Hengzongshu/ArticleAgent huggingface dataset:
Self-activated yellow-emitting BaLuAlxZn4−xO7−(1−x)/2phosphor has been investigated by a combined experimental and theoretical analysis.
Non-oxidative dehydroaromatization of methane (MDA) is a promising catalytic process for direct valorization of natural gas to liquid hydrocarbons. The application of this reaction in practical technology is hindered by a lack of understanding about the mechanism and nature of the active sites in benchmark zeolite-based Mo/ZSM-5 catalysts, which precludes the solution of problems such as rapid catalyst deactivation.

By applying spectroscopy and microscopy, it is shown that the active centers in Mo/ZSM-5 are partially reduced single-atom Mo sites stabilized by the zeolite framework. By combining a pulse reaction technique with isotope labeling of methane, MDA is shown to be governed by a hydrocarbon pool mechanism in which benzene is derived from secondary reactions of confined polyaromatic carbon species with the initial products of methane activation.

MDA is shown to be governed by a hydrocarbon pool mechanism in which benzene is derived from secondary reactions of confined polyaromatic carbon species with the initial products of methane activation.
Here, we show that several aging related genes may serve as the genetic risk factors for cervical, esophagus and colorectal cancers. We examined the genes involved in the processes of xenobiotics detoxification (GSTM1 and GSTT1), DNA repair (XRCC1, XRCC3, hMLH1), cell cycle regulation and apoptosis (CCND1, TP53, DCC). The study results will lead to development of screening for detection of individuals susceptible to esophageal, cervical and colorectal cancers. Introduction of the screening programs will allow the early and effective preventive measures that will reduce cancer incidence and mortality in Kazakhstan.
A stress-strain state and a time duration up to fracture are calculated with allowance for two-stage behavior of a rotating disk under creep conditions.

The duration of the stages is investigated depending on the choice of the version of the creep kinetic theory and the geometric dimensions of the disk. The first stage is the accumulation of damage and the beginning of fracture in some area of the body, where the accumulated damage reaches a critical value. The second stage is the spread of the fracture front and the complete destruction of the body. A calculation method has been developed which reduces the solution of the unsteady-state creep problem to the solution of an analogous steady-state problem.
Homozygous siblings with different treatment histories represent an excellent model to study both the phenotypic manifestation of mutations and the efficacy of therapy. We compared phenylketonuria (PKU) manifestations in two different gender siblings who were homozygous carriers of a rare phenylalanine hydroxylase (
This work compares the metabolic profiles of plasma and the cerebrospinal fluid (CSF) of the patients with high-grade (III and IV) gliomas and the conditionally healthy controls

using the wide-range targeted screening of low molecular metabolites by HPLC-MS/MS. The obtained data were analyzed using robust linear regression with Huber’s M-estimates, and a number of metabolites with correlated content in plasma and CSF was identified

The statistical analysis shows a significant correlation of metabolite content in plasma and CSF samples for the majority of metabolites. Several metabolites were shown to have high correlation in the control samples, but not in the glioma patients. This can be due to the specific metabolic processes in the glioma patients or to the damaged integrity of blood-brain barrier. The results of our study may be useful for the understanding of molecular mechanisms underlying the development of gliomas, as well as for the search of potential biomarkers for the minimally invasive diagnostic procedures of gliomas.
Mn-containing oxides exhibit high catalytic activity in the reactions of total oxidation of hydrocarbons and CO.It was found that increase in the calcination temperature to 950-1000C lead to the growth of catalytic activity for MnOx-Al2O3 catalysts.

In situ XRD studies of MnOx-Al2O3 catalysts shown that active component of the catalysts was formed via decomposition of the high-temperature precursor (cubic spinel Mn3-xAlxO4) followed by the appearance of aggregates consisting of imperfect Mn3O4+δ oxide and amorphous Mn-Al-O phase.In situ XRD analysis indicates that during heating and cooling in the air both spinels decompose at the temperatures range of 400-800oC.

The decomposition was accompanied by the formation of weakly bound oxygen which appears to be active in oxidation reactions.The structure of the active component was directly related to the composition of the high-temperature precursor -the higher the concentration of manganese cations are in the Mn3-xAlxO4 cubic spinel, the more Mn3O4 and weakly bound oxygen appear in the decomposition product [1].When Al is replaced by Ga, a significant decrease in catalytic activity is observed.In situ XRD study shown that difference in catalytic activity in CO oxidation in MnOx-Al2O3 and MnOx-Ga2O3 catalysts is due to different mechanism of precursor decomposition.
For the first time, a comprehensive study of downward flame spread over glass-fiber-reinforced epoxy resin (GFRER) slabs in oxidizer flow has been carried out experimentally and numerically.

Microthermocouples were used to measure the temperature profiles on the solid fuel’s surface and in the flame, and a video camera was used to measure the rate of flame spread (ROS). For the first time, a numerical model of flame spread over reinforced material with thermal conductivity anisotropy was developed on the basis of a coupled ‘gas–solid’ heat and mass transfer model, using modifications of the OpenFOAM open-source code.

The ROS was found to be linearly dependent on the oxygen concentration, to be inversely proportional to the slab thickness and not to depend on the direction of the flame spread over the slab. The absence of the influence of the forced oxidizing flow velocity and the weak influence of the GFRER pyrolysis kinetics on the ROS were observed. The sensitivity analysis of the model showed that the thermal conductivity in the normal direction to the GFRER surface had a much greater effect on the ROS than the thermal conductivity along the direction of flame propagation. The numerical results show good agreement with the experimental data on the dependences of the ROS on oxygen concentration, slab thickness and the N2/O2 mixture flow velocity, as well as temperature distributions on the fuel surface, the maximum flame temperatures and the flame zone length.
Conducting plasma processes under high or low pressure is an efficient way to affect the heat, mass and momentum exchange in a two-phase flow and this technique is widely used in such well-developed technologies as low-pressure plasma spraying (LPPS) and high pressure plasma-chemical processes. In addition operating pressure is a key parameter in novel plasma process for modification of hollow powders properties.

Plasma processing of porous ceramic powders is an effective method of producing hollow spheres (HOSP) with predefined properties. Regardless the method hollow powders were produced their geometric and structural properties can be adjusted by re-melting in plasma of certain pressure: low pressure processing will expand hollow spheres and high pressure – contract it. Regulating the outer diameter of hollow sphere allows adjusting its shell thickness, apparent density, gas pressure in the cavity etc.

Preliminary experiments with zirconia hollow powders demonstrated good agreement with theoretical estimations of HOSP properties. The same technique can be used for adjusting properties of ceramic hollow powders produced by different methods, including cost effective fly-ash particles (cenospheres).
Combustion of liquid hydrocarbon fuel dispersed by superheated steam jet was experimentally studied. Characteristics of the combustion process (heat release, emission of toxic products, flame temperature) were investigated in a laboratory direct-flow atmospheric burner (capacity up to 20 kW) at different operating systems with waste transmission automotive oil as fuel example. Regimes were found which provoke stable combustion of non-quality liquid hydrocarbons. It was shown dependences of heat, flue gas parameters on superheated steam flow rates, fuel flow rates, flame temperatures.
Diffraction of a surface wave on a rectangular wedge with impedance facets is studied using the Sommerfeld-Malyuzhinets technique. An analog of Landau's bypass rule in the theory of plasma waves is introduced for the selection of a correct branch of the Sommerfeld integral

the exact solution is given in terms of the imaginary error function. The formula derived is valid both in the ``near wave'' and ``far wave'' zones (defined here to be located within the wave zone, in the meaning of the theory of radiation)

It is shown that a diffracted surface wave is completely scattered into freely propagating electromagnetic waves and neither reflected nor transmitted surface waves are generated in the case of bare metals, which have a positive real part of the surface impedance. The scattered waves propagate predominantly at a grazing angle along the direction of propagation of the incident surface wave and mainly in the upper hemisphere regarding the wedge facet. The profile of radiated intensity is nonmonotonic and does not resemble the surface-wave profile, which exponentially evanesces with the distance from the wedge facet. Comparison with experiments carried out in the terahertz spectral range at the Novosibirsk Free-Electron Laser facility has shown a good agreement of the theory and the experiments
In this work the effects of pressure and temperature on the nonlocalized two-electron multicentric covalent bonds ('pancake bonding') in closely bound radical dimers were probed by single-crystal X-ray diffraction on a 4-cyano-N-methylpyridinium salt of 5,6-dichloro-2,3dicyanosemiquinone (DDQ•4CN) and I-methylpyridinium salt of tetrabromosemiquinone radical anion (Br4Q•NMePyr) as the sample compounds.The DDQ•4CN crystal structure can be described as closely bound stacked dimers of radical anions with interplanar separation <3.2 Å, which is known as non-localized two electron covalent bonding.At ambient conditions the stacks of pancake bonded radical anions are formed by two types of distances: short intra-dimer and long inter-dimer contacts.On cooling, the anisotropic structural compression was accompanied by continuous changes in molecular stacking; the discontinuities in the changes in volume and b and c cell parameters suggest that a phase transformation occurs between 210 and 240 K.At a pressure of 2.55 GPa, both distances between radical dimers shortened to 2.9 Å, and become roughly equal, which corresponds to distances observed in extended-bonded polymers.Increasing pressure further to 6 GPa reduced the interplanar separation of the radicals to 2.75 Å, which may indicate that the covalent component of the interaction significantly increased [1].The linear strain analysis shows that the most deformations of pressure and temperature occurs in the direction of pancake bonding.The Br4Q•NMePyr crystal structure is built of infinite stacks of equidistant radical anions with no Peierls distortion [2].On cooling the structure is compressed monotonically, the distance between radicals changes non-linearly, compress to <3.3 Å, but the space group remains the same.Upon pressure, the structure is compressed monotonically with no phase transformations in all the pressure range (0 -6.0 GPa), the lowest interplanar distance is <2.9 GPa, that may indicate the increasing of the covalent component in pancake bond and a significant decrease of the electron jumping barrier which may influence semiconductivity.
We report a search for the decays $B^0\to K^{*0} \overline{K}{}^{*0}$ and $B^0\to K^{*0} K^{*0}$. We also measure other charmless decay modes with $K^+\pi^-K^-\pi^+$ and $K^{+}\pi^{-}K^{+}\pi^{-}$ final states.

The results are obtained from a data sample containing $657 \times 10^6$ $B \overline B$ pairs collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.

We set upper limits on the branching fractions for $B^0\to K^{*0} \kstarbar$ and $B^0\to K^{*0} K^{*0}$ of $0.81 \times 10^{-6}$ and $0.20\times 10^{-6}$, respectively, at the 90% confidence level.
The opening of the Xpress beamline [1] in 2016 has provided the high-pressure diffraction user community of the Elettra synchrotron facility a dedicated experimental set up at their disposal.This new beamline is part of a scientific partnership between India and Italy under a project administered through the Indian Institute of Sciences (IISc) Bangalore, for the development of a macromolecular and a high-pressure x-ray diffraction facilities, respectively XRD2 [2] and Xpress.A multipole superconducting wiggler (SCW) is the source of these two beamlines.A liquid nitrogen cooled silicon single crystal (cut along the (111) direction) hosted in the splitter chamber in the Front-End section intercepts the beam from the source (SCW) and directs it to the focusing mirror of the Xpress at a fixed energy of 25 keV.At this energy, the SCW provides a factor of 14 higher photon flux compared to the permanent magnet wiggler of XRD1, the existing diffraction beamline.The beam is focused using a toroidal mirror of 1.4 m long and 2.9 mrad grazing angle with a Pt coating to achieve 80% reflectivity at 25 keV.The focused beam from the mirror is further optimized by collimators (presently 80 micron diameter) to have intense and well defined monochromatic beam required for the high-pressure x-ray diffraction experiments.On-line pressure monitoring is achieved through a ruby fluorescence microscope connected side-by-side to the final beam collimator stage.The present experimental stage is equipped to host room temperature -high-pressure powder diffraction measurements using various kinds of Diamond Anvil Cells (DAC) in the pressure range 0-50 GPa.An image plate MAR345, with a controllable linear movement along the beam direction at two fixed vertical positions, is available for recording the diffraction pattern from both powder and single crystal samples.A Gas loading system is under commissioning, while variable temperature (300 -100 K) capillary powder diffraction stage and limited range low-temperature high-pressure measurements using a specialized DAC and liquid nitrogen cryocooler system are also planned to be added in the near future.
Investigation of subcooled nucleate boiling in minichannels was conducted with high speed recording optical system also equiped with high spatial resolution optics. Obtained data on the bubble dynamics is in good agreement with well-known correlations from the literature. The final stage of bubble dynamics is in good agreement with the Labuntsov correlation for spherical vapor bubble growth on a heated wall.
classical main and fractional Talbot planes

study diffraction of Bessel vortex beams with topological charges of ±1 and ±2 and a wavelength of 130 µm on two-dimensional amplitude periodic gratings, simulations and experiments at the Novosibirsk Free Electron Laser facility

appear periodic patterns in the planes corresponding to the classical main and fractional Talbot planes, but instead of self-images of the holes, there are observed periodic lattices of annular vortex microbeams with topological charges corresponding to the charge of the beam illuminating the grating, ring diameters are the same for beams with different topological charges, but they are proportional to the grating period and inversely proportional to the diameter of the beam illuminating the grating
Self-Organizing Maps 124GeomRandom (Nechaeva, 2009) packages and tested on a number of physical domains.The quality of resulting meshes is acceptable according to the commonly used quality criteria.In order to support this alternative approach to mesh generation, a Theorem of Correspondence is proved, that states that goals of traditional PDE approach to construction of adaptive meshes from the considered class are equivalent to the goals of learning for Self Organizing Maps.The obtained results showed that the neural network approach provides us a highly parallelizable technique (Nechaeva, 2005) for automatic construction of qualitative adaptive meshes and possesses the following properties: (1) due to the self organizing principles the algorithm transforms the mesh automatically, starting with arbitrary initial nodes positions, and does not require to fix the boundary nodes beforehand;(2) stochastic nature of the algorithm enables us to illuminate any limitations on the mesh density function; (3) internal parallelism of the method allows us to parallelize the mesh construction process, taking into account the requirements on the parallel implementation of a problem to be solved on the mesh; (4) the method uses the same algorithms for different dimensionalities of a physical domain that proves the universality of the proposed method. How to referenceIn order to correctly reference this scholarly work, feel free
Apurinic/apyrimidinic (AP) sites, a prominent type of DNA damage, are repaired through the base excision repair mechanism in both prokaryotes and eukaryotes and may interfere with many other cellular processes. A full repertoire of AP site-binding proteins in cells is presently unknown, preventing reliable assessment of harm inflicted by these ubiquitous lesions and of their involvement in the flux of DNA metabolism.

We present a proteomics-based strategy for assembling at least a partial catalogue of proteins capable of binding AP sites in DNA. The general scheme relies on the sensitivity of many AP site-bound protein species to NaBH(4) cross-linking. An affinity-tagged substrate is used to facilitate isolation of the cross-linked species, which are then separated and analyzed by mass spectrometry methods.

We report identification of seven proteins from Escherichia coli (AroF, DnaK, MutM, PolA, TnaA, TufA, and UvrA) and two proteins from bakers' yeast (ARC1 and Ygl245wp) reactive for AP sites in this system.
In this paper we will present the results of Artin--Markov on braid groups

by using the Groebner--Shirshov basis

As a consequence we can reobtain the normal form of Artin--Markov--Ivanovsky as an easy corollary
Depth estimation has made great progress in the last few years due to its applications in robotics science and computer vision. Various methods have been implemented and enhanced to estimate the depth without flickers and missing holes. Despite this progress, it is still one of the main challenges for researchers, especially for the video applications which have more complexity of the neural network which affects the run time.

Moreover to use such input like monocular video for depth estimation is considered an attractive idea, particularly for hand-held devices such as mobile phones, they are very popular for capturing pictures and videos, in addition to having a limited amount of RAM. Here in this work, we focus on enhancing the existing consistent depth estimation for monocular videos approach to be with less usage of RAM and with using less number of parameters without having a significant reduction in the quality of the depth estimation.
The Mott scattering of high-energetic twisted electrons by atoms is investigated within the framework of the first Born approximation and Dirac's relativistic equation.

Special emphasis is placed on the angular distribution and longitudinal polarization of the scattered electrons. In order to evaluate these angular and polarization properties we consider two experimental setups in which the twisted electron beam collides with either a single well-localized atom or macroscopic atomic target. Detailed relativistic calculations have been performed for both setups and for the electrons with kinetic energy from 10 keV to 1000 keV.

The results of these calculations indicate that the emission pattern and polarization of outgoing electrons differ significantly from the scattering of plane-wave electrons and can be very sensitive to the parameters of the incident twisted beam. In particular, it is shown that the angular- and polarization-sensitive Mott measurements may reveal valuable information about, both the transverse and longitudinal components of the linear momentum and the projection of the total angular momentum of twisted electron states. Thus, the Mott scattering emerges as a diagnostic tool for the relativistic vortex beams.
The article deals with the content and meaning of the Chinoiserie art style, which appeared in Europe in the 17th century and is based on traditional Chinese culture. It has distinct Chinese features and reflects a lot of Chinese elements. Chinoiserie still has a great influence on world culture in various spheres of art. The main focus is on the formation and spread of chinoiserie in Russia, which was related to the beginning of the Enlightenment era, the development of Chinese-Russian trade, and the published works on sinology that appeared at that time. In addition, the geographical proximity of the two countries is also considered a major factor in the spread of chinoiserie in Russia. There are several stages in the existence and evolution of chinoiserie in Russia: the era of Emperor Peter the Great (18th century), when elements of Chinese architecture, sculpture, art, clothing, decor and ornaments, household items and utensils appeared. At the same time there also appeared imitations of Russian masters of Chinese decorative and applied arts. During this period of time, ordinary people are also introduced to Chinese items and products, such as cotton cloth, silk, porcelain, tea, rhubarb, etc., which are now an integral part of life in Russia. The next era of introducing Chinese culture is the 19th century. It is connected with the spread of international relations and political ties. But chinoiserie evolution at this time was no longer as rapid and multifaceted as it had been a century earlier. The author concludes that chinoiserie reached its peak in Russia in the XVIII century, gradually began to decline in the XIX century, but in the XX century and nowadays it is becoming popular again.
Initial stage of downward flow of gas-sheared liquid film in a vertical rectangular duct was studied using brightness-based laser-induced fluorescence technique.

Measurements were resolved along both longitudinal and transverse coordinates and time. The initial high-frequency waves which are formed at the inlet were found to be two-dimensional.

These waves are promptly broken into localised horseshoe-shaped waves which merge downstream to form large-scale quasi-2D disturbance waves. Peculiarities of three-dimensional evolution of waves of different types were studied in a wide range of flow parameters.
We develop a comprehensive theory for describing the experimental beam profiles from multimode fiber Raman lasers. We take into account the presence of random linear mode coupling, Kerr beam self-cleaning and intra-cavity spatial filtering. All of these factors play a decisive role in shaping the Stokes beam, which has a predominant fundamental mode content. Although the highly multimode pump beam is strongly depleted, it remains almost insensitive to the different physical effects. As a result, the intensity of the output Stokes beam is an order of magnitude higher than the pump intensity at its maximum, in quantitative agreement with the experimental results and in contrast with the simplified balance model.
Topological insulators (TIs) represent a new quantum state of matter which is characterized by edge or surface states and an insulating band gap in the bulk.

We have studied experimentally the transport properties of the critical width HgTe QWs near the Dirac point, where the conductance is determined by a percolation along the zero-gap lines.

The experimental results confirm the presence of percolating conducting channels of a finite width. Our work establishes the critical width HgTe QW as a promising platform for the study of the interplay between topology and localization.