A simple iodometric method of titration was used to determine the effect of storage, processing type and time on the vitamin C content of the leaves and stalk of Spinacea oleracea (alefo), Vernonia amygdalina (bitterleaf), Telfaria occidentalis( ugu), and Corchorus olitorius (ewedu). Processing methods like blanching, sundrying, and fridge storage were applied to each vegetable. Fresh leaves and stalk under no processing condition showed a vitamin C content of 140.5mg/100g and 61.0mg/100g for V. Amygdalina, while those of C.olitorius gave 28.2mg/100g and 4.4mg/100g respectively. Blanching at 20°C for 2 minutes yielded a higher amount of Vitamin C when compared to blanching at 100°C and 60°C. The highest loss of 95% was recorded for sundried leaves and stalk of all vegetables analysed. Fridge storage returned a higher amount of vitamin C for S.oleracea at day 1 and the lowest value for C.olitorius for the same day. The implication is that blanching and sundrying were observed not to be suitable as processing methods for vegetables especially in the tropics. Cold storage on the other hand remains a viable option.
E-learning shows a completely novel education environment for students, thus requiring a diverse ability set to be successful. Significant research and evaluation skills are growing in significance as students have increasing volumes of knowledge from a mixture of sources to sort through. In addition, mainly in courses that are completely electronic, students are much more independent than in the conventional setting. This requires that they be highly motivated and committed to teach, with less social interaction with peers or an instructor. E-learning is a computer assisted learning, and can be viewed as profession of teaching for student centered and collaborative learning. Near the beginning growths in e-learning focused on computer assisted learning, where part or all of the learning content is delivered digitally. In recent times, the pedagogical dimension of e-learning has become well-known. E-learning comprises all forms of electronically supported knowledge and education. The information and communication systems, whether networked learning or not, serve as definite media to realize the learning process.
Zero-shot learning (ZSL) has recently received extensive attention for its potential in achieving scalable object recognition with lower human labor cost relative to traditional supervised learning. However, zero-shot learning is a nontrivial problem, and its feasibility relies on satisfaction of several important assumptions and conditions, where learning knowledge shareable between seen classes and unseen classes becomes the foundation. A plenty of works are proposed from different views with various formulations while obeying the foundation. We will review the literature of zero-shot learning comprehensively while putting emphasis on analyzing their motivations, assumptions, and exact mechanism for learning transferable knowledge that is helpful for connecting testing images and description of unseen classes. Finally, benchmarks for evaluating and comparing kinds of approaches are discussed mainly involving the datasets, protocols and evaluation measures. We hope this review may shed light on advanced solutions to zero-shot learning.
Cultural differences among international students refer to the students from countries and regions differ from others in the aspects of belief, value concept, behavioral code, manners and customs. Due to the existence of the cultural differences, it is important to take interculture into consideration and take active counter-measures for the resulting problems in the teaching and administration of international students. Except for the substantial problems, the adaptability of international students is gradually emerged from the water. From the perspective of interculture, the paper deeply discusses the teaching and administration of international students in China based on the case study of Jinan University. Furthermore, it highlights the characteristics between East and West, tries to understand the interaction among cultures and attempts to put forward feasible solutions to the cultural adaptability of international students. The education and administration on the international students under the atmosphere of intercultural communication, it is necessary to realize that the education and administration on the international students is a kind of intercultural education and administration, and a kind of service-oriented education and administration model.
In this paper, the ion source electron beam evaporation method was used to fabricate ZnO films with Si as the base and TiO2 as the buffer layer. By further thermal insulation and annealing treatment at different temperature conditions, different film samples were prepared for the surface morphology analysis and light scattering properties study. The experimental results show that: Annealing temperature has significant influence on the sample surface roughness, grain size, fractal dimension and other parameters, and the surface morphology analysis is helpful to understand the grain growth mechanisms of film as well as the improvement of film preparation process.
There exist numerous of disputes about delaying retirement in China for a long time. Most discussions are made from two aspects: the necessity of delaying retirement and the possible impacts brought by delaying retirement. Most scholars advocate delaying retirement, while civilians have different opinions, which is caused by distrusting the government and unfair problems brought by dual-track approach of pension. So relevant departments should listen to reasonable suggestions so as to make a feasible policy.
Virtual reality technology enables people to rethink the real world in the traditional sense. The old and classical philosophical questions become hot topics because of its produce. For example, what is reality? How to define the reality? What is the relationship between possibility and reality? What is the nature of the virtual reality? Which problem will bring from virtual reality technology? I try to give some meaningful suggestions about these problems.