The paper concerns the issue of ELF （English as a lingua franca） in the European and Asian context. The authors start from a brief conceptual perspective to shed light on salient aspects related to ELF. Then, this p...The paper concerns the issue of ELF （English as a lingua franca） in the European and Asian context. The authors start from a brief conceptual perspective to shed light on salient aspects related to ELF. Then, this paper discusses the study investigating the interactions among NNS （non-native speakers） of English in the naturalistic settings, namely in Zhangjiajie （China）, Masouri （Kalymnos/Greece）, and Unterwasser （Switzerland）. The main objective of the research based on the qualitative methodology was to analyze the ELF interactions from the linguistic point of view focusing on lexicogrammar and pragmatic features. The secondary objective was to establish whether the identified ELF features contributed to communication intelligibility. The obtained results indicated a few significant similarities with the Seidlhofer＇s list of the ELT characteristics. Furthermore, it was established in the study that the ELF features did not interfere with effective communication between interlocutors展开更多
Neutron-antineutron(n−n)oscillations in the deuteron are considered.Specifically,the deuteron lifetime is calculated in terms of the free-space n−n oscillation time τn−n based on NN and NN interactions derived within...Neutron-antineutron(n−n)oscillations in the deuteron are considered.Specifically,the deuteron lifetime is calculated in terms of the free-space n−n oscillation time τn−n based on NN and NN interactions derived within chiral effective field theory(EFT).This results in(2.6±0.1)×10^22τ2^n−n s,which is close to the value obtained by Dover and collaborators more than three decades ago,but disagrees with recent EFT calculations that were performed within the perturbative scheme proposed by Kaplan,Savage,and Wise.Possible reasons for the difference are discussed.展开更多
This study investigated the elastic and inelastic scattering of^(3)He particles from^(12)C,^(16)O,^(24)Mg,and^(28)Si nuclei at 60 MeV using a double-folding approach with four newly derived effective nucleon-nucleon(N...This study investigated the elastic and inelastic scattering of^(3)He particles from^(12)C,^(16)O,^(24)Mg,and^(28)Si nuclei at 60 MeV using a double-folding approach with four newly derived effective nucleon-nucleon(NN)interactions(R3Y(HS),R3Y(L1),R3Y(W),and R3Y(Z))derived from the relativistic mean-field theory.The four derived effective NN interactions exhibited strong sensitivity to the choice of exchange potential.Regularizing the NN interactions improved the agreement between calculated folded potentials and experimental data.Normalization constants for the R3Y(HS)interaction suggested its superiority over the R3Y(L1)and R3Y(W)interactions within the double-folding framework.Transition potentials based on two models,deformed potential and double folding potential,were used to describe inelastic scattering.Physically consistent deformation parameters were obtained.The deformed potential model yielded better results for^(12)C and^(16)O,whereas the double folding model performed better for^(24)Mg and^(28)Si,suggesting that the advantage of the double folding model is limited to lighter targets.The Bohr-Mottelson transition density effectively described 2^(+)states;however,it was less suitable for the 3-state of^(16)O,for which a Tassie-like transition density provided improved agreement.展开更多
文摘The paper concerns the issue of ELF （English as a lingua franca） in the European and Asian context. The authors start from a brief conceptual perspective to shed light on salient aspects related to ELF. Then, this paper discusses the study investigating the interactions among NNS （non-native speakers） of English in the naturalistic settings, namely in Zhangjiajie （China）, Masouri （Kalymnos/Greece）, and Unterwasser （Switzerland）. The main objective of the research based on the qualitative methodology was to analyze the ELF interactions from the linguistic point of view focusing on lexicogrammar and pragmatic features. The secondary objective was to establish whether the identified ELF features contributed to communication intelligibility. The obtained results indicated a few significant similarities with the Seidlhofer＇s list of the ELT characteristics. Furthermore, it was established in the study that the ELF features did not interfere with effective communication between interlocutors
基金supported in part by the DFG and the NSFC through funds provided to the Sino-German CRC 110"Symmetries and the Emergence of Structure in QCD"(DFG grant.no.TRR 110)the VolkswagenStiftung(93562)supported in part by The Chinese Academy of Sciences(CAS)President’s International Fellowship Initiative(PIFI)(2018DM0034)
文摘Neutron-antineutron(n−n)oscillations in the deuteron are considered.Specifically,the deuteron lifetime is calculated in terms of the free-space n−n oscillation time τn−n based on NN and NN interactions derived within chiral effective field theory(EFT).This results in(2.6±0.1)×10^22τ2^n−n s,which is close to the value obtained by Dover and collaborators more than three decades ago,but disagrees with recent EFT calculations that were performed within the perturbative scheme proposed by Kaplan,Savage,and Wise.Possible reasons for the difference are discussed.
文摘This study investigated the elastic and inelastic scattering of^(3)He particles from^(12)C,^(16)O,^(24)Mg,and^(28)Si nuclei at 60 MeV using a double-folding approach with four newly derived effective nucleon-nucleon(NN)interactions(R3Y(HS),R3Y(L1),R3Y(W),and R3Y(Z))derived from the relativistic mean-field theory.The four derived effective NN interactions exhibited strong sensitivity to the choice of exchange potential.Regularizing the NN interactions improved the agreement between calculated folded potentials and experimental data.Normalization constants for the R3Y(HS)interaction suggested its superiority over the R3Y(L1)and R3Y(W)interactions within the double-folding framework.Transition potentials based on two models,deformed potential and double folding potential,were used to describe inelastic scattering.Physically consistent deformation parameters were obtained.The deformed potential model yielded better results for^(12)C and^(16)O,whereas the double folding model performed better for^(24)Mg and^(28)Si,suggesting that the advantage of the double folding model is limited to lighter targets.The Bohr-Mottelson transition density effectively described 2^(+)states;however,it was less suitable for the 3-state of^(16)O,for which a Tassie-like transition density provided improved agreement.
