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Search Results (19)
  • Open Access



    Yiding Cao

    Frontiers in Heat and Mass Transfer, Vol.19, No.1, pp. 1-16, 2022, DOI:10.5098/hmt.19.2

    Abstract This paper introduces a novel air-water thermal power plant working at low temperatures and employing hot water as a heat-supply fluid to produce utility-scale power with high second-law efficiency. The air-water power plant uses both air and water as working fluids and employs a direct-contact mass and heat transfer packing to facilitate latent heat (in terms of vapor) and sensible heat transfer from the hot water to moist air for expansion in a gas turbine to produce power. A cycle analysis indicates that with a heat source temperature of around 100o C, the power plant could achieve a power capacity… More >

  • Open Access


    Identification of a Novel OsCYP2 Allele that Was Involved in Rice Response to Low Temperature Stress

    Hongxiu Gao1, Lin Zhu2, Tianqi Liu1, Xueyu Leng1, Zhenxing Zhu3, Wei Xie1, Haitao Lv1, Zhengxun Jin1, Ping Wu4,#, Zhongchen Zhang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.6, pp. 1743-1763, 2023, DOI:10.32604/phyton.2023.026516

    Abstract Cyclophilin (CYP) plays an important role in plant response to stress, and OsCYP2, one gene of cyclophlilin family, is involved in auxin signal transduction and stress signaling in rice. However, the mechanism that OsCYP2 is involved in rice response to low temperature is still unclear. We identified a new OsCYP2 allelic mutant, lrl3, with fewer lateral roots, and the differences in shoot height, primary root length and adventitious root length increased with the growth process compared to the wild-type plant. Auxin signaling pathway was also affected and became insensitive to gravity. The transgenic rice plants with over-expression of OsCYP2 were… More >

  • Open Access


    De Novo Transcriptome Analysis in Hevea brasiliensis to Unveil Genes Involved in Low Temperature Stress Response

    Bingsong Yang1,2,#, Xiaomeng Shi2,#, Tingting Guo1,2, Meixia Liang1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.2, pp. 559-575, 2023, DOI:10.32604/phyton.2022.024266

    Abstract Low temperature is one of the adversities threatening the growth and development and reduces the yield of rubber trees. However, molecular mechanisms toward rubber trees in response to low temperature are largely unclear. In this study, 7,159 and 7,600 differentially expressed genes (DEGs) were identified in ‘Reyan 73397’ rubber trees. Through GO analysis, the catalytic activity was the representative of the GO term in the only DEGs at the two studied temperatures (room temperature and 4°C, respectively), while KEGG analysis showed that carbon metabolism was the most important grouping under the comparison of these two temperatures. In addition, expression of… More >

  • Open Access


    Effect of Introducing Conductive Organic Carrier on Properties of Low-Temperature Conductive Silver Paste

    Peng Chen*, Wentao Shi, Jian Wan, Lu Huang

    Journal of Renewable Materials, Vol.11, No.2, pp. 1017-1029, 2023, DOI:10.32604/jrm.2023.023699

    Abstract The poly(epoxy-N-methylaniline) conductive organic carrier was used as the bonding phase of the low-temperature conductive silver paste. Then, this was mixed with different proportions of silver powder to prepare the lowtemperature conductive silver paste. Afterwards, the effect of the conductive organic carrier on the properties of the low-temperature conductive silver paste was determined by IR, DMA and SEM. The results revealed that the prepared conductive paste has good conductivity, film-forming performance, printing performance, low-temperature curing performance, and anti-aging performance. When the mass percentage of the bonding phase/conductive phase was 40/60, the lowest volume resistivity of the conductive silver paste was… More > Graphic Abstract

    Effect of Introducing Conductive Organic Carrier on Properties of Low-Temperature Conductive Silver Paste

  • Open Access


    Preparation and Performance of Ternesite-Ye’Elimite Clinker Produced from Steel Slag at Lower Temperature

    Zhengyang Li1, Wei Guo1,*, Yueyang Hu1, Xiao Wang1, Binbin Qian2, Cuifeng Jiang1

    Journal of Renewable Materials, Vol.10, No.11, pp. 2921-2935, 2022, DOI:10.32604/jrm.2022.019258

    Abstract Ternesite (4CaO·2SiO2·CaSO4)-Ye’elimite (3CaO·3Al2O3·CaSO4) (simplified as TY) cement clinker was successfully prepared from steel slag at 1200°C in this study. XRD, TG/DSC and SEM were used to analyze the mineral composition and hydration products of the TY clinker. The sintering process and hydration mechanism of the TY clinker were investigated. Results show that a large amount of ternesite and ye’elimite have been formed at 1200°C, while ternesite has not been decomposed. Clinker minerals include ternesite, ye’elimite, gypsum and a small amount of iron phase. Iron phase from steel slag can promote the formation of liquid phase with the presence of gypsum… More >

  • Open Access


    Effects of Porous Graphene on LiOH Based Composite Materials for Low Temperature Thermochemical Heat Storage

    Lisheng Deng1,2, Hongyu Huang2,*, Zhaohong He2, Shijie Li2, Zhen Huang2, Mitsuhiro Kubota3, You Zhou4,*, Dezhen Chen1

    Journal of Renewable Materials, Vol.10, No.11, pp. 2895-2906, 2022, DOI:10.32604/jrm.2022.019071

    Abstract Thermochemical heat storage material inorganic hydrate LiOH is selected as a promising candidate material for storing low-temperature heat energy because of its high energy density (1440 kJ/kg) and mild reaction process. However, the low hydration rate of LiOH limits the performance of low temperature thermochemical heat storage system as well as the thermal conductivity. In this study, porous-graphene/LiOH composite thermochemical heat storage materials with strong water sorption property and higher thermal conductivity were synthesized by hydrothermal process. The experimental results show that the hydration rate of the composites was greatly improved. The heat storage density of the composite materials was… More >

  • Open Access


    Microalgae Improve the Photosynthetic Performance of Rice Seedlings (Oryza sativa L.) under Physiological Conditions and Cadmium Stress

    Ekaterina Yotsova1, Martin Stefanov1, Georgi Rashkov1, Margarita Kouzmanova2, Anelia Dobrikova1, Emilia Apostolova1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1365-1380, 2022, DOI:10.32604/phyton.2022.020566

    Abstract The aim of this study was to assess the impact of the microalgae Chlorella vulgaris on the rice seedlings at physiological conditions and under cadmium (Cd) stress. We examined the effects of C. vulgaris in the nutrient solution on rice seedlings grown hydroponically in the presence and the absence of 150 μM CdCl2, using the low (77 K) temperature and pulse amplitude modulated (PAM) chlorophyll fluorescence, P700 photooxidation measurements, photochemical activities of both photosystems, kinetic parameters of oxygen evolution, oxidative stress markers (MDA, H2O2 and proline), pigment content, growth parameters and Cd accumulation. Data revealed that the application C. vulgaris not… More >

  • Open Access


    A Mathematical Model and Simulations of Low Temperature Nitriding

    Bogusław Bożek1, Lucjan Sapa1,*, Katarzyna Tkacz-Śmiech2, Marek Danielewski2, Janusz Rybak2

    CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.2, pp. 777-803, 2022, DOI:10.32604/cmes.2022.017729

    Abstract Low-temperature nitriding of steel or iron can produce an expanded austenite phase, which is a solid solution of a large amount of nitrogen dissolved interstitially in fcc lattice. It is characteristic that the nitogen depth profiles in expanded austenite exhibit plateau-type shapes. Such behavior cannot be considered with a standard analytic solution for diffusion in a semi-infinite solid and a new approach is necessary. We formulate a model of interdiffusion in viscoelastic solid (Maxwell model) during the nitriding process. It combines the mass conservation and Vegard’s rule with the Darken bi-velocity method. The model is formulated in any dimension, i.e.,… More >

  • Open Access


    Estimation of Growth and Photosynthetic Performance of Two C4 Species (Pennisetum spicatum (L.) Körn. and Zea mays L.) under a Low Temperature Treatment

    Abdulkhaliq Alshoaibi*

    Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 45-55, 2022, DOI:10.32604/phyton.2022.016434

    Abstract Pearl millet (Pennisetum spicatum (L.) Körn.) and maize (Zea mays L.) are C4 grass species grown for feeding humans and animals in Almadinah Almunawwarah, which is in the western part of Saudi Arabia. During the winter, the mean temperature, which drops to 14°C, represents a major problem for the growth of these species in this region. Therefore, the objectives of this research were to investigate the growth response and the photosynthetic performance of P. spicatum and Z. mays under a low temperature stress. The treatments involved daytime and nighttime temperatures of 14/12°C (low temperature) and 24/22°C (optimum temperature). The results… More >

  • Open Access


    Experimental Investigation of Organic Rankine Cycle (ORC) for Low Temperature Geothermal Fluid: Effect of Pump Rotation and R-134 Working Fluid in Scroll-Expander

    Nugroho Agung Pambudi1,*, Santiko Wibowo1, Ranto1, Lip Huat Saw2

    Energy Engineering, Vol.118, No.5, pp. 1565-1576, 2021, DOI:10.32604/EE.2021.016642

    Abstract Organic Rankine Cycle (ORC) is one of the solutions to utilize a low temperature geothermal fluid for power generation. The ORC system can be placed at the exit of the separator to extract energy from brine. Furthermore, one of the main components of the system and very important is the pump. Therefore, in this research, the pump rotation is examined to investigate the effect on power output and energy efficiency for low temperature geothermal fluid. The rotation is determined by using an inverter with the following frequencies: 7.5, 10, 12.5, 15 and 17.5 Hz, respectively. R-134 working fluid is employed… More >

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