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 aim of the study is to develop a suitable method for thermographic control of corrosion in parts of magnesium alloys used in electronic packaging. Specimens with different thickness, representative of magnesium alloys of the three typical groups are studied: AZ91, AM50 and AE42. Thermographic investigation is conducted for the both specimens: without corrosion and corroded specimens in an environment...
The article examines the use of compact models and the thermal design of LED applications. The study shows that despite the simplified representation of the thermal behavior, compact models predict the transition temperature with a sufficiently good accuracy in the initial project phase. An evaluation of methods for further improvement in predictive accuracy is made.
Recently fuzzy logic has increasing its popularity. One of the main reasons is that it gives abstraction, so a system could be controlled, even if it is not fully describable. On the other hand, this approach simplifies integration of data from multiple sources and its proper usage. The paper is focused on a mature area of temperature control, so the data is homogenous and simple. This applicability...
In this paper we have examined the back-bias effect and its influence on Hall microsensor's behavior, which is manufactured on 0,18 µm CMOS technology. Then the sensor's parametric reliability was tested at the temperature range of −40°C to +150°C. The purpose of the constructed Hall cell is to improve sensor's characteristics, achieving high sensitivity with minimal parasitic offset effects.
In this work, two types organic solar cell (OSC) modules (with diferent organic semiconductor layer - zinc phtalocyanine (ZnPc) and DPP(TBFu)2-C60) are studied for determination of the effects of degradation in different zones of the OSC. Therefore is used thermographic approach for the monitoring and characterization of this effects. The dynamic infrared thermography is imposed as effective approach...
In this work, the capabilities of three (standard convection reflow, vacuum reflow and vapor phase reflow) soldering methods of surface mounting technology (SMT) are studied for high quality and reliability hidden solder joint formation. Comparative evaluations of the voids percent, which are formed in the hidden solder joints, were carried using X-ray inspection and testing the mechanical strength...
In this work, variation of the main electrical parameters of flexible organic light-emitting diodes (FOLEDs) is studied as a function of the thermal conditions. Tested structures are consisted of polyethylene terephthalate (PET) as a flexible substrate, indium-tin oxide transparent conductive anodes, polyphenylene vinylene derivative based emissive films and aluminum cathodes. Thermal degradation...
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.