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    • 0.6V threshold voltage thin film transistors with solution processable indium oxide (In2O3) Channel and Anodized High-κ Al2O3 Dielectric 

      Bhalerao, Sagar R.; Lupo, Donald; Zangiabadi, Amirali; Kymissis, Ioannis; Leppäniemi, Jaakko; Alastalo, Ari; Berger, Paul R. (01.07.2019)
      article
      Low-voltage operation and low processing temperature of metal oxide transistors remain a challenge. Commonly metal oxide transistors are fabricated at very high processing temperatures (above 500°C) and their operating ...

    • A 0.9-Nyquist-Band Digital Timing Mismatch Correction for Time-Interleaved ADCs Achieving Delay Tuning Range of 0.12-Sample-Period 

      Kempi, Ilia; Järvinen, Okko; Kosunen, Marko; Unnikrishnan, Vishnu; Stadius, Kari; Ryynänen, Jussi
      IEEE International Symposium on Circuits and Systems proceedings (IEEE, 2022)
      conferenceObject
      Time-interleaved analog-to-digital converters (TIADC) require channel matching in terms of offset, gain, and sampling clock skew to achieve best data conversion performance. Conventionally, correction of skew mismatch is ...

    • 1-D FEM-Based Approach for Extracting Dimension-Independent Material Properties of Mn-Zn Toroidal Ferrite Cores 

      Elkhadrawy, Reda; Panchal, Jay; Tarhasaari, Timo; Lahti, Kari; Rasilo, Paavo (2022)
      article
      This article presents a finite element (FE) method (FEM) based approach for identifying the dimension-independent magnetic and dielectric properties of Mn-Zn toroidal ferrite cores. Two 1-D axisymmetric FE models are ...

    • A 1-year follow-up study on immunological changes following deep brain stimulation in patients with epilepsy 

      Basnyat, Pabitra; Järvenpää, Soila; Raitanen, Jani; Pesu, Marko; Lehtimäki, Kai; Peltola, Jukka (06 / 2021)
      article
      The aim of this study was to evaluate the effects of deep brain stimulation of the anterior nucleus of the thalamus (ANT-DBS) on systemic inflammatory responses in patients with drug-resistant epilepsy (DRE). Twenty-two ...

    • 1.4 µm continuous-wave diamond Raman laser 

      Casula, Riccardo; Penttinen, Jussi-Pekka; Kemp, Alan J.; Guina, Mircea; Hastie, Jennifer E. (11.12.2017)
      article
      The longest wavelength (~1.4 µm) emitted by a diamond Raman laser pumped by a semiconductor disk laser (SDL) is reported. The output power of the intracavity-pumped Raman laser reached a maximum of 2.3 W with an optical ...

    • A 1.5-1.9-GHz all-digital tri-phasing transmitter with an integrated multilevel class-D power amplifier achieving 100-MHz RF bandwidth 

      Lemberg, Jerry; Martelius, Mikko; Roverato, Enrico; Antonov, Yury; Nieminen, Tero; Stadius, Kari; Anttila, Lauri; Valkama, Mikko; Kosunen, Marko; Ryynanen, Jussi (01.06.2019)
      article
      We present a prototype RF transmitter with an integrated multilevel class-D power amplifier (PA), implemented in 28-nm CMOS. The transmitter utilizes tri-phasing modulation, which combines three constant-envelope phase-modulated ...

    • 100 år av bildning och utbildning 

      Lindberg, Hanna (2022)
      article

    • The 1000 Mitoses Project : A Consensus-Based International Collaborative Study on Mitotic Figures Classification 

      Lin, Sherman; Tran, Christopher; Bandari, Ela; Romagnoli, Tommaso; Li, Yueyang; Chu, Michael; Amirthakatesan, Abinaya S.; Dallmann, Adam; Kostiukov, Andrii; Panizo, Angel; Hodgson, Anjelica; Laury, Anna R.; Polonia, Antonio; Stueck, Ashley E.; Menon, Aswathy A.; Morini, Aurélien; Özamrak, Birsen; Cooper, Caroline; Trinidad, Celestine Marie G.; Eisenlöffel, Christian; Suleiman, Dauda E.; Suster, David; Dorward, David A.; Aljufairi, Eman A.; Maclean, Fiona; Gul, Gulen; Sansano, Irene; Erana-Rojas, Irma E.; Machado, Isidro; Kholova, Ivana; Karunanithi, Jayanthi; Gibier, Jean Baptiste; Schulte, Jefree J.; Li, Joshua J.X.; Kini, Jyoti R.; Collins, Katrina; Galea, Laurence A.; Muller, Louis; Cima, Luca; Nova-Camacho, Luiz M.; Dabner, Marcus; Muscara, Matthew J.; Hanna, Matthew G.; Agoumi, Mehdi; Wiebe, Nicholas J.P.; Oswald, Nicola K.; Zahra, Nusrat; Folaranmi, Olaleke O.; Kravtsov, Oleksandr; Semerci, Orhan; Patil, Namrata N.; Muthusamy Sundar, Preethi; Charles, Prem; Kumaraswamy Rajeswaran, Priyadarshini; Zhang, Qi; van der Griend, Rachael; Pillappa, Raghavendra; Perret, Raul; Gonzalez, Raul S.; Reed, Robyn C.; Patil, Sachin; Jiang, Xiaoyin “Sara”; Qayoom, Sumaira; Prendeville, Susan; Baskota, Swikrity U.; Tran, Thanh Truc; San, Thar Htet; Kukkonen, Tiia Maria; Kendall, Timothy J.; Taskin, Toros; Rutland, Tristan; Manucha, Varsha; Cockenpot, Vincent; Rosen, Yale; Rodriguez-Velandia, Yessica P.; Ordulu, Zehra; Cecchini, Matthew J. (2024)
      article
      Introduction. The identification of mitotic figures is essential for the diagnosis, grading, and classification of various different tumors. Despite its importance, there is a paucity of literature reporting the consistency ...

    • 1180 nm GaInNAs quantum well based high power DBR laser diodes 

      Viheriälä, Jukka; Aho, Antti; Virtanen, Heikki; Koskinen, Mervi; Dumitrescu, Mihail; Guina, Mircea; Zediker, Mark S. (SPIE, 24.02.2017)
      conferenceObject
      We report state-of-the-art results for 1180nm (narrow linewidth) laser diodes based on GaInNAs quantum wells and show results for ridge waveguide DBR laser diode including its reliability tests. Manuscript demonstrates 500 ...

    • A 122Mb/s Turbo decoder using a mid-range GPU 

      Xianjun, Jiao; Canfeng, Chen; Jääskeläinen, Pekka; Guzma, Vladimir; Berg, Heikki
      International Wireless Communications and Mobile Computing Conference (Institute of Electrical and Electronics Engineers IEEE, 2013)
      conferenceObject
      Parallel implementations of Turbo decoding has been studied extensively. Traditionally, the number of parallel sub-decoders is limited to maintain acceptable code block error rate performance loss caused by the edge effect ...

    • 13.5 A 0.35-to-2.6GHz multilevel outphasing transmitter with a digital interpolating phase modulator enabling up to 400MHz instantaneous bandwidth 

      Kosunen, Marko; Lemberg, Jerry; Martelius, Mikko; Roverato, Enrico; Nieminen, Tero; Englund, Mikko; Stadius, Kari; Anttila, Lauri; Pallonen, Jorma; Valkama, Mikko; Ryynänen, Jussi (IEEE, 02.03.2017)
      conferenceObject
      Advanced wireless radio standards set stringent requirements on the bandwidth, frequency range and reconfigurability of base-station transmitters. Recently, the outphasing concept has shown promise of wide bandwidth while ...

    • 1337 nm Emission of a Nd3+-Doped TZA Glass Random Laser 

      Dipold, Jessica; Bordon, Camila D. S.; Magalhaes, Evellyn S.; Kassab, Luciana R. P.; Jimenez-Villar, Ernesto; Wetter, Niklaus U. (07 / 2023)
      article

    • 16S rRNA gene sequences of Candidatus Methylumidiphilus (Methylococcales), a putative methanotrophic genus in lakes and ponds 

      Rissanen, Antti; Buck, Moritz; Peura, Sari (27.01.2022)
      article

    • 1700 nm dispersion managed mode-locked bismuth fiber laser 

      Noronen, Teppo; Firstov, Sergei; Dianov, Evgeny; Okhotnikov, Oleg G. (21.04.2016)
      article
      We demonstrate the first 1.7 μm bismuth-doped fiber laser generating ultrashort pulses via passive mode-locking. Pulse operation has been achieved for both anomalous and normal dispersion of the laser cavity owing to ...

    • An 18–28 GHz dual-mode down-converter IC for 5G applications 

      Naghavi, Saeed; Ryynänen, Kaisa; Zahra, Mahwish; Korsman, Aleksi; Stadius, Kari; Kosunen, Marko; Unnikrishnan, Vishnu; Anttila, Lauri; Valkama, Mikko; Ryynänen, Jussi (02 / 2024)
      article
      Emerging spectrum trends require a higher integration of 5G New Radio Frequency Range 1 (FR1) and Frequency Range 2 (FR2) bands to enhance the availability of spectrum and spectrum-sharing opportunities. To enable the ...

    • 1917 : en reseguide till ett sargat men okuvat Finland 

      Niemi, Marjaana; Villstrand, Nils Erik; Karonen, Petri (SVENSKA LITTERATURSÄLLSKAPET I FINLAND, 2017)
      bookPart

    • 1D Convolutional Neural Networks and Applications - A Survey 

      Kiranyaz, Serkan; Avci, Onur; Abdeljaber, Osama; Ince, Turker; Gabbouj, Moncef; Inman, Daniel J. (04 / 2021)
      article
      During the last decade, Convolutional Neural Networks (CNNs) have become the de facto standard for various Computer Vision and Machine Learning operations. CNNs are feed-forward Artificial Neural Networks (ANNs) with ...

    • A 2-5.5 GHz Beamsteering Receiver IC with 4-Element Vivaldi Antenna Array 

      Zahra, Mahwish; Kempi, Ilia; Haarla, Jaakko; Antonov, Yury; Khonsari, Zahra; Miilunpalo, Toni; Ahmed, Nouman; Inkinen, Juha; Unnikrishnan, Vishnu; Lehtovuori, Anu; Viikari, Ville; Anttila, Lauri; Valkama, Mikko; Kosunen, Marko; Stadius, Kari; Ryynänen, Jussi (01.09.2020)
      article
      In this article, we present a four-element Vivaldi antenna array and beamsteering receiver IC for the fifth-generation mobile network (5G) new radio (NR). The implemented receiver utilizes a delay-based local-oscillator ...

    • 2-D Axisymmetric FEM-Based Approach for Identifying Dimension- and Frequency-Independent Material Parameters of Mn-Zn Ferrites 

      Elkhadrawy, Reda; Vesa, Joonas; Tarhasaari, Timo; Tsakaloudi, Vasiliki; Rasilo, Paavo (20.06.2024)
      article
      A 2-D axisymmetric finite element (FE) method based approach is presented for identifying intrinsic, dimension- and frequency-independent, electromagnetic material parameters of Mn-Zn ferrite cores. The parameters include ...

    • 2-D Predictive Filters for Polynomial Signals With Applications to Wind Profiler Data 

      Laakom, Firas (URSI, 10 / 2019)
      conferenceObject
      Polynomial predictors are known for their ability, in the absence of noise, to exactly predict a future value of a polynomial signal of a fixed order. One-dimensional filtering is a mature field and sophisticated filter design ...