Gaoya dianqi, 2017 为了探究温度和湿度对掺杂纳米氧化铝的聚酰亚胺（PI）薄膜耐电晕性能的影响,文中通过原位聚合法制备了氧化铝粒径为20 nm的聚酰亚胺/氧化铝（PI/Al2O3）复合薄膜,在高频方波脉冲下进行纯膜和纳米膜的耐电晕实验,运用扫描电镜对电晕老化前后的薄膜形貌进行分析。实验结果表明:同一电压下,纳米膜耐电晕性能优于纯膜,纳米粒子可改变电荷传输通道,并浮于聚合物表层阻挡进一步侵蚀。随着温度升高,聚合物降解产生的气体分布在基体中,易造成电场畸变而加剧侵蚀,导致薄膜寿命缩短;且纳米膜热导率高于纯膜 ...
钟鑫, 吴广宁
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[Effect of mild hypothermia on behaviors of rats with intracerebral hemorrhage and the possible mechanism]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2020 Peng Y, Lin Y, Hou X, Liao X, Liu J.
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Gongye shui chuli, 2014 研究水中亚硫酸盐的检测方法，确定最佳检测条件。结果表明：最佳检测方法为酸化—水浴—分光光度法；最佳检测条件为：最大吸收波长618 nm、反应介质为pH=6的醋酸-醋酸钠缓冲溶液（体积为1 mL）、孔雀石绿体积为1 mL、反应温度5~30 ℃、反应时间为40 min；适用范围：0~5 mg/L（以SO32-计），最低检出限为0.1 mg/L。
刘玲, 彭静雪, 齐敏, 商晓燕
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Gongye shui chuli水体富营养化问题日益加剧，而传统脱氮除磷工艺在低碳源条件下效率低、成本高。为此，在批次反应器中构建以黄铁矿驱动的混养反硝化体系（PMD），系统探讨黄铁矿投加量、C/N、pH与温度对其脱氮除磷性能的影响。结果表明，黄铁矿投加量为60~150 g/L，C/N为3时，体系脱氮除磷效果最优，总氮和总磷去除率分别达91.73%和99.85%。黄铁矿过量会引发钝化效应和亚硝氮积累，抑制脱氮；C/N过高则抑制自养反硝化，影响除磷。中性（pH=7）与中温（25~35 ℃）条件下协同效能最强。偏酸性抑制酶活性、诱导水解 ...
徐黄欢 +5 more
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[Effects of mild hypothermia on neurological function in rats with spinal cord injury based on adenosine monophosphate activated protein kinase/Nod-like receptor protein 3 pathway]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiPan J, Yang Z.
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[Efficacy of therapeutic hypothermia on mild neonatal hypoxic-ischemic encephalopathy: a prospective randomized controlled study]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHuang J +5 more
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[Association between periconception maternal cold and heat exposure and the risk of congenital heart disease in offspring in China]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanXu H +10 more
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[Expression and clinical significance of lymphocyte subsets in infectious pneumonia and immune-related interstitial lung disease]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhao D +7 more
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[Association between ambient personal temperature exposure and oxygen saturation during sleep in patients with chronic obstructive pulmonary disease]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZuo M +7 more
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Gongye shui chuli短程硝化-厌氧氨氧化（PN/A）工艺因节省曝气能耗、无需外加碳源及污泥产量少等优势，成为城市污水生物脱氮工艺的研究热点。城市污水低温、低氨氮的特性使得PN/A工艺中亚硝酸盐氧化菌（NOB）活性抑制困难，进而影响PN/A系统的脱氮效能及稳定性。综述了城市污水PN/A工艺中NOB抑制的挑战及对应解决策略，包括曝气控制、基于生物膜及颗粒污泥的污泥龄（SRT）控制、基于游离氨（FA）/游离亚硝酸（FNA）的NOB活性抑制、强化氨氧化菌（AOB）和厌氧氨氧化菌（AnAOB）活性，以及多种抑制策略联合等 ...
任核葶, 刘浩杰
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