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IET Cyber-Systems and Robotics 2024年第3期6卷 31-48页

作者： Khanh nguyen Viet Minh Do Duc thanh Cao Duc Tung Lam nguyen School of Electrical and Electronic Engineering Hanoi University of Science and TechnologyHanoiVietnam Vietnam Maritime University HaiphongVietnam

The phenomenon of sloshing causes a significantly negative impact on a wide range of industries.A time‐optimal flatness‐based trajectory planning and Lyapunov‐based model predictive control(LMPC)is proposed for trajectory tracking of a transmitting cylindrical container filled with ***,this research presents an equivalent discrete model based on a mass‐spring‐damper ***,after the flatness of the adopted non‐linear model for 2D is established,time‐optimal trajectories are introduced.A control method called LMPC is shown to solve the problem of orbital tracking,which allows setting limits for state *** addition,to ensure system performance,a linear extended state observer(LESO)is integrated to cope with system ***,the efficiency of the proposed approach for liquid sloshing suppression and tracking is illustrated by simulations.

关键词： control dynamic model motion planning

Some Mean Convergence Theorems for the Maximum of Normed Double Sums of Banach Space Valued Random Elements

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1727-1740页

作者： Andrew ROSALSKY Le Van thanh nguyen Thi THUY Department of Statistics University of FloridaGainesvilleFL 32611-8545USA Department of Mathematics Vinh UniversityVinhNghe AnViet Nam High School for Gifted Students Vinh UniversityVinhNghe AnViet Nam

In this correspondence,we establish mean convergence theorems for the maximum of normed double sums of Banach space valued random *** of the results pertain to random elements which are *** expand and improve a number of particular cases in the literature on mean convergence of random elements in Banach *** of the main contributions of the paper is to simplify and improve a recent result of Li,Presnell,and Rosalsky[Journal of Mathematical Inequalities,16,117–126(2022)].A new maximal inequality for double sums of M-dependent random elements is proved which may be of independent *** sharpness of the results is illustrated by four examples.

关键词： Double sum mean convergence Rademacher type p Banach space Banach space valued random element M-dependent random elements

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基于激光扫描技术的三维模型重建

激光与光电子学进展 2011年第8期48卷 112-117页

作者： nguyen tien thanh 刘修国王红平于明旭周文浩中国地质大学国际合作学院湖北武汉430074 河内矿业与地质大学越南河内130510 地理信息系统软件及其应用教育部工程中心湖北武汉430074 中国地质大学信息工程学院湖北武汉430074 中国地质大学研究生院湖北武汉430074

通过分析三维激光扫描系统获取的点云数据,得到了利用点云数据构建三维模型的技术、方法和流程。介绍了利用地面三维激光扫描仪获取点云数据的过程以及结合RiSCAN PRO软件和Geomagic Studio软件进行建模的方法。对原始测量的点云数据进... 详细信息

通过分析三维激光扫描系统获取的点云数据,得到了利用点云数据构建三维模型的技术、方法和流程。介绍了利用地面三维激光扫描仪获取点云数据的过程以及结合RiSCAN PRO软件和Geomagic Studio软件进行建模的方法。对原始测量的点云数据进行处理(去除噪声,平滑,对多站点数据做拼接配准,提取目标建筑物等)得到正确和完整的目标建筑物的表面信息,然后构建三角网建立它的三维表面模型,最后通过所拍的照片进行纹理映射得到真实的三维模型。实验结果表明,利用上述方法可以有效地处理三维激光扫描获取的点云数据,实现对建筑物快速三维可视化建模。

关键词：激光光学三维激光扫描技术三维建模点云数据处理纹理映射

越南新生儿高胆红素血症与UGT1A1多态性的遗传关联性研究

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越南新生儿高胆红素血症与UGT1A1多态性的遗传关联性研究

作者：阮进成（nguyen tien thanh）广西医科大学

学位级别：硕士

引言:新生儿黄疸是新生儿期最常见的临床表现之一,主要由未结合的高胆红素血症引起。研究发现,非结合胆红素通过肝脏中尿苷二磷酸葡萄糖醛酸转移酶(UDP)的关键酶起作用,结合葡萄糖醛酸形成结合胆红素,再经一系列复杂的过程排出体外。近... 详细信息

引言:新生儿黄疸是新生儿期最常见的临床表现之一,主要由未结合的高胆红素血症引起。研究发现,非结合胆红素通过肝脏中尿苷二磷酸葡萄糖醛酸转移酶(UDP)的关键酶起作用,结合葡萄糖醛酸形成结合胆红素,再经一系列复杂的过程排出体外。近年来,UGT1A1基因突变导致酶活性下降或者缺陷引起高胆红素血症的研究越来越受关注。不同的UGT1A1基因启动子和编码区多态性会导致UGT1A1基因表达量下降或酶活性降低。研究表明,高加索人中最常见的UGT1A1基因多态性是插入突变,即在启动子TATA盒的正常序列A(TA)6TAA中插入一个额外的TA,这意味着(TA)6TAA成为(TA)7TAA。而在亚洲人中,第一外显子的错义突变,尤其是c.211G>A突变是最常见的突变类型。c.211G>A突变即211外显子核苷酸G被A重新放置在UGT1A1基因中,,第71位密码子GGA变成AGA导致Gly被Arg取代(Gly71Arg,G71R)。由此可见,不同种族间与新生儿高胆红素血症相关的UGT1A1基因突变位点存在显著差异。越南社会主义共和国(越南)位于东南亚的中南半岛东部,北与中国广西接壤,也是新生儿黄疸高发地区。目前关于UGT1A1基因突变与越南人群中新生儿高胆红素血症关系的研究尚未见报道,越南与其他国家高胆红素血症新生儿UGT1A1的多态性频率是否存在差异尚不明确,本组对此展开研究,现将结果报道如下。目的:探讨胆红素尿苷二磷酸葡萄糖醛酸转移酶1A1基因启动子TATA盒和编码区第一外显子突变与越南新生儿黄疸的关系。方法:选择2017年1月至2018年6月在越南平顺省综合医院住院治疗的越南籍足月新生儿149例,日龄1～14d,出生体重2.5～4.0kg。根据是否患有高胆红素血症分为病例组(99例)和对照组(无黄疽,50例)。病例组新生儿的临床表现均符合中华医学会儿科学分会于2014年制定的新生儿高胆红素血症诊断标准。两组性别、出生体重、喂养情况比较,差异均无统计学意义(均P>0.05),具有可比性。排除新生儿溶血症、G6PD缺乏、感染、颅内出血、头颅血肿、母乳性黄疸、甲状腺功能低下、红细胞增多症、窒息、缺氧、低出生体重及其他围产因素等病因。本研究所有患儿家属均已签署知情同意书。采用PCR和DNA直接测序法检测两组UGT1A1启动子TATA盒TA数目变异和编码区第一外显子突变频率,比较两组UGT1A1多态性基因型分布及等位基因频率差异,观察病例组UGT1A1基因突变类型及其不同基因型患儿血清清总胆红素水平。结果:(1)检测出的突变频率从高排到低循序分别是:149名新生儿中c.211G>A 突变有 51 列(34,23%);TATA 盒的(TA)7 突变有 14 列(9,4%);c.189C>T 突变为 5 列(3,36%);c.190G>A 突变为 1 列(0.7%);c.378C>T突变为1列(0.7%);c.686C>A也为1例(0.7%)。(2)病例组和对照组c.211G>A(UGT1A1*6)突变等位基因表达频率分别为27.3%和5.0%,两组比较差异有统计学意义(P0.05);病例组和对照组c.189C>T突变等位基因表达频率分别为2.5%和0%,两组比较差异无统计学意义(P>0.05)。(3)病例组c.211G>A纯合子患儿血清总胆红素水平高于无突变及杂合子患儿(P均A是越南新生儿未结合性高胆红素血症的突变热点。UGT1A1 c.211G>A突变不仅与越南新生儿未结合高胆红素血症的发病风险有关而且与高胆红素血症严重程度呈正相关。

关键词：越南 UGT1A1 新生儿黄疸未结合型高胆红素血症尿苷二磷酸葡萄糖醛酸转移酶1A1 基因突变

A comparative study on kinetics and dynamics of two dump truck lifting mechanisms using MATLAB simscape

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Theoretical & Applied Mechanics Letters 2024年第2期14卷 146-156页

作者： Thong Duc Hong Minh Quang Pham Son Cong Tran Lam Quang Tran Truong thanh nguyen Faculty of Transportation Engineering Ho Chi Minh City University of Technology(HCMUT)Ho Chi Minh City 700000Vietnam Vietnam National University Ho Chi Minh City(VNU-HCM) Ho Chi Minh City 700000Vietnam Industrial Maintenance Training Center Ho Chi Minh City University of Technology(HCMUT)Ho Chi Minh City 700000Vietnam

In this paper,two lifting mechanism models with opposing placements,which use the same hydraulic hoist model and have the same angle of 50°,have been *** mechanical and hydraulic simulation models are established using MATLAB Simscape to analyze their kinetics and dynamics in the lifting and holding *** simulation findings are compared to the analytical calculation results in the steady state,and both methods show good *** the early lifting stage,Model 1 produces greater force and discharges goods in the container faster than Model ***,Model 2 reaches a higher force and ejects goods from the container cleaner than its counterpart at the end lifting *** established simulation models can consider the effects of dynamic loads due to inertial moments and forces generated during the system *** is crucial in studying,designing,and optimizing the structure of hydraulic-mechanical systems.

关键词： Dump truck Lifting mechanism Hydraulic MATLAB Simscape Kinetic dynamic analysis

越南格子办公楼SRDP-IWMC Office

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设计 2015年第12期28卷 36-37页

作者： Jacob nguyen tien thanh.

这栋办公楼位于越南河静省的城市中心地区。这条街道上还修建了很多政府办公楼，SRDP-1WMC河在这座建筑设计之初，修建办公楼的总成本就受到了限制，办公楼里面的家具在将来应该尽量的进行重复使用。天气情况的变化是项目设计过程中应... 详细信息

这栋办公楼位于越南河静省的城市中心地区。这条街道上还修建了很多政府办公楼，SRDP-1WMC河在这座建筑设计之初，修建办公楼的总成本就受到了限制，办公楼里面的家具在将来应该尽量的进行重复使用。天气情况的变化是项目设计过程中应该特别注意的问题，这里受河静省城乡地区的综合影响。此外，快速的城镇化打破了农村地区的平衡。农耕土地面积减少了，这对当地社区稳定的生活方式带来了很严重的影响。这个三层楼高的建筑单元的方向是东西向，两层楼的上层楼面覆盖着一层格子结构．格子里面种满了植物和庄稼，我们称之为垂直的田地。建筑结构由边长为400毫米的混凝土砖构成，这些混凝土砖垂直的堆叠在一起，包围着全部的内部工作空间。灌溉系统整合在两个单元的连接处，使当地城市和天气问题，比如噪音、空气污染、过热和台风的影响降到了最低水平。同时这个农业友好的工作环境为使用者们创造了一个不同的生活体验，因为他们可以在这里自己种植蔬菜。

关键词：政府办公楼格子结构越南建筑设计天气情况混凝土砖市中心地区重复使用

局部空间自相关及其在勘探地球化学中的空间聚集研究

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物探与化探 2014年第2期38卷 370-376页

作者： nguyen tien thanh 刘修国任泽中国地质大学信息工程学院湖北武汉430074 河内矿业与地质大学测绘学院越南河内130510

运用局部空间自相关Moran的Ii和G*i指数,研究8 130 km2区域内采集的1∶20万水系沉积物1 482个组合样点的空间聚集情况,与基于稳健统计学的地球化学异常下限确定方法所圈定的异常范围对空间聚集范围进行对比。结果表明,局部Ii指数能够很... 详细信息

运用局部空间自相关Moran的Ii和G*i指数,研究8 130 km2区域内采集的1∶20万水系沉积物1 482个组合样点的空间聚集情况,与基于稳健统计学的地球化学异常下限确定方法所圈定的异常范围对空间聚集范围进行对比。结果表明,局部Ii指数能够很好地探测出程度较弱和范围较小的空间聚集,局部G*i指数适合于程度较强和范围大的高高聚集探测,所探测出的空间聚集范围较大。使用该方法所发现的地球化学空间聚集范围和程度符合客观实际,与已知矿床(点)吻合很好。

关键词：局部Moran的Ii指数局部G*i指数空间聚集勘探地球化学

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Cheering餐厅——越南餐厅

国际纺织品流行趋势 2017年第4期 148-155页

作者： nguyen tien thanh 高红代胜棋 H&P Architects

位于河内市中心的Cheering餐厅是由一个长期废弃的项目翻新而来的，它保留了钢架结构和可重复利用的遮盖物，如玻璃、钢铁、钢条、钢片顶等。河内人民在人行道上的很多日常活动，

关键词：餐厅越南可重复利用钢架结构市中心人行道钢条

Development of an experimental method for well-controlled blast induced traumatic limb fracture in rats

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Defence Technology（防务技术） 2024年第4期34卷 168-176页

作者： Luyang Xu Xiancheng Yu Clement DFavier Ibidumo Igah Thuy-tien nguyen Warren Macdonald Anthony MJ.Bull Centre for Blast Injury Studies Imperial College LondonLondonUnited Kingdom Department of Bioengineering Imperial College LondonLondonUnited Kingdom Dyson School of Design Engineering Imperial College LondonLondonUnited Kingdom Department of Trauma and Orthopaedics Royal Free London National Health Service Foundation TrustLondonUnited Kingdom

Heterotopic ossification(HO)is a consequence of traumatic bone and tissue damage,which occurs in 65%of military casualties with blast-associated ***,the mechanisms behind blast-induced HO remain *** models are used to study blast-induced HO,but developing such models is challenging,particularly in how to use a pure blast wave(primary blast)to induce limb fracture that then requires an *** studies,including our recent study,have developed platforms to induce limb fractures in rats with blast loading or a mixture of blast and impact ***,these models are limited by the survivability of the animal and repeatability of the *** this study,we developed an improved platform,aiming to improve the animal's survivability and injury repeatability as well as focusing on primary blast *** platform exposed only one limb of the rat to a blast wave while providing proper protection to the rest of the rat's *** obtained very consistent fracture outcome in the tibia(location and pattern)in cadaveric rats with a large range of size and ***,the rats did not obviously move during the test,where movement is a potential cause of uncontrolled *** further conducted parametric studies by varying the features of the design of the *** factors,such as how the limb is fixed and how the cavity through which the limb is placed is sealed,significantly affect the resulting *** platform and test setups enable well-controlled limb fracture induced directly by pure blast wave,which is the fundamental step towards a complete in vivo animal model for blast-induced HO induced by primary blast alone,excluding secondary and tertiary blast *** addition,the platform design and the findings presented here,particularly regarding the proper protection of the animal,have implications for future studies investigating localized blast injuries,such as blast induced brain and lung injuries.

关键词： Blast injury Biomechanics Heterotopic ossification Limb fracture Blast wave Animal model

Influence of different land-use types on selected soil properties related to soil fertility in A Luoi District,Thua Thien Hue,Vietnam

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Soil Ecology Letters 2024年第1期6卷 131-140页

作者： Khoa Phuc nguyen Tan Trong Tran Huy Dinh Le Phuong Thuy nguyen Hien Thao Thi Pham Dien thanh nguyen Ngu Huu nguyen University of Agriculture and Forestry Hue UniversityHue CityThua Thien Hue 52000Vietnam School of Biotechnology Tan Tao UniversityTan Duc ECityDuc HoaLong An850000Vietnam

Land use type affects the physicochemical properties of *** value of OM and TN is high in acacia *** acidity of soil is considered a serious constraint for *** cash crops are acacia,cassava,banana,rice and *** fertility is affected by land-use types and land management,which exacerbates soil erosion and various other forms of soil degradation in the mountainous regions of *** study was conducted in A Luoi District,Thua Thien Hue,Vietnam to identify the effects of land-use types on specific soil physicochemical characteristics related to soil *** physicochemical properties,such as organic matter(OM),total nitrogen(TN),total phosphorous(TP),and K+were significantly affected by land-use *** results showed that the soils were sandy in rice but clay loam for acacia and *** mean bulk density value of acacia soil was significantly greater than that of other *** were higher in the acacia soils than those in the rice,maize,and banana *** OM content was significantly higher in the acacia,cassava,and banana soils than those in the rice and maize *** mean of exchangeable K+in the rice soil was higher compared to those in other soils and was affected by land-use *** high exchangeable acidity content in the soils was probably due to intensive ***,both land use type and management did not affect the CEC ***,the inappropriate land use caused the disturbance of soil physicochemical properties,indicating that the conditions of rice and maize soils are becoming worse than acacia ***,lowering the intensity of cultivation,adopting incorporated soil fertility management,and applying organic fertilizer should preserve the existing conditions and enhance soil properties.

关键词： Land-use types soil characteristics soil frility suitable crop Vietnam