黑料不打烊

艩iame bakalauro darbe pristatomas i拧mani懦j懦 laikysenos analiz臈s ir korekcijos 寞ranki懦 projektavimas ir k奴rimas. Darb膮 sudaro 5 dalys. Teorin臈je dalyje ap啪velgiamos esamos laikysenos analiz臈s sistemos, judesi懦 sekimo technologijos ir korekcinio gr寞啪tamojo ry拧io metodai, naudojami reabilitacijoje ir sporte. Analizuotos esamos video ir jutiklin臈s k奴no pad臈ties atpa啪inimo sistemos, siekiant pagr寞sti kuriam膮 in啪inerin寞 sprendim膮. Projektavimo dalyje pristatomas i拧maniosios laikysenos analiz臈s ir korekcijos sistemos pagrindin臈s funkcin臈s dalys 鈥濷rbbec Gemini 2 RGB-D鈥� kamera, 鈥濵ediaPipe鈥� pozos orientyr懦 aptikimo ir Savitzky-Golay filtravimo metodai s膮nari懦 kampo vertinimui realiuoju laiku. Sukurtas k奴no pad臈ties korekcijos prototipas apima PLA rankos atram膮, skirt膮 alk奴n臈s pad臈膷iai valdyti atliekant krep拧inio baud懦 metimus ir teikti korekcin寞 gr寞啪tam膮j寞 ry拧寞. Sukurtos bendrosios sistemos ir jos konstrukcini懦 komponent懦 technin臈s charakteristikos. Tyrimo dalyje sukurtas k奴no pad臈ties analiz臈s prototipas 寞vertinamas naudojant biomechanin臋 analiz臋 ir judesio fiksavimo matavimus, atliktus naudojant inercini懦 jutikli懦 鈥瀀sens MVN Awinda鈥� sistem膮. Gauti rezultatai patvirtino, kad sukurta sistema tinka laikysenos atpa啪inimui ir korekciniam gr寞啪tamajam ry拧iui krep拧inio baud懦 metim懦 metu. Technologin臈je dalyje apibr臈啪iamas PLA rankos atramos gamybos mar拧rutas, 寞skaitant 3D modeliavim膮, adityvin臋 gamyb膮 ir papildomo apdorojimo operacijas. Darbo saugos dalyje parengiami elektros, mechanikos ir programin臈s 寞rangos saugos reikalavimai pagal taikomus ES standartus. Taip pat pateikiami ekonominiai skai膷iavimai ir i拧vados. Baigiamasis bakalauro darbas susideda i拧 46 puslapi懦 teksto be pried懦, 23 paveiksl懦, 20 lenteli懦 ir 30 bibliografini懦 拧altini懦. Grafin臋 dal寞, atlikt膮 naudojant 鈥濻OLIDWORKS鈥� (25 versija), sudaro sistemos bendro vaizdo br臈啪inys (A1), funkcin臈 blokin臈 schema ir gr寞啪tamojo ry拧io sistemos integravimo schema (A1), rezultat懦 寞vertinimo ir ekonomin臈s analiz臈s pristatymas (A1) bei technologinis mar拧rutas (A1). Pridedami priedai.

This bachelor thesis presents the design and development of intelligent tools for posture analysis and correction. It consists of 5 parts. The theoretical part reviews existing posture analysis systems, motion tracking technologies, and corrective feedback methods used in rehabilitation and sports applications. Existing camera-based and sensor-based systems are analyzed to justify the proposed engineering solution. The design part presents the development of an intelligent posture analysis and correction system integrating an Orbbec Gemini 2 RGB-D camera, MediaPipe pose landmark detection, and a Savitzky-Golay filtering method for real-time joint angle evaluation. The developed posture correction prototype includes a PLA arm support designed to guide elbow positioning during basketball free-throw execution and provide corrective feedback. General technical characteristics of the system and its structural components are developed. The research section evaluates the developed prototype using biomechanical analysis and motion capture measurements performed with the IMU Xsens MVN Awinda system. The obtained results confirmed that the developed system is suitable for posture recognition and corrective feedback during basketball free-throw movements. The technological part defines the manufacturing route for the PLA arm support, including 3D modelling, additive manufacturing, and post-processing operations. The work safety part prepares electrical, mechanical, and software safety requirements in accordance with applicable EU standards. Economic calculations and conclusions are also presented. The final bachelor鈥檚 project consists of 46 pages of text without appendices, 23 figures, 20 tables, and 30 bibliographical sources. The graphical part made with SOLIDWORKS (version 25) consists of a system general view drawing (A1), functional block diagram and feedback system integration scheme (A1), result evaluation and economic analysis presentation (A1), and technological route with detailed component drawings (A1). Appendices are included.

艩iame baigiamajame darbe nagrin臈jamas pagalbin臈s atsistojimo i拧 s臈dimos pad臈ties sistemos su biomechaniniu gr寞啪tamuoju valdymu k奴rimas. Pagrindinis darbo tikslas 鈥� suprojektuoti varikliais valdom膮 atramin寞 寞rengin寞, kuris pad臈t懦 naudotojui pereiti i拧 s臈dimos 寞 stovim膮 pad臈t寞, kartu i拧laikant aktyv懦 naudotojo dalyvavim膮 judesyje. Literat奴ros ap啪valgoje analizuojama atsistojimo i拧 s臈dimos pad臈ties biomechanika, esami patentai, komerciniai analogai ir pagrindin臈s in啪inerin臈s spragos dabartiniuose pagalbiniuose 寞renginiuose. Projektin臈je dalyje pateikiama mechanin臈 konstrukcija, pavar懦 parinkimas, jutikli懦 i拧d臈stymas, valdymo sistema, stiprumo skai膷iavimai, stabilumo vertinimas ir energijos s膮naud懦 寞vertinimas. Technologin臈je dalyje apra拧omas pasirinktos kojos pagrindo detal臈s gamybos mar拧rutas ir apdirbimo parametrai. Ekonomin臈je dalyje 寞vertinamos med啪iag懦, gamybos, prid臈tin臈s, pastoviosios ir bendrosios gamybos s膮naudos, taip pat ma啪os serijos gamyba ir l奴啪io ta拧ko analiz臈. Darbo saugos dalyje nustatomos pagrindin臈s mechanin臈s, elektrin臈s, valdymo ir technin臈s prie啪i奴ros rizikos, susijusios su 寞renginio naudojimu. Galutiniame projekte naudojamos keturios linijin臈s pavaros, rankenose integruoti j臈gos jutikliai, Holo efekto pavar懦 gr寞啪tamasis ry拧ys, fiksuojami ratukai ir 寞kraunama baterij懦 sistema, leid啪ianti u啪tikrinti pasyv懦, dalin寞 ir adaptyv懦 palaikym膮 atsistojimo i拧 s臈dimos pad臈ties metu.

This thesis focuses on the development of an assistive sit-to-stand system with biomechanical feedback control. The main objective of the work is to design a powered support device that helps users move from a seated to a standing position while keeping the user actively involved in the movement. The literature review analyses sit-to-stand biomechanics, existing patents, commercial analogues, and the main engineering gaps in current assistive devices. The design part presents the mechanical structure, actuator selection, sensor placement, control system, strength calculations, stability evaluation, and energy consumption estimation. The technological part describes the manufacturing route and machining parameters for the selected leg base component. The economic part estimates the material, manufacturing, overhead, fixed, and total production costs, including small-batch production and break-even analysis. The work safety section identifies the main mechanical, electrical, control, and maintenance risks related to the device. The final design uses four linear actuators, force sensors in the handles, Hall-effect actuator feedback, lockable castors, and a rechargeable battery system to provide passive, partial, and adaptive assistance during sit-to-stand movement.

Baigiamajame bakalauro darbe projektuojama pasyvi 膷iurnos s膮nario mobilumo reabilitacijos sistema. Atlikus analog懦 ir patent懦 analiz臋, suprojektuota 寞renginio konstrukcija bei parinkti pagrindiniai mechaniniai komponentai ir med啪iagos. Naudojant ,,SolidWorks鈥� programin寞 paket膮 sukurtas 寞renginio trimatis modelis ir atlikta pasirinkto mazgo stiprumo analiz臈 baigtini懦 element懦 metodu. Taip pat atlikti konstrukciniai ir technologiniai skai膷iavimai, sudarytas veleno stebul臈s gamybos technologinis mar拧rutas. Darbe nurodyti 寞reginio saugos reikalavimai, atlikta ekonomin臈 analiz臈 ir pateiktos i拧vados. Taip pat sudaryti 4 A1 formato br臈啪iniai: 膷iurnos reabilitacijos 寞renginio bendro vaizdo br臈啪inys, surinkimo br臈啪inys, technologinio mar拧ruto br臈啪inys, detaliruot臈. Baigiam膮j寞 darb膮 sudaro 8 dalys: 寞vadas, teorin臈 dalis, konstrukcin臈 dalis, technologin臈 dalis, saugos reikalavimai, ekonomin臈 dalis, i拧vados ir literat奴ros s膮ra拧as. Darbo apimtis 鈥� 58 puslapiai teksto be pried懦, 18 iliustracij懦, 16 lenteli懦, 25 bibliografiniai 拧altiniai.

In the final bachelor鈥檚 thesis, a passive ankle joint mobility rehabilitation device was designed. After conducting an analysis of existing analogs and patents, the device structure was designed, and the main mechanical components and materials were selected. Using the 鈥淪olidWorks鈥� software package, a three-dimensional model of the device was created, and a strength analysis of the selected assembly was performed using the finite element method (FEM). Structural and technological calculations were also carried out, and a technological manufacturing route for the shaft hub was developed. The thesis specifies the safety requirements of the device, presents an economic analysis, and provides conclusions. In addition, 4 A1 format drawings were prepared: a general view drawing of the ankle rehabilitation device, an assembly drawing, a technological route drawing, and a detail drawing. Thesis consists of 8 chapters: introduction, theoretical part, constructional part, technological part, safety requirements, economic part, conclusions, and references. The total length of the thesis is 58 pages of text without appendices, 18 figures, 16 tables, and 25 bibliographical references.

艩io magistro darbo tikslas 鈥� sukurti ir charakterizuoti elektroverpimo b奴du pagamintus poli(pieno r奴g拧ties)/poli(glikolio r奴g拧ties) (PLA/PGA) karkasus, skirtus odos rekonstrukcijos taikymams. Buvo atlikta mokslin臈s literat奴ros, susijusios su audini懦 in啪inerijos karkasais, biologi拧kai skaid啪iais polimerais ir elektroverpimo technologijomis, analiz臈. Eksperimentinio tyrimo metu buvo gaminami nanoplau拧iniai karkasai naudojant elektroverpimo metod膮 bei vertinamos j懦 fizikin臈s, mechanin臈s ir degradacijos savyb臈s. PLA/PGA karkasai buvo gaminami naudojant 鈥濻pinbox鈥� elektroverpimo sistem膮. Karkas懦 morfologija buvo tiriama skenuojan膷iu elektroniniu mikroskopu (SEM), storis matuotas indikaciniu storama膷iu. Poringumas nustatytas skys膷io i拧st奴mimo metodu, o pavir拧iaus dr臈kinamumas vertintas pagal vandens kontakto kampo matavimus. Mechanin臈s savyb臈s buvo nustatytos tempimo bandymais. Biodegradacijos elgsena tirta 14 dien懦 laikotarpiu stebint pH poky膷ius ir mas臈s suma啪臈jim膮 distiliuotame vandenyje. Tyrimo rezultatai parod臈, kad elektroverpimo b奴du pagaminti PLA/PGA karkasai pasi啪ymi tarpusavyje sujungta por臈ta strukt奴ra, vidutiniu hidrofiliskumu, tinkamomis tempimo savyb臈mis ir palaipsne biodegradacija. 艩ios savyb臈s rodo PLA/PGA karkas懦 potencial膮 odos audini懦 in啪inerijos taikymuose. Darba sudaro 寞vadas, literat奴ros ap啪valga, tyrimo metodika, tyrimo rezultatai, diskusija, i拧vados ir literat奴ros s膮ra拧as.

The aim of this master鈥檚 thesis is to develop and characterize electrospun poly(lactic acid)/poly(glycolic acid) (PLA/PGA) scaffolds for skin reconstruction applications. Scientific literature related to tissue engineering scaffolds, biodegradable polymers, and electrospinning techniques was reviewed. An experimental study was conducted to fabricate nanofibrous scaffolds using the electrospinning method and to evaluate their physical, mechanical, and degradation properties. PLA/PGA scaffolds were fabricated using the Spinbox electrospinning system. The scaffolds were characterized by scanning electron microscopy (SEM) to analyze morphology, and their thickness was measured using a dial thickness gauge. Porosity was determined by the liquid displacement method, and wettability was evaluated by water contact angle measurements. Mechanical properties were assessed by tensile testing. Biodegradation behavior was investigated over a 14-day period by monitoring pH changes and mass loss in distilled water. The results showed that the electrospun PLA/PGA scaffolds had interconnected porous structures, moderate hydrophilicity, suitable tensile properties, and gradual biodegradation. These properties indicate the potential of PLA/PGA scaffolds for skin tissue engineering applications. The thesis consists of introduction, literature review, research methodology, research results, discussion, conclusions, and references.

Baigiamajame magistro darbe nagrin臈jama fizini懦 pratim懦 geimifikacijos sistemos, pagr寞stos inercini懦 matavimo jutikli懦 (IMU) duomenimis, k奴rimo ir biomechaninio vertinimo problema. Darbe analizuojami fizinio aktyvumo vertinimo metodai, geimifikacijos sprendimai, 啪mogaus veikl懦 atpa啪inimo metodai bei judesio sekimo technologijos. Nustatyta, kad dauguma esam懦 sistem懦 orientuojasi 寞 veiklos atpa啪inim膮 arba kiekybini懦 aktyvumo rodikli懦 registravim膮, ta膷iau ribotai vertina judesi懦 atlikimo kokyb臋 biomechaniniu po啪i奴riu. Tyrimo metu sukurta realaus laiko fizini懦 pratim懦 geimifikacijos sistema, integruojanti IMU pagrindu veikian膷i膮 judesio sekimo sistem膮, biomechanini懦 parametr懦 analiz臋 ir interaktyv懦 gr寞啪tam膮j寞 ry拧寞. Sistemoje taikomi signal懦 glodinimo, slenkstinio filtravimo, b奴sen懦 sekimo ir laiko stabilizavimo metodai, skirti suma啪inti matavimo triuk拧mo, jutikli懦 dreifo ir klaiding懦 aktyvacij懦 寞tak膮. Judesi懦 analiz臈 realizuota 鈥濽nity鈥� aplinkoje naudojant virtual懦 skeleto model寞 ir realiuoju laiku apskai膷iuojamus kinematinius parametrus. Eksperimentinio pilotinio tyrimo metu buvo vertinamas sistemos geb臈jimas aptikti pasirinktus judesi懦 寞vykius ir diferencijuoti judesius pagal j懦 amplitud臋 bei atlikimo kokyb臋. Tyrime dalyvavo penki tiriamieji. Nustatyta, kad biomechani拧kai pakankami judesiai buvo registruojami nuosekliai, o ma啪os amplitud臈s judesiai da啪niausiai neaktyvavo sistemos. Taip pat steb臈ta tendencija, kad kartojant bandymus ma啪臈jo klaid懦 skai膷ius, did臈jo s臈kming懦 bandym懦 dalis ir ger臈jo biomechaniniai rodikliai. Gauti rezultatai parod臈, kad sistema gali b奴ti taikoma kaip pilotinis realaus laiko judesi懦 aptikimo ir gr寞啪tamojo ry拧io prototipas treniruo膷i懦, reabilitacijos ir mokymo sistemose. Darb膮 sudaro 7 dalys: 寞vadas, literat奴ros ap啪valga, tyrimo metodika, eksperimento rezultat懦 analiz臈, diskusija, i拧vados ir literat奴ros s膮ra拧as. Atskirai pateikiami darbo priedai. Darbo apimtis 鈥� 57 p. teksto be pried懦, 14 paveiksl懦, 12 lenteli懦, 32 literat奴ros 拧altiniai.

This master鈥檚 thesis investigates the development and biomechanical evaluation of a gamification system for physical exercises based on inertial measurement unit (IMU) data. The study analyzes physical activity assessment methods, gamification solutions, human activity recognition methods, and motion tracking technologies. It was found that most existing systems primarily focus on activity recognition or quantitative activity metrics, while providing limited evaluation of movement quality from a biomechanical perspective. During the research, a real-time physical exercise gamification system was developed, integrating IMU-based motion tracking, biomechanical parameter analysis, and interactive feedback. The system applies signal smoothing, threshold filtering, state tracking, and temporal stabilization methods to reduce the effects of measurement noise, sensor drift, and false activations. Movement analysis was implemented in the 鈥淯nity鈥� environment using a virtual skeletal model and real-time kinematic parameter calculation. An experimental pilot study involving five participants was conducted to evaluate the system鈥檚 ability to detect selected movement events and differentiate movements according to their amplitude and execution quality. The results showed that biomechanically sufficient movements were detected consistently, while low-amplitude movements generally did not activate the system. Repeated trials also demonstrated fewer errors, a higher proportion of successful attempts, and improved biomechanical indicators. The obtained results indicate that the developed system can serve as a pilot prototype for real-time movement detection and feedback in training, rehabilitation, and educational applications. The thesis consists of 7 chapters: introduction, literature review, research methodology, experimental results analysis, discussion, conclusions, and references. The thesis contains 57 pages excluding appendices, 14 figures, 12 tables, and 32 references. Appendices are provided separately.

Baigiamajame magistro darbe tiriama implant懦 pozicionavimo 寞taka implantais fiksuojam懦 i拧imam懦 dant懦 protez懦 biomechaniniam stabilumui, taikant baigtini懦 element懦 metod膮. Darbe analizuojamos skirtingos implant懦 lokalizacijos ir j懦 寞taka apkrov懦 pasiskirstymui protezo konstrukcijoje. Tyrimo metu 鈥濻olidWorks鈥� aplinkoje buvo sudaryti apatinio 啪andikaulio, implant懦, Locator sistemos ir i拧imamo protezo trima膷iai modeliai. Implantai buvo modeliuojami kand啪i懦, il膷i懦, kapli懦 bei il膷i懦 ir pirm懦j懦 kr奴mini懦 dant懦 srityse. Modeliai apkrauti 70 N vertikalia apkrova, taikant vienpusio, abipusio ir priekinio apkrovimo scenarijus. Analiz臈s metu vertinti von Mises 寞tempiai ir konstrukcij懦 poslinkiai. Rezultatai parod臈, kad implant懦 lokalizacija reik拧mingai veikia biomechanin寞 protezo stabilum膮. Did啪iausi 寞tempiai ir poslinkiai nustatyti dviej懦 implant懦 modeliuose vienpusio apkrovimo metu, ypa膷 implantus lokalizavus kand啪i懦 srityje. Keturi懦 implant懦 sistema pasi啪ym臈jo tolygesniu apkrov懦 pasiskirstymu ir geresniu biomechaniniu stabilumu. Darb膮 sudaro 7 dalys: 寞vadas, literat奴ros analiz臈, tyrimo metodika, eksperimento rezultat懦 analiz臈, diskusija ir literat奴ros s膮ra拧as. Darbo apimtis: 50 p. teksto be pried懦, 26 paveiksl懦, 11 lentel臈s ir 32 literat奴ros 拧altiniai.

This master鈥檚 thesis investigates the influence of implant positioning on the biomechanical stability of implant-supported removable dental prostheses using the finite element method. The study analyses different implant localization configurations and their effect on load distribution within the prosthetic structure. During the research, three-dimensional models of the mandible, implants, Locator attachment system, and removable prosthesis were developed in the 鈥淪olidWorks鈥� environment. Implants were positioned in the incisor, canine, premolar, and canine鈥揻irst molar regions. The models were loaded with a 70 N vertical force under unilateral, bilateral, and anterior loading scenarios. The analysis evaluated von Mises stresses and structural displacements.The results showed that implant localization significantly affects the biomechanical stability of the prosthesis. The highest stresses and displacements were observed in two-implant models under unilateral loading, especially when implants were positioned in the incisor region. The four-implant system demonstrated a more uniform load distribution and better overall biomechanical stability. The thesis consists of 7 parts: introduction, literature review, research methodology, experimental results analysis, discussion, and references. The thesis comprises 50 pages of text, 26 figures, 11 tables, and 32 references.

艩iame bakalauro baigiamajame darbe pateikiamas i拧maniosios pir拧tini懦 sistemos, skirtos gest懦 kalbos gestams versti 寞 kalb膮 realiuoju laiku, projektavimas ir gamyba. Si奴loma sistema paremta dviej懦 pir拧tini懦 konfig奴racija, kurioje d臈vimi jutikliai nustato pir拧t懦 lenkim膮 ir pla拧takos orientacij膮, o mikrovaldikliai apdoroja signalus ir u啪tikrina belaid寞 ry拧寞 tarp abiej懦 pir拧tini懦. Pagrindin臈 kairioji pir拧tin臈 valdo garso i拧vesties sistem膮, o antrin臈 de拧inioji pir拧tin臈 perduoda jutikli懦 duomenis pagrindinei pir拧tinei. Teorin臈je darbo dalyje analizuojami patentai, analogi拧kos sistemos ir moksliniai 拧altiniai, kuriais remiantis pagrind啪iama pasirinkta prototipo architekt奴ra. Projektin臈je dalyje pateikiama sistemos strukt奴ra, valdymo algoritmas, funkcin臈 blokin臈 schema, konstrukcini懦 med啪iag懦 ir standartini懦 komponent懦 parinkimas, pagrindini懦 parametr懦 skai膷iavimai, technin臈s specifikacijos ir sistemos funkcij懦 apra拧ymas. Technologin臈je dalyje apra拧omas nestandartinio komponento gamybos proceso mar拧rutas taikant 3D spausdinim膮. Taip pat parengti saugos reikalavimai ir ekonominiai si奴lomo prototipo rodikliai. Darbo rezultatas 鈥� kompakti拧kos ir nebrangios i拧maniosios pir拧tini懦 sistemos koncepcija, tinkama akademinio prototipo bandymams ir tolimesniam tobulinimui. Baigiam膮j寞 darb膮 sudaro 73 puslapis, 10 paveiksl懦, 14 lenteli懦 ir 4 A1 formato br臈啪iniai.

This bachelor鈥檚 thesis presents the design and manufacturing of a smart glove system intended for real-time translation of sign language gestures into speech. The proposed system is based on a two-glove configuration, where wearable sensors detect finger bending and hand orientation, while microcontrollers process the signals and provide wireless communication between both gloves. The main left glove controls the voice output system, and the secondary right glove transmits sensor data to the main glove. The theoretical part includes an analysis of patents, analogous systems and scientific sources, which were used to justify the selected prototype architecture. The design part presents the system structure, control algorithm, functional block diagram, selection of structural materials and standard components, calculation of critical parameters, technical specifications and description of the system functions. The technological part describes the manufacturing process route of a non-standard component using 3D printing. In addition, safety requirements and economic indicators of the proposed prototype were prepared. The result of the work is a compact and low-cost smart glove system concept suitable for academic prototype testing and further development. The thesis consists of 73 pages, 10 figures, 14 tables, and 4 A1 drawings.

Baigiamajame magistro darbe tiriamos 3D spausdint懦 kaukol臈s implant懦 bei kiet膮j寞 smegen懦 dangal膮 imituojan膷i懦 nanopluo拧t懦 savyb臈s. Darbe i拧nagrin臈ta dabartin臈 kranioplastikos problematika, tradicini懦 metalini懦 ir polimerini懦 implant懦 tr奴kumai bei biosuderinam懦, biodegraduojan膷i懦 med啪iag懦 taikymas regeneracin臈je medicinoje. Tyrimo metu, naudojant SolidWorks program膮 ir baigtini懦 element懦 analiz臋 (BEM), atliktas individualiai suprojektuoto kaukol臈s implanto mechaninis modeliavimas. Analizuoti trys skirtingi med啪iag懦 variantai: PCL/HA (polikaprolaktonas su hidroksiapatitu), PCL/MC (polikaprolaktonas su mineralizuotu kolagenu) bei PEEK (polietereterketonas). Atliktos statin臈s (50 N) ir dinamin臈s (200N) sm奴gin臈s apkrovos simuliacijos, kuri懦 metu vertintas 寞tempi懦 pasiskirstymas ir saugumo koeficientas (FOS). Eksperimentin臈je dalyje, naudojant elektrinio verpimo technologij膮, pagaminti PCL/kolageno nanopluo拧to bandiniai, skirti kietojo smegen懦 dangalo regeneracijai. Atliktas pagamint懦 nanopluo拧t懦 vienaa拧is tempimo bandymas, nustatytos j懦 mechanin臈s savyb臈s: takumo riba, santykinis pailg臈jimas bei geb臈jimas atlaikyti apkrovas. Gauti rezultatai parod臈, kad PCL pagrindo biokompozitai u啪tikrina konstrukcin寞 stabilum膮 esant statin臈ms apkrovoms, ta膷iau dinaminio sm奴gio s膮lygomis j懦 atsparumas i拧lieka ribotas lyginant su PEEK. Nanopluo拧to bandymai patvirtino med啪iagos plasti拧kum膮 (pailg臈jimas iki 160 %), kas yra kriti拧kai svarbu kietojo smegen懦 dangalo pakaital懦 funkcionalumui. Rezultatai apibendrinti ir suformuluotos i拧vados d臈l tirt懦 med啪iag懦 tinkamumo kranialinei rekonstrukcijai. Darb膮 sudaro 7 dalys: 寞vadas, literat奴ros ap啪valga, tyrimo metodika, tyrim懦 rezultatai, diskusija, i拧vados, literat奴ros s膮ra拧as. Darbo apimtis: 59 p. teksto be pried懦, 17 paveiksl懦, 8 lentel臈s, 45 literat奴ros 拧altinis.

This Master鈥檚 thesis investigates the properties of 3D鈥損rinted cranial implants and nanofibers mimicking the dura mater. The study examines current issues in cranioplasty, the disadvantages of traditional metal and polymer implants, and the application of biocompatible, biodegradable materials in regenerative medicine. Mechanical modeling of an individually designed cranial implant was performed using SolidWorks software and Finite Element Analysis (FEA). Three different material options were analyzed: PCL/HA (polycaprolactone with hydroxyapatite), PCL/MC (polycaprolactone with mineralized collagen), and PEEK (polyetheretherketone). Static (50 N) and dynamic (200 N) impact load simulations were conducted to evaluate stress distribution and the factor of safety (FOS). In the experimental part, PCL/collagen nanofiber samples for dura mater regeneration were fabricated using electrospinning technology. Uniaxial tensile testing of the produced nanofibers was performed to determine their mechanical properties: yield strength, relative elongation, and load鈥揵earing capacity. The results showed that PCL鈥揵ased biocomposites ensure structural stability under static loads; however, their resistance under dynamic impact conditions remains limited compared to PEEK. Nanofiber testing confirmed the plasticity of the material (elongation up to 160%), which is critical for the functionality of dura mater substitutes. The results are summarized, and conclusions are formulated regarding the suitability of the studied materials for cranial reconstruction. The thesis consists of 7 parts: introduction, literature review, research methodology, research results, discussion, conclusions, and list of references. Scope of the thesis: 59 pages of text without appendices, 17 figures, 8 tables, 45 bibliographical sources.

Baigiamajame bakalauro darbe sprend啪iama rank懦 odos 办蝉别谤辞锄臈s profilaktikos ir gydymo problema 鈥� suprojektuota i拧manioji pir拧tin臈, skirta pa啪eistai 办蝉别谤辞锄臈s odai, integruojanti 拧velni膮 termo- ir vibroterapij膮. Remiantis moksline literat奴ra ir komerciniais analogais, suprojektuota pir拧tin臈s konstrukcija, parinkti komponentai ir med啪iagos: vidinis sluoksnis 鈥� medicininis silikonas ELASTOSIL庐 P 7683/25, 拧ildymo elementai, ERM tipo vibracijos varikliai, temperat奴ros ir dr臈gm臈s jutikliai. Atlikti konstrukciniai skai膷iavimai bei technologin臈 analiz臈. Duomen懦 perdavimas integruotas per Bluetooth modul寞 寞 vartotojo i拧man懦j寞 telefon膮, o mikroaplinkos steb臈jimas atliekamas per OLED ekran膮, esant寞 ant pir拧tin臈s valdymo bloko. Sudarytas pir拧tin臈s valdymo bloko technologinis mar拧rutas. Pateikti saugos reikalavimai bei atlikti ekonominiai skai膷iavimai. Darbo apimtis 鈥� 61 lapas, 18 paveiksl懦, 15 lenteli懦, 44 literat奴ros 拧altini懦, 4 A1 formato br臈啪iniai. Br臈啪iniai sudaryti naudojant 鈥濻olidWorks鈥� programin臋 寞rang膮.

This bachelor's thesis based on the treatment and prevention of hand skin xerosis and introduces a smart glove designed for xerosis-affected skin and which integrates gentle thermotherapy and vibrotherapy. The glove's construction has been designed based on scientific literature and commercial analogues selecting listed components and materials: inner layer - medical-grade silicone ELASTOSIL庐 P 7683/25, heating elements, ERM-type vibration motors, temperature and humidity sensor. Structural calculations and technological analysis were performed. Data transmission is integrated via a Bluetooth module to the user's smartphone, and microenvironment monitoring is performed via an OLED screen located on the glove control unit. A technological process flow for the glove's control unit has been developed. Safety requirements are presented and economic calculations have been performed.The scope of the thesis includes 61 pages of text, 18 figures, 15 tables, 44 references, and 4 A1 format drawings. The drawings have been created using SolidWorks software.

Baigiamajame magistro darbe tiriamas skirtingos geometrijos kraujagysli懦 stent懦 mechaninis atsakas ir geometrijos 寞taka j懦 patikimumui. I拧nagrin臈ta kraujagysli懦 stent懦 paskirtis, pagrindiniai tipai, naudojamos med啪iagos, periferini懦 kraujagysli懦 stentavimo ypatumai bei da啪niausios mechanin臈s komplikacijos, susijusios su deformacijomis, 寞tempi懦 koncentracijomis ir nuovargio pa啪aida. Ypatingas d臈mesys skirtas savaime i拧siple膷iantiems nitinolio stentams, taikomiems 拧launies pavir拧in臈s arterijos srityje. Tyrimo metu CAD aplinkoje sudaryti trij懦 skirting懦 geometrij懦 kraujagysli懦 stent懦 modeliai: open-cell tipo stentas, lazeriu i拧pjautas stentas ir pintas savaime i拧siple膷iantis periferinis stentas. Modeliai analizuoti taikant baigtini懦 element懦 metod膮, esant dviem apkrovimo scenarijams: 24 kPa vidiniam sl臈giui ir 1200 kPa padidintai apkrovai. Atlikus analiz臋 nustatyti von Mises ekvivalentini懦 寞tempi懦, bendr懦j懦 poslinki懦, ekvivalentini懦 deformacij懦 ir nuovargio ilgaam啪i拧kumo rodikliai. Gauti rezultatai parod臈, kad esant 24 kPa apkrovai vis懦 tirt懦 stent懦 mechaninis atsakas i拧lieka stabilus, o 寞tempiai, poslinkiai ir deformacijos yra nedideli. Padidinus apkrov膮 iki 1200kPa, i拧ry拧k臈jo konstrukcij懦 skirtumai: lazeriu i拧pjautas stentas pasi啪ym臈jo did啪iausiais 寞tempiais, poslinkiais ir ma啪iausiai palankiu nuovargio atsaku, open-cell stentas tapo lokaliai kriti拧kesnis, o pintas savaime i拧siple膷iantis periferinis stentas parod臈 tolygiausi膮 mechanini懦 rodikli懦 pasiskirstym膮 ir palankiausi膮 bendr膮 mechanin寞 atsak膮. Gauti rezultatai apibendrinti, suformuluotos i拧vados. Darb膮 sudaro 7 dalys: 寞vadas, literat奴ros ap啪valga, tyrimo metodika, tyrim懦 rezultatai, diskusija, analiz臈, i拧vados, literat奴ros s膮ra拧as. Darbo apimtis: 70 p. teksto be pried懦, 38 paveikslai, 4 lentel臈s ir literat奴ros 拧altini懦 s膮ra拧as.

This master鈥檚 thesis investigates the mechanical response of vascular stents with different geometries and the influence of geometry on their structural reliability. The thesis examines the purpose of vascular stents, their main types, materials used, specific features of peripheral vascular stenting, and the most common mechanical complications related to deformation, stress concentration, and fatigue damage. Particular attention is given to self-expanding nitinol stents used in the superficial femoral artery. During the study, three vascular stent models with different geometries were developed in a CAD environment: an open-cell stent, a laser-cut stent, and a braided self-expanding peripheral stent. The models were analysed using the finite element method under two loading scenarios: an internal pressure of 24kPa and an increased load of 1200kPa. The analysis determined the von Mises equivalent stress distribution, total displacement, equivalent strain, and fatigue life indicators. The results showed that under a load of 24kPa, the mechanical response of all investigated stents remained stable, while stresses, displacements, and strains were low. When the load was increased to 1200kPa, differences between the structures became more evident: the laser-cut stent exhibited the highest stresses and displacements, as well as the least favourable fatigue response; the open-cell stent became more locally critical; and the braided self-expanding peripheral stent demonstrated the most uniform distribution of mechanical parameters and the most favourable overall mechanical response. The obtained results were summarized, and conclusions were formulated. The thesis consists of 7 parts: introduction, literature review, research methodology, research results, discussion, analysis, conclusions, and references. The thesis comprises 70 pages of text excluding appendices, 38 figures, 4 tables, and references.