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越南广宁省旅游发展的问题与对策研究 ——以下龙市和云屯岛县为例

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越南广宁省旅游发展的问题与对策研究 ...

作者： NGUYEN hai ninh（阮海宁）南京理工大学

学位级别：硕士

这些年来,环球旅游发展快速,促进了世界各地旅游资源的猛烈开发。同时让旅游业的竞争日益激烈,各地纷纷走上了可持续发展的道路。区域旅游形式已经成为全球旅游业发展的一种趋势,也成为各地提高旅游竞争力,改善区域旅游质量服务,实现旅... 详细信息

这些年来,环球旅游发展快速,促进了世界各地旅游资源的猛烈开发。同时让旅游业的竞争日益激烈,各地纷纷走上了可持续发展的道路。区域旅游形式已经成为全球旅游业发展的一种趋势,也成为各地提高旅游竞争力,改善区域旅游质量服务,实现旅游业可持续、健康以及快速发展的必走之路。目前随着社会、经济、文化的全面发展和人民生活水平不断提高,人们对旅游的需求也越来越大。在越南,旅游业虽然起步较晚,但近年来它在数量与质量上都有了较快地发展,为国民经济做出了重大贡献。广宁省位于越南东北部,特别是下龙市和云屯岛县的两个地方拥有许多的人文与自然景观旅游资源,有利于发展旅游业。作者在充分调研越南广宁省的旅游发展境况下,发现了存在以下问题:交通基础设施健全、缺乏地方特色、人力资源不足、服务质量低以及管理能力有限等。因此,本文通过对广宁省的下龙市和云屯岛县进行研究、分析和评估,从此提出切实可行的解决方案。建构旅游战略之后,广宁省将得到一些有利于发展旅游业的详细建议以及该省能够实施、实现全省旅游业发展的各种项目。规划将提出创新的想法来解决广宁省目前面临的最大限制。关于这项研究取得的主要结果如下:介绍广宁省旅游业发展现状,发展存在问题,发展目标以及发展战略。笔者需要解决的主要问题就是如何吸引世界各地的游客以及全国其他地区的其他省份游客;开发一个现代化的基础设施,以方便接待游客进入省和省的旅游景点;解决省内旅游业人力资源问题,创造就业机会,为社会增加收入,为减少贫困人口做出努力;最后是合理地规划管理旅游业发展计划。论文研究越南广宁省旅游业发展的问题与对策研究,将目前存在的困境原因进行分析并提供发展旅游的方向和建立发展战略,将直接推动越南广宁省旅游业的健康和可持续发展,并对其他地区旅游业的发展起到引领示范作用。

关键词：广宁省下龙市云屯岛县旅游困境发展对策

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H₂SO₄ Solution

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Open Journal of Organic Polymer Materials 2016年第1期6卷 30-37页

作者： Dang hai ninh Tran Thi Thao Pham Duy Long Nguyen Nang Dinh University of Engineering and Technology Vietnam National University Hanoi Hanoi Vietnam Institute of Materials Science Vietnamese Academy of Science and Technology Hanoi Vietnam

Polyaniline (PANI) onto indium-doped tin-oxide (ITO)-coated glass samples were prepared by electroopolymerization in 0.5 M H2SO4 solution. Structure and morphology characterization of the PANI films demonstrated that the films were grown onto ITO substrates in the form of polycrystalline microbelts separated by micropores. By analysing the UV-Vis absorption spectra of the PANI films, the energy bandgap was found to be approximately 2.75 eV. The PANI/ITO films exhibited a good reversible electrochromic display (ECD) performance when cycled in 0.1 M LiClO4 + pro-pylene carbonate. The response time of the ECD coloration was found to be as small as 15 s and the coloration efficiency was found to be 8.85 cm2 C-1. After 100 cycles of the ECD performance, the cyclic voltammetry curve of the working electrode maintained unchanged. This demonstrates that the electropolymerized PANI films can be served as a good candidate for ECD applications, taking advantage of their excellent properties in terms of chemical stability.

关键词： Polyaniline Thin Films UV-Vis Absorption Electrochromic Property

Ecoregional variations of aboveground biomass and stand structure in evergreen broadleaved forests

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Journal of Forestry Research 2020年第5期31卷 1713-1722页

作者： Tran Van Do Mamoru Yamamoto Osamu Kozan Vo Dai hai Phung Dinh Trung Nguyen Toan Thang Lai Thanh hai Vu Thanh Nam Trieu Thai Hung Hoang Van Thang Tran Duc Manh Cao Chi Khiem Vu Tien Lam Nguyen Quang Hung Tran Hoang Quy Pham Quang Tuyen Trinh Ngoc Bon Nguyen Thi Thu Phuong ninh Viet Khuong Nguyen Van Tuan Dang Thi hai Ha Tran hai Long Dang Van Thuyet Dang Thinh Trieu Nguyen Van Thinh Tran Anh hai Duong Quang Trung Nguyen Van Bich Dinh hai Dang Pham Tien Dung Nguyen Huy Hoang le Thi Hanh Phan Minh Quang Nguyen Thi Thuy Huong Hoang Thanh Son Nguyen Thanh Son Nguyen Thi Van Anh Nguyen Thi Hoai Anh Pham Dinh Sam Hoang Thi Nhung Hoang Van Thanh Nguyen Huu Thinh Tran Hong Van Ho Trung Luong Bui Kieu Hung Research Institute for Sustainable Humanosphere Kyoto UniversityUjiKyotoJapan Silviculture Research Institute Vietnamese Academy of Forest SciencesNorth Tu LiemHanoiVietnam Center for Southeast Asian Studies Kyoto UniversityKyotoJapan Vietnamese Academy of Forest Sciences North Tu LiemHanoiVietnam Vietnam Administration of Forestry No.2 Ngoc HaBa DinhHanoiVietnam

Biotic and abiotic factors control aboveground biomass(AGB)and the structure of forest *** study analyses the variation of AGB and stand structure of evergreen broadleaved forests among six ecoregions of Vietnam.A data set of 1731-ha plots from 52 locations in undisturbed old-growth forests was *** results indicate that basal area and AGB are closely correlated with annual precipitation,but not with annual temperature,evaporation or hours of *** area and AGB are positively correlated with trees>30 cm *** areas surveyed(52.6%)in these old-growth forests had AGB of 100–200 Mg ha^-1;5.2%had AGB of 400–500 Mg ha^-1,and 0.6%had AGB of>800 Mg ha^-*** percent of the areas surveyed had stand densities of 300–600 ***^-1,and 64%had basal areas of 20–40 m^2 ha^-*** is an important factor influencing the AGB of old-growth,evergreen broadleaved forests in *** causing the loss of large-diameter trees(e.g.,>100 cm DBH)affects AGB but may not seriously affect stand density.

关键词： Aboveground biomass Carbon storage Climatic variables Ecoregion Edaphic variables Oldgrowth forest

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中国对越南广宁省旅游发展的影响力研究

今日财富 2017年第23期 10-11页

作者： NGUYEN hai ninh 章荣君 DUONG VAN KHANH 南京理工大学公共事务学院 DONG THAP UNIVERSITY

越南,对中国人来说也许并不陌生,因为它与中国毗邻,而且历史上两国关系源远流长。这些年来,随着中国经济快速地发展,中国人民生活水平也不断地提高。目前全球旅游趋势快速发展使中国人对旅游的需求也越来越高。在越南,广宁省位于越南东... 详细信息

越南,对中国人来说也许并不陌生,因为它与中国毗邻,而且历史上两国关系源远流长。这些年来,随着中国经济快速地发展,中国人民生活水平也不断地提高。目前全球旅游趋势快速发展使中国人对旅游的需求也越来越高。在越南,广宁省位于越南东北部,与中国广西省交界。两国不仅具有地形优势而且风俗习惯拥有许多共同点,所以在东南亚的几个国家,越南就是中国人旅游目的地。五年来,根据广宁省游客市场的调查表明来自中国的游客是最稳定平衡的。中国人对越南旅游业,尤其是广宁省旅游业的发展来说已经作出了很大的贡献。

关键词：影响力

Assessment of Hydrological Drought Using the Standardized Streamflow Index (SSFI): A Case Study of the Tien Yen River Basin of Quang ninh Province, Vietnam

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Journal of Geoscience and Environment Protection 2022年第8期10卷 309-326页

作者： Nguyen Van Hieu Nguyen Van Tuan Nguyen Khac Bang Pham Hoang hai le Vinh Ha Tran Thi Hoa Institute of Water Resources Planning Ha Noi Vietnam Institute of Environment and Public Health VUSTA Ha Noi Vietnam Thai Binh University Thai Binh Province Thai Binh Vietnam

Probabilistic assessment of drought plays an important role in providing valuable information for evaluating water resources systems under drought conditions, and bivariate copulas are effective and efficient for the probabilistic assessment of drought based on joint distributions and/or joint return periods of drought characteristics. In this study, hydrological drought events and their characteristics (including duration and severity) in the Tien Yen River Basin of Quang ninh province are detected using the Standardized Streamflow Index (SSFI). The BB8Copula is selected as the best-fit copula for hydrological drought duration and severity. Joint probabilities and joint return periods of drought duration and severity in the cases “and” and “or” are calculated based on the BB8Copula, which are employed for drought assessment. The results show that the drought events with 1-season or cross-quarter duration were more popular than others;joint probabilities and joint return periods of the detected drought events from 1962 to 2009, ranged from 0.2% to 92.2% and from 0.782 years to 315.414 years, respectively, in the case “and”, and ranged from 3.8% to 99.6% and from 0.724 years to 18.785 years, respectively, in the case “or”.

关键词： Probabilistic Assessment Standardized Streamflow Index (SSFI) Hydrological Drought Drought Characteristics Copula

基于灰色GM(1,N)的生态旅游市场需求预测研究——以越南风雅-格邦国家公园为例

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绿色科技 2013年第1期15卷 238-240页

作者：阮氏海宁温作民南京林业大学经济管理学院江苏南京210037

指出了生态旅游市场需求受到众多因素影响,而且各因素之间存在复杂的相关性,因素度量信息不足,所以可以将生态旅游市场需求预测系统视为灰色系统。以风雅-格邦国家公园为分析对象,基于预测模型GM(1,N),分析诸多因素对越南生态旅游市场... 详细信息

指出了生态旅游市场需求受到众多因素影响,而且各因素之间存在复杂的相关性,因素度量信息不足,所以可以将生态旅游市场需求预测系统视为灰色系统。以风雅-格邦国家公园为分析对象,基于预测模型GM(1,N),分析诸多因素对越南生态旅游市场需求的综合影响,主要考虑各因素之间的相关度基础上选择最合适的因素建立灰色预测模型,从研究结果中可以得到:影响生态旅游市场需求的因素之间,客源地的教育水平最具有相关性,其次是性别,收入以及旅游资源状况等,灰色预测模型的结果表明:2012～2021年越南生态旅游市场需求增长总体呈现上涨趋势,但增幅较为平缓。

关键词：旅游需求预测灰色系统理论多元灰色预测模型

Classification and morphology of circulating haemocytes in the razor clam Sinonovacula constricta

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Aquaculture and Fisheries 2022年第1期7卷 52-58页

作者： Dang hai Nguyen Donghong Niu Zhiyi Chen Maoxiao Peng Nga Thi Tran Jiale Li Key Laboratory of Genetic Resources for Freshwater Aquaculture and Fisheries Shanghai Ocean UniversityMinistry of AgricultureShanghai201306China Research Institute for Aquaculture No.1 Dinh BangTu SonBac NinhViet Nam

The razor clam Sinonovacula constricta is widely distributed in the intertidal zones and estuarine waters along the coast of western Pacific Ocean and is extensively *** though haemocytes are known to play an important role in the immune mechanisms of bivalves,these cells are poorly studied in *** researched the morphology and immunological activities of haemocytes in *** using light and electron microscopy and flow *** major subpopulations of haemocytes were identified in the haemolymph:granulocytes,semigranulocytes,and *** subpopulations were divided using flow cytometry,but not ***,the flow cytometry findings were combined with the light and electron microscopy findings,as well as Percoll density-gradient centrifugation findings,to classify and distinguish between the cell types more *** combined findings showed that granulocytes was larger cells,while semigranulocytes was smaller and more ***,granulocytes had numerous granules in the cytoplasm,semigranulocytes contained fewer and smaller granules,and hyalinocytes was smaller and less abundant with no or a few *** granulocytes and semigranulocytes had greater phagocytotic activity and a higher lysosomal content than *** results declared that granulocytes and semigranulocytes were the main haemocytes involved in the cellular defence mechanism in ***.

关键词： Sinonovacula constricta Immune response Haemocytes Flow cytometry

Ecological and behavioural risk factors of scrub typhus in central Vietnam:a case-control study

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Infectious Diseases of Poverty 2021年第4期10卷 97-97页

作者： Hanh Thi Duc Tran Jan Hattendorf Hung Manh Do Thanh Tien Hoang Hang Thi hai Hoang Hoa Ngoc Lam Mai Kim Huynh Lan Thi Hoang Vu Jakob Zinsstag Daniel Henry Paris Esther Schelling Department of Epidemiology and Public Health Swiss Tropical and Public Health InstituteBaselSwitzerland 不详

Background The risk factors for scrub typhus in Vietnam remain *** typhus caused by Orientia tsutsugamushi often presents as an undifferentiated febrile illness and remains under appreciated due to the limited availability of diagnostic *** tropical rickettsial illness is increasingly recognized as an important cause of non-malaria acute undifferentiated fever in *** study aimed to investigate behavioural and ecological related risk factors of scrub typhus to prevent this potentially life-threatening disease in *** We conducted a clinical hospital-based active surveillance study,and a retrospective residence-enrolment date-age-matched case–control study in Khanh Hoa province,Vietnam,from August 2018 to March *** examinations,polymerase chain reaction and enzyme-linked immunosorbent assay IgM tests were applied to define cases and *** enrolled participants filled out a questionnaire including demographic socio-economic status,personal behaviors/protective equipment,habitat connections,land use,and possible exposure to the *** conditional logistic regression was used to define the scrub typhus associated risk *** We identified 44 confirmed cases and matched them with 152 *** cases and controls,the largest age group was the 41–50 years old and males accounted for 61.4%and 42.8%,*** were similarities in demographic characteristics between the two groups,with the exception of *** factors were significantly associated with acquisition of scrub typhus,including sitting/laying directly on household floor[adjusted OR(aOR)=4.9,95%CI:1.6–15.1,P=0.006],household with poor sanitation/conditions(aOR=7.9,95%CI:1.9–32.9,P=0.005),workplace environment with risk(aOR=3.0,95%CI:1.2–7.6,P=0.020),always observing mice around home(aOR=3.7,95%CI:1.4–9.9,P=0.008),and use of personal protective equipment in the field(aOR=0.4,95%CI:0.1–1.1,P=0.076).Conclusions Ecological

关键词： Ecological Environmental Behaviour Risk factor Scrub typhus Orientia tsutsugamushi Vietnam

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