GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Analysis of Structural, Optical, and Aquaphobic Properties of Zirconium Oxide Nanofilms by Varying Sputtering Gas
    Hindawi Limited ; 2022
    In:  Advances in Materials Science and Engineering Vol. 2022 ( 2022-1-30), p. 1-7
    Details
    In: Advances in Materials Science and Engineering, Hindawi Limited, Vol. 2022 ( 2022-1-30), p. 1-7
    Abstract: The problem of contamination in ceramic insulators was found to be frequent in power transmission lines and transformers. The key aim was to develop aquaphobic zirconium oxide (ZrO2) thin films using DC reactive magnetron sputtering over glass insulators to mitigate contamination problems. This was achieved by introducing O2 and Ar gas in the sputtering chamber, and three properties, namely, structural, optical, and aquaphobic, were inspected by changing the sputtering gas ratio (oxygen/argon). These properties were chosen based on comparison with the bulk ZrO2. These deposited ZrO2 samples were identified by X-ray diffractometer (XRD), atomic force microscopy (AFM), UV-Vis-NIR spectrophotometer, and contact angle goniometer (CAG). For all the samples, coatings were found to be limpid, clear, and aquaphobic. Coarseness (62.813 nm) and the contact angle made by water to the surface (107.45°) were found utmost as deposited at 0.25 oxygen/argon gas ratios. The transmittance and band gap were also found to be 90% and 5.33 eV, respectively, at this particular ratio.
    Type of Medium: Online Resource
    ISSN: 1687-8442 , 1687-8434
    URL: Article
    DOI: 10.1155/2022/9968485
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2501025-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Double Meniscal Ossicle, the First Description: CT and MRI Findings—Different Etiologies
    Hindawi Limited ; 2015
    In:  Case Reports in Radiology Vol. 2015 ( 2015), p. 1-4
    Details
    In: Case Reports in Radiology, Hindawi Limited, Vol. 2015 ( 2015), p. 1-4
    Abstract: We present a case of 2 ossicles in the medial meniscus with emphasis on MRI and CT findings. Meniscal ossicle is a rare entity and is quite uncommon on the medial side. By showing the typical signal characteristics and intrameniscal location, MRI can be helpful in distinguishing this from other more clinically significant abnormalities. It should be kept as differential from synovial chondromatosis or sesamoid bones like fabella as management is different for all of these entities.
    Type of Medium: Online Resource
    ISSN: 2090-6862 , 2090-6870
    URL: Article
    DOI: 10.1155/2015/737506
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2015
    detail.hit.zdb_id: 2627655-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Antioxidant Capacity and Radical Scavenging Effect of Polyphenol Rich Mallotus philippenensis Fruit Extract on Human Erythrocytes: An In Vitro Study
    Hindawi Limited ; 2014
    In:  The Scientific World Journal Vol. 2014 ( 2014), p. 1-12
    Details
    In: The Scientific World Journal, Hindawi Limited, Vol. 2014 ( 2014), p. 1-12
    Abstract: Mallotus philippinensis is an important source of molecules with strong antioxidant activity widely used medicinal plant. Previous studies have highlighted their anticestodal, antibacterial, wound healing activities, and so forth. So, present investigation was designed to evaluate the total antioxidant activity and radical scavenging effect of 50% ethanol fruit glandular hair extract (MPE) and its role on Human Erythrocytes. MPE was tested for phytochemical test followed by its HPLC analysis. Standard antioxidant assays like DPPH, ABTS, hydroxyl, superoxide radical, nitric oxide, and lipid peroxidation assay were determined along with total phenolic and flavonoids content. Results showed that MPE contains the presence of various phytochemicals, with high total phenolic and flavonoid content. HPLC analysis showed the presence of rottlerin, a polyphenolic compound in a very rich quantity. MPE exhibits significant strong scavenging activity on DPPH and ABTS assay. Reducing power showed dose dependent increase in concentration absorption compared to standard, Quercetin. Superoxide, hydroxyl radical, lipid peroxidation, nitric oxide assay showed a comparable scavenging activity compared to its standard. Our finding further provides evidence that Mallotus fruit extract is a potential natural source of antioxidants which have a protective role on human Erythrocytes exhibiting minimum hemolytic activity and this justified its uses in folklore medicines.
    Type of Medium: Online Resource
    ISSN: 2356-6140 , 1537-744X
    URL: Article
    DOI: 10.1155/2014/279451
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2014
    detail.hit.zdb_id: 2075968-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Bauhinia variegata Leaf Extracts Exhibit Considerable Antibacterial, Antioxidant, and Anticancer Activities
    Hindawi Limited ; 2013
    In:  BioMed Research International Vol. 2013 ( 2013), p. 1-10
    Details
    In: BioMed Research International, Hindawi Limited, Vol. 2013 ( 2013), p. 1-10
    Abstract: The present study reports the phytochemical profiling, antimicrobial, antioxidant, and anticancer activities of Bauhinia variegata leaf extracts. The reducing sugar, anthraquinone, and saponins were observed in polar extracts, while terpenoids and alkaloids were present in nonpolar and ethanol extracts. Total flavonoid contents in various extracts were found in the range of 11–222.67 mg QE/g. In disc diffusion assays, petroleum ether and chloroform fractions exhibited considerable inhibition against Klebsiella pneumoniae . Several other extracts also showed antibacterial activity against pathogenic strains of E. coli , Proteus spp. and Pseudomonas spp. Minimum bactericidal concentration (MBC) values of potential extracts were found between 3.5 and 28.40 mg/mL. The lowest MBC (3.5 mg/mL) was recorded for ethanol extract against Pseudomonas spp. The antioxidant activity of the extracts was compared with standard antioxidants. Dose dependent response was observed in reducing power of extracts. Polar extracts demonstrated appreciable metal ion chelating activity at lower concentrations (10–40  μ g/mL). Many extracts showed significant antioxidant response in beta carotene bleaching assay. AQ fraction of B. variegata showed pronounced cytotoxic effect against DU-145, HOP-62, IGR-OV-1, MCF-7, and THP-1 human cancer cell lines with 90–99% cell growth inhibitory activity. Ethyl acetate fraction also produced considerable cytotoxicity against MCF-7 and THP-1 cell lines. The study demonstrates notable antibacterial, antioxidant, and anticancer activities in B. variegata leaf extracts.
    Type of Medium: Online Resource
    ISSN: 2314-6133 , 2314-6141
    URL: Article
    DOI: 10.1155/2013/915436
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2013
    detail.hit.zdb_id: 2698540-8
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Genotype Variations and Association between PAI-1 Promoter Region (4G/5G and -844G/A) and Susceptibility to Acute Myocardial Infarction and Chronic Stable Angina
    Hindawi Limited ; 2021
    In:  Cardiology Research and Practice Vol. 2021 ( 2021-6-25), p. 1-9
    Details
    In: Cardiology Research and Practice, Hindawi Limited, Vol. 2021 ( 2021-6-25), p. 1-9
    Abstract: The present study aimed at investigating the 4G/5G and -844G/A polymorphisms and plasma concentration of PAI-1 in patients with acute myocardial infarction (AMI) and chronic stable angina (CSA) in Indian population. It included 100 patients with AMI and stable angina and 100 healthy controls. All study subjects were typed for two PAI polymorphisms (4G/5G and -844G/A) through PCR-RFLP and level of PAI through ELISA. The comparison of AMI and CSA independently with control in terms of PAI-1 level was statistically significant but not between AMI and CSA. The frequency of 4G/4G and 4G/5G genotype and 4G allele was significantly higher in AMI cases than in control and was found to increase the risk of AMI. There was a significant relationship between 4G/5G polymorphism and AMI risk under the dominant and codominant genotype. The frequency of 4G/4G genotype and 4G allele was significantly higher in CSA cases than in control group and increases the risk of CSA. There was no significant association between 4G/5G polymorphism and CSA risk under recessive, dominant, and codominant models. The genotype and allelic frequencies difference between the cases (AMI and CSA) and control with regard to -844G/A polymorphisms were statistically nonsignificant. Also, we did not detect any significant association of -844G/A polymorphism with AMI and CSA in recessive, dominant, and codominant models. Along with the traditional risk factors, the 4G/5G allele polymorphism is an independent risk factor for the development of AMI. The detection of 4G/5G allele may therefore be helpful in primary prevention. Patients who carry the 4G/5G allele polymorphism have high concentrations of PAI-1, which might be involved in incidents leading to AMI. The present study for the first time revealed significant association of 4G/5G allele polymorphism with high risk of AMI in Indian population and will be helpful in identifying the genetic risk factors associated with AMI and CSA and for better management of diagnostic measures.
    Type of Medium: Online Resource
    ISSN: 2090-0597 , 2090-8016
    URL: Article
    DOI: 10.1155/2021/5551031
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2021
    detail.hit.zdb_id: 2506187-2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Experimental Analysis on the Feasibility of Bamboo Reinforcement in Concrete Mix Design and Comparison with Steel Reinforced Concrete
    Hindawi Limited ; 2023
    In:  Advances in Materials Science and Engineering Vol. 2023 ( 2023-9-14), p. 1-11
    Details
    In: Advances in Materials Science and Engineering, Hindawi Limited, Vol. 2023 ( 2023-9-14), p. 1-11
    Abstract: Besides being chief construction ingredients, concrete and steel produce a high amount of CO2, and high energy consumption promotes global warming. To evade this problem, green and low energy consuming alternative is required. Rapid growing time with the least period to attend optimum strength made bamboo a new immerging mainstream constituent in construction. Bamboo, as one of the probable alternate structural materials, not only promises a sustainable and sturdy option but also reduces the environmental carbon footprint. In this research, article authors replaced steel reinforcement in concrete with bamboo. To establish bamboo as a construction material, a concrete beam of 200 mm × 500 mm is made in which bamboo bars of diameter 20 mm are used with a variation of 1 to 4% of the reinforcement area. Various tests were performed to provide the feasibility of bamboo as construction materials after 28 days of curing, in which test results were found promising. The impact test shows only 25% of wear and tear. Also, bamboo reinforced concrete (BRC) without changing cross sections provided 50% axial compressive strength compared to steel reinforced concrete (SRC). However, in the tensile test, BRC outperformed SRC by providing 50% more resistance against tensile load. Authors also performed rate analysis between SRC and BRC to find that it almost reduces 18% of the cost at a small scale. Hence here, comparative research is provided, and the authors believe that it would pave the road on which forthcoming researchers will walk to reach the destination of finding an alternate, sustainable, and green construction material in the form of bamboo.
    Type of Medium: Online Resource
    ISSN: 1687-8442 , 1687-8434
    URL: Article
    DOI: 10.1155/2023/6931291
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2023
    detail.hit.zdb_id: 2501025-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Rhinosporidiosis: A Rare Cause of Proptosis and an Imaging Dilemma for Sinonasal Masses
    Hindawi Limited ; 2016
    In:  Case Reports in Otolaryngology Vol. 2016 ( 2016), p. 1-5
    Details
    In: Case Reports in Otolaryngology, Hindawi Limited, Vol. 2016 ( 2016), p. 1-5
    Abstract: Background. Rhinosporidiosis is a common disease entity in tropical countries; however, it can be encountered in other parts of the world as well due to increasing medical tourism. It may mimic other more malignant and vigorous pathologies of the involved part. Case Report. We present a case of a 36-year-old male presenting with proptosis due to involvement of nasolacrimal duct which is rare. We will discuss typical CT and MRI features of the disease which were present in the case. Conclusion. For a surgeon and a radiologist, this is a necessary differential to be kept in mind for sinonasal masses. CT and MRI are invaluable investigations. However, FNAC is confirmatory. Both clinical and radiological aspects are required to reach correct diagnosis.
    Type of Medium: Online Resource
    ISSN: 2090-6765 , 2090-6773
    URL: Article
    DOI: 10.1155/2016/3573512
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2016
    detail.hit.zdb_id: 2648756-1
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Hybrid Novel Additive Manufacturing for Sustainable Usage of Waste
    Hindawi Limited ; 2022
    In:  Journal of Nanomaterials Vol. 2022 ( 2022-5-31), p. 1-12
    Details
    In: Journal of Nanomaterials, Hindawi Limited, Vol. 2022 ( 2022-5-31), p. 1-12
    Abstract: Additive manufacturing (AM) encompasses many forms of technologies and materials as 3D printing is being used in almost all industries. The variety of materials used includes but is not limited to plastics, ceramics, resins, metals, sand, textiles, biomaterials, glass, and food. Currently, in 3D printing technology, the printing mode of direct writing forming is widely applied. The raw material used is ceramic powder, and the direct writing forming of the ceramic could be applied to various fields of materials, chemistry, chemical engineering, and the like. This work is aimed at printing the nanopowder of nonsegregated waste into conventional components. The work is related to a system for converting nonsegregated waste material into the synthesized dough, comprising of a chamber, an ultraviolet (UV) disinfectant unit, a shedder, and a storage unit. The nonsegregated waste material is stored inside the chamber which dispenses the nonsegregated waste material into the UV disinfectant unit; said UV disinfectant unit removes the harmful germs and water content in the nonsegregated waste material to form solid waste. The disinfected solid waste enters the shedder which powders the solid waste. The powdered solid waste is stored in the storage unit. The powdered solid waste is mixed with components in a mixer to form a synthesized dough. The synthesized dough as the printable source is sent to a 3D printer which prints desired final component. The hardness value obtained for the printed component is 70 Brinell hardness units.
    Type of Medium: Online Resource
    ISSN: 1687-4129 , 1687-4110
    URL: Article
    DOI: 10.1155/2022/2697036
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2229480-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Curvelet Transform Based Compression Algorithm for Low Resource Hyperspectral Image Sensors
    Hindawi Limited ; 2023
    In:  Journal of Electrical and Computer Engineering Vol. 2023 ( 2023-2-20), p. 1-18
    Details
    In: Journal of Electrical and Computer Engineering, Hindawi Limited, Vol. 2023 ( 2023-2-20), p. 1-18
    Abstract: The wavelet transform is widely used in the task of hyperspectral image compression (HSIC). They have achieved outstanding performance in the compression of a hyperspectral (HS) image, which has attracted great interest. However, transform based hyperspectral image compression algorithm (HSICA) has low-coding gain than the other state of art HSIC algorithms. To solve this problem, this manuscript proposes a curvelet transform based HSIC algorithm. The curvelet transform is a multiscale mathematical transform that represents the curve and edges of the HS image more efficiently than the wavelet transform. The experiment results show that the proposed compression algorithm has high-coding gain, low-coding complexity, at par coding memory requirement, and works for both (lossy and lossless) compression. Thus, it is a suitable contender for the compression process in the HS image sensors.
    Type of Medium: Online Resource
    ISSN: 2090-0155 , 2090-0147
    URL: Article
    DOI: 10.1155/2023/8961271
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2023
    detail.hit.zdb_id: 2582829-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Improved Parameter Estimation for First-Order Markov Process
    Hindawi Limited ; 2009
    In:  Research Letters in Signal Processing Vol. 2009 ( 2009), p. 1-2
    Details
    In: Research Letters in Signal Processing, Hindawi Limited, Vol. 2009 ( 2009), p. 1-2
    Abstract: This correspondence presents a linear transformation, which is used to estimate correlation coefficient of first-order Markov process. It outperforms zero-forcing (ZF), minimum mean-squared error (MMSE), and whitened least-squares (WTLSs) estimators by controlling output noise variance at the cost of increased computational complexity.
    Type of Medium: Online Resource
    ISSN: 1687-6911 , 1687-692X
    URL: Article
    DOI: 10.1155/2009/186250
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2009
    detail.hit.zdb_id: 2582829-0
    detail.hit.zdb_id: 2401285-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...