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Glucagon-like-peptide-1 receptor agonists and the management of type 2 diabetes-backwards and forwards
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作者 Michael Horowitz lu cai Md Shahidul Islam 《World Journal of Diabetes》 SCIE 2024年第3期326-330,共5页
This editorial is stimulated by the article by Alqifari et al published in the World Journal of Diabetes(2024).Alqifari et al focus on practical advice for the clinical use of glucagon-like-peptide-1(GLP-1)receptor ag... This editorial is stimulated by the article by Alqifari et al published in the World Journal of Diabetes(2024).Alqifari et al focus on practical advice for the clinical use of glucagon-like-peptide-1(GLP-1)receptor agonists(GLP-1RAs)in the management of type 2 diabetes and this editorial provides complementary information.We initially give a brief historical perspective of the development of GLP-1RAs stimulated by recognition of the‘incretin effect’,the substantially greater insulin increase to enteral when compared to euglycaemic intravenous glucose,and the identification of the incretin hormones,GIP and GLP-1.In addition to stimulating insulin,GLP-1 reduces postprandial glucose levels by slowing gastric emptying.GLP-1RAs were developed because native GLP-1 has a very short plasma half-life.The majority of current GLP-1RAs are administered by subcutaneous injection once a week.They are potent in glucose lowering without leading to hypoglycaemia,stimulate weight loss in obese individuals and lead to cardiovascular and renal protection.The landscape in relation to GLP-1RAs is broadening rapidly,with different formulations and their combination with other peptides to facilitate both glucose lowering and weight loss.There is a need for more information relating to the effects of GLP-1RAs to induce gastrointestinal symptoms and slow gastric emptying which is likely to allow their use to become more effective and personalised. 展开更多
关键词 Glucagon-like-peptide-1 Glucose-dependent insulinotropic peptide Gastric emptying Type 2 diabetes
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Diabetic cardiomyopathy:Importance of direct evidence to support the roles of NOD-like receptor protein 3 inflammasome and pyroptosis
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作者 lu cai Yi Tan +2 位作者 Md Shahidul Islam Michael Horowitz Kupper A Wintergerst 《World Journal of Diabetes》 SCIE 2024年第8期1659-1662,共4页
Recently,the roles of pyroptosis,a form of cell death induced by activated NODlike receptor protein 3(NLRP3)inflammasome,in the pathogenesis of diabetic cardiomyopathy(DCM)have been extensively investigated.However,mo... Recently,the roles of pyroptosis,a form of cell death induced by activated NODlike receptor protein 3(NLRP3)inflammasome,in the pathogenesis of diabetic cardiomyopathy(DCM)have been extensively investigated.However,most studies have focused mainly on whether diabetes increases the NLRP3 inflammasome and associated pyroptosis in the heart of type 1 or type 2 diabetic rodent models,and whether various medications and natural products prevent the development of DCM,associated with decreased levels of cardiac NLRP3 inflammasome and pyroptosis.The direct link of NLRP3 inflammasome and associated pyroptosis to the pathogenesis of DCM remains unclear based on the limited evidence derived from the available studies,with the approaches of NLRP3 gene silencing or pharmaceutical application of NLRP3 specific inhibitors.We thus emphasize the requirement for more systematic studies that are designed to provide direct evidence to support the link,given that several studies have provided both direct and indirect evidence under specific conditions.This editorial emphasizes that the current investigation should be circumspect in its conclusion,i.e.,not overemphasizing its role in the pathogenesis of DCM with the fact of only significantly increased expression or activation of NLRP3 inflammasome and pyroptosis in the heart of diabetic rodent models.Only clear-cut evidence-based causative roles of NLRP3 inflammasome and pyroptosis in the pathogenesis of DCM can help to develop effective and safe medications for the clinical management of DCM,targeting these biomarkers. 展开更多
关键词 Diabetic cardiomyopathy Nucleotide oligomerization domain NOD-like receptor protein 3 inflammasome Cardiac cell death PYROPTOSIS
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Highly Efficient Adsorption of P-Xylene from Aqueous Solutions by Hierarchical Nanoporous Biochar Derived from Crab Shell 被引量:2
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作者 Yingna Chen Hailong Zhang +5 位作者 Jian Guo lu cai Yaning Wang Xinxin Yao Wendong Song Lili Ji 《Journal of Renewable Materials》 SCIE EI 2021年第10期1741-1755,共15页
The global consumption of p-xylene(PX)for the production of polymers has raised serious concerns about its impact on the environment.As various reports have shown the risks that PX could pose to human health,research ... The global consumption of p-xylene(PX)for the production of polymers has raised serious concerns about its impact on the environment.As various reports have shown the risks that PX could pose to human health,research into cost-effective remedial methods to remove PX from the environment has gained attraction.In this work,a hierarchical porous crab shell biochar(KCS)was synthesized,characterized,and evaluated for its efficiency to remove PX from aqueous solution.The characterizations of KCS,including the porous structure,surface functional group,phase structure,and surface morphology,were discussed by N_(2) adsorption-desorption,FTIR,XRD,and SEM.Batch adsorption experiments showed that the maximum adsorption capacity of PX on KCS was 393 mg/g within 5 min,larger than most biological/biomass materials,mainly due to the higher specific surface area of 2046 m^(2)/g,and abundant lipophilic functional groups.Subsequent adsorption kinetics study indicated a pseudo-second-order model which implied that the adsorption of PX was due to chemisorption.Thermodynamic parameters showed that the values ofΔH°andΔG°were both negative,indicating that the PX adsorption process on KCS was spontaneous and exothermic.The performance of KCS in delivering a cost-effective,fast,and efficient solution for the removal of PX from aqueous solution would greatly benefit current environmental remediation efforts. 展开更多
关键词 Crab shell porous biochar P-XYLENE ADSORPTION wastewater
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Recent therapeutic targets for the prevention and management of diabetic complications 被引量:1
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作者 Md Shahidul Islam lu cai Michael Horowitz 《World Journal of Diabetes》 SCIE 2023年第9期1330-1333,共4页
Diabetes and associated complications represent major global public health issues which are associated with impaired quality of life and premature death.Although some diabetic complications have decreased in the devel... Diabetes and associated complications represent major global public health issues which are associated with impaired quality of life and premature death.Although some diabetic complications have decreased in the developed world,the majority are still prevalent,with an increasing trend in the developing world.Currently used therapies are mainly‘glucocentric’,focusing on the optimization of glycemic control to prevent,delay or manage diabetes-associated complications-other common comorbidities,such as dyslipidemia and hypertension are often underestimated.Although a number of novel therapeutic approaches have been reported recently,some of them have not received comparable attention in relation to either further studies or potential clinical implementation.This editorial briefly discusses some recent therapeutic approaches to the prevention and management of diabetes and its associated complications,as well as potential directions for future research and development in this area. 展开更多
关键词 Diabetic complications Oxidative stress PHYTOCHEMICALS ZINC Silent information regulator 1 FOXO Micro RNA
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Surfactant-Modified Hydrophobic Biochar Derived from Laver (Porphyra haitanensis) with Superior Removal Performance for Kitchen Oil
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作者 Jiaxing Sun Lili Ji +6 位作者 Qianrui He Ran Li Xiaoyue Xia Yaning Wang Yi Yang lu cai Jian Guo 《Journal of Renewable Materials》 EI 2023年第8期3227-3243,共17页
In this study,a novel absorpent(MSAR600℃)with a hydrophobic surface and hierarchical porous structure for the removal of kitchen oil was facilely fabricated from the macroalgae,laver(Porphyra haitanensis)by incorpor-... In this study,a novel absorpent(MSAR600℃)with a hydrophobic surface and hierarchical porous structure for the removal of kitchen oil was facilely fabricated from the macroalgae,laver(Porphyra haitanensis)by incorpor-ating high-temperature carbonization and alkyl polyglucosides(APG)and rhamnolipid(RL)surfactants modifi-cation.The characterization results showed MSAR600℃ possessed a louts-leaf-like papillae microstructure with high contact angle(137.5°),abundant porous structure with high specific surface area(23.4 m^(2)/g),and various oxygen-containing functional groups(-OH,C=O,C-O).Batch adsorption experiments were conducted to inves-tigate the effect of adsorption time,temperature,pH,and absorbent dose on kitchen oil adsorption performance.Then the practical application for the removal of kitchen oil using MSAR600℃ was also performed.The results showed that MSAR600℃ had a higher removal efficiency for kitchen oil(75.98%),compared with the commercial detergent(72.3%).This study demonstrates an example of fabricating a green tableware detergent for enhanced removal performance of kitchen oil. 展开更多
关键词 Laver biochar surfactant modification kitchen oil removal mechanism
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Potential therapeutic targets for the prevention of diabetic nephropathy:Glycyrrhetinic acid
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作者 lu cai Michael Horowitz Md Shahidul Islam 《World Journal of Diabetes》 SCIE 2023年第12期1717-1720,共4页
Uncontrolled hyperglycemia or poorly managed disease increases the propensityfor a number of diabetes-related complications targeting major organs includingthe heart, eyes, and kidney. Although the mechanisms by which... Uncontrolled hyperglycemia or poorly managed disease increases the propensityfor a number of diabetes-related complications targeting major organs includingthe heart, eyes, and kidney. Although the mechanisms by which diabetes inducescardiovascular diseases include oxidative stress and inflammation, when insulinresistance remains the key to the pathogenesis, as implicated in the two reviews inthis issue. This editorial mainly comments on the potential preventive applicationof glycyrrhetinic acid (or 18β-GA) in relation to diabetic nephropathy. The therapeuticor preventive effects of 18β-GA, as a hydrolytic product of glycy-rrhizicacid that is a component of licorice, have been appreciated in other disorders, buthave received much less attention in relation to diabetic complications. A study inthis issue has identified 18β-GA as a therapeutic for preventing diabeticnephropathy and provides evidence to support efficacy in cultured human renaltubule cells in vitro. Although it represents a pilot study, the observations supporta new therapeutic approach that warrants further ex-ploration. 展开更多
关键词 Insulin resistance Diabetic cardiomyopathy Diabetic nephropathy Glycyrrhetinic acid LICORICE Chinese herbal remedy
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洞庭湖湿地3个林龄杨树人工林叶与土壤碳氮磷生态化学计量特征 被引量:20
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作者 靖磊 周延 +2 位作者 吕偲 赵君茹 雷光春 《生态学报》 CAS CSCD 北大核心 2018年第18期6530-6538,共9页
选取洞庭湖洲滩湿地挖沟抬垄造林的6林龄、9林龄和13林龄杨树人工纯林为研究对象,通过比较不同林龄杨树叶及沟垄土壤的C、N、P含量差异,研究湿地杨树人工林不同生长阶段养分元素的分配格局及生态化学计量学特征,揭示杨树种植对洞庭湖湿... 选取洞庭湖洲滩湿地挖沟抬垄造林的6林龄、9林龄和13林龄杨树人工纯林为研究对象,通过比较不同林龄杨树叶及沟垄土壤的C、N、P含量差异,研究湿地杨树人工林不同生长阶段养分元素的分配格局及生态化学计量学特征,揭示杨树种植对洞庭湖湿地生态系统的影响。结果显示,叶N、叶P以及C∶P和N∶P与林龄显著相关,但叶C和C∶N与林龄不相关。3个林龄杨树人工林叶N∶P均大于16,说明P是限制洞庭湖杨树生长发育的主要因子,9林龄叶P量显著低于6林龄和13林龄,而N∶P和C∶P则显著高于6林龄和13林龄,说明P的限制在9林龄尤为显著。3个林龄湿地杨树人工林树垄和树沟土壤有机C、全N和C∶N呈现出与林龄和土层深度的负相关关系,但全P与两者没有显著关系。C∶P在树垄样地中呈现出与林龄和土层深度的负相关关系,而在树沟样地中呈现出与土层深度的正相关关系,与林龄无显著关系。N∶P在9林龄和13林龄树垄样地和6林龄树沟样地中与土层深度呈负相关关系,说明挖沟抬垄造林方式不利于土壤有机C和全N的积累,也不利于维持洞庭湖湿地土壤的肥力。 展开更多
关键词 生态化学计量 洞庭湖湿地 杨树人工林 土壤
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煤灰对熔融性影响分析 被引量:2
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作者 荣令坤 王雄 +3 位作者 赵俊梅 贾凤军 卢财 肖永健 《煤炭技术》 CAS 2019年第8期137-139,共3页
煤的灰熔点对工业用煤有重要的影响,尤其是对于锅炉燃烧,选用了准格尔煤田的17种煤样按照国家标准做灰成分分析,并测得其灰熔点温度。运用数学方法将灰熔点与煤灰成分相关联,通过煤灰总酸总碱和酸碱比含量及主要矿物成分影响灰熔点做具... 煤的灰熔点对工业用煤有重要的影响,尤其是对于锅炉燃烧,选用了准格尔煤田的17种煤样按照国家标准做灰成分分析,并测得其灰熔点温度。运用数学方法将灰熔点与煤灰成分相关联,通过煤灰总酸总碱和酸碱比含量及主要矿物成分影响灰熔点做具体分析,对准格尔煤田的实际生产具有重要的指导作用。 展开更多
关键词 灰熔点 灰成分分析 酸碱比
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煤中矿物质对高温气化反应的影响 被引量:1
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作者 赵俊梅 王雄 +1 位作者 卢财 荣令坤 《煤炭技术》 CAS 2018年第9期362-363,共2页
针对鄂尔多斯地区煤样,对其做灰成分分析,并测得其灰熔融温度,在高温气化条件下,对比原煤焦、脱灰煤焦和添加煤灰的脱灰煤焦在高温气化下的反应活性,通过对比3组煤样CO2转化率的高低,来分析煤灰中的矿物质与高温气化反应之间的关联性,... 针对鄂尔多斯地区煤样,对其做灰成分分析,并测得其灰熔融温度,在高温气化条件下,对比原煤焦、脱灰煤焦和添加煤灰的脱灰煤焦在高温气化下的反应活性,通过对比3组煤样CO2转化率的高低,来分析煤灰中的矿物质与高温气化反应之间的关联性,为实际生产提供可靠的数据。 展开更多
关键词 灰成分 高温气化反应活性 CO2转化率
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基于p53DNA的泽泻醇抗肿瘤分子机制研究 被引量:5
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作者 陆彩 于慧 +3 位作者 徐飞 谷巍 吴启南 陈军 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2018年第12期3683-3691,共9页
研究泽泻醇类化合物23-乙酰泽泻醇B(alisol B 23-acetate,23B)、24-乙酰泽泻醇A(alisol A 24-acetate,24A)混合物(24A∶23B含量比=1∶1)与抑癌基因p53DNA的作用机理,探讨泽泻醇类化合物抗肿瘤作用的分子机制。紫外-可见吸收光谱法、荧... 研究泽泻醇类化合物23-乙酰泽泻醇B(alisol B 23-acetate,23B)、24-乙酰泽泻醇A(alisol A 24-acetate,24A)混合物(24A∶23B含量比=1∶1)与抑癌基因p53DNA的作用机理,探讨泽泻醇类化合物抗肿瘤作用的分子机制。紫外-可见吸收光谱法、荧光光谱法与分子模拟联用探讨23B,24A及24A-23B混合物与p53DNA的作用方式。紫外光谱显示泽泻醇单体与其混合物部分嵌插入p53DNA,他们使p53DNA紫外吸收降低的程度为:24A∶23B(1∶1)> 23B> 24A。荧光光谱显示泽泻醇单体及其混合物与p53DNA的相互作用模式均为嵌插结合,结合强度为:24A∶23B(1∶1)> 23B> 24A。分子模拟显示,泽泻醇单体及其混合物与p53DNA结合能的大小顺序为:24A∶23B (1∶1)> 23B> 24A,23B与p53DNA f链的腺嘌呤脱氧核苷酸(DA4)形成1个氢键,24A-23B复合物与p53DNA的DA4、胸腺嘧啶脱氧核苷酸(DT19)形成4个氢键。24A,23B及其混合物与p53DNA结合的强度顺序:24A∶23B (1∶1)> 23B> 24A,表明24A和23B对抗癌靶点p53DNA具有协同作用,三者与p53DNA的作用方式均为部分嵌插结合。同时,泽泻醇化合物母环C14-和结构中的空间位阻,p53DNA f链的DA4中磷酸上的氧原子为泽泻醇类化合物与p53DNA相互作用的关键结合位点,是该类泽泻醇发挥抗肿瘤作用的活性中心。24A侧链C19-上的羟基,p53DNA f链的DA4中腺嘌呤上的氮原子和氧原子,e链的DT19中胸腺嘧啶上的氧原子为泽泻醇类化合物协同增效作用的关键。 展开更多
关键词 泽泻醇单体 泽泻醇混合物 p53DNA 光谱法 分子模拟
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膜式水冷壁时变热边界条件的模型预测反演 被引量:2
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作者 吕财 王广军 +1 位作者 陈红 陈泽弘 《中国电机工程学报》 EI CSCD 北大核心 2019年第12期3598-3604,共7页
基于模型预测控制思想,研究膜式水冷壁向火侧辐射热流密度、水冷壁管内部流体温度和水冷壁管内部对流换热系数的同时反演问题。在该反演方案中,采用阶跃响应函数建立水冷壁温度的预测模型,利用布置于水冷壁背火侧的温度测点,通过滚动优... 基于模型预测控制思想,研究膜式水冷壁向火侧辐射热流密度、水冷壁管内部流体温度和水冷壁管内部对流换热系数的同时反演问题。在该反演方案中,采用阶跃响应函数建立水冷壁温度的预测模型,利用布置于水冷壁背火侧的温度测点,通过滚动优化同时反演膜式水冷壁的多个时变传热边界条件。基于反算获得的时变传热边界条件,求解水冷壁的温度分布控制方程,可以实现水冷壁温度场的在线重构。利用数值仿真试验验证了上述方案的有效性,并讨论了温度测量误差以及未来时间步数对热边界条件反演结果的影响。 展开更多
关键词 水冷壁 传热边界条件 反演 模型预测控制 温度场重构
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灰熔点预测模型适应性研究 被引量:2
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作者 贾凤军 卢财 +3 位作者 赵俊梅 荣令坤 王雄 周广 《煤炭技术》 CAS 2018年第7期281-283,共3页
针对鄂尔多斯地区煤样,对其做灰成分分析,并测得其灰熔融温度,将煤的灰熔点与煤灰中的化学组成含量建立数学关系,采用统计学的方法运用曲线拟合建立3种灰熔点预测模型,将通过预测模型得到的灰熔融点流动温度的预测值与实测值进行对比分... 针对鄂尔多斯地区煤样,对其做灰成分分析,并测得其灰熔融温度,将煤的灰熔点与煤灰中的化学组成含量建立数学关系,采用统计学的方法运用曲线拟合建立3种灰熔点预测模型,将通过预测模型得到的灰熔融点流动温度的预测值与实测值进行对比分析,通过对比分析发现,在计算过程中运用曲线拟合建立的灰熔点预测模型的预测值与实测值一致性较好,ΔFT基本满足国际允许标准值。 展开更多
关键词 灰成分 曲线拟合 灰熔点预测模型
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煤灰成分与灰熔融性的关联性分析 被引量:10
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作者 卢财 赵俊梅 +2 位作者 荣令坤 贾凤军 王雄 《洁净煤技术》 CAS 2018年第2期74-78,共5页
为研究鄂尔多斯地区煤灰成分对灰熔融性的影响,分析了煤灰总酸、总碱、酸碱比、熔融指数FI以及煤灰成分对灰熔融性的影响,并结合MATLAB软件对数据进行拟合,得出煤灰熔融温度的回归公式。结果表明,随着酸碱比增加,煤灰熔融温度逐渐升高,... 为研究鄂尔多斯地区煤灰成分对灰熔融性的影响,分析了煤灰总酸、总碱、酸碱比、熔融指数FI以及煤灰成分对灰熔融性的影响,并结合MATLAB软件对数据进行拟合,得出煤灰熔融温度的回归公式。结果表明,随着酸碱比增加,煤灰熔融温度逐渐升高,酸碱比大于3.65时,煤灰熔融温度大幅提升。依据灰熔融温度回归公式得出熔融指数FI最小值为35.67%,但其预测公式并不能很好地反映FT增减趋势。在气化用煤中,多种矿物共同决定煤灰熔融温度。当Si/Al<3、CaO含量<30%时,煤灰熔融温度较低;当CaO含量超过30%、Fe_2O_3含量超过20%时,会产生单体CaO、FeO,其具有较高的熔融温度,煤灰熔融温度也相应升高。 展开更多
关键词 煤灰成分 灰熔融性 酸碱比 熔融指数
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钻孔工件移动热边界条件估计及温度场重构
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作者 吕财 王广军 +2 位作者 陈红 章广祥 陈泽弘 《西安交通大学学报》 EI CAS CSCD 北大核心 2019年第1期18-24,43,共8页
针对钻孔加工过程中工件受热边界条件难以直接准确测量的问题,建立了一种模型预测反演方案,并将该方法用于钻孔工件移动热边界条件的估计。在该方案中,采用阶跃响应系数建立工件温度的非参数化预测模型。利用工件的部分温度测量信息,通... 针对钻孔加工过程中工件受热边界条件难以直接准确测量的问题,建立了一种模型预测反演方案,并将该方法用于钻孔工件移动热边界条件的估计。在该方案中,采用阶跃响应系数建立工件温度的非参数化预测模型。利用工件的部分温度测量信息,通过滚动优化实现工件移动热边界条件的反演。文中利用数值仿真试验验证了上述方法的有效性,分析了钻具进给速度、温度测量误差、测点数以及未来时间步数对反演结果的影响,并以测量标准差为0.05℃下反求得到的边界条件为已知信息,重构了工件的瞬态温度场。研究结果表明:本文方案能够有效反演工件的移动热边界条件,且具有一定的抗干扰能力;此外,由于不需要对未来一段时间内移动热边界条件的变化进行假设,使得本文的方案降低了反演结果对于未来时间步数的依赖性。本研究为钻孔工件瞬态温度场的重构提供了一种解决方案。 展开更多
关键词 钻孔 移动热边界条件 反问题 模型预测控制 温度场重构
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Numerical Investigation of the Deposition Characteristics of Snow on the Bogie of a High-Speed Train 被引量:3
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作者 lu cai Zhen Lou +2 位作者 Nan Liu Chao An Jiye Zhang 《Fluid Dynamics & Materials Processing》 EI 2020年第1期41-53,共13页
To investigate the deposition distribution of snow particles in the bogie surfaces of a high-speed train,a snow particle deposition model,based on the critical capture velocity and the critical shear velocity,was elab... To investigate the deposition distribution of snow particles in the bogie surfaces of a high-speed train,a snow particle deposition model,based on the critical capture velocity and the critical shear velocity,was elaborated.Simulations based on the unsteady Reynolds-Averaged Navier-Stokes(RANS)approach coupled with Discrete Phase Model(DPM)were used to analyze the motion of snow particles.The results show that the cross beam of the bogie frame,the anti-snake damper,the intermediate brake clamps in the rear wheels,the traction rod and the anti-rolling torsion bar are prone to accumulate snow.The accumulation mass relating to the vertical surface in the rear region,horizontal surface in the front region and the corner area of the bogie is high.The average snow accumulation mass for each component ordered from high to low is as follow:traction rod,frame,bolster,brake clamp 2,anti-rolling torsion bar,brake clamp 1,transverse damper,axle box 2,axle box 1,air spring,anti-snake damper,tread cleaning device.The snow accumulation mass on the front components of the bogie is more significant than that relating to the rear components.Particularly,the average snow accumulation mass of rear brake clamp 2 and axle box 2 is about twice as high as that of the front brake clamp 1 and axle box 1. 展开更多
关键词 High-speed train BOGIE discrete phase model snow drift snow accumulation
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微纳成型力学 被引量:1
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作者 吴伯朝 鲁才 刘泽 《力学进展》 EI CSCD 北大核心 2022年第1期153-179,共27页
利用材料的塑性变形能力制造各种零部件被广泛应用于汽车、航空航天、消费电子和医疗设备等领域.随着器件小型化的发展趋势,开发新的微纳成型(或微纳尺度塑性变形)工艺成为制造业发展的核心问题之一.近年来,产业界和学术界对微纳成型技... 利用材料的塑性变形能力制造各种零部件被广泛应用于汽车、航空航天、消费电子和医疗设备等领域.随着器件小型化的发展趋势,开发新的微纳成型(或微纳尺度塑性变形)工艺成为制造业发展的核心问题之一.近年来,产业界和学术界对微纳成型技术进行了广泛的研究,在开发微纳成型工艺、深入理解尺寸效应和变形行为等方面都取得了显著进展.本文将聚焦不同材料体系如聚合物、非晶合金与晶体金属在微纳成型过程中的变形机理及其尺寸效应,综述微纳成型技术的最新研究进展.最后,对金属微纳成型面临的技术挑战及其关键力学问题进行展望. 展开更多
关键词 微纳成型 聚合物 非晶合金/金属玻璃 晶体金属 纳米压印/纳米模铸 超塑性
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Facile Preparation of a Porous Biochar Derived from Waste Crab Shell with High Removal Performance for Diesel 被引量:1
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作者 Xiao Han Zhaodi Wu +5 位作者 Yi Yang Jian Guo Yaning Wang lu cai Wendong Song Lili Ji 《Journal of Renewable Materials》 SCIE EI 2021年第8期1377-1391,共15页
In this study,a porous biochar material derived from waste crab shell was prepared by one-step hydrothermal carbonization and acetic acid activation method at 180°C,which was characterized by SEM,BET,XRD and FTIR... In this study,a porous biochar material derived from waste crab shell was prepared by one-step hydrothermal carbonization and acetic acid activation method at 180°C,which was characterized by SEM,BET,XRD and FTIR.The results show that the as-prepared crab shell biochar(CSB)exhibits a fluffy irregular layered structure with abundant pores and oxygen-containing functional groups,which can facilitate the adsorption of diesel using CSB.In addition,batch adsorption experiments had been performed,effects of initial diesel concentration,adsorption time,adsorbent dosage and pH on the diesel adsorption using CSB were analyzed,which could be observed that CSB has high removal efficiency for diesel,and the maximum removal rate is up to 80.1%.The adsorption isotherms and kinetic studies were also investigated to determine the adsorption mechanism of diesel using CSB,the results show that the Langmuir model and the pseudo-second-order model are more suitable for describing the adsorption of diesel using CSB,indicating that the adsorption of diesel oil by CSB is monolayer chemical adsorption.This study will provide a theoretical basis for the high-value utilization of waste crab shell,which has a great potential in the treatment of oil spill. 展开更多
关键词 Waste crab shell BIOCHAR ADSORPTION diesel wastewater
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Meeting report of the chief editorial board meeting for World Journal of Diabetes 2021 被引量:1
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作者 Jin-Lei Wang Jia-Ping Yan +6 位作者 Xiang Li Md Shahidul Islam Jian-Bo Xiao lu cai Na Ma Li Ma Lian-Sheng Ma 《World Journal of Diabetes》 SCIE 2021年第12期1969-1978,共10页
The 2021 online editorial board meeting of the World Journal of Diabetes(WJD)was held on November 9,2021.Jin-Lei Wang,General Manager on behalf of the Baishideng Publishing Group,and Professor Islam,one of the Editors... The 2021 online editorial board meeting of the World Journal of Diabetes(WJD)was held on November 9,2021.Jin-Lei Wang,General Manager on behalf of the Baishideng Publishing Group,and Professor Islam,one of the Editors-in-Chiefs(EiCs)of the WJD,organized the meeting.Three EiCs and 18 Baishideng Publishing Group staff attended the meeting.The meeting goal was to brief the EiCs on the journal’s performance,discuss the issues of concern of the EiCs,and gather ideas for the journal’s development in 2022.As of November 8,the WJD had received 287 manuscripts since the year’s start,among which 122 met the criteria for publication.These numbers represent an increase of 117.4%for submissions and 110.3%for publications compared to those in 2020.However,how to effectively control the academic quality of manuscripts and attract highquality original article submissions remain a challenge.The EiCs provided feedback and suggestions centered on three topics:(1)Who should and how to control the academic quality of the manuscripts;(2)How the EiCs perform their responsibilities;and(3)The distinctive and shared responsibilities of the publisher and the EiCs. 展开更多
关键词 World Journal of Diabetes Baishideng Editorial board meeting Journal development BIBLIOMETRICS Scientific literature
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Identification of Growth-promoting Bacteria from Rhizosphere of Pastures and Their Effects on Growth of Lotus corniculatus L. 被引量:1
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作者 lu cai Yajiao LI +2 位作者 Xiaoxia LIU Xin WEI Jianhong SHU 《Agricultural Biotechnology》 CAS 2019年第5期106-111,共6页
[Objectives] This study was conducted to explore the interaction between nitrogen-fixing and phosphate-solubilizing strains and the optimal combination of different functional strains,in order to provide a theoretical... [Objectives] This study was conducted to explore the interaction between nitrogen-fixing and phosphate-solubilizing strains and the optimal combination of different functional strains,in order to provide a theoretical basis for the development of PGPR compound fertilizers suitable for local environment.[Methods] In this study,16S rDNA gene sequence analysis was used to identify fast-growing and competitive strains from pasture nodules and rhizosphere soils in Guizhou Province,and three representative Rhizobia and phosphorus-solubilizing bacteria were chosen for the test of bacterial combination when reducing 50% of nitrogen and 30% of phosphorus.The effects of different strain combinations on the plant height,root length,aboveground and underground biomass of Lotus corniculatus L.were investigated,and the total nitrogen and total phosphorus contents of the plants were determined.[Results] The mixed bacterial agents could promote the increase of root biomass,and the effects of A1,A3,B3 and C3 were the most obvious.The fresh weight and dry weight of the roots of L.corniculatus increased by 30.35%-168.45% and 26.43%-180.00%,respectively,and A3,B3,B2 and C3 had the best effects.The total phosphorus content of the plants increased by 12.79%-55.25% compared with the CK2;and most of the bacterial agents with significant growth-promoting effects showed decreased total nitrogen contents,while those with non-significant growth-promoting effects showed significantly-increased total nitrogen contents,which were not as much as the CK1.Comprehensively,the most productive combination was C3,namely R27-2 Rhinohizobium fredii and P33-3 Stenotrophomonas rhizophila.[Conclusions] This study can provide a theoretical basis for the production and promotion of bacterial fertilizers. 展开更多
关键词 GROWTH-PROMOTING BACTERIA LOTUS corniculatus L. BIOMASS Quality
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化工企业安全风险管理和隐患排查管理措施 被引量:5
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作者 路才 侯宝明 王彦 《中小企业管理与科技》 2019年第29期5-6,共2页
化工企业生产活动具有较高的风险性,如安全风险管理工作不到位,极易造成安全事故,严重的甚至会造成社会安全问题。为此,加强对化工企业生产安全风险管控,提高隐患排查的管理能力,可以更好地确保化工生产的安全性,满足化工市场的实际需求... 化工企业生产活动具有较高的风险性,如安全风险管理工作不到位,极易造成安全事故,严重的甚至会造成社会安全问题。为此,加强对化工企业生产安全风险管控,提高隐患排查的管理能力,可以更好地确保化工生产的安全性,满足化工市场的实际需求,提高企业的生产能力,也有助于社会的安全稳定。因此,论文就化企工业强化安全风险管理和排查隐患管理提出了相关对策。 展开更多
关键词 化工 安全风险 管理 隐患排查
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