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The Empirical assessment of Portfolio Balance ModelChen, Kai-wen 26 June 2007 (has links)
Using asset prices to explain the fluctuations of nominal exchange rate is popular for decades. A majority of papers focused on Monetary Model but failed to make a consistent conclusion. In this article, we suggest that the failure of monetary model might be coming from the basic assumption of taking different countries¡¦ assets as ¡§perfect substitutes¡¨. Under such circumstances, we introduce another model named as ¡§Portfolio Balance Model¡¨ where assets of different countries are no longer be taken as ¡§perfect substitutes¡¨ , implying that UIP( Uncoverd Interest Rate Parity)exist no more either. We do not overthrow the entire theory of Monetary Model. Instead, we expect the combination of these two models will turn something out that can be much more general, consistent, and robust.
We take Canada as our domestic currency and adopt Johansen(1988) and Stock & Walson(1988) by using co-integration to test on three exchange rates relation (USD/CAD,GBP/CAD,JPY/CAD) from 1973 Q1 to 2004 Q4. It turns out that most of the coefficient are correct and passing statistical significance, such result suggest that the portfolio balance effect should not be ignored in the model.
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Effect of precipitation seasonality on climatic sensitivity of glacier mass balanceFujita, Koji, 藤田, 耕史 18 October 2008 (has links)
No description available.
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The relationship between the intertemporal balance and the collapse of fixed exchange rate regime-the empirical studies of Indonesia, Malaysia, Philippines and Thailand.Li, Jia-Ming 21 June 2001 (has links)
NO ENGLISH ABSTRACT.
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noneWu, Chia-wei 19 June 2002 (has links)
none
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The Design of an Effective Load-Balance Mechanism for Processor-in-Memory SystemsHuang, Jyh-Chiang 26 August 2002 (has links)
PIM ¡]Processor-in-Memory¡^ architectures have been proposed in recent years for the purpose of reducing performance gap between processor and memory. This new class of computer architectures attempts to integrate processor and memory on a single one chip¡CWe proposed a new transformation and parallelizing system named SAGE ¡]Statement Analysis Group Evaluation¡^to fully utilize the host processor and memory processors in PIM systems. In this thesis, we focus on designing a load-balance optimization mechanism for the job scheduling. The experimental results of this mechanism are also discussed.
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Integration and quantification of uncertainty of volumetric and material balance analyses using a Bayesian frameworkOgele, Chile 01 November 2005 (has links)
Estimating original hydrocarbons in place (OHIP) in a reservoir is fundamentally
important to estimating reserves and potential profitability. Quantifying the uncertainties
in OHIP estimates can improve reservoir development and investment decision-making
for individual reservoirs and can lead to improved portfolio performance. Two
traditional methods for estimating OHIP are volumetric and material balance methods.
Probabilistic estimates of OHIP are commonly generated prior to significant production
from a reservoir by combining volumetric analysis with Monte Carlo methods. Material
balance is routinely used to analyze reservoir performance and estimate OHIP. Although
material balance has uncertainties due to errors in pressure and other parameters,
probabilistic estimates are seldom done.
In this thesis I use a Bayesian formulation to integrate volumetric and material balance
analyses and to quantify uncertainty in the combined OHIP estimates. Specifically, I
apply Bayes?? rule to the Havlena and Odeh material balance equation to estimate
original oil in place, N, and relative gas-cap size, m, for a gas-cap drive oil reservoir. The
paper considers uncertainty and correlation in the volumetric estimates of N and m
(reflected in the prior probability distribution), as well as uncertainty in the pressure data
(reflected in the likelihood distribution). Approximation of the covariance of the
posterior distribution allows quantification of uncertainty in the estimates of N and m
resulting from the combined volumetric and material balance analyses. Several example applications to illustrate the value of this integrated approach are
presented. Material balance data reduce the uncertainty in the volumetric estimate, and
the volumetric data reduce the considerable non-uniqueness of the material balance
solution, resulting in more accurate OHIP estimates than from the separate analyses. One
of the advantages over reservoir simulation is that, with the smaller number of
parameters in this approach, we can easily sample the entire posterior distribution,
resulting in more complete quantification of uncertainty. The approach can also detect
underestimation of uncertainty in either volumetric data or material balance data,
indicated by insufficient overlap of the prior and likelihood distributions. When this
occurs, the volumetric and material balance analyses should be revisited and the
uncertainties of each reevaluated.
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Quantification of litter production and the fate of nitrogen in commercial broiler production systemsCoufal, Craig Daniel 01 November 2005 (has links)
The environmental impacts of broiler production have recently gained
considerable public attention due to concerns regarding the amount of ammonia (NH3)
released into the atmosphere from poultry facilities. Sound scientific data are needed to
accurately estimate the production of manure waste products and gaseous emissions.
This research project was undertaken to quantify nitrogen (N) loss through air emissions
from a broiler grow-out facility over 18 consecutive flocks using the mass balance
method. Measurement of litter and caked litter (cake) mass at the end of each flock
allowed for the calculation of litter and cake production rates for broilers reared on
recycled rice hull litter. Nutrient (nitrogen, phosphorus, and potassium) content of all
litter materials was also measured. Broilers were reared in a research facility under
simulated commercial conditions. All input materials (birds, feed, and litter) used in this
study were obtained directly from a commercial broiler integrator to assure applicability
to the broiler industry. The litter management technique of ??top-dressing?? was also
investigated to determine its effects on N emissions and litter and cake production rates.
Nitrogen emissions, litter and cake production rates, and nutrient density of litter materials were found to vary significantly between flocks reared at different times of the
year. Nitrogen emissions were significantly greater for summer flocks than winter
flocks. Average N loss over all 18 flocks was 11.07 g N/kg of marketed broiler (g
N/kg). Nitrogen partitioning as a percentage of inputs averaged 15.29, 6.84, 55.52, 1.27,
and 21.08% for litter, caked litter, broiler carcasses, mortalities and nitrogen loss,
respectively, over all 18 flocks. Litter and cake production was lower in the summer
compared to winter. Average litter, cake, and all litter (litter + cake) production was
153.3, 74.8, and 228.2 g of dry litter material/kg of marketed broiler. Litter and cake
phosphorus and potassium content was elevated during summer flocks, while litter
material N content decreased in summer flocks. Therefore, season of the year is an
important factor that scientists and broiler producers must take into account when
performing measurements and calculations, sampling litter materials and air emissions,
and developing nutrient management plans.
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Development of a heat-balance model for the characterization of wax blockage in flowlinesOmbu, Ebiaye Valerie 12 April 2006 (has links)
The presence of a blockage in a pipeline will alter the fluid dynamics of a flowing
system in terms of the heat, mass and velocity characteristics. The analysis of the fluid
dynamics is based on balances taken on the overall system to qualitatively and
quantitatively assess the effects of the blockage. Pioneer work in the area of mass and
momentum effects of blockages led to the development of blockage type curves useful in
characterizing blockages from limited information. This work is an extension of
previous work and is based on the application of a simplistic energy balance approach to
characterize blockages in pipelines. The resulting heat models for the case of both a
partially and fully-blocked flowline correctly predict the effect of wax deposition.
Dimensionless temperature-based blockage maps developed here can be used in
modeling unique cases where only two of the three necessary conditions are given. The
heat model matches results from commercial software within a limited range of
restricted flow conditions.
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First law energy balance as a data screening toolShao, Xiaojie 16 August 2006 (has links)
This thesis defines the Energy Balance Load ( BL E ) as the difference between the
heating requirements plus the electric gains in the building and the cooling coil loads. It
then applies a first law energy balance in conjunction with the concepts of analytical
redundancy (AR) and trend checking to demonstrate that measured values of BL E can be
compared with the simulated characteristic ambient temperature-based BL E to serve as a
useful tool to identify bad data. Uncertainty and sensitivity analysis are introduced to
analyze the impact of each building or system parameter to the simulated values of BL E .
A Visual Basic for Application (VBA) program has been developed through this research
work, which applies the methodology illustrated in this thesis to automatically prescreen
the measured building energy consumption data with the inputs of several key
parameters. Through case studies of six on-campus buildings, the methodology and the
program successfully identified monitored consumption data that appears to be
erroneous, which may result from incorrect scale factors of the sensors and the
operational changes to the building that may enormously affect the key parameters as the
simulation inputs. Finally, suggestions are given for the on-line diagnostics of sensor
signals.
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Calcium balance and bone density in immature horses fed a high protein dietSpooner, Holly Sue 30 October 2006 (has links)
Studies in other species indicate high protein diets increase urinary
calcium (Ca) excretion and may lead to negative calcium balance and reduced
bone density. As overfeeding of protein is commonplace in the horse industry,
this study was undertaken to determine the effects of excess dietary protein on
growth, physiologic response, mineral balance, bone density, and bone
geometry in immature horses. Sixteen 10-month-old American Quarter Horses
were blocked by age and sex into two dietary treatments. The control diet was
formulated to provide the NRC (1989) recommended concentration of crude
protein, while the high protein diet provided 130% of NRC (1989)
recommendations. All other nutrients were formulated at or slightly above NRC
(1989) recommendations. Blood samples, feces, and urine were collected
during the 116-day study to determine any diet effect on pH and mineral
balance. Radiographs were made of the left third metacarpal (MCIII) to
determine bone density via radiographic bone aluminum equivalence (RBAE),
and bone geometry was determined metrically from the radiographs. Urine pH decreased over time (p < 0.001), but there were no diet effects
on blood pH or urine pH. Conversely, when normalized to day 0 values, fecal
pH was reduced by feeding the high protein treatment (p < 0.02). Density of
dorsal and palmar cortices increased over time (p < 0.001), but no differences
were observed between diets. But, normalized total medial-lateral (ML) width of
the MCIII was higher in the control diet (p < 0.05). Fecal Ca loss was greater in
horses fed the high protein diet (p < 0.005), while Ca absorption and retention
were lower for horses on the high protein treatment (p < 0.02). Phosphorus (P)
balance was not different between diets, although feeding the high protein diet
resulted in higher P intake overall (p < 0.001).
While excess dietary protein may decrease fecal pH, increase fecal Ca
excretion, and decrease Ca absorption and retention, there was no consistent
effect of the high protein diet on bone density over the course of this study.
Further research is necessary to determine if feeding high-protein diets is
detrimental to bone quality in the growing horse.
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