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Correlations for estimating solar radiation using sunshine hours and temperature measurement in Osogbo, Osun State, Nigeria

O. S. OHUNAKIN, M. S. ADARAMOLA, O. M. OYEWOLA, R. O. FAGBENLE

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 214-222 doi: 10.1007/s11708-013-0241-2

Abstract: In this study, the global solar radiation on horizontal surface in Osogbo, Osun state, Nigeria was analyzed using 11-year data (1997–2007). Correlations using linear and quadratic expressions were developed to relate the global solar radiation on horizontal surface based on relative sunshine hours and temperature measurements for evaluating the monthly average daily global solar radiation. The calculated monthly clearness index values indicate that the prevailing weather condition in Osogbo is heavily overcast. All the developed quadratic correlations gave better correlation coefficients (0.834, 0.872 and 0.823 respectively) than the linear models. However, the Hargreaves and Samani related based quadratic model gave the best among the three developed quadratic expressions and is therefore suggested for estimating the monthly global radiation in this site and its surroundings.

Keywords： global solar radiation     Hargreaves model     sunshine hour     ambient temperatures     Osogbo    

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An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 362-371 doi: 10.1007/s11705-011-1106-z

Abstract: The bed temperatures were optimized in order to enhance the sulfur recovery for a given acid gas feed

Keywords： Claus unit     concentration of H2S     tail gas ratio     sulfur recovery     catalytic bed    

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Prediction of the theoretical and semi-empirical model of ambient temperature

Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 268-276 doi: 10.1007/s11708-016-0413-y

Abstract: It is well known that the ambient temperature is a sensitive parameter which has a great effect on biologyAs a result, temperature profiles can be developed which accurately represent the expected ambient temperatureThe ambient temperature over time is modeled based on the previous and data and using a LagrangeTo observe the comprehensive variation of ambient temperature the profile must be determined numericallyThe model proposed in this paper can provide an acceptable way to measure the change in ambient temperature

Keywords： ambient temperature     environment     correlation     theoretical model     semi-empirical    

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Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 516-526 doi: 10.1007/s11708-022-0844-6

Abstract: present study, an SPR was designed and manufactured to work between the liquid hydrogen and liquid oxygen temperatures

Keywords： Stirling/pulse tube refrigerator     displacer displacement     space application     phase shift     energy distribution    

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Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1475-6

Abstract:

• The concentrations of 13 heavy metals in Taihu Lake were analyzed.

Keywords： Heavy metals     Human health ambient water quality criteria     Taihu Lake     Health risk assessment     Contribution    

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Chemisorption solid materials for hydrogen storage near ambient temperature: a review

Yiheng ZHANG, Shaofei WU, Liwei WANG, Xuefeng ZHANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 72-101 doi: 10.1007/s11708-022-0835-7

Abstract: technologies for hydrogen storage, especially high-efficiency hydrogen storage of fuel cells in near ambientHowever, there are several challenges to be solved at near ambient temperature, i.e., unclear hydrogenreview, the characteristics and modification methods of chemisorption hydrogen storage materials at near ambient

Keywords： hydrogen storage capacity     chemisorption     near-ambient-temperature     modification methods     alloy hydrides    

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Hygroscopicity of ambient submicron particles in urban Hangzhou, China

Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 342-347 doi: 10.1007/s11783-011-0358-7

Abstract: In this study, hygroscopicity of size-segregated ambient submicron particles in urban Hangzhou was studiedparticles in urban Hangzhou were almost entirely externally mixed, and the hygroscopic properties of ambient

Keywords： hygroscopicity     hygroscopic tandem differential mobility analyzer (H-TDMA)     submicron ambient particles    

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Effect of ambient polycyclic aromatic hydrocarbons and nicotine on the structure of Aβ protein

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1615-2

Abstract:

● B[a]P, nicotine and phenanthrene molecules altered the secondary structure of Aβ42.

Keywords： Polycyclic aromatic hydrocarbons     Nicotine     toxicology     Aβ42 peptide     Alzheimer’s disease     Molecular dynamics simulations     Environmental pollution    

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Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient

Yujing Liu, Xiao Han, Balati Kuerbanjiang, Vlado K. Lazarov, Lidija Šiller

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 954-959 doi: 10.1007/s11705-020-2028-4

Abstract: Here we present an economical ambient pressure drying method of preparing monolithic silica aerogels

Keywords： silica aerogel     methyltrimethoxysilane     solvent exchange     sodium bicarbonate     trimethylchlorosilane     ambient    

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Ambient Noise Tomography for Coral Islands Article

Shaohong Xia, Changrong Zhang, Jinghe Cao

Engineering 2023, Volume 25, Issue 6,   Pages 182-193 doi: 10.1016/j.eng.2021.09.022

Abstract: While ambient noise tomography with dense arrays has been widely used in continental regions, its applicabilitydata recorded by a dense array on an isolated coral island in the South China Sea, we analyzed the ambientnoise characteristics and obtained a 3D subsurface structure of the coral island using ambient noiseWe made the following findings: ① The ambient noise frequencies can be roughly categorized into threeHowever, it was difficult to extract meaningful cross-correlation functions for ambient noise frequencies

Keywords： Coral island     Ambient noise tomography     Engineering geology     South China Sea    

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Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambient

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1718-9

Abstract:

● Energy harvesters harness multiple energies for self-powered water purification.

Keywords： Piezocatalysis     Solar energy     Waste heat     Decentralized water treatment     Point-of-use     Nanogenerator    

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Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 281-285 doi: 10.1007/s11709-007-0036-9

Abstract: were combined to identify the modal parameters in the time domain of a structure excited by simulated ambientexperimental modal analysis was performed on a two-story steel braced frame model excited by simulated ambient

Keywords： eigensystem realization     eigen-sensitivity analysis     realization algorithm     vibration     effective    

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Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1705-1

Abstract:

● A study assessing the temperature-injury relationship was conducted among students.

Keywords： Ambient temperature     Fall     Road traffic injury     Student     China    

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Predictive model to decouple the contributions of friction and plastic deformation to machined surface temperatures

Subhash ANURAG, Yuebin GUO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 247-255 doi: 10.1007/s11465-010-0097-7

Abstract: High temperatures are produced when more materials are plowed under the cutting edge.A large tool/work friction leads to higher surface temperatures, and the use of a cutting tool with physicalproperties in process simulation significantly improves the accuracy of predicted surface temperatures

Keywords： surface temperature     friction     residual stress     finite element analysis (FEA)     dry cutting     tool property    

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Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 722-731 doi: 10.1007/s11709-023-0950-5

Abstract: products, which indicates the rapid hydration of CSA cement-based grouts at the early stage at low temperatures

Keywords： permafrost     low temperatures     calcium sulfoaluminate cement-based grouts     hydration reaction     compressive    

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Title Author Date Type Operation

Correlations for estimating solar radiation using sunshine hours and temperature measurement in Osogbo, Osun State, Nigeria

O. S. OHUNAKIN, M. S. ADARAMOLA, O. M. OYEWOLA, R. O. FAGBENLE

Journal Article

An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Journal Article

Prediction of the theoretical and semi-empirical model of ambient temperature

Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI

Journal Article

Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Journal Article

Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Journal Article

Chemisorption solid materials for hydrogen storage near ambient temperature: a review

Yiheng ZHANG, Shaofei WU, Liwei WANG, Xuefeng ZHANG

Journal Article

Hygroscopicity of ambient submicron particles in urban Hangzhou, China

Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO

Journal Article

Effect of ambient polycyclic aromatic hydrocarbons and nicotine on the structure of Aβ protein

Journal Article

Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient

Yujing Liu, Xiao Han, Balati Kuerbanjiang, Vlado K. Lazarov, Lidija Šiller

Journal Article

Ambient Noise Tomography for Coral Islands

Shaohong Xia, Changrong Zhang, Jinghe Cao

Journal Article

Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambient

Journal Article

Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Journal Article

Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries

Journal Article

Predictive model to decouple the contributions of friction and plastic deformation to machined surface temperatures

Subhash ANURAG, Yuebin GUO,

Journal Article

Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Journal Article