Today I set up the numismatic dynamo to start utilizing the iron farm to generate power. The iron is turned into currency using the compactor, which is then input into the numismatic dynamo and converted into power. =================================== This series is based around the 1.12 mod Thermal Expansion, which is a broad tech mod that brings with it ore processing, power generation, item/power transportation, and much more! Download:...
Topics: Youtube, video, Gaming, thermal expansion, thermal expansion 5, thermal expansion 1.12, thermal...
188
188
May 6, 2010
05/10
by
Lewis, R. K.; Norton, J. T
texts
eye 188
favorite 0
comment 0
Thermal expansion measurement of pure sintered carbide specimens
Topics: CARBIDES, EXTENSOMETERS, SINTERING, THERMAL EXPANSION, METAL CARBIDE, THERMAL EXPANSION
Journal of Research of the National Bureau of Standards
Topics: coefficient of thermal expansion, optical interferometry, platinum, platinum-rhodium alloys,...
1,339
1.3K
May 30, 2011
05/11
by
Smart, D. F.; Shea, M. A
texts
eye 1,339
favorite 0
comment 0
The access of charged particles to the earth from space through the geomagnetic field has been of interest since the discovery of the cosmic radiation. The early cosmic ray measurements found that cosmic ray intensity was ordered by the magnetic latitude and the concept of cutoff rigidity was developed. The pioneering work of Stoermer resulted in the theory of particle motion in the geomagnetic field, but the fundamental mathematical equations developed have 'no solution in closed form'. This...
Topics: ANISOTROPIC PLATES, ANISOTROPY, BUCKLING, LAMINATES, THERMAL EXPANSION
129
129
Apr 28, 2019
04/19
by
RagePlaysGames
movies
eye 129
favorite 0
comment 0
Link to YouTube playlist: https://www.youtube.com/playlist?list=PLdfO7XSwwy71aEd6ifFVTPtgCsvWdbtmr Videos created by RagePlaysGames . Rights to the gameplay footage belongs to Mojang.
Topics: Thermal Expansion, 1.12, Surviving, Let's Play, Gaming, YouTube
Journal of Research of the National Bureau of Standards
Topics: Anisotropic crystal, Gr�neisen's constant, interferometer, rutile, thermal expansion
624
624
Jun 18, 2010
06/10
by
Hayashi, N
texts
eye 624
favorite 0
comment 0
Thermal characteristics of pebble bed heater used to reduce stagnation temperature in supersonic wind tunnels
Topics: HEAT TRANSFER, THERMAL EXPANSION, HEATERS, HEATING EQUIPMENT, STAGNATION TEMPERATURE, SUPERSONIC...
Journal of Research of the National Bureau of Standards
Topics: Controlled-gradient vacuum furnace, elevated temperatures, optical comparator, thermal expansion
Journal of Research of the National Bureau of Standards
Topics: cermet, temperature, temperature dependence, elastic, measurement, thermal expansion, resonance...
7
7.0
Apr 18, 2021
04/21
by
Emmanouil Fylladitakis (Zinoberrot)
data
eye 7
favorite 0
comment 0
This is a very simple test file that I am using to calibrate my printer to get perfect dimensional accuracy with any filament roll. I usually print one of these before I use any filament roll and then compensate for its thermal expansion. I am then always getting perfect openings and threads with that particular filament type and color, minimizing any post-processing time. The file is designed so as to minimize filament use. I suggest printing it with three layers/walls, with 10% infill. It...
Topics: 3D Printing Tests, thingiverse, stl, thermal_expansion, calibration, printer_calibration
The aluminum piston Al 11wt% Si alloys SC100, ACA8, A4032 were tested together with A2618-T6 concerning their mechanical properties and their thermal fatigue behavior. The alloy A2618 shows a better elongation to failure and higher yield stress compared to the other alloys by maintaining the low coefficient of thermal expansion (CTE). Thermal fatigue experiments confirmed that the Coffin-Manson equation can be used for life time prediction with the coefficients C P = 0.0385, K P = -0.377...
Topics: high temperature low - cycle – fatigue, plastic strain, tensile test, thermal expansion
265
265
Jul 6, 2010
07/10
by
HUMMEL, D.; REDEKER, G
texts
eye 265
favorite 0
comment 0
BOUNDARY LAYER MEASUREMENTS WERE CARRIED OUT ON A SHARP-EDGED DELTA WING (ASPECT RATIO = 1.0, ANGLE OF INCIDENCE = 20.5) WITH TURBULENT BOUNDARY LAYERS. FROM THE VELOCITIES AT THE OUTER EDGE OF THE BOUNDARY LAYER ON THE UPPER AND THE LOWER SIDE OF THE WING THE BOUND VORTEX LINES IN THE LIFTING SURFACE WERE DETERMINED. A COMPARISON WITH FORMER INVESTIGATIONS CONCERNING LAMINAR BOUNDARY LAYERS SHOWS THE INFLUENCE OF THE STATUS OF THE BOUNDARY LAYER ON VORTEX FORMATION. STUDIES ON THE FLOW...
Topics: LAMINATES, POLYIMIDES, PRINTED CIRCUITS, ELECTRICAL PROPERTIES, THERMAL CYCLING TESTS, THERMAL...
411
411
Jun 20, 2010
06/10
by
Kozhin, V. M
texts
eye 411
favorite 0
comment 0
Sodium chloride crystal as thermal standard for X-ray diffraction analysis of substances at varying temperatures
Topics: CRYSTAL OPTICS, X RAYS, CRYSTAL OPTICS, SODIUM CHLORIDE, THERMAL EXPANSION, X-RAY DIFFRACTION,...
Optical, electronical and structural properties of thin films have been largely reported on literature. On the other hand, thermal properties have received little attention. Here we adopted two different techniques to determine thermal and elastic constants of thin films. The first was the bending beam technique, based on a deflection of a laser beam, used to determine the radius of curvature of the film/substrate composite, allowing extracting the stress of thin films. By making these...
Topics: Coefficient of thermal expansion, Young´s modulus, Poisson´s ratio, stress, hardness.
744
744
Jun 9, 2011
06/11
by
Chao, Lawrence P.; Tumer, Irem Y.; Bell, David G
texts
eye 744
favorite 0
comment 0
This report describes the state of practices of design reviews at NASA and research into what can be done to improve peer review practices. There are many types of reviews at NASA: required and not, formalized and informal, programmatic and technical. Standing project formal reviews such as the Preliminary Design Review and Critical Design Review are a required part of every project and mission development. However, the technical, engineering peer reviews that support teams' work on such...
Topics: FABRICATION, PERFORMANCE TESTS, GIMBALS, PIEZOELECTRIC CERAMICS, THERMAL EXPANSION,...
268
268
May 31, 2011
05/11
by
Grimm, Robert E
texts
eye 268
favorite 0
comment 0
The magnetic lineations discovered by MGS (Mars Global Surveyor) have been considered to be evidence of early plate tectonics on Mars. However, the lineations approximately follow lines of latitude, i.e., small circles. This presents significant geometrical problems for plate-like spreading, particularly at high latitudes. However, the sublatitudinal orientation of the lineations is consistent with meridianal extension and perhaps limited crustal spreading due to a stress event centered near...
Topics: CARBON NANOTUBES, NANOTECHNOLOGY, NANOSTRUCTURE (CHARACTERISTICS), NANOSTRUCTURES (DEVICES),...
312
312
Aug 1, 2010
08/10
by
Snyder, Christopher A.; Maldonado, Jaime J
texts
eye 312
favorite 0
comment 0
A NASA study of the propulsion systems for possible low-risk replacements for the Space Shuttle is presented. Results of preliminary studies to define the USAF two-stage-to-orbit (TSTO) concept to deliver 10,000 pounds to low polar orbit are described. The booster engine module consists of an over/under turbine bypass engines/ramjet engine design for acceleration from takeoff to the staging point of Mach 6.5 and approximately 100,000 feet altitude. Propulsion system performance and weight are...
Topics: ANHYDRIDES, SOLVENTS, TEMPERATURE EFFECTS, DIAMINES, POLYIMIDES, POLYMERIZATION, THERMAL EXPANSION,...
583
583
Jun 13, 2011
06/11
by
MacKay, Rebecca A.; Smith, Stephen W.; Shah, Sandeep R.; Piascik, Robert S
texts
eye 583
favorite 0
comment 0
The shuttle orbiter s reaction control system (RCS) primary thruster serial number 120 was found to contain cracks in the counter bores and relief radius after a chamber repair and rejuvenation was performed in April 2004. Relief radius cracking had been observed in the 1970s and 1980s in seven thrusters prior to flight; however, counter bore cracking had never been seen previously in RCS thrusters. Members of the Materials Super Problem Resolution Team (SPRT) of the NASA Engineering and Safety...
Topics: MECHANICAL PROPERTIES, ION ENGINES, ION OPTICS, ELECTROSTATICS, THERMAL EXPANSION, CARBON,...
416
416
May 22, 2011
05/11
by
Biehl, Larry L
texts
eye 416
favorite 0
comment 0
The data processing analysis and conversion of polarization measurements to polarization parameters from the Sunflower multiband radiometer is presented in this final report. Included is: (1) the actual data analysis; (2) the comparison of the averaging techniques and the percent polarization derived from the original and averaged I, Q, U parameters; (3) the polarizer angles used in conversion; (4) the Matlab files; (5) the relative ground size, field of view location, and view zenith angles,...
Topics: MOLDING MATERIALS, PREFORMS, SILICONE RUBBER, TEMPERATURE EFFECTS, THERMAL EXPANSION, BULK MODULUS,...
416
416
Jul 21, 2010
07/10
by
NON
texts
eye 416
favorite 0
comment 0
Excerpts from a Governmental Investigation concerning Norwegian participation in the European Space Organization (ESA) is presented. The implications and advantages of such a move and a suggestion for the reorganization of Norwegian Aerospace activity is given.
Topics: COMPRESSIBILITY, ELASTOHYDRODYNAMICS, LUBRICANTS, SOLIDIFICATION, TEMPERATURE EFFECTS, EQUATIONS OF...
The micromechanical generalized method of cells model is employed for the prediction of the effective elastic, piezoelectric, dielectric, pyroelectric and thermal-expansion constants of multiphase composites with embedded piezoelectric materials. The predicted effective constants are compared with other micromechanical methods available in the literature and good agreements are obtained.
Topics: NASA Technical Reports Server (NTRS), MICROMECHANICS, PIEZOELECTRICITY, THERMAL EXPANSION,...
Journal of Research of the National Bureau of Standards
Topics: Compressibility, densification, glass, glass transition, liquid, polymer, pressure, PVT, pyrolysis,...
282
282
May 30, 2011
05/11
by
Shirron, Peter; Canavan, Edgar; DiPirro, Michael; Jackson, Michael; King, Todd; Panek, John; Tuttle, Jame
texts
eye 282
favorite 0
comment 0
We present test results of the first adiabatic demagnetization refrigerator (ADR) that can produce continuous cooling at sub-kelvin temperatures. This system uses multiple stages that operate in sequence to cascade heat from a continuous stage up to a heat sink. Continuous operation aids the usual constraints of long hold times and short recycle times that lead to the generally large mass of single-shot ADRs, and allows us to achieve much higher cooling power per unit mass. Our design goal is...
Topics: THERMODYNAMICS, NANOTECHNOLOGY, MOLECULAR DYNAMICS, SURFACE LAYERS, GOLD, THERMAL EXPANSION, FAST...
An approach for synthesizing buckling results and behavior for thin balanced and unbalanced symmetric laminates that are subjected to uniform heating or cooling and fully restrained against thermal expansion or contraction is presented. This approach uses a nondimensional analysis for infinitely long, flexurally anisotropic plates that are subjected to combined mechanical loads and is based on useful nondimensional parameters. In addition, stiffness-weighted laminate thermal-expansion...
Topics: NASA Technical Reports Server (NTRS), ANISOTROPIC PLATES, ANISOTROPY, BUCKLING, LAMINATES, THERMAL...
228
228
May 28, 2011
05/11
by
Johnson, B. Carol; Early, Edward E.; Eplee, Robert E., Jr.; Barnes, Robert A.; Caffrey, Robert T
texts
eye 228
favorite 0
comment 0
The Sea-viewing Wide Field-of-view Sensor (SeaWiFS) was originally calibrated by the instrument's manufacturer, Santa Barbara Research Center (SBRC), in November 1993. In preparation for an August 1997 launch, the SeaWiFS Project and the National Institute of Standards and Technology (NIST) undertook a second calibration of SeaWiFS in January and April 1997 at the facility of the spacecraft integrator, Orbital Sciences Corporation (OSC). This calibration occurred in two phases, the first after...
Topics: CARBON-CARBON COMPOSITES, PISTONS, PISTON ENGINES, INTERNAL COMBUSTION ENGINES, COMPRESSORS,...
Topics: DTIC Archive, Hidnert, Peter, NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD, *DENSITY, *LIQUIDS,...
This is an examination of the open ocean deep water formation process of the Greenland sea and how it is effected by the depth dependent thermal expansion coefficient. It is hypothesized that free convection associated with parcel instability is possible because of the increase of the thermal expansion coefficient with pressure in conjunction with requisite ambient temperature and salinity profiles. Based on the depth dependence of the thermal expansion coefficient, a natural profile model for...
Topics: Oceanography, Depth dependent thermal expansion coefficient, Neutral parcel stability, Deep...
Resulting from a SBIR contract with the Goddard Space Flight Center, Foster-Miller developed a high performance, low cost substrate for printed circuits with a coefficient of thermal expansion (CTE) matched to the surface mounted devices. The commercial product that resulted from the agreement between the two organizations was so successful that Foster-Miller created a spin-off company named Superex, Inc., devoted solely to the promotion of this particular substrate. The contract originated...
Topics: NASA Technical Reports Server (NTRS), PRINTED CIRCUITS, SUBSTRATES, TECHNOLOGY TRANSFER, COST...
Contracting/expanding self-sealing cryogenic tube seals are disclosed which use the different properties of thermal contraction and expansion of selected dissimilar materials in accord with certain design criteria to yield self-tightening seals via sloped-surface sealing. The seals of the subject invention are reusable, simple to assemble, adaptable to a wide variety of cryogenic applications.
Topics: NASA Technical Reports Server (NTRS), CONTRACTION, CRYOGENICS, SELF SEALING, THERMAL EXPANSION,...
Capacitive strain gage and signal conditioning system measures stress-induced strain and cancels thermal expansion strain at temperatures to 1,500 F (815 C). Gage does not significantly restrain or reinforce specimen.
Topics: NASA Technical Reports Server (NTRS), STRAIN GAGES, STRAIN MEASUREMENT, STRESS MEASUREMENT, THERMAL...
364
364
May 31, 2011
05/11
by
Kincaid, Rex K.; Griffith, Michelle; Sykes, Ruth; Sobieszczanski-Sobieski, Jarosla
texts
eye 364
favorite 0
comment 0
In this manuscript we have examined an extension of BCB that encompasses a mix of continuous and quasi-discrete, as well as truly-discrete applications. FVe began by testing two refinements to the discrete version of BCB. The testing of midpoint versus fitness (Tables 1 and 2) proved inconclusive. The testing of discrete normal tails versus standard mutation showed was conclusive and demonstrated that the discrete normal tails are better. Next, we implemented these refinements in a combined...
Topics: BUCKLING, CURVATURE, ANISOTROPIC PLATES, THERMAL EXPANSION, ELASTIC PROPERTIES, LAMINATES, LOADS...
Journal of Research of the National Bureau of Standards
Topics: Intermerometry, light scattering, oxide glasses, polarizability, pressure, refractive index,...
Journal of Research of the National Bureau of Standards
Topics: Activation energy, annealing, germania glass, index of refraction, relaxation times, thermal...
Contracting/expanding self-sealing cryogenic tube seals are disclosed which use the different properties of thermal contraction and expansion of selected dissimilar materials in accord with certain design criteria to yield self-tightening seals via sloped-surface sealing. The seals of the subject invention are reusable, simple to assemble, and adaptable to a wide variety of cryogenic applications.
Topics: NASA Technical Reports Server (NTRS), CONTRACTION, CRYOGENICS, SELF SEALING, THERMAL EXPANSION,...
A casing around a turbine and a casing around discharge nozzles have a concentrically arranged shell portion. The seal contains internal pressure while accommodating eccentric, expansion and axial travel. Arcuate seal segments have one leg sealing against a radial surface extending from the inner shell and the other leg against the outer shell. A linkage guides travel of the segments.
Topics: NASA Technical Reports Server (NTRS), GAS TURBINE ENGINES, THERMAL EXPANSION, SEALS (STOPPERS),...
306
306
Jul 6, 2010
07/10
by
BRENNER, R. R.; CATALA, A.; DATO, S. A
texts
eye 306
favorite 0
comment 0
THE EFFECT OF DIFFERENT FACTORS UPON FATTY ACID DESATURATION IN THE ENDOPLASMIC RETICULUM WAS STUDIED AND COMPARED. THE FACTORS THAT MODIFY THE FATTY ACID DESATURATION ARE: COMPETITION AMONG DIFFERENT FATTY ACIDS, COMPETITION BETWEEN DESATURATION AND TRANSACYLATION OF LIPIDS, ATP, FASTING, CARBOHYDRATES AND PROTEINS IN THE DIET, DIABETES AND INSULIN. BESIDES, IT WAS ALSO FOUND THAT THE DESATURATION OF FATTY ACIDS FOLLOWS A CIRCADIAN RHYTHM.
Topics: FAILURE MODES, METAL BONDING, THERMAL BUCKLING, ELECTRIC WIRE, PERFORMANCE TESTS, THERMAL...
452
452
Jun 26, 2011
06/11
by
Hou, Xi-yun; Tang, Jing-shi; Liu, Li
texts
eye 452
favorite 0
comment 0
The collinear libration point L3 of the sun-earthmoon system is an ideal place for some space missions. Although there has been a great amount of work concerning the applications of the other two collinear libration points L1 and L2, little work has been done about the point L3. In this paper, the dynamics of the libration points was briefly introduced first. Then a way to transfer the spacecraft to the collinear libration point L3 via the invariant manifolds of the other two collinear...
Topics: CARBON FIBERS, EXPONENTS, FIBER COMPOSITES, SILICON CARBIDES, REACTION KINETICS, OXIDATION, THERMAL...
During this period the main area of investigation was concerned with athermalizing laser glass. The effects of composition on the expansion coefficient, the thermal coefficient of the index of refraction, the birefringence and the stress-optical coefficients were studied for this purpose. In summary, it is felt that an athermalized laser system can be produced by counterbalancing the index of refraction changes produced by stress with index changes produced by temperature directly. Systems...
Topics: DTIC Archive, AMERICAN OPTICAL CORP SOUTHBRIDGE MA, *GLASS, *LASERS, *NEODYMIUM COMPOUNDS, OPTICS,...
Improvements were sought in an oxide fiber of a core sheath configuration intended for structural applications at 2000 F (1093 C). Discontinuities in the core were eliminated by using core materials other than pure alumina, and continuous core sheath fibers were produced. In the case of some core materials, the continuous sections were sufficiently long for applications in short fiber composites. Creep at 2000 F (1093 C) was found to be due, in most cases, to breaks in the core, allowing the...
Topics: NASA Technical Reports Server (NTRS), COMPOSITE MATERIALS, CORES, OXIDES, SHEATHS, CREEP...
317
317
May 30, 2011
05/11
by
Frink, Neal T.; Bonhaus, Daryl L.; Vatsa, Veer N.; Bauer, Steven X. S.; Tinetti, Ana F
texts
eye 317
favorite 0
comment 0
A new boundary condition is presented.for simulating the flow over passively porous surfaces. The model builds on the prior work of R.H. Bush to eliminate the need for constructing grid within an underlying plenum, thereby simplifying the numerical modeling of passively porous flow control systems and reducing computation cost. Code experts.for two structured-grid.flow solvers, TLNS3D and CFL3D. and one unstructured solver, USM3Dns, collaborated with an experimental porosity expert to develop...
Topics: YTTRIA-STABILIZED ZIRCONIA, SINGLE CRYSTALS, ZIRCONIUM OXIDES, YTTRIUM OXIDES, HIGH TEMPERATURE,...
Studies and experiments on the use of bimetallic lattice structures for determining and controlling thermal expansion characteristics are discussed.
Topics: NASA Technical Reports Server (NTRS), CRYSTAL LATTICES, METALS, THERMAL EXPANSION, COMPOSITE...
Motor is proposed to convert radiation from sun directly into mechanical energy. Motor utilizes thermal expansion of liquid, heated by sun, as driving force. Unlike most thermally powered systems, it does not require that liquid be converted into vapor.
Topics: NASA Technical Reports Server (NTRS), ENERGY CONVERSION, MOTORS, SOLAR ENERGY, THERMAL EXPANSION,...
Strip of bimetal is shaped as split ring; when properly fabricated from thin sheet, width of strip increases when it is heated. When width of strip increases, outer races are forced apart, thus pressing balls tightly against inner races. Strip applies axial load to bearing, amount of load being function of temperature to which strip is heated.
Topics: NASA Technical Reports Server (NTRS), BALL BEARINGS, BIMETALS, METAL STRIPS, THERMAL EXPANSION,...
Journal of Research of the National Bureau of Standards
Topics: hydrogen, normal, hydrogen, para, pressure, 5 to 70 bar, temperature, 18.8 to 22.2 K, thermal...
Composite structures can be laminated to have very low coefficients of thermal expansion. Such structures are light and strong and have many uses where expansion or contraction with temperature change is undesirable. One application is with instruments that measure thermal expansion.
Topics: NASA Technical Reports Server (NTRS), COMPOSITE MATERIALS, GRAPHITE, LAMINATES, POLYIMIDES, THERMAL...
295
295
Jul 9, 2010
07/10
by
FIGAR, S
texts
eye 295
favorite 0
comment 0
A DESCRIPTION IS GIVEN OF A MECHANICAL HYDRAULIC PLETHYSMOGRAPH FOR THE HAND AND DISTAL FOREARM WITH A SUITABLY SHAPED PLETHYSMOGRAPHIC VESSEL PLACED IN A WATER BATH, WHICH IS AT THE SAME TIME A WATER SUPPLY RESERVOIR WITH A CALIBRATION UNIT. PRACTICALLY LINEAR MECHANICAL INK RECORDING AND A SUITABLE MEANS OF SEALING AND IMMOBILIZING THE EXTREMITY BEING TESTED ARE REPORTED.
Topics: MIXED CRYSTALS, THERMAL EXPANSION, ZINC OXIDES, OXIDES, QUARTZ, ALUMINUM OXIDES, CRYSTALLIZATION,...
A bond coat composition for use in thermal barrier coatings comprises a NiAl--CoCrAlY matrix containing particles of AlN dispersed therein. The bond coat composition is prepared by croymilling NiAl and CoCrAlY in liquid nitrogen.
Topics: NASA Technical Reports Server (NTRS), JOINTS (JUNCTIONS), OXIDATION, THERMAL CONTROL COATINGS,...
Topics: DTIC Archive, LIBRARY OF CONGRESS WASHINGTON DC AEROSPACE TECHNOLOGY DIV, *INFRARED DETECTORS,...
An investigation of Nichrome/tungsten laminar composites showed that intentionally introduced discontinuities, such as perforations through or grooves on the surface of the matrix laminae, improved thermal expansion mismatch damage resistance. It was found that specimens having smooth matrix laminate surfaces were virtually destroyed by delamination in 21 or fewer fast cool cycles in which they were water quenched from 981 C. Specimens having interior matrix laminae with discontinuities and...
Topics: NASA Technical Reports Server (NTRS), DISCONTINUITY, LAMINATES, THERMAL EXPANSION, MISALIGNMENT,...
Thermal analog devices predict thermal expansion and contraction of machine structures subjected to various heat inputs. Analog devices correct positioning of machine tools to compensate for distortion of machine frame.
Topics: NASA Technical Reports Server (NTRS), COILS, ERROR ANALYSIS, HEAT SOURCES, HEAT TRANSFER, THERMAL...
