Using Image processing to control traffic flow based on Robot

Nguyen Truong-Thinh,Nguyen Ngoc-Phuong,Tuong Phuoc-Tho 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10

The traffic conditions in Viet Nam are very complex, there is an increasing demand for autonomous system can control the drivers on street obeying the traffic regulations. From this idea, a human-like robot intending for controlling and monitoring the traffic system was designed and developed. In this paper, a general study on concepts of a robot being used in monitoring and controlling the traffic is presented. The robot totally has 12 degree of freedom (d.o.f), five for an arm and one for actuating the neck and one for a movement of the base. The moving mechanism of traffic-control robot has 12 servomotors. It is equipped with a radio camera and controllers, which allow operation from a remote location. First, a sensing system composed of cameras in the street is developed. By combining the sensing signals and the internal state of the robot, the movements of robot are controlled respective to traffic flow like as real police in real-time. Secondly, a planning algorithm for the robot to performs the command movements like a police. Based on the information from cameras, the robot provides the exact movements of 2 arms and body suitably. Finally, experimental evaluation of the performance of traffic-control robot showed it to be similar to that of traffic police managing and controlling the traffic in real time. The robot has characteristic features of kinematical design and is capable of moving two arms and body performing the complex movements on controlling the traffic like a real traffic police.

Designing Self-feeding System for Increasing Independence of Elders and Parkinson People

Nguyen Truong Thinh,Tuong Phuoc Tho,Nguyen Thanh Tan 제어로봇시스템학회 2017 제어로봇시스템학회 국제학술대회 논문집 Vol.2017 No.10

This paper describes a customized self-feeding system designed to increase the independence of a elder person or Parkinson patient who is unable to use his/her arm for self-feeding. Besides, the procedures of design and development of the system are also carried out, and other its tasks control manipulator to feed the food to patients based on nutrients management for patients. This system can help patients self-control his meal replacement for the care of a family member or care worker thereby saving a lot of time and effort of caregivers, and, nutritional management software of each meal will allow caregivers understand nutritional information of the patients in the diet which can not change to improve the quality of meals for patients. The self-feeding system is experienced and evaluated with several cases in nursing home to give suitable design. The experimental results show that this self-feeding system provides a viable alternative to assisting independence in self-feeding as measured by ingesting time and nutrition intake. The self-feeding system is operated autonomous by itself and sent food"s data and relative information to monitoring computer based on Internet. Besides, the tool of management can analyze the data according to the nutritional standards, and controller control movements of manipulator and automation tray based on health situation and needs of patients.

The effective model of the human Acetyl-CoA Carboxylase inhibition by aromatic-structure inhibitors

Nguyen Truong Cong Minh,Bui Tho Thanh,Le Xuan Truong,Nguyen Thi Bang Suong,Le Thi Xuan Thao 한국전기전자학회 2017 전기전자학회논문지 Vol.21 No.3

The research investigates the inhibition of fatty acid biosynthesis of the human Acetyl-CoA Carboxylase enzyme by the aromatic-structure inhibitors (also known as ligands) containing variables of substituents, contributing an important role in the treatment of fatty-acid metabolic syndrome expressed by the group of cardiovascular risk factors increasing the incidence of coronary heart disease and type-2 diabetes. The effective interoperability between ligand and enzyme is characterized by a 50% concentration of enzyme inhibitor (IC50) which was determined by experiment, and the factor of geometry structure of the ligands which are modeled by quantum mechanical methods using HyperChem 8.0.10 and Gaussian 09W softwares, combining with the calculation of quantum chemical and chemico-physical structural parameters using HyperChem 8.0.10 and Padel Descriptor 2.21 softwares. The result data are processed with the combination of classical statistical methods and modern bioinformatics methods using the statistical softwares of Department of Pharmaceutical Technology – Jadavpur University – India and R v3.3.1 software in order to accomplish a model of the quantitative structure - activity relationship between aromatic-structure ligands inhibiting fatty acid biosynthesis of the human Acetyl-CoA Carboxylase.

A New Dimeric Lignan from the Stems of Willughbeia edulis

Nguyen, Hai Xuan,Do, Truong Nhat Van,Le, Tho Huu,Dang, Phu Hoang,Nguyen, Mai Thanh Thi,Nguyen, Nhan Trung The Korean Society of Pharmacognosy 2022 Natural Product Sciences Vol.28 No.2

As part of our continued study on the chemical constituents of Willughbeia edulis stems, a new dimeric lignan named edulignan (1) was isolated from its EtOAc-soluble extract. Based on NMR spectroscopic interpretation, the planar structure of 1 has been suggested to have two 2-substituted 4-chromanone subunits with different stereochemical configurations. In addition, the MS/MS analysis of the products obtained by acid-catalyzed hydrolysis of 1 was supportive of its structure. Unfornatually, the new compound 1 did not show 𝛼-glucosidase inhibitory activity with an IC₅₀ value > 250 𝜇M.

Direct fabrication of graphitic carbon nitride-wrapped titanate nanotube arraystoward photoelectrochemical water oxidation in neutral medium

Tho Truong Nguyen,Hong-Huy Tran,Thi Minh Cao,Viet Van Pham 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.9

Realizing a long-term, high-performance, and affordable photocatalytic setting for water splitting processesremains challenging despite the tremendous promise. We present a direct fabrication of graphitic carbon nitride-wrappedtitanate nanotube array (gC3N4-wrapped TNA) heterojunction photoelectrodes via a chemical vapor deposition-likeprocess that leverages the pyrolysis and sublimation of melamine at 500 oC. The gC3N4-wrapped TNA heterojunctionphotoelectrodes show a 16 times enhancement of current density and photo-response than bare TNAs. Such a remarkableenhancement comes from the effective charge separation of the gC3N4/TNA interfaces, consequently acceleratingwater splitting to generate oxygen under visible light. In addition, our gC3N4-wrapped TNA photoelectrodes are developedunder a neutral condition that significantly increases their widespread use for practical devices.

The effective model of the human Acetyl-CoA Carboxylase inhibition by aromatic-structure inhibitors

Minh, Nguyen Truong Cong,Thanh, Bui Tho,Truong, Le Xuan,Suong, Nguyen Thi Bang,Thao, Le Thi Xuan Institute of Korean Electrical and Electronics Eng 2017 전기전자학회논문지 Vol.21 No.3

The research investigates the inhibition of fatty acid biosynthesis of the human Acetyl-CoA Carboxylase enzyme by the aromatic-structure inhibitors (also known as ligands) containing variables of substituents, contributing an important role in the treatment of fatty-acid metabolic syndrome expressed by the group of cardiovascular risk factors increasing the incidence of coronary heart disease and type-2 diabetes. The effective interoperability between ligand and enzyme is characterized by a 50% concentration of enzyme inhibitor ($IC_{50}$) which was determined by experiment, and the factor of geometry structure of the ligands which are modeled by quantum mechanical methods using HyperChem 8.0.10 and Gaussian 09W softwares, combining with the calculation of quantum chemical and chemico-physical structural parameters using HyperChem 8.0.10 and Padel Descriptor 2.21 softwares. The result data are processed with the combination of classical statistical methods and modern bioinformatics methods using the statistical softwares of Department of Pharmaceutical Technology - Jadavpur University - India and R v3.3.1 software in order to accomplish a model of the quantitative structure - activity relationship between aromatic-structure ligands inhibiting fatty acid biosynthesis of the human Acetyl-CoA Carboxylase.

Robot Supporting for Deaf and Less Hearing People

Nguyen Truong Thinh,Tuong Phuoc Tho,Tran Thi Thuy Nga 제어로봇시스템학회 2017 제어로봇시스템학회 국제학술대회 논문집 Vol.2017 No.10

This paper discusses the development of a service robot for translating spoken language text into signed languages and vice versa. The motivation for our study is the improvement of accessibility to public information announcements for deaf and less hearing people. The robot can translate Vietnamese sign language into speech and recognize Vietnamese/English speech to suitable gesture/sign language. The paper describes the use of service robot in a sign language machine translation system. Several sign language visualization methods were evaluated on the robot. In order to perform this study a machine translation service robot that uses display screen on robot as service-delivery device was developed as well as a 3D avatar. It was concluded that service robot are suitable service-delivery platforms for sign language machine translation systems.

Solving Inverse Kinematics of DeltaRobot Using Anfis

TuongPhuoc Tho,Nguyen Truong Thinh,Nguyen Trong Tuan,Ma Ngoc Thanh Nhan 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

Thepaperpropose a methodology using the ability of ANFIS (Adaptive Neuro-Fuzzy Inference System) to solve inverse kinematics problem of Delta parallel robot. A five layer neural network of ANFIS is used to adjust input and output parameters of membership function in a fuzzy logic controller. The hybrid algorithm is used for training this network. In this algorithm, the least square estimation method is applied for the tuning of linear output membership function parameters and the error backpropagation method is used to tune the nonlinear input membership function parameters, it is possible to predict position end-effector exactly against inverse kinematics and reduce mathematical representation of the system. Virtual Reality (VR) is used to simulation trajectory of robot. Computer simulations with Matlab ver. 2013b conducted on 3DOF robot Delta shows the effectiveness of the approach.

Aromatic cages B^0/+₄₂: unprecedented existence of octagonal holes in boron clusters

Tai, Truong Ba,Lee, Sang Uck,Nguyen, Minh Tho The Royal Society of Chemistry 2016 Physical chemistry chemical physics Vol.18 No.17

<P>The cage-like structures containing octagonal holes are located as the lowest-lying isomers for the B-42(0/+). The presence of octagonal holes, which have been found for the first time, not only gives us new insight into the bonding motif, but also marks a breakthrough in the structural characteristics of boron clusters since they were never expected to be stable units for elemental clusters. These cages are composed of both delocalized sigma and pi electron systems that consequently make them aromatic and thermodynamically stable.</P>

Design and development of the sorting system based on robot

Tuong Phuoc Tho,Nguyen Truong Thinh 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

Sorting is one of the important tasks in production line. Using Robot to increase productivity in automatic sorting system interests a large of researchers. In this paper, we recommend a sorting system based on Robot that can identify the position and properties of objects. The sorting system uses the camera placed on the top of the mechanical conveyor belt. With the images captured by the camera, the software will perform the algorithms to identify the location and characteristics of the object (ei. tomatoes), the data of objects is used by pick and place process that synchronize with controller of robot. The sorting process comprising the steps of: detecting the object, determine the object properties (ei. color, size, shape, ...), locate the object, calculate the actual gripping position, the results of the sorting process will be stored and converted into signals to communicate with the control system of robot to perform the sorting tasks. The algorithms will be experimented on Delta robot 3 D.O.F, results will be analyzed and evaluated to calculate the workspace of Robots, so that the productivity and energy efficiency is appropriate.