Thứ Năm, 11 tháng 1, 2018

Báo cáo tổng hợp kết quả thực hiện năm 2009: Thực thi mô hình dự báo và ứng phó sự cố tràn dầu

Title: Báo cáo tổng hợp kết quả thực hiện năm 2009: Thực thi mô hình dự báo và ứng phó sự cố tràn dầu
Authors: Trần, Hồng Thái
Nguyễn, Xuân Hiền
Keywords: Ô nhiễm môi trường;Môi trường biển;Tràn dầu;Việt Nam
Issue Date: 2009
Publisher: H. : ĐHQGHN
Description: 85 tr.
URI: http://repository.vnu.edu.vn/handle/VNU_123/24730

Báo cáo tổng hợp: Các phương pháp luận về điều tra đánh giá và dự báo sự cố tràn dầu

Title: Báo cáo tổng hợp: Các phương pháp luận về điều tra đánh giá và dự báo sự cố tràn dầu
Keywords: Điều tra;Dự báo;Tràn dầu;Biển
Issue Date: 2009
Publisher: H. : ĐHQGHN
Description: 78 tr.
URI: http://repository.vnu.edu.vn/handle/VNU_123/24769

Gia công và phân tích mẫu phục vụ xây dựng phông môi trường

Title: Gia công và phân tích mẫu phục vụ xây dựng phông môi trường
Authors: Nguyễn, Thị Việt Liên
Nguyễn, Vũ Tường
Phạm, Thị Minh Hạnh
Đào, Thị Thủy
Lê, Thị Hường
Keywords: Môi trường;Vùng Vịnh;Phân tích mẫu;Sông Sài Gòn
Issue Date: 2009
Publisher: H. : ĐHQGHN
Description: 257 tr.
URI: http://repository.vnu.edu.vn/handle/VNU_123/24815

Thứ Ba, 2 tháng 1, 2018

Phong hóa : Thứ Sáu, 13 Decembre 1935

Title: Phong hóa : Thứ Sáu, 13 Decembre 1935
Keywords: Báo chí
Issue Date: 1935
Publisher: H: Tòa soạn và trị sự
Description: 16 tr.
URI: http://repository.vnu.edu.vn/handle/VNU_123/21711

Phong hóa : Thứ Sáu, 20 Decembre 1935

Title: Phong hóa : Thứ Sáu, 20 Decembre 1935
Keywords: Báo chí
Issue Date: 1935
Publisher: H: Tòa soạn và trị sự
Description: 16 tr.
URI: http://repository.vnu.edu.vn/handle/VNU_123/21737

Lưu Trọng Lư

Title: Lưu Trọng Lư
Authors: Lưu, Trọng Lư,1912-1991
Keywords: Văn học Việt Nam
Issue Date: 2002
Publisher: H: Đại học Quốc gia Hà Nội
Description: tr. 636-674
URI: http://repository.vnu.edu.vn/handle/VNU_123/21769

Tú Mỡ

Title: Tú Mỡ
Authors: Tú Mỡ, 1900-1976
Keywords: Văn học Việt Nam
Issue Date: 2002
Publisher: H: Đại học Quốc gia Hà Nội
Description: tr. 675-708
URI: http://repository.vnu.edu.vn/handle/VNU_123/21774

Nguyễn Quang Sáng

Title: Nguyễn Quang Sáng
Authors: Nguyễn, Quang Sáng, 1932
Keywords: Văn học Việt Nam
Issue Date: 2002
Publisher: H: Đại học Quốc gia Hà Nội
Description: tr. 709-750
URI: http://repository.vnu.edu.vn/handle/VNU_123/21780

Thứ Ba, 26 tháng 12, 2017

Magnetic behaviors of arrays of Co-Ni-P nanorod: Effects of applied magnetic field

Title: Magnetic behaviors of arrays of Co-Ni-P nanorod: Effects of applied magnetic field
Authors: Luu, Van Thiem
Pham, Duc Thang
Dang, Duc Dung
Le, Tuan Tu
Kim, CheolGi
Keywords: Magnetic anisotropy;Coercivity;Cobal-nickel-phosphor nanorod;High magnetic anisotropy;Room temperature ferromagnetism;X ray diffraction
Issue Date: 2015
Publisher: Japan Institute of Metals (JIM)
Citation: Scopus
Abstract: The Co-Ni-P nanorods were fabricated by electrodeposition method by using the porous polycarbonate template. The investigation by mean of X-ray diffraction and high-resolution transmission electron microscopy indicated that samples were nanocrystalline clusters embedded in the amorphous base. The samples exhibited a room temperature ferromagnetism with the high magnetic anisotropy along the rod. The applied magnetic fields during the fabrication of the Co-Ni-P nanorods was strongly influenced by the magnetic properties. The MR/MS ratio and coercivity rapidly increased when the magnetic applied field changed from 0 to 0.21 T.
Description: Materials Transactions, Volume 56, Issue 9, 2015, Pages 1327-1330
URI: https://www.jstage.jst.go.jp/article/matertrans/56/9/56_MA201520/_article
http://repository.vnu.edu.vn/handle/VNU_123/34122

Identifying reduplicative words for Vietnamese word segmentation

Title: Identifying reduplicative words for Vietnamese word segmentation
Authors: Tran, Ngoc Anh
Dao, Thanh Tinh
Nguyen, Phuong-Thai
Nguyen, Hong Quan
Keywords: Vietnamese word segmentation;reduplicative word;reduplicative rules;Word formations;Computational linguistics;Computer programming
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers Inc.
Citation: Scopus
Abstract: This paper proposes a method based on linguistic word-formation rules and dictionaries for determining reduplicative words in Vietnamese. The key idea for identifying whether adjacent syllables in a text can form a reduplicative word based on its formation rules. For 2-syllable reduplicative words, this paper uses rules that describe the repeating and the opposing between pairs of initial consonants, rhymes and tones. Then the method is expanded to identify reduplicative words that have 3 or 4 syllables from 2-syllable ones for the Vietnamese word segmentation task. Experimental results showed that the F1-score was improved to 98.61% and that word segmentation errors were reduced significantly, 1.26%
Description: Proceedings - 2015 IEEE RIVF International Conference on Computing and Communication Technologies: Research, Innovation, and Vision for Future, IEEE RIVF 2015, 25 February 2015, Article number 7049878, Pages 77-82
URI: http://ieeexplore.ieee.org/document/7049878/
http://repository.vnu.edu.vn/handle/VNU_123/34125

A lithotrophic microbial fuel cell operated with pseudomonads-dominated iron-oxidizing bacteria enriched at the anode

Title: A lithotrophic microbial fuel cell operated with pseudomonads-dominated iron-oxidizing bacteria enriched at the anode
Authors: Nguyen, Thuy Thu
Luong, Tha Thanh Thi
Nguyen Tran, Phuong Hoang
Bui, Ha Thi Viet
Nguyen, Huy Quang
Dinh, Hang Thuy
Kim, Byung Hong
Pham, Hai The
Keywords: iron oxidizing bacterium;Pseudomonas;Electrodes;Bioelectric Energy Sources;ferrous ion;oxidation reduction reaction
Issue Date: 2015
Publisher: John Wiley and Sons Ltd
Citation: Scopus
Abstract: In this study, we attempted to enrich neutrophilic iron bacteria in a microbial fuel cell (MFC)-type reactor in order to develop a lithotrophic MFC system that can utilize ferrous iron as an inorganic electron donor and operate at neutral pHs. Electrical currents were steadily generated at an average level of 0.6mA (or 0.024mA cm-2 of membrane area) in reactors initially inoculated with microbial sources and operated with 20mM Fe2+ as the sole electron donor and 10ohm external resistance; whereas in an uninoculated reactor (the control), the average current level only reached 0.2mA (or 0.008mAcm-2 of membrane area). In an inoculated MFC, the generation of electrical currents was correlated with increases in cell density of bacteria in the anode suspension and coupled with the oxidation of ferrous iron. Cultivation-based and denaturing gradient gel electrophoresis analyses both show the dominance of some Pseudomonas species in the anode communities of the MFCs. Fluorescent in-situ hybridization results revealed significant increases of neutrophilic iron-oxidizing bacteria in the anode community of an inoculated MFC. The results, altogether, prove the successful development of a lithotrophic MFC system with iron bacteria enriched at its anode and suggest a chemolithotrophic anode reaction involving some Pseudomonas species as key players in such a system. The system potentially offers unique applications, such as accelerated bioremediation or on-site biodetection of iron and/or manganese in water samples. In this study, we attempted to enrich neutrophilic iron bacteria in a microbial fuel cell (MFC) typed reactor in order to develop a lithotrophic MFC system that can utilize ferrous iron as an inorganic electron donor and operate at neutral pHs. Our results proved the successful development of such a lithotrophic MFC system with iron bacteria enriched at its anode and suggest a chemolithotrophic anode reaction involving some Pseudomonas species as key players in such a system. The system potentially offers unique applications, such as accelerated bioremediation or on-site bio-detection of iron and/or manganese in water samples.
Description: Microbial Biotechnology, Volume 8, Issue 3, 1 May 2015, Pages 579-589
URI: http://onlinelibrary.wiley.com/doi/10.1111/1751-7915.12267/abstract
http://repository.vnu.edu.vn/handle/VNU_123/34126

Báo cáo tổng hợp kết quả thực hiện năm 2009: Thực thi mô hình dự báo và ứng phó sự cố tràn dầu

Title:  Báo cáo tổng hợp kết quả thực hiện năm 2009: Thực thi mô hình dự báo và ứng phó sự cố tràn dầu Authors:  Trần, Hồng Thái Nguyễn, X...