检索结果-南通市图书馆

Soft 2013年第1期2卷 1-6页

作者： Stig e. Friberg Ugelstad Laboratory Norwegian University of Science and Technology Trondheim Norway

The separation of phases after the stability composition at a plait point is exceeded has significant effect on the reactions during spontaneous emulsification, but experimental efforts to obtain accurate information are extremely difficult, because even the smallest scattering of the numbers has a large effect on the result. In the present contribution a model system was applied that closely mirrored experimental values and the mass ratio of the two phases could be calculated with high accuracy. extrapolation of the ratio between phase masses towards the critical composition showed the two phase masses each close to 0.5, while a composition with a miniscule difference from this composition extrapolated to 1.0. The results showed spontaneous emulsification between solutions at the plait point and water to consist of two processes;an initial extremely fast reaction and a slower process between the aqueous phase formed in the primary emulsification and water.

关键词： emulsions Spontaneous emulsification Phase Diagrams Plait Point

Solasodine Glycosides: A Topical Therapy for Actinic Keratosis. A Single-Blind, Randomized, Placebo-Controlled, Parallel Group Study with Curaderm<sup>BeC5</sup>

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Cancer Therapy 2013年第2期4卷 588-596页

作者： Bill e. Cham Australasian Institute of Medical Research Brisbane Australia.

Background: Untreated actinic keratosis can advance to squamous cell carcinoma, which in turn is associated with a risk of metastasis. Current treatments for actinic keratosis have many shortcomings. This communication describes the efficacy and safety of a topical cream therapy, CuradermBeC5, containing solasodine glycosides (0.005%) for actinic ***: Randomly assigned patients with actinic keratosis on the face, trunk or extremities received so-lasodine glycosides cream (CuradermBeC5) or placebo (vehicle) that was self-applied to the lesions and covered with an occlusive dressing (micropore) twice daily for 3 consecutive days. Complete clearance and local reactions were as-sessed at 56 days with follow-up periods of 6 months and 1 year. Results: The rate of complete clearance at day 56 was higher with solasodine glycosides than with placebo (92% vs. 38%, P 0.001). The absolute success rates after 1 year follow-up were 82% for solasodine glycosides and 18% for placebo. No differences in local reactions were obtained when solasodine glycosides and placebo were compared. Local reactions in both groups peaked at days 2 and 3 with local pain as the major event. The pain associated with treatments lasted approximately 10 minutes after application of solasodine glycosides and placebo. Complete reepithelialization occurred two weeks after treatment. Adverse events were generally mild to moderate in intensity and resolved without sequelae. Conclusions: Solasodine glycosides cream applied topically twice daily with a dressing for 3 days is effective for the treatment of actinic keratoses.

关键词： Solasodine Glycosides Solamargine Solasonine Actinic Keratosis Apoptosis Skin Cancer Clinical Trial CuradermBeC5

Correlates of Depression among Patients Diagnosed with Chronic Illnesses in Saudi Arabia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2014年第15期6卷 1895-1902页

作者： Ahmad e. Aboshaiqah College of Nursing King Saud University Riyadh KSA

Background: Depression contributes to an increased medical morbidity and mortality among patients with chronic medical illnesses. The purpose of this study was to investigate correlates of depression among patients diagnosed with chronic illnesses in Saudi Arabia. Methods: A cross sectional survey using 412 patients diagnosed with chronic illnesses has been used to collected data in regards to depressive symptoms, psychological distress, coping, and life satisfaction. Results: 25.2% of the patients reported that they had moderate to severe depressive symptoms, and about 13.8% of them had mild level of depression. Psychological distress and life satisfaction were significant correlates with depressive symptoms (r = 0.33, 0.54, p e coping strategies is not. The results also showed that there is a significant and negative correlation between patients’ age and depression score (r = 0.17, p ≤ 0.001). Regarding gender differences, the analysis showed that there was no significant difference between male and female patients in their depressive symptoms (t = ﹣0.69, p = 0.488). Conclusion: implication for clinical practice and research discussed.

关键词： Chronic Illness Depression Stress Life Satisfaction

Continuity of Higher Order Commutators on Certain Hardy Spaces

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,english Series 2002年第2期18卷 391-404页

作者： DING Yong LU Shan Zhen Department of Mathematics,Beijing Normal University,Beijing 100875.P.R.China e-mail:dingy@*** lusz@***ZHANG Pu Department of Mathematics.Zhejiang University(at Xixi Campus).Hangzhou 310028,P.R.China,e-mail:zhpjj@263,net Department of Mathematics Beijing Normal University Beijing P.R. China Department of Mathematics Zhejiang University (at Xixi Campus) Hangzhou P.R. China

In this *** authors study the continuity properties of higher order commutators generated by the homogeneous fractional integral and BMO functions on certain Hardy spaces,weak Hardy spaces and Herz-type Hardy spaces.

关键词： Fractional integral Homogeneous kernel L^r-Dini condition Hardy space Herz-type Hardy space

维普期刊数据库

CHINeSe HeROINeS OF THe SCReeN

在线全文

学校读者我要写书评

暂无评论

中国周刊 2005年第Z1期 32-34+36页

作者： Deng Xiao’e

Legend and history alike have held women accountable for the problems of men, from Helen of Troy, to Joan of Arc, and more recently, an infamous intern that brought a US president to his knees - almost. Chinese women have also shared similar tales of woe - their stunning looks did not prevent the country’s traditional ’four beauties’, Xi Shi, Diao Chan, Yang Yuhuan and Wang Zhaojun from meeting a tragic end.

关键词： CHINeSe HeROINeS OF THe SCReeN

The Murmur of Dynamic Subortic Stenosis Recognition Through A Novel Graphic Display

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2012年第5期3卷 419-425页

作者： Morton e. Tavel St. Vincent Hospital Indiana University School of Medicine Indianapolis USA

Background: Dynamic subaortic stenosis occurs in differing situations, commonly with hypertrophic cardiomyopathy. Regardless of the underlying cause, the resulting murmurs usually possess a characteristic sound spectral pattern, manifesting a sharp and high frequency peak occurring late in systole, often bearing a striking resemblance to the subaortic Doppler flow pattern. Methods: Murmurs found in thirty one subjects with dynamic subaortic stenosis were analyzed after having been recorded with a novel portable device capable of spectral and waveform sound displays. Results: All subjects manifested characteristic frequency patterns, consisting of high and sharp peaks occurring in late systole. With significant subaortic stenosis (resting subaortic flow velocity > 2 m/sec) this pattern was evident at rest. In the presence of little or no resting subaortic obstruction (ec) this pattern was produced regularly by the Valsalva maneuver. Conclusions: Dynamic subaortic stenosis produces a specific sound spectral pattern that may provide a basis for clinical evaluation, especially in early detection of this disorder and in screening situations.

关键词： Hypertrophic Cardiomyopathy Cardiac Physical Diagnosis Subaortic Stenosis Heart Murmurs Computer Analysis of Heart Sounds

Lookup Table Optimization for Sensor Linearization in Small embedded Systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sensor Technology 2012年第4期2卷 177-184页

作者： Lars e. Bengtsson Physics Department University of Gothenburg Gothenburg Sweden

This paper treats the problem of designing an optimal size for a lookup table used for sensor linearization. In small embedded systems the lookup table must be reduced to a minimum in order to reduce the memory footprint and intermediate table values are estimated by linear interpolation. Since interpolation introduces an estimation uncertainty that increases with the sparseness of the lookup table there is a trade-off between lookup table size and estimation precision. This work will present a theory for finding the minimum allowed size of a lookup table that does not affect the overall precision, i.e. the overall precision is determined by the lookup table entries’ precision, not by the interpolation error.

关键词： Lookup Table Sensor Linearization embedded Systems Interpolation

大环多胺配体BDBPH的设计合成及其晶体结构

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

高等学校化学学报 2001年第3期22卷 417-420页

作者：上官国强 MartellA.e ZhangZ.R Reibenspies J 济宁医学院基础部济宁272013 美国TexasA&M大学化学系

用 Pb( SN) 2 作模板 ,2 ,6-二甲酰基对甲苯酚与二亚乙基三胺通过 [2 +2 ]缩合反应 ,经 Na BH4 还原、脱 Pb2 +、酸化等操作 ,得晶体 BDBPH· 6HBr· 4 H2 O.晶体属单斜晶系 ,P2 1/ c空间群 ,晶体学参数 :a=1 .4 441 ( 5) nm,b=1 .1 4 8... 详细信息

用 Pb( SN) 2 作模板 ,2 ,6-二甲酰基对甲苯酚与二亚乙基三胺通过 [2 +2 ]缩合反应 ,经 Na BH4 还原、脱 Pb2 +、酸化等操作 ,得晶体 BDBPH· 6HBr· 4 H2 O.晶体属单斜晶系 ,P2 1/ c空间群 ,晶体学参数 :a=1 .4 441 ( 5) nm,b=1 .1 4 82 ( 4) nm,c=1 .2 0 90 ( 6) nm,α=90°,β=96.92°,γ=90°,V=1 .990 0 nm3 .大环分子采取椅式构型 ,6个 Br-和 4个 H2 O分子对称分布于大环两侧 .该大环配体结构新颖 ,可用于多种金属配合物的研究 ,对进一步了解金属酶活性中心的结构及其催化作用机理具有重要价值 .

关键词：合成晶体结构酶模型配合物大环多胺配体金属酶

维普期刊数据库

Multifractal Decomposition of Statistically Self-Similar Sets

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,english Series 2001年第3期17卷 507-516页

作者： Jing Hu YU Wuhan Institute of Physics and Mathematics,The Chinese Academy of Sciences,Wuhan 430071,P.R.China e-mail:ding@wipm.whcnc.ac.cnDi He HU College of Mathematics and Statistics.Wuhan University,Wuhan 430072,P.R.China e-mail:dhhu@*** Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan 430071 P. R. China College of Mathematics and Statistics Wuhan University Wuhan 430072 P. R. China

Let K be a statistically self-similar set defined by *** this paper,we construct a random measure ρ which is supported by K and study the multifractal decomposition for K with p. Under such a decomposition,we obtain ... 详细信息

关键词： Statistically self-similar sets Multifractal decomposition Spectrum function

维普期刊数据库

Design Considerations for Pile Groups Supporting Marine Structures with Respect to Scour

在线全文

学校读者我要写书评

暂无评论

engineering（科研） 2012年第12期4卷 833-842页

作者： Yasser e. Mostafa Department of Irrigation and Hydraulics Faculty of Engineering Ain Shams University Cairo Egypt

Piles supporting marine structures such as jetties, relieving platforms, quay walls and fixed offshore structures are subjected to lateral loads due to berthing and mooring forces, wind, waves, storm surges and current forces. This paper presents some factors that affect the design of pile groups supporting marine structures founded in cohesionless soils. Some main aspects that should be considered in the pile group design are addressed such as pile batter angle, pile group arrangement, pile spacing, pile slenderness ratio and magnitude of lateral static loading. Numerical analyses were conducted to investigate these design aspects with and without impact of scour. Different scour depths were considered to cover the possible root causes of scour around pile groups such as waves, current and ship propeller jets. The study revealed that scour has greater impact on lateral loading of pile groups compared to its impact on single piles. Pile groups with side-by-side arrangement exposed to scour are more critical than single piles and piles groups with tandem arrangement due to the combined effect of scour and pile-soil-pile interaction. It is also concluded that scour protection is not always required. More attention and considerations should be given to scour protection around piles especially if the piles are closely spaced, arranged side-by-side and if slenderness ratio is less than 12.5.

关键词： Piles Pile Groups Marine Structures Scour Battered Piles