The Usability of BenKids Mobile Learning App in Vocabulary Teaching for Preschool

At present, learning mobile applications (apps) have become highly popular and are widely used. However, they will only be accepted by users if their usability is of an acceptable level. Usability tests assist to measure the impact of a mobile learning app; researchers focus on the compatibility of the app interface with the cognitive skills of children and easy usage. The “BenKids” app has been designed especially for pre-school children (aged three to five). It was created for android devices to teach vocabulary to pre-school children by providing the user with an easy and simple interface. This study aimed to demonstrate a relationship between learning and the usability of the “BenKids” mobile app and explore its impact on children’s learning. The usability of the “BenKids” app was measured with 10 pre-school children. The results showed the effective usability of the app and strongly impacts learning.

Query co-planning for shared execution in key-value stores

Key-value stores propose a straightforward yet powerful data model. Data is modeled using key-value pairs where values can be arbitrary objects and written/read using the key associated with it. In addition to their simple interface, such data stores also provide read operations such as full and range scans. However, due to the simplicity of its interface, trying to optimize data accesses becomes challenging. This work aims to enable the shared execution of concurrent range and point queries on key-value stores. Thus, reducing the overall data movement when executing a complete workload. To accomplish this, we analyze different possible data structures and propose our variation of a segment tree, Updatable Interval Tree. Our data structure helps us co-planning and co-executing multiple range queries together and reduces redundant work. This results in executing workloads more efficiently and overall increased throughput, as we show in our evaluation.

Calculating Key Figures for Radiology Departments Using a Clinical Data Warehouse – A Technical Case Report

Optimizing the utilization of radiology departments is one of the primary objectives for many hospitals. To support this, a solution has been developed, which at first transforms the export of different Radiological Information Systems (RIS) into the data format of a clinical data warehouse (CDW). Additional features, like for example the time between the creation of a radiologic request and the finalization of the diagnosis for the created images, can then be defined using a simple interface and are calculated and saved in the CDW as well. Finally, the query language of the CDW can be used to create custom reports with all the RIS data including the calculated features and export them into the standard formats Excel and CSV. The solution has been successfully tested with data from two German hospitals.

Software for calculating the optimum tilt angle of PV modules in different latitudes of the Southern hemisphere and solar plant sizing

Through the development of photovoltaic technologies, the market related to this type of renewable energy grows constantly. In Brazil, the generated power through photovoltaic (PV) power stations approximates to 2.3 GW representing 1.3% of the total Brazilian energy mix. To supply the public it is necessary to offer tools that facilitate consumer decision making or even the work of a solar farm designer. By analyzing the user’s necessity, it is possible to determine that a great parcel needs a quick and simple response to help them with their questions, and programs that are already well established in the marketplace are complex for inexperienced users. For this reason, a software that calculates the best inclination for PV modules using the method proposed by Liu and Jordan in 1962 is developed. It also determines the number of modules that can be installed without any shading between arrays within a user-defined area. This calculation is possible through the standard dimensions provided by the module manufacturers and the solar height and declination study. Through a simple interface, the user quickly receives the optimum tilt angle of installation, the number of PV modules and the maximum generated power.

Thinking about the Design of Commercial Industry Space Facilities under the Background of Epidemic Situation

Objects: Based on the changes of people's life, work and social mode during the epidemic, it also brings a series of problems and thoughts to our interior designers in the interior space design, especially in the public commercial industryspace. Methods: the design of commercial space should pay more attention to the space functions such as ventilation quality, light environment, convenient human flow, rapid evacuation and other space functions, as well as relevant indoor space and facilities. Results: when we design commercial space, we should pay more attention to the detailed design of space identification guidance, space furnishing arrangement, spatial light environment and space air quality. Inclusion: let the interior space facilities design of commercial space not only stay in the form of simple interface, but also return to the essence of commercial space, and continue the whole process service between building space and business space environment.

Video Conference Application with File Attachment

Communication today is a human need as a social creature. In accordance with technological advances, communication can be in the form of instant messages such as WhatsApp, telegram and video converence, video converence services can communicate face- to-face with other users. Video converence in the most popular appstore and playstore, namely zoom meetings. Zoom meting makes it easy for users to create and schedule online meetings. the application is not equipped with file sharing services. In this case, users find it difficult to send files to other users who join the online meeting. The video converence application with a file attachment makes it easy in the morning for online meeting users to create, schedule and share files into online meetings. It is hoped that with this application users can easily share files in online meetings. This system is made with a simple interface design that is easy to understand for using the application. The purpose of this research is to make it easier for people to conduct online meetings. The method used is the waterfal method, while the data collection technique is quantitative data technique. The desired result of the research is to make it easier for people to conduct online meetings and send data through this application without having to open another application.

College Management System

This paper is aimed at developing an Online Application for students and college management. The main theme of the project is to develop an application that enables the students to perform the activities like fee payment, downloading learning materials, and get notifications about the attendance, results, etc; in a mobile application, It provides a simple interface for the maintenance of the student records. In the previous system, all the details have to view in a file or on a website. At the same time while searching for information it takes a long time to get the results. To overcome this an Android Application can be used to make this process much better. All the important data such as passwords are securely stored with the help of hashing techniques. The users of this application are students, Faculty, and Admin. The Faculty can log in to the application and can update the Attendance and Marks of the student. In case of any events or exams in the college, the students will be notified by Admin. As we are college students we know about these problems that we are facing due to the lack of this kind of application. So we thought of extending and solving some of the problems in our project so that it could be more useful for the students and they can easily use the application which is also very compatible for the teachers and students. The data relating to students is stored in Firebase. A web-based portal is designed for the faculty to upload the marks, results, and upload materials.

An automatic Time Table Generation

The manual system of preparing time table in colleges is very time consuming and Monotonous task which usually ends up with various classes clashing either at identical room or with same teachers having more than one class at a time. To slove all these problems we developing an automated system with computer assisted timetable generator. This system provides a simple interface for generating the timetable automatically. It can be used by educational institutes or colleges to view their timetable in most efficient and easy manner.