Nowadays there are many CAD system used in garment industry, but only few systems are used to compose measurement schemas. Only the biggest companies like well known “Gerber technology”, “Lectra system”, “Richpeace” could offer such kind of systems. Unfortunately, these systems are quite complicated, expensive and could only be used with the CAD system from the same creators. This is the reason why many companies are not capable of buying a full CAD system besides there are no possibilities to buy a system to compose garment products measurement schemas separately. So, naturally, there comes a demand for a less complicated and cheaper system. The main objective of this project was to create less complicated garment products measurement schemas composing system, which includes features of a large system and also avoids its defects. An analysis of existing garment products’ measurement schemas software and customers’ needs was made in this work. “Clothing models measuring scheme composition system” software was created as an outcome of this work. The project was programmed with JAVA programming language. Therefore it can be used on the different operating systems. The system was successfully installed and tested in the UAB “Vivat Modus” company. In short period of time this company has seen the great propose of system. People who were using the new system to create garment products’ measurement schemas have saved their time and made less mistakes. The system helped to save... [to full text]

Darbo tikslas - ištirti egzistuojančius pralaidumo matavimo metodus, palyginti jau sukurtas programines jų realizacijas, ir pasinaudojus rezultatais, pateikti rekomendacijas jų praktiniam panaudojimui atskirose tinklų grupėse. Šis darbas apima pralaidumo metrikas, naudojamas kompiuterinio tinklo kokybei apibudinti bei kitas pralaidumo charakteristikas. Nagrinėjami teoriniai egzistuojančių matavimo algoritmų veikimo aspektai bei praktiškai tikrinamas programinės įrangos, paremtos šiais algoritmais, veikimas. Pateiktos rekomendacijos turėtų padėti kompiuterinių tinklų administratoriams bei vartotojams pasirinkti efektyviausius įrankius pralaidumo matavimui įvairių tipų tinkluose. / The purpose of this work is to make an individual research about existing methods used for network bandwidth measurement, and make practical recommendations regarding usability of these methods for users, accessing networks by different types of connections. This paper covers: important bandwidth metrics used to describe quality of network connections; different characteristics of bandwidth; theoretical approach to inner workings of existing bandwidth measurement algorithms, and practical testing of software implementing these methods. Recommendations, based on this work, should help network administrators and users to select most effective tools for measuring bandwidth in different types of networks.

Intensyvios konkurencijos kontekste mokslininkai ir praktikai diskutuoja apie prekės ženklo vertės matavimą. Prekės ženklo vertės matavimo teorinius ir empirinius tyrimus atlieka mokslininkai Aaker (1996), Keller (2003), Kapferer (1997) tačiau vieni iš jų daugiau akcentuoja ekonominius prekės ženklo vertės matavimo aspektus, kiti psichografinius ir vartotojų elgsena paremtus prekės ženklo vertės matavimo aspektus. Tačiau pasigendama mokslinių ir empirinių tyrimų, apjungiančių prekės ženklo vertės matavimą vartotojų elgsenos ir ekonominiu požiūriu. Todėl magistro darbe siekiama integruoti ekonominį ir vartotojų elgsena paremtą prekės ženklo vertės matavimą. Tai pagrindžia nagrinėjamos temos probleminį pobūdį. Darbo objektas - prekės ženklo vertės elementai. Darbo tikslas - teoriniu lygmeniu išanalizavus ir apibendrinus prekės ženklo vertės modelius, parengti integruotą prekės ženklo vertės matavimo modelį ir jį empiriškai pagrįsti “Toshiba” prekės ženklo pavyzdžiu. Darbo uždaviniai: • Atskleisti prekės ženklo vertės sampratą ir pagrįsti jos matavimo būtinumą; • Atlikti prekės ženklo vertės matavimo modelių teorinę analizę; • Parengti integruotą prekės ženklo vertės matavimo teorinį modelį; • Atlikti prekės ženklo vertės empirinį tyrimą ir empiriškai pagrįsti integruotą prekės ženklo vertės matavimo teorinį modelį “Toshiba” prekės ženklo pavyzdžiu. Tyrimo metodika. Rašant magistro darbą naudotasi mokslinės literatūros šaltinių, periodikos, virtualių duomenų bazių sisteminės ir... [toliau žr. visą tekstą] / This graduation paper researches the evaluating brand valuation methods. The aim of this graduation paper is to analyse on theoretical level and summarize brand valuation models, to formulate an integrated brand valuation evaluatind model and empirically validate it with “Toshiba” example. This identification of the aim of the paper has led to the following objectives of the study: • Find out brand value conception and substantiate evaluating necessity; • Analyze brand evaluation methods; • Formulate integrated brand evaluating theoretical model; • Perform an empirical research on brand valuation and validate empirically integrated evaluating brand valuation theoretical model with “Toshiba” brand example. The object of the research is the brand valuation elements. In order to achieve the stated aim and given objectives, the following methodology was selected: the analyses of scientific and periodical literature, systematical and comparable analyses of virtual database; qualitative and quantitative research methods: deep interview, questioning, linear and cross examination empirical research of the results. Part 1 discloses brand value conception. Brand value paternity and the strengthening implements are analysed in this part too. Part 2 discloses the necessity of evaluating brand value. In this part, are discussed the the models of brand evaluation and prepared integrated brand value evaluating theoretical model. Part 3 discloses the empirical research of consumers and... [to full text]

The task of the work is to investigate efficiency and effectiveness of measurement operations due to possibilities to select an optimal pitch of measurement and change it in-operation according to the newly developed algorithm or strategy of measurement. The task of the investigation would also be to present recommendations for measurements of planes or 3D measurements in machine engineering and instrumentation, geodesy and surveying, structure industry. The present work pursues the following objectives: • the analysis of the ways leading to the most cost-effective selection of planar and three-dimensional surface measurement tests; • the identification of optimal frequency in the tested space by determining the measurement discretization pitch and associating its value with the nature of the deviations measured; • cutting down the measurement time without any loss in deviations’ assessment accuracy by undertaking investigations into the effect of the nature of the deviation function upon the value of the discretization pitch as well as by developing new procedures and algorithms to cut down measurement time; • the submission of the recommendations how to reduce the number of measurement tests and ensure optimal measurement time in machine and instrument manufacture process, in construction and geodesy. The created integrally and differentially modified discretization methods make it possible to cut down the time of measurement of the object without any loss of quality of... [to full text]

The task of the work is to investigate efficiency and effectiveness of measurement operations due to possibilities to select an optimal pitch of measurement and change it in-operation according to the newly developed algorithm or strategy of measurement. The task of the investigation would also be to present recommendations for measurements of planes or 3D measurements in machine engineering and instrumentation, geodesy and surveying, structure industry. The present work pursues the following objectives: • the analysis of the ways leading to the most cost-effective selection of planar and three-dimensional surface measurement tests; • the identification of optimal frequency in the tested space by determining the measurement discretization pitch and associating its value with the nature of the deviations measured; • cutting down the measurement time without any loss in deviations’ assessment accuracy by undertaking investigations into the effect of the nature of the deviation function upon the value of the discretization pitch as well as by developing new procedures and algorithms to cut down measurement time; • the submission of the recommendations how to reduce the number of measurement tests and ensure optimal measurement time in machine and instrument manufacture process, in construction and geodesy. The created integrally and differentially modified discretization methods make it possible to cut down the time of measurement of the object without any loss of quality of... [to full text]

Šio darbo tyrimo tikslas – ištirti elektros energijos apskaitos prietaisų, indukcinių ir elektroninių, charakteristikas. Buvo atlikta informacijos šaltinių analizė apie indukcinių ir elektroninių elektros energijos skaitiklių ir srovės matavimo transformatorių parametrus, apsprendžiančius jų charakteristikas. Remiantis informacijos šaltinių apibendrinimu suformuota hipotezė: ne visos elektroninių elektros energijos prietaisų charakteristikos geresnės už indukcinių elektros energijos apskaitos prietaisų charakteristikas. Suformuoti tyrimo uždaviniai: ištirti elektroninių ir indukcinių elektros energijos prietaisų paklaidų priklausomybes nuo apkrovos srovės, galios koeficiento, eksploatacijos laiko, pasvyros kampo ir srovės matavimo transformatorių srovinės paklaidas. Padarytos išvados, nurodomas naudotos literatūros sąrašas. / The aim of this paper is to investigate the electricity metering devices, i.e. inductive and electronic, characteristics. It was made the analysis of the sources about the inductive and electricity meters and current transformers for measuring the parameters that define their characteristics. According to sources of information was formed the hypothesis: not all electronic power devices characteristics are better than inductive energy metering devices characteristics. The study objectives are to investigate experimentally the electronic and inductive power devices values of the load current, power factor, operating time, against an adverse list angle and current measuring transformer errors stream. Findings are discussed; the list of references is presented.

Šio darbo tikslas yra ištirti mažų koncentracijų matavimų vandeniniuose tirpaluose tikslumą, ypač monoizotopiniams elementams, taikant Element2 indukciniu būdu kuriamos plazmos masių spektrometrijos metodą, nustatyti pagrindines matavimų tikslumą ribojančias priežastis ir pabandyti sumažinti jų įtaką, įvertinti tokių matavimų taikymo galimybes medžiagų kilmės atpažinimui. / High resolution sector field ICP MS measurements of concentrations are widely used in modern analytical chemistry and applications. Two problems are concerned in the present work: improvement of accuracy of measurements of concentration of monoisotopic elements (As) and analysis of applicability of the multielement analytical data for classification of samples according to their origin. 66Zn, 77Se and 94Mo were used as internal standards to measure the concentration of As in water by the method of additions. Application of 77Se as internal standard resulted in the best accuracy of analysis. Drift of the measured signal ratios was identified as the main source of uncertainty limiting the accuracy of the mass fraction measurements at relative expanded uncertainty of 2% (k=2). The information as well as the level of inherent noise characterizes the quality of application of the multivariate analysis of multielement data for classification of samples. The role of noise increases if large number of parameters is needed. Stepwise approach is tested dividing the wine origin classification test into some steps to simplify the problem. Outcomes of the approach in comparison to the straightforward test are studied on the basis of the chemical analytical data obtained for 25 elements in 65 wines from 8 countries. Bivariate Gaussian distribution is used to evaluate the reproducibility of the discrimination between countries of origin and reliability of classification of the samples. In... [to full text]

Magistrantūros baigiamojo darbo tikslas yra išanalizuoti 3D lazerines matavimo sistemas, jų panaudojimą geodeziniams darbams ir palyginti su elektroniniu tacheometru. Atliekant tyrimą buvo panaudoti teoriniai bei praktiniai duomenys ir sisteminė analizė. Tyrimo objektas- stacionarus lazerinis skeneris Riegl LMS-Z420i. Pasirinktas prietaisas yra kol kas vienintelis toks Lietuvoje. Modernios technologijos su naujausiais techniniais sprendimais dėl savo produktyvumo gauna vis didesnę reikšmę geodezijoje. Todėl būtina žinoti jų veikimo principus ir panaudojimo galimybes. 3D lazerinės matavimų sistemos palyginti su elektroniniais tachometrais yra naujas dalykas. 3D lazerinės matavimų sistemos - tai įrenginiai, 3D skeneriai, kurie analizuoja realaus pasaulio objektą ir jo aplinką, siekiant surinkti duomenis apie jo formą ir jo išvaizdą (t.y. spalvą). Surinkti duomenys gali būti naudojami kurti skaitmeninius trimačius modeliu- tai informacija naudinga įvairioms programoms. Šie prietaisai yra plačiai naudojami topografiniuose darbuose, kalnakasyboje, fasadų matavimams, pastatų inventorizacijai, miestų modeliavimui. Taip pat ši technologija apima pramoninio dizaino, protezavimo, prototipų kūrimo, kokybės kontrolės tikrinimo funkcijas. Darbe išanalizuoti lazerinis skeneris Riegl LMS-Z420i, jo parametrai bei funkcijos, matavimo technologija ir palyginta matavimo sparta, tikslumas ir duomenų apdorojimas su elektroniniu tacheometru Sokkia set 5x. Atlikus palyginimą lazerinis skeneris... [toliau žr. visą tekstą] / Magister thesis is to analyze the 3D laser measurement systems, the use of geodetic work and compared with an electronic tachometer having. The study was theoretical and practical use of data and systematic analysis. The object of the stationary-laser scanner Riegl LMS-Z420i. The selected device is so far the only one in Lithuania. Modern technology with the latest technical solutions for its performance are receiving an increasing larger role in geodesy. Therefore, it is necessary to know the principles of operation and usability. 3D laser measurement system in relation to electronic tachometer is a new thing. 3D laser measurement system - a device, 3D scanners, which examines real-world object and its environment in order to collect data about its shape and its appearance (ie color). The data collected can be used to create digital three-dimensional model, this information is useful for various applications. These devices are widely used for topographical works, mining, facade measurements, building inventory, urban simulation. Also, this technology include industrial design, prosthetics, prototype development, quality control inspection functions. The paper analyzed a laser scanner Riegl LMS-Z420i, its parameters and functions, measurement techniques and compared the measurement speed, accuracy and data processing with an electronic tacheometer having Sokkia Set 5x. After a comparison of laser scanner Riegl LMS-Z420i has superior electronic tachometers Sokkia Set 5x.

Magistro darbe tiriami brandžių medynų tūrio nustatymo metodai. Medynų tūris nustatomas pagal : 1) atrankinio medžių matavimo metodo duomenis (miškotvarkos metu nustatytas medyno tūris), 2) ištisinio medžių matavimo nustatytą tūrį, 3) tūris nustatytas pagal pagamintą medienos produkciją (pridedant biologinės įvairovės bei sėklinių medžių tūrius, taip pat pridedant atliekas pagal „Medžių tūrio struktūros“ lenteles ). Darbo objektas - Tytuvėnų miškų urėdijos, Kelmės krašto IV miškų grupės brandūs medynai. Tikslas – įvertinti kertamų medynų likvidinės medienos tūrio nustatymo tikslumą ir pasitaikančių skirtumų priežastis. Darbo metodai – medienos tūrio paklaidų, gautų lyginant ištisinio medienos matavimo duomenis su miškotvarkos metu nustatytu tūriu ir pagamintos produkcijos duomenimis, analizė. Palyginti skirtingais metodais apskaičiuotą medienos tūrį. Darbo rezultatai: Įvertinus kertamų eglynų tūrį, pagal ištisinį medžių matavimo metodą, gauti rezultatai parodė, kad vidutinis medienos tūris yra 0,7 % didesnis lyginant su miškotvarkos duomenimis (atrankinis medžių matavimo metodas). Medynuose, pagal atskiras medžių rūšis, didžiausi skirtumai pušies 8,7 % ir liepos 8,2 % medžių tūriuose. Įvertinus Tytuvėnų miškų urėdijos brandžius medynus pagal ištisinį medžių matavimo metodą (etalonas) ir pagamintą medienos produkciją (pridedant biologinės įvairovės ir sėklinius medžius, pridedant atliekų tūrį) nustatyta, kad biržėse prikertama daugiau nei planuota, vidutiniškai 0,2 %... [toliau žr. visą tekstą] / In Master thesis investigate mature stand volume determination. Stands must be determined by: a) a selective method for measuring tree data (at the forest stand volume), 2) continuous measurement of the volume of trees, 3) the volume of manufactured wood products (by adding bio-diversity and tree seed volumes, as well as the addition of waste under "Medienos tūrio struktūros” tables.) Object of research - Tytuvėnai forest enterprises Kelmė region IV group mature trees. Aim of research - to assess crossed stand merchantable timber volume and accuracy in common reasons for the differences. Methods of research - the timber volume errors, obtained by comparing the continuous measurement of wood in the forest data set in the volume and output data analysis. Compare the different methods produce timber volume. Results of the research: The assessment of the spruce volume crossed by a continuous method of measuring the trees, the results showed that the average wood volume is 0.7 % higher compared with the forest data (selective tree method). Stands under different tree species, the largest differences between pine 8,7 % and lime 8,2 % tree volumes. The assessment of forest enterprises Tytuvėnai mature stands of trees under the continuous measurement method (standard) and made of wood products (by adding bio-diversity and tree seedling, plus the volume of waste) finds that cut down more than expected, on average 0.2% increase.

The problems of particulate matter air pollution were analyzed, statistical data about particulate matter pollution in the world and in Lithuania were presented, necessity of particulate matter concentration assessment in the air of Žirmūnai and Žvėrynas districts of Vilnius were described, the main aims and tasks of work were described in the final master work. The data of Lithuanian air quality stations were analyzed too, and it was assessed that Vilnius is one of the most particulate matter polluted Lithuanian cities. The biggest concentrations of this pollutant during analyzed period were fixed in the Žirmūnai and Žvėrynas air quality stations. The methodology of investigation of particulate matter concentration in the air of Žirmūnai and Žvėrynas districts was described; places of measurement points, operation of a real time monitor „Microdust pro“ were characterized and the results of recording were presented, too. The model of particulate matter carry in Žvėrynas district with the help of „Phoenics“ modelling programme was made. The data of investigation (results of recording particulate matter concentration) and calculated results were compared, conclusions and suggestions given. The work has 6 chapters: introduction, the ambient air pollution with particulate matter; investigation of particulate matter concentration in the air of Vilnius districts, mathematical modelling of particulate matter concentration in the air of Žvėrynas district, general conclusions and... [to full text]