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Dataset for publication "Magma Ocean Depth Controls Fe Isotope Fractionation Between Mantle and Core." Including experimental conditions, major element composition and ferric iron content of the initial glasses, Mossbaur results, and NRIXS results generated in this study.

Low-permeability low-pressure fractured reservoirs in Ordos Basin have low water flooding recovery factors, while CO2 core flooding experiments are limited, the visualization of CO2 flooding physical simulation experiment still being in the blank state, CO2 flooding visualised experiments have been conduct by using specialized ultra-low permeability sandstone microcosmic models to observe flow characteristics of CO2 flooding. The experiment results indicate that: ① in the process of CO2 flooding under the supercritical pressure condition, gas–oil interface disappears in the front end, rear-end CO2 is in supercritical state, which enable CO2 to enter into smaller throats and to displace oil thoroughly; ② direct CO2 flooding has better displacement efficiency which is 10% higher than that of CO2 flooding after water flooding; ③ CO2 flooding after water flooding still can improve oil displacement about 10%; ④ CO2 flooding can improve both microscopic displacement efficiencies and macroscopic displacement efficiencies, and formation microscopic pore structure and heterogeneity are important factors which affect the CO2 flooding efficiencies.

BaFe$_2$S$_3$ is a quasi one-dimensional Mott insulator that orders antiferromagnetically below 117(5)\,K. The application of pressure induces a transition to a metallic state, and superconductivity emerges. The evolution of the magnetic behavior on increasing pressure has up to now been either studied indirectly by means of transport measurements, or by using local magnetic probes only in the low pressure region. Here, we investigate the magnetic properties of BaFe$_2$S$_3$ up to 9.9\,GPa by means of synchrotron $^{57}$Fe M��ssbauer spectroscopy experiments, providing the first local magnetic phase diagram. The magnetic ordering temperature increases up to 185(5) K at 7.5\,GPa, and is fully suppressed at 9.9\,GPa. The low-temperature magnetic hyperfine field is continuously reduced from 12.9 to 10.3\,T between 1.4 and 9.1\,GPa, followed by a sudden drop to zero at 9.9\,GPa indicating a first-order phase transition. The pressure dependence of the magnetic order in BaFe$_2$S$_3$ can be qualitatively explained by a combination of a bandwidth-controlled insulator-metal transition as well as a pressure enhanced exchange interaction between Fe-atoms and Fe 3\textit{d}-S 3\textit{p} hybridization., 4 pages, 4 figures

Online reconstruction of a time-variant quantum state from the encoding/decoding results of quantum communication is addressed by developing a method of evolution reconstruction from a single measurement record with random time intervals. A time-variant two-dimensional state is reconstructed on the basis of recovering its expectation value functions of three nonorthogonal projectors from a random single measurement record, which is composed from the discarded qubits of the six-state protocol. The simulated results prove that our method is robust to typical metro quantum channels. Our work extends the Fourier-based method of evolution reconstruction from the version for a regular single measurement record with equal time intervals to a unified one, which can be applied to arbitrary single measurement records. The proposed protocol of evolution reconstruction runs concurrently with the one of quantum communication, which can facilitate the online quantum tomography.

It is known theoretically that the long wavelength infrared has better performance when transmitting in atmospheric turbulence. In order to evaluate the influence of the atmospheric turbulence quantificationally, the characteristics of different infrareds transmission in atmospheric turbulence are simulated and studied. A series of time relevant phase screens of atmospheric turbulence are simulated based on Fourier transform method proposed by McGlamery. Wind speed and direction are introduced in the meantime. Wavefront distortion, image spot dancing and spreading, receive loss of different wavelengths (0.85μm, 3.6μm, 10.6μm) are simulated respectively and compared to each other. The results show that the performances of long wavelength infrared (10.6μm) are the best, mid wavelength infrared (3.6μm) takes the second place and short wavelength infrared (0.85μm) is the worst.

The birefringence of fiber quantum channel is compensated for without a reference optical beam always in an interrupt way. We propose and demonstrate a scheme of continuous active polarization compensation based on the feedback of the quantum bit error rate. Two experiments with and without compensation are performed in lab and the records of sifted key rate and quantum bit error rate prove that the scheme is effective.

A novel low-power and cost-effective thresholder realized by a distributed-feedback (DFB) semiconductor laser under optical pulses injection is proposed and experimentally demonstrated.

Summary According to the data such as outcrops, cores, well logging with imaging, and thin sections, the natural fractures are developed in ultra-low permeability reservoirs. The fracture types are with tectonic shear fractures as the dominated which appear in groups and en echelon arrangement. Natural fractures are most developed in sandstone and siltstone, but rarely developed in mudstone. The tectonic fractures show themself in four groups of the NE, NW, near EW and near SN orientations. Influenced by the heterogeneity of rock mechanics and the current stress field, fractures in NE-orientation are with wide opening and high permeability. Therefore the NE-orientation is the main flow direction of fluid in this area. On the basis of the traditional fracture description methods, a geological model of reservoirs considering the natural fractures is established with the help of modern fine reservoir description and fracture modeling techniques. The planar distribution laws of effective natural fractures that tally with production performance are determined by application of a numerical reservoir simulation inversion technique. A model considering natural fractures and non-Darcy flow is creatively established on the above mentioned basis. Quantitative evaluation of natural fracture and matrix's contribution to the individual well production rate has been conducted by using this model and the numerical reservoir simulation technique. The contribution rate of natural fractures obtained from the two methods to the average individual well production is 30%–40%. Research results show that the understanding of influences of natural fractures on development results of the ultra-low permeability reservoirs is deepened. Quantitive description of effective natural fractures and their assessment method of the contribution rate to the productivity have been preliminarily formed at the same time, which can be used for reference in the development of the same kind of reservoirs.

Double-crystal x-ray diffraction has been used to measure the rocking curve of Ta/Al multilayers. The diffraction profiles of the multilayers are different. Besides the normal profile, two kinds of distorted profiles have been found. The simulations show that the deformed profiles of the peaks are caused by the imperfect periodicity (e.g. systematic period deviation and coexistence of two slightly different periods) in the multilayers.

The dislocations in lithium tetraborate crystal have been investigated by means of synchrotron radiation white beam topography in BSRL (Beijing Synchrotron Radiation Laboratory). The Burgers' vectors of these dislocations are determined by their vanishing conditions. Both screw and edge dislocations exist in the specimen.

The formula of harmonic diffraction from a perfect crystal is worked out based on the concept of dynamical diffraction and the spectrum of synchrotron radiation. As an applica-tion, the harmonic diffraction from several commonly used planes of Si crystal is calculated, which reveals that there are more harmonics in the chosen (333) diffraction than the other planes. The data are merely true for the Topography Station at Beijing Synchrotron Radia-tion Lab. (BSRL), Beijing Electron-Positron Collider (BEPC).