Now showing items 10627-10646 of 26977

    • Heat stress impairs proprioception but not running mechanics 

      Mtibaa K.; Zarrouk N.; Girard O.; Ryu J.H.; Hautier C.; ... more authors ( Elsevier Ltd , 2019 , Article)
      Objectives To determine the effects of heat stress on ankle proprioception and running gait pattern. Design Counterbalanced repeated measures. Methods 12 trained runners performed a proprioception test (active ...
    • Heat transfer analysis of regenerative thermo-mechanical refrigeration system 

      Sleiti, Ahmad K.; Al- Khawaja, Mohammed ( American Society of Mechanical Engineers (ASME) , 2020 , Conference Paper)
      Refrigeration systems contribute to the critical environmental concerns including global warming and ozone depletion. It is necessary to develop new systems that use renewable energy resources and waste heat to perform the ...
    • Heat Transfer Attributes of Gold–Silver–Blood Hybrid Nanomaterial Flow in an EMHD Peristaltic Channel with Activation Energy 

      Souayeh, Basma; Ramesh, Katta; Hdhiri, Najib; Yasin, Essam; Alam, Mir Waqas; ... more authors ( MDPI , 2022 , Article)
      The heat enhancement in hybrid nanofluid flow through the peristaltic mechanism has received great attention due to its occurrence in many engineering and biomedical systems, such as flow through canals, the cavity flow ...
    • Heat Transfer Characteristics of Fractionalized Hydromagnetic Fluid with Chemical Reaction in Permeable Media 

      Souayeh, Basma; Abro, Kashif; Alnaim, Nisrin; Alnuwairan, Muneera; Hdhiri, Najib; ... more authors ( MDPI , 2022 , Article)
      This manuscript optimizes the conjugate heat transfer and thermal-stress analysis for hydromagnetic Brinkman fluid with chemical reaction in permeable media. The governing equations of non-Newtonian Brinkman fluid have ...
    • Heat transfer enhancement of nanofluids using iron nanoparticles decorated carbon nanotubes 

      Manasrah, Abdallah D.; Al-Mubaiyedh, Usamah A.; Laui, Tahar; Ben-Mansour, Rached; Al-Marri, Mohammed J.; ... more authors ( Elsevier Ltd , 2016 , Article)
      Enhancing heat transfer in thermal fluid systems can contribute significantly towards the improvement of thermal efficiency resulting in reducing energy consumption and hence carbon emission. Conventional fluids like water ...
    • Heat transfer measurements of Polyalpha-Olefin- boron nitride nanofluids for thermal management and lubrication applications 

      Sleiti, Ahmad K. ( Elsevier , 2020 , Article)
      In this paper, the first study is reported combining Polyalpha-Olefin (PAO) oil with hexagonal Boron Nitride (hBN) to produce new class of nanofluids for heat transfer and lubrication applications. The heat transfer ...
    • Heat transfer performance of paraffin wax based phase change materials applicable in building industry 

      Sobolciak, Patrik; Abdelrazeqa, Haneen; Ozerkan, Nesibe Gozde; Ouederni, Mabrouk; Nogellova, Zuzana; ... more authors ( Elsevier Ltd , 2016 , Article)
      Thermal characterization of phase change materials (PCMs) compose of linear low-density polyethylene (LLDPE), paraffin wax (W) with a melting point of 25 °C, and expanded graphite (EG), that are highly effective in thermal ...
    • Heat-stress-induced changes in enzymatic antioxidant activities and biochemical processes in bell pepper (Capsicum annuum L.) seedlings 

      Bello, Adewale Suraj; Ahmed, Talaat; Saadaoui, Imen; Hamdi, Helmi; Ben-Hamadou, Radhouane ( Turkiye Klinikleri , 2023 , Article)
      Heat stress (HS) is expected to become a significant abiotic stressor with the continued rise in global temperatures, severely limiting the development and production of bell pepper (Capsicum annuum L.), especially in arid ...
    • Heavy metal ions removal from industrial wastewater using magnetic nanoparticles (MNP) 

      Almomani F.; Bhosale R.; Khraisheh M.; kumar A.; Almomani T. ( Elsevier B.V. , 2020 , Article)
      A novel iron oxide magnetic nanoparticles (MNPs) grafted on hyperbranched polyglycerol (HPG) polymer were synthesized, characterized and tested for heavy metals (Ni, Cu and AL) removals from secondary effluent industrial ...
    • Heavy metal removal from aqueous solution by advanced carbon nanotubes: Critical review of adsorption applications 

      Ihsanullah; Abbas, Aamir; Al-Amer, Adnan M.; Laoui, Tahar; Al-Marri, Mohammed J.; ... more authors ( Elsevier , 2016 , Article Review)
      The scarcity of water, especially in arid and semi-arid regions of the world is exerting great pressure on resources and establishing more need to provide good quality water for human and other consumptions. Water ...
    • Heavy Metals Concentration Levels in some Fish Species in the Red Sea and Gulf of Aden-Yemen 

      Al Shwafi, Nabil A. A. [نبيل عبده احمد الشوافي] ( Qatar University , 2002 , Article)
      Level of heavy metals (Zn, Cu, Pb, and Cd) in four species of fish; manly, fish, Crenidens Crenidens, Scomberomorus Commerson, Rastrelliger Kanagurta, Thunnus Albacares were studied in the Red Sea of Yemen and the Gulf of ...
    • Heavy metals concentrations in Otolithes ruber and Pampus argenteus location from the Gulf 

      Mortezawi, Mohamed Seddiq ( Qatar University , 1999 , Article)
      For dermination of the Concentration of six heavy metals ( Cu, Fe, Mn, Zn, Cd, Pb) in the muscle of Oyuber and Py argenteus. Eighty samples were collected from north Qeshm Island in the Persian gulf. For digestion of samples ...
    • Heavy Metals Hyperaccumulation and the Role of Stress-Induced Proteins in Phytoremediation Mechanism in Selected Qatari Plants 

      USMAN, KAMAL (2020 , Dissertation)
      Progressive pollution of the environment by trace and heavy metals pose a significant risk and causes diverse human diseases. Current world initiatives to remove these toxic substances from the environment are costly and ...
    • Heavy minerals and provenance of the paleozoic suffi formation, Western desert, iraq. 

      Al Juboury, Ali I. [علي الجبوري]; Hassan, Zeki M. ( Qatar University , 1996 , Article)
      Heavy minerals analyses were carried out on 10 samples from the clastic Suffi Formation (the Ordovician-Carboniferous unit in the western Iraqi desert). The suite of minerals consists mainly of opaque minerals including ...
    • Hedgehogs on the move: Testing the effects of land use change on home range size and movement patterns of free-ranging Ethiopian hedgehogs 

      Abu Baker, Mohammad A.; Reeve, Nigel; Conkey, April A. T.; Macdonald, David W.; Yamaguchi, Nobuyuki ( Public Library of Science , 2017 , Article)
      Degradation and alteration of natural environments because of agriculture and other land uses have major consequences on vertebrate populations, particularly on spatial organization and movement patterns. We used GPS ...
    • Hedging UK stock portfolios with gold and oil: The impact of Brexit 

      Abuzayed, Bana; Al-Fayoumi, Nedal; Bouri, Elie ( Elsevier , 2022 , Article)
      The purpose of this paper is to examine dynamic co-movements and portfolio management strategies between UK stock indices (aggregate market index and sector indices) and each of gold and crude oil futures markets, during ...
    • Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: a pooled analysis of 2181 population-based studies with 65 million participants 

      Andrea, Rodriguez-Martinez; Zhou, Bin; Sophiea, Marisa K; Bentham, James; Paciorek, Christopher J; ... more authors (2020 , Article)
      Background Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which ...
    • Heighting Accuracy Of Spot Imagery 

      Diefallah, M. A. M. ( Qatar University , 1991 , Article)
      The SPOT imaging system is the first sensor with stereoscopic capability and global continuous coverage. Stereopairs with overlap and base to height ratio suitable for the extraction of height information with reasonable ...
    • Helicobacter pylori and epithelial mesenchymal transition in human gastric cancers: An update of the literature 

      Jamal Eddin, Tala M.; Nasr, Shahd M.O.; Gupta, Ishita; Zayed, Hatem; Al Moustafa, Ala-Eddin ( Elsevier , 2023 , Article Review)
      Gastric cancer, a multifactorial disease, is considered one of the most common malignancies worldwide. In addition to genetic and environmental risk factors, infectious agents, such as Epstein-Barr virus (EBV) and Helicobacter ...
    • Helium separation through polymeric membranes: selectivity targets 

      Scholes, Colin A.; Ghosh, Ujjal ( Elsevier , 2016 , Article)
      Gas separation membranes have the potential to recovery and purify helium from natural gas. This can be through direct separation of helium from methane or as part of a natural gas liquefaction process where helium is ...