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幼儿营养粉的制备加工

食品科技 2004年第6期29卷 48-52页

作者：田三德王东郑蕾韦永刚王辉陕西科技大学生命科学与工程学院咸阳712081

根据最新国家标准GB10769-1997,应用线性规划法对以谷类、乳粉为主要原料的婴幼儿断奶期辅助食品进行配方设计与加工技术的探索,制备出了婴幼儿营养初级食品,尽可能使其营养成分符合国标要求,必需氨基酸配比合理,并添加了重要的生物活... 详细信息

根据最新国家标准GB10769-1997,应用线性规划法对以谷类、乳粉为主要原料的婴幼儿断奶期辅助食品进行配方设计与加工技术的探索,制备出了婴幼儿营养初级食品,尽可能使其营养成分符合国标要求,必需氨基酸配比合理,并添加了重要的生物活性物质。

关键词：线性规划婴幼儿断奶期辅助食品营养强化

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星载图像压缩中的无损预测研究

计算机工程与设计 2012年第6期33卷 2328-2333页

作者：魏永旺罗海波张承宁邵楚雯中国科学院沈阳自动化研究所辽宁沈阳110016 中国科学院光电信息处理重点实验室辽宁沈阳110016 辽宁省图像理解与视觉计算重点实验室辽宁沈阳110016 北华大学电气信息工程学院吉林吉林132021 东南大学电气工程学院江苏南京210096

针对星载遥感图像自相关系数较大时MED预测比较理想,反之均值Mean预测更有优势的问题,融合该两种方法的优点提出了改进的MED预测,使之对多种类别的图像特别是遥感图像能够取得较好的预测效果。此外,从预测相关性、运算复杂度、是否带有... 详细信息

针对星载遥感图像自相关系数较大时MED预测比较理想,反之均值Mean预测更有优势的问题,融合该两种方法的优点提出了改进的MED预测,使之对多种类别的图像特别是遥感图像能够取得较好的预测效果。此外,从预测相关性、运算复杂度、是否带有自动误码纠偏以及采用Rice算法获得的压缩比等角度进行了两种预测残差映射器的研究,确定了选用带自动误码纠偏的差值映射和可调整的预测方式。当信源干扰多大时选取前像素预测,反之采用MED或改进的MED预测,从而兼顾了压缩比和抗误码两方面,且硬件可实现。

关键词：星载遥感图像无损压缩预测残差映射 Rice算法

De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期 174-180页

作者： Fan-Xiao Meng Xing-Yu wang Ka Lu Ju-Song Yang Fu-Min Zhang Ai-Jun Ma Bao Du yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

关键词：

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Gauss-Bonnet theorems in the affine group and the group of rigid motions of the Minkowski plane

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Science China Mathematics 2021年第8期64卷 1843-1860页

作者： yong wang Sining wei School of Mathematics and Statistics Northeast Normal UniversityChangchun 130024China

In this paper,we compute sub-Riemannian limits of Gaussian curvature for a Euclidean C^(2)-smooth surface in the affine group and the group of rigid motions of the Minkowski plane away from characteristic points and signed geodesic curvature for Euclidean C^(2)-smooth curves on *** get Gauss-Bonnet theorems in the affine group and the group of rigid motions of the Minkowski plane.

关键词： affine group group of rigid motions of the Minkowski plane Gauss-Bonnet theorem sub-Riemannian limit

Differential distribution of PINK1 and Parkin in the primate brain implies distinct roles

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Neural Regeneration Research 2025年第4期20卷 1124-1134页

作者： Yanting Liu wei Huang Jiayi Wen Xin Xiong Ting Xu Qi wang Xiusheng Chen Xianxian Zhao Shihua Li Xiaojiang Li weili Yang Guangdong Key Laboratory of Non-human Primate Research Key Laboratory of CNS Regeneration(Ministry of Education)Guangdong-Hongkong-Macao CNS Regeneration Institute of Jinan UniversityJinan UniversityGuangzhouGuangdong ProvinceChina

The vast majority of in vitro studies have demonstrated that PINK1 phosphorylates Parkin to work together in mitophagy to protect against neuronal ***,it remains largely unclear how PINK1 and Parkin are expressed in mammalian *** has been difficult to address because of the intrinsically low levels of PINK1 and undetectable levels of phosphorylated Parkin in small *** this issue is critical for elucidating the in vivo roles of PINK1 and ***,we showed that the PINK1 kinase is selectively expressed as a truncated form(PINK1–55)in the primate *** the present study,we used multiple antibodies,including our recently developed monoclonal anti-PINK1,to validate the selective expression of PINK1 in the primate *** found that PINK1 was stably expressed in the monkey brain at postnatal and adulthood stages,which is consistent with the findings that depleting PINK1 can cause neuronal loss in developing and adult monkey ***1 was enriched in the membrane-bound fractionations,whereas Parkin was soluble with a distinguishable *** double staining experiments showed that PINK1 and Parkin did not colocalize under physiological conditions in cultured monkey astrocytes,though they did colocalize on mitochondria when the cells were exposed to mitochondrial *** findings suggest that PINK1 and Parkin may have distinct roles beyond their well-known function in mitophagy during mitochondrial damage.

关键词： neurodegeneration Parkin Parkinson’s disease PINK1 subcellular distribution

Endoplasmic reticulum stress and autophagy in cerebral ischemia/reperfusion injury:PERK as a potential target for intervention

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Neural Regeneration Research 2025年第5期20卷 1455-1466页

作者： Ju Zheng Yixin Li Ting Zhang Yanlin Fu Peiyan Long Xiao Gao Zhengwei wang Zhizhong Guan Xiaolan Qi wei Hong Yan Xiao Key Laboratory of Endemic and Ethnic Diseases Ministry of Education&Key Laboratory of Medical Molecular Biology of Guizhou ProvinceGuizhou Medical UniversityGuiyangGuizhou ProvinceChina Guizhou Center for Disease Control and Prevention GuiyangGuizhou ProvinceChina Department of Histology and Embryology Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry GuiyangGuizhou ProvinceChina

Several studies have shown that activation of unfolded protein response and endoplasmic reticulum(ER)stress plays a crucial role in severe cerebral ischemia/reperfusion *** occurs within hours after cerebral ischemia,but the relationship between ER stress and autophagy remains *** this study,we established experimental models using oxygen-glucose deprivation/reoxygenation in PC12 cells and primary neurons to simulate cerebral ischemia/reperfusion *** found that prolongation of oxygen-glucose deprivation activated the ER stress pathway protein kinase-like endoplasmic reticulum kinase(PERK)/eukaryotic translation initiation factor 2 subunit alpha(e IF2α)-activating transcription factor 4(ATF4)-C/EBP homologous protein(CHOP),increased neuronal apoptosis,and induced ***,inhibition of ER stress using inhibitors or by si RNA knockdown of the PERK gene significantly attenuated excessive autophagy and neuronal apoptosis,indicating an interaction between autophagy and ER stress and suggesting PERK as an essential target for regulating *** autophagy with chloroquine exacerbated ER stress-induced apoptosis,indicating that normal levels of autophagy play a protective role in neuronal injury following cerebral ischemia/reperfusion *** from this study indicate that cerebral ischemia/reperfusion injury can trigger neuronal ER stress and promote autophagy,and suggest that PERK is a possible target for inhibiting excessive autophagy in cerebral ischemia/reperfusion injury.

关键词： apoptosis ATF4 autophagy C/EBP homologous protein cerebral ischemia/reperfusion injury eIF2α endoplasmic reticulum stress PERK

不同频率振动刺激力量训练对膝关节肌群肌力影响的实验研究

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首都体育学院学报 2008年第3期20卷 72-75页

作者：任满迎潘磊魏永旺北京市体育科学研究所北京100075 河北传媒学院石家庄河北050071

采用PHYSIO-PLATE振动训练台,对北京女子垒球队二线运动员进行不同频率的振动刺激力量训练,振动频率分别是30HZ和45HZ,振幅为7mm。经过八周系统的力量训练,利用MERAC等速肌力测试系统分别对两组受试者膝关节屈伸肌的等速力量进行测试,... 详细信息

采用PHYSIO-PLATE振动训练台,对北京女子垒球队二线运动员进行不同频率的振动刺激力量训练,振动频率分别是30HZ和45HZ,振幅为7mm。经过八周系统的力量训练,利用MERAC等速肌力测试系统分别对两组受试者膝关节屈伸肌的等速力量进行测试,实验结果表明:实验后,Ⅰ组和Ⅱ组受试者膝关节左右侧伸肌群相对峰值力矩、总功都产生了显著性提高(P<0.05),快速单次最大做功功率产生了非常显著性提高;组间比较,Ⅱ组受试者膝关节左右侧伸肌相对峰值力矩、快速单次最大做功功率的增长率均高于Ⅰ组,差异具有显著性(P<0.05)。研究证明:抗负荷力量训练附加振动刺激可以有效地提高力量训练的效果,能够以相对较小的负荷有效地提高肌肉的最大力量、快速力量以及肌肉耐力;同振幅下,次高频振动刺激对肌肉的训练效果显著高于中低频振动刺激。

关键词：振动刺激力量训练相对峰值力矩单次最大功率总功

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壳聚糖/聚乙交酯三维编织物的力学性能

天津大学学报 2006年第B6期39卷 337-340页

作者：袁晓燕张庆伟望咏林姚康德天津大学材料科学与工程学院天津300072

选择合适的生物材料和适宜的制备方法是实现组织修复、重建的重要环节．采用三维四步圆型编织方法,由壳聚糖和聚乙交酯(PGA)纤维制备绳索状三维编织物,研究其拉伸力学特性．研究结果表明：壳聚糖三维编织物的拉伸曲线与天然肌腱相似；... 详细信息

选择合适的生物材料和适宜的制备方法是实现组织修复、重建的重要环节．采用三维四步圆型编织方法,由壳聚糖和聚乙交酯(PGA)纤维制备绳索状三维编织物,研究其拉伸力学特性．研究结果表明：壳聚糖三维编织物的拉伸曲线与天然肌腱相似；直径为3．5mm的壳聚糖三维编织物在湿态下的最大拉伸载荷为50～85N,远低于其干态下值(140～225N),添加轴向纱对其无显著影响；在编织纱中掺入PGA纤维,可显著提高三维编织物的最大拉伸裁荷；PGA含量较高的壳聚糖/PGA三维编织物预期可以用作人工肌腱材料．

关键词：三维编织壳聚糖聚乙交酯力学性能人工肌腱

An orthogonal basis for non-uniform algebraic-trigonometric spline space

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Applied Mathematics(A Journal of Chinese Universities) 2014年第3期29卷 273-282页

作者： wei yong-wei wang Guo-zhao Department of Mathematics Shanghai Maritime University Department of Mathematics Zhejiang University

Non-uniform algebraic-trigonometric B-splines shares most of the properties as those of the usual polynomial B-splines. But they are not orthogonai. We construct an orthogonal basis for the n-order（n ≥ 3） algebraic-trigonometric spline space in order to resolve the theo- retical problem that there is not an explicit orthogonai basis in the space by now. Motivated by the Legendre polynomials, we present a novel approach to define a set of auxiliary functions, which have simple and explicit expressions. Then the proposed orthogonal splines are given as the derivatives of these auxiliary functions.

关键词： CAGD algebraic-trigonometric spline space NUAT B-spline orthogonal spline