAF Community Distribution</a></h3>
</div>
<p>For detailed description on how to install IRAF and PyRAF, visit:</p>
<ul>
<li><a href="https://iraf-community.github.io/install.html" rel="nofollow">https://iraf-community.github.io/install.html</a></li>
<li><a href="https://iraf-community.github.io/x11iraf.html" rel="nofollow">https://iraf-community.github.io/x11iraf.html</a></li>
<li><a href="https://iraf-community.github.io/pyraf.html" rel="nofollow">https://iraf-community.github.io/pyraf.html</a></li>
</ul>
<p>If you are using a Mac with Apple Silicon (M1/M2), you can follow the instructions in <a href="https://yumingfu.space/tech/2024-iraf-mac-installation/" rel="nofollow">this blog post</a> to install IRAF/PyRAF.</p>
<div>
<h3>1.3. Download PyFOSC and set environment variable for it.</h3>
</div>
<p>You can use <code>git clone</code> to download this package.</p>
<div>
<pre>git clone https://github.com/rudolffu/pyfosc.git</pre>
<div> </div>
</div>
<p>In order to run PyFOSC commands in the terminal, you need to add the path of PyFOSC and its sub-directory <code>src</code> to PATH, by editing <code>~/.bashrc</code> (Linux, e.g., Ubuntu) or <code>~/.bash_profile</code> (Mac OS). An example of this can be:</p>
<div>
<pre>export PATH=/Your/Path/to/pyfosc:PATH
export PATH=/Your/Path/to/pyfosc/src:PATH</pre>
<div> </div>
</div>
<div>
<h2>2. Usage</h2>
</div>
<div>
<h3>2.1 Preparation</h3>
</div>
<div>
<h4>2.1.1 Run <code>pyfosc_init</code> to begin</h4>
</div>
<p>First go to the working directory which contains FOSC spectroscopic data. Run <code>pyfosc_init</code> from the terminal:</p>
<div>
<pre><code>pyfosc_init
</code></pre>
<div> </div>
</div>
<div>
<h4>2.1.2 Generate lists of files</h4>
</div>
<p>As PyFOSC pipeline reduce data grouped by different types (bias, flat, object, etc), make sure you have lists of fits files as follows:</p>
<div>
<pre><code>zero.list --------------- List of bias files (e.g. bias*.fits).
flat.list --------------- List of flat field files (e.g. flat*.fits).
objall.list ------------- List of 2d spectra images of all objects (science targets and standard stars).
lampall.list ------------ List of all 2d lamp spectra images.
flatnall.list ----------- List of 2d images that need zero correction (flat.list + lampall.list + objall.list).
specall.list ------------ List of all 2d spectra images (objall.list + lampall.list).
</code></pre>
<div> </div>
</div>
<div>
<h3>2.2 Running the pipeline</h3>
</div>
<p>You can run <code>pyfosc_run.sh</code> from the terminal:</p>
<div>
<pre><code>pyfosc_run.sh
</code></pre>
<div> </div>
</div>
<p>Alternatively, you can run the scripts step by step, following the order as:</p>
<div>
<pre><code>makezero_ccdp.py # Combine zero(bias) frames.
ccdotz.py # Do zero(bias), overscan correction and trimming.
makeflat2m_ccdp.py # Combine flat fields.
makereflat2m.py # Do (illumination) normalization and get perfect flat.
divideflat2m.py # Do flat correction.
removecr_ccdp.py # Remove cosmic rays in two-d images using ccdproc.
doapall.py # Extract spectra.
reidentlamp2m.py # Reidentify lamp spectra with previously stored ones.
#Can use identlamp2m.py instead to identify lamp by oneself.
wavecal2m.py # Do wavelength calibration, flux calibration.
telluric_base2m.py # Telluric correction and one-d spectra extraction.
</code></pre>
<div> </div>
</div>
<p>Plot all final 1d spectra with:</p>
<div>
<pre><code>plotonedsp.py
</code></pre>
<div> </div>
</div>
<p>Move some intermediate files into <code>INTMD</code> directory:</p>
<div>
<pre><code>mvintmd.sh
</code></pre>
<div> </div>
</div>
<div>
<h2>3. Credits</h2>
</div>
<p>This software uses BSD 3-Clause License.</p>
<p>Copyright (c) 2019-2024, Yuming Fu<br>All rights reserved.</p>
<p>This software contains sources from third-party softwares.</p>
<p>The <code>pyfosciraf_data/onedstds</code> directory is from <code>IRAF</code>, and it contains standard calibration data for extinction and sensitivity calibration.</p>
<p>The <code>removecr_ccdp.py</code> script uses the <a href="https://ccdproc.readthedocs.io/en/latest/api/ccdproc.cosmicray_lacosmic.html#ccdproc.cosmicray_lacosmic" rel="nofollow"><code>ccdproc.cosmicray_lacosmic</code></a> module to remove cosmic rays. The <code>ccdproc.cosmicray_lacosmic</code> module is based on the L.A.Cosmic algorithm for Laplacian Cosmic Ray Identification by Pieter G. van Dokkum (Yale) from <a href="http://www.astro.yale.edu/dokkum/lacosmic/" rel="nofollow">http://www.astro.yale.edu/dokkum/lacosmic/</a>. L.A.Cosmic detects cosmic rays of arbitrary shapes and sizes, and distinguishes between undersampled point sources and cosmic rays. If you use this program please refer to P. G. van Dokkum, 2001, PASP, 113, 1420.</p>
<p>Please see <code>COPYRIGHT</code> file and <code>pyfosc$doc/LICENSES</code> directory for detailed copyright information.</p>
<div>
<h2>4. How to cite</h2>
</div>
<p>Yuming Fu. (2024, April 13). PyFOSC: a pipeline toolbox for BFOSC/YFOSC long-slit spectroscopy data reduction (Version v1.1.0). Zenodo. <a href="https://doi.org/10.5281/zenodo.10967240" rel="nofollow">https://doi.org/10.5281/zenodo.10967240</a></p>
<p>Cite the current version (v1.1.0) with bibtex:</p>
<div>
<pre><code>@software{yuming_fu_2024_10967240,
author = {Yuming Fu},
title = {{PyFOSC: a pipeline toolbox for BFOSC/YFOSC long-slit spectroscopy data reduction}},
month = apr,
year = 2024,
publisher = {Zenodo},
version = {v1.1.0},
doi = {10.5281/zenodo.10967240},
url = {https://doi.org/10.5281/zenodo.10967240}
}</code></pre>
</div>
Lu Yu and Tu Fu
No full textLu Yu 陸游 (1125-1209), the famous patriot poet of the Southern Sung, admired Tu Fu above all the poets of the past, and the deep influence which Tu Fu exercised on him may be seen throughout his work. In spite of this fact, however, there are many differences which mark the lives and works of the two men. As a first step towards a comparative study of the two poets, the author has attempted to discover how Lu Yu evaluated his predecessor, using evidence found in Lu Yu's poems themselves. By Lu Yu's time, Tu Fu was already widely recognized as the greatest Chinese poet. It had become a popular pastime to try to identify individual poems of Tu Fu on the basis of isolated phrases or couplets, or to compose poems made up of clever imitations of various couplets of Tu Fu. But Lu Yu, unlike most of his contemporaries, was less attracted by Tu Fu's poetic technique than by his poetic spirit, and regarded the latter as the most valuable lesson to be learned. He insisted that it was Tu Fu the man rather than Tu Fu the poet, Tu Fu the patriot rather than Tu Fu the artist, who deserved to be most highly admired. This was the foundation upon which Lu Yu's evaluation of Tu Fu rested, and the premise upon which he approached his work
Dr. Frank Fu
No full textA portrait photograph of Dr. Frank H. Fu (Fu Haojian). The writing on the photograph says "17 yrs."An author of 17 textbooks and more than 100 journal articles, Frank H. Fu, G’73, DPE’75, has worked across the world in China, Canada, and the United States. Throughout his career, he has received many distinguished honors, including the Medal of Honor in 2009 by the SAR Government of Hong Kong.
Fu has held positions at institutions such as the Chinese University of Hong Kong and Springfield College, where he served as director of the International Center starting in 1978. Five years later, Fu returned to Hong Kong, but has since remained actively involved with Springfield College, participating in talks on the campus and even hosting a gathering of nearly 60 alumni in Hong Kong.
Currently, Fu is the associate vice president of Hong Kong Baptist University, where he also works as the director of the Dr. Stephen Hui Research Centre of Physical Recreation and Wellness. In addition, Fu is president of the Society of Chinese Scholars on Exercise Physiology and Fitness, chairperson of Hong Kong Coach Education Committee, a research fellow of the Research Consortium of SHAPE America, and an international fellow of the National Academy of Kinesiology.Photograph is stapled with other photographs to folder of original student record kept by the International center
Dr. Frank Fu thinking
No full textA photograph of Dr. Frank H. Fu (Fu Haojian). He is seated with hands held up to his chin and appears to be deep in thought. There are others around him, but they are unable to be seen clearly enough to identify.An author of 17 textbooks and more than 100 journal articles, Frank H. Fu, G’73, DPE’75, has worked across the world in China, Canada, and the United States. Throughout his career, he has received many distinguished honors, including the Medal of Honor in 2009 by the SAR Government of Hong Kong.
Fu has held positions at institutions such as the Chinese University of Hong Kong and Springfield College, where he served as director of the International Center starting in 1978. Five years later, Fu returned to Hong Kong, but has since remained actively involved with Springfield College, participating in talks on the campus and even hosting a gathering of nearly 60 alumni in Hong Kong.
Currently, Fu is the associate vice president of Hong Kong Baptist University, where he also works as the director of the Dr. Stephen Hui Research Centre of Physical Recreation and Wellness. In addition, Fu is president of the Society of Chinese Scholars on Exercise Physiology and Fitness, chairperson of Hong Kong Coach Education Committee, a research fellow of the Research Consortium of SHAPE America, and an international fellow of the National Academy of Kinesiology
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