Current Issue http://journal.ucas.ac.cn EN-US http://journal.ucas.ac.cn/EN/2095-6134/current.shtml http://journal.ucas.ac.cn 2095-6134 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.059 28 Pa·s, the tangential compressive stress in lithosphere accumulates to several hundreds of MPa in the present day, while the tensile stress in deep mantle reaches up to 100 MPa. Consequently, part of the shallow moonquake events can be explained by thermal stress. However, the focal mechanism of deep moonquakes is still unclear. We speculate that the tensile thermal stress in deep mantle helps to develop pore structures, and the melting layer provides pore fluid with high pressure, which reduces the fracture strength of mantle medium.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.061 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2021.0073 L^p(Rⁿ)→L^p(Rⁿ)-norm of the truncated Hardy-Littlewood maximal operator M^b_a with two truncation parameters a and b. We first, respectively, present the left semi-continuity and right semicontinuity of ‖M^b_a‖_{L^p(Rⁿ)→L^p(Rⁿ)} with respect to θ=b/a, and then the continuity of ‖M^b_a‖_{L^p(Rⁿ)→L^p(Rⁿ)} is extended to infinity.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2021.0042 -Δ⁺⁺ reaction from the LEPS collaboration are analyzed within a tree-level effective lagrangian approach. In addition to the t-channel π and ρ exchanges, the u-channel Δ exchange, the s-channel N exchange, and the interaction current that is required by the gauge invariance, the s-channel nucleon resonance exchanges are further taken into account to reproduce the data of LEPS. Numerical results show that, the data on Σ can not be well reproduced when no contributions from the s-channel resonance exchanges are introduced. Further analyses show that, by including the contribution from the resonance N(1860)5/2⁺, both the data on the differential cross sections and beam asymmetry Σ can be well reproduced.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.049 δ of the DAIL/E-51 cast body is 0.56, and the glass transition temperature θ_g is 83 ℃, the corresponding storage modulus E is 290 MPa, and the crosslinking density is 30 149 mol·m^-3. This study provides an important experimental basis for the use of high mechanical properties of medium temperature epoxy resin curing agent.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.045 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.041 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.046 M_S7.4 earthquake in Qinghai on May 22, 2021 is the only strong earthquake that occurred in Bayan Har block in recent years. The coseismic deformation and stress adjustment of the Maduo earthquake have been highly concerned by many scholars. In this paper, a three-dimensional parallel elastic finite element program for coseismic deformation simulation of large earthquakes is developed using split node technique. The correctness and effectiveness of the program were verified by comparing with the analytical solutions of the elastic seismic dislocation models. We calculated the coseismic deformation of the Maduo M_S7.4 earthquake and the coseismic Coulomb stress changes on the major faults in the research area. The results show that the surface coseismic deformation is consistent with those by different geodetic observation data and inversion results of some finite fault models. It also shows the earthquake is mainly a sinistral strike-slip fault with some normal fault components. Most aftershocks (magnitude>1.0 and depth of 9-11 km) except those besides the mainshock fault located in the regions of positive Coulomb stress changes at the depth of 10 km. The distribution of the Coulomb stress changes on the different fault zones is not uniform. The Coulomb stress changes on the southern end of Elashan Fault zone, the eastern end of Kunzhong Fault zone, most segments except some central-western parts of East Kunlun Fault zone, the northwestern segment of Dari Fault zone and the northwest and southeast segments and regions near the mainshock of Maduo-Gande Fault zone increase obviously, which requires more attention.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.048 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.053 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.021 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.019 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.028 http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.054 2. The original BCH code has a code length of 127 bits and an error correction capability of 27 bits, which achieves the practical requirements of PUF applications.]]> http://journal.ucas.ac.cn/EN/10.7523/j.ucas.2022.057