WorldWideScience

Sample records for adhesive tape

  1. Adhesive tape exfoliation

    Bohr, Jakob

    2015-01-01

    Single-crystal graphite can be cleaved by the use of an adhesive tape. This was also the initial route for obtaining graphene, a one-layer thick graphite slab. In this letter a few simple and fun considerations are presented in an attempt to shed some light on why this procedure is successful. In...... particular on the nature of the surprisingly small number of repetitive steps that are needed in order to obtain a single-layer slab. Two frameworks for exfoliation are investigated: parallel exfoliation involving repetitive simultaneous cleaving, the other, serial exfoliation, which involves the repetitive...

  2. [Adhesive tape on the face--criminalistic aspects].

    Tomforde, Anja; Tsokos, Michael; Anders, Sven; Püschel, Klaus

    2003-01-01

    Under forensic differential diagnostic aspects postmortem findings of adhesive tape in the face suggest either suicide, an autoerotic accident or homicide, in which case the adhesive tape could have been used for sealing the mouth or as a means to commit the homicide itself. 9 autopsy cases are described as examples with this constellation and discussed under criminological aspects. PMID:12872683

  3. Rate Dependent Adhesion Energy and Nonsteady Peeling of Inextensible Tapes

    Kovalchik, Christopher; Molinari, Alain; Ravichandran, Guruswami

    2014-01-01

    Elastomer based pressure sensitive adhesives used in various peeling applications are viscoelastic and expected to be rate sensitive. The effects of varying peel velocity on adhesion energy and its dependence on the peel angle and rate of peeling are investigated. Experiments are conducted on an adhesive tape using a displacement-controlled peel test configuration. By adjusting the peel arm length, the peel velocity can be continuously varied though the extremity of the film is displaced at a...

  4. Temporary ectropion therapy by adhesive taping: a case study

    Habermann Anke

    2008-07-01

    Full Text Available Abstract Introduction Various surgical procedures are available to correct paralytic ectropion, which are applied in irreversible facial paresis. Problems occur when facial paresis has an unclear prognosis, since surgery of the lower eyelid is usually irreversible. We propose a simple method to correct temporary ectropion in facial palsy by applying an adhesive strip. Patients and methods Ten patients with peripheral facial paresis and paralytic ectropion were treated with an adhesive strip to correct paralytic ectropion. We used "Steri-Strips" (45 × 6.0 mm, which were taped on the carefully cleaned skin of the lower eyelid and of the adjacent zygomatic region until the prognosis of the paresis was clarified. In addition to the examiner's evaluation of the lower lacrimal point in the lacrimal lake, subjective improvement of the symptoms was assessed using a visual analogue scale (VAS, 1–10. Results 9 patients reported a clear improvement of the symptoms after adhesive taping. There was a clear regression of tearing (VAS (median = 8; 1 = no improvement, 10 = very good improvement, the cosmetic impairment of the adhesive tape was low (VAS (median = 2.5; 1 = no impairment, 10 = severe impairment and most of the patients found the use of the adhesive strip helpful. There was slight reddening of the skin in one case and well tolerated by the facial skin in the other cases. Conclusion The cause and location of facial nerve damage are decisive for the type of surgical therapy. In potentially reversible facial paresis, procedures should be used that are easily performed and above all reversible without complications. Until a reliable prognosis of the paresis can be made, adhesive taping is suited for the temporary treatment of paralytic ectropion. Adhesive taping is simple and can be performed by the patient.

  5. Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling

    Dalbe, Marie-Julie; Cortet, Pierre-Philippe; Ciccotti, Matteo; Vanel, Loic; Santucci, Stephane

    2015-01-01

    Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an adhesive tape from a flat surface. In a given range of peeling velocity, this front displays a multiscale unstable dynamics, entangling two well-separated spatiotemporal scales, which correspond to microscopic and macroscopic dynamical stick-slip instabilities. While the periodic release of the stretch energy of the whole peeled ribbon drives the classical macro-stick-slip, we show that the m...

  6. High Fidelity Tape Transfer Printing Based On Chemically Induced Adhesive Strength Modulation

    Sim, Kyoseung; Chen, Song; Li, Yuhang; Kammoun, Mejdi; Peng, Yun; Xu, Minwei; Gao, Yang; Song, Jizhou; Zhang, Yingchun; Ardebili, Haleh; Yu, Cunjiang

    2015-11-01

    Transfer printing, a two-step process (i.e. picking up and printing) for heterogeneous integration, has been widely exploited for the fabrication of functional electronics system. To ensure a reliable process, strong adhesion for picking up and weak or no adhesion for printing are required. However, it is challenging to meet the requirements of switchable stamp adhesion. Here we introduce a simple, high fidelity process, namely tape transfer printing(TTP), enabled by chemically induced dramatic modulation in tape adhesive strength. We describe the working mechanism of the adhesion modulation that governs this process and demonstrate the method by high fidelity tape transfer printing several types of materials and devices, including Si pellets arrays, photodetector arrays, and electromyography (EMG) sensors, from their preparation substrates to various alien substrates. High fidelity tape transfer printing of components onto curvilinear surfaces is also illustrated.

  7. New developments for the investigation of hard X-rays emitted by peeling adhesive tapes.

    Krämer, D; Lützenkirchen-Hecht, D; Lühmann, B; Keite-Telgenbüscher, K; Frahm, R

    2013-05-01

    We realized an advanced apparatus for the investigation of emitted X-rays produced by peeling adhesive tape rolls under vacuum conditions. Two stepper motors can unwind and rewind a tape roll, and an additional roller with an optical encoder provides measurement and control of the tape speed. This way reproducible and consecutive experiments are feasible without having to change the tape or break the vacuum. The dependence of the X-ray emission on tape speed, gas pressure, type of adhesive tape, and detector angle has been investigated. The resulting spectra are continuous and span an X-ray energy range of typically 2-60 keV with high intensity. Furthermore, the new apparatus allows the in situ metalization of adhesive tape rolls by a gold sputter source. A significantly increased X-ray emission was observed for adhesive tapes with a metal coating. Thin metal foils have been placed between the tape and the detector, different K- and L-absorption edges could be measured. A considerable enhancement of the emission was achieved under the influence of the magnetic field of an NdFeB permanent magnet. PMID:23742586

  8. Intermittent stick-slip dynamics during the peeling of an adhesive tape from a roller

    Cortet, Pierre-Philippe; Dalbe, Marie-Julie; Guerra, Claudia; Cohen, Caroline; Ciccotti, Matteo; Santucci, Stéphane; Vanel, Loïc

    2013-01-01

    We study experimentally the fracture dynamics during the peeling at a constant velocity of a roller adhesive tape mounted on a freely rotating pulley. Thanks to a high speed camera, we measure, in an intermediate range of peeling velocities, high frequency oscillations between phases of slow and rapid propagation of the peeling fracture. This so-called stick-slip regime is well known as the consequence of a decreasing fracture energy of the adhesive in a certain range of peeling velocity coup...

  9. Modeling of the Peeling Process of Pressure-sensitive Adhesive Tapes with the Combination of Maxwell Elements

    Sato, Katsuhiko; Toda, Akihiko

    2004-01-01

    A simple model for the peeling process of pressure-sensitive adhesive tape is presented. The model consists of linear springs and dashpots and can be solved analytically. Based on the modeling, the curved profile of the peeling tape is spontaneously determined in terms of viscoelastic properties of adhesives. Using this model, two experimental results are discussed: critical peel rates in the peel force and the peel rate dependence of the detachment process of adhesive from the substrate.

  10. Inertial and stick-slip regimes of unstable adhesive tape peeling.

    Dalbe, Marie-Julie; Villey, Richard; Ciccotti, Matteo; Santucci, Stéphane; Cortet, Pierre-Philippe; Vanel, Loïc

    2016-05-18

    We present an experimental characterization of the detachment front unstable dynamics observed during the peeling of pressure sensitive adhesives. We use an experimental set-up specifically designed to control the peeling angle θ and the peeled tape length L, while peeling an adhesive tape from a flat substrate at a constant driving velocity V. High-speed imaging allows us to report the evolution of the period and amplitude of the front oscillations, as well as the relative durations of their fast and slow phases, as a function of the control parameters V, L and θ. Our study shows that, as the driving velocity or the peeling angle increases, the oscillations of the peeling front progressively evolve from genuine "stick-slip" oscillations, made of alternating long stick phases and very brief slip phases, to sinusoidal oscillations of amplitude twice the peeling velocity. We propose a model which, taking into account the peeling angle-dependent kinetic energy cost to accelerate and decelerate the peeled tape, explains the transition from the "stick-slip" to the "inertial" regime of the dynamical instability. Using independent direct measurements of the effective fracture energy of the adhesive-substrate joint, we show that our model quantitatively accounts for the two regimes of the unstable dynamics. PMID:27050487

  11. Combination of Adhesive-tape-based Sampling and Fluorescence in situ Hybridization for Rapid Detection of Salmonella on Fresh Produce

    Bisha, Bledar; Brehm-Stecher, Byron F.

    2010-01-01

    This protocol describes a simple approach for adhesive-tape-based sampling of tomato and other fresh produce surfaces, followed by on-tape fluorescence in situ hybridization (FISH) for rapid culture-independent detection of Salmonella spp. Cell-charged tapes can also be placed face-down on selective agar for solid-phase enrichment prior to detection. Alternatively, low-volume liquid enrichments (liquid surface miniculture) can be performed on the surface of the tape in non-selective broth, fo...

  12. A novel method to fabricate parylene-based flexible microfluidic platforms with commercial adhesive tape

    We developed a new method to fabricate parylene-based flexible microfluidic platforms using commercial adhesive tape. Most of the previous methods required the preparation of parylene channels via a parylene–to–parylene bonding, which could only be achieved at high pressure and temperature. Instead, our method exploits the adherent property of commercial tape as a substrate for the parylene peel-off process. Once the parylene thin film is deposited by chemical vapour deposition (CVD) on top of the polydimethylsiloxane (PDMS) replica, prepared by conventional lithography process, an adhesive tape peels off the deposited parylene layer with the micro-scale structures from the PDMS replica. We found that the minimum size of the circle posts successfully fabricated by this process is about 10 μm in diameter and 10 μm in height; the maximum value in aspect ratio is about 2.5. In our experimental investigation, pressure in the parylene channels with different wall thicknesses, was measured to estimate the hydraulic resistance of the channel. Our results are comparable with calculated data, with a normalized deviation smaller than 5%. In addition, the hydraulic resistance of the channels on the curved surface obtained with a similar approach showed an increase when the radius of curvature was reduced. Finally, this contribution shows that our method enables a simple and relatively inexpensive fabrication of flexible microfluidic platforms. (technical note)

  13. Non-destructive sampling of rock-dwelling microbial communities using sterile adhesive tape.

    Cutler, Nick A; Oliver, Anna E; Viles, Heather A; Whiteley, Andrew S

    2012-12-01

    Building stone provides a habitat for an array of microorganisms, many of which have been demonstrated to have a deleterious effect on the appearance and/or structural integrity of stone masonry. It is essential to understand the composition and structure of stone-dwelling (lithobiontic) microbial communities if successful stone conservation strategies are to be applied, particularly in the face of global environmental change. Ideally, the techniques used to sample such assemblages should be non-destructive due to the sensitive conservation status of many stone buildings. This paper quantitatively assesses the performance of sterile adhesive tape as a non-destructive sampling technique and compares the results of tape sampling with an alternative, destructive, sampling method. We used DNA fingerprinting (TRFLP) to characterise the algal, fungal and bacterial communities living on a stone slab. Our results demonstrate that tape sampling may be used to collect viable quantities of microbial DNA from environmental samples. This technique is ideally suited to the sampling of microbial biofilms, particularly when these communities are dominated by green algae. It provides a good approximation of total community diversity (i.e. the aggregate diversity of epilithic and endolithic communities). Tape sampling is straightforward, rapid and cost effective. When combined with molecular analytical techniques, this sampling method has the potential to make a major contribution to efforts to understand the structure of lithobiontic microbial communities and our ability to predict the response of such communities to future environmental change. PMID:23022426

  14. Sequence discrimination of heterogeneous crossing of seal impression and ink-printed text using adhesive tapes.

    Lee, Ka Young; Lee, Joong; Kong, Seong G; Kim, Byounghyun

    2014-01-01

    This paper presents a technique to discriminate the sequence of stamped seal impression and ink-printed text in a document to detect falsely signed documents. In many Asian countries where a seal is widely used to endorse documents, a possibly forged document involves a seal impressed before the text is printed. The proposed method uses adhesive tapes with peel adhesion strength of approximately 25 oz/in. to exfoliate the top layer of the overlapping region of seal impression and ink-printed text in the document. A pair of digital images of the overlapping region, captured using an infinite focus microscope, is compared for color changes before and after the exfoliation with adhesive tapes. The proposed sequence discrimination index (SDI) measures the amount of color changes before and after the exfoliation to determine the sequence of seal impression and printed text. Experiment results show that the SDI successfully discriminates the sequence of seal impression and printed text for different types of ink cartridges and seal inkpads under various storage conditions, enabling forensic investigation of falsely signed documents with a seal. PMID:24378311

  15. Imaging the stick-slip peeling of an adhesive tape under a constant load

    Cortet, Pierre-Philippe; Ciccotti, Matteo; Vanel, Loïc

    2007-01-01

    Using a high speed camera, we study the peeling dynamics of an adhesive tape under a constant load with a special focus on the so-called stick-slip regime of the peeling. It is the first time that the very fast motion of the peeling point is imaged. The speed of the camera, up to $16000$ fps, allows us to observe and quantify the details of the peeling point motion during the stick and slip phases: stick and slip velocities, durations and amplitudes. First, in contrast with previous observati...

  16. Increased adhesion of polydimethylsiloxane (PDMS) to acrylic adhesive tape for medical use by surface treatment with an atmospheric pressure rotating plasma jet

    Jofre-Reche, José Antonio; Pulpytel, Jérôme; Arefi-Khonsari, Farzaneh; Martín-Martínez, José Miguel

    2016-08-01

    The surface properties of polydimethylsiloxane (PDMS) were modified by treatment with an atmospheric pressure rotating plasma jet (APPJ) and the surface modifications were studied to assess its hydrophilicity and adhesion to acrylic adhesive tape intended for medical applications. Furthermore, the extent of hydrophobic recovery under different storage conditions was studied. The surface treatment of PDMS with the APPJ under optimal conditions noticeably increased the oxygen content and most of the surface silicon species were fully oxidized. A brittle silica-like layer on the outermost surface was created showing changes in topography due to the formation of grooves and cracks. A huge improvement in T-peel and the shear adhesive strength of the APPJ-treated PDMS surface/acrylic tape joints was obtained. On the other hand, the hydrophilicity of the PDMS surface increased noticeably after the APPJ treatment, but 24 h after treatment almost 80% hydrophobicity was recovered and the adhesive strength was markedly reduced with time after the APPJ treatment. However, the application of an acrylic adhesive layer on the just-APPJ-treated PDMS surface retained the adhesive strength, limiting the extent of hydrophobic recovery.

  17. Flexible and Adhesive Surface Enhance Raman Scattering Active Tape for Rapid Detection of Pesticide Residues in Fruits and Vegetables.

    Chen, Jiaming; Huang, Youju; Kannan, Palanisamy; Zhang, Lei; Lin, Zhenyu; Zhang, Jiawei; Chen, Tao; Guo, Longhua

    2016-02-16

    The efficient extraction of targets from complex surfaces is vital for technological applications ranging from environmental pollutant monitoring to analysis of explosive traces and pesticide residues. In our present study, we proposed a proof-of-concept surface enhance Raman scattering (SERS) active substrate serving directly to the rapid extraction and detection of target molecules. The novel substrate was constructed by decorating the commercial tape with colloidal gold nanoparticles (Au NPs), which simultaneously provides SERS activity and "sticky" of adhesive. The utility of SERS tape was demonstrated by directly extracting pesticide residues in fruits and vegetables via a simple and viable "paste and peel off" approach. The obtained strong and easily distinguishable SERS signals allow us to detect various pesticide residues such as parathion-methyl, thiram, and chlorpyrifos in the real samples with complex surfaces including green vegetable, cucumber, orange, and apple. PMID:26810698

  18. A new methodology for the visualization of latent fingermarks on the sticky side of adhesive tapes using novel fluorescent dyes.

    Barros, Hélio L; Stefani, Valter

    2016-06-01

    Three novel fluorescent dyes were evaluated for the detection of latent fingermarks on different types and colors of adhesive tapes. Compared with the conventional reagents used to reveal latent fingermarks on these surfaces, these new fluorescent dyes have many advantages. They are highly selective to fingermarks, require only a simple procedure, do not need pre- or post-treatment, have high thermal and photochemical stability, are low in cost and use only water as a solvent. In addition, the emitted fluorescence creates a sharp contrast with the fingermark surface, meaning the fingermarks can be clearly visualized and photographed when excited with longwave ultraviolet light (365nm). PMID:27084980

  19. The Exponentially Faster Stick-Slip Dynamics of the Peeling of an Adhesive Tape

    MISHRA, NACHIKETA; Parida, Nigam Chandra; Raha, Soumyendu

    2014-01-01

    The stick-slip dynamics is considered from the nonlinear differential-algebraic equation (DAE) point of view and the peeling dynamics is shown to be a switching differential index DAE model. In the stick-slip regime with bifurcations, the differential index can be arbitrarily high. The time scale of the peeling velocity, the algebraic variable, in this regime is shown to be exponentially faster compared to the angular velocity of the spool and/or the stretch rate of the tape. A homogenization...

  20. Fatigue study and improve reliability of cantilever type micro piezoelectric energy harvesters reinforced with flexible adhesive conductive tape

    Lin, T. K.; Hsieh, Y. C.; Chen, C. T.; Chen, J. J.; Wu, W. J.

    2016-04-01

    Cantilever type piezoelectric energy harvester (PEH) is widely adopted in the design of vibration energy harvesters because of simple, effective and easy to fabricate. When the PEH is working under excitation of continuous vibration sources, like mounting on motors, reliability and durability is a major concern. The failure mode and fatigue issues will be important design considerations in field applications. Since the largest strain of a cantilever structure is located in the clamping position of fixed end, the location is therefore the weakest point of the structure and the hot zone of mechanical cracks. The failure mode due to fatigue under long time excitation of vibration sources is typically continuously developing small cracks on the piezoelectric PZT films till tearing the surface electrodes and caused open circuit to the output circuitry. Therefore, extending the lifetime with minimize the surface electrodes cracking becomes a key point for field applications. Previously, we focused on the output performance of PEH. At PowerMEMS 2014 [1], we presented a high performance PEH based on PZT thin films fabricated with a homemade PZT deposition equipment on stainless steel substrates. We confirmed that the stainless steel based PEH can generate better output power than silicon based devices under the same vibration excitation levels, and also the stainless based PEH can have longer lifetime when excited at higher vibration levels due to better mechanical strength. In this study, we tried to further reinforce the PEH with a conductive adhesive tape sticking on the surface electrode near the clamping position. We investigated the change of failure mode and mechanical behaviors, including the frequency bandwidth and non-linearity of the piezoelectric energy harvester. The PEH devices was mounted on a shaker for long time testing with vibration frequency set around 120Hz at 0.5g, 0.6g, and 0.7g acceleration vibration levels. The electrodes of the PEH device were

  1. Analysis of trace element compositions in adhesive cloth tapes using high-energy x-ray fluorescence spectrometer with three-dimensional polarization optics for forensic discrimination

    The forensic discrimination of adhesive cloth tapes often used in crimes was developed using a high-energy energy-dispersive X-ray fluorescence spectrometer with 3-dimensional polarization optics. The best measurement condition for discrimination of the tape was as follows: secondary targets, Rh and Al2O3; measurement time, 300 s for Rh and 600 s for Al2O3; 14 elements (Ca, Ti, Cr, Mn, Fe, Ni, Zn, Sr, Zr, Nb, Mo, Sb, Ba and Pb) were used for discrimination. It is found that the combined information of yarn density and the XRF peak intensity of the 14 elements successfully discriminated 29 out of 31 samples, of which 2 probably had the same origin. This technique is useful for forensic analysis, because it is nondestructive, rapid and easy. Therefore, it can be applied to actual forensic identification. (author)

  2. Novel L-DOPA-derived poly(ester amide)s: monomers, polymers, and the first L-DOPA-functionalized biobased adhesive tape.

    Manolakis, Ioannis; Noordover, Bart A J; Vendamme, Richard; Eevers, Walter

    2014-01-01

    The synthesis, characterization, and testing of a range of novel bio-inspired L-DOPA-derived poly(ester amide)s is presented, using a widely applicable, straightforward chemistry. A model system is used to study and establish the monomer and polymer synthetic protocols, and to provide a set of optimum reaction conditions. It is further shown that fully biobased L-DOPA-containing adhesive tapes can be fabricated, which are positively evaluated in terms of their adhesive properties. The newly developed synthetic protocol constitutes a versatile platform for accessing and tailoring a plethora of relevant structures, including a variety of potentially biocompatible poly(ethylene glycol)-based materials. PMID:24265232

  3. Tamper tape seals

    Tamper tapes are appealing for many applications due to their ease of use and relative robustness. Applications include seals for temporary area denial, protection of sensitive equipment, chain-of-custody audit trails, and inventory control practices. A next generation of adhesive tamper tapes is being developed that combines the best features of commercially available devices with additional state-of-the-art features in tamper indication, tamper-resistance, and counterfeit-resistance. The additional features are based on U.S. Department of Energy (DOE) research and development (R ampersand D) activities that were originally associated with preparations for the Strategic Arms Reduction Treaty (START). New features include rapid-set, chemical-cure adhesive systems that allow user-friendly application and layered levels of counterfeit-resistance based on unique open-quotes fingerprintclose quotes characteristics that can be accessed as desired

  4. Kinesio Taping technique and Kinesio Tex

    Dan Brăteanu

    2009-01-01

    Kinesio Taping is a method of application of a special tape, adhesive and elastic, which imitates the qualities of the skin.Taping tape is named Kinesio Tex, is made of cotton with acrylic adhesive and it applies directly on skin, on affected musclelength and/or around some joints depending on affection, having the quality of not modifing the biomechanical movement andto facilitate the blood and limphatic circulation of the respective area. It is easy supported on skin/by skin, reduces the pa...

  5. 硅胶舒乐贴在新生儿光照疗法眼罩固定中的应用%Application of kind removal silicone adhesive tape on fixing eyepatch with phototherapy for neonates

    马月兰

    2014-01-01

    Objective To observe the effect of kind removal silicone adhesive tape on fixing eyepatch with phototherapy for neonates. Methods One hundred and thirty newborn undergoing phototherapy were randomly divided into control group(n=62)and experiment group (n=68). The routine adhesive tape was used to fix the eyepatches in the control group and in the experiment group 3 M kind removal silicone adhesive tape was used. The two groups were compared in terms of eyepatch falloff,skin complications and times of crying.Result The times of eyepatch falloff,rate of skin complications and times of crying in the experiment group were lower than those in the control group (P<0.05).Conclusion The application of 3 M kind removal silicone adhesive tape can significantly reduce skin injuries of newborns and improve the effect of fixation.%目的:观察硅胶舒乐贴在新生儿光照疗法(简称光疗)眼罩固定中的效果。方法选择130例接受光疗的新生儿,按接受光疗日期分组,单号为观察组68例,双号为对照组62例,对照组采用微孔通气型医用胶带固定眼罩,观察组采用3M硅胶舒乐贴固定眼罩。观察两组新生儿眼罩脱落、皮肤并发症和摘除眼罩时新生儿哭闹发生情况。结果观察组新生儿眼罩脱落次数,皮肤并发症和哭闹发生率低于对照组,两组比较,差异均有统计学意义(P<0.05)。结论新生儿光疗时采用3M硅胶舒乐贴对眼罩进行固定,可降低新生儿皮肤损伤,提高固定效果。

  6. Importance of a suitable working protocol for tape stripping experiments on porcine ear skin: Influence of lipophilic formulations and strip adhesion impairment.

    Nagelreiter, C; Mahrhauser, D; Wiatschka, K; Skipiol, S; Valenta, C

    2015-08-01

    The tape stripping method is a very important tool for dermopharmacokinetic experiments in vitro and the accurate measurement of the removed corneocytes is key for a reliable calculation of a drug's skin penetration behavior. Therefore, various methods to quantify the amount of corneocytes removed with each tape strip have been employed, ranging from gravimetric approaches to protein assays and recently near infrared densitometry (NIR) has become very widely used. As this method is based on a reduction of light intensity, interference of formulation components seems conceivable, as they could scatter light and change the results. In this study, NIR measurements were compared to a protein assay and in addition, the influence of highly lipophilic formulations on the results of tape stripping experiments was investigated as impairment of the adherence of strips has been reported. To this end, different tape stripping protocols were employed. The obtained results ensure suitability of the NIR method and moreover suggest a more pronounced influence on adherence with increasing lipophilicity in applied formulations. The results show that adaptation of the tape stripping protocol to the specifications of envisioned experiments is important for reliable results. Two protocols were found favorable and are presented in this work. PMID:26117191

  7. Studies of selected properties of high-temperature superconducting tape 2G HTS SF series - the example: tape SF12050

    J. Jędryka; M. Szota; M. Nabiałek; A. Łukaszewicz; Bukowska, A.

    2013-01-01

    Purpose: In presented paper were characterized selected properties of high-temperature superconducting tape 2G HTS SF series - the example of the tape SF12050. Design/methodology/approach: As part of the study smples of tape SF12050 were made. At first made to measure of chemical compsition and compared with manufacturer’s information about that kind of tape. Second step of researcher were research about adhesion of the individual layers of SF12050. After then research was ...

  8. Tape transport mechanism

    A device is provided for transporting, in a stepwise manner, tape between a feed reel and takeup reel. An indexer moves across the normal path of the tape displacing it while the tape on the takeup reel side of the indexer is braked. After displacement, the takeup reel takes up the displaced tape while the tape on the feed reel side of the indexer is braked, providing stepwise tape transport in precise intervals determined by the amount of displacement caused by the indexer

  9. Tape dig selv

    Andersen, Bente Annie Sørine; Neergaard, Christian; Seest, Kristian

    Håndbog med over 50 tape-teknikker, hvor den klassiske hvide sportstape (Dream Tape) og den originale kinesiotape (Kinesio Tex Gold) bruges. Konkrete anvisninger og praktiske råd gives......Håndbog med over 50 tape-teknikker, hvor den klassiske hvide sportstape (Dream Tape) og den originale kinesiotape (Kinesio Tex Gold) bruges. Konkrete anvisninger og praktiske råd gives...

  10. Kinesio Taping technique and Kinesio Tex

    Dan Brăteanu

    2009-12-01

    Full Text Available Kinesio Taping is a method of application of a special tape, adhesive and elastic, which imitates the qualities of the skin.Taping tape is named Kinesio Tex, is made of cotton with acrylic adhesive and it applies directly on skin, on affected musclelength and/or around some joints depending on affection, having the quality of not modifing the biomechanical movement andto facilitate the blood and limphatic circulation of the respective area. It is easy supported on skin/by skin, reduces the painand swelling, lets the skin to breathe, can be worn 3 to 5 days continuously, and a roll can be used for 6 to 10 applications.The method can be used for the majority of affections of the locomotion system and not only; can be used by anyone at anyage. Development of the technique started at the Olympic Games in Seul, 1988, beeing used by athlets. At this moment thetape is recomended and used frequently by the doctors and athlets from Japan, USA, Europe, South America, Australia andother asian countries. Kinesio Taping technique should be applied under the advice of a practician, the efficient results aregoing to be obtained only by corectly appliance in different situations.

  11. Studies of selected properties of high-temperature superconducting tape 2G HTS SF series - the example: tape SF12050

    J. Jędryka

    2013-12-01

    Full Text Available Purpose: In presented paper were characterized selected properties of high-temperature superconducting tape 2G HTS SF series - the example of the tape SF12050. Design/methodology/approach: As part of the study smples of tape SF12050 were made. At first made to measure of chemical compsition and compared with manufacturer’s information about that kind of tape. Second step of researcher were research about adhesion of the individual layers of SF12050. After then research was made about tensile strengtht what is the justification utility, as these tapes are subjected to tension at the time of their formation and winding on the transformer core. Findings: As a result of research obtained information on the chemical composition, scratch resistance, adhesion of coating on the tape and about tensile strength. On the last step studies were conducted about critical currents - Ic. Research limitations/implications: These results allow to identify the suitability of these tapes for use on a wide scale - in particular, the winding of the transformer cores. Originality/value: On the basis of studies have demonstrated applications for which the tape may be used SF12050. Given its properties – scratch resistance and tensile strenght reistance, and information about critical current, was indicated best use of that tape for trnasformers production.

  12. Pembuatan Kerupuk Tape Singkong

    Siagian, Johan

    2012-01-01

    Penelitian ini dilakukan untuk mengetahui pengaruh konsentrasi tape singkong dan konsentrasi baking powder terhadap mutu kerupuk tape singkong. Penelitian ini menggunakan metode rancangan acak lengkap dengan dua faktor, yaitu konsentrasi tape singkong (K) : (20%, 30%, 40 % dan 50%) dengan konsentrasi baking powder (B) : (0,1%, 0,2%, 0,3% dan 0,4%). Parameter yang dianalisa adalah kadar air, kadar abu, kadar lemak, kadar asam lemak bebas, nilai organoleptik (warna, aroma dan rasa...

  13. Short-Term Effects of Kinesio Taping and Cross Taping Application in the Treatment of Latent Upper Trapezius Trigger Points: A Prospective, Single-Blind, Randomized, Sham-Controlled Trial

    Halski, Tomasz; Ptaszkowski, Kuba; Słupska, Lucyna; Paprocka-Borowicz, Małgorzata; Dymarek, Robert; Taradaj, Jakub; Bidzińska, Gabriela; Marczyński, Daniel; Cynarska, Aleksandra; Rosińczuk, Joanna

    2015-01-01

    Kinesio taping (KT) may be a new treatment in patients with myofascial trigger points (MTrPs). A new method available for taping practitioners is cross taping (CT). The main objective was to determine how CT, KT, and medical adhesive tape (sham group) affect the subjective assessment of resting bioelectrical activity and pain of the upper trapezius muscle (UT) in patients with MTrPs. 105 volunteers were recruited to participate. The primary outcome was resting bioelectrical activity of UT mus...

  14. Adhesion in ceramics and magnetic media

    Miyoshi, Kazuhisa

    1989-01-01

    When a ceramic is brought into contact with a metal or a polymeric material such as a magnetic medium, strong bonds form between the materials. For ceramic-to-metal contacts, adhesion and friction are strongly dependent on the ductility of the metals. Hardness of metals plays a much more important role in adhesion and friction than does the surface energy of metals. Adhesion, friction, surface energy, and hardness of a metal are all related to its Young's modulus and shear modulus, which have a marked dependence on the electron configuration of the metal. An increase in shear modulus results in a decrease in area of contact that is greater than the corresponding increase in surface energy (the fond energy) with shear modulus. Consequently, the adhesion and friction decrease with increasing shear modulus. For ceramics in contact with polymeric magnetic tapes, environment is extremely important. For example, a nitrogen environment reduces adhesion and friction when ferrite contacts polymeric tape, whereas a vacuum environment strengthens the ferrite-to-tape adhesion and increases friction. Adhesion and friction are strongly dependent on the particle loading of the tape. An increase in magnetic particle concentration increases the complex modulus of the tape, and a lower real area of contact and lower friction result.

  15. Supplemental TV Taped Problems.

    Squires, Robert G.; Frank, David V.

    1983-01-01

    Videotapes were developed as supplemental material for a course in chemical engineering thermodynamics. Describes the course, videotapes produced (includes list by topics as related to course content), and effectiveness of the tapes. Although no significant improvement in test performance was noted, students indicated they learned material faster…

  16. Tape Placement Head for Applying Thermoplastic Tape to an Object

    Cope, Ralph D. (Inventor); Funck, Steve B. (Inventor); Gruber, Mark B. (Inventor); Lamontia, Mark A. (Inventor); Johnson, Anthony D. (Inventor)

    2008-01-01

    A tape placement head for applying thermoplastic tape to an object includes a heated feeder which guides the tape/tow to a heated zone. The heated zone has a line compactor having a single row of at least one movable heated member. An area compactor is located in the heated zone downstream from the line compactor. The area compactor includes a plurality of rows of movable feet which are extendable toward the tape/tow different distances with respect to each other to conform to the shape of the object. A shim is located between the heated compactors and the tape/tow. A chilled compactor is in a chilled zone downstream from the heated zone. The chilled zone includes a line chilled compactor and an area chilled compactor. A chilled shim is mounted between the chilled compactor and the tape/tow.

  17. Red Tape, Corruption and Finance

    Keith Blackburn; Rashmi Sarmah

    2006-01-01

    We study the effects of red tape and corruption in a model of occupational choice, entry regulation and imperfect capital markets. Red tape is the set of rules and regulations that private agents are obliged to comply with in order to engage in entrepreneurial activity. Corruption is the payment of bribes to public officials for the purpose of circumventing red tape. Capital market imperfections are the asymmetries of information between borrowers and lenders about the returns to entrepreneur...

  18. Multifilamentary niobium tin superconductor tape

    Brisbin, P. H.; Coles, W. D.

    1975-01-01

    In the method proposed for fabricating multifilamentary Nb3Sn tape, filamentary superconducting paths are produced in standard commercial superconductor tape by chemical milling of separator slots through the Nb3Sn layer. The multifilament configuration features a matrix of ten 1.2 mm wide parallel helical superconducting paths along the length of the tape. The paths are spaced 0.4 mm apart. Tapes tested as small pancake coils demonstrated the integrity and continuity of the matrix, and showed that critical current was sustained in direct proportion to retained superconductor.

  19. Stick-slip substructure in rapid tape peeling

    Thoroddsen, Sigurdur T.

    2010-10-15

    The peeling of adhesive tape is known to proceed with a stick-slip mechanism and produces a characteristic ripping sound. The peeling also produces light and when peeled in a vacuum, even X-rays have been observed, whose emissions are correlated with the slip events. Here we present direct imaging of the detachment zone when Scotch tape is peeled off at high speed from a solid surface, revealing a highly regular substructure, during the slip phase. The typical 4-mm-long slip region has a regular substructure of transverse 220 μm wide slip bands, which fracture sideways at speeds over 300 m/s. The fracture tip emits waves into the detached section of the tape at ∼100 m/s, which promotes the sound, so characteristic of this phenomenon.

  20. Abdominal Adhesions

    ... adhesions? Abdominal adhesions can cause intestinal obstruction and female infertility—the inability to become pregnant after a year of trying. Abdominal adhesions can lead to female infertility by preventing fertilized eggs from reaching the uterus, ...

  1. Tape extensometer sensitivity and reliability

    The Spent Fuel Test-Climax is a test of retrievable storage in granite of spent nuclear reactor fuel. The rock has been instrumented to measure temperatures, stress changes, and displacements. Periodic tape extensometer readings provide test drift convergence data. Vertical and horizontal tape readings are made at five locations in each of two 3.4m x 3.4m (11 ft x 11 ft) drifts and six locations in a 4.6m x 6.2m (15 ft x 20.5 ft) drift. The sensitivity of the readings to temperature effects, errors in temperature corrections, change of steel tape, and change of operator has been examined. Calculated corrections for temperature-induced changes in distance range from 0.001 in. to 0.003 in./0C. A tape changeout evidenced both a systematic error apparently due to slight changes in tape registration during punching and to nonidentical location of punched holes in the two tapes and a random error due to variability of reading and punching operations. These errors were corrected by making duplicate measurements for the tapes. Tape readings by the same operator have been repeatable within +-0.001 in. in the smaller drifts and +-0.002 in. in the larger. Different operators have been able to repeat readings to within +-0.004 in. (usually within +-0.002 in.) with generally consistent direction of offset between operators. Corrections of readings and review of plotted data show the tape extensometer to be a reliable instrument for tunnel convergence measurements

  2. Superconducting tape characterization under flexion

    Álvarez, A.; Suárez, P.; Cáceres, D.; Pérez, B.; Cordero, E.; Castaño, A.

    2002-08-01

    Electrotechnical applications of high temperature superconducting materials are limited by the difficulty of constructing classical windings with ceramic materials. While Bi-2223 tape may be a solution, it cannot be bent to radii less than a certain value since its superconducting capacity disappears. We describe an automated measurement system of the characteristics of this tape under flexion. It consists of a device that coils the tape over cylinders with different radii. At the same time, the parameters of its superconducting behaviour (e.g. resistance) are taken and processed. This system was developed at the “Benito Mahedero Laboratory of Superconducting Electrical Applications” in the University of Extremadura.

  3. Unusual Complication of Suprapubic Cystostomy in a Male Patient with Tetraplegia: Traction on Foley Catheter Leading to Extrusion of Foley Balloon from Urinary Bladder and Suprapubic Urinary Fistula – Importance of Securely Anchoring Suprapubic Catheter with Adhesive Tape or BioDerm Tube Holder

    Subramanian Vaidyanathan

    2007-01-01

    Full Text Available Suprapubic cystostomy is recommended to patients with neuropathic bladder to prevent complications of long-term urethral catheter drainage. We present a 50-year-old male patient with tetraplegia who had long-term urethral catheter drainage. Following flexible cystoscopy, he developed a urine leak from the right side of the scrotum. Suprapubic cystostomy was performed. After suprapubic cystostomy, the urinary fistula healed completely. A follow-up cystourethrogram confirmed an intact urethra with no leak of contrast. Six weeks later, this patient presented with a hole below the suprapubic cystostomy through which a small amount of urine was leaking. A keyhole dressing had been applied around the suprapubic catheter and the catheter was hanging loosely, thus permitting traction on the catheter, especially when the urine bag was full. Computerised tomography of the pelvis showed extrusion of the Foley balloon from the urinary bladder, but the tip of the catheter was still located within the bladder. The extruded catheter was removed and a Foley catheter was inserted, ensuring that the balloon was inflated within the urinary bladder. The suprapubic catheter was secured firmly to the anterior abdominal wall with a BioDerm Tube Holder, thus preventing any traction on the catheter or Foley balloon. The urine leak through the hole below the suprapubic cystostomy stopped and the sinus healed. This case illustrates the need to anchor the suprapubic catheter securely to the anterior abdominal wall with adhesive tape or BioDerm Tube Holder to prevent traction and consequent displacement of the catheter or Foley balloon.

  4. Dynamic observation of repigmentation in vitiligo lesions after narrow-band ultraviolet B phototherapy by using an adhesive tape stripping technique%胶带粘贴法观察窄谱中波紫外线治疗后白癜风皮损的复色

    汪凯凡; 汪宇; 陆洪光

    2012-01-01

    目的 探讨窄谱中波紫外线(NB-UVB)治疗前后照射区浅表角质层细胞中黑素颗粒的变化.方法 使用胶带粘贴法对接受NB-UVB治疗的白癜风皮损进行浅表角质层细胞取样,银氨染色后观察细胞中黑素颗粒形态、分布、颜色的变化,使用Image-Pro Plus6.0显微图像分析软件计算细胞内黑素颗粒面积百分比,使用SPSS11.5对数据进行统计分析.结果 治疗前白斑区仍残存少量含黑素颗粒的浅表角质层细胞.治疗前黑素颗粒面积百分比为(5.31±4.12)%,治疗10次后为(6.24±2.65)%,治疗20次后为(10.14±5.73)%,治疗30次后为(13.05±6.17)%,方差分析显示,治疗前、治疗10次、治疗20次、治疗30次后黑素颗粒面积百分比差异有统计学意义(F=4.334,P< 0.05),经两两比较分析,治疗30次后细胞内黑素颗粒面积百分比相对治疗前及治疗10次后均增高(P值均< 0.01).皮损复色区新生黑素颗粒染色后形态、颜色与治疗前周边正常肤色区有所不同.结论 用浅表角质层细胞胶带粘贴法可以客观评估NBUVB治疗白癜风的复色过程.%Objective To observe the changes of melanin granules in superficial corneocytes in vitiligo lesions after irradiation with narrow-band ultraviolet B (NB-UVB) by using an adhesive tape stripping technique.Methods Vitiligo lesions were selected from 6 patients and irradiated with NB-UVB every other day for 31 sessions.Superficial corneocytes were obtained by an adhesive tape stripping technique from the vitiligo lesions and perilesional normal skin before every treatment.The morphology,distribution and color of melanin granules were observed after Masson-Fontana silver staining.The percentage of area occupied by melanin granules in superficial corneocytes were calculated by using the Image-Pro Plus 6.0 software.Statistical analysis was conducted by the SPSS11.5 software.Results There were still a few superficial corneocytes containing melanin granules

  5. Less red tape; Weniger Bremskloetze

    Ristau, Oliver

    2011-07-01

    Since July 2009, the PV Legal initiative funded by the European Commission has brought greater transparency and less red tape to photovoltaic projects in Europe. The remaining obstacles will be resolved by the new initiative, PV Grid.

  6. Tape Storage and CRC Protection

    Ha, Karel

    2014-01-01

    Over 100 Petabytes of data is stored on several kind of physical support, namely disks and tapes. Data on any physical support or traveling on a data link (network, fibre channel...) can be subject to silent data corruption. A possible improvement is introducing end-to-end data integrity from the filesystem down to the tape layer. For the tape back-end it can be done by using Logical Block Protection, which computes and compares CRC checksum of every single block of data. During my work, I improved on-the-fly CRC calculation for the tape storage system, which was achieved by introducing a multithreaded implementation - a technique applicable to arbitrary CRC algorithm. Finally, I per...

  7. How to Tape an Ankle

    ... to Tape a Toe How to Stretch Your Ankle After A Sprain How to Strengthen Your Ankle After a Sprain How to Prepare for Orthopaedic Foot or Ankle Surgery: Part III How to Prepare for Orthopaedic ...

  8. Grit Blasting Scribes Coats For Tests Of Adhesion

    Novak, Howard L.

    1991-01-01

    Grit-blasting technique for cutting line gaps in paints, hard coats, lubricants, and other coating films undergoing development. Line gaps cut in chevron patterns, groups of parallel lines, or other prescribed patterns, in preparation for testing adhesions of coats to substrates by attempting to peel patterned areas off with adhesive tapes. Damage to substrate reduced.

  9. Standard Practice for Sampling for Particulate Contamination by Tape Lift

    American Society for Testing and Materials. Philadelphia

    2006-01-01

    1.1 This practice covers procedures for sampling surfaces to determine the presence of particulate contamination, 5 m and larger. The practice consists of the application of a pressure-sensitive tape to the surface followed by the removal of particulate contamination with the removal of the tape. The tape with the adhering particles is then mounted on counting slides. Counting and measuring of particles is done by standard techniques. 1.2 This practice describes the materials and equipment required to perform sampling of surfaces for particle counting and sizing. 1.3 The criteria for acceptance or rejection of a part for conformance to surface cleanliness level requirements shall be determined by the user and are not included in this practice. 1.4 This practice is for use on surfaces that are not damaged by the application of adhesive tape. The use of this practice on any surface of any material not previously tested or for which the susceptibility to damage is unknown is not recommended. In general, metal...

  10. Marine Bioinspired Underwater Contact Adhesion.

    Clancy, Sean K; Sodano, Antonio; Cunningham, Dylan J; Huang, Sharon S; Zalicki, Piotr J; Shin, Seunghan; Ahn, B Kollbe

    2016-05-01

    Marine mussels and barnacles are sessile biofouling organisms that adhere to a number of surfaces in wet environments and maintain remarkably strong bonds. Previous synthetic approaches to mimic biological wet adhesive properties have focused mainly on the catechol moiety, present in mussel foot proteins (mfps), and especially rich in the interfacial mfps, for example, mfp-3 and -5, found at the interface between the mussel plaque and substrate. Barnacles, however, do not use Dopa for their wet adhesion, but are instead rich in noncatecholic aromatic residues. Due to this anomaly, we were intrigued to study the initial contact adhesion properties of copolymerized acrylate films containing the key functionalities of barnacle cement proteins and interfacial mfps, for example, aromatic (catecholic or noncatecholic), cationic, anionic, and nonpolar residues. The initial wet contact adhesion of the copolymers was measured using a probe tack testing apparatus with a flat-punch contact geometry. The wet contact adhesion of an optimized, bioinspired copolymer film was ∼15.0 N/cm(2) in deionized water and ∼9.0 N/cm(2) in artificial seawater, up to 150 times greater than commercial pressure-sensitive adhesive (PSA) tapes (∼0.1 N/cm(2)). Furthermore, maximum wet contact adhesion was obtained at ∼pH 7, suggesting viability for biomedical applications. PMID:27046671

  11. Adhesive Categories

    Lack, Stephen; Sobocinski, Pawel

    2003-01-01

    We introduce adhesive categories, which are categories with structure ensuring that pushouts along monomorphisms are well-behaved. Many types of graphical structures used in computer science are shown to be examples of adhesive categories. Double-pushout graph rewriting generalises well to...... rewriting on arbitrary adhesive categories....

  12. Adhesive Categories

    Lack, Stephen; Sobocinski, Pawel

    2004-01-01

    We introduce adhesive categories, which are categories with structure ensuring that pushouts along monomorphisms are well-behaved. Many types of graphical structures used in computer science are shown to be examples of adhesive categories. Double-pushout graph rewriting generalises well to...... rewriting on arbitrary adhesive categories....

  13. Tape write-efficiency improvements in CASTOR

    The CERN Advanced STORage manager (CASTOR) is used to archive to tape the physics data of past and present physics experiments. For reasons of physical storage space, all of the tape resident data in CASTOR are repacked onto higher density tapes approximately every two years. Improving the performance of writing files smaller than 2GB to tape is essential in order to keep the time needed to repack all of the tape resident data within a period of no more than 1 year. This paper reports on the solution to writing efficiently to tape that is currently in its early deployment phases at CERN.

  14. Tape edge study in a linear tape drive with single-flanged guides

    Goldade, A.V.; Bhushan, Bharat E-mail: bhushan.2@osu.edu

    2004-05-01

    Improved tape guiding and tape dimensional stability are essential for magnetic tape linear recoding formats to take advantage of vastly increased track density and thereby achieve higher storage capacities. Tape guiding is dependent on numerous parameters, such as type of the guides and tape path geometry, quality of virgin tape edge, drive operating parameters (e.g., tape speed and tape tension), mechanical properties of the tape, and tape geometry (e.g., cupping and curvature). The objective of the present study is to evaluate guiding and tribological performance of single-flanged guides with porous air bearings in a linear tape drive. A comparison of guiding performance of the dual flanged stationary guides and single-flanged guides with porous air bearings is performed. The effect of tape path geometry, drive operating conditions (speed and tension) and tape edge quality of factory-slit tapes on tape guiding are evaluated during short-term tests. A lateral force measurement technique is used to measure the force exerted by the tape edge on the guide flange. A technique for the lateral tape motion measurement is used to study the effect of continuous sliding on tape guiding. Wear tests up to 5000 cycles are conducted and coefficient of friction and lateral tape motion are monitored to study the effect of drive operating conditions (speed and tension), edge quality of factory-slit tapes and tape thickness on tape guiding. Optical microscopy, atomic force microscopy and scanning electron microscopy are employed to study and quantify the quality of tape edge.

  15. Superconducting flat tape cable magnet

    Takayasu, Makoto

    2015-08-11

    A method for winding a coil magnet with the stacked tape cables, and a coil so wound. The winding process is controlled and various shape coils can be wound by twisting about the longitudinal axis of the cable and bending following the easy bend direction during winding, so that sharp local bending can be obtained by adjusting the twist pitch. Stack-tape cable is twisted while being wound, instead of being twisted in a straight configuration and then wound. In certain embodiments, the straight length should be half of the cable twist-pitch or a multiple of it.

  16. Urinary incontinence - tension-free vaginal tape

    ... small surgical cut (incision) is made inside your vagina. Two small cuts are made in your belly ... tape is passed through the cut inside the vagina. The tape is then positioned under your urethra. ...

  17. EROS to universal tape conversion processor

    Obrien, S. O. (Principal Investigator)

    1980-01-01

    The function of the EROS processor is to allow a user to select a specific area from a full frame LANDSAT image which is written on tape in the EROS format. The area of interest is read from the EROS formatted tape and converted to the JSC Universal format and written onto another tape. This tape can then be read by the IMDACS processing system and normal analysis can be performed.

  18. Taping in sports: a brief update

    2012-01-01

    Athletic taping is an adjunct mechanism adopted as a preventive measure of injuries or post-injury rehabilitation and prophylaxis. The tape is chosen properly so that it could be able to properly strap the body parts, e.g., ankle, wrist, finger, etc. There are certain principles, guidelines, rules and regulations based on which taping has to be done. Besides injury prevention, taping is also used in sports as conservative management of pain, biomechanical effects, effects on balance, posture ...

  19. Mary Tape, An Outspoken Woman. Primary Source.

    OAH Magazine of History, 2001

    2001-01-01

    Provides reproductions of primary documents pertaining to Mary Tape, a Chinese immigrant in San Francisco who fought to have her children admitted to public school, including a letter from Mary Tape to the Board of Education and an article about Mary Tape that appeared in the "Morning Call" (23 November 1892). (CMK)

  20. The Effect of the Kinesio Taping and Spiral Taping on Menstrual Pain and Premenstrual Syndrome

    Lim, Chaegil; Park, Yongnam; Bae, Youngsook

    2013-01-01

    [Purpose] The purpose of this study was to compare the effects of Kinesio taping and spiral taping on menstrual pain and premenstrual syndrome, to investigate the efficacy of the two types of taping as methods for alleviating menstrual pain and premenstrual syndrome. [Subjects and Methods] The subjects of this study were 34 unmarried women. The subjects were randomly divided into a Kinesio taping group, a spiral taping group and a control group. Subjects with a regular menstrual cycle underwe...

  1. Testing and Analysis of the Peeling of Medical Adhesives From Human Skin

    Karwoski, Alicia Corrine

    2003-01-01

    The analysis of peeling tape or a bandage from skin is a challenging problem. Skin is a very complex material made of many layers with anisotropic material properties. Adhesives that bond tapes or patches to skin must attach to skin through moisture and skin movement, but then be removed with little skin trauma. A computer model of peeling from skin apparently has not been developed previously. With experiments and the application of mechanics, research was conducted to analyze adhesion t...

  2. HTS twisted stacked-tape cable conductor

    The feasibility of high field magnet applications of the twisted stacked-tape cabling method with 2G YBCO tapes has been investigated. An analysis of torsional twist strains of a thin HTS tape has been carried out taking into account the internal shortening compressive strains accompanied with the lengthening tensile strains due to the torsional twist. The model is benchmarked against experimental tests using YBCO tapes. The critical current degradation and current distribution of a four-tape conductor was evaluated by taking account of the twist strain, the self-field and the termination resistances. The critical current degradation for the tested YBCO cables can be explained by the perpendicular self-field effect. It is shown that the critical current of a twisted stacked-tape conductor with a four-tape cable does not degrade with a twist pitch length as short as 120 mm. Current distribution among tapes and hysteresis losses are also investigated. A compact joint termination method for a 2G YBCO tape cable has been developed. The twisted stacked-tape conductor method may be an attractive means for the fabrication of highly compact, high current cables from multiple flat HTS tapes.

  3. Pinning Mechanisms in YBCO Tapes

    Spera, Marcello; Ballarino, Amalia

    2015-01-01

    In this thesis work, a study on flux pinning mechanisms of commercial YBCO tapes is presented. This study has been performed via critical current characterization using transport (via direct I-V curves) and magnetization (via a Vibrating Sample Magnetometer) measurements. The latter ones turned out to be better concerning the comprehension of the pinning landscape of the provided samples, as a wider range of magnetic fields and temperatures is available for those measurements in the setup I used. The comparison of the experimental data with existing theoretical models allowed me to draw a picture of the pinning mechanisms underlying in each sample, and they turned out to be quite different one another. Moreover, for high-performance research tapes, another interesting feature has been found: the counterplay between the self-field critical current and the in-field one. Very well engineered artificial pinning structures limit the self-field critical current density due to the hi...

  4. Surgical adhesives

    I. A. THOMAZINI-SANTOS

    2001-12-01

    Full Text Available The authors have performed a literature review of surgical adhesives, such as cyanoacrylate, collagen gelatin, and fibrin glue. They have included different types of commercial and non-commercial fibrin sealants and have reported on the different components in these adhesives, such as fibrinogen, cryoprecipitate, bovine thrombin, and thrombin-like fraction of snake venom.

  5. Tongue adhesion in the horned frog Ceratophrys sp.

    Kleinteich, Thomas; Gorb, Stanislav N.

    2014-06-01

    Frogs are well-known to capture elusive prey with their protrusible and adhesive tongues. However, the adhesive performance of frog tongues and the mechanism of the contact formation with the prey item remain unknown. Here we measured for the first time adhesive forces and tongue contact areas in living individuals of a horned frog (Ceratophrys sp.) against glass. We found that Ceratophrys sp. generates adhesive forces well beyond its own body weight. Surprisingly, we found that the tongues adhered stronger in feeding trials in which the coverage of the tongue contact area with mucus was relatively low. Thus, besides the presence of mucus, other features of the frog tongue (surface profile, material properties) are important to generate sufficient adhesive forces. Overall, the experimental data shows that frog tongues can be best compared to pressure sensitive adhesives (PSAs) that are of common technical use as adhesive tapes or labels.

  6. Programmes associated with WIMS library tapes

    A description of, and details of data preparation for the programmes WIMLIB, WIMCON, WINGAL, WIMRES and WIMMIX are given. All these are KDF9 programs with the exception of WIMGAL which is available both on KDF9 tape writing program, and may be used either to write a completely new library tape or to produce a revised version of an existing WIMS library tape. WIMCON takes an existing library tape together with appropriate condensation spectra in order to produce a condensed library tape in fewer energy groups. WIMGAL, WIMRES and WIMMIX are programs for preparing data for WIMLIB from GALAXY ITS2 tapes from resonance parameters, and by mixing other WIMLIB data, respectively. (U.K.)

  7. Adhesive properties of PTFE modified by DC discharge

    It is shown that low-pressure DC discharge treatment of PTFE films at both the anode and cathode leads to substantial enhancement of the contact properties of the polymer surface and alters considerably the adhesion properties of PTFE film surface. A procedure is developed for determination the adhesion characteristics of the modified surface of plasma treated thin polymer films using Scotch® 810 adhesive tape. The procedure comprises of a study of the surface coating created by means of physical vapor deposition of an aluminum layer with thickness of the order of 100 nm, an adhesive joint of the film with Scotch® 810 tape, and T-peel testing of the specimen. Using this procedure, the peel resistance of the initial and the modified PTFE film on both the anode and the cathode in DC discharge is measured.

  8. Roles of Poly(propylene Glycol) During Solvent-Based Lamination of Ceramic Green Tapes

    Suppakarn, Nitinat; Ishida, Hatsuo; Cawley, James D.; Levine, Stanley R. (Technical Monitor)

    2000-01-01

    Solvent lamination for alumina green tapes is readily accomplished using a mixture of ethanol, toluene and poly(propylene glycol). After lamination, the PPG is clearly present as a discrete film at the interface between the laminated tapes. This condition, however, does not generate delamination during firing. Systematic sets of experiments are undertaken to determine the role of PPG in the lamination process and, specifically, the mechanism by which it is redistributed during subsequent processing. PPG slowly diffuses through the organic binder film at room temperature. The PPG diffusion rapidly increases as temperature is increased to 80 C. The key to the efficiency of adhesives during green-tape lamination is mutual solubility of the nonvolatile component of the glue and the base polymeric binder.

  9. Placement suitability criteria of composite tape for mould surface in automated tape placement

    Zhang Peng; Sun Ronglei; Zhao Xueying; Hu Lingjin

    2015-01-01

    Automated tape placement is an important automated process used for fabrication of large composite structures in aeronautical industry. The carbon fiber composite parts realized with this process tend to replace the aluminum parts produced by high-speed machining. It is difficult to determine the appropriate width of the composite tape in automated tape placement. Wrinkling will appear in the tape if it does not suit for the mould surface. Thus, this paper deals with establishing placement su...

  10. Design and fabrication of polymer based dry adhesives inspired by the gecko adhesive system

    Jin, Kejia

    There has been significant interest in developing dry adhesives mimicking the gecko adhesive system, which offers several advantages compared to conventional pressure sensitive adhesives. Specifically, gecko adhesive pads have anisotropic adhesion properties: the adhesive pads (spatulae) stick strongly when sheared in one direction but are non-adherent when sheared in the opposite direction. This anisotropy property is attributed to the complex topography of the array of fine tilted and curved columnar structures (setae) that bear the spatulae. In this thesis, easy, scalable methods, relying on conventional and unconventional techniques are presented to incorporate tilt in the fabrication of synthetic polymer-based dry adhesives mimicking the gecko adhesive system, which provide anisotropic adhesion properties. In the first part of the study, the anisotropic adhesion and friction properties of samples with various tilt angles to test the validity of a nanoscale tape-peeling model of spatular function are measured. Consistent with the Peel Zone model, samples with lower tilt angles yielded larger adhesion forces. Contact mechanics of the synthetic array were highly anisotropic, consistent with the frictional adhesion model and gecko-like. Based on the original design, a new design of gecko-like dry adhesives was developed which showed superior tribological properties and furthermore showed anisotropic adhesive properties without the need for tilt in the structures. These adhesives can be used to reversibly suspend weights from vertical surfaces (e.g., walls) and, for the first time to our knowledge, horizontal surfaces (e.g., ceilings) by simultaneously and judiciously activating anisotropic friction and adhesion forces. Furthermore, adhesion properties between artificial gecko-inspired dry adhesives and rough substrates with varying roughness are studied. The results suggest that both adhesion and friction forces on a rough substrate depends significantly on the

  11. Performance Comparison of Twisted Tape and Screw Tape Inserts in Square Duct

    Suhas Vinaya Patil

    2011-01-01

    Full Text Available Effects of insertion of a full length twisted tape and full length screw tape insert in a concentric double pipe heat exchanger ,square duct inner, and circular annulus on heat transfer and pressure drop characteristics were experimentally studied. Experiments were carried out under constant wall temperature using water as working fluid. Stainless steel twisted tape and screw tape inserts have equal twist ratio(y=4.0.Cold water flows through inner square duct, and hot water flows through circular annulus, in counter current fashion. Screw tape inserts found better over twisted tape from thermal performance point of view. Results of the Isothermal friction factor for the present twisted tape and helical screw-tape are higher than those for the plain duct around 7.7 times and 14 times respectively. Experiments were conducted well within laminar region. Over entire investigated laminar range, mean Nusselt number for the present twisted tape and helical screw tape are higher than those for the plain duct around 2.85 times and 5.3 times respectively. Further, Thermal performance ratio of twisted tape and screw tape inserts were found 2.81 and 3.52 times the plain square duct on constant pumping power respectively.

  12. RIGID TAPE VERSUS KINESIO TAPE ON SCAPULAR ROTATION AND FORWARD HEAD ANGLE IN SUBACROMIAL IMPINGEMENT SYNDROME

    Eman A. Embaby

    2016-02-01

    Full Text Available Background: Rigid and kinesio taping is commonly used in the rehabilitation and prevention of subacromial impingement syndrome (SIS. It is proposed to have positive effects on shoulder function and scapular kinematics. However, there is a paucity of literature regarding the effectiveness of rigid versus elastic taping on scapular upward rotation and forward head posture (FHP, which is commonly adopted in SIS. Purpose: This study was designed to investigate the effect of taping with postural correction on the scapular kinematics and forward head angle (FHA in patients with SIS when two different taping materials are used: rigid versus a kinesio tape application. Methods: Eleven female patients with SIS participated in this study. Their age, weight and height ranged from 30 to 60 years, 56 to 90 kg and 155 to 175 cm, respectively. The participants were randomly assigned to Group I (Kinesio tape (KT, n=6 and Group II (Rigid tape (RT, n=5. Thoracic and scapular taping with posture correction was applied to both groups. Scapular upward rotation at 0°, 60°, 90° and 120° and FHA were measured before and immediately after the taping. Results: Both taping materials significantly increased the scapular upward rotation at 90° and 120° shoulder elevation. Additionally, there was a significant decrease in the FHA in the RT group. Conclusion: Both tapings are effective in restoring scapular kinematics. The corrective effect of rigid taping on FHA is substantiated.

  13. EFFECT OF KINESIO TAPING VERSUS ATHLETIC TAPING ON PAIN AND MUSCLE PERFORMANCE IN LATERAL EPICONDYLALGIA

    Rashi Goel

    2015-02-01

    Full Text Available Lateral epicondylalgia is a degenerative musculoskeletal pain state characterised by pain over the lateral humeral epicondyle resulting in absenteeism from work and daily living activities. It is most prevalent in jobs requiring repetitive manual activities of the upper extremity. Literature describes different treatment options for lateral Epicondylalgia but there is no consensus about the most efficacious intervention strategy. Taping (athletic/kinesio has been used successfully in various musculoskeletal conditions with successful results. To date, no study has investigated the effect of kinesio taping in lateral epicondylalgia. The purpose of the study was to investigate and compare the effects of kinesio taping and athletic taping on pain and muscle performance in patients with lateral epicondylalgia. 16 patients (9 males, 7 females within age group of 18 – 50 years participated in the study. It was a cross over design. VAS, digital al goniometer and Jamar Dynamometer were used to quantify pain, pressure pain threshold and pain free grip strength. These were evaluated pre taping, immediately after taping and after 30 minutes of each taping application selected randomly for two consecutive days. Repeated measures ANOVA and percentage change were used to examine differences in outcome measures. Bonferroni correction was applied to correct for repeated testing. The results showed significant pain reduction and increase in grip strength after both the taping techniques but no statistically significant differences for any outcome measure between the two taping techniques (p>0.05. Also the immediate pain reduction was more after athletic taping (21% than kinesio taping (10% that corresponded to the immediate increase in pain free grip strength more after athletic taping (14.5% than kinesio taping (9.7%. 30 minutes later both the outcome measures gave similar percentage changes . The present study concludes with the recommendation of both

  14. Effects of ankle eversion taping using kinesiology tape in a patient with ankle inversion sprain

    Lee, Sun-Min; Lee, Jung-Hoon

    2016-01-01

    [Purpose] The aim of this study was to report the effects of ankle eversion taping using kinesiology tape on ankle inversion sprain. [Subject] The subject was a 21-year-old woman with Grade 2 ankle inversion sprain. [Methods] Ankle eversion taping was applied to the sprained left ankle using kinesiology tape for 4 weeks (average, 15 h/day). [Results] Ankle instability and pain were reduced, and functional dynamic balance was improved after ankle eversion taping for 4 weeks. The Cumberland Ank...

  15. Multiple Generations on Video Tape Recorders.

    Wiens, Jacob H.

    Helical scan video tape recorders were tested for their dubbing characteristics in order to make selection data available to media personnel. The equipment, two recorders of each type tested, was submitted by the manufacturers. The test was designed to produce quality evaluations for three generations of a single tape, thereby encompassing all…

  16. High-Throughput Method of Whole-Brain Sectioning, Using the Tape-Transfer Technique

    Pinskiy, Vadim; Jones, Jamie; Tolpygo, Alexander S.; Franciotti, Neil; Weber, Kevin; Mitra, Partha P.

    2015-01-01

    Cryostat sectioning is a popular but labor-intensive method for preparing histological brain sections. We have developed a modification of the commercially available CryoJane tape collection method that significantly improves the ease of collection and the final quality of the tissue sections. The key modification involves an array of UVLEDs to achieve uniform polymerization of the glass slide and robust adhesion between the section and slide. This report presents system components and detail...

  17. Interactions at the head-tape interface of a linear tape system

    Many of the recent improvements in the capacity of data cartridge systems have been achieved through the use of narrower tracks, higher linear densities and continuous servo tracking with multi-channel heads. These changes have produced new tribological problems at the head/tape interface. It is crucial that the tribology of such systems is understood and this will continue since increasing storage capacities and faster transfer rates are constantly being sought. Chemical changes in the surface of single and dual layer MP tape have been correlated to signal performance. An accelerated tape tester, consisting of a custom made cycler (loop tester), was used to ascertain if results could be produced that were representative of a real tape drive system. A second set of experiments used a modified tape drive (Georgens cycler), which allowed the effects of the tape transport system on the tape surface to be studied. To isolate any effects on the tape surface due to the head/tape interface, read/write heads were not fitted to the cycler. Two further sets of experiments were conducted which included a head in the tape path. This allowed the effects of the head/tape interface on the physical and chemical properties of the head and tape surfaces to be investigated. It was during the final set of experiments that the effect on the head/tape interface, of an energised MR element, was investigated. The effect of operating each cycler at extreme relative humidity and temperature was investigated through the use of an environmental chamber. Extensive use was made of surface specific analytical techniques such as XPS, AFM, AES and SEM to study the physical and chemical changes that occur at the head/tape interface. Results showed that cycling improved the signal performance of all the tapes tested. The data cartridge drive belt had an effect on the chemical properties of the tape surface on which it was in contact. Also binder degradation occurred for each tape and appeared to be

  18. White House Tapes of the Nixon Administration, 1971 to 1973

    National Archives and Records Administration — This dataset provides information about the Nixon Administration's White House Tapes. The White House Tapes contain sound recordings of President Richard Nixon's...

  19. Bacterial Adhesion & Blocking Bacterial Adhesion

    Vejborg, Rebecca Munk

    2008-01-01

    parameters, which influence the transition from a planktonic lifestyle to a sessile lifestyle, have been studied. Protein conditioning film formation was found to influence bacterial adhesion and subsequent biofilm formation considerable, and an aqueous extract of fish muscle tissue was shown to...... tract to the microbial flocs in waste water treatment facilities. Microbial biofilms may however also cause a wide range of industrial and medical problems, and have been implicated in a wide range of persistent infectious diseases, including implantassociated microbial infections. Bacterial adhesion is...... the first committing step in biofilm formation, and has therefore been intensely scrutinized. Much however, still remains elusive. Bacterial adhesion is a highly complex process, which is influenced by a variety of factors. In this thesis, a range of physico-chemical, molecular and environmental...

  20. Pre-tension generates strongly reversible adhesion of a spatula pad on substrate

    Chen, Bin; Wu, Peidong; Gao, Huajian

    2008-01-01

    Motivated by recent studies on reversible adhesion mechanisms of geckos and insects, we investigate the effect of pre-tension on the orientation-dependent adhesion strength of an elastic tape adhering on a substrate. Our analysis shows that the pre-tension can significantly increase the peel-off force at small peeling angles while decreasing it at large peeling angles, leading to a strongly reversible adhesion. More interestingly, we find that there exists a critical value of pre-tension beyo...

  1. Kinesio Taping Fundamentals for the Equine Athlete.

    Molle, Sybille

    2016-04-01

    The Kinesio taping method was developed in Japan for use in humans in 1979. The use of complementary therapies is becoming common in equine athletes and the discovery of Kinesio taping potential brought it into the animal world. Kinesio taping can be used to treat a wide range of clinical conditions, from tendon injuries to neurologic disorders and from muscle contractures to postural insufficiencies. Its use in veterinary medicine is promising, but relies heavily on evidence-based clinical reports. Further scientific research is needed to fully understand the real effectiveness of application. PMID:26898963

  2. Ankle inversion taping using kinesiology tape for treating medial ankle sprain in an amateur soccer player.

    Lee, Sun-Min; Lee, Jung-Hoon

    2015-07-01

    [Purpose] The purpose of this study was to report the effects of ankle inversion taping using kinesiology tape in a patient with a medial ankle sprain. [Subject] A 28-year-old amateur soccer player suffered a Grade 2 medial ankle sprain during a match. [Methods] Ankle inversion taping was applied to the sprained ankle every day for 2 months. [Results] His symptoms were reduced after ankle inversion taping application for 2 months. The self-reported function score, the reach distances in the Star Excursion Balance Test, and the weight-bearing ankle dorsiflexion were increased. [Conclusion] This study showed that ankle inversion taping using kinesiology tape may be an effective therapy for a patient with a medial ankle sprain. PMID:26311991

  3. Effects of ankle eversion taping using kinesiology tape in a patient with ankle inversion sprain.

    Lee, Sun-Min; Lee, Jung-Hoon

    2016-01-01

    [Purpose] The aim of this study was to report the effects of ankle eversion taping using kinesiology tape on ankle inversion sprain. [Subject] The subject was a 21-year-old woman with Grade 2 ankle inversion sprain. [Methods] Ankle eversion taping was applied to the sprained left ankle using kinesiology tape for 4 weeks (average, 15 h/day). [Results] Ankle instability and pain were reduced, and functional dynamic balance was improved after ankle eversion taping for 4 weeks. The Cumberland Ankle Instability Tool score and reach distances in the Y-Balance and lunge tests were increased. [Conclusion] Repeated ankle eversion taping may be an effective treatment intervention for ankle inversion sprain. PMID:27064668

  4. RIGID TAPE VERSUS KINESIO TAPE ON SCAPULAR ROTATION AND FORWARD HEAD ANGLE IN SUBACROMIAL IMPINGEMENT SYNDROME

    Eman A. Embaby; Eman M.A. Abdalgwad

    2016-01-01

    Background: Rigid and kinesio taping is commonly used in the rehabilitation and prevention of subacromial impingement syndrome (SIS). It is proposed to have positive effects on shoulder function and scapular kinematics. However, there is a paucity of literature regarding the effectiveness of rigid versus elastic taping on scapular upward rotation and forward head posture (FHP), which is commonly adopted in SIS. Purpose: This study was designed to investigate the effect of taping with post...

  5. Thermally Conductive Tape Based on Carbon Nanotube Arrays

    Kashani, Ali

    2011-01-01

    To increase contact conductance between two mating surfaces, a conductive tape has been developed by growing dense arrays of carbon nanotubes (CNTs, graphite layers folded into cylinders) on both sides of a thermally conductive metallic foil. When the two mating surfaces are brought into contact with the conductive tape in between, the CNT arrays will adhere to the mating surface. The van der Waals force between the contacting tubes and the mating surface provides adhesion between the two mating surfaces. Even though the thermal contact conductance of a single tube-to-tube contact is small, the tremendous amount of CNTs on the surface leads to a very large overall contact conductance. Interface contact thermal resistance rises from the microroughness and the macroscopic non-planar quality of mating surfaces. When two surfaces come into contact with each other, the actual contact area may be much less than the total area of the surfaces. The real area of contact depends on the load, the surface roughness, and the elastic and inelastic properties of the surface. This issue is even more important at cryogenic temperatures, where materials become hard and brittle and vacuum is used, which prevents any gas conduction through the interstitial region. A typical approach to increase thermal contact conductance is to use thermally conducting epoxies or greases, which are not always compatible with vacuum conditions. In addition, the thermal conductivities of these compounds are often relatively low. The CNTs used in this approach can be metallic or semiconducting, depending on the folding angle and diameter. The electrical resistivity of multiwalled carbon nanotubes (MWCNTs) has been reported. MWCNTs can pass a current density and remain stable at high temperatures in air. The thermal conductivity of a MWCNT at room temperature is measured to be approximately 3,000 W/m-K, which is much larger than that of diamond. At room temperature, the thermal conductance of a 0.3 sq cm

  6. Superconducting properties of multilayered Ag/Bi(Pb)-2223 tapes prepared using pretextured monolayered tapes

    Multilayered Ag/Bi(Pb)-2223 tapes with high critical current densities (Jc) have been fabricated using partially heat treated, textured monolayered tapes. Cut sections of the monolayered tapes have been stacked one over the other and folded together using high-purity silver foil and further rolled and heat treated to obtain multilayered tapes of different thickness with an HTS layer thickness varying from 9 to 20 μm. A comparison of the superconducting properties of the multilayered tapes with those of monolayered tapes prepared under identical heat treatment conditions shows that the Jc(multi)/Jc(mono) ratio at 77 K is as high as 0.57. The ratio is found to decrease with a decrease in the HTS core thickness of the multilayered tapes. XRD studies of 'banana peeled' samples show that the monolayered tapes at the folding stage acquire a good degree of texturing. The relatively high value of the Jc(multi)/Jc(mono) ratio obtained in the present case compared with those reported by the existing techniques is attributed to the use of pretextured monolayered tapes. (author)

  7. Effects of Kinesio taping and Mcconnell taping on balance and walking speed of hemiplegia patients

    Choi, Yong-Kyu; Park, Young-Han; Lee, Jung-Ho

    2016-01-01

    [Purpose] The aim of this study was to evaluate the overlap effect of the PNF following the application of Kinesio taping and the McConnell taping, and also the impact of the taping application method on the balance and walking speed of the patients with stroke. [Subjects and Methods] Thirty-six patients who were diagnosed with hemiplegia due to stroke were selected as subjects of this study. They were randomly and evenly divided into experiment group 1 (Kinesio taping group), experiment grou...

  8. Ankle inversion taping using kinesiology tape for treating medial ankle sprain in an amateur soccer player

    Lee, Sun-Min; Lee, Jung-Hoon

    2015-01-01

    [Purpose] The purpose of this study was to report the effects of ankle inversion taping using kinesiology tape in a patient with a medial ankle sprain. [Subject] A 28-year-old amateur soccer player suffered a Grade 2 medial ankle sprain during a match. [Methods] Ankle inversion taping was applied to the sprained ankle every day for 2 months. [Results] His symptoms were reduced after ankle inversion taping application for 2 months. The self-reported function score, the reach distances in the S...

  9. Aligned Carbon Nanotube Tape for Sensor Applications

    Tucker, Dennis S.

    2013-01-01

    For this effort, will concentrate on three applications: Vibration Gyroscope utilizes piezoelectric properties of the tape and Coriolis effect Accelerometer utilizes the piezoresistive property Strain Gauge utilizes piezoresistive property Accelerometer and Strain Gauge can also utilize piezoelectric effect Test piezoelectric properties using facilities at the Microfabrication Laboratory (AMRDEC) . Enhance piezoelectric effect using polyvinylidine fluoride and P(VDF ]TrFE) which is readily polarizable .Spray matrix solution while winding fiber; Sandwich of CNT tape and PVDF film (DOE .Two Level) . Construct and test prototype vibration gyroscope . Construct and test prototype accelerometer using cantilever design . Test strain sensitivity of CNT tape against industrial strain gauge . Embed CNT tape in composite samples as well as on surface and test to failure (4 ]point bend) A piezoelectric device exhibits an electrical response from a mechanical applied stress. . A piezoelectric device has both capacitance and resistance properties in which by applying an electric field from a waveform will exert a mechanical stress that can be monitored for a response. . The typical waveform applied is a sinusoidal waveform of a defined voltage for a defined period. The defined voltage is driven from 0 volts to the positive defined volts then back to 0 and driven to negative defined volts then back to 0. . Example. Vmax set to 10V and period set to 10 ms. . Voltage will start at zero, go to 10 volts, return to zero, go to ]10 volts and return to zero during 10 ms. . Applying this electrical field to a DUT, the capacitance response and resistance response can be observed. CNT tape is easier to manufacture and cheaper than micromachining silicon or other ceramic piezoelectric used in gyroscopes and accelerometers CNT tape properties can be modified during manufacture for specific application CNT tape has enhanced mechanical and thermal properties in addition to unique electrical

  10. Effectiveness of taping and bracing in balance.

    Barkoukis, Vassilis; Sykaras, Evaggelos; Costa, Frosoula; Tsorbatzoudis, Haralambos

    2002-04-01

    Taping and bracing are thought to be effective methods in restricting the ankle's joint motion and assisting prevention of injuries. Research evidence suggests that taping and bracing enhance both the mechanical support and the proprioception of the ankle. However, there is little research concerning the influence of taping and bracing on sport performance. Research has mainly examined tasks with demands on the frontal plane. Therefore, the present study examined the effect of taping and bracing on the performance of a task with demands on the frontal plane. A sample of 30 physical education students (Mage=21.9 yr.) performed a balance task requiring estimation of balance and both right and left deviations. The subjects performed the balance task on four different conditions, with tape, with Swede-O (a lace-up, boot style stabilizer), with Aircast (an inflatable cast), and without any stabilizer. There were no significant differences among the conditions. These findings indicate that taping and bracing do not have negative effects on balance in the frontal plane. This study created concerns regarding the appropriate stabilizer for different tasks, bilateral coordination after the application of a stabilizer, and the influence of psychological factors on prevention of injury. PMID:12027354

  11. Levitation characteristics of HTS tape stacks

    Pokrovskiy, S. V.; Ermolaev, Y. S.; Rudnev, I. A. [National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow (Russian Federation)

    2015-03-15

    Due to the considerable development of the technology of second generation high-temperature superconductors and a significant improvement in their mechanical and transport properties in the last few years it is possible to use HTS tapes in the magnetic levitation systems. The advantages of tapes on a metal substrate as compared with bulk YBCO material primarily in the strength, and the possibility of optimizing the convenience of manufacturing elements of levitation systems. In the present report presents the results of the magnetic levitation force measurements between the stack of HTS tapes containing of tapes and NdFeB permanent magnet in the FC and ZFC regimes. It was found a non- linear dependence of the levitation force from the height of the array of stack in both modes: linear growth at small thickness gives way to flattening and constant at large number of tapes in the stack. Established that the levitation force of stacks comparable to that of bulk samples. The numerical calculations using finite element method showed that without the screening of the applied field the levitation force of the bulk superconductor and the layered superconductor stack with a critical current of tapes increased by the filling factor is exactly the same, and taking into account the screening force slightly different.

  12. 41 CFR 101-26.508 - Electronic data processing (EDP) tape and instrumentation tape (wide and intermediate band).

    2010-07-01

    ... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Electronic data processing (EDP) tape and instrumentation tape (wide and intermediate band). 101-26.508 Section 101-26.508... Programs § 101-26.508 Electronic data processing (EDP) tape and instrumentation tape (wide and...

  13. Kinesio Taping effects on knee extension force among soccer players

    Serra, Maysa V. G. B.; Vieira, Edgar R.; Denis Brunt; Goethel, Márcio F.; Mauro Gonçalves; Paulo R. V. Quemelo

    2015-01-01

    Background : Kinesio Taping (KT) is widely used, however the effects of KT on muscle activation and force are contradictory. Objective : To evaluate the effects of KT on knee extension force in soccer players. Method: This is a clinical trial study design. Thirty-four subjects performed two maximal isometric voluntary contractions of the lower limbs pre, immediately post, and 24 hours after tape application on the lower limbs. Both lower limbs were taped, using K-Tape and 3M Micropore tape ra...

  14. Strategy for robot motion and path planning in robot taping

    Yuan, Qilong; Chen, I.-Ming; Lembono, Teguh Santoso; Landén, Simon Nelson; Malmgren, Victor

    2016-05-01

    Covering objects with masking tapes is a common process for surface protection in processes like spray painting, plasma spraying, shot peening, etc. Manual taping is tedious and takes a lot of effort of the workers. The taping process is a special process which requires correct surface covering strategy and proper attachment of the masking tape for an efficient surface protection. We have introduced an automatic robot taping system consisting of a robot manipulator, a rotating platform, a 3D scanner and specially designed taping end-effectors. This paper mainly talks about the surface covering strategies for different classes of geometries. The methods and corresponding taping tools are introduced for taping of following classes of surfaces: Cylindrical/extended surfaces, freeform surfaces with no grooves, surfaces with grooves, and rotational symmetrical surfaces. A collision avoidance algorithm is introduced for the robot taping manipulation. With further improvements on segmenting surfaces of taping parts and tape cutting mechanisms, such taping solution with the taping tool and the taping methodology can be combined as a very useful and practical taping package to assist humans in this tedious and time costly work.

  15. Strategy for robot motion and path planning in robot taping

    Yuan, Qilong; Chen, I.-Ming; Lembono, Teguh Santoso; Landén, Simon Nelson; Malmgren, Victor

    2016-06-01

    Covering objects with masking tapes is a common process for surface protection in processes like spray painting, plasma spraying, shot peening, etc. Manual taping is tedious and takes a lot of effort of the workers. The taping process is a special process which requires correct surface covering strategy and proper attachment of the masking tape for an efficient surface protection. We have introduced an automatic robot taping system consisting of a robot manipulator, a rotating platform, a 3D scanner and specially designed taping end-effectors. This paper mainly talks about the surface covering strategies for different classes of geometries. The methods and corresponding taping tools are introduced for taping of following classes of surfaces: Cylindrical/extended surfaces, freeform surfaces with no grooves, surfaces with grooves, and rotational symmetrical surfaces. A collision avoidance algorithm is introduced for the robot taping manipulation. With further improvements on segmenting surfaces of taping parts and tape cutting mechanisms, such taping solution with the taping tool and the taping methodology can be combined as a very useful and practical taping package to assist humans in this tedious and time costly work.

  16. Effects of kinesio tape compared with non-elastic tape on hand grip strength.

    Kim, Ji Young; Kim, Seong Yeol

    2016-05-01

    [Purpose] Many assumptions have been made about taping and several studies have considered tape application methods; however, the true effect of taping on muscle strength remains unclear. Most previous studies compared application techniques using Kinesio tape (KT), but studies that compared muscle strength using non-elastic tape (NT) are limited. Moreover, no studies have applied KT and NT in the same way to assess grip strength in normal subjects. The purpose of this study was to evaluate the immediate effect of application of two tapes with different elastic properties on maximal grip strength in healthy adults. [Subjects and Methods] Twenty healthy adults were divided into two groups (KT and NT). Maximal grip strength was measured with a dynamometer. Forearm extensor muscles of the dominant hand were then taped and subjects were immediately asked to perform hand grip movement with maximum strength in the same standardized manner. [Results] In the KT group, maximal grip strength was significantly increased compared to the initial value; however, in the NT group, there was no significant difference in maximal grip strength. [Conclusion] This study suggests that only Kinesio tape can increase maximal grip strength immediately after application on the extensor region of the forearm. PMID:27313372

  17. Adhesion and Cohesion

    J. Anthony von Fraunhofer

    2012-01-01

    Full Text Available The phenomena of adhesion and cohesion are reviewed and discussed with particular reference to dentistry. This review considers the forces involved in cohesion and adhesion together with the mechanisms of adhesion and the underlying molecular processes involved in bonding of dissimilar materials. The forces involved in surface tension, surface wetting, chemical adhesion, dispersive adhesion, diffusive adhesion, and mechanical adhesion are reviewed in detail and examples relevant to adhesive dentistry and bonding are given. Substrate surface chemistry and its influence on adhesion, together with the properties of adhesive materials, are evaluated. The underlying mechanisms involved in adhesion failure are covered. The relevance of the adhesion zone and its importance with regard to adhesive dentistry and bonding to enamel and dentin is discussed.

  18. Tape casting using fine ceramic powders

    This paper discusses tape casting technology, developed for the production of ceramic composites using fine powders of alumina and zirconia with an average particle size in the range 0.25-0.3 μm. These powders require careful control of the dispersant/solids ratio in order to minimize the slip viscosity, and to prevent the rejection of excess dispersant during solvent evaporation. In this regard phosphate ester has been found to be an effective dispersant. The choice of solvent is also important, with a non-polar solvent exhibiting more forgiving behavior. The use of such fine powders lowers the solids loading permitted in the tape casting slip to about 22 vol. %, with a resulting green density of less than 54% of theoretical. However, high sintered densities can be achieved in both single tapes and laminates. Constraints imposed on the tape during solvent evaporation lead to a difference in green density within the tapes, and strategies need to be developed to counteract this

  19. Interactions at the head-tape interface of a linear tape system

    Wild, M A

    2001-01-01

    temperature was investigated through the use of an environmental chamber. Extensive use was made of surface specific analytical techniques such as XPS, AFM, AES and SEM to study the physical and chemical changes that occur at the head/tape interface. Results showed that cycling improved the signal performance of all the tapes tested. The data cartridge drive belt had an effect on the chemical properties of the tape surface on which it was in contact. Also binder degradation occurred for each tape and appeared to be greater at higher humidity. Lubricant was generally seen to migrate to the tape surface with cycling. Any surface changes likely to affect signal output occurred at the head surface rather than the tape. Many of the recent improvements in the capacity of data cartridge systems have been achieved through the use of narrower tracks, higher linear densities and continuous servo tracking with multi-channel heads. These changes have produced new tribological problems at the head/tape interface. It is cr...

  20. Effects of Kinesio taping and Mcconnell taping on balance and walking speed of hemiplegia patients.

    Choi, Yong-Kyu; Park, Young-Han; Lee, Jung-Ho

    2016-04-01

    [Purpose] The aim of this study was to evaluate the overlap effect of the PNF following the application of Kinesio taping and the McConnell taping, and also the impact of the taping application method on the balance and walking speed of the patients with stroke. [Subjects and Methods] Thirty-six patients who were diagnosed with hemiplegia due to stroke were selected as subjects of this study. They were randomly and evenly divided into experiment group 1 (Kinesio taping group), experiment group 2 (McConnell taping group), and the control group; each group had 12 patients. [Results] The Berg balance scale (BBS) was used to evaluate balance, and the ability in this study. A 10 m walking test (10MWT) was performed to measure the walking speed. Experiment group 1 showed a statistically significant improvement in balance and walking speed compared to experiment group 2, and the control group in week 4 and week 8. [Conclusion] Application of Kinesio taping had a more beneficial effect on the balance and walking speed than joint-fixation taping of the patients with stroke. PMID:27190448

  1. Placement suitability criteria of composite tape for mould surface in automated tape placement

    Zhang Peng

    2015-10-01

    Full Text Available Automated tape placement is an important automated process used for fabrication of large composite structures in aeronautical industry. The carbon fiber composite parts realized with this process tend to replace the aluminum parts produced by high-speed machining. It is difficult to determine the appropriate width of the composite tape in automated tape placement. Wrinkling will appear in the tape if it does not suit for the mould surface. Thus, this paper deals with establishing placement suitability criteria of the composite tape for the mould surface. With the assumptions for ideal mapping and by applying some principles and theorems of differential geometry, the centerline trajectory of the composite tape is identified to follow the geodesic. The placement suitability of the composite tape is examined on three different types of non-developable mould surfaces and four criteria are derived. The developed criteria have been used to test the deposition process over several mould surfaces and the appropriate width for each mould surface is obtained by referring to these criteria.

  2. Textured substrate tape and devices thereof

    Goyal, Amit

    2006-08-08

    A method for forming a sharply biaxially textured substrate, such as a single crystal substrate, includes the steps of providing a deformed metal substrate, followed by heating above the secondary recrystallization temperature of the deformed substrate, and controlling the secondary recrystallization texture by either using thermal gradients and/or seeding. The seed is selected to shave a stable texture below a predetermined temperature. The sharply biaxially textured substrate can be formed as a tape having a length of 1 km, or more. Epitaxial articles can be formed from the tapes to include an epitaxial electromagnetically active layer. The electromagnetically active layer can be a superconducting layer.

  3. Efeitos do Kinesio Taping no Desporto

    Pereira, Marcelo

    2012-01-01

    O médico japonês, Dr. Kenzo Kase criou, em 1973, o kinesio taping, uma nova aplicação de ligadura adesiva, tendo como objectivo melhorar a função da musculatura, sem limitar os movimentos, reduzir a dor, edema e os espasmos musculares. Parece ter também a capacidade de prevenir lesões no desporto, sendo por isso uma técnica comummente utilizada para este efeito. Objetivo: Esta revisão bibliográfica teve como propósito destacar os principais dados publicados sobre o efeito do Kinesio Taping no...

  4. CLEARANCE OF ARCHIVE TAPE VAULT (BUILDING 186)

    EP Division

    1999-01-01

    The archive tape vault is being cleared to make way for the LHC experiments silicon facility.Experiments were contacted in February to arrange for the extended storage or destruction of archived volumes. Any who have not yet done so are asked to contactR. Minchin/IT immediately.This is also an opportunity to clear unused tapes or cartridges from around the site and have them destroyed ecologically. Please contact ep.smi.helpdesk@cern.ch to arrange for collection.A.E. Ball/EP-SMI

  5. Elastic therapeutic tape: do they have the same material properties?

    Boonkerd, Chuanpis; Limroongreungrat, Weerawat

    2016-04-01

    [Purpose] Elastic therapeutic tape has been widely used for rehabilitation and treatment of sports injuries. Tapes with different elastic properties serve different treatment purposes with inappropriate tension reducing tape effectiveness. Many tapes are available in the market, but studies on tape properties are limited. The aim of this study was to examine the material properties of elastic therapeutic tape. [Subjects and Methods] Brands of elastic therapeutic tape included KinesioTex(®), ATex, Mueller, 3M, and ThaiTape. The Material Testing System Insight(®) 1 Electromechanical Testing Systems was used to apply a tensile force on elastic therapeutic tape. Ten specimens of each brand were tested. Stress, load, and Young's modulus at 25%, 50%, 75%, 100%, and maximum point were collected. One-way analysis of variance with post hoc testing was used to analyze tape parameters. [Results] Maximum elongation and Young's modulus at all percentages were significantly different between brands. There were no differences in maximum load and maximum stress. [Conclusion] Mechanical properties are different for commercial elastic therapeutic tapes. Physiotherapists and other clinicians should be aware of mechanical tape properties to correctly apply kinesio tape. PMID:27190472

  6. Elastic therapeutic tape: do they have the same material properties?

    Boonkerd, Chuanpis; Limroongreungrat, Weerawat

    2016-01-01

    [Purpose] Elastic therapeutic tape has been widely used for rehabilitation and treatment of sports injuries. Tapes with different elastic properties serve different treatment purposes with inappropriate tension reducing tape effectiveness. Many tapes are available in the market, but studies on tape properties are limited. The aim of this study was to examine the material properties of elastic therapeutic tape. [Subjects and Methods] Brands of elastic therapeutic tape included KinesioTex®, ATex, Mueller, 3M, and ThaiTape. The Material Testing System Insight® 1 Electromechanical Testing Systems was used to apply a tensile force on elastic therapeutic tape. Ten specimens of each brand were tested. Stress, load, and Young’s modulus at 25%, 50%, 75%, 100%, and maximum point were collected. One-way analysis of variance with post hoc testing was used to analyze tape parameters. [Results] Maximum elongation and Young’s modulus at all percentages were significantly different between brands. There were no differences in maximum load and maximum stress. [Conclusion] Mechanical properties are different for commercial elastic therapeutic tapes. Physiotherapists and other clinicians should be aware of mechanical tape properties to correctly apply kinesio tape. PMID:27190472

  7. Short-Term Effects of Kinesio Taping and Cross Taping Application in the Treatment of Latent Upper Trapezius Trigger Points: A Prospective, Single-Blind, Randomized, Sham-Controlled Trial.

    Halski, Tomasz; Ptaszkowski, Kuba; Słupska, Lucyna; Paprocka-Borowicz, Małgorzata; Dymarek, Robert; Taradaj, Jakub; Bidzińska, Gabriela; Marczyński, Daniel; Cynarska, Aleksandra; Rosińczuk, Joanna

    2015-01-01

    Kinesio taping (KT) may be a new treatment in patients with myofascial trigger points (MTrPs). A new method available for taping practitioners is cross taping (CT). The main objective was to determine how CT, KT, and medical adhesive tape (sham group) affect the subjective assessment of resting bioelectrical activity and pain of the upper trapezius muscle (UT) in patients with MTrPs. 105 volunteers were recruited to participate. The primary outcome was resting bioelectrical activity of UT muscle as assessed by surface electromyography (sEMG) in each group and pain intensity on a visual analog scale (VAS). Assessments were collected before and after intervention and after the 24-hours follow-up. No significant differences were observed in bioelectrical activity of UT between pre-, post-, and follow-up results. In three groups patients had significantly lower pain VAS score after the intervention (CT-p tapes does not influence the resting bioelectrical activity of UT muscle and may not lead to a reduction in muscle tone in the case of MTrPs. PMID:26491458

  8. Short-Term Effects of Kinesio Taping and Cross Taping Application in the Treatment of Latent Upper Trapezius Trigger Points: A Prospective, Single-Blind, Randomized, Sham-Controlled Trial

    Tomasz Halski

    2015-01-01

    Full Text Available Kinesio taping (KT may be a new treatment in patients with myofascial trigger points (MTrPs. A new method available for taping practitioners is cross taping (CT. The main objective was to determine how CT, KT, and medical adhesive tape (sham group affect the subjective assessment of resting bioelectrical activity and pain of the upper trapezius muscle (UT in patients with MTrPs. 105 volunteers were recruited to participate. The primary outcome was resting bioelectrical activity of UT muscle as assessed by surface electromyography (sEMG in each group and pain intensity on a visual analog scale (VAS. Assessments were collected before and after intervention and after the 24-hours follow-up. No significant differences were observed in bioelectrical activity of UT between pre-, post-, and follow-up results. In three groups patients had significantly lower pain VAS score after the intervention (CT—p<0.001, KT—p<0.001, and sham—p<0.01. The Kruskal-Wallis ANOVA showed no significant differences in almost all measurements between groups. The application of all three types of tapes does not influence the resting bioelectrical activity of UT muscle and may not lead to a reduction in muscle tone in the case of MTrPs.

  9. Advanced adhesives in electronics

    Bailey, C

    2011-01-01

    Adhesives are widely used in the manufacture of electronic devices to act as passive and active components. Recently there has been considerable interest in the use of conductive adhesives. This book reviews key types of conductive adhesives, processing methods, properties and the way they can be modelled as well as potential applications.$bAdhesives for electronic applications serve important functional and structural purposes in electronic components and packaging, and have developed significantly over the last few decades. Advanced adhesives in electronics reviews recent developments in adhesive joining technology, processing and properties. The book opens with an introduction to adhesive joining technology for electronics. Part one goes on to cover different types of adhesive used in electronic systems, including thermally conductive adhesives, isotropic and anisotropic conductive adhesives and underfill adhesives for flip-chip applications. Part two focuses on the properties and processing of electronic ...

  10. A Tape-Lecture Course in Electrochemistry.

    Sheridan, P.

    1978-01-01

    Investigates the possibility of using audio-tapes for self-study courses in technical colleges. This article presents: (1) description of the electrochemistry course taught; (2) results of the assessment of student reaction to the course; and (3) conclusions. (HM)

  11. Artificial Intelligence Controls Tape-Recording Sequence

    Schwuttke, Ursula M.; Otamura, Roy M.; Zottarelli, Lawrence J.

    1989-01-01

    Developmental expert-system computer program intended to schedule recording of large amounts of data on limited amount of magnetic tape. Schedules recording using two sets of rules. First set incorporates knowledge of locations for recording of new data. Second set incorporates knowledge about issuing commands to recorder. Designed primarily for use on Voyager Spacecraft, also applicable to planning and sequencing in industry.

  12. Idea Bank: Duct Tape Note Twister

    McHenry, Molly

    2008-01-01

    In this article, the author relates how she observed a middle school math teacher deliver a miserable class. She realized that she did the same thing to her music students. To engage her students, she developed "Note Twister," a music reading game using duct tape to form musical notes and the basic premise behind the game, "Twister." She finds…

  13. An Internally Heated Shape Memory Polymer Dry Adhesive

    Jeffrey Eisenhaure

    2014-08-01

    Full Text Available A conductive epoxy-based shape memory polymer (SMP is demonstrated using carbon black (CB as a dopant for the purpose of creating an SMP dry adhesive system which can internally generate the heat required for activation. The electrical and mechanical properties of the CB/SMP blends for varying dopant concentrations are characterized. A composite adhesive is created to minimize surface contact resistance to conductive tape acting as electrodes, while maintaining bulk resistivity required for heat generation due to current flow. The final adhesive can function on flat or curved surfaces. As a demonstration, a 25 mm wide by 45 mm long dry adhesive strip is shown to heat evenly from an applied voltage, and can easily hold a mass in excess of 6 kg when bonded to a spherical concave glass surface using light pressure at 75 °C.

  14. AC loss in superconducting tapes and cables

    Oomen, Marijn Pieter

    High-temperature superconductors are developed for use in power-transmission cables, transformers and motors. The alternating magnetic field in these devices causes AC loss, which is a critical factor in the design. The study focuses on multi-filament Bi-2223/Ag tapes exposed to a 50-Hz magnetic field at 77 K. The AC loss is measured with magnetic, electric and calorimetric methods. The results are compared to theoretical predictions based mainly on the Critical-State Model. The loss in high- temperature superconductors is affected by their characteristic properties: increased flux creep, high aspect ratio and inhomogeneties. Filament intergrowths and a low matrix resistivity cause a high coupling-current loss especially when the filaments are fully coupled. When the wide side of the tape is parallel to the external magnetic field, the filaments are decoupled by twisting. In a perpendicular field the filaments can be decoupled only by combining a short twist pitch with a transverse resistivity much higher than that of silver. The arrangement of the inner filaments determines the transverse resistivity. Ceramic barriers around the filaments cause partial decoupling in perpendicular magnetic fields at power frequencies. The resultant decrease in AC loss is greater than the accompanying decrease in critical current. With direct transport current in alternating magnetic field, the transport-current loss is well described with a new model for the dynamic resistance. The Critical- State Model describes well the magnetisation and total AC loss in parallel magnetic fields, at transport currents up to 0.7 times the critical current. When tapes are stacked face-to-face in a winding, the AC-loss density in perpendicular fields is greatly decreased due to the mutual shielding of the tapes. Coupling currents between the tapes in a cable cause an extra AC loss, which is reduced by a careful cable design. The total AC loss in complex devices with many tapes is generally well

  15. Editing of EIA coded, numerically controlled, machine tool tapes

    Weiner, J. M.

    1975-01-01

    Editing of numerically controlled (N/C) machine tool tapes (8-level paper tape) using an interactive graphic display processor is described. A rapid technique required for correcting production errors in N/C tapes was developed using the interactive text editor on the IMLAC PDS-ID graphic display system and two special programs resident on disk. The correction technique and special programs for processing N/C tapes coded to EIA specifications are discussed.

  16. Adhesion in microelectronics

    Mittal, K L

    2014-01-01

    This comprehensive book will provide both fundamental and applied aspects of adhesion pertaining to microelectronics in a single and easily accessible source. Among the topics to be covered include; Various theories or mechanisms of adhesionSurface (physical or chemical) characterization of materials as it pertains to adhesionSurface cleaning as it pertains to adhesionWays to improve adhesionUnraveling of interfacial interactions using an array of pertinent techniquesCharacterization of interfaces / interphasesPolymer-polymer adhesionMetal-polymer adhesion  (metallized polymers)Polymer adhesi

  17. Thermal Characterization of Adhesive

    Spomer, Ken A.

    1999-01-01

    The current Space Shuttle Reusable Solid Rocket Motor (RSRM) nozzle adhesive bond system is being replaced due to obsolescence. Down-selection and performance testing of the structural adhesives resulted in the selection of two candidate replacement adhesives, Resin Technology Group's Tiga 321 and 3M's EC2615XLW. This paper describes rocket motor testing of these two adhesives. Four forty-pound charge motors were fabricated in configurations that would allow side by side comparison testing of the candidate replacement adhesives and the current RSRM adhesives. The motors provided an environment where the thermal performance of adhesives in flame surface bondlines was compared. Results of the FPC testing show that: 1) The phenolic char depths on radial bond lines is approximately the same and vary depending on the position in the blast tube regardless of which adhesive was used; 2) The adhesive char depth of the candidate replacement adhesives is less than the char depth of the current adhesives; 3) The heat-affected depth of the candidate replacement adhesives is less than the heat-affected depth of the current adhesives; and 4) The ablation rates for both replacement adhesives are slower than that of the current adhesives.

  18. YBCO superconducting tapes by magnetron IBAD

    Full text: Large-scale commercial applications of high-temperature superconductors in power devices and systems operating at liquid nitrogen temperatures (77 K) require flexible wire or tape with high critical current density, Jc = 104 - 106 A cm-2, that can be sustained in moderate to high magnetic field, ie. ≤ 0.2 T for transmission cables, 2 - 4 T for motors and transformers, 2 - 10 T for energy storage devices and superconducting magnets. These requirements cannot be met with the silver-sheathed Bi-2223/Ag composite tapes because of inherent materials constraints (eg. low flux pinning, granularity) and various processing difficulties. Recent efforts to produce high-current YBCO superconducting tapes (YBa2Cu3O7/buffer/metal) based on high quality epitaxial c-axis YBa2Cu3O7 thin films deposited on buffered Ni-based alloy substrates have demonstrated Jc = 105 - 106 A cm-2 and unsurpassed magnetic field performance at 77 K. From an existing platform in ion beam and thin film technologies we are developing in situ processes to address scale-up issues to produce YBCO tape. Here we discuss the deposition by magnetron IBAD and the properties of YBCO tapes. Biaxially aligned YSZ and CeO2 buffer layers are deposited at room temperature on polished Hastelloy substrates. Epitaxial YBa2Cu3O7 thin films, 200 - 400 nm thick, are deposited at 750 deg C by sputtering a stoichiometric YBa2Cu3O7 ceramic target in an argon/oxygen plasma. X-ray θ-2θ diffraction, rocking curves (ω scans), φ scans and pole figures are used to determine the crystalline quality and biaxial alignment of films. Typical YSZ and CeO2 buffer layers have (111) poles in the direction of the ion beam (55 deg) and full width at half maximum FWHM = 24 - 30 deg. The YBCO tapes have (103) pole FWHM = 24 deg, Δω = 2 deg and Jc ∼ 3x105 A cm-2 at 77 K Similar YBa2Cu3O7 films deposited on MgO (100) substrates have Jc = (1 - 4)x106 A cm-2

  19. Understanding Marine Mussel Adhesion

    H. G. Silverman; F. F. Roberto

    2007-12-01

    In addition to identifying the proteins that have a role in underwater adhesion by marine mussels, research efforts have focused on identifying the genes responsible for the adhesive proteins, environmental factors that may influence protein production, and strategies for producing natural adhesives similar to the native mussel adhesive proteins. The production-scale availability of recombinant mussel adhesive proteins will enable researchers to formulate adhesives that are waterimpervious and ecologically safe and can bind materials ranging from glass, plastics, metals, and wood to materials, such as bone or teeth, biological organisms, and other chemicals or molecules. Unfortunately, as of yet scientists have been unable to duplicate the processes that marine mussels use to create adhesive structures. This study provides a background on adhesive proteins identified in the blue mussel, Mytilus edulis, and introduces our research interests and discusses the future for continued research related to mussel adhesion.

  20. Understanding marine mussel adhesion.

    Silverman, Heather G; Roberto, Francisco F

    2007-01-01

    In addition to identifying the proteins that have a role in underwater adhesion by marine mussels, research efforts have focused on identifying the genes responsible for the adhesive proteins, environmental factors that may influence protein production, and strategies for producing natural adhesives similar to the native mussel adhesive proteins. The production-scale availability of recombinant mussel adhesive proteins will enable researchers to formulate adhesives that are water-impervious and ecologically safe and can bind materials ranging from glass, plastics, metals, and wood to materials, such as bone or teeth, biological organisms, and other chemicals or molecules. Unfortunately, as of yet scientists have been unable to duplicate the processes that marine mussels use to create adhesive structures. This study provides a background on adhesive proteins identified in the blue mussel, Mytilus edulis, and introduces our research interests and discusses the future for continued research related to mussel adhesion. PMID:17990038

  1. Transaction aware tape-infrastructure monitoring

    Administrating a large scale, multi protocol, hierarchical tape infrastructure like the CERN Advanced STORage manager (CASTOR)[2], which stores now 100 PB (with an increasing step of 25 PB per year), requires an adequate monitoring system for quick spotting of malfunctions, easier debugging and on demand report generation. The main challenges for such system are: to cope with CASTOR's log format diversity and its information scattered among several log files, the need for long term information archival, the strict reliability requirements and the group based GUI visualization. For this purpose, we have designed, developed and deployed a centralized system consisting of four independent layers: the Log Transfer layer for collecting log lines from all tape servers to a single aggregation server, the Data Mining layer for combining log data into transaction context, the Storage layer for archiving the resulting transactions and finally the Web UI layer for accessing the information. Having flexibility, extensibility and maintainability in mind, each layer is designed to work as a message broker for the next layer, providing a clean and generic interface while ensuring consistency, redundancy and ultimately fault tolerance. This system unifies information previously dispersed over several monitoring tools into a single user interface, using Splunk, which also allows us to provide information visualization based on access control lists (ACL). Since its deployment, it has been successfully used by CASTOR tape operators for quick overview of transactions, performance evaluation, malfunction detection and from managers for report generation.

  2. Kinesio taping in treatment and prevention of sports injuries: a meta-analysis of the evidence for its effectiveness.

    Williams, Sean; Whatman, Chris; Hume, Patria A; Sheerin, Kelly

    2012-02-01

    Kinesio tape (KT) is an elastic therapeutic tape used for treating sports injuries and a variety of other disorders. Chiropractor, Dr Kenso Kase, developed KT taping techniques in the 1970s. It is claimed that KT supports injured muscles and joints and helps relieve pain by lifting the skin and allowing improved blood and lymph flow. The profile of KT rose after the tape was donated to 58 countries for use during the 2008 Olympic Games, and was seen on high-profile athletes. Practitioners are asking whether they should use KT over other elastic adhesive tapes. The aim of this review was to evaluate, using meta-analysis, the effectiveness of KT in the treatment and prevention of sports injuries. Electronic databases including SPORTDiscus, Scopus, MEDLINE, ScienceDirect and sports medicine websites were searched using keywords 'kinesio taping/tape'. From 97 articles, ten met the inclusion criteria (article reported data for effect of KT on a musculoskeletal outcome and had a control group) and were retained for meta-analyses. Magnitude-based inferences were used to assess clinical worth of positive outcomes reported in studies. Only two studies investigated sports-related injuries (shoulder impingement), and just one of these involved injured athletes. Studies attending to musculoskeletal outcomes in healthy participants were included on the basis that these outcomes may have implications for the prevention of sporting injuries. The efficacy of KT in pain relief was trivial given there were no clinically important results. There were inconsistent range-of-motion outcome results, with at least small beneficial results seen in two studies, but trivial results in two other studies across numerous joint measurements. There was a likely beneficial effect for proprioception regarding grip force sense error, but no positive outcome for ankle proprioception. Seven outcomes relating to strength were beneficial, although there were numerous trivial findings for quadriceps and

  3. PH dependent adhesive peptides

    Tomich, John; Iwamoto, Takeo; Shen, Xinchun; Sun, Xiuzhi Susan

    2010-06-29

    A novel peptide adhesive motif is described that requires no receptor or cross-links to achieve maximal adhesive strength. Several peptides with different degrees of adhesive strength have been designed and synthesized using solid phase chemistries. All peptides contain a common hydrophobic core sequence flanked by positively or negatively charged amino acids sequences.

  4. Effects of Kinesio Taping versus McConnell Taping for Patellofemoral Pain Syndrome: A Systematic Review and Meta-Analysis.

    Chang, Wen-Dien; Chen, Fu-Chen; Lee, Chia-Lun; Lin, Hung-Yu; Lai, Ping-Tung

    2015-01-01

    Objectives. To conduct a systematic review comparing the effects of Kinesio taping with McConnell taping as a method of conservative management of patients with patellofemoral pain syndrome (PFPS). Methods. MEDLINE, PUBMED, EMBASE, AMED, and the Cochrane Central Register of Control Trials electronic databases were searched through July 2014. Controlled studies evaluating the effects of Kinesio or McConnell taping in PFPS patients were retrieved. Results. Ninety-one articles were selected from the articles that were retrieved from the databases, and 11 articles were included in the analysis. The methods, evaluations, and results of the articles were collected, and the outcomes of patellar tapings were analyzed. Kinesio taping can reduce pain and increase the muscular flexibility of PFPS patients, and McConnell taping also had effect in pain relief and patellar alignment. Meta-analysis showed small effect in pain reduction and motor function improvement and moderate effect in muscle activity change among PFPS patients using Kinesio taping. Conclusions. Kinesio taping technique used for muscles can relieve pain but cannot change patellar alignment, unlike McConnell taping. Both patellar tapings are used differently for PFPS patients and substantially improve muscle activity, motor function, and quality of life. PMID:26185517

  5. Effects of Kinesio Taping versus McConnell Taping for Patellofemoral Pain Syndrome: A Systematic Review and Meta-Analysis

    Wen-Dien Chang

    2015-01-01

    Full Text Available Objectives. To conduct a systematic review comparing the effects of Kinesio taping with McConnell taping as a method of conservative management of patients with patellofemoral pain syndrome (PFPS. Methods. MEDLINE, PUBMED, EMBASE, AMED, and the Cochrane Central Register of Control Trials electronic databases were searched through July 2014. Controlled studies evaluating the effects of Kinesio or McConnell taping in PFPS patients were retrieved. Results. Ninety-one articles were selected from the articles that were retrieved from the databases, and 11 articles were included in the analysis. The methods, evaluations, and results of the articles were collected, and the outcomes of patellar tapings were analyzed. Kinesio taping can reduce pain and increase the muscular flexibility of PFPS patients, and McConnell taping also had effect in pain relief and patellar alignment. Meta-analysis showed small effect in pain reduction and motor function improvement and moderate effect in muscle activity change among PFPS patients using Kinesio taping. Conclusions. Kinesio taping technique used for muscles can relieve pain but cannot change patellar alignment, unlike McConnell taping. Both patellar tapings are used differently for PFPS patients and substantially improve muscle activity, motor function, and quality of life.

  6. Micro/Nanostructured Films and Adhesives for Biomedical Applications.

    Lee, Jungkyu K; Kang, Sung Min; Yang, Sung Ho; Cho, Woo Kyung

    2015-12-01

    The advanced technologies available for micro/nanofabrication have opened new avenues for interdisciplinary approaches to solve the unmet medical needs of regenerative medicine and biomedical devices. This review highlights the recent developments in micro/nanostructured adhesives and films for biomedical applications, including waterproof seals for wounds or surgery sites, drug delivery, sensing human body signals, and optical imaging of human tissues. We describe in detail the fabrication processes required to prepare the adhesives and films, such as tape-based adhesives, nanofilms, and flexible and stretchable film-based electronic devices. We also discuss their biomedical functions, performance in vitro and in vivo, and the future research needed to improve the current systems. PMID:26510305

  7. STS-109 Mission Highlights Resource Tape

    2002-05-01

    This video, Part 1 of 4, shows the activities of the STS-109 crew (Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, James Newman, Richard Linnehan, Michael Massimino, Mission Specialists) during flight days 1 through 3. The activities from other flight days can be seen on 'STS 109 Mission Highlights Resource Tape' Part 2 of 4 (internal ID 2002137664), 'STS 109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139471), and 'STS-109 Mission Highlights Resource Tape' Part 4 of 4 (internal ID 2002137577). The main activity recorded during flight day 1 is the liftoff of Columbia. Attention is given to suit-up, boarding, and pre-flight procedures. The pre-launch crew meal has no sound. The crew members often wave to the camera before liftoff. The jettisoning of the solid rocket boosters is shown, and the External Tank is seen as it falls to Earth, moving over African dunes in the background. There are liftoff replays, including one from inside the cockpit. The opening of the payload bay doors is seen from the rear of the shuttle's cockpit. The footage from flight day 2 shows the Flight Support System for bearthing the HST (Hubble Space Telescope). Crew preparations for the bearthing are shown. Flight day 3 shows the tracking of and approach to the HST by Columbia, including orbital maneuvers, the capture of the HST, and its lowering onto the Flight Support System. Many views of the HST are shown, including one which reveals an ocean and cloud background as the HST retracts a solar array.

  8. Particle adhesion and removal

    Mittal, K L

    2015-01-01

    The book provides a comprehensive and easily accessible reference source covering all important aspects of particle adhesion and removal.  The core objective is to cover both fundamental and applied aspects of particle adhesion and removal with emphasis on recent developments.  Among the topics to be covered include: 1. Fundamentals of surface forces in particle adhesion and removal.2. Mechanisms of particle adhesion and removal.3. Experimental methods (e.g. AFM, SFA,SFM,IFM, etc.) to understand  particle-particle and particle-substrate interactions.4. Mechanics of adhesion of micro- and  n

  9. 3-D Numerical Simulations of Twisted Stacked Tape Cables

    Krüger, Philipp A. C.; Zermeño, Victor M. R.; Takayasu, Makoto; Grilli, Francesco

    2014-01-01

    Different magnet applications require compact high current cables. Among the proposed solutions, the Twisted Stacked Tape Cable (TSTC) is easy to manufacture and has very high tape length usage efficiency. In this kind of cables the tapes are closely packed, so that their electromagnetic interaction is very strong and determines the overall performance of the cable. Numerical models are necessary tools to precisely evaluate this interaction and to predict the cable's behavior, e.g. in terms o...

  10. Faceted ceramic fibers, tapes or ribbons and epitaxial devices therefrom

    Goyal, Amit

    2013-07-09

    A crystalline article includes a single-crystal ceramic fiber, tape or ribbon. The fiber, tape or ribbon has at least one crystallographic facet along its length, which is generally at least one meter long. In the case of sapphire, the facets are R-plane, M-plane, C-plane or A-plane facets. Epitaxial articles, including superconducting articles, can be formed on the fiber, tape or ribbon.

  11. Influence on ankle taping on dynamic balance performance

    Kenny, Ian; Wu, Can; McEvoy, Johnson

    2011-01-01

    peer-reviewed This research aimed to investigate the effect of ankle taping on dynamic balance performance. Eighteen recreational athletes without any previous ankle sprain history performed six star excursion balance tests on each leg; randomly three trials with taped ankles and three trials without. A three-layer modified closed-basket inelastic taping technique was used. Normalised (by leg length) reaching distance was measured. It was found 1.Movement direction significantl...

  12. Tape-cast sensors and method of making

    Mukundan, Rangachary; Brosha, Eric L.; Garzon, Fernando H.

    2009-08-18

    A method of making electrochemical sensors in which an electrolyte material is cast into a tape. Prefabricated electrodes are then partially embedded between two wet layers of the electrolyte tape to form a green sensor, and the green sensor is then heated to sinter the electrolyte tape around the electrodes. The resulting sensors can be used in applications such as, but not limited to, combustion control, environmental monitoring, and explosive detection. A electrochemical sensor formed by the tape-casting method is also disclosed.

  13. Molten carbonate fuel cell integral matrix tape and bubble barrier

    A molten carbonate fuel cell matrix material is described made up of a matrix tape portion and a bubble barrier portion. The matrix tape portion comprises particles inert to molten carbonate electrolyte, ceramic particles and a polymeric binder, the matrix tape being flexible, pliable and having rubber-like compliance at room temperature. The bubble barrier is a solid material having fine porosity preferably being bonded to the matrix tape. In operation in a fuel cell, the polymer binder burns off leaving the matrix and bubble barrier providing superior sealing, stability and performance properties to the fuel cell stack

  14. Effects of Kinesio Taping versus McConnell Taping for Patellofemoral Pain Syndrome: A Systematic Review and Meta-Analysis

    Wen-Dien Chang; Fu-Chen Chen; Chia-Lun Lee; Hung-Yu Lin; Ping-Tung Lai

    2015-01-01

    Objectives. To conduct a systematic review comparing the effects of Kinesio taping with McConnell taping as a method of conservative management of patients with patellofemoral pain syndrome (PFPS). Methods. MEDLINE, PUBMED, EMBASE, AMED, and the Cochrane Central Register of Control Trials electronic databases were searched through July 2014. Controlled studies evaluating the effects of Kinesio or McConnell taping in PFPS patients were retrieved. Results. Ninety-one articles were selected from...

  15. Radiation-curable adhesives

    Radiation-curable adhesives may be classified into two broad categories. In the first category, adhesive bonding occurs as a direct result of irradiation. The second category includes pressure-sensitive and hot-melt adhesives, which are composed of linear or lightly cross-linked polymers prepared by a radiation-induced polymerization reaction. This chapter is mainly concerned with radiation-curable adhesives of the first category. The various adhesive types are discussed and adhesive performance is examined, particularly in relation to the chemistry and chemical technology which underlies the individual materials. A description of a limited number of representative applications is included as is an outline of recent developments of curing and dispensing equipment. 268 refs., 14 figs., 13 tabs

  16. Low-cost tape system measures velocity of acceleration

    Hartenstein, R.

    1964-01-01

    By affixing perforated magnetic recording tape to the falling end of a body, acceleration and velocity were measured. The measurement was made by allowing the tape to pass between a light source and a photoelectric sensor. Data was obtained from a readout device.

  17. Increasing the efficiency of tape-based storage backends

    HSM systems such as the CERN's Advanced STORage manager (CASTOR) [1] are responsible for storing Petabytes of data which is first cached on disk and then persistently stored on tape media. The contents of these tapes are regularly repacked from older, lower-density media to new-generation, higher-density media in order to free up physical space and ensure long term data integrity and availability. With the evolution of price decay and higher capacity of disk (and flash memory) based storage, our future vision for tape usage is to move away from serving on demand, random, per-file access to non-disk cached files, and to move towards loosely coupled, efficient bulk data transfers where large-volume data sets are stored and retrieved in aggregations, fully exploiting the stream-based nature of tape media. Mechanisms for grouped migration policies and priorities have been implemented, and an innovative tape format optimized for data aggregations is being developed. This new tape format will also allow for increasing the performance of repacking data from old to newer generation tape media with substantially reduced hardware costs. In this paper, we will describe the improvements for migration policies and priorities, as well as the proposed tape format and the changes which will be applied to the architecture of the CASTOR mass storage system.

  18. Multilayer tape cast SOFC – Effect of anode sintering temperature

    Hauch, Anne; Birkl, Christoph; Brodersen, Karen; Jørgensen, Peter Stanley

    2012-01-01

    Multilayer tape casting (MTC) is considered a promising, cost-efficient, up-scalable shaping process for production of planar anode supported solid oxide fuel cells (SOFC). Multilayer tape casting of the three layers comprising the half cell (anode support/active anode/electrolyte) can potentially...

  19. Prevention of bacterial adhesion

    Klemm, Per; Vejborg, Rebecca Munk; Hancock, Viktoria

    2010-01-01

    Management of bacterial infections is becoming increasingly difficult due to the emergence and increasing prevalence of bacterial pathogens that are resistant to available antibiotics. Conventional antibiotics generally kill bacteria by interfering with vital cellular functions, an approach that....... As such, adhesion represents the Achilles heel of crucial pathogenic functions. It follows that interference with adhesion can reduce bacterial virulence. Here, we illustrate this important topic with examples of techniques being developed that can inhibit bacterial adhesion. Some of these will...

  20. Recent development of Bi(2223)/Ag tapes for practical applications

    In this paper the authors report about some of the major developments of Ag sheathed Bi(2223) tapes that are actually under study in view of a possible practical application of these conductors. Efforts on improving the tape behavior in presence of alternating currents and high magnetic fields have to be done together with a severe optimization of the Powder-In-Tube method. A clear reduction of the magnetic AC losses is observed by AC susceptibility measurements performed on twisted Bi(2223) tapes prepared at the University of Geneva, with a resistive barrier capable of reducing the coupling losses between filaments. Finally, the authors report on multifilamentary tapes developed with a special configuration that can be of great interest when a magnetic field is applied to the tape at a significant angle with respect to the a-b planes of the superconductor

  1. Investigating Delamination Migration in Composite Tape Laminates

    Ratcliffe, James G.; DeCarvalho, Nelson V.

    2014-01-01

    A modification to a recently developed test specimen designed to investigate migration of a delamination between neighboring ply interfaces in tape laminates is presented. The specimen is a cross-ply laminated beam consisting of 40 plies with a polytetrafluoroethylene insert spanning part way along its length. The insert is located between a lower 0-degree ply (specimen length direction) and a stack of four 90-degree plies (specimen width direction). The modification involved a stacking sequence that promotes stable delamination growth prior to migration, and included a relocation of the insert from the specimen midplane to the interface between plies 14 and 15. Specimens were clamped at both ends onto a rigid baseplate and loaded on their upper surface via a piano hinge assembly, resulting in a predominantly flexural loading condition. Tests were conducted with the load-application point positioned at various locations along a specimen's span. This position affected the sequence of damage events during a test.

  2. Mouse Simulation Using Two Coloured Tapes

    Kumar, Vikram; Mahe, Swapnil; Vyawahare, Swapnil; 10.5121/ijist.2012.2206

    2012-01-01

    In this paper, we present a novel approach for Human Computer Interaction (HCI) where, we control cursor movement using a real-time camera. Current methods involve changing mouse parts such as adding more buttons or changing the position of the tracking ball. Instead, our method is to use a camera and computer vision technology, such as image segmentation and gesture recognition, to control mouse tasks (left and right clicking, double-clicking, and scrolling) and we show how it can perform everything as current mouse devices can. The software will be developed in JAVA language. Recognition and pose estimation in this system are user independent and robust as we will be using colour tapes on our finger to perform actions. The software can be used as an intuitive input interface to applications that require multi-dimensional control e.g. computer games etc.

  3. Effect of 3 Different Applications of Kinesio Taping Denko® on Electromyographic Activity: Inhibition or Facilitation of the Quadriceps of Males During Squat Exercise

    Júlio C. Serrão, Bruno Mezêncio, João G. Claudino, Rafael Soncin, Pedro L. Sampaio Miyashiro, Eric P. Sousa, Eduardo Borges, Vinícius Zanetti, Igor Phillip, Luiz Mochizuki, Alberto C. Amadio

    2016-09-01

    Full Text Available Kinesio taping consists of a technique which uses the application of an elastic adhesive tape. It has become a widely used rehabilitation modality for the prevention and treatment of musculoskeletal disorders. The objective of this study was to verify the effect of the application of Kinesio Taping Denko® in three conditions (facilitation, inhibition, and placebo on the electromyographic activity of the quadriceps and hamstrings muscles on facilitating or inhibiting the muscle function and on the perceived exertion during the barbell back squat exercise in healthy male subjects. Methods: It was a randomized, single-blinded and controlled study in which 18 males (28.0 ± 6.7 years old; 85.8 ± 8.2 kg mass; 1.80 ± 0.07 m tall; 0.97 ± 0.04 m lower limb length performed barbell back squat exercise with different conditions of Kinesio Taping Denko® applications: Facilitation, inhibition and placebo. Previous to the mentioned conditions, all individuals were assessed without applying kinesio Taping Denko® during the exercise. OMNI scale was used after each set for perceived exertion evaluation. No differences (p < 0.05 in the electromyographic activity of the biceps femoris, vastus lateralis and vastus medialis or OMNI scale were recorded under any conditions. Conclusion: The results show that the kinesio taping denko®may not alter the magnitude of the electromyography activity of vastus lateralis, vastus medialis, and biceps femoris during the squat exercise. Furthermore, the perceived exertion was not affected by the kinesio taping denko® application.

  4. EFFECT OF KINESIO TAPING VERSUS ATHLETIC TAPING ON PAIN AND MUSCLE PERFORMANCE IN LATERAL EPICONDYLALGIA

    Rashi Goel; Ganesh Balthilaya; Ravi Shankar Reddy

    2015-01-01

    Lateral epicondylalgia is a degenerative musculoskeletal pain state characterised by pain over the lateral humeral epicondyle resulting in absenteeism from work and daily living activities. It is most prevalent in jobs requiring repetitive manual activities of the upper extremity. Literature describes different treatment options for lateral Epicondylalgia but there is no consensus about the most efficacious intervention strategy. Taping (athletic/kinesio) has been used successfully in various...

  5. Fermilab-built SSC Collider dipoles using low temperature curing insulation systems with and without glass tape

    Polyimide with epoxy impregnated glass tape was used in Fermilab baseline design of several SSC Collider dipole magnets which were used in the SSC Accelerator Systems String Test (ASST). Later in the magnet R ampersand D program several magnets were built using conductor insulation in which adhesive that cures at 140 degrees C was coated directly on the polyimide film. Some alternate materials for coil end parts and coil windings were also tested. The data taken during the tests of these magnets are compared with results from 10-stack studies of the two insulation systems and design expectations and correlated with changes in assembly methods

  6. Adhesion enhancement of hard coatings deposited on flexible plastic substrates using an interfacial buffer layer

    Liu, Day-Shan; Wu, Cheng-Yang, E-mail: dsliu@sunws.nfu.edu.t [Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Taiwan 63201 (China)

    2010-05-05

    An interfacial buffer layer has been developed to improve the silicon oxide (SiO{sub x}) hard coating adhered to a flexible plastic substrate through a consecutive plasma-enhanced chemical vapour deposition process, using the same organosilicon precursor. The adhesion of the hard coating structure, correlated with the buffer layer thickness, was rated by the standard tape-peeling test. An excellent adhesion (rank 5B) was available for the hard coating structure with an interfacial buffer layer deposited on polycarbonate and polymethylmethacrylate substrates. The degree of adhesion strength for the hard coating structures was measured by the standard scratch test. The increase in the critical loads determined from the scratch test was well correlated with the tape-peeling test results. The hard coating structure showed excellent adhesion and also corresponded to a minimum residual stress. The mechanisms responsible for the adhesion enhancement were linked to the specific chemical bonds of the hydrocarbon C-H bond, and cross-linking Si-C bond appeared in the interfacial buffer layer. The C-H bond was recognized as a hydrophobic group that was favourable for minimizing the adsorption of ambient contaminants potentially arising during deposition, while the cross-linking Si-C bond functioned to compensate the large tensile stress residing in the SiO{sub x} hard coating. As a consequence, a close contact and progressive morphology resulting in excellent adhesion were observed at the interface of the hard coating structure with an interfacial buffer layer.

  7. Recovery of DNA from latent fingerprint tape lifts archived against matte acetate.

    Steadman, Shelly A; Hoofer, Steven R; Geering, Sarah C; King, Stephanie; Bennett, Marc A

    2015-05-01

    This study was driven by court order to examine methods to remove, extract, and STR-type potential DNA entrapped between latent fingerprint lifting tape and matte acetate that was collected from a 1977 crime scene. Results indicate that recovery of appreciable quantities of DNA is more challenging once adhesive is attached to matte acetate cards and even more difficult when fixed following black powder enhancement. STR amplification of extracts from entrapped fingermarks collected following the dusting/lifting procedure did not produce robust profiles, and extraneous peaks not expressed by print donors were detected for some samples. A hearing was set to argue whether there was DNA remaining to be tested, and if so, whether that DNA could be exculpatory in this postconviction matter. The studies herein provided the basis for the court's decision to not require the testing. PMID:25702951

  8. Tape Transfer Atomization Patterning of Liquid Alloys for Microfluidic Stretchable Wireless Power Transfer

    Jeong, Seung Hee; Hjort, Klas; Wu, Zhigang

    2015-02-01

    Stretchable electronics offers unsurpassed mechanical compliance on complex or soft surfaces like the human skin and organs. To fully exploit this great advantage, an autonomous system with a self-powered energy source has been sought for. Here, we present a new technology to pattern liquid alloys on soft substrates, targeting at fabrication of a hybrid-integrated power source in microfluidic stretchable electronics. By atomized spraying of a liquid alloy onto a soft surface with a tape transferred adhesive mask, a universal fabrication process is provided for high quality patterns of liquid conductors in a meter scale. With the developed multilayer fabrication technique, a microfluidic stretchable wireless power transfer device with an integrated LED was demonstrated, which could survive cycling between 0% and 25% strain over 1,000 times.

  9. Tape transfer atomization patterning of liquid alloys for microfluidic stretchable wireless power transfer.

    Jeong, Seung Hee; Hjort, Klas; Wu, Zhigang

    2015-01-01

    Stretchable electronics offers unsurpassed mechanical compliance on complex or soft surfaces like the human skin and organs. To fully exploit this great advantage, an autonomous system with a self-powered energy source has been sought for. Here, we present a new technology to pattern liquid alloys on soft substrates, targeting at fabrication of a hybrid-integrated power source in microfluidic stretchable electronics. By atomized spraying of a liquid alloy onto a soft surface with a tape transferred adhesive mask, a universal fabrication process is provided for high quality patterns of liquid conductors in a meter scale. With the developed multilayer fabrication technique, a microfluidic stretchable wireless power transfer device with an integrated LED was demonstrated, which could survive cycling between 0% and 25% strain over 1,000 times. PMID:25673261

  10. 21 CFR 878.4730 - Surgical skin degreaser or adhesive tape solvent.

    2010-04-01

    ... SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4730... exempt from the premarket notification procedures in subpart E of part 807 of this chapter, subject...

  11. Tissue adhesives in otorhinolaryngology

    Schneider, Gerlind

    2009-01-01

    Full Text Available The development of medical tissue adhesives has a long history without finding an all-purpose tissue adhesive for clinical daily routine. This is caused by the specific demands which are made on a tissue adhesive, and the different areas of application. In otorhinolaryngology, on the one hand, this is the mucosal environment as well as the application on bones, cartilage and periphery nerves. On the other hand, there are stressed regions (skin, oral cavity, pharynx, oesophagus, trachea and unstressed regions (middle ear, nose and paranasal sinuses, cranial bones. But due to the facts that adhesives can have considerable advantages in assuring surgery results, prevention of complications and so reduction of medical costs/treatment expenses, the search for new adhesives for use in otorhinolaryngology will be continued intensively. In parallel, appropriate application systems have to be developed for microscopic and endoscopic use.

  12. Reflectance characterization of tape-based plasma mirrors

    Shaw, B. H.; Steinke, S.; van Tilborg, J.; Leemans, W. P.

    2016-06-01

    Specular reflections of relativistic laser pulses from an overdense plasma mirror (PM) were studied experimentally. The pointing stability of the PM and reflectance of the input laser were characterized. The solid material used for the PM was a VHS tape. This study was done for the magnetic and plastic sides of the VHS tape, and for input light of both s and p-polarizations. The laser pulse fluence was varied by changing the focus position relative to the tape surface, which changed the spot size at the tape. The pointing fluctuations of the reflected pulses caused by the PM were ≃1 mrad. A peak reflectance of 82% was obtained from the plastic surface of the VHS tape when focusing s-polarized light 4 mm from the tape surface (the wavefront quality was confirmed to be conserved). An analytic model was developed to understand the physics of the interaction for each tape material and polarization. Fitting of our model parameters to the experimental results allowed an estimate of the key plasma parameters such as plasma expansion velocity, ionization intensity, and fraction of absorbed laser energy.

  13. Aqueous Tape Casting Process with Styrene-acrylic Latex Binder

    CUI Xue-min; OUYANG Shi-xi; HUANG Yong; YU Zhi-yong; ZHAO Shi-ke; WANG Chang-an

    2004-01-01

    A commercial styrene-acrylic latex binder has been investigated as a good binder for aqueous Al2O3 suspensions tape-casting process. This paper focuses on the forming film mechanism of latex binder, the rheological behaviors of the suspensions, physical properties of green tapes and drying process of aqueous slurries with latex binder system. The drying process of the alumina suspensions is shown to follow a two-stage mechanism (the first stage: evaporation controlled process; and the second stage: diffusion controlled process). During the drying stage of the suspensions, the compressive force presses the latex particles and makes them be distorted, which results in cross-linking structure in contacted latex particles of the solidified tapes.A smooth-surface and high-strength green tape was fabricated by aqueous tape casting with latex binder system. The results from the SEM images of the crossing section microstructure of green tapes show that the latex is a very suitable binder for aqueous tape casting.

  14. Biomechanics of shear-sensitive adhesion in climbing animals: peeling, pre-tension and sliding-induced changes in interface strength.

    Labonte, David; Federle, Walter

    2016-09-01

    Many arthropods and small vertebrates use adhesive pads for climbing. These biological adhesives have to meet conflicting demands: attachment must be strong and reliable, yet detachment should be fast and effortless. Climbing animals can rapidly and reversibly control their pads' adhesive strength by shear forces, but the mechanisms underlying this coupling have remained unclear. Here, we show that adhesive forces of stick insect pads closely followed the predictions from tape peeling models when shear forces were small, but strongly exceeded them when shear forces were large, resulting in an approximately linear increase of adhesion with friction. Adhesion sharply increased at peel angles less than ca 30°, allowing a rapid switch between attachment and detachment. The departure from classic peeling theory coincided with the appearance of pad sliding, which dramatically increased the peel force via a combination of two mechanisms. First, partial sliding pre-stretched the pads, so that they were effectively stiffer upon detachment and peeled increasingly like inextensible tape. Second, pad sliding reduces the thickness of the fluid layer in the contact zone, thereby increasing the stress levels required for peeling. In combination, these effects can explain the coupling between adhesion and friction that is fundamental to adhesion control across all climbing animals. Our results highlight that control of adhesion is not solely achieved by direction-dependence and morphological anisotropy, suggesting promising new routes for the development of controllable bio-inspired adhesives. PMID:27605165

  15. Evaluation on High-temperature Adhesion Performance of Hot-applied Sealant for Asphalt Pavement

    LI Feng; LI Tinggang; SHI Xiaopei

    2014-01-01

    In order to investigate the high-temperature performances of the asphalt pavement hot-applied sealant, as well as to reduce failures of the sealant pullout, the softening point test and the flow test (two existing methods for evaluating high-temperature performances) were conducted. It was found that both tests could not accurately reflect the adhesion performances of the sealant at high temperatures. For this purpose, the adhesion test for PSAT (pressure sensitive adhesive tape) has been taken as a reference to develop a device that is suitable for evaluating the adhesion performances, by modifying relevant test parameters according to the road conditions at high temperatures. Thirteen common sealants were tested in the modified adhesion test, softening point test and flow test. The experimental results show that no significant correlation (p>0.05) exists between the adhesion value, softening point, adhesion value and flow value;while a significant correlation (p<0.05) exists between the softening point and flow value. The modified adhesion test is efficient in distinguishing the high-temperature adhesion performances of different sealants, and can be used as a standard method for evaluating such performances.

  16. Blister Test for Measurements of Adhesion and Adhesion Degradation of Organic Polymers on AA2024-T3

    Rincon Troconis, Brendy Carolina

    A key parameter for the performance of corrosion protective coatings applied to metals is adhesion. Surface preparation prior to coating application is known to be critical, but there is a lack of understanding of what controls adhesion. Numerous techniques have been developed in the last decades to measure the adhesion strength of coatings to metals. Nonetheless, they are generally non-quantitative, non-reproducible, performed in dry conditions, or overestimate adhesion. In this study, a quantitative and reproducible technique, the Blister Test (BT), is used. The BT offers the ability to study the effects of a range of parameters, including the presence or absence of a wetting liquid, and simulates the stress situation in the coating/substrate interface. The effects of roughness and surface topography were studied by the BT and Optical Profilometry, using AA2024-T3 substrates coated with polyvinyl butyral (PVB). Random abrasion generated a surface with lower average roughness than aligned abrasion due to the continual cross abrasion of the grooves. The BT could discern the effects of different mechanical treatments. An adhesion strength indicator was defined and found to be a useful parameter. The effectiveness of standard adhesion techniques such as ASTM D4541 (Pull-off Test) and ASTM D3359 (Tape Test) was compared to the BT. Also, different attempts to measure adhesion and adhesion degradation of organic polymers to AA2024-T3 were tested. The pull-off test does not produce adhesive failure across the entire interface, while the tape test is a very qualitative technique and does not discern between the effects of different coating systems on the adhesion performance. The BT produces adhesive failure of the primer studied, is very reproducible, and is able to rank different coating systems. Therefore, it was found to be superior to the others. The approaches tested for adhesion degradation were not aggressive enough to have a measurable effect. The effects of

  17. Empirically Bounding of Space Booms with Tape Spring Hinges

    Jennings, A. L.; Black, J; C. Allen

    2013-01-01

    Self-deploying structures seek to provide a compact launch package for large, lightweight satellite booms. One self-deploying method is a foldable tape spring. This paper examines the large scale behavior of a boom attached by a tape spring hinge during mock deployments. A boom attached by tape spring to a rigid stand was released and the boom bounced up to 60° before coming to rest (as opposed to snap-through behavior). These large amplitude bounces can cause the boom to collide with sensors...

  18. Experimental Tape Casting of Adjacently Graded Materials for Magnetic Refrigeration

    Bulatova, Regina

    graded thin films. The motivation to create such adjacently segmented structures stemmed from a search of material and a materials design alternative to the expensive rare earth element gadolinium which is widely used as a magnetic regenerator in the emerging magnetic refrigeration technology....... Conventional tape casting involves the preparation of specially formulated slurry, which is cast by a blade to a thin flat tape, then dried into flexible so-called green solid tape and can be subsequently sintered into a hard ceramic material. The principal difference and, at the same time, a challenge...

  19. Microstructure and properties of Bi-2223/Ag/Ni tapes

    2012-01-01

    To reduce the production cost of Bi-2223 superconducting tapes, Bi-2223/Ag/Ni tapes were fabricated by the powder-in-tube process. The effect of heat treatment on the microstructure and critical current of the Bi-2223/Ag/Ni tapes were studied. The phase compositions of the samples were characterized using XRD. The microstructure was observed using SEM. Experimental results indicate that higher temperature is more conducive to the formation of Bi-2223 phase at an atmosphere of 8.5% O 2 . After the two-step h...

  20. Time Complexity of Tape Reduction for Reversible Turing Machines

    Axelsen, Holger Bock

    2012-01-01

    Studies of reversible Turing machines (RTMs) often differ in their use of static resources such as the number of tapes, symbols and internal states. However, the interplay between such resources and computational complexity is not well-established for RTMs. In particular, many foundational results...... in reversible computing theory are about multitape machines with two or more tapes, but it is non-obvious what these results imply for reversible complexity theory. Here, we study how the time complexity of multitape RTMs behaves under reductions to one and two tapes. For deterministic Turing...

  1. Texture of YBCO/Ag PIT-tapes

    Paturi, P.; Kulmala, T.; Raittila, J.;

    2004-01-01

    YBCO/Ag tapes prepared using nanosized YBCO powder are currently the best powder-in-tube YBCO tapes with their I-c = 5.02 A and J(c) = 3300 A/cm(2) in self-field and at 77 K. The texture of these tapes was studied by removing the silver with mercury and then measuring the texture of the surface......-section should have even higher I-c. (C) 2004 Elsevier B.V. All rights reserved....

  2. Preparing superconducting nanopowder based YBCO/Ag tapes

    Paturi, P.; Raittila, J.; Grivel, J.C.; Huhtinen, H.; Seifi, B.; Laiho, R.; Andersen, N.H.

    YBCO nanopowder consisting of 1-3 nm thick and 40 nm wide particles has been used to make silver clad superconducting tapes. After annealing in nitrogen at 945 degreesC for 10 h a critical current of 5.02 A (3300 A/cm(2)) was attained, Annealing in mixed atmosphere of oxygen and nitrogen was also...... carried out and this procedure produced tapes with a critical current of 2.83 A (2200 A/cm(2)). These tapes show very good characteristics in magnetic fields. (C) 2002 Elsevier Science B.V. All rights reserved....

  3. An automated magnetic tape vault at CERN computer center

    Claudia Marcelloni

    2008-01-01

    The rapidly changing data processing landscape the underlying long-term storage technology remains the tried and tested magnetic tape. This robust and mature technology is used to store the complete LHC data set, from which a fraction of the data is copied to overlying disk caches for fast and widespread access. The handling of the magnetic tape cartridges is now fully automated, as they are racked in vaults where they are moved between the storage shelves and the tape drives by robotic arms.

  4. Handbook of adhesion

    Packham, D E

    2006-01-01

    This second edition of the successful Handbook of Adhesion provides concise and authoritative articles covering many aspects of the science and technology associated with adhesion and adhesives. It is intended to fill a gap between the necessarily simplified treatment of the student textbook and the full and thorough treatment of the research monograph and review article. The articles are structured in such a way, with internal cross-referencing and external literature references, that the reader can build up a broader and deeper understanding, as their needs require.This second edition includ

  5. Lactobacillus Adhesion to Mucus

    Maxwell L. Van Tassell

    2011-05-01

    Full Text Available Mucus provides protective functions in the gastrointestinal tract and plays an important role in the adhesion of microorganisms to host surfaces. Mucin glycoproteins polymerize, forming a framework to which certain microbial populations can adhere, including probiotic Lactobacillus species. Numerous mechanisms for adhesion to mucus have been discovered in lactobacilli, including partially characterized mucus binding proteins. These mechanisms vary in importance with the in vitro models studied, which could significantly affect the perceived probiotic potential of the organisms. Understanding the nature of mucus-microbe interactions could be the key to elucidating the mechanisms of probiotic adhesion within the host.

  6. Impact limiter retention using a tape joint

    Sandia National Laboratories has developed the Beneficial Uses Shipping System (BUSS) cask for the transportation of up to a megacurie of radiation source capsules. This work was done under contract to the Department of Energy. The BUSS cask employs polyurethane foam impact limiters that fit onto the ends of the cask. A foam impact limiter takes energy out of the system during a hypothetical accident condition by allowing foam crush and large deformations to occur. This, in turn, precludes high stresses or deformations from occurring in the cask. Depending on the nature of the impact limiters and large deformations experienced, retaining the limiters on a cask during a 9 meter regulatory drop poses a design challenge. Impact limiter retention becomes a concern to ensure the cask does not experience higher decelerations during secondary impacts without impact limiters in place. During the 9 meter drop, the impact limiters absorb the energy required to confine the cask deceleration to acceptable levels. However, if the impact limiters were removed from the cask due to initial impact, higher cask stress levels could occur during any secondary or rebound effects. A tape joint has been designed to solve the problem of retaining impact limiters onto the BUSS cask during impact loadings

  7. Shuttle-Data-Tape XML Translator

    Barry, Matthew R.; Osborne, Richard N.

    2005-01-01

    JSDTImport is a computer program for translating native Shuttle Data Tape (SDT) files from American Standard Code for Information Interchange (ASCII) format into databases in other formats. JSDTImport solves the problem of organizing the SDT content, affording flexibility to enable users to choose how to store the information in a database to better support client and server applications. JSDTImport can be dynamically configured by use of a simple Extensible Markup Language (XML) file. JSDTImport uses this XML file to define how each record and field will be parsed, its layout and definition, and how the resulting database will be structured. JSDTImport also includes a client application programming interface (API) layer that provides abstraction for the data-querying process. The API enables a user to specify the search criteria to apply in gathering all the data relevant to a query. The API can be used to organize the SDT content and translate into a native XML database. The XML format is structured into efficient sections, enabling excellent query performance by use of the XPath query language. Optionally, the content can be translated into a Structured Query Language (SQL) database for fast, reliable SQL queries on standard database server computers.

  8. A scrambling technique for protecting video images recorded on tape

    This paper reports that some of the present unattended video surveillance systems record short sequences of video images or scenes on tape. Each of these scenes consist of short bursts of 6 to 8 video frames. The Video Scrambling System can be inserted in the input to the video recorder to scramble the video image prior to recording. The video tape will then contain a series of scrambled scenes each of which has been scrambled differently. The video tape with the scrambled images must now be played back through the Video Scrambling System to descramble the images for viewing. The images cannot be unscrambled without the proper codes having been inserted into the equipment. An attempt to insert false images into the tape can be easily detected since the equipment will not descramble an image that has not been properly scrambled. The equipment will demonstrate the scrambling and unsrambling technique and how the resulting images look when descrambled

  9. Scotch-Tape Mirror for Hard X-rays Project

    National Aeronautics and Space Administration — The project is to build a grazing incidence mirror for hard X-rays (E>20 keV) using a “scotch-tape” design, in which a thin plastic tape with a...

  10. Cheap Tape May Keep Blisters Off Runners' Feet

    ... news/fullstory_158250.html Cheap Tape May Keep Blisters Off Runners' Feet Researchers find an easy, effective ... 11, 2016 MONDAY, April 11, 2016 (HealthDay News) -- Blisters are the bane of every runner, but a ...

  11. OXREPT: ORINC and experimental data to RELAP plot tape interface

    A computer program which transforms THTF experimental data and ORINC output data into the RELAP4/MOD5 plot/restart tape format is described. Input requirements and program characteristics are discussed

  12. Measure Guideline: Guidance on Taped Insulating Sheathing Drainage Planes

    Grin, A. [Building Science Corporation, Somerville, MA (United States); Lstiburek, J. [Building Science Corporation, Somerville, MA (United States)

    2014-09-01

    The goal of this research is to provide durable and long-term water management solutions using exterior insulating sheathing as part of the water management system. It is possible to tape or seal the joints in insulating sheathing to create a drainage plane and even an air control layer. There exists the material durability component of the tape as well as the system durability component being the taped insulating sheathing as the drainage plane. This measure guideline provides best practice and product recommendations from the interviewed contractors and homebuilders who collectively have a vast amount of experience. Three significant issues were discussed with the group, which are required to make taped insulating sheathing a simple, long-term, and durable drainage plane: horizontal joints should be limited or eliminated wherever possible; where a horizontal joint exists use superior materials; and frequent installation inspection and regular trade training are required to maintain proper installation.

  13. ICI optical data storage tape: An archival mass storage media

    Ruddick, Andrew J.

    1993-01-01

    At the 1991 Conference on Mass Storage Systems and Technologies, ICI Imagedata presented a paper which introduced ICI Optical Data Storage Tape. This paper placed specific emphasis on the media characteristics and initial data was presented which illustrated the archival stability of the media. More exhaustive analysis that was carried out on the chemical stability of the media is covered. Equally important, it also addresses archive management issues associated with, for example, the benefits of reduced rewind requirements to accommodate tape relaxation effects that result from careful tribology control in ICI Optical Tape media. ICI Optical Tape media was designed to meet the most demanding requirements of archival mass storage. It is envisaged that the volumetric data capacity, long term stability and low maintenance characteristics demonstrated will have major benefits in increasing reliability and reducing the costs associated with archival storage of large data volumes.

  14. SMART Tape For Structural Health Monitoring of Rocket Engines Project

    National Aeronautics and Space Administration — Acellent Technologies, Inc. proposes to develop a SMART Tape system that can be used to perform rapid non-destructive evaluation in real time and provide long-term...

  15. Smart Tape For Structural Health Monitoring of Rocket Engines Project

    National Aeronautics and Space Administration — Acellent Technologies, Inc. proposes to develop a SMART TAPE system that can be used to perform rapid non-destructive evaluation in real time and provide long-term...

  16. DICOM implementation on online tape library storage system

    Komo, Darmadi; Dai, Hailei L.; Elghammer, David; Levine, Betty A.; Mun, Seong K.

    1998-07-01

    The main purpose of this project is to implement a Digital Image and Communications (DICOM) compliant online tape library system over the Internet. Once finished, the system will be used to store medical exams generated from U.S. ARMY Mobile ARMY Surgical Hospital (MASH) in Tuzla, Bosnia. A modified UC Davis implementation of DICOM storage class is used for this project. DICOM storage class user and provider are implemented as the system's interface to the Internet. The DICOM software provides flexible configuration options such as types of modalities and trusted remote DICOM hosts. Metadata is extracted from each exam and indexed in a relational database for query and retrieve purposes. The medical images are stored inside the Wolfcreek-9360 tape library system from StorageTek Corporation. The tape library system has nearline access to more than 1000 tapes. Each tape has a capacity of 800 megabytes making the total nearline tape access of around 1 terabyte. The tape library uses the Application Storage Manager (ASM) which provides cost-effective file management, storage, archival, and retrieval services. ASM automatically and transparently copies files from expensive magnetic disk to less expensive nearline tape library, and restores the files back when they are needed. The ASM also provides a crash recovery tool, which enable an entire file system restore in a short time. A graphical user interface (GUI) function is used to view the contents of the storage systems. This GUI also allows user to retrieve the stored exams and send the exams to anywhere on the Internet using DICOM protocols. With the integration of different components of the system, we have implemented a high capacity online tape library storage system that is flexible and easy to use. Using tape as an alternative storage media as opposed to the magnetic disk has the great potential of cost savings in terms of dollars per megabyte of storage. As this system matures, the Hospital Information Systems

  17. Tape Stripping Technique for Stratum Corneum Protein Analysis

    Maja-Lisa Clausen; H.-C. Slotved; Krogfelt, Karen A.; Tove Agner

    2016-01-01

    The aim of this study was to investigate the amount of protein in stratum corneum in atopic dermatitis (AD) patients and healthy controls, using tape stripping technique. Furthermore, to compare two different methods for protein assessment. Tape stripping was performed in AD patients and healthy controls to collect stratum corneum samples and subsequently analysed with two different methods: Squame Scan, which gives an estimate of total protein (soluble and insoluble) and Micro BCA protein de...

  18. AC power losses in Bi-2223/Ag HTS tapes

    Full text: We report measurements at 77 K of the transport ac losses of Bi-2223/Ag composite tapes. The investigated tapes vary from single filament to multifilament construction and include both conventional tapes and other conductor shapes with twisted filaments. The self-field ac losses were determined at 77 K and 60 Hz as a function of ac current amplitude (0 - 100 A). We observe different behaviour among tapes depending on their quality and strain history. For 'good' virgin tapes the experimental data are well described by the Norris equations for the dependence of power loss P on the amplitude Im of the transport current. The data of good monofilament tapes are fitted to the Norris equation P ∼ Imn for an elliptical cross section (ie. n = 3) and the data of good multifilament tapes are fitted to the Norris equation for a rectangular strip (ie. n = 4). Many specimens, however, show a range of behaviour with lower values of n. Based on our work on the effect of strain on the dc transport properties of tapes, we carried out detailed investigations of the effect of controlled applied bend strain on the ac loss. Our results show that irreversible damage to superconducting filaments (ie. cracks) cause the ac loss to rise and n to decrease with increasing strain. In addition, applied strains much greater than the irreversible strain limit cause the ac loss to increase by several orders of magnitude and become ohmic in character with n = 2. Theoretical work is in progress to model the observed behaviour

  19. Adhesion of Lunar Dust

    Walton, Otis R.

    2007-04-01

    This paper reviews the physical characteristics of lunar dust and the effects of various fundamental forces acting on dust particles on surfaces in a lunar environment. There are transport forces and adhesion forces after contact. Mechanical forces (i.e., from rover wheels, astronaut boots and rocket engine blast) and static electric effects (from UV photo-ionization and/or tribo-electric charging) are likely to be the major contributors to the transport of dust particles. If fine regolith particles are deposited on a surface, then surface energy-related (e.g., van der Walls) adhesion forces and static-electric-image forces are likely to be the strongest contributors to adhesion. Some measurement techniques are offered to quantify the strength of adhesion forces. And finally some dust removal techniques are discussed.

  20. Leukocyte Adhesion Deficiency (LAD)

    ... Content Marketing Share this: Main Content Area Leukocyte Adhesion Deficiency (LAD) LAD is an immune deficiency in ... are slow to heal also may have LAD. Treatment and Research Doctors prescribe antibiotics to prevent and ...

  1. Increasing the efficiency of tape-based storage backends

    Bessone, N; Murray, S; Taurelli, G; CERN. Geneva. IT Department

    2010-01-01

    HSM systems such as the CERN’s Advanced STORage manager (CASTOR) [1] are responsible for storing Petabytes of data which is first cached on disk and then persistently stored on tape media. The contents of these tapes are regularly repacked from older, lower-density media to new-generation, higher-density media in order to free up physical space and ensure long term data integrity and availability. With the evolution of price decay and higher capacity of disk (and flash memory) based storage, our future vision for tape usage is to move away from serving on demand, random, per-file access to non-disk cached files, and to move towards loosely coupled, efficient bulk data transfers where large-volume data sets are stored and retrieved in aggregations, fully exploiting the stream-based nature of tape media. Mechanisms for grouped migration policies and priorities have been implemented, and an innovative tape format optimized for data aggregations is being developed. This new tape format will also allow for incre...

  2. AC losses in circular arrangements of parallel superconducting tapes

    Kühle (fratrådt), Anders Van Der Aa; Træholt, Chresten; Däumling, Manfred; Olsen, Søren Krüger; Tønnesen, Ole

    The DC and AC properties of superconducting tapes connected in parellel and arranged in a single closed layer on two tubes (correspondig to power cable models with infinite pitch) with different diameters are compared. We find that the DC properties, i.e. the critical currents of the two arrangem......The DC and AC properties of superconducting tapes connected in parellel and arranged in a single closed layer on two tubes (correspondig to power cable models with infinite pitch) with different diameters are compared. We find that the DC properties, i.e. the critical currents of the two...... arrangements, scale with the number of tapes and hence appear to be independent of the diameter.However, the AC loss per tape (for a given current per tape) appears to decrease with increasing diameter of the circular arrangement. Compared to a model for the AC loss in a continuous superconducting layer...... (Monoblock model) the measured values are about half an order of magnitude higher than expected for the small diameter arrangement. When compared to the AC loss calculated for N individual superconducting tapes using a well known model ( Norris elliptical) the difference is slightly smaller....

  3. The effect of Kinesio Taping on handgrip strength.

    Lemos, Thiago Vilela; Pereira, Kelice Cristina; Protássio, Carina Celedonio; Lucas, Lorrane Barbosa; Matheus, Joao Paulo C

    2015-03-01

    [Purpose] The purpose of this research was to evaluate the change in muscle function induced by a Kinesio Tape application with no or moderate tension, to the dominant and non-dominant arms. [Subjects and Methods] This research was a quantitative study, in which 75 women participated. The subjects, aged 18-30 years, were divided into 3 groups, Kinesio, Kinesio without Tension, and Control, and they were assessed before the taping intervention and after 30 minutes, 24 hours, and 48 hours of taping. [Results] The Kinesio group subjects demonstrated an increase in handgrip strength after 30 minutes, 24 hours, and 48 hours of tape application compared to control. A statistically significant increase in strength was observed in the Kinesio group comparison to the Control after 24 hours and 48 hours for the right hand, and after 48 hours for the left hand. Improvement in the Kinesio group compared to the Kinesio without Tension was observed only after 24 hours of taping application, and only in the right hand. [Conclusion] The Kinesio Taping method augmented the handgrip strength of healthy women, and the increase in grip strength was maintained for 48 hours after its application; the dominant hand demonstrated the greatest strength values. PMID:25931682

  4. Kinesio Taping effects on knee extension force among soccer players

    Maysa V. G. B. Serra

    2015-04-01

    Full Text Available Background : Kinesio Taping (KT is widely used, however the effects of KT on muscle activation and force are contradictory. Objective : To evaluate the effects of KT on knee extension force in soccer players. Method: This is a clinical trial study design. Thirty-four subjects performed two maximal isometric voluntary contractions of the lower limbs pre, immediately post, and 24 hours after tape application on the lower limbs. Both lower limbs were taped, using K-Tape and 3M Micropore tape randomly on the right and left thighs of the participants. Isometric knee extension force was measured for dominant side using a strain gauge. The following variables were assessed: peak force, time to peak force, rate of force development until peak force, time to peak rate of force development, and 200 ms pulse. Results : There were no statistically significant differences in the variables assessed between KT and Micropore conditions (F=0.645, p=0.666 or among testing sessions (pre, post, and 24h after (F=0.528, p=0.868, and there was no statistical significance (F=0.271, p=0.986 for interaction between tape conditions and testing session. Conclusion: KT did not affect the force-related measures assessed immediately and 24 hours after the KT application compared with Micropore application, during maximal isometric voluntary knee extension.

  5. Open data tapes of ROSA-II tests

    Tests simulating a postulated loss-of-coolant accident and performance of ECCS in a PWR were carried out with the ROSA-II test facility. The test data were already published as data reports (No.1 -- 13 and 2 for UHI tests). For the purpose of general use of the ROSA-II test data, open data tapes recording the data are made available in the calculation center of JAERI. Following the procedures in the present manual, anyone who utilizes the calculation center can obtain the test data as figures and numerical tables. On the other hand, anyone who wishes to process the open data tapes with other computer system than that in the calculation center may apply to Reactor Safety Laboratory 1, JAERI, for reproduction of the tapes and can obtain the same after suitable conversion of the calculation program for that computer system. The present manual should be followed in order to obtain the data properly and to avoid elimination and damage of the open tapes. By arrangements with the calculation center, test data on the open tapes will be eliminated in future; when, however, the same data tapes in Reactor Safety Laboratory 1 will be made available for general use. (author)

  6. AC losses in circular arrangements of parallel superconducting tapes

    Kühle (fratrådt), Anders Van Der Aa; Træholt, Chresten; Däumling, Manfred;

    1998-01-01

    The DC and AC properties of superconducting tapes connected in parellel and arranged in a single closed layer on two tubes (correspondig to power cable models with infinite pitch) with different diameters are compared. We find that the DC properties, i.e. the critical currents of the two arrangem......The DC and AC properties of superconducting tapes connected in parellel and arranged in a single closed layer on two tubes (correspondig to power cable models with infinite pitch) with different diameters are compared. We find that the DC properties, i.e. the critical currents of the two...... arrangements, scale with the number of tapes and hence appear to be independent of the diameter.However, the AC loss per tape (for a given current per tape) appears to decrease with increasing diameter of the circular arrangement. Compared to a model for the AC loss in a continuous superconducting layer...... (Monoblock model) the measured values are about half an order of magnitude higher than expected for the small diameter arrangement. When compared to the AC loss calculated for N individual superconducting tapes using a well known model ( Norris elliptical) the difference is slightly smaller....

  7. Management of adhesive capsulitis

    Neviaser, Andrew

    2015-01-01

    Kristen L Stupay,1 Andrew S Neviaser2 1Tulane University School of Medicine, New Orleans, LA, USA; 2George Washington University Medical Faculty Associates, Washington, DC, USA Abstract: Adhesive capsulitis of the shoulder is a condition of capsular contracture that reduces both active and passive glenohumeral motion. The cause of adhesive capsulitis is not known but it is strongly associated with endocrine abnormalities such as diabetes. Diverse terminology and the absence of definitive cri...

  8. Učinkovitost uporabe elastičnih lepilnih trakov (kinesio taping): The effectiveness of kinesio taping:

    Zalar, Metka

    2011-01-01

    After the Olympic Games in Beijing in 2008, kinesio taping has spread widely all over the world. This therapeutic procedure is used in combination with other terapeutic procedures in the treatment of various musculosceletal and neuromuscular disorders. The purpose of this article was to examine a variety of studies examining the effectiveness of kinesio taping. The articles were retrieved from scientific journals and web pages. The article reviews 18 studies. Opinions of the authors about the...

  9. Gecko-Inspired, Controlled Adhesion and Its Applications

    Menguc, Yigit

    might replace VelcroRTMand zippers in clothing, and might become a critical component in sports gear, e.g. soccer goal keeper and rock climber gloves. The reversible, controllable nature of the adhesion, as well as its incredible bonding strength, suggests more impressive possibilities for gecko-inspired adhesives: perhaps it might act as a fastener for temporary or emergency construction. We might yet see rolls of single-sided and double-sided gecko-tape sold in hardware stores, not as a replacement for duct tape, but as a replacement for nails, staples and screws. (Abstract shortened by UMI.)

  10. Obituary: Gerald Frederick Tape, 1915-2005

    Hughes, Robert E.

    2007-12-01

    Gerald Frederick Tape, a distinguished science statesman and administrator, died on November 20, 2005. Jerry, as he was known to all, took on many diverse and important responsibilities throughout his life and dealt with them with quiet authority and grace. This was the hallmark of his life. The Board of Trustees of Associated Universities, Inc., which he served for many years, expressed this in its condolences, writing "Jerry personified integrity, thoroughness and dedication. His sensitivity for the views of others, his sincerity, his personal commitment, his calm approach and his unfailing good humor were all greatly admired and respected." Jerry was born in Ann Arbor, Michigan on May 29, 1915 but grew up in Milan, a nearby country farm community, and in Ypsilanti where his father was Principal of Michigan State Normal College, which later became Eastern Michigan University (EMU). It was there that he first became interested in physics. It was there also that he met and courted Josephine Waffen, who later would become his wife for more than sixty-six years and fill their lives with three loving sons, Walter, James, and Thomas. Upon graduation from EMU, Jerry was awarded a scholarship that took him to the University of Michigan where he earned a Ph.D. in Physics, researching the decay modes of the radioisotopes of iodine. In the Fall of 1939, during the waning days of the Great Depression, he was offered an Instructorship in the Physics Department of Cornell University, a promising start for a fruitful academic career. He brought his bride Jo to Ithaca and joined the cyclotron group under Robert Bacher and Willy Higginbotham while devising a laboratory course in nuclear techniques for graduate students. Bacher and Higginbotham soon left Cornell to join a new wartime laboratory at the Massachusetts Institute of Technology (MIT) and many other colleagues were "drafted" for war work. Bacher persuaded Jerry to join him at the MIT Radiation Laboratory in February

  11. Adhesion and Thin-Film Module Reliability: Preprint

    McMahon, T. J.; Jorgensen, G. J.

    2006-05-01

    Among the infrequently measured but essential properties for thin-film (T-F) module reliability are the interlayer adhesion and cohesion within a layer. These can be cell contact layers to glass, contact layers to the semiconductor, encapsulant to cell, glass, or backsheet, etc. We use an Instron mechanical testing unit to measure peel strengths at 90{sup o} or 180{sup o} and, in some cases, a scratch and tape pull test to evaluate inter-cell layer adhesion strengths. We present peel strength data for test specimens laminated from the three T-F technologies, before and after damp heat, and in one instance at elevated temperatures. On laminated T-F cell samples, failure can occur uniformly at any one of the many interfaces, or non-uniformly across the peel area at more than one interface. Some peel strengths are << 1 N/mm. This is far below the normal Instron mechanical testing unit Instron mechanical testing unit; glass interface values of >10 N/mm. We measure a wide range of adhesion strengths and suggest that adhesion measured under higher temperature and relative humidity conditions is more relevant for module reliability.

  12. Materials for Heated Head Automated Thermoplastic Tape Placement

    Jensen, Brian J.; Kinney, Megan C.; Cano, Roberto J.; Grimsley, Brian W.

    2012-01-01

    NASA Langley Research Center (LaRC) is currently pursuing multiple paths to develop out of autoclave (OOA) polymeric composite materials and processes. Polymeric composite materials development includes the synthesis of new and/or modified thermosetting and thermoplastic matrix resins designed for specific OOA processes. OOA processes currently under investigation include vacuum bag only (VBO) prepreg/composite fabrication, resin transfer molding (RTM), vacuum assisted resin transfer molding (VARTM) and heated head automated thermoplastic tape placement (HHATP). This paper will discuss the NASA Langley HHATP facility and capabilities and recent work on characterizing thermoplastic tape quality and requirements for quality part production. Samples of three distinct versions of APC-2 (AS4/PEEK) thermoplastic dry tape were obtained from two materials vendors, TENCATE, Inc. and CYTEC Engineered Materials** (standard grade and an experimental batch). Random specimens were taken from each of these samples and subjected to photo-microscopy and surface profilometry. The CYTEC standard grade of APC-2 tape had the most voids and splits and the highest surface roughness and/or waviness. Since the APC-2 tape is composed of a thermoplastic matrix, it offers the flexibility of reprocessing to improve quality, and thereby improve final quality of HHATP laminates. Discussions will also include potential research areas and future work that is required to advance the state of the art in the HHATP process for composite fabrication.

  13. Bending strain study of Bi-2223/Ag tapes using Hall sensor magnetometry

    The influence of room temperature bending on critical current (Ic) of Bi-2223/Ag tapes is studied by Hall sensor magnetometry, four-point method and scanning electron microscopy. Hall sensor magnetometry allows one to assess tape homogeneity and the amount of mechanical damage caused by bending. The microstructure of the Bi-2223 ceramic is found to strongly affect the tape behavior under bending strain. In a tape with moderate Ic = 6.1 A at 77 K and a porous ceramic core, crack propagation took place normal to the Ag-ceramic interface, whereas in tapes with dense core, Ic above 10 A at 77 K, cracks propagated in the tape plane. In monofilamentary tapes core homogeneity correlated with good bending strain performance. In multifilamentary tapes crack propagation between filaments was prohibited by the Ag matrix, thus leading to enhanced strain tolerance. In the high Ic tapes studied, bending to 25 mm radius resulted in 1%--2% Ic degradation

  14. Electrically Conductive Epoxy Adhesives

    Lan Bai

    2011-02-01

    Full Text Available Conductive adhesives are widely used in electronic packaging applications such as die attachment and solderless interconnections, component repair, display interconnections, and heat dissipation. The effects of film thickness as functions of filler volume fraction, conductive filler size, shape, as well as uncured adhesive matrix viscosity on the electrical conduction behavior of epoxy-based adhesives are presented in this work. For this purpose, epoxy-based adhesives were prepared using conductive fillers of different size, shape, and types, including Ni powder, flakes, and filaments, Ag powder, and Cu powder. The filaments were 20 μm in diameter, and 160 or 260 μm in length. HCl and H3PO4 acid solutions were used to etch and remove the surface oxide layers from the fillers. The plane resistance of filled adhesive films was measured using the four-point method. In all cases of conductive filler addition, the planar resistivity levels for the composite adhesive films increased when the film thickness was reduced. The shape of resistivity-thickness curves was negative exponential decaying type and was modeled using a mathematical relation. The relationships between the conductive film resistivities and the filler volume fractions were also derived mathematically based on the experimental data. Thus, the effects of surface treatment of filler particles, the type, size, shape of fillers, and the uncured epoxy viscosity could be included empirically by using these mathematical relations based on the experimental data. By utilizing the relations we proposed to model thickness-dependent and volume fraction-dependent conduction behaviors separately, we were able to describe the combined and coupled volume fraction-film thickness relationship mathematically based on our experimental data.

  15. Adhesion properties of MgO-ZrO2 insulation coatings for 5 Tesla HTS coils

    Self insulating substrate tapes (SIST) is the most promising insulation technique for high temperature MgO-ZrO2 coatings on Ag and AgMg sheathed Bi2Sr2Ca1Cu2Ox (Bi-2212) superconducting tapes and wires in applications of HTS/LTS coils and magnets. We have already reported successful results as to the synthesis, characterizations and applications of the insulation coatings using the SIST. In order to provide no electrical short circuit in Jc measurements of HTS/LTS coils, the bonding of the coatings onto the substrate is a very important issue. In this present research, the adhesion properties of high temperature MgO-ZrO2 coatings were scrutinized for different processing parameters. Lap joints were fabricated by laying fresh sol-gel coated silver tape samples over each other and then by heat-treating at temperature range of 500-800 deg. C for several times in air. These joint samples were pulled to failure by using a mini tensile tester. MgO-ZrO2 was coated on Ag tapes by sol-gel process using Mg and Zr based precursors. The obtained results obviously pointed out that the best Mg precursor is Mg(C5H7O2)·2H2O to prepare solution and there is a strong relationship between film growth and adhesion properties. Also, MgO content in ZrO2 increased its bonding strength. The optimum heat treatment conditions are 600 deg. C and 15 min for best bonding for these high temperature insulation coatings on HTS tape conductor. The failure mode of all samples was in the form of a mixed type interfacial/cohesive defects in MgO-ZrO2 coating

  16. Magnetic characterization of multifilamentary BSCCO (2223) - Ag tapes

    Twisted and not twisted multifilamentary BSCCO (2223) - Ag tapes, prepared by the PIT technique, have been characterized by SQUID magnetometry with the magnetic field applied both parallel and perpendicular to the c-axis. From these measurements and estimation of the critical current densities Jab with Hext parallel to the c-axis Jab planes and Jc is obtained. These values are in fairly good agreement with those obtained by transport measurements. The tapes turned out to be very homogeneous and practically no difference was found in the hysteresis loops of twisted and not twisted tapes, which suggests that the mean grain alignment is the same in the two types of samples and the current path probably follows the 'brick wall' model

  17. Direct observation of magnetic patterns in audio tapes

    Magneto-optical imaging has become a powerful technique for the measurement of local magnetic fields. The technique consists in measuring the rotation in the light polarization plane when light travels through a transparent sensitive garnet (Ytrium Iron Garnet, YIG). The rotation angle is a function of the magnetic field at the YIG location. We have studied commercial audio tapes in which computer generated functions were recorded. We present a study of the stray field of periodically magnetized tapes with square and sawtooth waveforms. Observations are described modeling the magnetized tapes as an array of coaxial circular coils where the current in each coil reproduces the recorded functions. The effect of the magnetic field components, normal and parallel to the YIG surface, is discussed

  18. Experimental Investigations of Woven Textile Tape as Strain Sensor

    Kannaian, T.; Naveen, V. S.; Muthukumar, N.; Thilagavathi, G.

    2015-10-01

    In this article, a strain sensitive textile based elastomeric tape sensor has been developed and process parameters for sensor development are optimized. Polyester yarns are used as base threads and rubber threads are used as elastomer for the sensor development. The sensor has been developed with the help of narrow width tape loom by introducing the silver coated nylon yarn in the middle of the tape structure. The influence of weave structure, number of conductive threads and rubber thread tension on sensor development has been optimized by using the Box-Behnken method and the results are analyzed using the Design expert software. From the results, it is found that six numbers of conductive threads in a plain weave structure with rubber thread tension of 750 g is suitable for the sensor to give high gauge factor of 1.626.

  19. Preparation of MgB2 superconducting tapes using electrophoresis

    Xu, J. D.; Wang, S. F.; Zhou, Y. B.; Zhou, Y. L.; Chen, Z. H.; Cui, D. F.; Lu, H. B.; He, M.; Dai, S. Y.; Yang, G. Z.

    2002-08-01

    Superconducting MgB2/Ta tapes with a critical temperature of 34 K have been prepared successfully by ex situ annealing of electrophoresis-grown boron in the presence of Mg vapour at 920 °C. Scanning electron microscopy was used to examine the surface morphology of the MgB2/Ta tapes, and well-formed MgB2 crystals with sizes up to 2 μm were observed. The x-ray diffraction patterns showed randomly orientated growth of MgB2 phase in the tapes. Estimates using hysteresis loops and the Bean model give a value of 6.8 × 105 A cm-2 for the critical current density.

  20. Folding, stowage, and deployment of viscoelastic tape springs

    Kwok, Kawai; Pellegrino, Sergio

    2013-01-01

    This paper presents an experimental and numerical study of the folding, stowage, and deployment behavior of viscoelastic tape springs. Experiments show that during folding the relationship between load and displacement is nonlinear and varies with rate and temperature. In particular, the limit and...... propagation loads increase with the folding rate but decrease with temperature. During stowage, relaxation behavior leads to a reduction in internal forces that significantly impacts the subsequent deployment dynamics. The deployment behavior starts with a short, dynamic transient that is followed by a steady...... deployment and ends with a slow creep recovery. Unlike elastic tape springs, localized folds in viscoelastic tape springs do not move during deployment. Finite-element simulations based on a linear viscoelastic constitutive model with an experimentally determined relaxation modulus are shown to accurately...

  1. Critical Current Measurements in Commercial Tapes, Coils, and Magnets.

    Gubser, D. U.; Soulen, R. J., Jr.; Fuller-Mora, W. W.; Francavilla, T. L.

    1996-03-01

    We have measured a number of tapes, coils, and magnets produced by commercial vendors and determined their properties as functions of magnetic field and temperature. The tapes were measured at the National High Magnetic Field Laboratory in magnetic fields to 20 tesla and at temperatures of 4.2 K, 27 K, 65 K, and 77 K. For the tapes we report critical currents and current-voltage characteristics. Six inch diameter coils were measured at NRL in zero magnetic field. Critical currents, current-voltage characteristics, and reliability studies are reported for the coils. Larger 10 inch diameter coils, which are to be used in a 200 hp superconducting motor, were also measured and results will be presented. The talk will also review the status of the most recent tests of the superconducting motor.

  2. Mechanisms of self-cleaning in fluid-based smooth adhesive pads of insects

    Pressure-sensitive adhesives such as tapes become easily contaminated by dust particles. By contrast, animal adhesive pads are able to self-clean and can be reused millions of times over a lifetime with little reduction in adhesion. However, the detailed mechanisms underlying this ability are still unclear. Here we test in adhesive pads of stick insects (Carausius morosus) (1) whether self-cleaning is enhanced by the liquid pad secretion, and (2) whether alternating push–pull movements aid the removal of particles. We measured attachment forces of insect pads on glass after contamination with 10 µm polystyrene beads. While the amount of fluid present on the pad showed no effect on the pads' susceptibility to contamination, the recovery of adhesive forces after contamination was faster when higher fluid levels were present. However, this effect does not appear to be based on a faster rate of self-cleaning since the number of spheres deposited with each step did not increase with fluid level. Instead, the fluid may aid the recovery of adhesive forces by filling in the gaps between contaminating particles, similar to the fluid's function on rough surfaces. Further, we found no evidence that an alternation of pushing and pulling movements, as found in natural steps, leads to a more efficient recovery of adhesion than repeated pulling slides. (paper)

  3. High current density electropolishing in the preparation of highly smooth substrate tapes for coated conductors

    Kreiskott, Sascha (Los Alamos, NM); Matias, Vladimir (Santa Fe, NM); Arendt, Paul N. (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM); Bronisz, Lawrence E. (Los Alamos, NM)

    2009-03-31

    A continuous process of forming a highly smooth surface on a metallic tape by passing a metallic tape having an initial roughness through an acid bath contained within a polishing section of an electropolishing unit over a pre-selected period of time, and, passing a mean surface current density of at least 0.18 amperes per square centimeter through the metallic tape during the period of time the metallic tape is in the acid bath whereby the roughness of the metallic tape is reduced. Such a highly smooth metallic tape can serve as a base substrate in subsequent formation of a superconductive coated conductor.

  4. Mirror-Touch and Ticker Tape Perceptions in Synesthesia

    Charlotte Anne Chun

    2013-11-01

    Full Text Available A fundamental question in the field of synesthesia is whether it is associated with other cognitive phenomena. The current study examined synesthesia’s connections with phenomenal traits of mirror-touch and ticker tape experiences, as well as the representation of the three phenomena in the population, across gender and domain of work/study. Mirror-touch is the automatic, involuntary experience of tactile sensation on one's own body when others are being touched. For example, seeing another person’s arm being stroked can evoke physical touch sensation on one’s own arm. Ticker tape is the automatic visualization of spoken words or thoughts, such as a teleprompter. For example, when spoken to, a ticker taper might see mentally the spoken words displayed in front of his face or as coming out of the speaker’s mouth. To explore synesthesia’s associations with these phenomena, a diverse group (n=3,743 was systematically recruited from eight universities and one public museum in France to complete an online screening. Of the 1,017 eligible respondents, synesthetes (across all subtypes reported higher rates of mirror-touch and ticker tape than non-synesthetes, suggesting that synesthesia is associated with these phenomenal traits. However effect size was small and we could not rule out that response bias influenced these associations. Mirror-touch and ticker tape were independent. No differences were found across gender or domain of work and study in prevalence of synesthesia, mirror-touch or ticker tape. The prevalence of ticker tape, unknown so far, was estimated at about 7%, an intermediate rate between estimates of grapheme-color (2 to 4% and sequence-space synesthesia (9 to 14%. Within synesthesia, grapheme-personification, also called ordinal-linguistic personification was the most common subtype and was estimated around 12%. Co-occurences of the different types of synesthesia were higher than chance, though at the level of small effect

  5. Switchable Adhesion in Vacuum Using Bio-Inspired Dry Adhesives.

    Purtov, Julia; Frensemeier, Mareike; Kroner, Elmar

    2015-11-01

    Suction based attachment systems for pick and place handling of fragile objects like glass plates or optical lenses are energy-consuming and noisy and fail at reduced air pressure, which is essential, e.g., in chemical and physical vapor deposition processes. Recently, an alternative approach toward reversible adhesion of sensitive objects based on bioinspired dry adhesive structures has emerged. There, the switching in adhesion is achieved by a reversible buckling of adhesive pillar structures. In this study, we demonstrate that these adhesives are capable of switching adhesion not only in ambient air conditions but also in vacuum. Our bioinspired patterned adhesive with an area of 1 cm(2) provided an adhesion force of 2.6 N ± 0.2 N in air, which was reduced to 1.9 N ± 0.2 N if measured in vacuum. Detachment was induced by buckling of the structures due to a high compressive preload and occurred, independent of air pressure, at approximately 0.9 N ± 0.1 N. The switch in adhesion was observed at a compressive preload between 5.6 and 6.0 N and was independent of air pressure. The difference between maximum adhesion force and adhesion force after buckling gives a reasonable window of operation for pick and place processes. High reversibility of the switching behavior is shown over 50 cycles in air and in vacuum, making the bioinspired switchable adhesive applicable for handling operations of fragile objects. PMID:26457864

  6. The new CERN tape software - getting ready for total performance

    Cano, E.; Murray, S.; Kruse, D. F.; Kotlyar, V.; Côme, D.

    2015-12-01

    CASTOR (the CERN Advanced STORage system) is used to store the custodial copy of all of the physics data collected from the CERN experiments, both past and present. CASTOR is a hierarchical storage management system that has a disk-based front-end and a tape-based back-end. The software responsible for controlling the tape back-end has been redesigned and redeveloped over the last year and was put in production at the beginning of 2015. This paper summarises the motives behind the redesign, describes in detail the redevelopment work and concludes with the short and long-term benefits.

  7. Deuton-M Magnetic Tapes and Sheets for Cards

    2000-01-01

    Magnetic stripe is one of the major applications of magnetic materials. As a key component of the present card technologies magnetic stripes play reliable components for electronic data interchange in worldwide electronic payment systems such as financial cards, transit tickets and phone cards, etc. Magnetic stripes are available in various coercivity materials, widths, lengths, structures and colors with each types of transferable, lamination and pressure sensitive magnetic tapes of Deuton-M. Manufacturing process, structure and characteristics of Deuton-M magnetic tape and sheet are described.

  8. Inadvertent Eyelid Irritant Contact Dermatitis from Hypoallergenic Surgical Tape

    T. Y. Chuang

    2006-08-01

    Full Text Available Hypoallergenic surgical tapes are generally considered hypoallergic in nature as theircommercial trademarks suggest. However, we report a case of a patient, after receiving therapeuticlaparoscopy, developing symptoms and signs suggestive of not allergic but irritantcontact dermatitis in the recovery room after an uneventful general anesthetic course.Hypoallergenic MicroporeTM Surgical Tape (3MTM Health Care had been applied to each ofthe patient’s eyelids for eye protection. The skin lesions had a strong relation to the use ofcosmetic chemical peeling agents on the patient’s periorbital region.

  9. Engineering Critical Current Density Improvement in Ag- Bi-2223 Tapes

    Wang, W. G.; Seifi, Behrouz; Eriksen, Morten; Skov-Hansen, Peder; Grivel, J. -C.; Vase, Per

    Ag alloy sheathed Bi-2223 multifilament tapes were produced by the powder-in-tube method. Engineering critical current density improvement has been achieved through both enhancement of critical current density by control of the thermal behavior of oxide powder and by an increase of the filling...... superconductor composite sustaining large proportional oxide ceramics in the composite during drawing and rolling process. By optimization of the thermal and mechanical process, a Je of 12 kA/cm2 has been achieved in a 0.183.1 mm2 size tape which carried 67 A...

  10. Magneto-optical investigations of multifilamentary Bi-2223 tapes

    Koblischka, M.R.; Johansen, T.H.; Larsen, B.H.; Andersen, N.H.; Wu, H.; Skov-Hansen, P.; Bentzon, M.; Vase, P.

    Flux distributions of multifilamentary Bi-2223 tapes with a varying number of filaments (14 to 55 filaments) are investigated by magneto-optic (MO) imaging at various temperatures (10 less than or equal to T less than or equal to 77 K) and in different field orientations (field applied perpendicu......Flux distributions of multifilamentary Bi-2223 tapes with a varying number of filaments (14 to 55 filaments) are investigated by magneto-optic (MO) imaging at various temperatures (10 less than or equal to T less than or equal to 77 K) and in different field orientations (field applied...

  11. The effect of Kinesio Taping on handgrip strength

    Lemos, Thiago Vilela; Pereira, Kelice Cristina; Protássio, Carina Celedonio; Lucas, Lorrane Barbosa; Matheus, Joao Paulo C.

    2015-01-01

    [Purpose] The purpose of this research was to evaluate the change in muscle function induced by a Kinesio Tape application with no or moderate tension, to the dominant and non-dominant arms. [Subjects and Methods] This research was a quantitative study, in which 75 women participated. The subjects, aged 18–30 years, were divided into 3 groups, Kinesio, Kinesio without Tension, and Control, and they were assessed before the taping intervention and after 30 minutes, 24 hours, and 48 hours of ta...

  12. The new CERN tape software - getting ready for total performance

    Cano, E; Kruse, D F; Kotlyar, V; Côme, D

    2015-01-01

    CASTOR (the CERN Advanced STORage system) is used to store the custodial copy of all of the physics data collected from the CERN experiments, both past and present. CASTOR is a hierarchical storage management system that has a disk-based front-end and a tape-based back-end. The software responsible for controlling the tape back-end has been redesigned and redeveloped over the last year and was put in production at the beginning of 2015. This paper summarises the motives behind the redesign, describes in detail the redevelopment work and concludes with the short and long-term benefits.

  13. Wood Composite Adhesives

    Gomez-Bueso, Jose; Haupt, Robert

    The global environment, in which phenolic resins are being used for wood composite manufacture, has changed significantly during the last decade. This chapter reviews trends that are driving the use and consumption of phenolic resins around the world. The review begins with recent data on volume usage and regional trends, followed by an analysis of factors affecting global markets. In a section on environmental factors, the impact of recent formaldehyde emission regulations is discussed. The section on economics introduces wood composite production as it relates to the available adhesive systems, with special emphasis on the technical requirement to improve phenolic reactivity. Advances in composite process technology are introduced, especially in regard to the increased demands the improvements place upon adhesive system performance. The specific requirements for the various wood composite families are considered in the context of adhesive performance needs. The results of research into current chemistries are discussed, with a review of recent findings regarding the mechanisms of phenolic condensation and acceleration. Also, the work regarding alternate natural materials, such as carbohydrates, lignins, tannins, and proteinaceous materials, is presented. Finally, new developments in alternative adhesive technologies are reported.

  14. Application Development of Dry Mica Tape in High Voltage Electrical Machinery%少胶云母带在高压电机上的应用发展现状及趋势

    王文; 夏宇

    2014-01-01

    介绍了多胶模压和液压、中胶真空压力浸渍及少胶真空压力浸渍等电机云母绝缘技术和云母纸、补强材料、胶粘剂等少胶云母带的基础材料,概述了国内外少胶云母带的技术现状及其在高压电机上的应用与选择,并展望了云母纸、补强材料、胶粘剂、纳米技术的应用、高导热少胶云母带、云母带新技术、新工艺和新设备的未来发展方向。%The mica insulation technology of electrical machinery including rich-resin molding or hydrau-lic, moderate-resin vacuum pressure impregnating, poor-resin vacuum pressure impregnating and the base materials of dry mica tape including mica paper, reinforced material and adhesive were introduced. The technology status of dry mica tape at home and abroad and its application and selection in high voltage electrical machinery were reviewed, and some further development directions of mica paper, reinforced ma-terial, adhesive, application of nano-technology, high thermal conductivity dry mica tape, new technology, new process and new equipment of mica tape were prospected.

  15. Coating Reduces Ice Adhesion

    Smith, Trent; Prince, Michael; DwWeese, Charles; Curtis, Leslie

    2008-01-01

    The Shuttle Ice Liberation Coating (SILC) has been developed to reduce the adhesion of ice to surfaces on the space shuttle. SILC, when coated on a surface (foam, metal, epoxy primer, polymer surfaces), will reduce the adhesion of ice by as much as 90 percent as compared to the corresponding uncoated surface. This innovation is a durable coating that can withstand several cycles of ice growth and removal without loss of anti-adhesion properties. SILC is made of a binder composed of varying weight percents of siloxane(s), ethyl alcohol, ethyl sulfate, isopropyl alcohol, and of fine-particle polytetrafluoroethylene (PTFE). The combination of these components produces a coating with significantly improved weathering characteristics over the siloxane system alone. In some cases, the coating will delay ice formation and can reduce the amount of ice formed. SILC is not an ice prevention coating, but the very high water contact angle (greater than 140 ) causes water to readily run off the surface. This coating was designed for use at temperatures near -170 F (-112 C). Ice adhesion tests performed at temperatures from -170 to 20 F (-112 to -7 C) show that SILC is a very effective ice release coating. SILC can be left as applied (opaque) or buffed off until the surface appears clear. Energy dispersive spectroscopy (EDS) and x-ray photoelectron spectroscopy (XPS) data show that the coating is still present after buffing to transparency. This means SILC can be used to prevent ice adhesion even when coating windows or other objects, or items that require transmission of optical light. Car windshields are kept cleaner and SILC effectively mitigates rain and snow under driving conditions.

  16. Delamination behaviour in differently copper laminated REBCO coated conductor tapes under transverse loading

    Gorospe, Alking [Department of Mechanical Design Engineering, Andong National University, 1375 Kyungdong-Ro, Andong 760-749 (Korea, Republic of); Department of Engineering, Aurora State College of Technology, Baler Aurora 3200 (Philippines); Nisay, Arman [Department of Mechanical Design Engineering, Andong National University, 1375 Kyungdong-Ro, Andong 760-749 (Korea, Republic of); Shin, Hyung-Seop, E-mail: hsshin@andong.ac.kr [Department of Mechanical Design Engineering, Andong National University, 1375 Kyungdong-Ro, Andong 760-749 (Korea, Republic of)

    2014-09-15

    Highlights: • I{sub c} degradation behavior under transverse tension loading in different CC tape structure. • Weibull distribution analysis applied on delamination mechanism of CC tape. • Delamination mechanism on CC tapes depending on copper lamination type. • SEM and WDS mapping analysis of delamination sites under transverse loading. - Abstract: Laminated HTS coated conductor (CC) tapes having a unique multi-layer structure made them vulnerable when exposed to transverse loading. Electromechanical transport properties of these CC tapes can be affected by excessive transverse stresses. Due to the coefficient of thermal expansion (CTE) mismatch and incompatibility among constituent materials used in coil applications, delamination among layers occurs and causes critical current, I{sub c} degradation in the CC tapes. In this study, the delamination behaviors in copper (Cu) solder-laminated CC tapes by soldering and surround Cu-stabilized ones by electroplating under transverse tension loading were investigated. Similarly to the surround Cu-stabilized CC tapes in our previous reports, the Cu solder-laminated CC tapes also showed an abrupt and gradual I{sub c} degradation behavior. However, the Cu solder-laminated CC tapes showed different delamination morphologies as compared to the surround Cu-stabilized CC tapes; the superconducting side and the substrate side of the Cu solder laminated CC tapes were totally separated by delamination. On the other hand, the brass laminate did not show any significant effect on the delamination strength when it is added upon the surround Cu-stabilized CC tapes.

  17. Delamination behaviour in differently copper laminated REBCO coated conductor tapes under transverse loading

    Highlights: • Ic degradation behavior under transverse tension loading in different CC tape structure. • Weibull distribution analysis applied on delamination mechanism of CC tape. • Delamination mechanism on CC tapes depending on copper lamination type. • SEM and WDS mapping analysis of delamination sites under transverse loading. - Abstract: Laminated HTS coated conductor (CC) tapes having a unique multi-layer structure made them vulnerable when exposed to transverse loading. Electromechanical transport properties of these CC tapes can be affected by excessive transverse stresses. Due to the coefficient of thermal expansion (CTE) mismatch and incompatibility among constituent materials used in coil applications, delamination among layers occurs and causes critical current, Ic degradation in the CC tapes. In this study, the delamination behaviors in copper (Cu) solder-laminated CC tapes by soldering and surround Cu-stabilized ones by electroplating under transverse tension loading were investigated. Similarly to the surround Cu-stabilized CC tapes in our previous reports, the Cu solder-laminated CC tapes also showed an abrupt and gradual Ic degradation behavior. However, the Cu solder-laminated CC tapes showed different delamination morphologies as compared to the surround Cu-stabilized CC tapes; the superconducting side and the substrate side of the Cu solder laminated CC tapes were totally separated by delamination. On the other hand, the brass laminate did not show any significant effect on the delamination strength when it is added upon the surround Cu-stabilized CC tapes

  18. Pathogenesis of postoperative adhesion formation

    Hellebrekers, B.W.J.; Kooistra, T.

    2011-01-01

    Background: Current views on the pathogenesis of adhesion formation are based on the "classical concept of adhesion formation", namely that a reduction in peritoneal fibrinolytic activity following peritoneal trauma is of key importance in adhesion development. Methods: A non-systematic literature s

  19. A Foundation of Programming a Multi-Tape Quantum Turing machine

    Yamakami, Tomoyuki

    1999-01-01

    The notion of quantum Turing machines is a basis of quantum complexity theory. We discuss a general model of multi-tape, multi-head Quantum Turing machines with multi final states that also allow tape heads to stay still.

  20. Numerical Modeling of Fluid Flow in the Tape Casting Process

    Jabbari, Masoud; Hattel, Jesper Henri

    2011-01-01

    The flow behavior of the fluid in the tape casting process is analyzed. A simple geometry is assumed for running the numerical calculations in ANSYS Fluent and the main parameters are expressed in non-dimensional form. The effect of different values for substrate velocity and pressure force on the...

  1. Recent development of an HTS power cable using YBCO tapes

    Overcurrent characteristics and reduction of AC loss are essential for high temperature superconducting (HTS) cable in a real grid. AC loss in an HTS conductor using YBCO could be potentially small but protection for overcurrent was needed. A 0.1 mm thick copper tape soldered to the YBCO tape was effective as protection from overcurrent and did not affect the increase in AC loss. The 2 m HTS conductor with Cu strands of 250 mm2 and YBCO tapes with copper was fabricated. This conductor could withstand overcurrent of 31.5 kA for 2 s. To reduce AC loss, 10 mm wide YBCO tapes were divided into five strips using YAG laser. Using narrower strips and decreasing the space between the strips were effective in reducing AC loss. In consideration of this configuration, a three-layer conductor was fabricated, and AC loss of 0.054 W/m at 1 kA rms was achieved even though it had a small outer diameter of 19.6 mm

  2. Kinematics of ankle taping after a training session.

    Meana, M; Alegre, L M; Elvira, J L L; Aguado, X

    2008-01-01

    This study aimed to test the effectiveness of ankle taping on the limitation of forced supination during a change of direction, as well as the losses of effectiveness after a 30-minute training session. Fifteen young men with no ankle injury volunteered for the study. The static and dynamic ranges of movement (ROM) were measured before and after a training session. The dynamic measurements were recorded using high-speed 3D photogrammetry. The differences between static and dynamic measures of ankle supination and plantar flexion were significant. The losses of effectiveness during supination and ankle plantar flexion restriction were 42.3 % and 47.6 %, respectively. Ankle taping was effective in restricting the maximal static ROMs before a training session, but the effectiveness decreased after 30 min of training. The present study shows the necessity of performing dynamic ROM analysis of sports techniques involved in the ankle sprain mechanism in order to determine the degree of tape restriction after a training session, because there were differences between static and dynamic ankle ROMs. The lack of effects on the restriction of the dynamic plantar flexion would bring into question the necessity of ankle taping in subjects without previous injuries. PMID:17614032

  3. Extendable nickel complex tapes that reach NIR absorptions.

    Audi, Hassib; Chen, Zhongrui; Charaf-Eddin, Azzam; D'Aléo, Anthony; Canard, Gabriel; Jacquemin, Denis; Siri, Olivier

    2014-12-14

    Stepwise synthesis of linear nickel complex oligomer tapes with no need for solid-phase support has been achieved. The control of the length in flat arrays allows a fine-tuning of the absorption properties from the UV to the NIR region. PMID:25348258

  4. Two-tape finite automata with quantum and classical states

    Zheng, Shenggen; Qiu, Daowen

    2011-01-01

    {\\it Two-way finite automata with quantum and classical states} (2QCFA) were introduced by Ambainis and Watrous, and {\\it two-way two-tape deterministic finite automata} (2TFA) were introduced by Rabin and Scott. In this paper we study 2TFA and propose a new computing model called {\\it two-way two-tape finite automata with quantum and classical states} (2TQCFA). First, we give efficient 2TFA algorithms for recognizing languages which can be recognized by 2QCFA. Second, we give efficient 2TQCFA algorithms to recognize several languages whose status vis-a-vis 2QCFA have been posed as open questions, such as $L_{square}=\\{a^{n}b^{n^{2}}\\mid n\\in \\mathbf{N}\\}$. Third, we show that $\\{a^{n}b^{n^{k}}\\mid n\\in \\mathbf{N}\\}$ can be recognized by {\\it $(k+1)$-tape deterministic finite automata} ($(k+1)$TFA). Finally, we introduce {\\it $k$-tape automata with quantum and classical states} ($k$TQCFA) and prove that $\\{a^{n}b^{n^{k}}\\mid n\\in \\mathbf{N}\\}$ can be recognized by $k$TQCFA.

  5. A Microcomputer Program for Matrix Multiplication Using a Tape Unit

    Dreger, Ralph Mason

    1976-01-01

    A microcomputer program using a tape unit for multiplying two matrices as large as 41 x 42 apiece is presented. Advantages and limitations are discussed. A verbal description of the logic is presented to facilitate the use of the program on different brands of computers. (Author/JKS)

  6. A Microcomputer Program for ANOVA Using a Tape Unit

    Dreger, Ralph Mason

    1976-01-01

    A microcomputer program for two-way analysis of variance is described. Both the program and cell entries are stored on tape. Output consists of both intermediate and final products. Advantages and limitations of the program are discussed; the program cannot handle nested or mixed designs. (Author/JKS)

  7. Experiences and challenges running CERN's high capacity tape archive

    Cancio, Germ; Kruse, Daniele Francesco; Leduc, Julien; Cano, Eric; Murray, Steven

    2015-01-01

    CERN's tape-based archive system has collected over 70 Petabytes of data during the first run of the LHC. The Long Shutdown is being used for migrating the complete 100 Petabytes data archive to higher-density tape media. During LHC Run 2, the archive will have to cope with yearly growth rates of up to 40-50 Petabytes. In this contribution, we describe the scalable setup for coping with the storage and long-term archival of such massive data amounts. We also review the challenges resulting and mechanisms devised for measuring and enhancing availability and reliability, as well as ensuring the long-term integrity and bit-level preservation of the complete data repository. The procedures and tools for the proactive and efficient operation of the tape infrastructure are described, including the features developed for automated problem detection, identification and notification. Finally, we present an outlook in terms of future capacity requirements growth and how it matches the expected tape technology evolution...

  8. Experiences and challenges running CERN's high capacity tape archive

    Cancio, Germán; Bahyl, Vladimír; Kruse, Daniele Francesco; Leduc, Julien; Cano, Eric; Murray, Steven

    2015-12-01

    CERN's tape-based archive system has collected over 70 Petabytes of data during the first run of the LHC. The Long Shutdown is being used for migrating the complete 100 Petabytes data archive to higher-density tape media. During LHC Run 2, the archive will have to cope with yearly growth rates of up to 40-50 Petabytes. In this contribution, we describe the scalable setup for coping with the storage and long-term archival of such massive data amounts. We also review the challenges resulting and mechanisms devised for measuring and enhancing availability and reliability, as well as ensuring the long-term integrity and bit-level preservation of the complete data repository. The procedures and tools for the proactive and efficient operation of the tape infrastructure are described, including the features developed for automated problem detection, identification and notification. Finally, we present an outlook in terms of future capacity requirements growth and how it matches the expected tape technology evolution.

  9. Heat conduction and thermal stabilization in YBCO tape

    Ziauddin Khan; Subrata Pradhan; Irfan Ahmad

    2012-06-01

    Yttrium barium copper oxide (YBCO) coated conductors are widely used in the conduction-cooled superconducting magnets with rapid development in refrigeration technologies at present. `Quench’ is a state that refers to the irreversible and uncontrolled superconductor to resistive transitions in the superconductor. The propagation of ‘quench’ or `normal zone’ has different characteristics in these high temperature superconductors (HTS) compared to low temperature superconductors. The superconductor to normal index, known as `’ is much flatter in HTS. The hot spot emerging in local region due to quench and non-uniform critical current may cause permanent damage to whole HTS tape and hence the magnet winding pack. Thus it is necessary to determine the temperature profile along the length of HTS tape under a given energy (joule heating) such that propagation of the hot spot developed locally can be prevented early. In this study, a one dimensional, time dependent heat diffusion equation with appropriate boundary conditions are used to describe the consequences of the normal zone propagation resulting in the temperature diffusion in a HTS tape. The results demonstrate the necessity of adequate cooling of the edges of the flat HTS tapes to prevent irreversible normal zone transitions.

  10. Tape casting and partial melting of Bi-2212 thick films

    To produce Bi-2212 thick films with high critical current densities tape casting and partial melting is a promising fabrication method. Bi-2212 powder and organic additives were mixed into a slurry and tape casted onto glass by the doctor blade tape casting process. The films were cut from the green tape and partially molten on Ag foils during heat treatment. We obtained almost single-phase and well-textured films over the whole thickness of 20 μm. The orientation of the (a,b)-plane of the grains were parallel to the substrate with a misalignment of less than 6 degrees. At 77K/OT a critical current density of 15'000 A/cm2 was reached in films of the dimension 1cm x 2cm x 20μm (1μV/cm criterion, resistively measured). At 4K/OT the highest value was 350'000 A/cm2 (1nV/cm criterion, magnetically measured)

  11. Preparation of a YBCO superconducting tape by pulsed laser deposition

    A high current density YBa2Cu3O7-x (YBCO) superconducting thick film on a flexible NiCr alloy substrate tape with ZrO2 + 10%Y2O3 (YSZ) as buffer layer was prepared by pulsed laser deposition (PLD). The buffer layer YSZ of thickness 0.3 microm was formed on the NiCr alloy substrate tape of length 6.0 cm by ion-assisted pulsed laser deposition (ISPLD). The YBCO superconducting thick film with thickness 1.5 microm was deposited on the YSZ/NiCr alloy substrate tape by a KrF Laser. The X-ray diffraction pattern indicates that the YBCO superconducting thick film is with strongly C-axis oriented. The critical current densities versus temperature and magnetic film is with strongly C-axis oriented. The critical current densities versus temperature and magnetic field were measured by standard four-point probe method, the values of critical current density and the critical temperature of the YBCO/YSZ/NiCr alloy superconducting tape are 8.75 x 104 A/cm2 (at 77 K, 0 T) and 88.7 K, respectively

  12. The Taped Monologue as Narrative Technique for Reflective Practice

    Ford, Keith

    2016-01-01

    In this article, I describe how an EFL teacher engaged in a process of reflective practice. As she looked back on her teaching career, she explored the critical incidents, principles, and practices that have informed her present teaching identity. I focus on how a taped monologue narrative technique was used, and on the rationale, practice, and…

  13. Experimental research on tape spring supported space inflatable structures

    Cook, Andrew J.; Walker, Scott J. I.

    2016-01-01

    This paper presents experimental research that continues the development of inflatable hybrid structures for space applications. Inflatables provide a concept with much scope for further incorporation into the structures of future spacecraft. They offer considerable savings in mass and stowed volume for spacecraft, providing possible reductions in satellite costs. Existing boom configurations make use of inflatables including solar arrays and the NGST sunshield. However these typically soft systems could be improved by incorporating tape springs as structural stiffeners along the length of the boom, creating hybrid structures. This research builds on previous experimental work undertaken at the University of Southampton looking at cantilever inflatable and hybrid booms. The focus of this research is to identify the structural performance improvement of adding tape springs to cantilever inflatable booms. This is achieved by tip deflection testing to determine the bending moment and rigidity performances of these structures allowing a comparison between the two technologies. Several hybrid booms are created and tested in various orientations to identify the optimal tape spring effectiveness. It was found that adding a pair of tape springs will increase stiffness of the hybrid structure by up to 4.9 times for an increase of 2.4 times the boom mass.

  14. THE EFFECTS OF KINESIO TAPING ON PROPRIOCEPTION AT THE ANKLE

    Mark DeBeliso

    2004-03-01

    Full Text Available An experiment was designed to determine if KinesioTM taping the anterior and lateral portion of the ankle would enhance ankle proprioception compared to the untaped ankle. 30 subjects, 15 men, 15 women, ages 18-30 participated in this study. Exclusion criteria: Ankle injury < 6 months prior to testing, significant ligament laxity as determined through clinical evaluation by an ATC, or any severe foot abnormality. Experiment utilized a single group, pretest and posttest. Plantar flexion and inversion with 20° of plantar flexion reproduction of joint position sense (RJPS was determined using an ankle RJPS apparatus. Subjects were barefooted, blindfolded, and equipped with headphones playing white noise to eliminate auditory cues. Subjects had five trials in both plantar flexion and inversion with 20° plantar flexion before and after application of the KinesioTM tape to the anterior/lateral portion of the ankle. Constant error and absolute error were determined from the difference between the target angle and the trial angle produced by the subject. The treatment group (KinesioTM taped subjects showed no change in constant and absolute error for ankle RJPS in plantar flexion and 20º of plantar flexion with inversion when compared to the untaped results using the same motions. The application of KinesioTM tape does not appear to enhance proprioception (in terms of RJPS in healthy individuals as determined by our measures of RJPS at the ankle in the motions of plantar flexion and 20º of plantar flexion with inversion.

  15. Influence of technology on magnetic tape storage device characteristics

    Gniewek, John J.; Vogel, Stephen M.

    1994-01-01

    There are available today many data storage devices that serve the diverse application requirements of the consumer, professional entertainment, and computer data processing industries. Storage technologies include semiconductors, several varieties of optical disk, optical tape, magnetic disk, and many varieties of magnetic tape. In some cases, devices are developed with specific characteristics to meet specification requirements. In other cases, an existing storage device is modified and adapted to a different application. For magnetic tape storage devices, examples of the former case are 3480/3490 and QIC device types developed for the high end and low end segments of the data processing industry respectively, VHS, Beta, and 8 mm formats developed for consumer video applications, and D-1, D-2, D-3 formats developed for professional video applications. Examples of modified and adapted devices include 4 mm, 8 mm, 12.7 mm and 19 mm computer data storage devices derived from consumer and professional audio and video applications. With the conversion of the consumer and professional entertainment industries from analog to digital storage and signal processing, there have been increasing references to the 'convergence' of the computer data processing and entertainment industry technologies. There has yet to be seen, however, any evidence of convergence of data storage device types. There are several reasons for this. The diversity of application requirements results in varying degrees of importance for each of the tape storage characteristics.

  16. Tape casting and partial melting of Bi-2212 thick films

    Buhl, D.; Lang, T.; Heeb, B. [Nichtmetallische Werkstoffe, Zuerich (Switzerland)] [and others

    1994-12-31

    To produce Bi-2212 thick films with high critical current densities tape casting and partial melting is a promising fabrication method. Bi-2212 powder and organic additives were mixed into a slurry and tape casted onto glass by the doctor blade tape casting process. The films were cut from the green tape and partially molten on Ag foils during heat treatment. We obtained almost single-phase and well-textured films over the whole thickness of 20 {mu}m. The orientation of the (a,b)-plane of the grains were parallel to the substrate with a misalignment of less than 6{degrees}. At 77K/OT a critical current density of 15`000 A/cm{sup 2} was reached in films of the dimension 1cm x 2cm x 20{mu}m (1{mu}V/cm criterion, resistively measured). At 4K/OT the highest value was 350`000 A/cm{sup 2} (1nV/cm criterion, magnetically measured).

  17. Researchers wrangle petabytes of data storage with NAS, tape

    Pariseau, Beth

    2007-01-01

    "Much is made in the enterprise data storage industry about the performance of disk systems over tape drives, but the managers of one data center that has eached the far limits of capacity say otherwise. Budget and performance demands forced them to build access protocols and data management tools for disk systems from scratch."

  18. A beta test of linear tape-open (LTO) ultrium data storage technology

    Cholia, Shreyas; Meyer, Nancy

    2001-01-01

    NERSC is participating in several HPSS (High Performance Storage System) research and development projects as part of the Probe testbed. One of these projects involved beta testing of the IBM 3584 UltraScalable Tape Library, which uses the new ultra-high-density Linear Tape-Open (LTO) Ultrium tape drives. Ultrium tape cartridges have a capacity of up to 300 GB of compressed data, greatly reducing the number of cartridges needed to store massive scientific datasets. NERSC's preliminary p...

  19. The Therapeutic Effects Of Kinesio Tape on a Grade I Lateral Ankle Sprain

    Hendrick, Carrie Rayette

    2010-01-01

    The Therapeutic Effects OF Kinesioâ ¢ Tape On A Grade I Lateral Ankle Sprain? By Carrie Rayette Hendrick ABSTRACT Ankle taping and bracing are important components in the world of sports medicine and athletic training. There are different types of tape that are used for athletes by athletic trainers. However, little research has compared the performance of Kinesioâ ¢ Tape and an ASO ankle brace on a lateral grade...

  20. Management of adhesive capsulitis

    Stupay KL

    2015-08-01

    Full Text Available Kristen L Stupay,1 Andrew S Neviaser2 1Tulane University School of Medicine, New Orleans, LA, USA; 2George Washington University Medical Faculty Associates, Washington, DC, USA Abstract: Adhesive capsulitis of the shoulder is a condition of capsular contracture that reduces both active and passive glenohumeral motion. The cause of adhesive capsulitis is not known but it is strongly associated with endocrine abnormalities such as diabetes. Diverse terminology and the absence of definitive criteria for diagnosis make evaluating treatment modalities difficult. Many treatment methods have been reported, most with some success, but few have been proved to alter the natural course of this disease. Most afflicted patients will achieve acceptable shoulder function without surgery. Those who remain debilitated after 8–12 months are reasonable candidates for invasive treatments. Here, the various treatment methods and the data to support their use are reviewed. Keywords: frozen shoulder, stiff shoulder, periarthritis, painful shoulder 

  1. Syndecans and cell adhesion

    Couchman, J R; Chen, L; Woods, A

    2001-01-01

    Now that transmembrane signaling through primary cell-matrix receptors, integrins, is being elucidated, attention is turning to how integrin-ligand interactions can be modulated. Syndecans are transmembrane proteoglycans implicated as coreceptors in a variety of physiological processes, including...... cell adhesion, migration, response to growth factors, development, and tumorigenesis. This review will describe this family of proteoglycans in terms of their structures and functions and their signaling in conjunction with integrins, and indicate areas for future research....

  2. Adhesion-enhanced thick copper film deposition on aluminum oxide by an ion-beam-mixed Al seed layer

    We report a highly-adherent 30-μm Cu conductive-path coating on an aluminum-oxide layer anodized on an aluminum-alloy substrate for a metal-printed circuit-board application. A 50-nm Al layer was first coated with an e-beam evaporative deposition method on the anodized oxide, followed by ion bombardment to mix the interfacial region. Subsequently, a Cu coating was deposited onto the mixed seed layer to the designed thickness. Adhesions of the interface were tested by using tape adhesion test, and pull-off tests and showed commercially acceptable adhesions for such thick coating layers. The ion beam mixing (IBM) plays the role of fastening the thin seed coating layer to the substrate and enhancing the adhesion of the Cu conductive path on the anodized aluminum surface.

  3. The Variation of Interface Formation with Slurry Viscosity Change in Side-By-Side Tape Casting

    Bulatova, Regina; Jabbari, Masoud; Andersen, Kjeld Bøhm; Bahl, Christian

    -bindering and sintering were studied. Solvent and binder concentrations were varied in order to optimize co-casting flow, as well as the drying and sintering shrinkage. Tapes were evaluated in terms of rheological behavior of the slurries, the green and sintered tape microstructure, the quality of the interface...... area, and the mechanical properties of the green tapes...

  4. Back to the Basics Through Teacher-Made Tapes for Primary Children.

    Fehrle, Carl C.

    A simple step-by-step procedure for making individual tapes for primary-school children is outlined. Sample scripts of "Teaching the Letter 'A'", "The Five Little Pigs,""Ears To Hear" and "A Tongue To Taste" are included. Behavioral objectives and materials needed for each tape also are given. Pitfalls in tape construction and methods for making…

  5. Effect of two different kinesio taping techniques on knee kinematics and kinetics in young females.

    Guner, Senem; Alsancak, Serap; Koz, Mitat

    2015-10-01

    [Purpose] The application of kinesio taping may improve strength and performance, inhibit and facilitate motor activity, and increase range of motion. The aim of this study was to compare the effects of kinesio taping facilitation and inhibition applications on spatiotemporal knee kinematics and kinetics during walking activity in healthy subjects. [Subjects and Methods] A three-dimensional quantitative gait evaluation was performed without tape and with, facilitation and inhibition kinesio taping application on the knee. Sixteen healthy female college students (age, 19.7 ± 0.4 years; height, 1.64 ± 3.4 cm; body mass, 51.5 ± 4.8 kg) participated in the study. [Results] Spatiotemporal parameters (cadence, walking speed, stride length) were significantly different among the trials. Knee joint sagittal plane range of motion was not different with either kinesio taping application. Knee external flexion moment during the early stance phase decreased significantly with facilitation kinesio taping and increased with the inhibition kinesio taping. Knee external extension moment during the mid-stance phase increased with facilitation kinesio taping. Knee power parameters, eccentric activity in the rectus femoris during the pre-swing phase was significantly increased with inhibition kinesio taping application, while eccentric activity of the hamstrings during the terminal swing of gait was decreased. [Conclusion] These findings showed that facilitation kinesio taping application affected the terminal stance phase and that inhibition kinesio taping influenced the terminal swing phase compared with the no tape condition. PMID:26644651

  6. Ceramic microstructure and adhesion

    Buckley, D. H.

    1985-01-01

    When a ceramic is brought into contact with a ceramic, a polymer, or a metal, strong bond forces can develop between the materials. The bonding forces will depend upon the state of the surfaces, cleanliness and the fundamental properties of the two solids, both surface and bulk. Adhesion between a ceramic and another solid are discussed from a theoretical consideration of the nature of the surfaces and experimentally by relating bond forces to interface resulting from solid state contact. Surface properties of ceramics correlated with adhesion include, orientation, reconstruction and diffusion as well as the chemistry of the surface specie. Where a ceramic is in contact with a metal their interactive chemistry and bond strength is considered. Bulk properties examined include elastic and plastic behavior in the surficial regions, cohesive binding energies, crystal structures and crystallographic orientation. Materials examined with respect to interfacial adhesive interactions include silicon carbide, nickel zinc ferrite, manganese zinc ferrite, and aluminum oxide. The surfaces of the contacting solids are studied both in the atomic or molecularly clean state and in the presence of selected surface contaminants.

  7. Transport currents in Bi-2223/Ag tapes made using the tape-in-rectangular tube process, current distribution and Ic stress degradation

    Kovác, P.; Husek, I.; Melisek, T.; Metz, A.; van Eck, H. J. N.; ten Haken, B.

    2002-04-01

    Using the tape-in-rectangular tube (TIRT) process, we have made multi-core Bi-2223/Ag tapes with various numbers of filaments (10-162), and with different filament architectures and orientations. We have measured the angular dependence of the transport current of the tape samples with 'parallel' and 'perpendicular' filaments. The transversal Ic distribution obtained by spatially resolved transport measurements ('magnetic knife') illustrates that the filament quality of the TIRT tapes is better at the tape edges than in the centre. The tapes were stressed by two types of tensioning set-up (a short straight sample and a U-shaped spring) and by bending at 77 K. The Ic degradation shows different behaviour for parallel and perpendicular filaments, which is attributed to the difference in filament density and crack propagation.

  8. Transport currents in Bi-2223/Ag tapes made using the tape-in-rectangular tube process, current distribution and Ic stress degradation

    Using the tape-in-rectangular tube (TIRT) process, we have made multi-core Bi-2223/Ag tapes with various numbers of filaments (10-162), and with different filament architectures and orientations. We have measured the angular dependence of the transport current of the tape samples with 'parallel' and 'perpendicular' filaments. The transversal Ic distribution obtained by spatially resolved transport measurements ('magnetic knife') illustrates that the filament quality of the TIRT tapes is better at the tape edges than in the centre. The tapes were stressed by two types of tensioning set-up (a short straight sample and a U-shaped spring) and by bending at 77 K. The Ic degradation shows different behaviour for parallel and perpendicular filaments, which is attributed to the difference in filament density and crack propagation. (author)

  9. Examination of a Junction-Box Adhesion Test for Use in Photovoltaic Module Qualification: Preprint

    Miller, D. C.; Wohlgemuth, J. H.

    2012-08-01

    Engineering robust adhesion of the junction-box (j-box) is a hurdle typically encountered by photovoltaic (PV) module manufacturers during product development. There are historical incidences of adverse effects (e.g., fires) caused when the j-box/adhesive/module system has failed in the field. The addition of a weight to the j-box during the 'damp heat' IEC qualification test is proposed to verify the basic robustness of its adhesion system. The details of the proposed test will be described, in addition to the preliminary results obtained using representative materials and components. The described discovery experiments examine moisture-cured silicone, foam tape, and hot-melt adhesives used in conjunction with PET or glass module 'substrates.' To be able to interpret the results, a set of material-level characterizations was performed, including thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis. PV j-boxes were adhered to a substrate, loaded with a prescribed weight, and then placed inside an environmental chamber (at 85C, 85% relative humidity). Some systems did not remain attached through the discovery experiments. Observed failure modes include delamination (at the j-box/adhesive or adhesive/substrate interface) and phase change/creep. The results are discussed in the context of the application requirements, in addition to the plan for the formal experiment supporting the proposed modification to the qualification test.

  10. Examination of a Junction-Box Adhesion Test for Use in Photovoltaic Module Qualification (Presentation)

    Miller, D. C.; Wohlgemuth, J. H.

    2012-08-01

    Engineering robust adhesion of the junction-box (j-box) is a hurdle typically encountered by photovoltaic (PV) module manufacturers during product development. There are historical incidences of adverse effects (e.g., fires) caused when the j-box/adhesive/module system has failed in the field. The addition of a weight to the j-box during the 'damp heat' IEC qualification test is proposed to verify the basic robustness of its adhesion system. The details of the proposed test will be described, in addition to the preliminary results obtained using representative materials and components. The described discovery experiments examine moisture-cured silicone, foam tape, and hot-melt adhesives used in conjunction with PET or glass module 'substrates.' To be able to interpret the results, a set of material-level characterizations was performed, including thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis. PV j-boxes were adhered to a substrate, loaded with a prescribed weight, and then placed inside an environmental chamber (at 85C, 85% relative humidity). Some systems did not remain attached through the discovery experiments. Observed failure modes include delamination (at the j-box/adhesive or adhesive/substrate interface) and phase change/creep. The results are discussed in the context of the application requirements, in addition to the plan for the formal experiment supporting the proposed modification to the qualification test.

  11. Effect of the Kinesio tape to muscle activity and vertical jump performance in healthy inactive people

    Lu Szu-Ching

    2011-08-01

    Full Text Available Abstract Background Elastic taping applied on the triceps surae has been commonly used to improve the performance of lower extremities. However, little objective evidence has been documented. The purpose of this study was to investigate the effect of elastic taping on the triceps surae during a maximal vertical jump. It was hypothesized that elastic taping to the triceps surae would increase muscle activity and cause positive effect to jump height. Methods Thirty-one healthy adults (19 males and 12 females with mean age, body weight and height for 25.3 ± 3.8 years old, 64.1 ± 6.2 kg, and 169.4 ± 7.3 cm, respectively were recruited. All participants performed vertical jump tests prior to (without taping and during elastic taping. Two elastic tapes, Kinesio tape and Mplacebo tape from two different manufacturers, were applied to the participants, respectively. Results The results showed that the vertical ground reaction force increased when Kinesio tape was applied even when the height of jump remained about constant. However, the height of the jump decreased, and there was no difference on the vertical ground reaction force in Mplacebo taping group. Although the EMG activity of medial gastrocnemius tended to increase in Kinesio taping group, we did not see differences in EMG activity for the medial gastrocnemius, tibialis anterior and soleus muscles in either group. Conclusions Based on the varied effects of Kinesio tape and Mplacebo tape, different intervention technique was suggested for specific purpose during vertical jump movement. Mplacebo tape was demanded for the benefits of stabilization, protection, and the restriction of motion at the ankle joint. On the other hand, the findings may implicate benefits for medial gastrocnemius muscle strength and push-off force when using Kinesio tape.

  12. Use of statistical design of experiments in the optimization of Ar–O2 low-pressure plasma treatment conditions of polydimethylsiloxane (PDMS) for increasing polarity and adhesion, and inhibiting hydrophobic recovery

    Butrón-García, María Isabel; Jofre-Reche, José Antonio; Martín-Martínez, José Miguel

    2015-01-01

    Polydimethylsiloxane (PDMS) film was treated with RF low-pressure plasmas (LPPs) made of mixtures of oxygen and argon for increasing surface polarity, minimizing hydrophobic recovery (i.e. retard ageing) and increasing adhesion to acrylic adhesive tape for medical use. Statistical design of experiments has been used for determining the most influencing experimental parameters of the LPP treatment of PDMS. Water contact angle values (measured 24 h after treatment) and the O/C ratio obtained fr...

  13. Characterization of adhesively bonded joints using bulk adhesive properties

    Kon, Haruhiko

    1991-01-01

    Though using bulk adhesive properties to predict adhesively bonded joint response has yet to be proven infallible, based upon the success of previous works, this effort attempts to shed some light on the stresses present in a typical automotive bonded joint. Adhesive material properties obtained in previous works were used in a finite element analysis of a simulated automotive joint to predict the stresses in that joint. The automotive joint analyzed was a simplified repr...

  14. High-definition tape-to-film transfer

    Helt, Francois

    1992-08-01

    With the collaboration of Thomson Broadcast Ex Machina has developed a full digital tape-to-film transfer process. This system accepts as input any European Analog or Digital formats: 1 inch B. T. S. 4xDl. . . It is based on a fully computerized image processing and is fully automated from the loading of the Dl tapes to the 35mm negative output. This process includes spatial and temporal filtering to get full scan 35 mmimage quality. As the input format is 50 fields per second (non-square pixels) and the output format is 24 frames per second (square pixels) the key point was to obtain a good spatial resolution without dynamic artefacts like excessive blur moving images or patterns at vertical edges. Steps of the process are as follows: - Digital copy on four 4:2:2 tapes as necessary - Transfer on computer network - Adaptive filtering by software - Gamma correction and output on 35mmfilm recorder. The processing speed has been improved by controlling four processes in parallel. High Definition tape to film transfer is available right now. The transfer capacity is 30 minutes per week since the end of last year. 1 - PRESENTATION OF THE PROJECT With the collaboration of THOMSON Broadcast Ex Machina has developed a fully digital High Definition tape-to-film transfer process. This sytem is designed to permit transfer on 35mm film of productions made with the European High Definition Standard. As a computer graphics production company Ex Machina has been producing sequences on various media including digital video high definition video 35 mm film and has finished recently a 3 mn film on 70 mm IMAX format. Two ongoing projects use this same standard with one having been designed for stereoscopic projection. Building on this expertise Ex Machina proposed to realize a tape to film transfer system for the European Economic Interest Grouping (EIIG) Vision 1250 in co-operation with another european organisation Eureka 95. For the development of such a system the company

  15. Segmented superconducting tape having reduced AC losses and method of making

    Foltyn, Stephen R. (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Arendt, Paul N. (Los Alamos, NM); Holesinger, Terry G. (Los Alamos, NM); Wang, Haiyan (Los Alamos, NM)

    2009-09-22

    A superconducting tape having reduced AC losses. The tape has a high temperature superconductor layer that is segmented. Disruptive strips, formed in one of the tape substrate, a buffer layer, and the superconducting layer create parallel discontinuities in the superconducting layer that separate the current-carrying elements of the superconducting layer into strips or filament-like structures. Segmentation of the current-carrying elements has the effect of reducing AC current losses. Methods of making such a superconducting tape and reducing AC losses in such tapes are also disclosed.

  16. A software package to process an INIS magnetic tape on the VAX computer

    This paper presents a software package whose function is to process the magnetic tapes distributed by the Atomic Energy Agency, on the VAX computers. These tapes contain abstracts of papers in the different branches of nuclear field and is supplied from the international Nuclear Information system (INIS). Two goals are aimed from this paper. First it gives a procedure to process any foreign magnetic tape on the VAX computers. Second, it solves the problem of reading the INIS tapes on a non IBM computer and thus allowing the specialists to gain from the large amount of information contained in these tapes. 11 fig

  17. The effect of high-pressure processing on unsealed Bi-2223/Ag tape

    Wang, X. C.; Qu, T.-M.; Zhao, L.; Li, P.; Han, Z.

    2007-10-01

    High-pressure (HP) processing of Ag-sheathed Bi2Si2Ca2Cu3Ox (Bi-2223) tape was investigated. In Bi-2223/Ag tapes, the outer Ag sheath might act as a sealing barrier against the penetration of the high-pressure atmosphere. In this work, short tapes after final heat treatment (FHT) were not sealed hermetically with Ag foil when HP processing was applied. The results show that the average thickness of tapes after HP processing is 2.5% lower than that of FHT tapes. However, the critical current Ic for tapes is not improved by HP processing. There are still many cracks and porosity in the superconducting core and coarse superconducting filaments are sometimes observed in transverse cross section of HP processed tapes.

  18. The effect of high-pressure processing on unsealed Bi-2223/Ag tape

    High-pressure (HP) processing of Ag-sheathed Bi2Si2Ca2Cu3Ox (Bi-2223) tape was investigated. In Bi-2223/Ag tapes, the outer Ag sheath might act as a sealing barrier against the penetration of the high-pressure atmosphere. In this work, short tapes after final heat treatment (FHT) were not sealed hermetically with Ag foil when HP processing was applied. The results show that the average thickness of tapes after HP processing is 2.5% lower than that of FHT tapes. However, the critical current Ic for tapes is not improved by HP processing. There are still many cracks and porosity in the superconducting core and coarse superconducting filaments are sometimes observed in transverse cross section of HP processed tapes

  19. ROLE OF LOW DYE TAPING FOR SHORT TERM TREATMENT OF PLANTAR FASCIITIS

    Rajni

    2016-02-01

    Full Text Available BACKGROUND Plantar fasciitis is a common cause of foot discomfort. Different treatment modalities exist for its treatment. Low dye taping is often used in conjunction with other treatment options. AIMS AND OBJECTIVES Purpose of the study was to evaluate therapeutic effect of low dye taping in plantar fasciitis. MATERIALS AND METHODS In this prospective study, 56 patients were included. Low dye taping applied for one week. First step pain (Measured on VAS scale and Foot Health Status Questionnaire domain of foot pain, foot function and general foot health were used to evaluate the patient prior to taping and after one week of low dye taping. RESULT Patient treated with low dye taping reported significant improvement in first step pain and Foot Health Questionnaires Score after one week of treatment. Five patients experienced an adverse event. CONCLUSION Low dye taping is effective in short term basis.

  20. Polyurethane adhesive ingestion.

    Fitzgerald, Kevin T; Bronstein, Alvin C

    2013-02-01

    Polyurethane adhesives are found in a large number of household products in the United States and are used for a variety of purposes. Several brands of these expanding wood glues (those containing diphenylmethane diisocyanate [MDI]) have the potential to form gastrointestinal (GI) foreign bodies if ingested. The ingested adhesive forms an expanding ball of glue in the esophagus and gastric lumen. This expansion is caused by a polymerization reaction using the heat, water, and gastric acids of the stomach. A firm mass is created that can be 4-8 times its original volume. As little as 2 oz of glue have been reported to develop gastric foreign bodies. The obstructive mass is reported to form within minutes of ingestion of the adhesive. The foreign body can lead to esophageal impaction and obstruction, airway obstruction, gastric outflow obstruction, mucosal hemorrhage, ulceration, laceration, perforation of the esophageal and gastric linings, and death. Clinical signs following ingestion include anorexia, lethargy, vomiting, tachypnea, and abdominal distention and pain, and typically develop within 12 hours. Clinical signs may depend upon the size of the mass. If left untreated, perforation and rupture of the esophagus or stomach can occur. The glue mass does not stick to the GI mucosa and is not always detectable on abdominal palpation. Radiographs are recommended to confirm the presence of the "glue-ball" foreign body, and radiographic evidence of the obstruction may be seen as early as 4-6 hours following ingestion. Emesis is contraindicated owing to the risk of aspiration of the glue into the respiratory tree or the subsequent lodging of the expanding glue mass in the esophagus. Likewise, efforts to dilute the glue and prevent the formation of the foreign body through administration of liquids, activated charcoal, or bulk-forming products to push the foreign body through the GI tract have proven ineffective. Even endoscopy performed to remove the foreign body has

  1. Syndecan proteoglycans and cell adhesion

    Woods, A; Oh, E S; Couchman, J R

    1998-01-01

    It is now becoming clear that a family of transmembrane proteoglycans, the syndecans, have important roles in cell adhesion. They participate through binding of matrix ligand to their glycosaminoglycan chains, clustering, and the induction of signaling cascades to modify the internal microfilament...... organization. Syndecans can modulate the type of adhesive responses induced by other matrix ligand-receptor interactions, such as those involving the integrins, and so contribute to the control of cell morphology, adhesion and migration....

  2. STS-103 Mission Highlights Resource Tape (2 of 2)

    2000-01-01

    The STS-103 flight crew, Commander Curtis L. Brown, Pilot Scott J. Kelly, Mission Specialists Steven L. Smith, C. Michael Foale, John M. Grunsfeld, Claude Nicollier, and Jean-Francois Clervoy, are seen passing over the Yucatan and Florida Peninsulas. Smith and Grunsfeld replace and change the S-band single transmission cables during the third and final space walk of this mission. Crewmembers are also seen taking video documentation of the solar arrays. Footage presented includes the release of the Hubble Space Telescope, thruster firing and orbit adjust burn over the Central Indian Ocean and Australia. Also shown is the night landing of Discovery at Kennedy Space Center, crew departure from the vehicle, and short statements made by the crew. This is tape 2 of 2; tape 1 has a report number of NONP-NASA-VT-2000036030.

  3. Multi-measuring tape-recording systems with statistical equalizing

    One likely way of increasing the number of channels of multi-measuring recording systems is the multi-track recording on magnetic tape of information presented in binary form. A 25-track recording system is briefly described and the fundamental technical characteristics and potentialities of such systems are indicated. A special feature of the recording system described is the use of an ''equalizing unit'', with which one can obtain a uniform tape recording of input pulses with a statistical time distribution. The main circuit of the equalizing system is given, and a means of determining its required capacity for a different spectrum shape described. The question of extracting data from multi-measuring systems is discussed. (author)

  4. Fabrication of W/Cu FGM By Aqueous Tape Casting

    Tungsten Copper-based metals (W/Cu) were extensively used as electrical contact materials in switching systems for the electric power industry. In this paper, a novel investigation to prepare Tungsten Copper-based metal composite materials according to functionally graded material (FGM) concept and the method of tape casting was reported. Cu-coated W powders with different Cu weight fraction were synthesized via electricless plain in methanol-water solvent. The green tapes with different composition and thickness were laminated and then sintered to prepare W-Cu functionally graded materials. XRD, EDS, SEM and metallographic analyses were used to characterize the material microstructure and combination between different layers. The results showed that the Cu-coated W powders had grate compressibility leading to wettability of powders. The parallelism and flatness of intermediate layer were good and the combination was tight.

  5. Kinesthetic taping improves walking function in patients with stroke

    Boeskov, Birgitte; Carver, Line Tornehøj; von Essen-Leise, Anders; Henriksen, Marius

    2014-01-01

    BACKGROUND: Stroke is an important cause of severe disability and impaired motor function. Treatment modalities that improve motor function in patients with stroke are needed. The objective of this study was to investigate the effect of kinesthetic taping of the anterior thigh and knee on maximal...... walking speed and clinical indices of spasticity in patients with stroke. METHODS: Thirty-two patients (9 women) receiving rehabilitation after stroke (average, 50 days since stroke) who had impaired walking ability were recruited. Primary outcome was maximal walking speed measured by the 10-meter walk......, although a trend was observed indicating a lesser degree of spasticity. CONCLUSION: The results of this study indicate that kinesthetic taping of the anterior thigh and knee provides an immediate improvement in walking function in patients with stroke. Such a positive effect on motor function could be a...

  6. An Improvement in Thermal Modelling of Automated Tape Placement Process

    The thermoplastic tape placement process offers the possibility of manufacturing large laminated composite parts with all kinds of geometries (double curved i.e.). This process is based on the fusion bonding of a thermoplastic tape on a substrate. It has received a growing interest during last years because of its non autoclave abilities.In order to control and optimize the quality of the manufactured part, we need to predict the temperature field throughout the processing of the laminate. In this work, we focus on a thermal modeling of this process which takes in account the imperfect bonding existing between the different layers of the substrate by introducing thermal contact resistance in the model. This study is leaning on experimental results which inform us that the value of the thermal resistance evolves with temperature and pressure applied on the material.

  7. The neural cell adhesion molecule

    Berezin, V; Bock, E; Poulsen, F M

    2000-01-01

    During the past year, the understanding of the structure and function of neural cell adhesion has advanced considerably. The three-dimensional structures of several of the individual modules of the neural cell adhesion molecule (NCAM) have been determined, as well as the structure of the complex...... between two identical fragments of the NCAM. Also during the past year, a link between homophilic cell adhesion and several signal transduction pathways has been proposed, connecting the event of cell surface adhesion to cellular responses such as neurite outgrowth. Finally, the stimulation of neurite...

  8. THE EFFECT OF FUNCTIONAL FASCIAL TAPING ON MORTON'S NEUROMA

    Spina, Rita; Cameron, Melainie; Alexander, Ron

    2002-01-01

    Objective and Background: Morton’s neuroma is essentially a benign tumor in the foot, which may cause extreme pain and disability. Both conservative and surgical modalities have been used, but as yet, neither has been successful in resolving the condition. This report introduces Functional Fascial Taping (FFT) developed by Alexander, as a new treatment regime and examines its effectiveness in the management of Morton’s neuroma. Discussion: Functional Foot Index (FFI) was used to assess the ef...

  9. The Effects of Kinesio™ Taping on Proprioception at the Ankle

    Mark DeBeliso; Ross Vaughn; Jeff Lien; McChesney, John W.; Travis Halseth

    2004-01-01

    An experiment was designed to determine if KinesioTM taping the anterior and lateral portion of the ankle would enhance ankle proprioception compared to the untaped ankle. 30 subjects, 15 men, 15 women, ages 18-30 participated in this study. Exclusion criteria: Ankle injury < 6 months prior to testing, significant ligament laxity as determined through clinical evaluation by an ATC, or any severe foot abnormality. Experiment utilized a single group, pretest and posttest. Plantar flexion and in...

  10. Kinesio taping effect on biceps brachii muscle strength

    Králová Dagmar; Novotný Jan; Řezaninová Jana

    2013-01-01

    This work aimed at presenting the idea of inventor Dr. Kenzo Kase that kinesio tape application with proximal base leads to muscle contraction facilitation and application with distal base leads to muscle contraction inhibition. Twenty male volleyball players with the dominant shoulder girdle muscle imbalance between the ages of 25 and 30 participated in this study. There were compared two techniques which were placed on biceps brachii muscle in shoulder and elbow joint extension. Isokinetic ...

  11. Tape casting of cobalt ferrite from nonaqueous slurry

    Jian, Gang, E-mail: jiangang456@126.com [School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003 (China); MOE Engineering Research Center for Information Functional Ceramics, Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China); Zhou, Dongxiang, E-mail: dxzhou@mail.hust.edu.cn [MOE Engineering Research Center for Information Functional Ceramics, Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China); Yang, Junyou [State Key Laboratory of Materials Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 (China); Fu, Qiuyun [MOE Engineering Research Center for Information Functional Ceramics, Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China)

    2012-12-15

    This paper describes the fabrication of CoFe{sub 2}O{sub 4} thick films using the tape casting method from nonaqueous slurry. CoFe{sub 2}O{sub 4} particles with average size of {approx}800 nm were prepared by the solid-state reaction method. Sediment volumes and viscosity were tested to study the effects of dispersant in reducing aggregations in slurry. Slurry with 0.25 wt% dispersant amounts and 41.3 wt% solid content showed the optimal stability and rheological properties. A tape velocity of 8 cm/s was used in this study considering the non-Newtonian flow behavior at low shear rate. CoFe{sub 2}O{sub 4} ceramic films sintered at 1150 Degree-Sign C for 2 h have dense structure (relative density of 94%) and exhibited ferromagnetic properties with in-plane saturation magnetization of {approx}324 emu/cm{sup 3}. - Highlights: Black-Right-Pointing-Pointer CoFe{sub 2}O{sub 4} thick films were fabricated by the nonaqueous tape casting method. Black-Right-Pointing-Pointer Slurry with 0.25 wt% dispersant amounts and 41.3 wt% solid content showed the optimal stability and rheological properties. Black-Right-Pointing-Pointer The cold isostatic pressed CIP treatment enhanced the structure of green tapes. Black-Right-Pointing-Pointer CoFe{sub 2}O{sub 4} ceramic films sintered at 1150 Degree-Sign C for 2 h exhibited optimal structure and properties.

  12. External reinforcing of fiber concrete constructions by carbon fiber tapes

    S.V. Klyuyev; Yu.V. Guryanov

    2013-01-01

    Strengthening the concrete and reinforced concrete structures with carbon fiber tapes is very actively applied in Europe nowadays. In Russia composites based on carbon fiber have also widely spread recently. The main advantages of these materials for strengthening structures are its high specific strength (strength-weight ratio) and strength-to-density ratio.Experimental studies on strengthening and restoration of the constructions were held. Flexible fiber concrete constructions based on man...

  13. Electromechanical characterization of superconducting wires and tapes at 77 K

    Bjoerstad, Roger

    The strain dependency of the critical current in state-of-the-art cuprate high-temperature superconductors (HTS) has been characterized. A universal test machine (UTM) combined with a critical current measurement system has been used to characterize the mechanical and the superconducting properties of conductors immersed in an open liquid nitrogen dewar. A set-up has been developed in order to perform simultaneous measurements of the superconductor lattice parameter changes, critical current, as well as the stress and strain at 77 K in self-field in a high energy synchrotron beamline. The HTS tapes and wires studied were based on YBCO, Bi-2223 and Bi-2212. The YBCO tapes were produced by SuperPower and American Superconductors (AMSC). Two types of Bi-2223 tapes, HT and G, were produced by Sumitomo Electric Industries (SEI). The Bi-2212 wires were produced by Oxford Superconducting Technology (OST) using Nexans granulate precursor, before undergoing a specialized over pressure (OP) processing and heat treatmen...

  14. Empirically Bounding of Space Booms with Tape Spring Hinges

    A.L. Jennings

    2013-01-01

    Full Text Available Self-deploying structures seek to provide a compact launch package for large, lightweight satellite booms. One self-deploying method is a foldable tape spring. This paper examines the large scale behavior of a boom attached by a tape spring hinge during mock deployments. A boom attached by tape spring to a rigid stand was released and the boom bounced up to 60° before coming to rest (as opposed to snap-through behavior. These large amplitude bounces can cause the boom to collide with sensors, other booms or arrays causing damage or preventing full deployment. Results show the first bounce of deployment is nearly bounded by a four parameter ellipse. The ellipses of similar folds are similar also, suggesting that a model can be developed. Free-fall tests simulating the free-free condition found in microgravity also show similar elliptical motion. Envelopes that bound the extents of the boom motion allow for collisions to be prevented by adjustment of the design.

  15. 'Twisted tape sign': Its significance in recurrent sigmoid volvulus

    Aim: Sigmoid volvulus is a common cause of intestinal obstruction in the elderly. Mild attacks of sigmoid volvulus may be more difficult to diagnose due to the lack of severity of symptoms which may resolve spontaneously only to recur after an interval. This study was a review of patients to assess the incidence of the 'twisted tape sign' and to evaluate the significance of its presence in cases of recurrent sigmoid volvulus. Methods and materials: A retrospective study over eight years revealed six cases of surgically confirmed recurrent sigmoid volvulus. Case records and barium enemas of all patients were reviewed. Results: Six patients were identified, including four men and two women, with a median age of 56 years. Diagnostic difficulties were encountered in four (67%) patients with a delay ranging between 10 and 37 months with a mean 17.3 months. Twisted tape sign was confirmed on all barium examinations retrospectively. Conclusion: Recognition of twisted tape sign on barium enema examination along with an appropriate clinical history would suggest a diagnosis of recurrent sigmoid volvulus

  16. In situ high rate growth of high temperature superconductor tapes

    Hammond, M. R. B. (Malcom R. Beasley); Peng, L. S. (Luke S.); Wang, W. (Weizhi); Jo, W.; Ohnishi, T. (Tsuyoshi); Marshall, A. F. (Ann F.); Hammond, R. H. (Robert H.); Beasley, M. R. (Malcom R.); Peterson, E. J. (Eric J.); Ericson, R. (Richard)

    2001-01-01

    In situ high rate growth of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} superconducting films has been carried out using e-beam deposition. A deposition flux controller is developed to monitor and control the deposition rates using tunable diode laser based atomic absorption. Wide range of temperatures, deposition rates, and oxygen fluxes including atomic and molecular oxygen, as well as ozone, have been explored in order to understand both kinetic and thermodynamic stability. Critical current density above 1 MA/cm{sup 2} has been achieved on SrTiO{sub 3} substrate samples in growth rate up to 75 {angstrom}/sec. Samples prepared on IBAD YSZ/Ni tapes exhibit similar R(T)s and x-ray diffraction patterns. However, critical current densities of the tapes are around kA/cm{sup 2} or lower. The poor critical current density of the tape is attributed to interaction between the YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} film and the YSZ buffer layer.

  17. Thermomechanical Analysis of Shape-Memory Composite Tape Spring

    Yang, H.; Wang, L. Y.

    2013-06-01

    Intelligent materials and structures have been extensively applied for satellite designs in order to minimize the mass and reduce the cost in the launch of the spacecraft. Elastic memory composites (EMCs) have the ability of high-strain packaging and shape-memory effect, but increase the parts and total weight due to the additional heating system. Shape-memory sandwich structures Li and Wang (J. Intell. Mater. Syst. Struct. 22(14), 1605-1612, 2011) can overcome such disadvantage by using the metal skin acting as the heating element. However, the high strain in the micro-buckled metal skin decreases the deployment efficiency. This paper aims to present an insight into the folding and deployment behaviors of shape-memory composite (SMC) tape springs. A thermomechanical process was analyzed, including the packaging deformation at an elevated temperature, shape frozen at the low temperature and shape recovery after reheating. The result shows that SMC tape springs can significantly decrease the strain concentration in the metal skin, as well as exhibiting excellent shape frozen and recovery behaviors. Additionally, possible failure modes of SMC tape springs were also analyzed.

  18. Stretchable, Adhesion-Tunable Dry Adhesive by Surface Wrinkling

    Jeong, Hoon Eui

    2010-02-16

    We introduce a simple yet robust method of fabricating a stretchable, adhesion-tunable dry adhesive by combining replica molding and surface wrinkling. By utilizing a thin, wrinkled polydimethyl siloxane (PDMS) sheet with a thickness of 1 mm with built-in micropillars, active, dynamic control of normal and shear adhesion was achieved. Relatively strong normal (∼10.8 N/cm2) and shear adhesion (∼14.7 N/cm2) forces could be obtained for a fully extended (strained) PDMS sheet (prestrain of∼3%), whereas the forces could be rapidly reduced to nearly zero once the prestrain was released (prestrain of ∼0.5%). Moreover, durability tests demonstrated that the adhesion strength in both the normal and shear directions was maintained over more than 100 cycles of attachment and detachment. © 2010 American Chemical Society.

  19. Improved Adhesion and Compliancy of Hierarchical Fibrillar Adhesives.

    Li, Yasong; Gates, Byron D; Menon, Carlo

    2015-08-01

    The gecko relies on van der Waals forces to cling onto surfaces with a variety of topography and composition. The hierarchical fibrillar structures on their climbing feet, ranging from mesoscale to nanoscale, are hypothesized to be key elements for the animal to conquer both smooth and rough surfaces. An epoxy-based artificial hierarchical fibrillar adhesive was prepared to study the influence of the hierarchical structures on the properties of a dry adhesive. The presented experiments highlight the advantages of a hierarchical structure despite a reduction of overall density and aspect ratio of nanofibrils. In contrast to an adhesive containing only nanometer-size fibrils, the hierarchical fibrillar adhesives exhibited a higher adhesion force and better compliancy when tested on an identical substrate. PMID:26167951

  20. Effect of adhesive thickness on adhesively bonded T-joint

    The aim of this work is to analyze the effect of adhesive thickness on tensile strength of adhesively bonded stainless steel T-joint. Specimens were made from SUS 304 Stainless Steel plate and SUS 304 Stainless Steel perforated plate. Four T-joint specimens with different adhesive thicknesses (0.5, 1.0, 1.5 and 2.0 mm) were made. Experiment result shows T-joint specimen with adhesive thickness of 1.0 mm yield highest maximum load. Identical T-joint specimen jointed by spot welding was also tested. Tensile test shows welded T-Joint had eight times higher tensile load than adhesively bonded T-joint. However, in low pressure application such as urea granulator chamber, high tensile strength is not mandatory. This work is useful for designer in fertilizer industry and others who are searching for alternative to spot welding

  1. Digital Linear Tape (DLT) technology and product family overview

    Lignos, Demetrios

    1994-01-01

    The demand that began a couple of years ago for increased data storage capacity continues. Peripheral Strategies (a Santa Barbara, California, Storage Market Research Firm) projects the amount of data stored on the average enterprise network will grow by 50 percent to 100 percent per year. Furthermore, Peripheral Strategies says that a typical mid-range workstation system containing 30GB to 50GB of storage today will grow at the rate of 50 percent per year. Dan Friedlander, a Boulder, Colorado-based consultant specializing in PC-LAN backup, says, 'The average NetWare LAN is about 8GB, but there are many that have 30GB to 300GB.....' The substantial growth of storage requirements has created various tape technologies that seek to satisfy the needs of today's and, especially, the next generations's systems and applications. There are five leading tape technologies in the market today: QIC (Quarter Inch Cartridge), IBM 3480/90, 8mm, DAT (Digital Audio Tape) and DLT (Digital Linear Tape). Product performance specifications and user needs have combined to classify these technologies into low-end, mid-range, and high-end systems applications. Although the manufacturers may try to position their products differently, product specifications and market requirements have determined that QIC and DAT are primarily low-end systems products while 8mm and DLT are competing for mid-range systems applications and the high-end systems space, where IBM compatibility is not required. The 3480/90 products seem to be used primarily in the IBM market, for interchangeability purposes. There are advantages and disadvantages for each of the tape technologies in the market today. We believe that DLT technology offers a significant number of very important features and specifications that make it extremely attractive for most current as well as emerging new applications, such as Hierarchical Storage Management (HSM). This paper will demonstrate why we think that the DLT technology and family

  2. Design of one-dimensional power spectrum using two-dimensional fast Fourier transform for discrimination of paper-based kraft tapes.

    Sasaoka, Sara; Saito, Koichi; Higashi, Kenjirou; Limwikrant, Waree; Moribe, Kunikazu; Suzuki, Shinichi; Yamamoto, Keiji

    2015-12-01

    A novel type of spectrum, the one-dimensional power spectrum (1D-PS), was designed for the discrimination of adhesive packing tapes, i.e., kraft tapes. The 1D-PS offered complementary information to that provided by the improved two-dimensional PS (2D-PS), which was calculated using our previously established image processes combined with a two-dimensional fast Fourier transform (2D-FFT) to obtain information about the spatial periodicity within kraft tapes. The 1D-PS was calculated using a three-step image process: (i) the 2D-FFT was applied to 50 randomly selected areas in a transmitted light image; (ii) the obtained 2D-PSs were accumulated without applying a logarithmic transform; (iii) the wavenumber and the maximum intensity were plotted on the x-axis and y-axis, respectively. Through an intra-roll comparison, the 1D-PSs collected from single rolls showed similar profiles. In an inter-roll comparison, the 1D-PSs from 50 commercially available brand-name products were classified into 29 groups. The 1D-PSs contained other useful information than that provided by the improved 2D-PSs: they presented more peaks and absolute intensity with a wider range. The 1D-PSs enabled us to compare the spectra quickly and easily, owing to their unchanging profiles regardless of the orientation of the scanned images. A combined use of the 1D-PSs with the improved 2D-PSs-both spectrum types being convenient, rapid, non-destructive, and applicable to dirty and/or damaged samples-could further improve the identification of kraft tapes. PMID:26461031

  3. Syndecans, signaling, and cell adhesion

    Couchman, J R; Woods, A

    1996-01-01

    structures within the heparan sulfate chains, leaving the roles of chondroitin sulfate chains and extracellular portion of the core proteins to be elucidated. Evidence that syndecans are a class of receptor involved in cell adhesion is mounting, and their small cytoplasmic domains may link with the...... transmembrane signaling from matrix to cytoskeleton, as proposed for other classes of adhesion receptors....

  4. Hyaluronan-mediated cellular adhesion

    Curtis, Jennifer

    2005-03-01

    Many cells surround themselves with a cushioning halo of polysaccharides that is further strengthened and organized by proteins. In fibroblasts and chrondrocytes, the primary component of this pericellular matrix is hyaluronan, a large linear polyanion. Hyaluronan production is linked to a variety of disease, developmental, and physiological processes. Cells manipulate the concentration of hyaluronan and hyaluronan receptors for numerous activities including modulation of cell adhesion, cell motility, and differentiation. Recent investigations by identify hyaluronan's role in mediating early-stage cell adhesion. An open question is how the cell removes the 0.5-10 micron thick pericellular matrix to allow for further mature adhesion events requiring nanometer scale separations. In this investigation, holographic optical tweezers are used to study the adhesion and viscoelastic properties of chondrocytes' pericellular matrix. Ultimately, we aim to shed further light on the spatial and temporal details of the dramatic transition from micron to nanometer gaps between the cell and its adhesive substrate.

  5. [Retention of adhesive bridges].

    Raes, F; De Boever, J

    1994-04-01

    Since the development of adhesive bridges in the early seventies, the retention and therefore the durability of these bridges has been tremendously improved. Conditioning of the non-precious metal by silanisation, careful acid etching of the enamel and the use of the appropriate composite resin are of prime importance. Furthermore, the meticulous preparation with enough interproximal embrace, occlusal rests, interocclusal clearance and cingulum stops is equally important. Including more teeth in the design does not necessarily lead to an improved retention. Besides the material and technical aspects, the whole clinical procedure needs much attention. The retention does not depend on one single factor, but on the precision of all the necessary clinical steps and on a well-defined selection of the material. In this way a five-year survival rate of close to 80% can be obtained. PMID:11830965

  6. Thermal and tensile strength testing of thermally-conductive adhesives and carbon foam

    Chertok, Maxwell; Irving, Michael; Neher, Christian; Shi, Mengyao; Tolfa, Kirk; Tripathi, Mani; Vinson, Yasmeen; Wang, Ruby; Zheng, Gayle

    2016-01-01

    Future collider detectors, including silicon tracking detectors planned for the High Luminosity LHC, will require components and mechanical structures providing unprecedented strength-to-mass ratios, thermal conductivity, and radiation tolerance. This paper studies carbon foam used in conjunction with thermally conductive epoxy and thermally conductive tape for such applications. Thermal conductivity and tensile strength measurements of aluminum-carbon foam-adhesive stacks are reported. Initial radiation damage tests are also presented. These results can inform bonding method choices for future tracking detectors.

  7. Pre-tension generates strongly reversible adhesion of a spatula pad on substrate.

    Chen, Bin; Wu, Peidong; Gao, Huajian

    2009-06-01

    Motivated by recent studies on reversible adhesion mechanisms of geckos and insects, we investigate the effect of pre-tension on the orientation-dependent adhesion strength of an elastic tape adhering on a substrate. Our analysis shows that the pre-tension can significantly increase the peel-off force at small peeling angles while decreasing it at large peeling angles, leading to a strongly reversible adhesion. More interestingly, we find that there exists a critical value of pre-tension beyond which the peel-off force plunges to zero at a force-independent critical peeling angle. We further show that the level of pre-tension required for such force-independent detachment at a critical angle can be induced by simply dragging a spatula pad along a substrate at sufficiently low angles. These results provide a feasible explanation of relevant experimental observations on gecko adhesion and suggest possible strategies to design strongly reversible adhesives via pre-tension. PMID:18801716

  8. Effect of fibril shape on adhesive properties

    Soto, Daniel; Hill, Ginel; Parness, Aaron; Esparza, Noé; Cutkosky, Mark; Kenny, Tom

    2010-08-01

    Research into the gecko's adhesive system revealed a unique architecture for adhesives using tiny hairs. By using a stiff material (β-keratin) to create a highly structured adhesive, the gecko's system demonstrates properties not seen in traditional pressure-sensitive adhesives which use a soft, unstructured planar layer. In contrast to pressure sensitive adhesives, the gecko adhesive displays frictional adhesion, in which increased shear force allows it to withstand higher normal loads. Synthetic fibrillar adhesives have been fabricated but not all demonstrate this frictional adhesion property. Here we report the dual-axis force testing of single silicone rubber pillars from synthetic adhesive arrays. We find that the shape of the adhesive pillar dictates whether frictional adhesion or pressure-sensitive behavior is observed. This work suggests that both types of behavior can be achieved with structures much larger than gecko terminal structures. It also indicates that subtle differences in the shape of these pillars can significantly influence their properties.

  9. Impact of oils and coatings on adhesion of structural adhesives

    Hagström, Marcus

    2015-01-01

    This is a master thesis project conducted for Scania CV AB in collaboration with Swerea Kimab. The purpose is to examine how oils and coatings on the surface affect the adhesion of adhesives. Earlier work done by Scania indicate that the amount of oil applied may have an impact on the adhesion. Substrates tested are hot dipped galvanised steel, electro galvanised. AlSi and ZnMg. Oils used are Anticorit RP 3802 that is an anti-corrosive oil and Renoform 3802 that is a drawing oil. The two adhes...

  10. AC loss in stacks of Bi-2223/Ag tapes modified with ferromagnetic covers at the edges

    Safran, S; Goemoery, F [Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska cesta 9, 842 39 Bratislava (Slovakia); Gencer, Ali [Physics Department, Faculty of Sciences, Ankara University, Tandogan, 06100 Ankara (Turkey)

    2010-10-15

    We investigated the magnetization loss of stacked Bi-2223/Ag tapes with a ferromagnetic cover on the edges. Such modification has been found recently to reduce the AC loss of a single tape; however, the behavior in a coil winding could be different. With experiments and numerical calculations we show that a ferromagnetic cover on the edges of a superconducting tape could reduce its magnetization loss also when the tapes are arranged in a stack. The effect is weaker for larger numbers of tapes but nevertheless remained significant in a stack of four tapes, which was the maximum number studied here. The effects observed experimentally are nicely explained by the results of numerical calculations.

  11. Fabrication and AC transport losses for Ag-sheathed Bi-2223 tapes using rectangular deformation process

    The AC transport losses in self-field at 77 K have been investigated for the Ag-sheathed Bi-2223 multifilamentary tapes prepared by rectangular deformation process. The rectangular wires with 20 (5 x 4 arrangement) filaments and different aspect ratio of their cross-section were fabricated by two-axial rolling machine, and subsequently they were converted to the tape-form conductors by the one-axial flat rolling and heat treatments. The initial configurations of rectangular wires before applying the flat rolling affect the filament shape near the tape edge in the final tapes. Furthermore, transport loss behaviors for investigated tapes also depend on the initial configurations of rectangular wires, although the main contribution to the losses comes from the hysteresis loss of the superconductor. This may be caused by the difference in filament shape and lateral Jc distributions in the cross-section of each tape samples

  12. Effects of Kinesio taping on joint position sense of the ankle.

    Seo, Hyun-Do; Kim, Min-Young; Choi, Jung-Eun; Lim, Ga-Hee; Jung, Seong-In; Park, So-Hyun; Cheon, Song-Hee; Lee, Hae-Yong

    2016-04-01

    [Purpose] The purpose of this study was to examine the effect of Kinesio taping on the joint position sense of the ankle. [Subjects and Methods] The subjects of this study were 26 nomal adults who had experienced ankle sprain. Kinesio taping was applied over the ankle medial ligament and ankle lateral ligament with eight pattern reinforcement taping. Joint position sense was measured using isokinetic equipment (Biodex System 4 pro dynamometer, Biodex Medical systems Inc., USA) during dorsiflexion/plantarflexion and inversion/eversion, before and after taping. Statistical analyses were performed using SPSS 21.0 for Windows. [Results] Joint position sense after Kinesio taping was improved in the dorsiflexion and inversion positions. [Conclusion] According to the results of this study, Kinesio taping of the ankle is effective for the prevention of ankle sprain. PMID:27190446

  13. Uso da kinesio taping na dor lombar: revisão sistemática

    Cristiano Vargas Batista

    2014-01-01

    Full Text Available Introduction: Different treatments are proposed to treating back pain, including the kinesio taping. Objective: To verify the use of kinesio taping for low back pain treatment. Methods: A systematic review was conducted, consulting the databases: PubMed, EMBASE, CINAHL, PEDro and ACP Journal Club. We used the descriptors: kinesiotaping, kinesio taping, kinesio tape or kinesiotape. We included clinical trials that focused on the use of kinesio taping in the treatment of low back pain. The Jadad score and the PEDro score were used to assess the methodological quality. Results: Three manuscripts were included in the review. By the PEDro score, two manuscripts were considered of high methodological quality, and one of these also by the Jadad score. Conclusions: Despite the quality of two studies, the results showed no effectiveness of kinesio taping in low back pain.

  14. Wet adhesion and adhesive locomotion of snails on anti-adhesive non-wetting surfaces.

    Neil J Shirtcliffe

    Full Text Available Creating surfaces capable of resisting liquid-mediated adhesion is extremely difficult due to the strong capillary forces that exist between surfaces. Land snails use this to adhere to and traverse across almost any type of solid surface of any orientation (horizontal, vertical or inverted, texture (smooth, rough or granular or wetting property (hydrophilic or hydrophobic via a layer of mucus. However, the wetting properties that enable snails to generate strong temporary attachment and the effectiveness of this adhesive locomotion on modern super-slippy superhydrophobic surfaces are unclear. Here we report that snail adhesion overcomes a wide range of these microscale and nanoscale topographically structured non-stick surfaces. For the one surface which we found to be snail resistant, we show that the effect is correlated with the wetting response of the surface to a weak surfactant. Our results elucidate some critical wetting factors for the design of anti-adhesive and bio-adhesion resistant surfaces.

  15. Wet Adhesion and Adhesive Locomotion of Snails on Anti-Adhesive Non-Wetting Surfaces

    Shirtcliffe, Neil J.; McHale, Glen; Newton, Michael I.

    2012-01-01

    Creating surfaces capable of resisting liquid-mediated adhesion is extremely difficult due to the strong capillary forces that exist between surfaces. Land snails use this to adhere to and traverse across almost any type of solid surface of any orientation (horizontal, vertical or inverted), texture (smooth, rough or granular) or wetting property (hydrophilic or hydrophobic) via a layer of mucus. However, the wetting properties that enable snails to generate strong temporary attachment and the effectiveness of this adhesive locomotion on modern super-slippy superhydrophobic surfaces are unclear. Here we report that snail adhesion overcomes a wide range of these microscale and nanoscale topographically structured non-stick surfaces. For the one surface which we found to be snail resistant, we show that the effect is correlated with the wetting response of the surface to a weak surfactant. Our results elucidate some critical wetting factors for the design of anti-adhesive and bio-adhesion resistant surfaces. PMID:22693563

  16. Adhesion and multi-materials

    Adhesion is a multidisciplinary science relevant to many practical fields. The main application of adhesion is bonding by adhesives. This technique is widely used in the industrial world and more specifically in the advanced technical domains. Adhesion is also involved in multi-component materials such as coatings, multilayer materials, polymer blends, composite materials... The multidisciplinary aspect of adhesion is well demonstrated by considering the wide variety of concepts, models and theories proposed for its description. An example of the adhesion between a fiber and a matrix in a composite material will lead to a general model relating the molecular properties of the interface to its capacity of stress transfer and hence to the macroscopic mechanical properties of the composite. This relationship is valid whatever the fiber (glass, carbon, polymeric) or the polymer matrix (thermoplastics, thermosetting). Any deviation from this model can be attributed to the existence of an interfacial zone or interphase exhibiting properties, mainly mechanical properties, different from the bulk matrix. Two examples are examined: the first one deals with the creation of a trans crystalline interphase in a semi-crystalline thermoplastic matrix and the second one is concerned with the formation of a pseudo glassy interphase in an elastomer matrix. These examples stress the need for complementary approaches in the understanding of adhesion phenomena at different levels of knowledge, from molecular to macroscopic. They also show how important it is to understand the mechanisms of formation of inter phases in order to be able to master the performance of multicomponent materials. (Author)

  17. Optimization of Rolling Process for Bi(2223)/Ag Superconducting Tapes by a Statistical Method

    2001-01-01

    Ag-sheathed (Bi,Pb)2Sr2Ca2Cu3Ox tapes were prepared by the powder-in-tube method. The influences of rolling parameters on superconducting characteristics of Bi(2223)/Ag tapes were analyzed qualitatively with a statistical method. The results demonstrate that roll diameter and reduction per pass significantly influence the properties of superconducting tapes while roll speed does less and working friction the least. An optimized rolling process was therefore achieved according to the above results.

  18. Microstructure, texture and critical current of Ag-sheathed 2223 multifilament tapes

    Liu, Y.L.; Wang, W.G.; Poulsen, H.F.;

    1999-01-01

    An Ag-sheathed 2223 multifilament tape was produced by the powder-in-tube method. The various parts of the tape were heat treated at different temperatures under reduced oxygen partial pressure. The microstructure and the texture were characterized by synchrotron x-ray diffraction and SEM and...... within the multifilament tape were characterized. The influence of the inhomogeneous structure on J(c) is discussed....

  19. Effect of the Kinesio tape to muscle activity and vertical jump performance in healthy inactive people

    Lu Szu-Ching; Hsieh Tsung-Hsun; Huang Chen-Yu; Su Fong-Chin

    2011-01-01

    Abstract Background Elastic taping applied on the triceps surae has been commonly used to improve the performance of lower extremities. However, little objective evidence has been documented. The purpose of this study was to investigate the effect of elastic taping on the triceps surae during a maximal vertical jump. It was hypothesized that elastic taping to the triceps surae would increase muscle activity and cause positive effect to jump height. Methods Thirty-one healthy adults (19 males ...

  20. Effect of two different kinesio taping techniques on knee kinematics and kinetics in young females

    Guner, Senem; Alsancak, Serap; Koz, Mitat

    2015-01-01

    [Purpose] The application of kinesio taping may improve strength and performance, inhibit and facilitate motor activity, and increase range of motion. The aim of this study was to compare the effects of kinesio taping facilitation and inhibition applications on spatiotemporal knee kinematics and kinetics during walking activity in healthy subjects. [Subjects and Methods] A three-dimensional quantitative gait evaluation was performed without tape and with, facilitation and inhibition kinesio t...

  1. Kinesio Taping for Shoulder Impingement: a Practical Lesson for Physiotherapy Students

    Rask, Henri

    2015-01-01

    The purpose of this thesis was to implement a practical lesson of kinesio taping for shoulder impingement for physiotherapy students in Satakunta University of Applied Sciences. The aim was to provide the attendants of the lesson a preparedness to use kinesio taping as a part of a physiotherapeutic treatment for shoulder impingement. The purpose was to gather information about kinesio taping, shoulder structure and shoulder impingement. After teaching the basic information about the three ...

  2. Effects of Kinesio taping on joint position sense of the ankle

    Seo, Hyun-Do; Kim, Min-Young; Choi, Jung-Eun; Lim, Ga-Hee; Jung, Seong-In; Park, So-Hyun; Cheon, Song-Hee; Lee, Hae-Yong

    2016-01-01

    [Purpose] The purpose of this study was to examine the effect of Kinesio taping on the joint position sense of the ankle. [Subjects and Methods] The subjects of this study were 26 nomal adults who had experienced ankle sprain. Kinesio taping was applied over the ankle medial ligament and ankle lateral ligament with eight pattern reinforcement taping. Joint position sense was measured using isokinetic equipment (Biodex System 4 pro dynamometer, Biodex Medical systems Inc., USA) during dorsifle...

  3. Hi fi digital audio tape to SUN workstation transfer system for digital audio data

    Gartenlaub, Arie Gal

    1994-01-01

    This thesis describes a subsystem developed to provide for the transfer of digital audio signals from a SUN SPARCstation 10 workstation to a digital audio tape (DAT) and vice versa. The new system expands the audio recording/reproduction options available in the laboratory by integrating an analog tape deck and a digital tape deck with the SUN workstation. The desired connection enables working with a larger audio bandwidth to achieve better audio performance and resolution in comparison to t...

  4. Fabrication and characterization of the joining of Bi-Pb-Sr-Ca-Cu-O superconductor tape

    We evaluated the effects of the joining process on the electrical and mechanical properties of Bi-2223 superconductor tape fabricated by the powder-in-tube technique. The joining of tapes was carried out by a lap-joint method. In the process, tapes were masked and etched to expose the superconductor cores in windows located near or at the end of the tape. The exposed cores of the two tapes were brought into contact, uniaxially pressed in the range 140-4000 MPa and sintered. The current carrying capacity of the jointed tape was evaluated as a function of uniaxial pressure and the shape of windows. It was observed that the current carrying capacity was reduced in the transition region of the jointed tape because of the non-uniform microstructure during the pressing. In addition, the current carrying capacity was significantly dependent on the uniaxial pressure. The highest current carrying capacity was obtained to be ∼90% for the jointed tape to the tape itself by optimizing the window shape and pressure. It is believed that the highest value of current carrying capacity results from improvements in interface uniformity, core density, contacting area and grain alignment. The strain tolerance of the jointed tape was also evaluated, and the irreversible strain was measured to be 0.1%, which is lower than that of the unjointed tape. The decrease in the strain tolerance for jointed tape is believed to be due to the irregular interface and Ag intrusion in the transition region which acts as a stress concentration. (author)

  5. Generation of ultra-sound during tape peeling

    Marston, Jeremy O.; Riker, Paul W.; Thoroddsen, Sigurdur T.

    2014-01-01

    We investigate the generation of the screeching sound commonly heard during tape peeling using synchronised high-speed video and audio acquisition. We determine the peak frequencies in the audio spectrum and, in addition to a peak frequency at the upper end of the audible range (around 20 kHz), we find an unexpected strong sound with a high-frequency far above the audible range, typically around 50 kHz. Using the corresponding video data, the origins of the key frequencies are confirmed as be...

  6. Occupational exposure to asbestos in the drywall taping process.

    Verma, D K; Middleton, C G

    1980-04-01

    Studies of airborne asbestos fiber concentrations associated with various operations of the drywall taping process have been undertaken in the province of Alberta, Canada. The results show that mixing, sanding and sweeping created high levels of airborne asbestos dust. The measured concentrations were frequently in excess of occupational health standards. Sanding in particular was assessed the most hazardous operation. The results are discussed in light of present and proposed Occupational Health Standards, and in terms of its implications for other workers, household contacts, and consumer's risk. Measures to reduce and control the health hazards associated with the process are described. PMID:7395743

  7. The magnetic stability of face-cooled composite tape superconductors

    This paper proposes the concept of face-cooled composite tape to stabilize high critical current entities in Nb3Sn, V3Ga and oxides. The stability is promoted by the combined action of the dynamic stability and the transient cryogenic stability. The expression of the limiting current density of stability is derived as functions of pertinent parameters of superconductor, stabilizing normal metal and the coolant. An experimental proof of the analysis is given on Nb3Sn-Cu system. The specimens are made by stacking strips of Nb3Sn and copper alternatively

  8. Depuration Times of Donax trunculus and Tapes decussatus

    Fatma Arik Çolakolu; Mine Çardak; Serhat Çolakoglu; Ibrahim Ender Künili

    2014-01-01

    The present study was performed to determine the depuration time and ability of Donax trunculus (Wedge Clam) and Tapes decussatus (Carpet Shell) contaminated with Escherichia coli, Salmonella enterica subsp. enterica serovar Typhimurium and Vibrio parahaemolyticus. Clams were contaminated with each bacterium at the level of 7.0 - 8.0 Log10 cfu/g. After contamination, clams were analyzed every 3 h in the first 24 h time period and every 6 h until the 72nd hour. During the depuration process of...

  9. Programming input-output operations in FORTRAN on magnetic tape

    Gorokov, V. N.

    1980-01-01

    The subprogram MTCFF was designed for carrying out input-output operations in FORTRAN on magnetic tape within the framework of the DOS ES EVM operation system. It is possible, by means of this subprogram, to perform any input-output operations of interest to the programmer such as recording and reading various control operations in the direct and reverse directions, even though for these purposes the facilities of the language FORTRAN itself are limited. The subprogram can also be used in programs written in other programming languages.

  10. Strategic flat rolling of Ag/BSCCO-2223 tapes

    Nielsen, Morten Storgård; Bech, Jakob Ilsted; Eriksen, Morten;

    2002-01-01

    In the process of single-step flat rolling of multifilament Ag/BSCCO-2223 wire to tape previous work has shown the optimum strategy giving maximum critical current density to be it balance between the length and width strain, so they are of equal size i.e. so, that the logarithmic strain ratio, LSR......, reaches zero. In order to investigate the possible improvements by using multistep flat rolling, a new strategy to control the LSR in each individual step. i.e. to control the differential logarithmic strain ratio DLSR, has been investigated. The present paper shows that appropriate choice of the...

  11. Focal Adhesion Kinases in Adhesion Structures and Disease

    Pierre P. Eleniste

    2012-01-01

    Full Text Available Cell adhesion to the extracellular matrix (ECM is essential for cell migration, proliferation, and embryonic development. Cells can contact the ECM through a wide range of matrix contact structures such as focal adhesions, podosomes, and invadopodia. Although they are different in structural design and basic function, they share common remodeling proteins such as integrins, talin, paxillin, and the tyrosine kinases FAK, Pyk2, and Src. In this paper, we compare and contrast the basic organization and role of focal adhesions, podosomes, and invadopodia in different cells. In addition, we discuss the role of the tyrosine kinases, FAK, Pyk2, and Src, which are critical for the function of the different adhesion structures. Finally, we discuss the essential role of these tyrosine kinases from the perspective of human diseases.

  12. Focal adhesion kinases in adhesion structures and disease.

    Eleniste, Pierre P; Bruzzaniti, Angela

    2012-01-01

    Cell adhesion to the extracellular matrix (ECM) is essential for cell migration, proliferation, and embryonic development. Cells can contact the ECM through a wide range of matrix contact structures such as focal adhesions, podosomes, and invadopodia. Although they are different in structural design and basic function, they share common remodeling proteins such as integrins, talin, paxillin, and the tyrosine kinases FAK, Pyk2, and Src. In this paper, we compare and contrast the basic organization and role of focal adhesions, podosomes, and invadopodia in different cells. In addition, we discuss the role of the tyrosine kinases, FAK, Pyk2, and Src, which are critical for the function of the different adhesion structures. Finally, we discuss the essential role of these tyrosine kinases from the perspective of human diseases. PMID:22888421

  13. Photovoltaic module with adhesion promoter

    Xavier, Grace

    2013-10-08

    Photovoltaic modules with adhesion promoters and methods for fabricating photovoltaic modules with adhesion promoters are described. A photovoltaic module includes a solar cell including a first surface and a second surface, the second surface including a plurality of interspaced back-side contacts. A first glass layer is coupled to the first surface by a first encapsulating layer. A second glass layer is coupled to the second surface by a second encapsulating layer. At least a portion of the second encapsulating layer is bonded directly to the plurality of interspaced back-side contacts by an adhesion promoter.

  14. Adhesives from modified soy protein

    Sun, Susan; Wang, Donghai; Zhong, Zhikai; Yang, Guang

    2008-08-26

    The, present invention provides useful adhesive compositions having similar adhesive properties to conventional UF and PPF resins. The compositions generally include a protein portion and modifying ingredient portion selected from the group consisting of carboxyl-containing compounds, aldehyde-containing compounds, epoxy group-containing compounds, and mixtures thereof. The composition is preferably prepared at a pH level at or near the isoelectric point of the protein. In other preferred forms, the adhesive composition includes a protein portion and a carboxyl-containing group portion.

  15. In-field performances of commercial REBCO tapes below liquid nitrogen temperatures

    Highlights: •Jc(H, θ) for four commercial REBCO tapes were measured between 30 and 77 K. •The in-field Jc characteristics of Zr-doped REBCO tape vary among spools. •Different REBCO tapes show very different in-field performances. •The relative superiority of REBCO tapes varies with temperature. -- Abstract: We investigated critical current density (Jc) characteristics of commercial REBCO tapes of four manufacturers at temperatures between 30 and 77 K in magnetic fields up to 5 T. We first examined variation in the Jc characteristics of two Zr-doped REBCO tapes (SuperPower) of the same specifications, which are found to be quite different, indicating that the in-field Jc characteristics due to artificial pinning centers vary among spools or along the length of tape. We then investigated in-field performances of four different commercial REBCO tapes (AMSC, Fujikura, SuNAM, SuperPower), calculating performances of coils using their magnetic-field angle dependences of Jc. The REBCO tapes are found to give very different in-field performances depending on the strength and direction of field they experience, and their relative superiority is observed to vary with temperature

  16. Focal Adhesion Kinases in Adhesion Structures and Disease

    Pierre P. Eleniste; Angela Bruzzaniti

    2012-01-01

    Cell adhesion to the extracellular matrix (ECM) is essential for cell migration, proliferation, and embryonic development. Cells can contact the ECM through a wide range of matrix contact structures such as focal adhesions, podosomes, and invadopodia. Although they are different in structural design and basic function, they share common remodeling proteins such as integrins, talin, paxillin, and the tyrosine kinases FAK, Pyk2, and Src. In this paper, we compare and contrast the basic organiza...

  17. Microscratch testing method for systematic evaluation of the adhesion of atomic layer deposited thin films on silicon

    The scratch test method is widely used for adhesion evaluation of thin films and coatings. Usual critical load criteria designed for scratch testing of coatings were not applicable to thin atomic layer deposition (ALD) films on silicon wafers. Thus, the bases for critical load evaluation were established and the critical loads suitable for ALD coating adhesion evaluation on silicon wafers were determined in this paper as LCSi1, LCSi2, LCALD1, and LCALD2, representing the failure points of the silicon substrate and the coating delamination points of the ALD coating. The adhesion performance of the ALD Al2O3, TiO2, TiN, and TaCN+Ru coatings with a thickness range between 20 and 600 nm and deposition temperature between 30 and 410 °C on silicon wafers was investigated. In addition, the impact of the annealing process after deposition on adhesion was evaluated for selected cases. The tests carried out using scratch and Scotch tape test showed that the coating deposition and annealing temperature, thickness of the coating, and surface pretreatments of the Si wafer had an impact on the adhesion performance of the ALD coatings on the silicon wafer. There was also an improved load carrying capacity due to Al2O3, the magnitude of which depended on the coating thickness and the deposition temperature. The tape tests were carried out for selected coatings as a comparison. The results show that the scratch test is a useful and applicable tool for adhesion evaluation of ALD coatings, even when carried out for thin (20 nm thick) coatings

  18. Microscratch testing method for systematic evaluation of the adhesion of atomic layer deposited thin films on silicon

    Kilpi, Lauri, E-mail: Lauri.Kilpi@vtt.fi; Ylivaara, Oili M. E.; Vaajoki, Antti; Puurunen, Riikka L.; Ronkainen, Helena [VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044 VTT (Finland); Malm, Jari [Department of Physics, University of Jyväskylä, P.O. Box 35, Jyväskylä 40014 (Finland); Sintonen, Sakari [Department of Micro- and Nanosciences, Aalto University School of Electrical Engineering, P.O. Box 13500, FI-00076 AALTO (Finland); Tuominen, Marko [ASM Microchemistry Oy, Pietari Kalmin katu 1 F 2, FIN-00560 Helsinki (Finland)

    2016-01-15

    The scratch test method is widely used for adhesion evaluation of thin films and coatings. Usual critical load criteria designed for scratch testing of coatings were not applicable to thin atomic layer deposition (ALD) films on silicon wafers. Thus, the bases for critical load evaluation were established and the critical loads suitable for ALD coating adhesion evaluation on silicon wafers were determined in this paper as L{sub CSi1}, L{sub CSi2}, L{sub CALD1}, and L{sub CALD2}, representing the failure points of the silicon substrate and the coating delamination points of the ALD coating. The adhesion performance of the ALD Al{sub 2}O{sub 3}, TiO{sub 2}, TiN, and TaCN+Ru coatings with a thickness range between 20 and 600 nm and deposition temperature between 30 and 410 °C on silicon wafers was investigated. In addition, the impact of the annealing process after deposition on adhesion was evaluated for selected cases. The tests carried out using scratch and Scotch tape test showed that the coating deposition and annealing temperature, thickness of the coating, and surface pretreatments of the Si wafer had an impact on the adhesion performance of the ALD coatings on the silicon wafer. There was also an improved load carrying capacity due to Al{sub 2}O{sub 3}, the magnitude of which depended on the coating thickness and the deposition temperature. The tape tests were carried out for selected coatings as a comparison. The results show that the scratch test is a useful and applicable tool for adhesion evaluation of ALD coatings, even when carried out for thin (20 nm thick) coatings.

  19. Selective laser densification of lithium aluminosilicate glass ceramic tapes

    Highlights: ► Selective laser densification of glass-ceramic tapes has been investigated. ► A possible application to the layerwise-slurry deposition process was evaluated. ► The effect of a few percent organic in the slurry was also studied. ► A range of parameters was identified to densify layers without macroscopic defects. - Abstract: Tapes, cast by blade deposition of a lithium aluminosilicate glass slurry, were sintered using a YAG-fiber laser, with the aim of finding suitable parameters for an additive manufacturing process based on layer-wise slurry deposition and selective laser densification. The influence of the laser parameters (output power and scan velocity) on the sintering was evaluated, by scanning electron microscopy and by X-ray diffraction, on the basis of the quality of the processed layer. Well densified samples could be obtained only in a small window of values for the output power and the scan velocity. The measurement of the width of a set of single scanned lines allowed also to estimate the minimum resolution of the system along the layer plane.

  20. Critical currents in uranium-doped BiSCCO-tapes

    Toenies, S

    2000-01-01

    region, H subleft brace gb-p right brace depends on the direction of the applied field, the temperature and also the fluence. The position of this transition field was investigated. Large enhancements of the critical current densities were achieved with this irradiation method. Due to the strong activation of the silver-sheath of the samples, the applications of these tapes may be limited. But we could determine the limiting mechanisms of the critical current density in BiSCCO-tapes for the first time. regions in the (H,T)-plane, where J sub c is limited by pinning. Irradiation improves only the pinning in the grains but not the intergranular currents. Regions, where no enhancement is found, are limited by the intergranular currents. The inter- and intragranular currents were determined quantitatively from SQUID measurements of the remanent magnetic moment. Also the grain sizes were determined by this method. The influence of the irradiation on the structure of the samples depended on the uranium content: in ...

  1. STS-108 Mission Highlights Resource Tape. Part 2 of 3

    2002-01-01

    This video is a continuation of 'STS-108 Mission Highlights Resource Tape: Part 1 of 3' (Internal ID 2002049331). Flight day four footage continues with a video tour of the International Space Station (ISS). During flight day five, an exterior view of the Multipurpose Logistics Module (MPLM) is seen, followed by the crew unloading the supplies and equipment from the MPLM. Commander Dominic Gorie and Mission Specialist Linda Godwin are seen making preparations for the Extravehicular Activity (EVA) scheduled for the following day. Footage of an exterior view of the ISS is also shown. Flight day six footage includes Godwin and Mission Specialist Daniel Tani suiting up for their EVA and the installation of thermal blankets around the solar array wings of the ISS. Expedition 3 Commander Frank Culbertson is seen working in the ISS laboratory during flight day seven. Views are shown of Saudi Arabia and the Red Sea, the western coast of Australia, Cuba and Florida, and Switzerland and Northern Italy. During flight day eight, the crew is seen stowing objects in the MPLM for return to earth. The video concludes with footage of the treadmill used by the astronauts for physical exercise. Flight days nine through twelve are included in 'STS-108 Mission Highlights Resource Tape: Part 3 of 3' (Internal ID 2002049329).

  2. Process for preparing tapes from thermoplastic polymers and carbon fibers

    Chung, Tai-Shung (Inventor); Furst, Howard (Inventor); Gurion, Zev (Inventor); McMahon, Paul E. (Inventor); Orwoll, Richard D. (Inventor); Palangio, Daniel (Inventor)

    1986-01-01

    The instant invention involves a process for use in preparing tapes or rovings, which are formed from a thermoplastic material used to impregnate longitudinally extended bundles of carbon fibers. The process involves the steps of (a) gas spreading a tow of carbon fibers; (b) feeding the spread tow into a crosshead die; (c) impregnating the tow in the die with a thermoplastic polymer; (d) withdrawing the impregnated tow from the die; and (e) gas cooling the impregnated tow with a jet of air. The crosshead die useful in the instant invention includes a horizontally extended, carbon fiber bundle inlet channel, means for providing melted polymer under pressure to the die, means for dividing the polymeric material flowing into the die into an upper flow channel and a lower flow channel disposed above and below the moving carbon fiber bundle, means for applying the thermoplastic material from both the upper and lower channels to the fiber bundle, and means for withdrawing the resulting tape from the die.

  3. Heat Transfers Enhancement with Different Square Jagged Twisted Tapes

    Mr. A.V.Gawandare

    2014-03-01

    Full Text Available The present experimental work are carried out with copper twisted tape inserts 3mm with 5.2,4.2 and 3.2 twists respectively. The inserts when placed in the path of the flow of the fluid, create a high degree of turbulence resulting in an increase in the heat transfer rate and the pressure drop. The work includes the determination of friction factor and heat transfer coefficient for various twisted wire inserts with varying twists and different materials. The Reynolds number is varied from 5000 to 16000. Correlations for Nusselt number and friction factor are developed for the twisted wire inserts from the obtained results. The results of varying twists in square jagged tape with different pitches have been compared with the values for the smooth tube. The 3mm thick with 3.2 twists copper insert shows increase in Nusselt number values by 76% however there is increase in friction factor by only 19.5% as compared to the smooth tube values.

  4. Electronic transport through tape-porphyrin molecular bridges

    We investigated theoretically how molecular conjugation affects current-voltage (I-V) curves through three types of oligoporphyrin molecules, i.e., the tape-porphyrin, the butadiyne-linked porphyrin, and the edge-fused porphyrin molecules. Among these, the tape-porphyrin molecule is found to be the most conductive due to its extremely small HOMO-LUMO energy gap. Furthermore, the I-V curves through this type of molecule are found to depend considerably on atomic sites to which electrodes are connected. In particular, as long as the applied bias is weak, the current is found to flow strongest when both electrodes are connected to the atomic sites referred to as meso sites. This feature is caused by the fact that the HOMO relevant to resonant tunneling has a higher charge density on the meso sites. These findings indicate that designing not only molecules but also contact structures is highly significant for realizing a desirable function in single molecular devices

  5. Electromagnetic properties of Bi-2223/Ag concentric tapes

    It is well established that near the silver interface highly textured Bi-2223 layers compared to the inner ceramic core may be obtained. Thus Bi-2223 multilayered concentric tapes with silver matrix are very promising in increasing transport critical current densities. In the present work the authors report on the electromagnetic characterization of short tapes having in their cross-section a very thin HTS flattened ring with Ag inside and outside of it. The samples were prepared by the powder in tube method and have self-field critical current densities Jc of the order of 3 x 104 A/cm2 at 77 K. Transport and SQUID magnetization measurements revealed weak link nature of the samples in low magnetic fields. Large transport Jc(B) hysteresis was observed at 4.2 K and magnetic fields up to 20 T. Magnetic field profiles measurements with miniature Hall sensors are in qualitative accordance with model calculations supposing homogeneous current density distribution across the superconducting core

  6. Denture Adhesives - A Literature Review

    Sudhanshu Shekhar

    2016-06-01

    Full Text Available Successful complete denture treatment combines exemplary technique, effective patient rapport and education and familiarity with all possible management options to provide the highest degree of patient satisfaction. Dentists need to know about denture adhesives to be able to identify those patients who actually need them and to be able to educate them about the advantages, disadvantages and correct use of these products. Denture adhesives are commercially available nontoxic, soluble materials that when applied to the tissue surface of dentures enhance their retention, stability and performance. They were introduced in dentistry in the late 18th century. The first patent related to adhesives was issued in 1913, followed in the 1920’s and 1930’s. The purpose of the use of denture adhesives can be described as to subjectively benefit denture-wearers with improved stability, retention and comfort of their dentures, and with improved incisal force, masticatory ability, and confidence.

  7. Laser surface modification and adhesion

    Mittal, K L

    2014-01-01

    The book provides a unique overview on laser techniques and applications for the purpose of improving adhesion by altering surface chemistry and topography/morphology of the substrate. It details laser surface modification techniques for a wide range of industrially relevant materials (plastics, metals, ceramics, composites) with the aim to improve and enhance their adhesion to other materials. The joining of different materials is of critical importance in the fabrication of many and varied products.

  8. Notch-Mediated Cell Adhesion

    Akihiko Murata; Shin-Ichi Hayashi

    2016-01-01

    Notch family members are generally recognized as signaling molecules that control various cellular responses in metazoan organisms. Early fly studies and our mammalian studies demonstrated that Notch family members are also cell adhesion molecules; however, information on the physiological roles of this function and its origin is limited. In this review, we discuss the potential present and ancestral roles of Notch-mediated cell adhesion in order to explore its origin and the initial roles of...

  9. Adhesive capsulitis: a case report

    Kazemi, Mohsen

    2000-01-01

    Adhesive capsulitis or frozen shoulder is an uncommon entity in athletes. However, it is a common cause of shoulder pain and disability in the general population. Although it is a self limiting ailment, its rather long, restrictive and painful course forces the affected person to seek treatment. Conservative management remains the mainstay treatment of adhesive capsulitis. This includes chiropractic manipulation of the shoulder, therapeutic modalities, mobilization, exercise, soft tissue ther...

  10. Advances in development of Ag-clad Bi-based superconducting tapes

    Full text: Significant advances in development of the Ag-clad Bi-based superconducting tapes have been recently achieved by the Wollongong group. These include understanding of the effect of initial phase composition on sintering temperature, formation mechanism of high Tc phase, control of sausaging formation during rolling and effect of atmosphere on microstructure of the tapes. Techniques such as 'sandwich rolling' process have been developed to prevent the formation of sausaging and cracks in longitudinal direction of the Ag-clad Bi-based superconducting tapes. High Jc for Ag/Bi-2212 tapes achieved through MTG in the alternating oxygen and nitrogen atmosphere. While N2 annealing on cooling ensures high Tc, O2 treatment during melting period enhances the stability of 2212, allowing for grain growth with ample liquid formation. Direct observation of the interface achieved by removing Ag sheath with Hg alloy shows highly dense, textured and thin-film like structure. Ca2PbO4 was found to have significant effect of sintering temperature. Incorporation of Ca2PbO4 into 2212 phase can reduce the duration of 2223 tape process to below 100 h, resulting high Jc with a record performance in magnetic field. 23.4% of zero field Jc value was retained in 1T. Grain growth in 2223 tape must be well controlled in order to optimise Jc. Features of 2212 tape and 2223 tape are compared in terms of their processing, microstructure and electromagnetic properties. Potential strong links in the tape are proposed to be the low angle tilt boundaries where the Cu-O planes are well connected. The pinning potential, Uo, for 2223 tape, determined by using magnetoresistance measurements, is larger than that for the best 2212 tape and epitaxial thin films while Uo for the latter is, in turn, higher than 2212 single crystal. This may be attributed to the difference in dislocation density in these materials

  11. Current evidence does not support the use of Kinesio Taping in clinical practice: a systematic review

    Patrícia do Carmo Silva Parreira

    2014-03-01

    Full Text Available Questions: Is Kinesio Taping more effective than a sham taping/placebo, no treatment or other interventions in people with musculoskeletal conditions? Is the addition of Kinesio Taping to other interventions more effective than other interventions alone in people with musculoskeletal conditions? Design: Systematic review of randomised trials. Participants: People with musculoskeletal conditions. Intervention: Kinesio Taping was compared with sham taping/placebo, no treatment, exercises, manual therapy and conventional physiotherapy. Outcome measures: Pain intensity, disability, quality of life, return to work, and global impression of recovery. Results: Twelve randomised trials involving 495 participants were included in the review. The effectiveness of the Kinesio Taping was tested in participants with: shoulder pain in two trials; knee pain in three trials; chronic low back pain in two trials; neck pain in three trials; plantar fasciitis in one trial; and multiple musculoskeletal conditions in one trial. The methodological quality of eligible trials was moderate, with a mean of 6.1 points on the 10-point PEDro Scale score. Overall, Kinesio Taping was no better than sham taping/placebo and active comparison groups. In all comparisons where Kinesio Taping was better than an active or a sham control group, the effect sizes were small and probably not clinically significant or the trials were of low quality. Conclusion: This review provides the most updated evidence on the effectiveness of the Kinesio Taping for musculoskeletal conditions. The current evidence does not support the use of this intervention in these clinical populations. PROSPERO registration: CRD42012003436. [Parreira PdCS, Costa LdCM, Hespanhol Junior LC, Lopes AD, Costa LOP (2014 Current evidence does not support the use of Kinesio Taping in clinical practice: a systematic review. Journal of Physiotherapy 60: 31–39

  12. Self-assembled monolayer of 3-aminopropyltrimethoxysilane for improved adhesion between aluminum alloy substrate and polyurethane coating

    A good adhesion between a polymer coating and a metal or metal alloy substrate such as Al 2024-T3 plays a critical role in corrosion protection of metal substrates. In our study, a self-assembled monolayer film of 3-aminopropyltrimethoxysilane was formed on Al 2024-T3 substrate by covalent bonding. The adhesion property of a self-priming polyurethane coating was evaluated by pull-off adhesion test, wet tape test and thermal cycling test. All the testing results indicate that both dry and wet adhesion properties of the polyurethane coating were improved significantly after APS treatment of Al 2024-T3 in polar solvents such as methanol and acetone. In nonpolar solvents such as hexane, the APS treatment led to inconsistent improvement or sometime decreased adhesion of polyurethane coating. X-ray photoelectron spectroscopic study revealed that while a monolayer film was formed on the aluminum alloy surface after treating the substrate with APS in methanol and acetone, a multilayer film was formed on the substrate surface when the treatment was conducted in hexane. The APS monolayer film served as a covalent bond linkage between polymer coating and aluminum alloy substrates, which led to the increased adhesion property of polymer coating and corrosion resistance of the metal alloy substrate

  13. Plasma polymerization for cell adhesive/anti-adhesive implant coating

    Meichsner, Juergen; Testrich, Holger; Rebl, Henrike; Nebe, Barbara

    2015-09-01

    Plasma polymerization of ethylenediamine (C2H8N2, EDA) and perfluoropropane (C3F8, PFP) with admixture of argon and hydrogen, respectively, was studied using an asymmetric 13.56 MHz CCP. The analysis of the plasma chemical gas phase processes for stable molecules revealed consecutive reactions: C2H8N2 consumption, intermediate product NH3, and main final product HCN. In C3F8- H2 plasma the precursor molecule C3F8 and molecular hydrogen are consumed and HF as well as CF4 and C2F6 are found as main gaseous reaction products. The deposited plasma polymer films on the powered electrode are strongly cross-linked due to ion bombardment. The stable plasma polymerized films from EDA are characterized by high content of nitrogen with N/C ratio of about 0.35. The plasma polymerized fluorocarbon film exhibit a reduced F/C ratio of about 1.2. Adhesion tests with human osteoblast cell line MG-63 on coated Ti6Al4V samples (polished) compared with uncoated reference sample yielded both, the enhanced cell adhesion for plasma polymerized EDA and significantly reduced cell adhesion for fluorocarbon coating, respectively. Aging of the plasma polymerized EDA film, in particular due to the reactions with oxygen from air, showed no significant change in the cell adhesion. The fluorocarbon coating with low cell adhesion is of interest for temporary implants. Funded by the Campus PlasmaMed.

  14. Properties of PTFE tape as a semipermeable membrane in fluorous reactions

    Brendon A. Parsons

    2015-06-01

    Full Text Available In a PTFE tape phase-vanishing reaction (PV-PTFE, a delivery tube sealed with PTFE tape is inserted into a vessel which contains the substrate. The reagent diffuses across the PTFE tape barrier into the reaction vessel. PTFE co-polymer films have been found to exhibit selective permeability towards organic compounds, which was affected by the presence of solvents. In this study, we attempted to establish general trends of permeability of PTFE tape to different compounds and to better describe the process of solvent transport in PV-PTFE bromination reactions. Though PTFE tape has been reported as impermeable to some compounds, such as dimethyl phthalate, solvent adsorption to the tape altered its permeability and allowed diffusion through channels of solvent within the PTFE tape. In this case, the solvent-filled pores of the PTFE tape are chemically more akin to the adsorbed solvent rather than to the PTFE fluorous structure. The solvent uptake effect, which was frequently observed in the course of PV-PTFE reactions, can be related to the surface tension of the solvent and the polarity of the solvent relative to the reagent. The lack of pores in bulk PTFE prevents solvents from altering its permeability and, therefore, bulk PTFE is impermeable to most solvents and reagents. However, bromine, which is soluble in liquid fluorous media, diffused through the bulk PTFE. A better understanding of the PTFE phase barrier will make it possible to further optimize the PV-PTFE reaction design.

  15. Effect of pore formers on properties of tape cast porous sheets for electrochemical flue gas purification

    Schmidt, Cristine Grings; Kammer Hansen, Kent; Andersen, Kjeld Bøhm; Fu, Zongwen; Roosen, Andreas; Kaiser, Andreas

    2016-01-01

    Ce0.9Gd0.1O1.95 (CGO) electrolytes for electrochemical flue gas purification multilayers were fabricated by tape casting and sintering using different types, shapes and sizes of pore formers. The resulting tapes (with thickness of about 400μm) were characterized by scanning electron microscopy, g...

  16. Preparation of magnetic tapes for the transfer of information to/from other computer systems

    This report documents the method by which a magnetic tape may be written on the CRNL CYBER 170 Model 175/6600 computer system in order to transfer information (source programs and/or coded data) to other computer systems. It will also enable a user to provide the specifications for an incoming magnetic tape which is to be written on another computer system

  17. Anisotropic thermal transport in Bi2223/Ag superconducting tape with sandwiched structure

    Highlights: ► Anisotropic thermal conductivity of the Bi2223/Ag tape was measured. ► Thermal conductivity was analyzed using an equivalent heat current circuit. ► Thermal transports along the length and width directions were nearly the same. -- Abstract: The thermal conductivity, κ(T), of the Bi2223/Ag tape reinforced by metal tapes (stainless steel (SS) or copper-based alloy (CA)) from both side was evaluated along the length (l) and width (w) directions. κ(T) along the l-direction was measured directly using a single tape and that along the w-direction was estimated from the κ(T) measured for a stacked bundle which consists of several sandwiched Bi2223/Ag tapes. We analyzed the obtained κ(T) curves using an equivalent heat current circuit, and found that the heat transports along both directions were nearly the same and that the route of heat-flow depended on the species of the reinforcing metal. The absolute values of κ(T) at 77 K along the l- and w- directions for the Bi2223/Ag-SS tape were 174 and 140 W m−1 K−1 and those for the Bi2223/Ag-CA tape were 206 and 206 W m−1 K−1, respectively, the values of which were approximately 30–40% and 10–15% smaller than those of the standard Bi2223/Ag tape

  18. Properties of PTFE tape as a semipermeable membrane in fluorous reactions.

    Parsons, Brendon A; Smith, Olivia Lin; Chae, Myeong; Dragojlovic, Veljko

    2015-01-01

    In a PTFE tape phase-vanishing reaction (PV-PTFE), a delivery tube sealed with PTFE tape is inserted into a vessel which contains the substrate. The reagent diffuses across the PTFE tape barrier into the reaction vessel. PTFE co-polymer films have been found to exhibit selective permeability towards organic compounds, which was affected by the presence of solvents. In this study, we attempted to establish general trends of permeability of PTFE tape to different compounds and to better describe the process of solvent transport in PV-PTFE bromination reactions. Though PTFE tape has been reported as impermeable to some compounds, such as dimethyl phthalate, solvent adsorption to the tape altered its permeability and allowed diffusion through channels of solvent within the PTFE tape. In this case, the solvent-filled pores of the PTFE tape are chemically more akin to the adsorbed solvent rather than to the PTFE fluorous structure. The solvent uptake effect, which was frequently observed in the course of PV-PTFE reactions, can be related to the surface tension of the solvent and the polarity of the solvent relative to the reagent. The lack of pores in bulk PTFE prevents solvents from altering its permeability and, therefore, bulk PTFE is impermeable to most solvents and reagents. However, bromine, which is soluble in liquid fluorous media, diffused through the bulk PTFE. A better understanding of the PTFE phase barrier will make it possible to further optimize the PV-PTFE reaction design. PMID:26199652

  19. Two-dimensional and transient thermal model of the continuous tape laying process

    Skandali, M.; Jansen, K.M.B.; Koussios, S.; Sinke, J.; Benedictus, R.

    2015-01-01

    The purpose of this study is to simulate the two-dimensional, transient and continuous heat transfer during the thermoset Automated Tape Laying (ATL) process. The heat transfer analysis is coupled with a cure kinetics model of the thermoset prepreg tapes used for the process. Unlike most studies, th

  20. Elongated grains in cube textured nickel substrate tapes and flat wires

    Cube textured nickel substrate tapes and flat wires with an increased grain aspect ratio were prepared from nickel micro-alloyed with silver plus yttrium and silver, respectively. Whereas the maximum grain aspect ratio for the tapes was about 6, this value reached up to 14 for the flat wires

  1. 36 CFR 1275.64 - Reproduction of tape recordings of Presidential conversations.

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Reproduction of tape... § 1275.64 Reproduction of tape recordings of Presidential conversations. (a) To ensure the preservation... locations established by the Archivist in accordance with § 1275.62. (d) The reproduction for members of...

  2. Homogeneous Current Distribution in Multi-laminated HTS Tape Conductor for Pancake Coil of SMES

    Hamajima, T.; Chiba, Y.; Atomura, N.; Takahashi, T.; Miyagi, D.; Tsuda, M.; Shikimachi, K.; Hirano, N.; Nagaya, S.

    A multi-laminated HTS tape conductor has been recently developed to fabricate large pancake coils such as SMES. If the HTS tapes are simply laminated to form the conductor, the current distribution in the laminated tape conductor of the coil is unbalanced because of different inductances of all tapes. The pancake coil has been widely used for large magnet, because the pancake coil is tightly wound and endures large electromagnetic force. The tape transpositions at both ends of the pancake coil are effective for the coil fabrication, because it cannot damage the conductor. It is very important to analyze current distribution in the multi-laminated tape conductor used for the pancake coil. In this paper, we analyze the current distribution in the tape conductor by using circuit model, and then propose a relationship between the laminated tape number of the conductor and the pancake coil number to obtain the homogeneous current distribution. We fabricated the double pancake coil based on the relation, tested it to verify the relation and demonstrated the homogeneous current distribution in the conductor.

  3. Effects of Managers’ Work Motivation and Networking Activity on Their Reported Levels of External Red Tape

    Torenvlied, R.; Akkerman, A.

    2012-01-01

    This study brings together two perspectives on managers’ reported levels of red tape. The work motivation perspective explains how managers’ characteristics, such as work engagement (alienation) or commitment, affect their reported levels of red tape. The external control perspective explains how ma

  4. Effects of Tape-Recorded Aural Models on Sight-Reading and Performance Skills.

    Anderson, James N.

    1981-01-01

    Investigated the effect of using tape-recorded aural models for home practice on selected sight-reading and performance skills of sixth-grade clarinet students. The tape recordings had no observed effects on the selected music skills, nor did the students using them complete more music exercises, as had been hypothesized. (Author/SJL)

  5. Analytical investigation in bending characteristic of twisted stacked-tape cable conductor

    Takayasu, Makoto; Chiesa, Luisa

    2015-12-01

    An analytical model to evaluate bending strains of a twisted stack-tape cable (TSTC) conductor has been developed. Through a comparison with experimental results obtained for a soldered 32-tape YBCO TSTC conductor, it has been found that a Perfect-Slip Model (PSM) taking into account the slipping between tapes in a stacked-tape cable during bending gives much better estimation of the bending performance compared to a No-Slip Model (NSM). In the PSM case the tapes can slip so that the internal longitudinal axial strain can be released. The longitudinal strains of compression and tension regions along the tape are balanced in one twist-pitch and cancel out evenly in a long cable. Therefore, in a cable the strains due to bending can be minimized. This is an important advantage of a TSTC conductor. The effect of the cable diameter size on the bending strain is also expected to be minor, and all tapes composing a TSTC conductor have the same strain response under bending, therefore the cable critical current can be characterized from a single tape behaviour.

  6. Colloidal processing, tape casting and sintering of PLZT for development of piezoceramic/polymer interlayered composites

    Feng, Jian-Huei

    Piezoceramic/polymer composites possess many advantages as compared to single-phase piezoceramics. One typical form of the composites is the interlayered structure, where the main requirement is to obtain thin, flat and dense ceramic sheets. Tape casting is a reliable process for producing such high-quality sheets. The colloidal processing of tape casting slurries is a critical step to achieve uniform ceramic bodies. Lanthanum-modified lead zirconate titanate (PLZT) was selected for making piezoceramic sheets due to its superior piezoelectric properties. The quality of green tapes depends mainly on the solvents and organic additives of tape casting slurries. The effects of xylenes/ethanol solvent mixtures on non-aqueous slurries were first investigated. Well-dispersed colloidal suspensions were obtained in xylenes-rich solvents with a minimum amount of menhaden fish oil as a dispersant. Adsorption of dispersant and PLZT solids content of unfired tapes are strongly affected by the solvent(s) utilized. Furthermore, when selecting solvent mixtures, one needs to consider other additives, such as binder that can affect the viscosity of slurries. Aqueous tape casting was performed using a polyelectrolyte dispersant, poly(vinyl alcohol) (PVA) binders and various plasticizers. Zeta potential, conductivity and viscosity of PLZT suspensions containing dispersant were characterized. The effects of plasticizers and binders on properties of unfired tapes were also investigated. The tapes made from low molecular weight plasticizers showed higher plasticity. Glycerol was shown to be the most effective plasticizer for PVA. Strong hydrogen bonding in high hydrolysis PVA led to high strength and high bulk density of green tapes, but also caused deformation of the tapes after drying. There are many challenges for sintering PLZT tapes due to volatilization of PbO component at high temperatures and fragility of thin tapes. By using the proper setter powders and the sandwich method

  7. Effects of low-dye taping on plantar pressure pre and post exercise: an exploratory study.

    Nolan, Damien

    2009-01-01

    BACKGROUND: Low-Dye taping is used for excessive pronation at the subtalar joint of the foot. Previous research has focused on the tape\\'s immediate effect on plantar pressure. Its effectiveness following exercise has not been investigated. Peak plantar pressure distribution provides an indirect representation of subtalar joint kinematics. The objectives of the study were 1) To determine the effects of Low-Dye taping on peak plantar pressure immediately post-application. 2) To determine whether any initial effects are maintained following exercise. METHODS: 12 asymptomatic subjects participated; each being screened for excessive pronation (navicular drop > 10 mm). Plantar pressure data was recorded, using the F-scan, at four intervals during the testing session: un-taped, baseline-taped, post-exercise session 1, and post-exercise session 2. Each exercise session consisted of a 10-minute walk at a normal pace. The foot was divided into 6 regions during data analysis. Repeated-measures analysis of variance (ANOVA) was used to assess regional pressure variations across the four testing conditions. RESULTS: Reduced lateral forefoot peak plantar pressure was the only significant difference immediately post tape application (p = 0.039). This effect was lost after 10 minutes of exercise (p = 0.036). Each exercise session resulted in significantly higher medial forefoot peak pressure compared to un-taped; (p = 0.015) and (p = 0.014) respectively, and baseline-taped; (p = 0.036) and (p = 0.015) respectively. Medial and lateral rearfoot values had also increased after the second session (p = 0.004), following their non-significant reduction at baseline-taped. A trend towards a medial-to-lateral shift in pressure present in the midfoot immediately following tape application was still present after 20 minutes of exercise. CONCLUSION: Low-Dye tape\\'s initial effect of reduced lateral forefoot peak plantar pressure was lost after a 10-minute walk. However, the tape continued

  8. Innovative Electrostatic Adhesion Technologies

    Bryan, Tom; Macleod, Todd; Gagliano, Larry; Williams, Scott; McCoy, Brian

    2015-01-01

    Developing specialized Electro-Static grippers (commercially used in Semiconductor Manufacturing and in package handling) will allow gentle and secure Capture, Soft Docking, and Handling of a wide variety of materials and shapes (such as upper-stages, satellites, arrays, and possibly asteroids) without requiring physical features or cavities for a pincher or probe or using harpoons or nets. Combined with new rigid boom mechanisms or small agile chaser vehicles, flexible, high speed Electro-Static Grippers can enable compliant capture of spinning objects starting from a safe stand-off distance. Electroadhesion (EA) can enable lightweight, ultra-low-power, compliant attachment in space by using an electrostatic force to adhere similar and dissimilar surfaces. A typical EA enabled device is composed of compliant space-rated materials, such as copper-clad polyimide encapsulated by polymers. Attachment is induced by strong electrostatic forces between any substrate material, such as an exterior satellite panel and a compliant EA gripper pad surface. When alternate positive and negative charges are induced in adjacent planar electrodes in an EA surface, the electric fields set up opposite charges on the substrate and cause an electrostatic adhesion between the electrodes and the induced charges on the substrate. Since the electrodes and the polymer are compliant and can conform to uneven or rough surfaces, the electrodes can remain intimately close to the entire surface, enabling high clamping pressures. Clamping pressures of more than 3 N/cm2 in shear can be achieved on a variety of substrates with ultra-low holding power consumption (measured values are less than 20 microW/Newton weight held). A single EA surface geometry can be used to clamp both dielectric and conductive substrates, with slightly different physical mechanisms. Furthermore EA clamping requires no normal force be placed on the substrate, as conventional docking requires. Internally funded research and

  9. Preparation of Lanthanum-Doped Pb(Zr,Ti)O3 Ceramics Sheets by Tape Casting

    2007-01-01

    The physical and electrical properties of lanthanum doped Pb(Zr,Ti)O3 ceramic sheets (PLZT) which were prepared by tape casting method were carried out. Tape casting of lanthanum modified PZT was performed using commercial cellulose acetate binders and poly(ethylene glycol) plasticizers in ethanol solvent. Tapes from these slips were casted on a polymer substrate. The PLZT green tapes were stacked for 5 units and sintered in air at 1050℃ for 1 h with heating rate 5℃/min. SEM micrographs show that the tape is dense (90.26% of theoretical density) and rather uniform with grain size of approximately 1.1 ? m. The dielectric permittivity and loss tangent of PLZT ceramics as a function of temperature at 1 kHz suggest that the compounds exhibit a phase transition of diffuse type. The transition temperature (Tm) and piezoelectric coefficient (d33) were 110℃ and 117 pC/N, respectively.

  10. Mechanical Behavior of Yttria-Stabilized Zirconia Aqueous Cast Tapes and Laminates

    V. Moreno

    2014-01-01

    Full Text Available Aqueous tape casting was used to produce yttria-stabilized zirconia films for electrolyte-supported solid oxide fuel cell (SOFC. Tape casting slurries were prepared varying the binder content between 20 and 25 wt%. A commercial acrylic emulsion served as binder. Rheological measurements of the two slurries were performed. Both slurries showed a shear-thinning behavior. Tapes with 25 wt% binder exhibited adequate flexibility and a smooth and homogeneous surface, free of cracks and other defects. Suitable conditions of lamination were found and a theoretical density of 54% in the laminates was achieved. Laminated tapes showed higher tensile strength compared to single sheets. Tape orientation has a significant influence on the mechanical properties. Tensile strength, elongation to strain, and Young’s modulus measured in samples produced in the direction of casting showed higher property values.

  11. Powder metallurgy for the fabrication of bi-axially textured Ni tapes for YBCO coated conductors

    Bi-axially textured Ni tapes for YBCO coated conductors were fabricated by forming, sintering, cold rolling and heat treatment of Ni powder compacts. The powder metallurgy process consists of filling of fine Ni powders in a rubber mold, cold isostatical pressing in a water chamber and sintering of the powder compacts. The sintered compacts were cold-rolled and made into tapes with a thickness of 100 micron and then heat-treated at 1000 deg. C for various time periods for the development of the (2 0 0) texture. The (2 0 0) texture of Ni tape was successfully formed through the optimization of the recrystallization heat treatment condition for the cold rolled Ni tapes. The full width half maximum of the Ni tapes was 8-10 deg. and the atomic force microscopy surface roughness was 3-5 nm

  12. ATR-FTIR Spectroscopy for the Characterization of Magnetic Tape Materials

    Tobias Weber

    2011-01-01

    Full Text Available The Music Archive of the Ethnological Museum (National Museums Berlin, Germany houses a large number of recordings on phonograph cylinders and magnetic tapes. The project ILKAR (Integrated Solutions for Preservation, Archiving and Conservation of Endangered Magnetic Tapes and Cylinders aims at prioritising the digitisation of the more than 10,000 magnetic tapes of the Archive. In this contribution, the usefulness of Attenuated Total Reflectance - Fourier Transform Infrared Spectroscopy for the characterisation of the constituent materials of magnetic tapes is discussed. The final aim of the research is the characterisation of the most endangered materials of the Archive's collection and the evaluation of their conservation state. A range of complementary techniques should aid in the characterisation of the main tape types housed in the archive and will help to achieve a better understanding of their decay processes.

  13. Characteristics of joint resistance with different kinds of HTS tapes for heater trigger switch

    Lee, Je Yull; Park, Young Gun; Lee, Woo Seung; Jo, Hyun Chul; Ko, Tae Kuk [Yonsei University, Seoul (Korea, Republic of); Yoon, Yong Soo [Shin Ansan University, Ansan (Korea, Republic of)

    2014-03-15

    Recently, many researches on the system of superconducting power supply and superconducting magnetic energy storage (SMES) using high temperature superconducting (HTS) tapes has been progressed. Those kinds of superconducting devices use the heater trigger switches that have a control delay problem at moments of heating up and cooling down. One way to reduce the time delay is using a different HTS tape at trigger part. For example, HTS tape having lower critical temperature can reduce time delay of heating up and heating down stage for heater trigger operation. This paper deals with resistances joint with different kinds of HTS tapes which have different properties to verify usefulness of the suggested method. Three kinds of commercial HTS tapes with different specifications are selected as samples and two kinds of solders are used for comparison. Joint is performed with temperature and pressure controllable joint machine and the joint characteristics are analyzed under the repeatable conditions.

  14. Elastocapilllarity in insect adhesion: the case of beetle adhesive hair

    Gernay, Sophie; Gilet, Tristan; Lambert, Pierre; Federle, Walter

    2014-11-01

    The feet of many insects are covered with dense arrays of hair-like structures called setae. Liquid capillary bridges at the tip of these micrometric structures are responsible for the controlled adhesion of the insect on a large variety of substrates. The resulting adhesion force can exceed several times the body weight of the insect. The high aspect-ratio of setae suggests that flexibility is a key ingredient in this capillary-based adhesion mechanism. There is indeed a strong coupling between their elastic deformation and the shape of the liquid meniscus. In this experimental work, we observe and quantify the local deflection of dock beetle seta tips under perpendicular loading using interference microscopy. Our results are then interpreted in the light of an analytic model of elastocapillarity. This research has been funded by the FRIA/FNRS and the Interuniversity Attraction Poles Programme (IAP 7/38 MicroMAST) initiated by the Belgian Science Policy Office.

  15. Compressive anneal processing (CAP) of Bi2223 superconducting tapes

    The conventional processing of oxide powder-in-tube Bi2223 superconductor tapes involves iterative cycles of mechanical deformation to develop texture and reduce porosity, followed by thermal annealing to react components, relieve stress and heal cracks. However, texture and deformation hardening and cracking may limit the ability to obtain the desired grain texture through deformation alone. In addition, desintering of the oxide core occurs during annealing. We have developed a compressive anneal processing (CAP) technique in which a continuous uniaxial pressure is applied during the annealing. The new process is found to promote texture formation, enhance reaction kinetics and prevent desintering and bloating. Our initial results show that the CAP technique significantly improves the critical current density. (author)

  16. Template-directed biopolymerization: tape-copying Turing machines

    Sharma, Ajeet K; 10.1142/S1793048012300083

    2013-01-01

    DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear polymer as the corresponding template. The machine utilizes input chemical energy to move along the template which also serves as a track for the movements of the machine. In the Alan Turing year 2012, it is worth pointing out that these machines are "tape-copying Turing machines". We review the operational mechanisms of the polymerizer machines and their collective behavior from the perspective of statistical physics, emphasizing their common features in spite of the crucial differences in their biological functions. We also draw attention of the physics community to another class of modular machines that carry out a different type of template-directed polymerization. We hope this review will inspire new kinetic models for these modular machines.

  17. Generation of ultra-sound during tape peeling

    Marston, Jeremy O.

    2014-03-21

    We investigate the generation of the screeching sound commonly heard during tape peeling using synchronised high-speed video and audio acquisition. We determine the peak frequencies in the audio spectrum and, in addition to a peak frequency at the upper end of the audible range (around 20 kHz), we find an unexpected strong sound with a high-frequency far above the audible range, typically around 50 kHz. Using the corresponding video data, the origins of the key frequencies are confirmed as being due to the substructure "fracture" bands, which we herein observe in both high-speed continuous peeling motions and in the slip phases for stick-slip peeling motions.

  18. VHS-tape system for general purpose computer. For next generation mass storage system

    Mass storage is one of the key technology of next generation computer system. A huge amount of data is produced on a field of particle and nuclear physics. These data are raw data of experiments, analysis data, Monte Carlo simulations data, etc. We search a storage device for these data at the point of view of capacity, price, size, transfer speed, etc. We have selected a VHS-tape (12.7 mm-tape, helical scan) from many storage devices. Characteristics of the VHS-tape are as follows; capacity of 14.5 GB, size of 460 cm3, price of 1,000 yen (S-VHS tape for video use), and 1.996 MB/sec transfer speed at a sustained mode. Last year, we succeeded to operate the VHS-tape system on a workstation as a I/O device with read/write speed of 1.5 MB/sec. We have tested a VHS-tape system by connecting to the channel of the general purpose computer (Fujitsu M-780/10S) in our institute. We obtained a read and write speeds of 1.07 MB/sec and 1.72 MB/sec by FORTRAN test programs, respectively. Read speeds of an open reel tape and a 3480 type cassete tape by the same test programs are 1.13 MB/sec and 2.54 MB/sec, respectively. Speeds of write operation are 1.09 MB/sec and 2.54 MB/sec for the open reel and 3480 cassete tape, respectively. A start motion of the VHS-tape for read/write operations needs about 60 seconds. (author)

  19. Investigation Of Heat Transfer Augmentation In A Tube With Different Modified Twisted Tape Inserts Under The Same Conditions

    Gürlek, Gökhan; Özbalta, Necdet

    2013-01-01

    The swirl flow devices like twisted tape, winglet, groove, conical ring, wire coil etc. have been used as passive heat transfer augmentation technique. Especially, twisted tape devices have been applied in thermal engineering systems such as boilers, heat exchangers, water heater. Many researches using swirl flow devices particularly twisted tape with different geometries for heat transfer enhancement have been published. In this paper, different modified twisted tapes which had examined in p...

  20. LANDSAT-D data format control book. Volume 6, appendix G: GSFC HDT-AM inventory tape (GHIT-AM)

    1981-01-01

    The data format specifications of the Goddard HDT inventory tapes (GHITS), which accompany shipments of archival digital multispectral scanner image data (HDT-AM tapes), are defined. The GHIT is a nine-track, 1600-BPI tape which conforms to the ANSI standard and serves as an inventory and description of the image data included in the shipment. The archival MSS tapes (HDT-AMs) contain radiometrically corrected but geometrically uncorrected image data plus certain ancillary data necessary to perform the geometric corrections.

  1. Lignin-Furfural Based Adhesives

    Prajakta Dongre

    2015-07-01

    Full Text Available Lignin recovered from the hot-water extract of sugar maple (Acer saccharum is used in this study to synthesize adhesive blends to replace phenol-formaldehyde (PF resin. Untreated lignin is characterized by lignin content and nuclear magnetic resonance (NMR analysis. The molecular weight distribution of the lignin and the blends are characterized by size exclusion chromatography (SEC. The effect of pH (0.3, 0.65 and 1, ex situ furfural, and curing conditions on the tensile properties of adhesive reinforced glass fibers is determined and compared to the reinforcement level of commercially available PF resin. The adhesive blend prepared at pH = 0.65 with no added furfural exhibits the highest tensile properties and meets 90% of the PF tensile strength.

  2. Pediatric Tape: Accuracy and Medication Delivery in the National Park Service

    Danielle D. Campagne

    2015-10-01

    Full Text Available Introduction: The objective is to evaluate the accuracy of medication dosing and the time to medication administration in the prehospital setting using a novel length-based pediatric emergency resuscitation tape. Methods: This study was a two-period, two-treatment crossover trial using simulated pediatric patients in the prehospital setting. Each participant was presented with two emergent scenarios; participants were randomized to which case they encountered first, and to which case used the National Park Service (NPS emergency medical services (EMS length-based pediatric emergency resuscitation tape. In the control (without tape case, providers used standard methods to determine medication dosing (e.g. asking parents to estimate the patient’s weight; in the intervention (with tape case, they used the NPS EMS length-based pediatric emergency resuscitation tape. Each scenario required dosing two medications (Case 1 [febrile seizure] required midazolam and acetaminophen; Case 2 [anaphylactic reaction] required epinephrine and diphenhydramine. Twenty NPS EMS providers, trained at the Parkmedic/Advanced Emergency Medical Technician level, served as study participants. Results: The only medication errors that occurred were in the control (no tape group (without tape: 5 vs. with tape: 0, p=0.024. Time to determination of medication dose was significantly shorter in the intervention (with tape group than the control (without tape group, for three of the four medications used. In case 1, time to both midazolam and acetaminophen was significantly faster in the intervention (with tape group (midazolam: 8.3 vs. 28.9 seconds, p=0.005; acetaminophen: 28.6 seconds vs. 50.6 seconds, p=0.036. In case 2, time to epinephrine did not differ (23.3 seconds vs. 22.9 seconds, p=0.96, while time to diphenhydramine was significantly shorter in the intervention (with tape group (13 seconds vs. 37.5 seconds, p<0.05. Conclusion: Use of a length-based pediatric emergency

  3. Anisotropy of the critical current in MgB2 tapes made of high energy milled precursor powder

    Hässler, W.; Kovac, P.; Eisterer, M.;

    2010-01-01

    For applications of MgB2 wires or tapes, high critical currents in high magnetic fields are essential. By using tapes in superconducting coils the anisotropic behaviour of the critical current, i.e. the dependence on the direction of the external field in relation to the tape surface, has to be...

  4. Heat transfer characteristics in micro-fin tube equipped with double twisted tapes: Effect of twisted tape and micro-fin tube arrangements

    EIAMSA-ARD S.; WONGCHAREE K.

    2013-01-01

    An experimental study was carried out to investigate the influence of double twisted-tape inserts (DTs) in micro-fin tubes (MFs) on heat transfer,friction factor and thermal performance factor characteristics of the compound devices in the following configurations:(1) twisted tapes acted in the same direction (for co-swirl) while MF and twisted tapes acted in the same (parallel) direction (MF-CoDTs:P),(2) twisted tapes acted in the same direction (for co-swirl) while micro-fin tube and twisted tapes acted in opposite directions (MF-CoDTs:O) and (3) twisted tapes acted in opposite directions for counter swirl (MF-CDTs).The MF alone and the MF equipped with a single twisted tape in parallel/opposite arrangement were also considered for comparison.The experiments were conducted for the flows with the Reynolds numbers between 5 650 and 17 000,under uniform heat flux condition.The experimental results indicate that MF-CDTs induce stronger swirl/turbulence flow,resulting in higher heat transfer rate,friction factor and thermal performance factor than other combined devices.The thermal performance factors associated with the use of MF-CDTs were found to be higher than those associated with the uses of MF-CoDTs:P,MF-CoDTs:O and MF alone up to 9.3%,6.5% and 56.4%,respectively.The empirical correlations developed using the present experimental data for the Nusselt number,friction factor and thermal performance factor are also reported.

  5. ANKLE TAPING DOES NOT IMPAIR PERFORMANCE IN JUMP OR BALANCE TESTS

    Javier Abián-Vicén

    2008-09-01

    Full Text Available This study aimed to investigate the influence of prophylactic ankle taping on two balance tests (static and dynamic balance and one jump test, in the push off and the landing phase. Fifteen active young subjects (age: 21.0 ± 4.4 years without previous ankle injuries volunteered for the study. Each participant performed three tests in two different situations: with taping and without taping. The tests were a counter movement jump, static balance, and a dynamic posturography test. The tests and conditions were randomly performed. The path of the center of pressures was measured in the balance tests, and the vertical ground reaction forces were recorded during the push-off and landing phases of the counter movement jump. Ankle taping had no influence on balance performance or in the push off phase of the jump. However, the second peak vertical force value during the landing phase of the jump was 12% greater with ankle taping (0.66 BW, 95% CI -0.64 to 1.96. The use of prophylactic ankle taping had no influence on the balance or jump performance of healthy young subjects. In contrast, the taped ankle increased the second peak vertical force value, which could be related to a greater risk of injury produced by the accumulation of repeated impacts in sports where jumps are frequently performed

  6. Thermal performance of tubular heat exchanger with multiple twisted-tape inserts

    Suriya Chokphoemphun; Monsak Pimsarn; Chinaruk Thianpong; Pongjet Promvonge

    2015-01-01

    The paper presents an experimental investigation on enhanced heat transfer and pressure loss characteristics by using single, double, triple, and quadruple twisted-tape inserts in a round tube having a uniform heat-fluxed wal . The investigation has been conducted in the heat exchanger tube inserted with various twisted-tape numbers for co-and counter-twist arrangements for the turbulent air flow, Reynolds number (Re) from 5300 to 24000. The typical single twisted-tape inserts at two twist ratios, y/w=4 and 5, are used as the base case, while the other multiple twisted-tape inserts are at y/w=4 only. The experimental results of heat transfer and pressure drop in terms of Nusselt number (Nu) and friction factor (f), respectively, reveal that Nu increases with the increment of Re and of twisted-tape number. The values of Nu for the inserted tube are in a range of 1.15–2.12 times that for the plain tube while f is 1.9–4.1 times. The thermal enhancement factor of the inserted tube under similar pumping power is evaluated and found to be above unity except for the single and the double co-twisted tapes. The quadruple counter-twisted tape insert provides the maximum thermal performance.

  7. Degradation characteristics of 2G HTS tapes with respect to an electrical breakdown

    The electrical insulation design for a superconducting coil system is important for developing high voltage superconducting apparatuses. Also, the degraded characteristics of superconducting tapes due to an electrical breakdown should be considered for superconducting coils design. In this study, the degradation characteristics of 2G high temperature superconducting (HTS) tapes were studied with respect to electrical breakdown tests. The degradation tests of 2G HTS tapes were performed with various stabilizer materials. The degradation characteristics of 2G HTS tapes such as critical current(Ic) and index number were observed by performing electrical breakdown tests. It was found that the characteristics such as Ic and index number can be degraded by an electrical breakdown. Moreover, it was concluded that the degradation characteristics of 2G HTS tapes were affected by a stabilizer material and applied breakdown voltage. The cross sectional view of 2G HTS tapes was observed by using a scanning electron microscope (SEM). As results, it is found that the degradation characteristics of 2G HTS tapes are concerned with hardness and electrical resistivity of stabilizer layers

  8. Critical current density and pinning energy in Ag-clad BPSCCO tapes

    Dou, S.X. [Wollongong Univ. (Australia). Centre for Supercond. and Electron. Mater.; Liu, H.K. [Wollongong Univ. (Australia). Centre for Supercond. and Electron. Mater.; Ionescu, M. [Wollongong Univ. (Australia). Centre for Supercond. and Electron. Mater.; Wang, W.G. [Wollongong Univ. (Australia). Centre for Supercond. and Electron. Mater.; Babic, E. [Department of Physics, University of Zagreb, 41001, Zagreb (Croatia); Kusevic, I. [Department of Physics, University of Zagreb, 41001, Zagreb (Croatia)

    1996-01-01

    A ``sandwich rolling`` process was developed to prevent the formation of sausaging and cracks in the longitudinal direction since the stress-strain state of the tape in ``sandwich`` rolling is the same as that of uniaxial pressed tape. Critical current densities of 3.2 x 10{sup 4} A/cm{sup 2} at 77 K and 2.7 x 10{sup 5} A/cm{sup 2} at 4.2 K and zero field Ag-sheathed Bi-based 2212 tapes have been achieved using a melt and atmosphere-controlled process. The comparison of pinning potential U{sub 0}(B)=U(T=0, B) for Bi-2212 tape and Bi-2223 tapes consisting of different fractions of the 2212 phase as well as Bi-2212 and Bi-2223 thin films shows that, for the same fields, the U{sub 0} for good quality 2223 tapes is at least 1.3 times that for the best 2212 tape and epitaxial thin films, indicating that in BSCCO compounds, in addition to anisotropy, the specific pinning centres such as dislocations, introduced during processing, affect the flux motion at lower B. (orig.).

  9. Thermal Edge-Effects Model for Automated Tape Placement of Thermoplastic Composites

    Costen, Robert C.

    2000-01-01

    Two-dimensional thermal models for automated tape placement (ATP) of thermoplastic composites neglect the diffusive heat transport that occurs between the newly placed tape and the cool substrate beside it. Such lateral transport can cool the tape edges prematurely and weaken the bond. The three-dimensional, steady state, thermal transport equation is solved by the Green's function method for a tape of finite width being placed on an infinitely wide substrate. The isotherm for the glass transition temperature on the weld interface is used to determine the distance inward from the tape edge that is prematurely cooled, called the cooling incursion Delta a. For the Langley ATP robot, Delta a = 0.4 mm for a unidirectional lay-up of PEEK/carbon fiber composite, and Delta a = 1.2 mm for an isotropic lay-up. A formula for Delta a is developed and applied to a wide range of operating conditions. A surprise finding is that Delta a need not decrease as the Peclet number Pe becomes very large, where Pe is the dimensionless ratio of inertial to diffusive heat transport. Conformable rollers that increase the consolidation length would also increase Delta a, unless other changes are made, such as proportionally increasing the material speed. To compensate for premature edge cooling, the thermal input could be extended past the tape edges by the amount Delta a. This method should help achieve uniform weld strength and crystallinity across the width of the tape.

  10. Transport performance of a HTS current lead prepared by the TFA-MOD processed YBCO tapes

    A superconducting current lead has been prepared using 12 tapes of the trifluoroacetates - metal organic deposition (TFA-MOD) processed Y1Ba2Cu3O7-δ (YBCO) coated conductors with critical current (Ic) of about 100 A at 77 K in self-field. The tapes are 4.5 mm in width, 220 mm in length and about 120 μm in overall thickness. The 1 μm thick superconducting YBCO layer was formed through the TFA-MOD process on HastelloyTM substrate tapes with two buffer oxide layers of Gd2Zr2O7 (GZO) and CeO2. The 12 YBCO tapes were arrayed on the both sides (six tapes on each side) of a stainless steel board with 3 mm in thickness for a board type shape. They were similarly soldered to copper caps at the both ends. The transport current of 1000 A was stably applied for 10 min in the liquid nitrogen temperature without any voltage generation in all tapes. Although some voltage in some YBCO tapes generated at the applied currents of about 1100 A, the transport current of 1200 A was successfully applied without quenching. The voltage between both copper caps linearly increased with increasing the transport current, and it was about 300 μV at an applied current of 1000 A. A low joint resistance between the YBCO tapes and the copper caps resulted in small amounts of the Joule heating at the joints when 1000 A was applied. The overall (effective) thermal conductivity of the current leads composed of YBCO tapes and the stainless steel board was much lower than that of Non-superconducting current leads. Therefore, the present current leads with small heat leakage seemed to be practically promising for superconducting magnets.

  11. Development of high-performance iron-based superconducting wires and tapes

    Highlights: • We review key properties and technical progress in high Jc pnictide wires during the last few years. • Providing a snapshot of these recent developments and a sense of their significance for applications. • Using the scalable rolling process, the 11 m long 122/Ag tapes with high Jc were produced for the first time. - Abstract: Conventional powder-in-tube (PIT) method has been the most effective technique for fabricating iron-based superconducting wires and tapes. Tremendous advances have been made during the last few years, especially for 122 family pnictide tapes. Here we review some of the most recent and significant developments in making high-performance iron-based tapes by the ex-situ PIT process, paying particular attention to several fabrication techniques to realize high-field Jc performance in terms of increase of core density and improvement of texture. At 4.2 K, the practical level transport Jc up to 0.12 MA/cm2 in 10 T and 0.1 MA/cm2 in 14 T have been achieved in the K-doped 122/Ag tapes. As for multifilamentary 122 iron-based wires and tapes, the highest Jc values reached so far are 61 kA/cm2 and 35 kA/cm2 at 4.2 K and 10 T, respectively for 7- and 19-core Sr-122 tapes. Recently, high Jc Cu-cladded and stainless steel/Ag double-sheathed 122 tapes have also been produced in order to improve either mechanical properties or thermal stability. More importantly, the scalable rolling process has been used for the first time to demonstrate high Jc values in 122 conductor tapes of 11 m in length

  12. Kinesio Taping to generate skin convolutions is not better than sham taping for people with chronic non-specific low back pain: a randomised trial

    Patrícia do Carmo Silva Parreira

    2014-06-01

    Full Text Available Question: For people with chronic low back pain, does Kinesio Taping, applied according to the treatment manual to create skin convolutions, reduce pain and disability more than a simple application without convolutions? Design: Randomised trial with concealed allocation, intention-to-treat analysis and blinded assessment of some outcomes. Participants: 148 participants with chronic non-specific low back pain. Intervention: Experimental group participants received eight sessions (over four weeks of Kinesio Taping applied according to the Kinesio Taping Method treatment manual (ie, 10 to 15% tension applied in flexion to create skin convolutions in neutral. Control group participants received eight sessions (over four weeks of Kinesio Taping with no tension, creating no convolutions. Outcome measures: The primary outcome measures were pain intensity and disability after the four-week intervention. Secondary outcomes were pain intensity and disability 12 weeks after randomisation, and global perceived effect at both four and 12 weeks after randomisation. Results: Applying Kinesio Tape to create convolutions in the skin did not significantly change its effect on pain (MD–0.4 points, 95% CI–1.3 to 0.4 or disability (MD–0.3 points, 95% CI–1.9 to 1.3 at four weeks. There was a small difference in favour of the experimental group for the secondary outcome of global perceived effect (MD 1.4 points, 95% CI 0.3 to 2.5 at four weeks. No significant between-group differences were observed for the other secondary outcomes. Conclusion: Kinesio Taping applied with stretch to generate convolutions in the skin was no more effective than simple application of the tape without tension for the outcomes measured. These results challenge the proposed mechanism of action of this therapy. Trial registration: Brazilian Registry of Clinical Trials, RBR-7ggfkv. [Parreira PCS, Costa LCM, Takahashi R, Hespanhol Junior LC, da Luz Junior MA, da Silva TM, Costa LOP

  13. Automatic storing of single gamma spectra on magnetic tape. Programs LONGO, DIRE

    The program LONGO provides the block size and the block number in a binary file on magnetic tape. It has been applied to analyse the structure of the nine-track magnetic tapes storing single or coincidence gamma spectra files, recorded in octet form by a MULTI-8 minicomputer in the Nuclear Spectrometry Laboratory of J.E.N. Then the program DIRE has been written to transform the single gamma spectra into a new FASTRAND disk file, storing the information in-36 bit words. A copy of this file is obtained on magnetic tape and the single gamma spectra are then available by standard FORTRAN V reading sentences. (Author) 3 refs

  14. Effects of low-dye taping on plantar pressure pre and post exercise: an exploratory study

    Nolan Damien

    2009-04-01

    Full Text Available Abstract Background Low-Dye taping is used for excessive pronation at the subtalar joint of the foot. Previous research has focused on the tape's immediate effect on plantar pressure. Its effectiveness following exercise has not been investigated. Peak plantar pressure distribution provides an indirect representation of subtalar joint kinematics. The objectives of the study were 1 To determine the effects of Low-Dye taping on peak plantar pressure immediately post-application. 2 To determine whether any initial effects are maintained following exercise. Methods 12 asymptomatic subjects participated; each being screened for excessive pronation (navicular drop > 10 mm. Plantar pressure data was recorded, using the F-scan, at four intervals during the testing session: un-taped, baseline-taped, post-exercise session 1, and post-exercise session 2. Each exercise session consisted of a 10-minute walk at a normal pace. The foot was divided into 6 regions during data analysis. Repeated-measures analysis of variance (ANOVA was used to assess regional pressure variations across the four testing conditions. Results Reduced lateral forefoot peak plantar pressure was the only significant difference immediately post tape application (p = 0.039. This effect was lost after 10 minutes of exercise (p = 0.036. Each exercise session resulted in significantly higher medial forefoot peak pressure compared to un-taped; (p = 0.015 and (p = 0.014 respectively, and baseline-taped; (p = 0.036 and (p = 0.015 respectively. Medial and lateral rearfoot values had also increased after the second session (p = 0.004, following their non-significant reduction at baseline-taped. A trend towards a medial-to-lateral shift in pressure present in the midfoot immediately following tape application was still present after 20 minutes of exercise. Conclusion Low-Dye tape's initial effect of reduced lateral forefoot peak plantar pressure was lost after a 10-minute walk. However, the tape

  15. The effect of tape casting operational parameters on the quality of adjacently graded ceramic film

    Bulatova, Regina; Gudik-Sørensen, Mads; Della Negra, Michela;

    2016-01-01

    For small length tape casting of ceramic slurries varying green film thickness is often a problem. To optimise this, the following parameters were investigated: single blade, double blade, using a pump system and a modelled speed change mode have been analysed. Advantages and limitations of every...... method are described here. The tape casting experiments were built to be generic in order to allow the control of various processing conditions. From these results, the single-blade technique was chosen for a study of side-by-side tape casting. The influence of the geometric parameters of partitioning...

  16. Electromechanical behaviour of REBCO tape lap splices under transverse compressive loading

    Grether, A; Ballarino, A.; Bottura, L.

    2016-01-01

    We have studied the influence of transverse compressive stress on the resistance and critical current (Ic) of soldered REBCO tape lap splices. Internal contact resistances dominate the overall REBCO lap splice resistances. Application of transverse compressive stress up to 250 MPa during the resistance measurements does not alter the resistance and Ic of the soldered REBCO splices that were studied. The resistance of unsoldered REBCO tape lap splices depends strongly on the contact pressure. At a transverse compressive stress of 100 MPa to which Roebel cables are typically exposed in high field magnets, the crossover splice contact resistance is comparable to the internal tape resistances.

  17. Numerical prediction of stability of high Tc superconducting tape in transient magnetic fields

    The stability of high Tc superconducting tape against AC loss was evaluated numerically considering the change of transport current distribution when external transient magnetic fields were applied perpendicular to the tape. The process of the temperature increase and the recovery to the temperature of coolant was predicted, and it was confirmed that the increase of temperature is mainly dependent of the change rate of external fields. The numerical results indicate high Tc superconducting tape is exceedingly stable and the quench cannot occur even in the intense fields conditions. (orig.)

  18. Preparation of (Tl,Pb)-1223 multilayer tapes by use of an electrophoretic technique

    We prepared multilayer taped from (Tl,Pb)-1223 thick films electrophoretically deposited on silver tapes. A multilayer tape was rolled in the transverse direction, pressed and sintered. The transport current was 33 A at 77 K and 80 A at 30 K, corresponding to a critical current density of about 104 A cm-2 at 77 K. In a magnetic field of 0.1 T the critical current density decreased by a factor of 20 and remained nearly constant at higher fields. The critical current density derived from magnetization data was 7x105 A cm-2 at 10 K and 8x104 A cm-2 at 77 K. (author)

  19. Electromechanical behaviour of REBCO tape lap splices under transverse compressive loading

    Grether, A.; Scheuerlein, C.; Ballarino, A.; Bottura, L.

    2016-07-01

    We have studied the influence of transverse compressive stress on the resistance and critical current (I c ) of soldered REBCO tape lap splices. Internal contact resistances dominate the overall REBCO lap splice resistances. Application of transverse compressive stress up to 250 MPa during the resistance measurements does not alter the resistance and I c of the soldered REBCO splices that were studied. The resistance of unsoldered REBCO tape lap splices depends strongly on the contact pressure. At a transverse compressive stress of 100 MPa, to which Roebel cables are typically exposed in high field magnets, the crossover splice contact resistance is comparable to the internal tape resistances.

  20. Preparation of (Bi, Pb)-2223/Ag tapes by high temperature sintering and post-annealing process

    Hua, L.; Grivel, Jean-Claude; Andersen, L.G.; Tschentscher, T.; Wang, W.G.; Hansen, J.B.

    A novel heat treatment process was developed to fabricate (Bi, Pb)-2223/Ag tapes with high critical current density (J(c)). The process can be divided into two parts: reformation and post-annealing. Tapes were first heated to the maximum temperature (830-860 degreesC) followed by slow cooling...... (reformation). Then, tape, were annealed between 760 and 820 degreesC (post-annealing). Reformation is expected to produce a large amount of liquid phase which may heat microcracks, decrease porosity, and improve grain growth. However, since the sintering temperature is beyond the Bi-2223 single-phase region...

  1. Acronym-Meaning Extraction from Corpora Using Multi-Tape Weighted Finite-State Machines

    Kempe, André

    2006-01-01

    The automatic extraction of acronyms and their meaning from corpora is an important sub-task of text mining. It can be seen as a special case of string alignment, where a text chunk is aligned with an acronym. Alternative alignments have different cost, and ideally the least costly one should give the correct meaning of the acronym. We show how this approach can be implemented by means of a 3-tape weighted finite-state machine (3-WFSM) which reads a text chunk on tape 1 and an acronym on tape...

  2. Computational Chemistry of Adhesive Bonds

    Phillips, Donald H.

    1999-01-01

    This investigation is intended to determine the electrical mechanical, and chemical properties of adhesive bonds at the molecular level. The initial determinations will be followed by investigations of the effects of environmental effects on the chemistry and properties of the bond layer.

  3. Effect of Kinesiology Taping on Breast Cancer-Related Lymphedema: A Randomized Single-Blind Controlled Pilot Study

    Smykla, A.; Walewicz, K.; Trybulski, R.; Halski, T.; Kucharzewski, M.; Kucio, C.; W. Mikusek; Klakla, K.; J. Taradaj

    2013-01-01

    The aim of the study was to assess the efficacy of Kinesiology Taping (KT) for treating breast cancer-related lymphedema. Sixty-five women with unilateral stage II and III lymphedema were randomly grouped into the KT group (K-tapes, n = 20), the Quasi KT group (quasi K-tapes, n = 22), or the MCT group (multilayered compression therapy group, n = 23). Skin care, 45 min pneumatic compression therapy, 1 h manual lymphatic drainage, and application of K-tape/Quasi K-tapes/multilayered short-stret...

  4. Investigate on the application of elliptical drawing dies during the manufacturing process of Bi-2223/Ag superconducting tapes

    Liu, R.; Qu, T.-M.; Zhang, J.-S.; Song, X.-H.; Liang, T.; Liu, Q.; Han, Z.

    2008-09-01

    Elliptical drawing (ED) dies were used during the manufacturing process of Bi-2223/Ag superconducting tapes and their influence on the tapes’ homogeneity and critical currents ( Ic) has been investigated. By comparing two types of HTS tapes drawn by ED dies and a set of reference round dies, we found that the ED process can improve the qualities of the rolled tapes, such as improving the homogeneity of both the center and the peripheral filaments of the tapes, reducing the micro-cracks caused by the rolling process. Thus, the ED process can increase the Ic and engineering critical current density ( Je) values of HTS tapes.

  5. Adhesion of biocompatible and biodegradable micropatterned surfaces

    Kaiser, J.S.; Kamperman, M.M.G.; Souza, E.J.; Schick, B.; Arzt, E.

    2011-01-01

    We studied the effects of pillar dimensions and stiffness of biocompatible and biodegradable micropatterned surfaces on adhesion on different compliant substrates. The micropatterned adhesives were based on biocompatible polydimethylsiloxane (PDMS) and biodegradable poly(lactic-co-glycolic) acid (PL

  6. COMPETITIVE STRATEGY OF A MARKET LEADER; CASE OF UD. PRIMADONA’S PROL TAPE JEMBER - EAST JAVA

    Adetiya Prananda Putra

    2015-09-01

    Full Text Available The purpose of this study was to formulate a competitive strategy to maintain the existence of Prol Tape Primadona. The study used a case study approach with UD. Primadona as the research object. The data were analyzed by using a value chain approach to determine the internal and external conditions that influence Prol Tape Primadona and using analysis of IFE, EFE, CPM, IE, SWOT, and QSPM to develop competitive strategies for Prol Tape Primadona. The results show that the strategies that can be recommended to UD. Primadona are as follows: 1 increasing production capacity, 2 creating website/blog to promote Prol Tape, 3 adding the variants of Prol Tape, 4 stricting quality control to maintain strong brand equity, and 5 establishing coordination with the district government of Jember to make Prol Tape as a superior product.Keywords: competitive strategy, Prol Tape Primadona, UD. Primadona, QSPM, SWOT

  7. Film adhesion in amorphous silicon solar cells

    A R M Yusoff; M N Syahrul; K Henkel

    2007-08-01

    A major issue encountered during fabrication of triple junction -Si solar cells on polyimide substrates is the adhesion of the solar cell thin films to the substrates. Here, we present our study of film adhesion in amorphous silicon solar cells made on different polyimide substrates (Kapton VN, Upilex-S and Gouldflex), and the effect of tie coats on film adhesion.

  8. Nonwoven glass fiber mat reinforces polyurethane adhesive

    Roseland, L. M.

    1967-01-01

    Nonwoven glass fiber mat reinforces the adhesive properties of a polyurethane adhesive that fastens hardware to exterior surfaces of aluminum tanks. The mat is embedded in the uncured adhesive. It ensures good control of the bond line and increases the peel strength.

  9. Tape-wound toroidal (TF) magnet for ZEPHYR (Intermediate Report)

    The report comprises three sections. Section A presents the essential features of the present design of a tape-wound magnet with respect to the magnetic, thermal and radiological loads resulting from the physical assumptions for the ZEPHYR experiment. The conceptual requirements for the liquid-nitrogen cooling of the magnet are given and concepts under discussion are presented. To allow a first pronouncement on the mechanical load capacity of critical magnet components, the results available from calculations and experiments relating to the conductor and insulation materials are interpreted. As investigation of the material properties must play an important role in consolidating the magnet concept, special sections of the report are devoted to this subject. Section B deals theoretically with the conductor material problem, reviews the available experimental results, both with respect to material properties and technical production, and takes a look ahead at future activities. The insulation material is treated on similar lines in Section C. (orig.) 891 HT/orig. 892 HIS

  10. Measure Guideline: Guidance on Taped Insulating Sheathing Drainage Planes

    Grin, A.; Lstiburek, J.

    2014-09-01

    This guide provides information and recommendations to the following groups: insulation contractors; general contractors; builders; home remodelers; mechanical contractors; and homeowners, as a guide to the work that needs to be done. The order of work completed during home construction and retrofit improvements is important. Health and safety issues must be addressed first and are more important than durability issues. And durability issues are more important than saving energy. Not all techniques can apply to all houses. Special conditions will require special action. Some builders or homeowners will wish to do more than the important but basic retrofit strategies outlined by this guide. The following are best practice and product recommendations from the interviewed contractors and homebuilders who collectively have a vast amount of experience. Three significant items were discussed with the group which are required to make taped insulating sheathing a simple, long term, and durable drainage plane: 1. Horizontal joints should be limited or eliminated wherever possible; 2. Where a horizontal joint exists use superior materials; 3. Frequent installation inspection and regular trade training are required to maintain proper installation. Section 5 of this measure guideline contains the detailed construction procedure for the three recommended methods to effectively seal the joints in exterior insulating sheathing to create a simple, long term, and durable drainage plane.

  11. A taping method for external transmitter attachment on aquatic snakes

    Wylie, G.D.; Smith, J.J.; Amarello, M.; Casazza, M.L.

    2011-01-01

    Radio telemetry is extremely useful for studying habitat use and movements of free ranging snakes. Surgically implanting radio transmitters into the body cavity of snakes is standard practice in most studies (e.g., Reinert and Cundall 1982; Weatherhead and Blouin-Demers 2004), but this implanting method has its drawbacks. Surgery itself is risky for individual snakes because of the potential for infection or incomplete healing of the incision site. Also, transmitters that are small enough to be carried by small or slender snakes have a relatively short battery life and need to be removed or replaced often, thus requiring frequent surgeries. In rare or endangered snake species, the risk of using invasive implantation surgery may not be merited. External attachment methods are relatively non-invasive and allow removal and replacement of radio transmitters on smaller snakes. The Giant Gartersnake (Thamnophis gigas) is a semi-aquatic snake endemic to wetlands of the Central Valley of California, USA, and is federally and state listed as threatened (U.S. Fish and Wildlife Service 1999). Telemetry studies of the habitat use and movements of this species typically used surgically implanted radio transmitters, but this method is limited to larger snakes, primarily females, because of size requirements for surgery (> 250 g). To overcome difficulties and biases associated with radio telemetry of T. gigas, we developed and evaluated several alternative techniques to attach external radio transmitters using tape.

  12. Transobturator tape for female stress incontinence: A day surgery case

    Al Taweel Waleed

    2009-01-01

    Full Text Available Aim: To evaluate the effectiveness of transobturator vaginal tape (TOT in the treatment of female stress urinary incontinence (SUI and to analyze functional results and quality of life after12 months follow up. Materials and Methods : All women with SUI who underwent TOT procedure from outside to inside under general or regional anesthesia from December 2004 to January 2007 were included in the study. All must have had a minimal follow up of one year. The patients were prospectively evaluated with history including pads use/day, physical examination - pelvic examination, urinalysis, urogenital distress inventory (UDI-6, and analog global satisfaction scale - and urodynamic studies - filling cystometry, pressure-flow studies, and Valsalva leak point pressure. Results: Sixty two consecutive patients who fulfilled the inclusion criteria underwent TOT procedure by one surgeon. The mean age was 52 ± 9 years (range, 34-70 years and minimal follow up was one year (12-24 months. The mean operative time was 17 ± 4 minutes (15-31 with average amount of bleeding 62 ± 22 cc. We found objectively 89% cure or improvement rate after one year. Conclusion: The out-in transobturator approach is a very effective treatment of SUI with low morbidity and high success rate. However, longer follow up in larger populations should assess the long-term reliability of this attractive procedure.

  13. Convergent evolution as natural experiment: the tape of life reconsidered.

    Powell, Russell; Mariscal, Carlos

    2015-12-01

    Stephen Jay Gould argued that replaying the 'tape of life' would result in radically different evolutionary outcomes. Recently, biologists and philosophers of science have paid increasing attention to the theoretical importance of convergent evolution-the independent origination of similar biological forms and functions-which many interpret as evidence against Gould's thesis. In this paper, we examine the evidentiary relevance of convergent evolution for the radical contingency debate. We show that under the right conditions, episodes of convergent evolution can constitute valid natural experiments that support inferences regarding the deep counterfactual stability of macroevolutionary outcomes. However, we argue that proponents of convergence have problematically lumped causally heterogeneous phenomena into a single evidentiary basket, in effect treating all convergent events as if they are of equivalent theoretical import. As a result, the 'critique from convergent evolution' fails to engage with key claims of the radical contingency thesis. To remedy this, we develop ways to break down the heterogeneous set of convergent events based on the nature of the generalizations they support. Adopting this more nuanced approach to convergent evolution allows us to differentiate iterated evolutionary outcomes that are probably common among alternative evolutionary histories and subject to law-like generalizations, from those that do little to undermine and may even support, the Gouldian view of life. PMID:26640647

  14. Superconducting Bi-2223/Ag tapes for power applications

    Full text: Power applications of high-temperature superconductors (HTS) require the conductor to meet the following engineering specifications: (i) Jc ≥ 104 A cm-2 in the presence of a self-generated magnetic field ranging from 200 mT for power transmission cables and transformers to several tesla for superconducting magnets for mineral separation; (ii) low ac power losses, e.g. -1 for 2 kA power cables; and (iii) a strain tolerance or irreversible strain limit εIrr ≥ 0.2%. We report measurements of the electrical transport properties of Bi-2223/Ag composite conductors produced as part of the long-length product development by the Metal Manufactures Ltd - University of Wollongong - CSIRO consortium. The powder-in-tube (PIT) process was used to manufacture conductors 200 m to 1 km in length with various filament configurations including monofilament and multifilament tapes with untwisted and twisted filaments and round wires. The transport critical current Ic was measured as a function of temperature (T 4 - 80 K) and magnetic field (B = 0-9 T) for different field orientations. Self-field transport ac losses were determined at 77 K and 60 Hz as a function of ac current amplitude (0 - 100 A rms). The strain performance was evaluated at 77 K for applied bend strains from zero to 1.5 %. Scanning Hall probe magnetometry was used to image the flow of dc transport current and its distribution with increasing current to about 2Ic

  15. The Kinesio Taping Method for Myofascial Pain Control.

    Wu, Wei-Ting; Hong, Chang-Zern; Chou, Li-Wei

    2015-01-01

    Many people continue suffering from myofascial pain syndrome (MPS) defined as a regional pain syndrome characterized by muscle pain caused by myofascial trigger points (MTrPs) clinically. Muscle spasm and block of blood circulation can be noticed in the taut bands. In the MTrP region, nociceptors can be sensitized by the peripheral inflammatory factors and contracture of fascia can also be induced. Traditional treatments of MPS include stretching therapy, thermal treatment, electrical stimulation, massage, manipulation, trigger points injection, acupuncture, and medicine. However, the pain syndrome may not be relieved even under multiple therapies. Recently, the Kinesio Taping (KT) method is popularly used in sports injuries, postoperative complications, and various pain problems, but little research is focused on MPS with KT method. In this paper, we review the research studies on the application to KT in treating MPS and other related issues. It appears that the KT application can elevate the subcutaneous space and then increase the blood circulation and lymph fluid drainage to reduce the chemical factors around the MTrP region. Therefore, it is suggested that KT method can be used as a regular treatment or added to the previous treatment for myofascial pain. PMID:26185522

  16. The Kinesio Taping Method for Myofascial Pain Control

    Wei-Ting Wu

    2015-01-01

    Full Text Available Many people continue suffering from myofascial pain syndrome (MPS defined as a regional pain syndrome characterized by muscle pain caused by myofascial trigger points (MTrPs clinically. Muscle spasm and block of blood circulation can be noticed in the taut bands. In the MTrP region, nociceptors can be sensitized by the peripheral inflammatory factors and contracture of fascia can also be induced. Traditional treatments of MPS include stretching therapy, thermal treatment, electrical stimulation, massage, manipulation, trigger points injection, acupuncture, and medicine. However, the pain syndrome may not be relieved even under multiple therapies. Recently, the Kinesio Taping (KT method is popularly used in sports injuries, postoperative complications, and various pain problems, but little research is focused on MPS with KT method. In this paper, we review the research studies on the application to KT in treating MPS and other related issues. It appears that the KT application can elevate the subcutaneous space and then increase the blood circulation and lymph fluid drainage to reduce the chemical factors around the MTrP region. Therefore, it is suggested that KT method can be used as a regular treatment or added to the previous treatment for myofascial pain.

  17. Homogeneous current distribution experiment in a multi-laminated HTS tape conductor for a double-pancake coil of SMES

    Atomura, N., E-mail: a.naoki@ecei.tohoku.ac.jp [Electrical Engineering Department, Graduate School, Tohoku University, 6-6-05 Aoba Aramaki, Aoba-ku, Sendai 980-8579 (Japan); Takahashi, T.; Chiba, Y.; Tsuda, M.; Hamajima, T. [Electrical Engineering Department, Graduate School, Tohoku University, 6-6-05 Aoba Aramaki, Aoba-ku, Sendai 980-8579 (Japan); Shikimachi, K.; Hirano, N.; Nagaya, S. [Chubu Electric Power Co., Inc., 1, Higashi-shincho, Higashi-ku, Nagoya 461-8680 (Japan)

    2011-11-15

    We propose a new method to control the current distribution in the laminated conductor. It's using transposition at the innermost layer of a double-pancake coil and adjusting the gaps between the laminated tapes. We design and examine a homogeneous current distribution coil wound with the multi-laminated (four times) HTS tape conductor. The multi-laminated conductor of a double-pancake coil can make the homogeneous current distribution. A multi-laminated HTS tape conductor wound into double-pancake coils has recently been used for large SMES. If the HTS tapes are simply laminated to form the conductor, the current distribution in the laminated tape conductor of the coil is not homogeneous because of the differences among all the tape inductances. Transposition of these tapes at the innermost or outermost layer of the coil is effective for homogeneous current distribution. However, this method would requires the same number of single-pancake coils as that of the HTS tape conductor, and hence the number of HTS tape conductors is restricted. In this paper, we propose a new method to control the current distribution in the laminated conductor using transposition at the innermost layer of a double-pancake coil and adjusting the gaps between the laminated tapes. We analyze the current distributions for multi-laminated HTS tape conductors for a double-pancake coil, and show the homogeneous current distribution of the laminated tape conductor. In order to verify the theory, we designed homogeneous current distribution coil wound with the multi-laminated (four times) HTS tape conductors by transposing them at the innermost layer and by adjusting the additional thickness 0.075 mm between the parallel conductors. We obtained the homogeneous current distribution in the tape conductor. The experimental data were in good agreement with the theory.

  18. Highly adhesive metal plating on Zylon fiber via iodine pretreatment

    Fatema, Ummul Khair [Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567 (Japan); Gotoh, Yasuo, E-mail: ygotohy@shinshu-u.ac.jp [Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567 (Japan)

    2011-11-01

    Highly adhesive metal plating was performed on poly(p-phenylene-2,6-benzobisoxazole) fiber named Zylon via iodine pretreatment followed by electroless plating. First, iodine components were selectively doped into the inner part of the fiber near the surface through iodine vapor exposure. The doped iodine was converted to palladium iodide particles by treating with palladium chloride solution. After the reduction of the iodide to metal palladium particles, electroless copper plating was conducted on the fiber. A uniform copper layer was deposited on the fiber surface and exhibited high durability in durability tests such as ultrasonic exposure, tape peeling-off, and corrosion in NaCl solution. This durability was attributed to the palladium particles formed at the fiber surface that served as an anchor for the plated layer as well as an electroless plating catalyst. The plated fibers also possessed electrical conductivity. Although the tensile strength of the Zylon fiber decreased from 5.8 to 4.9 GPa after undergoing the pretreatment and plating processes, the light shielding effect improved the light resistance of the plated fibers in terms of tensile properties. After 18 days of xenon lamp exposure, the plated fibers retained 74% of its initial strength, whereas that of untreated fibers decreased to 43%.

  19. Highly adhesive metal plating on Zylon fiber via iodine pretreatment

    Highly adhesive metal plating was performed on poly(p-phenylene-2,6-benzobisoxazole) fiber named Zylon via iodine pretreatment followed by electroless plating. First, iodine components were selectively doped into the inner part of the fiber near the surface through iodine vapor exposure. The doped iodine was converted to palladium iodide particles by treating with palladium chloride solution. After the reduction of the iodide to metal palladium particles, electroless copper plating was conducted on the fiber. A uniform copper layer was deposited on the fiber surface and exhibited high durability in durability tests such as ultrasonic exposure, tape peeling-off, and corrosion in NaCl solution. This durability was attributed to the palladium particles formed at the fiber surface that served as an anchor for the plated layer as well as an electroless plating catalyst. The plated fibers also possessed electrical conductivity. Although the tensile strength of the Zylon fiber decreased from 5.8 to 4.9 GPa after undergoing the pretreatment and plating processes, the light shielding effect improved the light resistance of the plated fibers in terms of tensile properties. After 18 days of xenon lamp exposure, the plated fibers retained 74% of its initial strength, whereas that of untreated fibers decreased to 43%.

  20. A beta test of linear tape-open (LTO) ultrium data storage technology

    Cholia, Shreyas; Meyer, Nancy

    2001-10-31

    NERSC is participating in several HPSS (High Performance Storage System) research and development projects as part of the Probe testbed. One of these projects involved beta testing of the IBM 3584 UltraScalable Tape Library, which uses the new ultra-high-density Linear Tape-Open (LTO) Ultrium tape drives. Ultrium tape cartridges have a capacity of up to 300 GB of compressed data, greatly reducing the number of cartridges needed to store massive scientific datasets. NERSC's preliminary performance testing indicates that LTO Ultrium technology, with compatible products and media available from several vendors, may be a viable alternative for computer centers seeking higher-density archival storage media with a small footprint and relatively low cost per drive.

  1. A trial manufacture of cassette tape to standard MT data processing system controlled by microcomputer

    The data processing system controlled by a microcomputer has been developed for the purpose of data handling of cassette magnetic tape used as a recorder of pulse hight analyzer in market. This system has the following features; (1) This data acquisition system consists of a portable pulse hight analyzer and an audio-cassette magnetic tape recorder, which is low in price, light in weight and portable. (2) As the data processing part is composed by a microcomputer, one can easily deal with a different type of data code by a slight modification of a process program. (3) The processed output can be taken out to a standard 9 track 1600 BPI PE mode magnetic tape by a magnetic tape handler, and be available for a generally used bach-process computer. This report describes the hardware configuration and the process program in detail. Moreover, the operational manual, a sample operation and program lists are described in the appendix. (author)

  2. INPE LANDSAT-D thematic mapper computer compatible tape format specification

    Parada, N. D. J. (Principal Investigator); Desouza, R. C. M.

    1982-01-01

    The format of the computer compatible tapes (CCT) which contain Thematic Mapper (TM) imagery data acquired from the LANDSAT D and D Prime satellites by the INSTITUTO DE PERSQUISAS ESPACIALS (CNPq-INPE/BRAZIL) is defined.

  3. Monofilamentary Ag/Bi:2212 tapes - effects of silver powder addition

    The Bi-Sr-Ca-Cu-O system has been one of the most studied superconducting ceramic materials for industry applications. The most of the studies with this aim are on silver/ceramic composites, due to the benefits and great compatibility of this metal with the oxide. Tapes made by the powder in tube (PIT) method have been successfully tested in pilot power plants in many countries but in Brazil. In this paper, 5, 10, and 20-wt% silver powders are introduced to compose the core of the tape along with the Bi:2212 ceramic powder. The results of electrical experiments are compared with those made with no silver addition Ag tapes. The best current density, at 60 K and no applied magnetic field, was found for the 10-wt% silver proportion, doubling the value obtained for the tape with no silver in the core. (orig.)

  4. Are marketed topical metronidazole creams bioequivalent? Evaluation by in vivo microdialysis sampling and tape stripping methodology

    Garcia Ortiz, Patricia Elodia; Hansen, S H; Shah, Surendra P.;

    2011-01-01

    To evaluate the bioequivalence of 3 marketed topical metronidazole formulations by simultaneous dermal microdialysis and stratum corneum sampling by the tape stripping methodology, and to compare the techniques as tools for the determination of bioequivalence....

  5. Role of processing in improving the critical current of Ag/BPSCCO tapes

    Silver-clad tapes of high Tc Bi-Pb-Sr-Ca-Cu-O superconductors have been fabricated through the powder-in-tube method. The critical current density, Jc of a thick tape was 534 A cm-2 (77 K. OT). Subsequent rolling and sintering of the tapes led to a gradual decrease in Jc instead of the expected increase. This was caused by the microcracks developed in the core material by a rather drastic reduction during the rolling of the tapes. A modified and well controlled technique, on the other hand, resulted in much improved Jc values. Repeated rolling and sintering resulted in a good grain alignment and no microcracks were observed. In the present studies, maximum Jc of 1846 A cm-2 (77 K OT) and 2.43x104 A cm-2(4.2 K OT) have been obtained. Optimization of the processing and sintering parameters are expected to lead to still higher Jc values

  6. Uniform trapped fields produced by stacks of HTS coated conductor tape

    Mitchell-Williams, T. B.; Baskys, A.; Hopkins, S. C.; Kalitka, V.; Molodyk, A.; Glowacki, B. A.; Patel, A.

    2016-08-01

    The trapped magnetic field profile of stacks of GdBa2Cu3O7‑x superconducting tape was investigated. Angled stacks of superconducting tape were magnetized and found to produce very uniform trapped field profiles. The angled stacks were made of 12 mm × 24 mm solder coated tape pieces and were bonded together following a brief consolidation heat treatment. Layering multiple stacks together and adding a ferromagnetic plate beneath the samples were both found to enhance the magnitude and uniformity of the trapped field profiles. Stationary and time-dependent critical state finite element models were also developed to complement the experimental results and investigate the magnetization process. The size and shapes possible with the angled stacks make them attractive for applications requiring uniform magnetic fields over larger areas than can be achieved with existing bulk rings or tape annuli.

  7. 3D Shape and Pose Estimaion of Deformable Tapes from Multiple Views

    Kubota, Hitoshi; Ono, Masakazu; Takeshi, Masami; Saito, Hideo

    In this paper, we propose a method to estimate 3D shape of deformable plastic tapes from multiple camera images. In this method, the tape is modeled as serial connection of multiple rectangular plates, where the size of each plate is previously known and node angles of between plates represent the shape of the object. The node angles of the object are estimated by 2D silhouette shapes taken in the multiple images. The estimation is performed by minimizing the difference of the silhouette shapes between the input images and synthesized images of the model shape. For demonstrating the proposed method, 3D shape of a tape is estimated with two camera images. The accuracy of the estimation is sufficient for making the assembling robot in our plant to handle the tape. Computation time is also sufficiently short for applying the proposed algorithm in the assembling plant.

  8. Bending deformation and its influence on critical current in Bi2223 composite superconducting tapes

    Hojo, M.; Matsuoka, T.; Nakaoka, S.; Tanaka, M.; Ochiai, S.; Sugano, M.; Osamura, K

    2003-10-15

    The strain dependence of the critical current, I{sub c}, of Ag and Ag-alloy sheathed Bi2223 composite superconducting tapes has been studied under bending deformation. The tensile stress-strain behavior of the composite tapes was first analyzed to determine several unknown parameters such as Young's modulus, yield strength and the thermal expansion coefficients of each component. In this analysis, these were inversely decided to meet the global tensile stress-strain behavior including intermediate unloading and reloading processes and the thermal expansion of the composite tapes. Thus evaluated values were used for the bending analysis in which the movement of the neutral axis was taken into account. Based on the analyzed strain distribution, the relative decrease of the critical current with the increase of the Bi2223 tape curvature was calculated from the volume fraction of the broken filaments. The calculated value agreed well with the experimental results.

  9. Study on Fabrication of Ni-5 at.%W Tapes for Coated Conductors from Cylinder Ingots

    Ma, L.; Suo, H. L.; Yue, Zhao;

    2015-01-01

    observed that the fraction of cube texture within 10° from the ideal {001}〈100〉 orientation was ~98% and the fraction of LAGBs was ~90%. The as-obtained tapes have a strong cube texture also very close to the edge of the tape and they would therefore increase the fraction of applicable material while......, during heavy cold rolling, be characterized by a lower concentration of stress along the edges of the ingot. It can reduce fabrication costs and increase process efficiency. The fraction of cube texture on the surface of the finally recrystallized tapes was investigated using the EBSD technique. It was...... simplifying the heavy rolling process. Accordingly, it suggests that this fabrication method is a good choice to most small scale research laboratories for achieving long length Ni5W tapes for coated conductors with an easy way and a higher fraction of applicable material....

  10. Mechanical and transport properties of IBAD/EDDC-SmBCO coated conductor tapes during fatigue loading

    Shin, Hyung-Seop; Dedicatoria, Marlon J.

    2011-06-01

    In electrical devices like superconducting motor, generator and SMES, HTS coated conductor (CC) tapes will be subjected to alternating stress or strain during manufacturing and operation. The repeated loading will affect the mechanical integrity and eventually the electrical transport property of CC tapes. Therefore in such applications, electro-mechanical property of CC tapes should be evaluated. In this study, the endurance of an IBAD/EDDC-SmBCO CC tape under high-cycle fatigue loading has been evaluated. Applied maximum stress and fatigue life ( S-N) relation was obtained at 77 K. The mechanical properties and the critical current, I c, of the sample under fatigue loading were investigated at 77 K. Considering the practical operating environment, the effect of the stress ratio R, on the degradation behavior of I c under fatigue loading was also examined.

  11. Fabrication of Polyimide-Matrix/Carbon and Boron-Fiber Tape

    Belvin, Harry L.; Cano, Roberto J.; Treasure, Monte; Shahood, Thomas W.

    2007-01-01

    The term HYCARB denotes a hybrid composite of polyimide matrices reinforced with carbon and boron fibers. HYCARB and an improved process for fabricating dry HYCARB tapes have been invented in a continuing effort to develop lightweight, strong composite materials for aerospace vehicles. Like other composite tapes in this line of development, HYCARB tapes are intended to be used to build up laminated structures having possibly complex shapes by means of automated tow placement (ATP) - a process in which a computer-controlled multiaxis machine lays down prepreg tape or tows. The special significance of the present process for making dry HYCARB for ATP is that it contributes to the reduction of the overall cost of manufacturing boron-reinforced composite-material structures while making it possible to realize increased compression strengths. The present process for making HYCARB tapes incorporates a "wet to dry" process developed previously at Langley Research Center. In the "wet to dry" process, a flattened bundle of carbon fiber tows, pulled along a continuous production line between pairs of rollers, is impregnated with a solution of a poly(amide acid) in N-methyl-2-pyrrolidinone (NMP), then most of the NMP is removed by evaporation in hot air. In the present case, the polyamide acid is, more specifically, that of LaRC. IAX (or equivalent) thermoplastic polyimide, and the fibers are, more specifically, Manganite IM7 (or equivalent) polyacrylonitrile- based carbon filaments that have a diameter of 5.2 m and are supplied in 12,000-filament tows. The present process stands in contrast to a prior process in which HYCARB tape was made by pressing boron fibers into the face of a wet carbon-fiber/ poly(amide acid) prepreg tape . that is, a prepreg tape from which the NMP solvent had not been removed. In the present process, one or more layer(s) of side-by-side boron fibers are pressed between dry prepreg tapes that have been prepared by the aforementioned gwet to dry h

  12. Mechanical strength of adhesive-bonding

    In order to meet the prospective application of a GFRP dewar for energy storage system using a large superconducting magnet, the dewar with a complex structure together with a large size are desired to be made. It is difficult to manufacture such a type of the dewars in one united body. These dewars can be manufactured by the adhesive-bonding method. In the present study, the mechanical strength of adhesive-bonding is studied from this point of view. The mechanical strength of the adhesive-bonding has been investigated by the static tensile method and the impact loading method using small test samples. From the static tensile tests, the following results have been obtained. For the sample adhesive-bonded with insertion structure, the mechanical strength of the adhesive-bonding is found to depend on the adhesives used and on the difference of the thermal contraction between the materials which are adhesive-bonded each other. Using a soft adhesive as Araldite 106, the mechanical strength of the adhesive-bonding is small at room temperature, but it remarkably increases at cryogenic temperatures. For a hard adhesive as Araldite 103 and Stycast 2850 FT, it is large at room temperature, and it further increases at cryogenic temperatures. The dewar has to be strong enough not only at cryogenic temperatures but also at room temperature. A soft adhesive is not suitable for constructing the dewar. For the sample adhesive-bonded with screwing structure, the mechanical strength of the adhesive-bonding depends on the shear strength of GFRP itself. The mechanical strength of the adhesive-bonded part increases with the decreasing temperature. Therefore, this screwing method is advantageous for the construction of the dewar. According to the impact loading tests, it is found that the adhesive-bonding of screwing structure is not brittle at cryogenic temperature. This is due to inherent property of GFRP. (J.P.N.)

  13. Improvement of Bi-2223/Ag tape performances through the control of the Pb-rich phases present in the precursors powders

    Chen, X.P.; Grivel, Jean-Claude; Li, M.Y.; Liu, Q.; Han, Z.; Andersen, N.H.; Homeyer, J.

    current depended strongly on the nature of the lead-rich phase. Tapes fabricated using the precursor with the Ca2PbO4 phase (tape T1) had a much lower optimum sintering temperature and a narrower temperature window than tapes fabricated using the precursor with the 3321 phase (tape T2). The critical...

  14. Tape authentication and voice identification: a case study in forensic acoustic phonetics

    Corthals, Paul; Van Borsel, John; Van Lierde, Kristiane

    2010-01-01

    Audio tapes are often used as evidence in courtrooms. This report is about a case of threatening telephone calls. Tape authentication was done by visual and statistical analysis of pitch and loudness contours. Voice identification was done by means of a “voice line-up”, i.e. judging differences and similarities in a series of matched voices (including the defendants’ voice) and the voice on the exhibit recording. Methods for authentication and identification are described in detail.

  15. Thin-walled composite deployable booms with tape-spring hinges

    Mallikarachchi, H.M. Yasitha Chinthaka

    2011-01-01

    Deployable structures made from ultra-thin composite materials can be folded elastically and are able to self-deploy by releasing the stored strain energy. Their lightness, low cost due to smaller number of components, and friction insensitive behaviour are key attractions for space applications. This dissertation presents a design methodology for lightweight composite booms with multiple tape-spring hinges. The whole process of folding and deployment of the tape-spring ...

  16. Prophylactic Ankle Taping and Bracing: A Numbers-Needed-to-Treat and Cost-Benefit Analysis.

    Olmsted, Lauren C.; Vela, Luzita I.; Denegar, Craig R.; Hertel, Jay

    2004-03-01

    OBJECTIVE: Taping and bracing are thought to decrease the incidence of ankle sprains; however, few investigators have addressed the effect of preventive measures on the rate of ankle sprains. Our purpose was to examine the effectiveness of ankle taping and bracing in reducing ankle sprains by applying a numbers-needed-to-treat (NNT) analysis to previously published studies. DATA SOURCES: We searched PubMed, CINAHL, SPORT Discus, and PEDro for original research from 1966 to 2002 with key words ankle taping, ankle sprains, injury incidence, prevention, ankle bracing, ankle prophylaxis, andnumbers needed to treat. We eliminated articles that did not address the effects of ankle taping or bracing on ankle injury rates using an experimental design. DATA SYNTHESIS: The search produced 8 articles, of which 3 permitted calculation of NNT, which addresses the clinical usefulness of an intervention by providing estimates of the number of treatments needed to prevent 1 injury occurrence. In a study of collegiate intramural basketball players, the prevention of 1 ankle sprain required the taping of 26 athletes with a history of ankle sprain and 143 without a prior history. In a military academy intramural basketball program, prevention of 1 sprain required bracing of 18 athletes with a history of ankle sprain and 39 athletes with no history. A study of ankle bracing in competitive soccer players produced an NNT of 5 athletes with a history of previous sprain and 57 without a prior injury. A cost- benefit analysis of ankle taping versus bracing revealed taping to be approximately 3 times more expensive than bracing. CONCLUSIONS/RECOMMENDATIONS: Greater benefit is achieved in applying prophylactic ankle taping or bracing to athletes with a history of ankle sprain, compared with those without previous sprains. The generalizability of these results to other physically active populations is unknown. PMID:15085217

  17. Influence of initial composition and processing parameters on the critical current density of BPSCCO pit tapes

    Studies on bulk and Ag sheathed tapes of BPSCCO superconducting materials have been conducted. The results show that Bi1.8Pb0.4Sr2Ca2.2Cu3Oy prepared through the sol-gel process and vacuum calcined under O2-rich dynamic flow conditions give most favorable results. Importance of AC susceptibility (x')-temperature (T) measurements became evident in evaluating the quality of the tapes

  18. Analysis of laser turbulence utilizing a video tape recorder and digital storage oscilloscope.

    Connor, John Henry

    1982-01-01

    Approved for public release; distribution unlimited The ability to measure and predict atmospheric turbulence affecting laser beam propagation is a major concern when considering military applications. Such a method using a telescope, high resolution television camera, video tape recorder, digital storage oscilloscope, and calculator system has been devised, tested and utilized. A laser beam signal is recorded on video tape for further processing. This signal is displayed...

  19. Website malfunction: a case report highlighting the danger of using electrical insulating tape for buddy strapping

    Devitt, Brian Meldan; Baker, Joseph F.; Fitzgerald, Eilis; McCarthy, Conor

    2010-01-01

    A case of injury to the third web space of the right hand of a rugby player, as a result of buddy strapping with electrical insulating tape of the little and ring finger, is presented. A deep laceration of the web space and distal palmar fascia resulted, necessitating wound exploration and repair. This case highlights the danger of using electrical insulating tape as a means to buddy strap fingers.

  20. Delamination behaviour of GdBCO coated conductor tapes under transverse tension

    Gorospe, A. [Department of Mechanical Design Engineering, Andong National University, Andong 760-749 (Korea, Republic of); Department of Engineering, Aurora State College of Technology, Baler 3200 (Philippines); Nisay, A. [Department of Mechanical Design Engineering, Andong National University, Andong 760-749 (Korea, Republic of); Dizon, J.R. [Department of Mechanical Design Engineering, Andong National University, Andong 760-749 (Korea, Republic of); College of Engineering and Architecture, Bataan Peninsula State University, Balanga 2100 (Philippines); Shin, H.S., E-mail: hsshin@andong.ac.kr [Department of Mechanical Design Engineering, Andong National University, Andong 760-749 (Korea, Republic of)

    2013-11-15

    Highlights: •Installation of a test frame which gives precisely aligned transverse load. •Investigation of I{sub c} degradation behaviour depending on the type of sample delamination. •Inhomogeneity of the CC tapes caused large variation on delamination strength. •SEM and EDS analysis of delamination sites under transverse loading. -- Abstract: The electromechanical property behaviour of 2G coated conductor (CC) tapes fabricated by multi-layer deposition process both in the in-plane and transverse direction should be understood. The CC tapes are used in the fabrication of epoxy resin-impregnated coils. In such case, the Lorentz force due to the high magnetic field applied as well as the thermal stress due to the difference in coefficient of thermal expansion (CTE) among constituent layers during cooling to cryogenic temperature will induce transversely applied load to the surface of CC tapes in coils. Hence, the CC tape should have a good mechanical property in the transverse direction in order to maintain its superior performance under magnetic field. In this study, a test frame which gives precisely aligned transverse load was devised. Using the fixture, the delamination behaviours including the delamination strength of the GdBCO CC tapes under transverse tensile loading were investigated. Large variation on the delamination strength of the CC tapes was recorded and might have resulted from the slit edge effect and the inhomogeneity of the CC tapes. The I{sub c} degradation behaviour under transverse load was related to the location where delamination occurred in the sample.

  1. Immediate and Delayed Effects of Forearm Kinesio Taping on Grip Strength

    Kouhzad Mohammadi, Hosein; Khademi Kalantari, Khosro; Naeimi, Sedighe Sadat; Pouretezad, Mohammad; Shokri, Esmaeil; Tafazoli, Mojdeh; Dastjerdi, Mahboobeh; Kardooni, Leila

    2014-01-01

    Background: Due to the fundamental role of gripping in most upper limb activities, grip strength promotion is a chief goal in the treatment of patients with upper limb musculoskeletal disorders. Kinesio taping is a novel and effective therapeutic technique believed to facilitate muscle contraction through stimulating mechanoreceptors and increasing the sensory feedback around the taped region. Objectives: The present study aimed to identify the best region (flexor, extensor and flexor/extenso...

  2. The Effect of Muscle Facilitation Using Kinesio Taping on Walking and Balance of Stroke Patients

    Kim, Woo-Il; Choi, Yong-Kyu; Lee, Jung-Ho; Park, Young-Han

    2014-01-01

    [Purpose] The aim of this study was to evaluate the changes in function and balance after Kinesio Taping application in stroke patients. [Subjects and Methods] Thirty subjects were randomly divided into an experimental group and control group. The experimental group was applied taping before therapeutic exercise, and the control group received only therapeutic exercise. Functional gait was measured using the straight line walking test, and dynamic balance ability was measured using the Berg B...

  3. The Effects of Taping Prior to PNF Treatment on Lower Extremity Proprioception of Hemiplegic Patients

    Choi, Yong-Kyu; Nam, Chan-Woo; Lee, Jung-Ho; Park, Young-Han

    2013-01-01

    [Purpose] The purpose of this study was to compare the effects of taping on the articular angle of the knee joint and on the functioning of patients with hemiplegia resulting from stroke. [Subjects] The subjects of this study were 30 patients who were diagnosed with hemiplegia due to stroke. The subjects were randomly assigned to either an experimental group which received proprioceptive neuromuscular facilitation combination patterns and kinesio taping were applied, or a control group which ...

  4. Effect of kinesio taping on the isokinetic muscle function in football athletes with a knee injury

    Hong, SoonKwon; Shim, Jemyung; Kim, SungJoong; Namkoong, Seung; Roh, HyoLyun

    2016-01-01

    [Purpose] The purpose of this study was to determine the difference in isokinetic muscle function in football athletes with a knee injury with and without kinesio taping. [Subjects] The subjects for this study were 10 football athletes (males) with a knee injury. [Methods] Measurements were performed by using Cybex dynamometer under uniform motion before and after the application of kinesio tape to the quadriceps and hamstring muscle. Maximal concentric knee extension and flexion at three ang...

  5. The Effects of Kinesio Tape on Isokinetic Muscular Function of Horse Racing Jockeys

    Kim, Hyeyoung; Lee, Byounghee

    2013-01-01

    [Purpose] The purpose of this study was to conduct a scientific analysis of the effectiveness of Kinesio taping at preventing injury and improving horse racing jockey' performance, by studying the effects on isokinetic muscular function of Kinesio taping applied to the knee joint muscle. [Subjects] Eight horse racing jockeys were selected for this study. [Methods] Measurement of isokinetic muscular function of both flexor and extensor muscles was performed at the angular velocities of 60°/sec...

  6. The effects of additional kinesio taping over exercise in the treatment of patellofemoral pain syndrome

    Akbas, Eda; Atay, Ahmet Ozgur; Yuksel, Inci

    2011-01-01

    Objective: The purpose of this prospective, randomized, controlled study was to determine the effects of kinesio taping in the treatment of patients with patellofemoral pain syndrome (PFPS). Methods: Thirty-one women with PFPS (mean age: 44.88 years; range: 17 to 50 years) were randomly assigned to either a kinesio taping (KT) (n=15) or control (n=16) group. Both groups received the same muscle strengthening and soft tissue stretching exercises for six weeks and the KT group additionally ...

  7. Are marketed topical metronidazole creamas bioequivalent ? Evaluation by in vivo microdialysis sampling and tape stripping methodology

    Ortiz, P. Garcia; Hansen, Steen Honore'; Shah, V. P.;

    2011-01-01

    To evaluate the bioequivalence of 3 marketed topical metronidazole formulations by simultaneous dermal microdialysis and stratum corneum sampling by the tape stripping methodology, and to compare the techniques as tools for the determination of bioequivalence.......To evaluate the bioequivalence of 3 marketed topical metronidazole formulations by simultaneous dermal microdialysis and stratum corneum sampling by the tape stripping methodology, and to compare the techniques as tools for the determination of bioequivalence....

  8. One-step Tape Casting of Composites via Slurry on Fiber

    deGroh, Henry C., III

    2001-01-01

    A process by which metal matrix composites can be made was presented. The process involves putting a powder slurry on fibers to make a precursor green tape. These green tapes are cut, stacked and hot pressed to form the fully dense composite. A computer program was presented which enables complete quantification and control of the process. Once some easily obtained properties of the slurry and its behavior are determined (such as the shrinkage from the wet to green state, and the density of the green tape) modification of the fiber spacing and blade height give the maker precise control of fiber volume fraction, and fiber architecture in the composite. The process was shown to be accurate and flexible through the production of a wide variety of volume fraction fiber composites made from a wide variety of fibers and powders. The most time consuming step of the tape casting process (other than hot pressing) was winding the fiber on the drum. The tape casting techniques developed resulted in high quality metal matrix composites, with ultimate tensile strength in the range of 215 ksi (1477 MPa), a strain at failure of 1.15 percent, and in fatigue at room temperature 0 to 120 ksi, n = 0.3 Hz, a 4-ply Ti-24Al-11Nb/SCS-6, 32 vol% fiber tape cast composite lasted 202,205 cycles with a maximum strain on the 100th cycle of 0.43 percent.

  9. Modelling and measurement of ac loss in BSCCO/Ag-tape windings

    High-temperature superconducting (HTS) transformers promise decreased weight and volume and higher efficiency. A 1 MVA HTS railway transformer was built and tested at Siemens AG. This paper deals with the prediction of ac loss in the BSCCO/Ag-tape windings. In a railway transformer the tape carries ac current in alternating field, the temperature differs from 77 K, tapes are stacked or cabled and overcurrents and higher harmonics occur. In ac-loss literature these issues are treated separately, if at all. We have developed a model that predicts the ac loss in sets of BSCCO/Ag-tape coils, and deals with the above-mentioned issues. The effect of higher harmonics on the loss in HTS tapes is considered for the first time. The paper gives a complete overview of the model equations and required input parameters. The model is validated over a wide range of the input parameters, using the measured critical current and ac loss of single tapes, single coils and sets of coils in the 1 MVA transformer. An accuracy of around 25% is achieved in all relevant cases. Presently the model is developed further, in order to describe other HTS materials and other types of applications

  10. Progress in Jc and magnetic field performance of Bi-2223/Ag composite tapes

    Full text: The application of high-temperature superconductors to electric power systems is actively pursued by several commercial teams around the world. A promising candidate is the Bi-2223/Ag composite superconductor. For large scale commercial applications the conductor must meet certain engineering specifications including high current capacity in the presence of a self-generated magnetic field ranging from a few hundred mT in transmission cables to 1-2 T in transformers and current limiters, and to much higher fields in the case of superconducting coils for energy storage and magnets. In the last two years, a commercial consortium consisting of Metal Manufactures Ltd, University of Wollongong and CSIRO has focused on the development of Bi-2223/Ag composite tape suitable for use in electric power applications. The powder-in-tube process is used to produce conventional single filament and multifilament tapes and twisted conductors. An appropriate measure of 'process capability' is routine running of the process and evaluation of tape performance. In this paper we report on the electrical properties of Bi-2223/Ag composite tapes produced as part of the long-length product development. The transport critical current density of tapes is measured in magnetic fields up to 9 T (H parallel and H perpendicular tape-plane) and as a function of temperature (4 - 80 K). Transport ac losses are determined at 77 K and 60 Hz, and the bend strain performance is determined at 77 K for strains up to 1.5 %

  11. Modelling and measurement of ac loss in BSCCO/Ag-tape windings

    Oomen, M. P.; Nanke, R.; Leghissa, M.

    2003-03-01

    High-temperature superconducting (HTS) transformers promise decreased weight and volume and higher efficiency. A 1 MVA HTS railway transformer was built and tested at Siemens AG. This paper deals with the prediction of ac loss in the BSCCO/Ag-tape windings. In a railway transformer the tape carries ac current in alternating field, the temperature differs from 77 K, tapes are stacked or cabled and overcurrents and higher harmonics occur. In ac-loss literature these issues are treated separately, if at all. We have developed a model that predicts the ac loss in sets of BSCCO/Ag-tape coils, and deals with the above-mentioned issues. The effect of higher harmonics on the loss in HTS tapes is considered for the first time. The paper gives a complete overview of the model equations and required input parameters. The model is validated over a wide range of the input parameters, using the measured critical current and ac loss of single tapes, single coils and sets of coils in the 1 MVA transformer. An accuracy of around 25% is achieved in all relevant cases. Presently the model is developed further, in order to describe other HTS materials and other types of applications.

  12. Comparison of gravimetric and spectroscopic approaches to quantify stratum corneum removed by tape-stripping.

    Mohammed, D; Yang, Q; Guy, R H; Matts, P J; Hadgraft, J; Lane, M E

    2012-09-01

    Skin surface tape-stripping is an extensively used technique to examine the distribution profile, penetration and safety of various active compounds. It is also a widely accepted method to probe skin barrier properties and more specifically, those of the stratum corneum (SC). The amount of SC removed by tape-stripping is generally determined either gravimetrically or by extraction and measurement of SC proteins. A novel infra-red densitometry (IRD) technique has recently been introduced to measure SC protein content. In the present study, IRD was investigated as an alternative method to measure the mass of SC removed by tape-stripping. Tape-stripping experiments were conducted on human volunteers. The weight of the stratum corneum removed was assessed by the gravimetric approach and by IRD. Transepidermal water loss (TEWL) was also measured before and after each tape-strip. A linear correlation coefficient was obtained for the data from the gravimetric and IRD measurements (r(2)=0.65; n=240). IRD is therefore proposed as a rapid, non-destructive alternative to the gravimetric approach to estimate the amount of SC removed by tape-stripping in vivo. PMID:22713518

  13. Effects of gluteal kinesio-taping on performance with respect to fatigue in rugby players.

    Strutzenberger, Gerda; Moore, Joseph; Griffiths, Hywel; Schwameder, Hermann; Irwin, Gareth

    2016-01-01

    Kinesio-tape(®) has been suggested to increase blood circulation and lymph flow and might influence the muscle's ability to maintain strength during fatigue. Therefore, the aim of this study was to investigate the influence of gluteal Kinesio-tape(®) on lower limb muscle strength in non-fatigued and fatigued conditions. A total of 10 male rugby union players performed 20-m sprint and vertical jump tests before and after a rugby-specific fatigue protocol. The 20-m sprint time was collected using light gates (SMARTSPEED). A 9-camera motion analysis system (VICON, 100 Hz) and a force plate (Kistler, 1000 Hz) measured the kinematics and kinetics during a counter movement jump and drop-jump. The effect of tape and fatigue on jump height, maximal vertical ground reaction force, reactivity strength index as well as lower limb joint work were analysed via a two-way analysis of variance. The fatigue protocol resulted in significantly decreased performance of sprint time, jump heights and alterations in joint work. No statistical differences were found between the taped and un-taped conditions in non-fatigued and fatigued situation as well as in the interaction with fatigue. Therefore, taping the gluteal muscle does not influence the leg explosive strength after fatiguing in healthy rugby players. PMID:25647686

  14. Powder-in-tube-processed multifilamentary Bi-(2223) tapes with silver-alloy sheaths

    Superconducting Bi-(2223) multifilamentary tapes with Ag100-xYx alloy sheaths, with Y = Cu, Mn and Pd, were made by the oxide-powder-in-tube technique. All resistivities of the Ag alloy sheaths exceed that of the pure Ag sheath by at least a factor of 2. The maximum resistivity was achieved for Ag99Pd1 with ρ77K = 1.3 μΩcm. Tapes sheathed by Ag90Cu10 exceed the critical current density, JC, of pure Ag sheathed ones. JC up to 26 kA/cm2 were achieved by pressing Ag90Cu10 sheathed tapes during the thermo-mechanical-treatment, TMT. For thinner Ag90Cu10 sheathed tapes up to 31 kA/cm2 were obtained employing flat rolling during TMT. Measured irreversibility lines of thin and thicker tapes with comparable JC suggest, that thicker tapes have a larger pinning strength and a better grain texture but thinner ones a better grain-to-grain connectivity

  15. Design and Test of a Thermal Triggered Persistent Current System using High Temperature Superconducting Tapes

    A superconducting magnet which is operated in persistent current mode in SMES, NMR, MRI and MAGLEV has many advantages such as high uniformity of magnetic field and reduced thermal loss. A high temperature superconducting (HTS) persistent current switch (PCS) system was designed and tested in this research. The HTS PCS was optimally designed using two different HTS tapes, second generation coated conductor (CC) HTS tape and Bi-2223 HTS tape by the finite element method (FEM) in thermal quench characteristic view. The CC tape is more prospective applicable wire in these days for its high n value and critical current independency from external magnetic field than Bi-2223 tape. Also a prototype PCS system using Bi-2223 tape was manufactured and tested. The PCS system consists of a PCS part, a heater which induces the PCS to quench, and a superconducting magnet. The test was performed in various conditions of transport current. An initial current decay appeared when the superconducting magnet was energized in a PCS system was analyzed. This paper would be foundation of HTS PCS researches

  16. Gecko adhesion pad: a smart surface?

    Pesika, Noshir S.; Zeng, Hongbo; Kristiansen, Kai; Zhao, Boxin; Tian, Yu; Autumn, Kellar; Israelachvili, Jacob

    2009-11-01

    Recently, it has been shown that humidity can increase the adhesion of the spatula pads that form the outermost (adhesive) surface of the tokay gecko feet by 50% relative to the main adhesion mechanism (i.e. van der Waals adhesive forces), although the mechanism by which the enhancement is realized is still not well understood. A change in the surface hydrophobicity of a gecko setal array is observed when the array, which supports the spatulae, is exposed to a water drop for more than 20 min, suggesting a change in the hydrophilic-lyophilic balance (HLB), and therefore of the conformation of the surface proteins. A surface force apparatus (SFA) was used to quantify these changes, i.e. in the adhesion and friction forces, while shearing the setal array against a silica surface under (i) dry conditions, (ii) 100% humidity and (iii) when fully immersed in water. The adhesion increased in the humid environment but greatly diminished in water. Although the adhesion forces changed significantly, the friction forces remained unaffected, indicating that the friction between these highly textured surfaces is 'load-controlled' rather than 'adhesion-controlled'. These results demonstrate that the gecko adhesive pads have the ability to exploit environmental conditions to maximize their adhesion and stabilize their friction forces. Future designs of synthetic dry adhesives inspired by the gecko can potentially include similar 'smart' surfaces that adapt to their environment.

  17. Gecko adhesion pad: a smart surface?

    Recently, it has been shown that humidity can increase the adhesion of the spatula pads that form the outermost (adhesive) surface of the tokay gecko feet by 50% relative to the main adhesion mechanism (i.e. van der Waals adhesive forces), although the mechanism by which the enhancement is realized is still not well understood. A change in the surface hydrophobicity of a gecko setal array is observed when the array, which supports the spatulae, is exposed to a water drop for more than 20 min, suggesting a change in the hydrophilic-lyophilic balance (HLB), and therefore of the conformation of the surface proteins. A surface force apparatus (SFA) was used to quantify these changes, i.e. in the adhesion and friction forces, while shearing the setal array against a silica surface under (i) dry conditions, (ii) 100% humidity and (iii) when fully immersed in water. The adhesion increased in the humid environment but greatly diminished in water. Although the adhesion forces changed significantly, the friction forces remained unaffected, indicating that the friction between these highly textured surfaces is 'load-controlled' rather than 'adhesion-controlled'. These results demonstrate that the gecko adhesive pads have the ability to exploit environmental conditions to maximize their adhesion and stabilize their friction forces. Future designs of synthetic dry adhesives inspired by the gecko can potentially include similar 'smart' surfaces that adapt to their environment.

  18. Gecko adhesion pad: a smart surface?

    Pesika, Noshir S [Chemical and Biomolecular Engineering Department, Tulane University, New Orleans, LA 70118 (United States); Zeng Hongbo [Chemical and Materials Engineering Department, University of Alberta, Edmonton, AB, T6G 2V4 (Canada); Kristiansen, Kai; Israelachvili, Jacob [Chemical Engineering Department, University of California, Santa Barbara, CA 93117 (United States); Zhao, Boxin [Chemical Engineering Department and Waterloo Institute of Nanotechnology, University of Waterloo, Ontario, N2L 3G1 (Canada); Tian Yu [State Key Laboratory of Tribology, Department of Precision Instruments, Tsinghua University, Beijing 100084 (China); Autumn, Kellar, E-mail: npesika@tulane.ed [Department of Biology, Lewis and Clark College, Portland, OR 97219 (United States)

    2009-11-18

    Recently, it has been shown that humidity can increase the adhesion of the spatula pads that form the outermost (adhesive) surface of the tokay gecko feet by 50% relative to the main adhesion mechanism (i.e. van der Waals adhesive forces), although the mechanism by which the enhancement is realized is still not well understood. A change in the surface hydrophobicity of a gecko setal array is observed when the array, which supports the spatulae, is exposed to a water drop for more than 20 min, suggesting a change in the hydrophilic-lyophilic balance (HLB), and therefore of the conformation of the surface proteins. A surface force apparatus (SFA) was used to quantify these changes, i.e. in the adhesion and friction forces, while shearing the setal array against a silica surface under (i) dry conditions, (ii) 100% humidity and (iii) when fully immersed in water. The adhesion increased in the humid environment but greatly diminished in water. Although the adhesion forces changed significantly, the friction forces remained unaffected, indicating that the friction between these highly textured surfaces is 'load-controlled' rather than 'adhesion-controlled'. These results demonstrate that the gecko adhesive pads have the ability to exploit environmental conditions to maximize their adhesion and stabilize their friction forces. Future designs of synthetic dry adhesives inspired by the gecko can potentially include similar 'smart' surfaces that adapt to their environment.

  19. Adhesive mechanisms in cephalopods: a review.

    von Byern, Janek; Klepal, Waltraud

    2006-01-01

    Several genera of cephalopods (Nautilus, Sepia, Euprymna and Idiosepius) produce adhesive secretions, which are used for attachment to the substratum, for mating and to capture prey. These adhesive structures are located in different parts of the body, viz. in the digital tentacles (Nautilus), in the ventral surface of the mantle and fourth arm pair (Sepia), in the dorsal epidermis (Euprymna), or in the dorsal mantle side and partly on the fins (Idiosepius). Adhesion in Sepia is induced by suction of dermal structures on the mantle, while for Nautilus, Euprymna and Idiosepius adhesion is probably achieved by chemical substances. Histochemical studies indicate that in Nautilus and Idiosepius secretory cells that appear to be involved in adhesion stain for carbohydrates and protein, whilst in Euprymna only carbohydrates are detectable. De-adhesion is either achieved by muscle contraction of the tentacles and mantle (Nautilus and Sepia) or by secretion of substances (Euprymna). The de-adhesive mechanism used by Idiosepius remains unknown. PMID:17110356

  20. Bacterial adhesion and biofilms on surfaces

    Trevor Roger Garrett; Manmohan Bhakoo; Zhibing Zhang

    2008-01-01

    Bacterial adhesion has become a significant problem in industry and in the domicile,and much research has been done for deeper understanding of the processes involved.A generic biological model of bacterial adhesion and population growth called the bacterial biofilm growth cycle,has been described and modified many times.The biofilm growth cycle encompasses bacterial adhesion at all levels,starting with the initial physical attraction of bacteria to a substrate,and ending with the eventual liberation of cell dusters from the biofilm matrix.When describing bacterial adhesion one is simply describing one or more stages of biofilm development,neglecting the fact that the population may not reach maturity.This article provides an overview of bacterial adhesion.cites examples of how bac-terial adhesion affects industry and summarises methods and instrumentation used to improve our understanding of the adhesive prop-erties of bacteria.

  1. Host Selection of Microbiota via Differential Adhesion.

    McLoughlin, Kirstie; Schluter, Jonas; Rakoff-Nahoum, Seth; Smith, Adrian L; Foster, Kevin R

    2016-04-13

    The host epithelium is the critical interface with microbial communities, but the mechanisms by which the host regulates these communities are poorly understood. Here we develop the hypothesis that hosts use differential adhesion to select for and against particular members of their microbiota. We use an established computational, individual-based model to study the impact of host factors that regulate adhesion at the epithelial surface. Our simulations predict that host-mediated adhesion can increase the competitive advantage of microbes and create ecological refugia for slow-growing species. We show how positive selection via adhesion can be transformed into negative selection if the host secretes large quantities of a matrix such as mucus. Our work predicts that adhesion is a powerful mechanism for both positive and negative selection within the microbiota. We discuss molecules-mucus glycans and IgA-that affect microbe adhesion and identify testable predictions of the adhesion-as-selection model. PMID:27053168

  2. Electrochemical Corrosion of Adhesive Joints

    Vondrák, Jiří

    Vol. 2. Brno: Akademické nakladatelství CERM, 2000 - (Vondrák, J.; Sedlaříková, M.), s. 10.1-10.2 ISBN 80-214-1615-7. [Advanced Batteries and Accumulators /1./. Brno (CZ), 28.08.2000-01.09.2000] Institutional research plan: CEZ:AV0Z4032918 Keywords : adhesive * joints * corrosion Subject RIV: CG - Electrochemistry

  3. Underwater adhesion: The barnacle way

    Khandeparker, L.; Anil, A.C.

    surrounded by calcium carbonate (calcite). It has been suggested that the anionic groups on the matric proteins may serve as sites for nucleation during calcification [47]. The disruption in such interactions can thus bring about hindrance during... of bones, nerves and blood vessels in an aqueous environment and dental filling without the need for drilling [83]. It has been suggested that with the advances in biomimetics, future dentin adhesive monomers may contain domains derived from...

  4. Factors Discuss of Influencing the Properties of Dry Mica Tape Reinforced by E-glass Cloth%影响无碱玻璃布补强少胶粉云母带性能因素的探讨

    苗巧燕

    2014-01-01

    介绍了厚度为0.11 mm的无碱玻璃布补强少胶云母带的胶粘剂、粉云母纸、补强材料的选择以及制造工艺,并分析了影响该少胶粉云母带电气强度、拉伸强度、透气性等性能的重要因素。结果表明:选用EW32无碱玻璃布、渗透时间为14~15 s的云母纸,控制胶含量为8%时,制得少胶云母带的使用工艺性及综合性能良好,可以满足电机真空压力浸漆(VPI)的应用要求。%The selection of adhesive, mica paper and reinforcing material of a dry mica tape reinforced by e-glass cloth with the thickness of 0.11 mm and its manufacturing process were introduced, and the factors influencing the electric strength, tensile strength and permeability of the dry mica tape were ana-lyzed. The results show that through selecting EW32 e-glass cloth and mica paper with penetration time of 14~15 s and controlling the adhesive content to 8%,the prepared dry mica tape has good using tech-nology and comprehensive properties, which can satisfy the application requirements of motor in vacuum pressure impregnating.

  5. Culinary Medicine-Jalebi Adhesions.

    Kapoor, Vinay K

    2016-02-01

    Culinary terms have been used to describe anatomy (bean-shaped kidneys), pathology (strawberry gall bladder), clinical signs (café-au-lait spots), radiological images (sausage-shaped pancreas), etc. While Indian cuisine is popular all over the world, no Indian dish finds mention in medical terminology. In intra-abdominal adhesions, sometimes, the intestinal loops are so densely adherent that it is difficult to make out proximal from distal and it is impossible to separate them without injuring the bowel resulting in spill of contents-resection is the only option (Fig. 1). Jalebi, an Indian dessert, has a single long tubular strip of fried batter filled with sugary syrup so intertwined that it is impossible to discern its ends; if broken, the syrup spills out-the best way to relish it is to chew the whole piece (Fig. 2). Because of these similarities between them, I propose to name dense intra-abdominal adhesions as 'jalebi adhesions.' PMID:27186047

  6. [Adhesion to the antiretroviral treatment].

    Carballo, M

    2004-12-01

    The objective of the therapy antiretroviral is to improve the quality of life and the survival of the persons affected by the VIH through the suppression of the viral replication. Nevertheless one of the present problems is the resistant apparition of stumps to the new medicines caused by an incorrect management of the therapeutic plan; by an incorrect adhesion of the personal processing. Since the therapeutic success will depend, among others factors, and of important form of the degree of implication and commitment of the person affected, is a matter of identifying prematurely the possible situations concomitants (personal factors and of addiction, psycho-social, related to the processing and its possible secondary effects, associated factors to the own illness or even to the relation professional-patient) that can interfere in a correct adhesion. For it is necessary of the interaction multidisciplinary of the welfare team, and fundamental the work of nursing at the moment of to detect the possible determinant factors and the intervention definition of strategies arrived at by consensus with the own person, that they promote it or it improve. The quantification of the degree of adhesion (measure in %) values through various direct and indirect methods and should keep in mind in it takes of therapeutic decisions being able to come to be advised the suspension of the processing until obtaining to conscience to the person affected of the importance of a correct therapeutic compliance. PMID:15672996

  7. Characterizing Delamination Migration in Carbon/Epoxy Tape Laminates

    Ratcliffe, James G.; Czabaj, Michael W.; Obrien, Thomas K.

    2012-01-01

    A new test method is presented for the purpose of investigating migration of a delamination between neighboring ply interfaces in fiber-reinforced, polymer matrix tape laminates. The test is a single cantilever beam configuration consisting of a cross-ply laminate with a polytetrafluoroethylene (PTFE) insert implanted at the mid-plane and spanning part way along the length of the specimen. The insert is located between a 0-degree ply (specimen length direction) and a stack of four 90-degree plies (specimen width direction). The specimen is clamped at both ends onto a rigid baseplate and is loaded on its upper surface via a piano hinge. Tests were conducted with the load-application point located on the intact portion of the specimen in order to initiate delamination growth onset followed by migration of the delamination to a neighboring 90/0 ply interface by kinking through the 90- degree ply stack. Varying this position was found to affect the distance relative to the load-application point at which migration initiated. In each specimen, migration initiated by a gradual transition of the delamination at the 0/90 interface into the 90- degree ply stack. In contrast, transition of the kinked crack into the 90/0 interface was sudden. Fractography of the specimens indicated that delamination prior to migration was generally mixed mode-I/II. Inspection of the kink surface revealed mode-I fracture. In general, use of this test allows for the observation of the growth of a delamination followed by migration of the delamination to another ply interface, and should thus provide a means for validating analyses aimed at simulating migration.

  8. Trans-obturator Tape in surgical treatment of urinary incontinence

    Ashrafi M

    2008-06-01

    Full Text Available Background: The aim of this study was to assess the efficacy and safety of a new minimally-invasive surgical procedure using trans-obturator Tape (TOT to treat female stress urinary incontinence.Methods: This clinical trial study was performed from 2003 to 2004 in the Gynecology Department of Imam Hospital, Vali-e-Asr, Tehran, Iran. A total of 35 women with stress urinary incontinence underwent the TOT procedure. All patients underwent pre-operative clinical examination, cough-stress test (full bladder, uroflowmetry and post-voiding residual volume assessment. Results: The mean age of patients was 50 years, ranging from 26 to 74 years, with an average urinary stress incontinence duration of six years. The mean time of follow-up was 14 months (at 1, 6, 12 and 24 months and the average duration of surgery was about 20 minutes. The perioperative complication rate was 9% with no vascular, nerve or bowel injuries. The rate of hemorrhagic side effects (spontaneously-absorbed hematoma and blood loss not requiring blood transfusion was 2.9%. Post-operative urinary retention and vaginal erosion occurred in one case each; the former was treated by intermittent self-catheterization. In total, 91.4% of patients were completely cured and 8.6% were improved without failure of treatment. Conclusions: The present study confirms the results obtained by Delorme and coworkers, and allows us to consider TOT as a safe, minimally invasive and efficient short-term surgical technique for the treatment of female stress urinary incontinence, alone or in combination with prolapse repair. Following this study, a randomized control trial is recommended to compare TOT with the gold standard surgery for women with urinary incontinence.

  9. Evaluation of 4-nonylphenol toxicity in the clam Tapes philippinarum

    Lethal and sub lethal effects of 4-nonylphenol (NP) were investigated in the clam Tapes philippinarum from the Lagoon of Venice. In a 96-h lethality test, bivalves were exposed to the following NP concentrations: 0, 0+acetone, .19, 0.38, 0.75, 1.5, and 3.0 mg NP/L. The 96-h LC50 value was 1.12 mg P/L. No mortality was observed at 0.19 mg NP/L, whereas at 1.5 and 3.0 mg P/L both siphons and foot of clams were often cut-off, the animals being unable to withdraw them before shell closure, suggesting the possible narcotic effect of NP. Lower concentrations (0, 0+acetone, 0.025, 0.05, 0.1, nd 0.2 mg NP/L) were then used to evaluate sub lethal NP effects on clearance rate (CR), respiration rate (RR), scope for growth (SFG), and survival in ir. Following a 7-day exposure, decreased RRs were found at all NP concentrations tested. Significant decreases in the CR and SFG were only observed at the two highest NP concentrations (0.1 and 0.2 mg/L), with SFG reductions reaching 54% and 71%, respectively. Last, the highest concentrations tested significantly decreased the resistance of clams to exposure to air and enhanced the mortality rate. As the lowest effective NP concentrations are similar to environmentally realistic levels, a condition of potential risk for the well-being of clam populations in estuarine areas is highlighted

  10. Wet Adhesion and Adhesive Locomotion of Snails on Anti-Adhesive Non-Wetting Surfaces

    Shirtcliffe, Neil; McHale, Glen; Newton, Michael

    2012-01-01

    Creating surfaces capable of resisting liquid-mediated adhesion is extremely difficult due to the strong capillary forces that exist between surfaces. Land snails use this to adhere to and traverse across almost any type of solid surface of any orientation (horizontal, vertical or inverted), texture (smooth, rough or granular) or wetting property (hydrophilic or hydrophobic) via a layer of mucus. However, the wetting properties that enable snails to generate strong temporary attachment and th...

  11. SUPLEMENTASI Lactobacillus acidophilus SNP-2 PADA TAPE DAN PENGARUHNYA PADA RELAWAN [Supplementation of Lactocbacillus acidophilus SNP-2 Into Tape and its Effect to the Volunteer

    Endang S Rahayu1

    2004-08-01

    Full Text Available Functional food is defined as any potentially healthful food or food ingredient that may provide a health benefit beyond the traditional nutrients it contains. Many researches have been conducted on the health benefit of probiotic (life bacterial cells, one of the ingredient of functional foods. One of the potential bacteria used for probiotic agent and also involved in traditional fermented foods are lactic acid bacteria (LAB. Previous research showed that Lactobacillus acidophilus SNP-2 isolated from faecal material of healthy infant is resistant to acid and bile salt, and has an antagonistic effect against several enteric bacterial pathogens. The objective of this research was to study the effect of L. acidophilus SNP-2 as probiotic agent to the health benefits. These bacteria were supplemented into tape ketan (fermented sticky rice, the indigenous Indonesian fermented food. Tape ketan was chosen as the carrier of probiotic biomass based on the high population of LAB in this product, i.e., 1.3 x 108 CFU/g. Addition of L. acidophilus SNP-2 biomass prior to fermentation of tape ketan resulted in a higher total of LAB cells, i.e. 2.1 x 109 CFU/g compared to the amount of 1.5 x 108 CFU/g when the addition was done after fermentation. Consumption of tape ketan containing probiotic agent by the volunteers increased the population of lactobacilli (from 1.7x107 CFU/g to 9.9x107 CFU/g and decreased the population of enterobacteriacea (from 5.4x109 CFU/g to 4.4x108 in their faecal material. This phenomenon revealed that probiotic agent was able to colonize and inhibit the growth of enterobacteriaceae in the gastrointestinal tract. The result implied that tape ketan can be used as a carrier for probiotic agent and it can be categorized as functional food

  12. Evaluation of D-1 tape and cassette characteristics: Moisture content of Sony and Ampex D-1 tapes when delivered

    Ashton, Gary

    Commercial D-1 cassette tapes and their associated recorders were designed to operate in broadcast studios and record in accordance with the International Radio Consultative Committee (CCIR) 607 digital video standards. The D-1 recorder resulted in the Society of Motion Picture and Television Engineers (SMPTE) standards 224 to 228 and is the first digital video recorder to be standardized for the broadcast industry. The D-1 cassette and associated media are currently marketed for broadcast use. The recorder was redesigned for data applications and is in the early stages of being evaluated. The digital data formats used are specified in MIL-STD-2179 and the American National Standards Institute (ANSI) X3.175-190 standard. In early 1990, the National Media Laboratory (NML) was asked to study the effects of time, temperature, and relative humidity on commercial D-1 cassettes. The environmental range to be studied was the one selected for the Advanced Tactical Air Reconnaissance System (ATARS) program. Several discussions between NML personnel, ATARS representatives, recorder contractors, and other interested parties were held to decide upon the experimental plan to be implemented. Review meetings were held periodically during the course of the experiment. The experiments were designed to determine the dimensional stability of the media and cassette since this is one of the major limiting factors of helical recorders when the media or recorders are subjected to non-broadcasting environments. Measurements were also made to characterize each sample of cassettes to give preliminary information on which purchase specifications could be developed. The actual tests performed on the cassettes and media before and after aging fall into the general categories listed.

  13. Influence of twisted tape turbulence promoter on fouling reduction in microfiltration of milk proteins

    Popović Svetlana S.

    2011-01-01

    Full Text Available Membrane filtration has become one of the major technologies in the food industry. It is widely applied in the dairy industry, and it is mostly used for the concentration and fractionation of milk proteins and for the whey processing. Of all pressure driven membrane processes, ultrafiltration is the most widely used. The major disadvantage of pressure driven membrane processes is severe fouling of membrane during filtration particularly when the fluids containing proteins are processed. Fouling with proteins is complex phenomenon because it occurs at the membrane surface as well as in the pores of membrane, and depends on the operating conditions and on the interactions of proteins and membrane material. In order to reduce fouling of the membrane different techniques have been developed, and one of them relies on the changing of the hydrodynamic conditions in the membrane or module. In this study, influence of twisted tape turbulence promoters on the fouling reduction in cross-flow microfiltration of skim milk was investigated. Twisted tapes with tree characteristic ratios of helix element length to the tape diameter (aspect ratio were studied. It was shown that twisted tapes with different aspect ratios reduce fouling of membrane by a factor of three or more. The presence of twisted tape induces changes in the flow patterns from straight to helicoidally thus producing turbulence flow at the lower cross-flow rates. Turbulence intensification prevents accumulation of proteins at membrane surface enabling reduction in reversible fouling what results in the reduction of overall membrane fouling. The best performance was achieved using a twisted tape with the lowest aspect ratio of 1.0. This promoter reduces fouling seven times at low transmembrane pressure and low cross-flow velocity. The twisted tape with aspect ratio 1.0 induces the most intensive turbulence, the longest helicoidal flow path, and appearance of vortices near the membrane surfaces

  14. Effect of wire arrangements on AC transport losses in cylindrical conductors composed of Ag-sheathed Bi2223 tapes

    The AC transport self-field losses at 77 K were investigated on the double-layer cylindrical conductors composed of Ag-sheathed Bi2223 tapes. The multifilamentary tapes as the strands are arranged in a parallel way on the cylindrical former with a diameter of 10.5 mm. The loss values are strongly influenced by the arrangements of tape strands in the conductors. The loss generation in conductors enhances with increasing of the separation between the layers and gap length between the adjacent tapes in the outer-layer. From the numerical calculations of the loss density distributions per-cycle in the conductors, it is suggested that the difference in loss values for each conductor is attributed to the magnetic flux distributions due to self-field and loss generations in tape strands, varying with the arrangement of tape strands in the conductors

  15. Investigate on the application of elliptical drawing dies during the manufacturing process of Bi-2223/Ag superconducting tapes

    Liu, R. [Tsinghua University, Beijing 100084 (China); Innova Superconductor Technology Co., Ltd., 7 Rongchang Dongjie, Longsheng Industrial Park, Beijing Economic and Technological Development Area, Beijing 100176 (China)], E-mail: liuruiliyu@sina.com; Qu, T.-M. [Tsinghua University, Beijing 100084 (China); Zhang, J.-S.; Song, X.-H. [Innova Superconductor Technology Co., Ltd., 7 Rongchang Dongjie, Longsheng Industrial Park, Beijing Economic and Technological Development Area, Beijing 100176 (China); Liang, T. [Tsinghua University, Beijing 100084 (China); Liu, Q. [Chongqing University, Chongqing 400044 (China); Han, Z. [Tsinghua University, Beijing 100084 (China); Innova Superconductor Technology Co., Ltd., 7 Rongchang Dongjie, Longsheng Industrial Park, Beijing Economic and Technological Development Area, Beijing 100176 (China)

    2008-09-15

    Elliptical drawing (ED) dies were used during the manufacturing process of Bi-2223/Ag superconducting tapes and their influence on the tapes' homogeneity and critical currents (I{sub c}) has been investigated. By comparing two types of HTS tapes drawn by ED dies and a set of reference round dies, we found that the ED process can improve the qualities of the rolled tapes, such as improving the homogeneity of both the center and the peripheral filaments of the tapes, reducing the micro-cracks caused by the rolling process. Thus, the ED process can increase the I{sub c} and engineering critical current density (J{sub e}) values of HTS tapes.

  16. Experimental Investigation of Optimal Adhesion of Mushroomlike Elastomer Microfibrillar Adhesives.

    Marvi, Hamidreza; Song, Sukho; Sitti, Metin

    2015-09-22

    Optimal fiber designs for the maximal pull-off force have been indispensable for increasing the attachment performance of recently introduced gecko-inspired reversible micro/nanofibrillar adhesives. There are several theoretical studies on such optimal designs; however, due to the lack of three-dimensional (3D) fabrication techniques that can fabricate such optimal designs in 3D, there have not been many experimental investigations on this challenge. In this study, we benefitted from recent advances in two-photon lithography techniques to fabricate mushroomlike polyurethane elastomer fibers with different aspect ratios of tip to stalk diameter (β) and tip wedge angles (θ) to investigate the effect of these two parameters on the pull-off force. We found similar trends to those predicted theoretically. We found that β has an impact on the slope of the force-displacement curve while both β and θ play a role in the stress distribution and crack propagation. We found that these effects are coupled and the optimal set of parameters also depends on the fiber material. This is the first experimental verification of such optimal designs proposed for mushroomlike microfibers. This experimental approach could be used to evaluate a wide range of complex microstructured adhesive designs suggested in the literature and optimize them. PMID:26322396

  17. Space demostration of bare electrodynamic tape-tether technology on the sounding rocket S520-25

    Fujii, Hironori; Watanabe, Takeo; Sahara, Hironori; Kojima, Hirohisa; Takehara, Shoichiro; Yamagiwa, Yoshiki; Sasaki, Susumu; Abe, Takumi; Tanaka, Koji; Oyama, Khoichiro; Jhonson, Les; Khazanov, V.; Sanmartín Losada, Juan Ramón; Charro, Mario; Kruijff, Michiel

    2011-01-01

    A spaceflight validation of bare electro dynamic tape tether technology was conducted. A S520-25 sounding rocket was launched successfully at 05:00am on 31 August 2010 and successfully deployed 132.6m of tape tether over 120 seconds in a ballistic flight. The electrodynamic performance of the bare tape tether employed as an atmospheric probe was measured. Flight results are introduced through the present progressive report of the demonstration and the results of flight experiment are ex...

  18. T-REX: Bare electro-dynamic tape-tether technology experimetn on sounding rocket S520

    Watanabe, Takeo; Fujii, Hironori; Kusagaya, Tairo; Sahara, Hironori; Kojima, Hirohisa; Takehara, Shoichiro; Yamagiwa, Yoshiki; Sasaki, Susumu; Abe, Takumi; Tanaka, Koji; Oyama, Khoichiro; Ebinuma, Takuji; Johson, Les; Khazanov, George; Sanmartín Losada, Juan Ramón

    2012-01-01

    The project to verify the performance of space tether technology was successfully demonstrated by the launch of the sounding rocket S520 the 25tu. The project is the space demonstration of science and engineering technologies of a bare tape electrodynamic tether (EDT) in the international campaign between Japan, USA, Europe and Australia. Method of "Inverse ORIGAMI (Tape tether folding)" was employed in order to deploy the bare tape EDT in a short period time of the suborbital flight. The ...

  19. Kinesio Taping Does Not Alter Quadriceps Isokinetic Strength and Power in Healthy Nonathletic Men: A Prospective Crossover Study

    Paweł Korman; Anna Straburzyńska-Lupa; Radosław Rutkowski; Jakub Gruszczyński; Jacek Lewandowski; Marcin Straburzyński-Lupa; Dawid Łochyński

    2015-01-01

    Objectives. The effects of Kinesio Taping (KT) on muscular performance remain largely unclear. This study aimed to investigate the acute effects of KT on the maximum concentric and eccentric quadriceps isokinetic strength. Study Design. This is a single-blinded, placebo crossover, repeated measures study. Methods. Maximum isokinetic concentric/eccentric extension torque, work, and power were assessed by an isokinetic dynamometer without taping (NT) and with KT or placebo taping (PT) in 17 hea...

  20. Synaptic Cell Adhesion Molecules in Alzheimer's Disease

    Leshchyns'ka, Iryna

    2016-01-01

    Alzheimer's disease (AD) is a neurodegenerative brain disorder associated with the loss of synapses between neurons in the brain. Synaptic cell adhesion molecules are cell surface glycoproteins which are expressed at the synaptic plasma membranes of neurons. These proteins play key roles in formation and maintenance of synapses and regulation of synaptic plasticity. Genetic studies and biochemical analysis of the human brain tissue, cerebrospinal fluid, and sera from AD patients indicate that levels and function of synaptic cell adhesion molecules are affected in AD. Synaptic cell adhesion molecules interact with Aβ, a peptide accumulating in AD brains, which affects their expression and synaptic localization. Synaptic cell adhesion molecules also regulate the production of Aβ via interaction with the key enzymes involved in Aβ formation. Aβ-dependent changes in synaptic adhesion affect the function and integrity of synapses suggesting that alterations in synaptic adhesion play key roles in the disruption of neuronal networks in AD. PMID:27242933

  1. The Rheological Property of Potato Starch Adhesives

    Junjun Liu

    2014-02-01

    Full Text Available The main goal of this study was to use potato starch in the production of environmentally sound adhesives. ‘Three-formaldehyde glue’ pollutes the environment and harms to human health strongly, which widely used for wood-based panels preparation. Environment-friendly potato starch adhesives were prepared using method of oxidation-gelatinization, insteading of the three formaldehyde glue. The effects of the quality ratio of starch and water, temperature and shear rate on the apparent viscosity of the adhesive were studied. The rheological eigenvalue of apparent viscosity was studied through nonlinear regression. The results showed that the apparent viscosity of potato starch adhesives decreased with the increasing of temperature; the apparent viscosity decreased slowly with the increasing of rotor speed; the phenomenon of shear thinning appeared within potato starch adhesives which was pseudo-plastic fluids. Potato starch adhesives with characteristics of non-toxic, no smell and pollution could be applied in interior and upscale packaging.

  2. Lignin-Furfural Based Adhesives

    Prajakta Dongre; Mark Driscoll; Thomas Amidon; Biljana Bujanovic

    2015-01-01

    Lignin recovered from the hot-water extract of sugar maple (Acer saccharum) is used in this study to synthesize adhesive blends to replace phenol-formaldehyde (PF) resin. Untreated lignin is characterized by lignin content and nuclear magnetic resonance (NMR) analysis. The molecular weight distribution of the lignin and the blends are characterized by size exclusion chromatography (SEC). The effect of pH (0.3, 0.65 and 1), ex situ furfural, and curing conditions on the tensile properties of a...

  3. Lignin-Furfural Based Adhesives

    Prajakta Dongre; Mark Driscoll; Thomas Amidon; Biljana Bujanovic

    2015-01-01

    Lignin recovered from the hot-water extract of sugar maple ( Acer saccharum ) is used in this study to synthesize adhesive blends to replace phenol-formaldehyde (PF) resin. Untreated lignin is characterized by lignin content and nuclear magnetic resonance (NMR) analysis. The molecular weight distribution of the lignin and the blends are characterized by size exclusion chromatography (SEC). The effect of pH (0.3, 0.65 and 1), ex situ furfural, and curing conditions on the tensile properties of...

  4. Syndecan-4 and focal adhesion function

    Woods, A; Couchman, J R

    2001-01-01

    Two groups have now reported the viability of mice that lack syndecan-4. These mice have wound healing/angiogenesis problems, and fibroblasts from these animals differ in adhesion and migration from normal. This is consistent with recent in vitro data indicating a need for signaling via syndecan-4...... for focal adhesion formation, and reports that overexpression of proteins that bind syndecan-4 can modify cell adhesion and migration....

  5. Tuning the kinetics of cadherin adhesion

    Sivasankar, Sanjeevi

    2013-01-01

    Cadherins are Ca2+ dependent cell-cell adhesion proteins that maintain the structural integrity of the epidermis; their principle function is to resist mechanical force. This review summarizes the biophysical mechanisms by which classical cadherins tune adhesion and withstand mechanical stress. We first relate the structure of classical cadherins to their equilibrium binding properties. We then review the role of mechanical perturbations in tuning the kinetics of cadherin adhesion. In particu...

  6. Factors influencing bacterial adhesion to contact lenses

    Dutta, Debarun; Cole, Nerida; Willcox, Mark

    2012-01-01

    The process of any contact lens related keratitis generally starts with the adhesion of opportunistic pathogens to contact lens surface. This article focuses on identifying the factors which have been reported to affect bacterial adhesion to contact lenses. Adhesion to lenses differs between various genera/species/strains of bacteria. Pseudomonas aeruginosa, which is the predominant causative organism, adheres in the highest numbers to both hydrogel and silicone hydrogel lenses in vitro. The ...

  7. Investigation on the electromechanical properties of RCE-DR GdBCO CC tapes under transversely applied load

    Anon [Dept. of Mechanical Design Engieering, Andong National University, Andong (Korea, Republic of); Anon [Dept. of Engineering, Aurora State College of Technology, Baler (Philippines)

    2014-12-15

    REBCO coated conductor (CC) tapes with superior mechanical and electromechanical properties are preferable in applications such as superconducting coils and magnets. The CC tapes should withstand factors that can affect their performance during fabrication and operation of its applications. In coil applications, CC tapes experience different mechanical constraints such as tensile or compressive stresses. Recently, the critical current (I{sub c}) degradation of CC tapes used in coil applications due to delamination were already reported. Thermal cycling, coefficient of thermal expansion mismatch among constituent layers, screening current, etc. can induce excessive transverse tensile stresses that might lead to the degradation of I{sub c} in the CC tapes. Also, CC tapes might be subjected to very high magnetic fields that induce strong Lorentz force which possibly affects its performance in coil applications. Hence, investigation on the delamination mechanism of the CC tapes is very important in coiling, cooling, operation and design of prospect applications. In this study, the electromechanical properties of REBCO CC tapes fabricated by reactive co-evaporation by deposition and reaction (RCE-DR) under transversely applied loading were investigated. Delamination strength of the CC tape was determined using the anvil test. The I{sub c} degraded earlier under transverse tensile stress as compared to that under compressive one.

  8. Effect of Kinesiology Taping on Breast Cancer-Related Lymphedema: A Randomized Single-Blind Controlled Pilot Study

    A. Smykla

    2013-01-01

    Full Text Available The aim of the study was to assess the efficacy of Kinesiology Taping (KT for treating breast cancer-related lymphedema. Sixty-five women with unilateral stage II and III lymphedema were randomly grouped into the KT group (K-tapes, n=20, the Quasi KT group (quasi K-tapes, n=22, or the MCT group (multilayered compression therapy group, n=23. Skin care, 45 min pneumatic compression therapy, 1 h manual lymphatic drainage, and application of K-tape/Quasi K-tapes/multilayered short-stretch bandages were given every treatment session, 3 times per week for 1 month. Patient evaluation items included limb size and percentage edema. Comparing the changes in K-tapes with quasi K-tapes changes, there were no significant differences (P>0.05. The edema reduction of multilayered bandages was much better than in results observed in taping groups. The KT appeared to be ineffective at secondary lymphedema after breast cancer treatment. The single-blind, controlled pilot study results suggest that K-tape could not replace the bandage, and at this moment it must not be an alternative choice for the breast cancer-related lymphedema patient. The trial is registered with ACTRN12613001173785.

  9. Investigation on the electromechanical properties of RCE-DR GdBCO CC tapes under transversely applied load

    REBCO coated conductor (CC) tapes with superior mechanical and electromechanical properties are preferable in applications such as superconducting coils and magnets. The CC tapes should withstand factors that can affect their performance during fabrication and operation of its applications. In coil applications, CC tapes experience different mechanical constraints such as tensile or compressive stresses. Recently, the critical current (Ic) degradation of CC tapes used in coil applications due to delamination were already reported. Thermal cycling, coefficient of thermal expansion mismatch among constituent layers, screening current, etc. can induce excessive transverse tensile stresses that might lead to the degradation of Ic in the CC tapes. Also, CC tapes might be subjected to very high magnetic fields that induce strong Lorentz force which possibly affects its performance in coil applications. Hence, investigation on the delamination mechanism of the CC tapes is very important in coiling, cooling, operation and design of prospect applications. In this study, the electromechanical properties of REBCO CC tapes fabricated by reactive co-evaporation by deposition and reaction (RCE-DR) under transversely applied loading were investigated. Delamination strength of the CC tape was determined using the anvil test. The Ic degraded earlier under transverse tensile stress as compared to that under compressive one.

  10. Observation of curious spiral growth features in Tl doped Hg bearing high temperature superconducting tapes

    Anjana Asthana; O N Srivastava

    2001-12-01

    Synthesis of H(Tl)Ba2Ca2Cu3O8+ superconducting tapes have been accomplished by annealing the precursor tape, Ba2Ca2Cu3O (fabricated by doctor blade tape casting technique) in an environment of H(Tl) vapour. Characterization of superconducting HTSC tape sample was carried out through XRD, TEM, SEM and R–T measurements. Surface morphological investigations of the as-synthesized H(Tl)Ba2Ca2Cu3O8+ HTSC tapes by scanning electron microscope have shown the occurrence of curious growth characteristics resembling spiral like features. These growth spirals encompass nearly the whole grain suggesting that spiral growth led to the formation of small crystal like grains of superconducting material H(Tl)Ba2Ca2Cu3O8+. The likely mechanism for the generation of these screw dislocations has been elucidated in terms of incoherent coalescence of growth fronts formed from H(Tl):1223 and H(Tl):1234 nuclei.

  11. Heat Transfer Simulation to Liquid Nitrogen from HTS Tapes at the Overload Currents

    Zubko, V. V.; Ryabov, S. M.; Fetisov, S. S.; Vysotsky, V. S.

    Knowledge of HTS materials behavior at overload currents is important to design fault current limiters or fault protection systems of electro-technical devices. There are sharp voltage peaks and voltage oscillations during rectangular current pulses (DC current) on HTS tapes cooled by liquid nitrogen. It is common knowledge that a homogeneous liquid can withstand certain amount of overheating before switching to the boiling phase. In the liquid nitrogen during the increase of the heat flux there is superheating (temperature overshoot) and boiling hysteresis takes place. We explain voltage peaks and voltage oscillations by the hysteresis phenomenon in boiling nitrogen during the increase and decrease of the heat flux in the nitrogen which is a result of current redistribution in the HTS tapes. Based on the measurements of voltage and temperature of the HTS tapes during current overload and numerical analysis of the process we estimated the heat-transfer characteristics from the HTS tapes to liquid nitrogen. We also obtained the information about limiting superheating of the liquid nitrogen. The influence of covers of the HTS tapes on superheating of the nitrogen is also discussed.

  12. The Current Situation of the Study on Twisted Tape Inserts in Pipe Exchangers

    Changzhong Man; Chong Wang; Jinyu Yao

    2014-01-01

    Heat transfer enhancement is used in many applications including heat exchangers, air conditioning, and refrigeration systems;hence many researchers have conducted experimental and numerical researches on heat transfer enhancement and have developed various techniques and methods. As a passive heat transfer technique, twisted tapes are widely used in various industries for their cost savings, lower maintenance requirements and the fact that they are easily set up. This paper introduces the principle of heat transfer enhancement of twisted tapes and reviews some of the experimental works done by researchers on this technique in recent years. The variously modified twisted tape inserts are widely researched and used to enhance heat transfer efficiency for heat exchangers. Twisted tapes perform better in low Re conditions and in square tubes. However, they could also cause higher pressure drops. Twisted tapes have great potential and profound implications if they can be used in traditional heat exchangers. Besides this, some correlations between the Nusselt number and friction factors are presented in this paper.

  13. Heat transfer and thermal performance characteristics of heat exchanger tube fitted with perforated twisted-tapes

    Thianpong, Chinaruk; Eiamsa-ard, Petpices; Eiamsa-ard, Smith

    2012-06-01

    Twisted tape insert was applied as a swirling flow generator for the passive heat transfer enhancement in the present work. The influences of the perforated twisted tapes (PTs) on the heat transfer, pressure loss and thermal performance characteristics were investigated experimentally. The experiments were performed under uniform wall heat flux condition by using PTs with y/W = 3, 4 and 5, d/W = 0.11, 0.14 and 0.17 and s/W = 0.4, 0.6 and 0.8 where y is a twist length, d is a perforation hole diameter, s is a spacing between holes (pitch) and W is a tape width. The experimental results reveal that Nusselt number increased with decreasing s/W and y/W and increasing d/W. For the present range, the maximum heat transfer was obtained by utilizing the tape with s/W = 0.4, d/W = 0.17 and y/W = 3, which is higher than those obtained from the plain tube with and without typical twisted tape by around 27.4 and 86.7%, respectively. In addition, the empirical correlations for Nusselt number, friction factor and thermal performance are also proposed in the present paper.

  14. The current situation of the study on twisted tape inserts in pipe exchangers

    Man, Changzhong; Wang, Chong; Yao, Jinyu

    2014-12-01

    Heat transfer enhancement is used in many applications including heat exchangers, air conditioning, and refrigeration systems; hence many researchers have conducted experimental and numerical researches on heat transfer enhancement and have developed various techniques and methods. As a passive heat transfer technique, twisted tapes are widely used in various industries for their cost savings, lower maintenance requirements and the fact that they are easily set up. This paper introduces the principle of heat transfer enhancement of twisted tapes and reviews some of the experimental works done by researchers on this technique in recent years. The variously modified twisted tape inserts are widely researched and used to enhance heat transfer efficiency for heat exchangers. Twisted tapes perform better in low Re conditions and in square tubes. However, they could also cause higher pressure drops. Twisted tapes have great potential and profound implications if they can be used in traditional heat exchangers. Besides this, some correlations between the Nusselt number and friction factors are presented in this paper.

  15. Effects of hot rolling on powder-in-tube BSCCO tapes

    High critical currents have been obtained in Bi-Sr-Ca-Cu-O (BSCCO) by the powder-in-tube approach. Because of the inherent structural anisotropy of the Bi-based high-Tc superconducting materials, high-(Jc) is obtained only when the wires are subsequently rolled into rectangularly cross-sectioned tapes. Previously, intermediate annealing was employed to maintain ductility in the silver, with a high-temperature sintering just before the final rolling in order to form the high-Tc superconducting phase. Here, the authors report on the effects of hot rolling at various temperatures for the final rolling of powder-in-tube BSCCO-2212 tapes. Hot rolling was accomplished by preheating the rolls with infrared heaters and rolling the tapes directly from the furnace. The highest current densities were obtained by a final hot rolling of the 2212 tapes at 420 degrees C, with the furnace temperature at 750 degrees C (the highest temperature studied). Results showed that the enhancement of (Jc) was due to the improvement of grain alignment, as well as to the reduction of the size and fraction of Bi-free phases during the final heat treatment. Furthermore, an analytical model of the hot-rolling process that has been developed illustrates the importance of preheating the tapes and heating the rolls

  16. Acute Effects of Kinesio Taping on Knee Extensor Peak Torque and Stretch Reflex in Healthy Adults.

    Yeung, Simon S; Yeung, Ella W

    2016-01-01

    Kinesio Tex tape (KT) is used to prevent and treat sports-related injuries and to enhance muscle performance. It has been proposed that the direction of taping may either facilitate or inhibit the muscle by having different effects on cutaneous receptors that modulate excitability of the motor neurons. This study had 2 goals. First, we wished to determine if KT application affects muscle performance and if the method of application facilitates or inhibits muscle performance. This was assessed by measuring isokinetic knee extension peak torque in the knee extensor. Second, we assessed neurological effects of taping on the excitability of the motor neurons by measuring the reflex latency and action potential by electromyography (EMG) in the patellar reflex. The study was a single-blind, placebo-controlled crossover trial with 28 healthy volunteers with no history of knee injuries. Participants received facilitative KT treatment, inhibitory KT treatment, or Hypafix taping of the knee extensor. There were significant differences in the peak torque between 3 treatments (F(2,54) = 4.873, P taping applications. The findings suggest that the direction of KT application over the muscle has specific effects on muscle performance. Given the magnitude of effect is small, interpretation of clinical significance should be considered with caution. The underlying mechanism warrants further investigation. PMID:26825916

  17. Critical current of laminated and non-laminated BSCCO superconducting composite tape under bending strain

    Matsubayashi, H., E-mail: shojiro.ochiai@materials.mbox.media.kyoto-u.ac.j [Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Mukai, Y.; Arai, T.; Shin, J.K.; Ochiai, S.; Okuda, H. [Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501 (Japan); Osamura, K. [Research Institute for Applied Sciences, Sakyo-ku, Kyoto 606 8202 (Japan); Otto, A.; Malozemoff, A. [American Superconductor Corporation, 64 Jackson Road, Devens, MA 01434-4020 (United States)

    2009-10-15

    It has been reported that, when the (Bi,Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} (hereafter noted as BSCCO)/Ag/Ag-alloy tape is laminated with stainless steel, the tensile strain tolerance of critical current is much improved. In this study, using the non-laminated and laminated BSCCO composite tapes fabricated at American Superconductor Corporation, the influences of lamination on the critical current and its distribution under bending strain were studied. The analysis of the measured variation of average critical current with bending strain based on the damage evolution model revealed that the laminated stainless steel acts to suppress the fracture of the BSCCO filaments. The experimentally observed high critical current retention of the laminated tape up to high bending strain was accounted for by the suppression of fracture of BSCCO filaments stated above and enhancement of the compressive residual strain in the filaments. The distributions of local critical current in non-laminated and laminated composite tape were described well by the three-parameter Weibull distribution function within the bending strain lower than 1.1%. The coefficient of variation of distribution of critical current of the laminated tape was similar to that of the non-laminated one under the same strain distribution in the core.

  18. Critical current of laminated and non-laminated BSCCO superconducting composite tape under bending strain

    Matsubayashi, H.; Mukai, Y.; Arai, T.; Shin, J. K.; Ochiai, S.; Okuda, H.; Osamura, K.; Otto, A.; Malozemoff, A.

    2009-10-01

    It has been reported that, when the (Bi,Pb) 2Sr 2Ca 2Cu 3O x (hereafter noted as BSCCO)/Ag/Ag-alloy tape is laminated with stainless steel, the tensile strain tolerance of critical current is much improved. In this study, using the non-laminated and laminated BSCCO composite tapes fabricated at American Superconductor Corporation, the influences of lamination on the critical current and its distribution under bending strain were studied. The analysis of the measured variation of average critical current with bending strain based on the damage evolution model revealed that the laminated stainless steel acts to suppress the fracture of the BSCCO filaments. The experimentally observed high critical current retention of the laminated tape up to high bending strain was accounted for by the suppression of fracture of BSCCO filaments stated above and enhancement of the compressive residual strain in the filaments. The distributions of local critical current in non-laminated and laminated composite tape were described well by the three-parameter Weibull distribution function within the bending strain lower than 1.1%. The coefficient of variation of distribution of critical current of the laminated tape was similar to that of the non-laminated one under the same strain distribution in the core.

  19. Comparison of efficacy of kinesiological taping and subacromial injection therapy in subacromial impingement syndrome.

    Subaşı, Volkan; Çakır, Tuncay; Arıca, Zuhal; Sarıer, Rahime Nur; Filiz, Meral Bilgilisoy; Doğan, Şebnem Koldaş; Toraman, Naciye Füsun

    2016-03-01

    The aim of the study was to compare the efficacy of kinesiological taping and subacromial injection therapy in patients with subacromial impingement syndrome (SIS). Seventy patients diagnosed with SIS were randomly assigned to group 1 (n = 35, injection group) or group 2 (n = 35, kinesiological taping group). Betamethasone plus prilocaine was injected to subacromial space in the patients in group 1. In group 2, tape was applied three times for a period of five consecutive days with a 2-day recovery interval. A 3-month exercise program was prescribed for both groups including stretching and strengthening exercises. All patients were assessed at baseline and at 1 and 3 months post-intervention. Assessments were made by visual analog scale (VAS) for pain, range of motion (ROM) measurements, specific tests, and Shoulder Pain and Disability Index (SPADI). Significant differences were detected in VAS and SPADI scores as well as ROM measurements in both groups when compared to baseline (p > 0.05). No significant differences were detected between the groups except for active flexion degree in favor of group 1 (p = 0.004). Both kinesiological taping and steroid injection in conjunction with an exercise program were found to be effective in the treatment of SIS. Kinesio taping may be an alternative treatment option in the rehabilitation of SIS especially when a non-invasive technique is needed. PMID:25403253

  20. Improving controllable adhesion on both rough and smooth surfaces with a hybrid electrostatic/gecko-like adhesive

    Ruffatto, Donald; Parness, Aaron; Spenko, Matthew

    2014-01-01

    This paper describes a novel, controllable adhesive that combines the benefits of electrostatic adhesives with gecko-like directional dry adhesives. When working in combination, the two technologies create a positive feedback cycle whose adhesion, depending on the surface type, is often greater than the sum of its parts. The directional dry adhesive brings the electrostatic adhesive closer to the surface, increasing its effect. Similarly, the electrostatic adhesion helps engage more of the di...

  1. Nucleation and growth of cadherin adhesions

    Cell-cell contact formation relies on the recruitment of cadherin molecules and their anchoring to actin. However, the precise chronology of events from initial cadherin trans-interactions to adhesion strengthening is unclear, in part due to the lack of access to the distribution of cadherins within adhesion zones. Using N-cadherin expressing cells interacting with N-cadherin coated surfaces, we characterized the formation of cadherin adhesions at the ventral cell surface. TIRF and RIC microscopies revealed streak-like accumulations of cadherin along actin fibers. FRAP analysis indicated that engaged cadherins display a slow turnover at equilibrium, compatible with a continuous addition and removal of cadherin molecules within the adhesive contact. Association of cadherin cytoplasmic tail to actin as well as actin cables and myosin II activity are required for the formation and maintenance of cadherin adhesions. Using time lapse microscopy we deciphered how cadherin adhesions form and grow. As lamellipodia protrude, cadherin foci stochastically formed a few microns away from the cell margin. Neo-formed foci coalesced aligned and coalesced with preformed foci either by rearward sliding or gap filling to form cadherin adhesions. Foci experienced collapse at the rear of cadherin adhesions. Based on these results, we present a model for the nucleation, directional growth and shrinkage of cadherin adhesions

  2. Experimental investigations on the soldering performances of the joints for Bi-2223/Ag tapes

    Zou, Chunlong, E-mail: clzou@ipp.ac.cn; Son, Yuntao; Huang, Xiongyi; Liu, Chenglian; Khan, Shahab Ud-Din; Weibin, Xi; Kun, Lu

    2015-01-15

    Highlights: • Bi-2223/Ag jointed tapes were fabricated by five solder. • The solder have a different melting point. • The joint resistive were evaluated at liquid nitrogen. • Two different welding technique were compared. - Abstract: In this paper, we have fabricated Bi-2223/Ag jointed tapes and evaluated its joint resistance at liquid nitrogen temperature (77 K). The tapes were joined by the conventional resistive joint method using five kinds of solders with different melting points. The lower melting point Bi–Sn–Pb and high melting point Sn–Ag–Cu solders have lower joint resistances. In addition, two different joining processes were compared by joining the copper sheet. The joint resistances were measured at lower temperature and the resistance appears comparable to each other. It indicated that the direct-jointing is more effective method for high temperature superconductor (HTS) joining.

  3. Further understanding of twisted tape effects as tube insert for heat transfer enhancement

    Abu-Khader, Mazen M. [Al-Balqa Applied University, Department of Chemical Engineering, FET, Amman (Jordan)

    2006-12-15

    Tube inserts are used as heat transfer enhancement tool for both retrofit and new design of shell and tube heat exchangers. This paper discusses and reviews the characteristics and performance of twisted tapes. The theory and application are also addressed. Industrial case study was selected to illustrate the behaviour effect that the twisted tapes impose at various laminar, transition and turbulent flow regions. This effect was demonstrated by changing the inside tube diameter and twist ratio through evaluating selected exchanger design parameters such as: local heat transfer coefficient, friction factor and pressure drop. Testing the exponent powers for Re and Pr at both laminar and turbulent regions were carried out. General design considerations are outlined for the use of twisted tapes in shell and tube heat exchangers. (orig.)

  4. Further understanding of twisted tape effects as tube insert for heat transfer enhancement

    Abu-Khader, Mazen M.

    2006-12-01

    Tube inserts are used as heat transfer enhancement tool for both retrofit and new design of shell and tube heat exchangers. This paper discusses and reviews the characteristics and performance of twisted tapes. The theory and application are also addressed. Industrial case study was selected to illustrate the behaviour effect that the twisted tapes impose at various laminar, transition and turbulent flow regions. This effect was demonstrated by changing the inside tube diameter and twist ratio through evaluating selected exchanger design parameters such as: local heat transfer coefficient, friction factor and pressure drop. Testing the exponent powers for Re and Pr at both laminar and turbulent regions were carried out. General design considerations are outlined for the use of twisted tapes in shell and tube heat exchangers.

  5. Correlation of coupling losses and time constants in superconducting Bi-2223 tapes

    Ac-loss and coupling current time constant measurements were performed with a large variety of Bi-2223 tape conductors at 4.2 and at 77 K. Single tapes in a perpendicular field as well as stacks of tapes in perpendicular and parallel fields were investigated. The frequency dependence of the coupling loss curve has a maximum which is set in correlation to the separately measured time constant. The theoretical treatment of the time constant and loss measurements using a slab model shows a very good agreement between the position of loss maxima and measured time constants. Eddy currents in the silver matrix, which are described by a second smaller time constant, contribute substantially to the losses in the higher frequency range and may lead to the appearance of a second maximum in the loss curve

  6. Skin impression with acetate tape in Demodex canis and Scarcoptes scabiei var. vulpes diagnosis

    D.T. Pereira

    2015-02-01

    Full Text Available This study compares the efficacy of skin impression with acetate tape and the deep skin scraping test to find D. canis and S. scabiei in dogs. During six months, 134 samples were collected by both techniques from 115 dogs treated at the dermatology service of the Veterinary Hospital of the Federal University of Santa Maria (HVU-UFSM. Of these patients, 27 had demodicosis and 12 had scabies. The impression with acetate tape test (ITT was shown to be significantly superior to the deep skin scraping test (DSST in finding D. canis and S. scabiei mites (p = 0.007. Based on our results we could conclude that acetate tape impression is a reliable method for diagnosing and monitoring therapy of dermatopathies caused by mites and can be used to replace the traditional deep skin scraping method. In addition, since it is less traumatic for the dog, this method shows more acceptance by the owner.

  7. Experiment attributes to establish tube with twisted tape insert performance cooling plasma facing components

    The modeling capability for tubes with twisted tape inserts is reviewed with reference to the application of cooling plasma facing components in magnetic confinement fusion devices. The history of experiments examining the cooling performance of tubes with twisted tape inserts is reviewed with emphasis on the manner of heating, flow stability limits and the details of the test section and fluid delivery system. Models for heat transfer, burnout, and onset of net vapor generation in straight tube flows and tube with twisted tape are compared. As a result, the gaps in knowledge required to establish performance limits of the plasma facing components are identified and attributes of an experiment to close those gaps are presented

  8. Position dependence of the deformation state of the ceramic core in Ag/Bi-2223 tapes

    The deformation behaviour of the Bi-2223 ceramic core in an Ag/Bi-2223 composite, which is crucial for obtaining a high critical current density, has been investigated for the Ag/Bi-2223 composites where the Bi-2223 filament was located at different positions in the silver matrix. For the cores located at the mid-plane of the tape, the thickness strain and the lateral strain were large. For the cores located near the tape surface, the thickness strain and lateral strain were minimized. In a 19-filament Ag/Bi-2223 tape, the deformation state of the Bi-2223 core was less dependent on core position. It has been observed that the deformation behaviour of ceramic cores was very dependent on the core position in the silver matrix as well as the existence of the neighbouring ceramic cores. (author)

  9. Critical current of magnesium diboride/stainless steel composite tapes under tensile or compressive strains

    We investigate the influence of mechanical strain on the critical current (Ic) for magnesium diboride/stainless steel (SUS316) superconducting tapes. The tensile axial strain along the tape length is successfully induced in the sample by using a U-shaped holder made of stainless steel (SUS304). Two samples are examined at 4.2 K and 5 T (B is applied perpendicular to the tape surface). The Ic-strain relation can be divided into two regions. Rapid and large degradation occurs at a strain exceeding ∼0.5%. On the other hand, Ic change is reversible against strain change between -0.4% (compressive strain) and 0.4%. Ic increases and decreases with increasing and decreasing external strain in this region, respectively. The critical temperature (Tc) also changes with the change in the external strain; Tc increases with increasing external strain. The reversible change in Ic originates in the change of Tc

  10. Effect of kinesio taping on the isokinetic muscle function in football athletes with a knee injury.

    Hong, SoonKwon; Shim, JeMyung; Kim, SungJoong; Namkoong, Seung; Roh, HyoLyun

    2016-01-01

    [Purpose] The purpose of this study was to determine the difference in isokinetic muscle function in football athletes with a knee injury with and without kinesio taping. [Subjects] The subjects for this study were 10 football athletes (males) with a knee injury. [Methods] Measurements were performed by using Cybex dynamometer under uniform motion before and after the application of kinesio tape to the quadriceps and hamstring muscle. Maximal concentric knee extension and flexion at three angular velocities (60°/s, 120°/s, and 180°/s) were measured. [Results] A significant difference was found in peak torque and total work of the flexion at 120°/s and 180°/s, as well as in the average power of extension at 180°/s. [Conclusion] Though it is not the main therapy for muscle function in football athletes with injury, kinesio taping was an effective adjunct therapy. PMID:26957761

  11. Dispersion and rheological studies of Y–PSZ tape casting slurry

    K G Vasantha Kumari; K Sasidharan; M Sapna; Raghu Natarajan

    2005-04-01

    Different solvent systems in combination with three different dispersants were tried to find out the suitable solvent–dispersant combination, which give optimum dispersion of PSZ. Based on sedimentation, viscosity and rheology characteristics, zeotropic ethanol : xylene with a ratio of 50 : 50 along with 0.5 wt% phosphate ester was found to be the best solvent and dispersant combination. Optimized tape casting slurry was prepared using PEG 600 and BBP as plasticizers and PVB as the binder. Cyclohexanone was used as the homogenizer. The optimized slurry composition with 58% solid loading exhibited shear-thinning pseudoplastic rheological behaviour. Y–PSZ tapes of ∼ 50 m thickness free from visible defects were cast with a green tape density of 55%.

  12. Selected Operations, Algorithms, and Applications of n-Tape Weighted Finite-State Machines

    Kempe, André

    2011-01-01

    A weighted finite-state machine with n tapes (n-WFSM) defines a rational relation on n strings. It is a generalization of weighted acceptors (one tape) and transducers (two tapes). After recalling some basic definitions about n-ary weighted rational relations and n-WFSMs, we summarize some central operations on these relations and machines, such as join and auto-intersection. Unfortunately, due to Post's Correspondence Problem, a fully general join or auto-intersection algorithm cannot exist. We recall a restricted algorithm for a class of n-WFSMs. Through a series of practical applications, we finally investigate the augmented descriptive power of n-WFSMs and their join, compared to classical transducers and their composition. Some applications are not feasible with the latter. The series includes: the morphological analysis of Semitic languages, the preservation of intermediate results in transducer cascades, the induction of morphological rules from corpora, the alignment of lexicon entries, the automatic ...

  13. Improvement of ex-situ MgB2 powder in tube processed tapes using MgH2 powder

    The critical current density, J c, in applied magnetic field, B, of MgB2 tape fabricated by a powder-in-tube (PIT) method via ex-situ process was dramatically improved by using MgB2 powder made from MgH2 and amorphous boron. The starting powder was obtained from the core of an MgB2 tape prepared via an in-situ process of PIT method. The highest J c at 10 T and 4.2 K (4.5 x 103 A/cm2) exceeds not only that of conventional ex-situ processed MgB2 tape made from commercial MgB2 powder (2), but also that of in-situ processed tape (3.4 x 103 A/cm2). This drastic improvement in J c-B property of ex-situ MgB2 tape is considered to be due to the enhancement in the B irr of MgB2 core. On the other hand, we also found that the slope of J c-B line was different between ex-situ MgB2 tape and in-situ processed tape, and it resulted in the higher J c of ex-situ processed tape than that of in-situ processed tape. This difference is considered to originate in the difference of the effective pinning mechanism between in-situ processed and ex-situ processed tapes, and the J c-B property of ex-situ processed tape is affected by the introduction of extra lattice distortion via mechanical pressure of PIT process

  14. Laser patterning: A new approach to measure local magneto-transport properties in multifilamentary superconducting tapes

    Sanchez Valdes, C.F. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Perez-Penichet, C. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Noda, C. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba); Arronte, M. [Laser Technology Laboratory, CICATA-IPN, ALTAMIRA, Altamira 89600, TAMPS (Mexico); Batista-Leyva, A.J. [Department of General Physics and Mathematics, InSTEC, 10400 Havana (Cuba); Haugen, O. [Department of Physics, University of Oslo, Blindern, N-0316 Oslo (Norway); Johansen, T.H. [Department of Physics, University of Oslo, Blindern, N-0316 Oslo (Norway); Han, Z. [Applied Superconductivity Research Center, Department of Physics, Tsinghua University, Beijing 100084 (China); Altshuler, E. [Superconductivity Laboratory, Magnetism Laboratory, IMRE-Physics Faculty, University of Havana, 10400 Havana (Cuba)]. E-mail: ea@infomed.sld.cu

    2007-09-15

    The determination of inter- and intra-filament characteristics in superconducting composites such as BSCCO-Ag tapes is of great importance for material evaluation towards applications. Most attempts to separate the two contributions have relied on indirect methods based on magnetic measurements such as SQUID or magneto-optic imaging techniques. Here we show that laser patterning of superconducting BSCCO-Ag tapes constitutes a simple approach to measure local transport properties in a direct way, even able to separate inter- and intra-filament contributions to the overall transport behavior of the sample.

  15. Laser patterning: A new approach to measure local magneto-transport properties in multifilamentary superconducting tapes

    The determination of inter- and intra-filament characteristics in superconducting composites such as BSCCO-Ag tapes is of great importance for material evaluation towards applications. Most attempts to separate the two contributions have relied on indirect methods based on magnetic measurements such as SQUID or magneto-optic imaging techniques. Here we show that laser patterning of superconducting BSCCO-Ag tapes constitutes a simple approach to measure local transport properties in a direct way, even able to separate inter- and intra-filament contributions to the overall transport behavior of the sample

  16. The Improved Transient Stabilities of HTS Coils by Removing the Insulation and Inserting the Metal Tapes

    Kim, S. B.; Kajikawa, H.; Ikoma, H.; Joo, J. H.; Jo, J. M.; Han, Y. J.; Jeong, H. S.

    NMR/MRI magnets have a protection device to prevent the damages due to a quench. On the other hand, the protection device design of HTS coils or magnets are very difficult because it has a very low normal zone propagation velocity (NZPV) and complicate behaviors of quench. We have studied the methods to improve the self-protection ability of HTS coils by removing the turn-to-turn insulation and inserting the metal tape instead of insulation. In this paper, the improved transient stabilities and self- protection abilities of HTS coils by removing the insulation and inserting metal tapes will be presented by minimum quench energy (MQE).

  17. Functionally Graded Ceramics Fabricated with Side-by-Side Tape Casting for Use in Magnetic Refrigeration

    Bulatova, Regina; Bahl, Christian; Andersen, Kjeld Bøhm;

    2015-01-01

    Functionally graded ceramic tapes have been fabricated by a side-by-side tape casting technique. This study shows the possibility and describes the main principles of adjacent coflow of slurries resulting in formation of thin plates of graded ceramic material. Results showed that the small...... distinct identification of the interface region and analysing the degree of cross-interface diffusion, the isothermal entropy change was measured by a vibrating sample magnetometer as the magnetic transition temperature (Curie temperature) is very sensitive to the dopant level in ceramics. Also the purpose...

  18. The influence of the bending process on the critical current of high-Tc superconducting tapes

    The results of measurements of the influence of bending strain up to 1% on the current-voltage characteristics of high Tc superconducting tapes of Bi-2223 type are presented. Theoretical explanation of this effect, taking into account the creation of mechanical micro-cracks inside the filaments during bending, is discussed. The mechanism leading to the variation of the current-voltage characteristics and the decrease of the critical current as a result of the bending strain is considered taking into account the superposition of the percolation and flux creep effects. The critical current anisotropy in high temperature superconducting tapes in this model is also predicted

  19. Mechanical properties of Ag-clad Bi-based superconducting composite tapes

    The critical strains for tensile and bend tests show a dependence on the tape thickness and Ag/oxide volume ratio. This is attributable to the improved strength and flexibility of the special interfacial layer between Ag and oxides formed during thermomechanical processes. Microstructure studies reveal that at a strain greater than the critical strain, there are cracks in the oxide core, while the interfacial layer near the Ag sheath is still intact. Multifilamentary configuration is desirable for improving the strength and flexibility of the Ag-clad Bi-based tapes. (orig.)

  20. The Effect of Kinesio Taping in Forward Bending of the Lumbar Spine

    Lemos, Thiago Vilela; Albino, Anna Carolina Gonçalves; Matheus, Joao Paulo C.; Barbosa, Aurélio de Melo

    2014-01-01

    [Purpose] The aim of this study was to evaluate the influence of a lumbar fascia Kinesio Taping® technique forward bending range of motion. [Subjects and Methods] This was a longitudinal study with a randomized clinical trial composed of 39 subjects divided into three groups (control, Kinesio Without Tension-KWT, and Kinesio Fascia Correction-KFC). The subjects were assessed by Schober and fingertip-to-floor tests and left the tape in place for 48 hours before being reassessed 24 hours, 48 ho...