从配方和功效角度出发,采用正交试验探索3款潜在兼具功效和影响折断力的原料最佳比例,并进行人体功效验证。结果表明,当巴西棕榈蜡、乳木果油和肉豆蔻醇异丙酯比例为3︰7︰3时,折断力最优。受试者使用唇膏配方14天后,唇部角质层水分含...从配方和功效角度出发,采用正交试验探索3款潜在兼具功效和影响折断力的原料最佳比例,并进行人体功效验证。结果表明,当巴西棕榈蜡、乳木果油和肉豆蔻醇异丙酯比例为3︰7︰3时,折断力最优。受试者使用唇膏配方14天后,唇部角质层水分含量显著提升23.51%(P<0.05),经皮失水率(Transepidermal water loss,TEWL)显著降低20.61%,光泽度显著提升9.88%,皮肤鳞屑指数显著减少55.76%。展开更多
The advancement of imaging resolution has made the impact of multi-frequency composite jitter in satellite platforms on non-collinear time delay and integration(TDI)charge-coupled device(CCD)imaging systems increasing...The advancement of imaging resolution has made the impact of multi-frequency composite jitter in satellite platforms on non-collinear time delay and integration(TDI)charge-coupled device(CCD)imaging systems increasingly critical.Moreover,the accuracy of jitter detection is constrained by the limited inter-chip overlap region inherent to non-collinear TDI CCDs.To address these challenges,a multi-frequency jitter detection method is proposed,achieving sub-pixel level error extraction.Furthermore,a multi-frequency jitter fitting approach utilizing a scale-adjustable sliding window is introduced.For composite multi-frequency jitter,spectral analysis decomposes the relative jitter error curve,while the scale-adjustable sliding window enables frequency-division fitting and modeling.Validation experiments using Gaofen-8(GF-8)remote sensing satellite imagery detected jitter at 0.65,20,and 100 Hz in the cross-track direction and at 0.5,100,and 120 Hz in the along-track direction,demonstrating the method’s precision in detecting platform jitter at sub-pixel accuracy(<0.2 pixels)and its efficacy in fitting and modeling for non-collinear TDI CCD imaging systems subject to multi-frequency jitter.展开更多
Starting from the perspective of formula and efficacy,orthogonal experiments were first performed to explore the optimal ratio of three raw materials that potentially affect breaking force of lipsticks,verification ex...Starting from the perspective of formula and efficacy,orthogonal experiments were first performed to explore the optimal ratio of three raw materials that potentially affect breaking force of lipsticks,verification experiment on humans was then conducted to test the efficacy of the lipstick formula.Results showed that when the ratio of carnauba wax,shea butter and myristyl isopropyl ester was 3∶7∶3,the breaking force was optimal.After the subjects used the lipstick formula for 14 days,the moisture content of the lip stratum corneum significantly increased by 23.51% (P﹤0.05),the transepidermal water loss (TEWL) rate significantly decreased by 20.61%,the skin glossiness increased significantly by 9.88%,and the skin scale index decreased significantly by 55.76%.展开更多
利用固定化细胞发酵技术,选取黑曲霉、枯草芽孢杆菌和酿酒酵母对茶籽壳进行发酵,制备发酵物。分析显示:与未经发酵的水提取物相比,茶籽壳酿酒酵母发酵物(FETSS-3)主要抗氧化活性物质含量明显增加,其多糖、多酚和皂苷含量分别增加至原来...利用固定化细胞发酵技术,选取黑曲霉、枯草芽孢杆菌和酿酒酵母对茶籽壳进行发酵,制备发酵物。分析显示:与未经发酵的水提取物相比,茶籽壳酿酒酵母发酵物(FETSS-3)主要抗氧化活性物质含量明显增加,其多糖、多酚和皂苷含量分别增加至原来的 9.19 、9.59 和 4.67 倍。从生化水平、细胞水平和酶活性水平对其抗氧化活性进行了探究,并对其皮肤安全性进行试验确认。研究结果表明:在 0.1~ 0.4 g/L和0.5~2.0 g/L,FETSS-3的ABTS和· OH自由基清除活性显著优于V C ( P <0.01;P <0.01);在0.2~1.2 g/L,其对脂质过氧化半抑制率IC 50 仅为V E 的21.98%,抑制活性显著高于V E ( P <0.01)。FETSS-3在20~120 mg/L能显著降低H 2 O 2 诱导的人皮肤成纤维细胞(HSF)内的氧化损伤应激水平( P <0.01)。体外酶活性实验表明:FETSS-3(120 mg/L)能显著提高HSF细胞氧化应激损伤后的过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和人谷胱甘肽-过氧化物酶(GSH-PX)活性( P <0.05;P <0.01;P <0.01)。人体斑贴实验表明:FETSS-3无皮肤过敏风险。展开更多
文摘从配方和功效角度出发,采用正交试验探索3款潜在兼具功效和影响折断力的原料最佳比例,并进行人体功效验证。结果表明,当巴西棕榈蜡、乳木果油和肉豆蔻醇异丙酯比例为3︰7︰3时,折断力最优。受试者使用唇膏配方14天后,唇部角质层水分含量显著提升23.51%(P<0.05),经皮失水率(Transepidermal water loss,TEWL)显著降低20.61%,光泽度显著提升9.88%,皮肤鳞屑指数显著减少55.76%。
文摘The advancement of imaging resolution has made the impact of multi-frequency composite jitter in satellite platforms on non-collinear time delay and integration(TDI)charge-coupled device(CCD)imaging systems increasingly critical.Moreover,the accuracy of jitter detection is constrained by the limited inter-chip overlap region inherent to non-collinear TDI CCDs.To address these challenges,a multi-frequency jitter detection method is proposed,achieving sub-pixel level error extraction.Furthermore,a multi-frequency jitter fitting approach utilizing a scale-adjustable sliding window is introduced.For composite multi-frequency jitter,spectral analysis decomposes the relative jitter error curve,while the scale-adjustable sliding window enables frequency-division fitting and modeling.Validation experiments using Gaofen-8(GF-8)remote sensing satellite imagery detected jitter at 0.65,20,and 100 Hz in the cross-track direction and at 0.5,100,and 120 Hz in the along-track direction,demonstrating the method’s precision in detecting platform jitter at sub-pixel accuracy(<0.2 pixels)and its efficacy in fitting and modeling for non-collinear TDI CCD imaging systems subject to multi-frequency jitter.
文摘Starting from the perspective of formula and efficacy,orthogonal experiments were first performed to explore the optimal ratio of three raw materials that potentially affect breaking force of lipsticks,verification experiment on humans was then conducted to test the efficacy of the lipstick formula.Results showed that when the ratio of carnauba wax,shea butter and myristyl isopropyl ester was 3∶7∶3,the breaking force was optimal.After the subjects used the lipstick formula for 14 days,the moisture content of the lip stratum corneum significantly increased by 23.51% (P﹤0.05),the transepidermal water loss (TEWL) rate significantly decreased by 20.61%,the skin glossiness increased significantly by 9.88%,and the skin scale index decreased significantly by 55.76%.
文摘利用固定化细胞发酵技术,选取黑曲霉、枯草芽孢杆菌和酿酒酵母对茶籽壳进行发酵,制备发酵物。分析显示:与未经发酵的水提取物相比,茶籽壳酿酒酵母发酵物(FETSS-3)主要抗氧化活性物质含量明显增加,其多糖、多酚和皂苷含量分别增加至原来的 9.19 、9.59 和 4.67 倍。从生化水平、细胞水平和酶活性水平对其抗氧化活性进行了探究,并对其皮肤安全性进行试验确认。研究结果表明:在 0.1~ 0.4 g/L和0.5~2.0 g/L,FETSS-3的ABTS和· OH自由基清除活性显著优于V C ( P <0.01;P <0.01);在0.2~1.2 g/L,其对脂质过氧化半抑制率IC 50 仅为V E 的21.98%,抑制活性显著高于V E ( P <0.01)。FETSS-3在20~120 mg/L能显著降低H 2 O 2 诱导的人皮肤成纤维细胞(HSF)内的氧化损伤应激水平( P <0.01)。体外酶活性实验表明:FETSS-3(120 mg/L)能显著提高HSF细胞氧化应激损伤后的过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和人谷胱甘肽-过氧化物酶(GSH-PX)活性( P <0.05;P <0.01;P <0.01)。人体斑贴实验表明:FETSS-3无皮肤过敏风险。
