Article
Materials Science, Multidisciplinary
Isaac Elishakoff
Summary: This paper reproduces translated letters from renowned expert Stephen P. Timoshenko to his colleague Vladimir I. Vernadsky. The letters shed light on Timoshenko's personality and attitudes towards various issues, providing insight not found in his autobiography.
MATHEMATICS AND MECHANICS OF SOLIDS
(2022)
Article
Mechanics
Isaac Elishakoff
Summary: This paper provides a detailed description of the life of the prominent author of mechanics textbooks Stephan P. Timoshenko in the former Russian Empire, based on letters written by his son Gregory Timoshenko and S.P. Timoshenko himself in his autobiographical book. It is suggested that these letters, which reveal the family's history, should be preserved in the library along with other Timoshenko material. The letters complement the autobiographical book, offering additional insights into their lives.
MECHANICS RESEARCH COMMUNICATIONS
(2021)
Article
Engineering, Civil
Gunasekaran Raja, Sudha Anbalagan, Geetha Vijayaraghavan, Sudhakar Theerthagiri, Saran Vaitangarukav Suryanarayan, Xin-Wen Wu
Summary: VANETs are crucial for ITS, but vulnerable to individual or distributed attackers. The SP-CIDS system utilizes DML model with vehicle collaboration to enhance storage efficiency, accuracy, and scalability of IDS. By employing DP technique, a private ensemble classifier secures training data and achieves 96.94% accuracy.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2021)
Editorial Material
Anthropology
[Anonymous]
Summary: This article introduces the authorial achievements of Jeremy Seabrook in various aspects such as the situation of the poor in Britain, the underprivileged in Asian sub-continent, the impact of imperialism and consumerism on the psyche, the meaning of work, the impact of environmental disaster, and the essence of being human. His career has been marked by expressing uncomfortable and challenging truths with immense empathy. The article also highlights the significance of understanding how globalization affects the psyche and sensibility of individuals whose lives have been uprooted and reshaped by the market economy, as discussed in his seminal piece, 'The soul of man under globalism'.
Article
Mathematics, Applied
Zhaochun Teng, Weibin Wang, Chunlong Gu
Summary: Based on the modified couple stress theory, the free vibration and buckling characteristics of porous functionally graded materials micro-beams are studied. The governing differential equations and their boundary conditions are transformed into algebraic characteristic equations, and the dimensionless fundamental frequency and critical buckling load are calculated under different boundary conditions. The effects of several factors are discussed.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2022)
Article
Mathematics, Applied
Sonja du Toit, Madelein Labuschagne, Alna van der Merwe
Summary: The Local Linear Timoshenko (LLT) model for planar motion of a rod undergoing flexure, shear, and extension is introduced, along with an algorithm developed for this model. The algorithm, based on the mixed finite element method, utilizes projections into finite dimensional subspaces to handle nonlinear forces and moments. The algorithm is applied to investigate elastic wave propagation in LLT rods, revealing interesting properties such as increased wave speed compared to linear Timoshenko beams and the occurrence of buckled states or equilibrium solutions for compressed LLT beams. Moreover, it is demonstrated that the LLT rod is suitable for studying large displacements and rotations in a wide range of slender elastic objects, from beams to highly slender flexible rods.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Review
Plant Sciences
Elaine Tobin
Summary: The author, a successful woman in the field of science, was motivated by her family background to pursue education and adventure, which led to strong support and accomplishments in her career. She not only had an interest in science, but also a strong interest and involvement in politics.
ANNUAL REVIEW OF PLANT BIOLOGY
(2022)
Editorial Material
Geosciences, Multidisciplinary
[Anonymous]
Summary: Cover letters are a crucial but often overlooked aspect of the publication process, and their quality can significantly impact editorial decisions.
Article
Business, Finance
Amy Hutton, Susan Shu, Xin Zheng
Summary: This study examines the impact of regulatory transparency on private and public enforcement, and finds that there is increased alignment between the SEC and shareholder litigants after public disclosure. This enhanced alignment is attributed to public scrutiny of regulatory oversight and increased access to information for litigants.
JOURNAL OF FINANCIAL ECONOMICS
(2022)
Article
Engineering, Electrical & Electronic
Seyyed Mohammad Hossein Hosseini, Hadi Arvin
Summary: This paper investigates the free vibrations of pre/post-buckled rotating functionally graded sandwich micro-beams, considering the thermo-mechanical characteristics of the material phases and introducing size effect through modified couple stress theory. The finite element technique is used to discretize the equations of motion, and the Newton-Raphson technique along with a proposed algorithm is employed to release the fundamental pre/post-buckling natural frequency. The study examines the impact of various parameters on the outcomes.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2021)
Article
History
Mark Hearn
Summary: Eric Hobsbawm explores the personal connection between historians and their histories, as well as the alternative models of a culturally and politically harmonious future through his account of the fin de siecle and its aftermath. Hobsbawm's own life story and personal objects play a significant role in shaping his narratives, emphasizing the importance of memory. He draws attention to the enduring presence of the past and its influence on his response to the lost realm of fin de siecle Vienna.
HISTORICAL JOURNAL
(2023)
Article
Mechanics
Nishant K. Shakya, Srikant S. Padhee
Summary: This study presents an asymptotically exact analysis of homogeneous-orthotropic prismatic beams with elliptic cross-sections. By using the Variational Asymptotic Method (VAM), the three-dimensional elastic problem of beam analysis is systematically reduced to two-dimensional cross-sectional analysis and one-dimensional beam analysis along the length. This reduction greatly simplifies the beam analysis and provides closed-form expressions for cross-sectional stiffness constants and displacement and strain fields. The results are validated by comparing them with existing literature and Finite Element Analysis (FEA) results, showing close agreement.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2023)
Article
Mathematics, Applied
Kenan Yildirim
Summary: Optimality conditions for a Timoshenko beam model are derived using the maximum principle. The existence and uniqueness of the solution to the beam system and the controllability properties of the system are discussed. The necessary optimality condition for the beam system, with rotary damping, external excitation, and mixed integral constraints, is derived in the form of the maximum principle. It is also indicated that the maximum principle is a sufficient optimality requirement under certain convexity assumptions on the constraints.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2022)
Article
Acoustics
Miaoxia Xie, Peng Zhang, Minghui Zhu, Fengwei Gao, Lixia Li, Ling Li, Yueming Li
Summary: In this study, an energy flow model of a wedge beam with variable thickness was established, and the energy density distribution on the beam structure was calculated by numerically solving the governing equation. The results showed that the wedge beam had a good energy absorption effect between 250 Hz and 2000 Hz, but the energy absorption effect decreased significantly with the increase of excitation frequency.
SHOCK AND VIBRATION
(2022)
Article
Family Studies
Pan Wang
Summary: This paper analyzes 200 love letters to reveal the experiences of a young Chinese couple during the Cultural Revolution in interpreting and maintaining love and marriage. It discusses how their 'sent-down' work at state-owned farms and the Mao-era emphasis on revolutionary politics influenced their relationship. It shows the impact of class struggle politics on youth dating, and the paradoxical existence of 'self-restraint' and 'self-indulgence' in their sexual affairs. The paper also explores the couple's pursuit of higher education and the changing dynamics of personal matters and political revolution. It concludes with the couple's reunion and marriage after a decade of separation, and the impact of Mao-era policies on their love and family formation.
HISTORY OF THE FAMILY
(2022)
