The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The overall performance of listed Electric vehicle conductive charge couplers varies greatly based on engineering observations. In the field, excessive temperature rise at the connection between the charging station cord and the vehicle inlet has been noted. The temperature rise can be severe enough to damage the plastic coupler housings on both sides of the connection, and can occur in products that...
The present paper describes the strategies used to compile and teach an Informatics course developed during last years at Tallinn University of Technology. The strategy is based on the main principles of blended learning and the analysis of the results of experiments with students from different faculties. Various tests were carried out to identify students' levels of knowledge and preferences in...
This paper presents new cooling methods for permanent magnet synchronous machines (PMSM) with flux barriers. For a vehicle powertrain application the permanent magnet synchronous machines is a very popular choice, because of high power density, a high efficiency and the small package. However, this machine is susceptible to suffer insulations failures of coils and demagnetization of magnets under...
Effects on electromagnetic field (EMF) characteristics inside aircraft due to internal structures, such as phenol internal walls are experimentally investigated using a reverberation chamber. This is aiming to improve the accuracy of the numerical analysis method for the electromagnetic compatibility estimation of the Boeing 777 class large aircraft based on finite-difference time-domain (FDTD) technique...
When designing the electrical installations of an industry that processes flammable products, it is necessary to know where the classified locations are. These locations are identified in drawings in order to orientate the specification of adequate electrical and electronic equipment. This paper will show why the figures' copy-and-paste practice does not guarantee a cost effective installation and...
In the modern society, education is increasingly changing standards according to people needs, forcing young people to know more. We have many methodologies of teaching, but the most effective is using instruments, that well known to audience. Therefore, it will be productive to use technologies in learning and education processes to increase interest of students towards the different subjects. This...
Spare parts coding system is the basis of spare parts management. The article studies the principles, methods of spare parts coding system and impact for spare parts management information. According to the present situation of spare parts management in Group Company, spare parts center designs a set of spare parts coding system that included spare parts material encode, spare parts sole encode, encode...
engineering changes are not just critical evidences for engineering settlement between the two contracting parties in engineering construction, but also involve in the reallocation of responsibilities and risks such as laws, regulations, structural safety, technical standards, engineering scope, government acceptance, government supervision on quality and safety, health and epidemic prevention, planning,...
A methodology is proposed whereby performing a series of tests on a stator/winding subassembly can estimate the thermal envelope of a modular-wound single-layer machine topology. Concentrated windings offer many advantages, such as reduced manufacturing costs, improved thermal performance and readily lend themselves to fault-tolerant designs. Single-layer modular windings have inherent magnetic, thermal...
The new manufacturing technologies of the world are increasingly demanding the design and redesign of new alternative products and processes that can be useful and low cost term. The alternative solution and methodology to innovate in manufacturing processes of incremental sheet metal forming is shown in this paper. Through the methodology Product design specification (PDS) as a practical and effective...
Animated Pedagogical Agent (APA) is getting more attention and being implemented in various instructional applications regardless of learning disciplines. APA helps improve user learning experience and thus enhances and increases the effectiveness of the courseware. Studies also showed that learner's emotion have a tremendous effect in one's cognitive process. This paper discusses the pilot study...
The white cane plays a vital role in the independent mobility support of the visually impaired. Allowing the recognition of target attributes through the contact of a white cane is an important function. We have conducted research to obtain fundamental knowledge concerning the exploration methods used to perceive the hardness of an object through contact with a white cane. This research has allowed...
Pedicle screw fixation is a well-established procedure for various spinal disorders. However, pedicle screws failures are still reported. Therefore, there is a need for a greater understanding of the pedicle screw failure mechanism. This experimental study investigates the biomechanical stability of pedicle screws using a synthetic bone surrogate with a special focus on the screw loosening mechanism...
An objective estimate of listening effort could support the hearing aid fitting procedure. Most of the digital hearing aids have already hearing aid settings which are supposed to reduce the listening effort, but the effects of these settings on the individual's listening effort remain unclear. In this study, we propose an objective estimate of listening effort using electroencephalographic data....
A double-layer W/Bi sheet is proposed for a X-ray radiation protection at the energy range of 70 keV to 90 keV. Comparison of X-ray transmission intensity between simulation and measurement results is presented. Transmission intensity of X-rays with various incident angles is observed. This designed W/Bi sheet, only 0.14 mm thick, provides the same X-ray protection properties as the standard 0.50...
End of 2013 EURAMET, the European metrology organization opened a call to advance measurement science and technology in the field of Energy by providing funding for Joint Research Projects (JRP) to be funded jointly by the European Commission and the participating countries in the frame of the European Metrology Research Programme (EMRP). This paper describes a planned project; no technical results...
MSLA, the abbreviation of Moisture Sensitivity Level Analysis, is the meaning of moisture sensitivity level analysis. MSLA is to give the proposed package moisture sensitivity of surface mount components provide a standard of classification, so that different types of components to get the correct packaging, storage and handling to avoid moisture resulted failures in the assembly or repair process...
In this article, based on grey relational analysis method, relational polarity analysis for the anti-respiratory syncytial virus effect of compositions from Baikal skullcap root was studied. The compositions with reinforcement effect on the therapeutic index of anti-respiratory syncytial virus were found and ranked.
A new joint research project (JRP) integrating metrology institutes and universities from nine countries is aimed at realization of a new generation of standards for quantum resistance metrology. The project exploits graphene's properties to simplify operation of standards without compromising the unprecedented precision delivered by semiconductor quantum Hall devices. Higher operating temperatures...
Material flow cost accounting (MFCA) is an effective environment management tool which can visualize any waste so as to reduce the waste in the production process. However, cost allocation method of material flow cost accounting adopted in Japan is a little inaccurate and cumbersome for Chinese accountant. This study developed the modified MFCA which divided system and energy cost into those for waste...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.