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View that Pyongyang is conducting a denuclearization propaganda campaign while working on the production of an atomic bomb.

The smartphone is a must-have mobile device for the military forces to accomplish critical missions and protect critical infrastructures. This paper explores the applicability of a technology prediction methodology to manage technological obsolescence while pursuing the acquisition of advanced commercial technology for military use. It reviews the Technology Forecasting using Data Envelopment Analysis (TFDEA) methodology and applies an author-written Stata program for smartphone technology forecasting using TFDEA. We analyzed smartphone launch data from 2005 to 2020 to predict the adoption of smartphone technology and discuss the pace of technological change. The study identifies that the market is undergoing reorganization as new smartphone models expand the market and increase their technical performance. The average rate of technological change, the efficiency change, and the technology change were 1.079, 1.004, and 1.011 each, respectively, which means that the technology progressed over the period. When dividing before and after 2017, technological change and efficiency change generally regressed except for Huawei, Xiaomi, and Oppo. This means that Chinese smartphones are expanding the global market in all directions and the technology is reaching maturity and market competition is accelerating.

Abstract: This paper emphasizes the need for change in Korea's national security strategy to meet the challenges of the era of globalization. Up to now, we have conceived national security in terms of our relationship with North Korea, resulting in military defense and politically centered concepts of security. It is argued that national security can be enhanced under democracy. This is because the state's accountability will be more developed as a result of transparency, mutual interaction with the public and the solidification of the collective responsibility for Korea's national security. Thus, we firmly believe that national security will become more secure when the ruling elite will have acquired greater legitimacy through political stabilization and social integration. In this context the current regime, which has peacefully inherited power horizontally, must focus its national security policy not only on military, but also social and political issues. The concept of national security is not nebulous and nor should it be taken as such. We also understand national security as an organic instrument for protecting, preserving and enhancing the national interest. In this respect, we emphasize the holistic nature of our national security problematique. As we enter the Twenty-first century, we must approach our national security from a bilateral, regional and global perspective, transcending our traditional sight anchored in the immediate affairs of the Korean peninsula. If we were to approach our national security as mentioned above—through the multidimensional prism of national defense, political stability, social integration, economic growth, cultural adaptation and environmental protection—Korea will be able to enhance its national interest in holistic terms.

The grape extract is a potential natural reducing agent because of its high phenolic content. The extracts of seeds, skin, and pulp of grape were prepared by digestion, grinding, and soxhlet methods and used for reducing graphene oxide (GO). The reduced GO made using the soxhlet extract of grape seed (GRGO) was hydrothermally treated with titanium dioxide (TiO2) for the synthesis of GRGO-TiO2 nanocomposite. The X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR), UV-vis, photoluminescence, and Raman spectra studies further confirmed the formation of GRGO and the GRGO-TiO2 hybrid. Scanning electron microscope and transmission electron microscope studies showed the decoration of spherical TiO2 particles ( 400 nm), GRGO-TiO2 showed ∼30% higher photo-oxidation of the bromophenol blue (BPB) dye than TiO2. Also, GRGO-TiO2 decreased the total organic carbon content of BPB from 92 to 18 ppm. Overall, the soxhlet extract of grape seed was found to be a cost-effective reducing agent for the preparation of GRGO, which is a suitable material to be used in supercapacitors and photocatalysis. ; Published version ; The authors are grateful to the Department of Science and Technology, Government of India, for its financial support. S. Ramasundaram and B. Kim acknowledge the Korea Ministry of Education, Science, and Technology for its financial support via the National Research Foundation of Korea for the priority Research Centers Program (NRF-2018R1A6A1A03025526) and in part by the Sabbatical Research Promotion Funding ...