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基于机器视觉的物流包装条码特征快速提取与识别方法研究

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物流科技 2024年第8期47卷 43-46,58页

作者：欧阳世波王磊张清友红云红河烟草(集团)有限责任公司物流中心云南昆明650000

随着技术的进步,特别是机器视觉技术的迅猛发展,条码的读取与识别已经不再依赖于传统的条码扫描器。机器视觉为条码的快速、准确和自动化读取提供了新的技术路径。然而,复杂的物流环境、不同的包装材料以及各种环境因素(如光线、遮挡)... 详细信息

随着技术的进步,特别是机器视觉技术的迅猛发展,条码的读取与识别已经不再依赖于传统的条码扫描器。机器视觉为条码的快速、准确和自动化读取提供了新的技术路径。然而,复杂的物流环境、不同的包装材料以及各种环境因素(如光线、遮挡)会影响机器视觉系统的性能。文章对基于机器视觉的物流包装条码特征快速提取与识别方法展开深入研究,以期为实际物流场景中的条码识别提供一种更为高效和准确的技术手段。

关键词：机器视觉物流包装条码条码特征快速提取

Intercalated MXene-based layered composites:Preparation and application

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Chinese Chemical Letters 2020年第4期31卷 961-968页

作者： Shumeng Wu He Wang Li Li Meixia Guo Zhichong Qi qingyou zhang Yanmei Zhou Henan Joint International Research Laboratory of Environmental Pollution Control Materials College of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004China

Combining high conductivity,hydrophilicity and excellent electrochemical perfo rmance in one,MXe nes have attracted increasing attention since their ***,easy to stack caused by the van der Waals’force between the layers limits their practical ***,intercalating other substances between layers of MXe nes and getting intercalated MXene-based layered composites(IMLCs)with open structure can improve their physical and chemical properties *** available surface helps expose more active sites and enlarged layer spacing facilitates ion *** addition,other substances fixed in the interlayers by MXenes’two-dimensional confinement effect can produce synergistic effect and expand their applicable range *** review is dedicated to summarizing the preparation methods and applications of IMLCs,emphasizing the advantages of them in the fields of energy storage,catalysis,sensors,electromagnetic interference(EMI)shielding and ***,prospects and further developments in these gratifying fields are also commented.

关键词： MXenes Layered composites Energy storage Catalysis Sensors EMI shielding Biomedicine

Estimation of Enthalpy of Formation Using Benson’s Group Addition and Functional Group Correction

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Chemical Research in Chinese Universities 2023年第2期39卷 296-304页

作者： LI Xianlan LUAN Yue LU Yanhua LI Wei MA Lihong zhang qingyou PANG Aimin Henan Engineering Research Center of Industrial Circulating Water Treatment Henan Joint International Research Laboratory of Environmental Pollution Control MaterialsHenan UniversityKaifeng475004P.R.China Science and Technology on Aerospace Chemical Power Laboratory Hubei Institute of Aerospace ChemotechnologyXiangyang441003P.R.China Laboratory&Equipment Managements Service Dalian University of TechnologyDalian116024P.R.China

The enthalpies of formation of solid organic compounds containing carbon,nitrogen,oxygen,and hydrogen were estimated using two suggested descriptor sets,separately,by machine learning *** two descriptor sets are both composed of descriptors of Benson’s groups and corrected *** main differences between them are that one is generated based on atoms and the other is based on *** in-house program was specially written in Java to extract all the descriptors with a function to ensure that each atom(or bond)of a molecule is represented by Benson’s groups once for an atom-based(or bond-based)descriptor *** linear regression and partial least squares were used,separately,to build models to predict the enthalpy of formation for two descriptor *** combination of the models constructed by two descriptor sets based on the atoms and the bonds achieved the best-predicted results in this paper,and the corresponding results of the test set are better than that in the literature,from which the original data were ***,a small data set of fluorinated molecules was collected,and satisfactory results were also obtained for these molecules containing fluorine with the assistance of the former data set.

关键词： Enthalpy of formation Group contribution method Benson’s group Multiple linear regression Partial least square

达诺瑞韦联合拉维达韦治疗慢性丙型肝炎患者疗效研究

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实用肝脏病杂志 2024年第5期27卷 693-696页

作者：莫伟斌张清友黄晓涵欧阳婉爱广州医科大学附属广州第八医院肝病科广州市510000 广州医科大学附属广州第八医院门诊部广州市510000 广州医科大学附属第一人民医院感染病科广州市510000 深圳市人民医院肝病科

目的观察应用达诺瑞韦联合拉维达韦治疗慢性丙型肝炎(CHC)患者的疗效。方法2021年1月~2023年1月我院收治的CHC患者84例,被分为对照组42例和观察组42例,分别给予聚乙二醇干扰素-α2b联合利巴韦林治疗12 w或给予达诺瑞韦联合拉维达韦治疗1... 详细信息

目的观察应用达诺瑞韦联合拉维达韦治疗慢性丙型肝炎(CHC)患者的疗效。方法2021年1月~2023年1月我院收治的CHC患者84例,被分为对照组42例和观察组42例,分别给予聚乙二醇干扰素-α2b联合利巴韦林治疗12 w或给予达诺瑞韦联合拉维达韦治疗12 w,停药后随访24 w。使用全自动病毒载量分析系统检测血清HCV RNA载量,记录快速病毒学应答(RVR)、治疗结束时病毒学应答(ETVR)、持续病毒学应答(SVR12)和复发率。采用ELISA法检测血清肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)和IL-10水平。结果观察组RVR、ETVR和SVR12分别为64.2%、100.0%和100.0%,均显著高于对照组的42.8%、69.0%和54.8%(P<0.05);在治疗结束24 w时,观察组无病情复发病例(0.0%),而对照组复发6例(14.2%,P<0.05);在治疗结束时,观察组血清ALT和AST水平分别为(32.5±8.4)U/L和(33.8±8.6)U/L,均显著低于对照组【分别为(54.2±8.7)U/L和(53.5±7.1)U/L,P<0.05】;观察组外周血WBC和PLT计数及Hb水平分别为(5.6±0.7)×10^(9)/L、(108.1±18.9)×10^(9)/L和(113.7±16.2)g/L,均显著高于对照组【分别为(3.5±0.6)×10^(9)/L、(82.5±16.7)×10^(9)/L和(96.8±13.9)g/L,P<0.05】;观察组血清TNF-α、IL-6和IL-10水平分别为(5.4±0.4)ng/L、(15.6±3.7)ng/L和(64.3±12.7)ng/L,均显著低于对照组【分别为(9.0±0.5)ng/L、(22.9±4.0)ng/L和(125.4±24.3)ng/L,P<0.05】;在治疗期间,观察组不良反应发生率为14.2%,显著低于对照组的33.3%(P<0.05)。结论应用达诺瑞韦联合拉维达韦治疗CHC患者能较快地清除病毒,抗病毒治疗疗效好,近期复发率低。

关键词：慢性丙型肝炎达诺瑞韦拉维达韦病毒学应答治疗

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Clinical features and management of postural tachycardia syndrome in children： a single-center experience

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Chinese Medical Journal 2014年第21期127卷 3684-3689页

作者： Li Jiawei zhang qingyou Hao Hongjun Jin Hongfang Du Junbao Department of Pediatrics Peking University First Hospital Beijing 100034 China Department of Neurology Peking University First Hospital Beijing 100034 China

Background The incidence of postural tachycardia syndrome （POTS） has been increasing in children and adolescents,while clinical characteristics of POTS in the pediatric population are not fully *** An observational study was performed in 150 pediatric patients aged between 5 and 18 years who underwent head-up tilt test （HUTT） with the diagnosis of POTS at Peking University First Hospital from March 2008 to August *** data,clinical presentation,autonomic parameters,laboratory findings,and treatments were *** POTS in children commonly occurred in the age of 7-14 *** （84.00％） was the most common symptom,followed by weakness （72.00％） and orthostatic syncope （62.67％）.Positive family history of orthostatic intolerance （Ol） was found in 24.64％ of children with *** 33.09％ of them had preceding infection history as precipitating *** percent of them suffered from orthostatic *** status was documented in 51.28％ of 39 patients who were tested for the standing norepinephrine *** than half of POTS patients,with 24-hour urinary sodium level ＜124 mmol/24 hours,were suitable for treatment of salt *** least 25.74％ of POTS patients were of positive acetylcholine receptor （AChR） *** iron storage in children with POTS was relatively *** patients responded well to treatments,43.51％ of patients recovered,while 7.63％ of them had relapse after symptoms *** POTS is a relatively common condition with complex pathophysiology and heterogeneous clinical manifestation.A comprehensive therapeutic regimen is recommended for the treatment.

关键词： postural tachycardia syndrome children orthostatic intolerance

Genome-wide CRISPR screening reveals key genes and pathways associated with 20-hydroxyecdysone signal transduction in the silkworm(Bombyx mori)

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Insect Science 2024年第1期31卷 47-58页

作者： Hao Sun Jingya Chen Ruolin Wang Dan Liu Na zhang Tong zhang Ling Jia Sanyuan Ma qingyou Xia State Key Laboratory of Silkworm Genome Biology Southwest UniversityChongqingChina Biological Science Research Center Southwest UniversityChongqingChina

Metamorphosis is a complex developmental process involving multiple pathways and a large number of genes that are regulated by juvenile hormone(JH)and 20-hydroxyecdysone(20E).Despite important progress in understanding various aspects of silkworm biology,the hormone signaling pathway in the silkworm remains poorly ***-wide screening using clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)-based libraries has recently emerged as a novel method for analyzing genome function,enabling further research into essential genes,drug targets,and virus-host ***,we constructed a genome-wide CRISPR/Cas9-based library of the silkworm(Bombyx mori)and successfully revealed the genes involved in biotic or abiotic stress factor *** this study,we used our silkworm CRISPR library and large-scale genome-wide screening to analyze the key genes in the silkworm 20E signaling pathway and their mechanisms of *** annotation showed that 20E regulates key proteins in processes that mainly occur in the cytoplasm and *** enrichment analysis showed that 20E can activate phosphorylation and may affect innate immunity,interfere with intracellular nutrition and energy metabolism,and eventually cause cell *** screening results were experimentally validated by generating cells with knockout alleles of the relevant genes,which had increased tolerance to *** findings provide a panoramic overview of signaling in response to 20E in the silkworm,underscoring the utility of genome-wide CRISPR mutant libraries in deciphering hormone signaling pathways and the mechanisms that regulate metamorphosis in insects.

关键词： CRISPR/Cas9 CRISPR library screening ecdysone 20E signal transduction silkworm whole genome editing

Kawasaki disease shock syndrome: A report of two cases and literature review

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Pediatric Investigation 2019年第2期3卷 81-85页

作者： qingyou zhang Ying Liao Junbao Du Department of Pediatrics Peking University First HospitalBering 100034China

Importance:Kawasaki disease shock syndrome (KDSS) is a rare Kawasaki disease (KD) *** pediatricians are not aware of the full range of clinical characteristics of ***:We aimed to investigate the clinical features,diagnosis and treatment of KDSS in two patients and we included a literature ***:We collected and analyzed the clinical data for two patients with ***,using 'Kawasaki diseases shock syndrome' as a key phrase,we searched PubMed,Biotechnology Information and Wanfang Data Knowledge Service Platform databases for any similar reports between January 2009 and March ***:Both of our patients diagnosed with KD developed sustained hypotension during the course of intravenous immunoglobulin treatment,as well as hypoalbuminemia,and increased C-reactive protein and brain natriuretic peptide levels during *** patients responded well to fluid resuscitation and inotropic *** aneurysms formed in either patient during *** reviewed two related studies in Chinese and 11 studies in ***:KD may present with severe shock,and requires proper diagnosis and rapid *** prognosis for most patients with KDSS is excellent.

关键词： Brain natriuretic peptide Children Kawasaki disease Shock

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在局域网上组建视听网络课室

中国电化教育 2002年第8期 76-78,79页

作者：张庆有广州市广东外语外贸大学教育技术中心 510420

所谓视听网络课室就是运用网络功能实现视频、音频点播并且具有交互功能及数据库处理的网络.也就是说,组建视听网络课室必须考虑的问题有:(1)硬件环境;(2)软件环境;(3)相应的课件.

关键词：硬件配置操作系统局域网视听网络课堂

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川崎病诊断中的若干问题

中华实用儿科临床杂志 2020年第13期35卷 961-964页

作者：张清友杜军保北京大学第一医院儿科 100034

川崎病是一种急性自限性的中型动脉血管炎,目前已经成为发达国家最常见的小儿获得性心脏病的病因。如果不能得到及时的诊断及治疗,约25%的患儿会出现严重的冠状动脉病变。由于川崎病缺乏特异性的诊断手段,诊断川崎病主要依赖于临床诊断... 详细信息

川崎病是一种急性自限性的中型动脉血管炎,目前已经成为发达国家最常见的小儿获得性心脏病的病因。如果不能得到及时的诊断及治疗,约25%的患儿会出现严重的冠状动脉病变。由于川崎病缺乏特异性的诊断手段,诊断川崎病主要依赖于临床诊断标准,因此,对于典型的川崎病诊断不难,但对于表现不完全和不典型的川崎病诊断却面临极大的挑战,尤其是在目前全世界都面临的新型冠状病毒流行情况下,使川崎病的诊断更为复杂。本文结合最近美国心脏病协会发表的川崎病诊治指南,对川崎病诊断中的热点问题给予详细的阐述,希望能对川崎病患儿的诊断有所帮助。

关键词：川崎病诊断儿童