Results 91 to 100 of about 783,650 (212)
Satellite NavigationReal-time Precise Point Positioning (PPP) with Ambiguity Resolution (PPP-AR) is an increasingly important Global Navigation Satellite System (GNSS) technique for high-precision positioning, navigation, and other time-critical applications.
Shi Du +6 more
doaj +1 more source
The Real Exchange Misalignment and Structural Change: Examining the Development Channel
The World Economy, EarlyView.ABSTRACT This paper examines the relationship between real exchange rate (RER) misalignment and structural change—the reallocation of labor from low‐ to high‐productivity sectors—recognized as a key mechanism of economic development and growth. Using industry‐level data from multiple sources covering up to 153 countries over 1970–2017, and employing ...
Salimeh Abedini Birang, Firat Demir
wiley +1 more source
Satellite NavigationWith the rapid development of technologies such as autonomous driving and robotic navigation, the demand for accurate and reliable positioning results with BDS has increased.
Weiguang GAO +5 more
doaj +1 more source
Temporary Programs, Lasting Questions: Ad Hoc Assistance in the U.S. Farm Safety Net
Applied Economic Perspectives and Policy, Volume 48, Issue 5, Page 1442-1452, December 2026.ABSTRACT Large ad hoc assistance programs have returned to U.S. farm policy since 2017, operating alongside a more developed safety net built around federally subsidized crop insurance, Title I commodity programs, and standing disaster assistance. This paper reviews the renewed use of ad hoc assistance, documents its recent scale using USDA data, and ...
Alejandro Plastina +1 more
wiley +1 more source
Kinematic Ppp-Ar In Antarctic Comparing Methods For Precise Positioning
, 2019 Öz bulunamadı.
Bezcioglu, Mert +2 more
openaire +2 more sources
Journal of Chemical Technology &Biotechnology, Volume 101, Issue 12, Page 2619-2629, December 2026.Abstract BACKGROUND Upflow anaerobic sludge blanket (UASB) reactors are widely used in low‐ and middle‐income countries, but secondary effluents may still contain organic micropollutants and residual toxicity. This study evaluated UV–Vis photolysis and UV/H2O2 as post‐treatment options for UASB secondary effluent (SE), integrating micropollutant ...
Fernando Rodrigues‐Silva +10 more
wiley +1 more source
Precise Point Positioning with Partial Ambiguity Fixing
Sensors, 2015 Reliable and rapid ambiguity resolution (AR) is the key to fast precise point positioning (PPP). We propose a modified partial ambiguity resolution (PAR) method, in which an elevation and standard deviation criterion are first used to remove the low ...
Pan Li, Xiaohong Zhang
doaj +1 more source
Oxford Bulletin of Economics and Statistics, Volume 88, Issue 6, Page 1273-1292, December 2026.ABSTRACT The paper examines the macroeconomic effects of public investment in emerging market and developing economies (EMDEs). To this end the analysis develops a new measure of public investment shocks based on cyclically adjusted government investment.
Amat Adarov +2 more
wiley +1 more source
Remote Sensing, 2018 The multiple global navigation satellite systems (multi-GNSS) bring great opportunity for the real-time retrieval of high-quality zenith tropospheric delay (ZTD), which is a critical quality for atmospheric science and geodetic applications.
Cuixian Lu +6 more
doaj +1 more source
Transportation Journal, Volume 65, Issue 4, Autumn 2026.ABSTRACT Studying employment dynamics (e.g., the rates at which firms add or shed jobs) of trucking firms is critical to inform theory and public policy. We examine incumbent trucking firm employment dynamics during the highly expansive period of March 2020–March 2021, when the COVID‐19 pandemic delivered an exogenous shock, upending established ...
Jason W. Miller +2 more
wiley +1 more source