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基于BP神经网络的手绘电路图形符号识别技术

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中国制造业信息化（学术版） 2009年第7期38卷 47-50页

作者：郑晓晨汪木兰 Hung T.nguyen 悉尼科技大学南京工程学院先进数控技术江苏省高校重点建设实验室江苏南京211167

首先介绍了手绘电路图形符号扫描输入和图像信息去噪压缩处理方法,并离散化成标准的二维矩阵形式。然后引入一个三层前馈型BP神经网络,采用Delta迭代训练算法,学习图像矩阵输入与元件符号输出之间的映射关系,并着重阐述了神经网络学习... 详细信息

首先介绍了手绘电路图形符号扫描输入和图像信息去噪压缩处理方法,并离散化成标准的二维矩阵形式。然后引入一个三层前馈型BP神经网络,采用Delta迭代训练算法,学习图像矩阵输入与元件符号输出之间的映射关系,并着重阐述了神经网络学习的过拟合问题。最后通过MATLAB编程仿真和交叉验证表明,提出的BP神经网络结构及其训练算法合理、有效和实用。

关键词：手绘电路图形符号 BP神经网络模式识别 MATLAB

Patterns of hepatitis B virus exposure and associated predictors in Vietnam: A crosssectional study

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Asian Pacific Journal of Tropical Medicine 2020年第12期13卷 535-541页

作者： Minh C.Duong Phuc V.D.Le Oanh N.K.Pham Hien D.T.Pham Toan B.nguyen Hai T.Phan School of Public Health and Community Medicine University of New South WalesSydneyNew South WalesAustralia MEDIC Medical Center Ho Chi Minh CityVietnam Hospital for Tropical Diseases Ho Chi Minh CityVietnam Pham ngoc Thach University of Medicine Ho Chi Minh CityVietnam

Objective:To examine the magnitude of isolated anti-HBc and other HBV serological patterns and associated predictors among adults seeking general health check-up at a large health center in ***:All 564 outpatients seeking general health checkup between January 2016 and December 2016 were asked to undertake HBV surface antigen,surface antibody,IgG and IgM core antibody(anti-HBc total),platelet counts,and liver function *** administered questionnaire was used to collect information regarding demography,in-house sources of infection,lifestyle,health condition and treatment,and HBV ***:Male gender(P=0.043),age(P=0.000),living in urban areas(P=0.040),HBV vaccination status(P=0.033),and ALT(P=0.040) were associated with isolated *** infection was associated with HBV vaccination status(P=0.001),ALT levels(P=0.010),AST levels(P=0.020),and platelet counts(P=0.007).Past/resolved HBV infection was associated with AST levels(P=0.005),ALT levels(P=0.014),and age(P=0.000).Conclusions:Isolated anti-HBc is quite *** of isolated anti-HBc include male gender,living in rural areas,and HBV *** prevalence of isolated anti-HBc also increases with *** timely detect occult HBV infection and prevent transmission,anti-HBc testing should be included in the health check-up for high risk individuals and screening program where HBV nucleic acid test is not *** prevent transmission,clinicians need to pay more attention on those who are at risk of having isolated anti-HBc and closely follow-up patients with isolated anti-HBc and educate them about the prevention of HBV infection.

关键词： prevention seeking Vietnam

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东京金花茶百余年后的重新发现(英文)

植物分类与资源学报 2014年第5期36卷 585-589页

作者：杨世雄 nguyen Hieu 赵东伟税玉民中国科学院昆明植物研究所东亚植物多样性与生物地理学重点实验室云南昆明650201 越南科学与技术联合会植物保育中心

东京金花茶一百多年后在越南北部被重新发现,该种是***根据*** 1887年采自越南巴维山的标本于1910年描述发表的。本文对该种的花部特征进行了补充描述并提供了它的新分布点信息。

关键词：东京金花茶 ngoc Son-Ngo Luong自然保护区重新发现越南

The Changes of Water Quality in Space and Time in the Mekong River, Bassac River and Adjacent Waterways

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Journal of Life Sciences 2014年第6期8卷 481-488页

作者： Luu Duc Dien Ma Tu lan nguyen Dinh Hung Research Institute for Aquaculture No. 2 116 Nguyen Dinh Chieu Street District 1 Hochiminh City 70000 Vietnam

Catfish (Pangasianodon hypophthalmus) farming along Mekong river and Bassac river depends heavily on water quality of the two rivers, whereas water quality of these rivers are affected by the waste of aquaculture activities, agricultural production, industrial and municipal waste. This report analyzes the monitoring data on Mekong river, Bassac river and adjacent waterways in the period of 2011-2012, focusing on parameters of organic pollution to assess the current quality of these two rivers. Based on the results, the water quality in the river-head was generally better than in the middle and at the end of the river, and the quality of water of the Mekong river was better than Bassac river. In terms of time, water quality in July was considered the best in all the basins. At adjacent natural rivers and canals, ammonia levels increased and exceeded the Vietnamese standard in April, and BOD values were also much higher compared to two major rivers. The results of the model also showed that the levels of pollution index of the Mekong and Bassac river were very low (1.33 and 1.47), and the values (Y) in the canals were higher (1.63-1.67) but still in permitted level. Therefore, the water quality of the Mekong and Bassac river in the period 2011-2012 was generally still quite good.

关键词：湄公河水质时间天然河流空间水道水产养殖城市废弃物

Antibacterial and Antioxidant Activity of Rhodomyrtus Tomentosa and Cinnamomum Zeylanicum Crude Extracts

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Veterinary Science Research 2021年第1期3卷 12-16页

作者： Tran Thi Quynh lan Vu Manh Khiem nguyen Van Tin Departement of Veterinary Biosciences Animal Science and Veterinary MedicineNong Lam UniversityHCM CityVietnam

The aim of this study was to investigate the extraction method for ***mentosa and *** leaves and the evaluation of antibacterial and antioxidant activities of crude *** results of the study showed that the active ingredients of crude extracts were clearly separated by Thin-layer chromatography and the presence of rhodomyrtone in *** crude extract and cinnamaldehyde in *** crude ex*** crude extract was antibacterial activity against Staphylococcus aureus with 13.1 mm of inhibition zone,but is not effective against Salmonella *** leaf extract did not show antibacterial activity on both *** and *** a dilution of 1/2 of the *** crude extract can completely inhibit *** *** study also indicated the presence of antioxidant compounds such as flavonoids,tannins,phenols and terpenoids in *** and *** crude *** results showed that *** and *** crude extracts should be used as a biotherapy alternative to antibiotic ***,further study would be needed to investigate the antibacterial activity of crude extracts in vivo.

关键词： Antibacterial and antioxidant activity Minimal inhibitory concentrations(MICs) Crude extracts

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唤醒空间!城市生态阳台,河内,越南

世界建筑 2020年第10期 100-105,136页

作者：无 An Viet Dung Roberto Iannetti Pham ngoc Linh An Thanh Nhan Nelly Agliardi Quach Hai Linh Bui Huu Tung Le Van Tung Do Thi Hien nguyen Phi Hung Due Chu Bang Thanh 天妮(译) nguyen Thai Thach(摄影) Quang Tran(摄影) 耕种建筑师事务所不详

我们是来自越南及意大利的青年建筑师团队,在越南开设了一家建筑工作室。2016年10月,我们在河内租赁了一个办公空间。在了解河内市周边环境后,我们发现,可能由于市区里的灰尘、噪音和防盗等问题,这里有很多阳台都未被实际使用。市民几... 详细信息

我们是来自越南及意大利的青年建筑师团队,在越南开设了一家建筑工作室。2016年10月,我们在河内租赁了一个办公空间。在了解河内市周边环境后,我们发现,可能由于市区里的灰尘、噪音和防盗等问题,这里有很多阳台都未被实际使用。市民几乎不与外部环境或附近的邻居互动。我们把那些阳台称为沉寂空间。

关键词：青年建筑师办公空间建筑工作室阳台河内外部环境越南

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越南城市固体废物管理所面临的挑战

中国-东盟研究 2019年第2期 118-128页

作者：阮氏芳兰陈艳阳(译) 越南水利大学(TLU)化学与环境学院广西大学国际学院

固体废物处理,包括城市固体废物(MSW)的处理,是包括越南在内的世界大部分城市所面临的一项重大挑战。由于缺乏有效的管理程序、法规和政策,这些废物带来的传染病和恶臭正在引发严重的健康危机,同时引发如水污染、土壤污染和空气污染等... 详细信息

固体废物处理,包括城市固体废物(MSW)的处理,是包括越南在内的世界大部分城市所面临的一项重大挑战。由于缺乏有效的管理程序、法规和政策,这些废物带来的传染病和恶臭正在引发严重的健康危机,同时引发如水污染、土壤污染和空气污染等环境问题。本文的主要目的是介绍越南城市固体废物管理的主要现状和面临的挑战,并提出应对建议,以改善和提升越南的废物管理系统和人民生活品质,越南水利大学(TLU)化学与环境学院,讲师。

关键词：城市固体废物露天固体废物堆填区堆肥焚烧回收

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《金云翘传》中文翻译刍议

广西民族大学学报（哲学社会科学版） 2008年第2期30卷 162-167页

作者：赵玉兰北京大学东语系

分析了18世纪末至19世纪初越南著名诗人阮攸的一部传世杰作《金云翘传》中译的难处,指出了两个中译本存在的问题,提出了《金云翘传》中译译者所需具备的条件,并期待较为理想的《金云翘传》中译本。

关键词：阮攸《金云翘传》中文翻译文化内涵

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摘要先天性心脏病、瓣膜病、血管病介入治疗

中国循环杂志 1999年第S1期 103-103页

作者： Vietnam Heart Institute , Hanoi , Vietnam . Pham Gia Khai, Pham Manh Hung , Tran Quang Tuan , Tran Van Duong , nguyen lan Hieu , nguyen Quang Thai, Do Doan Loi , nguyen lan Viet. The University of Chicago Hospital and Clinics , USA Ted Feldman .(

Objective : We here by report the im mediate results of our first 50 attempts of Percutaneous Mitral Valvuloplasty (PMV) using Inoue balloon in Vietnam- The mean age was (35 ±15) years- The gender :44 females and 6 males- 40 were in sinus rhythm and 10 presented with atrialfibrillation- The mean total echo score was 6-7 ±3-5 and the majority was in functional class ( NYHA) Ⅲ/ Ⅳ(85 % )- Results :The procedure wastechnically successfulin 47 patients (94 % )- PMVresulted in significantimprovementin hemodynamic values :the mean left atrial pressure fellfrom (25 ±9) m m Hg to (12 ±5) m m Hg ( p < 0-001) ,the mean transmitral gradientfrom (20 ±8) m m Hg to (4 ±3) m m Hg ( p < 0-001) ,and the mean pulmonary pressure fellfrom (45 ±15) m m Hgto (30 ±10) m m Hg ( p < 0-001)- The mitral valve area ( MVA) on 2D echo cardiogram increased significantly from (0-7 ±0-4) cm 2to (1-5 ±0-5) cm 2( p < 0-001) , and similar MVA was obtained on echo Doppler (0-75 ±0-3) cm 2to (1-55 ±0-4) cm2- There was one case with failure to crossthe mitral valve orifice with Inoue balloon- There were two tamponades- The first,in a patientto whom PMV was stopped- The patient underwentsuccessfulclosed heart comissurotomy right afterthe pericardial tamponade subsided and his general status stabilized- The second case also had pericardial effusion drained and reperfused ,and PMV was performed successfully in the catheterization laboratory when the tamponade had subsided and cardiovascular status normalized- We met one case with increasing MR post PMV(grade Ⅲ)- Transient cerebral event occurred in one patient who fully recovered 2 days later- Conclusion : The acute results ofthis series attest to the effectiveness and usefulness of PMV with Inoue balloon in Vietnam-

关键词：血管病血管疾病疾病摘要瓣膜病先天性心脏病心脏先天畸形介入治疗