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We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.

The emergence of drug-resistant bacteria and the lack of effective antimicrobial agents have posed a threat to public safety, so a new efficient strategy is needed to deal with the increasing severity of bacteria. Herein, a substitute antibacterial agent with high stability and biocompatibility was synthesized by incorporating lysine hydrochloride and copper sulfate pentahydrate following the liquid-phase synthesis method. The composition and structure of the Cu(ii) complex (Lys–Cu) were characterized by performing ultraviolet-visible spectrophotometry, Fourier-transform infrared spectroscopy, X-ray diffractometry (XRD), thermogravimetric analysis-differential scanning calorimetry, and single-crystal XRD. The crystal structure of Lys–Cu belongs to a monoclinic system, space group P21, with cell parameters of a = 5.14350(10), b = 16.8308(2), c = 11.4915(2) Å, Z = 2, and D = 1.548 g·cm−3. Bacteriostatic tests were carried out on Escherichia coli and Staphylococcus aureus. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of Lys–Cu against S. aureus were 0.3125 and 0.9250 mg·mL−1, respectively. The MIC and MBC values of Lys–Cu against bacterial strain E. coli were 0.4685 and 0.9250 mg·mL−1, respectively.

Folding screen phones have a larger display area compared to the traditional form of full‐screen phones, providing users with more usage scenarios. However, as the number of folding times increases, the functional layer of the display module will creep and wrinkles will appear on the surface of the folded screen, affecting the display effect of the screen. Current academic research has made progress in the mechanical simulation of folded screens, and surface flatness and contour curvature are used as quantitative characterization methods for simulation calculations. This paper proposes a quantitative characterization method of optical wrinkling for simulation results based on the basic theory of machine vision, by projecting a circular light spot at an angle of 45° to the screen onto the surface of the flexible screen, and observing the degree of aberration of the light spot at an angle of 135° to the screen as a failure criterion. The corresponding spot aberration value is calculated based on the coordinates of the grating, the coordinates of the light source and the position of the observation camera after CAE(Computer Aided Engineering) simulation. After comparing the experimental results with the simulation results, it is found that the simulation agrees well with the experiment. Finally, the two stacked structures of PET(polyethylene glycol terephthalate) and CPI(Colorless Polyimide), which are the covering layers of the screen, are taken as examples to illustrate that the present method can provide relevant clues for the structural design of the OLED(Organic Light‐Emitting Diode) screen, the selection of materials, and the mechanical problems in the bending process. [ABSTRACT FROM AUTHOR]