Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Naoto Nagai"'
Autor:
Naoto Nagai, Hideki Okada, Yuko Amaki, Miyuki Okamura, Takuma Fujii, Takaki Suzuki, Akihiro Takayanagi, Sumito Nakagawa
Publikováno v:
AIP Advances, Vol 10, Iss 9, Pp 095201-095201-11 (2020)
Polarized infrared (IR) reflectance measurements were performed on polyoxymethylene (POM) prepared by the extrusion method, and an abnormally high reflectance of ∼90% was observed along the extruded direction in the 1000 cm−1–900 cm−1 region.
Externí odkaz:
https://doaj.org/article/b9c33f9574964e36b225b0053a83e304
Publikováno v:
AIP Advances, Vol 9, Iss 10, Pp 105203-105203-12 (2019)
Infrared (IR) spectroscopy is mostly used for analysis of normal modes, which provides rich chemical information of molecular structure at each chemical group. In practice, however, we sometimes encounter an unusually broad peak that cannot be assign
Externí odkaz:
https://doaj.org/article/63efdf109f894e2aadeff73593b49d85
Publikováno v:
Applied spectroscopy. 76(6)
The heat treatment of an injection-molded polyoxymethylene slightly below the melting point and subsequent isothermal treatment at 130 °C were performed. The polyoxymethylene structure was examined using field-emission scanning electron microscopy a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c9721cd0d9024d2db0d9be7be5ae871
https://pubmed.ncbi.nlm.nih.gov/35081767
https://pubmed.ncbi.nlm.nih.gov/35081767
Publikováno v:
The Journal of Chemical Physics. 153(4)
Infrared (IR) spectra of an organic thin film are mostly understood by considering the normal modes of a single molecule, if the dipole-dipole (D-D) interaction is ignorable in the film. When the molecules have a chemical group having a large permane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cff862471ef815ab4bb97c1ae7d85d5
http://hdl.handle.net/2433/253744
http://hdl.handle.net/2433/253744
Infrared Response of Sub-Micron-Scale Structures of Polyoxymethylene: Surface Polaritons in Polymers
Publikováno v:
Applied Spectroscopy. 70:1278-1291
An investigation of the infrared (IR) spectra of polyoxymethylene (POM) mold plates was undertaken to determine the sub-micron-scale morphology and molecular orientation. The nest-structured cells concerned with the orientation were observed from sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b72e16b5e06c5fe3db14d88bfa2fb13c
https://doi.org/10.1177/0003702816653577
https://doi.org/10.1177/0003702816653577
Autor:
Sumito Nakagawa, Suzuki Takaki, Fujii Takuma, Naoto Nagai, Miyuki Okamura, Akihiro Takayanagi, Hideki Okada, Yuko Amaki
Publikováno v:
AIP Advances, Vol 10, Iss 9, Pp 095201-095201-11 (2020)
Polarized infrared (IR) reflectance measurements were performed on polyoxymethylene (POM) prepared by the extrusion method, and an abnormally high reflectance of ∼90% was observed along the extruded direction in the 1000 cm−1–900 cm−1 region.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a025d14658c71c0c6a22a5f27e718e8
https://doaj.org/article/b9c33f9574964e36b225b0053a83e304
https://doaj.org/article/b9c33f9574964e36b225b0053a83e304
Publikováno v:
AIP Advances, Vol 9, Iss 10, Pp 105203-105203-12 (2019)
Infrared (IR) spectroscopy is mostly used for analysis of normal modes, which provides rich chemical information of molecular structure at each chemical group. In practice, however, we sometimes encounter an unusually broad peak that cannot be assign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::527ebe60aee86bb64d8316b277a2e48f
https://doaj.org/article/63efdf109f894e2aadeff73593b49d85
https://doaj.org/article/63efdf109f894e2aadeff73593b49d85
Publikováno v:
Applied Spectroscopy. 66:1087-1090
The attenuated total reflection (ATR) mode in Fourier transform infrared (FT-IR) spectroscopy has been used to detect the sugar transformations of carrots under various storage conditions. The composition of the sugars was assessed by principal compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b567238863395c0407e72e20d376af59
https://doi.org/10.1366/12-06647
https://doi.org/10.1366/12-06647
Publikováno v:
Applied Spectroscopy. 63:66-72
We developed a new sampling system, the Nano Catcher, for measuring the surface chemical structure of polymers or industrial products and we evaluated the performance of the system. The system can directly pick up surface species whose depth is on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd7d4c1ec7662f9ea883b61b9cd18448
https://doi.org/10.1366/000370209787169885
https://doi.org/10.1366/000370209787169885
Autor:
Naoto Nagai, Yutaka Katsurazawa
Publikováno v:
Biopolymers. 85:207-213
The THz spectra of amino acids after application of spots of acetone were measured. The 0.6 THz band was commonly observed in many amino acids that formed the intra-molecular salt structure. The band can be attributed to the interaction vibration fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d97bebe271219d6fff195812f9cbfac1
https://doi.org/10.1002/bip.20623
https://doi.org/10.1002/bip.20623