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不同护色剂对油梨果肉护色效果研究

食品科技 2015年第12期40卷 300-305页

作者：覃慧杨志伟广西大学轻工与食品工程学院南宁530004 广西高校特色农产品精深加工与安全控制重点实验室南宁530004

以哈斯牛油果为原料,研究了不同护色剂对牛油果果肉护色效果的影响。单一护色剂处理情况下,10 g/L半胱氨酸、20 g/L氯化钠、12 g/L抗坏血酸对牛油果果肉护色效果最佳。在单因素试验的基础上,通过响应面试验确定最佳复合护色剂配方。半... 详细信息

以哈斯牛油果为原料,研究了不同护色剂对牛油果果肉护色效果的影响。单一护色剂处理情况下,10 g/L半胱氨酸、20 g/L氯化钠、12 g/L抗坏血酸对牛油果果肉护色效果最佳。在单因素试验的基础上,通过响应面试验确定最佳复合护色剂配方。半胱氨酸质量浓度为9.2 g/L、氯化钠质量浓度为25 g/L、抗坏血酸质量浓度为12.1 g/L的复合护色剂的共同处理下,油梨果肉护色效果最佳,色差值可至(2.942±0.133),总吸光值可达(24.585±0.427)。

关键词：油梨多酚色差护色

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无机复合混凝剂处理造纸综合废水

中国造纸 2005年第5期24卷 26-29页

作者：隋智慧齐齐哈尔大学轻纺学院黑龙江齐齐哈尔161006

用煤矸石及硫铁矿烧渣作原料制备了一种高效复合混凝剂聚硅酸铝铁(PSAF),并将其用于造纸综合废水的处理。结果表明,在较宽的pH值范围内,PSAF混凝剂对废水有很好的处理效果。在常温、pH值7.0、PSAF用量50mg/L的条件下,SS、CODCr和色度的... 详细信息

用煤矸石及硫铁矿烧渣作原料制备了一种高效复合混凝剂聚硅酸铝铁(PSAF),并将其用于造纸综合废水的处理。结果表明,在较宽的pH值范围内,PSAF混凝剂对废水有很好的处理效果。在常温、pH值7.0、PSAF用量50mg/L的条件下,SS、CODCr和色度的去除率分别为96.5%、88.6%、92.3%;温度对CODCr去除率的影响不大;与传统混凝剂Al2(SO4)3和FeCl3相比,PSAF混凝剂具有混凝沉降速度快、处理废水后水中残余量低、处理废水费用低等特点。文中还探讨了混凝剂对造纸废水的混凝沉降机理。

关键词：煤矸石硫铁矿烧渣混凝剂造纸废水混凝机理

T-S Fuzzy Coordinated Control for Power Unit Based on Multi-objective Optimization 25th

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T-S Fuzzy Coordinated Control for Power Unit Based on Multi-...

多指标综合评分法结合Box-Behnken响应面法优化炒紫地榆炮制工艺

第25届中国控制与决策会议

作者： HAO wan-jun Qiao yan-hui Li ze Wu yong-zhi Gao han-wen Yang jun College of Mechanical and Electrical Engineering Suzhou University of sience and tecnology College of Information Science and Engineering Northeastern University

ISBN: (纸本)9781467355339

Based on multi-objective optimization control, fuzzy state feedback control and Set Point tracking control strategy, A novel scheme for the coordinated control of power units is presented. Firstly, a fuzzy state space model of boiler-turbine system is built. Then, based on the model and pole placement design, a state feedback controller with asymptotic tracking performance is proposed. Because the system has nonlinear, strong coupling, variable condition, parameter time-varying characteristics, which led to the optimum parameters of pole placement are difficult to determine. In order to guarantee dynamic performance, stability and control variable constraints of the system, a multi-objective optimization method for pole placement based on particle swarm optimization is exploited. This control system has good tracking property with zero steady-state error and can reject input disturbances, the controller works well even if some parameters change. Simulation results show that the system designed by the proposed method gives satisfactory regulation quality within wide operating range.

关键词： Boiler-turbine system Coordinated control Multi-objective Optimization particle swarm optimization Pole assignment T-S Fuzzy Control

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解放军药学学报 2024年第4期37卷 358-361,365页

作者：甘沁婷丁慧云吴秀萍王海霞徐丽华浙江中医药大学附属杭州市中医院浙江杭州1310000 衢州市人民医院浙江衢州2324000

目的基于Box-Behnken响应面法,从多指标综合评价的角度优化炒紫地榆的炮制工艺。方法采用高效液相色谱法定量分析,以没食子酸、鞣花酸、儿茶素和异鼠李素含量的综合评分值为考察指标,以炒制时间、炒制温度和翻炒频率为单因素,用Box-Behn... 详细信息

目的基于Box-Behnken响应面法,从多指标综合评价的角度优化炒紫地榆的炮制工艺。方法采用高效液相色谱法定量分析,以没食子酸、鞣花酸、儿茶素和异鼠李素含量的综合评分值为考察指标,以炒制时间、炒制温度和翻炒频率为单因素,用Box-Behnken响应面法优化炒紫地榆炮制工艺并进行验证。结果炒紫地榆的影响因素顺序为炒制温度>炒制时间>翻炒频率;优化后的炒紫地榆炮制工艺为炒制时间20 min,炒制温度105℃,翻炒频率每分钟30次。验证结果与预测值之间的RSD为1.71%。结论该试验的方法学考察结果准确稳定、操作简单,建立的模型具有良好的预测性,可用于炒紫地榆炮制的优选,可为炒紫地榆后续研究提供理论参考。

关键词：炒紫地榆炮制工艺 Box-Behnken响应面法

Experimental study on the inhibition effect of miR-106a inhibitor on tumor growth of ovarian cancer xenografts mice

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Asian Pacific Journal of Tropical Medicine 2016年第7期9卷 663-666页

作者： zhi-hui Cai Li-Min Chen Yi-Juan Liang Jun-Rong Shi You-Ju Ma Wei-Ming Wang Huan Yang Gynecology Department Affiliated Hospital of Hebei University Gynecology and Obstetrics Department Jingxiu district hospital of Baoding city

Objective:To study the inhibition effect of miR-106 a inhibitor on tumor growth of ovarian cancer xenografts ***:BALB/c mice were selected as experimental animals,ovarian cancer SKOV-3 cells transfected with miR-106 a inhibitor and its negative control were inoculated subcutaneously,intratumoral injection of miR-106 a inhibitor and its negative control were continued after tumor formation,and they were enrolled as treatment group and model group,*** volume and weight as well as Ki-67 and programmed cell death 4(PDCD4) expression were determined;miR-106 a inhibitor and its negative control as well as miR-106 a mimic and its negative control were transfected into SKOV-3 cells,and expression of PDCD4 in cells was ***:Tumor tissue volume and weight as well as mR NA expression and protein expression of Ki-67 in treatment group were significantly lower than those in the model group while m RNA expression and protein expression of PDCD4 were significantly higher than those in the model group;transfection of mi R-106 a mimic could decrease m RNA expression and protein expression of PDCD4 in SKOV-3 cells,and transfection of miR-106 a inhibitor could increase mR NA expression and protein expression of PDCD4 in SKOV-3 ***:Transfection of mi R-106 a inhibitor can inhibit the growth of tumor in ovarian cancer xenografts mice through increasing the expression of PDCD4.

关键词： Ovarian cancer Xenografts miR-106a Programmed cell death 4

CK-45W-40发动机油在DPF轻卡上的应用研究

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润滑油 2024年第4期39卷 4-10页

作者：刘恒瑞刘文辉李文华王伟王天儒张志欣中国石油上海润滑油产品设计分公司辽宁大连116032 东北财经大学辽宁大连116025 中国石油上海润滑油产品设计分公司甘肃兰州730060 中国石油上海润滑油产品设计分公司上海201800 中国石油大连润滑油分公司辽宁大连116032

随着物流运输行业中轻卡的国家排放法规升级,应用颗粒捕集器(DPF)、废气再循环(EGR)等技术的轻卡车辆数量逐渐攀升。发动机后处理系统新技术的应用,对发动机润滑油的各项性能提出了更高的要求。文章介绍了API CK-4规格的台架性能要求及... 详细信息

随着物流运输行业中轻卡的国家排放法规升级,应用颗粒捕集器(DPF)、废气再循环(EGR)等技术的轻卡车辆数量逐渐攀升。发动机后处理系统新技术的应用,对发动机润滑油的各项性能提出了更高的要求。文章介绍了API CK-4规格的台架性能要求及与CI-4规格的性能指标差异,并对研制的CK-4 5W-40柴油发动机油在轻卡上的应用性能进行了研究。结果表明:CK-4 5W-40在加装颗粒捕集器的轻卡车辆上行驶里程可达3万km,能为物流运输行业有效降低车辆运营中的保养成本。

关键词： CK-45W-40 发动机油柴油机油 DPF 轻卡

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马铃薯GRF基因家族的鉴定和表达模式分析

基因组学与应用生物学 2024年第4期43卷 569-578页

作者：石蒙蒙王德颖谢浩杰秦志广刘紫婕韩宝佳呼雨君郭文慧孙永旺聊城大学农学与农业工程学院聊城252100

生长调节因子(growth-regulating factor,GRF)家族基因编码植物特有的转录因子,在植物生长发育和胁迫响应等许多生物学过程中发挥重要调节作用。本研究利用生物信息学方法全面鉴定了马铃薯(Solanum tuberosum)GRF基因家族,并分析了其表... 详细信息

生长调节因子(growth-regulating factor,GRF)家族基因编码植物特有的转录因子,在植物生长发育和胁迫响应等许多生物学过程中发挥重要调节作用。本研究利用生物信息学方法全面鉴定了马铃薯(Solanum tuberosum)GRF基因家族,并分析了其表达模式。在马铃薯基因组中共发现了12个GRF家族基因(StGRF1~StGRF12),其编码的蛋白均含有QLQ结构域和WRC结构域;StGRF基因分布在马铃薯的9条染色体上,染色体片段复制可能导致了该家族基因在马铃薯基因组中的扩张;系统进化分析显示,StGRF可以分为5组,同组的基因成员具有相似的基因结构,且其编码的蛋白具有相似的保守结构域分布;StGRF成员启动子区域存在丰富的激素和胁迫响应相关元件;表达模式分析显示,StGRF在马铃薯不同发育时期及各个组织中呈现出多样化的表达特征,这说明不同成员可能在马铃薯生长发育过程中发挥特异的调控作用。以上结果可为进一步探索StGRF的功能提供一定基础。

关键词：马铃薯生长调节因子基因家族生物信息学表达模式

Adipose tissue-derived stem cells ameliorates dermal fibrosis in mouse models of scleroderma

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 52-56页

作者： Wei Chen zhi-Kuan Xia Man-hui Zhang Gui-Chun Ding Xiao-Yan Zhang Zheng-Xu Wang Rong-Ya Yang Department of Dermatology Chinese People's Liberation Army General HospitalBeijingChina Department of Dermatology Zhu Ri He Base Hospital of Beijing Military CommandInner MongoliaChina Department of Dermatology Department of UltrasoundGeneral Hospital of Beijing Military CommandBeijingChina

Objective: To investigate the therapeutic potential of adipose-derived stern cells (ADSCs) for limited cutaneous scleroderma (LS) in mouse models. Methods: ADSCs were isolated from pathogen-free female C57BL/6 mice and LS was induced in wild type (WT) C57BL/6 mice via daily injection of bleomycin (0.1 mL x 300 mu g/mL) for 4 weeks; then the ADSCs were subcutaneously injected into the dorsal area in the model treatment group, and 100 mu L of phosphate buffered saline (PBS) solution was injected into the same site in the model control group. Green fluorescent protein (GFP) was used to track the cells using an in vivo imaging system on days 7, 14, 21 and 28 after transplantation. All mice were sacrificed and histologic analyses were performed after 4 weeks, and the skin thickness, collagen deposition and the total content of hydroxyproline were evaluated. Additionally, immunohistochemistry were performed to compare the tissue expression and distribution of TGF-beta 1 and VEGF between the ADSCs treatment group and the treatment control group. Results: WT C57BL/6 LS mouse model were successfully established and GFP in vivo fluorescence imaging showed that the translated ADSCs survived at the local for at least 4 weeks. Compared with the control group, the ADSCs treatment group significantly attenuated bleomycin-induced dermal fibrosis, reduced the skin thickness and the total content of hydroxyproline (P<0.05). The ADSCs treatment group displayed significantly lower levels of TGF-beta 1 and higher levels of VEGF than the control group (P<0.05). Conclusions: ADSCs may provide a feasible and practical treatment for autoimmune diseases such as LS and ameliorate dermal fibrosis.

关键词： Adipose-derived stem cells Limited cutaneous scleroderma Mouse model VEGF TGF-β1

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一类基于鲁棒统计的噪声抑制变分模型与算法

系统仿真学报 2007年第21期19卷 4884-4888页

作者：肖亮韦志辉南京理工大学计算机科学与技术学院南京210094

从最大后验概率估计和马尔科夫随机场出发,将图像梯度场的分布建模为混合加权的容许密度类,利用鲁棒统计学中的Hubber定理,导出了一类鲁棒性密度。建立了一类由L2范数或L1范数数据保真约束和鲁棒意义下的图像正则化项组成的噪声抑制变... 详细信息

从最大后验概率估计和马尔科夫随机场出发,将图像梯度场的分布建模为混合加权的容许密度类,利用鲁棒统计学中的Hubber定理,导出了一类鲁棒性密度。建立了一类由L2范数或L1范数数据保真约束和鲁棒意义下的图像正则化项组成的噪声抑制变分模型。提出了该类模型的基于梯度最速下降的有限差分算法。在Matlab集成环境下进行了六组不同噪声抑制变分模型的仿真实验,通过计算峰值信噪比和结构化相似指标给出了性能评价结果。

关键词：变分方法偏微分方程图像去噪鲁棒统计建模与仿真