微/纳米ZnO绒球的制备及对混合污水的光降解

以自制的谷氨酸-氟硼酸(GluBF4)离子液体水溶液为反应介质,以物质的量比为1∶6的二水合醋酸锌[Zn(Ac)2·2H2O]和NaOH为原料,室温(25℃,20min)制备前驱体,再微波辅助加热(80℃,10min)制备了纳米氧化锌粉体,获得了纳米结构微米尺寸ZnO绒球。利用场发射扫描电子显微镜(FESEM)、X射线衍射(XRD)、比表面积(BET)、能谱(EDS)等对产物进行了表征。结果表明,所得产物为六方晶系纤锌矿结构,粉体粒径20.4nm,绒球比表面积为27.6m2/g。该纳米材料具有较高的光催化降解有机污染物活性。以紫外光为光源,50 mg微/纳米ZnO绒球为光降解催化剂,取500mL北京雪莲羊绒股份有限公司排污口混合印染污水进行光降解实验,在30min内光降解效率达到了100%,催化剂可回收重复利用,并对光降解机理进行了初步分析。     

油气储运科技创新成果收益递进分成评估

油气储运业务的快速发展对科技创新提出更高要求,科学量化科技创新成果转化应用后取得的经济效益,成为激励创新、驱动发展的主要瓶颈与重大命题。借鉴要素分配、分享经济和收益分成理论,立足于油气储运科技创新成果价值贡献与创效方式、技术基本结构级序,建立科技创新成果收益递进分成评估方法。研究表明：（1）油气科技创新成果转化应用取得的总体经济效益是资本、劳动、技术和管理等生产要素协同作用的结果;（2）油气储运科技创新成果的收益分成率是核心参数,由技术要素分成基准值、技术要素收益递进分成基数、技术创新强度系数等关键参数确定;（3）三级技术要素递进分成基数是实现收益递进分成的关键工具;（4）单项技术的分成比例与技术自身创新创效能力、技术阶段等密切相关。实证表明,该方法可有效解决从总体到单一油气储运技术要素经济价值量化问题,为促进油气储运科技创新发展提供支持。     

EFFECTS OF NUCLEATION AGENTS ON EFFICIENCY OF BORON EXTRACTION FROM MgO－B_2O_3－SiO_2 SLAGS

ＥＦＦＥＣＴＳＯＦＮＵＣＬＥＡＴＩＯＮＡＧＥＮＴＳＯＮＥＦＦＩＣＩＥＮＣＹＯＦＢＯＲＯＮＥＸＴＲＡＣＴＩＯＮＦＲＯＭＭｇＯ－Ｂ_２Ｏ_３－ＳｉＯ_２ＳＬＡＧＳ￥Ｚｈａｎｇ，Ｐｅｉｘｉｎ；Ｌｏｕ，Ｈａｉｌｉｎｇ；Ｓｕｉ，Ｚｈｉｔｏｎｇ（Ｄｅｐａｒｔｍｅｎ?..     

The effect of plasma spraying power on the structure and mechanical properties of hydroxyapatite deposited onto carbon/carbon composites

This paper deals with the effect of plasma spraying power on hydroxyapatite (HA) coatings on carbon/carbon composites (C/C composites). The microstructure and phase composition of the as-sprayed coatings have been examined by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The shear strength of the HA coatings–C/C substrates was detected on a RGD-5 tensile testing machine. Results indicate that the melting extent and the shear strength of the coatings were evidently improved with the increasing of spraying power. Moreover, the amount of decomposed phases is increased and the content of crystalline HA of coatings was slightly changed. Observation of fracture surfaces shows that carbon fiber bundles can bond well with HA coatings using 40 kW spraying power.     

高精度冷轧不锈钢管生产

介绍了用ＬＤ型冷轧管机生产高精度冷轧不锈钢管的经验和质量保证措施。     

拉力芯棒在二辊斜轧延伸中的应用

介绍了在二辊斜轧延伸中采用拉力芯棒轧制的新工艺。探讨了拉力芯棒轧制与固定芯棒轧制、浮动芯棒轧制和限动芯棒轧制相比所显示的优越性。实践表明，采用拉力芯棒轧制方式，可以轧制薄壁管，提高产品尺寸精度和内表面质量。     

基于CPLD的ГОСТ18977总线发送卡设计

针对某型俄制机载产品的测试需求,提出了一种ГОСТ18977总线发送卡的设计方法;介绍了ГОСТ18977总线标准和80C196KB单片机、EPM7128LC可编程逻辑器件的使用方法,并利用外围电路和上述芯片设计并实现ГОСТ18977总线发送卡,介绍了并口EPP模式下ГОСТ18977总线数据的控制过程,给出了ГОСТ18977总线发送卡的部分设计电路,并阐述了它的设计原理;实践验证了该板卡能够完成ГОСТ18977总线数据信息格式转换和传输,完全可以满足对某型俄制机载产品性能检测的要求。     

Dynamic Multiple-Fault Diagnosis With Imperfect Tests

In this paper, we consider a model for the dynamic multiple-fault diagnosis (DMFD) problem arising in online monitoring of complex systems and present a solution. This problem involves real-time inference of the most likely set of faults and their time-evolution based on blocks of unreliable test outcomes over time. In the DMFD problem, there is a finite set of mutually independent fault states, and a finite set of sensors (tests) is used to monitor their status. We model the dependence of test outcomes on the fault states via the traditional D-matrix (fault dictionary). The tests are imperfect in the sense that they can have missed detections, false alarms, or may be available asynchronously. Based on the imperfect observations over time, the problem is to identify the most likely evolution of fault states over time. The DMFD problem is an intractable NP-hard combinatorial optimization problem. Consequently, we decompose the DMFD problem into a series of decoupled subproblems, one for each sample epoch. For a single-epoch MFD, we develop a fast and high-quality deterministic simulated annealing method. Based on the sequential inferences, a local search-and-update scheme is applied to further improve the solution. Finally, we discuss how the method can be extended to dependent faults.     

基于CPLD的ГOCT18977总线发送卡设计

针对某型俄制机载产品的测试需求,提出了一种ГOCT18977总线发送卡的设计方法介绍了ГOCT18977总线标准和80C196KB单片机、EPM7128LC可编程逻辑器件的使用方法,并利用外围电路和上述芯片设计并实现ГOCT18977总线发送卡,介绍了并口EPP模式下ГOCT18977总线数据的控制过程,给出了ГOCT18977总线发送卡的部分设计电路,并阐述了它的设计原理;实践验证了该板卡能够完成ГOCT18977总线数据信息格式转换和传输,完全可以满足对某型俄制机载产品性能检测的要求.