脉冲激光沉积TiO<sub>2</sub>薄膜的<italic>I</italic>-<italic>V</italic>和<italic>C</italic>-<italic>V</italic>
نویسندگان
چکیده
منابع مشابه
Investigation of Ion Channel Mechanism of Regulatory - Volume - Decrease
【摘要】 研究背景 细胞在新陈代谢和完成各种生理功能过程中,不断面临着细胞内外渗透活性分子在细胞内外的流动,从而不断产生细胞内外渗 透压的变化,使细胞处于不断变化的渗透梯度中。由于细胞对水的自由通透性,水分会依据渗透梯度通过渗透或水通道流入或流出细胞,从而产生 细胞容积的变化。可见既使在正常生理条件下,细胞的容积也处于不断的变化中,与此相适应,许多细胞进化了自身的细胞容积调节功能,即当细 胞受到非等渗刺激而产生容积增大或缩小时,细胞自身会通过调节机制使变化了的细胞容积向正常体积恢复。细胞的容积调节功能在细胞的免疫应 答、细胞的迁移、细胞的增殖与分化过程中具有十分重要的意义。 细胞的容积调节功能主要包括两种:一种为调节性细胞容积增大(regulatory vol ume increase,RVI),指当细胞受到高渗透压的刺激而皱缩后,细胞能够调节性的使已经皱缩的细胞体积向正常体积恢复;...
متن کاملCharacterization of fat globules and milk fat globule membrane proteins in milk of different yak breeds
The objective of this work was to characterize the fat globule and milk fat globule membrane (MFGM) proteins in Maiwa (n = 6), Gannan (n = 4) and Zhongdian yak whole milks (n = 4). Fat globule size distribution and specific fat surface area of whole yak milk were determined using a laser diffraction particle size analyzer. The average specific fat surface area of Gannan yak milk (2.05 m·mg) and...
متن کاملContinuous raw skim milk processing by pulsed electric field at non-lethal temperature: effect on microbial inactivation and functional properties
Pulsed electric field (PEF) is an emerging non-thermal processing technology used to inactivate microorganisms in liquid foods such as milk. The objective of this research was to study the effectiveness of continuous PEF equipment (square wave pulses) on total microorganisms of raw skim milk and on Salmonella enteritidis inactivation under moderate temperatures (T < 50 °C). Processing parameter...
متن کاملContinuous processing of skim milk by a combination of pulsed electric fields and conventional heat treatments: does a synergetic effect on microbial inactivation exist?
The objective of this research was to evaluate the effect of the combination of PEF with conventional heat treatment on the microbial inactivation of Salmonella enteritidis in skim milk. The purpose was to identify possible synergies that would make it possible to design minimal treatment regimes. Heat-resistance parameters (Dθ and z) were firstly determined using a temperaturecontrolled water ...
متن کامل[Progress of treatment for bladder cancer].
长期接触芳香胺类物质 ,如染料 、皮革 、橡胶和 油漆等 ,会增加膀胱癌的发病率 2 ] 。 烟草含邻甲苯 胺 、2萘胺和 4氨基联苯芳香胺化合物 ,故吸烟者患 上膀胱癌的机会比非吸烟者高 [ 3 ~ 5 ] 。 人体内色氨酸 的异常代谢可产生一些代谢产物 ,经过肝脏代谢后 排入膀胱 ,具有致癌作用 6 ] 。 血吸虫病患者膀胱癌 的发病率亦较一般人高 [ 7 ] 。 膀胱黏膜局部长期遭受 刺激 ,如长期慢性感染 、膀胱结石及尿路梗阻 ,可能 是诱发癌变的因素 8 ] 。 流行病学研究显示 ,膀胱癌 患者直系亲属有较高的患病风险 [ 9 ] 。 此外 ,已知膀 胱癌存在许多致癌基因或抑癌基因突变 ,如致癌基 因 ras 、HER2/neu 、cmyc 的激活和抑癌基因 p53 或 RB1 的缺失会干扰正常细胞增生 1 0 ~ 1 2 ] ; FGFR3 基因则使生长因子过度活...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Science Bulletin
سال: 1998
ISSN: 0023-074X
DOI: 10.1360/csb1998-43-9-936