A5112418722- Sparse and Compressive Sensing Techniques
- Image and Signal Denoising Methods
- Housing Market and Economics
- Banking stability, regulation, efficiency
- Islamic Finance and Banking Studies
- Radar Systems and Signal Processing
- Blind Source Separation Techniques
- Respiratory viral infections research
- Radioactive element chemistry and processing
- Regional Development and Environment
- Advanced SAR Imaging Techniques
- China's Socioeconomic Reforms and Governance
- Influenza Virus Research Studies
- Lanthanide and Transition Metal Complexes
- Corporate Finance and Governance
- Fullerene Chemistry and Applications
- Animal Disease Management and Epidemiology
- Agricultural Innovations and Practices
- Working Capital and Financial Performance
- Archaeological Research and Protection
- Science Education and Perceptions
- Financial Risk and Volatility Modeling
- Effects and risks of endocrine disrupting chemicals
- Global trade and economics
- Machine Fault Diagnosis Techniques
Hanoi Law University
2021-2024
Vietnam National University, Hanoi
2024
VNU University of Science
2024
Vinh University
2019-2023
Foreign Trade University
2023
Asian Institute of Technology
2023
National Institute Of Hygiene And Epidemiology
2009-2021
Ho Chi Minh University of Banking
2020-2021
Vietnam National University Ho Chi Minh City
2019
University of Da Nang
2018
Marine pollution due to oil spills has been causing extremely serious consequences the natural environment, society and mankind. As a coastal country with coastline of more than 3,260 km, an exclusive economic zone continental shelf one million square kilometer, ocean economy plays very important role in existence, development prosperity Vietnam. A number recent studies have shown that, despite being assessed as rich resources potential for development, Vietnam's seas are facing problems,...
This research identifies factors that explain the liquidity of commercial banks in Vietnam banking system from 2010 to 2015. Using OLS regression method for analysis, it was found that: interbank market helps improve their liquidity; larger loan size, higher risk; good credit risk management has a positive impact on management; and long-term interest rate is negatively related banks. The also makes recommendations policies policy-makers Government State Bank Vietnam.
Purpose This study aims to evaluate the impact of board characteristics on bank performance at commercial in Vietnam. Design/methodology/approach By running pool OLS, fixed-effect and random-effect models with a panel data set 294 observations from 2008 2021, authors have examined determinants performance. Findings The research results show that size, governance efficiency, capital adequacy ratio economic growth positive effect while credit risk has negative relationship bank’s...
This paper considers local sparse reconstruction of time-frequency signatures windowed non-stationary radar returns. These signals can be considered instantaneously narrow-band, thus the behavior recovered accurately with incomplete observations. The typically employed sinusoidal dictionary induces competing requirements on window length. It confronts converse requests number measurements for exact recovery, and sparsity. In this paper, we use chirp each position to determine signal...
The research identifies hypotheses evaluating the impact of board characteristics on risk commercial bank as well examining determinants in Vietnam over a 10-year period, starting from 2008. Also, this research, differences between roles women and men decision-making are tested. Based decision, risks banks may arise. Ordinary least squares(OLS) regression, Random effect method, Fixed method used to estimate factors that have an for dataset all Vietnam. results found equity-to-asset ratio,...
The paper considers sparse reconstruction of Doppler and microDoppler time-frequency (TF) signatures radar returns moving targets from limited or incomplete data. typically employed sinusoidal dictionary, relating the windowed compressed measurements to signal local frequency contents, induces competing requirements on window size. In this paper, we use chirp dictionary for each position relax adverse length-sparsity interlocking. It is shown that using atoms better represents approximate...
This paper describes a novel method to approximate instantaneous frequency of non-stationary signals through an application fractional Fourier transform (FRFT). FRFT enables us build compact and accurate chirp dictionary for each windowed signal, thus the proposed approach offers improved computational efficiency, good performance when compared with atom method.
Climate change is rapidly becoming one of the foremost crises humanity, effects which are particularly observable in developing countries. Economic underdevelopment or weak economies have somewhat limited adaptation to rapid climate these countries, exposing them continuous difficulties different spheres life. Despite accomplishing significant achievements responding and safeguarding human rights, due impacts globalization other domestic problems, Vietnam still faces challenges striving...
Abstract DDT (dichlorodiphenyltrichloroethane) is a commonly used insecticide that recalcitrant and highly stable in the environment. Currently, residue contamination, especially agricultural soil, still concern many countries, threatening human health Among approaches to resolve such an issue, novel biodegradation‐based methods are now preferred physicochemical methods, due sustainability effectiveness of former. In this study, we explored possibility building mixed microbial cultures can...
Housing is one of the basic needs each individual, family and society. This right has also been widely recognized in international human rights instruments at global, regional national levels. The general comments United Nations convention committees point out that to housing not simply have a place reside but refers many different aspects maintaining residence surrounding living conditions. explanations mentioned responsibility countries ensure access for particular groups society consider...
Housing is one of the basic needs each individual, family and society. This right has also been widely recognized in international human rights instruments at global, regional national levels. The general comments United Nations convention committees point out that to housing not simply have a place reside but refers many different aspects maintaining residence surrounding living conditions. explanations mentioned responsibility countries ensure access for particular groups society consider...
Missing samples and randomly sampled non-stationary signals give rise to artifacts that spread over both the time-frequency ambiguity domains. These two domains are related by a two-dimensional Fourier transform. As these resemble noise, traditional reduced interference signal-independent kernels, which belong Cohen's class, cannot mitigate them efficiently. In this paper, novel kernel in domain is proposed. The proposed method based on three important facts. Firstly, any windowed signal can...
In sparse reconstruction of the Doppler frequency, chirp atom approach has been shown to give a better performance than its sinusoidal counterpart. Nevertheless, relatively large dimension and so computational load is much greater compared atom. this paper, we propose simplified dictionary that obtains satisfactory time-frequency signature approximation signals, but with comparable We estimate rate through DTFT bilinear product at certain lag, initial frequency solved in time domain.
Three cardenolides were isolated from the root of Streptocaulon juventas Merr. Their strutures elucidated by their spectral data. A new cardenolide derivative named acovenosigenin 3-O-glucosid metanol extract