多层In0.55Al0.45As/Al0.5Ga0.5As量子点 的变温光致发光研究

测量了自组织多层In     

1.5 7μm非临界相位匹配KTP参量振荡器

利用1.064μm激光泵浦非临界相位匹配(NCPM)KTP-OPO,获得了重复频率20Hz、输出能量115mJ的1.57μm激光输出.     

A Multifunctional and Fast-Response Lysosome-Targetable Fluorescent Probe for Monitoring pH and Isoxaflutole

A new chemosensor, namely N-(2-morpholinoethyl)acetamide-4-morpholine-1,8-naphthimide (MMN), was designed and synthesized through an amidation reaction. MMN was fabricated as a multifunctional fluorescent probe for monitoring pH and isoxaflutole. MMN exhibited excellent stability in MeCN/H₂O (v/v, 9/1), with an obvious “off–on” fluorescence response toward pH changes due to intramolecular charge transfer (ICT), where the linear response ranges of MMN in the weakly acidic system were from 4.2 to 5.0 and from 5.0 to 6.0 with apparent pK_a = 4.62 ± 0.02 and 5.43 ± 0.02. Based on morpholine as the lysosome targetable unit, MMN could selectively locate lysosomes in live cells. MMN also successfully detected the presence of H⁺ in test papers. Finally, MMN could specifically recognize isoxaflutole at a detection limit of 0.88 μM. A possible sensing mechanism was identified based on density function theory calculations. These results indicate that MMN could be a superior potential chemosensor for detecting pH and isoxaflutole selectively and sensitively and could be used in real sample detection.     

Strength,strain capacity and toughness of five dual-phase pipeline steels

The effect of microstructures on strength, strain capacity and low temperature toughness of a micro-alloyed pipeline steel was elucidated. Five various dual-pha...     

基于WSR视角的PPP项目政府信用评价指标体系构建研究

政府和社会资本合作(PPP)模式在我国基础设施、公共事业等领域得到广泛应用.基于WSR系统方法论,从物理、事理、人理视角出发,利用层次分析法(AHP)和决策与实验室法(DEMATEL)设计、构建一套PPP项目政府信用评价指标体系.研究表明,PPP项目政府信用评价指标体系由物理、事理、人理三大部分组成,共计13个指标,其...     

演绎城市新景观生态走廊闵行七莘路景观绿地的改建与营造设计

1项目背景七莘路位于上海闵行区西北,是连接七宝镇和莘庄镇的交通要道,与莘松高速、318国道、R4地铁相交,沿道路两侧有地铁广场、绿化休闲母亲林等重要节点,道路周边以大型的居住区和商业区为主。闵行区将其规划定位为符合上海国际型大都市要求的城市景观生态走廊,藉此塑造城市新形象,以传承文化、表达现在和展望未来,创造舒适的现代城区环境、宜人的居住环境和浓郁的绿色生态环境。     

Factors Associated with White Fat Browning: New Regulators of Lipid Metabolism

Mammalian adipose tissue can be divided into white and brown adipose tissue based on its colour, location, and cellular structure. Certain conditions, such as sympathetic nerve excitement, can induce the white adipose adipocytes into a new type of adipocytes, known as beige adipocytes. The process, leading to the conversion of white adipocytes into beige adipocytes, is called white fat browning. The dynamic balance between white and beige adipocytes is closely related to the body’s metabolic homeostasis. Studying the signal transduction pathways of the white fat browning might provide novel ideas for the treatment of obesity and alleviation of obesity-related glucose and lipid metabolism disorders. This article aimed to provide an overview of recent advances in understanding white fat browning and the role of BAT in lipid metabolism.     

岩石切削过程中破坏机制的离散元分析

利用离散单元方法(DEM)对两种不同属性的花岗石样本模型进行了切割模拟,通过调整不同的切削参数计算并分析了岩石切削过程中的切削力、切削深度、切削比能及切削力倾角的变化规律,从细观上探讨了临界切深对岩石脆性破坏模式和塑性破坏模式及其转变的影响,指出了当切削深度逐渐增大时,破坏模式依次从塑性破坏模式到过渡破坏模式最后转变为脆性破坏模式,同时切削力倾角并不随切削深度变化。将离散单元法分析的结果与实际实验进行了比较,表明该方法是合理的。