Relevant bibliographies by topics / B ring system

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'B ring system'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "B ring system"

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Gopinath, S., K. Sethusankar, Helen Stoeckli-Evans, Muhamad Rafiq, and Arasambattu K. Mohanakrishnan. "Crystal structure of 6-(p-tolyl)benzo[b]naphtho[2,3-d]thiophene and of an orthorhombic polymorph of 7-phenylanthra[2,3-b]benzo[d]thiophene." Acta Crystallographica Section E Crystallographic Communications 72, no. 9 (2016): 1310–14. http://dx.doi.org/10.1107/s2056989016012937.

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The title compounds, C23H16S, (I), and C26H16S, (II), are benzothiophene derivatives in which the benzothiophene moiety is fused with a naphthalene ring system in (I), and with an anthracene ring system in (II). In (I), the mean plane of the benzothiophene ring system makes a dihedral angle of 2.28 (6)° with the naphthalene ring system, and a dihedral angle of 1.28 (6)° with the anthracene ring system in (II), showing that the fused units are essentially planar. In (I), the 4-methylbenzene ring substituent makes a dihedral angle of 71.40 (9)° with the naphthalene ring system, while the phenyl
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Nicolaou, K. C., C. K. Hwang, and M. E. Duggan. "Synthesis of the brevetoxin B IJK ring system." Journal of the American Chemical Society 111, no. 17 (1989): 6682–90. http://dx.doi.org/10.1021/ja00199a031.

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Olesen, Preben H., John B. Hansen, and Mogens Engelstoft. "Thieno[2,3-b]indole. The unsubstituted ring system." Journal of Heterocyclic Chemistry 32, no. 5 (1995): 1641–42. http://dx.doi.org/10.1002/jhet.5570320540.

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Feng, Fei, and Akio Murai. "Synthesis of the A- and B-Ring System of Hemibrevetoxin-B." Chemistry Letters 24, no. 1 (1995): 23–24. http://dx.doi.org/10.1246/cl.1995.23.

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Suarato, Antonino, Francesco Angelucci, and Cristina Geroni. "Ring-B Modified Anthracyclines." Current Pharmaceutical Design 5, no. 3 (1999): 217–27. http://dx.doi.org/10.2174/1381612805666230109215627.

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One of the most investigated classes of antitumor drugs is represented by anthracyclines. Over thirty years since the original discovery of daunorubicin and doxorubicin thousands of anthracycline analogues have been synthesized and tested to identify compounds superior to the parent drugs in terms of increased therapeutic effectiveness, reduced toxicity or both. Previous structure-activity studies had shown that minor modifications of the anthracycline structure can result not only in active agents, but, more importantly, analogues with reduced cardiotoxicity and activity on multi drug resista
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McGowan, Craig A., Ann-Kathrin Schmieder, Lee Roberts, and Michael F. Greaney. "Synthesis of the guanacastepene A–B hydrazulene ring system through photochemical ring transposition." Org. Biomol. Chem. 5, no. 10 (2007): 1522–24. http://dx.doi.org/10.1039/b704865c.

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Aran, Vicente J., Nazario Martin, Carlos Seoane, Jose L. Soto, Juliana Sanz-Aparicio, and Feliciana Florencio. "A novel ring system: 6a-aminofuro[2,3-b]furans." Journal of Organic Chemistry 53, no. 22 (1988): 5341–43. http://dx.doi.org/10.1021/jo00257a025.

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Matsukura, Hiroko, Masamichi Morimoto, and Tadashi Nakata. "Stereoselective Synthesis of ABC-Ring System of Hemibrevetoxin B." Chemistry Letters 25, no. 6 (1996): 487–88. http://dx.doi.org/10.1246/cl.1996.487.

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Nicolaou, K. C., M. E. Duggan, and C. K. Hwang. "Synthesis of the ABC ring system of brevetoxin B." Journal of the American Chemical Society 111, no. 17 (1989): 6666–75. http://dx.doi.org/10.1021/ja00199a029.

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Nicolaou, K. C., M. E. Duggan, and C. K. Hwang. "Synthesis of the FG ring system of brevetoxin B." Journal of the American Chemical Society 111, no. 17 (1989): 6676–82. http://dx.doi.org/10.1021/ja00199a030.

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Dissertations / Theses on the topic "B ring system"

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EPLEE, ROBERT EUGENE JR. "SPOKES IN SATURN'S B RING: DYNAMICAL AND PHYSICAL PROPERTIES DEDUCED FROM VOYAGER SATURN RING IMAGES." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184056.

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The two Voyager spacecraft discovered small-scale, radially-extended features in the central region of Saturn's B Ring. These "spokes" are "clouds" of submicron-size ice grains which are electrostatically levitated above the ring plane and which appear to travel about Saturn in Keplerian orbits (Smith et al., 1981, Science 212, 163-191). This research project is a study of the dynamical and physical properties of spokes as deduced from Voyager Saturn ring images. An analysis of the orbital motion of two dynamically-anomalous spokes, in particular, has set limits on the charge-to-mass ratios of
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Horn, Mark A. "Studies toward the synthesis of the A-B ring system of lavendamycin methyl ester." Virtual Press, 1987. http://liblink.bsu.edu/uhtbin/catkey/515490.

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The synthesis of 7-amino-2-methylquinoline-5-8-dione (17) and 7-amino-3-methylquinoline-5,8-dione (157) are described.7-Amino-3-methylquinoline-5,8-dione (157) was prepared via alkaline hydrolysis of 7-acetamido-3-methylquinoline5,8-dione (149). 7-Acetamido-3-methylquinoline-5,8-dione (149) was prepared via the Diels-Alder reaction of 2-acetamido-6-bromo-1,4-benzoquinone (6) and 2-methyl-2propenal dimethylhydrazone (110).7-Amino-2-methylquinoline-5,8-dione (17) was prepared by the acid hydrolysis of 7-(triphenylphosphineimino)-2methylquinoline-5,8-dione (16). 7-(Triphenylphosphineimino)2-methy
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Merica, Alexandru. "1. Tandem radical reactions in natural product synthesis, 2. An approach to the A/B ring system of abeotaxanes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ33313.pdf.

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Diep, Nhut Kiet. "Studies of nucleophile ring opening of oxabicyclic systems in highly polar media application to a total synthesis of antitumor agent, (-)-epothilone B /." Diss., Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/diep/DiepN0806.pdf.

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Polyketides constitute an important family of natural products, having a broad spectrum of biological activity such as antitumor, antibiotic, antifungal, or immunomodulatory action.¹ Many of these compounds possess polypropionates (units with alternating hydroxyl and methyl groups), reflecting their common biosynthesis that is found within nature. Their structural complexity and importance of these compounds as therapeutical agents have made them attractive targets for synthetic organic chemists.¹ Excellent chiral propionate reagents have been developed over the years,
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Taşpınar, Ömer [Verfasser]. "Synthesis of Marine Steroids with Unusual Ring Systems: Eurysterol A and DELTA24-Dihydro-6-epi-Monanchosterol A and Total Synthesis of Houttuynoid B-Derivatives as Potential Antiviral Agents / Ömer Taşpınar." München : Verlag Dr. Hut, 2021. http://d-nb.info/1232847011/34.

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Babu, R. Ramesh. "Total Synthesis Of Sesquiterpenes Acorenols, Chamigrenes And Laurokamurene B; And Enantiospecific Synthesis Of ABC-Ring System Of A-Nor And Abeo Pentacyclic Triterpenes." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1022.

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Among Nature’s creation, terpenoids are more versatile and exciting natural products. In a remarkable display of synthetic ingenuity and creativity, nature has endowed terpenes with a bewildering array of carbocyclic frameworks with unusual assemblage of rings and functionalities. This phenomenal structural diversity of terpenes make them ideal targets for developing and testing new synthetic strategies for efficient articulation of carbocyclic frameworks. The thesis entitled “Total synthesis of sesquiterpenes acorenols, chamigrenes, and laurokamurene B; and Enantiospecific synthesis of ABC-ri
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Babu, R. Ramesh. "Total Synthesis Of Sesquiterpenes Acorenols, Chamigrenes And Laurokamurene B; And Enantiospecific Synthesis Of ABC-Ring System Of A-Nor And Abeo Pentacyclic Triterpenes." Thesis, 2009. http://hdl.handle.net/2005/1022.

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Among Nature’s creation, terpenoids are more versatile and exciting natural products. In a remarkable display of synthetic ingenuity and creativity, nature has endowed terpenes with a bewildering array of carbocyclic frameworks with unusual assemblage of rings and functionalities. This phenomenal structural diversity of terpenes make them ideal targets for developing and testing new synthetic strategies for efficient articulation of carbocyclic frameworks. The thesis entitled “Total synthesis of sesquiterpenes acorenols, chamigrenes, and laurokamurene B; and Enantiospecific synthesis of ABC-ri
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Books on the topic "B ring system"

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Hanaoka, Kenji. Design of a transverse feedback system agaisnt multi bunch beam oscillation due to impedance in the KEK B-factory rings. National Laboratory for High Energy Physics, 1995.

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Voll, Reinhard E., and Barbara M. Bröker. Innate vs acquired immunity. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199642489.003.0048.

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The innate and the adaptive immune system efficiently cooperate to protect us from infections. The ancient innate immune system, dating back to the first multicellular organisms, utilizes phagocytic cells, soluble antimicrobial peptides, and the complement system for an immediate line of defence against pathogens. Using a limited number of germline-encoded pattern recognition receptors including the Toll-like, RIG-1-like, and NOD-like receptors, the innate immune system recognizes so-called pathogen-associated molecular patterns (PAMPs). PAMPs are specific for groups of related microorganisms
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Book chapters on the topic "B ring system"

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Guiver, J. P. "The Equation Ax = b over the Ring ℂ[z, w]." In Multidimensional Systems Theory. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5225-6_7.

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Guiver, J. P. "The Equation Ax = b Over the Ring ℂ[z, w]." In Multidimensional Systems Theory and Applications. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-017-0275-1_3.

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"1. By Construction of the System." In Carbocyclic Three- and Four Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-112545.

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"Heterocycles in Chemical Biology: II. Vitamins." In The Chemical Biology of Carbon. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839169502-00306.

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This chapter on biologic nitrogenous heterocycles deals exclusively with the coenzymatically active forms of vitamins. Seven of the eight B vitamins use heterocyclic chemistry, each one a separate ring system, to mediate chemical transformations at key nodal metabolic intersections. The heterocycles include single ring heterocycles: the thiazolium ion in thiamin-PP, the cationic pyridinium in NAD(P)+, and the pyridine aldehyde in pyridoxal-P. Bis-heterocyclic rings include biotin and folate coenzymes. Riboflavin offers a tricyclic isoalloxazine ring system and B12 a tetrapyrrolic framework. Th
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"A. Synthesis : 1. By Construction of the System (I)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110772.

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"A. Synthesis : 1. By Construction of the System (II)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110773.

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"A. Synthesis : 1. By Construction of the System (III)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110774.

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"A. Synthesis : 1. By Construction of the System (IV)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110775.

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"A. Synthesis : 1. By Construction of the System (V)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110776.

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"A. Synthesis : 1. By Construction of the System (VI)." In Carbocyclic Three- and Four-Membered Ring Compounds, edited by Armin de Meijere. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-110777.

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Conference papers on the topic "B ring system"

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Punter, Arjen. "Full Scale SSC Testing of High Hardness 4130 Steel Riser P-line Weldments." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01237.

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Abstract American Petroleum Institute (API) standard 16C, Choke and Kill System, requires that peripheral lines (P-lines) meet the hardness requirements of NACE(1) MR0175/ISO15156-2. This means a maximum hardness of 22HRC for low alloy steels. Further, NACE MR0175/ISO15156-2 allows downhole casing, tubing and tubular components made of AISI 41xx steels, quenched and tempered in tubular form, to have a hardness of 26HRC, but each heat should be qualified by Sulfide Stress Cracking (SSC) testing in accordance with NACE MR0175/ISO15156-2 Clause B.1 using the tensile test. During production of AIS
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Schmitz, Sven, Jason Cornelius, Gracelyne Allred, et al. "NASA Dragonfly Mission – Coaxial Rotor Test & CFD Prediction." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-281.

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A fixed-pitch speed-controlled coaxial rotor system (Dragonfly Phase B*) was tested in the NASA Langley Transonic Dynamics Tunnel (TDT). The rotors have a diameter (D) of 1.35 meters and an inter-rotor spacing of 0.3375 meters, or D/4. The primary objective of the TDT test was to experimentally measure rotor performance of a candidate full-scale flight rotor for the Dragonfly program, NASA's 4th New Frontiers Mission, in an atmosphere as close as possible to that on Saturn's largest moon Titan. The TDT heavy gas (HG) test setup provided Mach scaled data at one-third chord-based Reynolds number
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Di Stefano, Robert, and Allen E. Feltzin. "Effect of Upset Conditions on Various Cooling Water Inhibitor Programs." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90356.

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Abstract Results of tests with three non-chromate cooling water treatment programs in a model, open recirculating cooling water system1 are reported. The paper deals with the rate of inhibitor film formation under normal operating conditions and the rate of film breakdown under stressed conditions corresponding to loss of inhibitor and dispersant feed. The test rig utilized instantaneous corrosion rate monitoring with timed-rate data logging as well as conventional corrosion coupons, a test heat exchanger, and electrically heated tubular specimens. The programs tested are identified as (A) : p
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Ehret, Klaus. "HERA-B: An Experiment to study CP Violation in the B System Using an Internal Target at the HERA Proton Ring." In Proceedings of the 2nd International Conference. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814503952_0004.

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Zhang, Lingzhu, and Alain CHIARADIA. "How to design the metro network for maximal accessibility potential? A comparative analysis of Shanghai." In 24th ISUF 2017 - City and Territory in the Globalization Age. Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/isuf2017.2017.4975.

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In Shanghai, the high-capacity metro network has been proved to play an important role in the urban movement and urban morphology generating pattern. Previous studies on the metro network analysis such as London Underground network (Chiaradia, 2005) and Shanghai Metro network (Zhang, 2014) have shown that topological configuration of metro network can explain at least 50% of entry/exit movement at metro stations. The Shanghai metro network uses a core ring (Inner ring Line 4) to encircle a core of stations which are characterized by higher line connectivity. Branches radiate from the core and
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Sebastian, Anish, Parmod Kumar, Marco P. Schoen, Alex Urfer, Jim Creelman, and D. Subbaram Naidu. "Analysis of EMG-Force Relation Using System Identification and Hammerstein-Wiener Models." In ASME 2010 Dynamic Systems and Control Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/dscc2010-4185.

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Surface Electromyographic (sEMG) signals have been exploited for almost a century, for various clinical and engineering applications. One of the most compelling and altruistic applications being, control of prosthetic devices. The study conducted here looks at the modeling of the force and sEMG signals, using nonlinear Hammerstein-Weiner System Identification techniques. This study involved modeling of sEMG and corresponding force data to establish a relation which can mimic the actual force characteristics for a few particular hand motions. Analysis of the sEMG signals, obtained from specific
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San Andrés, Luis, Vince Barbarie, Avijit Bhattacharya, and Kostandin Gjika. "On the Effect of Thermal Energy Transport to the Performance of (Semi)Floating Ring Bearing Systems for Automotive Turbochargers." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68355.

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Bearing systems in engine-oil lubricated turbochargers (TCs) must operate reliably over a wide range of shaft speeds and withstanding severe axial and radial thermal gradients. An engineered thermal management of the energy flows into and out of the bearing system is paramount to ensure the components mechanical integrity and the robustness of the bearing system. The bearings, radial and thrust type, act both as a load bearing and low friction support with the lubricant carrying away a large fraction of the thermal energy generated by rotational drag and the heat flow disposed from a hot shaft
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Wei, T. H., M. J. Sence, E. W. vanStryland, et al. "Nonlinear absorption studies in metallophthalocyanines." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thaa4.

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Solutions of metallophthalocyanines and metallonaphthalocyanines have recently attracted attention because of the large optical nonlinearities observed in these materials. These nonlinearities arise from the fact that the materials possess a delocalized electronic system confined in the macrocyclic ring plane. The linear absorption spectrum of these systems exhibits two sets of absorptions bands, which are associated with the transitions in the macrocyclic ring system. In addition, these compounds exhibit an excited-state absorption in the energy range between the Q- and B-bands, where the lin
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Yetkin, Oguz, Karmina Calderon, Prissha Krishna Moorthy, et al. "A Lightweight Wearable American Sign Language Translation Device." In 2022 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/dmd2022-1053.

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Abstract A lightweight wearable American Sign Language translation device is presented consisting of optically communicating rings worn on each finger and wireless devices worn on each fingernail. The device is similar in principle to glove based sign language translation devices except it does not require the user to wear an entire glove. Each ring is constructed from optically clear resin containing three infrared transponders, controlled by a microcontroller unit worn on the wrist. The fingernail units are also cast in clear resin and contain circuitry to receive and respond to infrared lig
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Bogojević, Dragan. "PRIMER PRIMENE TELEKOMUNIKACIONIH I OPERACIONIH TEHNOLOGIJA U JEDNOM EKOLOŠKOM PROJEKTU U ELEKTROPRIVREDI." In 35. Savetovanje Srpskog nacionalnog komiteta Međunarodnog saveta za velike električne mreže. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre35.1230b.

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In order to more efficiently protect the environment, environmental projects in the electricity industry are becoming more common, especially in the thermal sector. This paper describes the distributed system for industrial waste water treatment in the Public Company "Electric Power Industry of Serbia", in the thermal power plant Kostolac B, from the aspect of telecommunication and operational technologies. The system consists of three plants, each with a separate SCADA management system with different wastewater treatment processes. The plants are interconnected by optical infrastructure, whi
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Reports on the topic "B ring system"

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Barletta, W. An injection system for PEP-based asymmetric storage ring collider for the copious production of B mesons. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5303287.

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Barletta, W. Design of the Vacuum System for the High Energy Ring of an Asymmetric B-Factory Based on PEP. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/839842.

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Gantt, Elisabeth, Avigad Vonshak, Sammy Boussiba, Zvi Cohen, and Amos Richmond. Carotenoid-Rich Algal Biomass for Aquaculture: Astaxanthin Production by Haematococcus Pluvialis. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7613036.bard.

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The synthesis of carotenoids has been studied toward enhancing the production of ketocarotenoids, since fish and crustaceans raised by aquaculture require astaxanthin and other ketocaroteinoids in their feed for desirable pigmentation. Notable progress has been made in attaining the goals of determining improved conditions for ketocarotenoid production in Haematococcus pluvialis and in elucidating the carotenoid biosynthetic pathway. For production of astaxanthin a number of strains of the green alga Haematococcus were evaluated, a strain CCAG was found to be optimal for photoautotrophic growt
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Kanner, Joseph, Edwin Frankel, Stella Harel, and Bruce German. Grapes, Wines and By-products as Potential Sources of Antioxidants. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7568767.bard.

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Several grape varieties and red wines were found to contain large concentration of phenolic compounds which work as antioxidant in-vitro and in-vivo. Wastes from wine production contain antioxidants in large amounts, between 2-6% on dry material basis. Red wines but also white wines were found to prevent lipid peroxidation of turkey muscle tissues stored at 5oC. The antioxidant reaction of flavonoids found in red wines against lipid peroxidation were found to depend on the structure of the molecule. Red wine flavonoids containing an orthodihydroxy structure around the B ring were found highly
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