Search Results - "Hannu, Jari"

Microfluidic Microwave Sensor for Detecting Saline in Biological Range by Kilpijärvi, Joni, Halonen, Niina, Juuti, Jari, Hannu, Jari

“…A device for measuring biological small volume liquid samples in real time is appealing. One way to achieve this is by using a microwave sensor based on…”
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Soft and Stretchable Humidity‐Insensitive Thermoresistive Temperature Sensor with A Tensile Strain Modulated Sensitivity by Albeltagi, Ahmed, Tolvanen, Jarkko, Bhalerao, Sagar R., Hannu, Jari

“…Soft and stretchable electronics represents a high potential paradigm shift in field of electronics, for example, in applications related to solar cells,…”
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All‐Around Universal and Photoelastic Self‐Healing Elastomer with High Toughness and Resilience by Tolvanen, Jarkko, Nelo, Mikko, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…Ultimately soft electronics seek affordable and high mechanical performance universal self‐healing materials that can autonomously heal in harsh environments…”
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Lightweight porous silica foams with extreme-low dielectric permittivity and loss for future 6G wireless communication technologies by Pálvölgyi, Petra S., Sebők, Daniel, Szenti, Imre, Bozo, Eva, Ervasti, Henri, Pitkänen, Olli, Hannu, Jari, Jantunen, Heli, Leinonen, Marko E., Myllymäki, Sami, Kukovecz, Akos, Kordas, Krisztian

“…In the next generation wireless communication systems operating at near terahertz frequencies, dielectric substrates with the lowest possible permittivity and…”
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Piezoelectric Flexible LCP–PZT Composites for Sensor Applications at Elevated Temperatures by Tolvanen, Jarkko, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…In this paper fabrication of piezoelectric ceramic–polymer composites is demonstrated via filament extrusion enabling cost-efficient large-scale production of…”
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Application of Multilayered Blend Films as Soft, Stretchable, Self‐Adhesive, and Self‐Healing Absorption‐Dominant EMI Shielding and Microwave Absorber by Tolvanen, Jarkko, Nelo, Mikko, Alasmäki, Heidi, Pitkänen, Olli, Vahera, Timo, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…Solution‐processable organic conductor–supramolecular elastomer blends are emerging materials for intrinsically stretchable and autonomously self‐healing…”
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Ultraelastic and High‐Conductivity Multiphase Conductor with Universally Autonomous Self‐Healing by Tolvanen, Jarkko, Nelo, Mikko, Alasmäki, Heidi, Siponkoski, Tuomo, Mäkelä, Piia, Vahera, Timo, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…Next‐generation, truly soft, and stretchable electronic circuits with material level self‐healing functionality require high‐performance solution‐processable…”
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Aging in epitaxial ferroelectric PbTiO3 films by Hannu, Jari, Peräntie, Jani, Stratulat, Sergiu Mihai, Jantunen, Heli, Tyunina, Marina

“…Ability of epitaxial perovskite oxide ferroelectric films to maintain a poled polarization state on a long-term scale is crucial for advanced devices employing…”
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Stretchable and Washable Strain Sensor Based on Cracking Structure for Human Motion Monitoring by Tolvanen, Jarkko, Hannu, Jari, Jantunen, Heli

“…Stretchable and wearable strain sensors have been intensively studied in recent years for applications in human motion monitoring. However, achieving a…”
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Biodegradable multiphase poly(lactic acid)/biochar/graphite composites for electromagnetic interference shielding by Tolvanen, Jarkko, Hannu, Jari, Hietala, Maiju, Kordas, Krisztian, Jantunen, Heli

“…High performance electromagnetic interference (EMI) shielding materials that are of lightweight, thin, and easy-to-design are extremely important for future…”
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Hybrid Foam Pressure Sensor Utilizing Piezoresistive and Capacitive Sensing Mechanisms by Tolvanen, Jarkko, Hannu, Jari, Jantunen, Heli

“…The development of flexible and stretchable sensing for future applications, e.g., strain, force, and pressure, requires novel foam and foam-like structures…”
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Lightweight Hierarchical Carbon Nanocomposites with Highly Efficient and Tunable Electromagnetic Interference Shielding Properties by Pitkänen, Olli, Tolvanen, Jarkko, Szenti, Imre, Kukovecz, Ákos, Hannu, Jari, Jantunen, Heli, Kordas, Krisztian

“…High-performance electromagnetic interference shielding is becoming vital for the next generation of telecommunication and sensor devices among which portable…”
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Dry deposited single-walled carbon nanotubes co-assisted with copper redox mediator-based electrolytes for photo-stability of dye-sensitized solar cells by Khazraei, Sepideh, Mikladal, Bjørn Fridur, Etula, Jarkko, Varjos, Ilkka, Hannu, Jari

“…•Cost-effective dry deposited single-walled carbon nanotubes (SWCNTs) as counter electrode material.•SWCNTs layer reduced remarkably electrochemical impedance…”
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Stretchable Sensors with Tunability and Single Stimuli-Responsiveness through Resistivity Switching Under Compressive Stress by Tolvanen, Jarkko, Kilpijärvi, Joni, Pitkänen, Olli, Hannu, Jari, Jantunen, Heli

“…The fascinating human somatosensory system with its complex structure is composed of numerous sensory receptors possessing distinct responsiveness to stimuli…”
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A Non-Invasive Method for Hydration Status Measurement With a Microwave Sensor Using Skin Phantoms by Kilpijarvi, Joni, Tolvanen, Jarrkko, Juuti, Jari, Halonen, Niina, Hannu, Jari

“…Fluid balance is important for a healthy human being. In this paper, a method to measure hydration status was developed and tested towards non-invasive…”
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Energy harvesting with a cymbal type piezoelectric transducer from low frequency compression by Palosaari, Jaakko, Leinonen, Mikko, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…In this paper a piezoelectric energy harvester based on a Cymbal type structure is presented. A piezoelectric disc ∅35 mm was confined between two convex steel…”
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Smart mask – Wearable IoT solution for improved protection and personal health by Hyysalo, Jarkko, Dasanayake, Sandun, Hannu, Jari, Schuss, Christian, Rajanen, Mikko, Leppänen, Teemu, Doermann, David, Sauvola, Jaakko

“…The use of face masks is an important way to fight the COVID-19 pandemic. In this paper, we envision the Smart Mask, an IoT supported platform and ecosystem…”
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All‐Around Universal and Photoelastic Self‐Healing Elastomer with High Toughness and Resilience (Adv. Sci. 24/2021) by Tolvanen, Jarkko, Nelo, Mikko, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…Self‐Healing Elastomers Soft electronics seek all‐around high mechanical performance universal self‐healing elastomers. In article number 2103235, Jarkko…”
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Ultraelastic and High‐Conductivity Multiphase Conductor with Universally Autonomous Self‐Healing (Adv. Sci. 36/2022) by Tolvanen, Jarkko, Nelo, Mikko, Alasmäki, Heidi, Siponkoski, Tuomo, Mäkelä, Piia, Vahera, Timo, Hannu, Jari, Juuti, Jari, Jantunen, Heli

“…Organic Conductors Achieving excellent electrical, mechanical, and self‐healing properties with soft conductor has been challenging so far. In article number…”
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RF measurements to pinpoint defects in inkjet-printed, thermally and mechanically stressed coplanar waveguides by Myllymäki, Sami, Putaala, Jussi, Hannu, Jari, Kunnari, Esa, Mäntysalo, Matti

“…In this work 10-GHz-band RF measurement and microscopy characterizations were performed on thermally and mechanically long-term-stressed coplanar waveguides…”
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