British mining and exploration companies were active in Spitsbergen, today Svalbard, between 1904 and 1953.This period was marked by events like the First World War and the signing of the Spitsbergen Treaty, some say Svalbard Treaty, and was therefore politically charged.This article investigates the British Arctic enterprise as portrayed in an inf
The existence of large nonlinear optical coefficients is one of the preconditions for using nonlinear optical materials in nonlinear optical devices.For a crystal, such large coefficients can be achieved by matching photon energies with resonant energies between different bands, and so the details of the crystal band structure play an important rol
The evaluation of tourism development potential (TDP) is the crucial foundation and critical step for sustainable regional tourism development.Prior studies mainly evaluate TDP through the univariate potential model and the multi-indicator descriptive evaluation.However, these two methods have only limited effectiveness for the destination’s TDP