SiO Masers In Variable-Stars

NSF MPS 05070-76Astronom

METCAN: The metal matrix composite analyzer

Metal matrix composites (MMC) are the subject of intensive study and are receiving serious consideration for critical structural applications in advanced aerospace systems. MMC structural analysis and design methodologies are studied. Predicting the mechanical and thermal behavior and the structural response of components fabricated from MMC requires the use of a variety of mathematical models. These models relate stresses to applied forces, stress intensities at the tips of cracks to nominal stresses, buckling resistance to applied force, or vibration response to excitation forces. The extensive research in computational mechanics methods for predicting the nonlinear behavior of MMC are described. This research has culminated in the development of the METCAN (METal Matrix Composite ANalyzer) computer code

Validation Of The Coronal Thick Target Source Model

We present detailed 3D modeling of a dense, coronal thick target X-ray flare using the GX Simulator tool, photospheric magnetic measurements, and microwave imaging and spectroscopy data. The developed model offers a remarkable agreement between the synthesized and observed spectra and images in both X-ray and microwave domains, which validates the entire model. The flaring loop parameters are chosen to reproduce the emission measure, temperature, and the nonthermal electron distribution at low energies derived from the X-ray spectral fit, while the remaining parameters, unconstrained by the X-ray data, are selected such as to match the microwave images and total power spectra. The modeling suggests that the accelerated electrons are trapped in the coronal part of the flaring loop, but away from where the magnetic field is minimal, and, thus, demonstrates that the data are clearly inconsistent with electron magnetic trapping in the weak diffusion regime mediated by the Coulomb collisions. Thus, the modeling supports the interpretation of the coronal thick-target sources as sites of electron acceleration in flares and supplies us with a realistic 3D model with physical parameters of the acceleration region and flaring loop.Comment: 10 pages, 5 figures, ApJ in pres

Boundary regularity of conformally compact Einstein metrics

We show that C^2 conformally compact Riemannian Einstein metrics have conformal compactifications that are smooth up to the boundary in dimension 3 and all even dimensions, and polyhomogeneous in odd dimensions greater than 3.Comment: Latex2e, 25 pages. This is the final version accepted for publication in the Journal of Differential Geometr

Accounting for major development costs incurred in development of new oil reserves

Call number: LD2668 .R4 1964 L99

PENERAPAN SENAM KAKI PADA PASIEN DIABETES MELLITUS DENGAN MASALAH KEPERAWATAN KETIDAKEFEKTIFAN PERFUSI JARINGAN PERIFER DI RUANG PAVILIUN 3 RUMKITAL DR. RAMELAN SURABAYA

Diabetes Mellitus merupakan penyakit yang memiliki komplikasi paling banyak. Salah satu komplikasi penyakitnya yang sering dijumpai adalah luka ganggren. Maka dari itu perlu dilakukan senam kaki untuk mencegahnya. Tujuan penulisan ini adalah untuk mengetahui pengaruh penerapan senam kaki pada pasien diabetes mellitus dengan masalah keperawatan ketidakefektifan perfusi jaringan perifer di ruang paviliun 3 Rumkital Dr. Ramelan Surabaya. Metodenya yaitu studi kasus dengan melakukan anamnese terlebih dahulu pada pasien lalu setelah pengkajian, diagnosa, intervensi dan evaluasi ditemukan masalah maka disimpulkan suatu diagnosa yaitu ketidakefektifan perfusi jaringan perifer setelah itu diintervensi dan terakhir mengevaluasi hasil dari senam kaki. Penerapan senam kaki yang diberikan pada pasien setelah 3 hari berturut- turut selama 10-15 menit terjadi hasil yang baik, tanda-tanda vital dalam batas normal, Capillary Refill Time (CRT) kembali < 3 detik, perfusi hangat dan kaki pasien yang merasa nyeri karena adanya luka pada jarinya dengan skala 6 (sedang) dan berkurang menjadi skala 3 (ringan). Penerapan senam kaki yang diberikan pada pasien dapat memperbaiki sirkulasi darah pada kaki pasien. Perawatan yang diberikan bersifat membantu memperkuat otot-otot kecil kaki dan mencegah terjadinya kelainan bentuk kaki serta tanda-tanda vital kembali normal, CRT < 3 detik dan perfusi hangat, kering, merah

Improved accuracy for finite element structural analysis via a new integrated force method

A comparative study was carried out to determine the accuracy of finite element analyses based on the stiffness method, a mixed method, and the new integrated force and dual integrated force methods. The numerical results were obtained with the following software: MSC/NASTRAN and ASKA for the stiffness method; an MHOST implementation method for the mixed method; and GIFT for the integrated force methods. The results indicate that on an overall basis, the stiffness and mixed methods present some limitations. The stiffness method generally requires a large number of elements in the model to achieve acceptable accuracy. The MHOST method tends to achieve a higher degree of accuracy for course models than does the stiffness method implemented by MSC/NASTRAN and ASKA. The two integrated force methods, which bestow simultaneous emphasis on stress equilibrium and strain compatibility, yield accurate solutions with fewer elements in a model. The full potential of these new integrated force methods remains largely unexploited, and they hold the promise of spawning new finite element structural analysis tools