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目前显示的是标签为“Ultrasound”的博文

Neutron Back- and Front-Face Bragg Diffraction on a Thin Si Single Crystal Excited by Ultrasound

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53421#.VMG9WCzQrzE Author(s)     E. Raitman 1* , V. Gavrilov 1 , D. Mjasischev 1 , Ju. Ekmanis 1 , A. Hoser 2 , T. Hoffmann 2   Affiliation(s) 1 Institute of Physical Energetics, Riga, Latvia . 2 Helmholtz-Zentrum, BENSC, Berlin, Germany . ABSTRACT In this research project, we measured and analyzed the spatial distribution of neutron beam Bragg diffracted from the front- and back-faces of thin Si single crystal undergoing on ultrasound excitation. For the perfect crystal, it is shown that when the acoustic wave amplitude is increased, the front-face peak position remains unchanged and its value grows linearly. The values of ultrasound wave amplitude were determined. The back-face peak becomes asymmetric and tends to disappear. New types of Pendellosung fringes in the center of the diffraction profiles were observed at the first time. It is su...

Ultrasonographic Characteristics of Diabetes Impacts in Kidneys’ Morphology

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52012#.VH5uoWfHRK0 Author(s) Mohammed A. Ali Omer 1,2 , Ayman H. Eljack 1 , Mohamed E. M. Gar-alnabi 1 , Mustafa Z. Mahmoud 3 , Muatasim Elseid 1 , Ghada A. Edam 1 Affiliation(s) 1 College of Medical Radiologic Science, Sudan University of Science and Technology, Khartoum, Sudan . 2 College of Applied Medical Science, Department of Radiology, Qassim University, Buraidah, Saudi Arabia . 3 Radiology and Medical Imaging Department, College of Applied Medical Sciences, Salman bin Abdulaziz University, Al-Kharj, Saudi Arabia . ABSTRACT A total sample size consisting of 150 Diabetic male patients has been investigated by ultrasound s...

Development and Body Composition of Quarter Horse Foals during Nursing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51560#.VG2Wv2fHRK0 Author(s) Monica Miranda Hunka , Helena Emília Cavalcanti da Costa Cordeiro Manso , Ramona Bastos Bernardo , Elizabeth Regina Rodrigues da Silva , Lúcia Maia Cavalcante Ferreira , Hélio Cordeiro Manso Filho * Affiliation(s) Núcleo de Pesquisa Equina, Departamento de Zootecnia, Universidade Federal Rural de Pernambuco, Recife, Brazil . ABSTRACT The monitoring and development of foals, based on biometric indices, and the determination of body composition could be important for genetic improvement and the elaboration of nutritional plans for horses. Considering that little information was available, the aim of the...