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Research on the Development Model of the Adaptive Housing to Flooding/High Tides and Applicability to Some Types of Housing in Nha Be District,Ho Chi Minh City,Vietnam

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Journal of Civil Engineering and Architecture 2021年第12期15卷 627-640页

作者： le-Minh Ngo tan-hanh le Vinh-Nghi Truong Faculty of Civil Engineering Ton Duc Thang UniversityHo Chi Minh City 700000Vietnam Faculty of Architecture University of Architecture Ho Chi Minh City196 PasteurPhường 6Quận 3Ho Chi Minh CityVietnam Tieng Duc Dshi Education Consulting Service Trading Company Limited Ho Chi Minh City 700000Vietnam

Ho Chi Minh City(HCMC)has a high density of rivers and canals,so it is often strongly affected by high *** rapid urbanization process of a city with more than 13 million people,along with human activities with rivers such as accretion,river encroachment,sand mining,construction of houses close to the riverbanks,...that stop the flow of rivers and canals,causes high tides to rise quickly and recede slowly,therefore difficult to *** residential areas of people along the canals in the city are clearly affected by the phenomenon of high tides and it causes many difficulties to people’s lives,especially people living in Nha Be district-a southeast district of HCMC,where the terrain is low-lying,and also the water collection area of the whole *** is an area that is expected to be flooded more and more heavily due to the increasingly strong impact of high *** inevitable consequence of the flooding-high tide phenomenon is that the living and business environment is not guaranteed,people’s life quality does not improve,and a part of the residents have to ***,how to build a housing model that adapts to flooding/high tide in Nha Be District,HCMC against the impacts of high tides?This article is a qualitative study using mixed methods including Document Synthesis&Comparison,Questionnaire,Interview,and Observation *** investigation,survey,and assessment on the impact of high tides on housing in Nha Be District,HCMC was carried out in the year *** study aims to find out the experiences in building models of houses that can adapt to flood/high tide and their applicability to some types of houses in Nha Be District,*** solutions are aimed at improving the quality of life of people living along the canals of Nha Be District,HCMC and effectively contribute to sustainable socio-economic development.

关键词： Development model adaptive housing flooding high tides Nha Be district HCMC.

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Optimization, equilibrium, adsorption behavior and role of surface functional groups on graphene oxide-based nanocomposite towards diclofenac drug

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Journal of Environmental Sciences 2020年第7期32卷 137-150页

作者： Thuan Van Tran Duyen Thi Cam Nguyen hanh TNle Dai-Viet NVo Sonil Nanda Trinh Duy Nguyen Nguyen Tat Thanh Hi-Tech Institute Nguyen Tat Thanh UniversityHo Chi Minh City 755414Viet Nam Center of Excellence for Green Energy and Environmental Nanomaterials(CE@GrEEN) Nguyen Tat Thanh UniversityHo Chi Minh City 755414Viet Nam Institute of Hygiene and Public Health Ho Chi Minh City 700000Viet Nam Department of Chemical and Biochemical Engineering University of Western OntarioLondonOntarioCanada

Aquatic contamination of diclofenac(DCF),an emergent non-steroidal anti-inflammatory drug(NSAIDs),can result in adverse effects to many ecosystems through ***,introducing effective remediation techniques to sequester the pharmaceutical wastes is highly fundamental to prevent their accumulation in the ***,adsorption has been presented as a green and efficient ***,we report the characterization and application of the novel magnetic nanocomposite(GO@CoFe2O4)derived from cobalt-based ferrite(CoFe2O4)and graphene oxide(GO)for DCF *** the optimization procedure,the response surface methodology(RSM)was adopted to investigate the impacts of DCF concentration(1.6-18.4 mg/L),DCF dosage(0.08-0.92 g/L),and solution pH(2.6-9.4)to find the optimum conditions for DCF removal,at 10.5 mg/L,0.74 g/L,and pH 4,*** the adsorption experiments,the kinetic,isotherm,thermodynamic,and intraparticle diffusion models were systematically ***,we have elucidated the role of functional groups on the surface of GO@CoFe2O4 in enhancing the adsorption of DCF *** good removal efficiency(up to 86.1%),high maximum adsorption capacity(32.4 mg/g),GO@CoFe2O4 can be a potential candidate to eliminate DCF drug from water.

关键词： Diclofenac sodium Graphene oxide Magnetic nanocomposite Response surface methodology Pharmaceuticals adsorption

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Clinical validation of the early embryo viability assessment system: Analysis for the blastocyst morphology and pregnancy outcomes

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Asian pacific Journal of Reproduction 2024年第5期13卷 219-227页

作者： Vu D Hop An M Cuong Phi T T Anh Nguyen T L Huong le Hoang Nguyen V hanh Assisted Reproductive Technology Centre Tam Anh General HospitalHanoiVietnam Institute of Biotechnology Vietnam Academy of Science and TechnologyHanoiVietnam

Objective:To determine the relationship between the early embryo viability assessment(EEVA)and blastocyst morphological parameters and pregnancy ***:This retrospective cohort study was conducted on 291 intracytoplasmic sperm injection cycles including 2522 embryos with indications of prolonging embryo culture to the blastocyst stage in the Genea embryo review incubator,and 511 single vitrified-warmed blastocyst transfer cycles from January 2020 to June *** EEVA system produced an EEVA score from E1(best)to E5(worse)for the potential of blastocyst *** morphology was *** association between the EEVA score and each type of blastocyst morphology,implantation rate,clinical pregnancy,and ongoing pregnancy were assessed using generalized estimating ***:The inner cell mass A(ICM A),trophectoderm A(TE A),blastocoele expansion degree of 3,4,5,6,7 rates were higher with lower the EEVA *** adjusted odd ratio(aOR)(E5 vs E1)was 0.3 for ICM A,0.174 for TE A and 0.210 for BL3,4,5,6,7(all P<0.001),suggesting a significant association between lower EEVA scores and improved embryo *** implantation,clinical pregnancy,and ongoing pregnancy rate were also higher with lower the EEVA *** aOR of E5 vs E1 was 0.245 for implantation,0.185 for clinical pregnancy and 0.200 for ongoing pregnancy rate(P<0.001).Conclusions:There were associations between blastocyst morphology,pregnancy outcome and EEVA *** good blastocyst morphology and pregnancy outcomes are higher with lower the EEVA score.

关键词： Automated embryo assessment Blastocyst Early embryo viability assessment Genea embryo review incubator Morphology Pregnancy outcomes Timelapse

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Experimental assessment of a 3-D plenoptic endoscopic imaging system

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Chinese Optics letters 2017年第5期15卷 68-72页

作者： hanh N. D. le Ryan Decker Axel Krieger Jin U. Kang Electrical and Computer Engineering Department Johns Hopkins University Baltimore MD 21218 USA Sheikh Zayed Institute for Pediatric Surgical Innovation Children's National Health System Washington DC 20010 USA

All endoscopic imaging system using a plenoptic technique to reconstruct 3-D information is demonstrated and analyzed in this letter. The proposed setup integrates a clinical surgical endoscope with a plenoptic camera to achieve a depth accuracy error of about 1 mm and a precision error of about 2 mm, within a 25 mm×25 mm field of view, operating at 11 frames per second.

关键词： Experimental assessment of a 3-D plenoptic endoscopic imaging system FOV MLA

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Novel Time Series Bagging Based Hybrid Models for Predicting Historical Water levels in the Mekong Delta Region, Vietnam

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Computer Modeling in Engineering & Sciences 2022年第6期131卷 1431-1449页

作者： Nguyen Thanh Hoan Nguyen Van Dung Ho le Thu Hoa Thuy Quynh Nadhir Al-Ansari Tran Van Phong Phan Trong Trinh Dam Duc Nguyen Hiep Van le hanh Bich Thi Nguyen Mahdis Amiri Indra Prakash Binh Thai Pham Institute of Geography Vietnam Academy of Science and TechnologyHanoi10000Viet Nam Department of Civil Environmental and Natural Resources EngineeringLulea University of TechnologyLulea97187Sweden Institute of Geological Sciences Vietnam Academy of Science and Technology(VAST)Dong DaHanoi10000Viet Nam University of Transport Technology Thanh XuanHa Noi10000Viet Nam Department of Watershed&Arid Zone Management Gorgan University of Agricultural Sciences&Natural ResourcesGorgan***Iran DDG(R)Geological Survey of India Gandhinagar382010India

Water level predictions in the river,lake and delta play an important role in flood *** year Mekong River delta of Vietnam is experiencing flood due to heavy monsoon rains and high *** subsidence may also aggravate flooding problems in this ***,accurate predictions of water levels in this region are very important to forewarn the people and authorities for taking timely adequate remedial measures to prevent losses of life and *** are so many methods available to predict the water levels based on historical data but nowadays Machine learning(ML)methods are considered the best tool for accurate *** this study,we have used surface water level data of 18 water level measurement stations of the Mekong River delta from 2000 to 2018 to build novel time-series Bagging based hybrid ML models namely:Bagging(RF),Bagging(SOM)and Bagging(M5P)to predict historical water levels in the study *** of the Bagging-based hybrid models were compared with Reduced Error Pruning Trees(REPT),which is a benchmark ML *** data of 19 years period was divided into 70:30 ratio for the *** data of the period 1/2000 to 5/2013(which is about 70%of total data)was used for the training and for the period 5/2013 to 12/2018(which is about 30%of total data)was used for testing(validating)the *** of the models was evaluated using standard statistical measures:Coefficient of Determination(R2),Root Mean Square Error(RMSE)and Mean Absolute Error(MAE).Results show that the performance of all the developed models is good(R2>0.9)for the prediction of water levels in the study ***,the Bagging-based hybrid models are slightly better than another model such as ***,these Bagging-based hybrid time series models can be used for predicting water levels at Mekong data.

关键词： Computational techniques bagging water level time series algorithms

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A study implementing real-time PCR to identify Strongyloides species of third-stage larvae in human stool samples from Southern Vietnam

Infectious Medicine

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Infectious Medicine 2023年第3期2卷 229-236页

作者： le Duc Vinh Nguyen Kim Thach Huynh Hong Quang Do Nhu Binh Tran Thi Duc hanh Nguyen Minh Toàn Nguyen Trung Tuyen Nguyen Thu Huong Department of Medical Parasitology Pham Ngoc Thach University of MedicineHo Chi Minh City 700000Vietnam Department of Fundamental Chemistry-Biochemistry Pham Ngoc Thach University of MedicineHo Chi Minh City 700000Vietnam Clinical Epidemiology Research Unit Institute of MalariologyParasitologyand Entomology Quy NhonBinh Dinh 55000Vietnam Department of Infectious Disease Military Hospital 103Hanoi 100000Vietnam Department of Epidemiology Hanoi University of Public HealthHanoi 100000Vietnam Department of Microbiology-Parasitology Hanoi University of Public HealthHanoi 100000Vietnam Department of Medicine University of Medicine and PharmacyVietnam National UniversityHanoi100000 Vietnam

Background:Strongyloidiasis,a neglected disease caused by intestinal nematodes of the genus,is endemic to tropical and subtropical areas such as *** methods only identify the genus,while DNA-molecular techniques are susceptible in Strongyloides *** study aims to determine the prevalence of dominant Strongyloides species among the population in Duc Hoa district,Long An,***:A cross-sectional study used 1190 stool specimens collected from July 2017 to November *** samples were transported within 2 h,stored at 2-8℃,and processed within 48 h for microscopy smear and culture at the Laboratory of Medical Parasitology,Pham Ngoc Thach University of Medicine(PNT).Then all positive samples with the above 2 methods were verified by real-time PCR ***-time PCR amplification was conducted at the Laboratory of Molecular Biology,***:Direct microscopy and modified Harada-Mori culture detected Strongyloides *** in 79/1190 sam-ples(6.6%).About 94.2%of the DNA samples were Strongyloides stercoralis,2.9%were co-infections with Strongy-loides ratti and ***,and 2.9%were patients with *** identity of 12/14 sequences was confirmed as *** with a high level of similarity(91.3%-100%)and over 98%for ***:DNA-molecular techniques and sequence analysis are highly suitable for identifying Strongyloides species isolated from stool *** is remarkable evidence of the presence of zoonosis *** disease in human,not just the known *** is likely to result in a certain proportion of people being infected by this animal-borne infectious pathogen.

关键词： Strongyloidiasis Strongyloides stercoralis Strongyloides ratti DNA-molecular techniques

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Sustainable Construction --An International Comparison of Civil Engineering Students

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Journal of Civil Engineering and Architecture 2012年第12期6卷 1648-1653页

作者： Thanh Trung le Chris Ian Goodier hanh Huu Pham Marios N. Soutsos Kien Ton Tong School of Civil and Building Engineering Loughborough University Leicestershire LE112NS UK Department of Building Materials National University of Civil Engineering (NUCE) Hanoi 111110 Vietnam School of Planning Architecture and Civil Engineering Queen's University Northern Ireland BT9 5AG UK

Sustainable construction in the future will be influenced significantly by the beliefs and actions of civil engineering students studying at university today. A comparative investigation of the appreciation and attitudes regarding sustainable construction of civil engineering students at The NUCE （National University of Civil Engineering） in Vietnam, and the Universities of Loughborough and Liverpool in the UK were therefore conducted. Results indicate that students at all three universities appreciate the importance of the development of sustainable construction and have positive attitudes with regards to sustainability. Construction design and appropriate use of materials were two issues generally considered the most important with regards to sustainability, but were also thought to be adequately covered on the courses in all three institutions.

关键词： Sustainable construction education sustainability civil engineering Vietnam UK.

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鼻部硅胶肉芽肿的治疗现状及前景(英文)

鼻部硅胶肉芽肿的治疗现状及前景(英文)

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第十次全国中西医结合耳鼻咽喉科学术会议

作者： le hanh CHO’ RY医院耳鼻喉-头颈外科胡志明市美容外科学会胡志明市 Pham Ngoc Thach医科大学

Subcutaneous injection of liquid silicone for cosmetic augmentation procedures is common in Asian countries for years. Tissue inflammatory reaction has had a bad influence on society because: *** has been a large number of patients,over many years. ***,allergic reactions worsen health and decrease labor productivity. *** cosmetic damage on the face may isolate patients from their community. *** is difficult because both eradication of the diseased tissue and restoration of the cosmetic appearance of the nasal pyramid must be done simultaneously. *** treatments result in recurrences and/or aggravate the situation and cause further serious cosmetic sequelae. Objectives:To design a surgical method to trial the eradication of tissue inflammatory reactions and restore the cosmetic effects to patients. Method:Nine hundreds and eighty patients were operated on to remove siliconoma of the nose for cosmetic *** study outlines the general principe of considering the siliconoma as a neoplastic tissue that is to be radically removed,along with restoring the reasonable cosmetic effects for the patients. A classification of the patients according to the seriousness of the disease,was *** vestibular incision,external rhinoplastic approach,degloving approach were employed in most of the operations. Tissue autograft - and homograft(cartilage,dura mater,fascia...) and some types of biocompatible materials(silicone elastomer,Gore-tex...) were used for reconstruction of nasal pyramids and the cheeks. Results:The 1 to 10 years follow-up demonstrated good and satisfactory results wim the halt of inflammatory reactions and restoration of cosmetic effects in more than 90%of cases. Conclusions:This serious pathology can be treated with encouraging results with surgical treatment based on radical removal of diseased tissue following an appropriate *** removal of diseased tissue and reconstruction with composite

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Establishment of Community-Based Dissemination Model and Its Effective Function for Sustainable Food Security and Poverty Reduction

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Journal of Agricultural Science and Technology(B) 2020年第2期10卷 83-88页

作者： Thi My Hoa Do Thi Thuc Oanh le Thi hanh Dung Cao Nobuko Otsuki Masumi Kano Foundation for International Development/Relief(FIDR) Vietnam OfficeDa NangVietnam Foundation for International Development/Relief(FIDR) Tokyo OfficeTokyoJapan

Vietnam ranks as one of the largest rice exporters in the *** major deltas,the Mekong River Delta and the Red River Delta,contribute around 70%of the country’s rice production and 90%of its rice exports,while people in the mountainous areas of Central Vietnam still suffer from food shortage for three to four months per *** combat this incongruous situation,the Foundation for International Development/Relief(FIDR),a Japan-based non-governmental organization(NGO),launched a project to introduce system of rice intensification(SRI)methods and developed the community-based dissemination(CBD)*** of the difficulties that the government and aid agencies generally face is to create an effective and sustainable dissemination model,when the newly-introduced technology is totally unfamiliar to targeted region and *** consists of 54 ethnic groups,and 14%of the population is comprised of 53 ethnic minorities,mainly living in mountainous *** 50%of them still live below the poverty line and are threatened by food *** their cultural context,it is hard to adapt to the new concepts of farming,and they are not used to paddy rice cultivation *** the result of the project,the model successfully reduced the food shortage of 1.5 months less in average with more than 4,000 households *** model is now turned over to the local government as a case of sustainable management *** paper aimed to examine what made the model effectively function.

关键词： System of rice intensification community-based dissemination model sustainable management practices

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Compensation of Zn substitution and secondary phase controls effective mass and weighted mobility in In and Ga co-doped ZnO material

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Journal of Materiomics 2021年第4期7卷 742-755页

作者： Oanh Kieu Truong le Anh Tuan Thanh Pham Ngoc Kim Pham Trang Huyen Cao Pham Truong Huu Nguyen Dung Van Hoang hanh Kieu Thi Ta Dai Cao Truong Hoa Thi Lai Thuy Dieu Thi Ung Vinh Cao Tran Thang Bach Phan aboratory of Advanced Materials University of ScienceHoChiMinh City700000Viet Nam Vietnam National University HoChiMinh City700000Viet Nam Faculty of Physics and Engineering Physics University of ScienceHoChiMinh City700000Viet Nam Faculty of Materials Science and Technology University of ScienceHoChiMinh City700000Viet Nam Center for Innovative Materials and Architectures(INOMAR) HoChiMinh CityViet Nam Institute of Materials Science Vietnam Academy of Science and TechnologyHanoi100000Viet Nam

Conductivity s and thermal conductivity k are directly related to carrier concentration while Seebeck coefficient S is inversely proportional to carrier ***,improving thermoelectric(TE)performance is ***,the first-time analysis of secondary phase-controlled TE performance in terms of density-of-state effective mass m*d,weighted mobility mw and quality factor B is discussed in ZnO *** results show that the secondary spinel phase Ga2O_(3)(ZnO)9 not only impacts on k but also on s and S at high temperature,while the effect of carrier concentration seem to be dominant at low *** the high-spinel-segregation sample,a compensation of dopant atoms from the spinel to substitutional sites in the ZnO matrix at high temperature leads to a low decreased rate of temperaturedependent m**** compensation process also induces a band sharpening,a small mw reduction,and a large B *** a result,In and Ga co-doped ZnO bulk with the highest spinel segregation achieves the greatest PF improvement by 112.8%,owing to enhanced Seebeck coefficient by 110%as compared to the good Zn-substitution sample.

关键词： Thermoelectrics In and Ga co-Doped ZnO Secondary phase Zn substitution DOS effective Mass Weighted mobility

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