Most experiments show that gas hydrates are often enriched in C 2+ gases relative to the feeding source because of fractionation during hydrate crystallization directly from free and dissolved gases. However, sediments below near base stability zone (BGHSZ) many ocean drilling program (ODP)/International Ocean Discovery Program (IODP) sites relatively hydrocarbon gases, compared with hydrate-oc...

UNLABELLED A dual-diameter nanohole (DNH) photovoltaic system is proposed, where a top (bottom) layer with large (small) nanoholes is used to improve the absorption for the short-wavelength (long-wavelength) solar incidence, leading to a broadband light absorption enhancement. Through three-dimensional finite-element simulation, the core device parameters, including the lattice constant, nanoho...

This study proposes a deep-learning-based model to generate synthetic compressional wave velocity (Vp) from well-logging data with application the Ulleung Basin Gas Hydrate (UBGH) in East Sea, Republic of Korea. Because bottom-simulating reflector (BSR) is key indicator define presence gas hydrate, this generates Vp for identifying BSR by detecting morphology hydrate terms change acoustic veloc...

LP-CVD ZnO has been developed at IMT as front TCO for amorphous silicon p-i-n single-junction and “micromorph” (microcrystalline/amorphous silicon) tandem solar cells. In comparison with SnO2 (Asahi type U), ZnO demonstrates superior light-trapping behaviour. Applying the monolithic series connection by laser-scribing, both for amorphous single-junction and micromorph tandem cells, modules have...

We demonstrate a new type of photonic crystal nanolaser incorporated into a microfluidic chip, which is fabricated by multilayer soft lithography. Experimentally, room-temperature continuous-wave lasing operation was achieved by integrating a photonic crystal nanocavity with a microfluidic unit, in which the flow medium both enhances the rate of heat removal and modulates the refractive index c...

We analyze the “field-field” cross correlation associated with partly coherent scattered waves generated by a wave packet. The configuration consists of a slab in which random medium fluctuations occur; the bottom of the slab is bounded by a deterministic discontinuity (a smooth reflector). Following the dyadic parabolic scaling of wave packets, and scaling the random fluctuations appropriately...

Finding the optimal structure to enhance light trapping in thin film silicon solar cells has attracted much attention in the previous decades. However, because of problems in integrating theory and experiment, there are only few comprehensive contributions that provide guidelines for the optimal design of such structures. In this work, a realistic thin film solar cell with almost conformal laye...

We study diffusive transport of aqueous methane in sea sediments, which is important for formation of methane hydrate and gas deposits and has even been claimed to be principal methane transport mechanism for some geological systems. The isothermal diffusion law (Fick's law), D X = − ∇ J , which is employed in the literature for investigations on methane hydrate, is shown to significantly devia...

The production of B hadrons is among the most abundant fundamental QCD processes measured at LHC. We present for first time predictions this process accurate to next-to-next-to-leading order in perturbation theory by simulating bottom-quark pair accuracy matched parton showers. Our novel results are good agreement with experimental data different types from ATLAS, CMS and LHCb 7 TeV and/or 13 T...