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Journal articles on the topic 'C:N ratio'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ritchey, A. M., S. R. Federman, and D. L. Lambert. "THE C 14 N/C 15 N RATIO IN DIFFUSE MOLECULAR CLOUDS." Astrophysical Journal 804, no. 1 (2015): L3. http://dx.doi.org/10.1088/2041-8205/804/1/l3.

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2

Kaiser, Mary E., Edward L. Wright, and Isabel Hawkins. "The interstellar (C-12)N/(C-13)N ratio toward Zeta Persei." Astrophysical Journal 379 (September 1991): 267. http://dx.doi.org/10.1086/170500.

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3

Chanceline, Bahati Mutalemba, Mugaruka Mashimango Etienne, Kubisibwa Mulengera Godefroid, and Habamungu Shalukoma Soleil. "The Study of the C/N Ratio in the Domestic Biogas Usable Wastes: A Case Study of Irhambi/Katana." Greener Journal of Environmental Management and Public Safety 3, no. 2 (2014): 26–34. https://doi.org/10.15580/gjemps.2014.2.042914212.

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This article is on the study of the C/N ratio in the domestic biogas usable wastes. The global objective was to detect the concentration of nitrogen and carbon, the determination of the ratio as well as their connection in the different types of biogas usable wastes. The authors took samples, tested and studied it in laboratories in Lwiro and others were done in the National Program of Biogas for Burkina-Faso 2005. To observe the concentration and connection, the correlation test wad used.  The Kjeldhal method and the statistic one have allowed attending results. The test for th

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4

Sobieszuk, P., and K. W. Szewczyk. "Estimation of (C/N) Ratio for Microbial Denitrification." Environmental Technology 27, no. 1 (2006): 103–8. http://dx.doi.org/10.1080/09593332708618624.

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5

Thomsen, Ingrid K., Bjørn M. Petersen, Sander Bruun, Lars S. Jensen, and Bent T. Christensen. "Estimating soil C loss potentials from the C to N ratio." Soil Biology and Biochemistry 40, no. 3 (2008): 849–52. http://dx.doi.org/10.1016/j.soilbio.2007.10.002.

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6

Dang, Yanpei, Tianhao Li, Yangzhong Zhao, et al. "Polyborosilazanes with Controllable B/N Ratio for Si–B–C–N Ceramics." Materials 16, no. 3 (2023): 1053. http://dx.doi.org/10.3390/ma16031053.

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Polyborosilazanes with controllable B/N ratio were synthesized using high-boron-content m-carborane, dichloromethylsilane, and hexamethydisilazane. After high-temperature pyrolysis, Si–B–C–N quaternary ceramics with SiC and B4C as the main phases were obtained. The B/N ratio in the precursors corresponded to the change in the feeding ratio of carborane and dichloromethylsilane. The effects of boron content and B/N ratio on the ceramic precursors and microphase structure in Si–B–C–N quaternary ceramics were explored in detail through a series of analytical characterization methods. A high boron

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7

de Menezes, Alexandre B., Miranda T. Prendergast-Miller, Pabhon Poonpatana, et al. "C/N Ratio Drives Soil Actinobacterial Cellobiohydrolase Gene Diversity." Applied and Environmental Microbiology 81, no. 9 (2015): 3016–28. http://dx.doi.org/10.1128/aem.00067-15.

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ABSTRACTCellulose accounts for approximately half of photosynthesis-fixed carbon; however, the ecology of its degradation in soil is still relatively poorly understood. The role of actinobacteria in cellulose degradation has not been extensively investigated despite their abundance in soil and known cellulose degradation capability. Here, the diversity and abundance of the actinobacterial glycoside hydrolase family 48 (cellobiohydrolase) gene in soils from three paired pasture-woodland sites were determined by using terminal restriction fragment length polymorphism (T-RFLP) analysis and clone

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8

Zhao, Chen-hong, Yong-zhen Peng, Shu-ying Wang, and Akio Takigawa. "Effects of influent C/N ratio, C/P ratio and volumetric exchange ratio on biological phosphorus removal in UniFed SBR process." Journal of Chemical Technology & Biotechnology 83, no. 12 (2008): 1587–95. http://dx.doi.org/10.1002/jctb.1943.

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9

Takahashi, Toshiyuki, Takeshi Saito, Masaki Kobayashi, and Koji Hayashi. "Effects of N/(C+N) Atomic Ratio and Amount of Ti(C,N) on Chemical Reaction of Al2O3-Ti(C,N) Ceramics with Ni Plate." Journal of the Japan Society of Powder and Powder Metallurgy 47, no. 5 (2000): 534–40. http://dx.doi.org/10.2497/jjspm.47.534.

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10

Fauziyah, M.Si, Dr Nur Aini, and Kindriari Nurma Wahyusi Nurma Wahyusi. "C/N Ratio of Brem Waste Compost by Aerobic Method." ALCHEMY 10, no. 1 (2022): 22–26. http://dx.doi.org/10.18860/al.v10i2.12670.

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The preparation of compost from brem waste has been carried out with the aim of utilizing brem waste into more useful materials. In this work, brem waste was collected from UD.Tongkat Mas, Madiun, East Java. Brem waste compost was processed by aerobic method by adding eggshell powder and M-Bio activator. The M-Bio activator solution that was added was varied with the volume of the solution, i.e., 50, 75, 100, 125 and 150ml. Here, we gave the sample nomenclature of CM50, CM75, CM100, CM125, and CM150, respectively, with the numbers on the back side indicating the volume of M-Bio activator added

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11

Ndegwa, Pius M., and S. A. Thompson. "Effects of C-to-N ratio on vermicomposting of biosolids." Bioresource Technology 75, no. 1 (2000): 7–12. http://dx.doi.org/10.1016/s0960-8524(00)00038-9.

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12

Aziz, Rahmadi, Aldi Huda Verdian, and Adni Oktaviana. "PENGGUNAAN DEDAK PADI SEBAGAI SUMBER KARBON ORGANIK PADA BUDIDAYA IKAN LELE SANGKURIANG (Clarias gariepinus var) DI BAK TERPAL." Jurnal Perikanan Unram 12, no. 4 (2022): 746–54. http://dx.doi.org/10.29303/jp.v12i4.404.

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Komoditas ikan air tawar yang memiliki potensi untuk dikembangkan yaitu ikan lele sangkuriang (Clarias gariepinus var). Upaya yang dilakukan agar dapat mengembangkan dan meningkatkan produksi ikan lele yaitu melakukan budidaya dengan teknologi penambahan sumber karbon organik dalam meningkatkan pertumbuha bakteri heterotrof untuk merombak bahan organik di lingkungan budidaya. Penelitian ini bertujuan untuk mengetahui tingkat pertumbuhan, kelangsungan hidup, feed convertion ratio (FCR), dan rasio C/N terhadap keberhasilan budidaya ikan lele sangkuriang di bak terpal. Perlakuan yang diterapkan a

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13

Vranová, V., P. Formánek, K. Rejšek, and D. Janouš. "Stand heterogeneity of total carbon and nitrogen, and C/N ratio in soil of mountain meadows." Soil and Water Research 2, No. 4 (2008): 149–55. http://dx.doi.org/10.17221/2107-swr.

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This study was aimed at monitoring the relative and absolute stand heterogeneity of total carbon, total nitrogen and C/N ratio in Ah-Ae-Btg-Bt horizons of Gleyic Luvisol on one mountain meadow divided into two study plots: one moderately (once a season) mown (plant community of the Nardo-Callunetea class) and one abandoned for about 12 years (plant community of the Molinio-Arrhenatheretea class). The heterogeneities were evaluated more than 2 months after the mowing of the moderately mown meadow at the end of July 2005. Relative stand heterogeneity was expressed using coefficient of variation

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14

A. Karim, Nabila, Muhammad Syafiq Alias, Siti Kartom Kamarudin, and Norilhamiah Yahya. "N-Doped CNT: Distribution Electron on Different Ratio N/C for Oxygen Reduction Reaction." Jurnal Kejuruteraan 32, no. 4 (2020): 699–705. http://dx.doi.org/10.17576/jkukm-2020-32(4)-20.

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Carbon nanotubes (CNTs) have the advantage to improve electrochemical fuel cell reactions by increasing the dispersion of nanoparticles as well as having high strength in mechanical and electrical properties. Therefore, this study presents the comparison of nitrogen doped CNT and other doping heteroatom on CNT as a catalyst support for application in the Direct Liquid Fuel Cell (DLFC). The doping ratio in CNT was conducted to determine the effect of the oxygen reduction reaction. In addition, the effect of CNT diameter in oxygen adsorption also has been tested. The models and calculations were

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15

Fatou, MBAYE, DIENE Alassane, NGOM Baba, THIAM Mouhamadou, and WADE Mamadou. "Biogas Production from Fish Waste and Filao Litter." Journal of Scientific and Engineering Research 8, no. 11 (2021): 1–12. https://doi.org/10.5281/zenodo.10618917.

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<strong>Abstract</strong> The growing exploitation of fossil fuel reserves to meet the high demand of energy is becoming the main source of environmental pollution. So it urges to find safe, renewable and sustainable energy resources. This copes with Senegal new governmental energy policies which aim to decrease the dependence to fuel importations and wood consumption, as well as to develop renewable energies. In this context, valorization of waste into energy for productive uses has been identified, for Senegal, as an alternate for environmentally sustainable economic growth and progression t

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16

Chan, Wesley Ting Kwok, Ka Yan Karen Kung, and Man-kin Wong. "N,N′-(Ethane-1,2-diyl)bis(methanesulfonamide)." Acta Crystallographica Section E Structure Reports Online 70, no. 2 (2014): o152. http://dx.doi.org/10.1107/s1600536814000622.

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The molecular structure of the title compound, C4H12N2O4S2, has crystallographic inversion symmetry. The central N—C—C—N moiety was refined as disordered over two sets of sites with an approximate occupancy ratio of 3:1 [0.742 (15):0.258 (15). In the crystal, N—H...O hydrogen bonds link adjacent molecules into a thick sheet structure parallel to theb-axis direction.

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17

Ito, Haruhiko, Kenzo Hori, Kei-ichi C. Namiki, Kazuhiro Kanda, and Hidetoshi Saitoh. "Deposition of Mechanically Hard Amorphous Carbon Nitride Films with High [N]/([N]+[C]) Ratio." Japanese Journal of Applied Physics 45, no. 10B (2006): 8418–23. http://dx.doi.org/10.1143/jjap.45.8418.

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18

Ito, Haruhiko, Kazuhiro Kanda, and Hidetoshi Saitoh. "Deposition of mechanically hard amorphous carbon nitride films with high [N]/([N]+[C]) ratio." Diamond and Related Materials 17, no. 4-5 (2008): 688–91. http://dx.doi.org/10.1016/j.diamond.2007.08.013.

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19

Gao, Chun Di, Wei Xiao Wang, Shi Xin Fan, Hao Li, and Er Long Jiao. "Effect on Denitrification Efficiency in Alternating Process at Different C/N Ratio." Advanced Materials Research 1030-1032 (September 2014): 442–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.442.

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Nitrification-denitrification biological nitrogen removal process has become the hotspot for the wastewater. During carbon/nitrogen (C/N) ratio was 1.16, 2.25, 4.07 and 6.20, the change of denitrification efficiency and the impact on the partial nitrification/denitrification was investigated. The results showed that removal rate of ammonia nitrogen was maintained in the high level, and was stable above 98% after C/N ratio higher than 1.16. With C/N ratio increased, the removal rate of chemical oxygen demand was increased about 20%, total nitrogen was increased from 54.9% to 84.6%. Simultaneous

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20

Saputra, Trisno, Suharjono Triatmojo, and Ambar Pertiwiningrum. "Produksi Biogas dari Campuran Feses Sapi dan Ampas Tebu (Bagasse) dengan Rasio C/N yang Berbeda (Biogas Production from Mixture of Dairy Manure and Bagasse with Different C/N Ratio)." Buletin Peternakan 34, no. 2 (2012): 114. http://dx.doi.org/10.21059/buletinpeternak.v34i2.97.

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<p>he experiment was conducted to determine biogas quality produced from mixture of dairy manure and bagasse with different C/N ratio level, and to know the optimal mixture ratio. There were three group treatments based on C/N<br />ratio level : C/N ratio 22, 30, and 35 with three replications each. Nine units of 20 litre batch-feeding digesters were used during 30 days examination. The main data were BOD, COD, pH and VFA values, total biogas volume, and<br />methane value. C/N ratio of dairy manure and bagasse was 22, 12, and 198. Dry matter mixture was 7%. BOD value was dec

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21

Takamura, Noriko, and Toshio Iwakuma. "Nitrogen uptake and C : N : P ratio of epiphytic algae in the littoral zone of Lake Kasumigaura." Archiv für Hydrobiologie 121, no. 2 (1991): 161–70. http://dx.doi.org/10.1127/archiv-hydrobiol/121/1991/161.

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22

Zhao, C. H., Y. Z. Peng, S. Y. Wang, and X. G. Tang. "Influence of wastewater composition on biological nutrient removal in UniFed SBR process." Water Science and Technology 58, no. 4 (2008): 803–10. http://dx.doi.org/10.2166/wst.2008.392.

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The effects of influent C/N ratio and C/P ratio on biological nutrient removal performance were investigated in a lab-scale UniFed SBR apparatus treating real domestic wastewater. The results showed that TN removal efficiency increased as C/N ratio increased from 43.6% at 2.8 to 80.8% at 5.7. But when C/N ratio increased further, TN removal efficiency increased very slowly. This was because when C/N ratio was higher than 5.7, complete denitrification in the sludge blanket during feed/decant period had been achieved, TN removal efficiency during this period always kept the maximum value and onl

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23

Yakubova, Galina, Aleksandr Kavetskiy, Stephen A. Prior, and H. Allen Torbert. "Application of Neutron-Gamma Analysis for Determining Compost C/N Ratio." Compost Science & Utilization 27, no. 3 (2019): 146–60. http://dx.doi.org/10.1080/1065657x.2019.1630339.

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24

Neugebauer, M., P. Sołowiej, J. Piechocki, W. Czekała, and D. Janczak. "The influence of the C: N ratio on the composting rate." International Journal of Smart Grid and Clean Energy 6, no. 1 (2017): 54–60. http://dx.doi.org/10.12720/sgce.6.1.54-60.

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25

Risnawati, Maulia, Afif Bintoro, Surnayanti, Sugeng Prayitno Harianto, Machya Kartika Tsani, and Trio Santoso. "Analysis of C/N Ratio Content in Market Waste Compost Fertilizer." Environmental and Earth Sciences Research Journal 11, no. 3 (2024): 72–78. http://dx.doi.org/10.18280/eesrj.110304.

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26

Tripetchkul, Sudarut, Kanokwan Pundee, Songpon Khunsrisuk, and Saengchai Akeprathumchai. "Influence of initial C/N ratio on composting of coir pith." Journal of Biotechnology 150 (November 2010): 268–69. http://dx.doi.org/10.1016/j.jbiotec.2010.09.176.

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27

Li, Jiuling, Jianzheng Li, Jia Meng, and Kai Sun. "Understanding of signaling molecule controlled anammox through regulating C/N ratio." Bioresource Technology 315 (November 2020): 123863. http://dx.doi.org/10.1016/j.biortech.2020.123863.

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28

Zhou, Guoyi, Shan Xu, Philippe Ciais, et al. "Climate and litter C/N ratio constrain soil organic carbon accumulation." National Science Review 6, no. 4 (2019): 746–57. http://dx.doi.org/10.1093/nsr/nwz045.

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Abstract Soil organic carbon (SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China's forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio (C/N) and high wetness index (P/PET, precipitation-to-

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29

Cho, Ji-Min, and Yeong-Kwan Kim. "Influence of C/N ratio on biofim growth in tap water." Journal of the Korean Society of Water and Wastewater 32, no. 6 (2018): 527–33. http://dx.doi.org/10.11001/jksww.2018.32.6.527.

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30

Fortuné, Rose-Verla, Emilie Verguet, Paul O. Oguadinma та Frank Schaper. "[N,N′-Bis(2,6-dimethylphenyl)pentane-2,4-diiminato-κ2 N,N′]trichlorido(tetrahydrofuran-κO)zirconium". Acta Crystallographica Section E Structure Reports Online 63, № 11 (2007): m2822. http://dx.doi.org/10.1107/s160053680704322x.

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The nacnac (pentane-2,4-diiminato) ligand in the title compound, [Zr(C21H25N2)Cl3(C4H8O)], displays a κ2-coordination to the Zr center. Three chlorido ligands and a coordinated tetrahydrofuran (THF) molecule complete the octahedral environment of the metal. Despite the C 2 symmetry observed in the 1H NMR spectrum, the THF molecule is found trans to one of the N atoms of the nacnac ligand. The asymmetric unit contains two molecules. In one THF ligand one C atom and four H atoms are disordered over two sites in the ratio ca 0.58:0.42.

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31

Sherby, Oleg D., Jeffrey Wadsworth, D. R. Lesuer, and C. K. Syn. "The c/a Ratio in Quenched Fe-C and Fe-N Steels - A Heuristic Story." Materials Science Forum 539-543 (March 2007): 215–22. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.215.

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The body-centered tetragonal (BCT) structure in quenched Fe-C steels is usually illustrated to show a linear change in the c and a axes with an increase in carbon content from 0 to 1.4%C. The work of Campbell and Fink, however, shows that this continuous linear relationship is not correct. Rather, it was shown that the body-centered-cubic (BCC) structure is the stable structure from 0 to 0.6 wt%C with the c/a ratio equal to unity. An abrupt change in the c/a ratio to 1.02 occurs at 0.6 wt%C. The BCT structure forms, and the c/a ratio increases with further increase in carbon content. An identi

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32

Sari, Injilia Pebrina. "Study Of Signal Quality Relationship On The Number Of Clusters And Propagation Parameters In Mobile Comumunication." Jurnal Mekintek : Jurnal Mekanikal, Energi, Industri, Dan Teknologi 11, no. 2 (2020): 53–58. http://dx.doi.org/10.35335/mekintek.v11i2.14.

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A suitable telecommunications system to support a mobile communication system is a wireless communication system, which is a radio communication system complete with transmitting antennas and radio equipment. To be able to cover such a wide coverage, the coverage area is divided into sub-areas called cells. A collection of several cells is called a cluster, and several clusters will form a mobile cellular communication network area. The number of clusters in an area is affected by changes in parameters, especially the pathloss from the propagation environment. Planning in designing a communica

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33

Srinivas, Kasulla, J. Malik S, Kathpal Gaurav, and Yadav Anjani. "Biogas Production from Water Hyacinth and Cow dung." International Journal of Trend in Scientific Research and Development 7, no. 4 (2023): 500–503. https://doi.org/10.5281/zenodo.8213991.

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In the quest for sustainable and eco-friendly energy solutions, renewable energy biogas technology stands out as a promising option, offering zero-waste energy generation. River water hyacinths, known for their rapid and abundant growth, hold great potential in this domain. Rich in cellulose, nitrogen, essential nutrients, and fermentable components, water hyacinth leaves present an ideal source for biogas fuel production. Notably, their high hemicellulose content allows for efficient biogas generation. This study focuses on harnessing the biogas potential of water hyacinths readily available

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34

Spohn, M. "Microbial respiration per unit microbial biomass depends on soil litter carbon-to-nitrogen ratio." Biogeosciences Discussions 11, no. 10 (2014): 15037–51. http://dx.doi.org/10.5194/bgd-11-15037-2014.

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Abstract. Soil microbial respiration is a central process in the terrestrial carbon (C) cycle. In this study I tested the effect of the carbon-to-nitrogen (C : N) ratio of soil litter layers on microbial respiration in absolute terms and per unit microbial biomass C. For this purpose, a global dataset on microbial respiration per unit microbial biomass C – termed the metabolic quotient (qCO2) – was compiled form literature data. It was found that the qCO2 in the soil litter layers was positively correlated with the litter C : N ratio and negatively related with the litter nitrogen (N) concentr

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35

Nitu, Kumari, Garg Namit, Gupta Kapil, Gupta Jitendra, Rahul, and Dube Amitabh. "NUCLEO-CYTOPLASMIC ALTERATIONS OF BUCCAL CELLS IN IRON DEFICIENCY ANEMIA." International Journal of Basic and Applied Physiology 7, no. 1 (2018): 122–27. https://doi.org/10.5281/zenodo.4481632.

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Background & Objectives: Although iron deficiency is associated with constant involvement of oral mucosa, the effect of iron on cell cycle inhibitory molecules has been superficially studied. The present study was undertaken to evaluate changes in Nuclear Diameter (ND), Cytoplasmic Diameter (CD) and Nuclear / Cytoplasmic (N/C) Ratio in buccal smears in cases having iron deficiency anemia (IDA). Methods: The study was carried out in the Department of Physiology in collaboration with Department of Medicine at S.M.S. Medical College, Jaipur, Rajasthan. This was a case control type of study. T

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36

Xia, Zonghuang, Demin Wang, and Shigang Wu. "INVESTIGATION OF VACANCY DISTRIBUTION IN C+−B, C+−N, C+−Be andC+−O ION-ATOM COLLISIONS." International Journal of PIXE 06, no. 01n02 (1996): 65–69. http://dx.doi.org/10.1142/s0129083596000089.

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The mechanism of vacancy distribution in C +− B , C +− N , C +− Be , and C +− O ion-atom collision process is studied in this paper based on molecular orbital theory. It translates intensity ratio of X-ray and Auger decay in ion-atom collision process.

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37

Fujiana, Fujiana, Dewi Nur'aeni Setyowati, and Bagus Dwi Hari Setyono. "BUDIDAYA IKAN PATIN (Pangasius hypopthalmus) BERBASIS BIOFLOK DENGAN PENAMBAHAN MOLASE PADA RATIO C : N BERBEDA." Jurnal Perikanan Unram 10, no. 2 (2020): 148–57. http://dx.doi.org/10.29303/jp.v10i2.203.

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Penelitian ini bertujuan untuk menganalisa budidaya ikan patin (Pangasius hypopthalmus) berbasis bioflok dengan penambahan molase pada ratio C : N berbeda. Ikan patin yang digunakan adalah ikan patin dengan panjang rata-rata awal yaitu 6 cm. Wadah yang digunakan adalah kontainer sebanyak 12 buah ukuran volume 40 L dan diisi air tawar sebanyak 35 L dengan padat tebar 15 ekor dalam satu wadah. Pemberian molase kedalam media budidaya ikan patin dilakukan 2 jam setelah pemberian pakan. Metode yang digunakan dalam penelitian ini menggunakan metode rancangan acak lengkap (RAL). Penelitian ini terdir

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38

Zhao, Xia, Hui Xia Feng, Feng Jiang, Na Li Chen, and Xiao Chun Wang. "Research of Carbon and Nitrogen Ratio and Sludge Stability in Aerobic Granular Sludge Bioreactor." Advanced Materials Research 518-523 (May 2012): 473–77. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.473.

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In sequencing batch reactor aerobic granular sludge was cultivated, and the influence of influent C/N ratio to aerobic granular sludge was studied. The results showed that the granulation and the settling ability of the sludge were poor in high C/N, however, low C/N was beneficial to the accumulation of microorganism in reactor and MLSS could reach to as high as 8740 mg/L. Lower C/N ratio would lead to increase of particle size and disintegrate of loose structure and overgrowth on filamentous microbe, these were disadvantage of the stability of the system. It was not obvious that influent C/N

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39

Chen 陈, J. L. 家梁, J. S. 江水 Zhang 张, C. Henkel, et al. "Interstellar Nitrogen Isotope Ratios: Measurements on Tracers of C¹⁴N and C¹⁵N." Astrophysical Journal 971, no. 2 (2024): 164. http://dx.doi.org/10.3847/1538-4357/ad5549.

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Abstract The nitrogen isotope ratio 14N/15N is a powerful tool to trace Galactic stellar nucleosynthesis and constrain Galactic chemical evolution. Previous observations have found lower 14N/15N ratios in the Galactic center and higher values in the Galactic disk. This is consistent with the inside-out formation scenario of our Milky Way. However, previous studies mostly utilized double isotope ratios also including 12C/13C, which introduces additional uncertainties. Here we present observations of C14N and its rare isotopologue, C15N, toward a sample of star-forming regions measured by the IR

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40

Yang, Huizhen, He Zhang, Huizhen Qiu, et al. "Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting." Horticulturae 7, no. 11 (2021): 482. http://dx.doi.org/10.3390/horticulturae7110482.

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Lignocellulosic materials have a complex physicochemical composition and structure that reduces their decomposition rate and hinders the formation of humic substances during composting. Therefore, a composting experiment was conducted to evaluate the effects of different C/N ratios on lignocellulose (cellulose, hemicellulose and lignin) degradation and the activities of corresponding enzymes during aerobic composting. The study had five C/N ratios, namely, T1 (C/N ratio of 15), T2 (C/N ratio of 20), T3 (C/N ratio of 25), T4 (C/N ratio of 30) and T5 (C/N ratio of 35). The results showed that tr

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Syed, Sahla, Henry Wilky, João Raimundo, Bomyi Lim, and Amanda A. Amodeo. "The nuclear to cytoplasmic ratio directly regulates zygotic transcription inDrosophilathrough multiple modalities." Proceedings of the National Academy of Sciences 118, no. 14 (2021): e2010210118. http://dx.doi.org/10.1073/pnas.2010210118.

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Early embryos must rapidly generate large numbers of cells to form an organism. Many species accomplish this through a series of rapid, reductive, and transcriptionally silent cleavage divisions. Previous work has demonstrated that the number of divisions before both cell cycle elongation and zygotic genome activation (ZGA) is regulated by the ratio of nuclear content to cytoplasm (N/C). To understand how the N/C ratio affects the timing of ZGA, we directly assayed the behavior of several previously identified N/C ratio–dependent genes using the MS2-MCP reporter system in livingDrosophilaembry

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Febriyanti, Titin Liana, Suminto Suminto, and Sutrisno Anggoro. "PENGARUH PENAMBAHAN BAKTERI PROBIOTIK DAN SUMBER CARBON DALAM SISTEM BIOFLOK TERHADAP FCR IKAN NILA LARASATI (OREOCHROMIS SP.)." Akademika : Jurnal Ilmiah Media Publikasi Ilmu Pengetahuan dan Teknologi 7, no. 1 (2018): 57. http://dx.doi.org/10.31314/akademika.v7i1.99.

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The high demand for fish consumption, especially freshwater fish, make cultivator developing aquaculture especially intensive systems, but constrained by various problems. Such as environmental pollution and increased cases of diseases. Then the need for such a solution that is like biofloc cultivation system. The purpose of this research is to know the combination of optimal biofloc system treatment for Tilapia fish (Oreochromis sp.) FCR (Feed Conversion Ratio). The experimental design used in this study was factorial design, with three repetitions. Factor 1 (ratio C: N), which consists of 3

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Zhang, Cong, Ling Qu, and Wenjie Yuan. "Effects of Si/C Ratio on the Phase Composition of Si-C-N Powders Synthesized by Carbonitriding." Materials 13, no. 2 (2020): 346. http://dx.doi.org/10.3390/ma13020346.

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Si-C-N based materials possess interesting properties such as high hardness and oxidation resistance. The compacts of silicon and cornstarch with different Si/C ratios were subjected to carbonitriding at 1350–1550 °C. Reaction products were characterized by X-ray powder diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscope (TEM). The effects of Si/C ratio on the phase composition of Si-C-N powders were investigated. The results revealed that the Si/C ratio played a crucial role on the formation of crystalline silic

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Dayananda, H. S., and B. S. Shilpa. "Vertical In-Vessel Composter for Stabilization of Market Vegetable Waste." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 486–90. https://doi.org/10.35940/ijeat.C4906.029320.

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Composting can be one of the solutions to tackle the issue of handling solid waste. In the present research work, a bench-scale vertical in-vessel aerobic composter was designed to stabilize the Devaraja market vegetable waste, Mysore using horse dung and plantain leaves as seeding material and bulking agent respectively. On average, Devaraja market generate 4.8-5.6 ton per day. Mix proportion of organic waste, bulking and seeding materials fed into composter was in the ratio of 5: 1: 0.5. Initial and variation in physico-chemical characteristics of waste were monitored during the composting p

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White, C. M., A. R. Kemanian, and J. P. Kaye. "Implications of carbon saturation model structure for simulated nitrogen mineralization dynamics." Biogeosciences Discussions 11, no. 6 (2014): 9667–95. http://dx.doi.org/10.5194/bgd-11-9667-2014.

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Abstract. Carbon (C) saturation theory suggests that soils have a~limited capacity to stabilize organic C and that this capacity may be regulated by intrinsic soil properties such as clay content and mineralogy. While C saturation theory has advanced our ability to predict soil C stabilization, we only have a weak understanding of how C saturation affects N cycling. In biogeochemical models, C and N cycling are tightly coupled, with C decomposition and respiration driving N mineralization. Thus, changing model structures from non-saturation to C saturation dynamics can change simulated N dynam

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Hidayati, Yuli Astuti, Deden Zamzam Badruzzaman, Eulis Tanti Marlina, and Ellin Harlia. "ANALISIS Ca, Mg, KTK DALAM KOMPOS DARI FESES KAMBING PERAH, JERAM, LIMBAH PAKAN HIJAUAN." ZIRAA'AH MAJALAH ILMIAH PERTANIAN 48, no. 1 (2023): 61. http://dx.doi.org/10.31602/zmip.v48i1.8677.

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The research aimed to analyze the quality of compost (Ca, Mg, and CEC content) from various C/N ratios of dairy goat feces, forage waste, and straw. Experimental research methods, the design used a completely randomized design (CRD), using treatment C/N ratio 25 (T1), C/N ratio 30 (T2), and C/N ratio 35 (T3), done six times. The analysis results were tested with variance and Duncan’s test. The research results on the C/N ratio of dairy goat feces, rice straw, and forage waste affect the content of Ca, Mg, and CEC value of compost. For example, the highest content of Ca (19744.04 ± 1570.0 ppm)

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Kameshkov, Alexey V., Alexander A. Gaile, Maria Ahmad, Pavel Y. Bashmakov, and Anastasia V. Gazzaeva. "EXTRACTION PURIFICATION OF HEAVY FRACTION OF VISBREAKING GAS OIL BY MIXTURES OF N,N-DIMETHYLFORMAMIDE WITH N-METHYLMORPHOLINONE-3 AND LIGHT FRACTION OF N,N – DIMETHYLFORMAMIDE." Bulletin of the Saint Petersburg State Institute of Technology (Technical University) 65 (2023): 16–22. http://dx.doi.org/10.36807/1998-9849-2023-65-91-16-22.

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The results of extraction purification of visbreaking gas oil by Kirishinefteorgsintez LLC, divided into a light fraction of 204-264oC and a heavy fraction of 257-343oC by vacuum distillation, are presented. By four–stage countercurrent extraction of the light fraction with N, N - dimethylformamide at a mass ratio of 1.5:1 to raw materials and a temperature of 40 °C, the sulfur content was reduced from 1.911% by weight to 0.240% by weight in the raffinate. The results of a single-stage extraction of the heavy fraction of visbreaking gas oil with the sulfur content of 2.406% by weight are prese

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Nasamsir, Nasamsir, Yuza Defitri, and Heri Suhermanto. "PROSES DEKOMPOSISI BATANG KELAPA SAWIT (Elaeis guineensis Jacq.) METODE REPLANTING SISIPAN DAN PENCINCANGAN." Jurnal Media Pertanian 2, no. 2 (2017): 55. http://dx.doi.org/10.33087/jagro.v2i2.36.

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This research was carried out in Panca Mulya Village, Sungai Bahar District, Muaro Jambi Regency, Jambi Province since August to September 2017. The material that used was weathering stems of oil palm that already previously replanting by 6 to 7 months, while the tools that used was the Global Positioning System (GPS) with Garmin GPSmap 78s as its brand, plastic bag, holding tool, camera, and stationery. This research was carried out by survey methods applying. Samples was collected from the replanting areas of both underplanting and chipping method, respectively 2 blocks with 3 locations each

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Chen, Jing, Bo Li, Ning Wang, Hong Juan Li, and Dong Jin Wan. "Influence of Carbon-Sources and C/N Ratio on the Heterotrophic Denitrification." Applied Mechanics and Materials 295-298 (February 2013): 259–63. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.259.

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The effects of external Carbon-source (both type and C/N ratio) on heterotrophic denitrification were evaluated. Glucose, methanol and ethanol were chose as the C-sources, and the optimal C/N ratio of ethanol was decided as 2 while that of glucose and methanol is 6.5 and 2.5 respectively. Compared with methanol and glucose, ethanol is more efficiency, its average denitrifying rate was 1.2483 mg/g•h.This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text.

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Okada, T., S. Yamada, Y. Takeuchi, and T. Wada. "Formation of carbon nitride films with high N/C ratio by high‐pressure radio frequency magnetron sputtering." Journal of Applied Physics 78, no. 12 (1995): 7416–18. http://dx.doi.org/10.1063/1.360397.

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