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Study on Reproductive Performance of Terapon jarbua(Forsskal,1775)in Tam Giang-Cau Hai Lagoon Systems,Thua Thien Hue Province

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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 93-97页

作者： Le Thi Nhu Phuong nguyen Quang linh Ha Long University Uong Bi City 200000Quang Ninh ProvinceVietnam Institute of Biotechnology Hue UniversityPhu ThuongPhu VangThua Thien Hue 530000Vietnam

Terapon jarbua was collected from Tam Giang-Cau Hai lagoon systems and then their reproductive performances were *** 342 species were caught by otter trawlers and different fishing gears in marine and Tam Giang-Cau Hai lagoon systems on certain days of each month during period from September 2015 to August 2016 at fishing *** determination of age was based on composition of the fish:ear,scaly,spine,gill cover and spine and the ovarian histology *** gonads after being fixed with Bouins solution were cleansed,cut,dyed and put on the observation *** showed that the sex of Terapon jarbua was nearly clarified at the approximately 1+age group and participated in reproduction process in the first time at the 1+age *** batch and relative fecundity of Terapon jarbua were *** batch fecundity of Terapon jarbua varied from 239,029 to 420,400 *** relative fecundity capacity fluctuated from 945 to 1,013 of eggs per gram of fish and the mean value by 981 eggs per gram of *** spawning season of fish occurred from March to May annually.

关键词： Terapon jarbua reproductive biology Thua Thien Hue

r-PE-HD/r-PET纤维复合材料的制备与性能

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工程塑料应用 2019年第12期47卷 21-26页

作者：阮文灵毛亚鹏李秋影吴驰飞华东理工大学材料科学与工程学院高分子合金研究室

以回收高密度聚乙烯(r-PE-HD)和回收聚对苯二甲酸乙二酯(r-PET)纤维为原料制备复合材料。r-PET纤维通过对回收涤纶织物和回收土工膜进行开松、打碎而制成。为了改善r-PE-HD和r-PET的相容性,添加相容剂马来酸酐接枝PE-HD(PE-HD-g-MAH)改... 详细信息

以回收高密度聚乙烯(r-PE-HD)和回收聚对苯二甲酸乙二酯(r-PET)纤维为原料制备复合材料。r-PET纤维通过对回收涤纶织物和回收土工膜进行开松、打碎而制成。为了改善r-PE-HD和r-PET的相容性,添加相容剂马来酸酐接枝PE-HD(PE-HD-g-MAH)改善r-PE-HD和r-PET纤维之间的界面粘合性。使用差示扫描量热仪、热重分析仪、万能试验机和冲击试验机等研究复合材料的热性能和力学性能。结果表明,添加相容剂后,r-PE-HD与r-PET纤维之间的界面结合得到改善。当相容剂含量为10份时,以回收涤纶织物制备出的r-PET(r-PET1)纤维与r-PE-HD进行共混,复合材料界面结合性最好,拉伸强度和冲击强度最高;而当相容剂含量为7份时,用土工膜制备的r-PET(r-PET2)纤维与r-PE-HD进行共混,复合材料界面结合性最好,拉伸强度和冲击强度最高。在r-PE-HD/r-PET1体系中,当相容剂含量较高时,r-PE-HD的熔点和结晶温度均明显下降;而在r-PE-HD/r-PET2体系中,未加相容剂时r-PE-HD的熔点和结晶温度较纯r-PE-HD有明显下降,随后增加相容剂含量,熔点和结晶温度变化不大。

关键词：回收高密度聚乙烯回收聚对苯二甲酸乙二酯纤维相容性

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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

Assessment of Growth and Productivity on Four Black Pepper varieties (<i>Piper nigrum</i>L.) in Three Target Provinces of vietnam

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Engineering（科研） 2021年第12期13卷 647-655页

作者： Duong Thi Oanh nguyen van Long nguyen Quang Ngoc Tran Thi Dieu Hien Pham Thi Hoai nguyen Ba Huy Pepper Research and Development Centre Pleiku City Viet Nam

Black pepper varieties, namely “vinh linh”, “Lada”, “An Do” and “Loc Ninh” were planted in three different ecological regions: Dak Lak, Gia Lai and Dong Nai in order to compare the growth ability, productivity, and quality of peppercorn. The experiments were designed in the Randomized Complete Block Design (RCBD) with four replications. The results of study have been indicated that “vinh linh” and “Lada” both varieties performed better crucial parameters of growth, productivity and yield, after 36 months planted. Although having greater growth parameter in the location of Dong Nai province, four varieties showed lower yield than other regions. By contrast, the four pepper types achieved the highest yield in Gia Lai, followed by Dak Lak. With respect to peppercorn quality, “vinh linh”, “Loc Ninh” and “Lada” achieved requirements of vietnamese Standard (TCvN 7036:2008) including bulk density: 535.69 - 612.72 g/l;piperine: 4.06 - 4.31 g/100g and volatile oil at 2.72 - 3.16 ml/100g. In contrast, “An Do” variety presented the poorest level of piperine (3.78 g/100g), and unachieved requirements.

关键词： Pepper varieties Growth Yield Ecology vietnam

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泡沫铝填充结构机床工作台结构优化设计

机械设计 2014年第11期31卷 52-55页

作者：于英华沈佳兴阮德灵肖振辽宁工程技术大学机械工程学院辽宁阜新123000

为了最大限度地提升泡沫铝填充结构机床工作台的轻质性和静、动态性能,对前期设计的该结构工作台进行优化设计。优化设计过程中设定工作台的总体质量最小为目标函数,铸铁层外壳的厚度尺寸为优化变量,工作台的最大应力和最大变形量为约... 详细信息

为了最大限度地提升泡沫铝填充结构机床工作台的轻质性和静、动态性能,对前期设计的该结构工作台进行优化设计。优化设计过程中设定工作台的总体质量最小为目标函数,铸铁层外壳的厚度尺寸为优化变量,工作台的最大应力和最大变形量为约束条件。然后对优化前后的泡沫铝填充结构机床工作台的静、动态特性进行有限元仿真分析,对其质量进行计算,并将两种结构工作台的静、动态特性和质量进行比较。结果表明,优化后的泡沫铝填充结构机床工作台的轻质性和高静、动态性能更显突出。

关键词：泡沫铝填充结构轻质优化设计

Application of Remote Sensing and GIS Technology in Mapping Partition Saline Intrusion to Paddy Land:A Case Study at Phu vang District,Thua Thien Hue Province

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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 48-59页

作者： nguyen Hoang Khanh linh Le Ngoc Phuong Quy Truong Do Minh Phuong nguyen Trac Ba An Faculty of Land Resources and Agricultural Environment University of Agriculture and ForestryHue University102 Phung Hung StreetHue 530000Vietnam

Adapting and restricting salinity intrusion in vietnam is being concerned by more researchers as well as the local *** study aimed to use remote sensing and geographic information system(GIS)technology for mapping paddy areas and salinity intrusion in spring crop 2015 at Phu vang district,thereby helping precondition for assessing and monitoring changes in salinity intrusion to serve for salinization management in study *** on acquisition imagery,land use map and normalized difference vegetation index(NDvI)were extracted to interpolate the salinity of area by combining the laboratory analysis of collected soil samples from the *** result showed that there were 1,067.107 ha of salinity land area accounting for 10.04%of the rice land in Phu vang district,where the moderate salinity level was 180.67 ha and low salinity level was 866.431 *** salinity rice land was mainly distributed in vinh Ha commune,Phu An commune and Phu Dien *** salinity in this area ranged from 0.4 mS/cm to 1.41 mS/cm and the moderate salinity was approximately 0.9 mS/***,this research also showed that the salinity(electrical conductivity)and the development of vegetation(NDvI)were closely related with each other up to 61.4%.

关键词： GIS remote sensing normalized difference vegetation index salinity intrusion paddy land

Biological Resources for Development of Aquaculture in Thi Nai Lagoon,vietnam

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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 98-106页

作者： Kieu Thi Huyen Tran vinh Phuong Phan Thi Le Anh nguyen Quang linh Faculty of Fisheries University of Agriculture and ForestryHue UniversityHue City 530000Vietnam Department of Nutritional Diseases and Systems for Livestock and Aquaculture Institute of BiotechnologyHue UniversityPhu ThuongPhu VangThua Thien Hue 530000Vietnam Central Highlands Aquaculture Center Research Institute for Aquaculture IIIBuon Ma Thuot City 630000Vietnam

The diversity of aquatic resources in Thi Nai Lagoon decreased due to the lack of harmonious use and integrated long-term planning on the use of living *** remained a lack of mechanisms and regulations for coordination of activities in the lagoon by Binh Dinh Provincial People’s Committee(PPC).The aim of the study was to investgate the aquatic species and water quality in Thi Nai Lagoon,*** were collected at 23 different points on Thi Nai Lagoon,with three replicates at each *** were 106 species of fish presented on the lagoon and in different sizes,including 17 mollusc species and 15 crustaceans *** the dry season,there were 167 phytoplankton species in five divisions,10 classes in 39 orders in 59 families including 77 *** had eight chordata in 10 classes of 18 orders including 44 families,64 genus and 102 *** had the largest number of species,78 species,accounting for 76.5%of total *** the rainy season,only 48 species of Arthropoda,Cnidaria,Annelida,Chaetognatha and Rotifer were affected and some were not encountered in the wet season,such as mollusca and *** water quality variables were still good for aquaculture,within permitted limits of TCvN standard and criteria,there were still problems caused by production discharges and living activities of inhabitants around the lagoon,such as sedimentary matters.

关键词： Thi Nai Lagoon biodiversity resources water quality and interventions

延误和中断—结核病人在各种不同卫生保健机构寻医诊断的调查

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国际结核病与肺部疾病杂志 2000年第Z1期 73-80页

作者： K.Lnnroth L.M.Thuong P.D.linh v.K.Diwan 张本 Department of Social Medicine Goteborg University +Nordic School of Public Health Goteborg Sweden Pham Ngoc Thach TB and Lung Disease Center Ho Chi Minh City Vietnam Division of International Health(IHCAR) Department of Public Health Sciences Karolinska Institutet Stockholm Sweden

背景:越南胡志明市。目的:描述诊断延误;比较私人和公共卫生保健提供者所采用的诊断程序和转诊常规;检查接触各种不同类型行医者与结核病诊断延误危险性之间的联系。设计:在国家结核病规程中新病人的横断面调查。对以前接触过的卫生保... 详细信息

背景:越南胡志明市。目的:描述诊断延误;比较私人和公共卫生保健提供者所采用的诊断程序和转诊常规;检查接触各种不同类型行医者与结核病诊断延误危险性之间的联系。设计:在国家结核病规程中新病人的横断面调查。对以前接触过的卫生保健人员所采用的寻医和诊断程序的回顾性评价。结果:首次症状出现后4周,81%的病人出门看病。首次接触卫生保健机构后4周,有47%诊断为结核病。私人医生比公共卫生保健人员使用X线检查,痰涂片和转诊明显少。首次就到私人药房、私人医生或公立医院就诊的病人比首次就去国家结核病规程部门就诊的病人更有可能发生提供者长时间延误。结论:胡志明市结核病诊断延误更多地是由于卫生保健人员没有能力检出结核病,而不是卫生保健服务未得到充分利用。诊断程序需要完善,转诊工作需要加强,尤其在私人提供者中。

关键词：结核病私人卫生保健诊断延误越南

Green synthesis of three-dimensional magnesium ferrite/titanium dioxide/reduced graphene from Garcinia mangostana extract for crystal violet photodegradation and antibacterial activity

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Journal of Semiconductors 2023年第12期44卷 111-124页

作者： Tong Hoang Lin Che Quang Cong nguyen Thanh Hoai Nam Hoang An nguyen Duy Hai Ton That Buu Thoi Le Nhat Binh Hoang Le Minh Lam Thanh Ngan Hoang Thuy Kim Ngan Du Chi vi Ta Dang Khoa nguyen Huu Hieu vNU-HCM Key Laboratory of Chemical Engineering and Petroleum Processing(Key CEPP Lab)Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam Faculty of Chemical Engineering Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam vietnam National University Ho Chi Minh City(vNU-HCM) Linh Trung WardThu Duc CityVietnam

In this study,three-dimensional porous magnesium ferrite/titanium dioxide/reduced graphene oxide(Mg Fe_2O_(4)-GM/TiO_(2)/rGO(MGTG))was successfully synthesized via green and hydrothermal-supported co-precipitation methods using the extract of Garcinia mangostana(***)as a reducing *** characterization results indicate the successful formation of the nano/micro Mg Fe_(2)O_(4)(MFO)and TiO_(2) on the structure of the reduced graphene oxide(rGO),which can also act as efficient support,alleviating the agglomeration of the nano/micro MFO and TiO_(2).The synergic effects of the adsorption and photodegradation activity of the material were investigated according to the removal of crystal violet(Cv)under ultraviolet *** effects of catalyst dosage,Cv concentration,and p H on the Cv removal efficiency of the MGTG were also *** to the results,the Cv photodegradation of the MGTG-200 corresponded to the pseudo-first-order kinetic *** reusability of the material after 10 cycles also showed a removal efficiency of 92%.This happened because the materials can easily be recollected using external *** addition,according to the effects of different free radicals·O_(2)^(-),h^(+),and·OH on the photodegradation process,the photocatalysis mechanism of the MGTG was also thoroughly *** antibacterial efficiency of the MGTG was also evaluated according to the inhibition of the Gram-positive bacteria strain Staphylococcus aureus(***).Concurrently,the antibacterial mechanism of the fabricated material was also *** results confirm that the prepared material can be potentially employed in a wide range of applications,including wastewater treatment and antibacterial activity.

关键词： magnesium ferrite titanium dioxide reduced graphene oxide Garcinia mangostana photodegradation antibacterial