Nonoscillations for odd-dimensional systems of linear retarded functional differential equations

AbstractThis paper is concerned with the nonoscillatory problems of odd-dimensional systems of linear retarded functional differential equations. Based upon the corresponding characteristic equations, we get some criteria for nonoscillations by utilizing the matrix measures

Achieving Secure and Efficient Cloud Search Services: Cross-Lingual Multi-Keyword Rank Search over Encrypted Cloud Data

Multi-user multi-keyword ranked search scheme in arbitrary language is a novel multi-keyword rank searchable encryption (MRSE) framework based on Paillier Cryptosystem with Threshold Decryption (PCTD). Compared to previous MRSE schemes constructed based on the k-nearest neighbor searcha-ble encryption (KNN-SE) algorithm, it can mitigate some draw-backs and achieve better performance in terms of functionality and efficiency. Additionally, it does not require a predefined keyword set and support keywords in arbitrary languages. However, due to the pattern of exact matching of keywords in the new MRSE scheme, multilingual search is limited to each language and cannot be searched across languages. In this pa-per, we propose a cross-lingual multi-keyword rank search (CLRSE) scheme which eliminates the barrier of languages and achieves semantic extension with using the Open Multilingual Wordnet. Our CLRSE scheme also realizes intelligent and per-sonalized search through flexible keyword and language prefer-ence settings. We evaluate the performance of our scheme in terms of security, functionality, precision and efficiency, via extensive experiments

Teaching Dilemmas and Incentive Strategies of University Young Teachers: An Expectancy Theory Perspective

As an important academic human resource in universities, young teachers undertake the responsibility of cultivating innovative talents for the country. From the perspective of expectancy theory, this study analyzes the teaching dilemmas of young teachers in universities from three aspects: expectancy, valence, and instrumentality. Based on results, specific suggestions are proposed to stimulate the teaching enthusiasm of young teachers, including establishing a scientifically reasonable assessment system to balance the relationship between teaching and research; optimizing the salary and welfare system of young teachers to motivate their teaching initiative; and enriching training and development programs for young teachers to enhance their teaching abilities. Keywords: teaching; incentive; expectation; young teachers DOI: 10.7176/JEP/14-18-11 Publication date:June 30th 202

Achievements and prospects of functional pavement: Materials and structures

In order to further promote the development of functional pavement technology, a Special Issue of “Achievements and Prospects of Functional Pavement” has been proposed by a group of guest editors. To reach this objective, articles included in this Special Issue are related to different aspects of functional pavement, including green roads to decrease carbon emission, noise, and pollution, safety pavement to increase skid resistance by water drainage and snow removal, intelligent roads for monitoring, power generation, temperature control and management, and durable roads to increase service life with new theory, new design methods, and prediction models, as highlighted in this editorial