No abstract

The development of gas turbines, Mitsubishi Hitachi Power Systems, Ltd. (MHPS) has continued to pursue and contribute to society in terms of global environmental conservation and stable energy supply. MHPS leverages its abundant gas turbine operation experience and takes advantage of its extensive advanced technologies research on the Japanese National Project. MHPS has been participating in this project since 2004. Recent years’ achievements include the demonstration of a gas turbine combined cycle (GTCC) efficiency in excess of 62% created by increasing the turbine inlet temperature to the 1,600°C class in the M501J in 2011. The Latest M701F incorporates “J” gas turbine technologies, already applied to actual equipment, for efficiency improvement. It also applies air-cooled combustor technologies successfully validated in the G class, for increased flexibility. The 1st unit started commercial operation in 2015 and currently 4 units has accumulated more than 46,000 actual operating hours collectively. MHPS is making the upgrading program for existing F-series gas turbines. The proven technology verified in the M501J and developed in the National project increases efficiency and reliability. This paper explains the features and development status of Latest M701F gas turbine, and explains upgrade program for existing F-series gas turbines.

[Purpose] The purpose of this study was to assess the reliability and construct validity of three observational measures of mobility for elderly inpatients with dementia. [Subjects and Methods] The subjects were 51 inpatients, who were aged 60 or over and diagnosed as having dementia (mean age ± SD, 84.4 ± 6.9; range 60-96 years). The Physical Performance and Mobility Examination (PPME), Hierarchical Assessment of Balance and Mobility (HABAM) and the Rivermead Mobility Index (RMI) were chosen as a measure to observe the mobility behaviors of persons with dementia, and the reliability and construct validity were investigated.[Results] Intraclass correlation coefficients (ICC) showed that all scales had a good inter-rater reliability (ICC>0.8) and testretest reliability (ICC>0.9). These scales significantly correlated with symptoms of dementia. Principal component analysis found a uni-factorial nature for the PPME and HABAM.[Conclusion] PPME and HABAM may be suitable measurement tools of mobility for elderly inpatients with dementia. Key words: elderly inpatient with dementia, mobility, measurement propertyPhysical performance and mobility examination PPME hierarchical assessment of balance and mobility HABAM rivermead mobility index RMI 3 0.8 0.9 PPME HABAM 1 3: 11-13 706-0023 TEL 0863-81-71252)3)

[Purpose] The purpose of this study was to clarify the time courses of intellectual function and behavioral symptoms before falls, using data from repeated measurements, by older inpatients with dementia.[Methods] Subjects were 51 individuals with dementia, aged 65 years or older, in hospitals during June 2007. Repeated measurements were administer weekly using Karasawa's clinical criterion of elderly persons' Intelligence and Dementia Behavior Disturbance scale, over a 6-month period. Changes of function of fallers during the 4 weeks prior to falls were compared with those of non-fallers. Analyses were conducted for the respective groups divided by ambulation status. [Results] In the ambulatory group, the intellectual function of fallers worsened significantly prior to falling. In the non-ambulatory group, both intellectual function and behavioral symptoms of fallers worsened significantly.[Conclusion] Fixed point observation with short measurement intervals of intellectual function and behavioral symptoms can be useful for fall prediction in hospitalized patients with dementia.