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Debye-Hckel solution for steady electro-osmotic flow of micropolar fluid in cylindrical microcapillary

Applied Mathematics and Mechanics(English Edition) 2013年第11期34卷 1305-1326页

作者： A. A. SIDDIQUI A. LAKHTAKIA Department of Basic Sciences Bahauddin Zakariya University Nanoengineered Metamaterials Group Department of Engineering Science and MechanicsPennsylvania State University University Park

Analytic expressions for speed, flux, microrotation, stress, and couple stress in a micropolar fluid exhibiting a steady, symmetric, and one-dimensional electro-osmotic flow in a uniform cylindrical microcapillary were derived under the constraint of the Debye-Hiickel approximation, which is applicable when the cross-sectional radius of the microcapillary exceeds the Debye length, provided that the zeta potential is sufficiently small in magnitude. Since the aciculate particles in a micropolar fluid can rotate without translation, micropolarity affects the fluid speed, fluid flux, and one of the two non-zero components of the stress tensor. The axial speed in a micropolar fluid intensifies when the radius increases. The stress tensor is confined to the region near the wall of the mi- crocapillary, while the couple stress tensor is uniform across the cross-section.

关键词： couple stress electro-osmosis microcapillary micropolar fluid microrota-tion steady flow

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Isolation and diagnosis of Helicobacter pylori by a new method: microcapillary culture

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World Journal of Gastroenterology 2015年第9期21卷 2622-2628页

作者： Adil M Allahverdiyev Melahat Bagirova Reyhan Caliskan Hrisi Bahar Tokman Hayat Aliyeva Gokce Unal Olga Nehir Oztel Emrah Sefik Abamor Hilal Toptas Pelin Yuksel Fatma Kalayci Mustafa Aslan Yusuf Erzin Kadir Bal Bekir S Kocazeybek Department of Bioengineering Yildiz Technical University34201 IstanbulTurkey Department of Medical Microbiology Cerrahpasa Faculty of MedicineIstanbul University34098 IstanbulTurkey Department of Microbiology and Immunology Azerbaijan Medical UniversityAZ1022 BakuAzerbaijan Department of Gastroenterology Cerrahpasa Faculty of MedicineIstanbul University34098 IstanbulTurkey

AIM:To investigate the performance of the microcapillary culture method(MCM) in Helicobacter pylori(***) isolation and ***:microcapillary culture(MC),classical culture(CC),rapid urease(CLO) test,and histopathologic examination(HE) were performed with biopsy *** biopsy samples were loaded into capillary tubes and incubated for 48 h at 37 ℃ without providing a microaerophilic ***,three or four loops of the homogenized sample were inoculated in a ready-to-use selective medium(Becton Dickinson,Helicobacter Agar,Modified) specific for the isolation of *** and incubated at 37 ℃ in a microaerophilic atmosphere provided by Campy Gen(Becton Dickinson,Gas Pack).Bacteria reproducing in microcapillary tubes were evaluated in an inverted microscope and also were evaluated after performing a CC with the *** obtained by CC,CLO test,and HE were compared with those of *** diagnostic performances of the methods used in this study were evaluated for specificity,sensitivity,positive predictive value(PPV),negative predictive value(NPV),and ***:*** was found positive by CLO test +HE and/or CC culture in 26 patient antrum and corpus biopsy *** 25(25/26) patient biopsy samples,*** was isolated by MCM,whereas in only 14(14/26) patient biopsy samples,*** was isolatedby *** test and HE were found positive in 17(17/26) patient biopsy *** the results of the isolation of *** by MCM,CC,CLO test,and HE,the sensitivity of the MCM was found as 96%,the specificity as 80%,the PPV as 83%,the NPV as 95%,and the 95%CI as 0.76(χ2 =31.51,P microcapillary cultivation method for *** has high diagnostic sensitivity compared with CC,HE,and CLO tests.

关键词： microcapillary culture Classical culture New metho

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微通道塑料制品的成型加工与应用前景

微通道塑料制品的成型加工与应用前景

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2012年全国高分子材料科学与工程研讨会

作者：许忠斌王柏村徐浙云曹佳培苏良瑶浙江大学化学工程与生物工程学系

＜正＞由于尺度效应,直径50～500μm微通道能强化传质、传热、比表面积大,是微流控芯片、微换热器、微反应器以及肾透析等医用装置的关键部件。大量微通道结构的集成能提高通量,实现规模化和工业化应用,同时可得到各种新颖的结构材料,... 详细信息

＜正＞由于尺度效应,直径50～500μm微通道能强化传质、传热、比表面积大,是微流控芯片、微换热器、微反应器以及肾透析等医用装置的关键部件。大量微通道结构的集成能提高通量,实现规模化和工业化应用,同时可得到各种新颖的结构材料,扩展应用领域。其中,微通道

关键词： microcapillary MCF MCT Extrusion Processing Plastic Products

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