The ultra vires decision of the German Constitutional Court - Time to fight fire with fire?

The German Constitutional Court’s ruling on the ECB’s PSPP put Europe in a turmoil. By declaring a ruling of the European Court of Justice ultra vires, and therefore not legally binding on Germany, the Bundesverfassungsgericht openly called into question the primacy of EU law and the authority of the ECJ. In this policy paper we argue that on these grounds there is good reason for the European Commission to bring infringement proceedings against Germany in order to, amongst others, protect the European legal order and emphasize the notion of equality of States in the EU

太陽光発電連系直流系統のための蓄電・水素システムに関する予測を基にした出力制御方策ならびに最適容量設計

筑波大学 (University of Tsukuba)201

A novel method for determining fixed running time in operating electric train tracking optimal speed profile

Tracking the optimal speed profile in electric train operation has been proposed as a potential solution for reducing energy consumption in electric train operation, at no cost to improve infrastructure of existing Metro lines as well. However, the optimal speed profile needs to meet fixed running time. Therefore, this paper focuses on a new method for determining the fixed running time complied with the scheduled timetable when trains track the optimal speed profile. The novel method to ensure the fixed running time is the numerical-analytical one. Calculating accelerating time ta, coasting time tc, braking time tb via values of holding speed vh, braking speed vb of optimal speed profile with the constraint condition: the running time equal to the demand time. The other hands, vh and vb are determined by solving nonlinear equations with constraint conditions. Additionally, changing running time suit for each operation stage of metro lines or lines starting to conduct schedules by the numerical-analytical method is quite easy. Simulation results obtained for two scenarios with data collected from electrified trains of Cat Linh-Ha Dong metro line, Vietnam show that running time complied with scheduled timetables, energy saving by tracking optimal speed profile for the entire route is up to 8.7%, if the running time is one second longer than original time, energy saving is about 11.96%

An Overview of Sustainable Ocean Resources for Socio-economic Development in Vietnam

Vietnam is one of the nation with long coastal with many valuable resources, which is the basis for the economy development from the ocean-based activities. This paper outlined the main maritime resources and their contribution to the socio-economic development in Vietnam. The raw data was collected from the readable sources such as General Statistics Office of Vietnam, Vietnam meteorological and meteorological data center…. as well as from the practical investigation. This raw data was processed and analyzed in order to have a general view on the majority marine resources in Vietnam. The results showed that there were 5 main resources (oil, fisheries, natural hydrate, green energy, and tourism) from the ocean, which significantly contribute to the economy development of Vietnam. The highest contribution of the oil value to the GDP was witnessed in 2011 with 26.6% of the GDP. While the value of the fisheries and tourism increased every year, the natural hydrate and energy from the ocean are still young areas, however, they come one step closer to the exploitation, which can greatly contribute to the Vietnam economy growth. With these valuable resources from the sea, Vietnam need to have reasonable policies and strategies for the management, exploitation, and export in order to able to effectively use of these resources for the sustainable economy development. Keywords: Ocean resources, sustainable development, fisheries, crude oil exploitation DOI: 10.7176/JRDM/69-05 Publication date:September 30th 202

Large displacements of FGSW beams in thermal environment using a finite element formulation

The large displacements of functionally graded sandwich (FGSW) beams in thermal environment  are studied using a finite element formulation. The beams are composed of three layers, a homogeneous core and two functionally graded face sheets with volume fraction of constituents following a power gradation law. The material properties of the beams are considered to be temperature-dependent.  Based on Antman beam model and the total Lagrange formulation, a two-node nonlinear beam element taking the effect of temperature rise into account  is formulated and employed in the study. The element with explicit expressions for the internal force vector and tangent stiffness matrix is derived using linear interpolations and reduced integration technique to avoid the shear locking. Newton-Raphson based iterative algorithm is employed in combination with the arc-length control method to compute the large displacement response of a cantilever FGSW beam subjected to end forces.  The accuracy of the formulated element is confirmed through a comparison study. The effects of the material inhomogeneity, temperature rise and layer thickness ratio on the large deflection response of the beam are examined and highlighted

FACTORS AFFECTING THE SHARE OF FAKE NEWS ABOUT COVID-19 OUTBREAK ON SOCIAL NETWORKS IN VIETNAM

In recent days in Vietnam, the amount of fake news spreading online about the Covid-19 epidemic has shown signs of increasing, causing information confusion and complicating the situation. This fact has received significant attention from scientists. To supplement the evidence of previous studies, enrich the research literature and make policy recommendations to the Government, this study explores the factors influencing the sharing of fake news on social networks. This study was conducted through a cross-sectional survey using an intentional sampling technique (n = 200) multivariate linear regression analysis technique was applied to prove the hypotheses. Research results show that the factors of altruism, entertainment, socialization, self-promotion, and instant information sharing have a positive and meaningful impact on sharing fake news about Covid_19 on social networks

Multivalvular involvement associated with Libman-Sacks endocarditis detected by multimodality imaging: A case report

Libman-Sacks endocarditis accounts for 6–11 percent of systemic lupus erythematosus patients and is associated with varying degrees of valvular dysfunction, increased risk for stroke and transient ischemic attacks, and increased mortality. In previous studies, left-sided valvular Libman-Sacks vegetations were more frequently detected than right sided vegetations; reported cases of bilateral involvement is very rare. A comprehensive clinical assessment and the multimodality imaging is of utmost importance in the management of systemic lupus erythematosus. In this case report, we describe a 31-year-old female patient with uncontrolled systemic lupus erythematosus initially presented with gastrointestinal symptoms but eventually had a vegetation-like structure on the posterior leaflet of the mitral valve which was revealed during routine echocardiography. Two-dimensional/three-dimensional transthoracic and transesophageal echocardiography, cardiac magnetic resonance, and cardiac computed tomography further characterized the mitral valve vegetation and revealed an additional vegetation of the pulmonary valve. Echocardiography remains the cornerstone for the detection of Libman-Sacks vegetations. Cardiac MRI and cardiac CT are useful in characterizing lesion size and effects and may prove particularly helpful in the assessment of right-sided or multivalvular endocarditis. The presence of focal brain lesions on brain MRI prompted antithrombotic therapy