Results 31 to 40 of about 247,916 (353)

Accretion of gas by globular cluster stars [PDF]

, 2001
Some recent observations of the abundances of s-process, r-process, and alpha elements in metal-poor stars have led to a new scenario for their formation.
Armosky, Bahcall, Bell, Bell, Bondi, Boothroyd, Briley, Briley, Briley, Briley, Brown, Cannon, Capaccioli, Charbonnel, Cottrell, Cox, D'Antona, Dickens, Dinescu, Dull, Eggen, Faulkner, Faulkner, Faulkner, Freire, Gebhardt, Goriely, Gratton, Gratton, Grillmair, Grundhal, Hanson, Harris, Hilker, Jehin, Jehin, Jorissen, Jurcsik, King, King, Knapp, Knapp, Kraft, Lee, Lehman, Leon, Lloyd Evans, Lloyd Evans, Lloyd Evans, Majewski, Mandushev, Mayor, Mayor, McClure, Meylan, Meylan, Mowlavi, Norris, Norris, Norris, North, Odenkirchen, Pancino, Parmentier, Parmentier, Parmentier, Pilachowski, Piotto, Preston, Proffitt, Proffitt, Scott, Scott, Searle, Shetrone, Smith, Smith, Smith, Sneden, Spergel, Suntzeff, VandenBerg, VandenBerg, Vanture, Ventura, Weidemann, Woosley   +86 more
core   +1 more source

Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]

BioResources, 2012
The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage.
Kyujeong Sim, Hye Jung Youn, Hwi Cho, Heenae Shin, Hak Lae Lee   +4 more
doaj  

Optimality in Quantum Data Compression using Dynamical Entropy

, 2019
In this article we study lossless compression of strings of pure quantum states of indeterminate-length quantum codes which were introduced by Schumacher and Westmoreland.
Androulakis, George, Wright, Duncan
core   +1 more source

Abundances in giant stars of the globular cluster NGC 6752 [PDF]

, 2005
Recent theoretical yields and chemical evolution models demonstrate that intermediate-mass AGB stars cannot reproduce the observed abundance distributions of O, Na, Mg, and Al.
Abia, Alonso, Aoki, Bell, Bonifacio, Bonifacio, Briley, Brown, Brown, Buonanno, Burris, Busso, Böhm-Vitense, Cannon, Carretta, Carretta, Castilho, Cavallo, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cohen, Cottrell, Cowan, D'Odorico, D. L. Lambert, D. Yong, Da Costa, Den Hartog, Denissenkov, Denissenkov, F. Grundahl, Fenner, Freeman, Fulbright, Gonzalez, Gratton, Gratton, Gratton, Gratton, Gratton, Grundahl, Grundahl, H. R. Jensen, Harris, Helfer, Hesser, Hesser, Hill, Ivans, Ivans, James, James, Johnson, Kraft, Kraft, Kraft, Kraft, Lambert, Lambert, Lattanzio, Lawler, Lawler, McWilliam, McWilliam, McWilliam, Minniti, Minniti, Norris, Norris, Osborn, P. E. Nissen, Peebles, Penny, Peterson, Popper, Prochaska, Qian, Ramírez, Ramírez, Reddy, Shetrone, Shetrone, Simmerer, Simmerer, Sneden, Sneden, Sneden, Sneden, Sneden, Sneden, Sneden, Sneden, Stetson, Suntzeff, Sweigart, Thoul, Tomkin, Travaglio, Vandenberg, VandenBerg, Wasserburg, West, Westin, Yong, Zhao, Zinn, Zoccali   +111 more
core   +3 more sources

PRIMARY IDENTIFICATION OF EUCALYPTUS (Eucalyptus camaldulensis) WOOD LIGNIN MONOMERS BY FT-IR SPECTROSCOPY [PDF]

Mesopotamia Journal of Agriculture, 2007
Lignin samples were isolated from Eucalypt wood (Eucalyptus camaldulensis) by kraft process, and then all samples were examined and tested with Fourier Transform Infrared Instrument Technique for identifying the types of lignin monomers units from their ...
Esam Mohammed Sheet
doaj   +1 more source

Process for purification of waste water produced by a Kraft process pulp and paper mill [PDF]

, 1979
The water from paper and pulp wastes obtained from a mill using the Kraft process is purified by precipitating lignins and lignin derivatives from the waste stream with quaternary ammonium compounds, removing other impurities by activated carbon produced
Humphrey, M. F.
core   +1 more source

Swelling‐Induced Stress‐Assisted Transfer of Nanodiamond Arrays With a PVA Carrier Tape for Conformal Bio‐Integrated Sensing and Labelling

Advanced Functional Materials, EarlyView.
This work introduces a swelling‐induced, stress‐assisted water‐soluble PVA tape strategy to transfer‐print nanodiamond quantum‐sensor arrays onto soft, curved biological interfaces. The room‐temperature, water‐triggered process achieves >98% fidelity and residue‐free integration, enabling conformal quantum sensing on contact lenses, neural probes, and ...
Luyao Zhang, Lingzhi Wang, Xinhao Hu, Tai Nam Yip, Mingze Sun, Jixiang Jing, Lizhi Xu, Yuan Lin, Yong Hou, Zhiqin Chu   +9 more
wiley   +1 more source

Tailoring Hydrogel Structures: Investigating the Effects of Multistep Cellulose Defibrillation on Polyvinyl Alcohol Composites

Gels
Defibrillating cellulose through various grinding steps and incorporating it into hydrogels introduces unique properties that warrant thorough exploration.
Gabriel Goetten de Lima, Bruno Bernardi Aggio, Alessandra Cristina Pedro, Tielidy A. de M. de Lima, Washington Luiz Esteves Magalhães   +4 more
doaj   +1 more source

Study of the reactivity of Kraft and organosolv lignins with 4, 4’–diphenylmethane diisocyanate and characterization of the obtained products [PDF]

, 2011
The interaction of two types of lignins: Kraft lignin (KL), isolated according to the LignoBoost process (Sweden), and Alcell organosolv (OL) lignin (Canada), with 4,4’-diphenylmethane diisocyanate (MDI) in the dry dioxane media at 25 degrees of Celsius,
Arshanitsa, Alexandr, Janceva, Sarmite, Krumina, Lelde, Telysheva, Galina   +3 more
core  

Effect of Process Variables on the Solvolysis Depolymerization of Pine Kraft Lignin [PDF]

Waste and Biomass Valorization, 2019
Lignin modification opens the possibility of using it in polyol bio-based polymers, such as phenol–formaldehyde resins, polyurethanes, composites, and binders. Pine kraft lignin Indulin AT was partially depolymerized and the resulting products analyzed to determine their degree of valorization.
Werner Marcelo Goldmann, Jinto Manjaly Anthonykutty, Juha Ahola, Sanna Komulainen, Sami Hiltunen, Anu M. Kantola, Ville-Veikko Telkki, Juha Tanskanen   +7 more
openaire   +2 more sources