A5010053913- Advanced Surface Polishing Techniques
- Advanced Photocatalysis Techniques
- Advanced machining processes and optimization
- TiO2 Photocatalysis and Solar Cells
- Advanced Machining and Optimization Techniques
- Advanced materials and composites
- Organometallic Complex Synthesis and Catalysis
- Catalytic Processes in Materials Science
- Aluminum Alloys Composites Properties
- Transportation Planning and Optimization
- Rheology and Fluid Dynamics Studies
- Electrohydrodynamics and Fluid Dynamics
- Advanced Research in Systems and Signal Processing
- Neonatal and fetal brain pathology
- Nanomaterials for catalytic reactions
- Cervical Cancer and HPV Research
- Polymer Foaming and Composites
- Global Maternal and Child Health
- Radical Photochemical Reactions
- Radiation Effects and Dosimetry
- Energetic Materials and Combustion
- Aluminum Alloy Microstructure Properties
- Metal-Catalyzed Oxygenation Mechanisms
- Synthetic Organic Chemistry Methods
- Polymer crystallization and properties
Can Tho University
2023
Hue University
2023
Hanoi University of Science and Technology
2020-2022
Thai Nguyen University
2020
Hanoi University of Industry
2017-2020
Dalat University
2010-2018
Laboratoire Informatique, Image et Interaction (L3i)
2015
La Rochelle Université
2012
École Polytechnique Fédérale de Lausanne
2001-2006
Abstract Thin layers of pure TiO 2 and doped by different amounts Fe O 3 have been prepared the sol–gel method with tetraisopropyl orthotitanate ( NO ) . Physico-chemical properties catalysts were characterized BET Adsorption, x-ray Diffraction (XRD), FE-SEM, as well Raman UV-Vis spectroscopy. The photocatalytic activity obtained materials was investigated in reaction complete oxidation p-xylene gas phase under radiation UV (λ=365 nm LED (λ=470 lamps. It has found that particle size all...
Simply mixing the complex [{RuCl2(1,3,5-C6H3iPr3)}2] (1) with PCy3 is sufficient to generate a catalyst suitable for highly efficient atom-transfer radical addition and polymerization reactions at exceptionally low temperatures (see scheme). The steric congestion metal caused by bulky ligands thought be essential reactivity of catalyst. Supporting information this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z462037_s.pdf or from author. Please note: publisher...
Abstract The use of a tetrafunctional epoxy‐based additive to modify the molecular structure poly(ethylene terephthalate) (PET) was investigated with aim producing PET foams by an extrusion process. analysis and shear elongation rheological characterization showed that branched is obtained for 0.2, 0.3 0.4 wt% epoxy additive. Gel permeation chromatography (GPC) led conclusion randomly obtained, being independent modifier concentration. evolution extensional behavior as function weight ( M w...
Abstract Nano TiO 2 was synthesized by the hydrothermal method. The sample doped with transition metal ions (V, Cr and Fe) non-metal (N). Doped samples were characterized x-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) UV-Vis diffuse reflectance spectroscopy (UV-Vis). Photocatalytic activity in mineralization of xylene (vapor phase), methylene blue active dyer PR (liquid phase) tested. In comparison non-doped , V-, Cr-, Fe-doped N-doped exhibited much higher...
This paper introduces a study on multi-criteria optimization of the dressing parameters in surface grinding for 90CrSi tool steel. The aim is to minimize roughness, normal shear force and maximize wheel life by using Taguchi method Grey Relational Analysis (GRA). multi-objective obtained optimizing four four-level two two-level sixteen experiments based an orthogonal array L 1 6 (4 4 ×2 2 ). From results study, optimum were proposed. Also, evaluate model, experiment was performed. comparison...
Abstract The bimetallic ruthenium complex [(1,3,5‐ i ‐Pr 3 C 6 H )Ru(μ‐Cl) RuCl(C 2 4 )(PCy )] has been synthesized by reaction of )RuCl with one equivalent PCy in the presence ethylene. It can be used as a catalyst precursor for controlled atom transfer radical polymerization methacrylates at 35 °C. resulting polymers show low polydispersities.
Transportation systems are increasingly complex and must evolve to incorporate components of sustainable development. It has become appropriate develop high-level simulation tools for policy makers so that they can analyze the potential consequences their choices. In this paper, we propose a decision-maker simulator intended define tune urban transportation (travel, parking strategies). terms system architecture, adopted "system systems" approach, mainly structured in layers, order model...
Grinding cost is an essential factor in a grinding process. In external cylindrical grinding, there has been absence of various input process parameters which have significant effects on the cost. This paper presents optimization to determine optimum exchanged wheel diameter based seven consisting initial diameter, width, life, radial wear per dress, total depth dressing cut, machine tool hourly rate, and Combined with screening experiments, influence for was examined. addition, effect...
The catalysts TiO2 and doped with Fe V were prepared using the sol–gel method. TiO2-modified samples obtained in form of a thick film on pyrex glass sticks tubes used as gas phase photo-oxidation p-xylene. physico-chemical characteristics determined methods Brunauer–Emmett–Teller adsorption, x-ray diffraction, infrared, ultraviolet visible Raman spectroscopies. experimental results show that introduction did not expand region light absorption, but slightly reduced size particles, number...
This study aims to propose a method calculate optimum exchanged grinding wheel diameter minimize cost in surface process for stainless steel. The interactions of the and have been analyzed presented mathematical formulae. To obtain minimal cost, optimal has determined by investigating six two-level parameters including initial diameter, total dressing depth, radial wear per dress, life, machine tool hour cost. Based on 2 6 experiments conducted computational program, is as function these...
In this investigation, the thin film of degussa P25 was obtained by dip coating method and calcined at 450 °C for 2 h (P25-450-2) used as photocatalyst gas-phase photooxidation xylene. The physico-chemical properties P25-450-2 powder studied methods BET adsorption, XRD, FTIR, UV–vis, Raman spectroscopies, SEM, TEM, carbon dioxide temperature-programmed desorption . thickness determined on Alpha Step IQ KLA—Ctencor equipment point zero charge (PZC) sample salt addition method. P25-450-2,...
Background: Cervical cancer is the second most common cause of cancer-related death among women worldwide, with over 500,000 new cases diagnosed annually and 50% mortality rate in Asia. All are at risk for cervical cancer, often from 42 to 58 years old. However, we can prevent it by screening tests HPV vaccines (HPV main cancer). When found early, highly treatable (about 90-100%). As one directly involved people prevention treatment this disease future, a medical student needs grasp basic...
Zelluläre Dysfunktionen werden mit steigendem Alter häufiger. ist der Hauptrisikofaktor für viele Pathologien, darunter Krebs, Schlaganfälle, neurodegenerative Erkrankungen, Herzerkrankungen und Diabetes. Eine therapeutische Verzögerung des Alterungsprozesses könnte immense Effekte auf die menschliche Gesundheit haben.
Background: Viet Nam was one of the countries with highest abortion rate in world, which about 70% were adolescents. Nowadays, students at Can Tho University Medicine and Pharmacy are facing many problems related to reproductive health such as unwanted pregnancy, abortion, sexually transmitted diseases, homosexuality... Objectives: To determine proportion medical have correct knowledge contraceptive methods safe sex its factors. Materials methods: A cross-sectional descriptive study analysis...
AlN particles can be synthesized by blowing Nitrogen gas into liquid metal. At high temperature molecules decompose to atoms and react with Al create AlN. EDX diffraction shows that weight ratio of the fully coincides standard atomic mass between N (about 2), confirming are The SEM images show size varies from several hundred nanometers some micrometers, depending on contact time bubbles A simple model growth rate (0.148 nm/s) at early stage is only a half finishing (0.305 nm/s), this may...
Đặt vấn đề: Truyền ối điều trị các trường hợp thai thiểu là một kỹ thuật mới áp dụng tại Việt Nam. Bệnh viện Vinmec triển khai này từ năm 2016 và bước đầu ghi nhận kết quả khả quan, nghiên cứu được tiến hành nhằm
 Mục tiêu: đánh giá số kiện tiêu chí của truyền xét đa khoa quốctế Vinmec.
 Đối tượng cứu: 8 phụ có đầy đủ chỉ lựa chọn để với cơ bản dưới 50mm. Phương pháp theo dõi dọc đến khi ra ngoài tử cung.
 Kết quả: Tuổi trung bình 27,0±5,3 tuần, lượng 325 ± 84 ml, thời gian...
Ung thư cổ tử cung biểu mô thần kinh nội tiết rất hiếm gặp. Đây là bệnh phối hợp giữa hệ và các tuyến tiết. Các triệu chứng lâm sàng cũng gần giống với ung do nhiễm HPV, nhưng tiến triển nhanh không có giai đoạn tiền kéo dài. Chẩn đoán bằng sinh thiết tổn thương làm giải phẫu bệnh. Thai phụ 29 tuổi, đã 2 con, lần này thai 20 tuần vào viện chẩn doạ sẩy vì ra máu âm đạo, được phát hiện sần sùi từng khối, polyp ở , kết quả Được chỉ định mổ Wertheim điều trị bổ xung tia xạ hoá chất sau đó.