探析武术教学对民族传统文化的传承简

采用文献资料法、访谈调查法和综合分析法就以武术为媒介传承民族文化精神作出探索并分析，求证武术与传统文化的密切联系，发现了武术教学在传承民族文化时存在被竞技体育形式化，武德教育缺失，良好传统被扭曲等尴尬之处，并指出武术教学改革应重点把握武术基础理论、武德、习武的精神要义、功法原理等，可以利用各种传媒，利用多种特色鲜明的技术内容，利用传统招法名称教学等方法进行民族传统文化的传承。     

环境工艺方法论研究——转向思维法

转向思维法是现代环境工艺中一类非常重要的方法。本文论述了转向思维法的定义,枚举了该方法在环境工艺中的应用成果,并在此基础上讨论了它的哲学内涵。     

Dielectric barrier discharge plasma-assisted modification of g-C3N4/Ag2O/TiO2-NRs composite enhanced photoelectrocatalytic activity

Dielectric barrier discharge (DBD) plasma applied as surface treatment technology was employed for the modification of Ag₂O and graphitic carbon nitride (g-C₃N₄) powders. Subsequently, the pretreated powders were sequentially loaded onto TiO₂ nanorods (TiO₂-NRs) via electro-deposition, followed by calcination at N₂ atmosphere. The results indicated that at the optimal plasma discharge time of 5 min for modification of g-C₃N₄ and Ag₂O, photocurrent density of ternary composite was 6 times to bare TiO₂-NRs under UV-visible light irradiation. Phenol was degraded by using DBD plasma-modified g-C₃N₄/Ag₂O/TiO₂-NRs electrode to analyze the photoelectrocatalytic performance. The removal rate of phenol for g-C₃N₄-5/Ag₂O-5/TiO₂-NRs electrode was about 3.07 times to that for TiO₂-NRs electrode. During active species scavengers’ analysis, superoxide radicals and hydroxyl radicals were the main oxidation active species for pollutants degradation. A possible electron-hole separation and transfer mechanism of ternary composite with high photoelectrocatalytic performance was proposed.     

Cow dung-derived biochars engineered as antibacterial agents for bacterial decontamination

Disposal of the pollutants arising from farming cattle and other livestock threatens the environment and public safety in diverse ways. Herein, we report on the synthesis of engineered biochars using cow dung as raw material, and investigating these biochars as antibacterial agents for water decontamination. By coating the biochars with N-halamine polymer and loading them with active chlorine (i.e., Cl⁺), we were able to regulate them on demand by tuning the polymer coating and bleaching conditions. The obtained N-halamine-modified biochars were found to be extremely potent against Escherichia coli and Staphylococcus aureus. We also investigated the possibility of using these N-halamine-modified biochars for bacterial decontamination in real-world applications. Our findings indicated that a homemade filter column packed with N-halamine-modified biochars removed pathogenic bacteria from mining sewage, dairy sewage, domestic sewage, and artificial seawater. This proposed strategy could indicate a new way for utilizing livestock pollutants to create on-demand decontaminants.     

炼油装置塔顶回流系统腐蚀及控制

针对塔顶回流管线腐蚀泄漏导致的严重着火爆炸事故,对装置塔顶回流管线腐蚀情况进行排查及管控工作,及时获得易腐蚀部位的运行情况。通过排查典型炼油装置塔顶回流系统运行情况,采用涡流扫查、超声定点测厚、电磁超声等在线监测技术对各装置塔顶回流系统腐蚀减薄情况进行检测,建立炼化装置塔顶回流系统腐蚀控制系列措施和管理系统,提前发现、预防、处置因腐蚀而导致塔顶回流管线泄漏等问题,管理前移,达到预防塔顶回流系统腐蚀效果。     

深圳城市大气PM2.5中金属元素的在线测量与来源特征

大气PM_(2.5)中很多金属元素危害人体健康,且具有源示踪性,因此,开展PM_(2.5)中金属在线监测对污染来源分析和大气污染防治有着重要意义.本研究于2017年4—5月使用美国Cooper环境空气多金属在线监测仪对深圳城市大气PM_(2.5)中金属元素进行连续观测.与同步离线采样测量的金属数据进行比对表明,10种元素(K、Zn、Cu、Mn、Fe、V、Ni、Ti、Pb、Cr)呈现良好的相关性,因而用于后续分析.观测期间大气PM_(2.5)的平均浓度24.8μg·m~(-3),其中10种金属元素总浓度为0.72μg·m~(-3),占比2.9%.Mn、Fe、Cu、Zn和Ti的浓度日变化显示了日间高、夜间低的特征,表明受到本地人为源的显著影响;而K、Pb、Cr浓度日变化无明显波动,说明受区域传输影响较大;Ni与V日变化趋势一致,主要来源为船舶排放.主成分因子分析结果表明,观测期间PM_(2.5)中金属污染来源主要为交通和扬尘源、工业排放/废物燃烧和船舶污染,方差贡献依次为54.3%、19.8%和8.8%.     

针铁矿/H_2O_2体系对染料橙黄Ⅱ光化学脱色的实验研究

以针铁矿(α-FeOOH)为光催化剂,在金属卤灯(λ≥365 nm)照射下,对α-FeOOH与H2O2组成的非均相Fenton体系内橙黄Ⅱ的脱色进行了研究。考察了初始pH值、α-FeOOH用量、H2O2浓度和反应时间对橙黄Ⅱ脱色过程的影响。结果表明,在α-FeOOH用量为0.3 g/L,H2O2浓度为6 mmol/L,pH 3.0时,橙黄Ⅱ的脱色效果最好,光照90 min后脱色率达到99.4%。橙黄Ⅱ的光降解反应动力学符合Langmuir-Hinshelwood(L-H)动力学方程。对不同时间溶液中的总有机碳(TOC)监测,结果表明体系中橙黄Ⅱ的矿化率较低,通过对溶液中铁(Fe2+和总铁)溶出的测定,说明可能的反应涉及针铁矿表面的铁循环。     

吹扫捕集-气相色谱法测定水中乙醛、丙烯醛和丙烯腈的方法研究

建立了吹扫捕集-气相色谱法测定水中乙醛、丙烯醛和丙烯腈的分析方法。进行了吹扫时间和温度的优化,同时对线性范围、方法检出限、精密度、加标回收率和7个工作日连续校准等进行实验。在50℃下,吹扫时间为20min时。该方法乙醛、丙烯醛和丙烯腈的检出限分别为0．005mg／L、0．007mg／L和0．004mg／L,相对标准偏差分别为1．9％-5．1％、3．1—6．8％、1．7％～5．6％,加标回收率分别为92．6％～108％、92．0％-107％、95．3％～105％。结果表明,吹扫捕集气相色谱法测定水中乙醛、丙烯醛和丙烯腈方法简单快捷,灵敏度高,准确性和重现性好,能满足地表水环境质量标准的要求,具有较好的推广性。     

中韩土壤修复技术筛选重金属耐受性和超富集植物方法比较

比较中国、韩国土壤修复技术中筛选重金属耐受性植物、重金属超富集植物方法的差异。实际操作中采用哪种方法取决于污染区域的实地状况、修复目标和拟修复时间的长短。对于土壤修复而言,耐受性植物,超富集植物的筛选是非常重要的环节,两国技术方法的差异可以作为制定修复措施的有益参考。