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Petri网在电力系统中的应用

电力系统及其自动化学报 2007年第5期19卷 14-23页

作者：林振智文福拴钟志勇黄杰波华南理工大学电力学院香港理工大学电机系

介绍了Petri网的基本原理及其在电力系统中的应用。通过收集和整理国内外相关学术期刊和会议论文集中已发表的数十篇有关Petri网在电力系统中应用研究方面的学术论文,按故障诊断、系统恢复、配电系统重构、机组组合、网络拓扑分析、可... 详细信息

介绍了Petri网的基本原理及其在电力系统中的应用。通过收集和整理国内外相关学术期刊和会议论文集中已发表的数十篇有关Petri网在电力系统中应用研究方面的学术论文,按故障诊断、系统恢复、配电系统重构、机组组合、网络拓扑分析、可靠性分析、继电保护建模与混杂电力系统分析等方面分别进行了分类述评。从现有的研究工作情况来看,Petri网在电力系统中的应用涉及面很广,并受到了比较普遍的重视。

关键词：电力系统 Petri网故障诊断系统恢复配电系统重构

Expression of cancer stem cell surface markers after chemotherapeutic drug treatment to reflect breast cancer cell regrowth

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中华乳腺病杂志（电子版） 2014年第1期8卷 28-32页

作者： Qing Liu Wings Tjing yung Loo Louis Wing Cheong Chow Kelly Wei Yu Rui UNIMED Medical Institute and Organizationfor Oncology and Translational Research

Objective To detect the cell viability and the expressions of stem cell surface markers after chemotherapeutic drug *** We observed the cytotoxic effects of three chemotherapeutic agents[epirubicin(Epi),fluorouracil(5-fu)and cyclophosphamide(Cyc)]in three cell lines,and the cell viabilities after removed these chemotherapeutic *** of stem cell surface markers CD44,CD24,CD90,CD14 and aldehyde dehydrogenase1(ALDH1)in breast cancer cells were analyzed by real-time *** post hoc analysis(Tukey’s tests)in conjunction with one-way ANOVA was used for statistical *** The initial cytotoxic efficacy was most *** the treatment of the same therapeutic agents,cell viability was decreased by 64.8%35.14%,32.25%in BT-483 cells,66.4%,22.94%and 45.88%in MDA-MB-231 cells,97.1%,99.5%and 76.4%in MCF *** difference was significant compared with that before treatment(P=0.000).However,the inhibitory effects were diminished after chemotherapeutic agent *** viabilities were increased to 167.9%,212.04%and 188.66%in MDA-MB-231 cells at48 h after *** 72 h after withdrawal,cell viability was increased with a significant difference in three cell lines(all P values=0.000).Expressions of CD44 and ALDH1 were most prevalent for MDA-MB-231,BT-483 and MCF-7 ***1 mRNA level was significant higher in BT-483(HER-2 overexpression cell line)than MDA-MB-231(triple negative cell line)(P=0.012).CD14 mRNA level in MCF-7 cells were significantly lower than that in MDA-MB-231 and BT-483(P=0.003,0.001).BT-483 showed significantly higher level of CD44 than MDA-MB-231 and MCF-7 cell line(P=0.013,0.020),and no significant difference was detected between MDA-MB-231 and MCF-7 breast cancer cells(P=0.955).CD90 mRNA expressions were detected in MDA-MB-231 cells and MCF-7 cells,but not in BT-483 *** Some malignant cells could survive in vitro and begin to proliferate again between cycles of chemotherapy.

关键词：乳腺癌细胞活性治疗方法临床分析

Capecitabine with radiation is an effective adjuvant therapy in gastric cancers

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World Journal of Gastroenterology 2010年第29期16卷 3709-3715页

作者： chee Kian Tham Su Pin Choo Donald Yew Hee Poon Han Chong Toh Simon Yew Kuang Ong Sze Huey Tan Michael Lian Chek Wang Kian Fong Foo Department of Medical Oncology National Cancer Centre Singapore Department of Clinical Trials and Epidemiological Sciences National Cancer Centre Singapore Department of Radiation Oncology National Cancer Centre Singapore

AIM:To analyze the outcome of patients who received concurrent capecitabine(Xeloda) and radiation(XRT) compared to the established concurrent 5-fluorouracil(5-fu) with radiation(5fu-RT) and fluoropyrimidine-based chemotherapy alone as adjuvant treatment in gastric ***:All patients with gastric cancers who received adjuvant treatment at the National Cancer Centre Singapore between 1996 and 2006 were *** outcomes of patients who received XRT were compared with those who had 5fu-RT or chemotherapy alone as adjuvant therapy for gastric ***:A total of 108 patients were *** age at diagnosis was *** majority of the patients(64.8%) had advanced stage Ⅲ and Ⅳ disease(with no distant metastasis).All except 4 patients had D2 *** one patients(19.4%) had positive surgical resection *** three patients received XRT compared with 52 who had 5fu-RT and 23 who received chemotherapy *** the patients in the chemotherapy-only group,all had fluoropyrimidine-based therapy,with added cisplatin in 7 patients and epirubicin in 2 *** recurrence-free survival was longer for the XRT group(52 mo) compared to the 5fu-RT(35 mo) and chemotherapy-only groups(25 mo)(P=0.48).The patients in the XRT group achieved similar median overall survival(53 mo) as the 5fu-RT(54 mo) and the chemotherapy-only groups(44 mo)(P=0.5).CONCLUSION:Capecitabine with concurrent radiation was as effective as concurrent 5fu with radiation or fluoropyrimidine-based chemotherapy alone when used as adjuvant treatment in patients with gastric cancers.

关键词： Capecitabine Radiation Gastric cancer Adjuvant chemotherapy

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利用局部方向微分向量一致性的角点检测

光学精密工程 2015年第12期23卷 3509-3518页

作者：王富平水鹏朗西安电子科技大学雷达信号处理国家重点实验室陕西西安710071

在边缘轮廓提取的基础上,提出了一种利用局部方向微分向量一致性的角点检测算法以消除边缘噪声对角点检测产生的不利影响。该算法提取图像的边缘轮廓来降低算法计算量;利用各向异性高斯方向导数(ANDD)滤波器提取每个像素处的方向微分向... 详细信息

在边缘轮廓提取的基础上,提出了一种利用局部方向微分向量一致性的角点检测算法以消除边缘噪声对角点检测产生的不利影响。该算法提取图像的边缘轮廓来降低算法计算量;利用各向异性高斯方向导数(ANDD)滤波器提取每个像素处的方向微分向量并进行幂次变换,以增强向量的各向异性;进而利用相邻像素的方向微分向量构建一致性测度。最后,对同一轮廓上的一致性测度进行均值归一化,得到最终角点测度。实验显示,提出算法的平均角点定位误差为1.52pixel,与对比算法接近;检测准确率分别比点到弦距离累积(CPDA)法、相对局部曲率(He&yung)法提高了58%和5.5%,与归一化残余面积(RA)算法相等,同时角点错检率比He&yung和RA少25.5%和21.6%。提出的算法能准确地检测出真实角点,并具有更小的错误检测率,更高的角点重复率,而且对边缘噪声十分鲁棒。

关键词：计算机视觉角点检测各向异性高斯方向导数边缘轮廓向量一致性

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汞矿周围环境与动植物汞污染情况的调查

动物医学进展 2014年第3期35卷 134-136页

作者：施云刚李秀富万洁妤欧德渊贵州大学动物科学学院贵州贵阳550025 铜仁职业技术学院贵州铜仁554300

以汞矿周围环境和畜禽为研究对象,调查汞含量和富集规律。结果表明,环境中除水体外,其余测定值均高于国家限量值。环境中汞含量最高的为土壤,其次为牧草、白菜、大米、玉米、萝卜;猪体内汞蓄积量为肌肉>肾脏>心脏>肝脏>肺脏>脾脏;牛体... 详细信息

以汞矿周围环境和畜禽为研究对象,调查汞含量和富集规律。结果表明,环境中除水体外,其余测定值均高于国家限量值。环境中汞含量最高的为土壤,其次为牧草、白菜、大米、玉米、萝卜;猪体内汞蓄积量为肌肉>肾脏>心脏>肝脏>肺脏>脾脏;牛体内汞蓄积量为肌肉>肾脏>肝脏>脾脏>肺脏>心脏;羊体内汞蓄积量为肌肉>肝脏>肾脏>肺脏>脾脏>心脏;家禽未见超标现象。本研究结果表明,家畜肌肉、肾脏、肝脏中汞蓄积量严重超过国家限量值,汞矿周围饲养的家畜存在严重的食品安全问题。

关键词：汞动物组织环境汞污染

Evaluation of Empty Nose Syndrome Scores in Patients Undergoing Extended Endoscopic Transnasal Sellar Surgery

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International Journal of Clinical Medicine 2020年第3期11卷 126-134页

作者： Yu-Hsuan Kuo Chia-Jung Lee Hsing-Mei Wu Chung-Yu Hao yung-Hui Liu Yih-Jeng Tsai Department of Otolaryngology Head and Neck Surgery Shin Kong Wu Ho-Su Memorial Hospital Taipei Taiwan School of Medicine Fu-Jen Catholic University New Taipei City Taiwan Department of Neurosurgery Shin Kong Wu Ho-Su Memorial Hospital Taipei Taiwan.

Background: Several large series have established endoscopic transnasal sellar surgery as the procedure of choice for removal of tumors in the sellar area. Although this procedure provides a less invasive approach to the sella, it entails complications such as nasal bleeding, impaired olfactory function, atrophic rhinitis, synechiae, etc. No studies have yet reported potential morbidities such as empty nose syndrome (ENS), although patients have a relatively empty nasal cavity after surgery. Therefore, we sought to verify the percentage of patients who truly met the diagnostic criteria for ENS after endoscopic transnasal sellar surgery, determine the variation between pre- and postoperative scores in each Empty Nose Syndrome 6-Item Questionnaire (ENS6Q) item, and further evaluate the symptoms that may affect the patients the most after surgery. Methods: Between March 2015 and January 2019, eventually 11 patients who underwent extended endoscopic transnasal sellar surgery in Shin Kong Wu Ho-Su Memorial Hospital, a tertiary referral medical center in Taipei, Taiwan, were enrolled. The patients completed the recently validated ENS6Q after surgery. Results: One patient met the objective diagnostic criteria for ENS (score ≥ 11 in ENS6Q). Significant differences were observed in the pre- and postoperative total ENS6Q scores. The pre- and postoperative scores of “nose feeling too open” and nasal crusting showed statistically significant differences. further, compared with the other items, the postoperative score of nasal crusting increased most obviously, and it may be the most apparent operation-related symptom. Conclusion: This study is the first to report the possibility of developing ENS after endoscopic transnasal sellar surgery. Although the transnasal endoscopic approach is a safe and minimally invasive procedure for the treatment of sellar lesions, possible complications such as ENS should be considered.

关键词： Endoscopic Transnasal Sellar Surgery Empty Nose Syndrome ENS6Q Nasal Crusting Aerodynamics of Nasal Airflow

Medium-range order endows a bulk metallic glass with enhanced tensile ductility

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Journal of Materials Science & Technology 2023年第28期159卷 10-20页

作者： Sinan Liu Weixia Dong Zhiqiang Ren Jiacheng Ge Shu fu Zhenduo Wu Jing Wu Yu Lou Wentao Zhang Huaican Chen Wen Yin Yang Ren Joerg Neuefeind Zesheng You Ying Liu Xun-Li Wang Si Lan Herbert Gleiter Institute of Nanoscience School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Department for Physics City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SARChina City University of Hong Kong Shenzhen Research Institute Shenzhen 518057China City University of Hong Kong(Dongguan) Dongguan 523000China Cryo-TEM center Southern University of Science and TechnologyShenzhen 518055China Spallation Neutron Source Science Center Institute of High Energy Physics(IHEP)Chinese Academy of Sciences(CAS)Dongguan 523808China Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology 1 Zhongziyuan RoadDalangDongguan 523803China Chemical and Engineering Materials Division Oak Ridge National LaboratoryOak RidgeTennessee37831USA

Developing ductile bulk metallic glasses(BMGs)can benefit from an in-depth understanding of the structure-property relation during plastic ***,endowing BMGs with tensile ductility in BMGs needs to reveal the response of critical structure units during ***,we report the experimental results of an in-situ synchrotron high-energy X-ray study of a Zr-based BMG under uniaxial tension after preprocessing by canning compression of the three-dimensional compressive stress *** is revealed that the canning-compressed BMG(CC-BMG)sample has better tensile ductility and higher ultimate strength than the as-cast sample,which possesses heterogeneous and loosely packed local struc-tures on medium-range *** experimental results revealed two stages of plastic deformation in the CC-BMGs compared with one stage of plastic deformation in the as-cast ***,the shift in the first sharp diffraction peak along the tension direction for the canning-compressed sample is substan-tially more pronounced than that of the as-cast ***,the real-space analysis illustrates a competition mechanism between the 2-atom and 3-atom connection modes on medium-range order during the plastic deformation of the ***,the ordering on the medium-range scale de-creases in the first plastic deformation stage but increases in the second plastic deformation ***-fore,a structural crossover phenomenon occurs in the CC-BMG during plastic *** results demonstrate a structure-property correlation for the CC-BMGs of heterogeneous medium-range ordered structures,which may be beneficial for endowing BMGs with ductility based on medium-range order engineering techniques.

关键词： Bulk metallic glass Medium-range order Tensile ductility Structure-property relation

Plug-and-Play Approach to Non-adiabatic Geometric Quantum Computation

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Plug-and-Play Approach to Non-adiabatic Geometric Quantum Co...

第十八届全国量子光学学术会议

作者：刘宝杰 Xue-Ke Song Zheng-Yuan Xue Xin Wang Man-Hong yung 南方科技大学 Institute for Quantum Science and Engineering and Department of PhysicsSouthern University of Science and Technology Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and School of Physics and Telecommunication EngineeringSouth China Normal University Department of Physics City University of Hong KongTat Chee AvenueKowloonHong Kong SARChinaand City University of Hong Kong Shenzhen Research Institute Shenzhen Key Laboratory of Quantum Science and Engineering

Geometrical phases acquired in cyclic quantum evolutions can be utilized as natural resources for constructing robust logic gates for quantum information processing, which was originally proposed through adiabatic changes of the driving Hamiltonian. Practically, much efforts have been made to shorten the construction times of geometrical gates, known as non-adiabatic holonomic quantum computation（NHQC）. However, previous NHQC gates require the driving Hamiltonian to satisfy a set of rather restrictive conditions, reducing the robustness of the resulting geometric gates against control errors. Here we show that non-adiabatic geometric gates can be constructed in an alternative way where the driving Hamiltonian can exhibit a high degree of flexibility for retaining the robustness of the geometric phases. Consequently, this approach makes it possible to incorporate most of the existing optimal control methods, such as dynamical decoupling, composite pulses, and shortcut to adiabaticity, into the construction of geometrical gates, to further address different types of errors. furthermore, this extensible approach of geometric quantum computation can be applied to various physical platform such as superconducting qubits and nitrogen-vacancy（NV） centers. Specifically, we performed numerical simulation to show how the noise robustness in the recent experimental implementations [Phys. Rev. Lett. 119, 140503（2017）] and [Nat. Photonics 11, 309（2017）] of NHQC with NV centers can be significantly improved by our optimized NHQC approach. These results cover a large class of new techniques combing the noise robustness of both geometric phase and optimal control theory. Recently, a restricted form of NHQC+STA has already been demonstrated experimentally, using only three energy levels of a superconducting qubit, where the theoretical proposal was contributed by the first and last authors of this work.

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微波法测量悬浮体浓度

兰州大学学报 1984年第1期 25-30页

作者：陈孟尧赵克玉许福永杨忠英李萍

本文介绍了用介质分层的物理模型得到的悬浮体的浓度与衰减量之间的理论公式。用微波桥路法测得了悬浮体的浓度,此法具有简单、迅速、准确、直接的优点,可望用于水文地质、食品、化工、建筑等部门。

关键词：悬浮体厚度实验曲线悬浮物分散体系悬浮质桥路法微波法衰减量物理模型模型(物理)