Results 81 to 90 of about 26,343 (300)

Improved Algorithms for Accurate Retrieval of UV - Visible Diffuse Attenuation Coefficients in Optically Complex, Inshore Waters [PDF]

Photochemical processes driven by high-energy ultraviolet radiation (UVR) in inshore, estuarine, and coastal waters play an important role in global bio geochemical cycles and biological systems.
Cao, Fang, Fichot, Cedric G., Hooker, Stanford B., Miller, William L.   +3 more
core   +1 more source

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

Arthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai, Filemon Tan, Minghua Wu, Jeffery L. Browning, Samuel Theodore, Meng Zhang, Brian Skaug, Harshdeep Singh Chawla, Manmohan Singh, Salavat Aglyamov, Kirill V. Larin, Maureen Mayes, Shervin Assassi   +12 more
wiley   +1 more source

Enhancing Chlorophyll-a Estimation in Optically Complex Waters Using ZY-1 02E Hyperspectral Imagery: An Integrated Approach Combining Optical Classification and Multi-Index Blending Models

Remote Sensing
Chlorophyll-a (Chl-a) concentration is a key parameter for assessing the degree of eutrophication and the algal bloom risk in water bodies. Accurate and robust monitoring of Chl-a is crucial for effective water quality management of inland and coastal ...
Congxiang Yan, Xin Fu, Hailiang Gao, Wen Dong, Zhen Liu, Zhenghe Xu   +5 more
doaj   +1 more source

Observational constraints on dust disk lifetimes : implications for planet formation [PDF]

, 2008
Thus far our impressions regarding the evolutionary time scales for young circumstellar disks have been based on small number statistics. Over the past decade, however, in addition to preci- sion study of individual star/disk systems, substantial ...
Hillenbrand, L.A.
core  

An interferometric study of the post-AGB binary 89 Herculis I Spatially resolving the continuum circumstellar environment at optical and near-IR wavelengths with the VLTI, NPOI, IOTA, PTI, and the CHARA Array

, 2013
Binary post-AGB stars are interesting laboratories to study both the evolution of binaries as well as the structure of circumstellar disks. A multiwavelength high angular resolution study of the prototypical object 89 Herculis is performed with the aim ...
Banerjee, D. P. K., Brummelaar, T. ten, Chesneau, O., Farrington, C., Hillen, M., Hummel, C. A., Monnier, J. D., Mourard, D., Tycner, C., Van Winckel, H., Verhoelst, T., Zavala, R. T.   +11 more
core   +2 more sources

The distance and neutral environment of the massive stellar cluster Westerlund 1 [PDF]

, 2006
The goal of this study is to determine a distance to Westerlund 1 independent of the characteristics of the stellar population and to study its neutral environment, using observations of atomic hydrogen.
Karkowski, J., Malec, E., Roszkowski , K.   +2 more
core   +3 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Analysis of the infrared spectra of the peculiar post-AGB stars EPLyr and HD52961 [PDF]

, 2009
Aim: We aim to study in detail the peculiar mineralogy and structure of the circumstellar environment of two binary post-AGB stars, EPLyr and HD52961. Both stars were selected from a larger sample of evolved disc sources observed with Spitzer and show ...
Abia, Antoniucci, Bregman, Bujarrabal, C. Dominik, C. Gielen, Cami, Cohen, Cohen, Cohen, De Ruyter, De Ruyter, Deroo, Deroo, Deroo, Dominik, Dullemond, Dullemond, Furlan, García-Hernández, Gielen, Gielen, Giridhar, Gonzalez, Gutenkunst, H. Van Winckel, Hildebrand, Hinkle, Hony, Hony, Hony, Houck, Izumiura, Johnson, Jura, Jura, Jura, Jura, Justtanont, Kemper, Kessler-Silacci, Kraemer, Kwok, L. B. F. M. Waters, Lattanzio, Little-Marenin, Lloyd Evans, Lloyd Evans, Lugaro, M. Matsuura, M. Min, Mastrodemos, Matsuura, McSaveney, Menut, Miyake, Molster, Molster, Ohnaka, Ohnaka, P. Deroo, Peeters, Peeters, Preston, Reyniers, Reyniers, Rothman, Ryde, Schertl, Schneller, Sloan, Sloan, Sloan, Sloan, Sloan, Sylvester, Tielens, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Volk, Waelkens, Waelkens, Waters, Waters, Waters, Werner, Willacy, Yamamura, Zsoldos   +93 more
core   +3 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

A temporal study of oxygen-rich pulsating variable AGB star, T Cep: Investigation on dust formation and dust properties

, 2011
Pulsation is believed to be the leading cause of dusty mass loss from Asymptotic Giant Branch (AGB) stars. We present a temporal study of T Cep, a long-period Mira variable, using seven ISO SWS spectra, covering a 16-month period over a single pulsation ...
Angela K. Speck, Begemann, Begemann, Benitez, Blommaert, Bohren, Bohren, Bose, Cami, Cami, Cami, Castelaz, Chiar, Corman, Crovisier, de Graauw, DePew, Dijkstra, Gail, Gervais, Hao, Henning, Huffman, Isles, Jäger, Jäger, Kessler, Koike, Lebzelter, Lodders, Marsakova, McDonald, McDonald, Molster, Murata, Nogami, Onaka, Perrin, Perryman, Schweitzer, Sloan, Sloan, Sloan, Spoon, Stroud, Suklima Guha Niyogi, Takashi Onaka, Takigawa, Thompson, Tielens, Tsuji, Van Malderen, Vollmer, Waelkens, Waters, Weigelt, Werner, Woolf, Yamamura, Zijlstra   +59 more
core   +1 more source