This paper establishes a risk assessment index system for the natural gas industrial chain. China＇s natural gas industrial chain is entering a stage of rapid growth. In order to guarantee healthy development of the n...This paper establishes a risk assessment index system for the natural gas industrial chain. China＇s natural gas industrial chain is entering a stage of rapid growth. In order to guarantee healthy development of the natural gas industrial chain, it is urgent to establish a risk alert system, which is based on a risk assessment index system. First of all, the risks of the natural gas industrial chain are defined in the paper; then the risk factors are analyzed according to the present status of the natural gas industrial chain, and five categories of risk factors are summarized： resource risk, transport risk, marketing risk, risk of unbalanced chain links, and environment risk. The paper presents the principles of the risk assessment index system. The natural gas industrial chain risk assessment index system is established with four levels and forty-six risk indices.展开更多
OBJECTIVE: To observe the effects of Suhuang Zhike Capsule on pulmonary function, blood gas analysis index, serum PCT and CRP expression in patients with acute exacerbation of chronic obstructive pulmonary disease. ME...OBJECTIVE: To observe the effects of Suhuang Zhike Capsule on pulmonary function, blood gas analysis index, serum PCT and CRP expression in patients with acute exacerbation of chronic obstructive pulmonary disease. METHODS: A total of 88 patients with acute exacerbation of chronic obstructive pulmonary disease admitted to the Department of Respiratory Medicine, Xuancheng People's Hospital of Anhui Province from December 2014 to December 2016 were randomly divided into the observation group and the control group, with 44 cases in each group. The control group was given routine clinical treatment, and the observation group was given Suhuang Zhike Capsule on the basis of the treatment method of the control group. After 7 days' treatment, the improvement of lung function indexes were observed and evaluated before and after treatment(forced expiratory volume in one second(FEV_1), forced expiratory volume occupancy in the 1^(st) second percentage of vital capacity(FEVl/FVC), peak expiatory flow(PEF)), blood gas analysis index(Arterial oxygen partial pressure(PaO_2) and arterial blood carbon dioxide partial pressure(PaCO_2), oxygenation index(OI)) and serum cytokine levels(procalcitonin(PCT) and C reactive protein(CRP). RESULTS: The total effective rate of the observation group was significantly higher than that of the control group(P < 0.05). The FEV_1, FEV_1/FVC and PEF in 2 groups were significantly increased after the treatment(P < 0.05), and the above lung function indexes in the observation group were significantly higher than the control group(P < 0.05). PaO_2 and OI were significantly increased after the treatment(P < 0.05), PaCO_2 was significantly decreased after the treatment(P < 0.05), and the improvement of above blood gas analysis indexes were significantly superior of the observation group than the control group(P < 0.05). The serum PCT and CRP levels in 2 groups were significantly decreased after the treatment(P < 0.05), and the improvement in the observation group were more significant than that in the control group(P < 0.05). CONCLUSION: Suhuang Zhike Capsule can inhibit serum inflammatory cytokine levels in patients with acute exacerbation of chronic obstructive pulmonary disease, improve blood gas analysis indicators, and improve lung functions.展开更多
It was found out that the change of refractive index of ambient gas can lead to obvious change of the color of Morpho butterfly＇s wing. Such phenomenon has been employed as a sensing principle for detecting gas. In t...It was found out that the change of refractive index of ambient gas can lead to obvious change of the color of Morpho butterfly＇s wing. Such phenomenon has been employed as a sensing principle for detecting gas. In the present study, Rigorous Coupled-Wave Analysis （RCWA） was described briefly, and the partial derivative of optical reflection efficiency with respect to the refractive index of ambient gas, i.e., sensitivity of the sensor, was derived based on RCWA. A bioinspired grating model was constructed by mimicking the nanostructure on the ground scale of Morpho didius butterfly＇s wing. The analytical sensitivity was verified and the effect of the grating shape on the reflection spectra and its sensitivity were discussed. The results show that by tuning shape parameters of the grating, we can obtain desired reflection spectra and sensitivity, which can be applied to the design of the bioinspired refractive index based gas sensor.展开更多
目的构建急诊抢救室气管切开患者人工气道管理方案,并探讨其应用价值。方法通过查阅文献、总结临床经验,采用Delphi法构建急诊抢救室气管切开患者人工气道管理方案。前瞻性选取2022年2~11月首都医科大学附属北京同仁医院急诊抢救室收治...目的构建急诊抢救室气管切开患者人工气道管理方案,并探讨其应用价值。方法通过查阅文献、总结临床经验,采用Delphi法构建急诊抢救室气管切开患者人工气道管理方案。前瞻性选取2022年2~11月首都医科大学附属北京同仁医院急诊抢救室收治的141例实施气管切开术的患者作为研究对象,采用随机数字表法分为改良组与传统组。传统组采用常规人工气道管理干预,改良组采用基于Delphi法构建的人工气道管理方案干预,2组均连续干预至转出本科室。比较2组患者临床指标、痰液性状、动脉血气指标及术后并发症。结果改良组建立人工气道时间、机械通气时间、单次吸痰时间短于传统组,每日吸痰次数少于传统组,首次插管成功率高于传统组,差异有统计学意义(P<0.05)。干预1 d、干预3 d改良组患者痰液性状明显优于传统组,差异有统计学意义(P<0.05)。与干预前比较,2组患者干预1 d及干预3 d PaO_(2)呈现上升趋势,且各个时点之间比较差异有统计学意义(P<0.05);但组间、组间时点交互比较差异无统计学意义(P>0.05);与干预前比较,2组患者干预1 d及干预3 d PaCO_(2)均呈现出下降趋势,且各个时点,组间与时点交互比较差异有统计学意义(P<0.05),但组间比较,差异无统计学意义(P>0.05)。比较2组患者术后并发症,改良组明显低于传统组,差异有统计学意义(P<0.05)。结论构建急诊抢救室气管切开患者人工气道管理方案可有效减少术后并发症、缩短建立人工气道、机械通气与单次吸痰时间,减少吸痰次数,提高首次插管成功率,改善痰液性状。展开更多
基金This research is supported by CNPC Innovation Foundation.
文摘This paper establishes a risk assessment index system for the natural gas industrial chain. China＇s natural gas industrial chain is entering a stage of rapid growth. In order to guarantee healthy development of the natural gas industrial chain, it is urgent to establish a risk alert system, which is based on a risk assessment index system. First of all, the risks of the natural gas industrial chain are defined in the paper; then the risk factors are analyzed according to the present status of the natural gas industrial chain, and five categories of risk factors are summarized： resource risk, transport risk, marketing risk, risk of unbalanced chain links, and environment risk. The paper presents the principles of the risk assessment index system. The natural gas industrial chain risk assessment index system is established with four levels and forty-six risk indices.
文摘OBJECTIVE: To observe the effects of Suhuang Zhike Capsule on pulmonary function, blood gas analysis index, serum PCT and CRP expression in patients with acute exacerbation of chronic obstructive pulmonary disease. METHODS: A total of 88 patients with acute exacerbation of chronic obstructive pulmonary disease admitted to the Department of Respiratory Medicine, Xuancheng People's Hospital of Anhui Province from December 2014 to December 2016 were randomly divided into the observation group and the control group, with 44 cases in each group. The control group was given routine clinical treatment, and the observation group was given Suhuang Zhike Capsule on the basis of the treatment method of the control group. After 7 days' treatment, the improvement of lung function indexes were observed and evaluated before and after treatment(forced expiratory volume in one second(FEV_1), forced expiratory volume occupancy in the 1^(st) second percentage of vital capacity(FEVl/FVC), peak expiatory flow(PEF)), blood gas analysis index(Arterial oxygen partial pressure(PaO_2) and arterial blood carbon dioxide partial pressure(PaCO_2), oxygenation index(OI)) and serum cytokine levels(procalcitonin(PCT) and C reactive protein(CRP). RESULTS: The total effective rate of the observation group was significantly higher than that of the control group(P < 0.05). The FEV_1, FEV_1/FVC and PEF in 2 groups were significantly increased after the treatment(P < 0.05), and the above lung function indexes in the observation group were significantly higher than the control group(P < 0.05). PaO_2 and OI were significantly increased after the treatment(P < 0.05), PaCO_2 was significantly decreased after the treatment(P < 0.05), and the improvement of above blood gas analysis indexes were significantly superior of the observation group than the control group(P < 0.05). The serum PCT and CRP levels in 2 groups were significantly decreased after the treatment(P < 0.05), and the improvement in the observation group were more significant than that in the control group(P < 0.05). CONCLUSION: Suhuang Zhike Capsule can inhibit serum inflammatory cytokine levels in patients with acute exacerbation of chronic obstructive pulmonary disease, improve blood gas analysis indicators, and improve lung functions.
文摘It was found out that the change of refractive index of ambient gas can lead to obvious change of the color of Morpho butterfly＇s wing. Such phenomenon has been employed as a sensing principle for detecting gas. In the present study, Rigorous Coupled-Wave Analysis （RCWA） was described briefly, and the partial derivative of optical reflection efficiency with respect to the refractive index of ambient gas, i.e., sensitivity of the sensor, was derived based on RCWA. A bioinspired grating model was constructed by mimicking the nanostructure on the ground scale of Morpho didius butterfly＇s wing. The analytical sensitivity was verified and the effect of the grating shape on the reflection spectra and its sensitivity were discussed. The results show that by tuning shape parameters of the grating, we can obtain desired reflection spectra and sensitivity, which can be applied to the design of the bioinspired refractive index based gas sensor.
文摘目的构建急诊抢救室气管切开患者人工气道管理方案,并探讨其应用价值。方法通过查阅文献、总结临床经验,采用Delphi法构建急诊抢救室气管切开患者人工气道管理方案。前瞻性选取2022年2~11月首都医科大学附属北京同仁医院急诊抢救室收治的141例实施气管切开术的患者作为研究对象,采用随机数字表法分为改良组与传统组。传统组采用常规人工气道管理干预,改良组采用基于Delphi法构建的人工气道管理方案干预,2组均连续干预至转出本科室。比较2组患者临床指标、痰液性状、动脉血气指标及术后并发症。结果改良组建立人工气道时间、机械通气时间、单次吸痰时间短于传统组,每日吸痰次数少于传统组,首次插管成功率高于传统组,差异有统计学意义(P<0.05)。干预1 d、干预3 d改良组患者痰液性状明显优于传统组,差异有统计学意义(P<0.05)。与干预前比较,2组患者干预1 d及干预3 d PaO_(2)呈现上升趋势,且各个时点之间比较差异有统计学意义(P<0.05);但组间、组间时点交互比较差异无统计学意义(P>0.05);与干预前比较,2组患者干预1 d及干预3 d PaCO_(2)均呈现出下降趋势,且各个时点,组间与时点交互比较差异有统计学意义(P<0.05),但组间比较,差异无统计学意义(P>0.05)。比较2组患者术后并发症,改良组明显低于传统组,差异有统计学意义(P<0.05)。结论构建急诊抢救室气管切开患者人工气道管理方案可有效减少术后并发症、缩短建立人工气道、机械通气与单次吸痰时间,减少吸痰次数,提高首次插管成功率,改善痰液性状。
