4篇
您的检索式：作者名="Junying Bi"
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| 1 | Nanoarchitectonics of MnO_(2)nanotubes as sea urchin-like aggregates for dielectric response and microwave absorption with a wide concentration domain显示文摘Designing highly reliable and practical microwave absorbers is one of the most important research directions in the microwave absorbing field.Many absorbents suffer from concentration-sensitivity and environmental-sensitivity dilemmas in practical applications.Here,sea urchin-like aggregates of MnO_(2)nanotubes were synthesized by a simple hydrothermal method,which exhibit an outstanding impedance matching characteristic.The composites based on sea urchin-like aggregates of MnO_(2)nanotubes show excellent microwave absorption performance in a wide concentration domain from 20 wt.%to 70 wt.%,corresponding to electrical conductivities from 1.86×10^(−7)to 1.85×10^(−5)S/m.Such a wide concentration range of absorbent for excellent microwave absorption is mainly attributed to the beneficial impedance matching properties of sea urchin-like aggregates of hollow nanotubes.A competitive absorption bandwidth of 3.36 GHz is achieved at 1 mm thickness,which can be broadened to 13.4 GHz by structural design.This work shows a new scheme for designing reliable and practical microwave absorbers benefit from the wide absorbent concentration domain. | Zhi-Ling Hou Kunrong Du Yiqin Zhang Song Bi Junying Zhang | 2023 | Nano Research2023，16，2： | 1 |
| 2 | Observations on the Diagnostic Effects of CT Examination(Enhanced Scan)on Hemorrhage Corpus Luteum Cyst显示文摘Objective:To investigate the diagnostic effects of enhanced CT scan on hemorrhage corpus luteum cyst(HCLC).Methods:The clinical data of 24 patients with hemorrhage corpus luteum cyst diagnosed by surgery and pathology in our hospital were collected.All patients received enhanced CT scan to evaluate the diagnostic value of CT.Results:The average diameter of the cysts in this group of patients was 5.1cm by CT.Further detection of the ruptured cyst wall showed that there was a liquid lowdensity shadow.Some of the cysts were accompanied by signs of increased density,indicating the presence of blood clots;all patients received surgical treatment.Intraoperative ultrasound examination of the cysts had an average diameter of 5.2cm and a wall of 0.2~0.4mm.Among them,19 cases of cysts contained'coffee-colored'liquid with varying degrees of blood clots,and 5 cases had no blood clots in the cysts but there were a lot of blood clots beside the cysts.Conclusion:The application of enhanced CT scan in patients with hemorrhage corpus luteum cyst is of great value.It can provide accurate data reference for clinical treatment and is worthy of promoting its clinical application. | Xiang Gao Heng Tang Lianglong Wu Zou Mei Liangjin Liu Junying Bi | 2020 | Proceedings of Anticancer Research2020，4，6： | 0 |
| 3 | Comparison of the Values of MRI in the Differential Diagnosis of Symptomatic Carotid Stenosis and Atherosclerotic Plaque显示文摘Objective:To evaluate the values of Carotid Magnetic Resonance Imaging(MRI)in the differential diagnosis of symptomatic carotid stenosis and atherosclerotic plaque.Methods:56 patients with ischemic cerebrovascular disease admitted in our hospital from October 2018 to October 2019 were selected and treated with Carotid MRI and digital subtraction angiography(DSA)examinations.According to the two examination results recorded and the“gold standard”of DSA examination,values of Carotid MRI in the differential diagnosis of symptomatic carotid stenosis were evaluated.Results:According to the“gold standard”of DSA examination,the sensitivity and specificity of MRI examination for carotid stenosis were:Mild:92.54%and 97.78%;Moderate:85.71%and 88.78%;Severe:100.00%and 97.8%;and complete occlusion:100.00%and 100.00%;The proportions of intraplaque haemorrhage and ruptured fibrous cap in different degrees of carotid artery stenosis were:Mild:30.16%and 22.22%;Moderate:43.48%and 39.13%;And severe:57.89%and 52.63%.Conclusion:MRI examination can evaluate the degree of symptomatic carotid artery stenosis,and show the characteristics of atherosclerotic plaque at the same time to provide a reference for early clinical differential diagnosis and treatment. | Junying Bi Yanni Zeng Jun Meng Tiantian Zhou Xiang Gao | 2020 | Proceedings of Anticancer Research2020，4，4： | 0 |
| 4 | Diagnostic Value of Spectral CT Reconstruction Mode for Carotid Atherosclerotic Plaque Lesions显示文摘Objective:To investigate the diagnostic value of spectral CT reconstruction mode for carotid atherosclerotic plaque lesions.Methods:From January 2017 to January 2019,70 patients with carotid atherosclerotic plaque lesions in our hospita1 were selected as the research object.A11 patients were diagnosed with cervical vascular color Doppler ultrasound and spectral CT scan under spectral cr reconstruction mode.Taking the results of coronaryf angiography as the'gold standard',the clinical value of the two examination methods in the diagnosis of carotid atherosclerotic plaque lesions was compared and analyzed.Results:Coronary angiography diagnosis confirmed that 33 of 70 patients with suspected carotid atherosclerotic plaque lesions had vulnerable plaques and 37 had stable plaques.The accuracy of Spectral CT examination of carotid artery plaque was 87.14%(61/70),sensitivity was 90.91%(30/33),specificity was 83.78%(31/37),and the positive predictive value was 83.33%(30/36),the negative predictive value is 91.76%(31/34),which is higher than that of cervical vascular ultrasonography(61.43%,60.61%,56.76%,57.89%,65.63%),the difference is statistically significant(P<0.05).Conclusion:The application of Spectral CT in the clinical diagnosis and treatment of carotid atherosclerotic plaque lesions with higher accuracy,sensitivity and specificity,is more significant and can provide a more reliable and effective imaging basis. | Junying Bi Yanni Zeng Jun Meng Tiantian Zhou Xiang Gao | 2020 | Journal of Clinical and Nursing Research2020，4，4： | 0 |
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