A Novel Preparation of Special-Shaped Phosphors-in-Glass by Gel Casting with Isobam for High-Power WLEDs Lighting

Phosphors-in-glass (PiGs) regarded as a promising phosphor-converter for white light emitting diodes (WLEDs) is being researched widely. However, there are few reports on the effect of changing the shape of PiGs on the color rendering index (CRI) and heat dissipation of WLEDs. In this paper, gel casting with Isobam was first attempted in preparing special-shaped PiGs successfully. It exhibited that 76 wt.% was the optimum solid content based on the rheological properties of slurry and the shrinkage of green bodies. The sintering rate should be kept at a low speed and glass transition temperature (Tg) of glass powders must be higher than sublimation temperatures (Ts) of APS and Isobam. The CRI of PiGs was increased by about 27% after changing the shape of PiGs from cylinder to dome. Most importantly, operating temperature also reduced effectively the increase of the surface area of PiGs. Therefore, changing the shape of PiGs by gel casting with Isobam is a creative way for high-power WLEDs lighting.     

针刺胃经穴治疗胃肠实热型肥胖症的临床研究

目的探讨胃经穴在胃肠实热型肥胖症治疗中的作用。方法将51例胃肠实热型肥胖症患者随机分为两组,治疗组以胃经取穴为主,对照组采用俞募配穴法取穴。隔日治疗1次,1个月为1个疗程,共治疗3个疗程。观察患者的症状、体征的变化,测量治疗前后的肥胖指标及血瘦素、血脂、血糖、ACHE等实验室指标。结果与对照组相比,胃经组可显著减少各项肥胖指标(P<0.01);改善肥胖患者的高瘦素血症(P<0.05)和脂代谢紊乱(P<0.05);逆转肥胖患者的副交感神经功能亢进的失衡状态(P<0.05)。结论胃经穴位可以作用于肥胖发生和发展的多个环节,是治疗胃肠实热型肥胖症的关键而有效的选穴。     

鼻咽癌治疗后颈淋巴结残留或复发的彩色多普勒信号特征

目的 探讨彩色多普勒检查时鼻咽癌治疗后颈淋巴结残留或复发的多普勒信号特征.方法 51枚颈转移淋巴结经术后病理确诊鼻咽痛治疗后颈淋巴结残留或复发(共计12例患者),24枚淋巴结为反应性增生良性淋巴结(共计6例患者),手术前行彩色多普勒检查.结果 鼻咽痛治疗后颈淋巴结残留或复发的淋巴结发生部位在Ⅱ.Ⅳ区.短轴直径＞10 m...     

Phase Transformation after Heat Treatment of Cr-Ni Stainless Steel Powder for 3D Printing

Today, Ni-Cr steel is used for advanced applications in the high-temperature and electrical industries, medical equipment, food industry, agriculture and is applied in food and beverage packaging and kitchenware, automotive or mesh. A study of input steel powder from various stages of the recycling process intended for 3D printing was conducted. In addition to the precise evaluation of the morphology, particle size and composition of the powders used for laser 3D printing, special testing and evaluation of the heat-treated powders were carried out. Heat treatment up to 950 °C in an air atmosphere revealed the properties of powders that can appear during laser sintering. The powders in the oxidizing atmosphere change the phase composition and the original FeNiCr stainless steel changes to a two-phase system of Fe₃Ni and Cr₂O₃, as evaluated by X-ray diffraction analysis. Observation of the morphology showed the separation of the oxidic phase in the sense of a brittle shell. The inner part of the powder particle is a porous compact core. The particle size is generally reduced due to the peeling of the oxide shell. This effect can be critical to 3D printing processing, causing defects on the printed parts, as well as reducing the usability of the precursor powder and can also change the properties of the printed part.     

PGK1-coupled HSP90 stabilizes GSK3β expression to regulate the stemness of breast cancer stem cells

Objective: Glycogen synthase kinase-3β(GSK3β) has been recognized as a suppressor of Wnt/β-catenin signaling, which is critical for the stemness maintenance of breast cancer stem cells. However, the regulatory mechanisms of GSK3β protein expression remain elusive.Methods: Co-immunoprecipitation and mass spectral assays were performed to identify molecules binding to GSK3β, and to characterize the interactions of GSK3β, heat shock protein 90(Hsp90), and co-chaperones. The role of PGK1 in Hsp90 ch...     

养阴清热 补肾化瘀中药联合CTX治疗狼疮性肾炎的临床研究

目的:观察养阴清热,补肾化瘀法联合环磷酰胺(CTX)治疗狼疮性肾炎的疗效。方法:采用随机、平行、对照比较方法,分中医组、中西医组两组,均为上海市中医医院风湿科门诊和住院病人。每组各30例,共60例,疗程6个月,对蛋白尿及免疫指标进行观察。结果:(1)总有效率分别为中医组96.7%,中西医组93.33%。(2)两组在治疗蛋白尿方面均有疗效(P0.05,P0.01)。(3)中西医结合、中医治疗均能降低血沉(P0.01,P0.05)。(4)中西医结合治疗及中医治疗均能降低dsDNA(P0.05)。中西医结合治疗能升高C4(P0.05)。结论:滋阴清热、补肾化瘀中药联合CTX能改善蛋白尿、调节免疫的作用,减少激素用量。     

清热化瘀法治疗多囊肾发热浅析

认为多囊肾在合并感染或出血情况下的高热不退,其病机特点是邪热与瘀血相结合,可采用温病清热化瘀法进行治疗.运用该法的关键是以准确辨证为前提,并根据病程之久暂、血瘀之轻重灵活变化,施治得法,则可收明显疗效.     

艾滋病阴虚内热证的生物学相关性研究

目的：探讨运用生物学理论研究艾滋病（AIDS）阴虚内热证的实质。方法：通过文献的整理、归纳、总结、分析,探讨AIDS阴虚内热证的生物学相关性。结果：AIDS阴虚内热证有明显的生物学相关性。结论：中医证侯的生物学相关性研究能够为中医药现代化、标准化研究提供科学依据     

《伤寒论》176条＂表有热,里有寒＂析义

《伤寒论》176条是伤寒论中争议较大的条文之一.后世关于此条众说纷纭,傅元谋教授独辟蹊径揭示出176条＂表＂实为阳明,＂里＂实为太阴,很好的解释了此条文的意义.     

温肺散寒化痰定喘法治疗小儿寒性哮喘临床研究

目的：探讨温肺散寒化痰定喘法治疗小儿寒性哮喘的临床疗效。方法：将254例小儿患者随机分为两组,治疗组130例,采用温肺散寒化痰定喘法治疗,方用小青龙汤合三子养亲汤（方药组成：麻黄、桂枝、细辛、干姜、半夏、五味子、白芍、白芥子、紫苏子、莱菔子）治疗;对照组124例,采用西药抗生素配合口服氨茶碱、酮替酚及特布他林气雾吸入,均以7d为1个疗程。结果：治疗组有效率89．23％,对照组有效率79．03％,经χ2检验,两组差异有统计学意义（P〈0．05）。结论：温肺散寒化痰定喘法治疗小儿寒性哮喘有良好效果。