pH值对ABR反应器运行稳定性的影响

以人工配制的葡萄糖废水为试验对象,讨论了废水的pH值及其变化对ABR反应器运行稳定性以及处理效能的影响。     

絮凝沉淀-ABR-SBR法处理果汁加工废水

介绍一种果汁加工废水处理工程设计实例。通过采用絮凝沉淀、ABR反应池、SBR池、砂滤的工艺实现了废水的达标排放。实际工程的监测结果表明，对COD、BODs、SS的去除率分别达到98．21％、99．16％、96．15％；水处理运行费用为0．93元／立方米。剩余污泥用板框压滤机处理，避免了二次污染。     

畜禽养殖废水资源化利用研究

针对畜禽养殖场废水的特点,应用以ABR-BAF为主体的废水处理工艺.实际运行结果表明,在进水COD为6 000 mg/L、BOD5为4000 mg/L、SS为1 200 mg/L和NH3-N为400 mg/L的条件下,出水COD为85 mg/L、BOD5,为45 mg/L、SS为15 mg/L、NH3-N为12 mg/L,达到《城市污水再生利用农田灌溉用水水质》(GB 20922-2007)排放标准.     

ATM多播ABR业务拥塞控制的公平准则探讨

本文介绍了在ATM网络中多播ABR（Available Bit Rate）业务的基于ER（Explicit Cell Rate）并采用一种新的公平准则的拥塞控制模式，分析并推导出了在既有单播又有多播、实际情况MCR（Minimum Cell Rate）不为零时缓存长度的递推公式，并说明了网络的稳定性。在这种以平准则下，一个连接的ACR（Allowable Cell Rate）与该连接的PCR（Peak Cell Rate）与MCR的差成比例。而且，分支连接的剩余带宽容量被分配给单播连接，网络资源的利用达到最大化。     

Continuous prophylaxis with recombinant factor IX Fc fusion protein and conventional recombinant factor IX products: comparisons of efficacy and weekly factor consumption

Background: Continuous prophylaxis for patients with hemophilia B requires frequent injections that are burdensome and that may lead to suboptimal adherence and outcomes. Hence, therapies requiring less-frequent injections are needed. In the absence of head-to-head comparisons, this study compared the first extended-half-life-recombinant factor IX (rFIX) product—recombinant factor IX Fc fusion protein (rFIXFc)—with conventional rFIX products based on annualized bleed rates (ABRs) and factor consumption reported in studies of continuous prophylaxis.

Methods: This study compared ABRs and weekly factor consumption rates in clinical studies of continuous prophylaxis treatment with rFIXFc and conventional rFIX products (identified by systematic literature review) in previously-treated adolescents and adults with moderate-to-severe hemophilia B. Meta-analysis was used to pool ABRs reported for conventional rFIX products for comparison. Comparisons of weekly factor consumption were based on the mean, reported or estimated from the mean dose per injection.

Results: Five conventional rFIX studies (injections 1 to >3 times/week) met the criteria for comparison with once-weekly rFIXFc reported by the B-LONG study. The pooled mean ABR for conventional rFIX was slightly higher than but comparable to rFIXFc (difference=0.71; p?=?0.210). Weekly factor consumption was significantly lower with rFIXFc than in conventional rFIX studies (difference in means?=?42.8–74.5?IU/kg/week [93–161%], p?Conclusion: Comparisons of clinical study results suggest weekly injections with rFIXFc result in similar bleeding rates and significantly lower weekly factor consumption compared with more-frequently-injected conventional rFIX products. The real-world effectiveness of rFIXFc may be higher based on results from a model of the impact of simulated differences in adherence.     

ABR厌氧反应＋好氧处理工艺在烟草工业废水处理中的应用

主要对漯河市卷烟厂800 m3/d的烟草工业废水和生活污水采用混凝沉淀＋ABR反应器＋好氧工艺进行处理,经过7个多月的调试与运行,CODCr去除率在90%以上,处理效果稳定,出水水质达到《污水综合排放标准》（GB8978-1996）Ⅰ级标准。     

The Business Risk Audit Approach and Audit Production Efficiency

Essentially, this study asks: Does the business risk audit (BRA) approach increase audit production efficiency? To answer this question empirically, direct and indirect tests are employed using proprietary, working paper data from the larger clients of a major Australian public sector audit provider and an efficiency frontier analytic methodology, data envelopment analysis (DEA). Results based on this proprietary, audit hours data for audit engagements carried out just after BRA approach implementation show that they have high levels of production efficiency and are risk-adjusted, with no significant difference in production efficiency between higher and lower business risk audit engagements. Results based on audit fees data for audit engagements carried out shortly before and after BRA approach implementation show that overall production efficiency significantly improves. Importantly, while this improvement is significant for lower-risk audit engagements, there is no significant improvement for higher-risk audit engagements. In the context of this study's research site, this is consistent with the BRA approach addressing inefficiencies created when lower-risk audit engagements are being over-audited. That is, the BRA approach can result in both risk-adjusted and more efficiently produced audits. With the re-emergence of the BRA approach in the literature and in practice, this study provides empirical evidence to support the claim that this audit approach can lead to ‘creating auditing efficiencies’ (Bell et al., 1997, p. 1).