With the rapid development of network technology and multimedia technology, especially in the special environment of 2020, online learning has become one of the main learning methods under the digital learning environment. At the same time, in the process of constructing digital learning resources, online learners are prone to new problems such as loss of focus and fluctuation of learning effect. How to fundamentally stimulate and maintain the learning interest of online learners in the process ...

E-Learning and Knowledge Management 

The paper deals with the modification effect of dispersed oxides particles (Al₂O₃, MgO, ZrO) on the dendrite structure in low-alloy weld metal. The flux-core wire 1.6 mm diameter for inoculating of oxides powder to weld pool was purposed. Obtained results confirmed an influence of inoculated refractory oxides on dendrites size and morphology, microstructure and mechanical properties of the weld metal.

Metal Material 

Language is the key feature of distinguishing human from other animals. The history of language evolution can be traced back to ancient Egypt. Since Darwin published The Origin of Species for more than a century, the tradition of studying language with the idea of evolution has been very popular. It is found that the research on language evolution is an interdisciplinary study, and its progress involves the latest development of many disciplines. In order to reach a consistent view on language e...

Linguistics 

As a nationality without written language, the Qiang nationality had developed up to now with its own architectural characteristics, national culture and religious belief, which is of great research value . Because the Qiang people are located in a relatively closed area, so far they had been able to retain the original architectural features and show their unique architectural features, especially the symbolic symbols with national characteristics in architectural decoration, which express some...

Culture  Architecture 

The COVID-19 pandemic is an unprecedented and unimaginable occurrence for people around the world. The COVID-19 pandemic makes people feel fear and panic about the risks that could cause the virus SARS-Cov2, but likewise also for social welfare, standard of living, workplace, salary and other aspects of people’s social life. A major event is precisely the closure of schools and the transition to online learning which undoubtedly highlighted the importance of the ICT sector. A global concern is a...

Technology 

This paper aims to discuss the awakening of civility in adolescents through the conception they have about political leadership. It proposes to consider how identity relates to civic actions, analyzing what young people think of their political leaders and the notion of civism. Our hypothesis is that the idea of ethical/non-ethical leadership projection allows the identification with moral values (dignity and respect) and material values (power). Theoretically, our discussion is supported by stu...

Sociology 

Wind load is the important factor influencing arc-extinguishing of arc. Establishing arc chain motion model of 35 kV parallel gap under wind load condition, the electromagnetic force, air resistance and wind force of a single arc element are analyzed by using the chain arc model. The arc motion parameters were solved. The arc anti-resistance and arc resistance are calculated; the criterion of arc extinguishing is defined; the arc burning time is calculated, and the arc burning time is obtained. ...

Mechanical Engineering 

The spread of English from a foreign language (EFL) to a lingua franca (ELF), underpinned by American culture, Anglophone culture, Western culture and the orientation of cultural universalism within the sphere of China and the Sinitic world, has been producing three linguistic-cultural circles: the outer is ELF and the culture; the superficial is the official Mandarin Chinese as a lingua franca (CLF) that represents the mainstream/dominant culture and political unification; and the inner, the ve...

Linguistics 

Polycyclic aromatic hydrocarbons (PAHs) are highly teratogenic, persistent, carcinogenic, and ubiquitous environmental contaminants. They present potential threats to the ecological environment and human health. Nine composite soil samples (three from each town) were collected at a depth of 0 – 30 cm using soil auger from the vicinity of selected petrol handling facilities (petrol stations) within three major towns in Kogi State-Nigeria, between September and October, 2020. The samples were anal...

Environmental Sciences 

Academic libraries are supposed to provide quality services to its user including international students in order to increase its patronage. The main purpose of this paper is to assess the frequency patterns of how international students use academic libraries. The user survey was conducted in Jiangsu University Library using the library usage pattern with Five-Point Likert scale survey questions from the LibQUAL TM model. The survey was administered to the international students, with 201 respo...

Library, Intelligence and Philology