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Synchronous rectal adenocarcinoma and intestinal mantle cell lymphoma:A case report

World Journal of Clinical Cases 2023年第24期11卷 5772-5779页

作者： Kim-van Vu Nguyen-van Trong Nguyen-Thi Khuyen Do Huyen Nga hoang Anh Nguyen Tien Trung PhamTrung Thong Nguyen minh Duc Department of General Surgery Vietnam National Cancer HospitalHa Noi 100000Viet Nam Department of Practical Surgery Hanoi Medical UniversityHa Noi 100000Viet Nam Department of Oncology Hanoi Medical UniversityHa Noi 100000Viet Nam Pathology and Molecular Biology Center Vietnam National Cancer HospitalHa Noi 100000Viet Nam Department of Hematologic Oncology Vietnam National Cancer HospitalHa Noi 100000Viet Nam Department of Radiology Pham Ngoc Thach University of MedicineHo Chi Minh City 700000Viet Nam

BACKGROUND Mantle cell lymphoma(MCL)of the gastrointestinal tract is a rare malignancy,accounting for about 0.2%of malignant colorectal *** synchronous with rectal adenocarcinoma is extremely *** know of only a few cases reported in the *** describe the case of a patient with synchronous rectal adenocarcinoma and intestinal *** SUMMARY A 63-year-old man was admitted to our hospital due to abdominal pain and hematochezia over the past *** patient was diagnosed with middle rectal cancer cT2N0M0 and underwent ***,we found a large tumor in the small intestine during *** patient underwent total mesorectal excision for rectal cancer and resectioning of the ileal segment containing the large *** and immunohistochemistry revealed the presence of both rectal adenocarcinoma and pathognomonic MCL stage IIE presenting as multiple lymphomatous *** patient subsequently underwent RDHAP/RCHOP chemotherapy and was maintained with rituximab.A Positron Emission Tomography and Computed Tomography(PET/CT)scan showed that the disease responded well to treatment without tumor-increased metabolism in the gastrointestinal *** Synchronous rectal adenocarcinoma and intestinal MCL presenting as multiple lymphomatous polyposis are extremely *** is often discovered fortuitously when rectal cancer is *** coexistence of these tumors poses treatment challenges.

关键词： Mantle cell lymphoma Multiple lymphomatous polyposis Rectal adenocarcinoma Synchronous Gastrointestinal tract Case report

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Determination of groundwater solute transport parameters in finite element modelling using tracer injection and withdrawal testing data

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Journal of Groundwater Science and Engineering 2021年第4期9卷 292-303页

作者： van hoang Nguyen Institute of Geological Sciences-Vietnam Academy of Science and Technology HanoiVietnam

The groundwater tracer injection and withdrawal tests are often carried out for the determination of aquifer solute transport ***,the parameter analyses encounter a great difficulty due to the radial flow nature and the variability of the temporal boundary *** adaptive methodology for the determination of groundwater solute transport parameters using tracer injection and withdrawal test data had been developed and illustrated through an actual *** methodology includes the treatment of the tracer boundary condition at the tracer injection well,the normalization of tracer concentration,the groundwater solute transport finite element modelling and the method of least squares to optimize the *** application of this methodology was carried out in a field test in the South of Hanoi *** tested aquifer is Pleistocene aquifer,which is a main aquifer and has been providing domestic water supply to the city since the French *** porosity of 0.31,longitudinal dispersivity of 2.2 m,and hydrodynamic dispersion coefficients from D=220 m^(2)/d right outside the pumping well screen to D=15.8 m^(2)/d right outside the tracer injection well screen have been obtained for the aquifer at the test *** minimal sum of squares of the differences between the observed and model normalized tracer concentration is 0.00119,which is corresponding to the average absolute difference between observed and model normalized concentrations of 0.0355(while 1 is the worst and 0 is the best fit).

关键词： Groundwater solute transport Tracer injection Effective porosity Longitudinal dispersivity Flow distortion coefficient Normalized concentration

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An isogeometric analysis approach for dynamic response of doubly-curved magneto electro elastic composite shallow shell subjected to blast loading

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Defence Technology（防务技术） 2024年第11期41卷 159-180页

作者： Pham hoang Tu Tran van Ke Vu Khac Trai Le Hoai Faculty of Automotive Engineering School of TechnologyVan Lang UniversityHo Chi Minh City 700000Viet Nam Faculty of Mechanical Engineering Le Quy Don Technical UniversityHanoi 100000Viet Nam Faculty of Engineering and Technology Nguyen Tat Thanh UniversityHo Chi Minh City 700000Viet Nam HUTECH Institute of Engineering HUTECH UniversityHo Chi Minh City 700000Viet Nam

For the first time, the isogeometric analysis(IGA) approach is used to model and analyze free and forced vibrations of doubly-curved magneto-electro-elastic(MEE) composite shallow shell resting on the visco-Pasternak foundation in a hygro-temperature environment. The doubly-curved MEE shallow shell types include spherical shallow shell, cylindrical shallow shell, saddle shallow shell, and elliptical shallow shell subjected to blast load are investigated. The Maxwell equation and electromagnetic boundary conditions are used to determine the vary of the electric and magnetic potentials. The MEE shallow shell's equations of motion are derived from Hamilton's principle and refined higher-order shear theory. Then, the IGA method is used to derive the laws of natural frequencies and dynamic responses of the shell under various boundary conditions. The accuracy of the model and method is verified through reliable numerical comparisons. Aside from this, the impact of the input parameters on the free and forced vibration of the doubly-curved MEE shallow shell is examined in detail. These results may be useful in the design and manufacture of military structures such as warships, fighter aircraft, drones and missiles.

关键词： IGA approach Free and forced vibration Doubly-curved MEE shallow shell Blast load

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Discussion on “Analysis of Bingham fluid radial flow in smooth fractures”[J Rock Mech Geotech Eng 12(2020) 1112e1118]

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第4期13卷 937-944页

作者： van Thanh hoang Wankun Liu Jang Min Park School of Mechanical Engineering Yeungnam UniversityDaehak-ro 280Gyeongsan38541Republic of Korea Department of Mechanical Engineering The University of Danang-University of Science and TechnologyNguyen Luong Bang Street 54DanangViet Nam

Recently,Zou et al.(2020 a)published a theoretical analysis on the radial flow of a Bingham fluid,where they argued that the classical analysis by Dai and Bird(1981)violates the mass *** present discussion aims to clarify this conflict between those two *** is noted that Zou et al.(2020 a)presumed the gap-wise mass flux is negligible in the mass conservation equation,while Dai and Bird(1981)did not require so in their model,and this is found to be the origin of the *** fact,Dai and Bird(1981)’s model is shown to not violate the mass ***,those two models should be viewed as separate models derived from different *** of the major difference between the two models are discussed.

关键词： Rock grouting Radial flow Bingham fluid Analytical solution

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Fabrication and Characterization of Multi-layer Heat Mirror with Photocatalytic Properties

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Chinese Physics Letters 2009年第11期26卷 152-155页

作者： Tran Le Tuan Tran Huu Chi Nguyen Dac Ngoc Son Luu minh Nam hoang Dinh Quan Nguyen Department of Applied Physics College of Natural Science National University of He Chi Mirth City 227 Nguyen Van Cu District 5 Ward 4 He Chi Minh City Vietnam Department of Chemical Engineering College of Technology National University of He Chi Minh City 168 Ly Thuong Kiet District 10 Ho chi Minh City Vietnam

A novel TiO2（5）/TiO2（buffer）/Ti（4）/Ag（3）/Ti（2）/TiO2（1） multi-layer film coating with corning glass is designed and fabricated by a dc magnetron sputtering method as a renovation of the well-known TiO2/Ti/Ag/Ti/TiO2 system in order to obtain a heat mirror system with photocatalytic properties due to sufficient thickness of the Ti02 layer. The outer TiO2 layer is fabricated in two steps, possibly claimed as two layers TiO2（5） and TiO2（buuer）, among which TiO2（buffer） the 70-nm-thick layer deposited in poor oxygen effectively minimizes the oxidation toward its neighbor Ti（4） layer. The optimal total thickness of the TiO2（5） and TiO（buffer） di-layer is found to be 300nm to yield a highly photo-catalytic property of the film without affecting the optical properties considerably. This multi-layer film can transmit light of above 75-85% in the visible spectrum （380 ≤ λ≤ 760 nm） and reflect radiation of above 90% in the infrared spectrum （ λ≥760 nm）. Such multi-layer coatings are strongly recommended not only as promising transparent heat mirrors but also as photo-catalytic films for architectural window coatings.

关键词： Condensed matter: electrical magnetic and optical Surfaces interfaces and thin films Chemical physics and physical chemistry

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Constructing an AI Compiler for ARM Cortex-M Devices

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Computer Systems Science & Engineering 2023年第7期46卷 999-1019页

作者： Rong-Guey Chang Tam-van hoang Department of Computer Science and Information Engineering National Chung Cheng UniversityChia-YiTaiwan

The diversity of software and hardware forces programmers to spend a great deal of time optimizing their source code,which often requires specific treatment for each *** problem becomes critical on embedded devices,where computational and memory resources are strictly *** play an essential role in deploying source code on a target device through the *** this work,a novel backend for the Open Neural Network Compiler(ONNC)is proposed,which exploits machine learning to optimize code for the ARM Cortex-M *** backend requires minimal changes to Open Neural Network Exchange(ONNX)*** novel optimization techniques are also incorporated in the backend,such as quantizing the ONNX model’s weight and automatically tuning the dimensions of operators in *** performance of the proposed framework is evaluated for two applications:handwritten digit recognition on the Modified National Institute of Standards and Technology(MNIST)dataset and model,and image classification on the Canadian Institute For Advanced Research and 10(CIFAR-10)dataset with the AlexNet-Light *** system achieves 98.90%and 90.55%accuracy for handwritten digit recognition and image classification,***,the proposed architecture is significantly more lightweight than other state-of-theart models in terms of both computation time and generated source code *** the system perspective,this work provides a novel approach to deploying direct computations from the available ONNX models to target devices by optimizing compilers while maintaining high efficiency in accuracy performance.

关键词： Open neural network compiler backend ARM Cortex-M device handwritten digit recognition image classification

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Fuzzy Multi-Criteria Decision Making for Solar Power Plant Location Selection

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Computers, Materials & Continua 2022年第9期72卷 4853-4865页

作者： Thai hoang Tuyet Nhi Chia-Nan Wang Nguyen van Thanh Department of Industrial Engineering National Kaohsiung University of Science and Technology80778Taiwan Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam

Vietnam is one of Southeast Asian countries with a rapid GDP growth rate,ranging from 6.5%to 7%annually,leading to an average increase in energy demand of 11%per *** demand creates many new opportunities in the energy industry,especially renewable energy,to ensure sustainable development in the future for the country with applications of solar energy growing at the present,and other opportunities to expand in the *** Vietnam,thanks to favorable weather,climate,terrain characteristics and many preferential support policies,there are many great opportunities in the field of solar energy exploitation and *** selection is an important problem in all renewable energy ***,the author proposed a fuzzy Multi-criteria Decision-Making Model(MCDM)model for solar power plant location selection in this study,and as a result,location 5 is the optimal *** contribution of this study is to propose a MCDM for solar power plant location selection in Vietnam under fuzzy environmental conditions.

关键词： Solar power multi-decision topsis fanp fuzzy theory

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Simulation of stabilizing process of dielectric nanoparticle in optical trap using counter-propagating pulsed laser beams

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Chinese Optics Letters 2010年第3期8卷 332-334页

作者： Ho Quang Quy Mai van Luu hoang Dinh Hai Donan Zhuang Institute of Applied PhysicsNEWTECHPRO Vietnam Academy of Science and Technology Faculty of PhysicsVinh University Pedagogical College of Nghean Department of PhysicsKing Mingkut's University of Technology Thonburi

The stabilizing process of glass particle in water by optical trap using the pulsed counter-propagating Gaussian beams is investigated. The influence of the optical power and the particle dimension on the rate and tim... 详细信息

关键词： Simulation of stabilizing process of dielectric nanoparticle in optical trap using counter-propagating pulsed laser beams

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Fuzzy MCDM Model for Selection of Infectious Waste Management Contractors

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Computers, Materials & Continua 2022年第8期72卷 2191-2202页

作者： Nguyen van Thanh Nguyen hoang Hai Nguyen Thi Kim Lan Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam International Education Institute Van Lang UniversityHo Chi Minh CityVietnam

Healthcare supply chains are under pressure to drive down costs because of digital business,shifting customer needs and new *** waste generated from medical facilities includes medical activities and daily-life activities of patients and their family *** to statistics of the Department of Health EnvironmentalManagement,Vietnam currently has more than 13,500 medical facilities,including hospitals from central to provincial and district levels and private hospitals and medical *** medicine generates about 590 tons of medical waste/day and is estimated to be about 800 tons/*** waste includes ordinary medical waste and hazardous medical waste;in which ordinary medical waste accounts for about 80%–90%,only about 10%–20%is hazardous medical waste including infectious waste and non-infectious hazardous *** is an environmental and occupational health issue that needs attention in developing countries like *** large amounts of medical waste to ensure environmental and personal hygiene,doing so inefficiently creates potential hazards to the environment and increases operating ***,hospitals lack objective criteria and methods to evaluate and select the most optimal infectious medical waste,relying instead on their own subjective assessment and prior ***,the author proposed a fuzzy multicriteria decision making(MCDM)model including Fuzzy Analytic hierarchy process(FAHP)and the Weighted Aggregated Sum-Product Assessment(WASPAS)for infectious medical waste contractors’selection in this *** proposed Fuzzy MCDM method is in-tended to provide a more efficient,accurate method in the selection of infectious medical waste contractors than subjective assessment methods,thus reduce potential risks to *** results of this study can be applied to evaluate and select contractors in other industries.

关键词： MCDM model fuzzy theory fuzzy AHP WASPAS medical waste contractors

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Supplier Selection Fuzzy Model in Supply Chain Management:Vietnamese Cafe Industry Case

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Computers, Materials & Continua 2022年第8期72卷 2291-2304页

作者： Chia-Nan Wang hoang Tuyet Nhi Thai Nguyen van Thanh Department of Industrial Engineering and Management National Kaohsiung University of Science and Technology80778Taiwan Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam

Supplier selection is a vital part of the supply chain and is also a current issue that concerns businesses today as supplier quality directly affects the operations of the *** the right supplier can help businesses increase productivity,competitiveness in the market,and profits without having to lower the quality of the ***,choosing a supplier is not a simple matter,it requires businesses to consider many aspects about their ***,the goal of this study is to propose an integrated model consisting of two models:Fuzzy Analytics Network Process(Fuzzy-ANP)model and Weighted Aggregated Sum Product Assessment(WASPAS)to solve the problem *** Fuzzy-ANP model was developed to evaluate the weightings of the supplier selection criteria,and the WASPAS Model was used to rank the *** example of supplier selection in the coffee industry in Vietnam was studied to validate the model,namely 5 main criteria,with 16 sub-criteria,and 7 *** model test results show that the Fuzzy ANP and WASPAS integration model was *** future,these developing models can apply to other industries or integrate with other models.

关键词： Fuzzy-ANP WASPAS multi-decision caféindustry supplier selection supply chain management

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