PET/PTT复合丝交织针织松紧带研发

通过经纱中涤纶低弹丝和PET/PTT复合丝的不同组合交织,设计了5种PET/PTT复合丝交织针织松紧带,比较了普通针织松紧带和5种PET/PTT复合丝交织针织松紧带水洗前后的宽度、拉伸倍数、弹性回复率等性能,结果显示:经纱全部采用PET/PTT复合丝的交织针织松紧带的尺寸稳定性、抗应力松弛和耐疲劳性能最好。     

基于用电大数据分析的用户终端综合能源服务新模式

受现代新能源发展的影响,传统类型能源市场的商业服务模式发生了深刻改变,提出基于用电大数据分析的用户终端综合能源服务新模式.从国外和国内两个视角入手,分析用户终端的综合能源服务模式现状,了解用户终端综合能源服务模式存在的3个作用:1)转换管理方式提高能源的利用率;2)双控模式减少能源成本造成的压力;3)提高能源资源的集中分配率.基于用电大数据分析能源市场需求,加大经费投入能源技术创新,推进互联网增值服务搭建能源管理平台,完成用户终端综合能源服务模式优化,为传统产业战略转型提供科学依据.     

南泥湖露天矿区采场水力联系及矿坑涌水量预测

为了查明南泥湖露天矿区采场范围内水力联系及矿坑涌水量,分析了含水层类型及其富水性特征,地下水补给、径流、排泄条件,地下水的基本特征等,基于此,采用长期水文监测、示踪试验及水化学分析等方法,研究了大气降水、地表水、地下水及矿坑涌水之间的水力联系及相互转换关系;并分析了露采矿坑的涌水因素以及预测了露采矿坑涌水量,主要包括矿坑大气降水补给量、地表径流量和地下水补给量。研究为后期水文地质监测以及地质灾害防治提供了技术支持。     

瞬变负荷蓄能发电机组设计

针对蓄能发电机组设计中诸如多段轴系回转精度、公共底座振动、机组起动等设计难点问题,通过参照常规设计并利用先进的仿真分析结合试验经验的手段,对蓄能机组进行了优化设计。实际应用表明:所设计的蓄能机组运行可靠,性能良好,可满足瞬变负荷用电需求。     

第二代催化裂化汽油选择性加氢脱硫（RSDS-Ⅱ）技术的中试研究及工业应用

对催化裂化汽油中硫化物及烃类分布进行详细分析,确立第二代催化裂化汽油选择性加氢脱硫（RSDS-Ⅱ）技术的工艺路线。中试试验结果表明,RSDS-Ⅱ技术对多种原料油具有较好的适应性。工业应用标定结果表明,以烯烃体积分数38.7%～43.3%、硫质量分数250～470 g/g的催化裂化汽油为原料,经过RSDS-Ⅱ技术处理后汽油产品硫质量分数小于50 g/g,满足沪Ⅳ/欧Ⅳ排放标准,RON损失0.3～0.6个单位,说明RSDS-Ⅱ技术具有较好的脱硫活性和较高的选择性,完全可以满足炼油厂汽油质量升级的需要。     

水杨酸体系抛光液中钌的化学机械抛光研究

研究了抛光液中H2O2和水杨酸浓度对钌的抛光速率的影响。采用电化学方法和X射线光电子能谱分析了H2O2和水杨酸对金属钌腐蚀效果的影响;采用原子力显微镜观察钌表面的微观形貌。结果表明:水杨酸浓度的增加有利于金属钌表面钝化膜的形成,抛光速率值随之增加;随着H2O2浓度的不断增加,抛光速率不断增加,当H2O2质量分数大于3%时,抛光速率值随浓度的增加而降低。抛光后的金属钌表面平均粗糙度Ra为7.2 nm。     

Effect of Substrate Temperature on CaHPO4 Coating on HT-C/C Composites Prepared by Ultrasonic Induction Heating Method

采用超声感应加热法在H2O2水热处理C/C复合材料表面沉积了CaHPO4涂层,借助SEM、XRD、FTIR、EDS等手段,研究了衬底温度对涂层的微观结构的影响,并通过划痕测试评价涂层与C/C基体之间的结合强度,同时运用分析天平测量质量以研究涂层的沉积动力学。结果显示,所制得的CaHPO4涂层钙磷比为1.2左右,晶格中出现碳离子。涂层形貌无明显变化,但是伴随温度的升高,涂层致密度降低。涂层与基体之间的结合强度随温度升高而增强,但内聚强度随温度升高而减弱。CaHPO4涂层的感应加热沉积过程受表面化学反应控制,沉积活化能为46.7 kJ/mol。     

Low energy ion beam assisted deposition of controllable solid state electrolyte LiPON with increased mechanical properties and ionic conductivity

Lithium phosphorus oxynitride (LiPON) solid state amorphous film electrolytes were synthesized by ion beam assisted deposition (IBAD) using Li₃PO₄ target under nitrogen reactive plasma. IBAD presents an advantage of controllable nitrogen content of the films by adjusting N₂ and Ar flow ratio. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), nanoindenter, and profiler were employed to characterize LiPON films. Our results indicate that the film at N₂ and Ar flow ratio of 1:8 showed the best surface morphology and mechanical properties. The highest N atomic percentage of 2.32% was also obtained at this synthesis circumstance, and the resultant LiPON film electrolyte showed higher ionic conductivity of 4.5 × 10⁻⁶ S/cm at room temperature, as well as the highest hardness of 6.8 GPa and the lowest compressive stress of 147.2 MPa. It is believed that as-prepared LiPON solid state electrolyte film optimized can effectively prevent delamination from electrodes, showing some promising application in thin film lithium ion batteries.     

Separation dynamics of hydrogen isotope gas in mesoporous and microporous adsorbent beds at 77 K: SBA-15 and zeolites 5A,Y, 10X

The separation of a hydrogen isotope mixture on porous materials was studied using equilibrium and breakthrough experiments. The adsorption equilibria of H₂ and D₂ on SBA-15 with mesopores and molecular sieves 5A, Y, and 10X with micropores were measured at 77 K using the volumetric method. The breakthrough experiments of a H₂ and D₂ mixture in each adsorbent bed were carried out at various conditions of flow rate and pressure. The equilibrium ratio of D₂ to H₂ on mesoporous molecular sieves was larger than the ratio on microporous molecular sieves (SBA-15 > 10X > Y > 5A), but the difference among the adsorbents decreased with increases in pressure. On the other hand, the order of breakthrough separation factor showed the opposite result (SBA-15 < 10X < Y < 5A). The breakthrough separation factors for zeolite 10X was approximately equal to the equilibrium ratio of D₂ to H₂ at the corresponding partial pressures, whereas zeolites 5A and Y showed higher breakthrough separation factors than their equilibrium ratios. In SBA-15, the separation factors from breakthrough results were even smaller than the corresponding equilibrium ratio. In the microporous adsorbent with a limited pore size (zeolite 5A in the study), the diffusion mechanism contributed to the separation of hydrogen isotope gases as one of key factors.     

“生活里充满了惊奇!”时尚鞋子品牌Mary Ching设计师的家

第一次见到Mary Ching品牌的时尚高跟鞋,是在博雅珊画廊主人的家庭派对上。优雅的女主人一袭黑色天鹅绒的礼服,配上那双水蛇皮高跟鞋,高贵和性感便不露声色地显现,魅力更是华光四射。就在那个派对上,我认识了Mary Ching的女设计师和创始者,华裔英籍的