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Your search keyword '"Norman Yeung"' showing total 6 results
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6 results on '"Norman Yeung"'

1. Theory

Author

Norman Yeung and Norman Yeung

Published
2021

4. CT appearance of the Syed-Neblett device for interstitial brachytherapy of gynecologic malignancies

Author

Neville Glajchen, Richard Stock, Robert S. Shapiro, and Norman Yeung

Subjects
medicine.medical_specialty, Vaginal Neoplasms, Ovariectomy, medicine.medical_treatment, Brachytherapy, Health Informatics, Vaginal neoplasm, Adenocarcinoma, Hysterectomy, medicine, Carcinoma, Humans, Radiology, Nuclear Medicine and imaging, Fallopian Tubes, Radiological and Ultrasound Technology, business.industry, Interstitial brachytherapy, Neoplasms, Second Primary, Radiotherapy Dosage, Middle Aged, medicine.disease, Computer Graphics and Computer-Aided Design, Endometrial Neoplasms, Surgery, Radiation therapy, Female, Computer Vision and Pattern Recognition, Radiology, Implant, Tomography, X-Ray Computed, business
Abstract

Radiation therapy is an important adjuvant treatment for gynecological malignancies. However, the maximum amount of radiation treatment is limited by the side effects to the normal local tissue. We present a brief summary of the use and appearance of the Syed-Neblett intracavitary device. This device allows delivery of radioactive implants to a local tumor resulting in maximum dosage to tumor tissue, but limiting dosage to the surrounding normal tissue.

Published
1996

5. A 225mW 28Gb/s SerDes in 40nm CMOS with 13dB of analog equalization for 100GBASE-LR4 and optical transport lane 4.4 applications

Author

Alan Ren, Parmanand Mishra, Sean Batty, Albrecht Schoy, Mike Harwood, Martin Wetterhorn, Norman Yeung, Larry Kan, Jeff Sanders, Steffen Nielsen, Rohit Pande, Mike Case, Bob Killips, Simon Forey, Richard Allred, Karthik Gopalakrishnan, Andre Szczepanek, Richard Ward, and Hamid Rategh

Subjects
Engineering, CMOS, business.industry, Interface (computing), Equalization (audio), SerDes, Optical networking, Electronic engineering, Transceiver, Retiming, business, Jitter
Abstract

A key challenge in optical networking is the development of low-power transceivers that interface to optical sub-assemblies (TOSAs & ROSAs). While SiGe technologies are often selected for jitter performance with optical links, especially on the egress path to the transmit optics, lower-power and higher levels of digital integration often result from CMOS approaches [1]. This paper describes a generic CMOS 25-to-30Gb/s SerDes for use within CDR or gearbox applications, targeting the draft requirements of the OIF 28G-VSR standard [2] and suitable for both 100GBASE-LR4/OTL4.4 gearbox and retiming applications, including CFP and CFP2 [3].

Published
2012

6. Sonographic sign of intermittent dilatation of the renal collecting system in 10 patients with vesicoureteral reflux

Author

Norman Yeung and Brighita Weinberg

Subjects
Male, medicine.medical_specialty, Urinary system, Urology, Renal function, urologic and male genital diseases, Collection system, Vesicoureteral reflux, Cystourethrography, Ureter, Predictive Value of Tests, medicine, Humans, Radiology, Nuclear Medicine and imaging, In patient, Kidney Tubules, Collecting, Ultrasonography, Vesico-Ureteral Reflux, business.industry, Infant, medicine.disease, Prognosis, female genital diseases and pregnancy complications, medicine.anatomical_structure, Renal ultrasonography, Child, Preschool, Urinary Tract Infections, Female, business, Dilatation, Pathologic
Abstract

Purpose Renal sonography is an accepted primary imaging modality for evaluating the pediatric urinary tract. We report a new sonographic finding associated with vesicoureteral reflux (VUR). Methods Ten patients underwent sonographic evaluation of the kidneys and were noted to have intermittent renal collecting system dilatation that expanded and contracted during real-time scanning. These patients were further evaluated with voiding cystourethrography. Results All 10 patients were proven to have VUR on the side of the sonographic abnormality. Four patients had bilateral VUR for a total of 14 refluxing renal units. Of these 14 renal units, 1 was sonographically normal. Five of the 14 renal units had grade V VUR that required surgical reimplantation of the ureter. Conclusions. This new finding of intermittent renal collecting system dilatation may become an important predictor of VUR. The finding warrants further evaluation even when detected in patients not suspected of having VUR who are undergoing renal sonography for other reasons. © 1998 John Wiley & Sons, Inc. J Clin Ultrasound26: 65–68, 1998.

Published
1998

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