Tổng hợp tài liệu Khối Ngành Xã Hội tham khảo cho học sinh, sinh viên.
Based on the statistic data of social-economic present and development planning to 2020 of Thua Thien Hue province, land-base pollution load from development activities has been calculated by using the rapid assessment of the marine coastal environment method. The calculating results shown that, each year, development activities in Thua Thien Hu...
8 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 675 | Lượt tải: 0
In order to understand the present status of heavy metal contamination in Haiphong coast, rocky oyster (Saccostrea glomerata) and hard clam (Meretrix lyrata) were examined. The concentration of nine elements (As, Cd, Mn, Cr, Co, Cu, Pb, V and Zn) was determined in whole tissues of these species from Phu Long, Do Son and Quan Muc in March 2012. T...
8 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 606 | Lượt tải: 0
The experiment of making fishsource using a TTX-bearing puffer Toquigener gloerfelti as a material was conducted during 12 months in order to observe a trend of toxicity in the fishsource product. The result showed that toxicity had been decreased by time and after 12 months; about 86.43 - 93.93 % of initial toxicity was disappeared. The reason ...
5 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 644 | Lượt tải: 0
Coral is an invaluable source in the medical and pharmaceutical industries, in which lipids play a role as a major nutrient reserves and the energy for coral. In this paper, we focus on researching the content and composition of lipid and fatty acids of 8 coral species from Vietnam. The total lipid of studied samples ranged from 10.1 to 20.4%; T...
6 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 658 | Lượt tải: 0
Shrimp scad Alepes djeddaba is an important small pelagic species in Viet Nam, which contributes a large part of the fisheries resources. The main objective of this study was to establish an empirical estimate of the relation between target strength and length of shrimp scad at 38kHz, which can be served for assessments of these resources using ...
8 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 518 | Lượt tải: 0
Grouper seed harvested from wild sources provide importantly for the development of commercial marine fish farming. The grouper fingerling exploitation in the Gulf of Quy Nhon initially identified five species, including Banded grouper (Epinephelus amblycephalus), Yellow grouper (Epinephelus awoara), Longtooth grouper (Epinephelus bruneus), Mala...
9 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 653 | Lượt tải: 0
The South and South-central Vietnam continental shelf is a region with the diversely complicated conditions of geology. In spite of over the past many years of investigation, the fault systems in many places have remained poorly understood. In this paper, the author has studied and applied some techniques for interpretation of the newest gravity...
7 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 659 | Lượt tải: 0
This paper presents the results of numerical experiments of waves and a combined seawall interaction using a numerical wave channel. Firsly, the concept of numerical wave channel and the foudation for buiding a numerical wave channel is presented. Then, the experimental conditions for both numerical experiment and laboratory one are described. T...
7 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 480 | Lượt tải: 0
This paper presents some results of applicating three dimension (3D) numerical model to study and assessment influences of tidal oscillation, wind and wave action on characteristics of suspended sediment transport in Bach Dang estuary. Measures data were collected and processed systematically and synchronously in order to create water river boun...
11 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 550 | Lượt tải: 0
As a small island located near the approximately centre of The Gulf of Tonkin, the Bach Long Vi island possesses great values on geo-economic and geo-politic position resources. On the geoeconomic resources, the island is a priority site for the country’s sea-island economy development; a central location in the economic space of the Gulf f of To...
9 trang | Chia sẻ: honghp95 | Ngày: 28/11/2020 | Lượt xem: 530 | Lượt tải: 0
Copyright © 2024 Tai-Lieu.com - Hướng dẫn học sinh giải bài tập trong SGK, Thư viện sáng kiến kinh nghiệm hay, Thư viện đề thi