Partial least squares(PLS)model is the most typical data-driven method for quality-related industrial tasks like soft sensor.However,only linear relations are captured between the input and output data in the PLS.It i...Partial least squares(PLS)model is the most typical data-driven method for quality-related industrial tasks like soft sensor.However,only linear relations are captured between the input and output data in the PLS.It is difficult to obtain the remaining nonlinear information in the residual subspaces,which may deteriorate the prediction performance in complex industrial processes.To fully utilize data information in PLS residual subspaces,a deep residual PLS(DRPLS)framework is proposed for quality prediction in this paper.Inspired by deep learning,DRPLS is designed by stacking a number of PLSs successively,in which the input residuals of the previous PLS are used as the layer connection.To enhance representation,nonlinear function is applied to the input residuals before using them for stacking highlevel PLS.For each PLS,the output parts are just the output residuals from its previous PLS.Finally,the output prediction is obtained by adding the results of each PLS.The effectiveness of the proposed DRPLS is validated on an industrial hydrocracking process.展开更多
Heart failure with preserved ejection fraction(HFpEF)displays normal or near-normal left ventricular ejection fraction,diastolic dysfunction,cardiac hypertrophy,and poor exercise capacity.Berberine,an isoquinoline alk...Heart failure with preserved ejection fraction(HFpEF)displays normal or near-normal left ventricular ejection fraction,diastolic dysfunction,cardiac hypertrophy,and poor exercise capacity.Berberine,an isoquinoline alkaloid,possesses cardiovascular benefits.Adult male mice were assigned to chow or high-fat diet with L-NAME(“two-hit”model)for 15 weeks.Diastolic function was assessed using echocardiography and noninvasive Doppler technique.Myocardial morphology,mitochondrial ultrastructure,and cardiomyocyte mechanical properties were evaluated.Proteomics analysis,autophagic flux,and intracellular Ca^(2+)were also assessed in chow and HFpEF mice.The results show exercise intolerance and cardiac diastolic dysfunction in“two-hit”-induced HFpEF model,in which unfavorable geometric changes such as increased cell size,interstitial fibrosis,and mitochondrial swelling occurred in the myocardium.Diastolic dysfunction was indicated by the elevated E value,mitral E/A ratio,and E/e’ratio,decreased e’value and maximal velocity of re-lengthening(-dL/dt),and prolonged re-lengthening in HFpEF mice.The effects of these processes were alleviated by berberine.Moreover,berberine ameliorated autophagic flux,alleviated Drp1 mitochondrial localization,mitochondrial Ca^(2+)overload and fragmentation,and promoted intracellular Ca^(2+)reuptake into sarcoplasmic reticulum by regulating phospholamban and SERCA2a.Finally,berberine alleviated diastolic dysfunction in“two-hit”diet-induced HFpEF model possibly because of the promotion of autophagic flux,inhibition of mitochondrial fragmentation,and cytosolic Ca^(2+)overload.展开更多
[目的]研究饲料钙对母鼠饮水型氟染毒后子代大鼠肾细胞线粒体损伤的影响。[方法]选用健康初断乳SD雌性大鼠100只,随机分为对照组、染氟组(100 mg/L Na F)、低钙组(0.063%CaCO_3)、低钙染氟组(100 mg/L Na F+0.063%CaCO_3)和高钙染氟组(1...[目的]研究饲料钙对母鼠饮水型氟染毒后子代大鼠肾细胞线粒体损伤的影响。[方法]选用健康初断乳SD雌性大鼠100只,随机分为对照组、染氟组(100 mg/L Na F)、低钙组(0.063%CaCO_3)、低钙染氟组(100 mg/L Na F+0.063%CaCO_3)和高钙染氟组(100 mg/L Na F+7%CaCO_3);饲养3个月后,雌雄鼠合笼交配。取日龄14 d及28 d仔鼠雌雄各10只,以其肾脏细胞线粒体标志酶琥珀酸脱氢酶(SDHase)活性及脂质过氧化指标丙二醛(MDA)水平,肾脏细胞凋亡状况,线粒体分裂/融合蛋白Fis1、Drp1和Mfn2表达水平为观察指标。[结果]与染氟组相比,高钙染氟组SDHase活性升高(P<0.05),低钙染氟组SDHase活性降低(P<0.05)。与对照组相比,雌鼠各组肾脏线粒体MDA含量均升高(P<0.05)。与对照组相比,染氟各组仔鼠凋亡细胞增多;与染氟组相比,低钙染氟组凋亡细胞增多,而高钙染氟组凋亡细胞减少。与对照组相比,低钙染氟组14 d雄鼠的分裂蛋白Fis1表达升高(P<0.05);低钙染氟组和高钙染氟组28 d雄鼠的分裂蛋白Drp1升高(P<0.05)。[结论]氟中毒能够造成大鼠肾脏细胞线粒体内分裂/融合蛋白Fis1、Drp1和Mfn2表达异常,引起肾脏细胞线粒体损伤。高钙饲料摄入能降低线粒体内脂质过氧化反应,减轻高氟对子代肾脏细胞的毒性作用,而低钙饲料摄入会加剧高氟的毒性作用。展开更多
基金supported in part by the National Natural Science Foundation of China(62173346,61988101,92267205,62103360,62303494)。
文摘Partial least squares(PLS)model is the most typical data-driven method for quality-related industrial tasks like soft sensor.However,only linear relations are captured between the input and output data in the PLS.It is difficult to obtain the remaining nonlinear information in the residual subspaces,which may deteriorate the prediction performance in complex industrial processes.To fully utilize data information in PLS residual subspaces,a deep residual PLS(DRPLS)framework is proposed for quality prediction in this paper.Inspired by deep learning,DRPLS is designed by stacking a number of PLSs successively,in which the input residuals of the previous PLS are used as the layer connection.To enhance representation,nonlinear function is applied to the input residuals before using them for stacking highlevel PLS.For each PLS,the output parts are just the output residuals from its previous PLS.Finally,the output prediction is obtained by adding the results of each PLS.The effectiveness of the proposed DRPLS is validated on an industrial hydrocracking process.
基金supported in part by the National Natural Science Foundation of China(Nos.82272184 and 82130011)Shanghai Xuhui District Scientific Research Project(Nos.202104 and 202105).
文摘Heart failure with preserved ejection fraction(HFpEF)displays normal or near-normal left ventricular ejection fraction,diastolic dysfunction,cardiac hypertrophy,and poor exercise capacity.Berberine,an isoquinoline alkaloid,possesses cardiovascular benefits.Adult male mice were assigned to chow or high-fat diet with L-NAME(“two-hit”model)for 15 weeks.Diastolic function was assessed using echocardiography and noninvasive Doppler technique.Myocardial morphology,mitochondrial ultrastructure,and cardiomyocyte mechanical properties were evaluated.Proteomics analysis,autophagic flux,and intracellular Ca^(2+)were also assessed in chow and HFpEF mice.The results show exercise intolerance and cardiac diastolic dysfunction in“two-hit”-induced HFpEF model,in which unfavorable geometric changes such as increased cell size,interstitial fibrosis,and mitochondrial swelling occurred in the myocardium.Diastolic dysfunction was indicated by the elevated E value,mitral E/A ratio,and E/e’ratio,decreased e’value and maximal velocity of re-lengthening(-dL/dt),and prolonged re-lengthening in HFpEF mice.The effects of these processes were alleviated by berberine.Moreover,berberine ameliorated autophagic flux,alleviated Drp1 mitochondrial localization,mitochondrial Ca^(2+)overload and fragmentation,and promoted intracellular Ca^(2+)reuptake into sarcoplasmic reticulum by regulating phospholamban and SERCA2a.Finally,berberine alleviated diastolic dysfunction in“two-hit”diet-induced HFpEF model possibly because of the promotion of autophagic flux,inhibition of mitochondrial fragmentation,and cytosolic Ca^(2+)overload.
文摘[目的]研究饲料钙对母鼠饮水型氟染毒后子代大鼠肾细胞线粒体损伤的影响。[方法]选用健康初断乳SD雌性大鼠100只,随机分为对照组、染氟组(100 mg/L Na F)、低钙组(0.063%CaCO_3)、低钙染氟组(100 mg/L Na F+0.063%CaCO_3)和高钙染氟组(100 mg/L Na F+7%CaCO_3);饲养3个月后,雌雄鼠合笼交配。取日龄14 d及28 d仔鼠雌雄各10只,以其肾脏细胞线粒体标志酶琥珀酸脱氢酶(SDHase)活性及脂质过氧化指标丙二醛(MDA)水平,肾脏细胞凋亡状况,线粒体分裂/融合蛋白Fis1、Drp1和Mfn2表达水平为观察指标。[结果]与染氟组相比,高钙染氟组SDHase活性升高(P<0.05),低钙染氟组SDHase活性降低(P<0.05)。与对照组相比,雌鼠各组肾脏线粒体MDA含量均升高(P<0.05)。与对照组相比,染氟各组仔鼠凋亡细胞增多;与染氟组相比,低钙染氟组凋亡细胞增多,而高钙染氟组凋亡细胞减少。与对照组相比,低钙染氟组14 d雄鼠的分裂蛋白Fis1表达升高(P<0.05);低钙染氟组和高钙染氟组28 d雄鼠的分裂蛋白Drp1升高(P<0.05)。[结论]氟中毒能够造成大鼠肾脏细胞线粒体内分裂/融合蛋白Fis1、Drp1和Mfn2表达异常,引起肾脏细胞线粒体损伤。高钙饲料摄入能降低线粒体内脂质过氧化反应,减轻高氟对子代肾脏细胞的毒性作用,而低钙饲料摄入会加剧高氟的毒性作用。
