WorldWideScience

Sample records for teflon chip holding

  1. Method of mechanical holding of cantilever chip for tip-scan high-speed atomic force microscope

    Energy Technology Data Exchange (ETDEWEB)

    Fukuda, Shingo [Department of Physics, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan); Uchihashi, Takayuki; Ando, Toshio [Department of Physics, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan); Bio-AFM Frontier Research Center, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan); Core Research for Evolutional Science and Technology of the Japan Science and Technology Agency, 7 Goban-cho, Chiyoda-ku, Tokyo 102-0076 (Japan)

    2015-06-15

    In tip-scan atomic force microscopy (AFM) that scans a cantilever chip in the three dimensions, the chip body is held on the Z-scanner with a holder. However, this holding is not easy for high-speed (HS) AFM because the holder that should have a small mass has to be able to clamp the cantilever chip firmly without deteriorating the Z-scanner’s fast performance, and because repeated exchange of cantilever chips should not damage the Z-scanner. This is one of the reasons that tip-scan HS-AFM has not been established, despite its advantages over sample stage-scan HS-AFM. Here, we present a novel method of cantilever chip holding which meets all conditions required for tip-scan HS-AFM. The superior performance of this novel chip holding mechanism is demonstrated by imaging of the α{sub 3}β{sub 3} subcomplex of F{sub 1}-ATPase in dynamic action at ∼7 frames/s.

  2. Microfluidic Pumps Containing Teflon [Trademark] AF Diaphragms

    Science.gov (United States)

    Willis, Peter; White, Victor; Grunthaner, Frank; Ikeda, Mike; Mathies, Richard A.

    2009-01-01

    Microfluidic pumps and valves based on pneumatically actuated diaphragms made of Teflon AF polymers are being developed for incorporation into laboratory-on-a-chip devices that must perform well over temperature ranges wider than those of prior diaphragm-based microfluidic pumps and valves. Other potential applications include implanted biomedical microfluidic devices, wherein the biocompatability of Teflon AF polymers would be highly advantageous. These pumps and valves have been demonstrated to function stably after cycling through temperatures from -125 to 120 C. These pumps and valves are intended to be successors to similar prior pumps and valves containing diaphragms made of polydimethylsiloxane (PDMS) [commonly known as silicone rubber]. The PDMS-containing valves ae designed to function stably only within the temperature range from 5 to 80 C. Undesirably, PDMS membranes are somwehat porous and retain water. PDMS is especially unsuitable for use at temperatures below 0 C because the formation of ice crystals increases porosity and introduces microshear.

  3. Hot Embossing for Whole Teflon Superhydrophobic Surfaces

    Directory of Open Access Journals (Sweden)

    Jie Li

    2018-06-01

    Full Text Available In this paper, we report a simple fabrication process of whole Teflon superhydrophobic surfaces, featuring high-aspect-ratio (>20 nanowire structures, using a hot embossing process. An anodic aluminum oxide (AAO membrane is used as the embossing mold for the fabrication of high-aspect-ratio nanowires directly on a Teflon substrate. First, high-aspect-ratio nanowire structures of Teflon are formed by pressing a fluorinated ethylene propylene (FEP sheet onto a heated AAO membrane at 340 °C, which is above the melting point of FEP. Experimental results show that the heating time and aspect ratios of nanopores in the AAO mold are critical to the fidelity of the hot embossed nanowire structures. It has also been found that during the de-molding step, a large adhesive force between the AAO mold and the molded FEP greatly prolongs the length of nanowires. Contact angle measurements indicate that Teflon nanowires make the surface superhydrophobic. The reliability and robustness of superhydrophobicity is verified by a long-term (~6.5 h underwater turbulent channel flow test. After the first step of hot-embossing the Teflon nanowires, microstructures are further superimposed by repeating the hot embossing process, but this time with microstructured silicon substrates as micromolds and at a temperature lower than the melting temperature of the FEP. The results indicate that the hot embossing process is also an effective way to fabricate hierarchical micro/nanostructures of whole Teflon, which can be useful for applications of Teflon material, such as superhydrophobic surfaces.

  4. Radon daughter plate-out onto Teflon

    Science.gov (United States)

    Morrison, E. S.; Frels, T.; Miller, E. H.; Schnee, R. W.; Street, J.

    2018-01-01

    Radiopure materials for detector components in rare event searches may be contaminated after manufacturing with long-lived 210Pb produced by the decay of atmospheric radon. Charged radon daughters deposited on the surface or implanted in the bulk of detector materials have the potential to cause noticeable backgrounds within dark matter regions of interest. Understanding the mechanics governing these background signals is therefore a paramount concern in dark matter experiments in order to distinguish a real signal from internal detector backgrounds. Teflon (i.e. PTFE) is a specific material of interest because it makes up the walls of the inner detector of many liquid noble detectors such as the LUX-ZEPLIN experiment. The rate of radon daughter plate-out onto Teflon can be orders of magnitude larger than the plate-out rate onto other materials. Mitigation of plate-out onto Teflon and steel by proximity to other materials is demonstrated.

  5. Performance of silvered Teflon (trademark) thermal control blankets on spacecraft

    Science.gov (United States)

    Pippin, Gary; Stuckey, Wayne; Hemminger, Carol

    1993-01-01

    Silverized Teflon (Ag/FEP) is a widely used passive thermal control material for space applications. The material has a very low alpha/e ratio (less than 0.1) for low operating temperatures and is fabricated with various FEP thicknesses (as the Teflon thickness increases, the emittance increases). It is low outgassing and, because of its flexibility, can be applied around complex, curved shapes. Ag/FEP has achieved multiyear lifetimes under a variety of exposure conditions. This has been demonstrated by the Long Duration Exposure Facility (LDEF), Solar Max, Spacecraft Charging at High Altitudes (SCATHA), and other flight experiments. Ag/FEP material has been held in place on spacecraft by a variety of methods: mechanical clamping, direct adhesive bonding of tapes and sheets, and by Velcro(TM) tape adhesively bonded to back surfaces. On LDEF, for example, 5-mil blankets held by Velcro(TM) and clamping were used for thermal control over 3- by 4-ft areas on each of 17 trays. Adhesively bonded 2- and 5-mil sheets were used on other LDEF experiments, both for thermal control and as tape to hold other thermal control blankets in place. Performance data over extended time periods are available from a number of flights. The observed effects on optical properties, mechanical properties, and surface chemistry will be summarized in this paper. This leads to a discussion of performance life estimates and other design lessons for Ag/FEP thermal control material.

  6. An Experimental Study on Steel and Teflon Squeeze Film Dampers

    Directory of Open Access Journals (Sweden)

    Asad A. Khalid

    2006-01-01

    Full Text Available In this paper, the vibration analysis on Teflon and steel squeeze film dampers has been carried out. At different frequency ranges, vibration amplitude and the resonance frequency are measured. The eccentricity ratio at resonance speed has been determined. Results show that the vibration amplitude of the steel damper is 10% less at resonance compared with the Teflon damper. On the other hand, saving weight of 36% has been achieved by using the Teflon damper.

  7. Study of teflon pads as high doses dosemeters

    International Nuclear Information System (INIS)

    Teixeira, Maria Ines; Caldas, Linda V.E.

    2013-01-01

    The aim of this work is to study the Teflon, which is used as a binder in the manufacture of dosimetric tablets, for the feasibility of this material as high dose dosemeter. In this paper we used the technique of thermally stimulated luminescence (OSL) to characterize the dosimetric properties of Teflon. Teflon samples were exposed to different doses of radiation, using a source of gamma radiation ( 60 Co). It was obtained dose-response curve between 100 Gy to 50 kGy and reproducibility of OSL response. The preliminary results show that Teflon is a useful material to high dose dosimetry

  8. Teflon injections in post-prostatectomy incontinence

    DEFF Research Database (Denmark)

    Osther, P J; Røhl, H F

    1988-01-01

    Twenty-five males with post-prostatectomy incontinence due to sphincter damage underwent transperineal or transurethral Teflon injections. The results were classified into three grades: good, moderate, and poor. Good or moderate results were obtained in 24%. No major immediate complications...... or longterm side-effects were observed. This intervention is associated with a minimum of discomfort for the patient and hospitalization can be limited to 48-72 hours. The results are not so good as those obtained in female incontinence, and the procedure cannot be recommended as first choice treatment...... in patients with post-prostatectomy incontinence, but because of the simplicity of the procedure, it is considered to be a valuable alternative in patients not suitable for prosthetic surgery....

  9. Teflon pastille use in high dose dosimetry; Utilizacao de pastilhas de teflon em dosimetria de doses altas

    Energy Technology Data Exchange (ETDEWEB)

    Teixeira, Maria Ines [Associacao Educacional Nove de Julho (UNINOVE), Sao Paulo, SP (Brazil); Caldas, Linda V.E., E-mail: miteixeira@ipen.b, E-mail: lcaldas@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-10-26

    This paper study the Teflon, which is used as aglomerant in the confection of dosimetric pastilles, for the viabilization of this material as high dose dosimeter. This paper used the OSL technique for the characterization of dosimetric properties of Teflon. The doses-response curve has been obtained for {sup 60}Co radiation between 100 Gy and 50 kGy, and the OSL answer reproducibility. The preliminary results shown that the Teflon is a material which can be used for high dose dosimetry

  10. Trap-controlled charge transport in corona-charged Teflon

    International Nuclear Information System (INIS)

    Gross, B.; Giacometti, J.A.; Ferreira, G.F.L.; Moreno A, R.A.

    1980-01-01

    The stability of negatively charged Teflon electrets is discussed. It is stated that it can only be explained by the assumption that the transport of excess charge is trap - controlled rather than mobility - controlled. (I.C.R.) [pt

  11. Millimeter-wave radiation from a Teflon dielectric probe and its imaging application

    International Nuclear Information System (INIS)

    Kume, Eiji; Sakai, Shigeki

    2008-01-01

    The beam profile of a millimeter wave radiated from the tip of a Teflon dielectric probe was characterized experimentally by using a three-dimensional scanning dielectric probe and numerically by using the finite difference time domain (FDTD) method. The measured intensity distribution and polarization of the millimeter wave radiated from the tip of the probe was in good agreement with those of the FDTD simulation. A reflection type of a millimeter- wave imaging system using this dielectric probe was constructed. The resolution of the imaging system was as small as 1 mm, which was slightly smaller than a half wavelength, 1.6 mm, of the radiation wave. Translucent measurement of a commercially manufactured IC card which consists of an IC chip and a leaf-shaped antenna coil was demonstrated. Not only the internal two-dimensional structures but also the vertical information of the card could be provided

  12. Thermoluminescent characteristics of diopside-teflon composites for radiation dosimetry

    International Nuclear Information System (INIS)

    Melo, A.P.; Caldas, L.V.E.

    2006-01-01

    Diopside - Teflon composites were been studied in relation to their dosimetric properties for high-dose dosimetry. Diopside from Minas Gerais, Brazil, CaMg(Si 2 O 6 ), was obtained in form of rude mineral with inclusions of quartz. The samples were prepared and only Diopside grains obtained. Pellets of Diopside-Teflon composites were prepared in the proportion of 2(Teflon): 1 (Diopside).The TL response repeatability presented a maximum coefficient of variation of 7.5%. The calibration curve is linear between 0.5 Gy and 1 kGy. TL emission spectra present three emissions of similar intensities at 570 nm, 590 nm and between 610-635 nm. The results suggest that the material presents good characteristics for use as high-dose radiation detectors. (Author)

  13. Package Holds Five Monolithic Microwave Integrated Circuits

    Science.gov (United States)

    Mysoor, Narayan R.; Decker, D. Richard; Olson, Hilding M.

    1996-01-01

    Packages protect and hold monolithic microwave integrated circuit (MMIC) chips while providing dc and radio-frequency (RF) electrical connections for chips undergoing development. Required to be compact, lightweight, and rugged. Designed to minimize undesired resonances, reflections, losses, and impedance mismatches.

  14. DETACHMENT OF HUMAN FIBROBLASTS FROM FEP-TEFLON SURFACES

    NARCIS (Netherlands)

    VANKOOTEN, TG; SCHAKENRAAD, JM; VANDERMEI, HC; BUSSCHER, HJ

    1991-01-01

    In this study a comparison is made between the detachment behavior of human fibroblasts adhered to hydrophobic FEP-Teflon (water contact angle 109 degrees) and to hydrophilic glass (water contact angle smaller than 15 degrees) during exposure to a laminar, incrementally loaded flow. Detachment from

  15. ADHESION AND SPREADING OF HUMAN FIBROBLASTS ON SUPERHYDROPHOBIC FEP-TEFLON

    NARCIS (Netherlands)

    BUSSCHER, HJ; STOKROOS, [No Value; GOLVERDINGEN, JG; SCHAKENRAAD, JM

    1991-01-01

    Adhesion and spreading of human fibroblasts was studied on hydrophobized and hydrophilized FEP-Teflon, and compared with adhesion and spreading on untreated FEP-Teflon and Tissue culture polystyrene (TCPS). Superhydrophobic FEP-Teflon was prepared by ion etching followed by oxygen glow-discharge.

  16. Combined conduction and radiation with phase change in teflon slabs

    International Nuclear Information System (INIS)

    Shih, T.M.; Hsu, I.C.; Cunnington, G.R. Jr.

    1986-01-01

    A new approach to investigate, numerically, an one-dimensional Stefan problem with combined radiation and conduction has been developed. This numerical scheme is a modified version of the heat flux method and the scheme tracks the moving phase changing interface by coordinate transformation. The physical problem involves the radiative heating on one side of a Teflon slab; causing the material to melt and sublime as the melt-solid interface recedes. The other side of the Teflon slab is insulated. The results of this numerical scheme has been compared with results reported in the literature; before attempting to use this scheme to predict the experimental data. Satisfactory agreement between numerical results and the results in the literature as well as the experimental data has been obtained in both comparisons

  17. Thermoluminescent dosemeters of CaSO4: Dy + Teflon

    International Nuclear Information System (INIS)

    Campos, L.L.

    1989-01-01

    The development of a pellet dosemeter of CaSO 4 : Dy + Teflon at the Dosimetric Materials Production Laboratory - IPEN/Brazilian CNEN-SP is presented. The pellets were produced by cold pressing and sintering a mixture of CaSO 4 : Dy and Teflon powders. The pellet characteristics from the point of view of dosimetry. A filter combination providing an energy independent response from 20 KeV to 1,25 MeV was obtained. The dosemeter consists of three pellets sealed between two thin plastic sheets and placed under plastic and lead filters. The combination of these three filters allows to determine the energy of an unknown source. (author) [pt

  18. CaSO4: Dy + Teflon thermoluminescent dosemeters

    International Nuclear Information System (INIS)

    Campos, L.L.

    1986-01-01

    A pellet dosemeter of CaSO 4 : Dy + Teflon was developed at IPEN. CaSO 4 : Dy thermoluminescent phosphor, grown in the Dosimetric Materials Production Laboratory was chosen, due to its high sensitivity, ease of preparation and comparatively low cost. Pellets were produced by cold pressing and sintering a mixture of CaSO 4 : Dy and Teflon powders. Extensive work was done to study in detail all CaSO 4 : Dy pellets characteristics from the point of view of dosimetry with the purpose of introducing it in the routine use. A filter combination providing an energy independent response from 20 KeV to 1,25 MeV was obtained. The dosemeter consists of three pellets sealed between two thin plastic sheets and placed under plastic and lead filters. The combination of these tree filters allows the exposure as well as the energy determination of an unknown source. (Author) [pt

  19. Female urinary stress incontinence treated with Teflon injections

    DEFF Research Database (Denmark)

    Osther, P J; Røhl, H

    1987-01-01

    Twenty-six women with urinary stress incontinence underwent transperineal or transurethral Teflon injections. The results were classified into three grades (good, moderate, and poor). Good or moderate results were obtained in 50%. No major immediate complications or long-term side-effects were...... observed. This intervention is associated with a minimum of discomfort for the patient and hospitalization can be limited to 48-72 h. The procedure can be carried out with good effect on women previously classically operated on without success and it does not prevent subsequent surgical intervention...

  20. Hearing improvement after stapedotomy using teflon loop prosthesis

    International Nuclear Information System (INIS)

    Ahmed, S.; Raza, N.

    2006-01-01

    To assess hearing improvement after stapedotomy for otosclerosis using teflon loop prosthesis. Thirty diagnosed cases of otosclerosis were included in the study. Ear with greater air-bone gap was selected and stapedotomy was done using teflon loop prosthesis (size 4 - 4.5 mm). Mild vertigo occurred during immediate postoperative period, which subsided with Inj. Prochlorperazine. Patients were followed-up postsurgically at one month, two months, four months, six months and one year and postoperative air-bone gap was calculated. Out of 30 cases, there were 24 males and 06 females. The age ranged from 18 to 50 years. Twenty-one (70%) patients had bilateral hearing loss and 09 (30%) had tinnitis also. Pre-operative audiograms showed conductive deafness. Carhart's notch was present in 10 (33.3%) cases. Tympanogram revealed loss of stapedial reflex. Postoperatively good hearing improvement was seen in 56.7% (postoperative air-bone gap closure upto 10 dB), fair improvement in 30% (postoperative air bone gap closure from 11 to 20 dB) and poor results in 10% (postoperative air-bone gap more than 21 dB) cases. One patient developed dead ear. (author)

  1. Femtosecond laser ablation of polytetrafluoroethylene (Teflon) in ambient air

    International Nuclear Information System (INIS)

    Wang, Z.B.; Hong, M.H.; Lu, Y.F.; Wu, D.J.; Lan, B.; Chong, T.C.

    2003-01-01

    Teflon, polytetrafluorethylene (PTFE), is an important material in bioscience and medical application due to its special characteristics (bio-compatible, nonflammable, antiadhesive, and heat resistant). The advantages of ultrashort laser processing of Teflon include a minimal thermal penetration region and low processing temperatures, precision removal of material, and good-quality feature definition. In this paper, laser processing of PTFE in ambient air by a Ti:sapphire femtosecond laser (780 nm, 110 fs) is investigated. It is found that the pulse number on each irradiated surface area must be large enough for a clear edge definition and the ablated depth increases with the pulse number. The air ionization effect at high laser fluences not only degrades the ablated structures quality but also reduces the ablation efficiency. High quality microstructures are demonstrated with controlling laser fluence below a critical fluence to exclude the air ionization effect. The ablated microstructures show strong adhesion property to liquids and clear edges that are suitable for bio-implantation applications. Theoretical calculation is used to analyze the evolution of the ablated width and depth at various laser fluences

  2. Holding fast.

    Science.gov (United States)

    Gourville, John T

    2005-06-01

    CEO Peter Walsh faces a classic innovator's dilemma. His company, Crescordia, produces high-quality metal plates, pins, and screws that orthopedic surgeons use to repair broken bones. In fact, because the company has for decades refused to compromise on quality, there are orthopedic surgeons who use nothing but Crescordia hardware. And now these customers have begun to clamor for the next generation technology: resorbable hardware. Resorbables offer clear advantages over the traditional hardware. Like dissolving sutures, resorbable plates and screws are made of biodegradable polymers. They hold up long enough to support a healing bone, then gradually and harmlessly disintegrate in the patient's body. Surgeons are especially looking forward to using resorbables on children, so kids won't have to undergo a second operation to remove the old hardware after their bones heal, a common procedure in pediatrics. The new products, however, are not yet reliable; they fail about 8% of the time, sometimes disintegrating before the bone completely heals and sometimes not ever fully disintegrating. That's why Crescordia, mindful of its hard-earned reputation, has delayed launching a line using the new technology. But time is running out. A few competitors have begun to sell resorbables despite their imperfections, and these companies are picking up market share. Should Crescordia join the fray and risk tarnishing its brand? Or should the company sit tight until it can offer a perfect product? Commenting on this fictional case study are Robert A. Lutz, vice chairman of product development at General Motors; Clayton M. Christensen, the Robert and Jane Cizik Professor of Business Administration at Harvard Business School; Jason Wittes, a senior equity analyst covering medical supplies and devices at Leerink Swann; and Nick Galakatos, a general partner of MPM Capital.

  3. Effective ultraviolet irradiation of platelet concentrates in teflon bags

    International Nuclear Information System (INIS)

    Capon, S.M.; Sacher, R.A.; Deeg, H.J.

    1990-01-01

    Several plastic materials used in blood storage were evaluated for their ability to transmit ultraviolet B (UVB) light. A plastic bag manufactured from sheets of transparent Teflon efficiently (78-86%) transmitted UVB light and was employed in subsequent functional studies of lymphocytes and platelets exposed to UVB light while contained in these bags. In vitro experiments showed a UVB dose-dependent abrogation of lymphocyte responder and stimulator functions, with concurrent preservation of platelet aggregation responses. In a phase I pilot study, UVB-treated platelet concentrates were administered to four bone marrow transplant recipients. Adverse effects attributable to the transfusions were not observed, and patients showed clinically effective transfusion responses. No patient developed lymphocytotoxic HLA or platelet antibodies. These studies suggest that platelets can be effectively irradiated with UVB light in a closed system. However, numerous variables, including container material, volume and composition of contents, steady exposure versus agitation, and exact UV wavelength, must be considered

  4. Teflon granulomas mimicking cerebellopontine angle tumors following microvascular decompression.

    Science.gov (United States)

    Deep, Nicholas L; Graffeo, Christopher S; Copeland, William R; Link, Michael J; Atkinson, John L; Neff, Brian A; Raghunathan, Aditya; Carlson, Matthew L

    2017-03-01

    To report two patients with a history of microvascular decompression (MVD) for hemifacial spasm who presented with Teflon granulomas (TG) mimicking cerebellopontine angle (CPA) tumors and to perform a systematic review of the English-language literature. Case series at a single tertiary academic referral center and systematic review. Retrospective chart review with analysis of clinical, radiological, and histopathological findings. Systematic review using PubMed, Embase, MEDLINE, and Web of Science databases. Two patients with large skull base TGs mimicking CPA tumors clinically and radiographically were managed at the authors' institution. The first presented 4 years after MVD with asymmetrical sensorineural hearing loss, multiple progressive cranial neuropathies, and brainstem edema due to a growing TG. Reoperation with resection of the granuloma confirmed a foreign-body reaction consisting of multinucleated giant cells containing intracytoplasmic Teflon particles. The second patient presented 11 years after MVD with asymmetrical sensorineural hearing loss and recurrent hemifacial spasm. No growth was noted over 2 years, and the patient has been managed expectantly. Only one prior case of TG after MVD for hemifacial spasm has been reported in the English literature. TG is a rare complication of MVD for hemifacial spasm. The diagnosis should be suspected in patients presenting with a new-onset enhancing mass of the CPA after MVD, even when performed decades earlier. A thorough clinical and surgical history is critical toward establishing an accurate diagnosis to guide management and prevent unnecessary morbidity. Surgical intervention is not required unless progressive neurologic complications ensue. 4 Laryngoscope, 127:715-719, 2017. © 2016 The American Laryngological, Rhinological and Otological Society, Inc.

  5. Transport of organic solutes through amorphous teflon AF films.

    Science.gov (United States)

    Zhao, Hong; Zhang, Jie; Wu, Nianqiang; Zhang, Xu; Crowley, Katie; Weber, Stephen G

    2005-11-02

    Fluorous media have great potential for selective extraction (e.g., as applied to organic synthesis). Fluorous polymer films would have significant advantages in fluorous separations. Stable films of Teflon AF 2400 were cast from solution. Films appear defect-free (SEM; AFM). Rigid aromatic solutes are transported (from chloroform solution to chloroform receiving phase) in a size-dependent manner (log permeability is proportional to -0.0067 times critical volume). Benzene's permeability is about 2 orders of magnitude higher than in comparable gas-phase experiments. The films show selectivity for fluorinated solutes in comparison to the hydrogen-containing control. Transport rates are dependent on the solvent making up the source and receiving phases. The effect of solvent is, interestingly, not due to changes in partition ratio, but rather it is due to changes in the solute diffusion coefficient in the film. Solvents plasticize the films. A less volatile compound, -COOH-terminated poly(hexafluoropropylene oxide) (4), plasticizes the films (T(g) = -40 degrees C). Permeabilities are decreased in comparison to 4-free films apparently because of decreased diffusivity of solutes. The slope of dependence of log permeability on critical volume is not changed, however.

  6. Electric Holding Company Areas

    Data.gov (United States)

    Department of Homeland Security — Holding companies are electric power utilities that have a holding company structure. This vector polygon layer represents the area served by electric power holding...

  7. Nylon and teflon scribe effect on NBR to Chemlok 233 and NBR to NBR bond interfaces

    Science.gov (United States)

    Jensen, S. K.

    1990-01-01

    A study was requested by Manufacturing Engineering to determine what effects marking with nylon (6/6) and Teflon scribes may have on subsequent bonding. Witness panel bond specimens were fabricated by the development lab to test both acrylonitrile butadiene rubber (NBR) to Chemlok and NBR to NBR after controlled exposure. The nylon rod used as a scribe tool demonstrates virtually no bond deterioration when used to scribe lines on either the Chemlok to NBR surfaces or the NBR to NBR interface. Lab test results indicate that the nylon rod-exposed samples produce tensile and peel values very similar to the control samples and the Teflon exposed samples produce tensile and peel values much lower than the control samples. Visual observation of the failure surfaces of the tested samples shows that Teflon scribing produces an obvious contamination to the surface and the nylon produces no effect. Photographs of test samples are provided. It is concluded that Teflon stock used as a scribe tool on a Chemlok 233 to NBR surface or an NBR to NBR surface has a detrimental effect on the bond integrity on either of these bond interfaces. Therefore, it is recommended that the nylon rod continue to be used where a scribe line is required in the redesigned solid rocket motor segment insulation layup operations. The use of Teflon scribes should not be considered.

  8. Chips 2020

    CERN Document Server

    2016-01-01

    The release of this second volume of CHIPS 2020 coincides with the 50th anniversary of Moore’s Law, a critical year marked by the end of the nanometer roadmap and by a significantly reduced annual rise in chip performance. At the same time, we are witnessing a data explosion in the Internet, which is consuming 40% more electrical power every year, leading to fears of a major blackout of the Internet by 2020. The messages of the first CHIPS 2020, published in 2012, concerned the realization of quantum steps for improving the energy efficiency of all chip functions. With this second volume, we review these messages and amplify upon the most promising directions: ultra-low-voltage electronics, nanoscale monolithic 3D integration, relevant-data, brain- and human-vision-inspired processing, and energy harvesting for chip autonomy. The team of authors, enlarged by more world leaders in low-power, monolithic 3D, video, and Silicon brains, presents new vistas in nanoelectronics, promising  Moore-like exponential g...

  9. Simple and robust near-infrared spectroscopic monitoring of indium-tin-oxide (ITO) etching solution using Teflon tubing

    International Nuclear Information System (INIS)

    Nah, Sanghee; Ryu, Kyungtag; Cho, Soohwa; Chung, Hoeil; Namkung, Hankyu

    2006-01-01

    The ability to monitor etching solutions using a spectroscopy directly through existing Teflon lines in electronic industries is highly beneficial and offers many advantages. A monitoring method was developed using near-infrared (NIR) measurements with Teflon tubing as a sample container for the quantification of components in the indium-tin-oxide (ITO) etching solution composed of hydrochloric acid (HCl), acetic acid (CH 3 COOH) and water. Measurements were reproducible and it was possible to use the same calibration model for different Teflon tubings. Even though partial least squares (PLS) calibration performance was slightly degraded for Teflon cells when compared to quartz cells of the similar pathlength, the calibration data correlated well with reference data. The robustness of Teflon-based NIR measurement was evaluated by predicting the spectra of 10 independent samples that were collected using five different Teflon tubes. Although, two Teflon tubes were visually less transparent than the other three, there was no significant variation in the standard error of predictions (SEPs) among the five Teflon tubes. Calibration accuracy was successfully maintained and highly repeatable prediction results were achieved. This study verifies that a Teflon-based NIR measurement is reliable for the monitoring of etching solutions and it can be successfully integrated into on-line process monitoring

  10. Synchrotron Vacuum Ultraviolet Light and Soft X-Ray Radiation Effects on Aluminized Teflon FEP Investigated

    Science.gov (United States)

    Dever, Joyce A.; Townsend, Jacqueline A.; Gaier, James R.; Jalics, Alice I.

    1999-01-01

    Since the Hubble Space Telescope (HST) was deployed in low Earth orbit in April 1990, two servicing missions have been conducted to upgrade its scientific capabilities. Minor cracking of second-surface metalized Teflon FEP (DuPont; fluorinated ethylene propylene) surfaces from multilayer insulation (MLI) was first observed upon close examination of samples with high solar exposure retrieved during the first servicing mission, which was conducted 3.6 years after deployment. During the second HST servicing mission, 6.8 years after deployment, astronaut observations and photographic documentation revealed significant cracks in the Teflon FEP layer of the MLI on both the solar- and anti-solar-facing surfaces of the telescope. NASA Goddard Space Flight Center directed the efforts of the Hubble Space Telescope MLI Failure Review Board, whose goals included identifying the low-Earth-orbit environmental constituent(s) responsible for the cracking and embrittling of Teflon FEP which was observed during the second servicing mission. The NASA Lewis Research Center provided significant support to this effort. Because soft x-ray radiation from solar flares had been considered as a possible cause for the degradation of the mechanical properties of Teflon FEP (ref. 1), the effects of soft xray radiation and vacuum ultraviolet light on Teflon FEP were investigated. In this Lewisled effort, samples of Teflon FEP with a 100-nm layer of vapor-deposited aluminum (VDA) on the backside were exposed to synchrotron radiation of various vacuum ultraviolet and soft x-ray wavelengths between 18 nm (69 eV) and 0.65 nm (1900 eV). Synchrotron radiation exposures were conducted using the National Synchrotron Light Source at Brookhaven National Laboratory. Samples of FEP/VDA were exposed with the FEP surface facing the synchrotron beam. Doses and fluences were compared with those estimated for the 20-yr Hubble Space Telescope mission.

  11. Influence of Teflon substrate on crystallization and enzymatic degradation of polymorphic poly(butylene adipate)

    DEFF Research Database (Denmark)

    Ning, Zhenbo; Nielsen, Ronnie Bo Højstrup; Zhao, Lifen

    2014-01-01

    for PBA beta crystals between neither the oriented nor the non-oriented Teflon films. The enzymatic degradation rate of PBA films was not determined by the epitaxial crystallization, in fact it was still dependent on the polymorphic crystal structure of PBA. The morphological changes of PBA films after...... enzymatic degradation confirmed again that the epitaxial crystallization only occurred for the PBA film with alpha crystal structure which was produced by being sandwiched between oriented Teflon films, and it happened only on the surface of PBA films....

  12. Ultras-stable Physical Vapor Deposited Amorphous Teflon Films with Extreme Fictive Temperature Reduction

    Science.gov (United States)

    McKenna, Gregory; Yoon, Heedong; Koh, Yung; Simon, Sindee

    In the present work, we have produced highly stable amorphous fluoropolymer (Teflon AF® 1600) films to study the calorimetric and relaxation behavior in the deep in the glassy regime. Physical vapor deposition (PVD) was used to produce 110 to 700 nm PVD films with substrate temperature ranging from 0.70 Tg to 0.90 Tg. Fictive temperature (Tf) was measured using Flash DSC with 600 K/s heating and cooling rates. Consistent with prior observations for small molecular weight glasses, large enthalpy overshoots were observed in the stable amorphous Teflon films. The Tf reduction for the stable Teflon films deposited in the vicinity of 0.85 Tg was approximately 70 K compared to the Tgof the rejuvenated system. The relaxation behavior of stable Teflon films was measured using the TTU bubble inflation technique and following Struik's protocol in the temperature range from Tf to Tg. The results show that the relaxation time decreases with increasing aging time implying that devitrification is occurring in this regime.

  13. A prospective randomized trial of Teflon versus polyethylene stents for distal malignant biliary obstruction

    NARCIS (Netherlands)

    van Berkel, A. M.; Boland, C.; Redekop, W. K.; Bergman, J. J.; Groen, A. K.; Tytgat, G. N.; Huibregtse, K.

    1998-01-01

    Clogging of biliary stents continues to be a major clinical problem. Different polymer materials may have different effects on clogging. In vitro studies have shown a direct relation between the frictional coefficient of a polymer and the amount of encrusted material. Teflon appeared to be the best

  14. Exploring Imperfect Squeezing Flow Measurements in a Teflon Geometry for Semisolid Foods

    NARCIS (Netherlands)

    Terpstra, M.E.J.; Janssen, A.M.; Linden, van der E.

    2007-01-01

    The method of imperfect lubricated squeezing flow in a Teflon¿ geometry has been explored for the characterization of elongational behavior of custard and mayonnaise. Two Newtonian products, one of low (0.07 Pas) and one of high (18 Pas) shear viscosity, were used as references. Measurements of

  15. Rock Equity Holdings, LLC

    Science.gov (United States)

    The EPA is providing notice of an Administrative Penalty Assessment in the form of an Expedited Storm Water Settlement Agreement against Rock Equity Holdings, LLC, for alleged violations at The Cove at Kettlestone/98th Street Reconstruction located at 3015

  16. Breath-Holding Spells

    Science.gov (United States)

    ... reviewed: October 2016 More on this topic for: Parents Is It Normal for Children to Hold Their Breath? Taming Tempers Disciplining Your Child Disciplining Your Toddler Temper Tantrums Separation Anxiety View more About Us Contact Us Partners ...

  17. Protecting chips against hold time violations due to variability

    CERN Document Server

    Neuberger, Gustavo; Reis, Ricardo

    2013-01-01

    With the development of Very-Deep Sub-Micron technologies, process variability is becoming increasingly important and is a very important issue in the design of complex circuits. Process variability is the statistical variation of process parameters, meaning that these parameters do not have always the same value, but become a random variable, with a given mean value and standard deviation. This effect can lead to several issues in digital circuit design.The logical consequence of this parameter variation is that circuit characteristics, as delay and power, also become random variables. Becaus

  18. Plastia da valva mitral com a técnica do "Duplo Teflon": resultados de 10 anos Mitral valve repair with "Double Teflon" technique: 10-year results

    Directory of Open Access Journals (Sweden)

    Carlos Manuel de Almeida Brandão

    2007-12-01

    Full Text Available OBJETIVO: O objetivo deste trabalho é apresentar os resultados clínicos tardios da plástica da valva mitral com a técnica do "Duplo Teflon". MÉTODOS: A plástica de "Duplo Teflon" consiste em técnica de reparo mitral com ressecção quadrangular da cúspide posterior, anuloplastia segmentar com plicatura do anel com de fios com "pledgets" sobre uma tira de Teflon, e sutura borda a borda da cúspide. Entre abril de 1994 e dezembro de 2003, 133 pacientes com diagnóstico de insuficiência mitral degenerativa com alongamento ou rotura de cordas da cúspide posterior foram submetidos à plástica com esta técnica. A idade média foi de 60,4 anos e 60,9% eram do sexo feminino. Quanto à avaliação clínica no pré-operatório, 29,3% dos pacientes estavam em classe funcional IV, 55,7% em classe III e 15,0% em classe II. Técnicas associadas de plástica mitral foram utilizadas em 15,2% dos pacientes, sendo a mais comum o encurtamento de cordas. Vinte e seis (19,5% pacientes foram submetidos a operações associadas. RESULTADOS: Houve um (0,75% óbito hospitalar. No período pós-operatório tardio, 95,5% dos sobreviventes estavam em classe funcional I. As taxas linearizadas de tromboembolismo, reoperação e óbito foram 0,9%, 0,3% e 0,6% pacientes/ano, respectivamente. A sobrevida atuarial em 10 anos foi de 94,1% ± 3,6%. As sobrevidas atuariais livre de tromboembolismo e reoperação foram de 97,3 ± 1,5% e 99,2 ± 0,8%, respectivamente. Não houve casos de endocardite ou hemólise. CONCLUSÃO: A plástica da valva mitral com a técnica do "Duplo Teflon" apresenta baixa morbi-mortalidade e boa evolução clínica tardia.OBJECTIVE: The purpose of this paper is to present the late clinical results of mitral valve repair with the "Double Teflon" technique. METHODS: "Double Teflon" technique consists of a quadrangular resection of the posterior leaflet, annulus plication with "pledgetted" stitches over a Teflon patch, and leaflet suture. Between

  19. Qualification of Magnesium/Teflon/Viton Pyrotechnic Composition Used in Rocket Motors Ignition System

    Directory of Open Access Journals (Sweden)

    Luciana de Barros

    2016-04-01

    Full Text Available The application of fluoropolymers in high-energy-release pyrotechnic compositions is common in the space and defense areas. Pyrotechnic compositions of magnesium/Teflon/Viton are widely used in military flares and pyrogen igniters for igniting the solid propellant of a rocket motor. Pyrotechnic components are considered high-risk products as they may cause catastrophic accidents if initiated or ignited inadvertently. To reduce the hazards involved in the handling, storage and transportation of these devices, the magnesium/Teflon/Viton composition was subjected to various sensitivity tests, DSC and had its stability and compatibility tested with other materials. This composition obtained satisfactory results in all the tests, which qualifies it as safe for production, handling, use, storage and transportation.

  20. Experimental measurements and numerical simulation of permittivity and permeability of Teflon in X band

    Directory of Open Access Journals (Sweden)

    Adriano Luiz de Paula

    2011-01-01

    Full Text Available Recognizing the importance of an adequate characterization of radar absorbing materials, and consequently their development, the present study aims to contribute for the establishment and validation of experimental determination and numerical simulation of electromagnetic materials complex permittivity and permeability, using a Teflon® sample. The present paper branches out into two related topics. The first one is concerned about the implementation of a computational modeling to predict the behavior of electromagnetic materials in confined environment by using electromagnetic three-dimensional simulation. The second topic re-examines the Nicolson-Ross-Weir mathematical model to retrieve the constitutive parameters (complex permittivity and permeability of a homogeneous sample (Teflon®, from scattering coefficient measurements. The experimental and simulated results show a good convergence that guarantees the application of the used methodologies for the characterization of different radar absorbing materials samples.

  1. EFFECT OF TEFLON AND NAFION LOADING AT ANODE IN DIRECT FORMIC ACID FUEL CELL (DFAFC

    Directory of Open Access Journals (Sweden)

    M. S. MASDAR

    2016-08-01

    Full Text Available DFAFC has extensive hydrophilic nature and will cause problems in a limited mass transport in the anode side of electrode. Thus, the microporous layer (MPL of DFAFC needs a different in structure and morphology compared with that of PEMFC and DMFC because it will directly affect the performance. Therefore, in this study, the formulation of anode’s MPL has been investigated by varying the amount of Teflon and Nafion. Different loading of Teflon in MPL and Nafion in catalyst layer, i.e., 0 to 40% in weight, were used to fabricate the anode’s DFAFC. The characteristic of MPLs and anode (MPL with catalyst layer such as surface morphologies and resistivity, i.e., electrical impedance, have been analyzed using field emission scanning electron microscopy (FESEM and contact angle measurements as well as electrochemical impedance spectra (EIS. Meanwhile, the performance of fabricated anode was measured using cyclic voltammetry (CV technique with a half cell of DFAFC. From the result, it was obtained that the optimum content for both Teflon and Nafion on anode’s DFAFC was 20 wt% as shown in a highest electro-activity in electrode. The single cell DFAFC with optimum MEA formulation showed a good performance and hence, it is possible to apply the electricity power for electronic devices.

  2. Fast Surface Temperature Measurement of Teflon Propellant in Pulsed Ablative Discharges Using HgCdTe Photovoltaic Cells (PREPRINT)

    National Research Council Canada - National Science Library

    Antonsen, Erik L; Burton, Rodney L; Reed, Garrett A; Spanjers, Gregory G

    2006-01-01

    ... ablative discharge with Teflon(TradeMark) as the ablated material. Analysis is used to derive a governing equation for detector output voltage for materials with wavelength dependent emissivity...

  3. Tube holding system

    International Nuclear Information System (INIS)

    Cunningham, R.C.

    1978-01-01

    A tube holding rig is described for the lateral support of tubes arranged in tight parcels in a heat exchanger. This tube holding rig includes not less than two tube supporting assemblies, with a space between them, located crosswise with respect to the tubes, each supporting assembly comprising a first set of parallel components in contact with the tubes, whilst a second set of components is also in contact with the tubes. These two sets of parts together define apertures through which the tubes pass [fr

  4. Enhancement of the CIGS solar cell's efficiency by anti-reflection coating with teflon AF

    Energy Technology Data Exchange (ETDEWEB)

    Bae, Hong-Sub; Kim, Chan; Rhee, Il-Su [Kyungpook National University, Daegu (Korea, Republic of); Jo, Hyun-Jun; Kim, Dae-Hwan [Daegu Gyeongbuk Institute of Science and Technology, Daegu (Korea, Republic of); Hong, Sung-Wook [Daegu University, Gyeongsan (Korea, Republic of)

    2014-11-15

    An anti-reflection (AR) layer of Teflon AF was deposited on the front surface of a Cu(In,Ga)Se{sub 2} (CIGS) solar cell with a structure of grid/TCO/ZnO/CdS/Cu(In,Ga)Se{sub 2}/Mo/glass by using the spin coating method. This AR layer reduced the front-surface reflection, which resulted in high efficiency for the CIGS solar cell. The thickness of the Teflon AF layer was varied to determine the thickness that gave the highest transmittance of incident light into the active absorber of the CIGS solar cell. The optimum thickness of the Teflon AF layer was found to be 105 nm. CIGS solar cells with a Teflon AF layer of 105 nm were constructed, and their efficiencies were compared with those of solar cells without a Teflon AF layer. The average increase in the relative efficiency of the solar cells was 2.63% due to the inclusion of an anti-reflection layer of Teflon AF.

  5. Teflon Examination

    Energy Technology Data Exchange (ETDEWEB)

    Dooraghi, A. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Seetho, I. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Smith, J.. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Brown, W. D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-04-27

    In this document, we outline an experiment performed at LLNL to evaluate the radiation sensitivity of polytetrafluoroethylene (PTFE) and a PTFE isomer, fluorinated ethylene propylene (FEP). We demonstrate that PTFE, a material currently used for assessing MicroCT system stability, shows higher radiation-dependent change in x-ray attenuation than FEP. Specifically, for a dose of approximately 1.44 x 103 Gy, the linear attenuation coefficient (LAC) of PTFE changes by 0.8 ± 0.1 %. During the same irradiation period, the LAC for FEP changes by 0.02 ± 0.1 %, which is within the statistical uncertainty of the measurement. Due to its higher resistance to radiation damage, we recommend that LLNL and partner labs operating under the Department of Homeland Security’s Explosives Division (DHS EXD) transition to the use of FEP as a reference material in place of PTFE.

  6. Breath-Hold Diving.

    Science.gov (United States)

    Fitz-Clarke, John R

    2018-03-25

    Breath-hold diving is practiced by recreational divers, seafood divers, military divers, and competitive athletes. It involves highly integrated physiology and extreme responses. This article reviews human breath-hold diving physiology beginning with an historical overview followed by a summary of foundational research and a survey of some contemporary issues. Immersion and cardiovascular adjustments promote a blood shift into the heart and chest vasculature. Autonomic responses include diving bradycardia, peripheral vasoconstriction, and splenic contraction, which help conserve oxygen. Competitive divers use a technique of lung hyperinflation that raises initial volume and airway pressure to facilitate longer apnea times and greater depths. Gas compression at depth leads to sequential alveolar collapse. Airway pressure decreases with depth and becomes negative relative to ambient due to limited chest compliance at low lung volumes, raising the risk of pulmonary injury called "squeeze," characterized by postdive coughing, wheezing, and hemoptysis. Hypoxia and hypercapnia influence the terminal breakpoint beyond which voluntary apnea cannot be sustained. Ascent blackout due to hypoxia is a danger during long breath-holds, and has become common amongst high-level competitors who can suppress their urge to breathe. Decompression sickness due to nitrogen accumulation causing bubble formation can occur after multiple repetitive dives, or after single deep dives during depth record attempts. Humans experience responses similar to those seen in diving mammals, but to a lesser degree. The deepest sled-assisted breath-hold dive was to 214 m. Factors that might determine ultimate human depth capabilities are discussed. © 2018 American Physiological Society. Compr Physiol 8:585-630, 2018. Copyright © 2018 American Physiological Society. All rights reserved.

  7. Preparation of membranes by radiation grafting of acrylic acid onto Teflon-FEP film

    International Nuclear Information System (INIS)

    Gupta, B.D.

    1991-01-01

    The grafting of acrylic acid on radiation-peroxidised Teflon-FEP film provides an effective technique to prepare ion-exchange membranes. It was found that the grafted membranes have very high degree of swelling in aqueous KOH. The electric resistance of the film decreases considerably by grafting. An electric resistance of 0.2Ω cm 2 was obtained for a graft level beyond 58%. The hydrophilicity of the film was evaluated in terms of contact angle which shows a decreasing trend with the increasing degree of grafting. (author). 8 refs

  8. Semiconductor Sensors Application for Definition of Factor of Ozone Heterogeneous Destruction on Teflon Surface

    Directory of Open Access Journals (Sweden)

    Nataliya V. Finogenova

    2003-12-01

    Full Text Available In our paper we present the results of our research, which was carried out by means of semiconductor sensor techniques (SCS, which allowed evaluating heterogeneous death-rate of ozone (γ Teflon surface. When ozone concentration is near to Ambient Air Standard value, γ is assessed to be equal to 6,57*10-7. High technique response provide possibility to determine ozone contents in the air media and the percentage of ozone, decomposed on the communication surfaces and on the surfaces of installation in the low concentration range (1–100 ppb.

  9. CaSO4: Dy + Teflon dosimetric pellets for X, beta and gamma radiation detection

    International Nuclear Information System (INIS)

    Campos, L.L.; Lima, M.F.

    1987-08-01

    CaSO 4 : Dy + TEFLON dosimetric pellets with high sensitivity and low cost for X, beta and gamma radiation monitoring were studied and developed by the Dosimetric Material Production Laboratory of the Radiological Protection Departament and are disposable for sale. The thickness of the pellets are suitable for X, beta and gamma radiation measurements. The dosimetric properties of these pellets were determined and presented in this work. The results show the usefulness of 0,20mm thick pellets for beta radiation monitoring and 0,80mm thick pellets for x and gamma radiation detection. (Author) [pt

  10. Investigation of beta ray attenuation in CaSO4:Dy(Tm)-teflon rods

    International Nuclear Information System (INIS)

    Szabo, P.P.

    1990-12-01

    Ultrathin discs were prepared from CaSO 4 :Dy(Tm)-teflon rods by cutting them with a microtom. The effect of cutting was studied experimentally. It was found that the cutting does not affect the TL signal of the discs, so one will be able to irradiate the rod and cut it afterwards which means that this method can be applied in the dosimetry of boundaries or to establish the energy of beta radiation. Depth dose distribution measurements were carried out by irradiating the rods with beta sources. (K.A.) 5 refs.; 6 figs

  11. Calculated energy dependence of CaSO4:Dy TL phosphor and phosphor embedded Teflon for X and gamma rays

    International Nuclear Information System (INIS)

    Chang, J.-K.; Nam, Y.-M.; Kim, J.-L.; Chang, S.-Y.; Kim, B.-H.

    2001-01-01

    The energy dependence of a CaSO 4 :Dy TL phosphor for 21 monoenergetic photons of energy ranging from 0.01 to 3 MeV was calculated by using MCNP4A code. The calculation results show good agreement with those of other authors within ± 5% relative error. Calculations and experiments are also performed to determine the energy dependence of CaSO 4 : Dy phosphor with Dy concentrations from 0.01 to 1.5 mol %, and with the compositions of TL-Teflon from 10 to 90 wt %. The calculated energy responses show good agreement with the experiment results within ± 20% relative error except for a concentration lower than 0.1 mol % Dy and the low energy regions of M30 (Eave.=20 keV) and M60 (Eave.=34 keV). For the TL-Teflon mixture, the energy dependence shows an decreasing trend with the increase of Teflon concentration in MCNP calculation but shows no dependence for TL-Teflon mixture proportions in experiment. These differences are due to the non-homogeneous distribution of Dy concentration and the effect of large grain size in the phosphors. The energy dependence of the 30 wt/o CaSO 4 (0.1 mol%;Dy) and 70 wt/o Teflon that is placed behind the filters of plastic, aluminum, copper, tin and lead with a thickness from 0.1 to 2 mm were calculated, respectively

  12. Characteristics of high-purity Teflon vial for 14C measurement in old tree rings

    International Nuclear Information System (INIS)

    Sakurai, H.; Saswaki, Y.; Matsumoto, T.; Aoki, T.; Kato, W.; Gandou, T.; Gunji, S.; Tokanai, F.

    2003-01-01

    14 C concentration in single-year tree rings of an old cedar of ca. 2500 years ago is measured to investigate the 11-yr periodicity of solar activity. Our highly accurate 14 C measuring system is composed of a benzene synthesizer capable of producing a large quantity (10 g) of benzene and a Quantulus 1220 TM liquid scintillation counting system. The accuracy is less than 0.2% for measurements of 14 C concentration. The benzene sample is contained in a high-purity Teflon/copper-counting vial (20 ml) manufactured by Wallac Oy Company. We found a vial with an irregular copper cap for the measurements of 11 tree rings. The behavior of the vial with the irregular cap was investigated. The Teflon sheet inside the cap plays an important role in achieving stable measurement. The rate of volatilization of the benzene was less than 0.35 mg/day for vials with ordinary caps. This results in the volatilization rate of 0.003% for 10.5 g of benzene and hence guarantees measurement at an accuracy of 0.2% for 70 days

  13. Study of the conductivity induced by radiation in teflon irradiated by X-ray

    International Nuclear Information System (INIS)

    Faria, R.M.

    1980-01-01

    It's measured the X-ray induced currents in teflon FEP which show the following features: a) At the beginning the current increases and reaches a maximum at about 10s, b) It decays slowly during 30 minutes, when a steady state is reached the delayed conductivity was also measured. The sample were 25 μm thick and the irradiated area was 12,5 cm 2 ; the applied field was of the order of 10 4 V/cm and the dose rate of order of 10 2 R/S. It was observed that a new measurement of the induced conductivity does not duplicate the first one, but after a few hours it comes back to the original one. In order to show that the increase and the decrease of the current is not caused by an electric field effect we realized a measurement where we polled the sample intermitently while it was irradiated. The current thus obtained had about the same values of the first measurement, when the voltage was applied all the time during the measurement. The absorption current of a teflon sample which shows after some days the effect of its variation due the variation of the ambiental temperature are measured. (Author) [pt

  14. Thermoluminescent signal fading of encapsulated lif: Mg,Ti detectors in PTFE-Teflon registered trademark

    International Nuclear Information System (INIS)

    Sasho Nikolovski, Sasho; Nikolovska, Lidija; Velevska, Marija; Velev, Velko

    2010-01-01

    Fading is a process when the latent information of a detector is unintentionally lost mainly due to the thermal influence. Thermoluminescent (TL) detectors have different sensitivities as far as the fading effect. Encapsulated TL detectors mounted within shielded filter holders are used during the personal monitoring of occupationally exposed persons in R. Macedonia. PTFE-Teflon registered trademark polymer is an example of encapsulation material that has a temperature resistance and it allows the luminescence signal to pass through. Since the encapsulated TL detectors cannot be submitted to annealing treatment in an oven, another fading reduction method is needed. The TL evaluation method suggested in this work is based on a specific glow-curve region. Irradiations were conducted using 90Sr/90Y source. Post-irradiation fade investigations were conducted for evaluation periods that varied up to 4 months. Two areas of the TL glow-curve were selected with the WimRems software. They correspond to the high and the low fading emission peaks (the lower temperature peaks display a greater degree of thermal fading than the higher temperature peaks). Post-irradiation fade is a contributing factor that affects the response of a thermoluminescent (TL) phosphor as a function of time. PTFE - Polytetrafluoroethylene most well known by the DuPont brand name Teflon registered trademark. (Author)

  15. UV and IR laser radiation's interaction with metal film and teflon surfaces

    Science.gov (United States)

    Fedenev, A. V.; Alekseev, S. B.; Goncharenko, I. M.; Koval', N. N.; Lipatov, E. I.; Orlovskii, V. M.; Shulepov, M. A.; Tarasenko, V. F.

    2003-04-01

    The interaction of Xe ([lambda] [similar] 1.73 [mu]m) and XeCl (0.308 [mu]m) laser radiation with surfaces of metal and TiN-ceramic coatings on glass and steel substrates has been studied. Correlation between parameters of surface erosion versus laser-specific energy was investigated. Monitoring of laser-induced erosion on smooth polished surfaces was performed using optical microscopy. The correlation has been revealed between characteristic zones of thin coatings damaged by irradiation and energy distribution over the laser beam cross section allowing evaluation of defects and adhesion of coatings. The interaction of pulsed periodical CO2 ([lambda] [similar] 10.6 [mu]m), and Xe ([lambda] [similar] 1.73 [mu]m) laser radiation with surfaces of teflon (polytetrafluoroethylene—PTFE) has been studied. Monitoring of erosion track on surfaces was performed through optical microscopy. It has been shown that at pulsed periodical CO2-radiation interaction with teflon the sputtering of polymer with formation of submicron-size particles occurs. Dependencies of particle sizes, form, and sputtering velocity on laser pulse duration and target temperature have been obtained.

  16. Pixel detector readout chip

    CERN Multimedia

    1991-01-01

    Close-up of a pixel detector readout chip. The photograph shows an aera of 1 mm x 2 mm containing 12 separate readout channels. The entire chip contains 1000 readout channels (around 80 000 transistors) covering a sensitive area of 8 mm x 5 mm. The chip has been mounted on a silicon detector to detect high energy particles.

  17. Comparative evaluation of the effect of silicone and teflon in prevention of epidural fibrosis after laminectomy in rat

    Directory of Open Access Journals (Sweden)

    Sheikh Rezaei A

    2001-08-01

    Full Text Available There are many studies about epidural fibrosis after surgical manipulation of the spine. We have studied formation of the post laminectomy epidural fibrosis after application of two materials (Silicone and Teflon in this report. This expriment is on two groups of rats. Two separated laminectomies were done in each rat, one serving as control while in the other laminectomy spaces Silicone was used in group A and Teflon in group B. Laminectomy spaces were evaluated with gross dissection and histologic studies after 6 weeks. Silicone decreased intermuscular scar, deep scar, dural adhesion and collagen fiber density in epidural space. Teflon decreased dural adhesion and collagen fiber density but did not decrease intermuscular and deep scar formation in epidural space.

  18. Fungal pretreatment of albizia chips for enhanced biogas production by solid-state anaerobic digestion

    Science.gov (United States)

    Albizia biomass is a forestry waste, and holds a great potential in biogas production by solid-state anaerobic digestion (SS-AD). However, low methane yields from albizia chips were observed due to their recalcitrant structure. In this study, albizia chips were pretreated by Ceriporiopsis subvermisp...

  19. Fast neutron responses of CaF2:Tm Teflon TLD discs of different thicknesses

    International Nuclear Information System (INIS)

    Pradhan, A.S.; Hoffmann, W.

    1986-01-01

    The fact that in CaF 2 :Tm (TLD-300) the ratio of the heights of thermoluminescence (TL) glow peaks at 240 0 C and 150 0 C is greater for irradiations by high LET radiations than by gamma rays has been found useful for the simultaneous and separate measurement of fast neutron and gamma ray absorbed doses. A recent study has indicated that the mixed field dosimetric characteristics of CaF 2 :Tm could be significantly improved by using thin TLDs. In the present study, CaF 2 :Tm Teflon TLD discs of thickness as low as 0.05 mm were evaluated. The thin discs could be read out by using normal planchette heating if a 400 0 C heat treatment is given to the discs prior to irradiation and TL readout. Influence of encapsulation of thin dosemeters was studied and their utility in situations such as interface dosimetry is discussed. (author)

  20. Characterization of thermoluminescent response of Al2O3:Tm/Teflon for gamma rays dosimetry

    International Nuclear Information System (INIS)

    Carvalho Junior, Alvaro B. de; Barros, Vinicius S.M. de; Elihimas, Diego Rafael M.; Khoury, Helen J.; Azevedo, Walter M. de

    2011-01-01

    In this work, α-Al 2 O 3 doped with Tm 3+ was prepared by combustion synthesis techniques for thermoluminescent (TL) ionizing radiation dosimetry applications. After this, Al 2 O 3 :Tm (0.1%) pellets were manufactured from a 2:1 homogeneous mixture of Al 2 O 3 :Tm (0.1%) and powdered Teflon (PTFE). Ten pellets were used to characterize the dosimetric properties. The dosimetric characterization was performed by analyses of the reproducibility, sensitivity of the TL response vs. dose between 1 and 10 Gy to 60 Co source and fading. The results showed a glow curve with a peak near to 225 deg C, a linear TL response with the gamma radiation dose in the range investigated and a reproducibility < 10%. These results indicate a potential use of these pellets for gamma radiation dosimetry. (author)

  1. Growth and decay of surface charges in grafts of Teflon in electrets states

    International Nuclear Information System (INIS)

    Spinelli, I.M.M.

    1971-01-01

    The greatest problem founded in a cardiovascular implant is the thrombus formation. Teflon grafts were used in electret state for prothesis in vena cava of dogs. To put these grafts in an electret state a corona discharge in air was used and homocharge was formed predominantly. To measure the formed surface charge the oscillating capacitor technique was used. In the electret state the grafts have showed an initial density of charge of 10- 8 C/cm 2 and the charge decay and time decay of the samples were measured under many conditions. We found two activation energies, E 2 =0.17 e V and E 3 =1.12 e V, due to rapid and slow decay, respectively. The charged grafts were sterilized with ethilene gas oxide and this process apparently did not influence the charges

  2. Optical and electrical properties of ion beam textured Kapton and Teflon

    Science.gov (United States)

    Mirtich, M. J.; Sovey, J. S.

    1977-01-01

    An electron bombardment argon ion source was used to ion etch polyimide (Kapton) and fluorinated ethylene, FEP (Teflon). Samples of polyimide and FEP were exposed to (0.5-1.0) keV Ar ions at ion current densities of (1.0-1/8) mA/sq cm for various exposure times. Changes in the optical and electrical properties of the samples were used to characterize the exposure. Spectral reflectance and transmittance measurements were made between 0.33 and 2.16 micron m using an integrating sphere after each exposure. From these measurements, values of solar absorptance were obtained. Total emittance measurements were also recorded for some samples. Surface resistivity was used to determine changes in the electrical conductivity of the etched samples. A scanning electron microscope recorded surface structure after exposure. Spectral optical data, resistivity measurements, calculated absorptance and emittance measurements are presented along with photomicrographs of the surface structure for the various exposures to Ar ions.

  3. High-yield acetonitrile | water triple phase boundary electrolysis at platinised Teflon electrodes

    Energy Technology Data Exchange (ETDEWEB)

    Watkins, John D.; MacDonald, Stuart M.; Fordred, Paul S.; Bull, Steven D. [Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY (United Kingdom); Gu, Yunfeng; Yunus, Kamran; Fisher, Adrian C. [Department of Chemical Engineering, University of Cambridge, New Museums Site, Pembroke Street, Cambridge CB2 3RA (United Kingdom); Bulman-Page, Philip C. [School of Chemistry, University of East Anglia, Norwich, Norfolk NR4 7TJ (United Kingdom); Marken, Frank [Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY (United Kingdom)], E-mail: f.marken@bath.ac.uk

    2009-11-30

    A dynamic acetonitrile | aqueous electrolyte phase boundary in contact with platinised Teflon working electrodes is investigated. High concentrations of salt in the aqueous phase (2 M NaCl and 0.1 M NaClO{sub 4}) ensure immiscibility and the polar nature of acetonitrile aids the formation of a well-behaved triple phase boundary reaction zone. The one-electron oxidation of tert-butylferrocene in the organic phase without intentionally added electrolyte is studied. The limiting current for the flowing triple phase boundary process is shown to be essentially volume flow rate independent. The process is accompanied by the transfer of perchlorate from the aqueous into the organic phase and the flux of anions is shown to be approximately constant along the dynamic acetonitrile | aqueous electrolyte | platinum line interface. A high rate of conversion (close to 100%) is achieved at slow volume flow rates and at longer platinum electrodes.

  4. A novel and inexpensive technique for creating superhydrophobic surfaces using Teflon and sandpaper

    Science.gov (United States)

    Nilsson, Michael A.; Daniello, Robert J.; Rothstein, Jonathan P.

    2010-02-01

    Considerable efforts have been spent over the last decade developing hydrophobic surfaces exhibiting very large contact angles with water. Many of these methods require complex and expensive fabrication techniques. We demonstrate that sanding Teflon can produce superhydrophobic surfaces with advancing contact angles of up to 151° and contact angle hysteresis of less than 4°. Furthermore, we show that a wide range of both advancing contact angles and contact angle hysteresis can be achieved by varying the grit size of the sandpaper, allowing for future hysteresis and contact angle studies. Scanning electron microscopy images of the roughened surfaces depict the range and amplitude of length scales imparted on the surface by the sandpaper, which leads to deeper understanding of the state of wetting on the surface.

  5. A retrospective study of the hearing results obtained after stapedotomy by the implantation of two Teflon pistons with a different diameter

    NARCIS (Netherlands)

    Grolman, W.; Tange, R. A.; de Bruijn, A. J.; Hart, A. A.; Schouwenburg, P. F.

    1997-01-01

    This study reports the evaluation of hearing results after implantation of a Teflon piston of a different diameter in cases of otosclerosis requiring stapedotomy. By random selection, a Teflon piston with a shaft diameter of 0.3 mm was inserted in 34 cases and a piston with a shaft diameter of 0.4

  6. The effect of ambient ozone and humidity on the performance of nylon and Teflon filters used in ambient air monitoring filter-pack systems

    Science.gov (United States)

    PE Padgett

    2010-01-01

    Nylon and Teflon filter media are frequently used for monitoring ambient air pollutants. These media are subject to many environmental factors that may influence adsorption and retention of particulate and gaseous nitrogenous pollutants. This study evaluated the effects of ozone and humidity on the efficacy of nylon and Teflon filters used in the US dry deposition...

  7. Dye-based coatings for hydrophobic valves and their application to polymer labs-on-a-chip

    Science.gov (United States)

    Riegger, L.; Mielnik, M. M.; Gulliksen, A.; Mark, D.; Steigert, J.; Lutz, S.; Clad, M.; Zengerle, R.; Koltay, P.; Hoffmann, J.

    2010-04-01

    We provide a method for the selective surface patterning of microfluidic chips with hydrophobic fluoropolymers which is demonstrated by the fabrication of hydrophobic valves via dispensing. It enables efficient optical quality control for the surface patterning thus permitting the low-cost production of highly reproducible hydrophobic valves. Specifically, different dyes for fluoropolymers enabling visual quality control (QC) are investigated, and two fluoropolymer-solvent-dye solutions based on fluorescent quantum dots (QD) and carbon black (CB) are presented in detail. The latter creates superhydrophobic surfaces on arbitrary substrates, e.g. chips made from cyclic olefin copolymer (COC, water contact angle = 157.9°), provides good visibility for the visual QC in polymer labs-on-a-chip and increases the burst pressures of the hydrophobic valves. Finally, an application is presented which aims at the on-chip amplification of mRNA based on defined flow control by hydrophobic valves is presented. Here, the optimization based on QC in combination with the Teflon-CB coating improves the burst pressure reproducibility from 14.5% down to 6.1% compared to Teflon-coated valves.

  8. Adsorption of IgG onto hydrophobic teflon. Differences between the F(ab) and F(c) domains

    NARCIS (Netherlands)

    Vermeer, AWP; Giacomelli, CE; Norde, W

    2001-01-01

    The effect of differences in the degree of hydrophobicity of protein patches/fragments on the adsorption behaviour of the protein is investigated. The adsorption isotherm of a monoclonal mouse anti-human immunoglobulin G (isotype 2b) onto hydrophobic Teflon particles is measured using a depletion

  9. Delayed post-surgical sepsis from Teflon felt: The diagnostic value of CT scanning, and a reminder for theatre staff

    Directory of Open Access Journals (Sweden)

    D Emby

    2011-05-01

    Full Text Available We report on 2 patients with surgical site infections following the inadvertent use of Teflon felt for haemostasis in elective and emergency surgery. CT scanning was superior to plain radiography in demonstrating the foreign bodies to enable planning of further surgical treatment.

  10. UW VLSI chip tester

    Science.gov (United States)

    McKenzie, Neil

    1989-12-01

    We present a design for a low-cost, functional VLSI chip tester. It is based on the Apple MacIntosh II personal computer. It tests chips that have up to 128 pins. All pin drivers of the tester are bidirectional; each pin is programmed independently as an input or an output. The tester can test both static and dynamic chips. Rudimentary speed testing is provided. Chips are tested by executing C programs written by the user. A software library is provided for program development. Tests run under both the Mac Operating System and A/UX. The design is implemented using Xilinx Logic Cell Arrays. Price/performance tradeoffs are discussed.

  11. ALICE chip processor

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    This tiny chip provides data processing for the time projection chamber on ALICE. Known as the ALICE TPC Read Out (ALTRO), this device was designed to minimize the size and power consumption of the TPC front end electronics. This single chip contains 16 low-power analogue-to-digital converters with six million transistors of digital processing and 8 kbits of data storage.

  12. Mure skal holde zombierne ude

    DEFF Research Database (Denmark)

    Stockmarr, Leila

    2013-01-01

    Vi bygger som besatte mure og barrierer for at holde flygtninge ude og tæmme de negative konsekvenser af den neoliberale globalisering.......Vi bygger som besatte mure og barrierer for at holde flygtninge ude og tæmme de negative konsekvenser af den neoliberale globalisering....

  13. Advanced flip chip packaging

    CERN Document Server

    Lai, Yi-Shao; Wong, CP

    2013-01-01

    Advanced Flip Chip Packaging presents past, present and future advances and trends in areas such as substrate technology, material development, and assembly processes. Flip chip packaging is now in widespread use in computing, communications, consumer and automotive electronics, and the demand for flip chip technology is continuing to grow in order to meet the need for products that offer better performance, are smaller, and are environmentally sustainable. This book also: Offers broad-ranging chapters with a focus on IC-package-system integration Provides viewpoints from leading industry executives and experts Details state-of-the-art achievements in process technologies and scientific research Presents a clear development history and touches on trends in the industry while also discussing up-to-date technology information Advanced Flip Chip Packaging is an ideal book for engineers, researchers, and graduate students interested in the field of flip chip packaging.

  14. DNA FROM ANCIENT STONE TOOLS AND BONES EXCAVATED AT BUGAS-HOLDING, WYOMING

    Science.gov (United States)

    Traces of DNA may preserve on ancient stone tools. We examined 24 chipped stone artifacts recovered from the Bugas-Holding site in northwestern Wyoming for the presence of DNA residues, and we compared DNA preservation in bones and stone tools from the same stratigraphic context...

  15. Directed ion beam sputter etching of polytetrafluorethylene (teflon) using an argon ion source

    Energy Technology Data Exchange (ETDEWEB)

    Garner, C E; Gabriel, S B; Kuo, Y S

    1982-09-24

    Polytetrafluoroethylene (Teflon) tubes of outside diameter 375-625 ..mu..m were perforated by bombarding the tubes with an argon ion beam. Holes of diameter 18 ..mu..m and 40 ..mu..m on a side and open-are ratios of 55% and 65% respectively were formed using electroformed nickel mesh masks. Scanning electron micrographs of the hole walls reveal that they are relatively smooth and that the holes go completely through the tubing walls. Holes with the smoothest walls and the sharpest definition were obtained by using low beam power densities and a tubing target temperature of less than 50/sup 0/C. Volumetric flow rate measurements show that the flow rate through the perforated tubules is 0.2-0.5 cm/sup 3/ min/sup -1/ for a pressure drop across the tubes of 2.2 Torr. The perforated microtubules have an important application in medicine for sufferers of hydrocephalus, a malady which results in the build-up of cerebrospinal fluid in the brain. The perforated tubing is inserted into the ventricle and serves as a shunt by draining off the excess cerebrospinal fluid into another part of the brain, where the fluid is absorbed by normal processes.

  16. Carbon loaded Teflon (CLT): a power density meter for biological experiments using millimeter waves.

    Science.gov (United States)

    Allen, Stewart J; Ross, James A

    2007-01-01

    The standard technique for measurement of millimeter wave fields utilizes an open-ended waveguide attached to a HP power meter. The alignment of the waveguide with the propagation (K) vector is critical to making accurate measurements. Using this technique, it is difficult and time consuming to make a detailed map of average incident power density over areas of biological interest and the spatial resolution of this instrument does not allow accurate measurements in non-uniform fields. For biological experiments, it is important to know the center field average incident power density and the distribution over the exposed area. Two 4 ft x 4 ft x 1/32 inch sheets of carbon loaded Teflon (CLT) (one 15% carbon and one 25% carbon) were procured and a series of tests to determine the usefulness of CLT in defining fields in the millimeter wavelength range was initiated. Since the CLT was to be used both in the laboratory, where the environment was well controlled, and in the field, where the environment could not be controlled, tests were made to determine effects of change in environmental conditions on ability to use CLT as a millimeter wave dosimeter. The empirical results of this study indicate CLT to be an effective dosimeter for biological experiments both in the laboratory and in the field.

  17. ESTATUTO PARADOXAL DA PELE E CULTURA CONTEMPORÂNEA: da porosidade à pele-teflon

    Directory of Open Access Journals (Sweden)

    Maria Cristina Franco Ferraz

    2014-06-01

    Full Text Available A exploração do estatuto paradoxal da pele - interface dentro/fora - permite ultrapassar a dicotomia metafísica superfície/profundidade, problematizando a tendência atual, também expressa na teoria, a um elogio das superfícies e a um horror por oposições dicotômicas. Possibilta avaliar as implicações do fechamento da porosidade da pele em formas de sociabilidade estimuladas na cultura da imagem, da exibição, do espetáculo, bem expressas pelo material inorgânico teflon. Sendo Poros, na visão grega, pai de Eros, a investigação acerca do estatuto paradoxal da pele convida a uma retomada do tema do erotismo. Partindo de perspectivas oferecidas por Agamben acerca da pornografia, ligada ao valor de exibição nas sociedades de espetáculo e de consumo, e relacionando-as a diversas reflexões de José Gil acerca do corpo e da pele, discute-se e convoca-se a abertura da porosidade da pele.

  18. Exploring imperfect squeezing flow measurements in a Teflon geometry for semisolid foods.

    Science.gov (United States)

    Terpstra, M E J; Janssen, A M; Linden, E van der

    2007-11-01

    The method of imperfect lubricated squeezing flow in a Teflontrade mark geometry has been explored for the characterization of elongational behavior of custard and mayonnaise. Two Newtonian products, one of low (0.07 Pas) and one of high (18 Pas) shear viscosity, were used as references. Measurements of custards and mayonnaises did not behave according to either the theory of lubricated or nonlubricated squeezing flow, as there were effects of the initial sample height and compression speed. Also, calculated values for the flow index were not as we had expected. The same was true for the Newtonian samples. An important factor explaining the effect of compression speed was the presence of a certain amount of friction, rendering both lubricated theory and nonlubricated theory nonapplicable. Correcting for (pseudo-) thixotropic behavior of custard and mayonnaise appears to be an effective way of obtaining realistic values for the flow index. The presence of buoyancy also affected the results, especially in the case of low viscous products and the effect of initial sample height. Other factors that played a role in the results were yield stress for custard and mayonnaise and instrumental artifacts associated with the imperfect setup of the measurement, especially for the highly viscous products. Quantitatively correcting the results for all of these factors is not possible at this point. Although the imperfect squeezing flow technique in a Teflon geometry is a very practical way to measure semisolids such as custard and mayonnaise under (partly) elongational deformation, the results should be regarded as more qualitative than quantitative.

  19. Electric field modulation of magnetic anisotropy and microwave absorption properties in Fe50Ni50/Teflon composite films

    Directory of Open Access Journals (Sweden)

    Zhenjun Xia

    2016-05-01

    Full Text Available Fe50Ni50 nanoparticle films with the size about 6 nm were deposited by a high energetic cluster deposition source. An electric field of about 0 - 40 kV was applied on the sample platform when the films were prepared. The field assisted deposition technique can dramatically induce in-plane magnetic anisotropy. To probe the microwave absorption properties, the Fe50Ni50 nanoparticles were deliberately deposited on the dielectric Teflon sheet. Then the laminated Fe50Ni50/Teflon composites were used to do reflection loss scan. The results prove that the application of electric field is an effective avenue to improve the GHz microwave absorption performance of our magnetic nanoparticles films expressed by the movement of reflection loss peak to high GHz region for the composites.

  20. Effect of steel and teflon infusion catheters on subcutaneous adipose tissue blood flow and infusion counter pressure in humans

    DEFF Research Database (Denmark)

    Højbjerre, Lise; Skov-Jensen, Camilla; Kaastrup, Peter

    2009-01-01

    BACKGROUND: Subcutaneous tissue is an important target for drug deposition or infusion. A local trauma may induce alterations in local microcirculation and diffusion barriers with consequences for drug bioavailability. We examined the influence of infusion catheters' wear time on local...... microcirculation and infusion counter pressure. METHODS: One steel catheter and one Teflon (Dupont, Wilmington, DE) catheter were inserted in subcutaneous, abdominal adipose tissue (SCAAT) in 10 healthy, lean men. The catheters were infused with isotonic saline at a rate of 10 microL/h for 48 h. Another steel...... catheter and a Teflon catheter were inserted contralateral to the previous catheters after 48 h. The infusion counter pressure was measured during a basal infusion rate followed by a bolus infusion. The measurements during a basal rate infusion were repeated after the bolus infusion. Adipose tissue blood...

  1. Synthesis of perm-selective membranes by grafting acrylic acid into air-irradiated Teflon-FEP films

    Science.gov (United States)

    Bozzi, Annick; Chapiro, Adolphe

    Grafting acrylic acid into air-irradiated Teflon-FEP films was investigated. Pre-irradiation doses ranged from 0.5 to 10 kGy. Grafting occurred at 45 or 60°C. Homopolymerization inhibitors, ferrous ions or methylene blue, were added to the system. It was found that after completion of the reaction, within 40-100 min, membranes were obtained with very low electric resistivities. The influence of added inhibitors, pre-irradiation dose and grafting temperature was studied. From the results it is concluded that the initiating centers in air-irradiated Teflon-FEP are, on the one hand, peroxides of structure POOP', in which P is a polymeric radical and Pprime; a small fragment, and on the other trapped PO .2 radicals. The latter only react after losing their oxygen. In the presence of polymerization inhibitors, initiation involves a redox process which reduces the overall activation energy.

  2. Synthesis of perm-selective membranes by grafting acrylic acid into air-irradiated Teflon-FEP films

    International Nuclear Information System (INIS)

    Bozzi, Annick; Chapiro, Adolphe

    1988-01-01

    Grafting acrylic acid into air-irradiated Teflon-FEP films was investigated. Pre-irradiation doses ranged from 0.5 to 10 kGy. Grafting occurred at 45 or 60 0 C. Homopolymerization inhibitors, ferrous ions or methylene blue, were added to the system. It was found that after completion of the reaction, within 40-100 min, membranes were obtained with very low electric resistivities. The influence of added inhibitors, pre-irradiation dose and grafting temperature was studied. From the results it is concluded that the initiating centers in air-irradiated Teflon-FEP are, on the one hand, peroxides of structure POOP', in which P is a polymeric radical and P' a small fragment, and on the other hand trapped PO 2 sup(·) radicals. The latter only react after losing their oxygen. In the presence of polymerization inhibitors, initiation involves a redox process which reduces the overall activation energy. (author)

  3. Effects of phosphor proportion and grain size on photon energy response of CaSO4:Dy teflon TLD discs

    International Nuclear Information System (INIS)

    Pradhan, A.S.; Bhatt, R.C.

    1979-01-01

    Effects of phosphor proportion and grain size on the photon energy dependence of CaSO 4 :Dy embedded teflon TLD discs have been studied. It was found that in the commonly used TLD disc compositions, the proportion of phosphor has only little effect on energy dependence. This dependence could be significantly reduced by using phosphor of grain size less than 1 μm. The experimental results are compared with calculated results. (Auth.)

  4. Mass transfer in fuel cells. [electron microscopy of components, thermal decomposition of Teflon, water transport, and surface tension of KOH solutions

    Science.gov (United States)

    Walker, R. D., Jr.

    1973-01-01

    Results of experiments on electron microscopy of fuel cell components, thermal decomposition of Teflon by thermogravimetry, surface area and pore size distribution measurements, water transport in fuel cells, and surface tension of KOH solutions are described.

  5. Hubble Space Telescope Metallized Teflon(registered trademark) FEP Thermal Control Materials: On-Orbit Degradation and Post-Retrieval Analysis

    Science.gov (United States)

    Townsend, Jacqueline A.; Hansen, Patricia A.; Dever, J. A.; deGroh, K. K.; Banks, B.; Wang, L.; He, C.

    1988-01-01

    During the Hubble Space Telescope (HST) Second Servicing Mission (SM2), degradation of unsupported Teflon(Registered Trademark) FEP (fluorinated ethylene propylene), used as the outer layer of the multilayer insulation (MLI) blankets, was evident as large cracks on the telescope light shield. A sample of the degraded outer layer was retrieved during the mission and returned to Earth for ground testing and evaluation. The results of the Teflon(Registered Trademark) FEP sample evaluation and additional testing of pristine Teflon(Registered Trademark) FEP led the investigative team to theorize that the HST damage was caused by thermal cycling with deep-layer damage from electron and proton radiation which allowed the propagation of cracks along stress concentrations , and that the damage increased with the combined total dose of electrons, protons, UV and x-rays along with thermal cycling. This paper discusses the testing and evaluation of the retrieved Teflon(Registered Trademark) FEP.

  6. Blue breath holding is benign.

    OpenAIRE

    Stephenson, J B

    1991-01-01

    In their recent publication in this journal, Southall et al described typical cyanotic breath holding spells, both in otherwise healthy children and in those with brainstem lesions and other malformations. Their suggestions regarding possible autonomic disturbances may require further study, but they have adduced no scientific evidence to contradict the accepted view that in the intact child blue breath holding spells are benign. Those families in which an infant suffers an 'apparently life t...

  7. Medicaid CHIP ESPC Database

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Environmental Scanning and Program Characteristic (ESPC) Database is in a Microsoft (MS) Access format and contains Medicaid and CHIP data, for the 50 states and...

  8. Filamentary superhydrophobic Teflon surfaces: Moderate apparent contact angle but superior air-retaining properties.

    Science.gov (United States)

    Di Mundo, Rosa; Bottiglione, Francesco; Palumbo, Fabio; Notarnicola, Michele; Carbone, Giuseppe

    2016-11-15

    Micro-scale textured Teflon surfaces, resulting from plasma etching modification, show extremely high water contact angle values and fairly good resistance to water penetration when hit by water drops at medium-high speed. This behavior is more pronounced when these surfaces present denser and smaller micrometric reliefs. Tailoring the top of these reliefs with a structure which further stabilizes the air may further increase resistance to wetting (water penetration) under static and dynamic conditions. Conditions of the oxygen fed plasma were tuned in order to explore the possibility of obtaining differently topped structures on the surface of the polymer. Scanning Electron Microscopy (SEM) was used to explore topography and X-ray Photoelectron Spectroscopy (XPS) to assess chemical similarity of the modified surfaces. Beside the usual advancing and receding water contact angle (WCA) measurements, surfaces were subjected to high speed impacting drops and immersion in water. At milder, i.e. shorter time and lower input power, plasma conditions formation of peculiar filaments is observed on the top of the sculpted reliefs. Filamentary topped surfaces result in a lower WCA than the spherical ones, appearing in this sense less superhydrophobic. However, these surfaces give rise to the formation of a more pronounced air layer when placed underwater. Further, when hit by water drops falling at medium/high speed, they show a higher resistance to water penetration and a sensitively lower surface-liquid contact time. The contact time is as low as previously observed only on heated solids. This behavior may be ascribed to the cavities formed beneath the filaments which, similarly with the salvinia leaf structures, require a surplus of pressure to be filled by water. Also, it suggests a different concept of superhydrophobicity, which cannot be expected on the basis of the conventional water contact angle characterization. Copyright © 2016 Elsevier Inc. All rights reserved.

  9. Nanostructured progesterone immunosensor using a tyrosinase-colloidal gold-graphite-Teflon biosensor as amperometric transducer

    Energy Technology Data Exchange (ETDEWEB)

    Carralero, Veronica [Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid (Spain); Gonzalez-Cortes, Araceli [Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid (Spain); Yanez-Sedeno, Paloma [Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid (Spain)]. E-mail: yseo@quim.ucm.es; Pingarron, Jose M. [Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid (Spain)

    2007-07-16

    A novel progesterone immunosensor using a colloidal gold-graphite-Teflon-tyrosinase composite biosensor as amperometric transducer is reported. A sequential competitive configuration between the analyte and progesterone labelled with alkaline phosphatase (AP) was used. Phenyl phosphate was employed as the AP-substrate and the enzyme reaction product, phenol, was oxidized by tyrosinase to o-quinone, which is subsequently reduced at -0.1 V at the biocomposite electrode. Variables such as the concentration of phenyl phosphate, the amount of antibody attached to the electrode surface, immersion time in a 2% BSA solution, working pH and incubation times in progesterone and AP conjugate were optimized. A linear calibration graph for progesterone was obtained between 0 and 40 ng mL{sup -1} with a slope value of -82.3 nA ng{sup -1} mL, and a detection limit of 0.43 ng mL{sup -1}. The time needed to reach the steady-state current from the addition of phenyl phosphate was 30-40 s. These analytical characteristics improve substantially those reported for other progesterone immunosensors. A lifetime of 14 days with no need to apply any regeneration procedure was also achieved. The usefulness of the immunosensor was evaluated by determining progesterone in milk samples spiked with the analyte at 5.0 and 1.5 ng mL{sup -1} concentration levels. Following a very simple procedure, involving only sample dilution, mean recoveries (n = 7) of 98 {+-} 3% and 99 {+-} 3%, respectively, were obtained.

  10. Nanostructured progesterone immunosensor using a tyrosinase-colloidal gold-graphite-Teflon biosensor as amperometric transducer

    International Nuclear Information System (INIS)

    Carralero, Veronica; Gonzalez-Cortes, Araceli; Yanez-Sedeno, Paloma; Pingarron, Jose M.

    2007-01-01

    A novel progesterone immunosensor using a colloidal gold-graphite-Teflon-tyrosinase composite biosensor as amperometric transducer is reported. A sequential competitive configuration between the analyte and progesterone labelled with alkaline phosphatase (AP) was used. Phenyl phosphate was employed as the AP-substrate and the enzyme reaction product, phenol, was oxidized by tyrosinase to o-quinone, which is subsequently reduced at -0.1 V at the biocomposite electrode. Variables such as the concentration of phenyl phosphate, the amount of antibody attached to the electrode surface, immersion time in a 2% BSA solution, working pH and incubation times in progesterone and AP conjugate were optimized. A linear calibration graph for progesterone was obtained between 0 and 40 ng mL -1 with a slope value of -82.3 nA ng -1 mL, and a detection limit of 0.43 ng mL -1 . The time needed to reach the steady-state current from the addition of phenyl phosphate was 30-40 s. These analytical characteristics improve substantially those reported for other progesterone immunosensors. A lifetime of 14 days with no need to apply any regeneration procedure was also achieved. The usefulness of the immunosensor was evaluated by determining progesterone in milk samples spiked with the analyte at 5.0 and 1.5 ng mL -1 concentration levels. Following a very simple procedure, involving only sample dilution, mean recoveries (n = 7) of 98 ± 3% and 99 ± 3%, respectively, were obtained

  11. A Single-Chip CMOS Pulse Oximeter with On-Chip Lock-In Detection

    Directory of Open Access Journals (Sweden)

    Diwei He

    2015-07-01

    Full Text Available Pulse oximetry is a noninvasive and continuous method for monitoring the blood oxygen saturation level. This paper presents the design and testing of a single-chip pulse oximeter fabricated in a 0.35 µm CMOS process. The chip includes photodiode, transimpedance amplifier, analogue band-pass filters, analogue-to-digital converters, digital signal processor and LED timing control. The experimentally measured AC and DC characteristics of individual circuits including the DC output voltage of the transimpedance amplifier, transimpedance gain of the transimpedance amplifier, and the central frequency and bandwidth of the analogue band-pass filters, show a good match (within 1% with the circuit simulations. With modulated light source and integrated lock-in detection the sensor effectively suppresses the interference from ambient light and 1/f noise. In a breath hold and release experiment the single chip sensor demonstrates consistent and comparable performance to commercial pulse oximetry devices with a mean of 1.2% difference. The single-chip sensor enables a compact and robust design solution that offers a route towards wearable devices for health monitoring.

  12. A Single-Chip CMOS Pulse Oximeter with On-Chip Lock-In Detection.

    Science.gov (United States)

    He, Diwei; Morgan, Stephen P; Trachanis, Dimitrios; van Hese, Jan; Drogoudis, Dimitris; Fummi, Franco; Stefanni, Francesco; Guarnieri, Valerio; Hayes-Gill, Barrie R

    2015-07-14

    Pulse oximetry is a noninvasive and continuous method for monitoring the blood oxygen saturation level. This paper presents the design and testing of a single-chip pulse oximeter fabricated in a 0.35 µm CMOS process. The chip includes photodiode, transimpedance amplifier, analogue band-pass filters, analogue-to-digital converters, digital signal processor and LED timing control. The experimentally measured AC and DC characteristics of individual circuits including the DC output voltage of the transimpedance amplifier, transimpedance gain of the transimpedance amplifier, and the central frequency and bandwidth of the analogue band-pass filters, show a good match (within 1%) with the circuit simulations. With modulated light source and integrated lock-in detection the sensor effectively suppresses the interference from ambient light and 1/f noise. In a breath hold and release experiment the single chip sensor demonstrates consistent and comparable performance to commercial pulse oximetry devices with a mean of 1.2% difference. The single-chip sensor enables a compact and robust design solution that offers a route towards wearable devices for health monitoring.

  13. Covalent immobilisation of antibodies in Teflon-FEP microfluidic devices for the sensitive quantification of clinically relevant protein biomarkers.

    Science.gov (United States)

    Pivetal, Jeremy; Pereira, Filipa M; Barbosa, Ana I; Castanheira, Ana P; Reis, Nuno M; Edwards, Alexander D

    2017-03-13

    This study reports for the first time the sensitive colorimetric and fluorescence detection of clinically relevant protein biomarkers by sandwich immunoassays using the covalent immobilisation of antibodies onto the fluoropolymer surface inside Teflon®-FEP microfluidic devices. Teflon®-FEP has outstanding optical transparency ideal for high-sensitivity colorimetric and fluorescence bioassays, however this thermoplastic is regarded as chemically inert and very hydrophobic. Covalent immobilisation can offer benefits over passive adsorption to plastic surfaces by allowing better control over antibody density, orientation and analyte binding capacity, and so we tested a range of different and novel covalent immobilisation strategies. We first functionalised the inner surface of a 10-bore, 200 μm internal diameter FEP microcapillary film with high-molecular weight polyvinyl alcohol (PVOH) without changing the outstanding optical transparency of the device delivered by the matched refractive index of FEP and water. Glutaraldehyde immobilisation was compared with the use of photoactivated linkers and NHS-ester crosslinkers for covalently immobilising capture antibodies onto PVOH. Three clinically relevant sandwich ELISAs were tested against the cytokine IL-1β, the myocardial infarct marker cardiac troponin I (cTnI), and the chronic heart failure marker brain natriuretic peptide (BNP). Overall, glutaraldehyde immobilisation was effective for BNP assays, but yielded unacceptable background for IL-1β and cTnI assays caused by direct binding of the biotinylated detection antibody to the modified PVOH surface. We found NHS-ester groups reacted with APTES-treated PVOH coated fluoropolymers. This facilitated a novel method for capture antibody immobilisation onto fluoropolymer devices using a bifunctional NHS-maleimide crosslinker. The density of covalently immobilised capture antibodies achieved using PVOH/APTES/NHS/maleimide approached levels seen with passive adsorption

  14. The Holding Power of Anchors

    Indian Academy of Sciences (India)

    The efficiency of an anchor may be expressed as the ratio (holding force + weight of anchor). In dry sand .... the market at the beginning of the coming season in three sizes, namely 20, 35 and. 60 lb. These are ... Taylor frozen-flow hypothesis.

  15. The Capability to Hold Property

    NARCIS (Netherlands)

    Claassen, Rutger

    2015-01-01

    This paper discusses the question of whether a capability theory of justice (such as that of Martha Nussbaum) should accept a basic “capability to hold property.” Answering this question is vital for bridging the gap between abstract capability theories of justice and their institutional

  16. Price of forest chips decreasing

    International Nuclear Information System (INIS)

    Hakkila, P.

    2001-01-01

    Use of forest chips was studied in 1999 in the national Puuenergia (Wood Energy) research program. Wood combusting heating plants were questioned about are the main reasons restricting the increment of the use of forest chips. Heating plants, which did not use forest chips at all or which used less than 250 m 3 (625 bulk- m 3 ) in 1999 were excluded. The main restrictions for additional use of forest chips were: too high price of forest chips; lack of suppliers and/or uncertainty of deliveries; technical problems of reception and processing of forest chips; insufficiency of boiler output especially in winter; and unsatisfactory quality of chips. The price of forest chips becomes relatively high because wood biomass used for production of forest chips has to be collected from wide area. Heavy equipment has to be used even though small fragments of wood are processed, which increases the price of chips. It is essential for forest chips that the costs can be pressed down because competition with fossil fuels, peat and industrial wood residues is hard. Low market price leads to the situation in which forest owner gets no price of the raw material, the entrepreneurs operate at the limit of profitability and renovation of machinery is difficult, and forest chips suppliers have to sell the chips at prime costs. Price of forest chips has decreased significantly during the past decade. Nominal price of forest chips is now lower than two decades ago. The real price of chips has decreased even more than the nominal price, 35% during the past decade and 20% during the last five years. Chips, made of small diameter wood, are expensive because the price includes the felling costs and harvesting is carried out at thinning lots. Price is especially high if chips are made of delimbed small diameter wood due to increased the work and reduced amount of chips. The price of logging residue chips is most profitable because cutting does not cause additional costs. Recovery of chips is

  17. Optimal selection of TLD chips

    International Nuclear Information System (INIS)

    Phung, P.; Nicoll, J.J.; Edmonds, P.; Paris, M.; Thompson, C.

    1996-01-01

    Large sets of TLD chips are often used to measure beam dose characteristics in radiotherapy. A sorting method is presented to allow optimal selection of chips from a chosen set. This method considers the variation

  18. Development of quality assurance procedures for thermoluminescent CaSO sub 4 :Dy-teflon skived tape dosemeter

    Energy Technology Data Exchange (ETDEWEB)

    Nagpal, J.S.; Popli, K.L.; Kher, R.K.; Varadharajan, G. (Bhabha Atomic Research Centre, Bombay (India). Div. of Radiological Protection)

    1992-01-01

    CaSO{sub 4}:Dy-Teflon TLD dosemeter material has been manufactured locally in a 0.4 mm thick continuous tape form. Fourteen batches have been examined for physical thickness, density, spectral transmission, diffuse optical density, beta transmission and TL output per unit area for evolving a procedure for quality assurance of the TLD element for large scale production. With the exception of two batches, the TL output per unit area of the tape for a number of batches lies within {+-}7% of that for a standard batch. (author).

  19. Biliary drainage by teflon endoprosthesis in obstructive jaundice - experiences in 69 patients treated by PTCD or ERCD

    Energy Technology Data Exchange (ETDEWEB)

    Rupp, N; Kramann, B; Gullotta, U; Reiser, M

    1983-02-01

    In 69 patients with extrahepatic biliary obstruction a specially designed teflon tube, the endoprosthesis, was inserted across the ductal stenosis either by percutaneous or by endoscopic route to reduce jaundice. After gaining experience our success rate of stent placement was more than 90%. Compared with catheter drainage the endoprosthesis worked faster and more efficiently, while in palliative treatment the quality of life of the patient improved and secondary cholangitis was prevented. The rate of significant long-term stent obstruction can be tolerated in view of the expected life span of four months as an average in our material.

  20. Smart vision chips: An overview

    Science.gov (United States)

    Koch, Christof

    1994-01-01

    This viewgraph presentation presents four working analog VLSI vision chips: (1) time-derivative retina, (2) zero-crossing chip, (3) resistive fuse, and (4) figure-ground chip; work in progress on computing motion and neuromorphic systems; and conceptual and practical lessons learned.

  1. A one-step strategy for ultra-fast and low-cost mass production of plastic membrane microfluidic chips.

    Science.gov (United States)

    Hu, Chong; Lin, Sheng; Li, Wanbo; Sun, Han; Chen, Yangfan; Chan, Chiu-Wing; Leung, Chung-Hang; Ma, Dik-Lung; Wu, Hongkai; Ren, Kangning

    2016-10-05

    An ultra-fast, extremely cost-effective, and environmentally friendly method was developed for fabricating flexible microfluidic chips with plastic membranes. With this method, we could fabricate plastic microfluidic chips rapidly (within 12 seconds per piece) at an extremely low cost (less than $0.02 per piece). We used a heated perfluoropolymer perfluoroalkoxy (often called Teflon PFA) solid stamp to press a pile of two pieces of plastic membranes, low density polyethylene (LDPE) and polyethylene terephthalate (PET) coated with an ethylene-vinyl acetate copolymer (EVA). During the short period of contact with the heated PFA stamp, the pressed area of the membranes permanently bonded, while the LDPE membrane spontaneously rose up at the area not pressed, forming microchannels automatically. These two regions were clearly distinguishable even at the micrometer scale so we were able to fabricate microchannels with widths down to 50 microns. This method combines the two steps in the conventional strategy for microchannel fabrication, generating microchannels and sealing channels, into a single step. The production is a green process without using any solvent or generating any waste. Also, the chips showed good resistance against the absorption of Rhodamine 6G, oligonucleotides, and green fluorescent protein (GFP). We demonstrated some typical microfluidic manipulations with the flexible plastic membrane chips, including droplet formation, on-chip capillary electrophoresis, and peristaltic pumping for quantitative injection of samples and reagents. In addition, we demonstrated convenient on-chip detection of lead ions in water samples by a peristaltic-pumping design, as an example of the application of the plastic membrane chips in a resource-limited environment. Due to the high speed and low cost of the fabrication process, this single-step method will facilitate the mass production of microfluidic chips and commercialization of microfluidic technologies.

  2. 31 CFR 800.217 - Hold.

    Science.gov (United States)

    2010-07-01

    ... and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF INVESTMENT... FOREIGN PERSONS Definitions § 800.217 Hold. The terms hold(s) and holding mean legal or beneficial ownership, whether direct or indirect, whether through fiduciaries, agents, or other means. ...

  3. SPECIALIZATION AND SUSTAINABLE DEVELOPMENT OF AGRICULTURAL HOLDINGS

    Directory of Open Access Journals (Sweden)

    Zofia Kołoszko-Chomentowska

    2016-03-01

    Full Text Available In the present article, an attempt was made to assess the sustainability of agricultural holdings with diff erent directions of production. Agricultural holdings in the Podlaskie voivodeship registered in the FADN system in 2011–2012 were investigated. Assessment accounted for agroecological indicators (share of permanent grasslands, share of cereals in crops, soil coverage with vegetation, stock density and economic indicators (profi tableness of land and labor. Analysis was conducted according to a classifi cation into agricultural holding types: fi eldcrops, dairy cattle, and granivores. Fieldcrop and granivore holdings achieved more favourable environmental sustainability indicators. Holdings specializing in dairy cattle breeding posed a threat to the natural environment, mainly due to their excessive stock density. Economic sustainability assessment showed that granivore holdings were assessed most favorably. In these holdings, holding income per full-time worker was 37% greater than in fi eldcrop holdings and 57% greater than in dairy cattle holdings.

  4. ATR FT-IR spectroscopy on Vmh2 hydrophobin self-assembled layers for Teflon membrane bio-functionalization

    International Nuclear Information System (INIS)

    Portaccio, M.; Gravagnuolo, A.M.; Longobardi, S.; Giardina, P.; Rea, I.; De Stefano, L.; Cammarota, M.; Lepore, M.

    2015-01-01

    Graphical abstract: - Highlights: • Hydrophobin self-assembled layers on Teflon in different preparation conditions were investigated. • ATR collection data geometry allowed samples examination without any particular preparation. • Amide content, lipid/amide and carbohydrate/amide ratios of the protein layer were estimated. • Secondary structure of protein was determined for the examined samples. • FT-IR demonstrated to be of extreme relevance in monitoring hydrophobin self-assembled layers preparation. - Abstract: Surface functionalization by layers of hydrophobins, amphiphilic proteins produced by fungi offers a promising and green strategy for fabrication of biomedical and bioanalytical devices. The layering process of the Vmh2 hydrophobin from Pleurotus ostreatus on Teflon membrane has been investigated by Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) spectroscopy. In particular, protein layers obtained with hydrophobin purified with two different procedures and in various coating conditions have been examined. The layers have been characterized by quantifying the amide I and amide II band area together with the lipid/amide ratio and carbohydrate/amide ratio. This characterization can be very useful in evaluating the best purification strategy and coating conditions. Moreover the analysis of the secondary structure of the layered protein using the deconvolution procedure of amide I band indicate the prevalent contribution from β-sheet state. The results inferred by infrared spectroscopy have been also confirmed by scanning electron microscopy imaging

  5. Comparison of PIXE and XRF analysis of airborne particulate matter samples collected on Teflon and quartz fibre filters

    Science.gov (United States)

    Chiari, M.; Yubero, E.; Calzolai, G.; Lucarelli, F.; Crespo, J.; Galindo, N.; Nicolás, J. F.; Giannoni, M.; Nava, S.

    2018-02-01

    Within the framework of research projects focusing on the sampling and analysis of airborne particulate matter, Particle Induced X-ray Emission (PIXE) and Energy Dispersive X-ray Fluorescence (ED-XRF) techniques are routinely used in many laboratories throughout the world to determine the elemental concentration of the particulate matter samples. In this work an inter-laboratory comparison of the results obtained from analysing several samples (collected on both Teflon and quartz fibre filters) using both techniques is presented. The samples were analysed by PIXE (in Florence, at the 3 MV Tandetron accelerator of INFN-LABEC laboratory) and by XRF (in Elche, using the ARL Quant'X EDXRF spectrometer with specific conditions optimized for specific groups of elements). The results from the two sets of measurements are in good agreement for all the analysed samples, thus validating the use of the ARL Quant'X EDXRF spectrometer and the selected measurement protocol for the analysis of aerosol samples. Moreover, thanks to the comparison of PIXE and XRF results on Teflon and quartz fibre filters, possible self-absorption effects due to the penetration of the aerosol particles inside the quartz fibre-filters were quantified.

  6. ATR FT-IR spectroscopy on Vmh2 hydrophobin self-assembled layers for Teflon membrane bio-functionalization

    Energy Technology Data Exchange (ETDEWEB)

    Portaccio, M., E-mail: marianna.portaccio@unina2.it [Dipartimento di Medicina Sperimentale – Seconda Università di Napoli, Via S.M. di Costantinopoli, 16-80134 Napoli (Italy); Gravagnuolo, A.M., E-mail: alfredomaria.gravagnuolo@unina.it [Dipartimento di Scienze Chimiche, Università “Federico II”, Via Cintia, 21- 80126 Napoli (Italy); Longobardi, S., E-mail: sara.longobardi@unina.it [Dipartimento di Scienze Chimiche, Università “Federico II”, Via Cintia, 21- 80126 Napoli (Italy); Giardina, P., E-mail: paola.giardina@unina.it [Dipartimento di Scienze Chimiche, Università “Federico II”, Via Cintia, 21- 80126 Napoli (Italy); Rea, I., E-mail: ilaria.rea@na.imm.cnr.it [Institute for Microelectronics and Microsystems, CNR, Via P. Castellino, 111-80131 Napoli (Italy); De Stefano, L., E-mail: luca.destefano@na.imm.cnr.it [Institute for Microelectronics and Microsystems, CNR, Via P. Castellino, 111-80131 Napoli (Italy); Cammarota, M., E-mail: marcella.cammarota@unina2.it [Dipartimento di Medicina Sperimentale – Seconda Università di Napoli, Via S.M. di Costantinopoli, 16-80134 Napoli (Italy); Lepore, M., E-mail: maria.lepore@unina2.it [Dipartimento di Medicina Sperimentale – Seconda Università di Napoli, Via S.M. di Costantinopoli, 16-80134 Napoli (Italy)

    2015-10-01

    Graphical abstract: - Highlights: • Hydrophobin self-assembled layers on Teflon in different preparation conditions were investigated. • ATR collection data geometry allowed samples examination without any particular preparation. • Amide content, lipid/amide and carbohydrate/amide ratios of the protein layer were estimated. • Secondary structure of protein was determined for the examined samples. • FT-IR demonstrated to be of extreme relevance in monitoring hydrophobin self-assembled layers preparation. - Abstract: Surface functionalization by layers of hydrophobins, amphiphilic proteins produced by fungi offers a promising and green strategy for fabrication of biomedical and bioanalytical devices. The layering process of the Vmh2 hydrophobin from Pleurotus ostreatus on Teflon membrane has been investigated by Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) spectroscopy. In particular, protein layers obtained with hydrophobin purified with two different procedures and in various coating conditions have been examined. The layers have been characterized by quantifying the amide I and amide II band area together with the lipid/amide ratio and carbohydrate/amide ratio. This characterization can be very useful in evaluating the best purification strategy and coating conditions. Moreover the analysis of the secondary structure of the layered protein using the deconvolution procedure of amide I band indicate the prevalent contribution from β-sheet state. The results inferred by infrared spectroscopy have been also confirmed by scanning electron microscopy imaging.

  7. A volumetric meter chip for point-of-care quantitative detection of bovine catalase for food safety control

    Energy Technology Data Exchange (ETDEWEB)

    Cui, Xingye; Hu, Jie; Choi, Jane Ru; Huang, Yalin; Wang, Xuemin [The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, 710049 (China); Bioinspired Engineering and Biomechanics Center (BEBC), Xi' an Jiaotong University, Xi' an, 710049 (China); Lu, Tian Jian, E-mail: tjlu@mail.xjtu.edu.cn [Bioinspired Engineering and Biomechanics Center (BEBC), Xi' an Jiaotong University, Xi' an, 710049 (China); Xu, Feng, E-mail: fengxu@mail.xjtu.edu.cn [The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, 710049 (China); Bioinspired Engineering and Biomechanics Center (BEBC), Xi' an Jiaotong University, Xi' an, 710049 (China)

    2016-09-07

    A volumetric meter chip was developed for quantitative point-of-care (POC) analysis of bovine catalase, a bioindicator of bovine mastitis, in milk samples. The meter chip displays multiplexed quantitative results by presenting the distance of ink bar advancement that is detectable by the naked eye. The meter chip comprises a poly(methyl methacrylate) (PMMA) layer, a double-sided adhesive (DSA) layer and a glass slide layer fabricated by the laser-etching method, which is typically simple, rapid (∼3 min per chip), and cost effective (∼$0.2 per chip). Specially designed “U shape” reaction cells are covered by an adhesive tape that serves as an on-off switch, enabling the simple operation of the assay. As a proof of concept, we employed the developed meter chip for the quantification of bovine catalase in raw milk samples to detect catalase concentrations as low as 20 μg/mL. The meter chip has great potential to detect various target analytes for a wide range of POC applications. - Highlights: • The meter chip is a standalone point-of-care diagnostic tool with visible readouts of quantification results. • A fast and low cost fabrication protocol (~3 min and ~$0.2 per chip) of meter chip was proposed. • The chip may hold the potential for rapid scaning of bovine mastitis in cattle farms for food safety control.

  8. A volumetric meter chip for point-of-care quantitative detection of bovine catalase for food safety control

    International Nuclear Information System (INIS)

    Cui, Xingye; Hu, Jie; Choi, Jane Ru; Huang, Yalin; Wang, Xuemin; Lu, Tian Jian; Xu, Feng

    2016-01-01

    A volumetric meter chip was developed for quantitative point-of-care (POC) analysis of bovine catalase, a bioindicator of bovine mastitis, in milk samples. The meter chip displays multiplexed quantitative results by presenting the distance of ink bar advancement that is detectable by the naked eye. The meter chip comprises a poly(methyl methacrylate) (PMMA) layer, a double-sided adhesive (DSA) layer and a glass slide layer fabricated by the laser-etching method, which is typically simple, rapid (∼3 min per chip), and cost effective (∼$0.2 per chip). Specially designed “U shape” reaction cells are covered by an adhesive tape that serves as an on-off switch, enabling the simple operation of the assay. As a proof of concept, we employed the developed meter chip for the quantification of bovine catalase in raw milk samples to detect catalase concentrations as low as 20 μg/mL. The meter chip has great potential to detect various target analytes for a wide range of POC applications. - Highlights: • The meter chip is a standalone point-of-care diagnostic tool with visible readouts of quantification results. • A fast and low cost fabrication protocol (~3 min and ~$0.2 per chip) of meter chip was proposed. • The chip may hold the potential for rapid scaning of bovine mastitis in cattle farms for food safety control.

  9. Teflon/SiO2 Bilayer Passivation for Improving the Electrical Reliability of Oxide TFTs Fabricated Using a New Two-Photomask Self-Alignment Process

    Science.gov (United States)

    Fan, Ching-Lin; Shang, Ming-Chi; Li, Bo-Jyun; Lin, Yu-Zuo; Wang, Shea-Jue; Lee, Win-Der; Hung, Bohr-Ran

    2015-01-01

    This study proposes a two-photomask process for fabricating amorphous indium–gallium–zinc oxide (a-IGZO) thin-film transistors (TFTs) that exhibit a self-aligned structure. The fabricated TFTs, which lack etching-stop (ES) layers, have undamaged a-IGZO active layers that facilitate superior performance. In addition, we demonstrate a bilayer passivation method that uses a polytetrafluoroethylene (Teflon) and SiO2 combination layer for improving the electrical reliability of the fabricated TFTs. Teflon was deposited as a buffer layer through thermal evaporation. The Teflon layer exhibited favorable compatibility with the underlying IGZO channel layer and effectively protected the a-IGZO TFTs from plasma damage during SiO2 deposition, resulting in a negligible initial performance drop in the a-IGZO TFTs. Compared with passivation-free a-IGZO TFTs, passivated TFTs exhibited superior stability even after 168 h of aging under ambient air at 95% relative humidity. PMID:28788026

  10. Teflon/SiO₂ Bilayer Passivation for Improving the Electrical Reliability of Oxide TFTs Fabricated Using a New Two-Photomask Self-Alignment Process.

    Science.gov (United States)

    Fan, Ching-Lin; Shang, Ming-Chi; Li, Bo-Jyun; Lin, Yu-Zuo; Wang, Shea-Jue; Lee, Win-Der; Hung, Bohr-Ran

    2015-04-13

    This study proposes a two-photomask process for fabricating amorphous indium-gallium-zinc oxide (a-IGZO) thin-film transistors (TFTs) that exhibit a self-aligned structure. The fabricated TFTs, which lack etching-stop (ES) layers, have undamaged a-IGZO active layers that facilitate superior performance. In addition, we demonstrate a bilayer passivation method that uses a polytetrafluoroethylene (Teflon) and SiO₂ combination layer for improving the electrical reliability of the fabricated TFTs. Teflon was deposited as a buffer layer through thermal evaporation. The Teflon layer exhibited favorable compatibility with the underlying IGZO channel layer and effectively protected the a-IGZO TFTs from plasma damage during SiO₂ deposition, resulting in a negligible initial performance drop in the a-IGZO TFTs. Compared with passivation-free a-IGZO TFTs, passivated TFTs exhibited superior stability even after 168 h of aging under ambient air at 95% relative humidity.

  11. Teflon/SiO2 Bilayer Passivation for Improving the Electrical Reliability of Oxide TFTs Fabricated Using a New Two-Photomask Self-Alignment Process

    Directory of Open Access Journals (Sweden)

    Ching-Lin Fan

    2015-04-01

    Full Text Available This study proposes a two-photomask process for fabricating amorphous indium–gallium–zinc oxide (a-IGZO thin-film transistors (TFTs that exhibit a self-aligned structure. The fabricated TFTs, which lack etching-stop (ES layers, have undamaged a-IGZO active layers that facilitate superior performance. In addition, we demonstrate a bilayer passivation method that uses a polytetrafluoroethylene (Teflon and SiO2 combination layer for improving the electrical reliability of the fabricated TFTs. Teflon was deposited as a buffer layer through thermal evaporation. The Teflon layer exhibited favorable compatibility with the underlying IGZO channel layer and effectively protected the a-IGZO TFTs from plasma damage during SiO2 deposition, resulting in a negligible initial performance drop in the a-IGZO TFTs. Compared with passivation-free a-IGZO TFTs, passivated TFTs exhibited superior stability even after 168 h of aging under ambient air at 95% relative humidity.

  12. Performance evaluation of vertical feed fully automated TLD badge reader using 0.8 and 0.4 mm teflon embedded CaSO4:Dy dosimeters

    International Nuclear Information System (INIS)

    Ratna, P.; More, Vinay; Kulkarni, M.S.

    2012-01-01

    The personnel monitoring of more than 80,000 radiation workers in India is at present carried out by semi-automated TLD badge Reader systems (TLDBR-7B) developed by Radiation Safety Systems Division, Bhabha Atomic Research Centre. More than 60 such reader systems are in use in all the personnel monitoring centers in the country. Radiation Safety Systems Division also developed the fully automated TLD badge reader based on a new TLD badge having built-in machine readable ID code (in the form of 16x3 hole pattern). This automated reader is designed with minimum of changes in the electronics and mechanical hardware in the semiautomatic version (TLDBR-7B) so that such semi-automatic readers can be easily upgraded to the fully automated versions by using the new TLD badge with ID code. The reader was capable of reading 50 TLD cards in 90 minutes. Based on the feedback from the users, a new model of frilly automated TLD badge Reader (model VEFFA-10) is designed which is an improved version of the previously reported fully Automated TLD badge reader. This VEFFA-10 PC based Reader incorporates vertical loading of TLD bards having machine readable ID code. In this new reader, a vertical rack, which can hold 100 such cards, is mounted from the right side of the reader system. The TLD card falls into the channel by gravity from where it is taken to the reading position by rack and pinion method. After the readout, the TLD card is dropped in a eject tray. The reader employs hot N 2 gas heating method and the gas flow is controlled by a specially designed digital gas flow meter on the front panel of the reader system. The system design is very compact and simple and card stuck up problem is totally eliminated in the reader system. The reader has a number of self-diagnostic features to ensure a high degree of reliability. This paper reports the performance evaluation of the Reader using 0.4 mm thick Teflon embedded CaSO 4 :Dy TLD cards instead of 0.8 mm cards

  13. Do More Economists Hold Stocks?

    DEFF Research Database (Denmark)

    Christiansen, Charlotte; Joensen, Juanna Schröter; Rangvid, Jesper

    A unique data set enables us to test the hypothesis that more economists than otherwise identical investors hold stocks due to informational advantages. We confirm that economists have a significantly higher probability of participating in the stock market than investors with any other education......, even when controlling for several background characteristics. We make use of a large register-based panel data set containing detailed information on the educational attainments and various financial and socioeconomic variables. We model the stock market participation decision by the probit model...

  14. Preservation of forest wood chips

    Energy Technology Data Exchange (ETDEWEB)

    Kofman, P.D.; Thomsen, I.M.; Ohlsson, C.; Leer, E.; Ravn Schmidt, E.; Soerensen, M.; Knudsen, P.

    1999-01-01

    As part of the Danish Energy Research Programme on biomass utilisation for energy production (EFP), this project concerns problems connected to the handling and storing of wood chips. In this project, the possibility of preserving wood chips of the Norway Spruce (Picea Abies) is addressed, and the potential improvements by anaerobic storage are tested. Preservation of wood chips aims at reducing dry matter losses from extensive heating during storage and to reduce production of fungal spores. Fungal spores pose a health hazards to workers handling the chips. Further the producers of wood chips are interested in such a method since it would enable them to give a guarantee for the delivery of homogeneous wood chips also during the winter period. Three different types of wood chips were stored airtight and further one of these was stored in accordance with normal practise and use as reference. The results showed that airtight storage had a beneficial impact on the quality of the chips: no redistribution of moisture, low dry matter losses, unfavourable conditions for microbial activity of most fungi, and the promotion of yeasts instead of fungi with airborne spores. Likewise the firing tests showed that no combustion problems, and no increased risk to the environment or to the health of staff is caused by anaerobic storage of wood chips. In all, the tests of the anaerobic storage method of forest wood chips were a success and a large-scale test of the method will be carried out in 1999. (au)

  15. Amdahl 470 Chip Package

    CERN Multimedia

    1975-01-01

    In the late 70s the larger IBM computers were water cooled. Amdahl, an IBM competitor, invented an air cooling technology for it's computers. His company worked hard, developing a computer that was faster and less expensive than the IBM System/360 mainframe computer systems. This object contains an actual Amdahl series 470 computer logic chip with an air cooling device mounted on top. The package leads and cooling tower are gold-plated.

  16. Silicon Chip-to-Chip Mode-Division Multiplexing

    DEFF Research Database (Denmark)

    Baumann, Jan Markus; Porto da Silva, Edson; Ding, Yunhong

    2018-01-01

    A chip-to-chip mode-division multiplexing connection is demonstrated using a pair of multiplexers/demultiplexers fabricated on the silicon-on-insulator platform. Successful mode multiplexing and demultiplexing is experimentally demonstrated, using the LP01, LP11a and LP11b modes.......A chip-to-chip mode-division multiplexing connection is demonstrated using a pair of multiplexers/demultiplexers fabricated on the silicon-on-insulator platform. Successful mode multiplexing and demultiplexing is experimentally demonstrated, using the LP01, LP11a and LP11b modes....

  17. Allowance Holdings and Transfers Data Inventory

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Allowance Holdings and Transfers Data Inventory contains measured data on holdings and transactions of allowances under the NOx Budget Trading Program (NBP), a...

  18. Microfluidic organ-on-chip technology for blood-brain barrier research.

    Science.gov (United States)

    van der Helm, Marinke W; van der Meer, Andries D; Eijkel, Jan C T; van den Berg, Albert; Segerink, Loes I

    2016-01-01

    Organs-on-chips are a new class of microengineered laboratory models that combine several of the advantages of current in vivo and in vitro models. In this review, we summarize the advances that have been made in the development of organ-on-chip models of the blood-brain barrier (BBBs-on-chips) and the challenges that are still ahead. The BBB is formed by specialized endothelial cells and separates blood from brain tissue. It protects the brain from harmful compounds from the blood and provides homeostasis for optimal neuronal function [corrected]. Studying BBB function and dysfunction is important for drug development and biomedical research. Microfluidic BBBs-on-chips enable real-time study of (human) cells in an engineered physiological microenvironment, for example incorporating small geometries and fluid flow as well as sensors. Examples of BBBs-on-chips in literature already show the potential of more realistic microenvironments and the study of organ-level functions. A key challenge in the field of BBB-on-chip development is the current lack of standardized quantification of parameters such as barrier permeability and shear stress. This limits the potential for direct comparison of the performance of different BBB-on-chip models to each other and existing models. We give recommendations for further standardization in model characterization and conclude that the rapidly emerging field of BBB-on-chip models holds great promise for further studies in BBB biology and drug development.

  19. Effects of Heating on Teflon(Registered Trademark) FEP Thermal Control Material from the Hubble Space Telescope

    Science.gov (United States)

    deGroh, Kim; Gaier, James R.; Hall, Rachelle L.; Norris, Mary Jo; Espe, Matthew P.; Cato, Daveen R.

    1999-01-01

    Metallized Teflon(Registered Trademark) FEP (fluorinated ethylene propylene) thermal control material on the Hubble Space Telescope (HST) is degrading in the space environment. Teflon(Registered Trademark) FEP thermal control blankets (space-facing FEP) retrieved during the first servicing mission (SM1) were found to be embrittled on solar facing surfaces and contained microscopic cracks. During the second servicing mission (SM2) astronauts noticed that the FEP outer layer of the multi-layer insulation (MLI) covering the telescope was cracked in many locations around the telescope. Large cracks were observed on the light shield, forward shell and equipment bays. A tightly curled piece of cracked FEP from the light shield was retrieved during SM2 and was severely embrittled, as witnessed by ground testing. A Failure Review Board (FRB) was organized to determine the mechanism causing the MLI degradation. Density, x-ray crystallinity and solid state nuclear magnetic resonance (NMR) analyses of FEP retrieved during SM1 were inconsistent with results of FEP retrieved during SM2. Because the retrieved SM2 material curled while in space, it experienced a higher temperature extreme during thermal cycling, estimated at 200 C, than the SM1 material, estimated at 50 C. An investigation on the effects of heating pristine and FEP exposed on HST was therefore conducted. Samples of pristine. SM1, and SM2 FEP were heated to 200 C and evaluated for changes in density and morphology. Elevated temperature exposure was found to have a major impact on the density of the retrieved materials. Characterization of polymer morphology of as-received and heated FEP samples by NMR provided results that were consistent with the density results. These findings have provided insight to the damage mechanisms of FEP in the space environment.

  20. Ultrasonic methods for locating hold-up

    International Nuclear Information System (INIS)

    Sinha, D.N.; Olinger, C.T.

    1995-01-01

    Hold-up remains one of the major contributing factors to unaccounted for materials and can be a costly problem in decontamination and decommissioning activities. Ultrasonic techniques are being developed to noninvasively monitor hold-up in process equipment where the inner surface of such equipment may be in contact with the hold-up material. These techniques may be useful in improving hold-up measurements as well as optimizing decontamination techniques

  1. ReseqChip: Automated integration of multiple local context probe data from the MitoChip array in mitochondrial DNA sequence assembly

    Directory of Open Access Journals (Sweden)

    Spang Rainer

    2009-12-01

    Full Text Available Abstract Background The Affymetrix MitoChip v2.0 is an oligonucleotide tiling array for the resequencing of the human mitochondrial (mt genome. For each of 16,569 nucleotide positions of the mt genome it holds two sets of four 25-mer probes each that match the heavy and the light strand of a reference mt genome and vary only at their central position to interrogate all four possible alleles. In addition, the MitoChip v2.0 carries alternative local context probes to account for known mtDNA variants. These probes have been neglected in most studies due to the lack of software for their automated analysis. Results We provide ReseqChip, a free software that automates the process of resequencing mtDNA using multiple local context probes on the MitoChip v2.0. ReseqChip significantly improves base call rate and sequence accuracy. ReseqChip is available at http://code.open-bio.org/svnweb/index.cgi/bioperl/browse/bioperl-live/trunk/Bio/Microarray/Tools/. Conclusions ReseqChip allows for the automated consolidation of base calls from alternative local mt genome context probes. It thereby improves the accuracy of resequencing, while reducing the number of non-called bases.

  2. Electrochemical detection on electrowetting-on-dielectric digital microfluidic chip.

    Science.gov (United States)

    Karuwan, Chanpen; Sukthang, Kreeta; Wisitsoraat, Anurat; Phokharatkul, Ditsayut; Patthanasettakul, Viyapol; Wechsatol, Wishsanuruk; Tuantranont, Adisorn

    2011-06-15

    In this work, the use of three-electrode electrochemical sensing system with an electrowetting-on-dielectric (EWOD) digital microfluidic device is reported for quantitative analysis of iodide. T-junction EWOD mixer device was designed using arrays of 50-μm spaced square electrodes for mixing buffer reagent and analyte droplets. For fabrication of EWOD chips, 5-μm thick silver EWOD electrodes were formed on a glass substrate by means of sputtering and lift-off process. PDMS and Teflon thin films were then coated on the electrodes by spin coating to yield hydrophobic surface. An external three-electrode system consisting of Au working, Ag reference and Pt auxiliary wires were installed over EWOD electrodes at the end of T-junction mixer. In experiment, a few-microliter droplets of Tris buffer and iodide solutions were moved toward the mixing junction and transported toward electrochemical electrodes by EWOD process. A short processing time within seconds was achieved at EWOD applied voltage of 300V. The analyte droplets mixed with different concentrations were successfully analyzed by cyclic voltametry. Therefore, the combination of EWOD digital microfluidic and electrochemical sensing system has successfully been demonstrated for rapid chemical analysis with minimal reagent consumption. Copyright © 2011 Elsevier B.V. All rights reserved.

  3. Comparison of stapes prostheses: a retrospective analysis of individual audiometric results obtained after stapedotomy by implantation of a gold and a teflon piston

    NARCIS (Netherlands)

    de Bruijn, A. J.; Tange, R. A.; Dreschler, W. A.

    1999-01-01

    PURPOSE: Evaluation of hearing results after implantation of a Teflon piston (type Causse; Xomed Surgical Products, Jacksonville, FL) and of a pure gold piston (K-piston; Heinz Kurz GmbH Medizintechnik, Dusslingen, Germany), both with a shaft diameter of 0.4 mm in cases of otosclerosis requiring

  4. pH dependence of the kinetics of interfacial tension changes during protein adsorption from sessile droplets on FEP-Teflon

    NARCIS (Netherlands)

    VanderVegt, W; Norde, W; VanderMei, HC; Busscher, HJ

    Interfacial tension changes during protein adsorption at both the solid-liquid and the liquid-vapor interface were measured simultaneously by ADSA-P from sessile droplets of protein solutions on fluoroethylenepropylene-Teflon. Four globular proteins of similar size, viz. lysozyme, ribonuclease,

  5. Evaluation of the OvineSNP50 chip for use in four South African ...

    African Journals Online (AJOL)

    Relatively rapid and cost-effective genotyping using the OvineSNP50 chip holds great promise for the South African sheep industry and research partners. However, SNP ascertainment bias may influence inferences from the genotyping results of South African sheep breeds. Therefore, samples from Dorper, Namaqua ...

  6. ADJUSTABLE CHIP HOLDER

    DEFF Research Database (Denmark)

    2009-01-01

    An adjustable microchip holder for holding a microchip is provided having a plurality of displaceable interconnection pads for connecting the connection holes of a microchip with one or more external devices or equipment. The adjustable microchip holder can fit different sizes of microchips...

  7. Experiment list: SRX122496 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available || chip antibody=Rel || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip ant...ibody catalog number 1=sc-71 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc

  8. 78 FR 23162 - Supervision and Regulation Assessments for Bank Holding Companies and Savings and Loan Holding...

    Science.gov (United States)

    2013-04-18

    ... bank holding company's Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) forms; \\3... Balance Sheet of the BHC's Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) (OMB No... holding companies with $50 billion or more in total consolidated assets, and nonbank financial companies...

  9. ALICE Holds Up to Challenge

    CERN Multimedia

    2006-01-01

    ALICE's main austenitic stainless steel support structure (the Space Frame) has recently gone through many tests that proved quite challenging: insuring the structure is sound and lowering it horizontally into the ALICE cavern. This structure is constructed to hold the large volume detectors, such as the Time Projection Chamber, Transition Radiation Detector and Time of Flight inside the ALICE solenoid magnet. After the final assembly at CERN, two large mobile cranes were needed for the job of lifting and turning the 14 tonne frame onto its side. Once shifted, it was placed in Building SX2, one of the surface assembly areas designated for ALICE. The structure, which is 8 m in diameter and 7 m long, underwent many tests in its new position. Geometric control tests were performed by measuring each of the 18 cells and placing wooden or metal samples constructed to the same dimensions as the real thing inside the structure. The most important check was the movement of the real Time Projection Chamber from its s...

  10. Chips with everything

    CERN Document Server

    CERN. Geneva

    2007-01-01

    In March 1972, Sir Robin Saxby gave a talk to the Royal Television Society called 'TV and Chips' about a 'state of the art' integrated circuit, containing 50 resistors and 50 transistors. Today's 'state of the art' chips contain up to a billion transistors. This enormous leap forward illustrates how dramatically the semiconductor industry has evolved in the past 34 years. The next 10 years are predicted to bring times of turbulent change for the industry, as more and more digital devices are used around the world. In this talk, Sir Robin will discuss the history of the Microchip Industry in parallel with ARM's history, demonstrating how a small European start-up can become a world player in the IT sector. He will also present his vision of important applications and developments in the next 20 years that are likely to become even more pervasive than the mobile phone is today, and will provide anecdotes and learning points from his own experience at ARM. About ARM: Sir Robin and a group of designers from Acorn...

  11. Stability of purgeable VOCs in water samples during pre-analytical holding: Part 1, Analysis by a commercial laboratory

    Energy Technology Data Exchange (ETDEWEB)

    West, O.R.; Bayne, C.K.; Siegrist, R.L.; Holden, W.L.; Scarborough, S.S. [Oak Ridge National Lab., TN (United States); Bottrell, D.W. [USDOE, Washington, DC (United States)

    1996-10-01

    This study was undertaken to examine the hypothesis that prevalent and priority purgeable VOCs in properly preserved water samples are stable for at least 28 days. (VOCs are considered stable if concentrations do not change by more than 10%.) Surface water was spiked with 44 purgeable VOCs. Results showed that the measurement of 35 out of 44 purgeable VOCs in properly preserved water samples (4 C, 250 mg NaHSO{sub 4}, no headspace in 40 mL VOC vials with 0.010-in. Teflon-lined silicone septum caps) will not be affected by sample storage for 28 days. Larger changes (>10%) and low practical reporting times were observed for a few analytes, e.g. acrolein, CS{sub 2}, vinyl acetate, etc.; these also involve other analytical problems. Advantages of a 28-day (compared to 14-day) holding time are pointed out.

  12. Excess cash holdings and shareholder value

    OpenAIRE

    Lee, Edward; Powell, Ronan

    2011-01-01

    We examine the determinants of corporate cash holdings in Australia and the impact on shareholder wealth of holding excess cash. Our results show that a trade-off model best explains the level of a firm’s cash holdings in Australia. We find that 'transitory' excess cash firms earn significantly higher risk-adjusted returns compared to 'persistent' excess cash firms, suggesting that the market penalises firms that hoard cash. The marginal value of cash also declines with larger cash balances, ...

  13. Pelly Crossing wood chip boiler

    Energy Technology Data Exchange (ETDEWEB)

    1985-03-11

    The Pelly wood chip project has demonstrated that wood chips are a successful fuel for space and domestic water heating in a northern climate. Pelly Crossing was chosen as a demonstration site for the following reasons: its extreme temperatures, an abundant local supply of resource material, the high cost of fuel oil heating and a lack of local employment. The major obstacle to the smooth operation of the boiler system was the poor quality of the chip supply. The production of poor quality chips has been caused by inadequate operation and maintenance of the chipper. Dull knives and faulty anvil adjustments produced chips and splinters far in excess of the one centimetre size specified for the system's design. Unanticipated complications have caused costs of the system to be higher than expected by approximately $15,000. The actual cost of the project was approximately $165,000. The first year of the system's operation was expected to accrue $11,600 in heating cost savings. This estimate was impossible to confirm given the system's irregular operation and incremental costs. Consistent operation of the system for a period of at least one year plus the installation of monitoring devices will allow the cost effectiveness to be calculated. The wood chip system's impact on the environment was estimated to be minimal. Wood chip burning was considered cleaner and safer than cordwood burning. 9 refs., 6 figs., 6 tabs.

  14. Single chip camera active pixel sensor

    Science.gov (United States)

    Shaw, Timothy (Inventor); Pain, Bedabrata (Inventor); Olson, Brita (Inventor); Nixon, Robert H. (Inventor); Fossum, Eric R. (Inventor); Panicacci, Roger A. (Inventor); Mansoorian, Barmak (Inventor)

    2003-01-01

    A totally digital single chip camera includes communications to operate most of its structure in serial communication mode. The digital single chip camera include a D/A converter for converting an input digital word into an analog reference signal. The chip includes all of the necessary circuitry for operating the chip using a single pin.

  15. Ultra-thin chip technology and applications

    CERN Document Server

    2010-01-01

    Ultra-thin chips are the "smart skin" of a conventional silicon chip. This book shows how very thin and flexible chips can be fabricated and used in many new applications in microelectronics, microsystems, biomedical and other fields. It provides a comprehensive reference to the fabrication technology, post processing, characterization and the applications of ultra-thin chips.

  16. Isolation of human monocytes by double gradient centrifugation and their differentiation to macrophages in teflon-coated cell culture bags.

    Science.gov (United States)

    Menck, Kerstin; Behme, Daniel; Pantke, Mathias; Reiling, Norbert; Binder, Claudia; Pukrop, Tobias; Klemm, Florian

    2014-09-09

    Human macrophages are involved in a plethora of pathologic processes ranging from infectious diseases to cancer. Thus they pose a valuable tool to understand the underlying mechanisms of these diseases. We therefore present a straightforward protocol for the isolation of human monocytes from buffy coats, followed by a differentiation procedure which results in high macrophage yields. The technique relies mostly on commonly available lab equipment and thus provides a cost and time effective way to obtain large quantities of human macrophages. Briefly, buffy coats from healthy blood donors are subjected to a double density gradient centrifugation to harvest monocytes from the peripheral blood. These monocytes are then cultured in fluorinated ethylene propylene (FEP) Teflon-coated cell culture bags in the presence of macrophage colony-stimulating factor (M-CSF). The differentiated macrophages can be easily harvested and used for subsequent studies and functional assays. Important methods for quality control and validation of the isolation and differentiation steps will be highlighted within the protocol. In summary, the protocol described here enables scientists to routinely and reproducibly isolate human macrophages without the need for cost intensive tools. Furthermore, disease models can be studied in a syngeneic human system circumventing the use of murine macrophages.

  17. Individual monitoring and its quality assurance using thermoluminescent CaSO[sub 4]:Dy Teflon tape dosemeters in India

    Energy Technology Data Exchange (ETDEWEB)

    Nagpal, J.S.; Popli, K.L.; Varadharajan, G.; Kher, R.K.; Venkataraman, G. (Bhabha Atomic Research Centre, Bombay (India). Div. of Radiological Protection)

    1994-01-01

    CaSO[sub 4]:Dy Teflon thermoluminscence dosemeters have been fabricated indigenously in continuous tape form. TL response of the tape dosemeters to [beta] and [gamma] radiations has been studied as a function of the dosemeter thickness to arrive at its optimum value. A single 80 mg.cm[sup -2] thick tape dosemeter (51 mm x 17 mm) along with a mica strip replaces the earlier use of three 200 mg.cm[sup -2] thick disc dosemeters for routine individual monitoring. The tape cards have been in field use for two and half years. The performance characteristics of the cards under laboratory and field conditions are discussed. Dose computation algorithms have been developed to give whole-body dose (mGy) and skin dose (mGy)for photons and [beta] radiation respectively from the TL outputs of three dosimetric elements under 1000 mg.cm[sup -2] Cu + Al composite filter, 180 mg.cm[sup -2] Perspex and an open region in a cardholder. Results of the Quality Assurance Programme, covering various TL monitoring stations in India, are also presented. Based on ANSI criteria, only one outlier was observed over the past seven years. (Author).

  18. Effects of Post Heat Treatments on ZnO Thin-Films Grown on Zn-coated Teflon Substrates

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Ikhyun; Nam, Giwoong; Lee, Cheoleon; Kim, Dongwhan; Choi, Hyonkwang; Kim, Yangsoo; Leem, Jae-Young [Inje University, Gimhae (Korea, Republic of); Kim, Jin Soo [Chonbuk National University, Jeonju (Korea, Republic of); Kim, Jong Su [Yeungnam University, Gyeongsan (Korea, Republic of); Son, Jeong-Sik [Kyungwoon University, Gumi (Korea, Republic of)

    2015-06-15

    ZnO thin films were first grown on Zn-coated Teflon substrates using a spin-coating method, with various post-heating temperatures. The structural and optical properties of the ZnO thin films were then investigated using field-effect scanning-electron microscopy, X-ray diffractometry, and photoluminescence (PL) spectroscopy. The surface morphology of these ZnO thin films exhibited dendritic structures. With increasing post-heating temperature, all samples preferentially exhibited preferential c-axis orientation and increased residual tensile stress. All of the films exhibited preferential c-axis orientation, and the residual tensile stress of those increased with increasing post-heating temperature. The near-band-edge emission (NBE) peaks were red-shifted after post-heating treatment at 400 ℃. The intensity of the deep-level emission (DLE) peaks gradually decreased with increasing post- heating temperature. Moreover, the narrowest ‘full width at half maximum’ (FWHM) and the highest intensity ratio of the NBE to the DLE for thin films, were observed after post-heating at 400 ℃. The ZnO thin films fabricated with the 400 ℃ post-heating process provided the highest crystallinity and optical properties.

  19. Effects of gas–wall partitioning in Teflon tubing and instrumentation on time-resolved measurements of gas-phase organic compounds

    Directory of Open Access Journals (Sweden)

    D. Pagonis

    2017-12-01

    Full Text Available Recent studies have demonstrated that organic compounds can partition from the gas phase to the walls in Teflon environmental chambers and that the process can be modeled as absorptive partitioning. Here these studies were extended to investigate gas–wall partitioning of organic compounds in Teflon tubing and inside a proton-transfer-reaction mass spectrometer (PTR-MS used to monitor compound concentrations. Rapid partitioning of C8–C14 2-ketones and C11–C16 1-alkenes was observed for compounds with saturation concentrations (c∗ in the range of 3 × 104 to 1 × 107 µg m−3, causing delays in instrument response to step-function changes in the concentration of compounds being measured. These delays vary proportionally with tubing length and diameter and inversely with flow rate and c∗. The gas–wall partitioning process that occurs in tubing is similar to what occurs in a gas chromatography column, and the measured delay times (analogous to retention times were accurately described using a linear chromatography model where the walls were treated as an equivalent absorbing mass that is consistent with values determined for Teflon environmental chambers. The effect of PTR-MS surfaces on delay times was also quantified and incorporated into the model. The model predicts delays of an hour or more for semivolatile compounds measured under commonly employed conditions. These results and the model can enable better quantitative design of sampling systems, in particular when fast response is needed, such as for rapid transients, aircraft, or eddy covariance measurements. They may also allow estimation of c∗ values for unidentified organic compounds detected by mass spectrometry and could be employed to introduce differences in time series of compounds for use with factor analysis methods. Best practices are suggested for sampling organic compounds through Teflon tubing.

  20. Effects of gas-wall partitioning in Teflon tubing and instrumentation on time-resolved measurements of gas-phase organic compounds

    Science.gov (United States)

    Pagonis, Demetrios; Krechmer, Jordan E.; de Gouw, Joost; Jimenez, Jose L.; Ziemann, Paul J.

    2017-12-01

    Recent studies have demonstrated that organic compounds can partition from the gas phase to the walls in Teflon environmental chambers and that the process can be modeled as absorptive partitioning. Here these studies were extended to investigate gas-wall partitioning of organic compounds in Teflon tubing and inside a proton-transfer-reaction mass spectrometer (PTR-MS) used to monitor compound concentrations. Rapid partitioning of C8-C14 2-ketones and C11-C16 1-alkenes was observed for compounds with saturation concentrations (c∗) in the range of 3 × 104 to 1 × 107 µg m-3, causing delays in instrument response to step-function changes in the concentration of compounds being measured. These delays vary proportionally with tubing length and diameter and inversely with flow rate and c∗. The gas-wall partitioning process that occurs in tubing is similar to what occurs in a gas chromatography column, and the measured delay times (analogous to retention times) were accurately described using a linear chromatography model where the walls were treated as an equivalent absorbing mass that is consistent with values determined for Teflon environmental chambers. The effect of PTR-MS surfaces on delay times was also quantified and incorporated into the model. The model predicts delays of an hour or more for semivolatile compounds measured under commonly employed conditions. These results and the model can enable better quantitative design of sampling systems, in particular when fast response is needed, such as for rapid transients, aircraft, or eddy covariance measurements. They may also allow estimation of c∗ values for unidentified organic compounds detected by mass spectrometry and could be employed to introduce differences in time series of compounds for use with factor analysis methods. Best practices are suggested for sampling organic compounds through Teflon tubing.

  1. Inflation, operating cycle, and cash holdings

    Directory of Open Access Journals (Sweden)

    Yanchao Wang

    2014-12-01

    Full Text Available A corporate cash-holding strategy is a trade-off between the costs and benefits of holding cash. At the macrolevel, firms are inclined to adjust and optimize their cash-holding strategies in response to changes in purchasing power due to inflation. At the microlevel, the operating cycle, which indicates the speed and turnover of corporate cash flow, also influences the corporate cash-holding strategy. Firms flexibly adjust their cash-holding strategies in response to changes in the internal and external environment, which is referred to as the cash adjustment strategy. We examine these predicted relationships using a sample of listed firms in China’s stock market over the 1998–2009 period. Consistent with our predictions, the empirical results indicate a significant negative association between cash holdings and the CPI, but the relationship is reversed when the CPI reaches a certain level. There is also a U-shaped relationship between operating cycle and cash holdings, and this relationship is similarly influenced by changes in the inflation level. In examining the macroeconomic environment and microlevel firm-specific characteristics simultaneously, our findings supplement the literature on firms’ cash-holding strategies and provide theoretical and practical implications.

  2. Selected laboratory evaluations of the whole-water sample-splitting capabilities of a prototype fourteen-liter Teflon churn splitter

    Science.gov (United States)

    Horowitz, A.J.; Smith, J.J.; Elrick, K.A.

    2001-01-01

    A prototype 14-L Teflon? churn splitter was evaluated for whole-water sample-splitting capabilities over a range of sediment concentratons and grain sizes as well as for potential chemical contamination from both organic and inorganic constituents. These evaluations represent a 'best-case' scenario because they were performed in the controlled environment of a laboratory, and used monomineralic silica sand slurries of known concentration made up in deionized water. Further, all splitting was performed by a single operator, and all the requisite concentration analyses were performed by a single laboratory. The prototype Teflon? churn splitter did not appear to supply significant concentrations of either organic or inorganic contaminants at current U.S. Geological Survey (USGS) National Water Quality Laboratory detection and reporting limits when test samples were prepared using current USGS protocols. As with the polyethylene equivalent of the prototype Teflon? churn, the maximum usable whole-water suspended sediment concentration for the prototype churn appears to lie between 1,000 and 10,000 milligrams per liter (mg/L). Further, the maximum grain-size limit appears to lie between 125- and 250-microns (m). Tests to determine the efficacy of the valve baffle indicate that it must be retained to facilitate representative whole-water subsampling.

  3. Tunable on chip optofluidic laser

    DEFF Research Database (Denmark)

    Bakal, Avraham; Vannahme, Christoph; Kristensen, Anders

    2016-01-01

    On chip tunable laser is demonstrated by realizing a microfluidic droplet array. The periodicity is controlled by the pressure applied to two separate inlets, allowing to tune the lasing frequency over a broad spectral range.......On chip tunable laser is demonstrated by realizing a microfluidic droplet array. The periodicity is controlled by the pressure applied to two separate inlets, allowing to tune the lasing frequency over a broad spectral range....

  4. View of the inner part of the VO prototype box. The WLS fibers wrapped up in teflon strips are coupled to connectors which ensure the passage of the light outside the box and its transfer in optical fibers.

    CERN Multimedia

    2004-01-01

    View of the inner part of the VO prototype box. The WLS fibers wrapped up in teflon strips are coupled to connectors which ensure the passage of the light outside the box and its transfer in optical fibers.

  5. Collective behaviors of book holding durations

    Science.gov (United States)

    Li, Ren-De; Guo, Qiang; Han, Jing-Ti; Liu, Jian-Guo

    2016-10-01

    Duration can directly reflect the collective reading behaviors of library user book holding. In this paper, by introducing the burstiness and memory coefficients, we empirically investigate the collective book holding behavior of three university libraries. The statistical results show that there are similar properties among the students with different backgrounds, presenting the burstiness = - 0.2 and memory = 0.5 for three datasets, which indicates that memory and random effects coexist in student book holding durations. In addition, we analyze the behavior patterns without duplicate durations by merging a series of books borrowed and returned at the same time. The results show the average burstiness B increases to -0.16 and memory M drops to 0.16 for three datasets, which indicates that both duplicate behavior and student's preference affect the memory effect. Furthermore, we present a model which assumes student's next book holding duration follows the previous one with probability p, and with probability 1 - p, the student would hold the book independently. The experimental results show that the presented model can reproduce the burstiness and memory effect of student book holding durations when p = 0.5 for empirical datasets and p = 0.2 for de-duplicate datasets, which indicate that the student's preferential holding behavior occurs with the probability p. This work helps in deeply understanding the regularity of duration-based human behaviors.

  6. Solar Effects on Tensile and Optical Properties of Hubble Space Telescope Silver-Teflon(Registered Trademark) Insulation

    Science.gov (United States)

    deGroh, Kim, K.; Dever, Joyce A.; Snyder, Aaron; Kaminski, Sharon; McCarthy, Catherine E.; Rapoport, Alison L.; Rucker, Rochelle N.

    2006-01-01

    A section of the retrieved Hubble Space Telescope (HST) solar array drive arm (SADA) multilayer insulation (MLI), which experienced 8.25 years of space exposure, was analyzed for environmental durability of the top layer of silver-Teflon (DuPont) fluorinated ethylene propylene (Ag-FEP). Because the SADA MLI had solar and anti-solar facing surfaces and was exposed to the space environment for a long duration, it provided a unique opportunity to study solar effects on the environmental degradation of Ag-FEP, a commonly used spacecraft thermal control material. Data obtained included tensile properties, solar absorptance, surface morphology and chemistry. The solar facing surface was found to be extremely embrittled and contained numerous through-thickness cracks. Tensile testing indicated that the solar facing surface lost 60% of its mechanical strength and 90% of its elasticity while the anti-solar facing surface had ductility similar to pristine FEP. The solar absorptance of both the solar facing surface (0.155 plus or minus 0.032) and the anti-solar facing surface (0.208 plus or minus 0.012) were found to be greater than pristine Ag-FEP (0.074). Solar facing and anti-solar facing surfaces were microscopically textured, and locations of isolated contamination were present on the anti-solar surface resulting in increased localized texturing. Yet, the overall texture was significantly more pronounced on the solar facing surface indicating a synergistic effect of combined solar exposure and increased heating with atomic oxygen erosion. The results indicate a very strong dependence of degradation, particularly embrittlement, upon solar exposure with orbital thermal cycling having a significant effect.

  7. Analyses of Hubble Space Telescope Aluminized-Teflon Multilayer Insulation Blankets Retrieved After 19 Years of Space Exposure

    Science.gov (United States)

    de Groh, Kim K.; Perry, Bruce A.; Mohammed, Jelila S.; Banks, Bruce

    2015-01-01

    Since its launch in April 1990, the Hubble Space Telescope (HST) has made many important observations from its vantage point in low Earth orbit (LEO). However, as seen during five servicing missions, the outer layer of multilayer insulation (MLI) has become increasingly embrittled and has cracked in many areas. In May 2009, during the 5th servicing mission (called SM4), two MLI blankets were replaced with new insulation and the space-exposed MLI blankets were retrieved for degradation analyses by teams at NASA Glenn Research Center (GRC) and NASA Goddard Space Flight Center (GSFC). The retrieved MLI blankets were from Equipment Bay 8, which received direct sunlight, and Equipment Bay 5, which received grazing sunlight. Each blanket was divided into several regions based on environmental exposure and/or physical appearance. The aluminized-Teflon (DuPont, Wilmington, DE) fluorinated ethylene propylene (Al-FEP) outer layers of the retrieved MLI blankets have been analyzed for changes in optical, physical, and mechanical properties, along with chemical and morphological changes. Pristine and as-retrieved samples (materials) were heat treated to help understand degradation mechanisms. When compared to pristine material, the analyses have shown how the Al-FEP was severely affected by the space environment. Most notably, the Al-FEP was highly embrittled, fracturing like glass at strains of 1 to 8 percent. Across all measured properties, more significant degradation was observed for Bay 8 material as compared to Bay 5 material. This paper reviews the tensile and bend-test properties, density, thickness, solar absorptance, thermal emittance, x-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS) elemental composition measurements, surface and crack morphologies, and atomic oxygen erosion yields of the Al-FEP outer layer of the retrieved HST blankets after 19 years of space exposure.

  8. [Activity of amphotericin B and anidulafungin, alone and combined, against Candida tropicalis biofilms developed on Teflon® and titanium].

    Science.gov (United States)

    Fernández-Rivero, Marcelo Ernesto; Del Pozo, José L; Valentín, Amparo; Fornes, Victoria; Molina de Diego, Araceli; Pemán, Javier; Cantón, Emilia

    Current therapeutic strategies have a limited efficacy against Candida biofilms that form on the surfaces of biomedical devices. Few studies have evaluated the activity of antifungal agents against Candida tropicalis biofilms. To evaluate the activity of amphotericin B (AMB) and anidulafungin (AND), alone and in combination, against C. tropicalis biofilms developed on polytetrafluoroethylene (teflon -PTFE) and titanium surfaces using time-kill assays. Assays were performed using the CDC Biofilm Reactor equipped with PTFE and titanium disks with C. tropicalis biofilms after 24h of maturation. The concentrations assayed were 40mg/l for AMB and 8mg/l for AND, both alone and combined. After 24, 48 and 72h of exposure to the antifungals, the cfu/cm 2 was determined by a vortexing-sonication procedure. AMB reduced biofilm viable cells attached to PTFE and titanium by ≥99% and AND by 89.3% on PTFE and 96.8% on titanium. The AMB+AND combination was less active than AMB alone, both on PTFE (decrease of cfu/cm 2 3.09 Log 10 vs. 1.08 when combined) and titanium (4.51 vs. 1.53 when combined), being the interaction irrelevant on both surfaces. AMB is more active than AND against C. tropicalis biofilms. Yeast killing rates are higher on titanium than on PTFE surfaces. The combination of AMB plus AND is less effective than AMB alone on both surfaces. Copyright © 2017 Asociación Española de Micología. Publicado por Elsevier España, S.L.U. All rights reserved.

  9. Cache-aware network-on-chip for chip multiprocessors

    Science.gov (United States)

    Tatas, Konstantinos; Kyriacou, Costas; Dekoulis, George; Demetriou, Demetris; Avraam, Costas; Christou, Anastasia

    2009-05-01

    This paper presents the hardware prototype of a Network-on-Chip (NoC) for a chip multiprocessor that provides support for cache coherence, cache prefetching and cache-aware thread scheduling. A NoC with support to these cache related mechanisms can assist in improving systems performance by reducing the cache miss ratio. The presented multi-core system employs the Data-Driven Multithreading (DDM) model of execution. In DDM thread scheduling is done according to data availability, thus the system is aware of the threads to be executed in the near future. This characteristic of the DDM model allows for cache aware thread scheduling and cache prefetching. The NoC prototype is a crossbar switch with output buffering that can support a cache-aware 4-node chip multiprocessor. The prototype is built on the Xilinx ML506 board equipped with a Xilinx Virtex-5 FPGA.

  10. Atom chip gravimeter

    Science.gov (United States)

    Schubert, Christian; Abend, Sven; Gebbe, Martina; Gersemann, Matthias; Ahlers, Holger; Müntinga, Hauke; Matthias, Jonas; Sahelgozin, Maral; Herr, Waldemar; Lämmerzahl, Claus; Ertmer, Wolfgang; Rasel, Ernst

    2016-04-01

    Atom interferometry has developed into a tool for measuring rotations [1], accelerations [2], and testing fundamental physics [3]. Gravimeters based on laser cooled atoms demonstrated residual uncertainties of few microgal [2,4] and were simplified for field applications [5]. Atomic gravimeters rely on the interference of matter waves which are coherently manipulated by laser light fields. The latter can be interpreted as rulers to which the position of the atoms is compared. At three points in time separated by a free evolution, the light fields are pulsed onto the atoms. First, a coherent superposition of two momentum states is produced, then the momentum is inverted, and finally the two trajectories are recombined. Depending on the acceleration the atoms experienced, the number of atoms detected in the output ports will change. Consequently, the acceleration can be determined from the output signal. The laser cooled atoms with microkelvin temperatures used in state-of-the-art gravimeters impose limits on the accuracy [4]. Therefore, ultra-cold atoms generated by Bose-Einstein condensation and delta-kick collimation [6,7] are expected to be the key for further improvements. These sources suffered from a low flux implying an incompatible noise floor, but a competitive performance was demonstrated recently with atom chips [8]. In the compact and robust setup constructed for operation in the drop tower [6] we demonstrated all steps necessary for an atom chip gravimeter with Bose-Einstein condensates in a ground based operation. We will discuss the principle of operation, the current performance, and the perspectives to supersede the state of the art. The authors thank the QUANTUS cooperation for contributions to the drop tower project in the earlier stages. This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under grant numbers DLR 50WM

  11. Experiment list: SRX214075 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available age=Undifferentiated || treatment=Overexpress Sox17EK-V5 tagged || cell line=KH2 || chip antibody 1=none || chip antibody manufacture...r 1=none || chip antibody 2=V5 || chip antibody manufacture

  12. Experiment list: SRX122523 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Irf2 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http://

  13. Experiment list: SRX122414 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://d

  14. Experiment list: SRX214071 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Undifferentiated || treatment=Overexpress Sox2-V5 tagged || cell line=KH2 || chip antibody 1=none || chip antibody manufacture...r 1=none || chip antibody 2=V5 || chip antibody manufacturer 2=

  15. Experiment list: SRX214086 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available entiated || cell line=KH2 || chip antibody 1=none || chip antibody manufacturer 1=none || chip antibody 2=none || chip antibody manuf...acturer 2=none http://dbarchive.biosciencedbc.jp/kyushu-

  16. Experiment list: SRX122485 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Atf3 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ...catalog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100

  17. Experiment list: SRX122521 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Irf2 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http://

  18. Experiment list: SRX122417 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=60 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://d

  19. Experiment list: SRX122520 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Irf2 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http://

  20. Experiment list: SRX122413 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Junb || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody catalo...g number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http:/

  1. Experiment list: SRX122412 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Junb || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody catalo...g number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http:/

  2. Experiment list: SRX122406 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Irf1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog... number 1=ab52520 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-640 http:/

  3. Experiment list: SRX122415 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://d

  4. Experiment list: SRX214074 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ge=Undifferentiated || treatment=Overexpress Sox17EK-V5 tagged || cell line=KH2 || chip antibody 1=none || chip antibody manufacture...r 1=none || chip antibody 2=V5 || chip antibody manufacture

  5. Experiment list: SRX214072 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available e=Undifferentiated || treatment=Overexpress Sox2KE-V5 tagged || cell line=KH2 || chip antibody 1=none || chip antibody manufacture...r 1=none || chip antibody 2=V5 || chip antibody manufacture

  6. Experiment list: SRX214067 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available fferentiated || cell line=F9 || chip antibody 1=Pou5f1/Oct4 || chip antibody manufacture...r 1=Santa Cruz || chip antibody 2=none || chip antibody manufacturer 2=none http://dbarchive.bioscien

  7. Experiment list: SRX122416 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=60 min || chip antibody manufacturer 1=Abcam || chip antibody catalog ...number 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://d

  8. Experiment list: SRX122565 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat2 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog... number 1=ab53149 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-839 http:/

  9. Chip compacting press; Jido kirikuzu asshukuki

    Energy Technology Data Exchange (ETDEWEB)

    Oura, K. [Yuken Kogyo Co. Ltd., Kanagawa (Japan)

    1998-08-15

    The chips exhausted from various machine tools are massy, occupy much space and make working environment worse by staying added cutting oil to lower part. The chips are exhausted as a result of machining and have not constant quality. Even if used material is same the chips have various shapes and properties by kinds and machining methods of used machine tools, and are troublesome materials from a standpoint of their treatment. Pressing and solidification of the chips have frequently been tried. A chip compacting press introduced in this paper, a relatively cheap chip compacting press aimed for relatively small scale chip treatment, and has such characteristics and effects as follows. Chips are pressed and solidified by each raw material, so fractional management can be easily conducted. As casting metal chips and curled chips of iron and aluminum can be pressed to about 1/3 to 1/5 and about 1/40, respectively, space saving can be conducted. Chip compacting pressing upgrades its transporting efficiency to make possible to reduce its transporting cost. As chip solidification controls its oxidation and most cutting oil are removed, chips are easy to recycle. 2 figs., 1 tab.

  10. STUDY OF CHIP IGNITION AND CHIP MORPHOLOGY AFTER MILLING OF MAGNESIUM ALLOYS

    Directory of Open Access Journals (Sweden)

    Ireneusz Zagórski

    2016-12-01

    Full Text Available The paper analyses the impact of specified technological parameters of milling (vc, fz, ap on time to ignition. Stages leading to chip ignition were analysed. Metallographic images of magnesium chip were presented. No significant difference was observed in time to ignition in different chip fractions. Moreover, the surface of chips was free of products of ignition and signs of strong oxidation.

  11. CMOS foveal image sensor chip

    Science.gov (United States)

    Bandera, Cesar (Inventor); Scott, Peter (Inventor); Sridhar, Ramalingam (Inventor); Xia, Shu (Inventor)

    2002-01-01

    A foveal image sensor integrated circuit comprising a plurality of CMOS active pixel sensors arranged both within and about a central fovea region of the chip. The pixels in the central fovea region have a smaller size than the pixels arranged in peripheral rings about the central region. A new photocharge normalization scheme and associated circuitry normalizes the output signals from the different size pixels in the array. The pixels are assembled into a multi-resolution rectilinear foveal image sensor chip using a novel access scheme to reduce the number of analog RAM cells needed. Localized spatial resolution declines monotonically with offset from the imager's optical axis, analogous to biological foveal vision.

  12. Quantum interference in heterogeneous superconducting-photonic circuits on a silicon chip.

    Science.gov (United States)

    Schuck, C; Guo, X; Fan, L; Ma, X; Poot, M; Tang, H X

    2016-01-21

    Quantum information processing holds great promise for communicating and computing data efficiently. However, scaling current photonic implementation approaches to larger system size remains an outstanding challenge for realizing disruptive quantum technology. Two main ingredients of quantum information processors are quantum interference and single-photon detectors. Here we develop a hybrid superconducting-photonic circuit system to show how these elements can be combined in a scalable fashion on a silicon chip. We demonstrate the suitability of this approach for integrated quantum optics by interfering and detecting photon pairs directly on the chip with waveguide-coupled single-photon detectors. Using a directional coupler implemented with silicon nitride nanophotonic waveguides, we observe 97% interference visibility when measuring photon statistics with two monolithically integrated superconducting single-photon detectors. The photonic circuit and detector fabrication processes are compatible with standard semiconductor thin-film technology, making it possible to implement more complex and larger scale quantum photonic circuits on silicon chips.

  13. Space division multiplexing chip-to-chip quantum key distribution

    DEFF Research Database (Denmark)

    Bacco, Davide; Ding, Yunhong; Dalgaard, Kjeld

    2017-01-01

    nodes of the quantum keys to their respective destinations. In this paper we present an experimental demonstration of a photonic integrated silicon chip quantum key distribution protocols based on space division multiplexing (SDM), through multicore fiber technology. Parallel and independent quantum...

  14. A vacuum manifold for rapid world-to-chip connectivity of complex PDMS microdevices.

    Science.gov (United States)

    Cooksey, Gregory A; Plant, Anne L; Atencia, Javier

    2009-05-07

    The lack of simple interfaces for microfluidic devices with a large number of inlets significantly limits production and utilization of these devices. In this article, we describe the fabrication of a reusable manifold that provides rapid world-to-chip connectivity. A vacuum network milled into a rigid manifold holds microdevices and prevents leakage of fluids injected into the device from ports in the manifold. A number of different manifold designs were explored, and all performed similarly, yielding an average of 100 kPa (15 psi) fluid holding pressure. The wide applicability of this manifold concept is demonstrated by interfacing with a 51-inlet microfluidic chip containing 144 chambers and hundreds of embedded pneumatic valves. Due to the speed of connectivity, the manifolds are ideal for rapid prototyping and are well suited to serve as "universal" interfaces.

  15. Influence of passivation process on chip performance

    NARCIS (Netherlands)

    Lu, J.; Kovalgin, Alexeij Y.; Schmitz, Jurriaan

    2009-01-01

    In this work, we have studied the performance of CMOS chips before and after a low temperature post-processing step. In order to prevent damage to the IC chips by the post-processing steps, a first passivation layers is needed on top of the IC chips. Two different passivation layer deposition

  16. Effects of Gas-Wall Partitioning in Teflon Tubing, Instrumentation and Other Materials on Time-Resolved Measurements of Gas-Phase Organic Compounds

    Science.gov (United States)

    Pagonis, D.; Deming, B.; Krechmer, J. E.; De Gouw, J. A.; Jimenez, J. L.; Ziemann, P. J.

    2017-12-01

    Recently it has been shown that gas-phase organic compounds partition to and from the walls of Teflon environmental chambers. This process is fast, reversible, and can be modeled as absorptive partitioning. Here these studies were extended to investigate gas-wall partitioning inside Teflon tubing by introducing step function changes in the concentration of compounds being sampled and measuring the delay in the response of a proton transfer reaction-mass spectrometer (PTR-MS). We find that these delays are significant for compounds with a saturation vapor concentration (c*) below 106 μg m-3, and that the Teflon tubing and the PTR-MS both contribute to the delays. Tubing delays range from minutes to hours under common sampling conditions and can be accurately predicted by a simple chromatography model across a range of tubing lengths and diameters, flow rates, compound functional groups, and c*. This method also allows one to determine the volatility-dependent response function of an instrument, which can be convolved with the output of the tubing model to correct for delays in instrument response time for these "sticky" compounds. This correction is expected to be of particular interest to researchers utilizing and developing chemical ionization mass spectrometry (CIMS) techniques, since many of the multifunctional organic compounds detected by CIMS show significant tubing and instrument delays. These results also enable better design of sampling systems, in particular when fast instrument response is needed, such as for rapid transients, aircraft, or eddy covariance measurements. Additional results presented here extend this method to quantify the relative sorptive capacities for other commonly used tubing materials, including PFA, FEP, PTFE, PEEK, glass, copper, stainless steel, and passivated steel.

  17. The effect of ultraviolet and visible radiation on the readout obtained from γ-irradiated and unirradiated CaSO4:Dy in teflon discs

    International Nuclear Information System (INIS)

    Bartnik, D.L.; Calvert, R.L.; Young, J.G.

    1982-07-01

    The effect of ultraviolet and visible radiation on the readout obtained from the main dosimetry peak of CaSO 4 :Dy in teflon discs is explained by the net result of three separate factors, namely (i) an inherent response, (ii) a phototransfer and (iii) an optical bleaching. Their dependence on wavelength, irradiance and radiant exposure has been studied using a fluorescent light enclosed in a perspex diffuser and a 200W mercury-xenon lamp in conjunction with narrow bandpass filters to isolate specific wavelengths

  18. Testing of CaSO-4:Dy in teflon discs as a thermoluminescent dosimetry material for personal monitoring of uranium mine and mill workers

    International Nuclear Information System (INIS)

    Boas, J.F.; Murray, A.; Young, J.G.; Johnston, P.N.

    1981-05-01

    Some studies of the spectroscopic and thermoluminescent properties of CaSO 4 :Dy are discussed. Measurements were also made in the field. Exposures measured using TLD, film and spot monitoring were in agreement, and these observations, together with measurements made at various heights above the ore stockpile have shown that CaSO 4 :Dy in teflon discs, shielded by 2mm of copper, give a reliable measure of the exposure at the appropriate position on the wearer's body. This exposure may then be converted into the dose equivalent for the whole body

  19. Does imminent threat capture and hold attention?

    Science.gov (United States)

    Koster, Ernst H W; Crombez, Geert; Van Damme, Stefaan; Verschuere, Bruno; De Houwer, Jan

    2004-09-01

    According to models of attention and emotion, threat captures and holds attention. In behavioral tasks, robust evidence has been found for attentional holding but not for attentional capture by threat. An important explanation for the absence of attentional capture effects is that the visual stimuli used posed no genuine threat. The present study investigated whether visual cues that signal an aversive white noise can elicit attentional capture and holding effects. Cues presented in an attentional task were simultaneously provided with a threat value through an aversive conditioning procedure. Response latencies showed that threatening cues captured and held attention. These results support recent views on attention to threat, proposing that imminent threat captures attention in everyone. (c) 2004 APA, all rights reserved

  20. Ultracold atoms on atom chips

    DEFF Research Database (Denmark)

    Krüger, Peter; Hofferberth, S.; Haller, E.

    2005-01-01

    Miniaturized potentials near the surface of atom chips can be used as flexible and versatile tools for the manipulation of ultracold atoms on a microscale. The full scope of possibilities is only accessible if atom-surface distances can be reduced to microns. We discuss experiments in this regime...

  1. FERMI multi-chip module

    CERN Multimedia

    This FERMI multi-chip module contains five million transistors. 25 000 of these modules will handle the flood of information through parts of the ATLAS and CMS detectors at the LHC. To select interesting events for recording, crucial decisions are taken before the data leaves the detector. FERMI modules are being developed at CERN in partnership with European industry.

  2. Tunable on chip optofluidic laser

    DEFF Research Database (Denmark)

    Bakal, Avraham; Vannahme, Christoph; Kristensen, Anders

    2015-01-01

    A chip scale tunable laser in the visible spectral band is realized by generating a periodic droplet array inside a microfluidic channel. Combined with a gain medium within the droplets, the periodic structure provides the optical feedback of the laser. By controlling the pressure applied to two...

  3. Chip & Cut Tests an Elastomeren

    OpenAIRE

    Euchler, Eric; Heinrich, Gert; Michael, Hannes; Gehde, Michael; Stocek, Radek; Kratina, Ondrej; Kipscholl, Reinhold

    2016-01-01

    Dieser Vortrag stellt einen neuartigen Prüfstand vor, mit welchem das Chip & Cut Verhalten von Elastomeren charakterisiert werden kann. Sowohl theoretischer Hintergrund als auch praktische Erkenntnisse werden diskutiert. Die Vorstellung der Praxisrelevanz dieser Untersuchungen steht im Fokus des Vortrags.

  4. 12 CFR Appendix E to Part 360 - Hold File Structure

    Science.gov (United States)

    2010-01-01

    ... ReasonReason for the hold. Possible values are: Character (2). • LN = Loan Collateral Hold • LG = Court... structure of the data file to provide information to the FDIC for each legal or collateral hold placed on a...

  5. Optical lattice on an atom chip

    DEFF Research Database (Denmark)

    Gallego, D.; Hofferberth, S.; Schumm, Thorsten

    2009-01-01

    Optical dipole traps and atom chips are two very powerful tools for the quantum manipulation of neutral atoms. We demonstrate that both methods can be combined by creating an optical lattice potential on an atom chip. A red-detuned laser beam is retroreflected using the atom chip surface as a high......-quality mirror, generating a vertical array of purely optical oblate traps. We transfer thermal atoms from the chip into the lattice and observe cooling into the two-dimensional regime. Using a chip-generated Bose-Einstein condensate, we demonstrate coherent Bloch oscillations in the lattice....

  6. Cash Holdings and Mutual Fund Performance

    OpenAIRE

    Mikhail Simutin

    2014-01-01

    Cash holdings of equity mutual funds impose a drag on fund performance but also allow managers to make quick investments in attractive stocks and satisfy outflows without costly fire sales. This article shows that actively managed equity funds with high abnormal cash—that is, with cash holdings in excess of the level predicted by fund attributes—outperform their low abnormal cash peers by over 2% per year. Managers carrying high abnormal cash compensate for the low return on cash by making su...

  7. Metal filters for the compensation of photon energy dependence of the response of CaSO4: Dy - Teflon TLD Discs

    International Nuclear Information System (INIS)

    Pradhan, A.S.; Bhatt, R.C.

    1979-01-01

    Metal filters of aluminium, stainless steel, copper, cadmium, tin and lead were studied for compensation of the photon energy dependence of the response of CaSO 4 : Dy Teflon TLD Discs. It was found that metals such as cadmium and tin (which are normally used for this purpose) with their K absorption edges around 30 keV, are poor compensators of photon energy dependence. However, if either cadmium or tin is used in combination with either copper or stainless steel (with the lower Z filter nearer to the TLD dosimeter disc) a better compensation of photon energy dependence is achieved. Consequently, for personnel monitoring of X and gamma radiations, a TLD badge with CaSO 4 : Dy Teflon TLD discs and two sets of combination filters has been recommended. In the range of 27 keV -1.25 MeV this badge offers a photon energy response which varies within +-15%. This is a considerable improvement on the corresponding limits of +-65% on using a single filter. (orig.)

  8. A study of the effects of aligned vertically growth time on ZnO nanorods deposited for the first time on Teflon substrate

    Science.gov (United States)

    Farhat, O. F.; Halim, M. M.; Ahmed, Naser M.; Oglat, Ammar A.; Abuelsamen, A. A.; Bououdina, M.; Qaeed, M. A.

    2017-12-01

    In this study, ZnO nanorods (NRs) were well deposited on Teflon substrates (PTFE) via a chemical bath deposition (CBD) method at low temperature. The consequences of growth time (1 h-4 h) on the structural and optical properties of the aligned ZnO (NRs) were investigated through X-ray diffraction, field-emission scanning electron microscopy (FESEM), and photoluminescence (PL) analyses. The results show that the ZnO (NRs) were preferred to grew aligned along the c-axis as hexagonal wurtzite structure as proved by the sharp and strong ZnO (002) peaks of the ZnO (NRs). Irrespective of the growth continuation, FESEM photos confirmed that the ZnO nanorods arrays were fit to be aligned along the c-axis and perpendicular to (PTFE) substrates. The ZnO nanorods that exhibited the sharper stand most intense PL peaks among the sample were grown for 3hs as demonstrated by PL spectra. The device further showed a sensitivity of 4068 to low-power (1.25 mW/cm2) 375 nm light pulses without an external bias. The measurements of photoresponse demonstrated the highly reproducible characteristics of the fabricated UV detector with rapid response and baseline recovery times of 48.05 ms. Thus, this work introduced a simple, low-cost method of fabricating rapid-response, and highly photosensitive UV detectors with zero power consumption on Teflon substrates.

  9. Are Economists More Likely to Hold Stocks?

    DEFF Research Database (Denmark)

    Christiansen, Charlotte; Joensen, Eyðfrið Juanna Schrøter; Rangvid, Jesper

    A unique data set enables us to test the hypothesis that due to informational advantages economists are more likely to hold stocks than otherwise identical investors. Weconfirm that economists have a significantly higher probability of participating in the stockmarket than investors with any other...

  10. 12 CFR 1732.7 - Record hold.

    Science.gov (United States)

    2010-01-01

    ... Banking OFFICE OF FEDERAL HOUSING ENTERPRISE OVERSIGHT, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT SAFETY AND SOUNDNESS RECORD RETENTION Record Retention Program § 1732.7 Record hold. (a) Definition. For... Enterprise or OFHEO that the Enterprise is to retain records relating to a particular issue in connection...

  11. Venezuela and Chavez: What the Future Holds...

    Science.gov (United States)

    2010-04-01

    government made public 26 presidential decrees that had been enacted. These acts: ...covered such areas as tourism , railways, social security, and...great prosperity or a harbinger of doom to the region, and for this reason the United States must prepare for the many paths that the future holds

  12. Empowerment Amongst Teachers Holding Leadership Positions

    Science.gov (United States)

    Avidov-Ungar, Orit; Friedman, Izhak; Olshtain, Elite

    2014-01-01

    This study used semi-structured in-depth interviews to explore empowerment patterns among teachers who hold leadership positions in school. Our qualitative analysis presents a hierarchical ladder with three types of empowerment amongst these teachers, ranging from limited empowerment through rewarding empowerment to change-enhancing empowerment.…

  13. Biosketch Ashok Venkitaraman holds the Ursula Zoellner ...

    Indian Academy of Sciences (India)

    ashok

    Ashok Venkitaraman holds the Ursula Zoellner Professorship of Cancer Research at the University of Cambridge, and is the Director of the Medical Research Council. (MRC) Cancer Cell Unit there. He learnt and practiced medicine at the Christian. Medical College, Vellore, before completing his Ph.D. at University College ...

  14. Fabrication of dielectrophoretic microfluidic chips using a facile screen-printing technique for microparticle trapping

    International Nuclear Information System (INIS)

    Wee, Wei Hong; Kadri, Nahrizul Adib; Pingguan-Murphy, Belinda; Li, Zedong; Hu, Jie; Xu, Feng; Li, Fei

    2015-01-01

    Trapping of microparticles finds wide applications in numerous fields. Microfluidic chips based on a dielectrophoresis (DEP) technique hold several advantages for trapping microparticles, such as fast result processing, a small amount of sample required, high spatial resolution, and high accuracy of target selection. There is an unmet need to develop DEP microfluidic chips on different substrates for different applications in a low cost, facile, and rapid way. This study develops a new facile method based on a screen-printing technique for fabrication of electrodes of DEP chips on three types of substrates (i.e. polymethyl-methacrylate (PMMA), poly(ethylene terephthalate) and A4 paper). The fabricated PMMA-based DEP microfluidic chip was selected as an example and successfully used to trap and align polystyrene microparticles in a suspension and cardiac fibroblasts in a cell culture solution. The developed electrode fabrication method is compatible with different kinds of DEP substrates, which could expand the future application field of DEP microfluidic chips, including new forms of point-of care diagnostics and trapping circulating tumor cells. (paper)

  15. 12 CFR 1252.1 - Enterprise portfolio holding criteria.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 7 2010-01-01 2010-01-01 false Enterprise portfolio holding criteria. 1252.1 Section 1252.1 Banks and Banking FEDERAL HOUSING FINANCE AGENCY ENTERPRISES PORTFOLIO HOLDINGS § 1252.1 Enterprise portfolio holding criteria. The Enterprises are required to comply with the portfolio holdings...

  16. 12 CFR 583.20 - Savings and loan holding company.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Savings and loan holding company. 583.20... REGULATIONS AFFECTING SAVINGS AND LOAN HOLDING COMPANIES § 583.20 Savings and loan holding company. The term savings and loan holding company means any company that directly or indirectly controls a savings...

  17. 76 FR 20459 - Savings and Loan Holding Company Application

    Science.gov (United States)

    2011-04-12

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision Savings and Loan Holding Company... concerning the following information collection. Title of Proposal: Savings and Loan Holding Company... officer of a savings and loan holding company, or any individual who owns, controls, or holds with power...

  18. Regulation of Cross-holdings between European Companies

    DEFF Research Database (Denmark)

    Sørensen, Karsten Engsig

    2003-01-01

    Cross-holdings can be a barrier to takeovers, and they may have other disadvantages. This article analyses how cross-holdings may be regulated to avoid these negative effects.......Cross-holdings can be a barrier to takeovers, and they may have other disadvantages. This article analyses how cross-holdings may be regulated to avoid these negative effects....

  19. 12 CFR 225.124 - Foreign bank holding companies.

    Science.gov (United States)

    2010-01-01

    ... SYSTEM BANK HOLDING COMPANIES AND CHANGE IN BANK CONTROL (REGULATION Y) Regulations Financial Holding Companies Interpretations § 225.124 Foreign bank holding companies. (a) Effective December 1, 1971, the... 12 Banks and Banking 3 2010-01-01 2010-01-01 false Foreign bank holding companies. 225.124 Section...

  20. Experiment list: SRX122465 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 6 || chip antibody=Relb || treatment=LPS || time=120 min || chip antibody manufacturer 1=Bethyl || chip anti...body catalog number 1=A302-183A || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2

  1. Experiment list: SRX122555 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available chip antibody=Stat1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip anti...body catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-7

  2. Saskatchewan Energy Holdings Ltd. consolidated financial statements

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    The consolidated financial statements of Saskatchewan Energy Holdings Ltd. (formerly Saskatchewan Energy Corporation) as of December 31, 1990, and the consolidated statements of earnings and retained earnings and changes in cash position for the year are presented. Data include an inventory of supplies, natural gas in storage, property, plant and equipment. Financial statements are also presented for the year ending December 31, 1989, with comparative figures for the seven months ending December 31, 1988.

  3. Saskatchewan Energy Holdings Ltd. consolidated financial statements

    International Nuclear Information System (INIS)

    1991-01-01

    The consolidated financial statements of Saskatchewan Energy Holdings Ltd. (formerly Saskatchewan Energy Corporation) as of December 31, 1990, and the consolidated statements of earnings and retained earnings and changes in cash position for the year are presented. Data include an inventory of supplies, natural gas in storage, property, plant and equipment. Financial statements are also presented for the year ending December 31, 1989, with comparative figures for the seven months ending December 31, 1988

  4. 12 CFR 584.2-2 - Permissible bank holding company activities of savings and loan holding companies.

    Science.gov (United States)

    2010-01-01

    ... savings and loan holding companies. 584.2-2 Section 584.2-2 Banks and Banking OFFICE OF THRIFT SUPERVISION, DEPARTMENT OF THE TREASURY SAVINGS AND LOAN HOLDING COMPANIES § 584.2-2 Permissible bank holding company activities of savings and loan holding companies. (a) General. For purposes of § 584.2(b)(6)(i) of this part...

  5. 12 CFR 225.82 - How does a bank holding company elect to become a financial holding company?

    Science.gov (United States)

    2010-01-01

    ... holding company to become a financial holding company shall not be effective if, during the period...) Effective date of election—(1) In general. An election filed by a bank holding company under paragraph (a... financial holding company is effective prior to the 31st day after the date that a complete declaration was...

  6. Flip chip assembly of thinned chips for hybrid pixel detector applications

    International Nuclear Information System (INIS)

    Fritzsch, T; Zoschke, K; Rothermund, M; Oppermann, H; Woehrmann, M; Ehrmann, O; Lang, K D; Huegging, F

    2014-01-01

    There is a steady trend to ultra-thin microelectronic devices. Especially for future particle detector systems a reduced readout chip thickness is required to limit the loss of tracking precision due to scattering. The reduction of silicon thickness is performed at wafer level in a two-step thinning process. To minimize the risk of wafer breakage the thinned wafer needs to be handled by a carrier during the whole process chain of wafer bumping. Another key process is the flip chip assembly of thinned readout chips onto thin sensor tiles. Besides the prevention of silicon breakage the minimization of chip warpage is one additional task for a high yield and reliable flip chip process. A new technology using glass carrier wafer will be described in detail. The main advantage of this technology is the combination of a carrier support during wafer processing and the chip support during flip chip assembly. For that a glass wafer is glue-bonded onto the backside of the thinned readout chip wafer. After the bump deposition process the glass-readout chip stack is diced in one step. Finally the glass carrier chip is released by laser illumination after flip chip assembly of the readout chip onto sensor tile. The results of the flip chip assembly process development for the ATLAS IBL upgrade are described more in detail. The new ATLAS FEI4B chip with a size of 20 × 19 mm 2 is flip chip bonded with a thickness of only 150 μm, but the capability of this technology has been demonstrated on hybrid modules with a reduced readout chip thickness of down to 50 μm which is a major step for ultra-thin electronic systems

  7. Photonic network-on-chip design

    CERN Document Server

    Bergman, Keren; Biberman, Aleksandr; Chan, Johnnie; Hendry, Gilbert

    2013-01-01

    This book provides a comprehensive synthesis of the theory and practice of photonic devices for networks-on-chip. It outlines the issues in designing photonic network-on-chip architectures for future many-core high performance chip multiprocessors. The discussion is built from the bottom up: starting with the design and implementation of key photonic devices and building blocks, reviewing networking and network-on-chip theory and existing research, and finishing with describing various architectures, their characteristics, and the impact they will have on a computing system. After acquainting

  8. Wax-bonding 3D microfluidic chips

    KAUST Repository

    Gong, Xiuqing; Yi, Xin; Xiao, Kang; Li, Shunbo; Kodzius, Rimantas; Qin, Jianhua; Wen, Weijia

    2013-01-01

    We report a simple, low-cost and detachable microfluidic chip incorporating easily accessible paper, glass slides or other polymer films as the chip materials along with adhesive wax as the recycling bonding material. We use a laser to cut through the paper or film to form patterns and then sandwich the paper and film between glass sheets or polymer membranes . The hot-melt adhesive wax can realize bridge bonding between various materials, for example, paper, polymethylmethacrylate (PMMA) film, glass sheets, or metal plate. The bonding process is reversible and the wax is reusable through a melting and cooling process. With this process, a three-dimensional (3D) microfluidic chip is achievable by vacuating and venting the chip in a hot-water bath. To study the biocompatibility and applicability of the wax-based microfluidic chip, we tested the PCR compatibility with the chip materials first. Then we applied the wax-paper based microfluidic chip to HeLa cell electroporation (EP ). Subsequently, a prototype of a 5-layer 3D chip was fabricated by multilayer wax bonding. To check the sealing ability and the durability of the chip, green fluorescence protein (GFP) recombinant Escherichia coli (E. coli) bacteria were cultured, with which the chemotaxis of E. coli was studied in order to determine the influence of antibiotic ciprofloxacin concentration on the E. coli migration.

  9. Wax-bonding 3D microfluidic chips

    KAUST Repository

    Gong, Xiuqing

    2013-10-10

    We report a simple, low-cost and detachable microfluidic chip incorporating easily accessible paper, glass slides or other polymer films as the chip materials along with adhesive wax as the recycling bonding material. We use a laser to cut through the paper or film to form patterns and then sandwich the paper and film between glass sheets or polymer membranes . The hot-melt adhesive wax can realize bridge bonding between various materials, for example, paper, polymethylmethacrylate (PMMA) film, glass sheets, or metal plate. The bonding process is reversible and the wax is reusable through a melting and cooling process. With this process, a three-dimensional (3D) microfluidic chip is achievable by vacuating and venting the chip in a hot-water bath. To study the biocompatibility and applicability of the wax-based microfluidic chip, we tested the PCR compatibility with the chip materials first. Then we applied the wax-paper based microfluidic chip to HeLa cell electroporation (EP ). Subsequently, a prototype of a 5-layer 3D chip was fabricated by multilayer wax bonding. To check the sealing ability and the durability of the chip, green fluorescence protein (GFP) recombinant Escherichia coli (E. coli) bacteria were cultured, with which the chemotaxis of E. coli was studied in order to determine the influence of antibiotic ciprofloxacin concentration on the E. coli migration.

  10. A scalable single-chip multi-processor architecture with on-chip RTOS kernel

    NARCIS (Netherlands)

    Theelen, B.D.; Verschueren, A.C.; Reyes Suarez, V.V.; Stevens, M.P.J.; Nunez, A.

    2003-01-01

    Now that system-on-chip technology is emerging, single-chip multi-processors are becoming feasible. A key problem of designing such systems is the complexity of their on-chip interconnects and memory architecture. It is furthermore unclear at what level software should be integrated. An example of a

  11. An expedient method for the preparation of 99mTc-MIBI and 99mTc-MAG3 using microwave and teflon 'bomb'

    International Nuclear Information System (INIS)

    Varelis, P.; Poot, M.T.

    1998-01-01

    Full text: The recommended method for the preparation of 99mTc-MIBI and 99mTc-MAG3 requires that they be heated in a boiling water bath for 10 minutes, after reconstitution with sodium pertechnetate. This method is both inconvenient and time consuming. A more rapid and convenient method for the preparation of these radiopharmaceuticals employs a conventional microwave oven. However, a serious limitation of this method is the hazard associated with an explosion of a vessel containing a radioactive substance. Traditionally, mixtures that can potentially explode are contained in a device called a 'bomb'. We have developed a method, utilising such a device, that allows us to rapidly and safely prepare 99mTc-MIBI and 99mTc-MAG3 using a microwave oven. This device is used in our department on a daily basis. Since using the teflon bomb, there has been one incidence of an explosion, which was successfully contained within the bomb. There was no statistically significant difference between the radiochemical purity (RCP) of the microwave prepared samples and those obtained using the recommended method. In conclusion, 99mTc-MIBI and 99mTc-MAG3 can be safely prepared and quality controlled in under ten minutes using a microwave oven and our teflon bomb. The average RCP for 99mTc-MIBI and 99mTc-MAG3 prepared using a microwave oven were 97.0+2.0% (n=19) and 99.8+0.2 (n=7) respectively

  12. An expedient method for the preparation of 99mTc-MIBI and 99mTc-MAG3 using microwave and teflon `bomb`

    Energy Technology Data Exchange (ETDEWEB)

    Varelis, P.; Poot, M.T. [St George Hospital, Sydney, NSW (Australia). Department of Nuclear Medicine

    1998-06-01

    Full text: The recommended method for the preparation of 99mTc-MIBI and 99mTc-MAG3 requires that they be heated in a boiling water bath for 10 minutes, after reconstitution with sodium pertechnetate. This method is both inconvenient and time consuming. A more rapid and convenient method for the preparation of these radiopharmaceuticals employs a conventional microwave oven. However, a serious limitation of this method is the hazard associated with an explosion of a vessel containing a radioactive substance. Traditionally, mixtures that can potentially explode are contained in a device called a `bomb`. We have developed a method, utilising such a device, that allows us to rapidly and safely prepare 99mTc-MIBI and 99mTc-MAG3 using a microwave oven. This device is used in our department on a daily basis. Since using the teflon bomb, there has been one incidence of an explosion, which was successfully contained within the bomb. There was no statistically significant difference between the radiochemical purity (RCP) of the microwave prepared samples and those obtained using the recommended method. In conclusion, 99mTc-MIBI and 99mTc-MAG3 can be safely prepared and quality controlled in under ten minutes using a microwave oven and our teflon bomb. The average RCP for 99mTc-MIBI and 99mTc-MAG3 prepared using a microwave oven were 97.0+2.0% (n=19) and 99.8+0.2 (n=7) respectively

  13. A conceptual holding model for veterinary applications

    Directory of Open Access Journals (Sweden)

    Nicola Ferrè

    2014-05-01

    Full Text Available Spatial references are required when geographical information systems (GIS are used for the collection, storage and management of data. In the veterinary domain, the spatial component of a holding (of animals is usually defined by coordinates, and no other relevant information needs to be interpreted or used for manipulation of the data in the GIS environment provided. Users trying to integrate or reuse spatial data organised in such a way, frequently face the problem of data incompatibility and inconsistency. The root of the problem lies in differences with respect to syntax as well as variations in the semantic, spatial and temporal representations of the geographic features. To overcome these problems and to facilitate the inter-operability of different GIS, spatial data must be defined according to a “schema” that includes the definition, acquisition, analysis, access, presentation and transfer of such data between different users and systems. We propose an application “schema” of holdings for GIS applications in the veterinary domain according to the European directive framework (directive 2007/2/EC - INSPIRE. The conceptual model put forward has been developed at two specific levels to produce the essential and the abstract model, respectively. The former establishes the conceptual linkage of the system design to the real world, while the latter describes how the system or software works. The result is an application “schema” that formalises and unifies the information-theoretic foundations of how to spatially represent a holding in order to ensure straightforward information-sharing within the veterinary community.

  14. Self-powered integrated systems-on-chip (energy chip)

    KAUST Repository

    Hussain, Muhammad Mustafa

    2010-04-23

    In today\\'s world, consumer driven technology wants more portable electronic gadgets to be developed, and the next big thing in line is self-powered handheld devices. Therefore to reduce the power consumption as well as to supply sufficient power to run those devices, several critical technical challenges need to be overcome: a. Nanofabrication of macro/micro systems which incorporates the direct benefit of light weight (thus portability), low power consumption, faster response, higher sensitivity and batch production (low cost). b. Integration of advanced nano-materials to meet the performance/cost benefit trend. Nano-materials may offer new functionalities that were previously underutilized in the macro/micro dimension. c. Energy efficiency to reduce power consumption and to supply enough power to meet that low power demand. We present a pragmatic perspective on a self-powered integrated System on Chip (SoC). We envision the integrated device will have two objectives: low power consumption/dissipation and on-chip power generation for implementation into handheld or remote technologies for defense, space, harsh environments and medical applications. This paper provides insight on materials choices, intelligent circuit design, and CMOS compatible integration.

  15. Self-powered integrated systems-on-chip (energy chip)

    Science.gov (United States)

    Hussain, M. M.; Fahad, H.; Rojas, J.; Hasan, M.; Talukdar, A.; Oommen, J.; Mink, J.

    2010-04-01

    In today's world, consumer driven technology wants more portable electronic gadgets to be developed, and the next big thing in line is self-powered handheld devices. Therefore to reduce the power consumption as well as to supply sufficient power to run those devices, several critical technical challenges need to be overcome: a. Nanofabrication of macro/micro systems which incorporates the direct benefit of light weight (thus portability), low power consumption, faster response, higher sensitivity and batch production (low cost). b. Integration of advanced nano-materials to meet the performance/cost benefit trend. Nano-materials may offer new functionalities that were previously underutilized in the macro/micro dimension. c. Energy efficiency to reduce power consumption and to supply enough power to meet that low power demand. We present a pragmatic perspective on a self-powered integrated System on Chip (SoC). We envision the integrated device will have two objectives: low power consumption/dissipation and on-chip power generation for implementation into handheld or remote technologies for defense, space, harsh environments and medical applications. This paper provides insight on materials choices, intelligent circuit design, and CMOS compatible integration.

  16. A mathematical model of aerosol holding chambers

    DEFF Research Database (Denmark)

    Zak, M; Madsen, J; Berg, E

    1999-01-01

    A mathematical model of aerosol delivery from holding chambers (spacers) was developed incorporating tidal volume (VT), chamber volume (Vch), apparatus dead space (VD), effect of valve insufficiency and other leaks, loss of aerosol by immediate impact on the chamber wall, and fallout of aerosol...... in the chamber with time. Four different spacers were connected via filters to a mechanical lung model, and aerosol delivery during "breathing" was determined from drug recovery from the filters. The formula correctly predicted the delivery of budesonide aerosol from the AeroChamber (Trudell Medical, London...

  17. The Economics of an Admissions Holding Unit.

    Science.gov (United States)

    Schreyer, Kraftin E; Martin, Richard

    2017-06-01

    With increasing attention to the actual cost of delivering care, return-on-investment calculations take on new significance. Boarded patients in the emergency department (ED) are harmful to clinical care and have significant financial opportunity costs. We hypothesize that investment in an admissions holding unit for admitted ED patients not only captures opportunity cost but also significantly lowers direct cost of care. This was a three-phase study at a busy urban teaching center with significant walkout rate. We first determined the true cost of maintaining a staffed ED bed for one patient-hour and compared it to alternative settings. The opportunity cost for patients leaving without being seen was then conservatively estimated. Lastly, a convenience sample of admitted patients boarding in the ED was observed continuously from one hour after decision-to-admit until physical departure from the ED to capture a record of every interaction with a nurse or physician. Personnel costs per patient bed-hour were $58.20 for the ED, $24.80 for an inpatient floor, $19.20 for the inpatient observation unit, and $10.40 for an admissions holding area. An eight-bed holding unit operating at practical capacity would free 57.4 hours of bed space in the ED and allow treatment of 20 additional patients. This could yield increased revenues of $27,796 per day and capture opportunity cost of $6.09 million over 219 days, in return for extra staffing costs of $218,650. Analysis of resources used for boarded patients was determined by continuous observation of a convenience sample of ED-boarded patients, which found near-zero interactions with both nursing and physicians during the boarding interval. Resource expense per ED bed-hour is more than twice that in non-critical care inpatient units. Despite the high cost of available resources, boarded non-critical patients receive virtually no nursing or physician attention. An admissions holding unit is remarkably effective in avoiding the

  18. Hold-down device for nuclear reactor

    International Nuclear Information System (INIS)

    Leclercq, J.; Bonnamour, M.

    1984-01-01

    The present device can be used in nuclear reactors and more particularly in pressurized water reactors consisting of coupled fuel assemblies, certain of which are equipped with non-displaceable elements carried by an unsertable member. The device comprises the unsertable member provided with at least two sets of springs which transmit the load of an upper structure common to the fuel assemblies ajacent that which supports the unsertable member. The device is used to hold-down fuel assemblies which are subjected to the forces of circulating coolant [fr

  19. The Economics of an Admissions Holding Unit

    Directory of Open Access Journals (Sweden)

    Kraftin E. Schreyer

    2017-05-01

    Full Text Available Introduction: With increasing attention to the actual cost of delivering care, return-on-investment calculations take on new significance. Boarded patients in the emergency department (ED are harmful to clinical care and have significant financial opportunity costs. We hypothesize that investment in an admissions holding unit for admitted ED patients not only captures opportunity cost but also significantly lowers direct cost of care. Methods: This was a three-phase study at a busy urban teaching center with significant walkout rate. We first determined the true cost of maintaining a staffed ED bed for one patient-hour and compared it to alternative settings. The opportunity cost for patients leaving without being seen was then conservatively estimated. Lastly, a convenience sample of admitted patients boarding in the ED was observed continuously from one hour after decision-to-admit until physical departure from the ED to capture a record of every interaction with a nurse or physician. Results: Personnel costs per patient bed-hour were $58.20 for the ED, $24.80 for an inpatient floor, $19.20 for the inpatient observation unit, and $10.40 for an admissions holding area. An eight-bed holding unit operating at practical capacity would free 57.4 hours of bed space in the ED and allow treatment of 20 additional patients. This could yield increased revenues of $27,796 per day and capture opportunity cost of $6.09 million over 219 days, in return for extra staffing costs of $218,650. Analysis of resources used for boarded patients was determined by continuous observation of a convenience sample of ED-boarded patients, which found near-zero interactions with both nursing and physicians during the boarding interval. Conclusion: Resource expense per ED bed-hour is more than twice that in non-critical care inpatient units. Despite the high cost of available resources, boarded non-critical patients receive virtually no nursing or physician attention. An

  20. MIM Holdings Limited 1984 annual report

    Energy Technology Data Exchange (ETDEWEB)

    1984-01-01

    M.I.M. Holdings Limited is a major mining and mineral processing company formed in 1970. The group traces its origins to 1924 following the discovery of silver lead zinc started in 1931 and parallel production of silver lead zinc ore at Mount Isa the previous year. Today the MIM group is a diversified mineral, coal and metal producing and marketing organisation. Details of the company's principal activities over the last year, and accounts and management information for the last year are presented.

  1. The use of forest chips in Finland

    International Nuclear Information System (INIS)

    Hakkila, P.

    2001-01-01

    International commitments require the industrial world to restrict their greenhouse gas emissions. In Finland, where the annual timber cut per capita is more than ten times the average cut in the other EU countries, the primary means to reduce CO 2 emissions is to replace fossil fuels with forest biomass. The annual consumption of wood-based energy corresponds to 6 million tonnes of oil equivalent (toe) or almost 20% of the total primary energy consumption. The goal is to rise the annual production of wood-based energy to 7.8 million toe by 2010. Substantial part of the targeted increase could be obtained by forest chips produced of unmerchantable small-diameter trees and logging residues. The goal for 2010 is to use 5 million solid m 3 of forest chips, which equals to 0.9 million toe. The use of forest chips is increasing. About 474 000 solid m 3 of forest chips were used as fuel in 1999. At the moment, the growth is rapid especially in cogeneration plants producing both heat and electricity. The growth is based primarily on chips obtained from logging residues. The price of forest chips decreased considerably during the 1990s but the price range remained wide. Chips made of logging residues are cheaper than those made of small trees. The average price of forest chips at the plant, VAT excluded, is about 53 FIM per MWh. In Sweden, the average price is more than 40% higher

  2. Least cost supply strategies for wood chips

    DEFF Research Database (Denmark)

    Möller, Bernd

    The abstract presents a study based on a geographical information system, which produce  cost-supply curves by location for forest woods chips in Denmark.......The abstract presents a study based on a geographical information system, which produce  cost-supply curves by location for forest woods chips in Denmark....

  3. Teaching Quality Control with Chocolate Chip Cookies

    Science.gov (United States)

    Baker, Ardith

    2014-01-01

    Chocolate chip cookies are used to illustrate the importance and effectiveness of control charts in Statistical Process Control. By counting the number of chocolate chips, creating the spreadsheet, calculating the control limits and graphing the control charts, the student becomes actively engaged in the learning process. In addition, examining…

  4. A Chip for an Implantable Neural Stimulator

    DEFF Research Database (Denmark)

    Gudnason, Gunnar; Bruun, Erik; Haugland, Morten

    2000-01-01

    This paper describes a chip for a multichannel neural stimulator for functional electrical stimulation (FES). The purpose of FES is to restore muscular control in disabled patients. The chip performs all the signal processing required in an implanted neural stimulator. The power and digital data...

  5. Performance evaluation of chip seals in Idaho.

    Science.gov (United States)

    2010-08-01

    The intent of this research project is to identify a wide variety of parameters that influence the performance of pavements treated via chip seals within the State of Idaho. Chip sealing is currently one of the most popular methods of maintenance for...

  6. Simple photolithographic rapid prototyping of microfluidic chips

    DEFF Research Database (Denmark)

    Kunstmann-Olsen, Casper; Hoyland, James; Rubahn, Horst-Günter

    2012-01-01

    Vi præsenterer en simpel metode til at producere støbeforme til støbning af PDMS mikrofluide chips vha. fotolitografi, med 35mm fotonegativer som masker. Vi demonstrer metodens muligheder og begrænsninger. Vi har optimeret processen til at fremstille planare lab-on-a-chip strukturer med meget høj...

  7. Microneedle Array Interface to CE on Chip

    NARCIS (Netherlands)

    Lüttge, Regina; Gardeniers, Johannes G.E.; Vrouwe, E.X.; van den Berg, Albert; Northrup, M.A.; Jensen, K.F; Harrison, D.J.

    2003-01-01

    This paper presents a microneedle array sampler interfaced to a capillary electrophoresis (CE) glass chip with integrated conductivity detection electrodes. A solution of alkali ions was electrokinetically loaded through the microneedles onto the chip and separation was demonstrated compared to a

  8. Multimedia-Based Chip Design Education.

    Science.gov (United States)

    Catalkaya, Tamer; Golze, Ulrich

    This paper focuses on multimedia computer-based training programs on chip design. Their development must be fast and economical, in order to be affordable by technical university institutions. The self-produced teaching program Illusion, which demonstrates a monitor controller as an example of a small but complete chip design, was implemented to…

  9. METAL CHIP HEATING PROCESS INVESTIGATION (Part I

    Directory of Open Access Journals (Sweden)

    O. M. Dyakonov

    2007-01-01

    Full Text Available The main calculation methods for heat- and mass transfer in porous heterogeneous medium have been considered. The paper gives an evaluation of the possibility to apply them for calculation of metal chip heating process. It has been shown that a description of transfer processes in a chip has its own specific character that is attributed to difference between thermal and physical properties of chip material and lubricant-coolant components on chip surfaces. It has been determined that the known expressions for effective heat transfer coefficients can be used as basic ones while approaching mutually penetrating continuums. A mathematical description of heat- and mass transfer in chip medium can be considered as a basis of mathematical modeling, numerical solution and parameter optimization of the mentioned processes.

  10. An AES chip with DPA resistance using hardware-based random order execution

    International Nuclear Information System (INIS)

    Yu Bo; Li Xiangyu; Chen Cong; Sun Yihe; Wu Liji; Zhang Xiangmin

    2012-01-01

    This paper presents an AES (advanced encryption standard) chip that combats differential power analysis (DPA) side-channel attack through hardware-based random order execution. Both decryption and encryption procedures of an AES are implemented on the chip. A fine-grained dataflow architecture is proposed, which dynamically exploits intrinsic byte-level independence in the algorithm. A novel circuit called an HMF (Hold-Match-Fetch) unit is proposed for random control, which randomly sets execution orders for concurrent operations. The AES chip was manufactured in SMIC 0.18 μm technology. The average energy for encrypting one group of plain texts (128 bits secrete keys) is 19 nJ. The core area is 0.43 mm 2 . A sophisticated experimental setup was built to test the DPA resistance. Measurement-based experimental results show that one byte of a secret key cannot be disclosed from our chip under random mode after 64000 power traces were used in the DPA attack. Compared with the corresponding fixed order execution, the hardware based random order execution is improved by at least 21 times the DPA resistance. (semiconductor integrated circuits)

  11. An AES chip with DPA resistance using hardware-based random order execution

    Science.gov (United States)

    Bo, Yu; Xiangyu, Li; Cong, Chen; Yihe, Sun; Liji, Wu; Xiangmin, Zhang

    2012-06-01

    This paper presents an AES (advanced encryption standard) chip that combats differential power analysis (DPA) side-channel attack through hardware-based random order execution. Both decryption and encryption procedures of an AES are implemented on the chip. A fine-grained dataflow architecture is proposed, which dynamically exploits intrinsic byte-level independence in the algorithm. A novel circuit called an HMF (Hold-Match-Fetch) unit is proposed for random control, which randomly sets execution orders for concurrent operations. The AES chip was manufactured in SMIC 0.18 μm technology. The average energy for encrypting one group of plain texts (128 bits secrete keys) is 19 nJ. The core area is 0.43 mm2. A sophisticated experimental setup was built to test the DPA resistance. Measurement-based experimental results show that one byte of a secret key cannot be disclosed from our chip under random mode after 64000 power traces were used in the DPA attack. Compared with the corresponding fixed order execution, the hardware based random order execution is improved by at least 21 times the DPA resistance.

  12. Small forest holdings could be combined for hunting leases

    Science.gov (United States)

    John J. Stransky; Lowell K. Halls

    1969-01-01

    Most forest land acreage in the South is in small holdings. Much-needed hunting land, and income for rural landowners, could be provided by combining small forest holdings into large units and teasing the hunting rights.

  13. Corporate Governance, Cash Holdings, and Firm Value: Evidence from Japan

    OpenAIRE

    Qi Luo; Toyohiko Hachiya

    2005-01-01

    This paper presents evidence on cash holdings for Japanese firms listed on the Tokyo Stock Exchange, focusing on the impact of corporate governance factors in cash holdings and the implication of cash holdings to firm value. We find that insider ownership and bank relations of firms play a significant role in determining cash holdings. Our results indicate that foreign stockholders select profitable firms to invest, and these firms have higher levels of cash. We document evidence that cash ho...

  14. Governance mechanisms, investment opportunity set and SMEs cash holdings

    OpenAIRE

    Belghitar, Yacine; Khan, James

    2013-01-01

    This study analyses the effect of firm characteristics and governance mechanisms on cash holdings for a sample of UK SMEs. The results show that UK SMEs with greater cash flow volatility and institutional investors hold more cash; whereas levered and dividend paying SMEs with non-executive ownership hold less cash. We also find that ownership structure is significant only in explaining the cash holdings for firms with high growth investment opportunities, and leverage is only significant in e...

  15. FY1995 evolvable hardware chip; 1995 nendo shinkasuru hardware chip

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This project aims at the development of 'Evolvable Hardware' (EHW) which can adapt its hardware structure to the environment to attain better hardware performance, under the control of genetic algorithms. EHW is a key technology to explore the new application area requiring real-time performance and on-line adaptation. 1. Development of EHW-LSI for function level hardware evolution, which includes 15 DSPs in one chip. 2. Application of the EHW to the practical industrial applications such as data compression, ATM control, digital mobile communication. 3. Two patents : (1) the architecture and the processing method for programmable EHW-LSI. (2) The method of data compression for loss-less data, using EHW. 4. The first international conference for evolvable hardware was held by authors: Intl. Conf. on Evolvable Systems (ICES96). It was determined at ICES96 that ICES will be held every two years between Japan and Europe. So the new society has been established by us. (NEDO)

  16. 49 CFR 178.338-9 - Holding time.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Holding time. 178.338-9 Section 178.338-9... Specifications for Containers for Motor Vehicle Transportation § 178.338-9 Holding time. (a) “Holding time” is the time, as determined by testing, that will elapse from loading until the pressure of the contents...

  17. 76 FR 35085 - Savings and Loan Holding Company Application

    Science.gov (United States)

    2011-06-15

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision Savings and Loan Holding Company... Proposal: Savings Loan Holding Company Application. OMB Number: 1550-0015. Form Numbers: H-(e). Description... that no company, or any director or officer of a savings and loan holding company, or any individual...

  18. Creditor rights, country governance, and corporate cash holdings

    NARCIS (Netherlands)

    Seifert, Bruce; Gonenc, Halit

    2016-01-01

    This study examines the impact of creditor rights and country governance on cash holdings using a sample of firms from 47 countries. We hypothesize that cash holdings are smaller when both creditor rights and country governance are high. In these circumstances firms will not need to hold as much

  19. 12 CFR 575.14 - Subsidiary holding companies.

    Science.gov (United States)

    2010-01-01

    ... follows: Federal MHC Subsidiary Holding Company Charter Section 1. Corporate title. The full corporate... subsidiary holding company available for distribution, in cash or in kind. Each share of common stock shall... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Subsidiary holding companies. 575.14 Section...

  20. "Hold Harmless" Option for Staff Babysitting and Employee References

    Science.gov (United States)

    Bruno, Holly Elissa

    2010-01-01

    Help for educators and administrators may be on the way in the form of "hold harmless" documents that allow for flexibility in enforcing program policies. Having a "No Babysitting policy," and "Hold Harmless" documentation will not stop one's program from being sued. However, with the "No Babysitting policy" and "Hold Harmless" documentation…

  1. 78 FR 31590 - Sears Holdings Management Corporation, A Division Of Sears Holdings Corporation, Hoffman Estates...

    Science.gov (United States)

    2013-05-24

    ... (``My position at Sears had nothing to do with Analytics or space Management. I worked in Marketing... firm clarified that one petitioner supplied print marketing management services, another petitioner... DEPARTMENT OF LABOR Employment and Training Administration [TA-W-81,253] Sears Holdings Management...

  2. On-Chip Single-Plasmon Nanocircuit Driven by a Self-Assembled Quantum Dot.

    Science.gov (United States)

    Wu, Xiaofei; Jiang, Ping; Razinskas, Gary; Huo, Yongheng; Zhang, Hongyi; Kamp, Martin; Rastelli, Armando; Schmidt, Oliver G; Hecht, Bert; Lindfors, Klas; Lippitz, Markus

    2017-07-12

    Quantum photonics holds great promise for future technologies such as secure communication, quantum computation, quantum simulation, and quantum metrology. An outstanding challenge for quantum photonics is to develop scalable miniature circuits that integrate single-photon sources, linear optical components, and detectors on a chip. Plasmonic nanocircuits will play essential roles in such developments. However, for quantum plasmonic circuits, integration of stable, bright, and narrow-band single photon sources in the structure has so far not been reported. Here we present a plasmonic nanocircuit driven by a self-assembled GaAs quantum dot. Through a planar dielectric-plasmonic hybrid waveguide, the quantum dot efficiently excites narrow-band single plasmons that are guided in a two-wire transmission line until they are converted into single photons by an optical antenna. Our work demonstrates the feasibility of fully on-chip plasmonic nanocircuits for quantum optical applications.

  3. Multiple job holding, local labor markets, and the business cycle

    Directory of Open Access Journals (Sweden)

    Barry T. Hirsch

    2016-04-01

    Full Text Available Abstract About 5 % of US workers hold multiple jobs, which can exacerbate or mitigate employment changes over the business cycle. Theory is ambiguous and prior literature is not fully conclusive. We examine the relationship between multiple job holding and local unemployment rates using a large Current Population Survey data set of workers in urban labor markets during 1998–2013. Labor markets with high unemployment have moderately lower rates of multiple job holding. Yet no relationship between multiple job holding and unemployment is found within markets over time, with near-zero estimates being precisely estimated. Multiple job holding is largely acyclic. JEL Classification: J21

  4. Supply chains of forest chip production in Finland

    Energy Technology Data Exchange (ETDEWEB)

    Kaerhae, Kalle (Metsaeteho Oy, Helsinki (Finland)), e-mail: kalle.karha@metsateho.fi

    2010-07-15

    The Metsaeteho study investigated how logging residue chips, stump wood chips, and chips from small sized thinning wood and large-sized (rotten) roundwood used by heating and power plants were produced in Finland in 2008. Almost all the major forest chip suppliers in Finland were involved in the study. The total volume of forest chips supplied in 2008 by these suppliers was 6.5 TWh. The study was implemented by conducting an e-mail questionnaire survey and telephone interviews. Research data was collected in March-May 2009. The majority of the logging residue chips and chips from small-sized thinning wood were produced using the roadside chipping supply chain in Finland in 2008. The chipping at plant supply chain was also significant in the production of logging residue chips. 70% of all stump wood chips consumed were comminuted at the plant and 29% at terminals. The role of the terminal chipping supply chain was also significant in the production of chips from logging residues and small-sized wood chips. When producing chips from large-sized (rotten) roundwood, nearly a half of chips were comminuted at plants and more than 40% at terminals

  5. Supply systems of forest chip production in Finland

    Energy Technology Data Exchange (ETDEWEB)

    Kaerhae, K. (Metsaeteho Oy, Helsinki (Finland)), e-mail: kalle.karha@metsateho.fi

    2010-07-01

    The Metsaeteho study investigated how logging residue chips, stump wood chips, and chips from small-diameter thinning wood and large-sized (rotten) roundwood used by heating and power plants were produced in Finland in 2009. Almost all the major forest chip suppliers in Finland were involved in the study. The total volume of forest chips supplied in 2009 by these suppliers was 8,4 TWh. The study was implemented by conducting an e-mail questionnaire survey and telephone interviews. Research data was collected from March-May, 2010. The majority of the logging residue chips and chips from small-diameter thinning wood were produced using the roadside chipping supply system in Finland in 2009. The chipping at plant supply system was also significant in the production of logging residue chips. Nearly 70 % of all stump wood chips consumed were comminuted at the plant and 28 % at terminals. The role of the terminal chipping supply system was also significant in the production of chips from logging residues and small-diameter wood chips. When producing chips from large-sized (rotten) roundwood, similarly roughly 70 % of chips were comminuted at plants and 23 % at terminals. (orig.)

  6. Supply chains of forest chip production in Finland

    Energy Technology Data Exchange (ETDEWEB)

    Kaerhae, K. (Metsaeteho Oy, Helsinki (Finland)), Email: kalle.karha@metsateho.fi

    2009-07-01

    The Metsaeteho study investigated how logging residue chips. stump wood chips, and chips from small-sized thinning wood and large-sized (rotten) roundwood used by heating and power plants were produced in Finland in 2008. Almost all the major forest chip suppliers in Finland were involved in the study. The total volume of forest chips supplied in 2008 by these suppliers was 6,5 TWh. The study was implemented by conducting an e-mail questionnaire survey and telephone interviews. Research data was collected in March-May 2009. The majority of the logging residue chips and chips from small-sized thinning wood were produced using the roadside chipping supply chain in Finland in 2008. The chipping at plant supply chain was also significant in the production of logging residue chips. 70% of all stump wood chips consumed were comminuted at the plant and 29% at terminals. The role of the terminal chipping supply chain was also significant in the production of chips from logging residues and small-sized wood chips. When producing chips from large-sized (rotten) roundwood, nearly a half of chips were comminuted at plants and more than 40 % at terminals. (orig.)

  7. Experiment list: SRX122563 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ...catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A h

  8. Experiment list: SRX122564 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ...catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A h

  9. Experiment list: SRX122488 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Atf3 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antibody c...atalog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 h

  10. Experiment list: SRX122510 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Egr1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog... number 1=ab54966-100 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-110 ht

  11. Experiment list: SRX122491 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Atf3 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cat...alog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 htt

  12. Experiment list: SRX122519 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Irf2 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody catalo...g number 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http:

  13. Experiment list: SRX122548 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody... catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A

  14. Experiment list: SRX122468 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Rela || treatment=LPS || time=0 min || chip antibody manufacturer 1=Bethyl || chip antibody catalo...g number 1=A301-824A || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-372 htt

  15. Experiment list: SRX122561 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ...catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A h

  16. Experiment list: SRX122551 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ca...talog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A htt

  17. Experiment list: SRX122409 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Irf1 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Abcam || chip antibody cata...log number 1=ab52520 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-640 htt

  18. Experiment list: SRX122487 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Atf3 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antibody c...atalog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 h

  19. Experiment list: SRX122546 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody ...catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A h

  20. Experiment list: SRX122552 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Stat1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antibo...dy catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753

  1. Experiment list: SRX122547 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody c...atalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A ht

  2. Experiment list: SRX214084 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available turer 1=Santa Cruz || chip antibody 2=V5 || chip antibody manufacture...ge=Undifferentiated || treatment=Overexpress Sox17-V5 tagged || cell line=KH2 || chip antibody 1=Pou5f1/Oct4 || chip antibody manufac

  3. Experiment list: SRX122472 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Runx1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalo...g number 1=ab61753 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-8564 http

  4. Experiment list: SRX122544 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody c...atalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A ht

  5. Experiment list: SRX122408 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Irf1 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catal...og number 1=ab52520 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-640 http

  6. Experiment list: SRX122473 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Runx1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody ca...talog number 1=ab61753 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-8564

  7. Experiment list: SRX122513 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Egr1 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Abcam || chip antibody catal...og number 1=ab54966-100 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-110

  8. Experiment list: SRX214077 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available erentiated || treatment=Overexpress Sox17_V5 tagged || cell line=KH2 || chip antibody 1=Sox17 || chip antibody manufacture...r 1=R&D || chip antibody 2=V5 || chip antibody manufacturer 2=Invit

  9. Experiment list: SRX122497 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Rel || treatment=LPS || time=30 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cat...alog number 1=sc-71 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-70 http:

  10. Experiment list: SRX214082 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available facturer 1=Santa Cruz || chip antibody 2=V5 || chip antibody manufacture...age=Undifferentiated || treatment=Overexpress Sox17EK-V5 tagged || cell line=KH2 || chip antibody 1=Pou5f1/Oct4 || chip antibody manu

  11. Experiment list: SRX122410 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog n...umber 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://db

  12. Experiment list: SRX122567 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Stat2 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody cat...alog number 1=ab53149 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-839 ht

  13. Experiment list: SRX122466 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Relb || treatment=LPS || time=30 min || chip antibody manufacturer 1=Bethyl || chip antibody cata...log number 1=A302-183A || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-226 h

  14. Experiment list: SRX122490 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Atf3 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cat...alog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 htt

  15. Experiment list: SRX214068 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available inoic acid || cell line=F9 || chip antibody 1=Pou5f1/Oct4 || chip antibody manufacturer 1=Santa Cruz || chip... antibody 2=none || chip antibody manufacturer 2=none http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/eachDat

  16. Experiment list: SRX122558 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available hip antibody=Stat1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antib...ody catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-75

  17. Experiment list: SRX122494 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available hip antibody=Atf4 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody ca...talog number 1=ab28830-100 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-2

  18. Experiment list: SRX122545 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody c...atalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A ht

  19. Experiment list: SRX186172 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 1=YY1 || chip antibody manufacturer 1=Abcam || chip antibody 2=YY1 || chip antibody manufacturer 2=Santa Cru...ip-Seq; Mus musculus; ChIP-Seq source_name=Rag1 -/- pro-B cells || chip antibody

  20. Experiment list: SRX122557 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available hip antibody=Stat1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antib...ody catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-75

  1. Experiment list: SRX122492 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Atf3 || treatment=LPS || time=60 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cat...alog number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 htt

  2. Experiment list: SRX122493 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Atf4 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody catal...og number 1=ab28830-100 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-200

  3. Experiment list: SRX122571 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Stat2 || treatment=LPS || time=30 min || chip antibody manufacturer 1=Abcam || chip antibody catal...og number 1=ab53149 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-839 http

  4. Experiment list: SRX122411 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Junb || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog n...umber 1=ab28838 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-46 http://db

  5. Experiment list: SRX122549 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Stat1 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody... catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753A

  6. Experiment list: SRX122498 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Rel || treatment=LPS || time=60 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cat...alog number 1=sc-71 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-70 http:

  7. Experiment list: SRX122516 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available antibody=Irf2 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody catalo...g number 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http:

  8. Experiment list: SRX122484 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Atf3 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody cata...log number 1=sc-188 || chip antibody manufacturer 2=Abcam || chip antibody catalog number 2=ab70005-100 http

  9. Experiment list: SRX122514 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available tibody=Irf2 || treatment=LPS || time=0 min || chip antibody manufacturer 1=Abcam || chip antibody catalog nu...mber 1=ab65048 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-498 http://db

  10. Experiment list: SRX122570 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available p antibody=Stat2 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody cat...alog number 1=ab53149 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-839 ht

  11. Experiment list: SRX214080 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available cturer 1=Santa Cruz || chip antibody 2=V5 || chip antibody manufacture...ge=Undifferentiated || treatment=Overexpress Sox2KE-V5 tagged || cell line=KH2 || chip antibody 1=Pou5f1/Oct4 || chip antibody manufa

  12. Experiment list: SRX122569 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Stat2 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody ca...talog number 1=ab53149 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-839 h

  13. Experiment list: SRX122511 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Egr1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Abcam || chip antibody cat...alog number 1=ab54966-100 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-11

  14. Experiment list: SRX122471 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Rela || treatment=LPS || time=60 min || chip antibody manufacturer 1=Bethyl || chip antibody cat...alog number 1=A301-824A || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-372

  15. Experiment list: SRX122495 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ntibody=Rel || treatment=LPS || time=0 min || chip antibody manufacturer 1=Santa Cruz || chip antibody catal...og number 1=sc-71 || chip antibody manufacturer 2=Santa Cruz || chip antibody catalog number 2=sc-70 http://

  16. Experiment list: SRX122554 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ip antibody=Stat1 || treatment=LPS || time=120 min || chip antibody manufacturer 1=Santa Cruz || chip antibo...dy catalog number 1=sc-346 || chip antibody manufacturer 2=Bethyl || chip antibody catalog number 2=A302-753

  17. Experiment list: SRX214081 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available cturer 1=Santa Cruz || chip antibody 2=V5 || chip antibody manufacture...ge=Undifferentiated || treatment=Overexpress Sox2KE-V5 tagged || cell line=KH2 || chip antibody 1=Pou5f1/Oct4 || chip antibody manufa

  18. Electrocautery Devices With Feedback Mode and Teflon-Coated Blades Create Less Surgical Smoke for a Quality Improvement in the Operating Theater.

    Science.gov (United States)

    Kisch, Tobias; Liodaki, Eirini; Kraemer, Robert; Mailaender, Peter; Brandenburger, Matthias; Hellwig, Veronika; Stang, Felix H

    2015-07-01

    Monopolar electrocautery is a fast and elegant cutting option. However, as it creates surgical smoke containing polycyclic aromatic hydrocarbons (PAHs), it may be hazardous to the health of the surgical team. Although new technologies, such as feedback mode (FM) and Teflon-coated blades (TBs), reduce tissue damage, their impact on surgical smoke creation has not yet been elucidated. Therefore, we analyzed the plume at its source.The aim of this study was to evaluate if electrocautery FM and TBs create less surgical smoke.Porcine tissue containing skin was cut in a standardized manner using sharp-edged Teflon-coated blades (SETBs), normal-shaped TBs, or stainless steel blades (SSBs). Experiments were performed using FM and pure-cut mode. Surgical smoke was sucked through filters or adsorption tubes. Subsequently, filters were scanned and analyzed using a spectrophotometer. A high-performance liquid chromatography (HPLC-UV) was performed to detect benzo[a]pyrene (BaP) and phenanthrene as 2 of the most critical PAHs. Temperature changes at the cutting site were measured by an infrared thermometer.In FM, more surgical smoke was created using SSB compared with TBs (P < 0.001). Furthermore, differences between FM and pure-cut mode were found for SSB and TB (P < 0.001), but not for SETB (P = 0.911). Photometric analysis revealed differences in the peak heights of the PAH spectrum. In HLPC-UV, the amount of BaP and phenanthrene detected was lower for TB compared with SSB. Tissue temperature variations increased when SSB was used in FM and pure-cut mode. Furthermore, different modes revealed higher temperature variations with the use of SETB (P = 0.004) and TB (P = 0.005) during cutting, but not SSB (P = 0.789).We found that the use of both TBs and FM was associated with reduced amounts of surgical smoke created during cutting. Thus, the surgical team may benefit from the adoption of such new technologies, which could contribute to the primary

  19. Chip-to-Chip Half Duplex Spiking Data Communication over Power Supply Rails

    Science.gov (United States)

    Hashida, Takushi; Nagata, Makoto

    Chip-to-chip serial data communication is superposed on power supply over common Vdd/Vss connections through chip, package, and board traces. A power line transceiver demonstrates half duplex spiking communication at more than 100Mbps. A pair of transceivers consumes 1.35mA from 3.3V, at 130Mbps. On-chip power line LC low pass filter attenuates pseudo-differential communication spikes by 30dB, purifying power supply current for internal circuits. Bi-directional spiking communication was successfully examined in a 90-nm CMOS prototype setup of on-chip waveform capturing. A micro controller forwards clock pulses to and receives data streams from a comparator based waveform capturer formed on a different chip, through a single pair of power and ground traces. The bit error rate is small enough not to degrade waveform acquisition capability, maintaining the spurious free dynamic range of higher than 50dB.

  20. Instrument for measuring moisture in wood chips

    Energy Technology Data Exchange (ETDEWEB)

    Werme, L

    1980-06-01

    A method to determine the moisture content in wood chips, in batch and on-line, has been investigated. The method can be used for frozen and non frozen chips. Samples of wood chips are thawn and dryed with microwaves. During the drying the sample is weighed continously and the rate of drying is measured. The sample is dried t 10 percent moisture content. The result is extrapolated to the drying rate zero. The acccuracy at the method is 1.6 to 1.7 percent for both frozen and non frozen chips. The accuracy of the method is considered acceptable, but sofisticated sampling equipment is necessary. This makes the method too complex to make the instrument marketable.

  1. Medicaid CHIP Environmental Scanning and Program Char...

    Data.gov (United States)

    U.S. Department of Health & Human Services — ESPC development is sponsored by the CMS Center for Medicare and Medicaid Innovation in partnership with the Center for Medicaid and CHIP Services (CMCS) under the...

  2. Wafer of Intel Pentium 4 Prescott Chips

    CERN Multimedia

    Silicon wafer with hundreds of Penryn cores (microprocessor). There are around four times as many Prescott chips can be made per wafer than with the previous generation of Northwood-core Pentium 4 processors. It is faster and cheaper.

  3. On-chip power delivery and management

    CERN Document Server

    Vaisband, Inna P; Popovich, Mikhail; Mezhiba, Andrey V; Köse, Selçuk; Friedman, Eby G

    2016-01-01

    This book describes methods for distributing power in high speed, high complexity integrated circuits with power levels exceeding many tens of watts and power supplies below a volt. It provides a broad and cohesive treatment of power delivery and management systems and related design problems, including both circuit network models and design techniques for on-chip decoupling capacitors, providing insight and intuition into the behavior and design of on-chip power distribution systems. Organized into subareas to provide a more intuitive flow to the reader, this fourth edition adds more than a hundred pages of new content, including inductance models for interdigitated structures, design strategies for multi-layer power grids, advanced methods for efficient power grid design and analysis, and methodologies for simultaneously placing on-chip multiple power supplies and decoupling capacitors. The emphasis of this additional material is on managing the complexity of on-chip power distribution networks.

  4. Distributed Processing Using Single-chip Microcomputers

    National Research Council Canada - National Science Library

    Pritchett, William

    1996-01-01

    This project investigates the use of single-chip microprocessors as nodes in a token ring control network and explores the implementation of a protocol to manage communication across such a network...

  5. Optical bio-sensors in microfluidic chips

    NARCIS (Netherlands)

    Pollnau, Markus; Dongre, C.; Pham Van So, P.V.S.; Bernhardi, Edward; Worhoff, Kerstin; de Ridder, R.M.; Hoekstra, Hugo

    2012-01-01

    Direct femtosecond laser writing is used to integrate optical waveguides that intersect the microfluidic channels in a commercial optofluidic chip. With laser excitation, fluorescently labeled DNA molecules of different sizes are separated by capillary electrophoresis with high operating speed and

  6. Optics and molecules on atom chips

    International Nuclear Information System (INIS)

    Tscherneck, M; Holmes, M E; Quinto-Su, P A; Haimberger, C; Kleinert, J; Bigelow, N P

    2005-01-01

    In this paper we will report on four experiments which have been carried out in the last year in our group. All of these experiments are necessary steps towards the trapping and probing of ultracold molecules on a chip surface

  7. The CHIP surveys | IDRC - International Development Research ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2011-07-08

    Jul 8, 2011 ... Many of the young scholars relied on data generated by the China Household Income Project (CHIP), a collaboration between Chinese and international economists that has tracked inequality in China for the past 20 years.

  8. Networks of ultra-fine Ag nanocrystals in a Teflon AF (registered) matrix by vapour phase e-beam-assisted deposition

    International Nuclear Information System (INIS)

    Biswas, A; Bayer, I S; Marken, B; Pounds, T D; Norton, M G

    2007-01-01

    We have fabricated nanocomposite thin films comprising silver (Ag) nanoparticles dispersed in a Teflon AF (registered) polymer matrix using electron-beam-assisted physical vapour deposition. Four different Ag nanoparticle volume fillings (20%, 35%, 70% and 75%) were achieved by varying the relative metal-polymer evaporation rates with the formation of highly crystalline Ag nanoparticles regardless of the filling ratio. The present fabrication technique allowed full control over dispersion uniformity of nanoparticles in the polymer network. At 20% and 35% metal volume fillings, the nanocomposite film morphology consists of a uniformly dispersed assembly of equiaxed isolated Ag nanoparticles. At higher metal volume fractions the nanocomposite structures displayed two different and unique Ag nanoparticle arrangements within the polymer matrix. In particular, at 70% metal filling, the formation of irregularly shaped clusters of individually assembled nanocrystals was observed. At a slightly higher volume filling (75%), larger irregularly shaped Ag nanocrystals that appeared to be the result of coalescence and grain growth were observed. Finally, a composite theory developed by Tandon and Weng was used to estimate various elastic properties of the nanocomposite films. At high metal filling, the reinforcing effect of the Ag nanoparticles was reflected as approximately a sixfold increase in the elastic modulus compared to the virgin polymer film. Possible applications of such ultra-fine metal nanoparticles networks are discussed

  9. Comparison of near-infrared and Raman spectroscopy for on-line monitoring of etchant solutions directly through a Teflon tube

    International Nuclear Information System (INIS)

    Kim, Jaejin; Hwang, Jinyoung; Chung, Hoeil

    2008-01-01

    Both near-infrared (NIR) and Raman spectroscopy have been studied for the quantitative measurement of components (H 3 PO 4 , HNO 3 , and CH 3 COOH) in an etchant solution and the corresponding prediction robustness has been evaluated. Both measurements were accomplished by illuminating radiation directly through a Teflon tube. Raman spectral features of each component were much clearer and more selective than those observed in the NIR spectrum. Especially, NIR spectral variation pertinent to H 3 PO 4 and HNO 3 were mostly based on the displacement and perturbation of water bands rather than due solely to NIR absorption. Therefore, the resulting spectral variations were not highly specific. When the validation set contained minor spectral variations resulting from a slight instrumental change, NIR prediction performance for all three components degraded substantially by showing obvious prediction bias. However, the accuracies of Raman predictions were maintained. Since partial least squares (PLS) models for each component were built using NIR spectra of poor specificity with broadly overlapping features, even minor spectral differences introduced by instrumental variations sensitively influenced the prediction performance of the NIR models. Overall, the selectivity (specificity) of a targeting spectroscopic method should be considered critically to secure prediction robustness for monitoring components in an etchant solution

  10. Analysis of dosimetric peaks of MgB4O7:Dy (40% Teflon versus LiF:Mg,Ti TL detectors

    Directory of Open Access Journals (Sweden)

    Paluch-Ferszt Monika

    2016-03-01

    Full Text Available Magnesium tetraborate doped with dysprosium (MgB4O7:Dy is known as a good thermoluminophor for personal dosimetry of gamma ray and X-ray radiation because of its high sensitivity and close tissue equivalence. This material can be produced by different routes. The sintered pastilles of magnesium tetraborate mixed with Teflon (40% used in this work were manufactured at the Federal University of Sergipe, Department of Physics by the solid-state synthesis. Magnesium tetraborate was already used for high-dose dosimetry, exhibiting linearity for a wide range of doses. In this work, the authors examined its main characteristics prior to potential use of detectors in everyday dosimetry, comparing this material to a widely used LiF:Mg,Ti phosphor. The following tests influencing dosimetric peaks of MgB4O7:Dy were presented: (1 the shape of the glow curves, (2 annealing conditions and post-irradiation annealing and its influence for background of the detectors, (3 the choice of the heating rates at the read-out and (4 the threshold dose, that is, the lowest possible dose to be measured. Similar tests were performed with LiF:Mg,Ti detectors, produced and widely used in Poland. The results were compared and discussed.

  11. Unusual ratio of TL readouts of different discs of personnel monitoring TLD badge based on CaSO4: Dy teflon disc

    International Nuclear Information System (INIS)

    Pradhan, S.M.; Ande, C.D.; Kher, R.K.; Chourasiya, G.; Vashishtha, R.; Gupta, A.K.

    2005-01-01

    In India Personnel Monitoring against external radiation hazard of gamma, beta and X-rays is provided using a TLD badge based on CaSO 4 : Dy Teflon TLD disc. Unusual ratios of TL readouts of different discs of TLD badge (Disc Ratios) observed for service TLD badges of radiation workers were investigated and simulated. Simulations were carried out by exposure of TLD badges by speck type radioactive sources placed in contact of badges, exposure of TLD badges placed on concrete floor to a radiography source. Clues for the simulation were obtained from nature of work, radiological conditions during course of individuals' work whose TLD badges showed the unusual disc ratios and geometrical calculations performed. It is concluded that although the actual exposure condition during use is unknown, the unusual disk ratios observed for the service TLD badges can be simulated and utilized to arrive at probable exposure conditions. The study helped in investigations of the abnormal exposures and assigning doses to the concerned radiation workers. (author)

  12. Industry trends in chip storage and handling

    Science.gov (United States)

    Tim McDonald; Alastair Twaddle

    2000-01-01

    A survey was conducted of US pulp and paper mills to characterize chip pile management trends. The survey was developed by members of the TAPPI Fiber Raw Material Supply Committee and mailed out in December of 1999. There were a total of 80 respondents to the survey. A typical mill was foudn to maintain one sofhvood and one hardwood chip pile, with maximum inventory of...

  13. FY1995 evolvable hardware chip; 1995 nendo shinkasuru hardware chip

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This project aims at the development of 'Evolvable Hardware' (EHW) which can adapt its hardware structure to the environment to attain better hardware performance, under the control of genetic algorithms. EHW is a key technology to explore the new application area requiring real-time performance and on-line adaptation. 1. Development of EHW-LSI for function level hardware evolution, which includes 15 DSPs in one chip. 2. Application of the EHW to the practical industrial applications such as data compression, ATM control, digital mobile communication. 3. Two patents : (1) the architecture and the processing method for programmable EHW-LSI. (2) The method of data compression for loss-less data, using EHW. 4. The first international conference for evolvable hardware was held by authors: Intl. Conf. on Evolvable Systems (ICES96). It was determined at ICES96 that ICES will be held every two years between Japan and Europe. So the new society has been established by us. (NEDO)

  14. Materials for microfluidic chip fabrication.

    Science.gov (United States)

    Ren, Kangning; Zhou, Jianhua; Wu, Hongkai

    2013-11-19

    Through manipulating fluids using microfabricated channel and chamber structures, microfluidics is a powerful tool to realize high sensitive, high speed, high throughput, and low cost analysis. In addition, the method can establish a well-controlled microenivroment for manipulating fluids and particles. It also has rapid growing implementations in both sophisticated chemical/biological analysis and low-cost point-of-care assays. Some unique phenomena emerge at the micrometer scale. For example, reactions are completed in a shorter amount of time as the travel distances of mass and heat are relatively small; the flows are usually laminar; and the capillary effect becomes dominant owing to large surface-to-volume ratios. In the meantime, the surface properties of the device material are greatly amplified, which can lead to either unique functions or problems that we would not encounter at the macroscale. Also, each material inherently corresponds with specific microfabrication strategies and certain native properties of the device. Therefore, the material for making the device plays a dominating role in microfluidic technologies. In this Account, we address the evolution of materials used for fabricating microfluidic chips, and discuss the application-oriented pros and cons of different materials. This Account generally follows the order of the materials introduced to microfluidics. Glass and silicon, the first generation microfluidic device materials, are perfect for capillary electrophoresis and solvent-involved applications but expensive for microfabriaction. Elastomers enable low-cost rapid prototyping and high density integration of valves on chip, allowing complicated and parallel fluid manipulation and in-channel cell culture. Plastics, as competitive alternatives to elastomers, are also rapid and inexpensive to microfabricate. Their broad variety provides flexible choices for different needs. For example, some thermosets support in-situ fabrication of

  15. The water holding capacity of bark in Danish angiosperm trees

    DEFF Research Database (Denmark)

    Larsen, Hanne Marie Ellegård; Rasmussen, Hanne Nina; Nord-Larsen, Thomas

    The water holding capacity of bark in seven Danish angiosperm trees was examined. The aim of the study was (1) to examine height trends and (2) bark thickness trends in relation to the water holding capacity and (3) to determine interspecific differences. The wet-weight and dry-weight of a total...... number of 427 bark samples were measured. The water holding capacity was calculated as the difference between wet-weight and dry-weight per wet-weight. The water holding capacity increased with elevation in most tree species and contrary to the expectation, thinner bark generally had a higher water...... holding capacity. Differences in the water holding capacity of bark may influence the occurrence and distribution of a wide range of bark-living organisms including the distribution of corticolous lichens....

  16. The Advances, Challenges and Future Possibilities of Millimeter-Wave Chip-to-Chip Interconnections for Multi-Chip Systems

    Directory of Open Access Journals (Sweden)

    Amlan Ganguly

    2018-02-01

    Full Text Available With aggressive scaling of device geometries, density of manufacturing faults is expected to increase. Therefore, yield of complex Multi-Processor Systems-on-Chips (MP-SoCs will decrease due to higher probability of manufacturing defects especially, in dies with large area. Therefore, disintegration of large SoCs into smaller chips called chiplets will improve yield and cost of complex platform-based systems. This will also provide functional flexibility, modular scalability as well as the capability to integrate heterogeneous architectures and technologies in a single unit. However, with scaling of the number of chiplets in such a system, the shared resources in the system such as the interconnection fabric and memory modules will become performance bottlenecks. Additionally, the integration of heterogeneous chiplets operating at different frequencies and voltages can be challenging. State-of-the-art inter-chip communication requires power-hungry high-speed I/O circuits and data transfer over long wired traces on substrates. This increases energy consumption and latency while decreasing data bandwidth for chip-to-chip communication. In this paper, we explore the advances and the challenges of interconnecting a multi-chip system with millimeter-wave (mm-wave wireless interconnects from a variety of perspectives spanning multiple aspects of the wireless interconnection design. Our discussion on the recent advances include aspects such as interconnection topology, physical layer, Medium Access Control (MAC and routing protocols. We also present some potential paradigm-shifting applications as well as complementary technologies of wireless inter-chip communications.

  17. Intangible Capital and Corporate Cash Holdings: Theory and Evidence

    OpenAIRE

    Dalida Kadyrzhanova; Antonio Falato; Jae Sim

    2012-01-01

    The rise in intangible capital is a fundamental driver of the secular trend in US corporate cash holdings over the last decades. We construct a new measure of intangible capital and show that intangible capital is the most important firm-level determinant of corporate cash holdings. Our measure accounts for almost as much of the secular increase in cash since the 1980s as all other standard determinants together. We then develop a new model of corporate cash holdings that introduces intangibl...

  18. DESIGN OF INFORMATION MANAGEMENT SYSTEM OF VERTICALLY INTEGRATED AGRICULTURAL HOLDINGS

    Directory of Open Access Journals (Sweden)

    Александр Витальевич ШМАТКО

    2015-05-01

    Full Text Available The paper deals with an approach to the design and development of information systems for the management and optimization of the organizational structure of vertically integrated agricultural holdings. A review of the problems of building and improving the organizational structure of vertically integrated agricultural holding is made. A method of constructing a discrete model management structure agricultural holding, which minimizes the costs associated with attracting applicants to work, is proposed.

  19. Discovery Mondays: Chips with everything!

    CERN Multimedia

    2003-01-01

    Electronics to hear the sound of matter From the TV to the fridge, the wristwatch to the washing machine, hardly any consumer product in this day and age can escape the influence of electronics, and the ever more powerful microchip. So it's hardly surprising to learn that such sophisticated devices as particle detectors are bristling with the best and most powerful microchips technology has to offer! Particle detectors known as trackers are like 3-D digital cameras. They are used to detect the tracks of particles created in the accelerator and to pin down their momentum and thus their identity. A chip seen with a microscope.Come to Microcosm and see with your own eyes a silicon detector, packed full of electronic microchips. Get up closer with a microscope and admire the way in which the fine details of the etchings break down light. Further on, watch a TV as you've never done before - from the inside! Then try out our special simulation game that helps you understand the purpose of a particle detector. Bu...

  20. Flip chip assembly of thinned chips for hybrid pixel detector applications

    CERN Document Server

    Fritzsch, T; Woehrmann, M; Rothermund, M; Huegging, F; Ehrmann, O; Oppermann, H; Lang, K.D

    2014-01-01

    There is a steady trend to ultra-thin microelectronic devices. Especially for future particle detector systems a reduced readout chip thickness is required to limit the loss of tracking precision due to scattering. The reduction of silicon thickness is performed at wafer level in a two-step thinning process. To minimize the risk of wafer breakage the thinned wafer needs to be handled by a carrier during the whole process chain of wafer bumping. Another key process is the flip chip assembly of thinned readout chips onto thin sensor tiles. Besides the prevention of silicon breakage the minimization of chip warpage is one additional task for a high yield and reliable flip chip process. A new technology using glass carrier wafer will be described in detail. The main advantage of this technology is the combination of a carrier support during wafer processing and the chip support during flip chip assembly. For that a glass wafer is glue-bonded onto the backside of the thinned readout chip wafer. After the bump depo...

  1. On-chip digital power supply control for system-on-chip applications

    NARCIS (Netherlands)

    Meijer, M.; Pineda de Gyvez, J.; Otten, R.H.J.M.

    2005-01-01

    The authors presented an on-chip, fully-digital, power-supply control system. The scheme consists of two independent control loops that regulate power supply variations due to semiconductor process spread, temperature, and chip's workload. Smart power-switches working as linear voltage regulators

  2. The Determinants and Implications of Corporate Cash Holdings

    OpenAIRE

    Tim Opler; Lee Pinkowitz; Rene Stulz; Rohan Williamson

    1997-01-01

    We examine the determinants and implications of holdings of cash and marketable" securities by publicly traded U.S. firms in the 1971-1994 period. Firms with strong growth" opportunities and riskier cash flows hold relatively high ratios of cash to total assets. Firms" that have the greatest access to the capital markets (e.g. large firms and those with credit" ratings) tend to hold lower ratios of cash to total assets. These results are consistent with the" view that firms hold liquid assets...

  3. Sports-related lung injury during breath-hold diving

    Directory of Open Access Journals (Sweden)

    Tanja Mijacika

    2016-12-01

    Full Text Available The number of people practising recreational breath-hold diving is constantly growing, thereby increasing the need for knowledge of the acute and chronic effects such a sport could have on the health of participants. Breath-hold diving is potentially dangerous, mainly because of associated extreme environmental factors such as increased hydrostatic pressure, hypoxia, hypercapnia, hypothermia and strenuous exercise. In this article we focus on the effects of breath-hold diving on pulmonary function. Respiratory symptoms have been reported in almost 25% of breath-hold divers after repetitive diving sessions. Acutely, repetitive breath-hold diving may result in increased transpulmonary capillary pressure, leading to noncardiogenic oedema and/or alveolar haemorrhage. Furthermore, during a breath-hold dive, the chest and lungs are compressed by the increasing pressure of water. Rapid changes in lung air volume during descent or ascent can result in a lung injury known as pulmonary barotrauma. Factors that may influence individual susceptibility to breath-hold diving-induced lung injury range from underlying pulmonary or cardiac dysfunction to genetic predisposition. According to the available data, breath-holding does not result in chronic lung injury. However, studies of large populations of breath-hold divers are necessary to firmly exclude long-term lung damage.

  4. Real-Time Measurements of Gas/Particle Partitioning of Semivolatile Organic Compounds into Different Probe Particles in a Teflon Chamber

    Science.gov (United States)

    Liu, X.; Day, D. A.; Ziemann, P. J.; Krechmer, J. E.; Jimenez, J. L.

    2017-12-01

    The partitioning of semivolatile organic compounds (SVOCs) into and out of particles plays an essential role in secondary organic aerosol (SOA) formation and evolution. Most atmospheric models treat the gas/particle partitioning as an equilibrium between bulk gas and particle phases, despite potential kinetic limitations and differences in thermodynamics as a function of SOA and pre-existing OA composition. This study directly measures the partitioning of oxidized compounds in a Teflon chamber in the presence of single component seeds of different phases and polarities, including oleic acid, squalane, dioctyl sebacate, pentaethylene glycol, dry/wet ammonium sulfate, and dry/wet sucrose. The oxidized compounds are generated by a fast OH oxidation of a series of alkanols under high nitric oxide conditions. The observed SOA mass enhancements are highest with oleic acid, and lowest with wet ammonium sulfate and sucrose. A chemical ionization mass spectrometer (CIMS) was used to measure the decay of gas-phase organic nitrates, which reflects uptake by particles and chamber walls. We observed clear changes in equilibrium timescales with varying seed concentrations and in equilibrium gas-phase concentrations across different seeds. In general, the gas evolution can be reproduced by a kinetic box model that considers partitioning and evaporation with particles and chamber walls, except for the wet sucrose system. The accommodation coefficient and saturation mass concentration of each species in the presence of each seed are derived using the model. The changes in particle size distributions and composition monitored by a scanning mobility particle sizer (SMPS) and a high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) are investigated to probe the SOA formation mechanism. Based on these results, the applicability of partitioning theory to these systems and the relevant quantitative parameters, including the dependencies on seed particle composition, will

  5. Prototype detection unit for the CHIPS experiment

    Science.gov (United States)

    Pfützner, Maciej M.

    2017-09-01

    CHIPS (CHerenkov detectors In mine PitS) is an R&D project aiming to develop novel cost-effective neutrino detectors, focused on measuring the CP-violating neutrino mixing phase (δ CP). A single detector module, containing an enclosed volume of purified water, would be submerged in an existing lake, located in a neutrino beam. A staged approach is proposed with first detectors deployed in a flooded mine pit in Northern Minnesota, 7 mrad off-axis from the existing NuMI beam. A small proof-of-principle model (CHIPS-M) has already been tested and the first stage of a fully functional 10 kt module (CHIPS-10) is planned for 2018. One of the instruments submerged on board of CHIPS-M in autumn 2015 was a prototype detection unit, constructed at Nikhef. The unit contains hardware borrowed from the KM3NeT experiment, including 16 3 inch photomultiplier tubes and readout electronics. In addition to testing the mechanical design and data acquisition, the detector was used to record a large sample of cosmic ray muon events. The collected data is valuable for characterising the cosmic muon background and validating a Monte Carlo simulation used to optimise future designs. This paper introduces the CHIPS project, describes the design of the prototype unit, and presents the results of a preliminary data analysis.

  6. 34 CFR 200.73 - Applicable hold-harmless provisions.

    Science.gov (United States)

    2010-07-01

    ... meet the eligibility requirements for a basic grant, targeted grant, or education finance incentive... Improving Basic Programs Operated by Local Educational Agencies Allocations to Leas § 200.73 Applicable hold... provided in § 200.100(d), an SEA must apply the hold-harmless requirement separately for basic grants...

  7. PBL og de sammensatte hold på kandidatuddannelser

    DEFF Research Database (Denmark)

    Engen, Mie; Fallov, Mia Arp; Jensen, Rune Hagel Skaarup

    Denne rapport omhandler pædagogiske udfordringer og muligheder i Aalborgs Problembaserede Læringstilgang (PBL), når den omsættes til pædagogisk og didaktisk handling på kandidatuddannelser med sammensatte hold. Sammensatte hold betyder i denne sammenhæng kandidatuddannelser, hvor de optagne stude...

  8. Holdings of the Federal German Government in 1988

    International Nuclear Information System (INIS)

    1989-01-01

    The report provides an overview of the direct and more important indirect holdings of the Federal German Government and its special assets ERP, Compensation Fund, Federal Mail and Federal Railway. Part A provides a total survey of the number of government holdings. For the direct holdings of the Federal Government and its special assets the shares in nominal capital and registered foundation capital, number of employees and dividend on profits are presented. In Parts B to M, the narrative parts, the most important holdings are reported on more in detail (sphere of activities, economic development, composition of the corporate bodies). The listing order does not reflect any order of importance. The following part N contains alphabetic indexes. Indexes I and II list all the direct holdings of the Federal Government and its special assets irrespective of the nominal capital volume and share of holdings. In index III, are listed only companies with corporate activites and a nominal capital of at least 100.000 German Marks of which the Federal Government and/or its special assets hold directly or indirectly at least 25 percent. Holdings of these undertakings of which the Federal Government does not have majority ownership, and which are not dependent on it under the regulations governing shareholdings either, are not considered. (orig.) [de

  9. 76 FR 54717 - Supervised Securities Holding Companies Registration

    Science.gov (United States)

    2011-09-02

    ... other financial statements submitted to the securities holding company's current consolidated supervisor... Y-9ES), The Supplement to the Consolidated Financial Statements for Bank Holding Companies (FR Y-9CS... Companies (FR Y-6), The Report of Foreign Banking Organizations (FR Y-7), The Consolidated Financial...

  10. Korean Investment in EU through Holding Companies: A Case Study

    Directory of Open Access Journals (Sweden)

    Seong-Bong Lee

    1998-09-01

    Full Text Available When transnational enterprises set subsidiary companies in certain area, their major aim is to invest indirectly through the holding companies which hold invested share. Especially, because of the geographical neighborhood and economic integration, investing by holding companies is common in Europe. In Europe, taking full advantage of holding company is out of the following two reasons. Firstly, the efficiency and flexibility of the manage strategy of a group could be elevated by making full use of the holding company. Secondly, the transnational enterprises have the possibility of flexible management at the tax strategy level. Recently, the Korean companies are making the best use of holding companies when they are Marching into the EU. In the year 1996, group K purchased 8 enterprises of a certain industry section of B, a German company, setting holding companies in Germany. The analysis result of the case shows that the manage efficiency could be risen and the taxation could be reduced by way of making use of holding companies. As to the Korean investment efficiency of overseas indirect investment in EU, this thesis brought forward a blueprint about integrating the local companies.

  11. Automated Inventory Control System for Nigeria Power Holding

    African Journals Online (AJOL)

    PROF. O. E. OSUAGWU

    2013-09-01

    Sep 1, 2013 ... Power Holding Company of Nigeria (PHCN) currently holds in excess of millions in spare parts inventory ... equipment/utilities at all times in view of stochastic item ... line contingency and small conductor sizing lines which are ...

  12. 7 CFR 981.52 - Holding requirement and delivery.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Holding requirement and delivery. 981.52 Section 981.52 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING... delivery. Each handler shall, at all times, hold in his possession or under his control, in proper storage...

  13. Cash Holdings Policy: a Dynamic Analysis of Brazilian Companies

    Directory of Open Access Journals (Sweden)

    Fadwa Muhieddine Dahrouge

    2013-09-01

    Full Text Available This paper investigates how corporate cash holdings were adjusted over time for Brazilian companies during the crisis of 2008-2009. We adopt a dynamic model of corporate cash holdings to evaluate the main determinants for the speed of adjustment of cash holdings at the optimum level. We find evidence that: a the adjustment costs of Brazilian companies are high implying a delay in reaching the optimum level of cash; b the low speed adjustment to the optimum level is due to the limited availability of credit and the high cost of bank debt; c during crisis, the changes in working capital are positively related to the level of cash holdings providing evidence that companies prefer finance to growth with liquidity; d companies have looked for long-term financing to secure liquidity rather than investing on fixed assets, implying a negative relationship between investment and cash holding.

  14. PENGARUH KUALITAS AKRUAL DAN LEVERAGE TERHADAP CASH HOLDING PERUSAHAAN

    Directory of Open Access Journals (Sweden)

    Anggita Langgeng Wijaya

    2010-12-01

    Full Text Available This research tests the effect of accrual quality and leverage on corporate cash holding for a sample of manufacturing company listed in Indonesian Stock Exchange over the period 2006-2007. This research also tests the role of asymmetric information as a mediating variable on the relation between accrual quality and cash holding. Population of this research is 197 manufacturing companies at the Indonesian Stock Exchange. This research uses the purposive sampling method. Hypothesis test of this research em­ploys multiple regression analysis and path analysis. The results show that: accrual quality does not affect asymmetric information; asymmetric information positively affects corporate cash holdings; asymmetric information is not a mediating variable on the relation between accrual quality and cash holding; leverage negatively affects corporate cash holding.

  15. The Parent Control in the Mechanical Engineering Management-Holding

    Science.gov (United States)

    Šnircová, Jana; Hodulíková, Petra; Joehnk, Peter

    2012-12-01

    The group of entities under the control of parent, so called holding, is arisen as the result and the most often used form of the business concentration nowadays. The paper is focused to find special tasks of parent company for to preserve effective unified economic control in the management-holding. The unified economic control the holding exists in the conditions of the main conflict of interest - holding is not a legal but economic unit and the connected companies into it have a legal autonomy with the economic dependence. The unified economic control limits the financial independence of every individual company of the holding. The attention in the paper is concentrated to the management concept of the parent control, i.e. the parent company supervises the control of intragroup flows and all of subsidiaries production activities.

  16. The impact of CHIP premium increases on insurance outcomes among CHIP eligible children.

    Science.gov (United States)

    Nikolova, Silviya; Stearns, Sally

    2014-03-03

    Within the United States, public insurance premiums are used both to discourage private health policy holders from dropping coverage and to reduce state budget costs. Prior research suggests that the odds of having private coverage and being uninsured increase with increases in public insurance premiums. The aim of this paper is to test effects of Children's Health Insurance Program (CHIP) premium increases on public insurance, private insurance, and uninsurance rates. The fact that families just below and above a state-specific income cut-off are likely very similar in terms of observable and unobservable characteristics except the premium contribution provides a natural experiment for estimating the effect of premium increases. Using 2003 Medical Expenditure Panel Survey (MEPS) merged with CHIP premiums, we compare health insurance outcomes for CHIP eligible children as of January 2003 in states with a two-tier premium structure using a cross-sectional regression discontinuity methodology. We use difference-in-differences analysis to compare longitudinal insurance outcomes by December 2003. Higher CHIP premiums are associated with higher likelihood of private insurance. Disenrollment from CHIP in response to premium increases over time does not increase the uninsurance rate. When faced with higher CHIP premiums, private health insurance may be a preferable alternative for CHIP eligible families with higher incomes. Therefore, competition in the insurance exchanges being formed under the Affordable Care Act could enhance choice.

  17. A compact PE memory for vision chips

    Science.gov (United States)

    Cong, Shi; Zhe, Chen; Jie, Yang; Nanjian, Wu; Zhihua, Wang

    2014-09-01

    This paper presents a novel compact memory in the processing element (PE) for single-instruction multiple-data (SIMD) vision chips. The PE memory is constructed with 8 × 8 register cells, where one latch in the slave stage is shared by eight latches in the master stage. The memory supports simultaneous read and write on the same address in one clock cycle. Its compact area of 14.33 μm2/bit promises a higher integration level of the processor. A prototype chip with a 64 × 64 PE array is fabricated in a UMC 0.18 μm CMOS technology. Five types of the PE memory cell structure are designed and compared. The testing results demonstrate that the proposed PE memory architecture well satisfies the requirement of the vision chip in high-speed real-time vision applications, such as 1000 fps edge extraction.

  18. A compact PE memory for vision chips

    International Nuclear Information System (INIS)

    Shi Cong; Chen Zhe; Yang Jie; Wu Nanjian; Wang Zhihua

    2014-01-01

    This paper presents a novel compact memory in the processing element (PE) for single-instruction multiple-data (SIMD) vision chips. The PE memory is constructed with 8 × 8 register cells, where one latch in the slave stage is shared by eight latches in the master stage. The memory supports simultaneous read and write on the same address in one clock cycle. Its compact area of 14.33 μm 2 /bit promises a higher integration level of the processor. A prototype chip with a 64 × 64 PE array is fabricated in a UMC 0.18 μm CMOS technology. Five types of the PE memory cell structure are designed and compared. The testing results demonstrate that the proposed PE memory architecture well satisfies the requirement of the vision chip in high-speed real-time vision applications, such as 1000 fps edge extraction. (semiconductor integrated circuits)

  19. Variation Tolerant On-Chip Interconnects

    CERN Document Server

    Nigussie, Ethiopia Enideg

    2012-01-01

    This book presents design techniques, analysis and implementation of high performance and power efficient, variation tolerant on-chip interconnects.  Given the design paradigm shift to multi-core, interconnect-centric designs and the increase in sources of variability and their impact in sub-100nm technologies, this book will be an invaluable reference for anyone concerned with the design of next generation, high-performance electronics systems. Provides comprehensive, circuit-level explanation of high-performance, energy-efficient, variation-tolerant on-chip interconnect; Describes design techniques to mitigate problems caused by variation; Includes techniques for design and implementation of self-timed on-chip interconnect, delay variation insensitive communication protocols, high speed signaling techniques and circuits, bit-width independent completion detection and process, voltage and temperature variation tolerance.                          

  20. The single chip microcomputer technique in an intelligent nuclear instrument

    International Nuclear Information System (INIS)

    Wang Tieliu; Sun Punan; Wang Ying

    1995-01-01

    The authors present that how to acquire and process the output signals from the nuclear detector adopting single chip microcomputer technique, including working principles and the designing method of the computer's software and hardware in the single chip microcomputer instrument

  1. Experiment list: SRX180159 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available sd || cell type=hemogenic endothelium || chip antibody=CEBPb || chip antibody vendor=santa cruz biotechnol...ogy http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/eachData/bw/SRX180159.bw http://

  2. Experiment list: SRX112178 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available line=OS25 ES cells || chip antibody=8WG16 (MMS-126R, Covance) || chip antibody manufacturer=Covance || chromatin=Fixed || beads...=Magnetic beads http://dbarchive.biosciencedbc.jp/kyushu-u/mm

  3. Experiment list: SRX319550 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available e embryonic stem cells || genotype/variation=expressing Flag-bio tagged Myc || chip beads=Dynabeads MyOne Streptavidin T1 || chip bea...ds vendor=Invitrogen http://dbarchive.biosciencedbc.jp/k

  4. Experiment list: SRX319556 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ype=mouse embryonic stem cells || genotype/variation=expressing Flag-bio tagged Dax1 || chip beads=Dynabeads... MyOne Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.bioscienc

  5. Experiment list: SRX112184 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available line=OS25 ES cells || chip antibody=CTD4H8 (MMS-128P, Covance) || chip antibody manufacturer=Covance || chromatin=Fixed || beads...=Sepharose beads http://dbarchive.biosciencedbc.jp/kyushu-u/m

  6. Experiment list: SRX319558 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available | cell type=mouse embryonic stem cells || genotype/variation=expressing control BirA || chip beads=Dynabeads... MyOne Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.bioscienc

  7. Experiment list: SRX319553 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available se embryonic stem cells || genotype/variation=expressing Flag-bio tagged Tip60 || chip beads=Dynabeads MyOne... Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.biosciencedbc.j

  8. Experiment list: SRX319557 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available se embryonic stem cells || genotype/variation=expressing Flag-bio tagged Nanog || chip beads=Dynabeads MyOne... Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.biosciencedbc.j

  9. Experiment list: SRX319555 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ype=mouse embryonic stem cells || genotype/variation=expressing Flag-bio tagged Dax1 || chip beads=Dynabeads... MyOne Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.bioscienc

  10. Experiment list: SRX319551 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available use embryonic stem cells || genotype/variation=expressing Flag-bio tagged Dmap1 || chip beads=Dynabeads MyOn...e Streptavidin T1 || chip beads vendor=Invitrogen http://dbarchive.biosciencedbc.

  11. Experiment list: SRX185907 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Homo sapiens; ChIP-Seq source_name=MCF-7 breast adenocarcinoma cells, control, FOXM1 ChIP || cell_line=MCF-...7 || cell_type=ER-positive breast adenocarcinoma cells || treatment=DMSO || chip_

  12. Experiment list: SRX367330 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available nology) || sirna transfection=siBrd4 http://dbarchive.bi...=HEK293T cell || cell line=Human Embryonic Kidney 293 cells || chip antibody=CDK9 || chip antibody details=2316S (Cell Signaling Tech

  13. Experiment list: SRX367328 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available nology) || sirna transfection=siCTL http://dbarchive.bio...=HEK293T cell || cell line=Human Embryonic Kidney 293 cells || chip antibody=CDK9 || chip antibody details=2316S (Cell Signaling Tech

  14. Development of gold based solder candidates for flip chip assembly

    DEFF Research Database (Denmark)

    Chidambaram, Vivek; Hald, John; Hattel, Jesper Henri

    2009-01-01

    Flip chip technology is now rapidly replacing the traditional wire bonding interconnection technology in the first level packaging applications due to the miniaturization drive in the microelectronics industry. Flip chip assembly currently involves the use of high lead containing solders...

  15. Experiment list: SRX543048 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available nology http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/ea...CID.adh murine thymic lymphoma || development stage=DN3 || chip antibody=rabbit anti-Miz-1 || chip antibody vendor=Santa Cruz Biotech

  16. Lab-on a-Chip

    Science.gov (United States)

    1999-01-01

    Labs on chips are manufactured in many shapes and sizes and can be used for numerous applications, from medical tests to water quality monitoring to detecting the signatures of life on other planets. The eight holes on this chip are actually ports that can be filled with fluids or chemicals. Tiny valves control the chemical processes by mixing fluids that move in the tiny channels that look like lines, connecting the ports. Scientists at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama designed this chip to grow biological crystals on the International Space Station (ISS). Through this research, they discovered that this technology is ideally suited for solving the challenges of the Vision for Space Exploration. For example, thousands of chips the size of dimes could be loaded on a Martian rover looking for biosignatures of past or present life. Other types of chips could be placed in handheld devices used to monitor microbes in water or to quickly conduct medical tests on astronauts. The portable, handheld Lab-on-a Chip Application Development Portable Test System (LOCAD-PTS) made its debut flight aboard Discovery during the STS-116 mission launched December 9, 2006. The system allowed crew members to monitor their environment for problematic contaminants such as yeast, mold, and even E.coli, and salmonella. Once LOCAD-PTS reached the ISS, the Marshall team continued to manage the experiment, monitoring the study from a console in the Payload Operations Center at MSFC. The results of these studies will help NASA researchers refine the technology for future Moon and Mars missions. (NASA/MSFC/D.Stoffer)

  17. Biostability of an implantable glucose sensor chip

    Science.gov (United States)

    Fröhlich, M.; Birkholz, M.; Ehwald, K. E.; Kulse, P.; Fursenko, O.; Katzer, J.

    2012-12-01

    Surface materials of an implantable microelectronic chip intended for medical applications were evaluated with respect to their long-term stability in bio-environments. The sensor chip shall apply in a glucose monitor by operating as a microviscosimeter according to the principle of affinity viscosimetry. A monolithic integration of a microelectromechanical system (MEMS) into the sensor chip was successfully performed in a combined 0.25 μm CMOS/BiCMOS technology. In order to study material durability and biostability of the surfaces, sensor chips were exposed to various in vitro and in vivo tests. Corrosional damage of SiON, SiO2 and TiN surfaces was investigated by optical microscopy, ellipsometry and AFM. The results served for optimizing the Back-end-of-Line (BEoL) stack, from which the MEMS was prepared. Corrosion of metal lines could significantly be reduced by improving the topmost passivation layer. The experiments revealed no visible damage of the actuator or other functionally important MEMS elements. Sensor chips were also exposed to human body fluid for three month by implantation into the abdomen of a volunteer. Only small effects were observed for layer thickness and Ra roughness after explantation. In particular, TiN as used for the actuator beam showed no degradation by biocorrosion. The highest degradation rate of about 50 nm per month was revealed for the SiON passivation layer. These results suggest that the sensor chip may safely operate in subcutaneous tissue for a period of several months.

  18. Biostability of an implantable glucose sensor chip

    International Nuclear Information System (INIS)

    Fröhlich, M; Ehwald, K E; Kulse, P; Fursenko, O; Katzer, J; Birkholz, M

    2012-01-01

    Surface materials of an implantable microelectronic chip intended for medical applications were evaluated with respect to their long-term stability in bio-environments. The sensor chip shall apply in a glucose monitor by operating as a microviscosimeter according to the principle of affinity viscosimetry. A monolithic integration of a microelectromechanical system (MEMS) into the sensor chip was successfully performed in a combined 0.25 μm CMOS/BiCMOS technology. In order to study material durability and biostability of the surfaces, sensor chips were exposed to various in vitro and in vivo tests. Corrosional damage of SiON, SiO 2 and TiN surfaces was investigated by optical microscopy, ellipsometry and AFM. The results served for optimizing the Back-end-of-Line (BEoL) stack, from which the MEMS was prepared. Corrosion of metal lines could significantly be reduced by improving the topmost passivation layer. The experiments revealed no visible damage of the actuator or other functionally important MEMS elements. Sensor chips were also exposed to human body fluid for three month by implantation into the abdomen of a volunteer. Only small effects were observed for layer thickness and R a roughness after explantation. In particular, TiN as used for the actuator beam showed no degradation by biocorrosion. The highest degradation rate of about 50 nm per month was revealed for the SiON passivation layer. These results suggest that the sensor chip may safely operate in subcutaneous tissue for a period of several months.

  19. Modified precision-husky progrind H-3045 for chipping biomass

    Science.gov (United States)

    Dana Mitchell; Fernando Seixas; John. Klepac

    2008-01-01

    A specific size of whole tree chip was needed to co-mill wood chips with coal. The specifications are stringent because chips must be mixed with coal, as opposed to a co-firing process. In co-firing, two raw products are conveyed separately to a boiler. In co-milling, such as at Alabama Power's Plant Gadsden, the chip and coal mix must pass through a series of...

  20. Silicon microstrip detectors with SVX chip readout

    International Nuclear Information System (INIS)

    Brueckner, W.; Dropmann, F.; Godbersen, M.; Konorov, I.; Koenigsmann, K.; Masciocchi, S.; Newsom, C.; Paul, S.; Povh, B.; Russ, J.S.; Timm, S.; Vorwalter, K.; Werding, R.

    1995-01-01

    A new silicon strip detector has been designed for the fixed target experiment WA89 at CERN. The system of about 30 000 channels is equipped with SVX chips and read out via a double buffer into a FASTBUS memory. The detector provides a fast readout by offering zero-suppressed data extraction on the chip. The silicon counters are the largest detectors built on a monocrystal so far in order to achieve good transversal acceptance. Construction and performance during the 1993 data taking run are discussed. ((orig.))

  1. MCMII and the TriP chip

    Energy Technology Data Exchange (ETDEWEB)

    Juan Estrada et al.

    2003-12-19

    We describe the development of the electronics that will be used to read out the Fiber Tracker and Preshower detectors in Run IIb. This electronics is needed for operation at 132ns bunch crossing, and may provide a measurement of the z coordinate of the Fiber Tracker hits when operating at 396ns bunch crossing. Specifically, we describe the design and preliminary tests of the Trip chip, MCM IIa, MCM IIb and MCM IIc. This document also serves as a user manual for the Trip chip and the MCM.

  2. A proposed holistic approach to on-chip, off-chip, test, and package interconnections

    Science.gov (United States)

    Bartelink, Dirk J.

    1998-11-01

    The term interconnection has traditionally implied a `robust' connection from a transistor or a group of transistors in an IC to the outside world, usually a PC board. Optimum system utilization is done from outside the IC. As an alternative, this paper addresses `unimpeded' transistor-to-transistor interconnection aimed at reaching the high circuit densities and computational capabilities of neighboring IC's. In this view, interconnections are not made to some human-centric place outside the IC world requiring robustness—except for system input and output connections. This unimpeded interconnect style is currently available only through intra-chip signal traces in `system-on-a-chip' implementations, as exemplified by embedded DRAMs. Because the traditional off-chip penalty in performance and wiring density is so large, a merging of complex process technologies is the only option today. It is suggested that, for system integration to move forward, the traditional robustness requirement inherited from conventional packaging interconnect and IC manufacturing test must be discarded. Traditional system assembly from vendor parts requires robustness under shipping, inspection and assembly. The trend toward systems on a chip signifies willingness by semiconductor companies to design and fabricate whole systems in house, so that `in-house' chip-to-chip assembly is not beyond reach. In this scenario, bare chips never leave the controlled environment of the IC fabricator while the two major contributors to off-chip signal penalty, ESD protection and the need to source a 50-ohm test head, are avoided. With in-house assembly, ESD protection can be eliminated with the precautions already familiar in plasma etching. Test interconnection impacts the fundamentals of IC manufacturing, particularly with clock speeds approaching 1GHz, and cannot be an afterthought. It should be an integral part of the chip-to-chip interconnection bandwidth optimization, because—as we must

  3. A Neuron- and a Synapse Chip for Artificial Neural Networks

    DEFF Research Database (Denmark)

    Lansner, John; Lehmann, Torsten

    1992-01-01

    A cascadable, analog, CMOS chip set has been developed for hardware implementations of artificial neural networks (ANN's):I) a neuron chip containing an array of neurons with hyperbolic tangent activation functions and adjustable gains, and II) a synapse chip (or a matrix-vector multiplier) where...

  4. Developing an Integrated Design Strategy for Chip Layout Optimization

    NARCIS (Netherlands)

    Wits, Wessel Willems; Jauregui Becker, Juan Manuel; van Vliet, Frank Edward; te Riele, G.J.

    2011-01-01

    This paper presents an integrated design strategy for chip layout optimization. The strategy couples both electric and thermal aspects during the conceptual design phase to improve chip performances; thermal management being one of the major topics. The layout of the chip circuitry is optimized

  5. Wood chip delivery and research project at Mikkeli region

    International Nuclear Information System (INIS)

    Saksa, T.; Auvinen, P.

    1995-01-01

    In 1994, a large-scale energywood production chain was started as a co-operation project by the Mikkeli city forest office and local forestry societies. Over 60 000 m 3 (about 46 000 MWh of energy) of forest processed chips were delivered to Pursiala heat and power plant in Mikkeli. About 60 % of these chips was whole tree chips from improvement cuttings of young forest stands and the rest was logging waste chips from regeneration cutting areas. The average total delivery costs of forest processed chips after reduction of energywood and other subsidies were approximately 51 FIM/m 3 (68 FIM/MWh) for the whole tree chips and 40 FIM/m 3 (53 FIM/MWh) for logging waste chips. The delivery costs of wood chips could compete with those of fuel peat only in the most favourable cases. The resources of forest processed chips were studied on the basis of forestry plans. According to the study, there is enough raw material for permanent, large-scale delivery of forest processed chips (up to 250 000 m 3 /a) in the forests located at a distance of under 40 road kilometers from the Pursiala heat and power plant. The following project stages will involve further development of the wood chip delivery chain logistics, as well as improvement of logging and chipping equipment and methods in energywood and logging waste production. Also the effects of wood energy production on the economy and environment of the whole Mikkeli region will be studied. (author)

  6. Experiment list: SRX485203 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346544: Rhino ChIP from control germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq ...source_name=Rhino ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult ||... Sex=female || tissue=ovary || germline knock-down=control || chip antibody=custo

  7. Experiment list: SRX485202 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346543: Rhino ChIP from control germline knock-down ovaries, replicate 1; Drosophila melanogaster; ChIP-Seq ...source_name=Rhino ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult ||... Sex=female || tissue=ovary || germline knock-down=control || chip antibody=custo

  8. Experiment list: SRX485205 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 46546: Rhino ChIP from deadlock germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name=R...hino ChIP from deadlock germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female ...|| tissue=ovary || germline knock-down=deadlock || chip antibody=custom-made rabb

  9. Experiment list: SRX485212 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346553: Cutoff ChIP from cutoff germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name=C...utoff ChIP from cutoff germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female |...| tissue=ovary || germline knock-down=cutoff || chip antibody=custom-made rabbit

  10. Experiment list: SRX485210 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 6551: Deadlock ChIP from deadlock germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name...=Deadlock ChIP from deadlock germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=fe...male || tissue=ovary || germline knock-down=deadlock || chip antibody=custom-made

  11. Experiment list: SRX485220 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 53 GSM1346561: RNA Polymerase II ChIP from rhino germline knock-down ovaries; Drosophila melanogaster; ChIP-...Seq source_name=RNA Polymerase II ChIP from rhino germline knock-down ovaries || developmental stage=4-6 day...s old adult || Sex=female || tissue=ovary || germline knock-down=rhino || chip an

  12. Experiment list: SRX485211 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346552: Cutoff ChIP from control germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name=...Cutoff ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female... || tissue=ovary || germline knock-down=control || chip antibody=custom-made rabb

  13. Experiment list: SRX485204 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346545: Rhino ChIP from rhino germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name=Rhi...no ChIP from rhino germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female || ti...ssue=ovary || germline knock-down=rhino || chip antibody=custom-made rabbit polyc

  14. Experiment list: SRX485208 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346549: Rhino ChIP from piwi germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq sou...rce_name=Rhino ChIP from piwi germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=f...emale || tissue=ovary || germline knock-down=piwi || chip antibody=custom-made ra

  15. Experiment list: SRX485206 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346547: Rhino ChIP from cutoff germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_name=Rh...ino ChIP from cutoff germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female || ...tissue=ovary || germline knock-down=cutoff || chip antibody=custom-made rabbit po

  16. Experiment list: SRX485209 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 346550: Deadlock ChIP from control germline knock-down ovaries; Drosophila melanogaster; ChIP-Seq source_nam...e=Deadlock ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=fe...male || tissue=ovary || germline knock-down=control || chip antibody=custom-made

  17. Energy Model of Networks-on-Chip and a Bus

    NARCIS (Netherlands)

    Wolkotte, P.T.; Smit, Gerardus Johannes Maria; Kavaldjiev, N.K.; Becker, Jens E.; Becker, Jürgen; Nurmi, J.; Takala, J.; Hamalainen, T.D.

    2005-01-01

    A Network-on-Chip (NoC) is an energy-efficient onchip communication architecture for Multi-Processor Systemon-Chip (MPSoC) architectures. In earlier papers we proposed two Network-on-Chip architectures based on packet-switching and circuit-switching. In this paper we derive an energy model for both

  18. Experiment list: SRX110782 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available e3 (ab6002, abcam), Pol II (CTD4H8, Millipore) || chip antibody 1 manufacturer=ab...cam || chip antibody 2=Pol II (CTD4H8, Millipore) || chip antibody 2 manufacturer=Millipore http://dbarchive

  19. Simulating the Effect of Modulated Tool-Path Chip Breaking On Surface Texture and Chip Length

    Energy Technology Data Exchange (ETDEWEB)

    Smith, K.S.; McFarland, J.T.; Tursky, D. A.; Assaid, T. S.; Barkman, W. E.; Babelay, Jr., E. F.

    2010-04-30

    One method for creating broken chips in turning processes involves oscillating the cutting tool in the feed direction utilizing the CNC machine axes. The University of North Carolina at Charlotte and the Y-12 National Security Complex have developed and are refining a method to reliably control surface finish and chip length based on a particular machine's dynamic performance. Using computer simulations it is possible to combine the motion of the machine axes with the geometry of the cutting tool to predict the surface characteristics and map the surface texture for a wide range of oscillation parameters. These data allow the selection of oscillation parameters to simultaneously ensure broken chips and acceptable surface characteristics. This paper describes the machine dynamic testing and characterization activities as well as the computational method used for evaluating and predicting chip length and surface texture.

  20. On-chip electrochromic micro display for a disposable bio-sensor chip

    Science.gov (United States)

    Zhu, Yanjun; Tsukamoto, Takashiro; Tanaka, Shuji

    2017-12-01

    This paper reports an on-chip electrochromic micro display made of polyaniline (PANi) which can be easily made on a CMOS chip. Micro-patterned PANi thin films were selectively deposited on pre-patterned microelectrodes by using electrodeposition. The optimum conditions for deposition and electrochromism were investigated. An 8-pixel on-chip micro display was made on a Si chip. The color of each PANi film could be independently but simultaneously controlled, which means any 1-byte digital data could be displayed on the display. The PANi display had a response time as fast as about 100 ms, which means the transfer data rate was as fast as 80 bits per second.

  1. "Hook"-calibration of GeneChip-microarrays: Chip characteristics and expression measures

    Directory of Open Access Journals (Sweden)

    Krohn Knut

    2008-08-01

    Full Text Available Abstract Background Microarray experiments rely on several critical steps that may introduce biases and uncertainty in downstream analyses. These steps include mRNA sample extraction, amplification and labelling, hybridization, and scanning causing chip-specific systematic variations on the raw intensity level. Also the chosen array-type and the up-to-dateness of the genomic information probed on the chip affect the quality of the expression measures. In the accompanying publication we presented theory and algorithm of the so-called hook method which aims at correcting expression data for systematic biases using a series of new chip characteristics. Results In this publication we summarize the essential chip characteristics provided by this method, analyze special benchmark experiments to estimate transcript related expression measures and illustrate the potency of the method to detect and to quantify the quality of a particular hybridization. It is shown that our single-chip approach provides expression measures responding linearly on changes of the transcript concentration over three orders of magnitude. In addition, the method calculates a detection call judging the relation between the signal and the detection limit of the particular measurement. The performance of the method in the context of different chip generations and probe set assignments is illustrated. The hook method characterizes the RNA-quality in terms of the 3'/5'-amplification bias and the sample-specific calling rate. We show that the proper judgement of these effects requires the disentanglement of non-specific and specific hybridization which, otherwise, can lead to misinterpretations of expression changes. The consequences of modifying probe/target interactions by either changing the labelling protocol or by substituting RNA by DNA targets are demonstrated. Conclusion The single-chip based hook-method provides accurate expression estimates and chip-summary characteristics

  2. A Single-Chip CMOS Pulse Oximeter with On-Chip Lock-In Detection

    OpenAIRE

    Diwei He; Stephen P. Morgan; Dimitrios Trachanis; Jan van Hese; Dimitris Drogoudis; Franco Fummi; Francesco Stefanni; Valerio Guarnieri; Barrie R. Hayes-Gill

    2015-01-01

    Pulse oximetry is a noninvasive and continuous method for monitoring the blood oxygen saturation level. This paper presents the design and testing of a single-chip pulse oximeter fabricated in a 0.35 ?m CMOS process. The chip includes photodiode, transimpedance amplifier, analogue band-pass filters, analogue-to-digital converters, digital signal processor and LED timing control. The experimentally measured AC and DC characteristics of individual circuits including the DC output voltage of the...

  3. Results of irriadiating the APV5 chip

    CERN Document Server

    Raymond, M

    1996-01-01

    An APV5 chip has been irradiated in steps up to 16 Mrads using a Co-60 source in order to confirm the radiation hardness expected from individual transistor and sub-circuit measurements. Full functionality is preserved after irradiation and measurements of the amplifier pulse shape and noise are presented.

  4. Chip based electroanalytical systems for cell analysis

    DEFF Research Database (Denmark)

    Spegel, C.; Heiskanen, A.; Skjolding, L.H.D.

    2008-01-01

    ' measurements of processes related to living cells, i.e., systems without lysing the cells. The focus is on chip based amperometric and impedimetric cell analysis systems where measurements utilizing solely carbon fiber microelectrodes (CFME) and other nonchip electrode formats, such as CFME for exocytosis...

  5. Increasing security in inter-chip communication

    Science.gov (United States)

    Edwards, Nathan J; Hamlet, Jason; Bauer, Todd; Helinski, Ryan

    2014-10-28

    An apparatus for increasing security in inter-chip communication includes a sending control module, a communication bus, and a receiving control module. The communication bus is coupled between the sending control module and the receiving control module. The sending control module operates to send data on the communication bus, disable the communication bus when threats are detected, or both.

  6. Cytostretch, an Organ-on-Chip Platform

    NARCIS (Netherlands)

    Gaio, N.; van Meer, B.; Quiros Solano, W.F.; Bergers, L.; van de Stolpe, A; Mummery, CL; Sarro, P.M.; Dekker, R.

    2016-01-01

    Organ-on-Chips (OOCs) are micro-fabricated devices which are used to culture cells in order to mimic functional units of human organs. The devices are designed to simulate the physiological environment of tissues in vivo. Cells in some types of OOCs can be stimulated in situ by electrical and/or

  7. Microprocessors: From basic chips to complete systems

    International Nuclear Information System (INIS)

    Dobinson, R.W.

    1985-01-01

    These lectures aim to present and explain in general terms some of the characteristics of microprocessor chips and associated components. They show how systems are synthesized from the basic integrated circuit building blocks which are currently available; processor, memory, input-output (I/0) devices, etc. (orig./HSI)

  8. Potential roughness near lithographically fabricated atom chips

    DEFF Research Database (Denmark)

    Krüger, Peter; Andersson, L. M.; Wildermuth, Stefan

    2007-01-01

    Potential roughness has been reported to severely impair experiments in magnetic microtraps. We show that these obstacles can be overcome as we measure disorder potentials that are reduced by two orders of magnitude near lithographically patterned high-quality gold layers on semiconductor atom chip...

  9. Smart Chips for Smart Surroundings -- 4S

    NARCIS (Netherlands)

    Schuler, Eberhard; König, Ralf; Becker, Jürgen; Rauwerda, G.K.; van de Burgwal, M.D.; Smit, Gerardus Johannes Maria; Cardoso, João M.P.; Hübner, Michael

    2011-01-01

    The overall mission of the 4S project (Smart Chips for Smart Surroundings) was to define and develop efficient flexible, reconfigurable core building blocks, including the supporting tools, for future Ambient System Devices. Reconfigurability offers the needed flexibility and adaptability, it

  10. On-chip mode division multiplexing technologies

    DEFF Research Database (Denmark)

    Ding, Yunhong; Frellsen, Louise Floor; Guan, Xiaowei

    2016-01-01

    Space division multiplexing (SDM) is currently widely investigated in order to provide enhanced capacity thanks to the utilization of space as a new degree of multiplexing freedom in both optical fiber communication and on-chip interconnects. Basic components allowing the processing of spatial...... photonic integrated circuit mode (de) multiplexer for few-mode fibers (FMFs)....

  11. What's A Pixel Particle Sensor Chip?

    CERN Multimedia

    2008-01-01

    ATLAS particle physics experiment aided with collaboration ON Semiconductor was recently honored by the European Council for Nuclear Research (CERN), with an Industrial Award recognizing the company's contribution in supplying complex "Pixel Particle Sensor" chips for use in CERN's ATLAS particle physics experiment.

  12. Microarrays (DNA Chips) for the Classroom Laboratory

    Science.gov (United States)

    Barnard, Betsy; Sussman, Michael; BonDurant, Sandra Splinter; Nienhuis, James; Krysan, Patrick

    2006-01-01

    We have developed and optimized the necessary laboratory materials to make DNA microarray technology accessible to all high school students at a fraction of both cost and data size. The primary component is a DNA chip/array that students "print" by hand and then analyze using research tools that have been adapted for classroom use. The…

  13. Drying characteristics of willow chips and stems

    NARCIS (Netherlands)

    Gigler, J.K.; Loon, van W.K.P.; Seres, I.; Meerdink, G.; Coumans, W.J.

    2000-01-01

    In supply chains of willow (Salix viminalis) biomass to energy plants, drying is advisable in order to enable safe long-term storage, increase boiler efficiency and reduce gaseous emissions. To gain insight into the drying process, drying characteristics of willow chips and stems were investigated

  14. Atom chips: mesoscopic physics with cold atoms

    International Nuclear Information System (INIS)

    Krueger, P.; Wildermuth, S.; Hofferberth, S.; Haller, E.; GAllego Garcia, D.; Schmiedmayer, J.

    2005-01-01

    Full text: Cold neutral atoms can be controlled and manipulated in microscopic potentials near surfaces of atom chips. These integrated micro-devices combine the known techniques of atom optics with the capabilities of well established micro- and nanofabrication technology. In analogy to electronic microchips and integrated fiber optics, the concept of atom chips is suitable to explore the domain of mesoscopic physics with matter waves. We use current and charge carrying structures to form complex potentials with high spatial resolution only microns from the surface. In particular, atoms can be confined to an essentially one-dimensional motion. In this talk, we will give an overview of our experiments studying the manipulation of both thermal atoms and BECs on atom chips. First experiments in the quasi one-dimensional regime will be presented. These experiments profit from strongly reduced residual disorder potentials caused by imperfections of the chip fabrication with respect to previously published experiments. This is due to our purely lithographic fabrication technique that proves to be advantageous over electroplating. We have used one dimensionally confined BECs as an ultra-sensitive probe to characterize these potentials. These smooth potentials allow us to explore various aspects of the physics of degenerate quantum gases in low dimensions. (author)

  15. On-chip antenna: Practical design and characterization considerations

    KAUST Repository

    Shamim, Atif; Salama, Khaled N.; Sedky, S.; Soliman, E. A.

    2012-01-01

    This paper highlights the challenges of an emergent field, namely, on-chip antenna design. Consistent with the RF System-on-Chip (SoC) concept, co-design strategy for circuits and on-chip antennas is described. A number of design and layout issues, arising from the highly integrated nature of this kind of systems, are discussed. The characterization difficulties related to on-chip antennas radiation properties are also highlighted. Finally, a novel on-wafer test fixture is proposed to measure the gain and radiation pattern of the on-chip antennas in the anechoic chamber.

  16. On-chip antenna: Practical design and characterization considerations

    KAUST Repository

    Shamim, Atif

    2012-07-28

    This paper highlights the challenges of an emergent field, namely, on-chip antenna design. Consistent with the RF System-on-Chip (SoC) concept, co-design strategy for circuits and on-chip antennas is described. A number of design and layout issues, arising from the highly integrated nature of this kind of systems, are discussed. The characterization difficulties related to on-chip antennas radiation properties are also highlighted. Finally, a novel on-wafer test fixture is proposed to measure the gain and radiation pattern of the on-chip antennas in the anechoic chamber.

  17. ENERGY STAR Certified Commercial Hot Food Holding Cabinet

    Data.gov (United States)

    U.S. Environmental Protection Agency — Certified models meet all ENERGY STAR requirements as listed in the Version 2.0 ENERGY STAR Program Requirements for Commercial Hot Food Holding Cabinets that are...

  18. 29 CFR 452.40 - Prior office holding.

    Science.gov (United States)

    2010-07-01

    ... DISCLOSURE ACT OF 1959 Candidacy for Office; Reasonable Qualifications § 452.40 Prior office holding. A.... 26 26 Wirtz v. Hotel, Motel and Club Employees Union, Local 6, 391 U.S. 492 at 504. The Court stated...

  19. FUNCTIONING OF AGRICULTURAL HOLDINGS IN UKRAINE: STRONG AND WEAK SIDES

    Directory of Open Access Journals (Sweden)

    Postgraduate, assistant Sergii Ivanovich TODORIUK

    2014-06-01

    Full Text Available One of the organizational forms of the agricultural management which is gaining popularity in the world is agricultural holdings. The essence of agricultural holdings is considered in the article. Also the peculiarities of their functioning in Ukraine and determination of the strengths and weaknesses of their activities is defined, as well as perspectives of their further functioning. Agrarian holding, as a relatively new organizational legal form of managing in Ukraine has its advantages and disadvantages. As the experience shows the advantages of agrarian holdings over the subjects of management are revealed mainly in the economic sphere. While their disadvantages over the subjects of management are revealed in social and ecological spheres. This is a negative moment considering the implementation in Ukraine of the concept of the sustainable development, which means the combination of these main components (economic component, environmental component, social component.

  20. Effect of holding office on the behavior of politicians

    Science.gov (United States)

    Enemark, Daniel; Gibson, Clark C.; McCubbins, Mathew D.; Seim, Brigitte

    2016-01-01

    Reciprocity is central to our understanding of politics. Most political exchanges—whether they involve legislative vote trading, interbranch bargaining, constituent service, or even the corrupt exchange of public resources for private wealth—require reciprocity. But how does reciprocity arise? Do government officials learn reciprocity while holding office, or do recruitment and selection practices favor those who already adhere to a norm of reciprocity? We recruit Zambian politicians who narrowly won or lost a previous election to play behavioral games that provide a measure of reciprocity. This combination of regression discontinuity and experimental designs allows us to estimate the effect of holding office on behavior. We find that holding office increases adherence to the norm of reciprocity. This study identifies causal effects of holding office on politicians’ behavior. PMID:27856736

  1. Rock Equity Holdings, LLC - Clean Water Act Public Notice

    Science.gov (United States)

    The EPA is providing notice of an Administrative Penalty Assessment in the form of an Expedited Storm Water Settlement Agreement against Rock Equity Holdings, LLC, for alleged violations at The Cove at Kettlestone/98th Street Reconstruction located at 3015

  2. Patent holdings of US biotherapeutic companies in major markets.

    Science.gov (United States)

    Sebastian, Teena E; Yerram, Chandra Bindu; Saberwal, Gayatri

    2009-05-01

    In previous studies we examined the (United States, US) patent holdings of 109 largely North American biotech companies developing therapeutics that, in particular, have an interest in discovery stage science. There appears little correlation between the number of patents and the number of products of individual companies. Here we quantified and compared the 103 US-headquartered companies' patent holdings in Australia, Canada, Europe, Japan and the US. The companies demonstrate variable and surprising patterns of patent holdings across these countries or regions. For most companies, patent holdings are not in proportion to the importance of the country as a biotech or pharma market. These results have implications for the patenting strategies of small biotech companies involved in drug discovery.

  3. Effect of holding office on the behavior of politicians.

    Science.gov (United States)

    Enemark, Daniel; Gibson, Clark C; McCubbins, Mathew D; Seim, Brigitte

    2016-11-29

    Reciprocity is central to our understanding of politics. Most political exchanges-whether they involve legislative vote trading, interbranch bargaining, constituent service, or even the corrupt exchange of public resources for private wealth-require reciprocity. But how does reciprocity arise? Do government officials learn reciprocity while holding office, or do recruitment and selection practices favor those who already adhere to a norm of reciprocity? We recruit Zambian politicians who narrowly won or lost a previous election to play behavioral games that provide a measure of reciprocity. This combination of regression discontinuity and experimental designs allows us to estimate the effect of holding office on behavior. We find that holding office increases adherence to the norm of reciprocity. This study identifies causal effects of holding office on politicians' behavior.

  4. INNOVATION DEVELOPMENT MANAGEMENT IN VERTICALLY INTEGRATED HOLDING COMPANY

    Directory of Open Access Journals (Sweden)

    Natalya T. Uspenskaja

    2015-01-01

    Full Text Available The trend towards production consolidation and integration processes taking place both in the Russian and global economies leads to development of business associations, with a holding company being the most common form inRussiaand around the globe. The evidence in favor of the formation of holding companies is that they can benefit from the scale (bulk purchasing, centralized stuff training; in the global capital and exports markets they can be more effective than smaller businesses and, if non-profitable, a loss-making structure is easier to liquidate than the entire company; holding companies and associations can be an effective defender from political interference. As the importance of the well-functioning and harmonized procedure for the companies’ integration will increase (especially in the context of Russian business, where specific features of many areas of the production system imply the use of holding oligopolies as the most effective form of market structures, there is a need in their more profound study and, in particular, in the analysis of the most important technologies of the general integration procedure. The article outlines the relevance of innovative development management of vertically integrated holding systems, lists principles of innovative activity management and considers the features of innovation management of a vertically integrated holding company. The objective of the research is to study theoretical and practical aspects of innovative development management in vertically integrated holding systems. The object of research is management structures in innovative holding companies. While working on the article, the following methods of economic research were used: abstract and logical method, empirical method, method of expert evaluations, as well as methods of structural and functional and statistical analysis. 

  5. Impact of breath holding on cardiovascular respiratory and cerebrovascular health.

    Science.gov (United States)

    Dujic, Zeljko; Breskovic, Toni

    2012-06-01

    Human underwater breath-hold diving is a fascinating example of applied environmental physiology. In combination with swimming, it is one of the most popular forms of summer outdoor physical activities. It is performed by a variety of individuals ranging from elite breath-hold divers, underwater hockey and rugby players, synchronized and sprint swimmers, spear fishermen, sponge harvesters and up to recreational swimmers. Very few data currently exist concerning the influence of regular breath holding on possible health risks such as cerebrovascular, cardiovascular and respiratory diseases. A literature search of the PubMed electronic search engine using keywords 'breath-hold diving' and 'apnoea diving' was performed. This review focuses on recent advances in knowledge regarding possibly harmful physiological changes and/or potential health risks associated with breath-hold diving. Available evidence indicates that deep breath-hold dives can be very dangerous and can cause serious acute health problems such a collapse of the lungs, barotrauma at descent and ascent, pulmonary oedema and alveolar haemorrhage, cardiac arrest, blackouts, nitrogen narcosis, decompression sickness and death. Moreover, even shallow apnoea dives, which are far more frequent, can present a significant health risk. The state of affairs is disturbing as athletes, as well as recreational individuals, practice voluntary apnoea on a regular basis. Long-term health risks of frequent maximal breath holds are at present unknown, but should be addressed in future research. Clearly, further studies are needed to better understand the mechanisms related to the possible development or worsening of different clinical disorders in recreational or competitive breath holding and to determine the potential changes in training/competition regimens in order to prevent these adverse events.

  6. Cembrit Holding A/S: At the crossroads

    DEFF Research Database (Denmark)

    Turcan, Romeo V.

    2017-01-01

    This is a Teaching Note (product number: 8B17M008) for the "Cembrit Holding A/S: At the crossroads" case (product number - 9B17M008) published by Ivey Publishing.......This is a Teaching Note (product number: 8B17M008) for the "Cembrit Holding A/S: At the crossroads" case (product number - 9B17M008) published by Ivey Publishing....

  7. The performance and risk of Hartalega Holdings Berhad

    OpenAIRE

    Wong, Kah Wai

    2017-01-01

    The purpose of the study is to investigate the overall performance of Hartalega Holdings Berhad and specific risk factors and macroeconomic factors are influence on profitability performance. The data obtained from annual report of Hartalega Holdings Berhad during the years 2011 to 2015. The measurement of financial ratios and regression analysis used to see the overall performance and risk of the company. The study found that performance of the company is unfavourable due to the decreasing m...

  8. Estimating animal movement contacts between holdings of different production types.

    Science.gov (United States)

    Lindström, Tom; Sisson, Scott A; Lewerin, Susanna Stenberg; Wennergren, Uno

    2010-06-01

    Animal movement poses a great risk for disease transmission between holdings. Heterogeneous contact patterns are known to influence the dynamics of disease transmission and should be included in modeling. Using pig movement data from Sweden as an example, we present a method for quantification of between holding contact probabilities based on different production types. The data contained seven production types: Sow pool center, Sow pool satellite, Farrow-to-finish, Nucleus herd, Piglet producer, Multiplying herd and Fattening herd. The method also estimates how much different production types will determine the contact pattern of holdings that have more than one type. The method is based on Bayesian analysis and uses data from central databases of animal movement. Holdings with different production types are estimated to vary in the frequency of contacts as well as in what type of holding they have contact with, and the direction of the contacts. Movements from Multiplying herds to Sow pool centers, Nucleus herds to other Nucleus herds, Sow pool centers to Sow pool satellites, Sow pool satellites to Sow pool centers and Nucleus herds to Multiplying herds were estimated to be most common relative to the abundance of the production types. We show with a simulation study that these contact patterns may also be expected to result in substantial differences in disease transmission via animal movements, depending on the index holding. Simulating transmission for a 1 year period showed that the median number of infected holdings was 1 (i.e. only the index holding infected) if the infection started at a Fattening herd and 2161 if the infection started on a Nucleus herd. We conclude that it is valuable to include production types in models of disease transmission and the method presented in this paper may be used for such models when appropriate data is available. We also argue that keeping records of production types is of great value since it may be helpful in risk

  9. The carbon holdings of northern Ecuador's mangrove forests

    OpenAIRE

    Hamilton, Stuart E.; Lovette, John; Borbor, Mercy; Millones, Marco

    2016-01-01

    Within a GIS environment, we combine field measures of mangrove diameter, mangrove species distribution, and mangrove density with remotely sensed measures of mangrove location and mangrove canopy cover to estimate the mangrove carbon holdings of northern Ecuador. We find that the four northern estuaries of Ecuador contain approximately 7,742,999 t (plus or minus 15.47 percent) of standing carbon. Of particular high carbon holdings are the Rhizophora mangle dominated mangrove stands found in-...

  10. Electrochemical reduction of oxygen on small platinum particles supported on carbon in concentrated phosphoric acid. 2. Effects of teflon content in the catalyst layer and baking temperature of the electrode

    Energy Technology Data Exchange (ETDEWEB)

    Maoka, T.

    1988-03-01

    A relation between hydrophobicity (or wettability) of a porous gas diffusion electrode for use in a phosphoric acid fuel cell and its cathode performance (activity toward electrochemical oxygen reduction) was examined. The hydrophobicity of the gas diffusion electrode was regulated by changing either the amount of Teflon (PTFE) content in the catalyst layer or baking temperature of the electrode. The Tafel slope or electrochemical oxygen reduction became twice as high as that of the ordinary electrode when the wettability of electrode toward phosphoric acid was high. This fact supports a flooded agglomerate model as the mode of this type of porous gas diffusion electrode.

  11. Leverage, Asymmetric Information, Firm Value, and Cash Holdings in Indonesia

    Directory of Open Access Journals (Sweden)

    Aldea Mita Cheryta

    2018-02-01

    Full Text Available This research aimed to analyze the effect of leverage and asymmetry information on the firm value through cash holding as mediation variable. The populations of this research were all the firms which listed on the Indonesia Stock Exchange since 2012 – 2015. A sample of this research was saturated sample and census, consisted 56 firms related the population criteria.  This research used secondary data from the firm financial report through path analysis method. This research showed that leverage had a negative effect on the cash holdings, asymmetry information had a negative effect on the firm value through cash holding, and cash holding had a negative effect on the firm value.  With leverage and effect on cash, holding cannot affect the firm value, due to investor risk-averse, investor risk seeker, and neutral investor has their own point of view in assessing the company. Cash holdings can lead to asymmetric information that can lead to agency conflict that can affect a company's performance, so that indirectly, with the existence of asymmetry information had an effect on the declining the firm value. 

  12. On-chip concentration of bacteria using a 3D dielectrophoretic chip and subsequent laser-based DNA extraction in the same chip

    International Nuclear Information System (INIS)

    Cho, Yoon-Kyoung; Kim, Tae-hyeong; Lee, Jeong-Gun

    2010-01-01

    We report the on-chip concentration of bacteria using a dielectrophoretic (DEP) chip with 3D electrodes and subsequent laser-based DNA extraction in the same chip. The DEP chip has a set of interdigitated Au post electrodes with 50 µm height to generate a network of non-uniform electric fields for the efficient trapping by DEP. The metal post array was fabricated by photolithography and subsequent Ni and Au electroplating. Three model bacteria samples (Escherichia coli, Staphylococcus epidermidis, Streptococcus mutans) were tested and over 80-fold concentrations were achieved within 2 min. Subsequently, on-chip DNA extraction from the concentrated bacteria in the 3D DEP chip was performed by laser irradiation using the laser-irradiated magnetic bead system (LIMBS) in the same chip. The extracted DNA was analyzed with silicon chip-based real-time polymerase chain reaction (PCR). The total process of on-chip bacteria concentration and the subsequent DNA extraction can be completed within 10 min including the manual operation time.

  13. On-chip particle trapping and manipulation

    Science.gov (United States)

    Leake, Kaelyn Danielle

    The ability to control and manipulate the world around us is human nature. Humans and our ancestors have used tools for millions of years. Only in recent years have we been able to control objects at such small levels. In order to understand the world around us it is frequently necessary to interact with the biological world. Optical trapping and manipulation offer a non-invasive way to move, sort and interact with particles and cells to see how they react to the world around them. Optical tweezers are ideal in their abilities but they require large, non-portable, and expensive setups limiting how and where we can use them. A cheap portable platform is required in order to have optical manipulation reach its full potential. On-chip technology offers a great solution to this challenge. We focused on the Liquid-Core Anti-Resonant Reflecting Optical Waveguide (liquid-core ARROW) for our work. The ARROW is an ideal platform, which has anti-resonant layers which allow light to be guided in liquids, allowing for particles to easily be manipulated. It is manufactured using standard silicon manufacturing techniques making it easy to produce. The planner design makes it easy to integrate with other technologies. Initially I worked to improve the ARROW chip by reducing the intersection losses and by reducing the fluorescence and background on the ARROW chip. The ARROW chip has already been used to trap and push particles along its channel but here I introduce several new methods of particle trapping and manipulation on the ARROW chip. Traditional two beam traps use two counter propagating beams. A trapping scheme that uses two orthogonal beams which counter to first instinct allow for trapping at their intersection is introduced. This scheme is thoroughly predicted and analyzed using realistic conditions. Simulations of this method were done using a program which looks at both the fluidics and optical sources to model complex situations. These simulations were also used to

  14. 12 CFR 225.81 - What is a financial holding company?

    Science.gov (United States)

    2010-01-01

    ... RESERVE SYSTEM BANK HOLDING COMPANIES AND CHANGE IN BANK CONTROL (REGULATION Y) Regulations Financial Holding Companies § 225.81 What is a financial holding company? (a) Definition. A financial holding... 12 Banks and Banking 3 2010-01-01 2010-01-01 false What is a financial holding company? 225.81...

  15. 12 CFR 583.12 - Multiple savings and loan holding company.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Multiple savings and loan holding company. 583... DEFINITIONS FOR REGULATIONS AFFECTING SAVINGS AND LOAN HOLDING COMPANIES § 583.12 Multiple savings and loan holding company. The term multiple savings and loan holding company means any savings and loan holding...

  16. 12 CFR 583.11 - Diversified savings and loan holding company.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Diversified savings and loan holding company... DEFINITIONS FOR REGULATIONS AFFECTING SAVINGS AND LOAN HOLDING COMPANIES § 583.11 Diversified savings and loan holding company. The term diversified savings and loan holding company means any savings and loan holding...

  17. Development of hold down plate of INGLE fuel assembly

    International Nuclear Information System (INIS)

    Kim, Hyeong Koo; Kim, Kyu Tae

    1996-07-01

    Hold down plate for the INGLE fuel which has been designed for high performance in the standpoints of thermal margin and structural integrity compared to current fuel for YGN 3/4 and UCN 3/4 has been developed and its structural integrity has been verified based on the eh stress analysis. The design feature of the developed hold down plate has not only perfect compatibility with the reactor internals of Korea standard reactor, but also brand-new locking mechanism between upper tie plate and guide tubes. This locking mechanism introduced to the INGLE fuel provides very simple and reliable reconstitutability. In this report, finite element stress analysis with the aid of the ANSYS code as a solver and the MSC/PATRAN code as a pre and post processor were performed to verify structural integrity of the hold down plate considering various load cases which seem to be applied to the hold down plate during its lifetime. Based on the analysis results, the developed hold down plate for INGLE fuel sustains structural integrity under considered load conditions. 3 tabs., 16 figs., 9 refs. (Author)

  18. Microengineered physiological biomimicry: organs-on-chips.

    Science.gov (United States)

    Huh, Dongeun; Torisawa, Yu-suke; Hamilton, Geraldine A; Kim, Hyun Jung; Ingber, Donald E

    2012-06-21

    Microscale engineering technologies provide unprecedented opportunities to create cell culture microenvironments that go beyond current three-dimensional in vitro models by recapitulating the critical tissue-tissue interfaces, spatiotemporal chemical gradients, and dynamic mechanical microenvironments of living organs. Here we review recent advances in this field made over the past two years that are focused on the development of 'Organs-on-Chips' in which living cells are cultured within microfluidic devices that have been microengineered to reconstitute tissue arrangements observed in living organs in order to study physiology in an organ-specific context and to develop specialized in vitro disease models. We discuss the potential of organs-on-chips as alternatives to conventional cell culture models and animal testing for pharmaceutical and toxicology applications. We also explore challenges that lie ahead if this field is to fulfil its promise to transform the future of drug development and chemical safety testing.

  19. Surface enhanced raman spectroscopy on chip

    DEFF Research Database (Denmark)

    Hübner, Jörg; Anhøj, Thomas Aarøe; Zauner, Dan

    2007-01-01

    In this paper we report low resolution surface enhanced Raman spectra (SERS) conducted with a chip based spectrometer. The flat field spectrometer presented here is fabricated in SU-8 on silicon, showing a resolution of around 3 nm and a free spectral range of around 100 nm. The output facet...... is projected onto a CCD element and visualized by a computer. To enhance the otherwise rather weak Raman signal, a nanosurface is prepared and a sample solutions is impregnated on this surface. The surface enhanced Raman signal is picked up using a Raman probe and coupled into the spectrometer via an optical...... fiber. The obtained spectra show that chip based spectrometer together with the SERS active surface can be used as Raman sensor....

  20. On-Chip Microwave Quantum Hall Circulator

    Directory of Open Access Journals (Sweden)

    A. C. Mahoney

    2017-01-01

    Full Text Available Circulators are nonreciprocal circuit elements that are integral to technologies including radar systems, microwave communication transceivers, and the readout of quantum information devices. Their nonreciprocity arises from the interference of microwaves over the centimeter scale of the signal wavelength, in the presence of bulky magnetic media that breaks time-reversal symmetry. Here, we realize a completely passive on-chip microwave circulator with size 1/1000th the wavelength by exploiting the chiral, “slow-light” response of a two-dimensional electron gas in the quantum Hall regime. For an integrated GaAs device with 330  μm diameter and about 1-GHz center frequency, a nonreciprocity of 25 dB is observed over a 50-MHz bandwidth. Furthermore, the nonreciprocity can be dynamically tuned by varying the voltage at the port, an aspect that may enable reconfigurable passive routing of microwave signals on chip.

  1. Microfluidic chip-capillary electrophoresis devices

    CERN Document Server

    Fung, Ying Sing; Du, Fuying; Guo, Wenpeng; Ma, Tongmei; Nie, Zhou; Sun, Hui; Wu, Ruige; Zhao, Wenfeng

    2015-01-01

    Capillary electrophoresis (CE) and microfluidic chip (MC) devices are relatively mature technologies, but this book demonstrates how they can be integrated into a single, revolutionary device that can provide on-site analysis of samples when laboratory services are unavailable. By introducing the combination of CE and MC technology, Microfluidic Chip-Capillary Electrophoresis Devices broadens the scope of chemical analysis, particularly in the biomedical, food, and environmental sciences. The book gives an overview of the development of MC and CE technology as well as technology that now allows for the fabrication of MC-CE devices. It describes the operating principles that make integration possible and illustrates some achievements already made by the application of MC-CE devices in hospitals, clinics, food safety, and environmental research. The authors envision further applications for private and public use once the proof-of-concept stage has been passed and obstacles to increased commercialization are ad...

  2. Heat toxicant contaminant mitigation in potato chips

    DEFF Research Database (Denmark)

    Mariotti, Maria; Cortes, Pablo; Fromberg, Arvid

    2015-01-01

    Heating foods immersed in oil during frying provides many attractive sensorial attributes including taste, flavor and color. However, some toxic compounds formed during frying of potatoes such as furan and acrylamide may constitute an increased cancer risk for consumers. The objective of this work...... was to mitigate the furan and acrylamide formation in potato chips without increasing their oil uptake by optimizing the blanching treatment before final frying. Potato slices were blanched in order to simultaneously leach out ascorbic acid and reducing sugars, the most important precursors of furan...... and acrylamide generation in thermally treated starchy foods. A central composite design was implemented to optimize the temperature-time blanching conditions under which furan, acrylamide and oil content in potato chips were minimized. The optimum blanching conditions were 64 degrees C and 17 min in which...

  3. Technology Roadmap: Lab-on-a-Chip

    OpenAIRE

    Pattharaporn Suntharasaj; Tugrul U Daim

    2010-01-01

    With the integration of microfluidic and MEMS technologies, biochips such as the lab-on-a-chip (LOC) devices are at the brink of revolutionizing the medical disease diagnostics industries. Remarkable advancements in the biochips industry are making products resembling Star Trek.s "tricorder" and handheld medical scanners a reality. Soon, doctors can screen for cancer at the molecular level without costly and cumbersome equipments, and discuss treatment plans based on immediate lab results. Th...

  4. Silicon-Chip-Based Optical Frequency Combs

    Science.gov (United States)

    2015-10-26

    fiber-based polarization controllers and a polarization beam splitter , and the output power is monitored with a sensitive photodiode. We use a...a single CW laser beam coupled to a microresonators can produce stabilized, octave-spanning combs through highly cascaded four-wave mixing (FWM...resonator designs , the resonator and the coupling waveguide are monolithically integrated. Thus, the entire on-chip configuration of CMOS-compatible

  5. Routing algorithms in networks-on-chip

    CERN Document Server

    Daneshtalab, Masoud

    2014-01-01

    This book provides a single-source reference to routing algorithms for Networks-on-Chip (NoCs), as well as in-depth discussions of advanced solutions applied to current and next generation, many core NoC-based Systems-on-Chip (SoCs). After a basic introduction to the NoC design paradigm and architectures, routing algorithms for NoC architectures are presented and discussed at all abstraction levels, from the algorithmic level to actual implementation.  Coverage emphasizes the role played by the routing algorithm and is organized around key problems affecting current and next generation, many-core SoCs. A selection of routing algorithms is included, specifically designed to address key issues faced by designers in the ultra-deep sub-micron (UDSM) era, including performance improvement, power, energy, and thermal issues, fault tolerance and reliability.   ·         Provides a comprehensive overview of routing algorithms for Networks-on-Chip and NoC-based, manycore systems; ·         Describe...

  6. A single chip with multiple talents

    CERN Multimedia

    Francesco Poppi

    2010-01-01

    The Medipix chips developed at CERN are being used in a variety of fields: from medicine to education and back to high-tech engineering. The scene is set for a bright future for this versatile technology.   The Medipix chip. It didn’t take long for a brilliant team of physicists and engineers who were working on pixel detectors for the LHC to realize that the technology had great potential in medical imaging. This was the birth of the Medipix project. Fifteen years later, with the collaboration of 18 research institutes, the team has produced an advanced version of the initial ideas: Medipix3 is a device that can measure very accurately the position and energy of the photons (one by one) that hit the associated detector. Radiography and computed tomography (CT) use X-ray photons to study the human body. The different energies of the photons in the beam can be thought of as the colours of the X-ray spectrum. This is why the use of Medipix3 chips in such diagnostic techniques is referred...

  7. Control of cooperative manipulators in holding deformable objects

    Science.gov (United States)

    Alkathiri, A. A.; Azlan, N. Z.

    2017-11-01

    This paper presents the implementation of a control system to control cooperative manipulators to hold deformable objects. The aim is to hold the deformable object without having information on the shape and stiffness of the deformable object beforehand. The prototype of a pair of manipulators has been designed and built to test the controller. A force sensor and a rotary encoder are used to give feedback to the controller, which controls the DC motor actuators accordingly. A position proportional-integral-derivative (PID) controller technique has been applied for one of the manipulators and a PID force control technique is applied to the other. Simulations and experimental tests have been conducted on models and the controller has been implemented on the real plant. Both simulation and test results prove that the implemented control technique has successfully provided the desired position and force to hold the deformable object with maximum experimental errors of 0.34mm and 50mN respectively.

  8. C-14/I-29 Preservation and Hold Time Survey

    Energy Technology Data Exchange (ETDEWEB)

    Kitchen, S. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2015-04-08

    Preservation and hold time of radionuclides must account for both nuclear half-lives and nonnuclear loss mechanisms, but variations in the latter are often neglected. Metals-based defaults are inappropriate for long-lived non-metals C-14 and I-129, which are vulnerable to chemical and biological volatilization. Non-acidification is already widely practiced for them. Recommended addition measures from radiological and chemical literature include glass containers where possible, water filtration where possible, headspace minimization, light shielding, cold (4°C) storage and unfiltered water hold time of 28 days. Soil hold time may need to be shortened when water-logged, excessively sandy, or still adjusting to significant new contamination.

  9. Molten core material holding device in a nuclear reactor

    International Nuclear Information System (INIS)

    Nakamura, Hisashi; Tanaka, Nobuo; Takahashi, Katsuro.

    1985-01-01

    Purpose: To improve the function of cooling to hold molten core materials in a molten core material holding device. Constitution: Plenum structures are formed into a pan-like configuration, in which liners made of metal having high melting point and relatively high heat conductivity such as tantalum, tungsten, rhenium or alloys thereof are integrally appended to hold and directly cool the molten reactor core materials. Further, a plurality of heat pipes, passing through the plenum structures, facing the cooling portion thereof to the coolants at the outer side and immersing the heating portion into the molten core materials fallen to deposit in the inner liners are disposed radially. Furthermore, heat pipes embodded in the plenum structure are disposed in the same manner below the liners. Thus, the plenum structures and the molten reactor core materials can be cooled at a high efficiency. (Seki, T.)

  10. Internationalization and Corporate Cash Holdings: Evidence from Brazil and Mexico

    Directory of Open Access Journals (Sweden)

    Newton Arata

    2015-05-01

    Full Text Available This research expands on previous studies of cash holdings and their determinants by studying the relationship between the degree of internationalization and the level of corporate cash holdings. We used a sample of nonfinancial, publicly traded companies from Brazil and Mexico for the period from 2006 to 2010. Our results suggest that the degree of internationalization is a determinant of cash, and that cash holding increases quadratically as the degree of company internationalization grows. Such behavior was different from the North American company studies in Chiang and Wang (2011. Similar to previous studies, both Trade-off and Pecking Order predictions are relevant control variables in our model. Finally, companies held less cash on their balance sheets during the precrisis period.

  11. 76 FR 68189 - Healthcare Technology Holdings, Inc.; Analysis of Proposed Agreement Containing Consent Orders To...

    Science.gov (United States)

    2011-11-03

    ... FEDERAL TRADE COMMISSION [File No. 111 0097] Healthcare Technology Holdings, Inc.; Analysis of... Technology Holdings, Inc. (``Healthcare Technology''), subject to final approval, an Agreement Containing... Healthcare Technology's proposed acquisition of SDI Health LLC (``SDI'') from SDI Health Holdings LLC (``SDI...

  12. Power-aware transceiver design for half-duplex bidirectional chip-to-chip optical interconnects

    International Nuclear Information System (INIS)

    Sangirov Jamshid; Ukaegbu Ikechi Augustine; Lee Tae-Woo; Park Hyo-Hoon; Sangirov Gulomjon

    2013-01-01

    A power-aware transceiver for half-duplex bidirectional chip-to-chip optical interconnects has been designed and fabricated in a 0.13 μm complementary metal–oxide–semiconductor (CMOS) technology. The transceiver can detect the presence and absence of received signals and saves 55% power in Rx enabled mode and 45% in Tx enabled mode. The chip occupies an area of 1.034 mm 2 and achieves a 3-dB bandwidth of 6 GHz and 7 GHz in Tx and Rx modes, respectively. The disabled outputs for the Tx and Rx modes are isolated with 180 dB and 139 dB, respectively, from the enabled outputs. Clear eye diagrams are obtained at 4.25 Gbps for both the Tx and Rx modes. (semiconductor integrated circuits)

  13. A Ship Cargo Hold Inspection Approach Using Laser Vision Systems

    OpenAIRE

    SHEN Yang; ZHAO Ning; LIU Haiwei; MI Chao

    2013-01-01

    Our paper represents a vision system based on the laser measurement system (LMS) for bulk ship inspection. The LMS scanner with 2-axis servo system is installed on the ship loader to build the shape of the ship. Then, a group of real-time image processing algorithms are implemented to compute the shape of the cargo hold, the inclination angle of the ship and the relative position between the ship loader and the cargo hold. Based on those computed inspection data of the ship, the ship loader c...

  14. Investasi: Komparasi Strategi Buy and Hold dengan Pendekatan Teknikal

    Directory of Open Access Journals (Sweden)

    Natica Ardani

    2012-01-01

    Full Text Available This research aims to analyse effectivity of technical analysis moving average compare to buy and hold strategy on index LQ-45 (as emerging market and S&P500 (as developed market. Using descriptive approach, this research analysed by metastock program with moving average exponential crossovers method. This research data samples use LQ45 and S&P500 from year 2001-2011. The findings of this research indicate that technical analysis more effective when economic situation on crisis (bearish. Whereas buy and hold strategy more effective on good economic condition (bullish. The results consistent for LQ-45 and S&P500.

  15. Holding Pressure and Its Influence on Quality in PIM Technology

    Directory of Open Access Journals (Sweden)

    Pavel Petera

    2012-01-01

    Full Text Available The PIM (powder injection molding process consists of several steps in which faults can occur. The quality of the part that is produced usually cannot be seen until the end of the process. It is therefore necessary to find a way to discover the fault earlier in the process. The cause of defects is very often “phase separation” (inhomogeneity in powder distribution, which can also be influenced by the holding pressure. This paper evaluates the powder distribution with a new method based on density measurement. Measurements were made using various holding pressure values.

  16. The Effect of Holding a Research Chair on Scientists’ Impact

    Energy Technology Data Exchange (ETDEWEB)

    Mirnezami, S.R.; Beaudry, C.

    2016-07-01

    This paper examines the effect of holding Canada Research Chair (CRC) on a scientist’s number of citations as a measure of research impact, based on an econometric analysis with combined data on Quebec scientists’ funding and journal publication. Using Generalized Least Square (GLS) method for regression analysis, the results show that holding either tier-1 or tier- 2 of CRC significantly and positively results in conducting research with higher impact. This finding, however, does not necessarily imply that the others are the lesser scientists. (Author)

  17. A fast template matching method for LED chip Localization

    Directory of Open Access Journals (Sweden)

    Zhong Fuqiang

    2015-01-01

    Full Text Available Efficiency determines the profits of the semiconductor producers. So the producers spare no effort to enhance the efficiency of every procedure. The purpose of the paper is to present a method to shorten the time to locate the LED chips on wafer. The method consists of 3 steps. Firstly, image segmentation and blob analyzation are used to predict the positions of potential chips. Then predict the orientations of potential chips based on their dominant orientations. Finally, according to the positions and orientations predicted above, locate the chips precisely based on gradient orientation features. Experiments show that the algorithm is faster than the traditional method we choose to locate the LED chips. Besides, even the orientations of the chips on wafer are of big deviation to the orientation of the template, the efficiency of this method won't be affected.

  18. A primary battery-on-a-chip using monolayer graphene

    Science.gov (United States)

    Iost, Rodrigo M.; Crespilho, Frank N.; Kern, Klaus; Balasubramanian, Kannan

    2016-07-01

    We present here a bottom-up approach for realizing on-chip on-demand batteries starting out with chemical vapor deposition-grown graphene. Single graphene monolayers contacted by electrode lines on a silicon chip serve as electrodes. The anode and cathode are realized by electrodeposition of zinc and copper respectively onto graphene, leading to the realization of a miniature graphene-based Daniell cell on a chip. The electrolyte is housed partly in a gel and partly in liquid form in an on-chip enclosure molded using a 3d printer or made out of poly(dimethylsiloxane). The realized batteries provide a stable voltage (∼1.1 V) for many hours and exhibit capacities as high as 15 μAh, providing enough power to operate a pocket calculator. The realized batteries show promise for deployment as on-chip power sources for autonomous systems in lab-on-a-chip or biomedical applications.

  19. Solid state silicon based condenser microphone for hearing aid, has transducer chip and IC chip between intermediate chip and openings on both sides of intermediate chip, to allow sound towards diaphragm

    DEFF Research Database (Denmark)

    2000-01-01

    towards diaphragm. Surface of the chip (2) has electrical conductors (14) to connect chip with IC chip (3). USE - For use in miniature electroacoustic devices such as hearing aid. ADVANTAGE - Since sound inlet is covered by filter, dust, moisture and other impurities do not obstruct interior and sound...... inlet of microphone. External electrical connection can be made economically reliable and the thermal stress is avoided with the small size solid state silicon based condenser microphone....

  20. Firing with wood chips in heating and cogeneration plants

    International Nuclear Information System (INIS)

    Kofman, P.D.

    1992-01-01

    The document was produced for use as detailed teaching material aimed at spreading information on the use of wood chips as fuel for heating and cogeneration plants. It includes information and articles on wood fuels generally, combustion values, chopping machines, suppliers, occupational health hazards connected with the handling of wood chips, measuring amounts, the selection of types, prices, ash, environmental aspects and information on the establishment of a wood-chip fired district heating plant. (AB)

  1. Wood chips procurement and research project at the Mikkeli region

    International Nuclear Information System (INIS)

    Saksa, T.; Auvinen, P.

    1996-01-01

    In 1993-94, a large-scale energywood production chain started as a co-operation project by the Mikkeli city forest office and local forestry societies. In 1995 over 115 000 m 3 (about 85 000 MWh of energy) of wood chips were delivered to Pursiala heat and power plant in Mikkeli. About 75 % of these chips was forest processed chips. About 70 % of the forest processed chips was whole tree chips from improvement cuttings of young forest stands and the rest was logging waste chips from regeneration cutting areas. The average total delivery costs of forest processed chips after reduction of energywood and other subsidies were approximately 45 FIM/m 3 (60 FIM/MWh) for the whole tree chips and 38 FIM/m 3 (50 FIM/MWh) for logging waste chips. The delivery costs of forest processed chips could meet the target of Bioenergy Research Programme (45 FIM/MWh) only in the most favourable cases. In an average the delivery costs were about 9 FIM/MWh more than the price obtained when sold to the heat and power plant. However the wood chip production created 27 new jobs and the increase of income to the local economy was about 2.2 milj. FIM /year. The local communities got new tax revenue about 3 FIM/MWh. The gain for the forestry was approximated to be 5 - 6 FIM/MWh. The resources of forest processed chips were studied on the basis of stand measurements. According to the study the most remarkable energywood resources were in young thinning stands on Oxalis-Myrtillus and Myrtillus forest site types. On Oxalis-Myrtillus type almost every and on Myrtillus type every second stand included energywood more than 40 m 3 /ha

  2. Experiment list: SRX485216 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 3K9me3 ChIP from rhino germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq source_na...me=H3K9me3 ChIP from rhino germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=fema...le || tissue=ovary || germline knock-down=rhino || chip antibody=Histone H3K9me3

  3. Experiment list: SRX485222 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 4me2 ChIP from control germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq source_na...me=H3K4me2 ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=fe...male || tissue=ovary || germline knock-down=control || chip antibody=Anti-dimethy

  4. Experiment list: SRX485221 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available K4me2 ChIP from control germline knock-down ovaries, replicate 1; Drosophila melanogaster; ChIP-Seq source_n...ame=H3K4me2 ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=f...emale || tissue=ovary || germline knock-down=control || chip antibody=Anti-dimeth

  5. Experiment list: SRX485215 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available K9me3 ChIP from rhino germline knock-down ovaries, replicate 1; Drosophila melanogaster; ChIP-Seq source_nam...e=H3K9me3 ChIP from rhino germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=femal...e || tissue=ovary || germline knock-down=rhino || chip antibody=Histone H3K9me3 a

  6. Experiment list: SRX485218 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available K9me3 ChIP from piwi germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq source_name...=H3K9me3 ChIP from piwi germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female ...|| tissue=ovary || germline knock-down=piwi || chip antibody=Histone H3K9me3 anti

  7. Experiment list: SRX485213 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available K9me3 ChIP from control germline knock-down ovaries, replicate 1; Drosophila melanogaster; ChIP-Seq source_n...ame=H3K9me3 ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=f...emale || tissue=ovary || germline knock-down=control || chip antibody=Histone H3K

  8. Experiment list: SRX485214 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available K9me3 ChIP from control germline knock-down ovaries, replicate 2; Drosophila melanogaster; ChIP-Seq source_n...ame=H3K9me3 ChIP from control germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=f...emale || tissue=ovary || germline knock-down=control || chip antibody=Histone H3K

  9. Experiment list: SRX485217 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 3K9me3 ChIP from piwi germline knock-down ovaries, replicate 1; Drosophila melanogaster; ChIP-Seq source_nam...e=H3K9me3 ChIP from piwi germline knock-down ovaries || developmental stage=4-6 days old adult || Sex=female... || tissue=ovary || germline knock-down=piwi || chip antibody=Histone H3K9me3 ant

  10. CMOS Image Sensors: Electronic Camera On A Chip

    Science.gov (United States)

    Fossum, E. R.

    1995-01-01

    Recent advancements in CMOS image sensor technology are reviewed, including both passive pixel sensors and active pixel sensors. On- chip analog to digital converters and on-chip timing and control circuits permit realization of an electronic camera-on-a-chip. Highly miniaturized imaging systems based on CMOS image sensor technology are emerging as a competitor to charge-coupled devices for low cost uses.

  11. The Cutting Process, Chips and Cutting Forces in Machining CFRP

    DEFF Research Database (Denmark)

    Koplev, A.; Lystrup, Aage; Vorm, T.

    1983-01-01

    The cutting of unidirectional CFRP, perpendicular as well as parallel to the fibre orientation, is examined. Shaping experiments, ‘quick-stop’ experiments, and a new chip preparation technique are used for the investigation. The formation of the chips, and the quality of the machined surface...... is discussed. The cutting forces parallel and perpendicular to the cutting direction are measured for various parameters, and the results correlated to the formation of chips and the wear of the tool....

  12. A simple clockless Network-on-Chip for a commercial audio DSP chip

    DEFF Research Database (Denmark)

    Stensgaard, Mikkel Bystrup; Bjerregaard, Tobias; Sparsø, Jens

    2006-01-01

    We design a very small, packet-switched, clockless Network-on-Chip (NoC) as a replacement for the existing crossbar-based communication infrastructure in a commercial audio DSP chip. Both solutions are laid out in a 0.18 um process, and compared in terms of area, power consumption and routing...... to the existing crossbar, it allows all blocks to communicate. The total wire length is decreased by 22% which eases the layout process and makes the design less prone to routing congestion. Not least, the communicating blocks are decoupled by means of the NoC, providing a Globally-Asynchronous, Locally...

  13. Integrated lasers for polymer Lab-on-a-Chip systems

    DEFF Research Database (Denmark)

    Mappes, Timo; Vannahme, Christoph; Grosmann, Tobias

    2012-01-01

    We develop optical Lab-on-a-Chips on different platforms for marker-based and label-free biophotonic sensor applications. Our chips are based on polymers and fabricated by mass production technologies to integrate microfluidic channels, optical waveguides and miniaturized lasers.......We develop optical Lab-on-a-Chips on different platforms for marker-based and label-free biophotonic sensor applications. Our chips are based on polymers and fabricated by mass production technologies to integrate microfluidic channels, optical waveguides and miniaturized lasers....

  14. Radiation induced Single Event Effects in the ATLAS MDT-ASD front-end chip

    CERN Document Server

    Posch, C

    2002-01-01

    Single Event Effect (SEE) tests of the MDT-ASD, the ATLAS MDT front-end chip have been performed at the Harvard Cyclotron Lab. The MDT-ASD is an 8-channel drift tube read-out ASIC fabricated in a commercial 0.5um CMOS process (AMOS14TB). The chip contains a 53 bit register which holds the setup information and an associated shift register of the same length plus some additional control logic. 10 test devices were exposed to a 160 MeV proton beam with a fluence of 1.05E9 p.cm-2.s-1 up to >4.4E p.cm-2 per device. After a total fluence of 4.46E13 p.cm-2, 7 soft SEEs (non-permanent bit flips in the registers) and 0 hard/destructive SEE (e.g. latch-ups, SEL) had occurred. The simulated fluence for 10 years of LHC operation at nominal luminosity for worst case location MDT components is 2.67E11 h.cm-2. The rate of SEUs in the ASD setup register for all of ATLAS, derived from these numbers, is 2.4 per day. It is foreseen to update the active registers of the on-detector electronics at regular intervals. Depending on...

  15. Astronaut Dale Gardner holds up for sale sign after EVA

    Science.gov (United States)

    1984-01-01

    Astronaut Dale A. Gardner, having just completed the major portion of his second extravehicular activity (EVA) period in three days, holds up a 'for sale' sign. Astronaut Joseph P. ALlen IV, who also participated in the two EVA's, is reflected in Gardner's helmet visor. A portion of each of two recovered satellites is in the lower right corner, with Westar nearer Discovery's aft.

  16. 31 CFR 346.5 - Limitation on holdings.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Limitation on holdings. 346.5 Section 346.5 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE... deducted in any one year be in equal amounts. While it is permissible for an eligible married couple to...

  17. Physiological alterations in UV-irradiated cells: liquid holding recovery

    International Nuclear Information System (INIS)

    Aragao, B.R.

    1980-01-01

    The biochemical and physiological alterations that occur in ultraviolet irradiated cells, during liquid holding have been studied. Incubation in buffer acts not to interfer directly with the mechanic repairs but by promoting metabolic alterations that would block some irreversible and lethal physiological responses. (L.M.J.) [pt

  18. 26 CFR 1.543-1 - Personal holding company income.

    Science.gov (United States)

    2010-04-01

    ..., franchises, and other like property. It does not, however, include rents. For rules relating to rents see... from futures transactions in commodities. Gross income and personal holding company income include the amount by which the gains exceed the losses from futures transactions in any commodity on or subject to...

  19. Water holding capacity and enzymatic modification of pressed potato fibres

    NARCIS (Netherlands)

    Ramasamy, U.

    2014-01-01

    Cell wall polysaccharides (CWPs) contribute to the water holding capacity (WHC) of fibre rich feeds, such as pressed potato fibres (PPF). However, the role of CWPs on the WHC of PPF was unidentified so far.

    PPF was characterized to be abundant in arabinogalactan (AG) linked

  20. Implementing the South African water policy: holding the vision ...

    African Journals Online (AJOL)

    Implementing the South African water policy: holding the vision while exploring an uncharted mountain. HM MacKay, KH Rogers, DJ Roux. Abstract. This paper discusses the long-term implementation of the South African National Water Policy of 1997, and addresses some of the difficult issues of the management and ...

  1. Linearization of weak hand holds in Russian Sign Language

    NARCIS (Netherlands)

    Kimmelman, V.

    2017-01-01

    Russian Sign Language (RSL) makes use of constructions involving manual simultaneity, in particular, weak hand holds, where one hand is being held in the location and configuration of a sign, while the other simultaneously produces one sign or a sequence of several signs. In this paper, I argue that

  2. Carbon Dioxide Changes in Hyperventilation and Breath-hold Diving

    African Journals Online (AJOL)

    1974-01-05

    Jan 5, 1974 ... South Africa. S. Afr. Med. l., 48, 18 (1974). Under conditions of normal atmospheric pressure, breath- holding results in important changes in the mechanism whereby the CO, is transported ... haemoglobin in the face of falling CO, output to the ... Hong,' in a field study of Korean diving women, noted that they ...

  3. Swiveling Lathe Jaw Concept for Holding Irregular Pieces

    Science.gov (United States)

    David, J.

    1966-01-01

    Clamp holds irregularly shaped pieces in lathe chuck without damage and eliminates excessive time in selecting optimum mounting. Interchangeable jaws ride in standard jaw slots but swivel so that the jaw face bears evenly against the workpiece regardless of contour. The jaws can be used on both engine and turret lathes.

  4. Sample-hold and analog multiplexer for multidetector systems

    Energy Technology Data Exchange (ETDEWEB)

    Goswami, G C; Ghoshdostidar, M R; Ghosh, B; Chaudhuri, N [North Bengal Univ., Darjeeling (India). Dept. of Physics

    1982-08-15

    A new sample-hold circuit with an analog multiplexer system is described. Designed for multichannel acquistion of data from an air shower array, the system is being used for accurate measurements of pulse heights from 16 channels by the use of a single ADC.

  5. OFFSHORIZATION AS MAIN PROBLEM OF HOLDING GROUPS TAXATION

    Directory of Open Access Journals (Sweden)

    Y. Petlenko

    2016-01-01

    Full Text Available At this article, we have analyzed and systematized the conditions of holdings' activity to reduce the taxation level in countries and on the territory of special, so-called offshore, jurisdiction. In addition, we have made a suggestionhow to regulatean offshore capital flows inorder to prevent from tax frauds.

  6. 17 CFR 450.4 - Custodial holdings of government securities.

    Science.gov (United States)

    2010-04-01

    ... securities as of the close of business upon the instruction of such broker or dealer, it shall send a... depository institution's control or direction that are not in its physical possession, where the securities... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Custodial holdings of...

  7. Holding device for gas-cooled reactor fuel elements

    International Nuclear Information System (INIS)

    Hensolt, T.

    1980-01-01

    The sheathed fuel elements of the GCFR are inserted with their pedestal in a grid plate arranged below the reactor core and are clamped there. The clamping force as well as the force required for hydraulic holding-down against the flow pressure of the coolant are applied through the differential pressure between inlet and outlet of the coolant. (DG) [de

  8. farm size holding in northern nigeria: a remote sensing assessment ...

    African Journals Online (AJOL)

    currys

    2014-04-02

    Apr 2, 2014 ... FARM HOLDINGS IN NORTHERN NIGERIA AND IMPLICATION FOR. FOOD SECURITY: A ... about 80.0% of the export earnings in Sub-Saharan Africa. It is the source of .... They rear herds of goats, cattle, donkeys and ...

  9. Voluntary breath holding affects spontaneous brain activity measured by magnetoencephalography

    NARCIS (Netherlands)

    Schellart, N. A.; Reits, D.

    1999-01-01

    Spontaneous brain activity was measured by multichannel magnetoencephalography (MEG) during voluntary breath holds. Significant changes in the activity are limited to the alpha rhythm: 0.25 Hz frequency increase and narrowing of the peak. The area of alpha activity shifts slightly toward (fronto-)

  10. 31 CFR 223.16 - List of certificate holding companies.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false List of certificate holding companies. 223.16 Section 223.16 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) FISCAL SERVICE, DEPARTMENT OF THE TREASURY FINANCIAL MANAGEMENT SERVICE SURETY COMPANIES DOING BUSINESS...

  11. 77 FR 32881 - Supervised Securities Holding Company Registration

    Science.gov (United States)

    2012-06-04

    ...), The Report of Foreign Banking Organizations (FR Y-7), The Consolidated Financial Statements for Bank... Y-9ES), The Supplement to the Consolidated Financial Statements for Bank Holding Companies (FR Y-9CS... comprehensive consolidated supervision by a foreign regulator, a nonbank financial company supervised by the...

  12. The myth of the early aviation patent hold-up

    DEFF Research Database (Denmark)

    Katznelson, Ron D; Howells, John

    2015-01-01

    The prevailing historical accounts of the formation of the U.S. aircraft “patent pool” in 1917 assume the U.S. Government necessarily intervened to alleviate a patent hold-up among private aircraft manufacturers. We show these accounts to be inconsistent with the historical facts. We show that de...

  13. On-chip fabrication of alkali-metal vapor cells utilizing an alkali-metal source tablet

    International Nuclear Information System (INIS)

    Tsujimoto, K; Hirai, Y; Sugano, K; Tsuchiya, T; Tabata, O; Ban, K; Mizutani, N

    2013-01-01

    We describe a novel on-chip microfabrication technique for the alkali-metal vapor cell of an optically pumped atomic magnetometer (OPAM), utilizing an alkali-metal source tablet (AMST). The newly proposed AMST is a millimeter-sized piece of porous alumina whose considerable surface area holds deposited alkali-metal chloride (KCl) and barium azide (BaN 6 ), source materials that effectively produce alkali-metal vapor at less than 400 °C. Our experiments indicated that the most effective pore size of the AMST is between 60 and 170 µm. The thickness of an insulating glass spacer holding the AMST was designed to confine generated alkali metal to the interior of the vapor cell during its production, and an integrated silicon heater was designed to seal the device using a glass frit, melted at an optimum temperature range of 460–490 °C that was determined by finite element method thermal simulation. The proposed design and AMST were used to successfully fabricate a K cell that was then operated as an OPAM with a measured sensitivity of 50 pT. These results demonstrate that the proposed concept for on-chip microfabrication of alkali-metal vapor cells may lead to effective replacement of conventional glassworking approaches. (paper)

  14. Methods for size classification of wood chips

    Energy Technology Data Exchange (ETDEWEB)

    Hartmann, Hans; Boehm, Thorsten [Technologie- und Foerderzentrum im Kompetenzzentrum fuer Nachwachsende Rohstoffe (TFZ), Schulgasse 18, D-94315 Straubing (Germany); Daugbjerg Jensen, Peter [Forest and Landscape FLD, The Royal Veterinary and Agricultural University, Rolighedsvej 23, DK-1958 Frederiksberg C (Denmark); Temmerman, Michaeel; Rabier, Fabienne [Centre wallon de Recherches agronomiques CRA-W Departement Genie rural, 146, Chaussee de Namur, B-5030 Gembloux (Belgium); Golser, Michael [Holzforschung Austria HFA Franz Grill-Stra beta e 7, A-1031 Wien (Austria)

    2006-11-15

    Methods for size classification of wood chips were analysed in an international round robin using 13 conventional wood chip samples and two specially prepared standard samples, one from wood chips and one from hog fuel. The true size distribution of these two samples (according to length, width and height) had been determined stereometrically (reference method) using a digital calliper gauge and by weighing each of the about 7000 wood particles per sample. Five different horizontal and three rotary screening devices were tested using five different screen hole diameters (3.15, 8, 16, 45, 63mm, round holes). These systems are compared to a commercially available continuously measuring image analysis equipment. The results show that among the devices of a measuring principle-horizontal and rotary screening-the results are quite comparable, while there is a severe incompatibility when distributions are determined by different measuring principles. Highest conformity with the reference values is given for measurements with an image analysis system, whereas for all machines with horizontal screens the median value of the size distribution only reached between one-third to half of the reference median value for the particle length distribution. These deviations can be attributed to a higher particle misplacement, which is particularly found in the larger fractions. Such differences decrease when the particle's shape is more roundish (i.e. sphericity closer to one). The median values of length distributions from screenings with a rotary classifier are between the measurements from an image analysis and horizontal screening devices. (author)

  15. Computer System Design System-on-Chip

    CERN Document Server

    Flynn, Michael J

    2011-01-01

    The next generation of computer system designers will be less concerned about details of processors and memories, and more concerned about the elements of a system tailored to particular applications. These designers will have a fundamental knowledge of processors and other elements in the system, but the success of their design will depend on the skills in making system-level tradeoffs that optimize the cost, performance and other attributes to meet application requirements. This book provides a new treatment of computer system design, particularly for System-on-Chip (SOC), which addresses th

  16. Architectures for single-chip image computing

    Science.gov (United States)

    Gove, Robert J.

    1992-04-01

    This paper will focus on the architectures of VLSI programmable processing components for image computing applications. TI, the maker of industry-leading RISC, DSP, and graphics components, has developed an architecture for a new-generation of image processors capable of implementing a plurality of image, graphics, video, and audio computing functions. We will show that the use of a single-chip heterogeneous MIMD parallel architecture best suits this class of processors--those which will dominate the desktop multimedia, document imaging, computer graphics, and visualization systems of this decade.

  17. Energy Harvesting Chip and the Chip Based Power Supply Development for a Wireless Sensor Network

    Science.gov (United States)

    Lee, Dasheng

    2008-01-01

    In this study, an energy harvesting chip was developed to scavenge energy from artificial light to charge a wireless sensor node. The chip core is a miniature transformer with a nano-ferrofluid magnetic core. The chip embedded transformer can convert harvested energy from its solar cell to variable voltage output for driving multiple loads. This chip system yields a simple, small, and more importantly, a battery-less power supply solution. The sensor node is equipped with multiple sensors that can be enabled by the energy harvesting power supply to collect information about the human body comfort degree. Compared with lab instruments, the nodes with temperature, humidity and photosensors driven by harvested energy had variation coefficient measurement precision of less than 6% deviation under low environmental light of 240 lux. The thermal comfort was affected by the air speed. A flow sensor equipped on the sensor node was used to detect airflow speed. Due to its high power consumption, this sensor node provided 15% less accuracy than the instruments, but it still can meet the requirement of analysis for predicted mean votes (PMV) measurement. The energy harvesting wireless sensor network (WSN) was deployed in a 24-hour convenience store to detect thermal comfort degree from the air conditioning control. During one year operation, the sensor network powered by the energy harvesting chip retained normal functions to collect the PMV index of the store. According to the one month statistics of communication status, the packet loss rate (PLR) is 2.3%, which is as good as the presented results of those WSNs powered by battery. Referring to the electric power records, almost 54% energy can be saved by the feedback control of an energy harvesting sensor network. These results illustrate that, scavenging energy not only creates a reliable power source for electronic devices, such as wireless sensor nodes, but can also be an energy source by building an energy efficient

  18. Energy Harvesting Chip and the Chip Based Power Supply Development for a Wireless Sensor Network

    Directory of Open Access Journals (Sweden)

    Dasheng Lee

    2008-12-01

    Full Text Available In this study, an energy harvesting chip was developed to scavenge energy from artificial light to charge a wireless sensor node. The chip core is a miniature transformer with a nano-ferrofluid magnetic core. The chip embedded transformer can convert harvested energy from its solar cell to variable voltage output for driving multiple loads. This chip system yields a simple, small, and more importantly, a battery-less power supply solution. The sensor node is equipped with multiple sensors that can be enabled by the energy harvesting power supply to collect information about the human body comfort degree. Compared with lab instruments, the nodes with temperature, humidity and photosensors driven by harvested energy had variation coefficient measurement precision of less than 6% deviation under low environmental light of 240 lux. The thermal comfort was affected by the air speed. A flow sensor equipped on the sensor node was used to detect airflow speed. Due to its high power consumption, this sensor node provided 15% less accuracy than the instruments, but it still can meet the requirement of analysis for predicted mean votes (PMV measurement. The energy harvesting wireless sensor network (WSN was deployed in a 24-hour convenience store to detect thermal comfort degree from the air conditioning control. During one year operation, the sensor network powered by the energy harvesting chip retained normal functions to collect the PMV index of the store. According to the one month statistics of communication status, the packet loss rate (PLR is 2.3%, which is as good as the presented results of those WSNs powered by battery. Referring to the electric power records, almost 54% energy can be saved by the feedback control of an energy harvesting sensor network. These results illustrate that, scavenging energy not only creates a reliable power source for electronic devices, such as wireless sensor nodes, but can also be an energy source by building an

  19. Energy Harvesting Chip and the Chip Based Power Supply Development for a Wireless Sensor Network.

    Science.gov (United States)

    Lee, Dasheng

    2008-12-02

    In this study, an energy harvesting chip was developed to scavenge energy from artificial light to charge a wireless sensor node. The chip core is a miniature transformer with a nano-ferrofluid magnetic core. The chip embedded transformer can convert harvested energy from its solar cell to variable voltage output for driving multiple loads. This chip system yields a simple, small, and more importantly, a battery-less power supply solution. The sensor node is equipped with multiple sensors that can be enabled by the energy harvesting power supply to collect information about the human body comfort degree. Compared with lab instruments, the nodes with temperature, humidity and photosensors driven by harvested energy had variation coefficient measurement precision of less than 6% deviation under low environmental light of 240 lux. The thermal comfort was affected by the air speed. A flow sensor equipped on the sensor node was used to detect airflow speed. Due to its high power consumption, this sensor node provided 15% less accuracy than the instruments, but it still can meet the requirement of analysis for predicted mean votes (PMV) measurement. The energy harvesting wireless sensor network (WSN) was deployed in a 24-hour convenience store to detect thermal comfort degree from the air conditioning control. During one year operation, the sensor network powered by the energy harvesting chip retained normal functions to collect the PMV index of the store. According to the one month statistics of communication status, the packet loss rate (PLR) is 2.3%, which is as good as the presented results of those WSNs powered by battery. Referring to the electric power records, almost 54% energy can be saved by the feedback control of an energy harvesting sensor network. These results illustrate that, scavenging energy not only creates a reliable power source for electronic devices, such as wireless sensor nodes, but can also be an energy source by building an energy efficient

  20. Wood harvesting as chunkwood chips and multi-stage chipping; Puun korjuu palahakkeena ja monivaiheinen lastuaminen

    Energy Technology Data Exchange (ETDEWEB)

    Kaipainen, H.; Seppaenen, V.

    1996-12-31

    The task for the year 1995 was to define the preliminary results of the previous years, to measure the productivity of a harvester, designed for production of chunkwood, and the properties of the chunks. The costs of the PALAPUU method from the felling site to pulpwood chips were to be examined on this basis. Because the prototype of the harvester was not yet available for field tests, the costs were partially calculated on the basis of previous measurements, completed by productivity data obtained from the time-consumption measurements of a multi-tree harvester, applied with minor alteration for this purpose. According to the calculations the PALAPUU method cannot compete with partial-tree or shortwood methods. The profitability of the method could be improved by adding the transportation density and the productivity of the harvester. It is also possible to procure timber to the mill as partial-trees and to chunk it while feeding it into the drum. Chipping tests were made using the steel-frame-chipper owned by VTT Construction Technology. The blade construction of the chipper was changed so, that it was possible to adjust the cutting thickness of the chips to 4 mm, while in the previous mill-tests it had been 6 mm. The chips were used for cooking tests in the Department of Chemistry of the University of Jyvaeskylae. The results showed that the thinner chips were cooked further under the same cooking conditions. By using the chunkwood method it is possible to harvest 10-70 more biomass for the mills, than it is possible in the pulpwood harvesting

  1. Wood harvesting as chunkwood chips and multi-stage chipping; Puun korjuu palahakkeena ja monivaiheinen lastuaminen

    Energy Technology Data Exchange (ETDEWEB)

    Kaipainen, H; Seppaenen, V

    1997-12-31

    The task for the year 1995 was to define the preliminary results of the previous years, to measure the productivity of a harvester, designed for production of chunkwood, and the properties of the chunks. The costs of the PALAPUU method from the felling site to pulpwood chips were to be examined on this basis. Because the prototype of the harvester was not yet available for field tests, the costs were partially calculated on the basis of previous measurements, completed by productivity data obtained from the time-consumption measurements of a multi-tree harvester, applied with minor alteration for this purpose. According to the calculations the PALAPUU method cannot compete with partial-tree or shortwood methods. The profitability of the method could be improved by adding the transportation density and the productivity of the harvester. It is also possible to procure timber to the mill as partial-trees and to chunk it while feeding it into the drum. Chipping tests were made using the steel-frame-chipper owned by VTT Construction Technology. The blade construction of the chipper was changed so, that it was possible to adjust the cutting thickness of the chips to 4 mm, while in the previous mill-tests it had been 6 mm. The chips were used for cooking tests in the Department of Chemistry of the University of Jyvaeskylae. The results showed that the thinner chips were cooked further under the same cooking conditions. By using the chunkwood method it is possible to harvest 10-70 more biomass for the mills, than it is possible in the pulpwood harvesting

  2. An economic evaluation of a chlorhexidine chip for treating chronic periodontitis: the CHIP (chlorhexidine in periodontitis) study.

    Science.gov (United States)

    Henke, C J; Villa, K F; Aichelmann-Reidy, M E; Armitage, G C; Eber, R M; Genco, R J; Killoy, W J; Miller, D P; Page, R C; Polson, A M; Ryder, M I; Silva, S J; Somerman, M J; Van Dyke, T E; Wolff, L F; Evans, C J; Finkelman, R D

    2001-11-01

    The authors previously suggested that an adjunctive, controlled-release chlorhexidine, or CHX, chip may reduce periodontal surgical needs at little additional cost. This article presents an economic analysis of the CHX chip in general dental practice. In a one-year prospective clinical trial, 484 chronic periodontitis patients in 52 general practices across the United States were treated with either scaling and root planing, or SRP, plus any therapy prescribed by treating, unblinded dentists; or SRP plus other therapy as above but including the CHX chip. Economic data were collected from bills, case report forms and 12-month treatment recommendations from blinded periodontist evaluators. Total dental charges were higher for SRP + CHX chip patients vs. SRP patients when CHX chip costs were included (P = .027) but lower when CHX chip costs were excluded (P = .012). About one-half of the CHX chip acquisition cost was offset by savings in other charges. SRP + CHX chip patients were about 50 percent less likely to undergo surgical procedures than were SRP patients (P = .021). At the end of the trial, periodontist evaluators recommended similar additional procedures for both groups: SRP, about 46 percent; maintenance, about 37 percent; surgery, 56 percent for SRP alone and 63 percent for SRP + CHX chip. Adjunctive CHX chip use for general-practice patients with periodontitis increased costs but reduced surgeries over one year. At study's end, periodontists recommended similar additional surgical treatment for both groups. In general practice, routine use of the CHX chip suggests that costs will be partially offset by reduced surgery over at least one year.

  3. Experiment list: SRX507380 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available + (wildtype) || age of animals=1-5 day old || tissue=Ovaries || chip antibody=anti-HP1 || chip antibody vend...1770: WT anti-HP1- replicate#2; Drosophila melanogaster; ChIP-Seq source_name=WT_WT_anti-HP1 || strain=piwi/

  4. Experiment list: SRX507384 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available + (wildtype) || age of animals=1-5 day old || tissue=Ovaries || chip antibody=Anti-H3K4me2 || chip antibody ... Anti-H3K4me2- replicate#2; Drosophila melanogaster; ChIP-Seq source_name=WT_WT_Anti-H3K4me2 || strain=piwi/

  5. Experiment list: SRX507382 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available + (wildtype) || age of animals=1-5 day old || tissue=Ovaries || chip antibody=Anti-H3K9me3 || chip antibody ... Anti-H3K9me3- replicate#2; Drosophila melanogaster; ChIP-Seq source_name=WT_WT_Anti-H3K9me3 || strain=piwi/

  6. The Chip-Scale Atomic Clock - Recent Development Progress

    Science.gov (United States)

    2004-09-01

    35th Annual Precise Time and Time Interval (PTTI) Meeting 467 THE CHIP-SCALE ATOMIC CLOCK – RECENT DEVELOPMENT PROGRESS R. Lutwak ...1] R. Lutwak , et al., 2003, “The Chip-Scale Atomic Clock – Coherent Population Trapping vs. Conventional Interrogation,” in

  7. A microfluidic chip for electrochemical conversions in drug metabolism studies

    NARCIS (Netherlands)

    Odijk, Mathieu; Baumann, A.; Lohmann, W.; van den Brink, Floris Teunis Gerardus; Olthuis, Wouter; Karst, U.; van den Berg, Albert

    2009-01-01

    We have designed a microfluidic microreactor chip for electrochemical conversion of analytes, containing a palladium reference electrode and platinum working and counter electrodes. The counter electrode is placed in a separate side-channel on chip to prevent unwanted side-products appearing in the

  8. A Process Technology For Conversion Of Dried Cassava Chips Into ...

    African Journals Online (AJOL)

    “Gari”, made from fermented bitter Cassava roots (Manihot esculenta crantz) were successfully processed from already dried Cassava chips at 7% moisture level. Cassava mash at 67% moisture was prepared from dried Cassava chips. This was seeded severally with fresh cassava mash and fermented for 72hours.

  9. Design of a 1-chip IBM-3270 protocol handler

    NARCIS (Netherlands)

    Spaanenburg, L.

    1989-01-01

    The single-chip design of a 20MHz IBM-3270 coax protocol handler in a conventional 3 μ CMOS process-technology is discussed. The harmonious combination of CMOS circuit tricks and high-level design disciplines allows the 50k transistor design to be compiled and optimized into a 35 mm**2 chip in 4

  10. Experiment list: SRX144526 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available stein-Barr Virus transformed 11803840,92.5,91.6,38 GSM922971: NRF2 ChIP vehicle treated rep2; Homo sapiens; ...ChIP-Seq source_name=NRF2 ChIP vehicle treated || biomaterial_provider=Coriell; h

  11. Experiment list: SRX176063 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available =Carcinoma 11279321,95.5,3.6,13985 GSM984395: LNCAP ACH3 vehicle; Homo sapiens; ChIP-Seq source_name=prostat...e cancer cells || cell line=LNCaP || chip antibody=AcH3 || chip antibody manufacturer=Millipore || treatment=EtOH vehicle

  12. Experiment list: SRX176057 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available nosis=Carcinoma 21582823,90.1,7.3,1074 GSM984389: 22RV1 AR vehicle; Homo sapiens; ChIP-Seq source_name=prost...ate cancer cells || cell line=22RV1 || chip antibody=AR || chip antibody manufacturer=Abcam || treatment=EtOH vehicle

  13. Experiment list: SRX176054 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available nosis=Carcinoma 13338805,91.2,4.9,792 GSM984386: LNCAP AR vehicle; Homo sapiens; ChIP-Seq source_name=prosta...te cancer cells || cell line=LNCaP || chip antibody=AR || chip antibody manufacturer=Abcam || treatment=EtOH vehicle

  14. Experiment list: SRX176067 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available sis=Carcinoma 6619400,91.7,7.2,13648 GSM984399: LNCAP H3K4ME3 vehicle; Homo sapiens; ChIP-Seq source_name=pr...ostate cancer cells || cell line=LNCaP || chip antibody=H3K4Me3 || chip antibody manufacturer=Millipore || treatment=EtOH vehicle

  15. Experiment list: SRX144527 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available neage=mesoderm|Description=parental cell type to lymphoblastoid cell lines 8704444,92.1,92.5,9 GSM922972: NRF2 ChIP vehicle... treated rep3; Homo sapiens; ChIP-Seq source_name=NRF2 ChIP vehicle treated || biomaterial_pr

  16. Experiment list: SRX144525 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available neage=mesoderm|Description=parental cell type to lymphoblastoid cell lines 14487710,85.8,82.8,188 GSM922970: NRF2 ChIP vehicle... treated rep1; Homo sapiens; ChIP-Seq source_name=NRF2 ChIP vehicle treated || biomaterial

  17. Experiment list: SRX144524 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available neage=mesoderm|Description=parental cell type to lymphoblastoid cell lines 4766716,6.2,89.4,0 GSM922969: NRF2 ChIP vehicle... treated pilot; Homo sapiens; ChIP-Seq source_name=NRF2 ChIP vehicle treated || biomaterial_pr

  18. Single-chip microcomputer application in nuclear radiation monitoring instruments

    International Nuclear Information System (INIS)

    Zhang Songshou

    1994-01-01

    The single-chip microcomputer has advantage in many respects i.e. multiple function, small size, low-power consumption,reliability etc. It is widely used now in industry, instrumentation, communication and machinery. The author introduced usage of single-chip microcomputer in nuclear radiation monitoring instruments for control, linear compensation, calculation, changeable parameter presetting and military training

  19. Experiment list: SRX352046 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available SM1232564: CSB M CHIP; Homo sapiens; ChIP-Seq source_name=fibroblast_menadione_CSB-ChIP || cell type=fibroblast || treated with=menad...ione || chip antibody=Mouse monoclonal anti-CSB N Terminus (1B1) http://dbarchive.b

  20. Experiment list: SRX262797 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 3T3_SAP1_03 || cell line=NIH3T3 fibroblasts || genotype=normal || chip antibody=SAP-1a || chip antibody vendor=Santa Cruz Biotechnolo...gy http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/eachDa