Showing 261 - 280 results of 2,155 for search '"endotherms"', query time: 0.11s Refine Results
  1. 261

    (Li, Na, K)OH hydration bonding thermodynamics : solution self-heating by Sun, Chang Qing, Yao, Chuang, Chen, Jiasheng, Liu, Xinjuan, Zhang, Xi, Huang, Yongli

    Published 2019
    “…The resultant energy of solvent H–O bond exothermic elongation by O:⇔:O repulsion, featured at <3100 cm −1 , and the solute H–O bond endothermic contraction by bond-order-deficiency, at 3610 cm −1 , heats up the (Li, Na, K)OH solutions. …”
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    Journal Article
  2. 262

    Removal Methyl Orange from Aqueous Solutions Using Dragon Fruit (Hylocereusundatus) Foliage. by Zainal Abidin, Zurina, Ahmadun, Fakhru'l-Razi, Ismail, Mohd Halim Shah, Haddadian, Zahra, Shavandi, Mohammad Amin

    Published 2013
    “…Different thermodynamic values were calculated and the adsorption process was found to be favourable and endothermic. The adsorbent was characterised using Fourier transform infrared spectroscopy and scanning electron microscopy. …”
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    Article
  3. 263

    Quaternized wood as sorbent for reactive dyes by Low, Kun She, Lee, Chnoong Kheng, Tan, Bee Foong

    Published 2000
    “…The enthalpy of sorption of HRB on Simpoh (Dillenia suffruticosa) was found to be endothermic. Maximum sorption capacity calculated from the Langmuir isotherm was 250.0 mg/g. …”
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    Article
  4. 264

    Adsorption/desorption of cationic dye on surfactant modified mesoporous carbon coated monolith: equilibrium, kinetic and thermodynamic studies by Malekbalaa, Mohamad Rasool, Ali Khan, Moonis, Hosseinia, Soraya, Abdullah, Luqman Chuah, Choong, Thomas Shean Yaw

    Published 2015
    “…The adsorption was found to be spontaneous and endothermic. Desorption studies indicate that 0.1 N HCl exhibits higher elution efficiency (82.1%) with appreciable quantitative MB recovery.…”
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    Article
  5. 265

    Effects of Microhabitat Temperature Variations on the Gut Microbiotas of Free-Living Hibernating Animals by Sen Liu, Yanhong Xiao, Xufan Wang, Dongge Guo, Yanmei Wang, Ying Wang

    Published 2023-08-01
    “…ABSTRACT Variations in ambient temperature (Ta) may significantly influence the gut microbiotas of ectothermic and endothermic animals, affecting fitness. It remains unclear, however, whether temperature fluctuations affect the gut microbial communities of hibernating animals during torpor. …”
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    Article
  6. 266

    A comprehensive investigation on 3D printing of polyamide 11 and thermoplastic polyurethane via multi jet fusion by Tey, Wei Shian, Cai, Chao, Zhou, Kun

    Published 2021
    “…According to the DSC scans, the PA11 specimen exhibited two endothermic peaks, while the TPU specimen exhibited a broad endothermic peak (116-150 °C). …”
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    Journal Article
  7. 267

    Advanced catalysts and effect of operating parameters in ethanol dry reforming for hydrogen generation. A review by Nor Shafiqah, Mohd-Nasir, Tan, Ji Siang, Kumar, Ponnusamy Senthil, Zainal, Ahmad, Jalil, A. A., Bahari, Mahadi, Van Le, Quyet, Xiao, Leilei, Mofijur, M., Xia, Changlei, Ahmed, Shams Forruque, Vo, Dai-Viet N.

    Published 2022
    “…H2 yield of 90% and above is achieved at 1073 K or above due to the endothermic nature of ethanol dry reforming. Improving catalytic performance and inhibiting coke formation may be achieved by using bimetallic catalysts and other types of metal oxides.…”
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    Article
  8. 268

    Study on the thermal decomposition reaction process and kinetics of SF6 and tungsten by Xu Mengyuan, Lv Houhua, Liu Yunfang, Yang Ren, Han Yanhua, Xu Liuyu, Li Xu, Li Jiuhong, Zhang Xiao, Jian Yajun, Zhang Weiqiang

    Published 2023-01-01
    “…Based on above experiments, a two-stage decomposition process of SF6 with tungsten was proposed: the first stage is the surface vulcanization reaction W+SF6→S2, mainly taken place at 600 °C, with the activation energy valued at 152.8 kJ·mol-1, according to Avrami-Erofeev equation; the second stage is the endothermic fluorination reaction WS2+SF6 →WF6, mainly taken place at 750 °C,, with the activation energy valued at 126.0 kJ·mol-1 according to the Avrami-Erofeev equation.…”
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    Article
  9. 269

    STUDENT DIFFICULTY ANALYSIS IN COMPLETING CHEMISTRY ODD SEMESTER EXAM by Mujakir Mujakir, Haris Munandar, Nur Fitri Hidayati

    Published 2020-12-01
    “…The results obtained indicate that students have difficulty in chemical calculations, exothermic and endothermic reactions, and the concept of chemistry equilibrium; the factors that affect students' difficulties in solving odd semester final exam questions on chemistry are the students', physical condition, students' motivation, and interest and students' low mathematical abilities.…”
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    Article
  10. 270

    The polymer–polymorphoid nature of glass aging process by Victor S. Minaev, Nikolai M. Parfenov, Sergey P. Timoshenkov, Victor V. Kalugin, Ludmila P. Batyunya, Damir Zh. Mukimov

    Published 2015-12-01
    “…The study revealed that the process and degree of glass aging influences the properties of glasses, including a change in enthalpy, manifested in the exothermic and endothermic effects observed in thermograms of differential scanning calorimetry of heated and cooled glasses. …”
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    Article
  11. 271

    Investigation of thermal properties and composition on basalts of the Aydarkul deposit by methods DTA/DTG and X-ray diffraction by Nazarov Sayfulla, Razzokov Khasan, Shirinov Gayrat, Niyozov Erkin, Rashidova Rano, Rasulov Mirzo, Ganiev Bakhtiyor

    Published 2023-01-01
    “…The article studies the endothermic effects of the thermolysis process, which appear at a temperature of 80 ÷240 0C. …”
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    Article
  12. 272

    Adsorption of Congo red with hydrothermal treated shiitake mushroom by Kai Yang, Yanhui Li, Heng Zheng, Xinyu Luan, Hong Li, Yuqi Wang, Qiuju Du, Kunyan Sui, Hongliang Li, Yanzhi Xia

    Published 2019-01-01
    “…Thermodynamic analysis indicated that the adsorption reaction was a spontaneous endothermic reaction.…”
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    Article
  13. 273

    Cr(VI) Sorption from Aqueous Solution: A Review by Angelo Fenti, Simeone Chianese, Pasquale Iovino, Dino Musmarra, Stefano Salvestrini

    Published 2020-09-01
    “…In most cases, Cr(VI) sorption is an endothermic process whose kinetics is satisfactorily described by the pseudo second-order model. …”
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    Article
  14. 274
  15. 275

    Body Temperature Measurements for Metabolic Phenotyping in Mice by Carola W. Meyer, Youichirou Ootsuka, Andrej A. Romanovsky

    Published 2017-07-01
    “…Endothermic organisms rely on tightly balanced energy budgets to maintain a regulated body temperature and body mass. …”
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    Article
  16. 276

    Multispectroscopic and molecular docking studies on the interaction of diltiazem hydrochloride with bovine serum albumin and its application to the quantitative determination of di... by Nafisur Rahman, Nabila Khalil, Sumaiya Khan, Mikhlid H. Almutairi, Bader O. Almutairi, Mahboob Alam

    Published 2022-10-01
    “…The thermodynamic parameters such as ΔG, ΔH and ΔS were computed which illustrated the spontaneous and endothermic nature of binding of DTZ with BSA. Molecular docking evaluation indicated that DTZ fits into the binding pocket of subdomain I-B (site III). …”
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    Article
  17. 277

    Theoretical Analysis of Mass Transfer Behavior in Fixed-Bed Electrochemical Reactors: Akbari-Ganji’s Method by Ponraj Jeyabarathi, Lakshmanan Rajendran, Michael E. G. Lyons, Marwan Abukhaled

    Published 2022-10-01
    “…These particles have internal mass concentration and temperature gradients in endothermic or exothermic reactions. The model is based on a nonlinear reaction–diffusion equation containing a nonlinear term with an exponential relationship between intrinsic reaction rate and temperature. …”
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    Article
  18. 278

    EGG SHELL AS NATURAL SORBENT TO REMOVE CADMIUM IONS FROM SIMULATED WASTEWATER by Lahieb Faisal Muhaisen, Farah Faisal Muhaisen, Zainab Munaf Abdulkareem

    Published 2019-11-01
    “…Effect of temperature change has been calculated, and parameters of thermodynamic indicated that the sorption of cadmium is favored at high temperatures and endothermic. FTIR was recorded before and after adsorption to show the number and position of the functional groups available for cadmium binding onto the studied adsorbent. …”
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    Article
  19. 279

    Structure and Mössbauer Analysis of Melt-Spun Fe-Pd Ribbons Containing Ni and Co by Hanen Rekik, Mahmoud Chemingui, Tarek Bachaga, Amal Cherif, Pere Bruna, Joan Joseph Sunol, Mohamed Khitouni

    Published 2015-06-01
    “…The annealed ribbon at 600 °C shows an L10 ordered fct structure. An endothermic reaction at T = 358 °C followed by an exothermic one at 390 °C were observed on heating. …”
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    Article
  20. 280

    STUDY OF ADSORPTION METHYLENE BLUE DYE FROM AQUEOUS SOLUTIONS BY ATTAPULGITE CLAY BY THE BATCH AND THE COLUMN METHOD by MOUHANND H. NAJI

    Published 2012-06-01
    “…The effect of temperature and thermodynamic functions wear also studied and found that the adsorption ratio was increased with increased the temperature and the reaction was endothermic. After fixing the best conditions for the adsorption, the column method was used and the adsorption ratio was equal to (88.16%)…”
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    Article