Miniature roses (Rosa sp.) were grown at 100 and 150 μmol m-2·s-1 photon flux densities (PFD) with 16, 20 and 24 h·day-1 lighting periods (LP) in a greenhouse compartment in midwinter at latitude 59° n...Miniature roses (Rosa sp.) were grown at 100 and 150 μmol m-2·s-1 photon flux densities (PFD) with 16, 20 and 24 h·day-1 lighting periods (LP) in a greenhouse compartment in midwinter at latitude 59° north. The study included 10 different treatments and six rose cultivars, altogether 900 plants. The 16 and 20 h LP were applied with or without a dark period of 8 and 4 h·day-1, respectively, by timing the LP in relation to daylight that lasted for 7 - 8 h. Number of days until flowering decreased with an increase in PFD and in LP up to 24 day-1 and was unaffected by the timing of the 16 and 20 h·day-1 LP. Number of flowers and plant dry weight increased 20% to 30% by increasing the PFD. Plant dry weight increased by increasing the LP from 16 to 20 h·day-1 (about 25%), but no effect was found with a further increase to 24 h·day-1. Mean growth rate until flowering increased 30% to 40% by increasing the PFD or by increasing the LP from 16 to 20 h day-1, while little effect was found by a further increase to 24 h·day-1. Increasing the photosynthetic active radiation (PAR) by increasing the LP from 16 to 20 h·day-1 increased the growth rate more than increasing the PFD did. Three of the cultivars were tested for water loss after the detachment of some leaves. Leaves that had developed without a dark period showed a considerably higher water loss than the treatments that included a dark period of 4 or 8 h·day-1. The keeping quality at indoor conditions, however, was unaffected by the treatment due to sufficient watering. Powdery mildew developed significantly more on plants grown with a dark period of 8 h as compared with the other treatments. It was concluded that 20 h·day-1 LP including a dark period of 4 h·day-1 and a PFD of at least 150 μmol·m-2·s-1 should be applied to miniature roses during the winter months in order to effectively produce miniature pot roses with a high quality.展开更多
目的探讨加速康复外科护理在全膝关节置换术患者围术期中的应用效果。方法选取2017年4月至2019年2月本院收治的142例全膝关节置换术患者作为研究对象,随机将其等分为观察组与对照组。对照组采用常规护理,观察组在对照组基础上采用加速...目的探讨加速康复外科护理在全膝关节置换术患者围术期中的应用效果。方法选取2017年4月至2019年2月本院收治的142例全膝关节置换术患者作为研究对象,随机将其等分为观察组与对照组。对照组采用常规护理,观察组在对照组基础上采用加速康复外科护理。比较两组视觉模拟评分(VAS)、膝关节评分(HSS)、日常生活能力评分(Barthel)和并发症发生情况。结果观察组术后1 d、2 d及3 d VAS评分优于对照组;术后1周、1个月、3个月及6个月HSS评分,Barthel指数均优于对照组(P<0.05)。观察组术后并发症总发生率低于对照组(P<0.05)。结论将加速康复外科护理应用于全膝关节置换术患者的围术期,可明显减轻患者疼痛,有助于患者膝关节功能和生活质量的恢复,减少术后并发症,值得临床推广应用。展开更多
The adjustment of primary hydrocarbon reservoirs in marine formations is an important feature of the oil pools in the Tarim Basin. Large-scale hydrocarbon adjustment is related to the strong regional tectonic movement...The adjustment of primary hydrocarbon reservoirs in marine formations is an important feature of the oil pools in the Tarim Basin. Large-scale hydrocarbon adjustment is related to the strong regional tectonic movements, which is always accompanied by extensive migration of basin fluids including diagenetic and mineralizing fluids. Organic fluid inclusions are well developed in hydrothermal minerals, such as fluorite, which have been found in the dissolution-enlarged fractures or karstification caves in the Ordovician in the central Tarim Basin. Proved by well drilling, the fluorite deposit is good reservoir for oil and gas. So the peculiar accompanied or superimposed relationship between fluorite hydrothermal fluid mineralization and hydrocarbon migration and accumulation exists in the Ordovician in the central Tarim Basin. Considering regional tectonic setting and mineralization condition, through different kinds of analytic methods including electron spin resonance dating, fluid inclusion laser Raman and colonial inclusions hydrocarbon fossil analysis, we proposed that extensive mineralizing fluids and hydrocarbon migration occurred in late Yanshan-Himalayan (110.4―30.8 Ma) period, and Himalayan, especially, is an important period for hydrocarbon accumulation from 34.3 Ma to present.展开更多
目的探讨呼吸导引康复技术联合吸气肌训练在慢性阻塞性肺疾病(COPD)稳定期患者中的应用价值。方法选择2022-01-01-2023-01-30河南中医药大学第一附属医院收治的90例COPD患者作为研究对象,根据组间基线资料均衡可比的原则,随机数字表法分...目的探讨呼吸导引康复技术联合吸气肌训练在慢性阻塞性肺疾病(COPD)稳定期患者中的应用价值。方法选择2022-01-01-2023-01-30河南中医药大学第一附属医院收治的90例COPD患者作为研究对象,根据组间基线资料均衡可比的原则,随机数字表法分为3组,分别为呼吸导引组、吸气肌训练组和联合组,每组各30例,所有患者均实施西医基础治疗和健康教育,呼吸导引组在此基础上实施呼吸导引康复技术,吸气肌训练组在此基础上实施吸气肌训练,联合组则在此基础上实施呼吸导引康复技术联合吸气肌训练。比较3组患者呼吸困难程度[改良呼吸困难指数(modified medical research council,mMRC)量表]、肺功能[第1秒用力呼气容积占预计值百分比(FEV_(1)%)、用力肺活量(FVC)和一氧化碳弥散量占预计值百分比(DLCO%)]、慢性阻塞性肺疾病评估测试(CAT)评分、圣乔治呼吸问卷(SGRQ)评分、6分钟步行距离(6MWD)、健康调查简表(the MOS item short from health survey,SF-36)评分、临床症状积分和慢性阻塞性肺疾病急性发作(AECOPD)次数。结果干预后,3组患者呼吸困难mMRC分级、CAT评分、SGRQ评分、临床症状积分均较干预前降低,均P<0.05;FEV_(1)%、FVC、DLCO%、6MWD、SF-36量表评分均较干预前升高,均P<0.05。干预后,联合组患者呼吸困难mMRC分级低于呼吸导引组和吸气肌训练组,均P<0.05;联合组患者FEV_(1)%为(85.18±9.03)%,高于呼吸导引组(78.34±9.33)%和吸气肌训练组(77.37±8.46)%,F=7.101,P=0.001;FVC为(2.35±0.37)L,高于呼吸导引组(2.05±0.22)L和吸气肌训练组(2.10±0.29)L,F=8.969,P<0.001;DLCO%为(78.78±8.05)%,高于呼吸导引组(72.28±7.35)%和吸气肌训练组(70.26±7.58)%,F=9.953,P<0.001;6MWD为(386.39±15.73)m,高于呼吸导引组(313.48±14.56)m和吸气肌训练组(310.57±13.04)m,F=256.012,P<0.001;SF-36量表评分为(86.39±7.85)分,高于呼吸导引组(73.48±8.04)分和吸气肌训练组(75.57±8.47)分,F=21.447,P<0.001。联合组患者CAT评分为(12.59±2.17)分,低于呼吸导引组(17.08±2.74)分和吸气肌训练组(16.85±3.13)分,F=25.903,P<0.001;SGRQ评分为(36.85±6.26)分,低于呼吸导引组(50.71±9.52)分和吸气肌训练组(47.28±6.18)分,F=27.448,P<0.001;临床症状积分为(4.45±1.07)分,低于呼吸导引组(6.62±1.73)分和吸气肌训练组(6.48±1.39)分,F=21.641,P<0.001。随访期间联合组患者急性发作0~4(2.43±1.37)次,低于呼吸导引组0~9(5.33±2.19)次和吸气训练组0~7(4.77±2.36)次,差异有统计学意义,F=17.449,P<0.001。结论呼吸导引康复技术和呼吸肌训练均是COPD稳定期患者肺康复的有效方法,两者联合应用可进一步降低患者呼吸困难的严重程度,改善患者肺功能,对患者运动耐力和生活质量的提高均有积极的作用,安全有效。展开更多
对放射性碘活度监测仪在核电厂调试期间出现的误报警问题进行分析。结果表明,仪表本底噪声、周围γ外辐射场和其他非测量核素统计在总计数中会引起测量值失真;若用131I探测效率计算131I^135I总放射性碘体积活度将引起测量结果失真。通...对放射性碘活度监测仪在核电厂调试期间出现的误报警问题进行分析。结果表明,仪表本底噪声、周围γ外辐射场和其他非测量核素统计在总计数中会引起测量值失真;若用131I探测效率计算131I^135I总放射性碘体积活度将引起测量结果失真。通过对放射性碘活度监测仪能量窗口设置区间合理性的分析论证,将测量能量窗口由100~2000 ke V改为310~410 ke V,仅监测131I,方案实施后仪表测量值准确,未再出现误报警。展开更多
文摘Miniature roses (Rosa sp.) were grown at 100 and 150 μmol m-2·s-1 photon flux densities (PFD) with 16, 20 and 24 h·day-1 lighting periods (LP) in a greenhouse compartment in midwinter at latitude 59° north. The study included 10 different treatments and six rose cultivars, altogether 900 plants. The 16 and 20 h LP were applied with or without a dark period of 8 and 4 h·day-1, respectively, by timing the LP in relation to daylight that lasted for 7 - 8 h. Number of days until flowering decreased with an increase in PFD and in LP up to 24 day-1 and was unaffected by the timing of the 16 and 20 h·day-1 LP. Number of flowers and plant dry weight increased 20% to 30% by increasing the PFD. Plant dry weight increased by increasing the LP from 16 to 20 h·day-1 (about 25%), but no effect was found with a further increase to 24 h·day-1. Mean growth rate until flowering increased 30% to 40% by increasing the PFD or by increasing the LP from 16 to 20 h day-1, while little effect was found by a further increase to 24 h·day-1. Increasing the photosynthetic active radiation (PAR) by increasing the LP from 16 to 20 h·day-1 increased the growth rate more than increasing the PFD did. Three of the cultivars were tested for water loss after the detachment of some leaves. Leaves that had developed without a dark period showed a considerably higher water loss than the treatments that included a dark period of 4 or 8 h·day-1. The keeping quality at indoor conditions, however, was unaffected by the treatment due to sufficient watering. Powdery mildew developed significantly more on plants grown with a dark period of 8 h as compared with the other treatments. It was concluded that 20 h·day-1 LP including a dark period of 4 h·day-1 and a PFD of at least 150 μmol·m-2·s-1 should be applied to miniature roses during the winter months in order to effectively produce miniature pot roses with a high quality.
文摘目的探讨加速康复外科护理在全膝关节置换术患者围术期中的应用效果。方法选取2017年4月至2019年2月本院收治的142例全膝关节置换术患者作为研究对象,随机将其等分为观察组与对照组。对照组采用常规护理,观察组在对照组基础上采用加速康复外科护理。比较两组视觉模拟评分(VAS)、膝关节评分(HSS)、日常生活能力评分(Barthel)和并发症发生情况。结果观察组术后1 d、2 d及3 d VAS评分优于对照组;术后1周、1个月、3个月及6个月HSS评分,Barthel指数均优于对照组(P<0.05)。观察组术后并发症总发生率低于对照组(P<0.05)。结论将加速康复外科护理应用于全膝关节置换术患者的围术期,可明显减轻患者疼痛,有助于患者膝关节功能和生活质量的恢复,减少术后并发症,值得临床推广应用。
基金the National Key Basic Research and Development Program of China (Grant No. 2006CB202304)
文摘The adjustment of primary hydrocarbon reservoirs in marine formations is an important feature of the oil pools in the Tarim Basin. Large-scale hydrocarbon adjustment is related to the strong regional tectonic movements, which is always accompanied by extensive migration of basin fluids including diagenetic and mineralizing fluids. Organic fluid inclusions are well developed in hydrothermal minerals, such as fluorite, which have been found in the dissolution-enlarged fractures or karstification caves in the Ordovician in the central Tarim Basin. Proved by well drilling, the fluorite deposit is good reservoir for oil and gas. So the peculiar accompanied or superimposed relationship between fluorite hydrothermal fluid mineralization and hydrocarbon migration and accumulation exists in the Ordovician in the central Tarim Basin. Considering regional tectonic setting and mineralization condition, through different kinds of analytic methods including electron spin resonance dating, fluid inclusion laser Raman and colonial inclusions hydrocarbon fossil analysis, we proposed that extensive mineralizing fluids and hydrocarbon migration occurred in late Yanshan-Himalayan (110.4―30.8 Ma) period, and Himalayan, especially, is an important period for hydrocarbon accumulation from 34.3 Ma to present.
文摘目的探讨呼吸导引康复技术联合吸气肌训练在慢性阻塞性肺疾病(COPD)稳定期患者中的应用价值。方法选择2022-01-01-2023-01-30河南中医药大学第一附属医院收治的90例COPD患者作为研究对象,根据组间基线资料均衡可比的原则,随机数字表法分为3组,分别为呼吸导引组、吸气肌训练组和联合组,每组各30例,所有患者均实施西医基础治疗和健康教育,呼吸导引组在此基础上实施呼吸导引康复技术,吸气肌训练组在此基础上实施吸气肌训练,联合组则在此基础上实施呼吸导引康复技术联合吸气肌训练。比较3组患者呼吸困难程度[改良呼吸困难指数(modified medical research council,mMRC)量表]、肺功能[第1秒用力呼气容积占预计值百分比(FEV_(1)%)、用力肺活量(FVC)和一氧化碳弥散量占预计值百分比(DLCO%)]、慢性阻塞性肺疾病评估测试(CAT)评分、圣乔治呼吸问卷(SGRQ)评分、6分钟步行距离(6MWD)、健康调查简表(the MOS item short from health survey,SF-36)评分、临床症状积分和慢性阻塞性肺疾病急性发作(AECOPD)次数。结果干预后,3组患者呼吸困难mMRC分级、CAT评分、SGRQ评分、临床症状积分均较干预前降低,均P<0.05;FEV_(1)%、FVC、DLCO%、6MWD、SF-36量表评分均较干预前升高,均P<0.05。干预后,联合组患者呼吸困难mMRC分级低于呼吸导引组和吸气肌训练组,均P<0.05;联合组患者FEV_(1)%为(85.18±9.03)%,高于呼吸导引组(78.34±9.33)%和吸气肌训练组(77.37±8.46)%,F=7.101,P=0.001;FVC为(2.35±0.37)L,高于呼吸导引组(2.05±0.22)L和吸气肌训练组(2.10±0.29)L,F=8.969,P<0.001;DLCO%为(78.78±8.05)%,高于呼吸导引组(72.28±7.35)%和吸气肌训练组(70.26±7.58)%,F=9.953,P<0.001;6MWD为(386.39±15.73)m,高于呼吸导引组(313.48±14.56)m和吸气肌训练组(310.57±13.04)m,F=256.012,P<0.001;SF-36量表评分为(86.39±7.85)分,高于呼吸导引组(73.48±8.04)分和吸气肌训练组(75.57±8.47)分,F=21.447,P<0.001。联合组患者CAT评分为(12.59±2.17)分,低于呼吸导引组(17.08±2.74)分和吸气肌训练组(16.85±3.13)分,F=25.903,P<0.001;SGRQ评分为(36.85±6.26)分,低于呼吸导引组(50.71±9.52)分和吸气肌训练组(47.28±6.18)分,F=27.448,P<0.001;临床症状积分为(4.45±1.07)分,低于呼吸导引组(6.62±1.73)分和吸气肌训练组(6.48±1.39)分,F=21.641,P<0.001。随访期间联合组患者急性发作0~4(2.43±1.37)次,低于呼吸导引组0~9(5.33±2.19)次和吸气训练组0~7(4.77±2.36)次,差异有统计学意义,F=17.449,P<0.001。结论呼吸导引康复技术和呼吸肌训练均是COPD稳定期患者肺康复的有效方法,两者联合应用可进一步降低患者呼吸困难的严重程度,改善患者肺功能,对患者运动耐力和生活质量的提高均有积极的作用,安全有效。
文摘对放射性碘活度监测仪在核电厂调试期间出现的误报警问题进行分析。结果表明,仪表本底噪声、周围γ外辐射场和其他非测量核素统计在总计数中会引起测量值失真;若用131I探测效率计算131I^135I总放射性碘体积活度将引起测量结果失真。通过对放射性碘活度监测仪能量窗口设置区间合理性的分析论证,将测量能量窗口由100~2000 ke V改为310~410 ke V,仅监测131I,方案实施后仪表测量值准确,未再出现误报警。
