... Unfolding force responses of the R9-R12 region of talin rod Unfolding force responses of the R7-R9 region of talin rod Experimental setup of αCM stretching Force responses of wild type αCM ... their environment is essential for the formation and functioning of tissues Cell-cell adhesion is one of the corner stones in the arising of multicellular organisms Depending on the context, cell-cell ... Altered cell-cell and cell-matrix adhesion function is one of the hall marks of cancer [49, 50] The proper functions of cell adhesions, both in terms of adhesion strength and underlying signaling...
Ngày tải lên: 09/09/2015, 08:13
... direction of pulling by leukocytes In (B), the force on the EC is in the direction of shear stress In (C), the force is in the direction of tension of actin filaments, maintained with the help of ... innate immune system and constitute the first line of defense against inflammation or infection Infection in the body causes activation of ECs and expression of cell adhesion molecules [46] Then, ... dependent on the organization of the F-actin cytoskeleton, whereby cells on stiff surfaces exerting larger traction forces have a more stretched and organized actin cytoskeleton than those on a softer...
Ngày tải lên: 22/03/2014, 21:20
Báo cáo hóa học: " Tuning the electronic properties of boron nitride nanotube by mechanical uni-axial deformation: a DFT study" docx
... increases Consequently, the elongation of (8,0) BNNT is mainly due to the altering of bond angles and the elongation of Bond-II, which is parallel to the axial direction The relationship of bond lengths ... DOS of occupied Density of States (electrons/eV) Density of States (electrons/eV) Density of States (electrons/eV) Density of States (electrons/eV) Density of States (electrons/eV) 0.6 Page of ... H with the increase of strain can also be seen Consequently, the elongation of the (5,5) armchair BNNT is mainly due to the altering of bond angles and the elongation of Bond-IV which is slanted...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo y học: "Effects of short-term glucocorticoid treatment on changes in cartilage matrix degradation and chondrocyte gene expression induced by mechanical injury and inflammatory cytokines" doc
... cartilage degradation The pathways of interest included regulation of aggrecanase gene expression and the activation of aggrecanases by proprotein convertases, the effects of DEX on inducible nitric ... the concentration of RNA and the purity of the extract Reverse transcription of equal quantities of RNA (2.5 μg) from each condition was performed using the AmpliTaq-Gold Reverse Transcription ... including studies of DEX regulation of chondrocyte transcription, effects of DEX on iNOS mRNA and protein levels, and inhibition of glucocorticoid receptors and proprotein convertases Bovine cartilage...
Ngày tải lên: 12/08/2014, 18:20
Báo cáo y học: "Short reflex expirations (expiration reflexes) induced by mechanical stimulation of the trachea in anesthetized cats" ppt
... "expiration reflex" for both of them [7,15] However, this conclusion is based only on qualitative inspection of the motor patterns Additional evidence is required to support the conclusion that ... cats – PCA T (onset of PCA – ABD peak) T (peak of PCA – ABD peak) T (ABD peak – offset of PCA) Relative amplitude of PCA Number of cats – ThAr T (onset of ThAr – ABD peak) T (peak of ThAr – ABD ... the magnitude of the expulsion reached at least 0.2 kPa (120 ERt, 99 of them induced in expiration, 21 in inspiration) for further analysis The ABD EMG of 34 out of 120 ERt consisted of two bursts...
Ngày tải lên: 13/08/2014, 08:20
Báo cáo y học: "Alveolar instability caused by mechanical ventilation initially damages the nondependent normal lung" ppt
... Available online http://ccforum.com/content/11/5/R104 Figure Comparison of abnormal alveoli at peak inspiration and end expiration Abnormal alveoli at peak inspiration and end expiration as seen ... mechanically Conclusion Injurious MV, over time, will cause damage to pulmonary alveoli, significantly altering their mechanics of ventilation The mechanism of injury is probably a combination of tissue ... suction prevents normal pleural expansion and contraction, and thus prevents healthy alveoli from chang- Available online http://ccforum.com/content/11/5/R104 ing size normally with ventilation...
Ngày tải lên: 13/08/2014, 08:20
Synthesis of nanostructured titanium based intermetallics by mechanical alloying
... 5.3.2 Thermodynamic consideration of amorphization of Ti-Al system 5.3.3 209 Amorphization of Ti-48Al-2Mn- 2Nb quaternary system 212 5.4 Conclusions Chapter 215 Fabricating of TiN and Al-TiN composite ... micrograph of cross-section of Ti-Al-2Mn- 2Nb powder mixture after h of milling, at low magnification Fig 5.4 (c) SEM micrograph of cross-section of Ti-Al-2Mn- 2Nb powder mixture after h of milling, ... magnification Fig 5.4 (d) SEM micrograph of cross-section of Ti-Al-2Mn- 2Nb powder mixture after 10 h of milling, at low magnification Fig 5.4 (e) SEM micrograph of cross-section of Ti-Al-2Mn- 2Nb powder...
Ngày tải lên: 17/09/2015, 17:19
Tài liệu Machine Tool & MachiningPrepared By: Hafiz Muhammad Nadeem Sharif B.Sc, M.Sc Mechanical U Waterloo Canada Lecturer MED, U.E.T Lahore doc
... commonly used ratios by the operation of a lever Components of Metal Lathe: • A metal lathe consists of, at the least, a headstock, bed, carriage and tailstock The better machines are solidly constructed ... one revolution of the part • Depth of Cut: • The depth of cut is defined as the distance the tool is plunged into the surface Turning operation Basic Metal Cutting Theory The usual conception ... speed is the material to be cut However, one should also consider material of the tool, rigidity of the work piece, size and condition of the lathe, and depth of cut METAL REMOVAL RATE METAL REMOVAL...
Ngày tải lên: 17/02/2014, 18:20
Retrieval of the source location and mechanical descriptors of a hysteretically-damped solid occupying a half space by full wave inversion of the the response signal on its boundary doc
... precision of retrieval of pK depends on the degree of a priori knowledge of the other parameters of p hal-00657609, version - Jan 2012 1.2 The two models In order to carry out an inversion of a ... 2.5 Application of the boundary conditions to obtain the coefficients of the plane wave representations of the displacement field From now on, we restrict the discussion to in-plane motion, so that ... solution to the forward problem of the prediction of the vertical component of displacement response to a uniform vertical strip load on the boundary of the half space 2.6 Numerical issues concerning...
Ngày tải lên: 18/03/2014, 01:21
báo cáo hóa học:" Assessing mechanical integrity of spinal fusion by in situ endochondral osteoinduction in the murine model" potx
... fusion, surgeons take radiographs of a patient’s spine in flexion and extension Based on the limitations in motion observed between two vertebrae after fusion, a surgeon can assess the quality of ... intevertebral motion at L3-L5 of 5.7° reported during flexion and extension of the human spine is very similar to the mean intervertebral motion of 6.1° demonstrated in flexion and extension of the mouse ... that lacked fusion by CT inspection exhibited greater than 3.5 degrees of intervertebral motion with the 150 degree flexion/extension testing condition Soft tissue envelopes of explanted spines...
Ngày tải lên: 20/06/2014, 04:20
Báo cáo hóa học: " Evaluating interaction forces between BSA and rabbit anti-BSA in sulphathiazole sodium, tylosin and levofloxacin solution by AFM" potx
... histograms of measured adhesion forces in levofloxacin solution (10 mM) The distributions of the adhesion forces could be fitted to Gaussian models hydrogen bonded monomer-monomer interactions of prion ... nonspecific adhesion The variation of levofloxacin concentration did not clearly influence the specific and nonspecific force of BSA and rabbit antiBSA This indicates that the presence of levofloxacin ... levofloxacin solution (one of the drugs dissolved in PBS) over a concentration range of 1070 mM A complete series of measurements in the control and in each of the drug solutions were conducted using...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Improvement in dielectric and mechanical performance of CaCu3.1Ti4O12.1 by addition of Al2O3 nanoparticles" pot
... method produced a reasonably uniform distribution of the nanoparticles in the matrix of the composites The surfaces of the CC3.1TO samples showed a duplex microstructure consisting of coarse grains ... Effects of Cu stoichiometry on the microstructures, barrier-layer structures, electrical conduction, dielectric responses, and stability of CaCu3Ti4O12 Acta Mater 2006, 54:2867-2875 14 Kwon S, ... function of Al2O3 content of the samples Figure SEM micrographs of as-sintered surfaces of the CC3.1TO-Al2O3 nanocomposites (a) CC3.1TO and (b) CC3.1TO and vol.% Al2O3 Figure Dielectric constants...
Ngày tải lên: 20/06/2014, 23:20
Báo cáo hóa học: " Mechanical Deformation Behavior of Nonpolar GaN Thick Films by Berkovich Nanoindentation" ppt
... slight discontinuity (‘‘pop-in’’) of the yield response for c-plane epilayer, which has been most commonly associated with the sudden nucleation of dislocations and propagation along easy slip ... comparative softness of the m-plane GaN is due to the orientation of the nonpolar basal plane, and the ease in which slip can occur along the direction On the other hand, Young’s modulus E value of the ... impressions left on the m-plane nonpolar GaN are significantly different, and lateral cracks run through the center of the indentation irrespective of the side directions of triangular indentations,...
Ngày tải lên: 22/06/2014, 00:20
Báo cáo hóa học: " Detecting Impulses in Mechanical Signals by Wavelets" ppt
... Lectures on Wavelets, vol 61 of CBMS-NSF Regional Conference Series in Applied Mathematics, SIAM, Philadelphia, Pa, USA, 1992 [10] D L Donoho, “De-noising by soft-thresholding,” IEEE Transactions on ... enhance this function Hence, a new flexible soft-threshold-based denoising method is further studied in the following section SOFT THRESHOLD The application of threshold criterion is effective in ... response is still significant Since the time resolution of wavelet transform notably increases depending on the duration of the mother wavelet, the nonstationary feature (including impulse), in most cases,...
Ngày tải lên: 23/06/2014, 01:20
Project Gutenberg’s Number-System of Algebra, by Henry Fine potx
... declaration of the equivalence of certain definite combinations of symbols, and the formal consequences of these laws—the equations 1–5 of § 10—become definitions of addition, subtraction, multiplication, ... possession of definitions of the addition, subtraction, multiplication, and division of this symbol, as well as of the relations of equality and greater and lesser inequality—definitions which are consistent ... determinateness of division is here not an independent assumption, but a consequence of the definition of multiplication and the determinateness of the division of rationals The same thing is true of the...
Ngày tải lên: 28/06/2014, 19:20