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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

On a Class of Constacyclic Codes of Length 4p^8 over Fpm[u]/〈 u^a 〉

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Algebra Colloquium 2019年第2期26卷 181-194页

作者： Hai Q. Dinh Bac T. nguyen Songsak Sriboonchitta Division of Computational Mathematics and Engineering Institute for Computational Science Ton Due Thang University Ho Chi Minh City Vietnam Faculty of Mathematics and Statistics Ton Due Thang University Ho Chi Minh City Vietnam nguyen Tat thanh University Ho Chi Minh City Vietnam Department of Basic Sciences University of Economics and Business Administration Thai Nguyen University Thai Nguyen Province Vietnam Faculty of Economics Chiang Mai University Chiang Mai 52000 Thailand

For any odd prime p such that p^m ≡ 3 (mod 4), consider all units Λ of the finite commutative chain ring Ra=Fpm[u]/〈u^a〉=Fp^m+uFp^m+…+u^a1Fp^m that have the form Λ=Λ0 + uΛ1 ++ u^a1 Λa1, where Λ0,Λ1,…,Λa1 p^m,Λ0 ≠ 0,Λ1 ≠ 0. The class of Λ-constacyclic codes of length 4p^s over a is investigated. If the unit Λ is a square, each Λ-constacyclic code of length 4p^s is expressed as a direct sum of a λ-constacyclic code and a λ-constacyclic code of length 2p^s. In the main case that the unit Λ is not a square, we prove that the polynomial x^4 λ0 can be decomposed as a product of two quadratic irreducible and monic coprime factors, where λ^p^s0=Λ0. From this, the ambient ring Ra[x]/is proven to be a principal ideal ring, whose maximal ideals are and , where λ0 =4η^4. We also give the unique self-dual Type 1 Λ-constacyclic codes of length 4p^s over a. Furthermore, conditions for a Type 1 Λ-constacyclic code to be self-orthogonal and dual-containing are provided.

关键词： constacyclic codes dual codes chain rings

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清香战役

清香战役

1957年

作者：（越）阮克庶（nguyen-Khac-Thu）朱礼黄宏才译

来源：汇雅图书（南通市图书馆... 评论

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新年祝福

孔子学院（中英版） 2023年第1期 78-79页

作者：阮玉璃不详

吉祥如意的2023年钟声即将敲响,愿您新的-年有-片健康的天空、一汪友谊的海洋、一段幸福的爱情、一位忠诚的爱人、一番有成的事业、一个美满的家庭。祝您和您的家人在新的一年里万事如意,财源广进,一帆风顺!2023,等不及了!

关键词：吉祥如意祝福爱人

A Study on the Selection of the Logistics Centre Location—Vietnam-Based Logistics Sector

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Management Studies 2020年第2期8卷 121-127页

作者： JSC Sai Gon Hiep Phuoc Port Ho Chi Minh City Viet Nam Ho Thi Thu Hoa nguyen Van Khoang Bui Thi Bich Lien Tran Quang Dao To Thi Hang Le Van thanh To Thi Hang Ho Chi Minh City University of Transport Ho Chi Minh CityViet Nam JSC Sai Gon Hiep Phuoc Port Ho Chi Minh CityViet Nam

Logistics can be considered as the major drive of the *** centres play a significant role in the entire logistics networks from the point of materials sourcing to the point of last mile *** efficiency of a logistics network depends on the existence of logistics centres to connect and integrate entire logistics *** article discusses the importance of selection of the logistics centre location and recommends the procedure to specify the appropriate logistics centre location as a case of Vietnam-based logistics sector.

关键词： logistics centre Vietnam Ho Chi Minh City location

喃字定量研究——以《国音诗集》和《断肠新声》为例

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广西民族师范学院学报 2013年第6期30卷 52-55页

作者：阮廷贤河内国家大学外国语大学

人们通过对阮廌的《国音诗集》和阮攸的《断肠新声》这两部作品中的喃字进行统计、分析,结合前人的研究成果,可以回答以下几个问题:一是在一部文学作品中一般有多少喃字;二是这些喃字中有多少借用字、自造字;借用字、自造字的每一小类... 详细信息

人们通过对阮廌的《国音诗集》和阮攸的《断肠新声》这两部作品中的喃字进行统计、分析,结合前人的研究成果,可以回答以下几个问题:一是在一部文学作品中一般有多少喃字;二是这些喃字中有多少借用字、自造字;借用字、自造字的每一小类占多少比例;三是在不同时代的作品中,这些数字有没有变化,为何变化等。

关键词：喃字自造字借用字字数比例

Establishing the Forecasting Model with Time Series Data Based on Graph and Particle Swarm Optimization

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Journal of Computer Science Research 2023年第2期5卷 1-15页

作者： Le Thi Luong Tran Thi thanh Nghiem Van Tinh Bui Thi Thi Faculty of Electronic Thai Nguyen University of TechnologyThai Nguyen250000Vietnam

In recent years,a wide variety of fuzzy time series(FTS)forecasting models have been created and recommended to handle the complicated and ambiguous challenges relating to time series data from real-world ***,the accuracy of a model is problem-specific and varies across data *** a model’s precision varies between different data sets and depends on the situation at *** though many models assert that they are better than statistics and a single machine learning-based model,increasing forecasting accuracy is still a challenging *** the fuzzy time series models,the size of the intervals and the fuzzy relationship groups are thought to be crucial variables that affect the model’s forecasting *** study offers a hybrid FTS forecasting model that makes use of both the graph-based clustering technique(GBC)and particle swarm optimization(PSO)for adjusting interval lengths in the universe of discourse(UoD).The suggested model’s forecasting results have been compared to those provided by other current models on a dataset of enrollments at the University of *** all orders of fuzzy relationships,the suggested model outperforms its counterparts in terms of forecasting accuracy.

关键词： Forecasting FTS Fuzzy relationship group GBC Enrolments COVID-19

酮病复方制剂对奶牛酮病抗氧化性能的影响研究

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安徽农业科学 2014年第28期42卷 9783-9785页

作者：宿孝奇黄云飞阮氏青海左宗辉李潇杨蓉何宝祥广西大学动物科学技术学院广西南宁530005

[目的]研发治疗奶牛酮病的新方法、新药物,从抗氧化性能方面揭示广西大学动物科学技术学院临床实验室自主研发的酮病治疗复方制剂——"酮康"对奶牛酮病的疗效。[方法]2013年6月,采用改良水杨醛比色法检测广西南宁某规模化奶牛场围产期奶... 详细信息

[目的]研发治疗奶牛酮病的新方法、新药物,从抗氧化性能方面揭示广西大学动物科学技术学院临床实验室自主研发的酮病治疗复方制剂——"酮康"对奶牛酮病的疗效。[方法]2013年6月,采用改良水杨醛比色法检测广西南宁某规模化奶牛场围产期奶牛46头,其中9头为酮病牛,并将其分为治疗组(6头)和阳性对照组(3头),另从37头中选取6头与治疗组奶牛体况相似、胎次相近、产奶量接近的奶牛作为健康对照组。试验期间,治疗组每天灌服"酮康"400 ml,连续治疗5 d,阳性对照组、健康对照组均不灌服。分别采血检测试验前后奶牛各抗氧化酶活性(CAT、GPX、MDA、SOD、TAC、VE)。[结果]治疗后治疗组奶牛血酮含量明显降低,血糖明显上升,SOD和GPX的活性明显升高,差异极显著(P0.05),虽稍低于健康对照组和阳性对照组,但差异也不显著(P>0.05)。VE含量明显低于健康对照组,差异极显著(P<0.01),而对照组治疗后VE含量均比治疗前高。治疗组在治疗后TAC和CAT活性均低于阳性对照组,差异极显著(P<0.01)[结论]"酮康"对降低酮病奶牛的血酮含量、提高血糖含量和改善抗氧化性能的作用明显,效果良好。若不进行治疗和科学的饲养管理,酮病将持续伤害奶牛。

关键词：奶牛酮病治疗抗氧化

越南东北部Cat Ba岛泥盆系-石炭系过渡层的初探(英文)

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地球学报 2012年第S1期33卷 38-38页

作者： Toshifumi KOMATSU Reishi TAKASHIMA TA Hoa PHUONG Tran Huyen DANG Duc Phong nguyen Huu Hung nguyen Satoru KATO Kento HIRATA Takumi MAEKAWA Graduate School of Science and Technology Kumamoto UniversityKumamoto 806-8555Japan The Center for Academic Resources and Archives Tohoku University Museum Tohoku UniversityAramaki Aza Aoba 6-3Aoba-kuSendai 980-8578Japan College of Sciences Vietnam National University334 Nguyen TraiThanh XuanHanoi Vietnam Vietnam Institute of Geosciences and Mineral Resources(VIGMR) HanoiVietnam Vietnam National Museum of Nature(VNMN) HanoiVietnam

The Pho Han Formation is exposed on southern Cat Ba Island,Hai Phong Province in northeastern Vietnam,and intercalates the Devonian and Carboniferous(D-C) boundary(Ta and Doan,2007;Komatsu et al.,2012).The D-C boundar... 详细信息

关键词： D-C boundary Conodont δ13C Cat Ba Island Vietnam