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Effect of loading rate on mechanical behavior of SRC shearwalls
Fumiya Esaki,Masayuki Ono 국제구조공학회 2001 Steel and Composite Structures, An International J Vol.1 No.2
In order to investigate the effect of the loading rate on the mechanical behavior of SRC shearwalls, we conducted the lateral loading tests on the 1/3 scale model shearwalls whose edge columns were reinforced by H-shaped steel. The specimens were subjected to the reversed cyclic lateral load under a variable axial load. The two types of loading rate, 0.01 cm/sec for the static loading and 1 cm/sec for the dynamic loading were adopted. The failure mode in all specimens was the sliding shear of the in-filled wall panel. The edge columns did not fail in shear. The initial lateral stiffness and lateral load carrying capacity of the shearwalls subjected to the dynamic loading were about 10% larger than those subjected to the static loading. The effects of the arrangement of the H-shaped steel on the lateral load carrying capacity and the lateral load-displacement hysteresis response were not significant.
LATERAL CANTHOTOMY-CONJUNCTIVAL APPROACH TO THE LATERAL AND INFERIOR ORBIT
Kameyama, Tadamitsu,Esaki, Seiji,Byun,Sook,Lee,Tae-Young,Kim,hyoun-Chul,Yoon,Ok-Byung 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1
협골체 골절시 접근방법은 안와하연에 대해 섬모하절개, 하안검절개, 안와하연절개 및 결막절개등이 사용되고 안와측벽, frontozygomatic suture에 대해서는 lateral brow incision, 상안검절개등이 사용되며 관상절개술은 frontozygomatic suture와 협고궁에 접근할 수 있다. 관상절개술을 제외한 접근방법은 한가지 절개술로 단지 한부위의 정복과 고정술이 가능하므로 결국 협골체 골절시 2점이상 고정을 할 경우 2가지 이상의 절개가 필요하게 된다. 이에 저자들은 관상절개술의 적응증이 아닌 협골체 골절에 lateral-canthotomy -conjunctival incision을 사용하여 안와하연 및 측벽의 골절부에 대한 정복술과 고정술을 시행하여 양호한 결과를 관찰하여 이에 보고하는 바이다. Various extraoral and intraoral approaches to reduction and fixation of zygomatic complex fractures were used. The method for exposure of inferior orbital area include the subciliary, inferior eyelid, infraorbital rim and conjunctions incisions. For exposure of frontozygomatic suture, lateral brow, coronal and b¹ephaloplasty incisions were used. It is necessary that the usual approaches to the inferior and lateral orbit have two incisions. However, lateral canthotomy-conjunctival approach presented on this paper provide optimal exposure to lateral and inferior orbit.
Shiraiwa, Masahiro,Fujii, Kotaro,Esaki, Yuichi,Kim, Su Jae,Lee, Seongsu,Yashima, Masatomo Electrochemical Society 2017 Journal of the Electrochemical Society Vol.164 No.13
<P>BaNdInO4 is a new structure family of oxide-ion conductors. In the present work, we have investigated the crystal structure and electrical conductivity of Ba1+xNd1-xInO4-x/2 where x is the excess Ba content. It was found that Ba1.1Nd0.9InO3.95 shows (i) about 12 times higher oxide-ion conductivity at 858 degrees C and (ii) a little lower activation energy for oxide-ion conduction than BaNdInO4. The higher oxide-ion conductivity of Ba1.1Nd0.9InO3.95 is mainly ascribed to higher carrier concentration. Careful structure analyses using both the single-crystal X-ray diffraction and time-of-flight (TOF) neutron powder diffraction data enabled to determine the position of excess Ba cation and occupancy factor of O anion. It was found that the excess Ba cation substitutes for Nd cation and that oxygen vacancies exist in Ba1.1Nd0.9InO3.95. The refined occupancy factor of oxygen atom 0.9829(17) indicates the higher concentration of oxygen vacancies in Ba1.1Nd0.9InO3.95, compared with BaNdInO4, giving higher oxide-ion conductivity in Ba1.1Nd0.9InO3.95. The larger-sized Ba substitution for Nd cation makes the bottleneck size larger, leading to the lower activation energy. The bond valence-based energy landscape calculated for the refined crystal structure of Ba1.1Nd0.9InO3.95 at 800 and 24 degrees C indicated two-dimensional oxide-ion diffusion in the A rare earth oxide (Nd, Ba)(2)O-3 unit on the bc plane. (c) 2017 The Electrochemical Society. All rights reserved.</P>