Results 111 to 120 of about 1,538,149 (347)

Long term trend of chemical oxygen demand in Saroma-ko Lagoon, Japan; possible effects of climatic warming [PDF]

open access: yes, 2008
A trend of shortening duration of ice coverage has been reported in many rivers, ponds and lakes around the world due to climatic warming. The shortening will have much influence on organic production due to the greater supply of light intensity and ...
Akihiro Shiomoto
core   +2 more sources

Use of Restricted Nursing and a Bovine Appeasing Substance on the Welfare, Growth Performance, and Response to Vaccination of Beef Calves at Weaning

open access: yesAnimal Research and One Health, EarlyView.
The effects of restricted nursing (RN) and the administration of a bovine appeasing substance (BAS) on days −8 and 0 in relation to weaning were evaluated. Both strategies were effective in improving the growth performance of beef calves. Regarding welfare, BAS ‐especially on day 0‐ was more effective than RN.
Denise E. Mussalafo   +8 more
wiley   +1 more source

Ice phenomena on Lake Czarny Staw pod Rysami

open access: yesLimnological Review, 2016
Due to its inaccessibility (in winter), Lake Czarny Staw pod Rysami (Black Lake below Mount Rysy) has no series of continuous observations concerning ice phenomena.
Choiński Adam
doaj   +1 more source

ISOTOPIC REGIME OF SUBGLACIAL LAKE VOSTOK ON EVIDENCE FROM DEEP ICE CORE STUDIES

open access: yesЛëд и снег, 2015
On the 5th of February 2012 the long-lasting project of deep ice drilling at Russian Antarctic station of Vostok was completed by the penetration to the subglacial lake at the depth of 3769.3 m.
A. A. Ekaykin   +2 more
doaj   +1 more source

Measurement of lake ice thickness with a short-pulse radar system [PDF]

open access: yes
Measurements of lake ice thickness were made during March 1975 at the Straits of Mackinac by using a short-pulse radar system aboard an all-terrain vehicle. These measurements were compared with ice thicknesses determined with an auger.
Cooper, D. W.   +2 more
core   +1 more source

An Object-Based Classification Method to Detect Methane Ebullition Bubbles in Early Winter Lake Ice

open access: yesRemote Sensing, 2019
Thermokarst lakes in the Arctic and Subarctic release carbon from thawing permafrost in the form of methane and carbon dioxide with important implications for regional and global carbon cycles. Lake ice impedes the release of gas during the winter.
P. Lindgren   +3 more
semanticscholar   +1 more source

Investigating the Influence of Variable Freshwater Ice Types on Passive and Active Microwave Observations

open access: yesRemote Sensing, 2017
Dual-polarized airborne passive microwave (PM) brightness temperatures (Tb) at 6.9 GHz H/V, 19 GHz H/V and 37 GHz H/V and spaceborne active microwave (AM) X-band (9.65 GHz VV, VH) backscatter (σ0) are observed coincident to in situ snow and lake-ice ...
Grant E. Gunn   +4 more
doaj   +1 more source

Heat balance of supraglacial lakes in the western Dronning Maud Land [PDF]

open access: yes, 2016
Thermodynamics of a seasonal supraglacial lake were examined based on field data from three summers. At maximum, the lake body consisted of an upper layer with thin ice on top, and a lower layer with slush, hard ice and sediment at the bottom ...
Arvola, Lauri   +2 more
core   +1 more source

Engineering of 2‐ketoacid Decarboxylases for Production of Isobutanol and Other Fusel Alcohols in Saccharomyces cerevisiae

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Isobutanol is a fusel alcohol that can be produced microbially for use as a biofuel or upgraded into sustainable aviation fuel (SAF). A key enzyme in the isobutanol biosynthetic pathway is 2‐ketoacid decarboxylase (KDC), which irreversibly decarboxylates 2‐ketoisovalerate (KIV) to yield isobutyraldehyde.
Joshua J. Dietrich   +6 more
wiley   +1 more source

Using GIS to Quantify Patterns of Glacial Erosion on Northwest Iceland: Implications for Independent Ice Sheets

open access: yes, 2009
Glacial erosion patterns on northwest Iccliind are quantified using a Geographic Information System (GIS) in order to interpret subglacial characteristics of part of northwest Iceland affected by ice sheet glaciation.
Johnson, Jeremiah S.   +1 more
core  

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