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Double-loop Control Structure Using Proportional Resonant and Sequence-decoupled Resonant Controllers in Static Coordinates for Dynamic Voltage Restorer

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Chinese Journal of Electrical Engineering 2019年第3期5卷 10-19页

作者： Vu Thai Hung Hongchun Shu Le ngoc Giang Nguyen Duc The School of Electric Power Engineering Kunming University of Science and TechnologyKunming 650500China AD-AF Academy of Viet Nam Son TayHa Noi 100000Viet Nam

Among incidents on grids,the sag/swell voltage is considered as the most frequent *** solve this problem,custom power devices are *** particular,the dynamic voltage restorer(DVR)is a modern and efficient customer *** are used to mitigate voltage sag/swells and harmonics on the load bus,thus protecting the sensitive *** DVR is a serial compensator that applies a voltage to the point of common coupling to maintain the voltage of sensitive load at the nominal *** improve the performance of DVRs,in this study,the control strategy of the two-stage loop circuit is *** external voltage control loop uses a sequence-decoupled resonant(SDR)controller,and the inner current-control loop uses the proportional resonant(PR)controller implemented in the stationary frameαβ.

关键词： Dynamic voltage restorer PR controller SDR controller nonlinear load

Brunner’s gland hyperplasia associated with lipomatous pseudohypertrophy of the pancreas presenting with gastrointestinal bleeding:A case report

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World Journal of Clinical Cases 2021年第31期9卷 9670-9679页

作者： Long Cong Nguyen Khanh Truong Vu Trang Thi Thuy Vo Chau ha Trinh Tan Dang Do ngoc Thi Van Pham Tuyen Van Pham Thanh Tuan Nguyen Hiep Canh Nguyen Jeong-Sik Byeon Gastroenterology and Hepatology Center Bach Mai HospitalHanoi 10000Viet Nam Department of Gastroenterology School of Medicine and PharmacyVietnam National University HanoiHanoi 10000Viet Nam Radiology Center Bach Mai HospitalHanoi 10000Viet Nam Pathology Center Bach Mai HospitalHanoi 10000Viet Nam Department of Human Pathology Kanazawa University Graduate School of MedicineKanazawa 920-8640Japan Department of Gastroenterology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea

BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the *** pseudohypertrophy(LiPH)of the pancreas is an extremely rare *** each condition is rare,the probability of purely coincidental coexistence of both conditions is extremely *** SUMMARY We report a 26-year-old man presenting to our hospital with symptoms of recurrent upper gastrointestinal *** gastrointestinal endoscopy showed a huge pedunculated polypoid lesion in the duodenum with bleeding at the base of the *** examination of the duodenal biopsy specimens showed ***,abdominal computed tomography and magnetic resonance imaging revealed marked fat replacement over the entire pancreas,confirmed by histopathological evaluation on percutaneous pancreatic *** on the radiological and histological findings,LiPH of the pancreas and BGH were *** patient refused any surgical ***,he was managed with supportive *** patient’s symptoms improved and there was no further *** This is the first well-documented case showing the coexistence of LiPH of the pancreas and BGH.

关键词： Lipomatous pseudohypertrophy Pancreas Gastrointestinal bleeding Brunner’s gland Case report

Agrobacterium-Mediated Transformation of Cry8db Gene in Vietnam Sweet Potato Cultivar

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Journal of Life Sciences 2015年第6期9卷 262-271页

作者： Pham Bich ngoc Vu Thi Lan Tran Thu Trang Nguyen Hoai Thuong Le Thu ngoc Chu Hoang ha Le Tran Binh Institute of Biotechnology Vietnam Academy of Science and Technology 18-Hoang Quoc Viet Cau Giay Ha Noi 10000 Vietnam College of Science Thai Nguyen University Tan Thinh Thai Nguyen 23000 Vietnam University of Science and Technology of ha Noi 18-Hoang Quoc Viet Cau Giay Ha Noi 10000 Vietnam

Sweet potato [Ipomoea batatas （L.） Lam.] is an important food crop in the world as well as in Vietnam. It is well known as a recalcitrant crop for gene transformation and tissue culture because of its genotype dependent in vitro responses. In present study, Agrobacterium-mediated transformation of cry8Db from Bacillus thuringiensis into KB 1 sweet potato variety has been studied. The C58cv strain carrying a pBl 121 backbone which contained cry8Db delta-endotoxin gene regulated under 35 S CaMV prom oter, and the selection marker gene, neomycin phosphotransferase （npt11） gene, was subjected for plant transformation. Callus induced from shoot tips and leaf explants were inoculated and cocultured with A. tumefaciens. The selection occurred during callus producing and plant regenerating steps. A total of 201 transgenic putative plant lines were produced, and 21 transgenic lines were positively confirmed by PCR and finalized by Southern blot. Four putative transgenic lines confirming a single copy of the crySEIb gene were transferred into soil pots in greenhouse. Biological activity evaluation for the insecticidal capacity of these transgenic lines under controlled conditions showed that the level of infestation by sweet potato weevils （Cylasformicarius） in untransformed plants was higher than that of transgenic lines.

关键词： Sweet potato Agrobacterium tumefaciens plant transformation cry8Db sweet potato weevil resistance cylas formicarius.

Redislocation Following Zigzag Osteotomy Combined with Fibular Allograt for Dislocation of the Hip in Children

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Open Journal of Orthopedics 2016年第4期6卷 86-97页

作者： Nguyen ngoc Hung National Hospital for Pediatrics Ha Noi Viet Nam

We have reviewed 17 patients (18 hips) who required repeated open reduction for recurrent or persistent dislocation after a previous attempt at zigzag osteotomy combined with fibular allowgraft for developmental dysplasia of the hip (DDH). The purposes of this study were to examine predictors of redislocation and to evaluate the long-term outcomes after revision surgery. The mean age at primary open reduction was 24 months (13 to 36). The median time to the recognition of failure was 4.6 months. The second reduction was performed at a mean age of 26.3 months (17 to 42) and the mean age at final follow-up was 79.7 months (58 to 105) and the mean time follow-up was 42.4 months (37 to 76). We treated the hips with a new open reduction through an anteromedial approach. A constricted anteromedial capsule was always found as the main factor;all had an intact anteromedial capsule, and there was an inverted transverse ligament in five cases and a very tight psoas tendon in another four cases, eversion of the limbus in six cases, densing anterior capsule in five cases. We perform with the condition that all hips were cleared of scar tissue;five hips had adductor tenotomy;four hips required release of the psoas tendon, five eversion of the limbus. Release of the transverse ligament was required in five cases each. All hips with Kirschner wire through the femoral head into the acetabulum. Three hips required femoral shortening (average of 1.5 cm);a derotation varus osteotomy was performed in two hips from ten and twelve weeks after repeated open reduction. Postoperative results according to modified McKay criteria for clinical: excellent: 3 of 18 hips (16.7%);good: 8 of 18 hips (44.4%);fair: 6 of 18 hips (33.3%);and poor: 1 of 18 hips (5.6%). We suggest that technical failure is usually the cause for redislocation with all that has an intact anteromedial capsule. There was an inverted transverse ligament, tight psoas tendon, eversion of the limbus, and densing anterior capsule

关键词： DDH Redislocation Anteromedial Approach Salter Innominate Osteotomy Femoral Shortening

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越南玉米产业发展概况

广东农业科学 2009年第8期36卷 371-372页

作者：张衍荣赵秀娟 DANG ngoc ha 王芳李智军广东省农科院作物研究所广东广州510640 广东科贸职业学院广东广州510430 越南农业科学院

对越南发展玉米的自然条件、玉米发展历程和国家育种、栽培及今后的发展方向进行了介绍和分析,以期为我国开展玉米产业的国际合作提供借鉴。

关键词：越南玉米产业

Enhancement of Performance of Organic Light Emitting Diodes by Using Ti- and Mo-Oxide Nano Hybrid Layers

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Materials Sciences and Applications 2013年第4期4卷 275-280页

作者： Nguyen Nang Dinh Do ngoc Chung Tran Thi Thao Tran Thi Chung Thuy Le ha Chi Vo-Van Truong Department of Physics Concordia University Montreal Canada Institute of Materials Science Vietnamese Academy of Science and Technology Hanoi Vietnam University of Engineering and Technology Vietnam National University Hanoi Hanoi Vietnam Water Resources University Hanoi Vietnam

Nanorod-like TiO2 (nc-TiO2) and MoO3 (nc-MoO3) films were thermally grown from Ti- and Mo-metallic wafers. Nanohybrid films of N,N’-diphenyl-N,N’-bis(1-naphthyl)(1,1’-biphenyl)-4,4’diamine (NPB)/TiO2 and NPB/MoO3 used as anode/hole transport layer (HTL) heterojunctions in blue organic light emission diodes (OLEDs) were prepared by coating NPB onto the nc-TiO2 and nc-MoO3 and TiO2. Characterization of the nanostructured hybrid layers showed that both the photoluminescent property and current-voltage (I-V) characteristics of the hybrid materials were significantly enhanced in comparison with the standard NPB polymer. The electroluminous efficiency of the hybrid devices was considerably enhanced in comparison with the standard device. This suggests a useful application for fabricating “reverse” OLEDs, where the emission light goes-out through the semitransparent cathode, instead of the indium tin oxide (ITO) anode. For this, the ohmic contacts of conducting wires to metallic electrodes can be made much better than to ITO anodes.

关键词： Organic Light Emitting Diodes (OLED) Hybrid Heterojunctions Curent-Voltage (I-V) Characteristic Luminous Efficiency

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越南经济加剧动荡

商业周刊（中文版） 2011年第8期 19-20页

作者： Oanh ha Oiep ngoc Pham 黎力（译）

越南必须设法控制国内通胀率，抑制工资上涨。否则将声誉扫地．人们不会再把这里看作是中国声场之外的一个可靠的外包地。

关键词：越南经济工资上涨通胀率扫地

电针对腰椎间盘突出症的镇痛作用与临床疗效观察

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电针对腰椎间盘突出症的镇痛作用与临床疗效观察

作者：武氏玉河（VO THI ngoc ha）南京中医药大学

学位级别：硕士

目的：观察电针对腰椎间盘突出症患者的镇痛作用与临床疗效。采取电针穴位及单纯针刺的方法,一是通过“腰腿痛功能评分”与"McGill疼痛询问量表”以及“直腿抬高试验”等,评价电针与单纯针刺对腰椎间盘突出症的镇痛作用;二是通过上述评... 详细信息

目的：观察电针对腰椎间盘突出症患者的镇痛作用与临床疗效。采取电针穴位及单纯针刺的方法,一是通过“腰腿痛功能评分”与"McGill疼痛询问量表”以及“直腿抬高试验”等,评价电针与单纯针刺对腰椎间盘突出症的镇痛作用;二是通过上述评分,分析电针与单纯针刺治疗腰椎间盘突出症的临床疗效是否存在差别,为临床治疗腰椎间盘突出症探索有益的治疗方式,并提供有意义的临床依据。方法：本研究以腰椎间盘突出症患者为研究对象,共48例,随机分为电针治疗组(电针组)25例与单纯针刺治疗组(针刺组)23例。两组穴位选取同为患侧夹脊、肾俞和环跳穴。电针组选择患侧腰夹脊、肾俞和环跳穴给予电针干预,采用南京小松医疗仪器研究所XS-998B光电治疗仪,疏密波,强度以患者耐受为度,时间30min。针刺组得气后留针30min,期间每隔10min行针1次。分别治疗1个疗程。以腰腿痛功能评定、简化的McGill疼痛询问量表、直腿抬高试验以及临床疗效判断标准等为观察指标,对其结果进行各自治疗前后及两组间的对比和分析。结果：经治疗1疗程后：①电针组和针刺组腰腿痛功能评分在治疗前后均具有统计学差异(P0.05)。结论：电针及单纯针刺两种干预手段均能有效减轻腰椎间盘突出症患者疼痛等临床症状;在腰腿痛功能评价及直腿抬高试验等两方面电针比单纯针刺治疗具有明显的疗效优势。

关键词：腰椎间盘突出症电针单纯针刺

Hydrocarbon Systems in the North-Eastern Area of the Song Hong Basin

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Journal of Earth Science and Engineering 2013年第12期3卷 807-814页

作者： Trinh Xuan Cuong Phan ngoc Trung Tong Duy Cuong Nguyen Bich ha Phung Lan Phtro'ng Hoang ThiLan Nguyen Hoang Son Vietnam Petroleum Institute Cdu giay Hanoi 10000 Vietnam Exploration and Production Centre Vietnam Petroleum Institute Cdu gidy Hanoi 10000 Vietnam

This paper reports some results of geo-scientific evaluation of the petroleum systems in the northeastern area of the Song Hong Basin offshore Vietnam. Geological-geophysical data, including regional studies, 2D and 3D seismic ＆ logging interpretation results as well as core/cutting samples analysis were integrated to reveals that the north-eastern area were controlled by pull apart activities along Song Hong river fault system, rifting phase during Eocene-Oligocene and subsidence during Miocene-Quaternary. Inversion activities at the end of Oligocene and late Miocene also play very important roles. These activities convert Pre-tertiary carbonate basement rocks to be potential reservoirs. The main source rock, overlying and adjacent to basement highs, was deposited in the lacustrine environment during rifting phase of Eocene and Oligocene and is still at the depth of oil generation window. The mentioned source rock layer is also considered as a good top seal for the basement. Petroleum system has been proven by the drilling and testing results and the studied area become more attractive and have higher chance of success.

关键词： Song Hong carbonate basement lacustrine source rock fracture oil generation.