A Focused Review on Engineering Application of Multi-Principal Element Alloy

Compared with traditional alloys with one principal component up to 40–90%, multi-principal element alloys (MPEAs) were born in the complicated intermingling of traditional and non-traditional physical metallurgy, and brings us a great amount of excellent performances. Here, we would briefly summarize the potential applications in some key areas, which is helpful for latecomers to quickly and comprehensively understand this new alloy system. Especially, the applications of MPEAs in aerospace, industrial equipment, national defense, energy, navigation and so on are discussed roughly. Subsequently, several emerging areas have also been compared. Finally, some suggestions are given for the future development trend.

The Constitutionality of Compulsory Land Acquisition in Vietnam: Issues and Recommendations

This article identifies and analyzes the theoretical, constitutional, and practical bases for governmental land acquisition in Vietnam from a comparative perspective. The authors contrast political ideologies of private ownership and public interests to elucidate the grounds for compulsory acquisition of property for public uses. By reviewing constitutional provisions on compulsory land acquisition in several countries (Singapore, Korea, Australia, India, and the United States), and exploring Vietnam’s constitutional provisions on land acquisition for national defense, security and socio-economic development, this article analyzes some key themes of purposes, procedure, and compensation. The paper then suggests specific changes to Vietnam’s Land Law to increase transparency and to provide more legal safeguards for private users of property when government entities recover privately-used land for public purposes.

Strengthening Military Defense Resources to Non-Military in Facing Nuclear Emergencies to Support National Defense

Indonesia has the potential for a nuclear emergency, so it is necessary to prepare resources to deal with nuclear emergencies to minimize losses. A nuclear emergency caused by a nuclear reactor accident is a non-military defense sector as the main component supported by other elements of the nation's power. Nuclear Biology and Chemical Company of the Indonesian Armed Forces Army (Kizinubika) is another element of the nation's power that provides reinforcement in non-military defense in the face of nuclear emergencies. The purpose of this study is to strengthen the Kizinubika resources for the Nuclear Energy Supervisory Agency (Bapeten) and the Directorate for the Management of Nuclear Facilities at the National Research and Innovation Agency (DPFKN-BRIN) in dealing with nuclear emergencies in order to support national defense. This type of research is qualitative by using literature study, observation, and interview methods. Internal resource criteria are determined based on the Resources Based View (RBV) theory. The results of the study in the form of recommended resources in strengthening the Kizinubika against Bapeten and DPFKN-BRIN in the form of; (1) The use of the Kizinubika facility as a joint training facility and infrastructure; (2) The use of special equipment Kizinubika in support of nuclear emergency response; (3) Kizinubika's strategic location close to DPFKN-BRIN supports speed in emergency response; (4) Use of Kizinubika's Human Resources through joint training in increasing the quantity and quality of training; and (5) Kizinubika's internal organizational relations support the task of dealing with nuclear emergencies.

Catalytic Polymerization of Phthalonitrile Resins by Carborane with Enhanced Thermal Oxidation Resistance: Experimental and Molecular Simulation

Biphenyl phthalonitrile (BPh) resins with good thermal and thermo-oxidative stability demonstrate great application potential in aerospace and national defense industries. However, BPh monomer has a high melting point, poor solubility, slow curing speed and high curing temperature. It is difficult to control the polymerization process to obtain the resins with high performance. Here, a BPh prepolymer (BPh-Q) was prepared by reacting 1,7-bis(hydroxymethyl)-m-carborane (QCB) with BPh monomers. The BPh-Q exhibited much better solubility, faster curing speed and lower curing temperature compared with pure BPh and BPh modified with bisphenol A (BPh-B, a common prepolymer of BPh). Thus, the polymerization process of BPh was greatly accelerated at a low temperature, resulting in a BPh resin with enhanced thermostability and oxidation resistance. The experimental and theoretical models revealed the promotion effect of B-H bond on the curing reaction of phthalonitrile via Markovnikov addition reaction due to the special steric structure of carborane. This study provided an efficient method to obtain low-temperature curing phthalonitrile resins with high thermal and thermo-oxidative resistance, which would be potentially useful for the preparation of high-performance cyanide resin-based composites.

Prohibited Press in the Central State Bookshop in 1919–1940

This article analyses the issues of collecting and storing illegal publications and those confiscated by censorship authorities in the Central State Bookshop. It describes the structure of the military and other general censorship institutions, which sent the prohibited press to the Central State Bookshop. The aim of the study is to establish the approximate date of commencement of the activities of the department that stored confiscated by censorship or illegally issued publications, and several lists of publications prohibited by censorship and transmitted by the CSB are discussed. It is worth noting that until the 1940s, libraries were also called bookshops. In 1936, after the promulgation of the Law on Public Libraries, the Central State Bookshop became the Central State Library, and its departments became state public libraries. Between 1919–1922, under the management of Eduardas Volteris, the collection and storage of illegal and censored publications at the Central State Bookshop became a matter of interest. The legal deposit was the key and constant source of acquisition of the collections of the Central State Bookshop. In 1919 and 1935, the press laws stipulated how many mandatory copies had to be delivered to county governors or simply to state institutions. However, illegal and confiscated publications were not included in the legal deposit. The main aim of the library was to collect and store all publications published in Lithuania and by Lithuanian publishers abroad. Therefore, it was important for the library to compile a complete set of the current press. To obtain prohibited titles, the library cooperated with the structural units of the Ministry of National Defense and the Ministry of the Interior responsible for the supervision of the press. In various historical periods, unequal attention was paid to the compilation of censorship-restricted press in the Central State Bookshop. Until the 1930s, there was an intensive correspondence between war censors and the Press and Societies Division of the Department of Civil Protection about sending and collecting prohibited press in the Central State Bookstore. During c. 1920–1921, illegal and confiscated publications began to be collected in a separate office called the “secret division”. In the 1940s, censorship institutions sent lists of prohibited press of various volumes to the library. After reviewing the publications on these lists, no signs of censorship could be found. Records of censorship office provenances and censorship officers were found in individual publications that were not included in the lists of prohibited books. Although the publications confiscated by censorship authorities were stored in the library of the University of Lithuania, and in the library of Vytautas Magnus University since 1930, CSB was the only library in the interwar period in which special attention was paid to the issues of collecting prohibited press. Use of the prohibited press was restricted. These titles were not open to general public; only employees of ministries and members of the Seimas could read it. The prohibited press could serve scientific research and press statistics.

Energy Resilience Impact of Supply Chain Network Disruption to Military Microgrids

The ability to provide uninterrupted power to military installations is paramount in executing a country’s national defense strategy. Microgrid architectures increase installation energy resilience through redundant local generation sources and the capability for grid independence. However, deliberate attacks from near-peer competitors can disrupt the associated supply chain network, thereby affecting mission critical loads. Utilizing an integrated discrete-time Markov chain and dynamic Bayesian network approach, we investigate disruption propagation throughout a supply chain network and quantify its mission impact on an islanded microgrid. We propose a novel methodology and an associated metric we term “energy resilience impact” to identify and address supply chain disruption risks to energy security. The proposed methodology addresses a gap in the literature and practice where it is assumed supply chains will not be disrupted during incidents involving microgrids. A case study of a fictional military installation is presented to demonstrate how installation energy managers can adopt this methodology for the design and improvement of military microgrids. The fictional case study shows how supply chain disruptions can impact the ability of a microgrid to successfully supply electricity to critical loads throughout an islanding event.

Indonesian Economic Policy Universal Basic Income During the Covid-19 Pandemic for National Defense

The impact of the COVID-19 pandemic has prompted the government to carry out social assistance programs. The purpose of this study is to analyze Universal Basic Income as a response to the COVID-19 pandemic which can simultaneously strengthen economic defenses in Indonesia as a form of peace dividends. This research uses the literature study method to previous relevant research strategy theory by identifying ends, ways, and means. The results of this study support universal basic income as a policy (ways) to deal with the crisis due to COVID-19 pandemic. UBI can provide an increase in Indonesia's economic growth and empower Indonesian people to be better prepared to face risks, which will lead people to innovate more. UBI can also strengthen the defense economy in Indonesia because by reducing poverty, unemployment and social inequality, the crime rate caused by the economy will decrease, human resources will increase, and community relations will be stronger (ends). The resources (Means) needed to implement UBI in Indonesia are the budget, existing regulations, human resources (HR), and the latest Indonesia’s population data.