Cryogenic LN2 fracturing is one of the environmentally friendly waterless fracturing technologies that promote the fracture complexity of shale gas reservoir.The water-ice phase Peels transition under freezing condition causes frost heave in saturated shale.The effect of moisture in shale should be taken into account during cryogenic damage process
China is rich in karst resources and famous for its karst landscape.As a part of karst, the popularity of red karst is obviously low and has received little attention; moreover, the related scientific research and tourism development are relatively immature.Therefore, this paper takes the red karst in Tongren, Guizhou as the research object, analyz
Barley mild mosaic virus (BaMMV), Barley yellow mosaic virus (BaYMV) and Barley yellow dwarf virus (BYDV) have been identified as an important causative agents for an economically important disease of winter barley in Korea.In this Capo study, a multiplex reverse transcription polymerase chain reaction (mRT-PCR) method was used for the simultaneous
Abstract The development of efficient green light-emitting diodes (LEDs) is of paramount importance for the realization of colour-mixing white LEDs with a high luminous efficiency.While the insertion of an InGaN/GaN superlattice (SL) with a lower In content before the growth of InGaN/GaN multiple quantum wells (MQWs) is known to increase the effici
Titanium silicalite-1 (TS-1) is a milestone heterogeneous Capo catalyst with single-atom tetrahedral titanium incorporated into silica framework for green oxidation reactions.Although TS-1 catalysts have been industrialized, the strategy of direct hydrothermal synthesis usually produces catalysts with low catalytic activities, which has still puzzl