A Business Plan for Patron Saint Children’s Watch

在中国，很多家庭因为失去孩子而变得支离破碎，其中被拐失踪占据了相当大的 比例，儿童安全问题日益严峻,“幼吾幼以及人之幼”是我们共同的责任；同时，随着老 龄化社会的加速，使得将一生心血哺育了孩子的老人也面临着人生最无助最孱弱的时 期，“老吾老以及人之老”是我们共同的义务。家庭安全需要全社会来维护，关爱孩子， 关心老人，保证他们的安全，是我们的责任，也是和谐社会的要求。在全国城镇化建 设步伐加快，二胎政策落地及老龄化社会加速的大环境下，本文从关爱孩子，关注家 庭完整性出发，为解决3-12岁的小孩容易走失或被拐的实际问题，克服市场上现有 的相应产品之注重娱乐功能的缺点，依据调查研究的数...In China, many families have become fragmented because of the loss of their child, The abducted missing occupy a considerable proportion, children's safety problem is increasingly severe, “expend the love of the young ones in one’s family to that of other families” is our shared responsibility; at the same time, with the acceleration of the aging society, the elderly are also facing the most h...学位：工商管理硕士院系专业：管理学院_工商管理硕士(工商管理硕士)学号：1792011115106

对流扩散方程三角形有限元解的一致估计

利用三角形线性元的积分恒等式,给出了二维非定常对流扩散方程的半离散有限元解和真解的一致最优误差估计,即误差与ε无关,而仅与右端f和初值u_0有关

Effect of Flue-gas Cleaning Devices on Mercury Emission From Coal-fired Boiler

为研究燃煤锅炉烟气净化设施对汞排放特性的影响,采用Ontario-Hydro方法,对设有催化脱硝、静电除尘、海水脱硫的300MW燃煤锅炉排放烟气中汞的含量与形态进行分析,同时测定锅炉的煤、底渣、飞灰等固体样品以及脱硫塔前后、曝气之后海水样品中的汞含量。实验结果为:烟气中的气态汞占总汞的79.1%以上,脱硝催化剂对汞的价态具有强烈的转化作用,烟气中83.4%的气态Hg0被氧化成气态Hg2+;静电除尘对颗粒态汞的去除率几乎达到100%;在脱硫塔中,海水对烟气中汞的洗脱率高达73.6%,曝气后排放前的海水中含汞量是新鲜海水的5.5倍。研究表明锅炉烟气净化设施对汞的排放特性有着重要的影响。In order to study the effect of flue-gas cleaning devices on mercury emission from coal-fired boiler, Ontario-Hydro method had been applied to determine the mercury concentration and speciation in the flue-gas emitted from a 300MW coal-fired boiler, which was equipped with various pollution control devices, including selective catalyst reduction (SCR) De-NOx system, electrostatic precipitator (ESP), and flue-gas seawater De-SO2 system (FGD). Mercury concentration in raw coal, bottom ash and fly ash of the boiler, seawater at the inlet and outlet of SO2 absorption reactor and the drainage of aeration sink, were also analyzed. The results indicate that the percentage of gaseous mercury in total mercury discharged is more than 79.1%. De-NOx catalyst strongly affects the mercury speciation transformation, showing a conversion rate of 83.4% for Hg0 to Hg2+. The removal efficiency of particulate mercury by ESP is close to 100%. With seawater FGD, the removal efficiency of mercury is as high as 73.6%. The mercury concentration in the seawater of drainage from aeration sink is 5.5 times higher than that in fresh seawater. The study shows that the flue-gas cleaning devices in coal-fired power plant play an important role on mercury emission characterization

幼龄华南虎的人工饲养

华南虎幼崽为晚成哺乳动物,刚出生时双眼未睁、不能独立取食和排便,需要人工辅助其学习和完成。初生仔兽的喂饲以少量多食为佳,前3 d以7～8次较为适宜,喂奶量由少增多。饲喂幼虎时人工奶的初始浓度以1:8较适合。幼兽需要用纱布蘸水轻擦仔兽的肛周,以刺激其排便。在8周龄左右为幼虎添加肉浆,1个月后将肉浆替换为肉条。肉类食物的添加时间为观察到幼虎牙齿长出,此时喂奶量可以随着肉量的增加而逐渐减少,直至完全断奶。饲料转换过程中,动物对人工奶的取食量逐渐下降,并且在1周内会出现身体不适,体重增长减缓,一般持续5～7 d即恢复正常。动物对肉条适应以后,而对人工奶的需求量急剧下降,此时可以增加骨头以锻炼幼兽的啃食能力,此时幼兽的体重迅速上升

Recovering Zinc Acetate from Waste Vinyl Acetate Catalyst in Order to Prepare Non - toxic Zinc Phosphate

提出用微波-超声波联用技术对废触媒进行脱附处理的方法,同时回收活性炭和醋酸锌,利用醋酸锌制备磷酸锌。广西民族学院大学生挑战杯科技项

Research progress on perceived risk of patients with rheumatoid arthritis (类风湿性关节炎患者发病风险感知的研究进展)

Rheumatoid arthritis is an autoimmune disease, and current strategies in the treatment of rheumatoid arthritis (RA) should focus on early identification and diagnosis. Higher perceived risk can increase an individual’s adherence to preventive measures. This article summarized the research status, influencing factors, assessment tools and interventions on perceived risk of patients with rheumatoid arthritis, and provided reference for risk assessment of rheumatoid arthritis, identification of influencing factors and carrying out interventional studies. (类风湿性关节炎是一种全身性炎症性疾病, 治疗类风湿性关节炎的策略应注重于早期识别和诊断。发病风险感知能促进人们积极参与预防决策并提高对于疾病预防的积极性。本文对类风湿性关节炎患者发病风险感知的发展现状、影响因素、测评工具及其干预方法进行综述, 为今后医护人员评估类风湿性关节炎发病风险水平、识别相关危险因素及开展相关干预性研究提供理论性依据。