2017中国传播论坛暨金砖国家传媒国际研讨会综述

适逢金砖国家领导人第九次会晤在中国厦门召开之际,＂2017中国传播论坛暨金砖国家传媒国际研讨会＂于8月26日在厦门大学成功举办。中国传媒大学校长胡正荣、厦门大学副校长詹心丽先后在开幕式致辞。来自金砖五国以及芬兰、英国、土耳其等国的传媒学者约80人,在五个英文专场和六个中文专场中就＂一带一路＂背景下金砖国家传媒的发展及其对国际传播秩序的挑战,进行了深入研讨

Numerical analysis of grouting radius and grout quantity in fractured rock mass

为预测浆液在裂隙中的扩散范围,建立二维正交裂隙网络宾汉浆液渗流模型,采用中心型有限体积法进行数值模拟。分别研究不同参数下,浆液在裂隙中的扩散范围,给出多因素影响下的注浆扩散半径公式和注浆量公式。研究表明,注浆压力、浆液黏度、浆液剪切强度、裂隙开度和裂隙粗糙度对浆液扩散半径起到主导作用; 注浆压力、钻孔长度和裂隙开度对注浆量起到主导作用。通过该公式可定量预测任意参量下浆液扩散范围和注浆量

Kilogram Scale-up Preparation of Catalysts and its Reaction Process in Syngas Methanation

甲烷化催化剂是煤制合成天然气核心技术之一,因此研发合成气完全甲烷化催化剂具有重要意义。研究工作采用实验室小试共沉淀制备甲烷化催化剂的最佳工艺条件; 方法,进行单批次1、5和10; kg级(代号cat-1、cat-5、cat-10)催化剂的制备研究。研究了催化剂制备的控制因素和放大制备催化剂的反应性能及催化反应工艺条件。研究; 显示:催化剂制备的控制因素主要包括Na~+含量及晶型结构;放大制备催化剂具有良好的活性、操作稳定性和耐热性能,与小试制备催化剂具有较好的一致性;; 放大制备催化剂(cat-10)在所考察的还原温度、反应H_2/CO比和10000~40000; mL·h~(-1)*g_(cat)~(-1)反应空速范围内具有良好的甲烷化活性。研究结果表明,该研究单批次公斤级催化剂放大制备是成功的,为实现催; 化剂进一步放大制备提供了良好基础。Methanation catalysts play a vital role in the production of synthetic; natural gas (SNG) from coal. Based on bench-scale optimum; co-precipitation conditions of catalyst preparation, scale up; preparation of catalysts for syngas methanation with single batch of 1,; 5 and 10 kg is studied. Factors affecting catalyst; preparation/performance and scale-up were investigated. The results show; that Na~+ content and crystal structure of the catalysts are the; critical factors, and the catalysts prepared under scale-up conditions; possess excellent operation stability and heat resistance, with; consistent performance as those from bench-scale samples. The 10 kg; batch has good reaction activity under studied conditions. Therefore,; the scale-up preparation is successful for the methanation catalyst in; this study, which is useful for future scale-up preparation of related; catalysts

Studies of the Mg-Al and Cation-Incorporated Hydrotalcites

研究了掺杂阳离子水滑石的制备及阳离子对水滑石性质的影响.分别制备了掺杂Zn2+、Ni2+、Fe3+型的水滑石,考察了掺杂阳离子对水滑石晶相结构、层间距、层间阴离子含量、水滑石表面形态、水滑石碱性的影响,结果表明,由于阳离子的引入,导致水滑石层间距减小及层间阴离子结合量降低,且使水滑石培烧产物电负性提高,并最终降低其碱性.以上述水滑石培烧产物作为固体碱催化剂促进苯甲醛和丙醛缩合,合成α-甲基肉桂醛,关联了水滑石培烧产物碱性与反应活性的关系.Mg-Al and cation-incorporated(containing Zn2+?Ni2+?Fe3+) hydrotalcites were synthesized and characterized. A detailed comparative analysis of structure and composition was made. Different cations influenced strongly textural parameters of hydrotalcites and the basicity of the obtained Mg-Al oxides after calcinations. With the cation incorporation, the distance of the brucite and the mount of CO2-3 as the compensating anion changed. Meanwhile the CO2-TPD was used to determine the basicity of the samples. The results showed that the basicity of the calcined hydrotalcites reduced. Finally, the activated hydrotalcite catalysts may efficiently replace homogeneous catalysts in Claisen-Schmidt condensation reaction of the benzaldehyde and propanal. And it was noteworthy that the calcined cation-type(containing Zn2+?Fe3+) hydrotalcites as catalysts did not show significant activity, in agreement with their low basicity.国家自然科学基金(20203014)资助项

运用调和营卫法治疗产后痹浅析

产后痹是指妇女在产褥期或产后,出现肢体疼痛、酸楚、麻木、重着、畏风怕冷、以及关节活动不利等症状的疾病。古今医家在不断探索实践的过程中,对产后痹的认识各有独到的见解。调和营卫法是通过发表解肌的方法,调整机体营卫失衡的状态使其恢复营卫调和平衡的一种治疗方法。营卫不和可致机体正气亏虚,风寒湿邪极易乘虚而入,使外邪留著营卫,致营卫失和,发为本病。营卫不和为产后痹病因的基础,调和营卫法则为产后痹的治法总则。本文主要阐述产后痹关键在于营卫不和的机理,论证调和营卫法是治疗产后痹的重要大法。在临床上应用调和营卫法,以桂枝新加汤为基础,临床上随证加减,疗效确切

LARGE-SCALE EXPOSITION PLANNING AND MANAGEMENT OPTIMIZATION BASED ON VISITORS' BEHAVIOR SIMULATION:A CASE STUDY of QINGDAO INTERNATIONAL HORTICULTURAL EXPOSITION 2014

2014年青岛世园会参观人次众多,需要对参观者行为进行模拟分析,以保证活动安全,提升游客体验。研究提出了通过行为模拟支持规划评价、预警及对策的技术框架。利用路径调查与陈述偏好调查获得参观者行为数据并建立模型,进而在多个情景下对个体行游轨迹进行了模拟仿真,分析预测了参观者排队、密度等参数的时空分布情况。在针对不同类型的评价对象提出各自评价指标的基础上,从模拟结果中辨识可能存在的问题,并从规划与管理两方面提出预警及优化对策。研究证明了对大型展会活动开展参观者行为模拟的技术框架的可行性,其结果对本次世园会具有一定的实践指导意义。It is necessary to simulate visitors' behavior in Qingdao International Horticultural Exposition 2014 for security and high-quality visitor experience due to the huge estimated pedestrian volume.This paper proposes a technical framework in purpose of supporting the assessment, early warning as well as countermeasures based on behavior simulation.Visitors' activity data are collected through a route choice survey and the informants' reported preference, based on which the behavior models are estimated.Visitors' trajectories under several scenarios are simulated, together with the spatio-temporal distributions of visitors' density and queuing behaviors.Criteria are proposed to evaluate each simulated object, based on which indexes are set up, used to identify problems that are likely to happen in the real exposition.In the end, the paper proposes early warnings and countermeasures of both planning and administration.The simulation framework is demonstrated to be feasible and valuable for the exposition.国家自然科学基金项目“基于行为分析的商业综合体空间优化方法研究”的部分成

Studies of the Mg-Al and cation-incorporated hydrotalcites

Mg-Al and cation-incorporated(containing Zn2+Ni2+Fe3+) hydrotalcites were synthesized and characterized. A detailed comparative analysis of structure and composition was made. Different cations influenced strongly textural parameters of hydrotalcites and the basicity of the obtained Mg-Al oxides after calcinations. With the cation incorporation, the distance of the brucite and the mount of CO32- as the compensating anion changed. Meanwhile the CO2-TPD was used to determine the basicity of the samples. The results showed that the basicity of the calcined hydrotalcites reduced. Finally, the activated hydrotalcite catalysts may efficiently replace homogeneous catalysts in Claisen-Schmidt condensation reaction of the benzaldehyde and propanal. And it was noteworthy that the calcined cation-type (containing Zn2+, Fe3+) hydrotalcites as catalysts did not show significant activity, in agreement with their low basicity

一种定量检测人血清高敏C反应蛋白的化学发光免疫方法

旨在建立一种可定量检测人血清高敏CRP的化学发光检测方法(High-sensitivity C-reactive protein quantifiable chemiluminescent immunoassay,hs-CRP CLIA)。首先利用亲和层析和离子交换层析技术从肝硬化病人腹水中纯化出高纯度的天然CRP作为免疫原制备了22株CRP单克隆抗体(单抗),其中13株单抗在磷酸胆碱配体捕获ELISA中呈阳性,然后利用方正滴定法筛选出单抗10C5和10C11建立了hs-CRP CLIA。试剂盒评估结果显示:该方法对血清中干扰物质IgG、血红蛋白、甘油三酯等无非特异性反应;该方法检测灵敏度高,在0.04~20.38mg/L范围内定量检测人血清CRP标准品呈良好线性关系(R2>0.993);该方法准确性高、可重复性好,平均回收率为99%,批内差为4.2%~5.8%,批间差为9.0%~11.5%;该方法与进口商品化高敏CRP ELISA试剂盒平行比较检测90份血清标本,结果显示两者有良好的可比性(r=0.968)。综上,建立的hs-CRP CLIA是一种准确、可靠、可定量的高灵敏C反应蛋白检测方法,该方法的临床应用,有利于改善我国心脏病风险评估及肠炎性疾病预后判断

SURVEY OF MIXED INFECTIONS OF FISH-BORNE TREMATODES IN PINYUAN COUNTY AND DNA(RAPD)ANALYSIS

目的　调查广东省平远县棘隙吸虫及其他鱼源性吸虫混合感染情况。方法　对鱼类宿主取鱼鳃和鱼肉等组织 ,镜检囊蚴 ;用水洗过筛沉淀法粪检虫卵 ,部分虫卵阳性动物解剖检查。采用DNA -RAPD技术 ,比较福建棘隙吸虫广东株与福建株。结果　查出华支睾吸虫 (Clonorchissinensis)、东方次睾吸虫 (Metorchisorientalis)、福建棘隙吸虫 (Echinochasmusfujianensis)、日本棘隙吸虫 (E japonicus)、抱茎棘隙吸虫 (E perfoliatus)和钩棘单睾吸虫 (Haplorchispumilio) 6种。第二中间宿主为麦穗鱼等 11种 ,感染率 48 3% (182 / 377) ,有 92 4%的阳性鱼混合感染 2种以上吸虫囊蚴。保虫宿主狗、猫感染率 79 2 % (19/ 2 4) ,每只阳性动物均有 2种以上吸虫混合感染。 15个引物在福建棘隙吸虫广东株与福建株两者共获DNA片段 185个 ,共享度 (F) =0 984,遗传距离 (D) =0 0 16。结论　当地为人兽共患的多种鱼源性吸虫混合感染区。形态学观察和分子生物学检测结果相印证 ,福建棘隙吸虫广东株与福建棘隙吸虫福建株为同一虫种。Aim To seek the possible existence of mixed infections of Echinochasmus fujianensis and other fish-borne tremtodes in Pinyuan county,Guangdong.Methods Metacercariae of trematodes were detected from gills,muscles and some other tissues of freshwater fish and examintd under microscopy Sedimentation pocedures were used to observe parasite ova in stool Adult worms were obtained from definitive animal hosts upon dissection Experimental animal infection were performed from metacercariae of E fujianensis strains in Fujian and Guangdong,and it's DNA analysis Random amplified Polymorphic DNA(RAPD).Results Six species of trematodes were found,including Clonorchis sinensis,Metorchis orientalis,E fujanensis, E japonicus,E perfoliatus and Haplorchis pumilio Eleven species of freshwater fish comprising Pseudorasbora parve were identified as the second intermediate hosts,with an average positive rate of 48 33%(182/377) The overall mixed infection animal were contracted with 2 or more species Dogs and cats were detected to be reservoir hosts,the total infection rate being 79 2%(19/24).92 4% of infecded fish were contracted with 2 or 6 speies of the metacercariae of trematodes 185 DNA fragments were obtained by 15 primers,F=0 894 and D=0 016 between E fujianensis Guandong and Fujian strain Conclusion There are six species of fish-borne trematodes which may cause infections in human and animal in the regions E fujianensis Guangdong stain and Fujian strain are the same species福建省科技计划基金!资助项目 (No 98-Z - 1 56);; 福建省“百千万人才”人选培养资