Search results for: Dat Nguyen

Items from 1 to 20 out of 131 results

article

Geological and Geochemical Characteristics of the Pac Lang Gold Deposits, Northeastern Vietnam and Their Potential Prospects

The Hung Khuong, Van Dat Nguyen, Thi Cuc Nguyen, Nhu Sang Pham

Inżynieria Mineralna > 2023 > no. 2, vol. 1 > 311--318

The Song Hien Rift basin, located in northeast Vietnam, has been identified as an important region for gold deposits, including the Pac Lang deposit. Several methods like petrographic observations, elemental analyses, and geochemical elements and vertical zoning models of primary halo have been used to describe geological characteristic of this deposit. The investigation focused on examining the geological...

article

Variations in Intracellular Organometallic Reaction Frequency Captured by Single‐Molecule Fluorescence Microscopy

Dat Nguyen, Guangjie Yan, Tai‐Yen Chen, Loi H. Do

Angewandte Chemie > 135 > 31 > n/a - n/a

Studies of organometallic reactions in living cells commonly rely on ensemble‐averaged measurements, which can obscure the detection of reaction dynamics or location‐specific behavior. This information is necessary to guide the design of bioorthogonal catalysts with improved biocompatibility, activity, and selectivity. By leveraging the high spatial and temporal resolution of single‐molecule fluorescence...

article

Variations in Intracellular Organometallic Reaction Frequency Captured by Single‐Molecule Fluorescence Microscopy

Dat Nguyen, Guangjie Yan, Tai‐Yen Chen, Loi H. Do

Angewandte Chemie International Edition > 62 > 31 > n/a - n/a

article

Moisturizing effectiveness of immediate compared with delayed moisturization

Kim Han Nguyen, Le Duy Pham, Thi Thu Thao Nguyen, Hien Chu, more

Journal of Cosmetic Dermatology > 21 > 10 > 5134 - 5140

Introduction Moisturizers play an essential role in maintaining the integrity of the skin barrier by increasing stratum corneum hydration (SCH) and reducing transepidermal water loss (TEWL). According to dermatology and allergy guidelines, moisturizers should be applied on the skin within 3 min after bathing or showering. However, there is very little evidence supporting this recommendation. This...

article

How well do species distribution models predict occurrences in exotic ranges?

Dat Nguyen, Brian Leung, Franziska Schrodt

Global Ecology and Biogeography > 31 > 6 > 1051 - 1065

Aim Species distribution models (SDMs) are widely used predictive tools to forecast potential biological invasions. However, the reliability of SDMs extrapolated to exotic ranges remains understudied, with most analyses restricted to few species and equivocal results. We examine the spatial transferability of SDMs for 647 non‐indigenous species extrapolated across 1,867 invaded ranges, and identify...

article

Lithium Phosphonate Functionalized Polymer Coating for High‐Energy Li[Ni_0.8Co_0.1Mn_0.1]O₂ with Superior Performance at Ambient and Elevated Temperatures

Zhen Chen, Huu‐Dat Nguyen, Maider Zarrabeitia, Hai‐Peng Liang, more

Advanced Functional Materials > 31 > 41 > n/a - n/a

High‐energy Ni‐rich lithium transition metal oxides such as Li[Ni_0.8Co_0.1Mn_0.1]O₂ (NCM₈₁₁) are appealing positive electrode materials for next‐generation lithium batteries. However, the high sensitivity toward moist air during storage and the high reactivity with common organic electrolytes, especially at elevated temperatures, are hindering their commercial use. Herein, an effective strategy is reported...

article

Comparison of multivariate linear regression and a machine learning algorithm developed for prediction of precision warfarin dosing in a Korean population

Van Lam Nguyen, Hoang Dat Nguyen, Yong‐Soon Cho, Ho‐Sook Kim, more

Journal of Thrombosis and Haemostasis > 19 > 7 > 1676 - 1686

Background Personalized warfarin dosing is influenced by various factors including genetic and non‐genetic factors. Multiple linear regression (LR) is known as a conventional method to develop predictive models. Recently, machine learning approaches have been extensively implemented for warfarin dosing due to the hypothesis of non‐linear association between covariates and stable warfarin dose. ...

article

Time Series Forecasting with Data Transform and Its Application in Sport

Hao Do, Duc Chau, Thuc Cai, Han Lam, more

Annals of Computer Science and Information Systems > 2021 > Vol. 27 > 29--32

Forecasting time series data is an exciting challenge. Although being complex, this is a high potential for industrial use. One of the most significant gaps in the forecasting process is the quality of data representation, especially with the time-series data. This paper proposes an effective method using an integral transform that can show hidden information of the time series data. The integral...

article

36‐1: Invited Paper: High‐Resolution Induced‐Electrohydrodynamic (iEHD) Jet Printing for Display

Doyoung Byun, Giho Kang, Zhang Bin, Yonghee Jang, more

SID Symposium Digest of Technical Papers > 51 > 1 > 505 - 507

This talk includes an overview of high‐resolution electrohydrodynamic(EHD) jet printing method for display. With the EHD jet printing method, ones could overcome some limitations of conventional inkjet printing such as ink viscosity and pattern resolution. On the other hand, to eject drops by the EHD method, an electrode should supply charge to the ink so that there is possibility of electro‐chemical...

article

Successful management of severe diabetic ketoacidosis in a patient with type 2 diabetes with insulin allergy: a case report

Anh Dat Nguyen, Chinh Quoc Luong, Hieu Chi Chu, Van Khoa Dieu Nguyen, more

BMC Endocrine Disorders > 2019 > 19 > 1 > 1-6

Background Diabetic ketoacidosis (DKA) is an acute, major, life-threatening complication of diabetes that requires immediate treatment. Allergic reaction to insulin is rare, especially when using recombinant human insulin. The clinical presentation of insulin allergy can range from minor local symptoms to a severe generalized allergic reaction such as anaphylaxis. A limited number of cases have been...

article

Identification, sexual dimorphism and aspects of the natural history of Sapria himalayana (Rafflesiaceae) on Vietnam’s Lang Biang Plateau

Hữu Đăng Trần, Hồng Trường Lưu, Quốc Đạt Nguyễn, Hiếu Cường Nguyễn, more

Botanical Studies > 2018 > 59 > 1 > 1-10

Background Sapria is a distinctive and narrowly host-specific holoparasitic genus belonging to the Rafflesiaceae. Sapria himalayana, rare throughout its range from NE India, SW China, Thailand to Vietnam, is a little-understood species first recorded for Vietnam in 1959, and only recollected there over half a century later in February 2017. This has facilitated an assessment of its taxonomic identity...

article

Pediatric Localized Intracranial Ependymomas: A Multicenter Analysis of the Société Française de lutte contre les Cancers de l'Enfant (SFCE) from 2000 to 2013

Anne Ducassou, Laetitia Padovani, Leonor Chaltiel, Stéphanie Bolle, more

International Journal of Radiation Oncology*Biology*Physics > 2018 > 102 > 1 > 166-173

The objective of this study was to analyze survival and prognostic factors for children, adolescents, and young adults treated with postoperative radiation therapy (RT) for intracranial ependymoma.Between 2000 and 2013, 202 patients aged ≤25 years were treated in the 13 main French pediatric RT reference centers. Their medical records were reviewed for information, treatments received, and survival...

article

Finite prism method based topology optimization of beam cross section for buckling load maximization

Huu-Dat Nguyen, Gang-Won Jang, Do-Min Kim, Yoon Young Kim

Structural and Multidisciplinary Optimization > 2018 > 57 > 1 > 55-70

The use of the finite element method (FEM) for buckling topology optimization of a beam cross section requires large numerical cost due to the discretization in the length direction of the beam. This investigation employs the finite prism method (FPM) as a tool for linear buckling analysis, reducing degrees of freedom of three-dimensional nodes of FEM to those of two-dimensional nodes with the help...

article

Multiple-degrees-of-freedom dielectric elastomer actuators for soft printable hexapod robot

Canh Toan Nguyen, Hoa Phung, Tien Dat Nguyen, Hosang Jung, more

Sensors and Actuators A: Physical > 2017 > 267 > C > 505-516

In this paper, we present the development of a printable hexapod walking robot driven by the multiple-degrees-of-freedom (multi-DOF) soft actuators based on dielectric elastomer. The multi-DOF soft actuators are employed to provide versatile movements including two translations and single rotation within a simple structure based on the antagonistic configuration of two elastomer membranes. The soft...

article

Highly sensitive flexible proximity tactile array sensor by using carbon micro coils

Tien Dat Nguyen, Hyo Seung Han, Hyeon-Yeong Shin, Canh Toan Nguyen, more

Sensors and Actuators A: Physical > 2017 > 266 > C > 166-177

Recently, the new generation of robotics, called soft robotics, are exploited by soft materials as the revolutionary tools which innovate the current challenges. In this paper, we propose a novel dual mode array sensor based on the carbon microcoils (CMC) in soft dielectric elastomer substrate material. It can detect the distance to the object as well as the pressure when it has contact. In the first,...

article

Effects of Ketoconazole on the Pharmacokinetics of Mifepristone, a Competitive Glucocorticoid Receptor Antagonist, in Healthy Men

Dat Nguyen, Sarah Mizne

Advances in Therapy > 2017 > 34 > 10 > 2371-2385

Introduction Mifepristone, a competitive glucocorticoid receptor antagonist approved for Cushing syndrome, and ketoconazole, an antifungal and steroidogenesis inhibitor, are both inhibitors of and substrates for cytochrome P450 (CYP3A4). This study evaluated the pharmacokinetic effects of concomitant ketoconazole, a strong CYP3A4 inhibitor, on mifepristone. Methods In an open-label, two-period,...

chapter

Interactive haptic display based on soft actuator and soft sensor

Hoa Phung, Phi Tien Hoang, Canh Toan Nguyen, Tien Dat Nguyen, more

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) > 886 - 891

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

This paper demonstrates a new haptic display based on soft actuator and soft sensor. The device consists of an array rigid coupling actuator and an array tactile sensor which configured sensor located on the top of actuator. The actuator includes a frame with rigid coupling made by silicone and a dielectric elastomer actuator(DEA). The movement of the DEA is transferred to touch pad via rigid coupling...

chapter

A novel bioinspired hexapod robot developed by soft dielectric elastomer actuators

Canh Toan Nguyen, Hoa Phung, Phi Tien Hoang, Tien Dat Nguyen, more

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) > 6233 - 6238

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

This paper presents a hexapod crawling robot which has bioinspired design and locomotion posture from the insects. The robot, called S-Hex II, is an upgraded version of the different printable monolithic hexapod robot which is named as S-Hex I. The S-Hex II is studied for the project of developing mesoscale walking robots actuated by the soft dielectric elastomer actuators. In comparison with the...

chapter

A new overlap circle technique for Reducing Data Aggregation Time in Wireless Sensor Networks

Yao-Yu Jhuang, Tong Lin, Tan Dat Nguyen, Shao-I Chu, more

2017 International Conference on System Science and Engineering (ICSSE) > 546 - 549

2017 International Conference on System Science and Engineering (ICSSE)

Nowadays, the problem of using minimum number of time slots for data aggregation such that sensors can work without data collision for data transmissions has received a great deal of attention in Wireless Sensor Network (WRSN). It is worth mentioning that there exists many approaches that are tried to reduce the number of time slots for data aggregation in WSNs. However, most of previous works are...

chapter

GMS: Grid-Based Motion Statistics for Fast, Ultra-Robust Feature Correspondence

Jiawang Bian, Wen-Yan Lin, Yasuyuki Matsushita, Sai-Kit Yeung, more

2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) > 2828 - 2837

2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

Incorporating smoothness constraints into feature matching is known to enable ultra-robust matching. However, such formulations are both complex and slow, making them unsuitable for video applications. This paper proposes GMS (Grid-based Motion Statistics), a simple means of encapsulating motion smoothness as the statistical likelihood of a certain number of matches in a region. GMS enables translation...

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INFONA - science communication portal

Search results for: Dat Nguyen

Geological and Geochemical Characteristics of the Pac Lang Gold Deposits, Northeastern Vietnam and Their Potential Prospects

Variations in Intracellular Organometallic Reaction Frequency Captured by Single‐Molecule Fluorescence Microscopy

Variations in Intracellular Organometallic Reaction Frequency Captured by Single‐Molecule Fluorescence Microscopy

Moisturizing effectiveness of immediate compared with delayed moisturization

How well do species distribution models predict occurrences in exotic ranges?

Lithium Phosphonate Functionalized Polymer Coating for High‐Energy Li[Ni_0.8Co_0.1Mn_0.1]O₂ with Superior Performance at Ambient and Elevated Temperatures

Comparison of multivariate linear regression and a machine learning algorithm developed for prediction of precision warfarin dosing in a Korean population

Time Series Forecasting with Data Transform and Its Application in Sport

36‐1: Invited Paper: High‐Resolution Induced‐Electrohydrodynamic (iEHD) Jet Printing for Display

Successful management of severe diabetic ketoacidosis in a patient with type 2 diabetes with insulin allergy: a case report

Identification, sexual dimorphism and aspects of the natural history of Sapria himalayana (Rafflesiaceae) on Vietnam’s Lang Biang Plateau

Pediatric Localized Intracranial Ependymomas: A Multicenter Analysis of the Société Française de lutte contre les Cancers de l'Enfant (SFCE) from 2000 to 2013

Finite prism method based topology optimization of beam cross section for buckling load maximization

Multiple-degrees-of-freedom dielectric elastomer actuators for soft printable hexapod robot

Highly sensitive flexible proximity tactile array sensor by using carbon micro coils

Effects of Ketoconazole on the Pharmacokinetics of Mifepristone, a Competitive Glucocorticoid Receptor Antagonist, in Healthy Men

Interactive haptic display based on soft actuator and soft sensor

A novel bioinspired hexapod robot developed by soft dielectric elastomer actuators

A new overlap circle technique for Reducing Data Aggregation Time in Wireless Sensor Networks

GMS: Grid-Based Motion Statistics for Fast, Ultra-Robust Feature Correspondence

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