设计制备了导电 TiO 2材料，使用（NaPO 3）6对其进行表面活性处理，并与聚酰胺（PA）混合造粒，再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好，纺出的纤维具有良好的...设计制备了导电 TiO 2材料，使用（NaPO 3）6对其进行表面活性处理，并与聚酰胺（PA）混合造粒，再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好，纺出的纤维具有良好的导电性能。对其导电机理进行了研究，结果表明当导电 TiO 2含量＜7％时属于隧道导电，含量为10％~13％时属于隧道导电和欧姆导电组合导电，含量＞13％时以欧姆导电为主。展开更多
BACKGROUND Solid fuel use for cooking and heating is a major environmental risk factor,yet its association with new-onset heart disease(HD)remains unclear.The aim of this study was to investigate the relationship betw...BACKGROUND Solid fuel use for cooking and heating is a major environmental risk factor,yet its association with new-onset heart disease(HD)remains unclear.The aim of this study was to investigate the relationship between solid fuel exposure and new-onset HD in a large cohort.METHODS Multivariable logistic regression models assessed associations between cooking/heating fuel types(coal,crop residue/wood,liquefied petroleum gas,natural gas,and others)and new-onset HD.Subgroup analyses explored effect modification by age,sex,education,smoking,alcohol use,and region.RESULTS A prospective cohort study included 5915 participants,with 781 participants(13.2%)developing new-onset HD.Coal use for cooking showed an initial association with new-onset HD risk(OR=1.41,95%CI:1.06–1.86,P=0.02),which attenuated after full adjustment(OR=1.28,95%CI:0.96–1.72,P=0.10).Coal use for heating demonstrated robust associations across all models(OR=1.86,95%CI:1.42–2.43,P<0.001).Crop residue/wood burning for heating was also significant(Model 2:OR=1.40,95%CI:1.06–1.86,P=0.02).Subgroup analyses revealed stronger associations among females,non-smokers,non-drinkers,and less-educated participants.Geographic stratification showed significant associations in southern but not northern regions.CONCLUSIONS Solid fuel use,particularly coal for heating,is associated with increased new-onset HD risk.Reducing solid fuel exposure is crucial for HD prevention in low-resource settings.展开更多
文摘设计制备了导电 TiO 2材料，使用（NaPO 3）6对其进行表面活性处理，并与聚酰胺（PA）混合造粒，再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好，纺出的纤维具有良好的导电性能。对其导电机理进行了研究，结果表明当导电 TiO 2含量＜7％时属于隧道导电，含量为10％~13％时属于隧道导电和欧姆导电组合导电，含量＞13％时以欧姆导电为主。
基金supported by the Sichuan Provincial Cadre Health Research Project(ZH2024-101)the Key Natural Science Foundation of Sichuan Province(No.2025 ZNSFSC0053)。
文摘BACKGROUND Solid fuel use for cooking and heating is a major environmental risk factor,yet its association with new-onset heart disease(HD)remains unclear.The aim of this study was to investigate the relationship between solid fuel exposure and new-onset HD in a large cohort.METHODS Multivariable logistic regression models assessed associations between cooking/heating fuel types(coal,crop residue/wood,liquefied petroleum gas,natural gas,and others)and new-onset HD.Subgroup analyses explored effect modification by age,sex,education,smoking,alcohol use,and region.RESULTS A prospective cohort study included 5915 participants,with 781 participants(13.2%)developing new-onset HD.Coal use for cooking showed an initial association with new-onset HD risk(OR=1.41,95%CI:1.06–1.86,P=0.02),which attenuated after full adjustment(OR=1.28,95%CI:0.96–1.72,P=0.10).Coal use for heating demonstrated robust associations across all models(OR=1.86,95%CI:1.42–2.43,P<0.001).Crop residue/wood burning for heating was also significant(Model 2:OR=1.40,95%CI:1.06–1.86,P=0.02).Subgroup analyses revealed stronger associations among females,non-smokers,non-drinkers,and less-educated participants.Geographic stratification showed significant associations in southern but not northern regions.CONCLUSIONS Solid fuel use,particularly coal for heating,is associated with increased new-onset HD risk.Reducing solid fuel exposure is crucial for HD prevention in low-resource settings.
