Aluminum alloy is one of the most widely used metal materials in today’s society. Measurement and analysis of its impurity elements can effectively improve the performance of aluminum alloy. Energy dispersive X-ray fluorescence spectrometry (EDXRF) was used to analyze the types and contents of impurity elements in aluminum alloys, and the best working conditions for the EDXRF analyzer to measure impurity elements in aluminum alloys were determined. The absorption and enhancement effect of Al, Zn...

Metal Material  Nuclear Physics 

With the rapid development of society and the change of people’s lifestyle, preschoolers between the ages of 3 and 6 are also deeply affected by the lack of physical activity. How to ensure children’s physical activity level has become an important research issue of children’s physical health. Based on this, this paper uses the literature method to study the factors influencing the physical activity of 3 - 6 years old children in kindergarten, and explore the favorable factors to enhance the phy...

Physical Education 

Introduction: Immunoglobulin D multiple myeloma (IgD MM) is a rare entity of multiple myeloma (2%), characterised by its clinical severity, renal presentation and poor prognosis. IgD myeloma remains an exceptional cause of chronic polyradiculoneuropathy. Observation: A 54-year-old patient, known to have type 2 diabetes since 2016, was admitted in December 2020 for non-febrile obnubilation associated with tetraparesis. The interrogation noted the occurrence of a motor deficit of the four limbs fo...

Neurology 

The basic principle of X-ray fluorescence analysis for the determination of impurity elements Mn, Fe and Ni in copper alloy is introduced. On the basis of experiments, through theoretical analysis and experimental data, the variation trends of characteristic peak area and peak back ratio of Mn, Fe and Ni elements with the change of light tube current and tube voltage are obtained, so as to establish the best working condition mode of different elements. The relative standard deviations of Mn, Fe...

Nuclear Physics 

In the new era, the party central committee attaches great importance to the Party’s own construction and development. As the youngest and most active member of the party, the college student party member shoulders the important mission of the future construction and development of the motherland. It is an urgent problem to be solved about how to strengthen the college students’ party spirit cultivation of all ethnic groups and gather the strength from them in the process of training and develop...

Sociology  Politics 

This paper highlights the significance of crime mapping in Makurdi metropolis using GIS applications to enhance identification, mapping and presentation of crime patterns and trends. Attribute data were obtained from police incident files while the spatial data were gotten from field work. The distribution of crimes and the variation of crime occurrences within the 5 police divisions were assessed, with B Police Division recording the highest crime incidences. Also, crime hotspots in the area we...

Information Science  Criminology 

This article selects GutangQingDiaolou type traditional village head village as the study case, based on the participatory research, GIS spatial analysis, detectors and other modern technologies and methods of geography, the Ming and Qing dynasties, before and after the founding of the people to the three stages of the 80s as the axis, discusses the thickening of the evolution of the village head and form structure, driving force and the driving mechanism. It also hopes to provide reference and ...

Architecture 

The state of Guerrero in Mexico is the main coconut copra producer with 84,881 hectares and employing more than one million wages annually. However, the production is facing very important and continuous losses due to aging of palms and a lack of technological options to enhance productivity. Farmer’s soils are linked to important problems of low fertility; and the studies to understand the relationship between soil nutrients supply and coconut nutrition are practically unknown. Considering the ...

Agricultural Engineering 

China’s ODA in Cambodia had been executed since the 1950s with the remarkable evidence of the four factories’ construction in Cambodia during the 1960s, while the United States of America had also experienced providing funds to build roads and bridges and other humanitarian reliefs in Cambodia during the 1950s and 1960s. After the national election in 1993, foreign assistance was given to Cambodia to support the economic infrastructure and to fill the gap of government expenditure budgets of eac...

International Relations 

Linguistic politeness enhances proper interaction among members of the society. During social interactions, interlocutors try to protect their positive public self-image and want to be seen as valuable members of the society. Politeness ensures effective Linguistic politeness enhances proper interaction among members of the National Assembly as they interact with each other in parliament. This study focused on the speeches of selected Members of Parliament in parliament context in order to find ...

Linguistics