Showing 2,001 - 2,020 results of 3,087 for search '"nitrogen"', query time: 0.07s Refine Results
  1. 2001

    Heat Capacity and Thermodynamic Properties of Cesium Pentaborate Tetrahydrate by Kangrui Sun, Panpan Li, Long Li, Yafei Guo, Tianlong Deng

    Published 2020-01-01
    “…This paper reports the molar heat capacities of β-CsB5O8·4H2O, which were measured by an accurate adiabatic calorimeter from 298 to 373 K with a heating rate of 0.1 K/min under nitrogen atmosphere. Neither phase transition nor thermal anomalies were observed. …”
    Get full text
    Article
  2. 2002

    Assessment of the Water Quality of WWTPs’ Effluents through the Use of Wastewater Quality Index by Ivan Benkov, Stefan Tsakovski, Tony Venelinov

    Published 2024-09-01
    “…The WWQI was computed for physical-chemical parameters including chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), total suspended solids (TSS), electrical conductivity (EC) and pH, priority substances (Cd, Ni and Pb) and a specific contaminant (Cr) using the weighted approach in the WWQI calculation, based on equal weighting, expert judgement and PCA weighing using factor loadings. …”
    Get full text
    Article
  3. 2003

    Optimizing saffron cormlet production through substrate composition nutrient concentration and irrigation management in soilless cultivation by Elham Naseri, Neda Dalir, Ali Mokhtassi-Bidgoli, Mohammad-Taghi Ebadi, Rasoul Rahnemaie

    Published 2025-01-01
    “…The highest nutrient solution productivity was achieved with a 150 (ml/pot/week) nutrient solution containing 9800 µM nitrogen and 25 µM iron. These findings underscore the importance of effective irrigation and nutrition management in enhancing the quantity and quality of cormlet production, potentially boosting perennial saffron yield in the following years.…”
    Get full text
    Article
  4. 2004

    Determination of Five Fluoroquinolones in Aquatic Products by High Performance Liquid Chromatography with Solid Phase Extraction Using Metal-Organic Framework as Sorbent by NIU Canjie, YE Sudan, ZHU Qiancong, HU Yuxia

    Published 2025-02-01
    “…The collected eluate was blown to dryness under nitrogen, redissolved and detected by HPLC with a fluorescence detector. …”
    Get full text
    Article
  5. 2005

    Induction of somatic embryogenesis and cryopreservation of Abies pinsapo Boiss. by Laura Cabero-Moreno, Ignacio Landeras-López, María Victoria Bravo-Navas, Carolina Sánchez-Romero

    Published 2025-01-01
    “…Following fluorescein diacetate (FDA) staining, more intense and abundant green fluorescence could be observed in these samples, compared to those subjected to other preconditioning and cryoprotective treatments, thus evincing a higher proportion of viable cells after freezing in liquid nitrogen. Cold hardening did not improve cryotolerance. …”
    Get full text
    Article
  6. 2006

    Development and performance evaluation of a precision seeder for sustainable rice cultivation by Prabhat Kumar Guru, Atul Kumar Shrivastava, Suryakanta Khandai, Rabe Yahaya, Sudhanshu Singh, Virender Kumar, Priyanka Tiwari, Manoj Kumar

    Published 2025-03-01
    “…To address these challenges, a precision hill seeder was developed and evaluated under puddled soil conditions to enhance efficiency, productivity, and nitrogen use efficiency in rice cultivation. The self-propelled machine features a 4 hp air-cooled diesel engine, adjustable seed and fertilizer boxes, an inclined seed plate metering unit, and a float-and-furrow system, enabling precise seeding with consistent hill-to-hill spacing and simultaneous deep fertilizer placement. …”
    Get full text
    Article
  7. 2007

    Analysis of Nanostructures and Wettability of Marine Shale in Southern China, Based on Different Fractal Models by Yang Wang, Baoyuan Zhong, Yunsheng Zhang, Yanming Zhu, Meng Wang

    Published 2024-12-01
    “…In this paper, the sensitivity responses of the Frenkel–Halsey–Hill (FHH), Neimark (NM), and Wang–Li (WL) fractal models to marine shale with varying material components are analyzed, based on liquid nitrogen adsorption experiments and fractal theory. …”
    Get full text
    Article
  8. 2008

    Resveratrol-derived carbon dots integrated into gelatin/chitosan multifunctional films for intelligent packaging by Tianxin Fu, Yuchao Feng, Shu Zhang, Yanan Sheng, Changyuan Wang

    Published 2025-01-01
    “…Additionally, pH, total volatile basic nitrogen, and weight loss measurements confirmed the preservative effects of the film on pork. …”
    Get full text
    Article
  9. 2009

    Optimization Conditions of Extracellular Proteases Production from a Newly Isolated Streptomyces Pseudogrisiolus NRC-15 by El-Sayed E. Mostafa, Moataza M. Saad, Hassan M. Awad, Mohsen H. Selim, Helmy M. Hassan

    Published 2012-01-01
    “…The culture conditions for higher protease production by NRC-15 were optimized with respect to carbon and nitrogen sources, metal ions, pH and temperature. Maximum protease production was obtained in the medium supplemented with 1% glucose, 1% yeast extract, 6% NaCl and 100 μmol/L of Tween 20, initial pH 9.0 at 50 °C for 96 h. …”
    Get full text
    Article
  10. 2010

    Characteristics and Influencing Factors of Microbial Community in Heavy Metal Contaminated Soil under Silicon Fertilizer and Biochar Remediation by Jiachao Zhang, Yuewei He, Yingchun Fang, Keqi Zhao, Nanyi Wang, Yaoyu Zhou, Lin Luo, Yuan Yang

    Published 2021-01-01
    “…Therefore, this research determined how silicon fertilizer, biochar, and their combined using affected microbial communities related with nitrogen and phosphorus cycling. The abundance and composition of the microbial community were evaluated by quantitative PCR and phospholipid fatty acid analysis, respectively. …”
    Get full text
    Article
  11. 2011

    Effects of environmental factors on the phenotypic traits and seed element accumulation of wild Elymus nutans in Tibet by Jianting Long, Xianlei Gao, Yanjun Miao

    Published 2025-01-01
    “…Meteorological variables—including temperature, humidity, and precipitation—significantly influenced plant phenotypes and the elemental composition of seeds. Soil ammonium nitrogen, total phosphorus, and available phosphorus are vital nutrients for the growth of Elymus nutans, and their deficiency has a significant impact on plant phenotypes and overall growth. …”
    Get full text
    Article
  12. 2012

    Amelioration of Nephrotoxicity in Mice Induced by Antituberculosis Drugs Using Ensete ventricosum (Welw.) Cheesman Corm Extract by Abebe Dukessa Dubiwak, Urge Gerema, Daba Abdisa, Ebsa Tofik, Wondu Reta

    Published 2022-01-01
    “…Serum levels of creatinine, blood urea nitrogen (BUN), and uric acid of the Group-II mice were significantly (P<0.01) elevated, and serum levels of total proteins and albumin of Group-II mice were significantly (P<0.01) decreased as compared to Group-I. …”
    Get full text
    Article
  13. 2013

    (Pyridin-2-ylmethyl)porphyrins: synthesis, characterization and C–N oxidative fusion attempts by Berthelot, Mathieu, Echaubard, Julie, Bousfiha, Asmae, Devillers, Charles H.

    Published 2024-06-01
    “…Attempts to generate the C–N-fused compound by oxidation (new bond between the nitrogen of the pyridinyl substituent and the β-pyrrolic position of the porphyrin) are also described.…”
    Get full text
    Article
  14. 2014

    Response of tef (Eragrostis tef (Zucc.) Trotter) yield to nutrient management under rainy and irrigation production systems in northwestern Amhara, Ethiopia. by Zerfu Bazie, Tadele Amare, Erkihun Alemu, Bitewulign Kerebh, Abere Tenagn, Abrham Awoke, Zmie Ambaw, Beamlaku Alemayehu, Anteneh Abewa, Ataklte Abebe, Tesfaye Feyisa, Birhanu Agumas

    Published 2025-01-01
    “…The lowest mean grain yields of 342 kg ha-1 (nitisols) and 491 kg ha-1 (vertosols) were obtained from the no fertilizer treatment. Nitrogen omission decreased yields by 49 and 65% in nitisols and vertosols under the rainy season, respectively, whereas a 19% yield decrease was also observed in the irrigation season. …”
    Get full text
    Article
  15. 2015

    Phenol Red Adsorption from Aqueous Solution on the Modified Bentonite by Nguyen Le My Linh, Tran Duong, Hoang Van Duc, Nguyen Thi Anh Thu, Pham Khac Lieu, Nguyen Van Hung, Le Thi Hoa, Dinh Quang Khieu

    Published 2020-01-01
    “…X-ray diffraction (XRD), thermal analysis (TG-DTA), infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption/desorption isotherms were utilized to characterize the resultant modified bentonites. …”
    Get full text
    Article
  16. 2016

    Innovative approaches to growing grain crops in the Southern Steppe of Ukraine by Antonina Drobitko, Tetiana Kachanova, Nataliia Markova, Nataliia Nikonchuk

    Published 2024-11-01
    “…Soil analysis in the experimental groups showed higher levels of nitrogen, phosphorus and potassium, which indicates the effectiveness of biofertilisers. …”
    Get full text
    Article
  17. 2017

    Analysis and Evaluation of Seawater Quality in the Northwest of Hainan by HUANG Xia, ZHENG Ruixi

    Published 2024-09-01
    “…The results revealed that the seawater in the northwest of Hainan exhibited low levels of inorganic nitrogen content, heavy metal content, and pH value, with single factor standard index values less than 1, meeting the first class water quality standard. …”
    Get full text
    Article
  18. 2018

    Effect of Coenzyme-Q10 on Doxorubicin-Induced Nephrotoxicity in Rats by Azza A. K. El-Sheikh, Mohamed A. Morsy, Marwa M. Mahmoud, Rehab A. Rifaai, Aly M. Abdelrahman

    Published 2012-01-01
    “…., levels of blood urea nitrogen and serum creatinine, concentrations of renal reduced glutathione (GSH) and malondialdehyde, catalase activity and caspase 3 expression, and renal histopathology). …”
    Get full text
    Article
  19. 2019

    Are Wolf-Rayet Stars Able to Pollute the Interstellar Medium of Galaxies? Results from Integral Field Spectroscopy by Enrique Pérez-Montero, Carolina Kehrig, Jarle Brinchmann, José M. Vílchez, Daniel Kunth, Florence Durret

    Published 2013-01-01
    “…We exclude possible hydrodynamical causes, such as the metal-poor gas inflow, for this local pollution by means of the analysis of the mass-metallicity relation (MZR) and mass-nitrogen-to-oxygen relation (MNOR) for the WR galaxies catalogued in the SDSS.…”
    Get full text
    Article
  20. 2020

    Characterizing Opine Physiological and Genetic Diversity in Moroccan strains of Allorhizobium vitis, the Causal Agent of Grapevine Crown Gall by Khaoula Habbadi, Hajar Hamzaoui, Imane Hourmatallah, Hiba Yahyaoui, Faiçal Aoujil, Majida Hafidi, Aziz Aziz, Salma El Iraqui El Houssaini

    Published 2024-12-01
    “…This study investigates the physiological and genetic diversity of Allorhizobium vitis strains in Morocco, focusing on their ability to produce and utilize opines as sources of carbon, nitrogen, and energy. Using ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF) and specific PCR assays, we identified and characterized opines in tumors induced in tomato plants by Moroccan strains of A. vitis. …”
    Get full text
    Article