Log in

Relevant bibliographies by topics / Clinker cooler / Journal articles

To see the other types of publications on this topic, follow the link: Clinker cooler.

Journal articles on the topic 'Clinker cooler'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Clinker cooler.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Oyepata, J. S., M. A. Akintunde, O. A. Dahunsi, S. S. Yaru, and E. T. Idowu. "Modelling of clinker cooler and evaluation of its performance in clinker cooling process for cement plants." Nigerian Journal of Technology 39, no. 4 (2021): 1093–99. http://dx.doi.org/10.4314/njt.v39i4.16.

Full text

Abstract:

Cement manufacturing requires cooling down of hot clinker at temperature of about 1350o C to temperature lower than 100 o C in a cooling system known as clinker cooler. Many plants are unable to cool the clinker below 250o C. This challenge led to scaling down of actual clinker cooler to a test rig size in the ratio 25:1 suitable for simulation. Computational Fluid Dynamics (CFD) tools (Solid-Works and ANSYS) were used to achieve the simulation. The clinker outlet temperatures obtained from simulations were validated with theoretical evaluation. Results showed that with clinker and cooling air

APA, Harvard, Vancouver, ISO, and other styles

2

Jabbar, Nasr A., Ali Amer Alshammary, Ihsan Y. Hussain, and Luay S. Alansari. "Numerical Investigation of New Cooling Method for Clinker Flow in Opposite Direction with Airflow at Different Height Ratios." Key Engineering Materials 895 (August 3, 2021): 157–76. http://dx.doi.org/10.4028/www.scientific.net/kem.895.157.

Full text

Abstract:

Several parameters affect the properties of Portland cement and one of these parameters is the cooling rate of the clinker. If the effectiveness of the cooling method of the clinker increases, a good enhancement in the properties of Portland cement will be found. Depending on the new cooling method suggestion by Nasr et. al. [20], the counter pattern of air clinker flow was studied using (FLUENT 6.3.26). The dimensions of the cooling room in grate cooler, the constant mass flow rate of both clinker and air, different height ratios, and different clinker porosity were considered in this numeric

APA, Harvard, Vancouver, ISO, and other styles

3

AhmedOleiwi, Majid, and Zaid Abed Aljasem. "Neural Network Control for PPDCV Clinker Cooler System." International Journal of Computer Applications 85, no. 2 (2014): 29–34. http://dx.doi.org/10.5120/14815-3038.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

WANG, Meiqi. "Temperature Soft-sensing of Cement Clinker in Grate Cooler." Journal of Mechanical Engineering 52, no. 6 (2016): 159. http://dx.doi.org/10.3901/jme.2016.06.159.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Bump, J. A. "New cooler installed at Lafarge Alpena plant: fuller controlled flow grate (CFG) clinker cooler." IEEE Transactions on Industry Applications 32, no. 6 (1996): 1409–12. http://dx.doi.org/10.1109/28.556645.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Huebner, Rudolf, Lúcio Barreto Pereira, and Rafael Nacife Carneiro. "Cascading Analysis Using Discrete Element Method in Rotary Drum Coolers." Applied Mechanics and Materials 798 (October 2015): 97–101. http://dx.doi.org/10.4028/www.scientific.net/amm.798.97.

Full text

Abstract:

Discrete Element Methods have been used extensively in processes involving flow behavior where modeling the individual particles is of particular interest. A rotary cooler is an application of one such process. Although the current analysis can be used to any type of rotary cooler or rotary dryer, this work is focused on the analysis of particles falling from lifters in a planetary rotary cooler used in the production of clinker and installed at the outlet of a rotary kiln. Clinker is the main raw material used to manufacture cement. The objective of this work is to model the particle distribu

APA, Harvard, Vancouver, ISO, and other styles

7

Acuña, Oscar, Carla Martin-Villalba, and Alfonso Urquia. "Virtual-Lab of a Cement Clinker Cooler for Operator Training." IFAC Proceedings Volumes 45, no. 2 (2012): 331–36. http://dx.doi.org/10.3182/20120215-3-at-3016.00058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Gagnon, D. "Upgrading a clinker cooler. IKN Klinker Inlet Distribution System ("KIDS")." IEEE Transactions on Industry Applications 33, no. 1 (1997): 126–34. http://dx.doi.org/10.1109/28.567091.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Taweel, T. J. B., E. Sokolova, V. Sergeev, and D. B. Solovev. "Energy and Exergy Analysis of Clinker Cooler in the Cement Industry." IOP Conference Series: Materials Science and Engineering 463 (December 31, 2018): 032101. http://dx.doi.org/10.1088/1757-899x/463/3/032101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Tie, Zhan Xu, Hai Xia Li, and Xiao Dian Guo. "Numerical Investigation of the Effect of Waste Heat Extracting Location on Temperature Distribution." Advanced Materials Research 354-355 (October 2011): 361–64. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.361.

Full text

Abstract:

The numerical model was established to simulate the gas flow and heat transfer in cement grate cooler. It is useful to increase the gas temperature when the extracting exit position is close to the cement kiln end. The appropriate position of the extracting high temperature gas is about 5 m far away from the cement clinker inlet.

APA, Harvard, Vancouver, ISO, and other styles

11

Acuña, Oscar, Carla Martin-Villalba, and Alfonso Urquia. "Virtual lab in Modelica of a cement clinker cooler for operator training." Mathematical and Computer Modelling of Dynamical Systems 20, no. 2 (2013): 170–93. http://dx.doi.org/10.1080/13873954.2013.819019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Xiao, Jun, Bing Liu, and Yun Xiao He. "Study on Process Control Method of Kiln Outlet in Cement Production." Advanced Materials Research 139-141 (October 2010): 1898–901. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.1898.

Full text

Abstract:

This paper describes a configuration method of kiln outlet production line in which a new integrated control system PCS7 of Siemens is used. From the raw feeding to the clinker storage, and from measurement unit at the bottom to management at the upper system, the configuration realizes a transversal and vertical integration and automatic control of the productive process. The operational principle of the kiln, burning process of raw power, pulverized coal and hot airflow in the kiln and cooling procedures and transportation of clinker in grate cooler are all analysed at length. The control re

APA, Harvard, Vancouver, ISO, and other styles

13

Darmanto, Prihadi Setyo, I. Made Astina, Alfian Kusuma Wardhana, Alfi Amalia, and Arief Syahlan. "NEW METHOD EVALUATION OF DETAIL MATERIAL AND HEAT FLOWS FOR SINGLE STRING CEMENT CLINKER PLANT." Acta Polytechnica 61, no. 1 (2021): 199–218. http://dx.doi.org/10.14311/ap.2021.61.0199.

Full text

Abstract:

Material flow in each main equipment of a cement clinker plant, which is very useful for controlling the process, is impossible to be measured during operation due to very high temperatures. This paper intends to overcome the difficulties associated with the measurement of these material flow values. This study presents a new method of calculating material flow (gas and solid) in each main equipment of a single string conventional suspension preheater type of a cement clinker plant. Using the proposed method, mass flow rate at a clinker cooler, kiln, suspension preheater (SP) and even each cyc

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Meiqi, Bin Liu, Yan Wen, and Haoran Liu. "SEEPAGE HEAT TRANSFER BETWEEN CLINKER AND COOLING AIR WITH VARIABLE PROPERTIES OF THE GRATE COOLER." Heat Transfer Research 48, no. 3 (2017): 263–81. http://dx.doi.org/10.1615/heattransres.2016011341.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Shao, Wei, Zheng Cui, and Xiao-teng Ma. "Experimental research on cement grate cooler system and numerical simulation of its clinker cooling process." Applied Thermal Engineering 181 (November 2020): 115904. http://dx.doi.org/10.1016/j.applthermaleng.2020.115904.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Shao, Wei, Zheng Cui, and Yu Liu. "Multi-objective optimization on clinker layer thickness of a grate cooler based on entropy generation." Energy Procedia 158 (February 2019): 5811–16. http://dx.doi.org/10.1016/j.egypro.2019.01.547.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Mujumdar, Kaustubh S., K. V. Ganesh, Sarita B. Kulkarni, and Vivek V. Ranade. "Rotary Cement Kiln Simulator (RoCKS): Integrated modeling of pre-heater, calciner, kiln and clinker cooler." Chemical Engineering Science 62, no. 9 (2007): 2590–607. http://dx.doi.org/10.1016/j.ces.2007.01.063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Meiqi, Bin Liu, Yan Wen, and Haoran Liu. "Numerical Simulation and Analytical Characterization of Heat Transfer between Cement Clinker and Air in Grate Cooler." Journal of Chemical Engineering of Japan 49, no. 1 (2016): 10–15. http://dx.doi.org/10.1252/jcej.14we414.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

YAMASHITA, Makio, Hisanobu TANAKA, and Katsuhiko ICHIHARA. "CHANGE IN COOLING RATE BY INTRODUCING HIGH-EFFICIENCY CLINKER COOLER AND ITS INFLUENCE ON THE CEMENT PROPERTIES." Cement Science and Concrete Technology 64, no. 1 (2010): 23–28. http://dx.doi.org/10.14250/cement.64.23.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Wen, Yan, Yan-Xu Ju, and Lin Yuan. "Research on heat transfer law of cement clinker accumulation body in grate cooler based on lattice Boltzmann method." Heat Transfer-Asian Research 48, no. 1 (2018): 270–85. http://dx.doi.org/10.1002/htj.21383.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Borsuk, Grzegorz, Bolesław Dobrowolski, Grzegorz Nowosielski, Jacek Wydrych, and Jerzy Duda. "Numerical simulation of thermal-hydraulic processes in the riser chamber of installation for clinker production." Archives of Thermodynamics 37, no. 1 (2016): 127–42. http://dx.doi.org/10.1515/aoter-2016-0009.

Full text

Abstract:

AbstractClinker burning process has a decisive influence on energy consumption and the cost of cement production. A new problem is to use the process of decarbonization of alternative fuels from waste. These issues are particularly important in the introduction of a two-stage combustion of fuel in a rotary kiln without the typical reactor-decarbonizator. This work presents results of numerical studies on thermal-hydraulic phenomena in the riser chamber, which will be designed to burn fuel in the system where combustion air is supplied separately from the clinker cooler. The mathematical model

APA, Harvard, Vancouver, ISO, and other styles

22

Atmaca, Adem, and Recep Yumrutaş. "The effects of grate clinker cooler on specific energy consumption and emissions of a rotary kiln in cement industry." International Journal of Exergy 18, no. 3 (2015): 367. http://dx.doi.org/10.1504/ijex.2015.072897.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Dolenec, Sabina, Katarina Šter, Maruša Borštnar, Klara Nagode, Andrej Ipavec, and Lea Žibret. "Effect of the Cooling Regime on the Mineralogy and Reactivity of Belite-Sulfoaluminate Clinkers." Minerals 10, no. 10 (2020): 910. http://dx.doi.org/10.3390/min10100910.

Full text

Abstract:

This study investigated the influence of different cooling regimes on the microstructure and consequent reactivity of belite-sulfoaluminate clinkers. The cement clinkers were synthesized by incorporating secondary raw materials, such as titanogypsum and bottom ash, to the natural raw materials. Clinker phases were determined by Rietveld quantitative phase analysis, while the distribution morphology and the incorporation of substitute ions in the phases were characterized by scanning electron microscopy using energy-dispersive X-ray spectroscopy (SEM/EDS). Clinker reactivity was studied using i

APA, Harvard, Vancouver, ISO, and other styles

24

Navaneetha Krishnan, R., and K. Ramamoorthy. "Design and Implementation of Reduced Fuel Consumption in Cement Kiln with Efficient Cooling Technology Using PLC and HMI." International Journal of Engineering & Technology 7, no. 3.6 (2018): 87. http://dx.doi.org/10.14419/ijet.v7i3.6.14945.

Full text

Abstract:

Cement is the most important essential component to the building infrastructure development. Taking into consideration that the bond market will record an expanding rate of 15 - 20%, identified with the private structures improvement and to the start of extensive foundation extends the concrete creation is of extraordinary premium, both from the perspective of item's quality increment and crude material utilization. The main objective of this paper is to show how the process model can be inserted into advanced controllers to allow the successful control and optimization of the process, thereby

APA, Harvard, Vancouver, ISO, and other styles

25

Shao, Wei, Zheng Cui, and Lin Cheng. "Multi-objective optimization of cooling air distributions of grate cooler with different clinker particles diameters and air chambers by genetic algorithm." Applied Thermal Engineering 111 (January 2017): 77–86. http://dx.doi.org/10.1016/j.applthermaleng.2016.09.082.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

John, John P. "Parametric Studies of Cement Production Processes." Journal of Energy 2020 (February 15, 2020): 1–17. http://dx.doi.org/10.1155/2020/4289043.

Full text

Abstract:

The cement industry is one of the most intensive energy consumers in the industrial sectors. The energy consumption represents 40% to 60% of production cost. Additionally, the cement industry contributes around 5% to 8% of all man-made CO2 emissions. Physiochemical and thermochemical reactions involved in cement kilns are still not well understood because of their complexity. The reactions have a decisive influence on energy consumption, environmental degradation, and the cost of cement production. There are technical difficulties in achieving direct measurements of critical process variables

APA, Harvard, Vancouver, ISO, and other styles

27

Liu, Yan Jun, and Yong Chao Zheng. "Mineral Waste Coupled with Boron Oxide for Producing Active Belite Cement Clinker." Applied Mechanics and Materials 405-408 (September 2013): 2564–75. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.2564.

Full text

Abstract:

This paper presents a laboratory study on active belite cement clinker using boron oxide as dopant to stabilize high temperature phases of Dicalcium silicate (C2S), and mineral waste as siliceous materials in complete replacement of clay. The clinker samples were soaked in Muffle Furnace at different burning temperatures and for various time durations, and then, cooled down to room temperature using air blower. Quantitative X-ray Diffraction analysis (QXRD) by Rietveld method indicates that major mineral components are Dicalcium Silicate (C2S), Ferrite (C2 (A0.48F1.52) O5) and trace amount of

APA, Harvard, Vancouver, ISO, and other styles

28

Naranjo, J. A., R. S. J. Sparks, M. V. Stasiuk, H. Moreno, and G. J. Ablay. "Morphological, structural and textural variations in the 1988–1990 andesite lava of Lonquimay Volcano, Chile." Geological Magazine 129, no. 6 (1992): 657–78. http://dx.doi.org/10.1017/s0016756800008426.

Full text

Abstract:

AbstractThe 1988–1990 eruption of Lonquimay Volcano, Chile (38°S) formed a 10.2 km long andesite lava with a volume of 0.23 km3 over a period of 13 months. The lava extrusion rate decreased with time as chamber pressure and vent dimensions decreased. The velocity of the flow front decreased exponentially with distance from vent as a consequence of cooling and the increase of apparent viscosity at the flow front. The lava developed a central channel which decreased in width and depth with time. Three prominent lava levées were formed on each margin and resulted from abandonment as the channel d

APA, Harvard, Vancouver, ISO, and other styles

29

Strigáč, Július. "Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality." Selected Scientific Papers - Journal of Civil Engineering 10, no. 2 (2015): 81–92. http://dx.doi.org/10.2478/sspjce-2015-0020.

Full text

Abstract:

Abstract The article deals with the study of the effects of alternative fuels and raw materials on the cement clinker quality. The clinker quality was expressed by the content of two principal minerals alite C3S and belite C2S. The additions of alternative fuels ashes and raw materials, in principle, always increased the belite content and conversely reduced the amount of alite. The alternative fuels with high ash content were used such as the meat-bone meal, sewage sludge from sewage treatment plants and paper sludge and the used alternative raw materials were metallurgical slags - granulated

APA, Harvard, Vancouver, ISO, and other styles

30

Tsamatsoulis, Dimitris. "Optimizing the Control System of Clinker Cooling: Process Modeling and Controller Tuning." ChemEngineering 5, no. 3 (2021): 50. http://dx.doi.org/10.3390/chemengineering5030050.

Full text

Abstract:

This paper aims to present efficient efforts to optimize the proportional-integral-differential (PID) controller of clinker cooling in grate coolers, which have a fixed grate and at least two moving ones. The process model contains three transfer functions between the speed of the moving grate and the pressures of the static and moving grates. The developed software achieves the identification of the model parameters using industrial data and by implementing non-linear regression methods. The design of the PID controller follows a loop-shaping technique, imposing as a constraint the maximum se

APA, Harvard, Vancouver, ISO, and other styles

31

Liu, Yan Jun, and Yong Chao Zheng. "Active Belite Cement Clinker Produced with Mineral Waste." Advanced Materials Research 610-613 (December 2012): 2378–85. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2378.

Full text

Abstract:

This paper presents a laboratory study on active belite cement linker using mineral waste as one of the major raw meal components. The main chemical component of mineral waste employed in this study is silica (SiO2), around 70%. The raw meals were soaked in Muffle Furnace at 1350oC for 10 minutes and 20minutes respectively, then, cooled down to room temperature using air blower. Boron Oxide was used to stabilize high temperature phases of C2S. QXRD analysis indicates that active belite cement clinker has major mineral components consisting of Dicalcium Silicate (C2S), Ferrite (C2 (A0.48F1.52)

APA, Harvard, Vancouver, ISO, and other styles

32

Günter, Franziska, Michaël Beaulieu, Massimo Brunetti, Lena Lange, Angela Schmitz Ornés, and Klaus Fischer. "Latitudinal and altitudinal variation in ecologically important traits in a widespread butterfly." Biological Journal of the Linnean Society 128, no. 3 (2019): 742–55. http://dx.doi.org/10.1093/biolinnean/blz133.

Full text

Abstract:

Abstract Understanding how organisms adapt to complex environments lies at the very heart of evolutionary biology and ecology, and is of particular concern in the current era of anthropogenic global change. Variation in ecologically important traits associated with environmental gradients is considered to be strong evidence for adaptive responses. Here, we study phenotypic variation along a latitudinal and an altitudinal cline in 968 field-collected males of the widespread European butterfly Pieris napi. In contrast to our expectations, body size decreased with increasing latitude and altitude

APA, Harvard, Vancouver, ISO, and other styles

33

VASIU, Teodor, and Adina BUDIUL BERGHIAN. "Determining the Reliability of Clincher Coolers." Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 41, no. 3 (2018): 51–56. http://dx.doi.org/10.35219/mms.2018.3.08.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Oyepata, J. S., M. A. Akintunde, O. A. Dahunsi, S. S. Yaru, and E. T. Idowu. "Impact of Specific Number of Air to Clinker on Clinker Cooling Process in Grate Coolers in a Cement Plant." IOP Conference Series: Materials Science and Engineering 1107, no. 1 (2021): 012099. http://dx.doi.org/10.1088/1757-899x/1107/1/012099.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Xie, Ying Bai, Yi Chen, and Ti Jun Wang. "Research on the Region Division for Supercritical CO₂ Cooling Heat Transfer in Gas Cooler." Advanced Materials Research 1008-1009 (August 2014): 1084–87. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.1084.

Full text

Abstract:

In gas cooler, a key component of transcritical heat pump system, CO2 is always in supercritical status. A well design gas cooler should get the full informations of supercritcal CO2 in-tube cooling heat transfer characteristic. An EES program is developed to calculate the supercritical CO2 cooling heat transfer performances based on 4 selected correlation equations. According to the results and the thermopgysical parameters of supercritical CO2, such as specific heat, density, thermal conductivity and dynamic viscosity, two region, the starting area of supercritical region and the main superc

APA, Harvard, Vancouver, ISO, and other styles

36

Aizen, Marcelo A., and Hilary Woodcock. "Latitudinal trends in acorn size in eastern North American species of Quercus." Canadian Journal of Botany 70, no. 6 (1992): 1218–22. http://dx.doi.org/10.1139/b92-153.

Full text

Abstract:

Latitudinal variation in acorn size was examined in 32 species of the genus Quercus geographically restricted to eastern North America. Within-species comparisons showed the existence of a prevalent trend: individuals at high latitude produce, on the average, smaller acorns than individuals of the same species at low latitude. This observed trend, clines of decreasing acorn size with increasing latitude, could represent (i) the selected or plastic response to a shorter and (or) cooler growing season constraining the size of acorns that can mature on a tree, (ii) a consequence of past size-sele

APA, Harvard, Vancouver, ISO, and other styles

37

Anuar, Muhammad Firdaus, Payam Shafigh, Azman Ma’amor, Sumra Yousuf, and Farid Wajdi Akashah. "Experimental Analysis of Changes in Cement Mortar Containing Oil Palm Boiler Clinker Waste at Elevated Temperatures in Different Cooling Conditions." Crystals 11, no. 8 (2021): 988. http://dx.doi.org/10.3390/cryst11080988.

Full text

Abstract:

Changes in cement-based materials containing waste after exposure to elevated temperatures are an important aspect that should be studied in developing sustainable construction materials. Modified cement-based materials obtained using the industrial waste present robust engineering properties can lead to sustainable development. This work evaluated the capacity of oil palm boiler clinker (OPBC) waste that had been produced during the palm oil extraction process as partial and full substitutions for natural sand to produce cement mortar. The mortar materials were cured under three different cur

APA, Harvard, Vancouver, ISO, and other styles

38

Zhou, Tao, Mengying Wang, Hao Ma, Xiang Li, Yoriko Heianza, and Lu Qi. "Dietary Fiber, Genetic Variations of Gut Microbiota-derived Short-chain Fatty Acids, and Bone Health in UK Biobank." Journal of Clinical Endocrinology & Metabolism 106, no. 1 (2020): 201–10. http://dx.doi.org/10.1210/clinem/dgaa740.

Full text

Abstract:

Abstract Context Dietary fiber intake may relate to bone health. Objective To investigate whether dietary fiber intake is associated with bone mineral density (BMD), and the modification effect of genetic variations related to gut microbiota-derived short-chain fatty acids (SCFAs). Design The associations of dietary fiber intake with estimated BMD derived from heel ultrasound and fractures were assessed in 224 630 and 384 134 participants from the UK Biobank. Setting UK Biobank. Main Outcome Measures Estimated BMD derived from heel ultrasound Results Higher dietary fiber intake (per standard d

APA, Harvard, Vancouver, ISO, and other styles

39

Close, D. C., N. J. Davidson, C. B. Shields, and R. Wiltshire. "Reflectance and phenolics of green and glaucous leaves of Eucalyptus urnigera." Australian Journal of Botany 55, no. 5 (2007): 561. http://dx.doi.org/10.1071/bt06037.

Full text

Abstract:

On Mount Wellington, Tasmania, Australia, there is an altitudinal cline in the juvenile leaf form of Eucalyptus urnigera from a green phenotype at lower altitudes (from 610 m) to a glaucous phenotype at higher altitudes (up to 1050 m). The objectives of this study were to (1) quantify reflectance of ultraviolet (UV) and photosynthetically active radiation (PAR) for the adaxial and abaxial surfaces of leaves of the glaucous and green phenotypes and (2) to investigate seasonal adjustment in photochemical efficiency (Fv/Fm) and tannin and flavonol compounds that absorb in UV spectrum. The followi

APA, Harvard, Vancouver, ISO, and other styles

40

Borsukiewicz-Gozdur, Aleksandra. "Exergy analysis of internal regeneration in supercritical cycles of ORC power plant." Archives of Thermodynamics 33, no. 3 (2012): 48–60. http://dx.doi.org/10.2478/v10173-012-0017-9.

Full text

Abstract:

Abstract In the paper presented is an idea of organic Rankine cycle (ORC) operating with supercritical parameters and so called dry fluids. Discussed is one of the methods of improving the effectiveness of operation of supercritical cycle by application of internal regeneration of heat through the use of additional heat exchanger. The main objective of internal regenerator is to recover heat from the vapour leaving the turbine and its transfer to the liquid phase of working fluid after the circulation pump. In effect of application of the regenerative heat exchanger it is possible to obtain im

APA, Harvard, Vancouver, ISO, and other styles

41

Stocker, Ann Jacob, Brad Foley, and Ary Hoffmann. "Inversion frequencies in Drosophila serrata along an eastern Australian transect." Genome 47, no. 6 (2004): 1144–53. http://dx.doi.org/10.1139/g04-078.

Full text

Abstract:

Clinal patterns over broad geographic regions provide a way of identifying characteristics of species under selection and are increasingly being used in quantitative trait locus mapping of adaptive genetic variation in Drosophila. However, interpretations of clinal patterns can be complicated by inversions that also vary clinally and reduce recombination in some parts of the genome. Drosophila serrata (Malloch) is an Australian endemic species being used to investigate the genetic basis of geographic variation in climatic adaptation and mate recognition. Here we describe inversions in D. serra

APA, Harvard, Vancouver, ISO, and other styles

42

Connoy, Jared W. H., Jessica A. Leivesley, Ronald J. Brooks, Jacqueline D. Litzgus, and Njal Rollinson. "Body size of ectotherms constrains thermal requirements for reproductive activity in seasonal environments." Canadian Journal of Zoology 98, no. 10 (2020): 651–59. http://dx.doi.org/10.1139/cjz-2019-0254.

Full text

Abstract:

Body size may influence ectotherm behaviour by influencing heating and cooling rates, thereby constraining the time of day that some individuals can be active. The time of day at which turtles nest, for instance, is hypothesized to vary with body size at both inter- and intra-specific levels because large individuals have greater thermal inertia, retaining preferred body temperatures for a longer period of time. We use decades of data on thousands of individual nests from Algonquin Park, Ontario, Canada, to explore how body size is associated with nesting behaviour in Painted Turtles (Chrysemy

APA, Harvard, Vancouver, ISO, and other styles

43

Cui, Jifa, Bingxin Wang, Shengnan Ji, Huawei Su, and Youbing Zhou. "Revisiting classic ecogeographical rules, using a widely distributed mouse species (Apodemus draco)." Animal Biology 70, no. 4 (2020): 359–72. http://dx.doi.org/10.1163/15707563-bja10012.

Full text

Abstract:

Abstract Ecogeographical rules predict an association between specific adaptive morphological/physiological traits and latitude, elevation or cooler climates. Such ecogeographical effects are often expressed most clearly in widely distributed species due to continuous selective adaptation occurring over their geographic range. Based on 40 population sampling sites of 116 adult individuals (female, ; male, ) across an elevational range of 191–2573 m, we tested whether morphological traits accorded with predictions of Bergmann’s rule, Allen’s rule and Hesse’s rule for the South China field mouse

APA, Harvard, Vancouver, ISO, and other styles

44

Zdilla, Matthew J. "The Hand of Sabazios: Evidence of Dupuytren’s Disease in Antiquity and the Origin of the Hand of Benediction." Journal of Hand Surgery (Asian-Pacific Volume) 22, no. 03 (2017): 403–10. http://dx.doi.org/10.1142/s0218810417970012.

Full text

Abstract:

Dupuytren’s disease gained its eponym from the surgeon Baron Guillaume Dupuytren (1777-1835). However, the terms “Cline’s contracture” and “Cooper’s contracture,” named after the two surgeons who proposed the treatment for the palmar contractures prior to Dupuytren, have also been used to describe the disease. In addition to the eponyms attributed to these three surgeons, a number of other appellations with interesting provenance exist for Dupuytren’s disease including the “Curse of the MacCrimmons,” “Celtic hand,” “Viking’s disease,” and the “Hand of Benediction.” These terms all have interes

APA, Harvard, Vancouver, ISO, and other styles

45

Sáenz-Romero, Cuauhtémoc, Antoine Kremer, László Nagy, et al. "Common garden comparisons confirm inherited differences in sensitivity to climate change between forest tree species." PeerJ 7 (January 15, 2019): e6213. http://dx.doi.org/10.7717/peerj.6213.

Full text

Abstract:

The natural distribution, habitat, growth and evolutionary history of tree species are strongly dependent on ecological and genetic processes in ecosystems subject to fluctuating climatic conditions, but there have been few experimental comparisons of sensitivity between species. We compared the responses of two broadleaved tree species (Fagus sylvatica and Quercus petraea) and two conifer tree species (Pinus sylvestris and Picea abies) to climatic transfers by fitting models containing the same climatic variables. We used published data from European provenance test networks to model the resp

APA, Harvard, Vancouver, ISO, and other styles

46

"Utilization of Waste Heat Recovery in Jordan Cement Factories." International Journal of Innovative Technology and Exploring Engineering 9, no. 2S3 (2019): 523–25. http://dx.doi.org/10.35940/ijitee.b1124.1292s319.

Full text

Abstract:

This research aims to investigate the potential of using the exhaust gases generated through the cement industry, to reduce the electricity consumption rate of the grid in the cement factory using a suggested design of thermodynamic cycle, which will lead to an improvement of the overall energy efficiency in the plant. Results showed that simple Rankine cycle came up to have the highest efficiency which is equal to 21 % and the most suitable cycle to cement factories with production capacity equal to 3500 ton/day of clinker or more where the temperature range of the cooler exhaust gases is (30

APA, Harvard, Vancouver, ISO, and other styles

47

Hongyi, Wang, Zhang Kun, Zhu Xinjun, Song Limei, and Dong Feng. "Multi-objective optimization design of cement grate cooler control system based on improved long short-term memory network." Transactions of the Institute of Measurement and Control, June 27, 2021, 014233122110230. http://dx.doi.org/10.1177/01423312211023017.

Full text

Abstract:

For the cement production process, the optimization method of the grate cooler is important in reducing energy consumption and ensuring product quality. As a complicated and slow control process, there are several control objectives of the grate cooler, which are determined by design parameters. To compute the time delay of the design parameters automatically, we propose an improved long short-term memory with adaptive computation time (ACT-LSTM) model for objective prediction. An improved multi-objective optimization algorithm named bounded stable non-dominated sorting genetic algorithm II (B

APA, Harvard, Vancouver, ISO, and other styles

48

Makmur, Mohamad Miftah Fadlika, Alvian Toto Wibisono, and Lukman Noerochim. "Analisis Kegagalan Komponen Driver Plate dalam Cooler Clinker Pada Unit Tuban I PT. Semen Indonesia Tbk." Jurnal Teknik ITS 6, no. 2 (2017). http://dx.doi.org/10.12962/j23373539.v6i2.24490.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

V, Chkheidze. "Local Raw Material, Fuel and Clinker Production Processing with 5 Stage PreCalciner Kiln and Grate Cooler in Georgia." Progress in Petrochemical Science 4, no. 1 (2021). http://dx.doi.org/10.31031/pps.2021.04.000577.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

CIOBANU, CRISTIAN, GHEORGHE VOICU, MAGDALENA –. LAURA TOMA, and PAULA TUDOR. "EMISSIONS MONITORING OF HEAVY METALS AND THEIR COMPOUNDS RESULTED FROM COMBUSTION PROCESSES IN CLINKER KILNS IN ROMANIA." Journal of Engineering Studies and Research 24, no. 1 (2018). http://dx.doi.org/10.29081/jesr.v24i1.286.

Full text

Abstract:

<p>With the dust arising from the clinker kilns and grill coolers (the major pollution sources in a cement plant), also heavy metals and their compounds (in the form of powders and vaporous), originating from fuels and raw materials, are pumped into the air. The paper presents some aspects regarding the monitoring of heavy metals contained in the combustion gases from a Romanian cement factory. The fuels used in the incinerator varied from coal/petroleum coke, refuse oils (from waste oils and their emulsions, up to sludge, paraffin, tars, contaminated soil), rubber (including whole used

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!