Monikielisyys ja englannin kielen asema Helsingin turistikohteiden kielellisessä maisemassa. : Tapaustutkimus neljästä kirkosta ja niiden nettisivuista.

This thesis reports of a case study exploring the linguistic landscapes of four churches in Helsinki and their official websites. The aim of the study was to explore multilingualism and the status of English in the linguistic landscapes of main tourist destinations in Helsinki. In particular, the study aimed to find out how different languages, particularly English, are used in the linguistic landscape of Finnish tourism, as well as the reasons for this. Simultaneously, it explored the differences between on-site and online linguistic landscapes to find out how they affect visitors’ experiences. The data consist of photographs collected on-site in the four churches and the different language versions of the church websites. The thesis analysed the linguistic landscapes (LL) and virtual linguistic landscapes (VLL) by categorizing the collected data as monolingual or multilingual signs, as well as the appearing language order and the materiality of signs as temporary or permanent. The findings revealed that numerous languages were used in the LL and VLL, but Finnish remained the dominant language, with English, Swedish, and Russian coming in next. The number of languages on the websites was fewer than the number of languages on-site. A noteworthy discovery is that English was used more frequently than Swedish, even though Swedish is one of Finland’s national languages. English was also a common language in these churches since it was used in more temporary signs than permanent signs to transmit most of the current and up-to-date information to visitors. Based on the findings, the LL of the churches are mostly accessible to tourists, but that consistency of the signage could be thought out more thoroughly. With the increasing number of foreign tourists, more language versions of LL can be added, particularly English version, which is the world’s lingua franca. Some LL with grammatical and spelling mistakes can also be appropriately updated in order to provide visitors a better travel experience

The Predicament and Countermeasures of China’s 1+X Certificates system: Based on the Perspective of Stakeholders

China’s skilled talent evaluation certificates mainly include vocational qualification certificates, vocational skill level certificates and special vocational ability certificates, but they are not aimed at college students. In 2019, China launched the pilot of the 1+X certificate systems, proposing to develop vocational skill level certificates for college students, so as to improve the quality of vocational education in China. From the perspective of stakeholder theory, X certificates are of great significance to students, teachers, colleges, and employers. However, at present, X certificates still have some problems, such as insufficient authority for evaluation organizations, weak construction of teacher team, insufficient teaching supply and insufficient coverage of certificates. In order to improve the effectiveness of 1+X certificates, it is necessary to improve the authority of vocational skill level certificates, restructure the teaching staff, increase the types of X certificates, and restructure the curriculum system.

RBF-based supervisor path following control for ASV with time-varying ocean disturbance

1028-1036A robust model-free path following controller is developed for autonomous surface vehicle (ASV) with time-varying ocean disturbance. First, the geometrical relationship between ASV and virtual tracking point on the reference path is investigated. The differentiations of tracking errors are described with the relative motion method, which greatly simplified the direct differential of tracking errors. Furthermore, the control law for the desired angular velocity of the vehicle and virtual tracking point are built based on the Lyapunov theory. Second, the traditional proportional-integral-derivative (PID) controller is developed based on the desired velocities and state feedback. The radial basic function (RBF) neural network taking as inputs the desired surge velocity and yaw angular velocity is developed as the supervisor to PID controller. Besides, RBF controller tunes weights according to the output errors between the PID controller and supervisor controller, based on the gradient descent method. Hence, PID controller and RBF supervisor controller act as feedback and feed forward control of the system, respectively. Finally, comparative path following simulation for straight path and sine path illustrate the performance of the proposed supervisor control system. The PID controller term reports loss of control even in the unknown disturbance

Forced responses of the electromechanical integrated magnetic gear system

The electromechanical integrated magnetic gear (EIMG) is a new type of the magnetic gears, in which the traditional field modulated magnetic gear, drive and control are integrated. Considering the torque wave, the dynamic model of the EIMG system with four subsystems was founded and the resonance responses were discussed. The results show that the strong resonances will occur when the excited frequency is close to the natural frequencies of the inner rotor, the outer ferromagnetic pole-piece and the outer stator torsional modes. The resonances hardly happen when the excited frequency is close to other natural frequencies