Results 11 to 20 of about 327,754 (303)

The Effects of Climate Change on Runoff and Suspended Sediment Values in Some Watersheds of Ardabil Province [PDF]

open access: yesنشریه جغرافیا و برنامه‌ریزی, 2020
Introduction Estimation of the rivers sediment load has high complexity due to effecting different parameters in this aspect. Regarding the power relationship between discharge data and suspended sediment load use of sediment rating curves is one of the ...
Nayer Aghabeigi   +3 more
doaj   +1 more source

Rating-based CDS curves [PDF]

open access: yesThe European Journal of Finance, 2018
This paper explores the extent to which term structure of individual credit default swap (CDS) spreads can be explained by the firm's rating. Using the Nelson–Siegel model, we construct, for each day, CDS curves from a cross-section of CDS spreads for each rating class.
Olga Kolokolova   +2 more
openaire   +4 more sources

How to reduce the number of rating scale items without predictability loss? [PDF]

open access: yes, 2017
Rating scales are used to elicit data about qualitative entities (e.g., research collaboration). This study presents an innovative method for reducing the number of rating scale items without the predictability loss. The "area under the receiver operator
Araya, R.   +7 more
core   +6 more sources

Remote Sensing of Sediment Discharge in Rivers Using Sentinel-2 Images and Machine-Learning Algorithms

open access: yesHydrology, 2022
The spatio-temporal dynamism of sediment discharge (Qs) in rivers is influenced by various natural and anthropogenic factors. Unfortunately, most rivers are only monitored at a limited number of stations or not gauged at all.
Ahmed Mohsen   +2 more
doaj   +1 more source

Z-curve 2.0: Estimating Replication Rates and Discovery Rates

open access: yesMeta-Psychology, 2020
Selection for statistical significance is a well-known factor that distorts the published literature and challenges the cumulative progress in science. Recent replication failures have fueled concerns that many published results are false-positives. Brunner and Schimmack (2020) developed z-curve, a method for estimating the expected replication rate ...
František Bartoš, Ulrich Schimmack
openaire   +3 more sources

Phenomenology of the interest rate curve [PDF]

open access: yesApplied Mathematical Finance, 1999
This paper contains a phenomenological description of the whole U.S. forward rate curve (FRC), based on an data in the period 1990-1996. We find that the average FRC (measured from the spot rate) grows as the square-root of the maturity, with a prefactor which is comparable to the spot rate volatility.
J. -P. Bouchaud   +4 more
openaire   +2 more sources

Co-Jumping of Treasury Yield Curve Rates [PDF]

open access: yesStudies in Nonlinear Dynamics & Econometrics, 2019
Abstract We study the role of co-jumps in the interest rate futures markets. To disentangle continuous part of quadratic covariation from co-jumps, we localize the co-jumps precisely through wavelet coefficients and identify statistically significant ones. Using high frequency data about U.S.
Baruník, Jozef, Fišer, Pavel
openaire   +2 more sources

Hydraulic Structures as Flow Measuring Devices

open access: yesEnvironmental and Climate Technologies, 2023
Discharge measurement is the base of proper water management. The effective design and operation of hydraulic structures under both normal and extreme flow conditions depend on the quality of hydrological data.
Bilkova Eva   +3 more
doaj   +1 more source

Estimating the Sediment Flux and Budget for a Data Limited Rift Valley Lake in Ethiopia

open access: yesHydrology, 2018
Information on sediment concentration in rivers is important for the design and management of reservoirs. In this paper, river sediment flux and siltation rate of a rift valley lake basin (Lake Ziway, Ethiopia) was modeled using suspended sediment ...
Alemu O. Aga   +2 more
doaj   +1 more source

Courbes de tarage dynamiques pour la végétation aquatique saisonnière

open access: yesLHB Hydroscience Journal, 2022
La gestion des courbes de tarage des stations hydrométriques affectées par la végétation aquatique saisonnière est une gageure. La croissance puis le déclin des plantes font varier la relation hauteur-débit continuellement dans le temps, de sorte qu’il ...
Emeline Perret   +2 more
doaj   +1 more source

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