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废弃杨木水泥模板纤维特性及纤维板的研究

浙江农林大学学报 2014年第6期31卷 940-946页

作者： pham Tuong Lam 王新洲邓玉和董葛平 TRAN Minh Toi CAO quoc An 南京林业大学材料科学与工程学院江苏南京210037 越南林业大学木材工程学院河内156204

以废弃杨木水泥模板纤维为原料制造纤维板,实现杨木的循环利用。对水泥模板以及分离好的纤维性能进行测试分析,并分别以废弃杨木水泥模板纤维、新鲜杨木纤维为原料制造不同密度的纤维板,讨论原料特性和施胶量对板材性能的影响。研究结... 详细信息

以废弃杨木水泥模板纤维为原料制造纤维板,实现杨木的循环利用。对水泥模板以及分离好的纤维性能进行测试分析,并分别以废弃杨木水泥模板纤维、新鲜杨木纤维为原料制造不同密度的纤维板,讨论原料特性和施胶量对板材性能的影响。研究结果表明:废弃杨木水泥模板表面碳元素含量高于杨木单板表面,而水泥模板表面的氧元素含量较低;废弃杨木水泥模板纤维的堆积密度与新鲜杨木纤维基本相同;当用水泥模板制得的纤维板密度达到0.75 g·cm-3时,板材的力学性能和吸水厚度膨胀率(TS)值均优于其他密度的板材,当施胶量大于等于12.0%时,板材的弹性模量(MOE),静曲强度(MOR),内结合强度(IB)性能均能满足国家标准值的要求。因此,废弃杨木水泥模板完全可以替代普通杨木制造纤维板。

关键词：木材科学与技术废弃杨木水泥模板纤维板物理力学性能施胶量

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***（好市网）营销策略研究

作者：范俊玉（pham tuan Ngoc）南京财经大学

学位级别：硕士

随着越南互联网的蓬勃发展,网上购物得到快速发展。网上购物的兴起不仅给人们的生活带来了极大的便利与实惠,还产生了新的互联网经济模式,同时打破了原有产业格局,使得传统企业倍感压力。这其中发展最为迅速的是C2C网络购物市场。由于... 详细信息

随着越南互联网的蓬勃发展,网上购物得到快速发展。网上购物的兴起不仅给人们的生活带来了极大的便利与实惠,还产生了新的互联网经济模式,同时打破了原有产业格局,使得传统企业倍感压力。这其中发展最为迅速的是C2C网络购物市场。由于越南互联网普及正处在高速发展期,C2C电子商务市场规模将保持持续快速增长。同时,网络购物正在逐步加深渗透,更多的品类将加入网购行列,二,三线城市和农村市场也呈现快速增长。经过几年的大浪淘沙,越南电子商务经历段平静时间后现在又兴起。目前越南C2C市场形成了“好市网”,“物价网”,“五秒网”和“***”四强的局面,而好市网作为后起之秀,在很短的时间内就打败了早先占据垄断地位的行业巨头物价网,并将其远远抛在身后。但同时,谷歌,脸书网等高调宣布进入市场参与竞争,传统零售厂商也纷纷推出在线销售参与竞争,好市网面临巨大挑战。尤其严酷的事实是,越南C2C市场尚未找到成熟的盈利模式,在好市网母公司701Search集团增长趋缓的形势下,好市网能否继续保持领先地位,将更多依赖于好市网能否找到更多适合的盈利途径。目前,701Search集团的B2C平台已在新加坡及其他国家业务收费,其部分增值服务也取得了较好的市场反应,在这种情况下,研究好市网的营销策略和盈利途径,对好市网实现持续高速发展有着不同寻常的意义。本文对论题的研究采取了分析的方法,从剖析好市网的成功经验开始,借助战略分析工具,本文的重点研究是通过PETS分析法对好市网进行宏观环境分析和运用五种竞争力量模型来分析行业环境和内外部环境通过这两种分析来了解好市网营销环境来研究好市网的营销策略的依据。运用SWOT矩阵来分析好市网公司内部资源来研究好市网的SO(优势-机会)战略从此对好市网的营销策略规划做了初步探讨和研究,并提出相应的营销策略和参考盈利途径,以期进一步巩固好市网的优势竞争地位,并为越南C2C电子商务市场的发展提供借鉴。

关键词：电子商务 C2C 网上购物营销策略

Microcystin accumulation and biochemical responses in the edible clam Corbicula leana P. exposed to cyanobacterial crude extract

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Journal of Environmental Sciences 2016年第6期28卷 120-130页

作者： Thanh-Luu pham Kazuya Shimizu Ayako Kanazawa Yu Gao Thanh-Son Dao Motoo Utsumi Graduate School of Life and Environmental Sciences University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8572 Japan Faculty of Life Sciences Toyo University Ora-gun Gunma 374-0193 Japan College of Chemical and Environmental Engineering Shandong University of Science and Technology qingdao 266590 China Ho Chi Minh City University of Technology 268 Ly Thuon9 Kiet St. Dist. 10 Ho Chi Mirth City Viet Nam Vietnam Academy of Science and Technology （VAST) Institute of Tropical Biology 85 Tran Quoc Toan St. Dist. 3 Ho Chi Minh City Viet Nam

We investigated the accumulation and effects of cyanobacterial crude extract（CCE）containing microcystins（MCs） on the edible clam Corbicula leana P. Toxic effects were evaluated through the activity of antioxidant and detoxification enzymes： catalase（CAT）,superoxide dismutase（SOD）, and glutathione-S-transferases（GSTs） from gills, foot, mantle and remaining soft tissues. Clams were exposed to CCE containing 400 μg MC-LReq/L for10 days and were then kept in toxin-free water for 5 days. Clam accumulated MCs（up to 3.41 ± 0.63 μg/g dry weight（DW） of unbound MC and 0.31 ± 0.013 μg/g DW of covalently bound MC）. Detoxification and antioxidant enzymes in different organs responded differently to CCE during the experiment. The activity of SOD, CAT, and GST in the gills and mantle increased in MC-treated clams. In contrast, CAT and GST activity was significantly inhibited in the foot and mostly only slightly changed in the remaining tissues. The responses of biotransformation, antioxidant enzyme activity to CCE and the fast elimination of MCs during depuration help to explain how the clam can survive for long periods（over a week） during the decay of toxic cyanobacterial blooms in nature.

关键词： Bioaccumulation Cyanotoxins Covalently bound microcystins Aqueous extracts

A New Species of Rhacophorus(Amphibia:Anura:Rhacophoridae)from Vietnam

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Asian Herpetological Research 2017年第4期18卷 221-234页

作者： Tao Thien NGUYEN Cuong The pham Truong Quang NGUYEN Hoa Thi NINH Thomas ZIEGLER Vietnam National Museum of Nature Vietnam Academy of Science and Technology18 Hoang Quoc Viet RoadHanoiVietnam Institute of Ecology and Biological Resources Vietnam Academy of Science and Technology18 Hoang Quoc VietHanoiVietnam Graduate University of Science and Technology Vietnam Academy of Science and Technology18 Hoang Quoc VietCau GiayHanoiVietnam The Kyoto University Museum Kyoto UniversityYoshida HonmachiSakyokuKyoto 606-8501Japan Hanoi National University of Education 136 Xuan ThuyCau GiayHanoiVietnam AG Zoologischer Garten K6ln Riehler Strasse 173D-50735 CologneGermany Institute of Zoology University of CologneZiilpicherStrafle 47bD-50674 CologneGermany

We describe a new species of Rhacophorus based on two adult specimens collected from Hoa Binh Province, northern Vietnam. Rhacophorus hoabinhensis sp. nov. is distinguishable from its congeners on the basis of a combination of the following morphological characters： size small （SVL 31.1-32.5 mm in males）; head slightly longer than wide; vomerine teeth absent; snout short （SNL/SVL 0.16）; dorsal skin smooth; forearm and tarsus with dermal fringes; dermal appendage at vent present; webbing formula on fingers I12/3-12/3II1-2III1-1IV and on toes I3/4-1II1/2- IIII1/2-1IVI-1/2V; dorsal surface grey yellow with brown spots; lower jaw region dark grey, throat, chest and belly cream; anterior and posterior thighs, as well as ventral surface of tibia orange. The interspecific uncorrected genetic distances （16S rRNA gene） between the new species from Hoa Binh and other analyzed congeners varied from 9.8% to 17.4%. In the phylogenetic analyses, the new species revealed to be a representative of Rhacophorus and was nested within the R. hoanglienensis-orlovi species group.

关键词： Rhacophorus hoabinhensis sp.nov karst forest molecular phylogeny taxonomy Hoa Binh Province

Applied Biofloc Technology for Target Species in the Mekong Delta in Vietnam： A Review

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Journal of Environmental Science and Engineering(B) 2017年第4期6卷 165-175页

作者： Nguyen Van Hoa Ta Van Phuong Tran Ngoc Hai Chau Tai Tao Le quoc Viet Nguyen Thi Hong Van Huynh Thanh Toi Tran Huu Le Vo Nam Son pham quoc Anh Duy College of Aquaculture and Fisheries (CAF) Cantho University Cantho 270000-910000 Vietnam College of Applied Biology Tay Do University Cantho 270000-910000 Vietnam

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心理营销的几大效应

新智慧（财富版） 2007年第3期 14-15页

作者： Michel tuan pham 苏伟(编译整理) 伊人(摘)

顾客并不总是依靠价值（产品/服务的价格、质量等因素）来进行选择。很多时候，你的产品本身并不需要任何变化，却能够深刻地改变顾客选择结果。以下效应对影响顾客非价值的选择很有帮助。

关键词：心理营销顾客产品价值价格

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利用废弃杨木水泥模板生产纤维板的研究

中南林业科技大学学报 2014年第3期34卷 109-116页

作者： pham TUONG LAM 邓玉和王新洲 TRAN MINH TOI 杨莹王向歌董葛平 CAO quoc AN 南京林业大学材料科学与工程学院江苏南京210037 越南林业大学越南河内

利用废弃杨木水泥模板制造纤维板,以实现保护环境,综合利用有限资源的目的。首先对废弃水泥模板组成单元-单板的密度、强度、吸水性和微观构造进行研究,并分析其纤维得率。在此基础上,以废弃水泥模板为原料制造不同密度的纤维板,并与杨... 详细信息

利用废弃杨木水泥模板制造纤维板,以实现保护环境,综合利用有限资源的目的。首先对废弃水泥模板组成单元-单板的密度、强度、吸水性和微观构造进行研究,并分析其纤维得率。在此基础上,以废弃水泥模板为原料制造不同密度的纤维板,并与杨木纤维及水泥模板纤维为原料制造不同比例的混合纤维板进行性能对比分析。结果表明:废弃水泥模板的单板气干密度、弹性模量和静曲强度以及纤维得率均高于普通杨木单板,而吸水厚度膨胀率小于普通杨木单板;当用水泥模板制得的纤维板密度达到0.75 g/cm3时,板材的力学性能和TS值均优于其他目标密度的板材,各项力学性能都达到国家标准的要求,且超过了普通杨木纤维板,说明废弃杨木水泥模板完全可以作为纤维板生产的好原料。

关键词：废弃水泥模板综合利用再生纤维板物理力学性能

Calibration of a neutron dose rate meter in various neutron standard fields

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Nuclear Science and Techniques 2020年第6期31卷 75-82页

作者： tuan Khai Nguyen Hoai-Nam Tran Quynh Ngoc Nguyen Thi My Linh Dang Van Loat Bui Thiansin Liamsuwan Ngoc-Thiem Le Vietnam Agency for Radiation and Nuclear Safety 113 Tran Duy HungHanoi 100000Vietnam Institute of Fundamental and Applied Sciences Duy Tan UniversityHo Chi Minh 700000Vietnam Faculty of Natural Sciences Duy Tan University3 Quang TrungDa Nang 550000Vietnam Institute for Nuclear Science and Technology VINATOM179 Hoang Quoc VietHanoi 100000Vietnam Faculty of Physics VNU University of Science334 Nguyen TraiHanoi 100000Vietnam Nuclear Research and Development Division Thailand Institute of Nuclear TechnologyOngkharakNakorn NayokThailand 7 Faculty of Medicine and Public HealthHRH Princess Chulabhorn College of Medical ScienceChulabhorn Royal AcademyBangkokThailand

This paper presents the calibration of a neutron dose rate meter and the evaluation of its calibration factors(CFs)in several neutron standard fields(i.e.,two standard fields with bare sources of252Cf and241Am-Be,and five simulated workplace fields with241Am-Be moderated sources).The calibration in standard fields with bare sources was conducted by following the recommendations of the ISO 8529 *** measured total neutron ambient dose equivalent rates,denoted as H*(10)tot,were analyzed to obtain direct components,denoted as H*(10)dir,using a reduced fitting *** CF was then calculated as the ratio between the conventional true value of the neutron ambient dose equivalent rate in a free field,denoted as H*(10)FF,and the value of H*(10)*** contrast,in the simulated workplace neutron fields,the calibration of the neutron dose rate meter was conducted by following the ISO 12789 *** CF was calculated as the ratio between the values of H*(10)totmeasured by a standard instrument(i.e.,Bonner sphere spectrometer)and the neutron dose rate *** CF values were obtained in the range of 0.88–*** standard uncertainties(k=1)of the CFs were determined to be in the range of approximately 6.6–13.1%.

关键词： Neutron standard fields Neutron dose rate meter Calibration factor 252Cf source 241AmBe source

Development of a PARCS/Serpent model for neutronics analysis of the Dalat nuclear research reactor

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Nuclear Science and Techniques 2021年第2期32卷 32-44页

作者： Viet-Phu Tran Kien-Cuong Nguyen Donny Hartanto Hoai-Nam Tran Vinh Thanh Tran Van-Khanh Hoang pham Nhu Viet Ha Institute for Nuclear Science and Technology(INST) Vietnam Atomic Energy Institute(VINATOM)179 Hoang Quoc Viet str.Cau Giay DistrictHanoi 100000Vietnam Nuclear Research Institute(NRI) Vietnam Atomic Energy Institute(VINATOM)01 Nguyen Tu LucDalatLamdong 670000Vietnam Department of Mechanical and Nuclear Engineering University of SharjahPO.BOX 27272SharjahUnited Arab Emirates Institute of Fundamental and Applied Sciences Duy Tan UniversityHo Chi Minh city 700000Vietnam Faculty of Natural Science Duy Tan UniversityDanang 550000Vietnam Nuclear Safety Division Technical Support Center for Radiation and Nuclear Safety and Emergency ResponseVietnam Agency for Radiation and Nuclear Safety(VARANS)113 Tran Duy Hung str.Cau Giay DistrictHanoi 100000Vietnam

Cross-sectional homogenization for full-core calculations of small and complex reactor configurations,such as research reactors,has been recently recognized as an interesting and challenging *** paper presents the development of a PARCS/Serpent model for the neutronics analysis of a research reactor type TRIGA Mark-II loaded with Russian VVR-M2 fuel(known as the Dalat Nuclear Research Reactor or DNRR).The full-scale DNRR model and a supercell model for a shim/safety rod and its surrounding fuel bundles with the Monte Carlo code Serpent 2 were proposed to generate homogenized fewgroup cross sections for full-core diffusion calculations with *** full-scale DNRR model with Serpent 2 was also utilized as a reference to verify the PARCS/Serpent *** of the effective neutron multiplication factors,radial and axial core power distributions,and control rod worths showed a generally good agreement between PARCS and Serpent *** addition,the discrepancies between the PARCS and Serpent 2 results are also ***,the results indicate the applicability of the PARCS/Serpent model for further steady state and transient analyses of the DNRR.

关键词： PARCS Serpent 2 Group constant DNRR