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Articoli di riviste sul tema "Ceiling filler"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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1

Ezenwa, Obiora Nnaemeka, Echezona Nnaemeka Obika, Onyemazuwa Andrew Azaka, and Emmanuel Chinagorom Nwadike. "Effect of filler carbonization on agro-waste based ceiling board." Advances in Mechanical Engineering 13, no. 2 (2021): 168781402199440. http://dx.doi.org/10.1177/1687814021994403.

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This work presents the use as a filler of carbonized breadfruit seed coat and recycled low density polyethylene as the binder in ceiling board manufacturing. The depulped bread fruit seed was carbonized for 2 h at a temperature of 500°C. The experimental design was set up using the Design Expert software. A total of 30 experimental tests were developed for four parameters and three responses. The parameters are carbonized bread fruit seed coat/recycled Low Density Polyethylene mass ratio (filler-binder mass ratio), compaction time, compaction temperature and compaction pressure while the respo

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2

Hong, Moon-Hi, In-kyu Kim, and Hye-Jeong Yun. "Effect of Inorganic Filler Addition on Non-Combustible and Mechanical Properties of Color Coated Steel Sheets." Korean Journal of Metals and Materials 58, no. 11 (2020): 768–75. http://dx.doi.org/10.3365/kjmm.2020.58.11.768.

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Recent large-scale fires in buildings and logistic warehouses have become a major social issue, involving both property loss and multiple casualties. To make color coated steel sheets non-combustible and/or have anti-fire properties, various ways of optimizing manufacturing parameters have been investigated for outer, inner, roof and ceiling panels. In the present study, the effect of inorganic filler content and size on the non-combustible and mechanical properties of color coated steel sheets has been investigated using samples prepared as pre-painted coating materials. Both salt spray corro

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Bootkul, Duangkhae, and Saweat Intarasiri. "Fire Retardation Mechanism of PVC Composite Filled with White Rice Husk Ash for Ceiling Board Applications." Materials Science Forum 890 (March 2017): 36–39. http://dx.doi.org/10.4028/www.scientific.net/msf.890.36.

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The rising concern towards environmental issue underscores the “greenproducts” based on natural resources for a wide range of applications. Theseefforts include white rice husk ash (WRHA) considering as an alternative rawmaterial for lignocellulosic filler in green composite. We present the propertiesevaluation of composite WRHA dispersing into polyvinyl-chloride (PVC) with di-isononyl-phthalate(DINP) as compatibilizing agent by compression molding method. The XRD analysisshows typical main peak of silica crystalline, the strengthening materials asreinforcement within the composite structure.

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4

Mikulica, Karel, Iveta Hájková, and Adam Hubáček. "Cement Based Heat-Insulating Materials for Use in Floor Constructions." Materials Science Forum 865 (August 2016): 224–28. http://dx.doi.org/10.4028/www.scientific.net/msf.865.224.

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Many architects, designers and builders struggle with the ongoing problem of how to fill the space between the load bearing foundations / ceiling land the flooring structure in the easiest and cheapest way while still retaining the optimum heating and sound insulating properties. In this age of hi-tech and plentiful amounts of construction materials, it is very difficult to focus on the market. On paper, very similar products from natural or artificially produced materials can be delivered to the construction site in a hardened state, most frequently in the form of boards or granulate or produ

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5

Janssen, Rob, Ir L. Douven, and H. K. van Dijk. "Thermally Conductive (TC) Plastics in LED Lamps." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2010, DPC (2010): 001514–39. http://dx.doi.org/10.4071/2010dpc-wa41.

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In section 1, an assessment is made of the typical thermal conductivities attainable in a TC-plastic followed by an examination of the trade-off between increased thermal conductivity and decreased toughness caused by increasing filler load of such a TC-plastic. Having established that currently there is a ceiling conductivity of around 25 W/mK for TC-plastics, i.e., well below the 100 W/mK TC level of metals, subsequently a basic analysis is provided on the suitability of materials with such moderate TC-levels in metal replacement. For this purpose, the ideal case of a unidirectional (1D) hea

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6

Pourali, Atefeh, Rajesh P. Dhakal, Gregory MacRae, and Ali Sahin Tasligedik. "Fully Floating Suspended Ceiling System: Experimental Evaluation of Structural Feasibility and Challenges." Earthquake Spectra 33, no. 4 (2017): 1627–54. http://dx.doi.org/10.1193/092916eqs163m.

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Full scale shake table testing is conducted on a novel type of suspended ceiling called fully floating ceiling system, which is freely hung from the floor above lacking any lateral bracing and connections with the perimeters. A gap is provided on all sides of the ceiling. Throughout different tests, a satisfactory agreement between the fully floating ceiling response and simple pendulum theory was demonstrated. When subjected to input motions with significant energy in the floating ceiling's resonant frequency, the horizontal displacement of the ceiling exceeded the gap width resulting in poun

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7

Mironov, Viktor, Mihails Lisicins, and Irina Boiko. "Sandwich Panels Made of Perforated Metal Materials." Solid State Phenomena 320 (June 30, 2021): 155–60. http://dx.doi.org/10.4028/www.scientific.net/ssp.320.155.

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Nowadays, the growing attention has focused on the sandwich-structured composites (panels), especially on those, which are environmentally friendly. The sandwich panel is a special type of the composites made of at least three layers: a core and a skin-layer bonded to each side. The aim of this paper is to investigate the possibility of using of perforated metallic materials for producing sandwich panels for the different application in the civil engineering. By using the perforated metallic materials in combination with different core materials or by using the perforated metallic material as

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8

MacDonald, L., A. Hosseininaveh Ahmadabadian, and S. Robson. "Photogrammetric Analysis of a Heritage Ceiling." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-5 (June 6, 2014): 379–83. http://dx.doi.org/10.5194/isprsarchives-xl-5-379-2014.

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Conservation of the painted ceiling at the historic Hampton Court Palace requires the condition of the ceiling to be monitored for signs of formation of cracks and flakes in the surface. Miniature monochrome cameras and LED lights were mounted on a horizontal bar, and raised by a telescopic mast to 60 cm below the ceiling. Images from the cameras were captured simultaneously by purposedeveloped software in a laptop computer at floor level. A series of image pairs was acquired at each location, rotating the mast between each pair. Images were enhanced in local contrast by a modified Wallis filt

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9

Hope, David, and Dan Milholl. "A Three-Dimensional UltrasonicAnemometer to Measure the Performance of Clean Zone Air Delivery Systems." Journal of the IEST 36, no. 6 (1993): 32–40. http://dx.doi.org/10.17764/jiet.2.36.6.r05767v61tt13068.

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The three-dimensional ultrasonic anemometer (3DUA) is an instrument that can measure airflow velocities in three axes simultaneously. From the data gathered, airflow direction and air tubulence intensity may be determined. Using a propietary software package, results are available immediately on-line, in either a tabular or graphic format. This instrument was initially chosen to evaluate the performance of a new cleanroom ceiling system that had integrated the lighting and sprinklers within the filter support grid. Additional work was later performed to evaluate the impact of a membrane ceilin

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10

Zeleke, Yerdawu, and Gideon K. Rotich. "Design and Development of False Ceiling Board Using Polyvinyl Acetate (PVAc) Composite Reinforced with False Banana Fibres and Filled with Sawdust." International Journal of Polymer Science 2021 (April 19, 2021): 1–10. http://dx.doi.org/10.1155/2021/5542329.

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This work deals with design and development of false ceiling board from polyvinyl-acetate (PVAc) composite reinforced with false banana fibres and filled with sawdust. The aim was to develop a light weight and good strength performance false ceiling board using raw materials that are fully biodegradable including sawdust, thus solving the problem of its disposal. The false banana fibres were characterized for its tensile strength, elongation, and moisture content since these parameters affect the composite properties. Hand lay-up method combined with compression molding followed by curing was

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Gui, Fu-kun, and Sheng-chao Jiang. "Numerical Simulation of Liquid Sloshing Problem under Resonant Excitation." Advances in Mechanical Engineering 6 (January 1, 2014): 834657. http://dx.doi.org/10.1155/2014/834657.

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Numerical simulations were conducted to investigate the fluid resonance in partially filled rectangular tank based on the OpenFOAM package of viscous fluid model. The numerical model was validated by the available theoretical, numerical, and experimental data. The study was mainly focused on the large amplitude sloshing motion and the corresponding impact force around the resonant condition. It was found that, for the 2D situation, the double pressure peaks happened near to the side walls around the still water level. And they were corresponding to the local free surface rising up and set-down

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Sahabuddin, Mohd Firrdhaus Mohd, and Stirling Howieson. "Improving indoor air quality using dynamic insulation and activated carbon in an air permeable ceiling." Building Services Engineering Research and Technology 41, no. 4 (2019): 441–53. http://dx.doi.org/10.1177/0143624419872390.

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Indoor air pollution has proven negative impacts on the urban population in many developing countries. In Kuala Lumpur, high-rise housing programmes are not addressing IAQ and thermal comfort. As household incomes rise, residents are resorting to retro-fitting wall mounted split, air conditioning units; a strategy that is neither cost nor carbon effective. This paper reports on the results of computer modelling in conjunction with scale model trials (1:5) of a ‘Dynamic-Hybrid Air Permeable Ceiling’ (DHAPC) designed to filter, cool and dehumidify, the incoming air mass. This filter membrane, wh

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13

Jána, Tomáš, and František Wald. "Reduction of Connection Resistance During Veselí Fire Tests." Journal of Structural Fire Engineering 6, no. 1 (2015): 21–28. http://dx.doi.org/10.1260/2040-2317.6.1.21.

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The paper is focused to the temperature distribution in the reverse channel connections to concrete filled tubular column during two fire tests on an experimental building in Veselí nad Lužnicí. Temperatures of connections without fire protection as well as fire protected connections were investigated. The connected beams were without fire protection which allows to take into account a membrane action of a composite ceiling without fire resistance reduction of the connections.

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14

Zhang, Xuequn, Shiqiang Zhu, Zhi Wang, and Yuehua Li. "Hybrid visual natural landmark–based localization for indoor mobile robots." International Journal of Advanced Robotic Systems 15, no. 6 (2018): 172988141881014. http://dx.doi.org/10.1177/1729881418810143.

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Localization is a crucial part of autonomous moving for the indoor mobile robot. The natural features of the ceiling and surrounding environment can serve for position estimation. Based on these natural features, a hybrid visual natural landmarks–based localization method is proposed. We combine the landmarks-based positioning with ceiling-based visual odometry. During the visual odometry, the orientation is computed from the parallel features between the adjacent frames. The position is calculated from the corresponding point features in the two consecutive images using the perspective-n-poin

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Lane-Serff, G. F., and S. D. Sandbach. "Emptying non-adiabatic filling boxes: the effects of heat transfers on the fluid dynamics of natural ventilation." Journal of Fluid Mechanics 701 (May 23, 2012): 386–406. http://dx.doi.org/10.1017/jfm.2012.164.

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AbstractA model for steady flow in a ventilated space containing a heat source is developed, taking account of the main heat transfers at the upper and lower boundaries. The space has an opening at low level, allowing cool ambient air to enter the space, and an opening near the ceiling, allowing warm air to leave the space. The flow is driven by the temperature contrast between the air inside and outside the space (natural ventilation). Conductive heat transfer through the ceiling and radiant heat transfer from the ceiling to the floor are incorporated into the model, to investigate how these

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Keprdová, Šárka, and Klára Křížová. "Application of Alternative Fillers in the Cement-Bonded Particleboards Structure." Advanced Materials Research 897 (February 2014): 319–22. http://dx.doi.org/10.4028/www.scientific.net/amr.897.319.

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Cement-bonded particleboards merge the good properties of wood and cement; they are board materials with properties which are pre-determined for use in many different cases in the case of construction of walls and partition walls, lower ceilings, facades, floors, etc. The disadvantage of the cement-bonded particleboards is the relatively high price which is mainly derived from the price of input materials. The main component creating the filler for cement-bonded particleboards is wood. Wooden chips are produced from tree trunks of cut trees which mean that, first of all, it is necessary to pro

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17

Bajno, Dariusz, Agnieszka Grzybowska, and Rafał Tews. "Unconscious decisions causing a failure condition of the 19th century brick ceiling." MATEC Web of Conferences 174 (2018): 03014. http://dx.doi.org/10.1051/matecconf/201817403014.

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The article describes a hazard caused by deformation of a brick vault located under the dungeons of the gate tower of Zamek Górny in Opole at the turn of the 13th and the 14th centuries, which was used as a school building until 2017. The hazard identified in 2013 was found on the ground level of the building in a communication route of the heavy traffic load. Visual inspections and tests have demonstrated that the existing situation was caused by civil works performed at the dungeon level nearly 6 years earlier due to an unconsidered decision on removing debris and a backfill which filled ent

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18

Lymperi, Stefania, Vasiliki Taraslia, Ioannis N. Tsatsoulis, et al. "Dental Stem Cell Migration on Pulp Ceiling Cavities Filled with MTA, Dentin Chips, or Bio-Oss." BioMed Research International 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/189872.

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MTA, Bio-Oss, and dentin chips have been successfully used in endodontics. The aim of this study was to assess the adhesion and migration of dental stem cells on human pulp ceiling cavities filled with these endodontic materials in an experimental model, which mimics the clinical conditions of regenerative endodontics. Cavities were formed, by a homemade mold, on untouched third molars, filled with endodontic materials, and observed with electron microscopy. Cells were seeded on cavities’ surface and their morphology and number were analysed. The phenomenon of tropism was assessed in a migrati

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Rusdinar, Angga, Jungmin Kim, Junha Lee, and Sungshin Kim. "Implementation of real-time positioning system using extended Kalman filter and artificial landmark on ceiling." Journal of Mechanical Science and Technology 26, no. 3 (2012): 949–58. http://dx.doi.org/10.1007/s12206-011-1251-9.

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Sadjadi, Reza, and Benjamin Liu. "Supply Plenum and Airflow Uniformity in Cleanrooms." Journal of the IEST 34, no. 2 (1991): 56–60. http://dx.doi.org/10.17764/jiet.2.34.2.5r1742j3vg73n731.

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The uniformity of airflow distribution in a cleanroom has been studied as a function of supply plenum geometry. The flow uniformity is measured experimentally by means of a hot-wire anemometer mounted at the end of a mechanical arm attached to an X-Y table. In addition, a numerical simulation procedure has been developed to calculate the flow velocity below the ceiling filter by taking into account the influence of supply plenum geometry. In the specific system studied, the major cause of flow non-uniformity is the turning of the flow at the end of the supply plenum and the impingement of flow

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Rahman, M. M., Hakan Öztop, R. Saidur, S. Mekhilef, and Khaled Al-Salem. "Unsteady mixed convection in a porous media filled lid-driven cavity heated by a semi-circular heaters." Thermal Science 19, no. 5 (2015): 1761–68. http://dx.doi.org/10.2298/tsci130725098r.

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A computational study has been performed on natural convection heat transfer and fluid flow in a porous media filled enclosure with semi-circular heaters by using finite element method. The ceiling of the cavity moves with a constant velocity and it is insulated. Temperature of vertical walls is lower than that of heaters. Results are presented via streamlines, isotherms, average Nusselt numbers and cross sectional velocity for different governing parameters such as Richardson number, Darcy number and dimensionless time. It is observed that both circulation of the flow and heat transfer is str

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Rojas, Edward O., Natalie Glass, Jessell Owens, et al. "Performance of the PROMIS in Patients Undergoing 3 Common Elbow Procedures." Orthopaedic Journal of Sports Medicine 7, no. 6 (2019): 232596711985259. http://dx.doi.org/10.1177/2325967119852595.

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Background: Ulnar collateral ligament (UCL) reconstruction, distal biceps tendon repair, and elbow arthroscopic surgery are common elbow procedures performed in active patients. Hypothesis: We hypothesized (1) good to excellent correlation between Patient-Reported Outcomes Measurement Information System (PROMIS) instruments and traditional orthopaedic upper extremity patient-reported outcome (PRO) measures; (2) that PROMIS instruments would demonstrate ceiling effects; and (3) that the PROMIS physical function computer adaptive test (PF CAT) would demonstrate a low question burden compared wit

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Petráš, Dušan, Michal Krajčík, Jozef Bugáň, and Emília Ďurišová. "Indoor Environment and Energy Performance of Office Buildings Equipped with a Low Temperature Heating / High Temperature Cooling System." Advanced Materials Research 899 (February 2014): 36–41. http://dx.doi.org/10.4028/www.scientific.net/amr.899.36.

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Energy performance and indoor environment were investigated in two modern office buildings equipped by a low temperature heating and high temperature cooling system. Both buildings have the facade made of glass. In the first building, radiant panels are suspended under the ceiling in order to create comfortable conditions, natural gas boilers are the installed in order to generate heat and chillers are used to generate cool. The second building has heat pumps installed to provide the building with heat/cool and capillary pipes are embedded in the plaster on the ceiling surface to emit the heat

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Granström, Hannah, Anna Langborg, Anne F. Mannion, and Eva Rasmussen-Barr. "Cross-cultural adaption and validation of the Swedish version of the Core Outcome Measures Index for low-back pain." European Spine Journal 29, no. 6 (2020): 1445–52. http://dx.doi.org/10.1007/s00586-019-06271-z.

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Abstract Purpose There is a wide selection of instruments and questionnaires available, but many are time consuming in their administration, for patients, practitioners and researchers alike. The Core Outcome Measures Index (COMI) is a short, self-administrated, multidimensional instrument translated into several languages that covers five domains recommended in the assessment of outcome in patients with low-back pain. The purpose of this study was to cross-culturally adapt the COMI from English to Swedish and to test the face and construct validity and reproducibility of its results in patien

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MENDES, NOUGLAS VELOSO BARBOSA, FRANCISCO XAVIER DE SOUZA, ADROALDO GUIMARÃES ROSSETTI, WILLIAM NATALE, and MÁRCIO CLEBER DE MEDEIROS CORRÊA. "AGROCHEMICALS AND STEM CUTTING TYPES FOR PLANTLET PRODUCTION OF Spondias sp." Revista Caatinga 32, no. 4 (2019): 1104–10. http://dx.doi.org/10.1590/1983-21252019v32n427rc.

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ABSTRACT Umbu-caja (Spondias sp.) is a fruit tree native to the Northeast region of Brazil, which is grown because of its highly valuable fruits for fruit processing industries. The objective of this work was to evaluate the effect of agrochemical applications and cutting types on the rooting and development of Spondias sp. plantlets. The experiment was conducted at the experimental field of the Embrapa Tropical Agroindustry, in Pacajus, CE, Brazil. A randomize block experimental design was used, with five treatments - control (T1); cuttings with two lesions at the base (CL) + rooting gel (RG)

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Rodrigues, Luis, Mónica Figueiredo, and Luis Nero Alves. "Optimized Analog Multi-Band Carrierless Amplitude and Phase Modulation for Visible Light Communication-Based Internet of Things Systems." Sensors 21, no. 7 (2021): 2537. http://dx.doi.org/10.3390/s21072537.

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This paper presents a multi-user Visible Light Communication (VLC)-based Internet of Things (IoT) system using multi band-Carrierless Amplitude and Phase (m-CAP) modulation for IoT applications. The proposed system uses a digital m-CAP modulator embedded in a ceiling LED light fixture and analog receivers, aiming at low-cost, low-power, and small-sized IoT devices. The performance was evaluated in terms of the filtering stage design and the usage of guard bands. Different pairs of emitter and receiver filters were considered. While Bessel and Butterworth analog filters were tested in the analo

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Rosato, Rosalba, Silvia Testa, Antonio Bertolotto, et al. "eMSQOL-29: Prospective validation of the abbreviated, electronic version of MSQOL-54." Multiple Sclerosis Journal 25, no. 6 (2018): 856–66. http://dx.doi.org/10.1177/1352458518774935.

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Background: We recently devised a shortened version of the 54-item Multiple Sclerosis Quality of Life (MSQOL-54) in paper (MSQOL-29, consisting of 25 items forming 7 subscales and 4 single items, and one filter question for 3 ‘sexual function’ items) and electronic format (eMSQOL-29). Objectives: To prospectively assess eMSQOL-29 psychometric properties, acceptability/equivalence versus MSQOL-29. Methods: Multiple sclerosis (MS) patients ( n = 623; Expanded Disability Status Scale (EDSS) range 0.0–9.0) completed eMSQOL-29, Hospital Anxiety and Depression Scale, Functional Assessment of MS (FAM

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Welc, Fabian, Radosław Mieszkowski, Lawrence B. Conyers, Janusz Budziszewski, and Artur Jedynak. "Reading of Ground-Penetrating Radar (GPR) Images of Prehistoric Flint Mine; Case Study from Krzemionki Opatowskie Archaeological Site In Central Poland." Studia Quaternaria 33, no. 2 (2016): 117–30. http://dx.doi.org/10.1515/squa-2016-0012.

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Abstract Geophysical surveys conducted in order to map tunnels and vertical shafts at the Neolithic chert mining field Krzemionki used a ground-penetrating radar(GPR to test hypotheses regarding orientation, depth and subsurface complexity of these voids.Using two-dimensional reflection profiles the vertical shafts, now mostly filled with lithic debris, were easily visible. Amplitude mapping visualized debris at shaft margins as well as a collapsed material inside the voids. Some shallower horizontal tunnels were also visible as sub-horizontal planar reflections generated from both ceiling and

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Koivunen, Kirsi, Harri Sintonen, and Hannele Lukkarinen. "Properties of the 15D and the Nottingham Health Profile questionnaires in patients with lower limb atherosclerotic disease." International Journal of Technology Assessment in Health Care 23, no. 3 (2007): 385–91. http://dx.doi.org/10.1017/s0266462307070444.

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Objectives:The aim of this study was to compare the generic health-related quality of life (HRQoL) instruments, the 15D and the Nottingham Health Profile (NHP), in terms of feasibility, cross-sectional construct validity, discriminatory power, and responsiveness to the change in patients with lower limb atherosclerosis disease (LLAD).Methods:Patients who were treated conservatively (64 patients), scheduled for endovascular treatment (85 patients), or for elective surgery (31 patients) filled in the NHP and the 15D questionnaires before treatment and 12 months after. The methods of analysis inc

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EVON, Philippe, Justine Vinet, Matthieu Rigal, Laurent Labonne, Virginie Vandenbossche, and Luc Rigal. "New insulation fiberboards from sunflower cake with improved thermal and mechanical properties." Journal of Agricultural Studies 3, no. 2 (2015): 194. http://dx.doi.org/10.5296/jas.v3i2.7738.

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New thermal insulation fiberboards were manufactured by compression molding from a cake generated during the sunflower biorefinery. Fiberboards were cohesive mixtures of a natural binder and lignocellulosic fibers from sunflower cake. The natural binder ensured the board cohesion, and fibers acted as reinforcing fillers. The influence of molding conditions, i.e. binder type and binder content, on board density, mechanical and heat insulation properties was examined. The medium-density board containing 20% starch-based binder was a good compromise between mechanical and heat insulation properti

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Banurea, Rahmadhani, and Mulkan Iskandar Nasution. "THE USE OF PALM OIL TRUNK POWDER AS FILLERS IN THE MAKING OF GYPSUM CEILING SHEETS WITH POLYURETHANE BINDER." FISITEK : Jurnal Ilmu Fisika dan Teknologi 3, no. 1 (2019): 36. http://dx.doi.org/10.30821/fisitek.v3i1.5512.

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Leung, Ying-Ying, May-Ee Png, Hwee-Lin Wee, and Julian Thumboo. "Comparison of EuroQol-5D and Short Form-6D Utility Scores in Multiethnic Asian Patients with Psoriatic Arthritis: A Cross-sectional Study." Journal of Rheumatology 40, no. 6 (2013): 859–65. http://dx.doi.org/10.3899/jrheum.120782.

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Objective.To compare EuroQol-5D (EQ-5D) and Short Form-6D (SF-6D) utility scores in multiethnic Asian patients with psoriatic arthritis (PsA).Methods.Consecutive patients fulfilling the Classification Criteria for Psoriatic Arthritis attending a rheumatology outpatient clinic were recruited and completed the EQ-5D and SF-6D questionnaires. Comparisons were performed by score distribution, mean, median, and the Outcome Measures in Rheumatology filter: i.e., truth, discrimination, and feasibility.Results.Eighty-six patients were enrolled (69 English-speaking and 17 Chinese-speaking; male:female

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Jewtoukoff, Valérian, Riwal Plougonven, Albert Hertzog, Chris Snyder, and Glen Romine. "On the Prediction of Stratospheric Balloon Trajectories: Improving Winds with Mesoscale Simulations." Journal of Atmospheric and Oceanic Technology 33, no. 8 (2016): 1629–47. http://dx.doi.org/10.1175/jtech-d-15-0110.1.

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AbstractSafety compliance issues for operational studies of the atmosphere with balloons require quantifying risks associated with descent and developing strategies to reduce the uncertainties at the location of the touchdown point. Trajectory forecasts are typically computed from weather forecasts produced by an operational center, for example, the European Centre for Medium-Range Weather Forecasts. This study uses past experiments to investigate strategies for improving these forecasts. Trajectories for open stratospheric balloon (OSB) short-term flights are computed using mesoscale simulati

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Convery, Frank J. "Carbon-reducing innovation as the essential policy frontier – towards finding the ways that work." Environment and Development Economics 26, no. 3 (2021): 261–80. http://dx.doi.org/10.1017/s1355770x20000467.

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AbstractFinding the ways that work to deliver the innovation needed should be given parity of esteem with getting the prices right as a focus of the economics profession and policy systems. Learn from experience as regards carbon pricing and carbon-reducing innovation; insights from the latter coming mainly from the US, China and Europe; demographically relatively small countries – Denmark (wind) and Australia (solar PV) – can make outsize contributions. A carbon price ceiling is too low to drive innovation; generating carbon-reducing innovation requires that it be explicitly recognized as a p

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Rusdinar, Angga, and Sungshin Kim. "Vision-Based Indoor Localization Using Artificial Landmarks and Natural Features on the Ceiling with Optical Flow and a Kalman Filter." International Journal of Fuzzy Logic and Intelligent Systems 13, no. 2 (2013): 133–39. http://dx.doi.org/10.5391/ijfis.2013.13.2.133.

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Waksman, Renata Dejtiar, Renato Melli Carrera, Erica Santos, Sulim Abramovici, and Cláudio Schvartsman. "Morbidity due trauma in children of the community of Paraisopolis, São Paulo, Brazil." Einstein (São Paulo) 12, no. 1 (2014): 1–5. http://dx.doi.org/10.1590/s1679-45082014ao2434.

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Objective : To identify the factors that determine unintentional injuries in children living in the community of Paraisopolis, in the city of São Paulo, Brazil. Methods : A cross-sectional and non-controlled study. Data collected during 4 consecutive months through questionnaires filled out for the Einstein Program in Paraisopolis Community included identification of the patient and his/her family, scholarity level, housing conditions, storage of hazardous products, access to the streets and concrete slab ceilings, supervision, and trauma mechanism involved. The observed data were treated as a

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Tomii, R., B. Ogawa, and H. Nagashima. "59 IN VITRO DEVELOPMENT OF FELINE CLONED EMBRYOS RECONSTRUCTED WITH PREADIPOCYTES." Reproduction, Fertility and Development 20, no. 1 (2008): 110. http://dx.doi.org/10.1071/rdv20n1ab59.

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The technique of somatic cell nuclear transfer (NT) in domestic cats is expected to contribute to the conservation of wildcats, for which extinction is a concern. In this study, we examined in vitro developmental ability of cloned embryos produced using the preadipocytes of domestic cats as nuclear donors. Primary cultures of preadipocytes were established as reported previously (Yagi et al. 2004 Biochem. Biophys. Res. Commun. 321, 967–974). Briefly, fat tissue (2–3 g) was excised from an adult female cat and digested using 0.1% collagenase for 1 h at 37�C followed by centrifugation. Only matu

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Taylor, William J., David Redden, Nicola Dalbeth, et al. "Application of the OMERACT Filter to Measures of Core Outcome Domains in Recent Clinical Studies of Acute Gout." Journal of Rheumatology 41, no. 3 (2014): 574–80. http://dx.doi.org/10.3899/jrheum.131245.

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Objective.To determine the extent to which instruments that measure core outcome domains in acute gout fulfill the Outcome Measures in Rheumatology (OMERACT) filter requirements of truth, discrimination, and feasibility.Methods.Patient-level data from 4 randomized controlled trials of agents designed to treat acute gout and 1 observational study of acute gout were analyzed. For each available measure, construct validity, test-retest reliability, within-group change using effect size, between-group change using the Kruskall-Wallis statistic, and repeated measures generalized estimating equation

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Díaz-Franulic, Ignacio, Romina V. Sepúlveda, Nieves Navarro-Quezada, Fernando González-Nilo, and David Naranjo. "Pore dimensions and the role of occupancy in unitary conductance of Shaker K channels." Journal of General Physiology 146, no. 2 (2015): 133–46. http://dx.doi.org/10.1085/jgp.201411353.

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K channels mediate the selective passage of K+ across the plasma membrane by means of intimate interactions with ions at the pore selectivity filter located near the external face. Despite high conservation of the selectivity filter, the K+ transport properties of different K channels vary widely, with the unitary conductance spanning a range of over two orders of magnitude. Mutation of Pro475, a residue located at the cytoplasmic entrance of the pore of the small-intermediate conductance K channel Shaker (Pro475Asp (P475D) or Pro475Gln (P475Q)), increases Shaker’s reported ∼20-pS conductance

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Negri, Brino Ruy, Marco César Prado Soares, Antonio Carlos Luz Lisboa, and Julio Roberto Bartoli. "Low-Cost Solar Heating Reservoir Manufactured by Double-Coating a Water Tank with Polymeric Materials." Materials Proceedings 2, no. 1 (2020): 14. http://dx.doi.org/10.3390/ciwc2020-06784.

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One of the main needs of the modern society is the availability of low-cost energy sources, and solar energy arises as an interesting alternative for both the generation of heat and electricity. In this work, a low-cost solar energy reservoir is proposed for domestic water heating. It is comprised of a thermoplastic (polyethylene) water tank thermally insulated by means of two different polymeric coatings: an acrylonitrile butadiene rubber foam, NBR, and a metalized polyester layer. The solar system also contains a flat collector based on a ceiling panel made of poly(vinyl chloride) (PVC) coat

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Mun-Li, Hong, and Lindsay Kleeman. "Ultrasonic classification and location of 3D room features using maximum likelihood estimation - Part I." Robotica 15, no. 5 (1997): 483–91. http://dx.doi.org/10.1017/s0263574797000581.

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Current mobile robot ultrasonic localisation techniques use sensor systems which rely on features in a horizontal plane. The implicit assumption is that the room boundary on the horizontal plane is not obstructed by objects such as furniture. This assumption is often not realistic and restricts the versatility and portability of these systems. The solution proposed in this paper is the provision of sensing flexibility to use other 3D room boundaries (e.g. ceiling-wall intersections) as 3D natural beacons. We propose a 3D ultrasonic sensor array that uses a Maximum Likelihood Estimator to match

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Purkis, W., C. Mueller, M. Intorp, and H. Seidel. "The Influence of Cigarette Designs and Smoking Regimes on Vapour Phase Yields." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 24, no. 1 (2010): 34–46. http://dx.doi.org/10.2478/cttr-2013-0879.

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AbstractCigarettes with similar design features but with either cellulose acetate or dual carbon filters were made at 1-mg and 13-mg “tar” levels, as determined under the ISO smoking procedure. Products were smoked under the ISO, Massachusetts and Canadian smoking regimes to provide per-cigarette and per-puff yields of twelve vapour phase (VP) smoke components. The yields generated at the lit end of the cigarette and the significant yield reductions caused by filter ventilation, selective (carbon) adsorption, tobacco rod ventilation and diffusion were estimated in a modelling approach. For a “

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Brasel, T. L., D. R. Douglas, S. C. Wilson, and D. C. Straus. "Detection of Airborne Stachybotrys chartarum Macrocyclic Trichothecene Mycotoxins on Particulates Smaller than Conidia." Applied and Environmental Microbiology 71, no. 1 (2005): 114–22. http://dx.doi.org/10.1128/aem.71.1.114-122.2005.

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ABSTRACT Highly respirable particles (diameter, <1 μm) constitute the majority of particulate matter found in indoor air. It is hypothesized that these particles serve as carriers for toxic compounds, specifically the compounds produced by molds in water-damaged buildings. The presence of airborne Stachybotrys chartarum trichothecene mycotoxins on particles smaller than conidia (e.g., fungal fragments) was therefore investigated. Cellulose ceiling tiles with confluent Stachybotrys growth were placed in gas-drying containers through which filtered air was passed. Exiting particulates were co

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Klasan, A., ES Krottenthaler, M. Luger, R. Hochgatterer, C. Schopper, and T. Gotterbarm. "Not all questions are created equal – the weight of the Oxford Knee Score Questions." Orthopaedic Journal of Sports Medicine 9, no. 6_suppl2 (2021): 2325967121S0018. http://dx.doi.org/10.1177/2325967121s00181.

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Introduction: The Oxford Knee Score (OKS) has been designed for patients with knee osteoarthritis. It uses 12 questions to give an objective patient reported outcome measure. It is one of the most used questionnaires in the orthopaedic community. Each question has the same numeric value, 0-4, giving a maximal number of 48. The OKS has been observed to have a significant ceiling effect, especially when distinguishing slight postoperative differences between implant and alignment philosophies. Hypothesis: We hypothesized that each question in fact does not have the same weight for each patient,

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Andrade, L. F. D., and V. J. M. Cardoso. "Does thermal time for germination vary among populations of a tree legume (Peltophorum dubium)?" Brazilian Journal of Biology 76, no. 3 (2016): 592–99. http://dx.doi.org/10.1590/1519-6984.18714.

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Abstract Few works report the use of degree-days (DD) – used in crops to predict events and schedule management activities – to describe the germination of tropical trees. The cardinal temperatures (base, optimum and ceiling temperature) for germination of the species may vary depending on the seed provenance. Peltophorum dubium (Spreng.) Taub. is an early successional leguminous tree widely distributed in South America, often occurring as cultivated or naturalized trees, thus considered to be a good example for testing DD model in tree species. The main objective of this study was to describe

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Carpenter, G. A. "Climate control systems and equipment — building design, ventilation and air cleaning." BSAP Occasional Publication 11 (January 1987): 67–74. http://dx.doi.org/10.1017/s0263967x00001786.

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AbstractThe design of a building affects control of climate in several ways. Its thermal insulation can be impaired by inadequate thickness of insulating material, faulty installation, settling, condensation and destruction by vermin and insects. Also its design interacts with the ventilation system which must take into account not only location, size and shape of the building, but also details such as air leakage, deflection of air jets by obstructions and dimensional changes such as occur in a timber structure. In contrast, a smooth or rough surface can respectively enhance or impede the thr

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Dauvilliers, Yves, Elisa Evangelista, Lucie Barateau, et al. "Measurement of symptoms in idiopathic hypersomnia." Neurology 92, no. 15 (2019): e1754-e1762. http://dx.doi.org/10.1212/wnl.0000000000007264.

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ObjectiveTo validate the Idiopathic Hypersomnia Severity Scale (IIHSS), a self-report measure of hypersomnolence symptoms, consequences, and responsiveness to treatment.MethodsThe 14-item IHSS (developed and validated by sleep experts with patients' feedback) was filled in by 218 participants (2.3% missing data). Among the 210 participants who fully completed the IHSS, there were 57 untreated and 43 treated patients with idiopathic hypersomnia (IH) aged 16 years or older, 37 untreated patients with narcolepsy type 1 (NT1), and 73 controls without sleepiness. IHSS psychometric properties, discr

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Jalenques, Isabelle, Chloé Rachez, Urbain Tauveron Jalenques, et al. "Cross-cultural evaluation of the French version of the Delusion Assessment Scale (DAS) and Psychotic Depression Assessment Scale (PDAS)." PLOS ONE 16, no. 4 (2021): e0250492. http://dx.doi.org/10.1371/journal.pone.0250492.

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BackgroundMajor depressive disorder with psychotic features (MDDPsy), compared to nonpsychotic MDD, involves an increased risk of suicide and failure to achieve treatment response. Symptom scales can be useful to assess patients with MDDPsy. The aim of the present study was to validate French versions of the Delusion Assessment Scale (DAS) and Psychotic Depression Assessment Scale (PDAS).MethodsOne hundred patients were included. The scales were filled out by psychiatrists. Data from participants who accepted a second interview were used for inter-judge reliability. The scalability and psychom

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Costen, Nicholas P., Denis M. Parker, and Ian Craw. "Spatial Content and Spatial Quantisation Effects in Face Recognition." Perception 23, no. 2 (1994): 129–46. http://dx.doi.org/10.1068/p230129.

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It has recently become apparent that if face images are degraded by spatial quantisation, or block averaging, there is a nonlinear acceleration of the decline in accuracy of recognition as block size increases. This suggests recognition requires a critical minimum range of object spatial frequencies. Two experiments were performed to clarify the phenomenon. In experiment 1, the speed and accuracy of recognition for six frontoparallel photographs of faces were measured. After familiarisation training sessions, the images were shown for 100 ms with 11, 21, and 42 pixels per face, horizontally me

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Umamaheswar Rao, O., and M. Chinna Eswaraiah. "Screening and evaluation of ethanolic extract from Casuarina equisetifolia inflorescence on isolated chick rectum, frog rectum and frog rectus abdominus muscle for identification of muscarinic and nicotinic receptor’s action." Journal of Drug Delivery and Therapeutics 8, no. 6-s (2018): 9–13. http://dx.doi.org/10.22270/jddt.v8i6-s.2068.

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The present experiments were undertaken to justify the use of an ethanolic extract from inflorescence of Casuarina equisetifolia, Family: Casuarinaceae, influencing the nicotine responses on isolated chick rectum and frog rectum (Smooth Muscles) and frog rectus abdominus muscle (Skeletal Muscle). The isolated tissues were mounted in organ bath filled with physiological solution and was suitably aerated. After equilibration, responses were taken to different doses of nicotine (log doses) till a ceiling response was obtained. A sub-maximal dose of nicotine was selected and responses to this dose

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