Preparation and Characteristics of Cloth Inductor
A cloth inductor consisting of mechanically interwoven amorphous ferromagnetic fibers and conducting fibers is described, and the inductor characteristics reported for various fiber lengths, diameters, and weaving patterns. The inductance L increases nearly in proportion to the fiber length, and in proportion to the second power of the amorphous fiber diameter and the second power of the number of conducting fiber turns per unit length, as expected. The leakage flux and total inductance also depend on the relative flux orientations of neighboring amorphous fibers.
Structure and characteristics of wire inductor.
The miniaturization of magnetic cores wound by copper wire is difficult because of the structure. In this paper the authors describe a miniaturized inductor containing amorphous magnetic wire which they have succeeded in realizing with a large inductance per unit volume. Further, the size of the inductor is smaller than that of inductors with conventional cores. The frequency characteristics of inductance of the wire inductor is controlled by the demagnetizing factor of the amorphous wire, and one thus can realize an inductor which operates in sub-MHz frequency domain.
PACU nurses & postoperative pain : A focused ethnography
....................... ...... .......................... ...... ............... VII I CHAPTER 1: INTRODUCTION ....................... .. .... .. .................... .. .. . 1 1.1 CONTEXT AND SIGNIFICANCE OF THE STUDY .................................................... 1 1.2 STATEMENT OF THE RESEARCH PROBLEM ........................................................ 2 1.3 PURPOSE OF THE STUDY ............................................................................... 3 1.3.1 Aim .................................................................................................................................... 3 1.3.2 Objectives .................................................................................................................... 3 1.4 STATEMENT OF THE RESEARCH QUESTION ....................................................... 4 1.5 ASSUMPTIONS ............................................................................................ 4 1.6 DEFINITIONS OF TERMS ................................................................................ 4 1.7 SUMMARY OF THE THESIS ............................................................................. 6 CHAPTER 2: LITERATURE REVIEW ........................ ...... .................. 8 2.1 INTRODUCTION ........................................................................................... 8 2.2 SEARCH STRATEGY ..................................................................................... 8 2.3 PAIN: AN OVERVIEW ................................................................................... 9 2.3.1 Defining Pain .............................................................................................................. 9 2.3.2 The Physiology of Acute Pain .................................................................... 12 2.3.3 Summary of the Pain Experience ............................................................. 14 2.4 SITUATING THE POST-ANAESTHETIC CARE UNIT ............................................. 16 2.4.1 A Brief History ....................................................................................................... 16 2.4.2 Postoperative Pain in the PACU ................................................................ 17 2.4.3 Challenges for the PACU Nurse ................................................................. 19 2.5 ASSESSING AND MANAGING POSTOPERATIVE PAIN .......................................... 20 2.5.1 Nurses’ Experiences, Perceptions and Strategies ....................... 21 2.5.2 The Complexity of Postoperative Pain Assessment and Management ............................................................................................................................... 24 2.6 ETHNOGRAPHY ......................................................................................... 26 2.6.1 An Introduction to Ethnography .............................................................. 26 2.6.2 Ethnography in Nursing Practice .............................................................. 26 2.6 SUMMARY ................................................................................................ 28