多孔载体生物膜反应器深度处理皮革废水的试验研究

本试验采用自制多孔载体生物膜反应器对某皮革厂经物化、生化处理后的出水进行深度处理。研究结果表明:在水中溶解氧DO为2.0~3.0 mg/L,水力停留时间HRT为8 h,进水COD为176.5~256.6 mg/L、氨氮为39.2~58.9 mg/L、总氮为51.9~76.5 mg/L的条件下,经过本反应器处理之后的出水平均COD为75.8 mg/L,平均氨氮质量浓度为8.8 mg/L,平均总氮质量浓度为22.9 mg/L,出水水质达到《污水综合排放标准》(GB8978-1996)中的一级排放标准。     

MiR-222 Targeted PUMA to Improve Sensitization of UM1 Cells to Cisplatin

microRNAs have been shown to play critical roles in regulating the chemosensitivity of cancer cells. As a member of the oncogenic miRNAs (oncomiRs), miR-222 has been reported to drive the oncogenesis of many types of malignancies. However, little is known concerning the specific role of miR-222 in human oral squamous cell carcinoma (OSCC). The present study explored the role and mechanism of miR-222 in increasing the expression of p53 up-regulated modulator of apoptosis (PUMA) and enhancing the sensitivity of OSCC to cisplatin (CDDP). Results showed that antisense (As)-miR-222 inhibits the expression of miR-222. In contrast, PUMA was dramaticallyup-regulated. IC₅₀ values were significantly decreased in cells treated with As-miR-222 combined with CDDP, to a greater extent than in cells treated with CDDP alone. Furthermore, As-miR-222 enhanced apoptosis and inhibited the invasiveness of UM1 cells. Analysis of the above data suggested that, in UM1 cells, there might be a regulatory loop between miR-222 and PUMA, and that miR-222 inhibition increased the chemosensitivity to CDDP. These findings demonstrated that down-regulation of miR-222 could enhance the chemosensitivity of human OSCC cells to CDDP, and that the combination of As-miR-222 and CDDP could be an effective therapeutic strategy by boosting the expression of PUMA for controlling the growth of OSCC.     

U型结构PP/PET混合堆积消声棉的研究

PP/PET混合纤维是优秀的吸音纤维。本研究通过改变纤维堆积方法,无需使用胶粘剂,构筑成U型结构的PP/PET混合堆积纤维,用作消声棉,比普通片型结构的混合堆积消声棉具有更好的吸音效果。     

新型织物涂料印花粘合剂的研制

研究了织物涂料印花粘合剂中单体,乳化剂,引发剂及单体加料方式及产品性能的影响。     

喷胶棉粘合剂的研制

研究了喷胶棉粘合剂中单体,交联剂,乳化剂,引发剂及聚合反应温度对产品性能的影响。     

醋丙共聚压敏胶乳液的开发研究

本文研究了丙烯酸和预矛单体乳化液对醋丙共聚乳液粘度的影响，通过降低反应温度解决了扩大生产中的传热问题。     

丁果水乳剂防除花生地杂草试验

丁果水乳剂是由丁草胺与果尔（即乙氧氟草醚）混配而成的一种新剂型。试验结果表明，防除花生地杂草，每６６６．７ｍ＾３用有效药量４５￣６０克兑水约５０公斤，于花生播后芽前均匀喷施，防效达９０％以上，持效期长达４０￣６０天，从而显著地提高了花生荚果的产量。     

线性聚能切割器的应用研究

为精确控制岩石定向断裂爆破中断裂面的发展,根据爆炸力学、岩石断裂力学理论,对线性聚能切割器应用于岩石定向断裂爆破时裂纹的产生及扩展进行了研究,同时对线性聚能切割器进行了设计,并在实验室进行了验证试验。结果表明由聚能射流形成的切缝有明显的定向作用,使爆生气体的能量沿预定方向集中,裂纹的定向断裂控制效果良好。利用自行设计的线性聚能切割器,在大理石采石场进行了现场试验,结果表明定向断裂爆破效果显著,岩石断裂面平整,凹凸量不超过55 mm,眼痕率高达100%。     

多点聚能切割爆破新技术

针对当前光面爆破和定向断裂控制爆破存在的问题,以及高强度岩体复杂断面成型爆破的工程现状,提出了多点聚能切割爆破技术,对其特点、聚能爆破机理等作了详细介绍;并将该技术应用于大理石断裂控制爆破,收到了良好的爆破效果。该技术的开发与应用,为岩石断裂控制爆破、高强度岩体复杂断面成型爆破提供了一条高效低耗途径,有广阔的应用前景。     

乳化炸药爆炸合成锂锰氧化物的实验研究

正极材料在锂离子电池成本中约占40%以上,锰酸锂被认为是目前最具发展前景的锂离子电池的正极材料。本文尝试以硝酸锂和硝酸锰作为氧化剂制备乳化炸药,通过乳化炸药爆炸合成锂锰氧化物,爆炸产物(锂锰氧化物)用X射线衍射(XRD)和TEM(透射电子显微镜)测试分析后得到验证。