We present a solution to the apparent discrepancy between the radial gradient in the diffuse Galactic γ-ray emissivity and the distribution of supernova remnants, believed to be the sources of cosmic rays. Recent determinations of the pulsar distribution have made the discrepancy even more apparent. The problem is shown to be plausibly solved by a variation in the WCO-to-N(H2) scaling factor. I...

In this work, the beads and powder potassium hydroxide (KOH) carbonate (K2CO3) supported on alumina oxide (Al2O3) were successfully prepared via incipient wetness impregnation technique. Herein, perforated hydrophilic materials (PHM) made from low-density polyethylene (LDPE) was used as catalyst reactor bed. The catalysts investigated using TGA, XRD, BET, SEM-EDX, TPD, FTIR while spent analyzed...

In search of a more sustainable society, humanity has been looking to reduce the environmental impacts caused by its various activities. The energy sector corresponds one most impactful activities since energies produced come from fossil fuels, such as oil and coal, which are finite resources. Moreover, their inherent processes convert into electricity emit pollutants, responsible for global wa...

Traditional biodiesel methods have disadvantages of excessive alcohol demand, short catalyst life, high manufacturing cost. Reactive distillation (RD) simplifies operations by combining reaction and separation. In literature, there was a few experimental study on continuous–flow in RD column with heterogeneous catalyst. So, it aimed to develop economical continuous process for producing fatty a...

Biodiesel, as renewable and biological origin alternative diesel fuel, has been receiving a lot of concern throughout the world due to the energy needs and environmental awareness. However, at present, it is not economically feasible to use food-grade vegetable oils to produce biodiesel because of the surge in feedstocks price. Much attention has been devoted to the application of lower-cost fe...

For several years, international organisations including the Organisation for Economic Co-operation and Development (OECD), the World Bank, the World Customs Organization (WCO), the World Trade Organisation (WTO) and the European Union, have considered and provided recommendations on the use of information and communication technology (ICT) to enhance trade facilitation and to improve the proce...

The article analyzes the experience of EU in implementation state regulation field customs control, particular: it mechanism for determining value goods, its regulatory, institutional, procedural and organizational support. purpose is to analyze regarding simplified declarations possibility taking into account sphere Ukraine. uses historical method revealing historiography control analysis synt...