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Lee, Tae-Ho,Kim, Sung-Joon,Shin, Eunjoo,Takaki, Setsuo International Union of Crystallography 2006 Acta crystallographica. Section B, Structural scie Vol.62 No.6
<P>The ordered structure of Cr2N precipitates in high-nitrogen austenitic steel was investigated utilizing high-resolution neutron powder diffractometry (HRPD). On the basis of the Rietveld refinement of neutron diffraction patterns, the ordered Cr2N superstructure was confirmed to be trigonal (space group P\overline 3 1m), with lattice parameters <I>a</I> = 4.800 (4) and <I>c</I> = 4.472 (5) Å, as suggested in previous transmission electron microscopy studies [Lee, Oh, Han, Lee, Kim & Takaki (2005). <I>Acta Cryst</I>. B61, 137-144; Lee, Kim & Takaki (2006). <I>Acta Cryst</I>. B62, 190-196]. The occupancies of the N atoms in four crystallographic sites [1(<I>a</I>), 1(<I>b</I>), 2(<I>d</I>) and 2(<I>c</I>) Wyckoff sites] were determined to be 1.00 (5), 0.0, 0.74 (9) and 0.12 (3), respectively, reflecting a partial disordering of N atoms along the <I>c</I> axis. The position of the metal atom was specified to be <I>x</I> = 0.346 (8) and <I>z</I> = 0.244 (6), corresponding to a deviation from the ideal position (<I>x</I> = 0.333 and <I>z</I> = 0.250). This deviation caused the (\,{1 \over 3}{1 \over 3}0)-type superlattice reflection to appear. A comparison between the ideal and measured crystal structures of Cr2N was performed using a computer simulation of selected-area diffraction patterns.</P>
Effects of elevation on shoulder joint motion: comparison of dynamic and static conditions
Takaki Imai,Takashi Nagamatsu,Junichi Kawakami,Masaki Karasuyama,Nobuya Harada,Yu Kudo,Kazuya Madokoro 대한견주관절의학회 2023 대한견주관절의학회지 Vol.26 No.2
Background: Although visual examination and palpation are used to assess shoulder motion in clinical practice, there is no consensus on shoulder motion under dynamic and static conditions. This study aimed to compare shoulder joint motion under dynamic and static conditions. Methods: The dominant arm of 14 healthy adult males was investigated. Electromagnetic sensors attached to the scapular, thorax, and humerus were used to measure three-dimensional shoulder joint motion under dynamic and static elevation conditions and compare scapular upward rotation and glenohumeral joint elevation in different elevation planes and angles. Results: At 120° of elevation in the scapular and coronal planes, the scapular upward rotation angle was higher in the static condition and the glenohumeral joint elevation angle was higher in the dynamic condition (P<0.05). In scapular plane and coronal plane elevation 90°–120°, the angular change in scapular upward rotation was higher in the static condition and the angular change in scapulohumeral joint elevation was higher in the dynamic condition (P<0.05). No differences were found in shoulder joint motion in the sagittal plane elevation between the dynamic and static conditions. No interaction effects were found between elevation condition and elevation angle in all elevation planes. Conclusions: Differences in shoulder joint motion should be noted when assessing shoulder joint motion in different dynamic and static conditions.
takaki Hatae,H. Yoshida,M. Nakatsuka,O. Naito,S. Kitamura,T. Hamano,T. Sakuma 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
Phase conjugate mirror based on stimulated Brillouin scattering (SBS) is a fundamentally new and promising technology, and it is applicable to plasma diagnostics in order to improve the measurement performance. A review is presented about the applications of SBS phase conjugation to Thomson scattering diagnostics in JT-60U and ITER. Proposed applications using the phase conjugate mirror to plasma diagnostics, namely double-pass and multipass Thomson scattering methods, were described. Improvement of diagnostic laser system for Thomson scattering employing the phase conjugate mirror are also described.I
Takaki Imai,Masafumi Gotoh,Keiji Fukuda,Misa Ogino,Hidehiro Nakamura,Hiroki Ohzono,Naoto Shiba,Takahiro Okawa 대한견주관절의학회 2021 대한견주관절의학회지 Vol.24 No.2
Background: Complex regional pain syndrome (CRPS)-related hand lesions are one of the complications following arthroscopic rotator cuff repair (ARCR). This study aimed to investigate the clinical outcomes of patients with CRPS-related hand lesions following ARCR. Methods: Altogether, 103 patients with ARCR were included in this study (mean age, 63.6±8.2 years; 66 males and 37 females; follow-up period, preoperative to 12 months postoperative). Clinical assessment included the Japanese Orthopaedic Association (JOA) score, University of California, Los Angeles (UCLA) score, Constant score, 36-item short form health survey (SF-36) score, and Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score from preoperative to 12 months postoperatively. The patients were either assigned to the CRPS group or non-CRPS group depending on CRPS diagnosis until the final follow-up, and clinical outcomes were then compared between the groups. Results: Of 103 patients, 20 (19.4%) had CRPS-related hand lesions that developed entirely within 2 months postoperatively. Both groups showed significant improvement in JOA, UCLA, and Constant scores preoperatively to 12 months postoperatively (p<001). Comparisons between the two groups were not significantly different, except for SF-36 “general health perception” (p<0.05) at 12 months postoperatively. At final follow-up, three patients had residual CRPS-related hand lesions with limited range of motion and finger edema. Conclusions: CRPS-related hand lesions developed in 19.4% of patients following ARCR. Shoulder or upper-limb function improved in most cases at 12 months, with satisfactory SF-36 patient-based evaluation results. Patients with residual CRPS-related hand lesions at the last follow-up require long-term follow-up.
Teaching of English and American Literature in Japan: A Brief Survey
Takaki Hiraishi 한국영미문학교육학회 2003 영미문학교육 Vol.7 No.1
Many scenes of heated discussion have recently been witnessed in Japan on the question of education of English literature in colleges and universities. A growing number of Japanese teachers of English literature are now trying to help students understand cultures of the English-speaking world, some of them particularly interested in what is called "cultural studies"; meanwhile, teachers supporting the traditional view, not necessarily elderly teachers, maintain that teaching of literature is a matter of education, not a matter of literature, and cultural studies is a branch of sociology, not of literature. The culture-oriented method is in fashion now because it keeps pace not only with recent trends of literary criticism but with various social changes in the post-War Japan. but nobody is able to see clearly if it solves the difficult question of education of literature once and for all, as is shown by a questionnaire made by a literary journal in 2002.