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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

Effect of Saline Water on Soil Acidity, Alkalinity and Nutrients Leaching in Sandy Loamy Soil in Rwamagana Bella Flower Farm, Rwanda

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Agricultural Sciences 2024年第1期15卷 15-35页

作者： Abel Mwubahaman Wali Umaru Garba Hussein Bizimana Jean de Dieu Bazimenyera Eric derrick Bugenimana Jean Nepomuscene Nsengiyumva Department of Irrigation and Drainage School of Agriculture Engineering College of Agriculture Animal Science and Veterinary Medicine University of Rwanda Nyagatare Campus Kigali Rwanda Department of Agricultural Engineering Rwanda Polytechnic—IPRC Gishari Kigali Rwanda

The necessity to saline and sodic waters is sometimes used for irrigating agricultural activities under certain circumstances, but it is important to note that the use of these waters comes with specific considerations and limitations. One way to decrease undesirable effects of sodic waters on the physical and chemical properties of soils is to apply organic and chemical amendments within the soil. This study aimed to assess the effectiveness of saline water on soil acidity, alkalinity and nutrients leaching in sandy loamy soil at Bella flower farm, in Rwamagana District, Rwanda. The water used was from the Muhazi Lake which is classified as Class I (Saline water quality). Column leaching experiments using treated soils were then conducted under saturated conditions. The soil under experimental was first analyzed for its textural classification, soil properties and is classified as sandy loamy soil. The t-test was taken at 1%, 5% and 10% levels of statistical significance compared to control soil. The results indicated that the application of saline water to soils caused an increase in some soil nutrients like increase of Phosphorus (P), Potassium (K+), Magnesium (Mg2+), Sulphur (S), CN ratio and Sodium (Na+) and decreased soil texture, physical and chemical properties and remained soil nutrients. Consequently, the intensive addition of saline water leachates to soil in PVC pipes led to decreased of soil EC through leaching and a raiser Soluble Sodium Percentage (SSP). The rate of saline water application affected the increase accumulation of SAR and Na% in the top soil layers. The study indicated that saline water is an inefficient amendment for sandy soil with saline water irrigation. The study recommends further studies with similar topic with saline water irrigation, as it accentuated the alkalinity levels.

关键词： Nutrients Leaching Saline Water Soil Acidity Soil Alkalinity

Understanding wound healing in obesity

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World Journal of Experimental Medicine 2024年第1期14卷 22-32页

作者： Asha Cotterell Michelle Griffin Mauricio A Downer Jennifer B Parker derrick Wan Michael T Longaker Division of Plastic and Reconstructive Surgery Stanford UniversityPalo AltoCA 94301United States Stanford University School of Medicine Stanford University School of MedicinePalo AltoCA 94301United States Department of Surgery Stanford University School of MedicineHagey Laboratory for Pediatric Regenerative MedicinePalo AltoCA 94301United States

Obesity has become more prevalent in the global *** is associated with the development of several diseases including diabetes mellitus,coronary heart disease,and metabolic *** are a multitude of factors impacted by obesity that may contribute to poor wound healing *** millions worldwide classified as obese,it is imperative to understand wound healing in these *** advances in the understanding of wound healing in both healthy and diabetic populations,much is unknown about wound healing in obese *** review examines the impact of obesity on wound healing and several animal models that may be used to broaden our understanding in this *** a growing portion of the population identifies as obese,understanding the underlying mechanisms and how to overcome poor wound healing is of the utmost importance.

关键词： Obesity Wound healing Adipokines Tissue fibrosis Diabetes Preclinical animal models Hypertrophic skin scarring Wound tension Metabolic syndrome

Acceptability of Immunization against COVID-19 by the Populations of the Kasenga State Health Area in the Uvira Health Zone, DR Congo

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Journal of Immune Based Therapies, Vaccines and Antimicrobials 2024年第3期13卷 33-46页

作者： derrick Bushobole Akiba Eric Amuri Madabali Robert Bushambale Fataki Abel Asende Luhendama Jacques Mutono Matongo Faustin Bukuru Mudage Christian Banyakwa Mitunda Saili Stay Mushobekwa Michel Byaombe Wa Ngene Martin Longolongo Kiza Paulin Mulogoto Rushanika Emmanuel Nirambo Rujanjika Henry Manya Mboni Criss Koba Mjumbe Department of Public Health Higher Institute of Medical Techniques of Uvira (ISTM-Uvira) South Kivu DR Congo Department of Laboratory Techniques Higher Institute of Medical Techniques of Uvira (ISTM-Uvira) South Kivu DR Congo Nursing Science Sector Higher Institute of Medical Techniques of Uvira (ISTM-Uvira) South Kivu DR Congo Department of Public Health University of Lubumbashi Lubumbashi DR Congo Department of Pharmaceutical Techniques University of Lubumbashi DR Congo Department of Pharmaceutical Techniques Higher Institute of Medical Techniques of Uvira (ISTM-Uvira) South Kivu DR Congo

Introduction: COVID-19 was an emerging disease putting all public health systems in countries around the world in a state of emergency. To be able to prevent its spread and morbidity and mortality, several appropriate strategies were necessary, such as vaccination. The latter has been the subject of controversy. The objective of the present study is therefore to evaluate the factors associated with the acceptance of this vaccine within the population of the Kasenga State Health Area. A result which will shed light on future strategies to be put in place for possible new vaccines. Methodology: Is a prospective and analytical cross-sectional study conducted over a period of approximately 1 month from January 5 to February 5, 2024. A survey questionnaire in Kobotoolbox was useful for collecting data. STATA software was very important for us in analyzing the data collected. Results: Prevalence of vaccination against COVID-19 among the population of the Kasenga State Health Area is 37.5% (28.4 - 45.6). The study revealed that reluctance is observed among most of the population for different reasons, including, first and foremost, the deliberate aspect of not wanting to take the vaccine (46.6%) and rumors that this antigen is dangerous and harmful (32.9%). 72.5% of respondents believe that the COVID-19 vaccine is a fabrication, unhealthy and that the disease itself never existed. The study proved that there was a statistical relationship between age (p = 0.001) and adherence to vaccination. And the refusal of respondents to recommend the vaccine to loved ones was a factor associated with non-adherence to vaccination (OR = 7.901, 95% IC [3.028 - 20.615], p = 0.000). Conclusion: Vaccination against COVID-19 was not well accepted by the population of the study site. Raising public awareness and involving community leaders and political-administrative authorities, which has not been done well, would play an important role in the good perception of the disease, of the vaccine

关键词： COVID-19 Vaccination Kasenga State Health Area Associated Factors Uvira Health Zone City of Uvira

Impaired Pulmonary Function as a Potential Contributor to Reduced Exercise Capacity Associated with MAFLD

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Journal of Clinical and Translational Hepatology 2022年第2期10卷 181-183页

作者： derrick Michael Van Rooyen Oyekoya Taiwo Ayonrinde Department of Gastroenterology and Hepatology Fiona Stanley HospitalMurdochWAAustralia Medical School The University of Western AustraliaNedlandsAustralia Faculty of Health Sciences Curtin UniversityBentleyAustralia

For over a century,fatty liver has been associated with inadequate physical activity.1 A sedentary lifestyle has long been considered a major contributor to obesity and fatty *** with fatty liver are consequently often deemed to be unwilling or unable to increase their physical activity as a therapeutic lifestyle *** is ongoing toward identifying obstacles to physical exercise in people with fatty liver,exposing intrinsic and extrinsic factors that may sometimes be bidirectional.

关键词： obesity identifying willing

Deep CLSTM for Predictive Beamforming in Integrated Sensing and Communication-Enabled Vehicular Networks

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Journal of Communications and Information Networks 2022年第3期7卷 269-277页

作者： Chang Liu Xuemeng Liu Shuangyang Li Weijie Yuan derrick Wing Kwan Ng School of Electrical Engineering and Telecommunications the University of New South WalesSydneyNSW 2052Australia School of Electrical and Information Engineering the University of SydneySydneyNSW 2006Australia Department of Electrical Electronic and Computer Engineeringthe University of Western AustraliaPerth WA 6009Australia Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China

Predictive beamforming design is an essential task in realizing high-mobility integrated sensing and communication(ISAC),which highly depends on the accuracy of the channel prediction(CP),i.e.,predicting the angular parameters of ***,the performance of CP highly depends on the estimated historical channel stated information(CSI)with estimation errors,resulting in the performance degradation for most traditional CP *** further improve the prediction accuracy,in this paper,we focus on the ISAC in vehicle networks and propose a convolutional long-short term memory(CLSTM)recurrent neural network(CLRNet)to predict the angle of vehicles for the design of predictive *** the developed CLRNet,both the convolutional neural network(CNN)module and the LSTM module are adopted to exploit the spatial features and the temporal dependency from the estimated historical angles of vehicles to facilitate the angle ***,numerical results demonstrate that the developed CLRNet-based method is robust to the estimation error and can significantly outperform the state-of-the-art benchmarks,achieving an excellent sum-rate performance for ISAC systems.

关键词： integrated sensing and communication predictive beamforming deep learning convolutional longshort term neural network vehicular networks

Evaluation of thermal comfort and air quality of low-income housing in Kampala City,Uganda

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Energy and Built Environment 2022年第4期3卷 508-524页

作者： derrick Kajjoba Hillary Kasedde Peter W.Olupot Joseph D.Lwanyaga Department of Mechanical Engineering College of EngineeringDesignArt and TechnologyMakerere UniversityP.O Box 7062KampalaUganda Department of Mining and Water Resources Engineering Faculty of EngineeringBusitema UniversityP.O.Box236TororoUganda

This paper presents the results of thermal comfort and air quality studies in naturally ventilated residential buildings in Kampala City,*** surveys were used for obtaining occupant subjective thermal sensation *** and outdoor measurements for air temperature(T_(a)),Mean Radiant Temperature(MRT),relative humidity,air speed,and air quality were done for seven buildings over fifteen days during the month of June *** software was used to develop the reference building model and to simulate strategies for improvement of thermal *** results showed that 67.8%of the respondents were comfortable with the indoor thermal *** indoor air temperature range was 22.7℃-27.9℃ which lies within the 80%acceptable limits set by ASHRAE *** measured indoor MRT range was 24.24℃-25.57℃.Measured levels of indoor PM_(2.5)were double the World Health Organization recommended limits,while the levels of PM 10 were thrice the recommended limits of ASHRAE *** CO_(2)concentrations were within the limits set by ASHRAE *** developed model predicted comfortable indoor conditions with a temperature range of 23.6℃-25.3℃ based on the 80%acceptable limits set by ASHRAE *** results show that majority of occupants preferred cooler temperatures during the day which is justified by the use of adaptive measures to obtain thermal comfort.

关键词： Thermal comfort Air quality Natural ventilation Low-income housing Uganda

Performance analysis of reconfigurable intelligent surface assisted systems under channel aging

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Intelligent and Converged Networks 2022年第1期3卷 74-85页

作者： Yan Zhang Jiayi Zhang derrick Wing Kwan Ng Huahua Xiao Bo Ai School of Electronic and Information Engineering Beijing Jiaotong UniversityBeijing 100044China School of Electrical Engineering and Telecommunications University of New South WalesSydney 2052Australia. ZTE Corporation and State Key Laboratory of Mobile Network and Mobile Multimedia TechnologyShenzhen 518057China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong UniversityBeijing 100044China

Reconfigurable intelligent surfaces(RISs)have attracted significant attention due to their capability in customizing wireless communication environments to improve system *** this study,we investigate the performance of an RIS-assisted multi-user multiple-input single-output wireless communication system,considering the impact of channel aging caused by users’relative *** particular,first,we propose a model incorporating the joint effects of channel aging and channel estimation errors to investigate the performance of the RIS-assisted ***,we derive novel closed-form expressions for characterizing the sum spectral efficiency with zero-forcing *** our analysis,we unveil that an increase in the temporal channel correlation coefficient,the number of base station antennas,and the received power at the users could help improve system ***,increasing the number of reflecting elements M of the RIS generally yields a good system performance,but with a diminishing return when M is sufficiently ***,simulation results are presented to validate the accuracy of the analytical results.

关键词： reconfigurable intelligent surface(RIS) channel aging spectral efficiency

Wonders of A Versatile Plant

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ChinAfrica 2022年第10期14卷 42-43页

作者： derrick SILIMINA 不详

Bamboo is gradually becoming a new economic force in generating income, creating jobs and protecting the environment in Uganda Bamboo, the giant grass, is a plant with the fastest growth, and due to its high productivity rate, is a valuable source for a large number of durable products and sustainable yearlong income. The International Bamboo and Rattan Organization, an intergovernmental organization registered with the United Nations that promotes the growing of bamboo.

关键词： Bamboo income generating

Expanding Access To Quality Education

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ChinAfrica 2022年第2期14卷 38-39页

作者： derrick SILIMINA

Botswana students excel at schools built with China’s grants While the coronavirus pandemic has disrupted education across the world,the impact of school closures has been much worse in developing countries where mos... 详细信息

关键词： Access excel Expanding