16 BÁO CÁO CỦA CÁN BỘ VÀ CỘNG TÁC VIÊN CỦA VIỆN CÔNG NGHỆ MỚI

16 BÁO CÁO CỦA CÁN BỘ VÀ CỘNG TÁC VIÊN

CỦA VIỆN CÔNG NGHỆ MỚI

THAM DỰ HỘI NGHỊ KHOA HỌC QUỐC TẾ Ở PATTAYA, THÁI LAN

Như tin đã đưa, Hội nghị quốc tế về “Công nghệ xanh vì sự sinh tồn trong tương lai” do Trường ĐH Bách khoa Hoàng gia Tawan-Ok, Thái Lan phối hợp với 10 trường đại học và viên nghiên cứu trên thế giới, trong đó Viện Nghiên cứu và Phát triển Công nghệ mới, đồng tổ chức ở Pattaya từ ngày 29-31 tháng 5 năm 2013.

Nội dung hội nghị rất rộng và phong phú, được chia thành ba tiểu ban chuyên môn:

1/ Kỹ thuật năng lượng và Công nghệ, gồm các lĩnh vực: Công nghệ vật liệu; Khí hóa lỏng; Hệ thống pin phân lớp; Kiến trúc; Năng lượng mặt trời; Năng lượng tua bin-gió; Công nghệ nano; Phần mềm; Hệ tự động và robot; Công nghệ hạt nhân; Y học cổ truyền Thái Lan; Môi trường; Biến đổi khí hậu; Toán; vật lý; Hóa học và những chủ đề liên quan khác.

2/ Lương thục và Nông nghiệp, gồm các lĩnh vực: Khoa học lương thực và Chế biến; An toàn lương thực thực phẩm; Ẩm thực Thái; Công nghệ sinh học; Sản phâm thiên nhiên; Vật liệu sinh học; Sinh học; Khoa học nông nghiệp; và các chủ đề liên quan khác.

3/ Quản lý và Kinh doanh, gồm các lĩnh vực: Quản trị và kinh doanh; Khoa học và Công nghệ dạy học; Đồ thủ công; Văn hóa và Du lịch; Biểu diễn nghệ thuật; Nghệ thuật thị giác; Xuất bản; Phát thanh; Đa phương tiện; Hội họa thời trang; Quảng cáo và nhiều chủ đề liên quan khác.

Bạn đọc có thể tham khảo thêm qua trang web  http://www.rmutto.ac.th/rtoic2013

Cán bộ và cộng tác viên của Viện Công nghê mới có 16 báo cáo khoa học. Sau đâu là các bản tóm tắt.

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1. A Novel Method for Pornography Picture Detection

in Large Scaled System

                                Hoang Trung Nguyen1, Minh Quang Nguyen2

Adress:

1/ Ph.D. Student Nguyen Hoang Trung, Director of R/D Department, Naiscorp joint stock company, Hanoi, Vietnam;

*E-mail : trungnh@socbay.com.

2/ Nguyen Minh Quang, Department of Software Engineering, Faculty of Information and Technology, Hanoi National University of Education, Hanoi, Vietnam.

Abstract

This paper presents a method for detecting pornography or nudity in color image for large scale upload system. Based on a trend of uploaded pictures that nudity is often uploaded in group, we apply an algorithm to retrieve a probability of each picture and then decide if the picture group is pornography or not. To calculate the probability of each picture, we use three color spaces to increase the precision of detection: RGB, HSV and IHLS. The skin regions are analyzed for clues indicating nudity or non-nudity such as their sizes and relative distances from each other. The proposed pornography picture detection method for large scale upload picture system is able to detect nudity with a 95.23% recall and an 0.04 % false positive rate. It correctly identified 5098 out of 5353 nude images.

Keywords:  nudity detection, uploaded pictures, color space, skin region, pornography detection.

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2. Basic Counseling Skills of Academic Advisory in Universities of Vietnam

By Nguyen Thi Hang Phuong

Adress: Ph. D. Student Nguyen Thi Hang Phuong,

Faculty of Psychology and Education, Da Nang Pedagogical University, Vietnam

Email: hangphuong19@gmail.com

Abstract

Undergraduate training is both social knowledge provided to students, while also providing vocational skills so that they have a good future. Therefore, in  universities there are now a teams of academic advisors who are responsible for advising students about learning, living, career orientation and psychological problems of the age group. Consulting activities are interactive activities, conversation, said, shared between people with each other, so, in order to operate effectively advising students, academic advising team needs to have the basic advice skills. A survey of 412 academic advisors in 18 universities of Vietnam, we found that the group of basic counseling skills of academic advisors include three categories: skills groups establishing and maintaining relationships with students; skills groups providing information and skills groups solving problems. In this report, we will present some results on these problems.

Keywords: Counseling Skills; Academic Advisor; Undergraduate training; Education; Consulting activities.

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3. The Demand  Level  of  Student  to Receive Academic Counseling in Universities of Vietnam and Vietnamese Students Studying in Thailand

By Nguyen Thi Hang Phuong

Adress: Ph. D. Student Nguyen Thi Hang Phuong,

Faculty of Psychology and Education, Da Nang Pedagogical University, Vietnam

Email: hangphuong19@gmail.com

Abstract

Higher education is to help students to firmly step in the independent life, to build their own a direction for the future based on the capacity and condition of the students. Starting from Harvard University in 1872 and so far, many universities in world focused on training with the learner-centered  teaching, therefore important task of education is to help students understanding the task and to plan their own learning. The academic advisors will advise, help shape the student for learning plan based on the capacity of students, to help them meet the requirements of training institutions and employers. Then, what is the demand level of the students to receive counseling ? We have conducted research a demand of advice, help to study for over 1719 students at 18 universities in Vietnam, and for the 30 Vietnamese students studying at the Universities in Thailand. In this paper  we will presented some research results of these problems.

Keywords: Higher Education; Academic Advisor; Academic Counseling; Learner-centered teaching.

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4. Some Difficulties and Advantages in Training Students for Social Work

at Da Nang Pedagogical University, Vietnam

By

Nguyen Thi Hang Phuong and Bùi Văn Vân

Adress:

1/ Ph. D. Student Nguyen Thi Hang Phuong,

Faculty of Psychology and Education, Da Nang Pedagogical University, Vietnam

Email: hangphuong19@gmail.com

2/ MAs. Bui Van Van,

Faculty of Psychology and Education, Da Nang Pedagogical University, Vietnam

Abstract

Social Work has been mentioned from hundreds of years ago in the world, but in Vietnam, in 2009 the Government has approved social work as a formal profession. A survey of 60 students and 10 university lectures who are teaching the Social work at Thang Long University and at  the Da Nang Pedagogical University give us that there are many difficulties in the training. The difficulties are that the curriculum and the content of lesson are not quality; the capacity of university lectures is limited; the labor market is not ready graduates. However, there are some advantages that the social work training in Viet Nam is young, so it attracted a large number of students; all society is interested in this training.

In this paper, we will present some difficulties and advantages in the process of training students for the social work in Vietnam, in general, and at the Da Nang Pedagogical University, in particular. Since then we suggest some ways to develop the potential of the social work which is very young in Vietnam today.

Keywords: Training; Social Work; University Lecture; Curriculum; Lesson; Training.

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5. Discrete Linear Systems and Some Economic Models

By

Assoc. Prof. Dr. Nguyen Huynh Phan

Institute for Research and Development of New Technologies, Vietnam

Email: huynhphan@viencongnghemoi.com

Web: http://viencongnghemoi.com

Abstract

We consider a discrete linear system described by the equation

x(t + 1) = Ax(t) + Bu(t),

where  t ; A, B are real matrices of degree  nn and  nm;   x and u are maps  x : T  ; u :  T  ; t is called a time variable ; x is called a state function ; u  is called a control function.

Let us consider an economic model given by a system of equations

(1)

Where Y(t) is the General Domestic Product (GDP) of year t; C(t) is the consume depending for GDP of last year; I(t) is the investment; u(t) is the consume independent for GDP; .

We consider now a balance model of many sectors described by equations

(2)

where  is the consumption norm of the product i to produce a unit of the product j;  is the consumption demand for the product i.

In this paper we proof that the system (1) is completely controllable if only if  and proof that the system (2) is always not controllable.

Keywords: Discrete Linear System; Real Matrix; Time Variable; State Function; Control Function; Economic Model; Completely Controllable

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6. Thinking About Time and the Formation of Time-Oriented Symbol

For Preschool Children

 

MSc. Le Thi Thu Ha

Head Office, Institute Research and Development of New Technology

17 Pham Kinh Vy Street, Ben Thuy  Ward, Vinh City, Nghe An Province, Vietnam

Email: lethithuha2610@yahoo.com

 

Abstract

Time is a very important factor in human life, but this unit of measurement is relative. As some scientists, the time is the 4th dimension in the familiar three-dimensional space. So, coordinates of any object is the projection perpendicular to the dimensions, including time. Therefore, the necessity of thinking about time and time-oriented symbol for preschool children was affirmed. According to our research results, we can help efficiently the formation of icons in general, and also time-oriented for pre-school children through modern teaching methods.The development of the child will more complete in future.

Keywords: Thinking; Time-Oriented Symbol; Preschool Children; Modern Teaching Method.

 

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7. Non Timber Forest Products in Pu Luong Natural Reserve,

Thanh Hoa Province, Vietnam

                                  Dau Ba Thin1, Pham Hong Ban2, Hoang Van Chinh1, Le Thi Anh Tuyet1

1 Hong Duc University, Thanh Hoa province, Vietnam

2 Vinh University, Nghe An province, Vietnam

(For all correspondence: Dr. Le Thi Anh Tuyet, phone: 0084- 943.413.298; fax: 0084- (037)3910.475; email: lethianhtuyet@hdu.edu.vn)

Abstract

Non timber forest products (NTFPs) still play an important role in the human life in Vietnam. The current study represents the investigation of (NTFPs) in Pu luong nature reserve, Thanh Hoa province, Vietnam. The results showed 802 species belong to 437 genus and 121 families of plant NTFPs were used by local people. Among of them belong to the medicinal plants, food plants, tornamental plants and essential oil plants, so on. Nevertheless, the use these NTFPs offers self-sufficient and self-support.  Most local people here still see that the forest resource is a raw material warehouse available to provide everything for their lives so that the conservation and restoration of forest resources have not been attended by all people yet. Currently, a number of rare species have been exhausted and remaining species are low using worth and difficult markets so few people are interested in. This report could be suggestion for local people interesting in restoration and developing of the local NTFPs.

Keywoods: medicinal plants, natural reserve, NTFPs, Pu Luong.

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 8. Preserve and Maintain the Treadmill Using Water  in the Mountainous of  Thanh Hoa  province , Vietnam

By

Le Khac Dong, Le Thi Anh Tuyet

Adress:

1/ Mr. Le Khac Dong, Pu Hu Nature Reserve, Thanh Hoa Province, Vietnam

2/Dr. Le Thi Anh Tuyet, Hong Duc University, Thanh Hoa province, Vietnam

Email: tuyetlean@yahoo.com

 Abstract

Currently, the mountainous areas of  Thanh Hoa Province are difficult for traffic and travel, the demand for electric power supply is limited. In the Pu Hu nature conservation, the terraced fields higher than the creek poured from the top of the mountain; the water from the lower to higher than 3-6 m to irrigate the fields. This is no small difficulty. But do not know since when, the Thai people in Thanh Hoa Province have created “treadmill using water”. While that electric power is not enough energy for daily activities of the people here. Since then, life after life, the people  has transfered the experience to create the  treadmill using water, until today using simple materials from crops being planting in popularity in Quan Hoa District, Thanh Hoa Province, in addition, by skillful hands, people have made the non-motorized pumps. The Luong River and river branches of  the  heroic Ma River which stretches in the western of Thanh Hoa province, that is favorable to the installation of the “treadmill using water” of these hometowns. Because the river branches always has water all year, so  “treadmill using water  operates continuously.

Keywords: Treadmill using water; Mountain; Nature Conservation; Field.

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9. Cassava Starch Wastewater and Microalgae: A Promising Partnership for Biodiesel Production and Environmental Treatment

By

Nguyen Le Ai Vinh and Nguyen Thi Giang An

Adress :

1/ Dr. Nguyen Le Ai Vinh, Faculty of Biology, Vinh University, Vietnam

Email : vinhnla@gmail.com,

2/ Dr. Nguyen Giang An, Faculty of Biology, Vinh University, Vietnam

Email : nguyengiangan@gmail.com

Abstract

Cassava starch wastewater treatment is remaining challenges for the cassava processing factories because it requires expensive technologies and does not give any economic benefit except biogas. Moreover, the treated wastewater still contains high level of nutrients such as nitrogen and phosphorus so that it continues causing pollution for water resource. The idea of utilizing the cassava starch wastewater as a source of nutrients to culture microalgae for biodiesel production may solve above problems. We have successfully isolated several microalgae strains which can well adapt with the cassava starch wastewater. For next steps, we are calling for research co-operations in biological and chemical analyses as well as culturing system development.

Keywords: Cassava Starch Wastewater;  Microalgae; Biodiesel Production; Environmental Treatment; biological and chemical analyses; water resource

 

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10. Characterization of Biochar From Pyrolysis of Agricultural Resides

Ho Thi Phuong1,*, Dao Thi Minh Chau1, Nguyen Duc Dien1, Md. Azhar Uddin2

1Department of Biology, Vinh University, 182 Le Duan, Vinh city, Nghe An province, Vietnam.

2Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushima Naka, Kita-ku, Okayama 700-8530, Japan.

* Email: phuongenv.vinhuni@gmail.com

Abstract: Biochar has received increasing attention because it is believed to sequester carbon and improve soil properties. Therefore, applying agricultural residues-derived biochar to soils may become one of the several optional solutions for disposing agricultural waste in Vietnam. However, understanding of biochar`s physicochemical characteristics is very important to guide the researchers in identifying specific end uses. In this study, biochar were produced by pyrolysis of rice husk and rice straw, most abundantly available agricultural wastes in Vietnam and South-East Asia. The effect of pyrolysis temperature (350-550 °C) on physicochemical properties of the biochar was investigated. The results indicated that ash content, specific surface area, carbon content and water adsorption capacity increased as the pyrolysis temperature increased, while the yield, hydrogen and oxygen content decreased with the increase of pyrolysis temperature. The volatiles released during the pyrolysis process creating pores in the carbonaceous materials which was revealed with the scanning electron microscope images. The increase of surface area provides more adsorption sites and space for water retention. The cation exchange capacity (CEC) of biochar decreased with increasing temperature; however the pH became more alkaline at higher temperatures. The findings suggest that lower temperature biochar will be better used to increase soil CEC while the high temperature biochar will enhance soil pH.

Keywords: Agricultural residues, biochar, pyrolysis, rice husk, rice straw

 

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11. Potential of Biological Resource of Microalgae in Freshwater Bodies in the North Central Part of Vietnam

By

Le Thi Thuy Ha, Nguyen Dinh San and Vo Hanh

Adress: 1/Dr. Le Thi Thuy Ha, Faculty of Biology, Vinh University, Vietnam.

Email: lethuyhadhvinh@gmail.com

2/ Assoc. Prof. Dr. Nguyen Dinh San, Faculty of Biology, Vinh University, Vietnam

3/ Prof. Dr. Vo Hanh, Faculty of Biology, Vinh University, Vietnam

Abstract

The species composition of microalgae in freshwater bodies in the north central part of Vietnam (Thanh Hoa, Nghe An, Ha Tinh, Quang Binh, Quang Tri and Thua Thien Hue provinces) have been being investigated frequently and continuously for last two decades. On the basis of reviewing the scientific papers published from 1983 to 2011, we have listed 651 species and subspecies of microalgae distributing in ponds, lakes, reservoirs and rivers in this region. Of these microalgae, we determined 8 species that are potential for application in aquaculture, wastewater treatment and biodiesel production.

Keywords: Biological Resource; Microalgae; Freshwater Bodies; wastewater treatment; biodiesel production.

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12. Application of biotechnology to plant some native medicinal species in order to assist local people  in forest sustainable development and protection

By

Dao Thi Minh Chau, Nguyen Thi Giang An, Ho Thi Phuong

Adress: Ph.D. Student Dao Thi Minh Chau, Dr. Nguyen Thi Giang An,

 MAc.Ho Thi Phuong,

 Department of  Biology, Vinh University, 182 Le Duan, Vinh city, Nghe An province, Vietnam.

Abstract:

Pu Huong Nature Reserve (Nghe An province, in north-central of Vietnam) is one of three special-use forests make Biosphere Reserve Western Nghe An. In the protected area, there are 50,320 people is living in the buffer zone and 515 people is living in the core area. Almost of local people are minority groups whose lives depend on the forest exploitation. When forest management policies are more closed, local people rushed to the exploitation of NTFPs for China market. After 10 years of exploitation, the NTFPs resources have been exhausted, especially medicinal plants. In this report, we present the first content: Exhaustion of medicinal plants in Pu Huong Nature Reserve and the second content: Application of biotechnology for breeding and planting 2 rare medicinal species (Ardisia silvestris Pit. and Anoechtochilus setacius Blume) in the forest canopy. The success of this research has helped local peple improve their income from forests and forest sustainable management.

Keywords: Non-timber forest products (NTFPs); Rare medicinal plants; Tissue culture.

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13. Green Technology Application

for Sustainable Economic Development in Vietnam

By

MA. Nguyen Thu Cuc; PhD. Nguyen Minh Phuong

Adress:  MA. Nguyen Thu Cuc; PhD. Nguyen Minh Phuong;

 

Economic Department, Vinh University, No. 182 Le Duan street, Vinh City, Nghe An province, Vietnam;

Email: minhphuongn78@yahoo.com

Abstract:      

Vietnam is one of the countries having rapid urbanization rate and is one of five countries that will be greatly affected by climate change. These bring about many issues that need to be dealt with. What achievement that green technology will bring to Vietnam? This article will give us a brand new insight into urban environment, nature and economy: green technology and green economy.

Keywords: Vietnam, sustainable development, green technology, green economy.

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14. Green Photonics Towards a Sustainable Energy Economy and Bright Future

Trung-Thanh Le, PhD

 

Faculty of Information Technology, Hanoi University of Natural Resources and Environment

No. 41A, K1 Road, Phu Dien, Tu Liem, Ha Noi, Viet Nam

Email: Thanh.le@hunre.edu.vn Tel: +84-985 848 193

Abstract:

Photonic technologies play an important and significant role in reducing our environmental impact. The importance of green photonics technologies is presented in this study. Examples are discussed covering five key green photonic technologies such as photovoltaic, energy efficient lighting display, energy efficient photonic communications, advanced sensors, instrumentation and clean manufacturing. The importance of considering the full lifetime environmental impact of products is also discussed. Industrial and legislative strategies are reviewed and a strategy is presented for accelerating the development of green photonics technologies and promoting their adoption into society. The paper describes not only photonics for clean energy generation and solid state lighting but also other interesting applications in energy loss reduction, environmental sensing and light pollution effects. In addition, a strategy for building a green network is outlined in this study.

 

Keywords:  Green photonics, Silicon green photonics, energy efficiency, eco-efficiency, sustainability, laser manufacturing, energy economy

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15. Screening of some traditionally used medicinal plants of Muong group in Vietnam for antibacterial activity

Le Thi Anh Tuyet1, Trinh Thi Huong1, Lai Thi Thao1, Hoang Van Chinh1, Le Thi Huong1, Hoang Ngoc Hung1, Nguyen Giang An2

 

1 Hong Duc University, Thanh Hoa province, Vietnam

2 Vinh University, Nghe An province, Vietnam

(For all correspondence: Dr. Le Thi Anh Tuyet, phone: 0084- 943.413.298; fax: 0084- (037)3910.475; email: lethianhtuyet@hdu.edu.vn)

 

Abstract

Plant-derived drugs remain an important resource, especially in developing countries, to combat serious diseases. Approximately 60-80% of the worlds population still relies on traditional medicines for the treatment of common illnesses.

Herbal medicine represents one of the most important fields of traditional medicine in Vietnam, predominately in rural areas. Thus, phytotherapy is practiced by a large proportion of Vietnamese population to heal several physical, physiological, mental and social ailments. To promote the proper use of herbal medicine and to determine their potential as sources for new drugs it is essential to study medicial plants, which have folklore reputation, in a more intensified way. The current study represents the investigation of 10 traditionally used medicinal plants of Muong group in Thanh Hoa province,Vietnam. The plants were dried and extracted with two different solvents (n-hexane and methanol) to yield 20 crude extracts. The obtained extracts were tested for their antibacterial activity against two Gram-positive bacteria, two Gram-negative bacteria using agar diffusion method. Antibacterial activity was shown two Gram-positive bacteria, one Gram-negative bacterium. The highest antibacterial activity was exhibited by the methanolic extract of Cratoxylum pruniflorum Kurtz., against Bacillus subtilis, the n-hexane extracts of Eupatorium odoratum L., and Excoecaria cochinchinensis Lour., against Pseudomonas aeruginosa, and the n-hexane extract of Pluchea pteropoda Hemls., against  Staphyloccocus aureus.

 

Keywords: antibacterial activity, Muong group, medicial plants

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16. Combinated-Voltammetric determination of iron and copper in different waters

By

Ho Sy Linh*,a,b, Nguyen Hai Minhc,d.

 

Adress:

1/ Ph.D. Ho Sy Linh

a Department of Chemistry, Dong Thap University, 783 – Pham Huu Lau , city Cao Lanh, Dong Thap province, Viet Nam.

b Department of Physical and Analytical Chemistry, National Research Tomsk Polytechnic University, 634050, 30 – Lenin Avenue, Tomsk, Russia.

email: hsl317@gmail.com

2/ Ph.D. Nguyen Hai Minh

c Department of Bioengineering and Organic Synthesis, National Research Tomsk Polytechnic University, 634050, 30 – Lenin Avenue, Tomsk, Russia.

d Institute for Research and Development of New Technologies, 17 Pham Kinh Vy street, Ben Thuy ward, Vinh city, Nghe An province, Viet nam.

 

Abstract:

 

Iron and copper play an important role for animals, lack or excess of these elements leads to anemia or poisoning. Therefore, to assess the nutritional status, determination of iron and copper in food production and processing of agriculture is now very important. The goal of this work was development a new method of joint voltammetric determination of iron and copper in the feed and feed additives.

Based on these results, we proposed an algorithm technique for combination of inversion voltamperometry in the determination of iron and copper in the feed and feed additives.

 

Keywords: voltammetry, methodology, combined determination of iron and copper, feed, feed additives, nutrient.

 

 

 

 

 

 

 

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