搜索结果: 1-15 共查到“fresh-water”相关记录19条 . 查询时间(0.078 秒)
More than half of world's fresh water supply warming rapidly（图）
More than half of world fresh water warming rapidly
2017/11/23
More than half of the world's fresh water supply is warming rapidly, according to an NSF- and NASA-funded study.Using satellite data and ground measurements collected from 235 lakes on six continents ...
A Fresh Look At Fresh Water:Researchers Create A 50,000-Lake Database（图）
Fresh Look At Fresh Water Researchers 50,000-Lake Database
2017/10/26
Countless numbers of vacationers spent this summer enjoying lakes for swimming, fishing and boating. But are they loving these lakes to death?The water quality of the nation's lakes is threatened not ...
Squeezing Every Drop of Fresh Water from Waste Brine
Squeezing Every Drop Fresh Water Waste Brine
2017/7/21
Engineers at the University of California, Riverside have developed a new way to recover almost 100 percent of the water from highly concentrated salt solutions. The system will alleviate water shorta...
Fat quality of marketable fresh water fish species in the Republic of Serbia
chemical composition cholesterol content fatty acid fresh water fish flesh retail stores
2014/2/24
The chemical and fatty acid composition were evaluated of commercially important fish species (common carp, silver carp, bighead carp, grass carp, Wels catfish, and zander) which were collected from r...
淡水与微咸水入渗特性对比分析（Infiltration Characteristic Contrast Analysis of Fresh Water and Saline Water）
微咸水 淡水 间歇入渗 连续入渗
2010/12/29
为了研究淡水与微咸水连续和间歇入渗特性的差异，采用矿化度1.33g/L的淡水与矿化度3g/L的微咸水，在黏质土壤条件下进行了一维积水连续入渗及间歇入渗试验。研究结果表明，采用微咸水入渗可以改变土壤的结构特性，从而增大土壤的入渗能力；利用一维代数入渗模型对试验资料进行处理，结果表明模型可以比较精确地描述微咸水入渗过程；入渗水为淡水时，间歇入渗减渗，而入渗水为微咸水时，间歇入渗增渗；间歇入渗的循环...
Acute Cold Exposure Triggers Dynamic Metabolic Alteration in Certain Peripheral Tissues of Fresh Water Fishes (Channa punctata)
Peripheral tissues low temperature survival process taki fish and metabolic regulation
2010/11/16
To characterize the sensitivity of environmental low temperature on peripheral tissues of Channa punctatus, species of fishes which are energetic and survive in the critical environment, were exposed ...
Some Population Parameters of Distichodus rostratus (Gunther, 1864) from the Fresh Water Reaches of Lower Nun River, Niger Delta, Nigeria
Age and growth condition factor Distichodus rostratus
2010/9/29
Some population parameters of Distichodus rostratus from the fresh Water reaches of lower Nun
River in the Niger Delta area of Nigeria, was studied for a period of one year (January, 2008-December 20...
APPLICATION OF A NUMERICAL MODEL TO PREDICT FRESH WATER DEPTH IN ISLANDS DUE TO CLIMATE CHANGE：AGATTI ISLAND, INDIA
FRESH WATER DEPTH ISLANDS CLIMATE CHANGE AGATTI ISLAND
2009/10/19
Global warming could raise sea level by several tens of centimeters in the next fifty years, about one meter in the century, and several meters in the next few centuries by expanding ocean water, by m...
A HYDROCHEMICAL AND ISOTOPIC STUDY OF SUBMARINE FRESH WATER ALONG THE COAST IN LEBANON
water discharging FRESH WATER isotopic composition
2009/10/12
The chemical and isotopic composition of water discharging from springs, surface and groundwater in the Litani river basin were studied. The data include field measurements of specific conductance, pH...
Analyses of Genetic Diversities in Chinese Fresh-water Fishes
fresh—water fishes inter-and innaspeeific genetic diversitie
2009/9/23
A 、vealth 0f literature has been published in the studies of Chinese fresh—water fish chromosomes
within recent years．In this paper，we review the inter-and intraspecific genetic diversities found in ...
Temporal Changes in Some Fresh Water Temperature Structures
Temporal Changes Fresh Water Temperature Structures
2009/4/2
Microstructure is examined in 61 temperature-depth profiles which were obtained at one location in a fresh water lake. Over the 12 hr of observation, specific features of the microstructure are contin...
Aspects of Hemisynodontis membranaceus (Greffroy-st Hilare, 1809) Population Dynamics from the Fresh Water Reaches of Lower Nun River,Niger Delta, Nigeria
Hemisynodontis membranaceus age growth mortality
2010/9/30
Age and growth and mortality study of Hemisynodontis membranaceus from the fresh Water reaches
of lower Nun River in the Niger Delta area of Nigeria, was studied for a period of one year(Jan. –Dec. 2...
渔船上“净水器”的应用前景与技术开发(The application outlook to equip fresh water purifiers onboard the Chinese fishing vessels)
渔船 “净水器” 应用前景
2008/6/19
For the long-perioded fishing operation, fresh water is still stored in the water tanks
for the Chinese fishing vessels. In which the water is seriously polluted. At present,
fresh water purifiers...
14种淡水鱼基因组大小变异的研究--A Study of the Genome Size Variations in 14 Species of Chinese Fresh-water Fishes
淡水鱼类 DNA含量 变异
2007/12/5
本文报道14种淡水鱼细胞核DNA含量的测定结果。这14种鱼DNA含量变异较大，从2.20pg到5.0pg不等，其中大多数种类具有较高的DNA含量。此外，我们还结合已有资料，讨论了迄今已研究的58种中国淡水鱼（主要为鲤科鱼）DNA含量的变异特征、意义及影响DNA含量变异的因素。
FRESH WATER INFLUENCE ON NUTRIENT STOICHIOMETRY IN A TROPICAL ESTUARY, SOUTHWEST COAST OF INDIA
nutrient stoichiometry Cochin backwaters Southwest coast of India
2010/3/25
Cochin backwaters, a micro tidal estuary, undergo a characteristic transformation from a riverdominated system during summer monsoon to a tide-dominant system during pre-monsoon season. The present st...