多伦多大学LU, Jun博士论文摘要# Biology - 生物学
o*1
1 楼
想给父母寄点钱,通过银行应该要快很多.不知道国内是不是所有银行都可以接受美国的
转账?还是只有少数几家银行可以接受? 还有一般手续费多少? 非常感谢!
转账?还是只有少数几家银行可以接受? 还有一般手续费多少? 非常感谢!
J*n
2 楼
感觉小说文笔有点空，估计模仿了古龙
拍的倒是不错
拍的倒是不错
m*p
3 楼
http://books.google.com/books/about/Surface_Tension_of_Pulmonar
Surface Tension of Pulmonary Surfactant Systems
Pulmonary surfactant facilitates respiration by reducing the surface tension
in the alveoli. To study the surface activity of pulmonary surfactant films
under physiologically relevant conditions, several experimental methods
were developed to measure surfactant film interfacial tension with
Axisymmetric Drop Shape Analysis (ADSA). Using a pendant drop method, the
film formation of a therapeutic pulmonary surfactant, Bovine Lipid Extract
Surfactant (BLES), was studied as a function of surfactant bulk
concentration. It was found that the rate of surfactant film formation is
strongly dependent on its bulk concentration. The addition of dextran, poly
(ethylene glycol) (PEG) and poly (vinyl pyrrolidone) (PVP) in low
concentration BLES significantly increases its rate of film formation. The
effect of these polymeric additives is dependent on both polymer
concentration and molecular weight, and can be explained by the depletion-
attraction mechanism. For each polymer of a given molecular weight, there is
an optimum concentration at which the effect of the polymer is the most
significant. Inhibition of BLES by bovine serum albumin was investigated. In
the presence of albumin, the surface activity of BLES is significantly
hindered. Albumin competes with BLES during film formation, causing high
film surface tension and reduced film stability. By promoting surfactant
adsorption, the polymeric additives prevent surfactant inhibition by albumin
. Using a captive bubble method, a surfactant film stability study was
performed as functions of compression ratio, compression rate and surfactant
bulk concentration. When the compression ratio is relatively low (i.e. <20%
), the effect of compression rate and bulk concentration is insignificant.
In particular, the surfactant film produces a reversible surface tension
response during film compression and expansion. Film failure and collapse
occur when the compression ratio becomes higher, resulting in surface
tension hysteresis. In this case, a high compression rate and/or low
surfactant concentration further reduces surfactant film stability. By
enhancing surfactant readsorption, the polymeric additives studied in the
film formation experiments also improve surfactant film stability. The
findings on the effect of polymeric additives may pave the way for cheaper
and more efficient pulmonary surfactant preparations used in surfactant
replacement therapy.
Surface Tension of Pulmonary Surfactant Systems
Pulmonary surfactant facilitates respiration by reducing the surface tension
in the alveoli. To study the surface activity of pulmonary surfactant films
under physiologically relevant conditions, several experimental methods
were developed to measure surfactant film interfacial tension with
Axisymmetric Drop Shape Analysis (ADSA). Using a pendant drop method, the
film formation of a therapeutic pulmonary surfactant, Bovine Lipid Extract
Surfactant (BLES), was studied as a function of surfactant bulk
concentration. It was found that the rate of surfactant film formation is
strongly dependent on its bulk concentration. The addition of dextran, poly
(ethylene glycol) (PEG) and poly (vinyl pyrrolidone) (PVP) in low
concentration BLES significantly increases its rate of film formation. The
effect of these polymeric additives is dependent on both polymer
concentration and molecular weight, and can be explained by the depletion-
attraction mechanism. For each polymer of a given molecular weight, there is
an optimum concentration at which the effect of the polymer is the most
significant. Inhibition of BLES by bovine serum albumin was investigated. In
the presence of albumin, the surface activity of BLES is significantly
hindered. Albumin competes with BLES during film formation, causing high
film surface tension and reduced film stability. By promoting surfactant
adsorption, the polymeric additives prevent surfactant inhibition by albumin
. Using a captive bubble method, a surfactant film stability study was
performed as functions of compression ratio, compression rate and surfactant
bulk concentration. When the compression ratio is relatively low (i.e. <20%
), the effect of compression rate and bulk concentration is insignificant.
In particular, the surfactant film produces a reversible surface tension
response during film compression and expansion. Film failure and collapse
occur when the compression ratio becomes higher, resulting in surface
tension hysteresis. In this case, a high compression rate and/or low
surfactant concentration further reduces surfactant film stability. By
enhancing surfactant readsorption, the polymeric additives studied in the
film formation experiments also improve surfactant film stability. The
findings on the effect of polymeric additives may pave the way for cheaper
and more efficient pulmonary surfactant preparations used in surfactant
replacement therapy.
o*1
4 楼
想给父母寄点钱,通过银行应该要快很多.不知道国内是不是所有银行都可以接受美国的
转账?还是只有少数几家银行可以接受? 还有一般手续费多少? 非常感谢!
转账?还是只有少数几家银行可以接受? 还有一般手续费多少? 非常感谢!
m*p
5 楼
以他这个背景，转“
RNA干扰
肿瘤早期诊断
干细胞调控机理
基因药物与载体开发
新型医用高分子与缓释材料”
大家觉得他是不是天才？！
RNA干扰
肿瘤早期诊断
干细胞调控机理
基因药物与载体开发
新型医用高分子与缓释材料”
大家觉得他是不是天才？！
n*k
6 楼
co-ask
c*m
7 楼
This is a Mechanical Engineering Paper.
tension
films
【在 m**p 的大作中提到】
: http://books.google.com/books/about/Surface_Tension_of_Pulmonar
: Surface Tension of Pulmonary Surfactant Systems
: Pulmonary surfactant facilitates respiration by reducing the surface tension
: in the alveoli. To study the surface activity of pulmonary surfactant films
: under physiologically relevant conditions, several experimental methods
: were developed to measure surfactant film interfacial tension with
: Axisymmetric Drop Shape Analysis (ADSA). Using a pendant drop method, the
: film formation of a therapeutic pulmonary surfactant, Bovine Lipid Extract
: Surfactant (BLES), was studied as a function of surfactant bulk
: concentration. It was found that the rate of surfactant film formation is
tension
films
【在 m**p 的大作中提到】
: http://books.google.com/books/about/Surface_Tension_of_Pulmonar
: Surface Tension of Pulmonary Surfactant Systems
: Pulmonary surfactant facilitates respiration by reducing the surface tension
: in the alveoli. To study the surface activity of pulmonary surfactant films
: under physiologically relevant conditions, several experimental methods
: were developed to measure surfactant film interfacial tension with
: Axisymmetric Drop Shape Analysis (ADSA). Using a pendant drop method, the
: film formation of a therapeutic pulmonary surfactant, Bovine Lipid Extract
: Surfactant (BLES), was studied as a function of surfactant bulk
: concentration. It was found that the rate of surfactant film formation is
s*g
8 楼
至少稍微大点的银行应该都可以
直接去你开户的银行问 不是最简单准确么？
直接去你开户的银行问 不是最简单准确么？
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