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double-channeled
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     ENERGY LOSS OF CHANNELED PARTICLES
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  double-channeled
Smelting of 09G2S steel in 430-ton, double-channeled, open-hearth furnaces
      


An analysis of findings in 15 cases of aortic dissection is presented in this paper with a discussion of the value and limitation of IV DSA in the diagnosis of this entity as correlated with the experience of conventional aortography.Female 7 and male 8, age ranged from 27 to 63 years with an average of 44.3.Type Ⅰ, Ⅱand Ⅲ according to the modified DeBakey classification were found in 1,3 and 11 cases, respectively, and all cases were chronic disease. In the demonstrations of double-channeled aorta, linear...

An analysis of findings in 15 cases of aortic dissection is presented in this paper with a discussion of the value and limitation of IV DSA in the diagnosis of this entity as correlated with the experience of conventional aortography.Female 7 and male 8, age ranged from 27 to 63 years with an average of 44.3.Type Ⅰ, Ⅱand Ⅲ according to the modified DeBakey classification were found in 1,3 and 11 cases, respectively, and all cases were chronic disease. In the demonstrations of double-channeled aorta, linear radiolucency due to intimal flap, intimal entry, extention of the dissection, re-entry and the invol-vement of aortic main branches etc. IV DSA was basically comparable with that of large film aortography. The image quality of DSA could satisfactorily meet the diagnostic requirement of aortic dissection. Of type Ⅲ dissection, conventional aortography might essentially be replaced by DSA. There is a certain limitation of IV DSA in showing dissection of ascending aorta (i. e. type Ⅰand Ⅱ), particularly the intimal flap floating in the lumen which usually occurs in cases of Marfan's syndrome with aneurysmal dilatation of the ascending aorta. Conventional aortography preferably cine-technique or intraarterial DSA should be performed n cases suspicious of havihg this kind of dissection. IV DSA may be superior to other type of contrast study in diagnostic evaluation of acute aortic dissection.The use of non-invasive techniques such as echocardiography and CT in the study of aortic dissection are briefly described and IV DSA as a less invasive technique may be more reliable in the evaluation of aortic dissection.

本文分析了15例主动脉夹层的DSA所见。作为少创性检查,本法有较高的价值,对Ⅲ型主动脉夹层的诊断基本上可取代普通主动脉造影。但对Ⅰ、Ⅱ型夹层于内膜片游离于升主动脉腔内者,DSA有较大限制。这种情况多见于Marfan氏主动脉瘤的Ⅰ型病变。

The content of bile acid in neoplastic and normal cells was determined by using a sensitive double-channeled microelectrode. The mean bile acid level was 17.59±1. 18×10(-5)mol/L in tumor cells(21 cases of colorectal carcinoma)and only 4. 58± 0. 66 × 10(-5) mol/L in cells of normal colon mucosa at a distance away from the tumor site(12 cases). The former was 3. 84 times higher than the fatter(P<0. 001).The bile acid level was also measured in fluid from mawed fluid of frozen colorectal cancer cells and...

The content of bile acid in neoplastic and normal cells was determined by using a sensitive double-channeled microelectrode. The mean bile acid level was 17.59±1. 18×10(-5)mol/L in tumor cells(21 cases of colorectal carcinoma)and only 4. 58± 0. 66 × 10(-5) mol/L in cells of normal colon mucosa at a distance away from the tumor site(12 cases). The former was 3. 84 times higher than the fatter(P<0. 001).The bile acid level was also measured in fluid from mawed fluid of frozen colorectal cancer cells and normal mucosa colon cells with radioimmunoassay kit and their mean values were1. 44±0. 20nmol/ml and 0. 36±0. 07nmol/ml respectively. The former was 3. 99 times higher than the latter(P<0. 001).The bile acid level in serum in 50 patients with colorectal carcinoma before operation was 2. 02-17. 55nmol/ml,with a mean of 5. 90±0. 50nmol/ml. Meanwhile, in 30 normal subjects the corresponding value was 2. 60±0. 24nmol/ml(P< 0.001).

作者用近期发展的对胆酸敏感的双通道离子选择性微电极检测21例肠癌活细胞内胆酸平均含量为17.59±1.18×10(-5)mol/L,12例距肠癌远端正常肠粘膜细胞内胆酸平均含量为4.58±0.66×10(-5)mol/L,前者是后者的3.84倍,两者比较差异有非常显著性(P〈0.001)。用放射免疫分析法(PEG法)检测23例肠癌细胞冻融液和远端正常肠粘膜细胞冻融液,胆酸平均含量分别为1.44±0.20nmol/ml和0.36±0.07nmol/ml,前者是后者的3.99倍,两者比较差异有非常显著性(P<0.001)。检测50例肠癌患者术前血清胆酸含量范围在2.02~17.55nmol/ml之间,平均为5.90±0.50nmol/ml;检测30例正常人血清胆酸含量范围在0.86~4.9nmol/ml之间,平均为2.60±0.24nmol/ml。两组比较差异有非常显著性(P<0.001)。

A kind of distributed feedback (DFB) diode laser module was developed for the use of Amplitude Modulation Cable Television (AMCATV) transmitter. The module is an InGaAsP/InP Double Channeled Planar Buried Heterostructure Distributed Feed Back (DC PBH DFB) diode laser emitting at 1.3 μm in butterfly peckage with an internal isolator. The modules provide CW linear output power of 2.5 mW and low distortion.

开发了一种用于光纤公用天线电视(CATV)的分布反馈激光二极管组件。组件包括1.3μmInGaAsP/InP双沟-平面掩埋双异质结(DC-PBH)分布反馈激光二极管和光隔离器,封装在蝴蝶型管壳内。组件的出纤线性功率为2.5mW,并具有极低的失真。

 
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