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The Effect of Hydraulic Retention Times and Loading Rates on the Removal of Pollutants from Fish Processing Wastewater by Anaerobic Process

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Journal of Food Science and Engineering 2018年第6期8卷 237-240页

作者： Dao khanh Chau Tran Thanh Dai Faculty of Health and Applied Sciences Dong Nai Technology UniversityNguyen Khuyen StreetTrang Dai ward 810000Bien Hoa cityDong Nai provinceVietnam

Anaerobic treatment model treats fish processing wastewater to be necessary for a small and medium factory that is very popular in Vietnam and other *** techniques have been ***,they are quite expensive and hard to operate,especially in remote *** this study,the hydraulic retention times(HRT)including 3,5,and 7 hours with a various organic loading rate of 1.5 to 6.5 kg COD/m3/day were *** concentration as mix-liquor volatile suspended solid(MLVSS)in the model is at 6,000 to 9,000 mg/*** the basis of the result the optimal HRT with a 4.0 kg COD/m3/day organic loading rate was 8 hours which BOD5,COD removal efficiency were 92.18,87.36 percent *** the end of the optimal hydraulic retention times,the total methane gas volume as a by-product was collected with 2.6 liters.

关键词： Wastewater treatment anaerobic process hydraulic retention time organic loading rate

The Assessment of Non-Linear Effects in Clinical Research

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Pharmacology & Pharmacy 2012年第2期3卷 139-147页

作者： ton J. Cleophas Aeilko H. Zwinderman European College Pharmaceutical Medicine Lyon France c/o Albert Schweitzer Hospital Dordrecht Netherlands European College Pharmaceutical Medicine Lyon France c/o Albert Schweitzer Hospital Dordrecht Netherlands.

Background: Novel models for the assessment of non-linear data are being developed for the benefit of making better predictions from the data. Objective: To review traditional and modern models. Results, and Conclusions: 1) Logit and probit transformations are often successfully used to mimic a linear model. Logistic regression, Cox regression, Poisson regression, and Markow modeling are examples of logit transformation;2) Either the x- or y-axis or both of them can be logarithmically transformed. Also Box Cox transformation equations and ACE (alternating conditional expectations) or AVAS (additive and variance stabilization for regression) packages are simple empirical methods often successful for linearly remodeling of non-linear data;3) Data that are sinusoidal, can, generally, be successfully modeled using polynomial regression or Fourier analysis;4) For exponential patterns like plasma concentration time relationships exponential modeling with or without Laplace transformations is a possibility. Spline and Loess are computationally intensive modern methods, suitable for smoothing data patterns, if the data plot leaves you with no idea of the relationship between the y- and x-values. There are no statistical tests to assess the goodness of fit of these methods, but it is always better than that of traditional models.

关键词： Non-Linear Effects Clinical Research Logit/Probit Transformation Box Cox Transformation ACE/AVAS Packages Curvilinear Data Spline Modeling Loess Modeling

Investigation of the cytotoxicity,antioxidative and immune-modulatory effects of Ligusticum porteri(Osha) root extract on human peripheral blood lymphocytes

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Journal of Integrative Medicine 2016年第6期14卷 465-472页

作者： khanh Nguyen Jean Sparks Felix O.Omoruyi Department of Life Sciences College of Science and EngineeringTexas A&M University-Corpus Christi

OBJECTIVE： Ligusticum ported is a traditional Native American herb. The roots of L. ported are traditionally used in the treatment of many diseases, however, its cytotoxicity, antioxidative and immune- modulatory effects need to be investigated. In this study, we evaluated the effects of the root extract at different doses on human peripheral blood lymphocytes （PBLs）. METHODS： The lymphocytes were incubated with different concentrations of the root extracts （0, 50, 100, 200, and 400 μg/mL） and harvested every 6 h for 2 d （P〈0.05）. The protective effect of the herb against oxidative damage was determined by inducing oxidative stress with the administration of 50 μmol/L of hydrogen peroxide （H202）. RESULTS： Treatments with L. ported at 200 and 400 pg/mL increased the viability of PBLs. The deleterious effect of H2O2 was ameliorated by 400μg/mL L. ported treatment. Addition of 400 μg/mL L. ported reduced lipid peroxidation in stressed PBLs by 94% （P〈0.05）. Treatment with 400 μg/mL of L. ported resulted in a 26.4% increase of reduced glutathione levels. Activities of superoxide dismutase and catalase increased by 17.5% and 55.2% respectively, when stressed PBLs were treated with 400 μg/mL L. ported for 2 d （P〈0.05）. Treatment with 400 μg/mL L. ported increased interferon-γand interleukin-2 expressions in H2O2-challenged PBLs （P〈0.05）, however, the root extract did not cause a significant difference in interleukin-10 levels compared to the control （P〉0.05）. CONCLUSION： The findings suggest that L involving protective effects against oxidative ported might be a potential immune-modulating agent damage.

关键词： Ligusticum porteri root extract cytotoxicity, immunologic oxidative stress immune-modulatory human peripheral blood lymphocytes

Use of light-emitting diode(LED)lamps in combination with metal halide(MH)lamps reduce fuel consumption in the Vietnamese purse seine fishery

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Aquaculture and Fisheries 2021年第4期6卷 432-440页

作者： khanh Q.Nguyen Phu D.Tran Luong T.Nguyen Phuong V.To Corey J.Morris Nha Trang University 2 Nguyen Dinh ChieuNha TrangViet Nam Fisheries and Oceans Canada St.John’sNL A1C 5X1Canada

The use of high-power lights during night-time purse seining is common in ***,metal halide(MH)lamps are used in the commercial fishery to attract fish,however these lights require more energy,have a shorter lifespan,and lower chromatic performance than light emitting diode(LED)*** study examined catch efficiency and fuel consumption when using LED lamps in combination with reduced numbers of MH lamps(10.24 kW),compared to conventional lighting(28.6 kW),used during purse seining off the coast of Ninh Thuan province,*** economic performance associated with using LED lamps in this fishery was also *** found no significant differences in catch rates between the different light treatments,however fuel consumption was significantly *** consumption per nightly trip using LED with MH lamps was 70.8 l(11.1 l/h)compared to114 l(17.45 l/hr)using MH lamps alone,an estimated 37.9%reduction in fuel *** investment in LED lamps by a fishing enterprise will require additional initial costs,however our analysis revealed the financial break-event point can be reached after approximately 101 nightly trips when the fuel price is at the 2015 level of USD$0.74 per *** enterprises can increase their profitability,and reduce CO2 emissions,by using LED lamps in the Vietnamese purse seine fishery.

关键词： LED light Purse seine fishery Fuel consumption Catch comparison Economic efficiency

Safe Vegetable Consumption in Hue City:A Case Study of Food Safety Situation in Vietnam

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Journal of Agricultural Science and Technology(A) 2017年第B10期7卷 119-130页

作者： Nguyen Vinh Truong Tran Thi Bach Thao Tran Thi Anh Tuyet Nguyen Van khanh Tran Quang khanh Van University of Agriculture and Forestry Hue UniversityHue 530000Vietnam Institute of Biotechnology Hue UniversityPhu ThuongPhu VangThua Thien Hue 530000Vietnam

Food safety has become a growing concern for citizens in the modern society when consuming unsafe food that directly impacts public health,life quality and well-being of each *** of Vietnam in general and specially in Hue city have been facing challenge of vegetable unsafety.A survey concerning the consumption of safe vegetables was conducted in Hue city,*** were collected by using a well-structured questionnaire from representative of 30 consumers,30 producers and 10 *** results showed that lettuce,sweet potato and Chinese mustard were identified as the most important vegetables to consumers in Hue *** of the consumers purchased vegetable every *** cost of vegetable in every transaction was about 30,000 *** expenditure has not created a great motivation for developing safe vegetable *** of the consumers in Hue city showed high interest,demand,trust and satisfaction for safe ***,50%of the consumers reported that the price of the safe vegetable was quite expensive and price was not matched with their ***,there were some disadvantages in each stage of vegetable supply *** example,land,seed,capital,cultivation techniques,preliminary processing,preservation,brand name,trademark and place to consume have not met the requirement of high technology production for the supply chain of safe *** chain linking between the production and consumption of vegetables is not *** and consumers do not have closely *** can not be traced to origin and there is no safe *** consumers believe the quality of vegetables depending on the prestige suppliers,such as,the vegetable shops with foreign *** vegetables of farmers are very difficult to be certified for safe *** and suggestions to Hue city are proposed that it is necessary to establish the vegetable production area in Hue *** growers should be supported w

关键词： Food safety vegetable consumption vegetable supplying chain Hue city

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抖音短视频APP越南用户使用行为研究

抖音短视频APP越南用户使用行为研究

作者： HOANG THI khanh NGOC 华南理工大学

学位级别：硕士

随着互联网时代的飞速发展,人们的远距离沟通成本降至最低。人们可以通过各种各样的方法来更新世界上的信息。短视频的出现给人们的日常生活带来很大的转变。在诸多的短视频应运而生中,抖音短视频APP算是后起之秀。抖音短视频APP的出现... 详细信息

随着互联网时代的飞速发展,人们的远距离沟通成本降至最低。人们可以通过各种各样的方法来更新世界上的信息。短视频的出现给人们的日常生活带来很大的转变。在诸多的短视频应运而生中,抖音短视频APP算是后起之秀。抖音短视频APP的出现不仅受到非常多中国内的网民欢迎,而且在国外也成为一种很流行的软件,受很多人的关注,特别是在越南市场。本文以越南用户为研究对象,采用“使用与满足理论”、“技术接受模型”和“拉斯韦尔的5W模型”,综合运用文献分析法、问卷调查法、深度访谈法对抖音短视频越南用户使用行为进行研究。通过调查结果发现,不同性别和不同受教育水平的用户对使用行为无存在显著影响。不同年龄的用户、是否会汉语和是否来过中国留学的用户对使用行为具有显著影响。通过对问卷数据的相关分析验证了感知有用性、感知易用性、感知娱乐性、社会影响、平台满意度、对中国文化感兴趣对用户的使用行为是否存在显著影响,研究得出各变量对用户的使用行为都存在显著影响。其中,对中国文化感兴趣对使用行为的影响最强,社会影响对使用行为的影响最弱。另外,抖音短视频的文化传播特征主要包括:(1)文化内容展示的多领域性,(2)视频展示方式具有创新性,(3)文化形态具有传统文化和现代文化,(4)传播效果具有潜移默化性。同时,抖音短视频在越南取得了传播中国文化的良好的效果。基于以上研究结论,本研究从跨文化传播角度出发,进一步了解抖音短视频越南用户使用行为,在此基础上提出可行性的跨文化传播策略,为中国文化对外传播提供重要的借鉴和参考意义。

关键词：抖音短视频越南用户使用行为影响因素

越南社会工作教育的挑战与应对研究——以胡志明市高校为例

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越南社会工作教育的挑战与应对研究——以胡志明市高校为例

作者： DUONG VAN khanh（杨文庆）南京理工大学

学位级别：硕士

一个多世纪以来,在许多国家社会工作被视为一个专业的工作。当社会出现贫穷、性别不平,以及帮助残疾人、老年人、妇女、孤儿、流浪儿童、虐待儿童等容易受伤者等社会问题时,社会工作应运而生。越南社会工作的诞生和发展也不例外。社会... 详细信息

一个多世纪以来,在许多国家社会工作被视为一个专业的工作。当社会出现贫穷、性别不平,以及帮助残疾人、老年人、妇女、孤儿、流浪儿童、虐待儿童等容易受伤者等社会问题时,社会工作应运而生。越南社会工作的诞生和发展也不例外。社会工作是最近被投入越南的职业培训体系的一个专业。社会工作虽然是新专业,但是培训、研究、社会活动的需求是必要的、多样的、丰富的。几乎全国所有大学、高等学校都设置了社会工作专业。但是事实上,目前在各所学校社会工作培训、研究、教学、学习工作仍然有许多不足之处。本文以胡志明市为例,因为胡志明市可以视为越南最早的社会工作教育的摇篮。这里培养了许多社会工作的人力来服务和满足全国范围内的社会发展需要。本文全面回顾培训课程、教师队伍,课程教材、教学内容、创新培训和研究方法,在培训和研究方面实现国内外的链接与合作对于这门科学的发展前景至关重要。作者通过收集和整合资料、问卷调查以及分析研究结果概括了越南社会工作与社会工作教育的发展现状、形成及发展史、活动需求等;调查胡志明市各所大学社会工作教育现状,同时分析越南在这个职业培训过程中遇到的困难和挑战。另外,作者还了解了包括中国在内的一些对越南社会工作教育发展有影响的发达国家社会工作的发展情况。在此基础上,提出对越南社会工作教育发展的建议。虽然,这些解决方案不够全面整体,但是部分显示出越南社会工作教育的具体情况在将来需要什么发展战略定向。

关键词：越南社会工作社会工作教育挑战高等教育

越南Vietcombank银行借记卡营销策略研究

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越南Vietcombank银行借记卡营销策略研究

作者： Phung Thi Hong khanh 东北大学

学位级别：硕士

借记卡在社会经济生活中的作用越来越突出,已经成为商业银行个人业务最重要的基础产品。目前,随着科学技术的发展和市场开放,全球化、国际和区域经济一体化的趋势正在强劲发展。越南国有商业银行,商业股份制银行和外资银行之间竞争激烈... 详细信息

借记卡在社会经济生活中的作用越来越突出,已经成为商业银行个人业务最重要的基础产品。目前,随着科学技术的发展和市场开放,全球化、国际和区域经济一体化的趋势正在强劲发展。越南国有商业银行,商业股份制银行和外资银行之间竞争激烈。在如此激烈的竞争环境中,客户是银行生存的决定性因素。如果银行赢得客户的信任和忠诚,那么其将会迅速地发展。因此,有效的营销策略和营销活动的实施将吸引新客户,留住现有客户。营销战略正在成为一个业务工具,带来有效的业务成绩。对于Vietcombank而言,近几年营销活动已经引起高管的关注,所以本文针对Vietcombank借记卡的营销战略进行研究。本文共分为七章。第一章介绍选题背景和意义。笔者利用文献研究简要介绍了越南和国外的借记卡营销策略研究现状,并介绍了本文所采用的研究方法和技术路线。第二章阐述了借记卡的基本定义和理论,商业银行的营销策略以及营销策略中使用的模式。第三章概述了越南的借记卡市场以及Vietcombank银行的借记卡业务。本章主要阐述了越南借记卡市场的基本情况,介绍了借记卡交易流程和盈利模式,以及越南借记卡行业的发展方向。本章还概述了 Vietcombank及其借记卡的基本情况。第四章基于运用PEST模型,波特五力模型和价值链分析Vietcombank营销策略,分析Vietcombank的外部和内部环境,并运用SWOT分析模型分析Vietcombank借记卡业务的优势,劣势,机会和威胁,第五章基于前面张姐的分析针对Vietcombank的借记卡推荐营销策略。第6章提出Vietcombank的借记卡营销战略实施,包括加强内部控制体系、资产结构、人力资源,完善客户服务和借记卡发卡流程。第七章是研究结论与展望,总结全文、提出研究的不足之处以及Vietcombank银行借记卡业务的前景。

关键词：营销战略借记卡 Vietcombank 商业银行

Study on Development of Formulated Feed for Improving Growth and Pigmentation of Koi Carp （Cyprinus carpio L,, 1758） Juveniles

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Journal of Life Sciences 2014年第5期8卷 433-441页

作者： Nguyen Van Nguyen Tran Van khanh Pham Duy Hai Research Institute for Aquaculture No. 2 Ho Chi Minh City Vietnam

The aim of the present study was to develop a formulated feed for improving skin pigmentation and growth performance of koi carp juveniles. Two experiments were conducted for determination of an optimal dietary astaxanthin and FM （fish meal） ration for koi carp juveniles. In the first experiment, three isonitrogenous and isoenergetic dietary treatments were designed with three different levels of astaxanthin consisted of 60, 80 and 100 mg/kg and a commercial feed served as a control. For the second experiment, four isonitrogenous and isoenergetic dietary treatments were formulated with graded inclusions of dietary FM replaced from 0% to 60% at 20% increments by SM （soybean meal）, PBM （poultry by-product meal）, and a CD （control diet）. Obtained results demonstrated that skin pigmentation of koi carp juveniles fed the diet containing 80 mg/kg astaxanthin, 36.02% protein, 7.78% lipid, 4.20 Kcal/g GE （gross energy） were more better than those at the diet with lower estaxanthin content and commercial diet. Moreover, the highest growth and feed utilization of fish were observed at this diet with WG （weight gain）, SGR （specific growth rate） and FCR （feed conversion ratio） were 121.80%, 0.95 （%/day） and 1.6, respectively.

关键词： Formulated feed pigmentation fish meal replacement koi carp juveniles.