Mendeley Climate Change Library

22
22

Jul 6, 2019
07/19

by
Debojyoti Chakraborty; Robert Jandl; Stefan Kapeller; Silvio Schueler

texts

#
eye 22

#
favorite 0

#
comment 0

When considering options for adapting forests under climate change, climate is treated as the dominant driver of forest growth, while soil properties are often ignored mainly due to shortage of accurate data. The effects of climate and soil on forest growth may vary due to local adaptation to both climate and soil, and these local adaptations might need to be considered when transferring seed provenances under climate change. Data from 29 provenance trials of Norway spruce (Picea abies (L.)...

Topics: Adaptation, Climate change, Forest growth, Norway spruce, Picea abies, Provenance trials, Seed...

176
176

May 7, 2020
05/20

by
Abdzex_Kuban

texts

#
eye 176

#
favorite 0

#
comment 0

Introduction To Nanoscience

Topics: energy, electron, quantum, electrons, molecular, molecule, equation, molecules, chemical, dna, free...

Initialization of a five-level global baroclinic primitive equation model was examined using real data. Experiments were conducted using a Robert (1965) time frequency filter, Euler backward time integration, and an iterative initialization scheme to determine the effect of each on the generation of inertial-gravity waves resulting from an improper balance between initial mass and wind fields. In addition, a global sigma-surface linear balance equation solution was examined for the purpose of...

Topics: Meteorology, numerical, atmospheric, global, baroclinic, staggered grid, spherical coordinates,...

Journal of Research of the National Bureau of Standards

Topics: Formulas, Riccati's equation, SEAC

Journal of Research of the National Bureau of Standards

Topics: Empirical equation, heat capacity, thermodynamic properties, thorium dioxide

Journal of Research of the National Bureau of Standards

Topics: Definite integrals, Laguerre expansion, renewal equation, renewal process

Journal of Research of the National Bureau of Standards

Topics: Conditions for convergence of solutions, integral equation of first kind, shifting operators, slit...

56
56

Mar 9, 2016
03/16

by
Impact Journals

texts

#
eye 56

#
favorite 0

#
comment 0

In this article we examine the method of fictitious areas for the non-liner hyperbolic equations. The estimation of rate of convercence decisions is recaived. In some cases the unimproved estimation of convergence rate of the decision is received.

Topics: Hyperbolic Equation, The Method of Fictitious Areas, Filtration, Boundary Value, Unimproved...

43
43

Jul 16, 2018
07/18

by
Iaset journals

texts

#
eye 43

#
favorite 0

#
comment 0

Sedimentation is one of the most important factors that affect the storage capacity of a reservoir. A proposed model has been developed to estimate the sediment load in the reservoir of the Luis L Leon (El Granero) dam, by integrating the Universal Soil Loss Equation (USLE); integrating the factors involved in the estimation through a Geographic Information System. The developed model was validated using both the topographic survey prior to the construction of the dam and the existing...

Topics: Basin, Sedimentation, Universal Soil Loss Equation (USLE), Watershed, Water Erosion

In this paper going to be showing for all , when , the ill-posedness for the Cauchy problem 1. where is the Hilbert transform in the first variable, and .

Topics: Phrases & Math Subject Classification: Ill-posedness, Bidimensional, Benjamin-Ono Equation,...

57
57

Dec 2, 2016
12/16

by
Impact Journals

texts

#
eye 57

#
favorite 0

#
comment 0

The perturbation equation of masseless fields for Kerr-de Sitter geometryare written in form of seperable equations as in [17] called the Angular Teukolsky equation. The Angular Teukolsky equation is converted to General Heun's equation with singularities coinciding through some confluent process of one of five singularities. As in [4, 16, and 17] rational polynomials of at most degree six are introduced. AMS Subject classification: 33XX.

Topics: Heun Equation, Teukolsky Equation, Type-D Metrics, Polynomial Solutions

An iterative method for numerically solving the time independent Navier-Stokes equations for viscous compressible flows is presented. The method is based upon partial application of the Gauss-Seidel principle in block form to the systems of nonlinear algebraic equations which arise in construction of finite element (Galerkin) models approximating solutions of fluid dynamic problems. The C deg-cubic element on triangles is employed for function approximation. Computational results for a free...

Topics: NASA Technical Reports Server (NTRS), FINITE ELEMENT METHOD, NAVIER-STOKES EQUATION, STEADY STATE,...

Mathematical Modeling For The Life Sciences

Topics: model, markov, probability, steady, population, theorem, sequence, function, models, equation,...

Human activities and climate change are two key factors influencing the variation of the total amount of available surface and groundwater, hereafter termed water resources. Quantitatively separating their impacts remains a challenge. To this end, we used time-varying Budyko-type equations and a hierarchical Bayesian model in this paper to separate their impacts in 31 provincial-level divisions of China. The time-varying Budyko-type equations treat the Budyko equation parameter w as a variable,...

Topics: Budyko equation, Climate change, Hierarchical Bayesian model, Human activities, Water resources...

Small symmetric dual reflector antennas have low efficiencies because of conflicting requirements for the subreflector and feed. Low efficiency is more pronounced for antenna configurations with main reflector diameters less than 50 times its operating wavelength. the subreflector and feed geometry must be small to reduce blockage but yet large enough to be an efficient scatterer. It may be possible to compensate for this by tuning the feed and subreflector. that is, by proper choice of the...

Topics: Electric field integral equation, Method of moments, Dual reflector antennas

282
282

May 6, 2010
05/10

by
Shen, C. N

texts

#
eye 282

#
favorite 0

#
comment 0

Motion equations for manned lunar landing trajectories

Topics: EQUATIONS OF MOTION, LUNAR LANDING, TRAJECTORIES, LUNAR LANDING, MOTION EQUATION, TRAJECTORY

334
334

May 6, 2010
05/10

by
Tai, C. T

texts

#
eye 334

#
favorite 0

#
comment 0

Formulation of two scattering problems involving moving media using maxwell-minkowski equations

Topics: FORMULATIONS, MAXWELL EQUATION, SCATTERING, MAXWELL EQUATION, MINKOWSKI THEORY, SCATTERING

227
227

Jun 27, 2010
06/10

by
Marko, W

texts

#
eye 227

#
favorite 0

#
comment 0

Moving long cylindrical model for aerobraking tests at high speed in drop wire facility

Topics: LAPLACE EQUATION, MATHEMATICAL MODELS, TIDES, ANTISYMMETRY, HARMONIC FUNCTIONS, OSCILLATIONS, WAVE...

113
113

Jul 12, 2010
07/10

by
NON

texts

#
eye 113

#
favorite 0

#
comment 0

No Abstract Available

Topics: CONTROL THEORY, ESTIMATORS, MATHEMATICAL MODELS, PERFORMANCE PREDICTION, RICCATI EQUATION, SIGNAL...

344
344

May 31, 2011
05/11

by
Park, Chul; Mehta, Unmeel B.; Bogdanoff, David W

texts

#
eye 344

#
favorite 1

#
comment 0

The theoretical performance of a scramjet propulsion system incorporating an magneto-hydro-dynamic (MHD) energy bypass scheme is calculated. The one-dimensional analysis developed earlier, in which the theoretical performance is calculated neglecting skin friction and using a sudden-freezing approximation for the nozzle flow, is modified to incorporate the method of Van Driest for turbulent skin friction and a finite-rate chemistry calculation in the nozzle. Unlike in the earlier design, in...

Topics: AEROTHERMODYNAMICS, NAVIER-STOKES EQUATION, AFTERBODIES, AEROSPACE VEHICLES, FLOW DISTRIBUTION,...

67
67

Jul 5, 2019
07/19

by
Barbeau, Edward, 1938-

texts

#
eye 67

#
favorite 1

#
comment 0

xi, 212 p. : 24 cm

Topics: Pell's equation, Number theory

104
104

May 11, 2020
05/20

by
Abdzex_Kuban

texts

#
eye 104

#
favorite 0

#
comment 0

Mechanics Of Liquid Nanoand Microdispersed Magnetic Media

Topics: magnetic, fluid, particles, magnetisation, equation, fluids, field, microdispersed, liquid,...

From the Frostbyte BBS shareware collection.

Topics: program, model, error, variables, func, differential, variable, parameters, aux, errors, func type,...

Numerical Methods For Engineers And Scientists Second Edition

Topics: method, solution, equation, finite, solve, presented, equations, differential, difference,...

Nano And Micro Electromechanical Systems

Topics: energy, mems, systems, magnetic, electromagnetic, silicon, figure, fabrication, equation,...

555
555

May 6, 2010
05/10

by
Fehlberg, E

texts

#
eye 555

#
favorite 0

#
comment 0

Error propagation of interpolation formulas for second order differential equations - error analysis

Topics: DIFFERENTIAL EQUATIONS, ERROR ANALYSIS, INTERPOLATION, DIFFERENTIAL EQUATION, ERROR, INTERPOLATION

533
533

May 6, 2010
05/10

by
Deaton, E. T., Jr.; Smith, I. E

texts

#
eye 533

#
favorite 0

#
comment 0

Motion equations - iterative guidance scheme for ascent to orbit

Topics: ASCENT, ASCENT TRAJECTORIES, EQUATIONS OF MOTION, GUIDANCE (MOTION), ITERATION, ASCENT TRAJECTORY,...

856
856

May 6, 2010
05/10

by
Wonham, W. M

texts

#
eye 856

#
favorite 0

#
comment 0

Application of stochastic differential equations to optimal nonlinear filtering in control theory

Topics: CONTROL THEORY, OPTIMAL CONTROL, STOCHASTIC PROCESS, DIFFERENTIAL EQUATIONS, NONLINEAR FILTERS,...

220
220

May 6, 2010
05/10

by
Gollwitzer, H. E

texts

#
eye 220

#
favorite 0

#
comment 0

Open loop optimal control problem for plants represented by linear recurrence equations - rocket booster control

Topics: BOOSTER ROCKET ENGINES, LAUNCH VEHICLES, LINEAR EQUATIONS, LOADS (FORCES), OPTIMAL CONTROL, LAUNCH...

411
411

May 6, 2010
05/10

by
Keldysh, M. V

texts

#
eye 411

#
favorite 0

#
comment 0

Galerkin method of solving boundary value problems for certain types of linear differential equations

Topics: BOUNDARY VALUE PROBLEMS, DIFFERENTIAL EQUATIONS, GALERKIN METHOD, LINEAR EQUATIONS, LINEARITY,...

228
228

May 6, 2010
05/10

by
Montgomery, D

texts

#
eye 228

#
favorite 0

#
comment 0

General perturbation expansion for klein-gordon equation with small nonlinear term

Topics: KLEIN-GORDON EQUATION, NONLINEARITY, PERTURBATION, VALIDITY, KLEIN-GORDON EQUATION, NONLINEARITY,...

370
370

May 6, 2010
05/10

by
Parter, S. V., et al

texts

#
eye 370

#
favorite 0

#
comment 0

Differential equation computation procedures and libration motions of space mathematics

Topics: COMPUTATION, DIFFERENTIAL EQUATIONS, LECTURES, LIBRATION, LIBRATIONAL MOTION, SUMMER, DIFFERENTIAL...

5,826
5.8K

Jun 19, 2010
06/10

by
Leontev, U. N.; Vlasov, V. Z

texts

#
eye 5,826

#
favorite 4

#
comment 0

Theory based on Vlasov general variational method to analyze beams and plates on elastic foundations

Topics: ELASTIC PROPERTIES, FOUNDATIONS, PROBLEM SOLVING, VARIATIONAL PRINCIPLES, VLASOV EQUATIONS,...

757
757

Jul 11, 2010
07/10

by
Dvorak, F. A.; Woodward, F. A

texts

#
eye 757

#
favorite 0

#
comment 0

An analysis method and computer program have been developed for the calculation of the viscosity dependent aerodynamic characteristics of multi-element infinite swept wings in incompressible flow. The wing configuration consisting at the most of a slat, a main element and double slotted flap is represented in the method by a large number of panels. The inviscid pressure distribution about a given configuration in the normal chord direction is determined using a two dimensional potential flow...

Topics: INTERFERENCE DRAG, SWEPTBACK WINGS, TRANSONIC FLIGHT, AERODYNAMIC CHARACTERISTICS, ANGLE OF ATTACK,...

253
253

Jul 23, 2010
07/10

by
Mizusawa, M.; Katagi, T

texts

#
eye 253

#
favorite 0

#
comment 0

This report shows that when considered in terms of optical geometry, radially parabolic and radially hyperbolic mirrors used as mirrors for Cassegrain and parabolic antennas possess values similar to common conical horn reflector antennas.

Topics: NUMERICAL ANALYSIS, SPANWISE BLOWING, THREE DIMENSIONAL FLOW, TURBULENCE MODELS, REYNOLDS NUMBER,...

224
224

Jun 15, 2011
06/11

by
NON

texts

#
eye 224

#
favorite 0

#
comment 0

The invention is a miniature, remote, computer-controlled dead weight calibrator. This device which is comprised of an interlocking rod and dead weight assembly, a motorized lifting mechanism, a controller, and a microcomputer, allows automatic calibration of force transducers needed for wind tunnel operations while the transducers are located within a cryogenic chamber. The operation of a cryogenic transonic wind tunnel requires calibration of force transducers at cryogenic operating...

Topics: CHANNEL FLOW, REYNOLDS NUMBER, VISCOSITY, VORTICES, ENERGY BUDGETS, FLOW DISTRIBUTION, K-EPSILON...

247
247

Aug 2, 2010
08/10

by
Liu, Gao-Lia

texts

#
eye 247

#
favorite 1

#
comment 0

Based on previous research, the unified variable domain variational theory of hybrid problems for rotor flow is extended to fully 3-D transonic rotor flow with shocks, unifying and generalizing the direct and inverse problems. Three variational principles (VP) families were established. All unknown boundaries and flow discontinuities (such as shocks, free trailing vortex sheets) are successfully handled via functional variations with variable domain, converting almost all boundary and interface...

Topics: AIRFOIL PROFILES, SHAPES, AIRFOILS, DESIGN ANALYSIS, MULTIGRID METHODS, NAVIER-STOKES EQUATION,...

188
188

May 29, 2011
05/11

by
Thomas-Ogbuji, Linus U. J

texts

#
eye 188

#
favorite 0

#
comment 0

SiC/BN/SiC composites are designed to take advantage of the high specific strengths and moduli of non-oxide ceramics, and their excellent resistance to creep, chemical attack, and oxidation, while circumventing the brittleness inherent in ceramics. Hence, these composites have the potential to take turbine engines of the future to higher operating temperatures than is achievable with metal alloys. However, these composites remain developmental and more work needs to be done to optimize...

Topics: LEWIS NUMBERS, MASS TRANSFER, HEAT TRANSFER, THERMAL DIFFUSION, HIGH TEMPERATURE, LOW TEMPERATURE,...

1,069
1.1K

May 29, 2011
05/11

by
Freeman, Jon C

texts

#
eye 1,069

#
favorite 0

#
comment 0

This short paper is in response to one that appeared in this journal a few years ago [2]. The article was a comment on a previous paper [1], which presented the transformation equations between the standard two-port parameters. The equations were stated to be valid for complex terminations; which are useful when S-parameters are treated. The authors in [2] made some incorrect conclusions concerning the concept of ''generalized scattering parameters'', and this paper seeks to clarify the...

Topics: VAPORS, SENSITIVITY, SUPERSATURATION, THERMAL DIFFUSION, CLOUD CHAMBERS, CONTINUITY EQUATION,...

256
256

May 29, 2011
05/11

by
Russell, Samuel S.; Walker, James L.; Lansing, Matthew D

texts

#
eye 256

#
favorite 0

#
comment 0

During the manufacture of the X-33 liquid hydrogen (LH2) Tank 2, a total of thirty-six reinforcing caps were inspected thermographically. The cured reinforcing sheets of graphite/epoxy were bonded to the tank using a wet cobond process with vacuum bagging and low temperature curing. A foam filler material wedge separated the reinforcing caps from the outer skin of the tank. Manufacturing difficulties caused by a combination of the size of the reinforcing caps and their complex geometry lead to...

Topics: NONLINEARITY, WURTZITE, ELECTRONIC STRUCTURE, POISSON EQUATION, SCHROEDINGER EQUATION, NONLINEAR...

272
272

May 31, 2011
05/11

by
Young, Larry A.; Derby, Michael R

texts

#
eye 272

#
favorite 0

#
comment 0

Hover predictions of tiltrotor aircraft are hampered by the lack of accurate and computationally efficient models for rotor/wing interactional aerodynamics. This paper summarizes the development of an approximate, potential flow solution for the rotor-on-rotor and wing-on-rotor interactions. This analysis is based on actuator disk and vortex theory and the method of images. The analysis is applicable for out-of-ground-effect predictions. The analysis is particularly suited for aircraft...

Topics: WIND VELOCITY, DROP TOWERS, TIME DEPENDENCE, CONFERENCES, FLAME PROPAGATION, MICROGRAVITY, THREE...

348
348

May 31, 2011
05/11

by
Nallasamy, M.; Envia, E.; Thorp, S. A.; Shabbir, A

texts

#
eye 348

#
favorite 0

#
comment 0

An important source mechanism of fan broadband noise is the interaction of rotor wake turbulence with the fan outlet guide vanes. A broadband noise model that utilizes computed rotor flow turbulence from a RANS code is used to predict fan broadband noise spectra. The noise model is employed to examine the broadband noise characteristics of the 22-inch Source Diagnostic Test fan rig for which broadband noise data were obtained in wind tunnel tests at the NASA Glenn Research Center. A 9-case...

Topics: NAVIER-STOKES EQUATION, FLOW CHARACTERISTICS, SCALING LAWS, PROBLEM SOLVING, DIRECT NUMERICAL...

140
140

May 31, 2011
05/11

by
Rubinstein, Robert; Choudhari, Meela

texts

#
eye 140

#
favorite 0

#
comment 0

Stochastic versions of stability equations are developed in order to develop integrated models of transition and turbulence and to understand the effects of uncertain initial conditions on disturbance growth. Stochastic forms of the resonant triad equations, a high Reynolds number asymptotic theory, and the parabolized stability equations are developed.

Topics: UNSTEADY FLOW, DUCTS, NAVIER-STOKES EQUATION, STATISTICAL ANALYSIS, UNSTEADY AERODYNAMICS,...

1,167
1.2K

Jun 1, 2011
06/11

by
Nguyen, Truong X.; Koppen, Sandra V.; Ely, Jay J.; Williams, Reuben A.; Smith, Laura J.; Salud, Maria Theresa P

texts

#
eye 1,167

#
favorite 0

#
comment 0

Measurement processes, data and analysis are provided to address the concern for Wireless Local Area Network devices and two-way radios to cause electromagnetic interference to aircraft navigation radio systems. A radiated emission measurement process is developed and spurious radiated emissions from various devices are characterized using reverberation chambers. Spurious radiated emissions in aircraft radio frequency bands from several wireless network devices are compared with baseline...

Topics: TURBOCOMPRESSORS, ROTORS, NAVIER-STOKES EQUATION, COMPRESSOR BLADES, DIMENSIONAL ANALYSIS, DATA...

268
268

Jun 9, 2011
06/11

by
Ghiringhelli, G. L.; Masarati, P.; Mantegazza, P.; Nixon, M. W

texts

#
eye 268

#
favorite 0

#
comment 0

The paper presents a multi-body analysis of the 1/5 scale wind tunnel model of the V-22 tiltrotor, the Wing and Rotor Aeroelastic Testing System (WRATS), currently tested at NASA Langley Research Center. An original multi-body formulation has been developed at the Dipartimento di Ingegneria Aerospaziale of the Politecnico di Milano, Italy. It is based on the direct writing of the equilibrium equations of independent rigid bodies, connected by kinematic constraints that result in the addition of...

Topics: JET AIRCRAFT NOISE, FAR FIELDS, NOISE SPECTRA, JET FLOW, GREEN'S FUNCTIONS, MATHEMATICAL MODELS,...

364
364

Jun 9, 2011
06/11

by
Ostroff, Aaron J.; Bacon, Barton J

texts

#
eye 364

#
favorite 0

#
comment 0

This paper describes a general form of nonlinear dynamic inversion control for use in a generic nonlinear simulation to evaluate candidate augmented aircraft dynamics. The implementation is specifically tailored to the task of quickly assessing an aircraft's control power requirements and defining the achievable dynamic set. The achievable set is evaluated while undergoing complex mission maneuvers, and perfect tracking will be accomplished when the desired dynamics are achievable. Variables...

Topics: GRID GENERATION (MATHEMATICS), COST REDUCTION, NOZZLES, NAVIER-STOKES EQUATION, UPWIND SCHEMES...

201
201

Jun 9, 2011
06/11

by
Nowaczyk, Ronald H.; Zang, Thomas A

texts

#
eye 201

#
favorite 1

#
comment 0

The perceptions of a sample of 49 engineers and scientists from NASA Langley Research Center toward engineering design teams were evaluated. The respondents rated 60 team behaviors in terms of their relative importance for team success. They also completed a profile of their own perceptions of their strengths and weaknesses as team members. Behaviors related to team success are discussed in terms of those involving the organizational culture and commitment to the team and those dealing with...

Topics: FLOW DISTRIBUTION, SHEAR LAYERS, STABILITY, LIFT, STRESS TENSORS, NOISE REDUCTION, NAVIER-STOKES...

240
240

Jun 9, 2011
06/11

by
Fulton, J. P.; Wincheski, B.; Namkung, M

texts

#
eye 240

#
favorite 0

#
comment 0

The effective assessment of the integrity of welds is a complicated NDE problem that continues to be a challenge. To be able to completely characterize a weld, detailed knowledge of its tensile strength, ductility, hardness, microstructure, macrostructure, and chemical composition is needed. NDE techniques which can provide information on any of these features are extremely important. In this paper, we examine a seldom used approach based on the thermoelectric (TE) effect for characterizing...

Topics: COMPUTATIONAL FLUID DYNAMICS, DISCRETIZATION (MATHEMATICS), COMPUTATIONAL GRIDS, CONTOURS, STATIC...

161
161

Jun 12, 2011
06/11

by
Montes, Marcos J.; Gao, Bo-Cai; Davis, Curtiss O.; Moline, Mar

texts

#
eye 161

#
favorite 0

#
comment 0

We previously developed an algorithm named Tafkaa for atmospheric correction of remote sensing ocean color data from aircraft and satellite platforms. The algorithm allows quick atmospheric correction of hyperspectral data using lookup tables generated with a modified version of Ahmad & Fraser s vector radiative transfer code. During the past few years we have extended the capabilities of the code. Current modifications include the ability to account for within scene variation in solar...

Topics: NAVIER-STOKES EQUATION, COMBUSTION, NONLINEARITY, DESIGN OPTIMIZATION, COMPUTATIONAL FLUID...

325
325

Aug 21, 2008
08/08

by
Bossons, John D., 1936-

texts

#
eye 325

#
favorite 0

#
comment 0

Bibliography: p. 65-67

Topics: Time and economic reactions, Time, Equation of