摘要：A new severe plastic deformation method for manufacturing tubes made of AZ31 magnesium alloy with a large diameter was developed,which is called the TCESE(tube continuous extrusion−shear−expanding)*** process combines direct extrusion with a two-step shear−expanding *** influences of expanding ratios,extrusion temperatures on the deformation of finite element meshes,strain evolution and flow velocity of tube blanks during the TCESE process were researched based on numerical simulations by using DEFORM-3D *** results show that the maximum expanding ratio is 3.0 in the TCESE *** deformation of finite element meshes of tube blanks is inhomogeneous in the shear−expanding zone,and the equivalent strains increase significantly during the TCESE process of the AZ31 magnesium alloy.A extrusion temperature of 380°C and expanding ratio of 2.0 were selected as the optimized process parameters from the numerical simulation *** average grain size of tubes fabricated by the TCESE process is approximately 10μ*** TCESE process can refine grains of magnesium alloy tubes with the occurrence of dynamic ***(0001)basal texture intensities of the magnesium alloy tube blanks decrease due to continuous plastic deformation during the TCESE *** average hardness of the extruded tubes is approximately HV 75,which is obviously improved.

摘要：液化天然气(LNG)是一种清洁环保能源,需求量在不断增长。船船之间、船岸之间的LNG传输方式渐趋多样,如何选择LNG传输方式成为相关工程项目的关键。用于船岸连接的LNG传输方式一般包括卸料臂和软管传输系统,以船并靠方式为例,从典型构造布局、安全系统、物理参数、工作环境条件、设计规范等方面介绍对比了卸料臂与软管传输系统的异同,探讨了2种传输方式主要优缺点。可为工程项目中LNG传输方式的选择及应用提供参考。

摘要：Thirteen novel phenyl substituted isoxazolecarboxamides were synthesized, and their structures were characterized by IH NMR, elementary analysis and high-resolution mass spectrometry（HRMS） techniques. Their evaluated insecticidal activities against oriental armyworm（Mythimna separata） indicate that the phenyl substituted isoxazolecarboxamides exhibited moderate insecticidal activities, among which compounds 9c and 9k showed com- paratively higher activities.

摘要：高压开关柜因温升问题导致爆燃事故时有发生,散热装置是保证开关柜安全稳定运行的重要措施,但更换散热装置需要大面积停电。基于此,研制了一款可拆卸的高压开关柜散热装置更换模组,整体采用模块化设计,使用可拆卸式结构,并设计了锁扣进行固定,以确保可靠运行。最后,通过搭建模拟平台进行验证,结果表明散热装置可实现不停电更换,更换时间不超过5 min,避免了大面积停电,最重要的是保证了检修人员的人身安全。

摘要：江苏某高新区再生水厂以各企业预处理排放尾水为原水,采用化学沉淀、生化处理和超滤及反渗透膜分离等组合工艺流程,将含磷废水与不含磷废水分质分段处理,系统设计合理,处理效果良好,直接运行成本为6.25元/m^(3),出水水质达到《地面水环境质量标准》GB 3838—2002中Ⅳ类标准要求,并提供给高新区相关企业回用。

摘要：电力系统是国家发展的重要基石,电力信息系统的安全必须得到保障。现有电力信息系统的安全主要基于RSA等加密算法,面临互联网算力提升和量子计算机的威胁。根据电力系统对信息安全的迫切需求,以及量子保密通信技术在信息安全领域中的无条件安全性,探索量子保密通信技术在电力信息系统中的应用。通过对作为互联网信息技术基础的标准SSL协议过程及其安全要素解析,设计了同互联网基础相容的量子安全增强方法——利用预置量子随机数(基于量子随机数发生设备、量子密钥分发网络)进行随机数源强化,在开源OPENSSL VPN平台上进行相应实验验证。实验结果表明,提出的利用量子随机数源进行量子化改造的方案能实现系统安全的根本性改善,同时不显著增加系统复杂度或系统开销,对电力信息系统安全实现增强。

摘要：Porous SiC/Ti-based metallic glass composite (Ti-BMGC), a new kind of composite, has significant application prospectin the field of light armor. To evaluate the dynamic mechanical response of the composite, dynamic Vickers hardness andindentation-induced deformation behavior were investigated by comparison with that under static indentation. The dynamic hardnesswas measured by a modified split Hopkinson pressure bar (SHPB). The dynamic hardness is obviously greater than the statichardness. The brittleness parameter under dynamic indentation is also greater than that under static indentation. Although thedynamic indentation induced more severe deformation behavior than the static indentation, the deformation and fracturecharacteristics in the two loading cases are nearly the same, both exhibiting extensive cracks in the SiC phase and severe plasticdeformation in the metallic glass phase.

摘要：目的探讨听障患者在语言康复过程中情绪调节对康复时间的影响。方法采用随机对照实验设计,选取140名听障患者分为实验组和对照组各70人。实验组在语言康复过程中接受心理干预,对照组进行不含心理干预的语言康复。对比两组患者的言语定义能力、情绪状态、康复时间等指标,分析心理干预的效果。结果实验组的言语定义能力、情绪状态均优于对照组,且康复时间显著缩短(P<0.05)。结论听障患者的情绪调节对语言康复有重要作用,心理干预可有效提高患者的语言能力和情绪状态,缩短康复时间。

摘要：装配整体式齿槽剪力墙结构是一种新型不出筋全预制混凝土剪力墙结构,具有标准化程度高、运输安装便捷、场内工作量少的优点。预制构件间通过密拼接技术实现水平连接,连接接缝内钢筋的布置限制了齿槽剪力墙的施工效率。基于装配整体式齿槽剪力墙的构造特征,提出了一种钢筋整体推拉连接技术,有效解决了钢筋连接问题,为装配整体式齿槽剪力墙结构的推广应用奠定了基础。

摘要：介绍了中西方兽药广告宣传的各种表现形式,分析了中西方文化差异对兽药广告宣传的影响,提出了我国兽药广告宣传在融合中西方文化的同时,要多学习西方优秀作品的创意,使之相互融合、相互渗透的发展建议,从而推动我国优秀的兽药企业及兽药产品走向世界。