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Realization and Experimental Study of a Hybrid Cooker (Solar-Biomass) in a Sahelian Climate 萨赫勒气候下太阳能-生物质混合炉的实现与实验研究
Pub Date : 2023-10-05 DOI: 10.21013/jas.v18.n3.p1
Iliyassé Konkobo, Jacques Nébié, Yomi Woro Gounkaou, Bagré Boubou, Armand Korsaga, Boumbouté Somé, Sidiki Zongo, Christian Tubreoumya Guy, Tizane Daho, Antoine Béré
Solar cookers are devices that allow cooking by using free solar energy. However, they can’t operate during cloudy periods or at night. A hybrid cooker (solar-biomass) is an alternative that uses an endogenous and renewable energy source for ecological and economical cooking. In this work, the performances of a hybrid cooker (solar-biomass) are evaluated. The experimental results obtained indicate that the absorber plate reached a maximum temperature of 121.60 °C. Moreover, the maximum power of the cooker was 78.47 W with an efficiency of 29% in solar mode and 28.4% in biomass mode. The first and second figures of merit parameters performed are 0.1043 and 0.2732 respectively. The results obtained are conclusive in both solar and biomass mode.
太阳能炊具是一种利用免费太阳能进行烹饪的设备。然而,它们不能在阴天或夜间运行。混合炊具(太阳能-生物质)是一种替代方案,它使用内生的可再生能源进行生态和经济的烹饪。在这项工作中,评估了混合炉灶(太阳能-生物质)的性能。实验结果表明,吸收板最高温度可达121.60℃。最大功率为78.47 W,太阳能模式效率为29%,生物质模式效率为28.4%。性能参数执行的第一、二值分别为0.1043和0.2732。所得结果在太阳能和生物质模式下都是结论性的。
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引用次数: 0
Automatic MRI Brain Tumor Segmentation Techniques: A Survey 自动MRI脑肿瘤分割技术综述
Pub Date : 2021-04-20 DOI: 10.21013/JAS.V16.N2.P2
O. Basir, Kalifa Shantta
IRA Academico Research is an institutional publisher member of Publishers International Linking Association Inc. (PILA-CrossRef), USA. IRA Academico Research is an institutional signatory to the Budapest Open Access Initiative, Hungary advocating the open-access of scientific and scholarly knowledge. IRA Academico Research is a registered content provider under Open Access Initiative Protocol for Metadata Harvesting (OAI-PMH).
IRA Academico Research是美国出版商国际链接协会(PILA-CrossRef)的机构出版商成员。IRA学术研究是匈牙利布达佩斯开放获取倡议(Budapest Open Access Initiative)的签约机构,该倡议倡导科学和学术知识的开放获取。IRA Academico Research是元数据采集开放获取倡议协议(OAI-PMH)下的注册内容提供商。
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引用次数: 3
Simulation of the Injection of 25 MW Photovoltaic Energy Production: Analysis of the Impacts on the Grid of the Société Béninoise d'Energie Electrique (SBEE) 25mw光伏发电的注入模拟:SBEE对电网的影响分析
Pub Date : 2021-04-20 DOI: 10.21013/JAS.V16.N2.P1
Fannou Jean-Louis Comlan, S. Clarence, Dangnon Emmanuel, K AdjallaDieudonné, Gegan Gérard
FANNOU Jean-Louis Comlan1, 2#, SEMASSOU Guy Clarence2, DANGNON Emmanuel2, ADJALLA Dieudonné K3, GEGAN Gérard1 1Laboratory of Applied Energy and Mechanics (LEMA), Polytechnic School of Abomey-Calavi, 01 BP 2009 Cotonou, Benin. 2National Higher School of Energy and Processes Engineering (ENSGEP)/UNSTIM BP 2282 GOHO Abomey, Benin. 3 Société Béninoise d'Energie Electrique (SBEE), Department of Development of Renewable Energies (SDER / SBEE), 92, Av. Jean Paul II 01 BP 123.
FANNOU Jean- louis Comlan1, 2#, SEMASSOU Guy Clarence2, DANGNON Emmanuel2, ADJALLA dieudonn K3, GEGAN gsamrard 1 1能源与力学应用实验室(LEMA), Abomey- calavi理工学院,1bp 2009 Cotonou . 2国家能源与过程工程高等学校(ENSGEP)/UNSTIM BP 2282 GOHO Abomey . 3社会 - - - - - - -能源电力(SBEE),可再生能源发展部门(SDER / SBEE), 92, Av. Jean Paul II 01 BP 123。
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引用次数: 1
Deep Learning Feature Extraction for Brain Tumor Characterization and Detection 基于深度学习的脑肿瘤特征提取与检测
Pub Date : 2021-03-20 DOI: 10.21013/JAS.V16.N1.P1
O. Basir, Kalifa Shantta
IRA Academico Research is an institutional publisher member of Publishers International Linking Association Inc. (PILA-CrossRef), USA. IRA Academico Research is an institutional signatory to the Budapest Open Access Initiative, Hungary advocating the open-access of scientific and scholarly knowledge. IRA Academico Research is a registered content provider under Open Access Initiative Protocol for Metadata Harvesting (OAI-PMH).
IRA Academico Research是美国出版商国际链接协会(PILA-CrossRef)的机构出版商成员。IRA学术研究是匈牙利布达佩斯开放获取倡议(Budapest Open Access Initiative)的签约机构,该倡议倡导科学和学术知识的开放获取。IRA Academico Research是元数据采集开放获取倡议协议(OAI-PMH)下的注册内容提供商。
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引用次数: 2
Optimal Algorithm Selection in Multimodal Medical Image Registration 多模态医学图像配准的最优算法选择
Pub Date : 2021-01-28 DOI: 10.21013/JAS.V15.N4.P1
Husein Elkeshreu, O. Basir
Many medical applications benefit from the diversity inherent in imaging technologies to obtain more reliable diagnoses and assessments. Typically, the images obtained from multiple sources are acquired at distinct times and from different viewpoints, rendering a multitude of challenges for the registration process. Furthermore, different areas of the human body require disparate registration functional capabilities and degrees of accuracy. Thus, the benefit attained from the image multiplicity hinges heavily on the imaging modalities employed as well as the accuracy of the alignment process.  It is no surprise then that a wide range of registration techniques has emerged in the last two decades. Nevertheless, it is widely acknowledged that despite the many attempts, no registration technique has been able to deliver the required accuracy consistently under diverse operating conditions.  This paper introduces a novel method for achieving multimodal medical image registration based on exploiting the complementary and competitive nature of the algorithmic approaches behind a wide range of registration techniques. First, a thorough investigation of a wide range of registration algorithms is conducted for the purpose of understanding and quantifying their registration capabilities as well as the influence of their control parameters. Subsequently, a supervised randomized machine learning strategy is proposed for selecting the best registration algorithm for a given registration instance, and for determining the optimal control parameters for such algorithm. Several experiments have been conducted to verify the capabilities of the proposed selection strategy with respect to registration reliability, accuracy, and robustness.
许多医疗应用受益于成像技术固有的多样性,以获得更可靠的诊断和评估。通常,从多个来源获得的图像是在不同的时间和不同的视点获得的,这给配准过程带来了许多挑战。此外,人体的不同区域需要不同的注册功能和准确度。因此,从图像多样性中获得的好处在很大程度上取决于所采用的成像方式以及对准过程的准确性。因此,在过去的二十年中出现了各种各样的注册技术也就不足为奇了。然而,人们普遍认为,尽管进行了许多尝试,但没有一种注册技术能够在不同的操作条件下始终如一地提供所需的准确性。本文介绍了一种实现多模态医学图像配准的新方法,该方法基于利用各种配准技术背后的算法方法的互补性和竞争性。首先,为了理解和量化它们的配准能力以及它们的控制参数的影响,对各种配准算法进行了深入的研究。随后,提出了一种监督随机化机器学习策略,用于在给定配准实例下选择最佳配准算法,并确定该算法的最优控制参数。已经进行了几个实验来验证所提出的选择策略在配准可靠性,准确性和鲁棒性方面的能力。
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引用次数: 0
Prevalence of Nutrition- Impact Symptoms at Different Disease Stages among Paediatric Cancer Patients Undergoing Chemotherapy at Moi Teaching and Referral Hospital, Eldoret, Kenya 肯尼亚埃尔多雷特Moi教学和转诊医院接受化疗的儿科癌症患者在不同疾病阶段营养影响症状的流行程度
Pub Date : 2020-11-24 DOI: 10.21013/jas.v15.n3.p2
Okemwa Julian Nyaboke
Malnutrition incidence among patients with cancer ranges from 30% - 80% globally.  Cancer is a major cause of death in Kenya after cardiovascular and infectious diseases. This research assessed the relationship between nutritional status and quality of life (QoL) of the 52 paediatric cancer patients undergoing chemotherapy at Moi Teaching and Referral Hospital (MTRH) Eldoret, Kenya. A cross-sectional analytical design was applied and the researcher administered a questionnaire and Nutritional Risk Screening (NRS-2002) instruments were used for data collection. The statistical package for social sciences (SPSS) version 21 was used to analyse the data descriptively. The findings revealed that nutrition impact symptoms were more pronounced in the second and third stages of cancer where most of the respondents experienced vomiting (94.3%),  decreased appetite (80.8%), and diarrhoea (69.23%). The use of the Nutrition Impact Symptom (NIS) checklist in the paediatric oncology clinic/ward triggers more therapeutic interventions. The awareness for NIS will likely evoke more research in assessment, impact, and treatment.
全球癌症患者营养不良发生率在30% - 80%之间。在肯尼亚,癌症是继心血管疾病和传染病之后的主要死亡原因。本研究评估了在肯尼亚埃尔多雷特Moi教学和转诊医院(MTRH)接受化疗的52名儿科癌症患者的营养状况与生活质量(QoL)之间的关系。采用横断面分析设计,研究人员进行问卷调查,并使用营养风险筛查(NRS-2002)工具收集数据。使用社会科学统计软件包(SPSS)第21版对数据进行描述性分析。研究结果显示,营养影响症状在癌症的第二和第三阶段更为明显,大多数受访者出现呕吐(94.3%)、食欲下降(80.8%)和腹泻(69.23%)。在儿科肿瘤科门诊/病房使用营养影响症状(NIS)检查表可触发更多的治疗干预措施。对NIS的认识可能会在评估、影响和治疗方面引发更多的研究。
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引用次数: 0
Exponential Synchronization of Inertial Cohen–Grossberg Neural Networks with Time-Varying Delays via Periodically Intermittent Control 基于周期性间歇控制的时变时滞惯性Cohen-Grossberg神经网络指数同步
Pub Date : 2020-10-28 DOI: 10.21013/jas.v15.n2.p1
Qing Ding, Yinfang Song
corresponding author. Type of Review: Peer Reviewed. DOI: http://dx.doi.org/10.21013/jas.v15.n2.p1 How to cite this paper: Ding, Q., Song, Y. (2020). Exponential Synchronization of Inertial Cohen–Grossberg Neural Networks with Time-Varying Delays via Periodically Intermittent Control. IRA International Journal of Applied Sciences (ISSN 2455-4499), 15(2), 15-29. doi:http://dx.doi.org/10.21013/jas.v15.n2.p1
相应的作者。评审类型:同行评审。DOI: http://dx.doi.org/10.21013/jas.v15.n2.p1本文引用方式:Ding, Q., Song, Y.(2020)。基于周期性间歇控制的时变时滞惯性Cohen-Grossberg神经网络指数同步。国际应用科学学报(ISSN 2455-4499), 15(2), 15-29。doi: http://dx.doi.org/10.21013/jas.v15.n2.p1
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引用次数: 0
Determination and Evaluation of the Cooling Load of a Building Made by Different Local Material of Construction 当地不同建筑材料建筑冷负荷的确定与评价
Pub Date : 2020-08-01 DOI: 10.21013/jas.v15.n5.p1
Amadou Oumarou Fati, R. Bhandari, Mamadou Lewamy, Ouédraogo Souleymane, R. Adamou, Compaoré Abdoulaye, B. Joseph
This paper aims to describe a passive approach to reduce the energy demand for an existing building and can be made through an improvement of the design of the thermal envelope. The essential article goal is to simulate thermal construction responses in dependence on changing different materials of the construction of the building and also with less energy usage to design a more effective cooling system. In this approach, we simulate the building with different materials: three local materials (compressed earth, lateritic, and raw material) and one modern (Hollow cement) used in Burkina Faso and an energy analysis of the building has been carried out. The numerical optimization of the building design has been performed dynamically for these four materials using the COMSOL multiphysics simulation tool. The model treated is determining the internal temperature and cooling demand concerning a tertiary building in Burkina Faso like a classroom, which is located in a hot and dry climate to improve the indoor quality of the classroom knowing the importance of the thermal comfort in the room for socio-economic performance efficiency and well-being. The analysis result of these four materials shows that energy can be saved if we use local materials instead of the modern one because around 4KW of energy can be saving with local materials. The use of local materials in the building design can be an option for reducing the heat transfer into the room and at the same time the energy consumption.
本文旨在描述一种被动的方法,以减少现有建筑的能源需求,并可以通过改进隔热层的设计来实现。本文的主要目标是模拟建筑的热响应,以改变不同的建筑材料,并以更少的能源使用来设计更有效的冷却系统。在这种方法中,我们用不同的材料模拟建筑:三种当地材料(压缩土、红土和原材料)和一种在布基纳法索使用的现代材料(空心水泥),并对建筑进行了能量分析。利用COMSOL多物理场仿真工具对这四种材料的建筑设计进行了动态的数值优化。所处理的模型是确定内部温度和冷却需求有关的三级建筑在布基纳法索像一个教室,这是位于炎热和干燥的气候,以提高教室的室内质量,知道在房间的热舒适的重要性,社会经济性能,效率和福祉。这四种材料的分析结果表明,如果我们使用当地材料而不是现代材料,可以节省能源,因为当地材料可以节省约4KW的能源。在建筑设计中使用当地材料可以减少房间内的热量传递,同时减少能源消耗。
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引用次数: 0
Agro Informatics with its Various Attributes and Emergence: Emphasizing Potentiality as a Specialization in Agricultural Sciences—A Policy Framework 农业信息学的多种属性与涌现:强调农业科学专业的潜力——一个政策框架
Pub Date : 2020-07-13 DOI: 10.21013/jas.v14.n4.p1
P. Paul, P. Aithal, R. R. Sinha, R. Saavedra, B. Aremu
Informatics is one of the important branches of Applied Sciences. It is a practicing area and also a field of study.  The applications of Informatics in different areas and knowledge field has created various subjects and among these, one of important and emerging is Agricultural Informatics; which is the Information Science and Technology applications in the agriculture as well allied areas. In other words, techniques and technologies of both the fields i.e. Informatics and Agriculture lead the birth of Agro Informatics. The management and analysis of agricultural data with the help of Computing and IT may also be called as Agricultural Informatics. There are many allied nomenclatures of the field, but all are related and closely connected. In short, it is also called as Agro Informatics. Initially, it was treated only as a practicing area in the agriculture, horticulture, and veterinary sciences; but gradually it is a study area with different levels of programs at various universities and institutions, internationally. However, in the developed nation it is more common and widely available. Agro Informatics is an interdisciplinary field and very diverse. There are many features and functions, roles due to its timely need. This is a conceptual and policy-based research hence various aspects of Agro Informatics including its feature, functions, stakeholders, technologies including allied branches are mentioned. The paper also highlighted the proposed and possible programs of this field in academics in the field of Agricultural Sciences, as an empirical and policy research.
信息学是应用科学的重要分支之一。这是一个实践领域,也是一个研究领域。信息学在不同领域和知识领域的应用创造了各种学科,其中农业信息学是一个重要的和新兴的学科;即信息科学技术在农业及相关领域的应用。换句话说,信息学和农业这两个领域的技术和技术引领了农业信息学的诞生。在计算机和信息技术的帮助下对农业数据的管理和分析也可以称为农业信息学。该领域有许多相关的术语,但都是相互关联和紧密联系的。简而言之,它也被称为农业信息学。最初,它只被视为农业、园艺和兽医科学的实践领域;但渐渐地,它成为了一个研究领域,在国际上不同的大学和机构中有不同层次的项目。然而,在发达国家,它更为普遍和广泛。农业信息学是一个跨学科的领域,非常多样化。有许多特点和功能,由于其适时需要的作用。这是一个概念和政策为基础的研究,因此农业信息学的各个方面,包括它的特点,功能,利益相关者,技术包括相关分支被提及。文章还重点介绍了农业科学领域的学者在这一领域的建议和可能的方案,作为实证和政策研究。
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引用次数: 1
Preparation of Ready to Use Supplementary Food for Treating Moderate Acute Malnutrition in Children Aged 6 to 59 Months 即食辅食治疗6 ~ 59月龄儿童中度急性营养不良的制备
Pub Date : 2020-05-27 DOI: 10.21013/jas.v14.n3.p1
Patricia M. Ntsama, J. Tsafack, G. Medoua, C. Mbofung
Children with moderate malnutrition have a high risk of mortality and MAM is associated with a high number of nutrition-related deaths. If some of these children suffering from MAM do not receive adequate support, they may progress towards severe acute malnutrition (SAM), which is a life-threatening condition. Therefore, the management of MAM should be a public health priority A well-balanced diet was prepared based on the recommendation of WHO for the treatment of moderate acute malnourished children aged 6 -59 months.  According to the formulae, nine products of RUSF were prepared using cereals, legumes, seeds, oil, sugar, and vitamin and mineral premix. Three products of RUSF MSPe, PBPe, and ISPe were found to be better among the nine products by the mothers after sensory evaluation. Based on sensory evaluation in children, RUSF   MSPe was found to be the best among the three products. The product was analyzed for proximate composition, mineral, vitamin, digestibility of protein.  The protein, fat, carbohydrate, dietary fiber, total ash, vitamin C, Vitamin A,  iron, calcium and zinc of 100 g of the product were found to be  15.9g, 33.7g, 44.3g, 6.6g, 2.2g, 54.6 mg, 855 µg,  14.1 mg,  66.6 g and  12.4 µg respectively. The diet can supply 544.5 Kcal/100 g. The energy contributed by the protein, fat, and carbohydrate was found to be 11.68%, 55.7%, and 32.62% of total Kcals respectively. The protein digestibility adjusted to the chemical index PDCASS was 0.95. Hence, the prepared RUSF is in accordance with the specification given by WHO which could be effective in the treatment of moderate acute malnourished children after the clinical trial.
中度营养不良的儿童死亡率高,MAM与大量与营养有关的死亡有关。如果其中一些患有MAM的儿童得不到足够的支持,他们可能会发展为严重急性营养不良(SAM),这是一种危及生命的疾病。因此,MAM的管理应成为公共卫生的重点。根据世卫组织关于治疗6 -59个月的中度急性营养不良儿童的建议,制定了均衡的饮食。根据配方,以谷物、豆类、种子、油脂、糖、维生素和矿物质预混料配制了9种RUSF产品。经感官评价,母亲认为RUSF MSPe、PBPe和ISPe三种产品较好。根据儿童感官评价,RUSF MSPe是三种产品中效果最好的。对产品进行了近似成分、矿物质、维生素、蛋白质消化率的分析。100 g产品的蛋白质、脂肪、碳水化合物、膳食纤维、总灰分、维生素C、维生素A、铁、钙、锌含量分别为15.9g、33.7g、44.3g、6.6g、2.2g、54.6 mg、855µg、14.1 mg、66.6 g、12.4µg。日粮可提供544.5千卡/100克。蛋白质、脂肪和碳水化合物分别占总热量的11.68%、55.7%和32.62%。蛋白质消化率经化学指标PDCASS调整为0.95。因此,制备的RUSF符合世卫组织给出的规格,可在临床试验后有效治疗中度急性营养不良儿童。
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引用次数: 0
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IRA-International Journal of Applied Sciences
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