在“双碳”目标下石油化工等高碳排放企业进行低碳转型,降低碳排放已成为重要发展趋势,其中油气损耗在石化行业总能耗中占比较大。针对目前方法无法依据油气损耗数据变化规律自动识别高值点环节的问题,提出了一种基于过阈值模型的油气...在“双碳”目标下石油化工等高碳排放企业进行低碳转型,降低碳排放已成为重要发展趋势,其中油气损耗在石化行业总能耗中占比较大。针对目前方法无法依据油气损耗数据变化规律自动识别高值点环节的问题,提出了一种基于过阈值模型的油气损耗高值点环节自动识别方法。对胜利油田某采油区的35个环节进行油气损耗核算。依据核算数据尖峰厚尾的分布特征,利用过阈值模型分割油气损耗数据中的尾部数据并拟合其概率分布函数,依据3σ原则识别概率分布函数中对应的油气损耗高值点环节。结果确定高值点阈值为869.34 m 3/d,高值点环节识别准确率为0.986,相较于其他传统方法,该方法识别结果更准确,有利于损耗治理工作的高效展开。展开更多
Find It What did the old woman give Lucy?Once upon a time,a poor girl named Lucy lived in a small village.She was kind and helped others when she could.But she and her mother were often very hungry because they were p...Find It What did the old woman give Lucy?Once upon a time,a poor girl named Lucy lived in a small village.She was kind and helped others when she could.But she and her mother were often very hungry because they were poor.展开更多
Correction:J Cotton Res 8,27(2025)https://doi.org/10.1186/s42397-025-00228-y During the publication process of the original article(Soltani Toularoud et al.2025),the article title has been wrongly captured.Te article ...Correction:J Cotton Res 8,27(2025)https://doi.org/10.1186/s42397-025-00228-y During the publication process of the original article(Soltani Toularoud et al.2025),the article title has been wrongly captured.Te article title should be corrected from:of butisanstar and clopyralid herbicides on Gos-sypium hirsutum L.growth:insights from a pot experiment to:Residual efects of butisanstar and clopyralid herbi-cides on Gossypium hirsutum L.growth:insights from a pot experiment Te original article(Soltani Toularoud et al.2025)has been updated.Te publisher apologizes to the authors and readers for the inconvenience caused.展开更多
In the past century,industrial and economic growth relied heavily on fossil fuels such as coal,oil,and natural gas.As the society energy demands continue to grow,these fossil fuel reserves are depleted,leading to sign...In the past century,industrial and economic growth relied heavily on fossil fuels such as coal,oil,and natural gas.As the society energy demands continue to grow,these fossil fuel reserves are depleted,leading to significant environmental issues[1].Currently,sustainable biomass resources have attracted much attention as potential substitutes to fossil fuels for producing biofuels and commodity chemicals[2].展开更多
Postural tachycardia syndrome(POTS)is a chronic autonomic disorder characterized by excessive heart rate elevation upon standing or head-up tilt,in the absence of orthostatic hypotension.This debilitating condition af...Postural tachycardia syndrome(POTS)is a chronic autonomic disorder characterized by excessive heart rate elevation upon standing or head-up tilt,in the absence of orthostatic hypotension.This debilitating condition affects primarily young to middle-aged individuals,particularly women,and substantially influences quality of life.The main present-ing symptoms are lightheadedness,palpitations,exercise intolerance,and cognitive impairment.POTS is of particular importance to cardiologists,given its prominent cardiovascular symptoms.The diagnostic criteria for POTS include a sustained heart rate increase of more than 30 beats per minute upon standing or head-up tilt;symptoms of orthostatic intolerance lasting at least 3 months;and exclusion of other causes.The exact etiology of POTS is unknown,but mul-tiple possible etiologies leading to a similar clinical phenotype have been proposed.Early intervention and appropri-ate management can improve symptoms.Treatment strategies include lifestyle modifications,pharmacotherapy,and tailored conditioning programs.Non-pharmacologic options are the first line treatment.Prognosis varies widely:POTS can be a temporary condition for some individuals but a chronic and debilitating condition for others.Further research is necessary to elucidate the pathophysiology and optimize treatment strategies for this condition.展开更多
Water is the source of life. China ranks No.13 among the water shortage countries. The most of the water is utilized in agriculture, while the utilization rate of irrigation water is only 40%, so it is very important ...Water is the source of life. China ranks No.13 among the water shortage countries. The most of the water is utilized in agriculture, while the utilization rate of irrigation water is only 40%, so it is very important to study on the theory and technology on high efficient water utilization. The purpose for this study is to find out the optimal drainage line on potted flowers through the analysis of experimental results of Aglaonema modestum and Rhododendron simsii Planch in different drainage lines.展开更多
文摘在“双碳”目标下石油化工等高碳排放企业进行低碳转型,降低碳排放已成为重要发展趋势,其中油气损耗在石化行业总能耗中占比较大。针对目前方法无法依据油气损耗数据变化规律自动识别高值点环节的问题,提出了一种基于过阈值模型的油气损耗高值点环节自动识别方法。对胜利油田某采油区的35个环节进行油气损耗核算。依据核算数据尖峰厚尾的分布特征,利用过阈值模型分割油气损耗数据中的尾部数据并拟合其概率分布函数,依据3σ原则识别概率分布函数中对应的油气损耗高值点环节。结果确定高值点阈值为869.34 m 3/d,高值点环节识别准确率为0.986,相较于其他传统方法,该方法识别结果更准确,有利于损耗治理工作的高效展开。
文摘Find It What did the old woman give Lucy?Once upon a time,a poor girl named Lucy lived in a small village.She was kind and helped others when she could.But she and her mother were often very hungry because they were poor.
文摘Correction:J Cotton Res 8,27(2025)https://doi.org/10.1186/s42397-025-00228-y During the publication process of the original article(Soltani Toularoud et al.2025),the article title has been wrongly captured.Te article title should be corrected from:of butisanstar and clopyralid herbicides on Gos-sypium hirsutum L.growth:insights from a pot experiment to:Residual efects of butisanstar and clopyralid herbi-cides on Gossypium hirsutum L.growth:insights from a pot experiment Te original article(Soltani Toularoud et al.2025)has been updated.Te publisher apologizes to the authors and readers for the inconvenience caused.
基金funded by the Master,PhD Scholarship Programme of Vingroup Innovation Foundation(VINIF),code VINIF.2024.TS.035funded by Vietnam National University,Ho Chi Minh City(VNUHCM)under grant number NCM2024-18-01。
文摘In the past century,industrial and economic growth relied heavily on fossil fuels such as coal,oil,and natural gas.As the society energy demands continue to grow,these fossil fuel reserves are depleted,leading to significant environmental issues[1].Currently,sustainable biomass resources have attracted much attention as potential substitutes to fossil fuels for producing biofuels and commodity chemicals[2].
文摘Postural tachycardia syndrome(POTS)is a chronic autonomic disorder characterized by excessive heart rate elevation upon standing or head-up tilt,in the absence of orthostatic hypotension.This debilitating condition affects primarily young to middle-aged individuals,particularly women,and substantially influences quality of life.The main present-ing symptoms are lightheadedness,palpitations,exercise intolerance,and cognitive impairment.POTS is of particular importance to cardiologists,given its prominent cardiovascular symptoms.The diagnostic criteria for POTS include a sustained heart rate increase of more than 30 beats per minute upon standing or head-up tilt;symptoms of orthostatic intolerance lasting at least 3 months;and exclusion of other causes.The exact etiology of POTS is unknown,but mul-tiple possible etiologies leading to a similar clinical phenotype have been proposed.Early intervention and appropri-ate management can improve symptoms.Treatment strategies include lifestyle modifications,pharmacotherapy,and tailored conditioning programs.Non-pharmacologic options are the first line treatment.Prognosis varies widely:POTS can be a temporary condition for some individuals but a chronic and debilitating condition for others.Further research is necessary to elucidate the pathophysiology and optimize treatment strategies for this condition.
文摘Water is the source of life. China ranks No.13 among the water shortage countries. The most of the water is utilized in agriculture, while the utilization rate of irrigation water is only 40%, so it is very important to study on the theory and technology on high efficient water utilization. The purpose for this study is to find out the optimal drainage line on potted flowers through the analysis of experimental results of Aglaonema modestum and Rhododendron simsii Planch in different drainage lines.
