Background:Aframomum danielli is used in ethno-medicine for the treatment of several ailments and as a traditional food spice. Methods: The hydro-distilled leaf, stem, seed, rhizome and pod volatile oils of A. danielli were subjected to gas chromatography-mass spectrometry (GC-MS) analysis. Free radical scavenging capacity of the volatile oils was determined using 2,2-diphenyl-1-picrylhydrazyl ...

With the strategic goal of “carbon peaking and carbon neutral” in China, new requirements are also put forward for thermal recovery heavy oil. In view problems excessive greenhouse gas emission, low steam utilization rate, poor economic efficiency, limited reservoir application stimulation replacement technology emerging technologies medium- low-temperature fluid, solvent-assisted high-temperat...

Khus-Khus (Vetiveria zizanoides Nash.) plants slips of 12.5-15 cms. length, were raised in contoled glass house conditions in different 0 –0. 5 and 1.0 Zn mg/l applications. Total monoterpene oil(s) maximum (0.21 %) was obtained at 0.250 Zn mg/l application at 4-5 inner one circumferential position of roots. At middle 4 th. position of leaf, net photosynthetic rate, and contents of chlorophyll ...

The Athabasca oil sands deposit is the largest reservoir of crude bitumen in the world. Recently, the soaring demand for oil and the availability of modern bitumen extraction technology have heightened exploitation of this reservoir and the potential unintended consequences of pollution in the Athabasca River. The main objective of the present study was to evaluate the potential impacts of oil ...

The objective of this paper is to study the relationship between change oil price and profitability Chinese mining enterprises. This collects relevant data China’s exploitation industry listed companies from 2011 2020, makes an empirical by using standard value weight method regression analysis method. conclusions are as follows: (1) average annual decline international 6.71%, which significant...

The Caspian Sea is the world’s largest inland sea. Physiographically it is unique. It is the most productive body of water in the world1 and the only one that preserves the geno-fund of the sturgeon, the source of almost all the black caviar produced. About 10 million people live around the Caspian Sea and the occupations of many of them are connected with the sea, and first of all with fishing...

caspian sea is the largest enclosed body of water on the earth. since the collapse of soviet union in 1991 and discovering large oil and gas fields, some issues such as political, economic and environmental events, made the caspian sea important. the ecology of the sea are being endangered due to several issues such as petroleum extraction, river and sea pollutions, water level rise, biological...

With the rapid development of society and economy, higher requirements are put forward for oil gas exploitation. Therefore, effective measures to improve effect should be analyzed with well dynamic analysis as entry point. This paper first introduces definition analysis, then exploitation effect, injection finally explores through study each production link water Wells, analyzes determines actu...