2024/03/03 更新

写真a

アズハリ サマン
アズハリ サマン
所属
理工学術院 情報生産システム研究センター
職名
助教
学位
Doctor of Philosophy - PhD ( 2020年 Universiti Putra Malaysia )
メールアドレス
メールアドレス

経歴

  • 2022年04月
    -
    継続中

    早稲田大学   大学院情報生産システム研究科   助教

  • 2020年01月
    -
    2022年03月

    九州工業大学   大学院生命体工学研究科 人間知能システム工学専攻

  • 2015年08月
    -
    2016年01月

    Universiti Putra Malaysia   Institute of Advanced Technology   Research assistant   Research assistant

学歴

  • 2016年01月
    -
    2020年02月

    Universiti Putra Malaysia   Institute of Advanced Technology/Institute of Nanoscience and Nanotechnology   Nanotechnology  

  • 2013年01月
    -
    2016年01月

    Universiti Putra Malaysia   Institute of Advanced Technology/Institute of nanoscience and nanotechnology   Nanotechnology  

  • 2008年09月
    -
    2012年08月

    UCSI University   Engineering   Bachelor of Electrical and Electronics Engineering  

研究分野

  • 電気電子材料工学   Remote sensing via wirelessly powered porous multiwalled carbon nanotubes/polydimethylsiloxane nanocomposite / 電力工学   Wireless power transmission via inductive coupling / ナノバイオサイエンス   Bioreduction of metal nanoparticles / ナノ構造物理   Piezoresistive pressure sensing via Carbon nanotubes/Polydimethylsiloxane composite / 応用物性   Singlewalled carbon nanotubes-Polyoxometalate nanocomposite for reservoir computing / ナノ構造化学   Purification and functionalization of carbon nanotubes / ナノ材料科学   Synthesis and characterization of carbon nanotubes / 複合材料、界面   Carbon nanotubes-Polydimethylsiloxane nanocomposite
 

論文

  • High Performance of an In-Material Reservoir Computing Device Achieved by Complex Dynamics in a Nanoparticle Random Network Memristor

    Oradee Srikimkaew, Deep Banerjee, Saman Azhari, Yuki Usami, Hirofumi Tanaka

    ACS Applied Electronic Materials    2024年02月

    DOI

    Scopus

  • Effect of nonlinearity induced by atomic switch in Ag/Ag2S nanoparticles on performance of in-materio reservoir computing

    Thien Tan Dang, Oradee Srikimkaew, Deep Banerjee, Saman Azhari, Yuki Usami, Hirofumi Tanaka

    Applied Physics Letters    2024年02月

    DOI

  • Wireless Biosensors for Healthcare: Smart Contact Lenses and Microbial Devices

    Saman Azhari, Gábor Méhes, Takeo Miyake

    Wearable Biosensing in Medicine and Healthcare     151 - 177  2024年01月

    DOI

  • Influence of junction resistance on spatiotemporal dynamics and reservoir computing performance arising from an SWNT/POM 3D network formed via a scaffold template technique

    Saman Azhari, Deep Banerjee, Takumi Kotooka, Yuki Usami, Hirofumi Tanaka

    Nanoscale    2023年

    DOI

  • Integration of wireless power transfer technology with hierarchical multi-walled carbon nanotubes-Polydimethylsiloxane piezo-responsive pressure sensor for remote force measurement

    Saman Azhari, Kouki Kimizuka, Gabor Mehes, Yuki Usami, Yasuhiko Hayashi, Hirofumi Tanaka, Takeo Miyake

    IEEE Sensors Journal   23 ( 7 ) 1 - 1  2023年

    DOI

  • In-materio computing in random networks of carbon nanotubes complexed with chemically dynamic molecules: a review.

    Hirofumi Tanaka, Saman Azhari, Yuki Usami, Deep Banerjee, Takumi Kotooka, Oradee Srikimkaew, Thien-Tan Dang, S. Murazoe, Rikuto Oyabu, Kouki Kimizuka, Masaya Hakoshima

    Neuromorph. Comput. Eng.   2 ( 2 ) 22002 - 22002  2022年

    DOI

    Scopus

    8
    被引用数
    (Scopus)
  • Emergence of In-Materio Intelligence from an Incidental Structure of a Single-Walled Carbon Nanotube-Porphyrin Polyoxometalate Random Network

    Deep Banerjee, Takumi Kotooka, Saman Azhari, Yuki Usami, Takuji Ogawa, James K. Gimzewski, Hakaru Tamukoh, Hirofumi Tanaka

    ADVANCED INTELLIGENT SYSTEMS   4 ( 4 ) 2100145 - 2100145  2022年01月

     概要を見る

    Hardware-based machine intelligence with the network architecture of reservoir computing (RC) is gaining interest because of its biological computational resemblance along with an easy and efficient neural network training approach. Herein, such a physical RC (in-materio RC) platform consisting of a recurrent network formed by the single-walled carbon nanotube (SWNT)-porphyrin polyoxometalate (Por-POM) complex is demonstrated. The network architecture executes the fundamental reservoir properties of nonlinearity, higher harmonic generation, and 1/f(gamma) power law information processing ability. Based on these functionalities, an RC benchmark task of waveform generation is performed where the device achieves maximum fitting accuracy of 99.4%. Furthermore, a supervised object classification task based on a one-hot vector target is also executed using Toyota Human Support Robot tactile inputs. The successful classification of objects of different hardness is enhanced when the device output response follows the 1/f(gamma) power law of maximized information processing.

    DOI

  • 自動トマト収穫システムに向けて:触覚ベースピエゾ抵抗ナノ複合材料と機械学習の統合【JST・京大機械翻訳】

    Azhari Saman, Setoguchi Takuya, Sasaki Iwao, Nakagawa Arata, Ikeda Kengo, Azhari Alin, Hasan Intan Helina, Hamidon Mohd Nizar, Fukunaga Naoto, Shibata Tomohiro, Tanaka Hirofumi

    IEEE Sensors Journal   21 ( 24 ) 27810 - 27817  2021年12月

    DOI J-GLOBAL

    Scopus

    4
    被引用数
    (Scopus)
  • 単層カーボンナノチューブ/ポルフィリン-ポリオキソ金属酸塩複合材料によるブール関数最適化のためのin-marioリザーバー計算の室温実証

    Banerjee Deep, Azhari Saman, Azhari Saman, Usami Yuki, Usami Yuki, Tanaka Hirofumi, Tanaka Hirofumi

    Applied Physics Express   14 ( 10 )  2021年10月

    DOI J-GLOBAL

    Scopus

    9
    被引用数
    (Scopus)
  • Ag-Ag2Sコア-シェルナノ粒子ベースランダムネットワークリザーバー計算デバイスの性能

    Hadiyawarman, Hadiyawarman, Usami Yuki, Usami Yuki, Kotooka Takumi, Azhari Saman, Azhari Saman, Eguchi Masanori, Eguchi Masanori, Tanaka Hirofumi, Tanaka Hirofumi, Tanaka Hirofumi

    Japanese Journal of Applied Physics   60 ( SC )  2021年06月

    DOI J-GLOBAL

    Scopus

    9
    被引用数
    (Scopus)
  • マイクロ波デバイス応用のための有機自動車として亜麻仁油を用いたニッケル亜鉛フェライト厚膜【JST・京大機械翻訳】

    Hasan Intan Helina, Hamidon Mohd Nizar, Hamidon Mohd Nizar, Ismail Alyani, Ismail Ismayadi, Mohd Azhari Nur Alin, Mohd Kusaimi Muhammad Asnawi, Azhari Saman

    Materials Chemistry and Physics   236  2019年10月

    DOI J-GLOBAL

    Scopus

    7
    被引用数
    (Scopus)
  • フレキシブルパッチアンテナの最適化性能のためのニッケル亜鉛フェライト厚膜【JST・京大機械翻訳】

    Hasan Intan Helina, Hamidon Mohd Nizar, Ismail Ismayadi, Ismail Alyani, Kusaimi Muhammad Asnawi Mohd, Azhari Saman

    IEEE Conference Proceedings   2019 ( ISESD )  2019年10月

    DOI J-GLOBAL

    Scopus

  • パッチアンテナへの応用の可能性のあるカーボンナノチューブ厚膜ペーストのレオロジー特性【JST・京大機械翻訳】

    Hasan Intan Helina, Hamidon Mohd Nizar, Ismail Ismayadi, Kusaimi Muhammad Asnawi Mohd, Azhari Saman, Shafiee Farah Nabilah

    IEEE Conference Proceedings   2019 ( RSM ) 109 - 111  2019年08月

    DOI J-GLOBAL

    Scopus

    1
    被引用数
    (Scopus)
  • フレキシブルマイクロストリップパッチアンテナの作製におけるイットリウム鉄ガーネット厚膜の効果【JST・京大機械翻訳】

    Hasan Intan Helina, Hamidon Mohd Nizar, Ismail Alyani, Ismail Ismayadi, Azhari Nur Alin Mohd, Azhari Saman, Kusaimi Muhammad Asnawi Mohd, Osman Rosiah

    IEEE Conference Proceedings   2019 ( EDTM ) 389 - 391  2019年03月

    DOI J-GLOBAL

    Scopus

    1
    被引用数
    (Scopus)
  • Effect of firing temperature on surface morphology of nanosized ferrite-based thick film with linseed oil as organic vehicle

    Intan Helina Hasan, Mohd Nizar Hamidon, Muhammad Asnawi Mohd Kusaimi, Saman Azhari, Nur Alin Mohd Azhari, Rosiah Osman, Juraina Md Yusof, Ismayadi Ismail

    International Journal of Nanotechnology   16 ( 11-12 ) 660 - 667  2019年

     概要を見る

    This paper presents the results of morphological study on nanosized nickel zinc ferrite (NZF) thick film using linseed oil as organic vehicle and nanosized NZF powder. First, NZF nanopowder is mixed with organic vehicle which consists of linseed oil, m-xylene and α-terpineol. Paste samples were screen printed onto alumina as substrate, dried and fired at different temperatures of 100°C, 200°C, and 300°C, respectively. Microscopic images of the samples and elemental analysis were observed to determine good dispersion of the active powder with the organic vehicle. Based on the results, the nanoparticles were uniformly dispersed, and images of thick films fired at 200°C and 300°C have shown clearly visible particles, indicating that at these temperatures, the organic vehicle has started to evaporate on the surface, revealing nanoparticles of the active powders. The elemental analysis confirmed this idea, of which carbon element of the organic vehicle gradually decreased with increasing temperature.

    DOI

    Scopus

  • CNTの化学精製と官能化プロセスのより良い理解【JST・京大機械翻訳】

    Azhari Saman, Hamidon Mohd Nizar, Hasan Intan Halina, Asnawi Muhammad, Mohd Chachuli Siti Amaniah, Azhari Alin, Ismail Ismayadi

    IEEE Conference Proceedings   2018-August ( ICSE ) 25 - 28  2018年10月

    DOI J-GLOBAL

    Scopus

    2
    被引用数
    (Scopus)
  • Nickel zinc ferrite thick film as substrate overlay for improved performance of microstrip patch antenna

    I. H. Hasan, M. N. Hamidon, A. Ismail, I. Ismail, M. A.M. Kusaimi, S. Azhari, N. A.M. Azhari, R. Osman

    IOP Conference Series: Materials Science and Engineering   380 ( 1 )  2018年07月

     概要を見る

    In this paper, nickel zinc ferrite (NZF) nanopowder was mixed with organic vehicle which consists of linseed oil, m-xylene and α-terpineol. Then the mixture was sonicated for 1 hour at 40°C in order to obtain homogenous paste, followed by printing it onto FR4 substrate using the screen printing technique to form the NZF thick film layer before dried at 100°C and later fired at 200°C. A basic square shape patch antenna by using silver paste was printed onto the NZF thick film layer and was compared with another patch antenna which was been printed without the NZF layer. The results showed that the antenna with NZF thick film layer has return loss of -10.97dB, resonant frequency 6.42GHz, bandwidth 3.9 and Q factor of 1.646, which is better compared to the antenna without the layer by 32.81%, 3.22%, 86.60% and 44.69% respectively.

    DOI

    Scopus

    4
    被引用数
    (Scopus)
  • YIG Thick Film as Substrate Overlay for Bandwidth Enhancement of Microstrip Patch Antenna

    Intan Helina Hasan, Mohd Nizar Hamidon, Alyani Ismail, Ismayadi Ismail, Anwer Sabah Mekki, Muhammad Asnawi Mohd Kusaimi, Saman Azhari, Rosiah Osman

    IEEE Access   6   32601 - 32611  2018年05月

     概要を見る

    Research on microstrip patch antenna (MPA) has been growing in the past few decades due to its planar profile and easy fabrication. Its simplicity of structure, which includes a conductive patch, a dielectric substrate, a ground plane, and a microstrip feeder, is making it more popular for integration in devices which are more focused on miniaturization and flexibility. There are, however, a few disadvantages of MPA, such as narrow bandwidth, low power, and limited inexpensive material selection if a current printed circuit board etching fabrication technique is used. Ferrite substrates are known to be able to help overcome this issue, but the properties of bulk ferrites are difficult to control. This paper aims to solve this problem by using thick-film technology, which utilizes a screen printing method to include ferrite thick film in the MPA structure as substrate overlay to help enhance the performance of MPA. Yttrium iron garnet was chosen as the starting ferrite nanopowders, and the preparation and characterization of the ferrite thick-film paste were carried out to investigate properties of the thick film. Results showed that the thick film showed moderate permittivity and permeability, which is suitable for MPA fabrication. The actual fabricated MPA with ferrite thick-film inclusion on FR4 substrate showed that the thick film improved the performance of MPA with low firing temperature of 200 °C. For MPA which is designed to work at 5.8 GHz, the return loss and -3-dB bandwidth improved 100% and 73%, respectively. In conclusion, ferrite thick-film inclusion in MPA fabrication has proven to improve the performance of the antenna in terms of return loss and bandwidth enhancement.

    DOI

    Scopus

    16
    被引用数
    (Scopus)
  • Fabrication, functionalization, and dispersion of carbon nanotubes

    Taha Roodbar Shojaei, Saman Azhari

    Emerging Applications of Nanoparticles and Architectural Nanostructures: Current Prospects and Future Trends     501 - 531  2018年03月

     概要を見る

    Discovery of carbon nanotubes (CNTs) was beginning of a revolutionary path for material scientists. CNTs extraordinary properties made this wonder material an important alternative for scientists in all fields; although utilizing CNTs were not as simple as synthesizing them. Ever since the discovery, numerous platforms for synthesis of CNTs have been investigated. Depending on the necessity of the application in which CNTs are exploited different quality, yield, chirality, size, and properties are required. Nowadays the fabrication process mostly relies on arc discharge, laser ablation and chemical vapor deposition (CVD). One of the major drawbacks in exploitation of CNTs is their tenancy to aggregate due to the weak van der Waals forces present as a result of sp2 hybridization of carbon atoms. Due to the extraordinary mechanical, electrical, optical, chemical, physical, biological, and other features of CNTs, scientists began to work on different methods to overcome aggregation during utilization of CNTs. Dispersion of CNTs has been done via several functionalization processes. Each of these techniques has their own functionality. Functionalization of CNTs depends on two central techniques, covalent and noncovalent modifications, which are essential, to achieve desired characteristics that can be applied in wide range of applications. Therefore, in this chapter we will try to explain the CNTs fabrication techniques as well as the methods that have been utilized to increase the purity and dispersion of CNTs.

    DOI

    Scopus

    7
    被引用数
    (Scopus)
  • カーボンブラック/PDMSを用いたフレキシブル圧力センサの作製【Powered by NICT】

    Hadi Siti Nursyahirah Binti Abdul, Hamidon Mohd Nizar Bin, Azhari Saman

    IEEE Conference Proceedings   2018-January ( SCOReD ) 7 - 12  2018年02月

    DOI J-GLOBAL

    Scopus

  • マイクロ波オーブンによる籾殻からの炭素ナノ材料の合成【JST・京大機械翻訳】

    Asnawi Muhammad, Azhari Saman, Hamidon Mohd Nizar, Ismail Ismayadi, Helina Intan

    Journal of Nanomaterials (Web)   2018  2018年

    DOI J-GLOBAL

    Scopus

    40
    被引用数
    (Scopus)
  • 精製と官能化CNT/PDMSナノ複合材料によるピエゾ抵抗をベースにした圧力センサの作製:触覚センサの開発に向けて【Powered by NICT】

    Azhari Saman, Termeh Yousefi Amin, Tanaka Hirofumi, Khajeh Amin, Kuredemus Nico, Mansouri Bigdeli Mani, Hamidon Mohd Nizar

    Sensors and Actuators. A. Physical   266   158 - 165  2017年10月

    DOI J-GLOBAL

    Scopus

    27
    被引用数
    (Scopus)
  • 触覚に基づくピエゾ抵抗人工指先の開発:ヒト型ロボットのための効率的な触覚センシングシステムに向けて【Powered by NICT】

    TermehYousefi Amin, Azhari Saman, Khajeh Amin, Hamidon Mohd Nizar, Tanaka Hirofumi

    Materials Science & Engineering. C. Materials for Biological Applications   77   1098 - 1103  2017年08月  [国際誌]

    DOI PubMed J-GLOBAL

    Scopus

    15
    被引用数
    (Scopus)
  • Simple Microwave-Assisted Synthesis of Carbon Nanotubes Using Polyethylene as Carbon Precursor

    N. Kure, M. N. Hamidon, S. Azhari, N. S. Mamat, H. M. Yusoff, B. M. Isa, Z. Yunusa

    Journal of Nanomaterials   2017  2017年

     概要を見る

    In this work, a quick and effective method to synthesize carbon nanotubes (CNTs) is reported; a commercial microwave oven of 600 W at 2.45 GHz was utilized to synthesize CNTs from plasma catalytic decomposition of polyethylene. Polyethylene and silicon substrate coated with iron (III) nitrate were placed in the reaction chamber to form the synthesis stock. The CNTs were synthesized at 750°C under atmospheric pressure of 0.81 mbar. Raman spectroscopy and field emission scanning electron microscope revealed the quality and entangled bundles of mixed CNTs from which the diameters of the CNTs were calculated to be between 1.03 and 25.00 nm. High resolution transmission electron microscope further showed that the CNTs obtained by this method are graphitized. Energy dispersive X-ray analysis and thermogravimetric analysis revealed above 98% carbon purity.

    DOI

    Scopus

    27
    被引用数
    (Scopus)
  • Synthesis of carbon nanotubes using microwave oven

    Nicodemus Kure, Mohd Nizar Hamidon, Saman Azhari, Kamilu Iman Usman, Intan Helina Hasan, Ismayadi Ismail

    RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings     353 - 356  2015年12月

     概要を見る

    Advances in the synthesis of carbon nanotubes (CNTs) have emerged as a result of the properties and potential application of carbon nanotubes. We demonstrated a simple approach of using domestic microwave oven with 600W at 2.45 GHz which was modified to produce CNTs from a carbon source on coated silicon oxide substrate. The Raman spectroscopy showed the graphitic nature of the obtained CNTs, with intensity ratio ID/IG calculated to be 0.92. Field emission scanning electron microscope (FESEM) reveals CNTs are produced on the substrate surface with outer diameter range of 11-44 nm and length of about 0.25 μm. HRTEM further confirmed the graphitic nature of the CNTs obtained. The purity of the nanotubes was analyzed with energy dispersive X-ray (EDX) which showed atomic weight of 98% carbon purity. This paper shows that domestic microwave oven can be used to synthesize CNTs with polymer as the carbon source via plasma catalytic decomposition which was found to be fast, economical and clean technique.

    DOI

    Scopus

  • Printability and structural analysis of Yttrium iron garnet thick film with low firing temperature

    Intan Helina Hasan, Mohd Nizar Hamidon, Ismayadi Ismail, Rosiah Osman, Saman Azhari

    RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings     267 - 270  2015年12月

     概要を見る

    This paper presents results of study on Yttrium iron garnet (YIG) thick film paste using linseed oil as organic binder. YIG nanopowder is mixed with organic vehicle which consists of linseed oil, m-xylene and α-terpineol. Samples with different ratios of compositions are prepared to study the printability and adhesion properties of the paste. Paste samples were then screen printed onto alumina substrate, dried and fired at 300°C. Microscopic images of the samples were observed to determine most suitable ratio for producing YIG paste. Based on the results, YIG paste with 30 wt% ratio showed good adhesion to the substrate as well as having high dielectric property compared to pastes with lower powder ratio.

    DOI

    Scopus

    4
    被引用数
    (Scopus)
  • Effect of aggregation on dielectric property of MWCNT/PDMS nanocomposite

    Saman Azhari, Mohd Nizar Hamidon, Kamilu Iman Usman, Intan Helina Hasan, Ismayadi Ismail, Kure Nicodemus

    RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings     361 - 364  2015年12月

     概要を見る

    Highly graphitized nucleophilic group functionalized Multiwall carbon nanotubes are utilized to fabricate PDMS/FMWCNTs nanocomposites with low weight fraction (0.1 wt%). The effect of solvents on dispersion of FMWCNTs is studied. THF shows higher dispersion power in comparison with chloroform. The dielectric constant is measured using impedance analyzer in the range of 106-109 Hz. The result indicate, the dielectric property of FMWCNTs/PDMS nanocomposite could be manipulated with proper mixing techniques and adjustment of curing time.

    DOI

    Scopus

    3
    被引用数
    (Scopus)
  • Silicon nanowire interface circuit for biosensing applications

    Kamilu Iman Usman, Mohd Nizar Hamidon, Nor Azah Yusof, Saman Azhari, Intan Helina Hasan, Kure Nicodemus, Siti Fatimah Abd Rahman

    RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings     357 - 360  2015年12月

     概要を見る

    Detection and quantification of biological and chemical species are critical to many areas of the life sciences and health care, from disease diagnosis to drug screening. Central to detection is the transduction of the signal associated with the sensing event. Advances in nanotechnology have led to the development of the silicon nanowire which is faster, smaller, greener and cheaper. These nanowires have a very narrow diameter similar to that of the chemical and biological species to be sensed making them perfectly suited for biosensing. The top-down fabricated silicon nanowires is used in this work due to its oxide-coated surface and ease of integration with other microelectronic components. Due to the ultra-small output signal of the nanowire, bulky equipments which are often time consuming and expensive are used for reading the signal. This work attempts to build a circuit that can be interfaced with the nanowire to make the signal readable hence the sensor will become portable thereby increasing its utility to being a point-of-care and field-testing device.

    DOI

    Scopus

    1
    被引用数
    (Scopus)

▼全件表示

書籍等出版物

  • Emerging Applications of Nanoparticles and Architecture Nanostructures Current Prospects and Future Trends

    ( 担当: 分担執筆)

    Elsevier  2018年01月 ISBN: 9780323512541

共同研究・競争的資金等の研究課題

  • 人工皮膚応用に向けた微小圧力センサマイクロアレイの開発と生体実装

    旭興産グループ研究支援プログラム 

    研究期間:

    2021年04月
    -
    2024年03月
     

Misc

  • 3次元多孔質CNT-POMネットワークにおける貯留層計算増強【JST・京大機械翻訳】

    AZHARI Saman, BANERJEE Deep, KOTOOKA Takumi, USAMI Yuki, TANAKA Hirofumi

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   68th   263 - 263  2021年

    DOI J-GLOBAL

  • ナノ材料集合体を記憶部に用いた時間遅延型リザバーコンピューティング

    中尾祐介, 宇佐美雄生, 宇佐美雄生, AZHARI Saman, AZHARI Saman, HADIYAWARMAN, HADIYAWARMAN, 田中啓文, 田中啓文

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   68th   1670 - 1670  2021年

    DOI J-GLOBAL

  • 三次元多孔性CNT-POMネットワークのリザバーコンピューティング

    AZHARI Saman, BANERJEE Deep, KOTOOKA Takumi, USAMI Yuki, TANAKA Hirofumi

    ナノ学会大会講演予稿集   19th  2021年

    J-GLOBAL

  • 単層カーボンナノチューブ/ポルフィリン-ポリオキソメタレートのランダムネットワークによるインマトリオ教師付きブール論理演算【JST・京大機械翻訳】

    DEEP Banerjee, AZHARI Saman, USAMI Yuki, TANAKA Hirofumi

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   82nd  2021年

    J-GLOBAL

  • インマトリオ貯水池計算に及ぼすデバイストポロジーの影響【JST・京大機械翻訳】

    AZHARI Saman, BANERJEE Deep, MURAZOE Shuho, KOTOOKA Takumi, USAMI Yuki, USAMI Yuki, TANAKA Hirofumi, TANAKA Hirofumi

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   82nd  2021年

    J-GLOBAL

  • TiO_2ナノワイヤの水素ガス検知特性に及ぼす親水性の影響【JST・京大機械翻訳】

    AZHARI Saman, HAMIDON Mohd Nizar, TANAKA Hirofumi

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   67th   1725 - 1725  2020年

    DOI J-GLOBAL

  • 多様な材料を利用したランダムネットワーク物理リザバーの比較

    田中啓文, 田中啓文, 琴岡匠, DEEP Banerjee, HADIYAWARMAN, HADIYAWARMAN, AZHARI Saman, AZHARI Saman, 宇佐美雄生, 宇佐美雄生

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   81st   222 - 222  2020年

    DOI J-GLOBAL

  • TiO_2ナノチューブの水素ガス検知特性に対する親水性の重要性【JST・京大機械翻訳】

    AZHARI Saman, AZHARI Saman, HAMIDON Mohd Nizar, TANAKA Hirofumi, TANAKA Hirofumi

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   81st   1287 - 1287  2020年

    DOI J-GLOBAL

  • カーボンフォームを利用した触覚センサの作製と評価

    池田健吾, AZHARI Saman, 佐々木巌, 宇佐美雄生, 田中啓文

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   81st   2245 - 2245  2020年

    DOI J-GLOBAL

  • トマト収穫自動化に向けた,高感度ピエゾ抵抗ナノ複合材料触覚センサ

    池田健吾, 佐々木巌, Azhari Saman, Azhari Saman, 瀬戸口卓也, 中川新, Hamidon Mohd Nizar, 田中啓文

    日本表面真空学会学術講演会要旨集(Web)   2019   1Ca12  2019年

     概要を見る

    CNT / PDMS複合材料をトマト収穫用触覚センサとして構成し、I-VおよびI-t特性を調査した。導電パスの増加により、I-V曲線は高重量領域に向かって減少した。硬度測定の結果、トマトの低重量領域において正確で安定した測定が可能となり、 市販のセンサよりも高い感度を示した。トマトの成熟度を判別するためにサポートベクターマシンによる機械学習を行った。その結果、0.67の判別精度であった。

    DOI CiNii J-GLOBAL

▼全件表示

産業財産権

  • 識別装置及びそれを有するロボット

    田中啓文, 宇佐美雄生, 君塚紘喜, アズハリサマン, カラチャリアハメト

    特許権

  • 力学量センサ及びそれを有するロボット並びに力学量のセンシング方法

    田中啓文, 宇佐美雄生, アズハリサマン, 君塚紘喜

    特許権

  • 3次元電気素子及びそれを備えた機械学習システム並びにそれぞれの製造方法

    田中啓文, 宇佐美雄生, アズハリサマン

    特許権

  • 3次元電気素子及びそれを備えた機械学習システム

    田中啓文, 宇佐美雄生, アズハリサマン

    特許権

 

特定課題制度(学内資金)

  • Tunable 3D reservoir computing using SWCNT-PVA nanocomposite via manipulation of junction resistance

    2023年   Saman Azhari

     概要を見る

    The tunability of aphysical reservoir computing device is a challenge and difficult to rectify.This is mainly due to the complexity of the charge transfer mechanism innanostructures used to make a microdevice. The randomness of the nanomaterialnetwork is suggested to improve the physical reservoir computing performance,but such randomness makes it even more challenging to identify the source ofperformance improvement or decline.  Duringthis year, we aimed to fabricate a tunable 3D reservoir computing device usingSWCNT-PVA nanocomposite via manipulation of junction resistance. We were able tofabricate a 3D porous network of SWCNT-PVA nanocomposite successfully. However,an issue arose during the measurement of reservoir computing performance due tothe low mechanical stability of the nanocomposite. The nanocomposite was softand deformable and unable to recover its original state, making it challengingto perform a stable and reliable reservoir computing performance assessment. Inaddition, the high-water susceptibility of PVA made it difficult to performfurther analysis on the nanocomposite. Although I do believe there are otherapplications for SWCNT-PVA porous nanocomposite in the current state, it is notsuitable as a physical reservoir computing device. The current issue couldpossibly be rectified by introducing additives to improve the mechanicalstability of the nanocomposite. So far, the reservoir computing performance of SWCNT-PVAnanocomposite results have been inconclusive, but I am in the process ofimproving the structural stability. My research on physicalreservoir computing did not stop due to the challenges I faced. While workingon SWCNT-PVA, as a result of my collaboration with Professor Hirofumi Tanaka ofthe Kyushu Institute of Technology, we were able to publish an article in ACS AppliedElectronic Materials with the title “High Performance of an In-MaterialReservoir Computing Device Achieved by Complex Dynamics in a NanoparticleRandom Network Memristor.”

  • Development of electromagnetic reservoir computing system via wireless power transmission technology for voice classification and word prediction tasks

    2022年   Takeo Miyake, Hirofumi Tanaka, Gabor Mehes, Yuki Usami

     概要を見る

    In the development of an electromagnetic (EM) reservoircomputing system for classification tasks, inputting data and measuringinterferences in the EM field pose a challenge. We have developed a system thatconverts high-frequency AC signals to DC to overcome the high-frequencysampling difficulties. The system uses a piezoresistive material to inducechanges in the EM field between the transmitter and receiver, which are thenobserved as a DC voltage drop in the transmitter. These changes serve as ameans of measurement for inputting data into the EM reservoir. Our research has successfully addressed the challenges ofinputting data and measuring interferences in the EM field for a reservoircomputing system. The next step is to increase the number of output nodes toenhance the accuracy of the tasks performed by the system. The results of ourwork, titled "Integration of wireless power transfer technology withhierarchical multi-walled carbon nanotubes-Polydimethylsiloxanepiezo-responsive pressure sensor for remote force measurement", arecurrently under review by IEEE Sensor. In conclusion, our findings demonstrate the potential of usingthe EM field as a reservoir computing system to perform time-dependent andclassification tasks. The system has numerous potential applications and couldhave significant implications in various fields.