Xufeng Jiang

  • Citations Per Year
Learn More
This paper presents the design and characterization of a 880-MHz class-E power amplifier (PA) designed to operate in a polar transmitter for EDGE signals. The amplifier is intended to be supplied from a 3.6 V battery using a linear amplifier as an envelope tracker, which limits the maximum drain voltage to 3.3 V. With a +7.6 dBm input signal the maximum(More)
This paper discusses a linear polar transmitter for EDGE signals with a total DC-to-RF efficiency of 56%. The transmitter is digitally-controlled, allowing for adjustments of delay, phase and amplitude. The amplifier is a 880-MHz class-E high-efficiency circuit with +20dBm output power and a PAE of 70%. Two different supply modulators are compared: a 18%(More)
We retrospectively analyzed iodine-131 metaiodobenzylguanidine (I-131 MIBG) scintigraphy in 320 patients (male, 108 cases; female, 211 cases; average age, 45±15 years). All patients received thyroid block before examination between 2007 and 2010 in our department. Various degrees of radioactivity were found in the thyroid glands or thyroid region after(More)
BACKGROUND Early experience demonstrated absorbed dose in radiation synovectomy is about 100 Gy. For reaching this dose, the applied radioactivity should be calculated. METHOD Twenty-nine synovitic models of rabbit were treated by intra-articular injection of [(188)Re]rhenium sulfide and histological changes of synovium and cartilage were examined. The(More)
BACKGROUND Our study aimed to demonstrate the feasibility of using the sodium/iodide symporter (NIS) to monitor vascular endothelial growth factor (VEGF165) expression in vivo. METHODS We constructed a recombinant lentivirus plasmid with the MLC-2v promoter driving the sodium/iodide symporter (NIS) reporter gene linked to the VEGF165 gene. Expression of(More)
UNLABELLED The first aim of our study was to compare the role of (18)F-FDG PET/CT with that of CT alone in detecting the primary cause of ascites. A secondary aim was to compare the value of (18)F-FDG PET/CT with that of CT alone in detecting abdominal cavity metastasis. Finally, we analyzed the receiver-operating-characteristic (ROC) curves of maximal(More)
BACKGROUND In recent years, the application of 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) for voluntary cancer screening of asymptomatic individuals is becoming more and more popular in China. However, the utility of such screening is still controversial. METHODS This study enrolled a total of 1,572(More)
OBJECTIVE To study the effectiveness of radiation synovectomy with (188)Re-sulfide. METHODS Twenty rabbit models of joint synovitis were injected intra-articularly with different doses of (188)Re-sulfide from 7.4 to 37.0 MBq. By pathological examination, the effects of (188)Re-sulfide on synovium and cartilage were evaluated. Clinically, 10 joints of 7(More)
  • 1