BÁO CÁO KHOA HỌC VỀ NGHIÊN CỨU VÀ GIẢNG DẠY SINH HỌC Ở VIỆT NAM HỘI NGHỊ KHOA HỌC QUỐC GIA LẦN THỨ 5 - PROCEEDING OF THE 5TH NATIONAL SCIENTIFIC CONFERENCE ON BIOLOGICAL RESEARCH AND TEACHING IN VIETNAM
BÁO CÁO KHOA HỌC VỀ NGHIÊN CỨU VÀ GIẢNG DẠY SINH HỌC Ở VIỆT NAM HỘI NGHỊ KHOA HỌC QUỐC GIA LẦN THỨ 5 - PROCEEDING OF THE 5TH NATIONAL SCIENTIFIC CONFERENCE ON BIOLOGICAL RESEARCH AND TEACHING IN VIETNAM
Tidal inlets along the central coast of Vietnam are located in a microtidal, wave-dominated coast... more Tidal inlets along the central coast of Vietnam are located in a microtidal, wave-dominated coastal environment. In addition, the Vietnam coast is highly influenced by the seasonal monsoon regime, which is characterized by large northeast waves from October to March and calm southeast waves from April to September every year. Consequently, the tidal inlet entrance morphologies often suffer from a dynamic seasonal evolution due to distinct differences in the direction of wave-induced longshore sediment transport (LST) between the two monsoon seasons. The migration or closure of tidal inlets causes a lot of problems for socio-economic development in the region since these are the main reasons leading to an increase in the risk of coastal flooding and the obstruction of navigation. This paper presents a comprehensive study of the morphological evolutions of natural tidal inlets on the central coast of Vietnam using long-term remote sensing data sets and by the Delft3D numerical model. ...
The fourth industrial revolution (Industry 4.0) with the breakthrough of internet and artificial ... more The fourth industrial revolution (Industry 4.0) with the breakthrough of internet and artificial intelligence has had a strong impact, changing all aspects of global socio-economic life. Digital transformation in the spread of Industry 4.0 is no longer a choice but has become an inevitable development trend for businesses to truly stand up to the times. Digital transformation is the transformation of business activities, processes, products, and models to fully leverage the opportunities of digital technologies, characterised by development, growth, innovation, and disruption. In particular, "digital disruption" is the situation when new technology competes with the traditional business way that we now often refer to under the concepts of cloud computing, big data, and internet of things (IoT). This competition will help businesses utilise digitised data and processes to create a new model that is more efficient and convenient. Digital technologies in oil and gas companies...
Tạp chí Khoa học Công nghệ Xây dựng (KHCNXD) - ĐHXD, 2019
Sự gia tăng mật độ tại các không gian đô thị mới, thường ở ven đô, được xem là hệ quả và biểu hiệ... more Sự gia tăng mật độ tại các không gian đô thị mới, thường ở ven đô, được xem là hệ quả và biểu hiện của quá trình đô thị hóa. Tìm hiểu các công cụ phát triển không gian tại Hà Nội, trong đó dự án nhà ở như khu đô thị mới (KĐTM), là một cách thức giải mã các vấn đề liên quan đến việc “(tái) kiến tạo đô thị” hiện nay. Bài viết phân tích quá trình gia tăng kép mật độ thông qua sự hiện diện và dẫn hướng của các dự án KĐTM tại khu vực ven đô, biến những vùng đất nông nghiệp thành đất đô thị, biến những nơi thưa thớt dân cư thành các điểm thu hút bằng các phương cách khác nhau, cả chính quy lẫn phi chính quy. Lần thứ nhất của quá trình gia tăng kép mật độ ven đô khi KĐTM là chất tham gia trực tiếp, diễn ra trong lòng các KĐTM. Lần thứ hai của quá trình gia tăng kép mật độ ven đô khi KĐTM là những chất xúc tác tích cực, diễn ra xung quanh các KĐTM tạo ra sự phát triển đa dạng và nhiều biến thể. Từ khóa: Hà Nội; ven đô thị hóa; khu đô thị mới; gia tăng mật độ; không gian ngưỡng.
Well-defined sulfonated aniline oligomer (SAO) microstructures with rod and flake morphologies we... more Well-defined sulfonated aniline oligomer (SAO) microstructures with rod and flake morphologies were successfully synthesized using an aniline and oxidant with a molar ratio of 10:1 in ethanol and acidic conditions (pH 4.8). The synthesized oligomers showed excellent dispersibility and assembled as well-defined structures in contrast to the shapeless aggregated material produced in a water medium. The synergistic effects among the monomer concentration, oxidant concentration, pH, and reaction medium are shown to be controlling parameters to generate SAO microstructures with distinct morphologies, whether micro sheets or micro rods.
To address high fire risks of flamable cellulosic materials, that can trigger easy combustion, fl... more To address high fire risks of flamable cellulosic materials, that can trigger easy combustion, flame propagation, and release of toxic gases, we report a new fire-retardant approach using synergetic actions combining unique properties of reduced graphene oxide (rGO) and hydrated-sodium metaborates (SMB). The single-step treatment of cellulosic materials by a composite suspension of rGO/SMB was developed to create a barrier layer on sawdust surface providing highly effective fire retardant protection with multiple modes of action. These performances are designed considering synergy between properties of hydrated-SMB crystals working as chemical heat-sink to slow down the thermal degradation of the cellulosic particles and gas impermeable rGO layers that prevents access of oxygen and the release of toxic volatiles. The rGO outer layer also creates a thermal and physical barrier by donating carbon between the flame and unburnt wood particles. The fire-retardant performance of developed...
Adhesion behaviour of superhydrophobic (SH) surfaces is an active research field related to vario... more Adhesion behaviour of superhydrophobic (SH) surfaces is an active research field related to various engineering applications in controlled microdroplet transportation, self-cleaning, de-icing, biochemical separation, tissue engineering, and water harvesting. Herein, we report a facile approach to control droplet adhesion, bouncing and rolling on properties of SH surfaces by tuning their air-gap and roughness-height by altering the concentrations of poly-dimethyl-siloxane (PDMS). The optimal use of PDMS (4 wt% to 16 wt%) in a dual-scale (nano and micro-particles) composite enables to control specific surface area (SSA), pore-volume, and roughness of matrices that results in a well-controlled adhesion between water droplets and SH surfaces. The sliding angles of these surfaces were tuned to be varied between 2 ± 1° to 87 ± 2°, which are attributed to the transformation of the contact type between droplet and surface from "point contact" to "area contact". We furthe...
Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications and Algorithms
In the paper, some results on equi, uniform and L^p stability for the solutions of set differenti... more In the paper, some results on equi, uniform and L^p stability for the solutions of set differential equations, using Lyapunov-like functions are studied.
Proceedings of 7th International Workshop on Enterprise networking and Computing in Healthcare Industry, 2005. HEALTHCOM 2005.
We present customized ontology-based intelligent medical terminology tool. Growth of ontological ... more We present customized ontology-based intelligent medical terminology tool. Growth of ontological based medical information tools in IT technology obviously is going to effect the future of medical information systems. In this concern many groups and organizations have processed ontological based tools for healthcare information system however necessitate of providing more specific information in medical area is a requirement that have
Direct epitaxial growth of high-quality 100lCdZnTe on 3 inch diameter vicinal {100}Si substrates ... more Direct epitaxial growth of high-quality 100lCdZnTe on 3 inch diameter vicinal {100}Si substrates has been achieved using molecular beam epitaxy (MBE); a ZnTe initial layer was used to maintain the {100} Si substrate orientation. The properties of these substrates and associated HgCdTe layers grown by liquid phase epitaxy (LPE) and subsequently processed long wavelength infrared (LWIR) detectors were compared directly
Large-area HgCdTe 480×640 thermal-expansion-matched hybrid focal plane arrays were achieved by su... more Large-area HgCdTe 480×640 thermal-expansion-matched hybrid focal plane arrays were achieved by substituting metalorganic chemical vapor deposition (MOCVD)-grown CdZnTe/GaAs/Si alternative substrate in place of bulk CdZnTe substrates for the growth of HgCdTe p-on-n double-layer heterojunctions by controllably-doped mercury-melt liquid phase epitaxy (LPE). (100) CdZnTe was grown by MOCVD on GaAs/Si using a vertical-flow high-speed rotating disk reactor which incorporates up to
BÁO CÁO KHOA HỌC VỀ NGHIÊN CỨU VÀ GIẢNG DẠY SINH HỌC Ở VIỆT NAM HỘI NGHỊ KHOA HỌC QUỐC GIA LẦN THỨ 5 - PROCEEDING OF THE 5TH NATIONAL SCIENTIFIC CONFERENCE ON BIOLOGICAL RESEARCH AND TEACHING IN VIETNAM
BÁO CÁO KHOA HỌC VỀ NGHIÊN CỨU VÀ GIẢNG DẠY SINH HỌC Ở VIỆT NAM HỘI NGHỊ KHOA HỌC QUỐC GIA LẦN THỨ 5 - PROCEEDING OF THE 5TH NATIONAL SCIENTIFIC CONFERENCE ON BIOLOGICAL RESEARCH AND TEACHING IN VIETNAM
Tidal inlets along the central coast of Vietnam are located in a microtidal, wave-dominated coast... more Tidal inlets along the central coast of Vietnam are located in a microtidal, wave-dominated coastal environment. In addition, the Vietnam coast is highly influenced by the seasonal monsoon regime, which is characterized by large northeast waves from October to March and calm southeast waves from April to September every year. Consequently, the tidal inlet entrance morphologies often suffer from a dynamic seasonal evolution due to distinct differences in the direction of wave-induced longshore sediment transport (LST) between the two monsoon seasons. The migration or closure of tidal inlets causes a lot of problems for socio-economic development in the region since these are the main reasons leading to an increase in the risk of coastal flooding and the obstruction of navigation. This paper presents a comprehensive study of the morphological evolutions of natural tidal inlets on the central coast of Vietnam using long-term remote sensing data sets and by the Delft3D numerical model. ...
The fourth industrial revolution (Industry 4.0) with the breakthrough of internet and artificial ... more The fourth industrial revolution (Industry 4.0) with the breakthrough of internet and artificial intelligence has had a strong impact, changing all aspects of global socio-economic life. Digital transformation in the spread of Industry 4.0 is no longer a choice but has become an inevitable development trend for businesses to truly stand up to the times. Digital transformation is the transformation of business activities, processes, products, and models to fully leverage the opportunities of digital technologies, characterised by development, growth, innovation, and disruption. In particular, "digital disruption" is the situation when new technology competes with the traditional business way that we now often refer to under the concepts of cloud computing, big data, and internet of things (IoT). This competition will help businesses utilise digitised data and processes to create a new model that is more efficient and convenient. Digital technologies in oil and gas companies...
Tạp chí Khoa học Công nghệ Xây dựng (KHCNXD) - ĐHXD, 2019
Sự gia tăng mật độ tại các không gian đô thị mới, thường ở ven đô, được xem là hệ quả và biểu hiệ... more Sự gia tăng mật độ tại các không gian đô thị mới, thường ở ven đô, được xem là hệ quả và biểu hiện của quá trình đô thị hóa. Tìm hiểu các công cụ phát triển không gian tại Hà Nội, trong đó dự án nhà ở như khu đô thị mới (KĐTM), là một cách thức giải mã các vấn đề liên quan đến việc “(tái) kiến tạo đô thị” hiện nay. Bài viết phân tích quá trình gia tăng kép mật độ thông qua sự hiện diện và dẫn hướng của các dự án KĐTM tại khu vực ven đô, biến những vùng đất nông nghiệp thành đất đô thị, biến những nơi thưa thớt dân cư thành các điểm thu hút bằng các phương cách khác nhau, cả chính quy lẫn phi chính quy. Lần thứ nhất của quá trình gia tăng kép mật độ ven đô khi KĐTM là chất tham gia trực tiếp, diễn ra trong lòng các KĐTM. Lần thứ hai của quá trình gia tăng kép mật độ ven đô khi KĐTM là những chất xúc tác tích cực, diễn ra xung quanh các KĐTM tạo ra sự phát triển đa dạng và nhiều biến thể. Từ khóa: Hà Nội; ven đô thị hóa; khu đô thị mới; gia tăng mật độ; không gian ngưỡng.
Well-defined sulfonated aniline oligomer (SAO) microstructures with rod and flake morphologies we... more Well-defined sulfonated aniline oligomer (SAO) microstructures with rod and flake morphologies were successfully synthesized using an aniline and oxidant with a molar ratio of 10:1 in ethanol and acidic conditions (pH 4.8). The synthesized oligomers showed excellent dispersibility and assembled as well-defined structures in contrast to the shapeless aggregated material produced in a water medium. The synergistic effects among the monomer concentration, oxidant concentration, pH, and reaction medium are shown to be controlling parameters to generate SAO microstructures with distinct morphologies, whether micro sheets or micro rods.
To address high fire risks of flamable cellulosic materials, that can trigger easy combustion, fl... more To address high fire risks of flamable cellulosic materials, that can trigger easy combustion, flame propagation, and release of toxic gases, we report a new fire-retardant approach using synergetic actions combining unique properties of reduced graphene oxide (rGO) and hydrated-sodium metaborates (SMB). The single-step treatment of cellulosic materials by a composite suspension of rGO/SMB was developed to create a barrier layer on sawdust surface providing highly effective fire retardant protection with multiple modes of action. These performances are designed considering synergy between properties of hydrated-SMB crystals working as chemical heat-sink to slow down the thermal degradation of the cellulosic particles and gas impermeable rGO layers that prevents access of oxygen and the release of toxic volatiles. The rGO outer layer also creates a thermal and physical barrier by donating carbon between the flame and unburnt wood particles. The fire-retardant performance of developed...
Adhesion behaviour of superhydrophobic (SH) surfaces is an active research field related to vario... more Adhesion behaviour of superhydrophobic (SH) surfaces is an active research field related to various engineering applications in controlled microdroplet transportation, self-cleaning, de-icing, biochemical separation, tissue engineering, and water harvesting. Herein, we report a facile approach to control droplet adhesion, bouncing and rolling on properties of SH surfaces by tuning their air-gap and roughness-height by altering the concentrations of poly-dimethyl-siloxane (PDMS). The optimal use of PDMS (4 wt% to 16 wt%) in a dual-scale (nano and micro-particles) composite enables to control specific surface area (SSA), pore-volume, and roughness of matrices that results in a well-controlled adhesion between water droplets and SH surfaces. The sliding angles of these surfaces were tuned to be varied between 2 ± 1° to 87 ± 2°, which are attributed to the transformation of the contact type between droplet and surface from "point contact" to "area contact". We furthe...
Dynamics of Continuous, Discrete and Impulsive Systems Series B: Applications and Algorithms
In the paper, some results on equi, uniform and L^p stability for the solutions of set differenti... more In the paper, some results on equi, uniform and L^p stability for the solutions of set differential equations, using Lyapunov-like functions are studied.
Proceedings of 7th International Workshop on Enterprise networking and Computing in Healthcare Industry, 2005. HEALTHCOM 2005.
We present customized ontology-based intelligent medical terminology tool. Growth of ontological ... more We present customized ontology-based intelligent medical terminology tool. Growth of ontological based medical information tools in IT technology obviously is going to effect the future of medical information systems. In this concern many groups and organizations have processed ontological based tools for healthcare information system however necessitate of providing more specific information in medical area is a requirement that have
Direct epitaxial growth of high-quality 100lCdZnTe on 3 inch diameter vicinal {100}Si substrates ... more Direct epitaxial growth of high-quality 100lCdZnTe on 3 inch diameter vicinal {100}Si substrates has been achieved using molecular beam epitaxy (MBE); a ZnTe initial layer was used to maintain the {100} Si substrate orientation. The properties of these substrates and associated HgCdTe layers grown by liquid phase epitaxy (LPE) and subsequently processed long wavelength infrared (LWIR) detectors were compared directly
Large-area HgCdTe 480×640 thermal-expansion-matched hybrid focal plane arrays were achieved by su... more Large-area HgCdTe 480×640 thermal-expansion-matched hybrid focal plane arrays were achieved by substituting metalorganic chemical vapor deposition (MOCVD)-grown CdZnTe/GaAs/Si alternative substrate in place of bulk CdZnTe substrates for the growth of HgCdTe p-on-n double-layer heterojunctions by controllably-doped mercury-melt liquid phase epitaxy (LPE). (100) CdZnTe was grown by MOCVD on GaAs/Si using a vertical-flow high-speed rotating disk reactor which incorporates up to
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