This paper presents a hybrid formation controller approach for non-holonomic mobile robots. This approach is based on the stable switching between a stable leader-following formation controller and an orientation controller. The switching attempts to maintain low values of formation errors during specific leader movements that otherwise will produce a significant increment on such errors. Exper...

Home Oxygen Therapy (H.O.T.) is a medical treatment for severe lung diseases in which the patients are supplied concentrated oxygen. This paper investigates the use of a follower robot as a support device for H.O.T. patients, consisting of a two-wheeled differential drive robot connected to the user by tether. Two different control algorithms were studied using dynamic simulation and motion cap...

Benevolent leadership, a traditional Chinese leadership style generated under the influence of Confucianism, has been under growing discussion since its proposal. However, existing research has focused mainly on the consequences of benevolent leadership, and research probing into its antecedents is scarce. To fill such research gap, the current study aims to explore the effect of the congruence...

Considering a supply chain with fashion products comprising of a supplier and a retailer, we study the sustainability of the supply chain with alternative power structures (either the supplier or the retailer has the option of acting as a leader to make the decisions first). We also examine the impact of the supplier’s attitudes to loss on the supply chain’s sustainability and profitability. We...

This paper provides a realization of distributed leader election without having any eventual timely links. Progress is guaranteed in the following weak setting: Eventually one process can send messages such that every message obtains f timely responses, where f is a resilience bound. A crucial facet of this property is that the f re-sponders need not be fixed, and may change from one message to...

We consider the following two-player pricing game. The second player, called follower, minimizes a continuous function plus a linear term over a compact subset of R≥0. The coefficients (or prices) in this linear term are chosen by the first player, the leader. The revenue of the leader is then the amount of the objective value that comes from the prices she set. The goal of the leader is to set...

This paper deals with the leader-following consensus of multi-agent systems with matched nonlinear dynamics. Compared with previous works, the major difficulty here is caused by the simultaneous existence of nonidentical agent dynamics and unknown system parameters, which are more practical in real-world applications. To tackle this difficulty, a distributed adaptive control law for each follow...

We introduce and summarize the researches that are categorized into parts on Twitter studied for the past five years. The circulators in Twitter can be divided into two types, mass media source and evangelist, except normal users. If a certain leader has a huge number of retweets, he/she may be seen as an influential leader. The less difference between the number of ‘following’ and ‘follower’ a...

The pheA structural gene of the phenylalanine operon of Escherichia coli is preceded by a transcribed leader region of about 170 nucleotide pairs. In vitro transcription of plasmids and restriction fragments containing the phe promoter and leader region yields a major RNA transcript about 140 nucleotides in length. This transcript, pheA leader RNA, has the following features: (i) a potential ri...

Consider the following: Team members are hijacking team meetings and convincing others to deviate from the original goals. The team leader lacks the skills to recognize these dynamics. Furthermore, the leader struggles with determining a turnaround approach and leadership model to effectively regain control of this intense team and refocus the members to achieve the original goals and objective...