Innovative Management and Implementation of Applied Research Project “Green Cost-Efficient Package Selection”

Cost-effectiveness is one of main criterions of innovation. In the current research, the generic mechanisms of university-enterprise collaborative project realization are included, which can be used to introduce the fresh ideas to industry. Such projects are useful for both partners: enterprise and university. Professors receive applied research projects experience and can publish the results of research, the students, involved in the project, can use received knowledge in their master or bachelor theses, and enterprises can employ new and active engineers. The aim of the project was to develop the green cost-efficient package for electronics industry, which should replace the previously used package. The target of this chapter is to bring the project team experience to the broader audience, who can successfully apply it for similar research project management and practical implementation. Today, the companies frequently use expensive package, which exceeds required quality specifications. That means the quality standards used by the company have too high requirements for the product types that package should protect. Purpose of current research project was to reduce the total cost of the packaging process and to select the environmentally friendly materials. Research team has elaborated the methodology for assessment of possible package variants

Luminescence properties of Er3+\mathrm{Er^{3+}} doped zirconia thin films and ZrO2/Er2O3\mathrm{ZrO_2/Er_2O_3} nanolaminates grown by atomic layer deposition

Atomic layer deposited (ALD) ZrO$_2$ (zirconia) thin films doped with Er$^3+$ ions by ion implantation as well as ZrO$_2$/Er$_2$O$_3$ nanolaminates were investigated at wide 5–300 K temperature range using cathodoluminescence (CL) and photoluminescence (PL) spectroscopy under wide range of excitation energies 6–120 eV. In the studied ALD films main emissions due to self-trapped excitons and defect centers were revealed in UV-visible (VIS) region with the excitation bands in the host absorption. In nanolaminates luminescence processes are influenced by their structure and composition. In films with the lower Er$^3+$ ion content, typical 4f luminescence of Er$^3+$ ions were identified being excited through energy transfer from host to doping ions. The luminescence data shows that in contrast to a few hundred nm thick ALD films, the excitonic band near 5.3–5.4 eV are absent in the excitation spectra of nanolaminates with a typical layer thickness of 5 nm, which do not facilitate exciton formation because of limited spatial regularity

Dataset of air ion and aerosol measurements. Tahkuse 2004-2014

The present dataset of air ion mobility and aerosol particle size distributions is a follow-up of the dataset Tahkuse_1993_1994, http://datadoi.ut.ee/handle/33/22. It makes available results of routine measurements in Tahkuse Air Monitoring Station from 01.01.2004 to 31.12.2014. The station is located in the Sepa farmhouse in Tahkuse village about 27 km northeast of the city of Pärnu, Estonia. Geographical coordinates are 58º31'28"N, 24º55'32"E, 24 m a.s.l. The farmhouse is surrounded with flat open landscape with some tree groups, grassland and agricultural land. The level of air pollution is typical for atmospheric air at a sparsely populated rural area. The dataset includes results of simultaneous measurements of positive and negative air ions and neutral aerosol particles. The small air ions are charged molecules and clusters up to 1.6 nm, the intermediate and large air ions are charged fine aerosol particles of size 1.6 – 70 nm. The air ion spectrometers are the same as used in Tahkuse during 1993 – 1994. Important upgrades of the instrumentation are taking into use the aerosol particle size spectrometer EAS and the AlphaGUARD radon monitor. The spectrometers are installed in the attic of the building. The air intake is at a height of 5 m above the ground. The continued measurements of wind speed, wind direction, air temperature, relative humidity, and concentration of NO2 are complemented with measurements of air pressure, sun radiation and radon activity concentration. The detailed description of the landscape, station, and instruments is presented in the thesis by Hõrrak, U. (2001) Air ion mobility spectrum at a rural area, https://dspace.ut.ee/handle/10062/50218. The measurements are saved into 11 yearly files as a tab-separated ANSI text. The zip-package of files should be downloaded from the present website, unpacked and operated in the personal computer of the scientist. The data can be immediately opened and analyzed using MS Excel as well as by means of different computer programs, which are able to process the ANSI text. Every file consists of a table with 114 columns and 8761 or 8785 rows. The columns correspond to variables and rows to measurement hours. The data are written without omissions for 24 hours per day even when the measurements were stopped or failed and the values of variables are unknown. The missing values are marked with the code –99. The data is accompanied with an instruction for the user Tahkuse_data_2004–2014_guide.pdf and a presentation of data preparation algorithms Tahkuse_data_2004–2014_supplement.pdf. The authors acknowledge Aadu Mirme for great work designing the original instrumentation