Hydrothermal treatment has been widely applied in the synthesis of well crystalline calcium silicate hydrate（CSH）, such as tobermorite and xonotlite. However, both morphology and crystallinity of CSH are greatly aff...Hydrothermal treatment has been widely applied in the synthesis of well crystalline calcium silicate hydrate（CSH）, such as tobermorite and xonotlite. However, both morphology and crystallinity of CSH are greatly affected by the conditions of hydrothermal treatment including siliceous materials, temperature increase rate and isothermal periods. In this study, the influence of hydrothermal conditions on the growth of nano-crystalline CSH was investigated based on XRD analysis. Results showed that siliceous materials with amorphous nature（i e, nano silica powder） are beneficial to synthesize pure amorphous CSH, while the use of more crystallized siliceous materials（i e, diatomite and quartz powder） leads to producing crystalline CSH. Results also indicate that the formation of tobermorite and xonotlite is greatly affected by the temperature rise rate during hydrothermal treatment.展开更多
The"9.5"Luding earthquake(Ms 6.8),which occurred on September 5,2022,has triggered thousands of landslides,and caused coseismic landslide sediment in the mountain basin to increase significantly.After the Lu...The"9.5"Luding earthquake(Ms 6.8),which occurred on September 5,2022,has triggered thousands of landslides,and caused coseismic landslide sediment in the mountain basin to increase significantly.After the Luding earthquake,landslide sediment may continue to divert to channels,and increase the activity of debris flows.Importantly,the formation of debris flows can pose a major threat to infrastructure,lives and property.To better understand the landslide sediment that increased by the"9.5"Luding earthquake and its impact on the activity of debris flows,we mapped the coseismic landslide database using satellite images.A total of9142 landslides with an area of 49.51 km^(2),covering4.81%of the whole basin,were triggered by the Luding earthquake.The coseismic landslides induced by this earthquake are dominated by shallow landslides and are densely distributed in the combined zone of the Xianshuihe fault and the Daduhe fault.Approximately 333.31×10^(6)m^(3)(error:111.43×10^(6)m^(3)/-70.73×10^(6)m^(3))of coseismic landslide sediments were induced by the earthquake in the epicenter,and the landslide materials were concentrated downstream of the basins.In addition.more than 13986.45×10^(4)m^(3)(error:4675.67×10^(4)m^(3)/-2967.92×10^(4)m^(3))of landslide sediment may supply for debris flow occurrence.Simultaneously,the small basins that are distributed near Moxi,Detuo and the junction of the Xianshuihe fault and Daduhe fault are more susceptible to debris flows when rainstorms hit these regions.Therefore,prevention and mitigation measures,early warning,and land use planning should be adopted in advance in these regions.However,from the perspectives of landslide scale and the degree of landslide-channel coupling,the activity or active intensity of debris flows in the Luding earthquake area may be lower than that in the epicenter area of the 2008 Wenchuan earthquake.展开更多
目的探究疾病诊断相关分组(diagnosis related groups,DRGs)付费模式药师主导临床路径药学干预对用药合理性的影响。方法选取2021年8月至2024年9月赣州市人民医院住院的72例患者作为研究对象,按照不同药学干预方法分为A组与B组,每组36例...目的探究疾病诊断相关分组(diagnosis related groups,DRGs)付费模式药师主导临床路径药学干预对用药合理性的影响。方法选取2021年8月至2024年9月赣州市人民医院住院的72例患者作为研究对象,按照不同药学干预方法分为A组与B组,每组36例。A组实施常规用药管理,B组实施DRGs付费模式药师主导临床路径药学干预。比较两组住院时间及住院费用、用药情况(用药强度、用药费用、药品费用占比、药物利用指数)、不合理用药、不良反应发生情况。结果两组住院时间比较差异无统计学意义;B组住院费用低于A组,差异有统计学意义(P<0.05);B组用药强度、用药费用、药品费用占比、药物利用指数水平均低于A组,差异有统计学意义(P<0.05);B组不合理用药、不良反应总发生率低于A组,差异有统计学意义(P<0.05)。结论对神经内科住院患者实施DRGs付费模式药师主导临床路径药学干预,可满足治疗需求,减少患者住院费用,提升临床用药合理性。展开更多
Objective:To study the effect of adjuvant recombinant EPO therapy on neural functional recovery, inflammation and erythrocyte glucose metabolism in patients with severe craniocerebral injury.Methods:A total of 78 pati...Objective:To study the effect of adjuvant recombinant EPO therapy on neural functional recovery, inflammation and erythrocyte glucose metabolism in patients with severe craniocerebral injury.Methods:A total of 78 patients with severe craniocerebral injury treated in our hospital between May 2013 and March 2016 were selected and randomly divided into the EPO group and control group who received recombinant human erythropoietin (rhEPO) combined with conventional therapy and conventional therapy respectively. Before treatment as well as 7 d and 14 d after treatment, the degree of brain tissue hypoxia, nerve injury and inflammation as well as erythrocyte glucose metabolism were evaluated respectively.Results:PbtO2 levels, serum NGB and HGB content as well as PFK activity of both groups 7 d and 14 d after treatment were significantly higher than those before treatment while serum NF-H, NF-L, NF-M, NSE, S100β, IL-2, P-selectin and sICAM-1 content as well as G-6PD and AR activity were significantly lower than those before treatment;PbtO2 levels, serum NGB and HGB content as well as PFK activity of EPO group 7 d and 14 d after treatment were significantly higher than those of control group while serum NF-H, NF-L, NF-M, NSE, S100β, IL-2, P-selectin and sICAM-1 content as well as G-6PD and AR activity were significantly lower than those of control group.Conclusion:Adjuvant recombinant EPO therapy can inhibit inflammation and improve erythrocyte glucose metabolism to reduce the nerve injury degree in patients with severe craniocerebral injury.展开更多
【背景】由于先进建模、管控与智能网联化技术的不断融入,可变限速控制技术作为高速公路交通控制的重要手段之一,正处于技术革新与建设落地并存、控制手段与控制对象不断演化的重要发展节点。【目标】探究迈向智能网联的可变限速控制技...【背景】由于先进建模、管控与智能网联化技术的不断融入,可变限速控制技术作为高速公路交通控制的重要手段之一,正处于技术革新与建设落地并存、控制手段与控制对象不断演化的重要发展节点。【目标】探究迈向智能网联的可变限速控制技术演进路线与未来可能的发展方向,并帮助工程技术人员在进行相关应用和工程实践时,快速提取可能关注的核心要素。【方法】基于“控制目标-控制手段-控制策略-测试验证”逻辑链,对可变限速策略的技术演进和工程应用进行梳理,并使用Citespace工具对文献进行可视化分析。【数据】中国知网近10年(2013—2023)174篇相关文献,Web of Science近20年(2003—2024)978篇相关文献,以及美国、欧洲与国内14个较为典型的可变限速工程应用。【结论】梳理并验证了可变限速技术从理论技术突破到实际场景导向再到管控手法革新和要素精细化分析的发展历程,讨论了其在智能网联技术支撑下的“精细化-适用性-协同性”发展方向。展开更多
基金Funded by the Fundamental Research Funds for the Central Universities(No.2018CDXYCL0018)the National Natural Science Foundation of China(NSFC)(No.51678093)the National Youth Fund(No.51402029)
文摘Hydrothermal treatment has been widely applied in the synthesis of well crystalline calcium silicate hydrate（CSH）, such as tobermorite and xonotlite. However, both morphology and crystallinity of CSH are greatly affected by the conditions of hydrothermal treatment including siliceous materials, temperature increase rate and isothermal periods. In this study, the influence of hydrothermal conditions on the growth of nano-crystalline CSH was investigated based on XRD analysis. Results showed that siliceous materials with amorphous nature（i e, nano silica powder） are beneficial to synthesize pure amorphous CSH, while the use of more crystallized siliceous materials（i e, diatomite and quartz powder） leads to producing crystalline CSH. Results also indicate that the formation of tobermorite and xonotlite is greatly affected by the temperature rise rate during hydrothermal treatment.
基金financially supported by the National Natural Science Foundation of China(Grant No.U21A2008)the Second Tibetan Plateau Scientific Expedition and Research Program(STEP)(Grant No.2019QZKK0902)+1 种基金Science and Technology Project of Tibet Autonomous Region(Grant No.XZ202101ZD0001G)CAS Light of West China Program。
文摘The"9.5"Luding earthquake(Ms 6.8),which occurred on September 5,2022,has triggered thousands of landslides,and caused coseismic landslide sediment in the mountain basin to increase significantly.After the Luding earthquake,landslide sediment may continue to divert to channels,and increase the activity of debris flows.Importantly,the formation of debris flows can pose a major threat to infrastructure,lives and property.To better understand the landslide sediment that increased by the"9.5"Luding earthquake and its impact on the activity of debris flows,we mapped the coseismic landslide database using satellite images.A total of9142 landslides with an area of 49.51 km^(2),covering4.81%of the whole basin,were triggered by the Luding earthquake.The coseismic landslides induced by this earthquake are dominated by shallow landslides and are densely distributed in the combined zone of the Xianshuihe fault and the Daduhe fault.Approximately 333.31×10^(6)m^(3)(error:111.43×10^(6)m^(3)/-70.73×10^(6)m^(3))of coseismic landslide sediments were induced by the earthquake in the epicenter,and the landslide materials were concentrated downstream of the basins.In addition.more than 13986.45×10^(4)m^(3)(error:4675.67×10^(4)m^(3)/-2967.92×10^(4)m^(3))of landslide sediment may supply for debris flow occurrence.Simultaneously,the small basins that are distributed near Moxi,Detuo and the junction of the Xianshuihe fault and Daduhe fault are more susceptible to debris flows when rainstorms hit these regions.Therefore,prevention and mitigation measures,early warning,and land use planning should be adopted in advance in these regions.However,from the perspectives of landslide scale and the degree of landslide-channel coupling,the activity or active intensity of debris flows in the Luding earthquake area may be lower than that in the epicenter area of the 2008 Wenchuan earthquake.
文摘目的探究疾病诊断相关分组(diagnosis related groups,DRGs)付费模式药师主导临床路径药学干预对用药合理性的影响。方法选取2021年8月至2024年9月赣州市人民医院住院的72例患者作为研究对象,按照不同药学干预方法分为A组与B组,每组36例。A组实施常规用药管理,B组实施DRGs付费模式药师主导临床路径药学干预。比较两组住院时间及住院费用、用药情况(用药强度、用药费用、药品费用占比、药物利用指数)、不合理用药、不良反应发生情况。结果两组住院时间比较差异无统计学意义;B组住院费用低于A组,差异有统计学意义(P<0.05);B组用药强度、用药费用、药品费用占比、药物利用指数水平均低于A组,差异有统计学意义(P<0.05);B组不合理用药、不良反应总发生率低于A组,差异有统计学意义(P<0.05)。结论对神经内科住院患者实施DRGs付费模式药师主导临床路径药学干预,可满足治疗需求,减少患者住院费用,提升临床用药合理性。
文摘Objective:To study the effect of adjuvant recombinant EPO therapy on neural functional recovery, inflammation and erythrocyte glucose metabolism in patients with severe craniocerebral injury.Methods:A total of 78 patients with severe craniocerebral injury treated in our hospital between May 2013 and March 2016 were selected and randomly divided into the EPO group and control group who received recombinant human erythropoietin (rhEPO) combined with conventional therapy and conventional therapy respectively. Before treatment as well as 7 d and 14 d after treatment, the degree of brain tissue hypoxia, nerve injury and inflammation as well as erythrocyte glucose metabolism were evaluated respectively.Results:PbtO2 levels, serum NGB and HGB content as well as PFK activity of both groups 7 d and 14 d after treatment were significantly higher than those before treatment while serum NF-H, NF-L, NF-M, NSE, S100β, IL-2, P-selectin and sICAM-1 content as well as G-6PD and AR activity were significantly lower than those before treatment;PbtO2 levels, serum NGB and HGB content as well as PFK activity of EPO group 7 d and 14 d after treatment were significantly higher than those of control group while serum NF-H, NF-L, NF-M, NSE, S100β, IL-2, P-selectin and sICAM-1 content as well as G-6PD and AR activity were significantly lower than those of control group.Conclusion:Adjuvant recombinant EPO therapy can inhibit inflammation and improve erythrocyte glucose metabolism to reduce the nerve injury degree in patients with severe craniocerebral injury.
文摘【背景】由于先进建模、管控与智能网联化技术的不断融入,可变限速控制技术作为高速公路交通控制的重要手段之一,正处于技术革新与建设落地并存、控制手段与控制对象不断演化的重要发展节点。【目标】探究迈向智能网联的可变限速控制技术演进路线与未来可能的发展方向,并帮助工程技术人员在进行相关应用和工程实践时,快速提取可能关注的核心要素。【方法】基于“控制目标-控制手段-控制策略-测试验证”逻辑链,对可变限速策略的技术演进和工程应用进行梳理,并使用Citespace工具对文献进行可视化分析。【数据】中国知网近10年(2013—2023)174篇相关文献,Web of Science近20年(2003—2024)978篇相关文献,以及美国、欧洲与国内14个较为典型的可变限速工程应用。【结论】梳理并验证了可变限速技术从理论技术突破到实际场景导向再到管控手法革新和要素精细化分析的发展历程,讨论了其在智能网联技术支撑下的“精细化-适用性-协同性”发展方向。
