GHz Range SAW Transducers Using Electron Beam Lithography

Nanometer electrodes of the order of 0.085 μm width have been fabricated using direct electron beam lithography, normal lift-off techniques and 0₂-plasma cleaning system. These techniques have been applied to Inter-Digital Transducers (IDТ) as surface acoustic wave (SAW) transducers in the GHz-range. We performed SAW filter experiments at GHz-range. Filters with minimum insertion loss of 16.0 dB at the center frequency of 5 GHz and 27 dB at 11 GHz were obtained.Zadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę

The Effects of Manganese and Sulphur on the Graphitization and Mechanical Properties of High Grade Cast Iron Annealed at Low Temperatures

By the low temperature annealing treatment of high grade cast irons for the release of casting stress, the degradation of the qualities of irons must be avoided. The purpose of this research is that the effects of the melting condition and the relation between manganese and sulphur to the low temperature annealing treatment are investigated. The annealing of the specimens was carried out at 500°, 550°and 600℃ for 6 hrs and then the specimens were cooled in a furnace. The results obtained are summarized as follows : (1) In as-cast and in annealing state, the mechanical properties of the cast irons by oxidizing refining are much lower than those of the cast irons by reducing refining. (2) In the plain high grade cast irons, the velocity of decomposition of carbide in annealing at 600℃ for 6 hrs is higher than that in annealing at and below 550℃. Therefore, because of the softening of pearlite matrix, the tensile strength and the hardness of specimens treated by the former procedure are much lower than those of specimens treated by the latter procedure. The lower the manganese content is, the larger becomes this tendency and the amounts of 0.80 to 1.00 per cent manganese is effective to prevent this tendency. (3) The rate of graphitization of the specimens prepared by oxidizing refining is maximum, when it contains 0.06 per cent sulphur and by this rapid graphitization, the mechanical properties of this specimens is reduced. (4) The rate of graphitization of the specimens prepared by reducing refining which contain 0.06 per cent sulphur is comparatively low and, as compared with the mechanical properties of the specimens prepared by reducing refining which contain 0.03 per cent sulphur, those of the former specimens are better

Behavioral Health Consultants in Rural Integrated Healthcare: A Systematic Replication and Program Evaluation

As the healthcare demand in the United States increases, the strain on available healthcare resources becomes more evident, marked by limited access to services and physician shortages. To meet growing patient demands, the Primary Care Behavioral Health (PCBH) model focuses on improving clinical outcomes, fiscal expenses, patient satisfaction, and provider satisfaction in primary care settings through the integration of behavioral health consultants (BHCs; Sandoval, Bell, Khatri, & Robinson, 2018). The present study was a systematic replication of a previously conducted program evaluation examining the impact of BHC services within a primary care practice in a rural Oregon county, focusing on provider satisfaction, patient satisfaction, and cost offsets. Results indicated significant increases in provider satisfaction compared to initial survey results in 2014. Positive levels for patient satisfaction were also reported. Fiscal decreases were minimal, with small effect sizes for ambulance services (d = 0.29), labs (d = 0.35), and facility expenses (d = 0.27). In all, results of the present study support the use of BHC services in the integrated primary care model to meet the needs of patients and providers alike