A5100729448- Research studies in Vietnam
- Cooperative Communication and Network Coding
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Technologies
- Forest ecology and management
- Natural product bioactivities and synthesis
- Phytochemistry and Biological Activities
- Plant Virus Research Studies
- GABA and Rice Research
- Full-Duplex Wireless Communications
- Rice Cultivation and Yield Improvement
- Plant Stress Responses and Tolerance
- Food Quality and Safety Studies
- Seedling growth and survival studies
- Insect-Plant Interactions and Control
- Photosynthetic Processes and Mechanisms
- Smart Agriculture and AI
- Energy Harvesting in Wireless Networks
- Advanced Thermoelectric Materials and Devices
- Energy Efficient Wireless Sensor Networks
- Video Analysis and Summarization
- 2D Materials and Applications
- Plant Parasitism and Resistance
- Indoor and Outdoor Localization Technologies
- Agroforestry and silvopastoral systems
Posts and Telecommunications Institute of Technology
2024
Hanoi University of Science and Technology
2016-2023
Vietnam Academy of Agricultural Sciences
2021
Vietnam Academy of Science and Technology
2016-2019
University of Economics Ho Chi Minh City
2019
Forest Industry Research Institute
2016-2018
Vietnamese Academy of Forest Sciences
2016-2018
Le Quy Don Technical University
2011-2016
Ho Chi Minh City University of Science
2010-2016
University of Florida
2016
The endangered leafless ghost orchid, Dendrophylax lindenii, one of the most renowned orchids in world, is difficult to grow under artificial conditions. Published information on asymbiotic and symbiotic (co-culture with a mycobiont) seed germination, seedling anatomy developmental morphology this orchid completely lacking. This critical for development efficient procedures production successful reintroduction.Ghost early stages were morphologically anatomically defined compare embryo...
Rice breeding was conducted for a long time during historical times and is an important job in Vietnam because rice the major food domestic consumption export. In this review, we have provided comprehensive insight into importance of promising germplasm resources, achievements, approaches as well discussed challenges perspectives country. With wild relative resources with rich various genetic diversity, their useful genes traits been exploited integrated commercial varieties final outputs...
Background: Young saplings of Hopea odorata, a native dipterocarp in Vietnam, require shading to prevent photoinhibition but they must avoid competition that stagnates their growth.Aims: To develop silvicultural regime by examining how the biomass production H. odorata changes along light gradient gaps within Acacia hybrid plantations.Methods: were planted 22-m-diameter circular 3-year-old plantation and 5-m 7.5-m-wide strip 2.5-year-old plantation.Results: In gap, growth increased nearly...
Abstract From the leaves of Stixis suaveolens (Roxb.), ten compounds were isolated and elucidated chemical structures by using combined methods. Their identified as (±)‐5‐methoxylariciresinol( 1 ), (7 S , 8 R ՛)‐5,5՛‐dimethoxylariciresinol ( 2 (+)‐dehydrodiconiferyl alcohol 3 alcohol‐4‐ O ‐ β‐ D‐glucoside 4 ,8 )‐ threo‐ guaiacylglycerol‐8‐ ‐4՛‐sinapyl ether 7‐ β ‐D‐glucopyranoside 5 3‐hydroxy‐2{4‐[(1 E )‐3‐hydroxyprop‐1‐en‐1‐yl]‐2 methoxyphenoxy}propyl 6 coniferin 7 syringin Z ‐coniferin 9...
Abstract Using various chromatographic methods, primary chemical investigation on Stixis suaveolens (Roxb.) (Capparaceae) resulted in the isolation and elucidation of seven lignan compounds: (+)‐lyoniresinol 3 α ‐ O β ‐D‐glucopyranoside ( 1 ), (‐)‐lyoniresinol 2 (‐)‐4‐epi‐lyoniresinol (‐)‐5'‐methoxyisolariciresinol 4 (+)‐5,5'‐dimethoxy‐9‐ ‐D‐glucopyranosyl secoisolariciresinol 5 sargentodoside D 6 (±) 7 ). This is first report these compounds from .
Virus elimination therapy for roses is very challenging. Foundation Plant Services at the University of California, Davis provides virus-tested rose propagation material to nursery industry in United States. Before 1999, heat treatment potted plants was used eliminate viruses. Success varied and often plant died during or still virus-infected end period. In 2007 we reported on successful Apple mosaic virus (ApMV) Prunus necrotic ringspot (PNRSV) using microshoot tip culture six cultivars....
Barrier coverage is one of the most crucial issues for quality service in wireless sensor networks (WSN) and it has been recently emerged as a premier research topic. The barrier can guarantee intrusion detection when mobile objects are entering into boundary field or penetrate field. There several penetration paths such breach, support, exposure detection. This paper interested maximal breach path, which specific penetrating intruder's safety that corresponds to worst case coverage. Having...
In this study, the first-principle calculations using Density Functional Theory are used to evaluate mechanical, electronic and transport properties of NiS2 monolayer structure. The obtained results show that structure is broken at tensile strain 18% in x direction 14% y direction. ultimate strengths 8.0 N/m 6.45 directions, respectively. At ground state, band gap 0.49 eV with conduction-band minimum (CBM) K’-Γ path valence-band maximum (VBM) Γ point. Under strain, energy changed tends...
This paper describes some fusion techniques for achieving high accuracy species identification from images of different plant organs. Given a series image organs such as branch, entire, flower, or leaf, we firstly extract confidence scores each single organ using deep convolutional neural network. Then, various late approaches including conventional transformation-based (sum rule, max product rule), classification-based approach (support vector machine), and our proposed hybrid model are...
Nghiên cứu mô tả cắt ngang sử dụng bộ câu hỏi điều tra online trên 2157 đối tượng nhằm đánh giá tác động của đại dịch COVID-19 lên công việc và cuộc sống cán y tế tại Hà Nội bằng phương pháp phân tích nhân tố. Kết quả nghiên cho thấy Covid 19 có ảnh hưởng đáng kể tới viên địa bàn Nội. Nhân tuyến huyện/xã nhiều áp lực trong hơn trung ương (Coef: 0,104; 95%CI:0,059;0,148), dưỡng bác sĩ 0,5; 95%CI:0,009-0,095). Người tuổi đời, nghề càng cao thì lớn nhưng lại thái độ làm cực hơn. nơi nguy cơ...
Arbuscular Mycorrhyza Fungi (AMF) is the common type of symbiotic between mycorrhiza fungi and plants. They have an important role for growth plants, especially in bad environmental conditions. In this paper, we reported results isolation identification AMF species soil orange roots sampled Quy Hop, Nghe An province. The showed that there were 16 belonging to six genera namely Acaulospora, Entrophospora, Glomus, Sclerocystis, Glomites Gigaspora collected samples from different horizons (0-20...
In long-haul WDM (wavelength division multiplexing) optical communication systems utilizing the DP-16QAM modulation scheme, traditional methods for removing chaos have exhibited poor performance, resulting in a high bit error rate of 10−2 between original signal and removed signal. To address this issue, we propose DeepChaos+, machine learning-based approach removal transmission systems. Our framework comprises two key points: (1) DeepChaos+ automatically generates dataset that accurately...
For high end-to-end channel capacity, the amplify-and-forward scheme multiple-hop MIMO relays system is considered. The distance between each transceiver and transmit power of relay node are optimized to prevent some from being bottleneck guarantee capacity. By proposing transmission environment coefficient, path loss described in a new way then can be more simply than original one. However, when has no control on Mac layer, performance deteriorated because presenting interference signal....
The Leucine-rich repeat receptor-like kinase (LRR-RLK), that is a consists of leucine rich fragments, plays an important role in the plant growth and development as well enhancing resistance ability against environmental stress factors. LRR-RLR promoter has been studied to increasing gene expression during conditions with salt, paraquat… However, no report on activity LRR-RLK Arsenic (As) stress. Arabidopsis genome sequenced-model widely used studies traits. In this study, was isolated from...
Nghiên cứu mô tả cắt ngang sử dụng bộ câu hỏi phỏng vấn online và thang đo tác động quy sự kiên - IES-R trên 1764 đối tượng là cán y tế thuộc các bệnh viên tuyến Trung ương tham gia chống đại dịch COVID-19 năm 2020. nhằm đánh giá của lên đề sức khỏe tâm thần nhân tế. Kết quả nghiên cho thấy có 9,6% cần quan tâm, 8,8% ảnh hưởng lâu dài trong nhiều 2,8% được chẩn đoán tình trạng căng thẳng. Điểm trung bình “Sự ám ảnh” về COVID 19 cao nhất (7,1 ± 7,3), tiếp theo lảng tránh” (4,8 6,9) “Phản ứng...
In order to increase performance of a system while saving power consumption, multiple hop MIMO relay systems (MHMRSs) have been considered. There are many researches on the physical (PHY) layer, medium access control (MAC) and MAC-PHY cross-layer avoid co-channel interference, such as matched/orthogonal weight algorithm, TDMA-based smart antenna so on. The algorithm is available for bi-directional communications; however, it requests at least three elements every relay. Consequently,...
SSR molecular markers are commonly applicated in breeding, mapping of useful genes, genetic mapping, researching population and linkage genetics. In this study, we analyzed the characteristics size some fragments evaluated genomic diversity 18 tea varieties/clones collected from Tan Cuong commune, Song Cau Company Minh Lap commune (Dong Hy district), Thai Nguyen province. Amplification results with 14 specific primer pairs research samples indicated sequence DNA to be amplified. Using NTSYS...
Brown plant hopper (Nilaparvata lugens Stal.) is the one of dangerous pests for rice that were reported in most growing countries. Twenty seven BPH resistance genes have been detected cultivated and wild rice. However, each gene able to resist with only strain or certain biotype. Besides, many studies indicated toxicity strains tend change loss lines. The breeding varieties biotypes being breeders towards. With helping development molecular markers genetic engineering, are hopping identify...
The research on distributed MIMO relay system has been attracting much attention. By optimizing the position of each relay, channel capacity such is larger than that original system. However, propagation environment between transceiver simplified to be same. In this paper, a decode-and-forward scheme examined. distance optimized in which brought close actuality. For upper bound capacity, number whether total antenna element fixed or not. When assumed infinite, dynamic selection method based...
Declining prices for domestic products and loss of export markets Vietnamese fruit vegetables during 2000-4 highlighted the challenges faced by Vietnam’s horticultural sector. During this time, producers dragon witnessed a decline in as much 60%. While demand was identified higher value Europe North America, regulatory requirements consumer food safety concerns meant that access to these not possible unless growers could adopt internationally recognised quality systems. However...
Tuân thủ quy luật gia trị chỉ la điều kiện cần nhưng chưa đủ va hơn nữa, đo khong phải trach nhiệm tối cao, nền tảng cho cuộc sống của chung ta trong kinh tế thị trường. Trach xa hội cao nhất chinh giữ gin ngưỡng mộ sự sống. nay đa được đề cập nhiều cac di sản tư tưởng triết học phương Đong, Tây, Học thuyết Giao Cong giao cũng như Hồ Chi Minh.