目的探究CT小肠造影(CTE)对结肠型克罗恩病与溃疡性结肠炎的诊断及鉴别诊断价值。方法选取蚌埠医学院第一附属医院和南京中医药大学附属江苏省中医院于2019年1月~2022年1月收治的结肠型克罗恩病患者36例和溃疡性结肠炎患者36例行CTE检查...目的探究CT小肠造影(CTE)对结肠型克罗恩病与溃疡性结肠炎的诊断及鉴别诊断价值。方法选取蚌埠医学院第一附属医院和南京中医药大学附属江苏省中医院于2019年1月~2022年1月收治的结肠型克罗恩病患者36例和溃疡性结肠炎患者36例行CTE检查,分别观察两组影像特征,结合实验室指标、临床表现对克罗恩病和溃疡性结肠炎患者进行回顾性分析。结果36例克罗恩病患者中,CTE影像示肠壁不均匀增厚21例、肠道狭窄22例、瘘管形成7例及累及升结肠21例,均高于溃疡性结肠炎患者,差异有统计学意义(P<0.05);36例溃疡性结肠炎患者,粘液便18例及血便22例高于克罗恩病患者(P<0.05),溃疡性结肠炎患者平均发病年龄较结肠型克罗恩病患者平均发病年龄大(P<0.05)。克罗恩病患者与溃疡性结肠炎患者的C反应蛋白及红细胞沉降率含量均值分别为28.17 mg/L vs 17.67 mg/L、32.25 mm/h vs 22.95 mm/h;C反应蛋白及红细胞沉降率含量的平均值对克罗恩病与溃疡性结肠炎的鉴别无统计学意义(P>0.05)。结论通过CTE影像特征更直观地对结肠型克罗恩病与溃疡性结肠炎进行鉴别,结合临床、内镜表现及病理诊断,为治疗方案设计提供更可靠的依据。展开更多
A novel balun structure for dipole antenna,which is based on the current distribution on parallel microstrip lines and the emission cancellation characteristic of close equal and opposite currents,is proposed.The prin...A novel balun structure for dipole antenna,which is based on the current distribution on parallel microstrip lines and the emission cancellation characteristic of close equal and opposite currents,is proposed.The principle of the balun structure is first elaborated and verified.Then,a dipole antenna with resonance at 2.45 GHz is constructed using the balun and its radiation pattern is measured.The simulated and measured reflection coefficients(S_(11))of the antenna are in good agreement 2—3 GHz.The relative bandwidth with an S_(11) of below-10 dB is more than 25%.The antenna also shows a good radiation pattern at 2.45 GHz.The proposed structure can provide a new balun design method for dipole antennas.展开更多
Characteristic Basis Function Method (CBFM) is a novel approach for analyzing the ElectroMagnetic (EM) scattering from electrically large objects. Based on dividing the studied object into small blocks, the CBFM is su...Characteristic Basis Function Method (CBFM) is a novel approach for analyzing the ElectroMagnetic (EM) scattering from electrically large objects. Based on dividing the studied object into small blocks, the CBFM is suitable for parallel computing. In this paper, a static load balance parallel method is presented by combining Message Passing Interface (MPI) with Adaptively Modified CBFM (AMCBFM). In this method, the object geometry is partitioned into distinct blocks, and the serial number of blocks is sent to related nodes according to a certain rule. Every node only needs to calculate the information on local blocks. The obtained results confirm the accuracy and efficiency of the proposed method in speeding up solving large electrical scale problems.展开更多
文摘目的探究CT小肠造影(CTE)对结肠型克罗恩病与溃疡性结肠炎的诊断及鉴别诊断价值。方法选取蚌埠医学院第一附属医院和南京中医药大学附属江苏省中医院于2019年1月~2022年1月收治的结肠型克罗恩病患者36例和溃疡性结肠炎患者36例行CTE检查,分别观察两组影像特征,结合实验室指标、临床表现对克罗恩病和溃疡性结肠炎患者进行回顾性分析。结果36例克罗恩病患者中,CTE影像示肠壁不均匀增厚21例、肠道狭窄22例、瘘管形成7例及累及升结肠21例,均高于溃疡性结肠炎患者,差异有统计学意义(P<0.05);36例溃疡性结肠炎患者,粘液便18例及血便22例高于克罗恩病患者(P<0.05),溃疡性结肠炎患者平均发病年龄较结肠型克罗恩病患者平均发病年龄大(P<0.05)。克罗恩病患者与溃疡性结肠炎患者的C反应蛋白及红细胞沉降率含量均值分别为28.17 mg/L vs 17.67 mg/L、32.25 mm/h vs 22.95 mm/h;C反应蛋白及红细胞沉降率含量的平均值对克罗恩病与溃疡性结肠炎的鉴别无统计学意义(P>0.05)。结论通过CTE影像特征更直观地对结肠型克罗恩病与溃疡性结肠炎进行鉴别,结合临床、内镜表现及病理诊断,为治疗方案设计提供更可靠的依据。
基金supported by the Fundamental Research Funds for the Central Universities (No. 30920140122005)the Research Innovation Program for College Graduates of Jiangsu Province (No.CXLX11_ 0198)
文摘A novel balun structure for dipole antenna,which is based on the current distribution on parallel microstrip lines and the emission cancellation characteristic of close equal and opposite currents,is proposed.The principle of the balun structure is first elaborated and verified.Then,a dipole antenna with resonance at 2.45 GHz is constructed using the balun and its radiation pattern is measured.The simulated and measured reflection coefficients(S_(11))of the antenna are in good agreement 2—3 GHz.The relative bandwidth with an S_(11) of below-10 dB is more than 25%.The antenna also shows a good radiation pattern at 2.45 GHz.The proposed structure can provide a new balun design method for dipole antennas.
文摘Characteristic Basis Function Method (CBFM) is a novel approach for analyzing the ElectroMagnetic (EM) scattering from electrically large objects. Based on dividing the studied object into small blocks, the CBFM is suitable for parallel computing. In this paper, a static load balance parallel method is presented by combining Message Passing Interface (MPI) with Adaptively Modified CBFM (AMCBFM). In this method, the object geometry is partitioned into distinct blocks, and the serial number of blocks is sent to related nodes according to a certain rule. Every node only needs to calculate the information on local blocks. The obtained results confirm the accuracy and efficiency of the proposed method in speeding up solving large electrical scale problems.
