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胃底腺型胃癌14例患者的临床特征及内镜和病理表现分析

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中华内科杂志 2024年第1期63卷 59-65页

作者：孙橹张春丽蔡畅廖冰冰吕宾赵晶浙江中医药大学附属第一医院消化内科杭州310006 浙江中医药大学附属第一医院病理科杭州310006

目的胃底腺型胃癌(ga-FG)少见,常发生于幽门螺杆菌(***)未感染者。本文旨在分析、总结ga-FG患者的临床、内镜和病理特点,以提高诊断水平。方法病例系列研究。纳入2020年1月1日至2022年10月1日在浙江中医药大学附属第一医院消化科诊治并... 详细信息

目的胃底腺型胃癌(ga-FG)少见,常发生于幽门螺杆菌(***)未感染者。本文旨在分析、总结ga-FG患者的临床、内镜和病理特点,以提高诊断水平。方法病例系列研究。纳入2020年1月1日至2022年10月1日在浙江中医药大学附属第一医院消化科诊治并行内镜下黏膜剥离术(ESD)切除的ga-FG患者,分析其临床表现、内镜特征、病理学免疫组化等特点。结果共14例ga-FG患者,男性5例、女性9例,平均年龄为59(39~77)岁,多无明显的临床表现,12例为***阴性,所有患者均行ESD切除,并在(13±9)个月的随访期内均存活,11例有术后内镜随访记录,均未发现复发。病灶共有15处(1例存在2处病灶),12处位于胃上1/3,10处病灶直径≤1 cm,12处形态为0-Ⅱa型,8处可见褪色改变,12处表面可见血管扩张。放大内镜及窄带成像下12处病灶有隐窝边缘上皮(MCE)扩大,均未见明显微血管异常,未见明显边界线。切除后病理标本均无脉管浸润,病灶边缘黏膜均无萎缩,免疫组化显示MUC-2均阴性;11例MUC5AC呈阴性;MUC-6均阳性;12例Ki-67≤5%。结论ga-FG是一类低恶性程度、预后良好的新型胃癌,内镜下表现有特征性的褪色改变以及表面扩张血管,通过放大内镜及窄带成像常可见表面扩大的MCE且不可见明显的边界线。

关键词：胃肿瘤内窥镜病理学窄带成像

Space-borne antenna adaptive anti-jamming method based on gradient-genetic algorithm

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Journal of Systems Engineering and Electronics 2007年第3期18卷 469-475页

作者： Tao Haihong liao Guisheng Yu Jiang National Key Lab. of Radar Signal Processing Xidian Univ. Xi'an 710071 P. R. China

A novel space-borne antenna adaptive anti-jamming method based on the genetic algorithm （ga）, which is combined with gradient-like reproduction operators is presented, to search for the best weight for pattern synthesis in radio frequency （RF）. Combined, the ga＇s the capability of the whole searching is, but not limited by selection of the initial parameter, with the gradient algorithm＇s advantage of fast searching. The proposed method requires a smaller sized initial population and lower computational complexity. Therefore, it is flexible to implement this method in the real-time systems. By using the proposed algorithm, the designer can efficiently control both main-lobe shaping and side-lobe level. Simulation results based on the spot survey data show that the algorithm proposed is efficient and feasible.

关键词： space-borne antenna genetic algorithm (ga) gradient-like anti-jamming pattern synthesis.

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CZTS基单晶材料研究进展和展望

人工晶体学报 2024年第1期53卷 12-24页

作者：傅文峰朱旭鹏廖峻汝强薛书文张军华南师范大学物理学院广州510006 岭南师范学院物理科学与技术学院湛江524048

Ⅰ_(2)-Ⅱ-Ⅳ-Ⅵ_(4)型半导体铜锌锡硫(CZTS)在成本、组成元素丰度、毒性和稳定性等方面具有突出优势,被认为是一种很有前途的太阳能吸收材料,应用于绿色和经济的光伏领域。尽管Cu_(2)ZnSn(S,Se)_(4)拥有与黄铜矿相似的晶体结构和光电性... 详细信息

Ⅰ_(2)-Ⅱ-Ⅳ-Ⅵ_(4)型半导体铜锌锡硫(CZTS)在成本、组成元素丰度、毒性和稳定性等方面具有突出优势,被认为是一种很有前途的太阳能吸收材料,应用于绿色和经济的光伏领域。尽管Cu_(2)ZnSn(S,Se)_(4)拥有与黄铜矿相似的晶体结构和光电性能,但其转换效率却远远低于Cu(In,ga)Se_(2)(23.5%)。传统研究多数集中在多晶薄膜材料和器件的光电性能,导致材料关键缺陷态甄别及其能带调控规律尚不清晰,成为限制CZTS基光电器件性能的瓶颈。本文综述了CZTS基单晶材料,详细介绍了其晶体结构和物理性质,概述了移动加热器法、碘输运法和熔盐法制备高质量单晶的工艺,多型纳米晶库的研究,以及天然锌黄锡矿的物性研究。根据制备的CZTS基单晶材料讨论了其光学和电学性能。最后总结了CZTS基单晶材料在半导体器件的应用及目前存在的问题,为提高Ⅰ_(2)-Ⅱ-Ⅳ-Ⅵ_(4)型半导体材料器件的性能提供可能的发展方向。

关键词：铜锌锡硫天然锌黄锡矿缺陷态光电性质移动加热器法碘输运法熔盐法

维普期刊数据库博看期刊

Empirical likelihood test for the equality of several high-dimensional covariance mat rices

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Science China Mathematics 2021年第12期64卷 2775-2792页

作者： Guili liao Liang Peng Rongmao Zhang School of Mathematical Science Zhejiang UniversityHangzhou 310027China Department of Risk Management and Insurance Georgia State UniversityAtlantaGA 30303USA

The testing covariance equality is of importance in many areas of statistical analysis,such as microarray analysis and quality *** tests for the finite-dimensional covariance do not apply to high-dimensional data in general,and tests for the high-dimensional covariance in the literature usually depend on some special structure of the matrix and whether the dimension *** this paper,we propose a jackknife empirical likelihood method to test the equality of covariance *** asymptotic distribution of the new test is regardless of the divergent or fixed *** studies show that the new test has a very stable size with respect to the dimension and it is also more powerful than the test proposed by Schott(2007)and studied by Srivastava and Yanagihara(2010).Furthermore,we illustrate the method using a breast cancer dataset.

关键词： covariance matrix empirical likelihood test high-dimensional data χ^(2)-distribution

A Novel Genetic Algorithm for Stable Multicast Routing in Mobile Ad Hoc Networks

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China Communications 2019年第8期16卷 24-37页

作者： Qiongbing Zhang Lixin Ding Zhuhua liao School of Computer Science and Engineering Hunan University of Science and TechnologyXiangtan 411201China School of Computer Wuhan UniversityWuhan 430072China

Data transmission among multicast trees is an efficient routing method in mobile ad hoc networks(MANETs). Genetic algorithms(gas) have found widespread applications in designing multicast trees. This paper proposes a stable quality-of-service(QoS) multicast model for MANETs. The new model ensures the duration time of a link in a multicast tree is always longer than the delay time from the source node. A novel ga is designed to solve our QoS multicast model by introducing a new crossover mechanism called leaf crossover(LC), which outperforms the existing crossover mechanisms in requiring neither global network link information, additional encoding/decoding nor repair procedures. Experimental results confirm the effectiveness of the proposed model and the efficiency of the involved ga. Specifically, the simulation study indicates that our algorithm can obtain a better QoS route with a considerable reduction of execution time as compared with existing gas.

关键词： Quality-of-Service(QoS) multicast genetic algorithm leaf crossover

Multivariable sales prediction for filling stations via ga improved BiLSTM

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Petroleum Science 2022年第5期19卷 2483-2496页

作者： Shi-Yuan Pan Qi liao Yong-Tu Liang Beijing Key Laboratory of Urban Oil and gas Distribution Technology China University of PetroleumBeijing102249China

Accurate sales prediction in filling stations is the basis to fill in the refined oil in time and avoid the outof-stock as much as *** the defect of great“lag”in the general time series model,this paper summarizes the multiple factors that influence the oil sales and develops a multivariable long short-term memory(LSTM)neural network,with the hyper-parameters being improved by the genetic algorithm(ga).To further improve the prediction accuracy,the proposed LSTM neural network is generalized to bidirectional LSTM(Bi LSTM),in which the impact of future factors on present sales can be taken into account by backward ***,different LSTM structures and genetic algorithm parameters are tested to discuss their impact on prediction *** demonstrated that genetic algorithm improved Bi LSTM model is superior to extreme gradient boosting,ARIMA,and artificial neural network,having the highest accuracy of 89%.

关键词： Refined oil Multivariable prediction BiLSTM Genetic algorithm Future influence

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Mini卫生技术评估简介

中国循证医学杂志 2014年第8期14卷 901-904页

作者：黄进张永刚刘钰琪廖玍杜亮四川大学华西医院设备物资部成都610041 四川大学华西医院中国循证医学中心成都610041 四川大学华西临床医学院成都610041 四川大学华西口腔医院口腔疾病研究国家重点实验室成都610041

Mini卫生技术评估(Mini-HTA)是指应用循证医学和传统HTA的原理和方法,基于医院实际需求,对相关卫生技术做出全面系统评价,为医院决策层引入相关卫生技术提供决策参考的工具。本文对其特点进行简要介绍,以期为广大决策者提供新的思路。

关键词： Mini卫生技术评估

Coronavirus Pandemic Analysis Through Tripartite Graph Clustering in Online Social Networks

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Big Data Mining and Analytics 2021年第4期4卷 242-251页

作者： Xueting liao Danyang Zheng Xiaojun Cao Department of Computer Science Georgia State UniversityAtlantaGA 30302USA Suzhou Key Laboratory of Advanced Optical Communication Network Technology School of Electronic and Information EngineeringSoochow UniversitySuzhou 215006China

The COVID-19 pandemic has hit the world *** reaction to the pandemic related issues has been pouring into social platforms,such as *** public officials and governments use Twitter to make policy *** keep close track of the related information and express their concerns about the policies on *** is beneficial yet challenging to derive important information or knowledge out of such Twitter *** this paper,we propose a Tripartite Graph Clustering for Pandemic Data Analysis(TGC-PDA)framework that builds on the proposed models and analysis:(1)tripartite graph representation,(2)non-negative matrix factorization with regularization,and(3)sentiment *** collect the tweets containing a set of keywords related to coronavirus pandemic as the ground truth *** framework can detect the communities of Twitter users and analyze the topics that are discussed in the *** extensive experiments show that our TGC-PDA framework can effectively and efficiently identify the topics and correlations within the Twitter data for monitoring and understanding public opinions,which would provide policy makers useful information and statistics for decision making.

关键词： COVID-19 clustering online social network Twitter

Synthesis and luminescence properties of Mn4+-dopant Ca14Zn6ga10-xAlxO35solid solution

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Progress in Natural Science:Materials International 2018年第3期28卷 301-307页

作者： Yiyang Zhou Weiren Zhao Chongrui Lu Zifeng liao School of Physics and Optoelectronic Engineering Guangdong University of Technology

Mn4+-activated oxide phosphors,owing to their desirable spectral features,eco-friendly and low cost,are emerging as a new class of non-rare-earth red phosphors for warm white ***,these phosphors possess low photoluminescence quantum efficiency excited by blue chip *** we report an isostructural solid solution of Ca14Zn6ga10-xAlxO35:0.15Mn4+（0≤x≤10）synthesized by a traditional solidstate reaction *** microstructure and luminescent performance of this red-emitting phosphor are investigated in detail with the aids of X-ray diffraction,diffuse reflection spectra,photoluminescence spectra/decay/QE,and temperature-dependent PL/QE *** shift of energy peaks of4A2→4T1and4A2→4T2transition is illustrated by the Tanabe–Sugano diagram and the configurational coordinate *** crystal field strength（Dq）and the Racah parameters（B and C）are carefully calculated to estimate the nephelauxetic effectβ*** we achieve external and internal quantum efficiencies as high as26.1%and 40.3%for Ca14Zn6ga6Al4O35:0.15Mn4+excited by 466 nm,the highest one ever reported in Mn4+activated oxide phosphors under the similar condition.

关键词： Crystal phase Quantum efficiency Red emission Blue shift