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Journal articles on the topic 'Observin g System'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Tanaka, Tasuku. "Japanese earth observing systems in the 1990s." Advances in Space Research 11, no. 3 (1991): 201–11. http://dx.doi.org/10.1016/0273-1177(91)90422-g.

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2

Slanina, Zdeněk. "Comparing theoretical and observed data in the C6(g) system." Chemical Physics Letters 142, no. 6 (1987): 512–14. http://dx.doi.org/10.1016/0009-2614(87)80653-x.

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3

Ryan, Kelly, Lisa Bucci, Javier Delgado, Robert Atlas, and Shirley Murillo. "Impact of Gulfstream-IV Dropsondes on Tropical Cyclone Prediction in a Regional OSSE System." Monthly Weather Review 147, no. 8 (2019): 2961–77. http://dx.doi.org/10.1175/mwr-d-18-0157.1.

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Abstract Aircraft reconnaissance missions remain the primary means of collecting direct measurements of marine atmospheric conditions affecting tropical cyclone formation and evolution. The National Hurricane Center tasks the NOAA G-IV aircraft to sample environmental conditions that may impact the development of a tropical cyclone threatening to make landfall in the United States or its territories. These aircraft data are assimilated into deterministic models and used to produce real-time analyses and forecasts for a given tropical cyclone. Existing targeting techniques aim to optimize the u

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Kuschnig, R., W. W. Weiss, N. Piskounov, et al. "The peculiar binary system HR 8891 (ET And)." Symposium - International Astronomical Union 162 (1994): 43–46. http://dx.doi.org/10.1017/s0074180900214484.

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ET And is a binary system with a B9 Si star as the main component (Porb = 48.308d, e=0.46). Controversial claims in the literature concerning pulsation with periods ranging from few minutes to few hours and with variable amplitudes indicated a challenging target and motivated us to organize several photometric and spectroscopic observing campaigns. The problem with pulsation of ET And is that Teff and log g put this star in the cool domain of Slowly Pulsating B-type (SPB) stars, but the pulsation periods would be too short by a factor of about four, relatively to the shortest hitherto known pe

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Chatzidimitriou-Dreismann, C. Aris. "Maxwell’s Demon Observing Creation of a Molecular Vibration." Zeitschrift für Naturforschung A 69, no. 7 (2014): 287–96. http://dx.doi.org/10.5560/zna.2014-0005.

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Quantum correlations and associated quantum information concepts (e. g. quantum discord, entanglement, quantum Maxwell’s demon) provide novel insights in various quantum-information processing tasks, quantum-thermodynamics processes, open-system dynamics, quantum molecular dynamics, and general many-body physics. We investigate a new effect of correlations accompanying collision of two quantum systems A and B, the latter being part of a larger (interacting) system B+D. In contrast to the usual case of a classical ‘environment’ or ‘demon’ (which can have only classical correlations with A+B dur

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Buzzoni, A., A. Carbognani, R. Di Luca, et al. "The TANDEM Project as a Pilot Case for Wide-field Telescope Arrays." Astronomical Journal 169, no. 1 (2024): 53. https://doi.org/10.3847/1538-3881/ad93a2.

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Abstract We give here an account of the Telescope Array eNabling DEbris Monitoring (TANDEM) project, an innovative concept aimed at flanking, on a shared piggyback mount, the main G. D. Cassini 152 cm f/8 telescope at the INAF-OAS observing premises in Loiano, Italy. The system is especially intended for space situational awareness activities related to the study of asteroids and comets and on the astrodynamical characterization of circumterrestrial space debris and artificial satellites. TANDEM consists of a combination of four customized and independently steerable 35 cm f/3 Newtonian telesc

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Ecker, Lukas, Tobias Malzer, Arne Wahrburg, and Markus Schöberl. "Observer design for a single mast stacker crane." at - Automatisierungstechnik 69, no. 9 (2021): 806–16. http://dx.doi.org/10.1515/auto-2021-0018.

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Abstract This contribution is concerned with the design of observers for a single mast stacker crane, which is used, e. g., for storage and removal of loads in automated warehouses. As the mast of such stacker cranes is typically a lightweight construction, the system under consideration is described by ordinary as well as partial differential equations, i. e., the system exhibits a mixed finite-/infinite-dimensional character. We will present two different observer designs, an Extended Kalman Filter based on a finite-dimensional system approximation, using the Rayleigh-Ritz method and an appr

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Strong, Courtenay, Gudrun Magnusdottir, and Hal Stern. "Observed Feedback between Winter Sea Ice and the North Atlantic Oscillation." Journal of Climate 22, no. 22 (2009): 6021–32. http://dx.doi.org/10.1175/2009jcli3100.1.

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Abstract Feedback between the North Atlantic Oscillation (NAO) and winter sea ice variability is detected and quantified using approximately 30 years of observations, a vector autoregressive model (VAR), and testable definitions of Granger causality and feedback. Sea ice variability is quantified based on the leading empirical orthogonal function of sea ice concentration over the North Atlantic [the Greenland Sea ice dipole (GSD)], which, in its positive polarity, has anomalously high sea ice concentrations in the Labrador Sea region to the southwest of Greenland and low sea ice concentrations

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Lamitina, Luke, Lynne Hillenbrand, and Michael Poon. "Continued Photometric Monitoring Supports Long-term Dynamical Evolution in the Young Binary Star–Disk System KH 15D." Astronomical Journal 170, no. 2 (2025): 79. https://doi.org/10.3847/1538-3881/ade2d9.

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Abstract We present photometric time series data spanning 2018–2024 that show the effects of temporal dynamics in the binary system KH 15D, a member of the NGC 2264 star-forming region. This source exhibits complex eclipsing behavior due to a precessing circumbinary disk or ring that is slightly inclined relative to the orbital plane of the binary. Using g-band and r-band observations from the Zwicky Transient Facility over seven observing seasons, we follow the evolution of the KH 15D lightcurve as it continues to emerge from its deepest observed photometric minimum about 15 yr ago. Our obser

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Amit, Bhuyar, and V. Dongare Ujwala. "Avoidance of Drift due to change in Irradiation in Photovoltaic System with Modified Perturb and Observe MPPT Algorithm." Journal of Electrical and Power Engineering 5, no. 2 (2019): 43–52. https://doi.org/10.5281/zenodo.2682630.

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Efficiency of PV system is depending on maximum power point tracking (MPPT). It will help to extract maximum power from PV system. Perturb and Observe (P&O) maximum power point tracking algorithm is adopted everywhere, due to its simplicity and economic point of view. But in case of rapid change in insolation (G), it suffers from drift in tracking maximum power point (MPP). It is the main demerit of the P&O MPPT algorithm. This may happen due to confusion of whether power get increases due to perturbation or change in insolation(G). The drift effect is severe i

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11

Gattinger, R. L., D. A. Degenstein, E. J. Llewellyn та M. H. Stevens. "OH A2Σ+ –X2Π band ratios observed in the mesosphere by OSIRIS". Canadian Journal of Physics 86, № 7 (2008): 857–62. http://dx.doi.org/10.1139/p08-015.

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In this study, we present spectra of the mesospheric OH A2Σ+ –X2Π band system, including the 0–0, 1–1, and 1–0 bands, as observed by OSIRIS (Optical Spectrograph and Infrared Imaging System). Spectral components due to Rayleigh-scattered sunlight, lower thermospheric dayglow emission features, and baffle scatter have been removed to isolate the OH emission signature. The observed spectra are compared with model spectra assembled using rotational emission rate factors for solar resonance fluorescence (g-factors) plus prompt emission of the OH A2Σ+ –X2Π band system from solar Lyman-α photodissoc

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Chica-Toro, Faber De Jesús, and Jorge M. Garzón-González. "Absorption curves - mineral-extraction under an aeroponic system for white chrysanthemum (Dendranthema grandiflorum (Ramat.) Kitam. cv. Atlantis White)." Acta Agronómica 67, no. 1 (2018): 88–95. http://dx.doi.org/10.15446/acag.v67n1.57988.

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El objetivo de este estudio se centró en la construcción de las curvas de absorción-extracción bajo un sistema aeropónico para D. grandiflorum cv. Atlantis White y así plantear los periodos de máxima y mínima acumulación de nutrientes de las biomasas aérea, radical y total. El ciclo vegetativo de la planta, medido desde el día de trasplante (ddt) al sistema aeropónico y el día de inicio de corte, duró 49 días. Las evaluaciones se realizaron cada semana sobre plantas en competencia absoluta. Para el promedio de la biomasa aérea se tomaron tres repeticiones, para la biomasa radical se tomó una s

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Malacarne, Miryam Chiara, Maristella Mastore, Marzia Bruna Gariboldi, Maurizio Francesco Brivio, and Enrico Caruso. "Preliminary Toxicity Evaluation of a Porphyrin Photosensitizer in an Alternative Preclinical Model." International Journal of Molecular Sciences 24, no. 4 (2023): 3131. http://dx.doi.org/10.3390/ijms24043131.

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In photodynamic therapy (PDT), a photosensitizer (PS) excited with a specific wavelength, and in the presence of oxygen, gives rise to photochemical reactions that lead to cell damage. Over the past few years, larval stages of the G. mellonella moth have proven to be an excellent alternative animal model for in vivo toxicity testing of novel compounds and virulence testing. In this article, we report a series of preliminary studies on G. mellonella larvae to evaluate the photoinduced stress response by a porphyrin (PS) (TPPOH). The tests performed evaluated PS toxicity on larvae and cytotoxici

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14

Davis, Christopher A., and David A. Ahijevych. "Mesoscale Structural Evolution of Three Tropical Weather Systems Observed during PREDICT." Journal of the Atmospheric Sciences 69, no. 4 (2012): 1284–305. http://dx.doi.org/10.1175/jas-d-11-0225.1.

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Abstract Three well-observed Atlantic tropical weather systems that occurred during the 2010 hurricane season are analyzed. One case was former Tropical Storm Gaston that failed to redevelop into a tropical cyclone; the other two cases were developing storms Karl and Matthew. Geostationary satellite, multisensor-derived precipitation, and dropsondes from the National Science Foundation (NSF)–NCAR Gulfstream V (GV), NASA DC-8, and the NOAA Gulfstream IV (G-IV) and WP-3D Orion (P-3) aircraft are analyzed in a system-following frame to quantify the mesoscale dynamics of these systems. Gaston feat

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NIDYASARI, RR SYAFIRA, HILDA AKMAL, and NUNIK SRI ARIYANTI. "Karakterisasi Morfologi dan Anatomi Tanaman Manggis dan Kerabatnya (Garcinia spp.) di Taman Buah Mekarsari." Jurnal Sumberdaya Hayati 4, no. 1 (2018): 12–20. http://dx.doi.org/10.29244/jsdh.4.1.12-20.

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Mangosteen (Garcinia mangostana) cultivation has problems in terms of fruit quality and rooting system. This problem is solved by Mekarsari Fruit Garden by developing the technology of double rootstock seedling that is by combining two mangosteen seedling into one plant through the pasting process. Characterization of the collection of mangosteen plants and its species of relatives (Garcinia spp.) is needed to seek superior characters used for the technology of double rootstock seedlings, cultivar development, and management and preservation of mangosteen germplasm. This study aims to record a

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16

Rabello Soares, M. Cristina, Marcia C. de Freitas, and Bernardo P. L. Ferreira. "Blackbody Temperature of 200+ Stellar Flares Observed with the CoRoT Satellite." Astronomical Journal 164, no. 5 (2022): 223. http://dx.doi.org/10.3847/1538-3881/ac90cb.

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Abstract We estimated blackbody temperature for 209 flares observed at 69 F–K stars, significantly increasing the number of flare temperature determinations. We used the Blue and Red channels obtained by the 27 cm telescope of the CoRoT satellite at high cadence and long duration. The wavelength limits of the channels were estimated using spectra from the Pickles library for the spectral type and luminosity class of each star, provided by the Exodat Database. The temperatures were obtained from the flare energy Blue-to-Red ratio, using the flare equivalent duration and stellar flux in both cha

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17

Kumar, Harsh, Varun Bhalerao, G. C. Anupama, et al. "India’s First Robotic Eye for Time-domain Astrophysics: The GROWTH-India Telescope." Astronomical Journal 164, no. 3 (2022): 90. http://dx.doi.org/10.3847/1538-3881/ac7bea.

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Abstract We present the design and performance of the GROWTH-India telescope, a 0.7 m robotic telescope dedicated to time-domain astronomy. The telescope is equipped with a 4k back-illuminated camera that gives a 0.°82 field of view and a sensitivity of m g′ ∼ 20.5 in 5 minute exposures. Custom software handles observatory operations: attaining high on-sky observing efficiencies (≳80%) and allowing rapid response to targets of opportunity. The data processing pipelines are capable of performing point-spread function photometry as well as image subtraction for transient searches. We also presen

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18

Surenkova, Inga N., Galina A. Suslova, and Anna P. Skoromets. "About the system of rehabilitation of preterm infants within walking distance." Pediatrician (St. Petersburg) 7, no. 2 (2016): 140–44. http://dx.doi.org/10.17816/ped72140-144.

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During last five years there was increasing preterm infants, these children were born with a gestational age of 26 weeks and weighing 800 g, with severe combined pathology. Preterm infants came to the nearest polyclinics after the first stage of rehabilitation in hospitals. There are many questions how and when specialists should begin rehabilitation of such children. Specialists observes that is required an integrated approach to the rehabilitation of premature babies by analyzing the development of these children. Considering that children’s polyclinic allows monitoring children till 18 year

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19

Khoroshylov, S. V., and C. Wang. "Synthesis of a parametrically robust controller with an extended state observer." Technical mechanics 2024, no. 3 (2024): 22–34. http://dx.doi.org/10.15407/itm2024.03.022.

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This paper considers the problem of control of a parametrically uncertain dynamic system using an extended state observer. The control system is implemented using a two-loop scheme, where the outer loop ensures the fulfillment of the selected criterion for controlling the state vector, and the inner loop compensates for or reduces the influence of the vector of the total equivalent disturbance. The goal of the study is to develop a procedure for synthesizing an extended state observer taking into account the parametric uncertainty of the plant and the requirements for the closed loop of the co

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Schröder, Marc, Maarit Lockhoff, John M. Forsythe, Heather Q. Cronk, Thomas H. Vonder Haar, and Ralf Bennartz. "The GEWEX Water Vapor Assessment: Results from Intercomparison, Trend, and Homogeneity Analysis of Total Column Water Vapor." Journal of Applied Meteorology and Climatology 55, no. 7 (2016): 1633–49. http://dx.doi.org/10.1175/jamc-d-15-0304.1.

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AbstractThe Global Energy and Water Cycle Exchanges project (GEWEX) water vapor assessment’s (G-VAP) main objective is to analyze and explain strengths and weaknesses of satellite-based data records of water vapor through intercomparisons and comparisons with ground-based data. G-VAP results from the intercomparison of six total column water vapor (TCWV) data records are presented. Prior to the intercomparison, the data records were regridded to a common regular grid of 2° × 2° longitude–latitude. All data records cover a common period from 1988 to 2008. The intercomparison is complemented by

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Draper, Clara, and Rolf H. Reichle. "Assimilation of Satellite Soil Moisture for Improved Atmospheric Reanalyses." Monthly Weather Review 147, no. 6 (2019): 2163–88. http://dx.doi.org/10.1175/mwr-d-18-0393.1.

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Abstract A newly developed, weakly coupled land and atmosphere data assimilation system for NASA’s Global Earth Observing System model is presented, and used to demonstrate the benefit of assimilating satellite soil moisture into an atmospheric reanalysis. Specifically, Advanced Scatterometer and Soil Moisture Ocean Salinity soil moisture retrievals are assimilated into a system that uses the same model, atmospheric assimilation system, and atmospheric observations as the Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2). The atmosphere is sensitive to soil m

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22

Antic-Jovanovic, Ankica, Milos Momcilovic, Vojislav Bojovic, Murtadha Khakoo, and Russ Laher. "Franck-Condon factors and observed band strength distribution in the vibrational structure of the Ag2 D-X band system." Journal of the Serbian Chemical Society 75, no. 5 (2010): 659–67. http://dx.doi.org/10.2298/jsc090608035a.

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Potential curves for the X1?g+ and D1?u+ states of three diatomic silver isotopomers, 107Ag2, 107Ag109Ag and 109Ag2, were determined from the best available molecular constants by the Rydberg-Klein-Rees method. From these potentials, Franck-Condon factors and band-origin wave numbers were computed, and the reliability of the obtained values was verified by comparison with the observed band strength distribution and the measured band origin positions in a previously recorded D-X spectrum. The ratios of the Franck-Condon factors to those of corresponding isotopic bands were found to be very clos

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Marino, Andrew A., R. Michael Wolcott, Robert Chervenak, Frances Jourd'Heuil, Erik Nilsen, and Clifton Frilot. "Nonlinear response of the immune system to power-frequency magnetic fields." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 279, no. 3 (2000): R761—R768. http://dx.doi.org/10.1152/ajpregu.2000.279.3.r761.

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Studies of the effects of power-frequency electromagnetic fields (EMFs) on the immune and other body systems produced positive and negative results, and this pattern was usually interpreted to indicate the absence of real effects. However, if the biological effects of EMFs were governed by nonlinear laws, deterministic responses to fields could occur that were both real and inconsistent, thereby leading to both types of results. The hypothesis of real inconsistent effects due to EMFs was tested by exposing mice to 1 G, 60 Hz for 1–105 days and observing the effect on 20 immune parameters, usin

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Yahalomi, Daniel A., Ruth Angus, David N. Spergel, and Daniel Foreman-Mackey. "Detecting Solar System Analogs through Joint Radial Velocity/Astrometric Surveys." Astronomical Journal 166, no. 6 (2023): 258. http://dx.doi.org/10.3847/1538-3881/ad05cc.

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Abstract Earth-mass exoplanets on year-long orbits and cool gas giants (CGG) on decade-long orbits lie at the edge of current detection limits. The Terra Hunting Experiment (THE) will take nightly radial velocity (RV) observations on HARPS3 of at least 40 bright nearby G and K dwarfs for 10 yr, with a target 1σ measurement error of ∼0.3 m s−1, in search of exoplanets that are Earth-like in mass and temperature. However, RV observations can only provide minimum mass estimates, due to the mass–inclination degeneracy. Astrometric observations of these same stars, with sufficient precision, could

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Ho, Shu-Peng, Xinjia Zhou, Xi Shao, et al. "Initial Assessment of the COSMIC-2/FORMOSAT-7 Neutral Atmosphere Data Quality in NESDIS/STAR Using In Situ and Satellite Data." Remote Sensing 12, no. 24 (2020): 4099. http://dx.doi.org/10.3390/rs12244099.

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A COSMIC-1/FORMOSAT-3 (Constellation Observing System for Meteorology, Ionosphere, and Climate-1 and Formosa Satellite Mission 3) follow-on mission, COSMIC-2/FORMOSAT-7, had been successfully launched into low-inclination orbits on 25 June 2019. COSMIC-2 has a significantly increased Signal-to-Noise ratio (SNR) compared to other Radio Occultation (RO) missions. This study summarized the initial assessment of COSMIC-2 data quality conducted by the NOAA (National Oceanic and Atmospheric Administration) Center for Satellite Applications and Research (STAR). We use validated data from other RO mis

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Robinson, James E., Megan E. Schwamb, R. Lynne Jones, et al. "Tuning the Legacy Survey of Space and Time Observing Strategy for Solar System Science: Incremental Templates in Year 1." Astrophysical Journal Supplement Series 279, no. 1 (2025): 9. https://doi.org/10.3847/1538-4365/adc307.

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Abstract The Vera C. Rubin Observatory is due to commence the 10 yr Legacy Survey of Space and Time (LSST) at the end of 2025. To detect transient/variable sources and identify solar system objects (SSOs), the processing pipelines require templates of the static sky to perform difference imaging. During the first year of the LSST, templates must be generated as the survey progresses; otherwise, SSOs cannot be discovered nightly. The incremental template generation strategy has not been finalized; therefore, we use the Metric Analysis Framework (MAF) and a simulation of the survey cadence (one_

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Maeda, Jin, Pascal Cardinael, Adrian Flood, and Gerard Coquerel. "Improved Experimental Yield of Temperature-Cycle-Induced Deracemization (TCID) with Cooling and Crystal Washing: Application of TCID for the Industrial Scale." Crystals 14, no. 7 (2024): 588. http://dx.doi.org/10.3390/cryst14070588.

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Temperature-Cycle-Induced Deracemization (TCID) offers a promising approach to obtain enantiopure solids from racemic mixtures. By combining rapid racemization in solution and temperature swings, homochirality is theoretically achieved. Despite theoretical expectations of doubled yields compared to traditional chiral separation methods, such as in Preferential Crystallization, experimental validation remains lacking. We applied TCID to (1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-one) (Cl-TAK), introducing a post-TCID cooling step to enhance yield and a washing step to au

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Damasso, M., L. Zeng, L. Malavolta, et al. "So close, so different: characterization of the K2-36 planetary system with HARPS-N." Astronomy & Astrophysics 624 (April 2019): A38. http://dx.doi.org/10.1051/0004-6361/201834671.

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Context. K2-36 is a K dwarf orbited by two small (Rb = 1.43 ± 0.08 R⊕ and Rc = 3.2 ± 0.3 R⊕), close-in (ab = 0.022 au and ac = 0.054 au) transiting planets discovered by the Kepler/K2 space observatory. They are representatives of two distinct families of small planets (Rp < 4 R⊕) recently emerged from the analysis of Kepler data, with likely a different structure, composition and evolutionary pathways. Aims. We revise the fundamental stellar parameters and the sizes of the planets, and provide the first measurement of their masses and bulk densities, which we use to infer their structure a

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Roslan, Jumardi, Siti Mazlina Mustapa Kamal, Khairul Faezah Md. Yunos, and Norhafizah Abdullah. "Fractionation of Tilapia By-Product Protein Hydrolysate Using Multilayer Configuration of Ultrafiltration Membrane." Processes 9, no. 3 (2021): 446. http://dx.doi.org/10.3390/pr9030446.

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Production of small-sized peptides is significant because of their health benefits. Ultrafiltration (UF) membrane provides an effective fractionation of small-sized peptides on a large scale. Thus, the present study was aimed to evaluate the performance of multilayer UF membrane in fractionating tilapia fish by-product (TB) protein hydrolysate by observing the permeate flux, peptide transmission, and peptide distribution under different stirring speed, pH of feed solution, and salt concentration (NaCl). The fractionation process was carried out using a dead-end UF membrane system that consists

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Wang, B. R., X. Y. Liu, and J. K. Wang. "Assessment of COSMIC radio occultation retrieval product using global radiosonde data." Atmospheric Measurement Techniques Discussions 5, no. 6 (2012): 8405–34. http://dx.doi.org/10.5194/amtd-5-8405-2012.

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Abstract. The radio occultation retrieval product of the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation sounding system was verified using the global radiosonde from 2007 to 2010. 4 yr of samples were used to collect quantities of data using much stricter matching criteria than previous studies to obtain more accurate results. The horizontal distance between the radiosonde station and the occultation event is within 100 km, and the time window is 1 h. The comparison was performed from 925 hPa to 10 hPa. The results indicated that the COSMIC's

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Lai, Yufen, Mengyan Li, Xiaofei Liao, and Li Zou. "Smartphone-Assisted Colorimetric Detection of Glutathione and Glutathione Reductase Activity in Human Serum and Mouse Liver Using Hemin/G-Quadruplex DNAzyme." Molecules 26, no. 16 (2021): 5016. http://dx.doi.org/10.3390/molecules26165016.

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Abnormal levels of reduced glutathione (GSH) and glutathione reductase (GR) are usually related to a variety of diseases, so it is of great significance to determine the GSH concentration and GR activity. We herein develop a smartphone-assisted colorimetric biosensor for the detection of GSH and GR activity in human serum and mouse liver using hemin/G-quadruplex DNAzyme. Firstly, an obvious color change from colorless to green can be observed, owing to the high peroxidase-like activity of hemin/G-quadruplex DNAzyme toward 2,2′-azino-bis(3-ethylbenzothiozoline-6-sulfonic acid) (ABTS). With the

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Kilawati, Yuni, and R. Adharyan Islamy. "Immunostimulant Activity of Gracilaria sp. and Padina sp. on Immune System of Vannamei Shrimp (Litopenaeus vannamei) Against Vibrio harveyi." Journal of Aquaculture and Fish Health 10, no. 2 (2021): 252. http://dx.doi.org/10.20473/jafh.v10i2.23009.

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The pathogenic bacterial infection is one of the problems in the cultivation of vannamei shrimp (Litopenaeus vannamei), causing a high mortality rate of cultured shrimp. The use of antibiotics or chemicals with inappropriate concentrations can harm the aquatic environment, cause resistance, and endanger consumer health because the residues from the chemicals used will periodically accumulate in the body of shrimp. One way to control and prevent shrimp disease is to increase the shrimp immune system by using immunostimulants from seaweed. This study aims to analyze the immunostimulant activity

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Freudenthal, J., C. von Essen, A. Ofir, et al. "Kepler Object of Interest Network." Astronomy & Astrophysics 628 (August 2019): A108. http://dx.doi.org/10.1051/0004-6361/201935879.

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Context. The Kepler Object of Interest Network (KOINet) is a multi-site network of telescopes around the globe organised for follow-up observations of transiting planet candidate Kepler objects of interest with large transit timing variations (TTVs). The main goal of KOINet is the completion of their TTV curves as the Kepler telescope stopped observing the original Kepler field in 2013. Aims. We ensure a comprehensive characterisation of the investigated systems by analysing Kepler data combined with new ground-based transit data using a photodynamical model. This method is applied to the Kepl

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Ho, Shu-peng, Stanislav Kireev, Xi Shao, Xinjia Zhou, and Xin Jing. "Processing and Validation of the STAR COSMIC-2 Temperature and Water Vapor Profiles in the Neural Atmosphere." Remote Sensing 14, no. 21 (2022): 5588. http://dx.doi.org/10.3390/rs14215588.

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The global navigation satellite system (GNSS) radio occultation (RO) is becoming an essential component of National Oceanic and Atmospheric Administration (NOAA) observation systems. The constellation observing system for meteorology, ionosphere, and climate (COSMIC) 2 mission and the Formosa satellite mission 7, a COSMIC follow-on mission, is now the NOAA’s backbone RO mission. The NOAA’s dedicated GNSS RO SAtellite processing and science Application Center (RO-SAAC) was established at the Center for Satellite Applications and Research (STAR). To better quantify how the observation uncertaint

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Kinanti, Sekar, Agus Haryanto, Sapto Kuncoro, and Siti Suharyatun. "Kajian Industri Arang Dari Kayu Akasia (Acacia mangium) Di Kecamatan Bumi Nabung Kabupaten Lampung Tengah." Jurnal Agricultural Biosystem Engineering 1, no. 3 (2022): 370. https://doi.org/10.23960/jabe.v1i3.6333.

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One way to increase the energy and economic value of wood waste is to convert it into charcoal through the pyrolysis process. The purpose of this study was to determine the performance of the acacia wood charcoal industry and the characteristics of acacia wood charcoal. Data collection was carried out by observing the production process of acacia wood charcoal in Bumi Nabung District, Central Lampung Regency. Parameters included charcoal yield, processing capacity, charcoal characteristics (bulk density, moisture content, ash content, water absorption, and calorific value), and economic analys

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GÜN, GÜLNUR ÝKİS, and E. NİHAL ERCAN. "X-RAY SPECTRAL ANALYSIS OF SU UMa TYPE DWARF NOVAE OBSERVED WITH ROSAT." International Journal of Modern Physics D 12, no. 04 (2003): 739–55. http://dx.doi.org/10.1142/s0218271803003372.

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X-ray spectral parameters were determined for eight SU UMa type Dwarf Novae observed with the ROSAT PSPC. The raw data were fitted with various spectral models and the best fit spectral models are found to be that of Raymond–Smith and Thermal Bremsstrahlung. The best fit temperatures were estimated to be between kT ~ 1.1-1.8 keV while the Column Densities were found to be between NH ~ 2.4×1020-4.1×1020 cm -2. The estimated 0.1-2.4 keV fluxes were in the range of log FX=-13 to -11 ergs cm-2 s-1. FX/F UV and FX/F opt rates were calculated to be between ~0.09 and ~0.37. This shows that most of th

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Anderson, G. E., G. Schroeder, A. J. van der Horst, et al. "The Early Radio Afterglow of Short GRB 230217A." Astrophysical Journal Letters 975, no. 1 (2024): L13. http://dx.doi.org/10.3847/2041-8213/ad85e9.

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Abstract We present the radio afterglow of short gamma-ray burst (GRB) 230217A, which was detected less than 1 day after the gamma-ray prompt emission with the Australia Telescope Compact Array (ATCA) and the Karl G. Jansky Very Large Array. The ATCA rapid-response system automatically triggered an observation of GRB 230217A following its detection by the Neil Gehrels Swift Observatory and began observing the event just 32 minutes postburst at 5.5 and 9 GHz for 7 hr. Dividing the 7 hr observation into three time-binned images allowed us to obtain radio detections with logarithmic central times

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CĂLUGĂR, Anamaria, Zsolt-Tibor GAL, Florin-Dumitru BORA, Anca Cristina BABEȘ, and Cladiu Ioan BUNEA. "The Influence of Mycorrhiza on Grape Quality and Biological Indices of Vegetative Balance in Burgund Mare Variety in the Climate Conditions of Satu Mare." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture 82, no. 1 (2025): 37–42. https://doi.org/10.15835/buasvmcn-hort:2025.0001.

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In grapevine culture, mycorrhiza represents a symbiotic relationship between plant roots and certain fungi that live in the soil, acting as an extension of the root system. Through the study conducted in this work, an attempt was made to observe the behaviour of the Burgund Mare variety over the year 2023. The experiment was performed on a personal plantation in Satu Mare, considering the training system as follows: Control Variant CV – Guyot on a semi-trunk (non-mycorrhizal), V1 – unilateral cordon, and V2 – simple Guyot. The determinations involved observing the influence of mycorrhiza on gr

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Rapouch, K., and M. Mrázek. "Use of ultrasound for cleaning of components of historical vehicles in Technical Museum in Brno." Koroze a ochrana materialu 64, no. 3 (2020): 79–86. http://dx.doi.org/10.2478/kom-2020-0012.

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Abstract In the collections of Technical Museum in Brno, large number of historical vehicles is placed. During the operation, parts of their motors are being fouled. Frequently, they become even immobile (e. g. due to a fouled fuel system). In this case, the method using ultrasound with a suitable concentrate appears as the most suitable. In fact, ultrasound works also in inaccessible places with large efficiency. Not only the chosen solution influences the cleaning efficiency, but also parameters as time, bath temperature and ultrasound frequency. The cleaning process was evaluated according

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Corcoran, Forrest, and Christopher E. Parrish. "DORSL-FIN: A Self-supervised Neural Network for Recovering Missing Bathymetry from ICESat-2." Photogrammetric Engineering & Remote Sensing 89, no. 9 (2023): 561–75. http://dx.doi.org/10.14358/pers.23-00011r2.

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Bathymetric data, comprising elevations of submerged surfaces (e. g., seafloor or lake bed), constitute a critical need for a wide range of science and application focus areas, such as safety of marine navi- gation, benthic habitat mapping, flood inundation modeling, and coastal engineering. Over the past decade, the availability of near- shore bathymetric data has increased dramatically due to advances in satellite-derived bathymetry (SDB). One notable advance occurred with the 2018 launch of NASA's Ice, Cloud, and land Elevation Satellite 2 (ICESat-2), carrying the Advanced Topographic Laser

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Wang, B. R., X. Y. Liu, and J. K. Wang. "Assessment of COSMIC radio occultation retrieval product using global radiosonde data." Atmospheric Measurement Techniques 6, no. 4 (2013): 1073–83. http://dx.doi.org/10.5194/amt-6-1073-2013.

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Abstract. The radio occultation retrieval product of the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Radio Occultation sounding system was verified using the global radiosonde data from 2007 to 2010. Samples of 4 yr were used to collect quantities of data using much stricter matching criteria than previous studies to obtain more accurate results. The horizontal distance between the radiosonde station and the occultation event is within 100 km, and the time window is 1 h. The comparison was performed from 925 hPa to 10 hPa. The results indicated that the COS

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Schäfler, Andreas, Andreas Dörnbrack, Christoph Kiemle, Stephan Rahm, and Martin Wirth. "Tropospheric Water Vapor Transport as Determined from Airborne Lidar Measurements." Journal of Atmospheric and Oceanic Technology 27, no. 12 (2010): 2017–30. http://dx.doi.org/10.1175/2010jtecha1418.1.

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Abstract The first collocated measurements during THORPEX (The Observing System Research and Predictability Experiment) regional campaign in Europe in 2007 were performed by a novel four-wavelength differential absorption lidar and a scanning 2-μm Doppler wind lidar on board the research aircraft Falcon of the Deutsches Zentrum für Luft- und Raumfahrt (DLR). One mission that was characterized by exceptionally high data coverage (47% for the specific humidity q and 63% for the horizontal wind speed υh) was selected to calculate the advective transport of atmospheric moisture qυh along a 1600-km

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Li, R., Q.-L. Min, and L. C. Harrison. "A Case Study: The Indirect Aerosol Effects of Mineral Dust on Warm Clouds." Journal of the Atmospheric Sciences 67, no. 3 (2010): 805–16. http://dx.doi.org/10.1175/2009jas3235.1.

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Abstract The indirect aerosol effect (Twomey effect) is studied during a Saharan dust-transport event that presented an unusually favorable combination of a dust-loading gradient across clouds with warm cloud-top temperatures. Standard retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS), the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E), and the Clouds and the Earth’s Radiant Energy System (CERES) provide cloud-top temperature (a surrogate for height), liquid water path (LWP), classification of precipitation regime, and radiation flux. The aut

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Kazumori, Masahiro, Quanhua Liu, Russ Treadon, and John C. Derber. "Impact Study of AMSR-E Radiances in the NCEP Global Data Assimilation System." Monthly Weather Review 136, no. 2 (2008): 541–59. http://dx.doi.org/10.1175/2007mwr2147.1.

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Abstract The impact of radiance observations from the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) was investigated in the National Centers for Environmental Prediction (NCEP) Global Data Assimilation System (GDAS). The GDAS used NCEP’s Gridpoint Statistical Interpolation (GSI) analysis system and the operational NCEP global forecast model. To improve the performance of AMSR-E low-frequency channels, a new microwave ocean emissivity model and its adjoint with respect to the surface wind speed and temperature were developed and incorporated into the assimilation sy

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Küchler, Nils, Stefan Kneifel, Ulrich Löhnert, Pavlos Kollias, Harald Czekala, and Thomas Rose. "A W-Band Radar–Radiometer System for Accurate and Continuous Monitoring of Clouds and Precipitation." Journal of Atmospheric and Oceanic Technology 34, no. 11 (2017): 2375–92. http://dx.doi.org/10.1175/jtech-d-17-0019.1.

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AbstractA new 94-GHz frequency-modulated continuous wave (FMCW) Doppler radar–radiometer system [Jülich Observatory for Cloud Evolution (JOYCE) Radar–94 GHz (JOYRAD-94)] is presented that is suitable for long-term continuous observations of cloud and precipitation processes. New features of the system include an optimally beam-matched radar–radiometer; a vertical resolution of up to 5 m with sensitivities down to −62 dBZ at 100-m distance; adjustable measurement configurations within the vertical column to account for different observational requirements; an automatic regulation of the transmi

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Tremblay, C. D., J. Sofair, L. Steffes, et al. "COSMIC’s Large-scale Search for Technosignatures during the VLA Sky Survey: Survey Description and First Results." Astronomical Journal 169, no. 3 (2025): 122. https://doi.org/10.3847/1538-3881/ad9ea5.

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Abstract Developing algorithms to search through data efficiently is a challenging part of searching for signs of technology beyond our solar system. We have built a digital signal processing system and computer cluster on the backend of the Karl G. Jansky Very Large Array (VLA) in New Mexico in order to search for signals throughout the Galaxy consistent with our understanding of artificial radio emissions. In our first paper, we described the system design and software pipelines. In this paper, we describe a postprocessing pipeline to identify persistent sources of interference, filter out f

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Galvis-Velandia, J. E., K. Puerto-López, and J. Ramírez-Mateus. "Analysis of linear and non-linear effects in the frequency domain for a three-channel optical transmission system." Journal of Physics: Conference Series 2102, no. 1 (2021): 012017. http://dx.doi.org/10.1088/1742-6596/2102/1/012017.

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Abstract This paper presents the analysis of a wavelength division multiplexer communication system in the frequency domain, with the objective of visualizing the incidence of the linear phenomena of attenuation and chromatic dispersion, together with the phenomenon of phase self-modulation, the Kerr electro-optical effect and fourth wave mixing. The analyzed system consists of a laser transmitter with a Mach-Zender modulator and a standard G.625b single-mode fiber link transmitting three optical signals of 10 mW, 25 mW and 50 mW at a fundamental wavelength of 1550 nm at a rate of 10 Gbps. Thi

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AMORIM NETO, Juarez Pompeu de, Ricardo José Pontes LIMA, Paulo Alexandre Costa ROCHA, Felipe Pinto MARINHO, and Maria Eugênia Vieira da SILVA. "EXPERIMENTAL ANALYSIS OF A SOLAR HEAT SYSTEM USING HYBRID SILVER NANOFLUID AND TITANIUM DIOXIDE." Periódico Tchê Química 17, no. 34 (2020): 448–58. http://dx.doi.org/10.52571/ptq.v17.n34.2020.472_p34_pgs_448_458.pdf.

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The world population is increasingly aware of environmental issues involving our planet. In search of solutions that will contribute to the conservation of the environment, you can use the renewable energies that are in great expansion, being the use of solar energy a solution for this purpose. This study aimed to evaluate the energy absorption capacity of a hybrid silver nanofluid and titanium dioxide used for direct solar absorption in a "Solar Wall." The experiments performed were exposed for 16 hours for several days. Various concentrations were analyzed, where a concentration of 23.2 ppm

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Kim, Seung-Taik, In-Sik Yoon, Sung-Chul Jung, and Jong-Sun Ko. "Robust Sensorless Control of Interior Permanent Magnet Synchronous Motor Using Deadbeat Extended Electromotive Force Observer." Energies 15, no. 20 (2022): 7568. http://dx.doi.org/10.3390/en15207568.

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This paper proposes a novel and robust method of sensorless speed control using a deadbeat observer for an interior permanent magnet synchronous motor (IPMSM). The proposed sensorless speed control method uses a deadbeat observer to estimate the extended electromotive force (EEMF) in a rotational coordinate system. The estimated EEMF is used in the IPMSM velocity estimation algorithm. The deadbeat EEMF observer (DEEMFO) shows greater robustness compared to the reconstructor, which estimates the EEMF by simply recalculating the voltage equation. Unlike a reconstructor, DEEMFO has a feedback com

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Hansen, Jerome, and Peter Kleinebudde. "Increasing the Batch Size of a QESD Crystallization by Using a MSMPR Crystallizer." Pharmaceutics 14, no. 6 (2022): 1227. http://dx.doi.org/10.3390/pharmaceutics14061227.

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Quasi-emulsion solvent diffusion (QESD) crystallizations can improve the micromeritic properties of drugs and excipients. A solution is dispersed in a miscible antisolvent as a transient emulsion. Using this technique, substances that normally crystallize in the form of e.g., needles, agglomerate into spherical, hollow particles. A disadvantage of QESD crystallizations is that the particle size of the agglomerates decreases with an increased solvent fraction of the mother liquor. Therefore, in batch production, many consecutive runs have to be performed, which is a time- and material-intensive

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