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How Marie Sklodowska-Curie Doctoral Networks Can Support European Refractory Ecosystem in Context of The European Green Deal

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China's Refractories 2024年第2期33卷 1-9页

作者： Marc HUGER Glyn DERRICK Mossaab MOUIYA Andrea SALERNO kwasi Addo BOATENG Hrikeshava RANGANATHAN Amit Kumar GOPE Institute of Research for Ceramics(IRCER-UMR CNRS 7315) University of LimogesLimoges 87000France

The movement of the Iron&Steelmaking(I&S)industry towards Net-Zero emissions and digitalized processes through disruptive,breakthrough technologies will be achieved through the use of *** biggest challenge for the refractory industry is to continue to meet the performance expectations while,at the same time,moving to a more sustainable production *** complexity and urgency of these technological changes,highlighted by the European Green Deal,requires ambitious,international,interdisciplinary and intersectoral projects,bringing together institutes from across the global value chain,to carry out cutting edge *** European Union,through its flagship doctoral training program,MSCA,has,and continues to support research and development as well as the promotion of the refractory industry in *** introduction to two MSCA projects and some of the results achieved are highlighted within this article.

关键词： FIRE network Horizon 2020 Horizon Europe Marie Sklodowska-Curie Actions Doctoral networks European Green Deal

Prevalence of Taurodontism in a Tertiary Hospital in Ghana

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Open Journal of Stomatology 2024年第5期14卷 206-217页

作者： Philip Boadi Frimpong Adelaide Appau Edward Ohene-Marfo Yaw Aboagye adu-Darko Nii Otu Nartey Department of Basic and Diagnostic Oral Health Kwame Nkrumah University of Science and Technology Kumasi Ghana Department of Oral Pathology University of Ghana Dental School Accra Ghana Department of Community Dentistry University of Ghana Dental School Accra Ghana

Background: Taurodontism is one of the most significant deviations from the normal tooth morphology affecting the molars in both primary and permanent dentition. Taurodontism refers to the Enlargement of the pulp chamber, resulting in its bifurcation pushed toward the apex of a tooth’s root. This study evaluated the prevalence of Taurodontism from radiographs taken at the University of Ghana Dental School Oral Radiology Unit from January 2017 to December 2022. Methodology: In this cross-sectional study, panoramic and periapical radiographs of 1000 randomly selected patients who visited the Oral Radiology Unit from January 2017 to December 2022. Radiographs were evaluated for apically displaced pulp chamber. Data was statistically evaluated, and the chi-square test was employed to assess the prevalence of taurodontism in the upper and lower jaws (p Results: Taurodontism was found in 171 radiographs giving it a prevalence of 17.1% of which 57% (98 radiographs) were from females and 43% (73 radiographs) were from males. This finding was not significant (p > 0.05). Taurodontism occurred more in the maxilla (289 teeth, 80.7%) compared to the mandible molars (186 teeth, 64.3%) giving it a ratio of 1.6:1. This finding was highly significant (p Conclusion: Taurodontism is relatively common in the Ghanaian population affecting more females compared to males according to this study. Further studies using a large sample need to be carried out to determine its incidence in the general community.

关键词： Taurodontism Prevalence Maxilla Mandible Molar Teeth

Effect of Variety and Plant Spacing on Growth and Yield of Groundnuts (Arachis hypogaea L.)

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Agricultural Sciences 2024年第1期15卷 54-70页

作者： Abukari Iddrisu Eric Adjei Samuel Kwesi Asomaning Kwadwo Gyasi Santo adu Poku Isaac Alexander Danson-Anokye Cocoa Health and Extension Division Huni Valley Ghana Department of Agriculture Berekum East Municipal Assembly Berekum Ghana Department of Horticulture and Crop Production School of Agriculture and Technology University of Energy and Natural Resources Sunyani Ghana Glenn High School Winston Salem USA

A field experiment was carried out to determine the effect of variety and plant spacing on yield and growth of groundnuts. The field experiment was laid in a 3 × 3 factorial experiment in a Randomized Complete Block Design (RCBD) with three (3) replications. The factor A included three (3) groundnut varieties (Nkatie Sari, Sum Nutt 22 and Yenyawoso) and Factor B was the three (3) spacing of 30 cm × 15 cm, 30 cm × 30 cm and 30 cm × 40 cm. All recommended agronomic practices were followed. Data was collected from eight (8) tagged plants. Growth data were recorded on plant height, number of branches, number of leaves, and the number of flowers while yield data were collected on the number of flowers, number of pods per plant, 100 seeds weight and the pod yield (kg/ha). The plant spacing significantly influenced (P < 0.05) the growth and yield parameters. Groundnut grown at a spacing of 30 cm × 15 cm produced the maximum plant height, whereas the maximum number of leaves, number of branches and number of flowers were produced from 30 cm × 40 cm. Yenyawoso variety with a wider plant spacing performed better vegetatively among all the varieties. The Yenyawoso variety produced the highest number of pods, 100 seeds weight and pod yield as compared to the other varieties. Also, Yenyawoso at 30 cm × 40 cm spacing and Nkatie Sari at 30 cm × 15 cm spacing produced the maximum pod yield.

关键词： Groundnut Variety Yield Spacing Plant Height

以1-丁基-3-甲基咪唑氯盐为溶剂制备生物降解可控的再生纤维素/支链淀粉共混纤维(英文)

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Journal of Donghua University(English Edition) 2024年

作者： KUMIAlex kwasi 范瑞玲张玥陈烨张玉梅东华大学材料科学与工程学院纤维材料改性国家重点实验室

以纤维素/支链淀粉/1-丁基-3-甲基咪唑氯盐离子液体为原料，采用干喷湿纺技术制备了生物降解可控的再生纤维素/支链淀粉共混纤维。形态、结构和化学分析结果表明，经两阶段溶解过程，成功制得致密、均匀、无孔洞的共混纤维。该共混纤维... 详细信息

以纤维素/支链淀粉/1-丁基-3-甲基咪唑氯盐离子液体为原料，采用干喷湿纺技术制备了生物降解可控的再生纤维素/支链淀粉共混纤维。形态、结构和化学分析结果表明，经两阶段溶解过程，成功制得致密、均匀、无孔洞的共混纤维。该共混纤维能通过水或95%（体积分数）乙醇处理实现再生。然而，共混纤维中存在由于纤维素与支链淀粉相互作用引起的结晶重排现象，导致结晶度普遍降低。当共混纤维中支链淀粉的质量分数为10%时，共混纤维拉伸强度高于纯纤维素纤维，而后随着支链淀粉质量分数增加，共混纤维拉伸强度下降。乙醇处理可减少共混纤维的亲水性，并提高共混纤维的结晶度。此外，共混纤维的降解速率与其所含支链淀粉质量分数成正比关系。尽管具有较高结晶度，但经乙醇处理的共混纤维比经水处理的具有更快的降解速率。这说明了支链淀粉和乙醇在调节降解过程中发挥了作用。

关键词：纤维素/支链淀粉共混纤维纤维素支链淀粉 1-丁基-3-甲基咪唑氯盐乙醇

Understanding the relationship between High Reliability Theory (HRT) ofmindful organizing and Safety Management Systems (SMS) within theaerospace industry: A cross-sectional quantitative assessment

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Journal of Safety Science and Resilience 2022年第2期3卷 105-114页

作者： Brian Eugene Teske Daniel kwasi Adjekum Department of Space Studies John D.Odegard School of Aerospace SciencesUniversity of North Dakota4149 University AvenueStop 9008Grand ForksND 58202-9008USA Department of Aviation John D.Odegard School of Aerospace SciencesUniversity of North Dakota.4149 University AvenueStop 9036Grand ForksND 58202-9008USA

There seems to be a paucity in extant literature that assesses the relationship between Safety Management Systems (SMS) and High Reliability Theory (HRT) behavior process of mindful organizing (MO) among aerospaceorganizations. There could be benefits for organizational safety by exploring this relationship in high-reliabilityorganizations (HROs) like the aerospace industry. Using a modified Safety Organizing Scale (SOS) by Vogus andSutcliffe (2007) and a validated SMS scale, the relationship between SMS and MO was measured. The perceptionsof a cross-section of respondents from commercial airlines with SMS and commercial space licensees without SMSin the United States (U.S.) was assessed. A four-factor model of MO had acceptable fit. A model showing the relationship between SMS and MO had good fit and showed a high significant strength of relationship (r = 0.82,p = 0.000) with a big effect size. There were also significant differences in mean responses among managementpersonnel and non-management personnel on the MO factor “sensitivity to operations” and the result suggestsmanagers were better at identifying personnel with skills and knowledge to ensure safer task accomplishmentthan non-management personnel. The study results suggest that the SMS requirements for commercial airlines inthe U.S. can enrich the identification and understanding of MO factors and it may be beneficial for the commercial space industry to formally adopt SMS. Future research studies may include direct comparisons in multipleaerospace organizations using a larger sample size to determine the overall understanding of MO factors and howit affects SMS.

关键词： Mindful organizing Safety Management Systems High-reliability organization Aerospace Commercial airlines Commercial space licensees Organization safety

Relationship Between Heavy Metal Concentrations in Bottom Sediments and the Clam, Galatea Paradoxa (Born 1778) from the Volta Estuary, Ghana

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Journal of Environmental Protection 2011年第6期2卷 720-728页

作者： Hashem A Madkour kwasi A obirikorang Steve Amisah Fred A Otchere Daniel Adjei-Boateng 不详

This research was carried out at two locations, Ada and Aveglo at the Volta Estuary, Ghana to evaluate the importance of sediments as regulatory media in controlling the levels of four metals, Manganese (Mn), Zinc (Zn), Iron (Fe) and Mercury (Hg) in the tissues of the clam, Galatea paradoxa (Born 1778) and to investigate the possible relationships between the concentrations of the metals in the sediments and the clams. The clams were categorized into three size classes as follows: small (25 - 40 mm), medium (41 - 55 mm), and large (above 55 mm). To understand the possible relationships between the concentrations of the studied metals in the sediments and in the tissues of the three clam size classes, the monthly concentrations of the studied metals were graphed and subjected to Pearson correlation analyses (p < 0.05) to identify metal accumulation patterns and determine whether or not positive relationship patterns existed between the concentrations in the clams and sediment samples. The correlation revealed no simple linear relationships between the concentrations of four heavy metals in the clam tissues and the sediments at the two sampling stations although some distinct trends were observed. Mn concentrations in the clams and sediments from the two stations showed some clear positive relationship patterns with some increments in monthly sediment concentrations resulting in increments in clam tissue concentrations. This relationship though, was not too clear-cut.

关键词： Heavy Metal Galatea paradoxa Sediments Volta Estuary

基于熵权TOPSIS模型的古建筑地震灾害风险评估

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自然灾害学报 2024年第4期33卷 1-10页

作者：巴婉茹宫阿都张树宇王海涵付泽昕北京师范大学地理科学学部北京100875 煤炭科学技术研究院有限公司北京100875

为评估地震灾害对古建筑的危害并提供抗震性能改进的方法,以四川省的国家级文物保护单位的古建筑为研究对象,构建了一个多维度的地震灾害风险评估框架,包括地震强度、地质条件和建筑物属性三个关键方面。采用熵值法赋予指标权重,并建立... 详细信息

为评估地震灾害对古建筑的危害并提供抗震性能改进的方法,以四川省的国家级文物保护单位的古建筑为研究对象,构建了一个多维度的地震灾害风险评估框架,包括地震强度、地质条件和建筑物属性三个关键方面。采用熵值法赋予指标权重,并建立了优劣解距离法(technique for order preference by similarity to ideal solution,TOPSIS)模型,计算了四川省域内国家级文物保护单位的古建筑的地震风险等级。此外,通过对2012年以来四川省的1000多次地震事件建立深度学习模型(long short-term memory,LSTM),模拟出未来100次地震的震级变化趋势。最后比较3种提升古建筑的抗震性能方法的优劣,包括结构加固、加强管理以及迁移地震易发区的古建筑等。研究结果表明,四川省的古建筑地震风险等级表现出西部高风险向东部低风险递减的区域差异,多集中于较低、中等、较高3个等级。LSTM模型模拟出未来100次地震震级最大为4.21级,迁移大中型滑坡、地震频繁发生场址范围内的古建筑是降低古建筑地震风险的最优方案。

关键词：古建筑风险评估地震灾害优劣解距离法模型

Effects of selective logging on tree diversity and some soil characteristics in a tropical forest in southwest Ghana

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Journal of Forestry Research 2014年第1期25卷 171-176页

作者： Alex Asase Bismark K.Asiatokor kwasi Ofori-Frimpong Department of Botany University of Ghana Environmental Science Programme University of Ghana Cocoa Research Institute of Ghana (CRIG)

We investigated the effects of selective logging disturbances on tree diversity and soil characteristics in the Bia Conservation Area in southwest Ghana. The study was conducted in unlogged, 29-35 years post-logged and swamp forests using ten 25 m× 25 m plots. In total, we identified 310 individual trees belonging to 87 species. Mean Shannon-Weiner index was highest in the post-logged forest but there were no significant differences in tree density, dominance, or DBH size class distributions between these forests. Soil physical properties such as pH and bulk density up to 30 cm depth were similar in the two of forests In terms of soil nutrient status, available P, exchangeable K and total N contents were all similar in the unlogged and post-logged forests. Our findings suggest that the effects of logging on tree diversity are compara-tively long-term, in contrast to its short-term effects on some top soil physical and chemical characteristics.

关键词： tropical forest deforestation plant diversity soil propertiesGhana

Chrysobalanus icaco:A review of its phytochemistry and pharmacology

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Journal of Integrative Medicine 2021年第1期19卷 13-19页

作者： Hammed Ayantola Onilude Mutiu Idowu Kazeem Oluwatosin Benedict adu Department of Biochemistry Faculty of ScienceLagos State UniversityOjoLagos 102101Nigeria

The genus Chrysobalanus is one of the classes of medicinal plants used in the treatment and management of several *** study is aimed at providing up-to-date information on the phytochemical composition and pharmacological uses of Chrysobalanus *** literature on the Chrysobalanus species was obtained by searching electronic databases such as Pub Med,Google Scholar and Web of *** the species in this genus,four have been reported in the literature,but only one(***)has been extensively *** is rich in several minerals,including potassium,magnesium,calcium and *** plant also contains a host of phytochemicals,such as flavonoids,diterpenes and triterpenes,which have been shown to have pharmacological *** can be concluded that *** is a good source of phytochemicals that contribute to its therapeutic ***,bioassay-guided isolation of its bioactive compounds is necessary for promoting the development of drugs from this medicinal plant.

关键词： Chrysobalanaceae Cocoplum Diabetes mellitus Triterpenes Fruit