It's July and a cargo ship, laden with some 70,000 tons of coal, is slowly wending its way from Russia to China across the top of the world. This ship is functional, not beautiful; it's longer than two football fields and at least 30 yards wide. As it enters the Kara Sea, north...
Considering that margarine is in the solid phase at room temperature, requiring heat for melting, the microextraction process was assisted by an ultrasonic bath to ensure the melting point of the samples and to increase the extraction efficiency of the analytes by UA-DLLME. After the extraction ...
A new study quantifies the effect of glacier retreat due to global warming on hydropower production. This detailed analysis of all Swiss water resources shows that only a small percentage is provided by glacier meltwater. Consequently, the reduction of these waters predicted for the end of the ...
known asmass balance, to assess their long-term health. Snowfall increases the mass of an ice sheet, while ice melting or breaking off causes it to lose mass, and the overall balance between
The use of heater DH100 for complete removal of CO2 after the first equivalence point leads to very high precision results. Depending on instrument type, manual operation and method, changes can be made using the given method as a reference. Reaction: 1) 1st EQP: H2SO4 + Na2C03 → NaHCO...
In the winter of 2015/16, something happened that had never before been seen on this scale: at the end of December, temperatures rose above zero degrees Celsius for several days in parts of the Arctic. Temperatures of up to eight degrees were registered
Biochemical fulvic (BFA) was degraded by hydrogen peroxide (H2O2) before it compounded with calcium salts to be the snow-melting agent. The effect of H2O2 concentration, temperature and pH on the freezing point of BFA compound was studie... Y Han,P Gong,H Liu,... - 《Ciesc Journal》 被...
In the SLM process, the maximum temperature in the center of the molten pool can reach 2200°C, which is much higher than the melting point of 892°C of the alloy system (Zr55Cu30Ni5Al10). Note that the critical cooling rate required to form the amorphous phase in the Zr55Cu30Ni5...
A team of researchers in the U.S. has built a model that appears to explain the Karakoram anomaly—where unlike other parts of the world, its mountainous glaciers are not melting. In their paper published in the journal Nature Geoscience, the team explai
A solution of H2O + 4.5 mol/L KOH + 2.5 mol/L H2O2 with a soaking time of 80 s was used to etch the samples for LOM examination. SEM analysis was operated in backscattered electron mode (BSE). Thin-foil specimens were prepared for transmission electron microscopy (TEM) from 3-mm ...