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Spectroscospy method for determination of Thorium with Azocalix[4]arene

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Spectroscospy method for determination of Thorium with Azoca...

Depth Based View Synthesis Using Graph Cuts for 3DTV

International Conference on Biology, Environment and Chemistry（ICBEC 2010）

作者： tran Quang Hieu Le Van Tan Nguyen Ngoc tuan Saigon Technology University Ho Chi Minh City University of Industry Dalat nuclear research Institutive

ISBN: (纸本)9789810886424

A research of possible application of azocalixarene for evaluation of thorium content was *** on the complex of Ortho-Ester Tetra-Azophenylcalix[4]arene(TEAC) with Thorium(IV) in acetate buffer solution,the precision,reproducibility and interference of foreign metal ions were *** these results,a new method has been built to determine *** this recommended method could be applied for determination of thorium concentration in some monazite ore with high confident results.

关键词： Azocalixarene,Spectroscopy,Thorium,Complex,Molecular Mechanism,Calculation.

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Journal of Signal and Information Processing 2013年第3期4卷 327-335页

作者： anh Tu tran Koichi Harada Graduate School of Engineering Hiroshima University Higashihiroshima Japan.

In three-dimensional television (3DTV), an interactive free viewpoint selection application has received more attention so far. This paper presents a novel method that synthesizes a free-viewpoint based on multiple textures and depth maps in multi-view camera configuration. This method solves the cracks and holes problem due to sampling rate by performing an inverse warping to retrieve texture images. This step allows a simple and accurate re-sampling of synthetic pixels. To enforce the spatial consistency of color and remove the pixels wrapped incorrectly because of inaccuracy depth maps, we propose some processing steps. The warped depth and warped texture images are used to classify pixels as stable, unstable and disoccluded pixels. The stable pixels are used to create an initial new view by weighted interpolation. To refine the new view, Graph cuts are used to select the best candidates for each unstable pixel. Finally, the remaining disoccluded regions are filled by our inpainting method based on depth information and texture neighboring pixel values. Our experiment on several multi-view data sets is encouraging in both subjective and objective results. Furthermore, our proposal can flexibly use more than two views in multi-view system to create a new view with higher quality.

关键词： View Synthesis Depth Image Based Rendering (DIBR) Free-Viewpoint TV Graph Cuts

Depth-Aided Tracking Multiple Objects under Occlusion

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Journal of Signal and Information Processing 2013年第3期4卷 299-307页

作者： anh Tu tran Koichi Harada Graduate School of Engineering Hiroshima University Higashihiroshima Japan.

In this paper, we have presented a novel tracking method aiming at detecting objects and maintaining their la-bel/identification over the time. The key factors of this method are to use depth information and different strategies to track objects under various occlusion scenarios. The foreground objects are detected and refined by background subtraction and shadow cancellation. The occlusion detection is based on information of foreground blobs in successive frames. The occlusion regions are projected to the projection plane XZ to analysis occlusion situation. According to the occlusion analysis results, different objects’ corresponding strategies are introduced to track objects under various occlusion scenarios including tracking occluded objects in similar depth layer and in different depth layers. The experimental results show that our proposed method can track the moving objects under the most typical and challenging occlusion scenarios.

关键词： Visual Tracking Multiple Object Tracking Stereo Tracking Occlusion Analysis

Gravitationally lensed extended sources: the case of QSO RXJ0911

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Research in Astronomy and Astrophysics 2013年第7期13卷 803-814页

作者： Do Thi Hoai Pham Tuyet Nhung Pham tuan anh Frederic Boone Pierre Darriulat Pham Ngoc Diep Pham Ngoc Dong Nguyen Van Hiep Nguyen Thi Thao VATLY INST179Hoang Quoc VietCau GiayHanoiVietnam IRAP 14avenue Edouard BelinF31400 ToulouseFrance

After a brief reminder of the mechanism of gravitational lensing of ex- tended sources, the particular case of the host galaxy of QSO RXJ0911, a high red-shift （z - 2.8） quadruply imaged quasar, is explored. The non linearity of the problem, together with the proximity of the source to a cusp of the lens inner caustic, has impor-tant consequences on the dependence of the image appearance on the size and shape of the source. Their expected main features and their interpretation in terms of source extension and shape are investigated in a spirit of simplicity and in preparation for the analysis of high sensitivity and spatial resolution images that will soon be within reach with the completion of the Atacama Large Millimeter/submillimeter Array （ALMA）. In particular, the information on source size carded by relative image brightness is dis-cussed. Extension of the results to other types of quadruply imaged quasars is briefly considered.

关键词： gravitational lensing - galaxies: high-redshift

Optimum Determination of Partial transmission Ratios of Mechanical Driven Systems Using a V-belt and a Three-Step Helical Gearbox

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Journal of Environmental Science and Engineering(B) 2017年第6期6卷 328-331页

作者： Dang anh tuan Nguyen Khac tuan Vu Ngoc Pi Mechanical Engineering Faculty Thai Nguyen University of Technology Thai Nguyen 23000 Vietnam Automotive and Power Machinery Faculty Thai Nguyen University of Technology Thai Nguyen 23000 Vietnam

This paper introduces a new study on the optimum calculation of partial transmission ratios of a mechanical drive system using a V-belt and a three-step helical gearbox in order to get the minimum size of the system. The chosen objective function was the cross section dimension of the system. In solving the optimization problem, the design equation for pitting resistance of a gear set was investigated and equations on moment equilibrium condition of a mechanic system including a V-belt and three helical gear units and their regular resistance condition were analysed. From the results of the study, effective formulas for determination of the partial ratios of the V-belt and three-step helical gearboxes were introduced. As using explicit models, the partial ratios can be determined accurately and simply.

关键词： transmission ratio gearbox design optimum design V-belt drive helical gearbox.

Micro-satellite Constellation The Challenges and the Possible Contribution of VNSC

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Journal of Geological Resource and Engineering 2014年第2期2卷 107-110页

作者： Vu Viet Phuong Pham anh tuan Vietnam National Satellite Center Vietnam Academy of Science and Technology Hanoi 10000 Vietnam

In response to the fast evolution of micro-satellite, the ＂AMC （Asian micro-satellite consortium）＂ is established to promote and accelerate the development of micro-satellite and its applications including future projects such as ＂a super constellation＂. Through this paper, we want to share our views on the challenges facing implementation of micro constellation by many institutions with their benefit requirements and also the possible contribution from Vietnam National Satellite Center to this project.

关键词： Micro-satellite constellation continuous observation Asian satellite.

transcriptome and Metabolome Analyses of Sea Cucumbers Apostichopus japonicus in Southern China During the Summer Aestivation Period

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Journal of Ocean University of China 2021年第1期20卷 198-212页

作者： YANG Qiuhua ZHANG Xusheng LU Zhen HUANG Ruifang tran Ngoc tuan WU Jianshao YANG Fuyuan GE Hui ZHONG Chenhui SUN Qian ZHOU Chen LIN Qi Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province Fisheries Research Institute of FujianXiamen 361013China Guangdong Provincial Key Laboratory of Marine Biology Marine Biology InstituteShantou UniversityShantou 515063China

Aestivation is a common strategy of sea cucumbers(Apostichopus japonicus)in response to high-temperature *** studies have individually investigated the immune and physiological alterations at the aestivation ***,these studies have not evaluated the relationship between immunity and *** this study,we explored the transcriptome and metabolome of *** during the aestivation stage to study the *** transcriptome analysis of dormant(aestivation)and revived *** generated 2368 differentially expressed genes,including 927 downregulated genes and 1441 upregulated *** on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses,the downregulated genes in the dormant group were found to be involved in DNA replication,RNA metabolic process,and protein metabolism,which results in the inhibition of motility,skeletal development,neural activity,cell proliferation,and development of *** contrast,the upregulated genes were found to be associated with fatty acid metabolism,carbohydrate hydrolysis,and *** the metabolome analysis,the downregulated metabolites were found to be associated with fatty acid metabolism,starch and sucrose metabolism,and TCA *** indicates that dormant sea cucumbers consume reserved carbohydrates and fatty acids to maintain low levels of energy *** protein-protein interaction network analysis further revealed that carbohydrate hydrolysis promoted phagocytosis activity in the dormant *** study provides new insights into potential molecular mechanisms of sea cucumber survival in high-temperature conditions,which is critical in aquaculture of sea cucumbers.

关键词： aestivation Apostichopus japonicus hypometabolism fatty acid metabolism carbohydrate hydrolysis phagocytosis

Mitochondria-targeting multi-metallic ZnCuO nanoparticles and IR780 for efficient photodynamic and photothermal cancer treatments

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Journal of Materials Science & Technology 2021年第27期86卷 139-150页

作者： Hima Bindu Ruttala Thiruganesh Ramasamy Raghu Ram Teja Ruttala tuan Hiep tran Jee-Heon Jeong Han-Gon Choi Sae Kwang Ku Chul Soon Yong Jong Oh Kim College of Pharmacy Yeungnam University214-1Dae-dongGyeongsan712-749Republic of Korea Magee-Women’s Research Institute University of PittsburghPittsburghPA15213USA Center for Ultrasound Molecular Imaging and Therapeutics University of Pittsburgh Medical Center(UPMC)PittsburghPA15213USA Sri Vasavi Institute of Pharmaceutical Sciences West GodavariAndhra PradeshIndia Faculty of Pharmacy PHENIKAA UniversityYen NghiaHa DongHanoi12116Viet Nam PHENIKAA Research and Technology Institute(PRATI) A&A Green Phoenix Group JSCNo.167 Hoang NganTrung HoaCau GiayHanoi11313Viet Nam College of Pharmacy Hanyang UniversityAnsan426-791Republic of Korea College of Korean Medicine Daegu Haany UniversityGyeongsan712-715Republic of Korea

Chemo-resistance has pushed cancer treatment to the boundary of *** challenge has encouraged scientists to look for nanotechnological *** this study,we have taken this goal one step further without depending on ***,hybrid metal,polymer,and lipid nanoparticles that formed an IR780-a photosensitizer and Zinc copper oxide incorporated nanoparticle(ZCNP)nanoparticles were utilized in a combined photothermal and photodynamic *** the mediation of triphenylphosphonium(TPP)as a mitochondria-targeting moiety,TPP-conjugated polymer-lipid hybrid nanoparticles containing ZCNP/IR-780 significantly enhanced cellular uptake by cancer cells and selectively targeted the mitochondria,which improved the induction of *** tumor-bearing mice,the nanoparticles were detected predominantly in tumors rather than in the other principle organs,which did not show notable signs of *** in vitro and in vivo results demonstrated a great improvement in photothermal and photodynamic efficacy in combination when compared to either one individually,and a significant inhibition of tumor growth was observed with the combined *** summary,this study describes an effective mitochondria-targeting nanocarrier for the treatment of cancer using combined photothermal and photodynamic therapies.

关键词： Zinc-doped copper Nanoparticles Mitochondria Cancer Photothermal Photodynamic

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