scholarly journals Dynamic transformation between a skyrmion string and a bimeron string in a layered frustrated system

2021 ◽  
Vol 104 (22) ◽  
Author(s):  
Xichao Zhang ◽  
Jing Xia ◽  
Oleg A. Tretiakov ◽  
Hung T. Diep ◽  
Guoping Zhao ◽  
...  
Author(s):  
Joseph Ben Prestel

Beginning around 1860, authors in the Egyptian capital portrayed Cairo’s changing cityscape and the recent emergence of local newspapers in terms of their impact on rationality (‘aql). In their descriptions, these contemporaries depicted rationality as an education of the heart that especially enabled men from the middle class to control their bodies and passions. The chapter shows that Cairo’s transformation was, however, not always associated with rising rationality by drawing on a different set of sources. Police and court records from the 1860s and 1870s demonstrate that contemporaries also described processes of urban change as a danger to the “honor” of lower-class women. Like the debates in Berlin, emotional practices in Cairo thus served as a way to address the social formation of the Egyptian capital during a time of dynamic transformation.


Author(s):  
Joseph Ben Prestel

Between 1860 and 1910, Berlin and Cairo went through a period of dynamic transformation. During this period, a growing number of contemporaries in both places made corresponding arguments about how urban change affected city dwellers’ emotions. In newspaper articles, scientific treatises, and pamphlets, shifting practices, such as nighttime leisure, were depicted as affecting feelings like love and disgust. Looking at the ways in which different urban dwellers, from psychologists to revelers, framed recent changes in terms of emotions, this book reveals the striking parallels between the histories of Berlin and Cairo. In both cities, various authors associated changes in the city with such phenomena as a loss of control over feelings or the need for a reform of emotions. The parallels in these arguments belie the assumed dissimilarity between European and Middle Eastern cities during the nineteenth century. Drawing on similar debates about emotions in Berlin and Cairo, the book provides a new argument about the regional compartmentalization of urban history. It highlights how the circulation of scientific knowledge, the expansion of empires, and global capital flows led to similarities in the pasts of these two cities. By combining urban history and the history of emotions, this book proposes an innovative perspective on the emergence of different, yet comparable cities at the end of the nineteenth century.


2018 ◽  
Vol 941 ◽  
pp. 633-638
Author(s):  
John Joseph Jonas ◽  
Clodualdo Aranas Jr. ◽  
Samuel F. Rodrigues

Under loading above the Ae3 temperature, austenite transforms displacively into Widmanstätten ferrite. Here the driving force for transformation is the net softening during the phase change while the obstacle consists of the free energy difference between austenite and ferrite as well as the work of shear accommodation and dilatation during the transformation. Once the driving force is higher than the obstacle, phase transformation occurs. This phenomenon was explored here by means of the optical and electron microscopy of a C-Mn steel deformed above their transformation temperatures. Strain-temperature-transformation (STT) curves are presented that accurately quantify the amount of dynamically formed ferrite; the kinetics of retransformation are also specified in the form of appropriate TTRT diagrams. This technique can be used to improve the models for transformation on accelerated cooling in strip and plate rolling.


2021 ◽  
Author(s):  
Jian Zhao ◽  
Xiangrui Xi ◽  
Hang Dong ◽  
Yuanhao Li ◽  
Minzheng Jiang

The high-efficient development, storage and transportation of waxy crude oil has a significant meaning for stable supplying of petroleum energy. The variety of complex morphology and microstructure of wax crystals...


2018 ◽  
Vol 931 ◽  
pp. 699-704
Author(s):  
Yulia V. Gorgorova ◽  
Mikael G. Sarkisyants

In the article, the authors analyze the experience and history of the construction of mobile buildings. The authors propose the classification of types and principles of dynamic transformation of buildings. The article is illustrated with examples of dynamic building transformations.


Author(s):  
А.А. Хафизова

Актуальность статьи обусловлена тем, что образовательное пространство современности подвластна динамичной трансформации, которая предписывает постоянную эволюцию образовательной системы. Разрабатываются и апробируются новые технологии, применяются новейшие средства и формы обучения, в процесс обучения внедряется цифровая образовательная среда. В таких условиях представляется важным обратить особое внимание на подготовку педагогических кадров. В статье представлена авторская педагогическая модель формирования готовности к творческому саморазвитию будущих учителей начальных классов. Для прогрессии компонентов творческого саморазвития будущих учителей начальной школы использовались практические задания с творческим уклоном и творческие упражнения. Проанализированы и интерпретированы результаты исследования по эффективности педагогической модели формирования готовности к творческому саморазвитию будущих учителей начальных классов. Творческая направленность педагогической профессии требует подготовки будущих учителей начальных классов, способных к творческому саморазвитию. The relevance of the article is caused by the fact that the educational space of our time is subject to dynamic transformation, which prescribes the constant evolution of the educational system. New technologies are being developed and tested, the newest means and forms of education are used, a digital educational environment is being introduced into the learning process. In such conditions, it seems important to pay special attention to the training of teaching staff. The article presents the author's pedagogical model of the formation of readiness for creative self-development of future primary school teachers. For the progression of the components of creative self-development of future primary school teachers, practical tasks with a creative bias and creative exercises were used. Analyzed and interpreted the results of research on the effectiveness of the pedagogical model of formation of readiness for creative self-development of future primary school teachers. The creative orientation of the teaching profession requires the preparation of future primary school teachers capable of creative self-development.


2021 ◽  
Vol 232 ◽  
pp. 04002
Author(s):  
Sri Hery Susilowati ◽  
Ashari ◽  
Tahlim Sudaryanto

The agricultural and rural sectors in Indonesia have experienced a dynamic transformation. This process of transformation reflected the changes in employment and income structure. This paper analyzes the changes in employment, income structures, and dietary patterns in various ecosystems, namely wetland paddy, dry land secondary, vegetables, and plantation. We use micro panel data collected from 1,155 rural households in 8 provinces, and 33 villages in Java and off-Java in 2007-2012 and 2016 -2018. The results showed that the share of agriculture employment decreased from 89.1 % in 2007 to 56.7 % in 2016 in the wetland paddy ecosystem, and the reverse was true for non-agricultural employment. Household income from agriculture was still dominant but showed a decreasing trend. The share of agriculture income declined; the most significant decline is in the wetland paddy ecosystem. Furthermore, a nonfarm income also tends to increase. Share of cereal consumption expenditure tends to decrease while processed foods and instant drinks tend to grow. For accelerating agricultural and rural transformation, government policy should focus on investment in rural infrastructure, promote labor and land markets, and build capacity building based on the need for a different ecosystem of the rural population.


2007 ◽  
Vol 539-543 ◽  
pp. 2787-2792 ◽  
Author(s):  
Minoru Umemoto ◽  
Yoshikazu Todaka ◽  
Jin Guo Li ◽  
Koichi Tsuchiya

Formation of nanocrystalline structure by severe plastic deformation has studied extensively. Although ultra fine grained structure (grain size larger than 100 nm) had been obtained in many processes such as heavy cold rolling, equal channel angular pressing (ECAP) or accumulative roll bonding (ARB), the formation of nano grained structure (< 100 nm) is limited to processes such as ball milling, shot peening or drilling. In the present study, high pressure torsion (HPT) deformation and drilling were carried out to understand the conditions necessary to obtain nano grained structure in steels. The results of HPT experiments in pure Fe showed that HPT has superior ability of strengthening and grain refinement probably due to a strain gradient but the saturation of grain refinement occurs before reaching nano grained structure. Drilling experiments in high carbon martensitic steel revelaed that nano grained ferrite forms at the drilled hole surface only when the transformation from ferrite to austenite takes place during drilling. Considering various other processes by which nano grained ferrite was produced, it is proposed that heavy strains with large strain gradients together with dynamic transformation are necessary to reach nano grained ferrite structure.


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