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The Study on the Heat Transfer Characteristics of Oxygen Fuel Combustion Boiler

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Journal of Thermal Science 2016年第5期25卷 470-475页

作者： WU Haibo LIU Zhaohui liao haiyan Shenhua Guohua Electric Power Research Institute(Bering)Co.Ltd. Beijing 100025China Huazhong University of Science and Technology Wuhan 430074China

According to 350 MW and 600 MW boilers,under oxygen fuel condition,through the reasonable control of the primary and secondary flow and the correct option and revision of mathematical model,the temperature distribution,heat flux distribution and absorption heat distribution,*** obtained which compared with those under air *** calculation,it is obtained that the primary and secondary flow mixed well,good tangentially fired combustion in furnace was formed,the temperature under air condition obviously higher than the temperature under O26 *** adiabatic flame temperature of wet cycle was slightly higher than that of dry *** maximum heat load appeared on the waterwall around the burner *** heat load gradually decreased along the furnace height up and down in burner *** heat absorption capacity of the furnace under O26 was lower than that under the air *** heat absorption capacity of the platen heating surface under 026 was equal to that under air *** the heat absorbing capacity of waterwall under O26 was about 7%~12% less than that under air condition.

关键词： Large-scale boiler Oxygen fuel combustion Heat transfer characteristics Numerical calculation

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污染物周期性排放的二维平流扩散方程解析解

韶关学院学报 2024年第3期45卷 12-17页

作者：梁瑞时张有存廖海燕韶关学院数学与统计学院广东韶关512005

为更好地理解和管理污染物周期性排放对自然环境的影响,研究了重金属污染物在土壤层呈周期性排放的二维平流扩散方程中的解析解问题.基于二维模型方程,利用拉普拉斯变换技术,得到源汇项以周期性函数的时间依赖的解析解.结果强调了重金... 详细信息

为更好地理解和管理污染物周期性排放对自然环境的影响,研究了重金属污染物在土壤层呈周期性排放的二维平流扩散方程中的解析解问题.基于二维模型方程,利用拉普拉斯变换技术,得到源汇项以周期性函数的时间依赖的解析解.结果强调了重金属浓度呈周期性排放的显著下降,并强调了周期性排放对浓度峰值的影响及源汇作用在预测和管理控制重金属污染方面的重要性,为进一步深入研究二维平流扩散方程中的周期性排放问题提供基础.

关键词：拉普拉斯变换周期性排放二维平流扩散解析解重金属

高职临床医学专业《社区常用护理技术》活页式教材开发的研究

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卫生职业教育 2024年第17期42卷 41-44页

作者：孙慧群廖海艳赵久华黄纯富皖西卫生职业学院安徽六安237000 皖西卫生职业学院附属医院安徽六安237000 金安区东市街道淠河社区卫生服务站安徽六安237000

立足于当前我国职业教育改革背景,分析高职临床医学专业社区常用护理技术课程现有教材的不足,采取产教融合、校企合作模式,开发了一部新型活页式教材。该教材采用项目任务式编写模式,根据人才培养目标、岗位需求及执业资格考试要求等重... 详细信息

立足于当前我国职业教育改革背景,分析高职临床医学专业社区常用护理技术课程现有教材的不足,采取产教融合、校企合作模式,开发了一部新型活页式教材。该教材采用项目任务式编写模式,根据人才培养目标、岗位需求及执业资格考试要求等重构教学内容,以任务驱动、技能训练为中心,设计多个环节,实现教、学、做、评一体化。同时整合数字化资源,以提高教学互动性和学生学习自主性。

关键词：《社区常用护理技术》活页式教材高职临床医学专业

MRS and diffusion tensor image in mild traumatic brain injuries

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Asian Pacific Journal of Tropical Medicine 2012年第1期5卷 67-70页

作者： Jing Chen Hu Jin Ying Zhang Qizhou Liang haiyan liao Ziyi Guo Xiangjun Han Radiology Department Municipal Hospital of HaiKou

Objective:To analyze characters of magnetic resonance spectroscopy(MRS) and diffusion tensor imaging(DTI) in the diagnosis of mild trauma brain injuries(MTBI) in frontal lobe and to compare with conventional magnetic resonance imaging(MRI).Methods:A total of 21 patients were selected,who all aged 12-51 years old and had injury within 24 *** tomography (CT) and the Glasgow Coma Scale were used to evaluate the degree of *** patients were diagnosed as MTBI,and 19 had conventional MRI,MRS and *** major parameters of MRS were Probe-P sequence,TE= 144 or 35 ms,and both single voxel spectrum and chemical shift imging were *** major parameters of DTI were diffusion directions =15,b value = 1000 s/mm^2. Frational anisotropic(FA) map and average ADC map were obtained to evaluate DTI result. Positive deletion ratio was observed and the imaging changes were compared between injured side and normal ***:All 21 patients had CT scan and Glasgow scale.A total of 19 patients had conventional *** and *** of CT and conventional MRI showed no significant abnormality in lobe,and Glasgow scale showed mild *** result showed significant decrease in N-acetyl aspartate(NAA) and NAA/creatine(Cr) in 13 cases(68.4%) (P<0.001),and increase in lactic acid(Lac) in 7 cases(36.8%).FA mapping of the frontal lobe displayed significant changes in 7 cases(36.8%),with 5 out of the 7 cases having increase in FA *** there was no significant difference in average ***:MRS and DTI might be more sensible than other methods,such as CT and conventional MRI in diagnosis of *** particular changes were reduced NAA and increased Lac for *** increased FA values for DTI.

关键词： Mild trauma brain injures Magnetic resonance spectroscopy Diffusion tensor image Fractional anisotropic mapping

Prevalence and Spectrum of Complex Congenital Heart Disease in the Neonatal Intensive Care Unit at High Altitude in China

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Congenital Heart Disease 2021年第1期16卷 45-52页

作者： Jingjing Li Xiaorong Wang Yuan Liu Guodong Zhao Ting Dai Hong Chen haiyan liao Haiying Qi Jia Li Department of Obstetrics and Gynecology Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Neonatology Women and Children’s Hospital of Qinghai ProvinceXiningChina Department of Echocardiography Women and Children’s Hospital of Qinghai ProvinceXiningChina Intensive Care Unit Capital Institute of PediatricsBeijingChina Clinical Physiology Laboratory Institute of PediatricsGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina Clinical Physiology Laboratory Institute of PediatricsBeijingChina

Background:Previous studies from high altitudes have reported significantly higher prevalence of congenital heart disease(CHD),consisting almost solely of simple *** is known about the occurrence of complex *** with complex CHD are likely admitted to *** examined the prevalence and spectrum of complex CHD in NICU in order to depict a truer picture of CHD at high ***:We reviewed charts of 4,214 neonates admitted to NICU in Qinghai province(average altitude 3,000 m).Echocardiography was performed in 1,943 babies when CHD was suspected based on clinical ***:CHD was diagnosed in 1,093(56.3%of echoed babies).Mild CHD in 96.8%(1058 babies).Moderate CHD in 0.8%(9)included 1(0.1%)large secundum atrial septal defect,3(0.3%)moderate pulmonary stenosis,2(0.2%)aortic stenosis and 3(0.3%)partial anomalous pulmonary venous *** CHD in 2.4%(26)included 6(0.5%)complete atrioventricular septal defect,5(0.5%)complete transposition of the great arteries,5(0.5%)hypoplastic right heart,3(0.3%)hypoplastic left heart,3(0.3%)double outlet right ventricle,3(0.3%)tetralogy of Fallot,2(0.2%)truncus arteriosus,2(0.2%)total anomalous pulmonary venous connection,2(0.2%)severe aortic stenosis,2(0.2%)interrupted aortic arch and 2(0.2%)severe pulmonary stenosis and 1(0.1%)single-ventricle *** two-years follow-up in 737(67.4%)patients,18(90%)with severe CHD and 38(5.3%)with mild and moderate CHD died,and 15 underwent cardiac surgery with 1 early ***:At high altitude,a wide spectrum of CHD exists,with many heretofore unreported complex *** is urgent need for routine echocardiography and early interventions in newborns particularly in NICU.

关键词： Congenital heart disease neonatal intensive care unit high altitude

Claudin18.2分子特征概述及其作为治疗靶点在胃癌中的研究进展

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肿瘤综合治疗电子杂志 2024年第2期10卷 146-154页

作者：王桂慧廖海燕何媚靳枫王树滨高静汕头大学医学院广东汕头515041 北京大学深圳医院肿瘤科广东深圳518036

作为紧密连接蛋白(Claudin,CLDN)家族成员之一,Claudin18.2(CLDN18.2)在正常情况下仅在正常胃黏膜上皮细胞中表达,以维持细胞正常功能。但在异常情况下,CLDN18.2在包括胃癌在内的多种恶性肿瘤中呈高表达状态,使其成为治疗前景非常高的... 详细信息

作为紧密连接蛋白(Claudin,CLDN)家族成员之一,Claudin18.2(CLDN18.2)在正常情况下仅在正常胃黏膜上皮细胞中表达,以维持细胞正常功能。但在异常情况下,CLDN18.2在包括胃癌在内的多种恶性肿瘤中呈高表达状态,使其成为治疗前景非常高的新靶点。目前,靶向CLDN18.2的抗肿瘤新药研发如火如荼,药物类型和治疗策略呈现多样化。本文旨在概述CLDN18.2的分子特征,并对胃癌中靶向CLDN18.2的新药/新技术研发现状进行梳理,包括单克隆抗体、双特异性抗体、抗体药物偶联物、嵌合抗原受体T细胞免疫疗法、纳米抗体等。

关键词：胃癌紧密连接蛋白 Claudin18.2(CLDN18.2) 分子特征治疗靶点

壳聚糖/明胶/纳米氧化锌复合膜的制备及其性能研究

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仲恺农业工程学院学报 2024年第1期37卷 43-50,58页

作者：梁宇杰李双双廖海艳李家婵龚圣周新华仲恺农业工程学院化学化工学院广东广州510225 仲恺农业工程学院发展规划部广东广州510225 仲恺农业工程学院教务部广东广州510225

壳聚糖和明胶来源于天然且具有良好的成膜性,但是两者的抑菌性能较差,因而限制了它们在食品包装中的应用.为提高壳聚糖/明胶复合膜的抑菌性,本研究以壳聚糖和明胶为成膜材料并添加纳米氧化锌为抗菌材料,以共混法制备了壳聚糖/明胶/纳米... 详细信息

壳聚糖和明胶来源于天然且具有良好的成膜性,但是两者的抑菌性能较差,因而限制了它们在食品包装中的应用.为提高壳聚糖/明胶复合膜的抑菌性,本研究以壳聚糖和明胶为成膜材料并添加纳米氧化锌为抗菌材料,以共混法制备了壳聚糖/明胶/纳米氧化锌复合膜,探讨了纳米氧化锌含量对壳聚糖/明胶/纳米氧化锌复合膜结构、力学性能以及抑菌性能的影响.研究结果表明,当复合膜中纳米氧化锌含量为0.5%时复合膜抑菌性能最佳,此时其水溶性为17.3%、吸水率为100.0%、拉伸强度为5.5 MPa、断裂伸长率为8.0%、水蒸气透过率为94.72 g·m^(-2)·h^(-1)、透湿系数为2.44×10^(-12)g·cm^(-1)·s^(-1)·Pa^(-1)、金黄色葡萄球菌(Staphylococcus aureus)和大肠杆菌(Escherichia coli)的抑菌圈直径分别为(37.8±0.1) mm和(25.7±0.1) mm,具有良好的力学性能和抗菌性能,在食品保鲜膜,特别是水果保鲜液膜方面有广阔的应用前景.

关键词：纳米氧化锌壳聚糖明胶复合膜抑菌

Caspase-3介导的细胞凋亡与细胞焦亡在肝细胞癌的作用及其中药治疗的研究进展

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现代中医药 2024年第4期44卷 1-6页

作者：郑美娥熊彦凌康徐瑞唐群廖海燕孟斌黎湘黄雷湖南中医药大学湖南长沙410208 湖南中医药大学第一附属医院湖南长沙410007

细胞凋亡与细胞焦亡是两种重要的程序性细胞死亡方式,而半胱氨酸蛋白酶-3(Caspase-3)在这两种死亡方式中都扮演着重要的角色,其参与了内源性、外源性途径介导的细胞凋亡以及Caspase-3/GSDME依赖性细胞焦亡,在肝细胞癌(hepatocellular ca... 详细信息

细胞凋亡与细胞焦亡是两种重要的程序性细胞死亡方式,而半胱氨酸蛋白酶-3(Caspase-3)在这两种死亡方式中都扮演着重要的角色,其参与了内源性、外源性途径介导的细胞凋亡以及Caspase-3/GSDME依赖性细胞焦亡,在肝细胞癌(hepatocellular carcinoma, HCC)的治疗中起到了至关重要的作用。近年来,通过Caspase-3介导细胞凋亡及细胞焦亡治疗肝细胞癌的中药研究文献不断增加,在为肝细胞癌治疗提供思路方面具有巨大潜力。文章就Caspase-3介导的细胞凋亡与焦亡在肝细胞癌的作用及其在中药治疗方面的研究成果作一综述,以期为肝细胞癌的治疗和药物研究提供帮助。

关键词： Caspase-3 细胞凋亡细胞焦亡肝细胞癌中药

Numerical Investigation on Flow and Heat Transfer Performance of Supercritical Carbon Dioxide Based on Variable Turbulent Prandtlnumber Model

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Mechanical Engineering Science 2021年第2期3卷 1-8页

作者： Xiaokai LIU haiyan ZHANG Keyong CHENG Xiulan HUAI haiyan liao Zhongmei ZHANG Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Nanjing Institute of Future Energy System Nanjing 210000China CHN Energy New Energy Technology Research Institute CO. LTD.Beijing 102206China

Flow and heat transfer characteristic of supercritical carbon dioxide(SCO_(2))are numerically investigated in the horizontal and vertical *** turbulent Prandtl number model could well describe the behavior of SCO_(2) affected by the *** the cooling condition,the heat transfer performance of SCO_(2) along the upward direction is best and that along the downward direction is worst when bulk fluid temperatures are below the pseudocritical *** the ratio of heat flux to mass flux could decrease the difference of convective heat transfer coefficient in three flow *** the heating condition,heat transfer deterioration only occurs in vertical upward and horizontal flow *** transfer deterioration of SCO_(2) could be delayed by increasing the mass flux and the deterioration degree is weakened in the second half of tube along the vertical upward flow *** with the straight tube,the corrugated tube shows better comprehensive thermal performance.

关键词： Supercritical carbon dioxide Turbulent Prandtl number Flow and heat transfer Field synergy principle Numerical investigation