scholarly journals Shape adaptive IRS Enhanced SAG IoT Network

Author(s):  
Fei Qi ◽  
Wenjing Li ◽  
Peng Yu ◽  
Lei Feng ◽  
Fanqin Zhou

Abstract 6G technology connects physical and digital, and ubiquitous 6G services will provide convenience to users around the world. The concept of the world-earth integrated network is to seamlessly integrate these three subnets to better adapt to future development. This article introduces the world-earth integrated network and shapeadaptive IRS antenna technology. The shape-adaptive IRS antenna described in this article is made of flexible materials, and the physical shape of the antenna can be changed according to different situations, and specific radiation beams can be generated according to functional requirements. And the effectiveness of the shape-adaptive IRS antenna technology has been proven in the simulation results.

Author(s):  
Fei Qi ◽  
Wenjing Li ◽  
Peng Yu ◽  
Lei Feng ◽  
Fanqin Zhou

Abstract6G technology connects physical and digital, and ubiquitous 6G services will provide convenience to users around the world. The concept of the world-earth integrated network is to seamlessly integrate these three subnets to better adapt to future development. This article introduces the world-earth integrated network and shape-adaptive IRS antenna technology. The shape-adaptive IRS antenna described in this article is made of flexible materials, and the physical shape of the antenna can be changed according to different situations, and specific radiation beams can be generated according to functional requirements. And the effectiveness of the shape-adaptive IRS antenna technology has been proven in the simulation results.


2021 ◽  
Vol 48 (4) ◽  
pp. 53-61
Author(s):  
Andrea Marin ◽  
Carey Williamson

Craps is a simple dice game that is popular in casinos around the world. While the rules for Craps, and its mathematical analysis, are reasonably straightforward, this paper instead focuses on the best ways to cheat at Craps, by using loaded (biased) dice. We use both analytical modeling and simulation modeling to study this intriguing dice game. Our modeling results show that biasing a die away from the value 1 or towards the value 5 lead to the best (and least detectable) cheating strategies, and that modest bias on two loaded dice can increase the winning probability above 50%. Our Monte Carlo simulation results provide validation for our analytical model, and also facilitate the quantitative evaluation of other scenarios, such as heterogeneous or correlated dice.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Tiancheng Xu ◽  
Youbing Xia

Acupuncture is gaining increasing attention and recognition all over the world. However, a lot of physical labor is paid by acupuncturists. It is natural to resort to a robot which can improve the accuracy as well as the efficacy of therapy. Several teams have separately developed real acupuncture robots or related technologies and even went to the stage of clinical trial and then achieved success commercially. A completed clinical practical acupuncture robot is not far from reach with the combination of existing mature medical robotic technologies. A hand-eye-brain coordination framework is proposed in this review to integrate the potential utilizing technologies including force feedback, binocular vision, and automatic prescription. We should take acupuncture prescription with artificial intelligence and future development trends into account and make a feasible choice in development of modern acupuncture.


2021 ◽  
Vol 129 ◽  
pp. 01030
Author(s):  
Ladislav Vagner

Research background: The disease, which broke out in December 2019 in the Chinese city of Wuhan and caused a pandemic around the world, has a constant impact on the economies of the countries even after almost two years. The issue of the effect of COVID-19 on the global economy and overall earnings management persists. Due to the topicality of the problem, we focused on the impacts and measures affecting the company’s operation. Purpose of the article: The purpose of this research article is to summarize current information on coronavirus and its effects almost two years after the outbreak. Additionally, outline three different scenarios that could occur. We also took into consideration scientific sources that deal with the shock of COVID-19. In addition, we summarize the opinions of scientific authors. Methods: Within the methodology, we used mainly the analysis and obtaining an objective picture of the current situation in the world. Following the outbreak of the pandemic, there have been significant inconstancies in GDP. Subsequently, we focus on the development of individual selected macro indicators that best describe the global economy. Findings & Value added: Finally, we offer three scenarios that outline three different situations that may occur, which we worked on based on a scenario analysis based on a modification of the sensitivity analysis, to specify future development scenarios based on macroeconomic indicators.


Author(s):  
E. Tabarah ◽  
B. Benhabib ◽  
R. G. Fenton ◽  
G. Hexner

Abstract A new method is presented for the optimal coordination of a two-robot system performing contact operations. One of the robots carries a tool and performs the specific contact operation on a workpiece which is grasped and maneuvered by the second robot. The two robots move simultaneously relative to each other so that the tool maintains contact with the workpiece while moving along its prescribed trajectory at a constant speed. This prescribed trajectory, which is specified with respect to the workpiece frame, is thus resolved into a pair of conjugate trajectories, one for each robot, and specified in the world coordinate frame. This resolution process does not yield a unique solution, i.e. there exist an infinity of conjugate-trajectory pairs corresponding to a given tool trajectory. This paper presents a technique for resolving the original tool trajectory, where the robots’ conjugate trajectories are parameterized using polynomial functions. A method is then developed for selecting the optimal pair of conjugate trajectories on the basis of minimizing a given choice of cost function. This optimization is further enhanced by coupling it to a procedure for selecting the optimal layout of the robots within the workcell, resulting in the best possible solutions. Numerical simulation results support the validity of the proposed technique.


Author(s):  
Lichtenstein Natalie

Chapter 10, Reflections, draws on the histories of AIIB’s predecessors to single out themes that may prove relevant for AIIB’s future development. Examples are taken from the stories of the World Bank, and the Inter-American Development Bank (IADB), the Asian Development Bank (AsDB), the African Development Bank (AfDB) and the European Bank for Reconstruction and Development (EBRD). Principal themes are: economic and financial environment; international relations and politics; funding; membership changes; major shareholders; clients and operations; leadership and governance; and attitudes toward change. While AIIB has been established in a world far different from the second half of the twentieth century that saw the birth of its predecessors, many of these aspects of the development of these multilateral development banks may prove similarly influential as AIIB’s future unfolds.


Author(s):  
James Midgley

The term “international social welfare” is used to refer both to social welfare policies and programs around the world and to the academic study of international social welfare activities. The entry focuses on the latter meaning and provides an overview of the history of scholarly inquiry into international social welfare, the key topics that have been identified and discussed by international social welfare scholars, and the likely future development of the field.


2014 ◽  
Vol 644-650 ◽  
pp. 3671-3674
Author(s):  
Yi Yang ◽  
Jing Xian Lv ◽  
Lei Sheng ◽  
Yu Sun ◽  
Xuan Chen Zhao

With the extensive construction of integrated network management system for electric power communication, the practical level of construction has become a key factor on its effective. This article analyzes the advantage and necessity of the construction of integrated centralized power communication network management system, review and summarize the electrical communication in real-time operation, maintenance management, operating mode management, professional management, the integrated management and control needs, professional collaborative management six aspects of the functional requirements analysis, elaborate communication network management system application exploration and research, and the future utility of the road overall construction ideas.


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