Journal of Chemistry: Education Research and Practice最新文献_第2页

Refractive Index Increments to Calculate the Refractive Index of a Single Solute in a Buffer Solution: An Experimental Course 折射率增量计算缓冲溶液中单一溶质折射率的实验课程

Journal of Chemistry: Education Research and Practice Pub Date : 2022-07-05 DOI: 10.33140/jcerp.06.02.12

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Review on the Synthesis Method of Nanocomposites and Approach to Making Semiconductors Visible Light Active 纳米复合材料的合成方法及半导体可见光活性的研究进展

Journal of Chemistry: Education Research and Practice Pub Date : 2022-07-05 DOI: 10.33140/jcerp.06.02.09

{"title":"Review on the Synthesis Method of Nanocomposites and Approach to Making Semiconductors Visible Light Active","authors":"","doi":"10.33140/jcerp.06.02.09","DOIUrl":"https://doi.org/10.33140/jcerp.06.02.09","url":null,"abstract":"Many studies have been concentrated on the degradation of toxic organic compounds in waste water via photocatalysis of various semiconductors. It has attracted great attention in modern science because of its potential in solving many current environmental problems such as air and water pollution. The common photocatalysts are primarily nanocomposite metal oxides, are known to be good photocatalysts for the degradation of several environmental contaminants due to their high photosensitivity, stability and non-toxic nature. There are different approaches for the synthesis of nanomaterials: Top down and bottom up approaches. Top- down approach is best approach and refers to successive cutting of a bulk material to get nano sized particles. These applications have their interest in controlling particle size, particle shape, size distribution, particle composition and degree of particle agglomeration. Some nanoparticles have large band-gap which leads to high recombination rate of photogenerated electron–hole pairs limit their utilization for photocatalytic applications. More recently, significant efforts have also been made to develop new or modified semiconductor photocatalysts that are capable of using visible-light (λ = 400–700 nm) including semiconductor coupling, metal ion doping, nonmetallic element doping, and sensitization with organic dyes. Coupling of two semiconductor nanoparticles with different band gap widths has been demonstrated in many studies as one of the most effective ways to reduce the recombination of electron–hole pairs and consequently, achieving a higher photocatalytic activity. Moreover, the ternary nanocomposites have high visible light photocatalytic activity and organic dyes can be decomposed efficiently, implying the higher photocatalytic activity of the ternary nanocomposites.","PeriodicalId":262953,"journal":{"name":"Journal of Chemistry: Education Research and Practice","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125541505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Water Footprint Assessment Study to Measure the Use of Water in A Particular Place in A Particular Time and Various Studies in this Background 测量特定时间、特定地点用水的水足迹评价研究及在此背景下的各种研究

Journal of Chemistry: Education Research and Practice Pub Date : 2022-07-05 DOI: 10.33140/jcerp.06.02.06

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The World of Theoretical Chemistry: Unboxed 理论化学的世界:打开盒子

Journal of Chemistry: Education Research and Practice Pub Date : 2022-07-05 DOI: 10.33140/jcerp.06.02.11

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Electromagnetic Interference Shielding Properties of (Ni0.5Zn0.5Fe2 O4 /CI/CB) Ternary Composites-Filled Paraffin Wax Matrix (ni0.5 zn0.5 fe2o4 /CI/CB)三元复合材料-填充石蜡基体的电磁干扰屏蔽性能

Journal of Chemistry: Education Research and Practice Pub Date : 2022-06-05 DOI: 10.33140/jcerp.06.02.18

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Patau Syndrome: Genetic Disorder Clinically Diagnosed Under Limited Resources at Singida Regional Referral Hospital 帕托综合征:在辛吉达地区转诊医院有限资源下临床诊断的遗传性疾病

Journal of Chemistry: Education Research and Practice Pub Date : 2022-06-05 DOI: 10.33140/jcerp.06.02.20

{"title":"Patau Syndrome: Genetic Disorder Clinically Diagnosed Under Limited Resources at Singida Regional Referral Hospital","authors":"","doi":"10.33140/jcerp.06.02.20","DOIUrl":"https://doi.org/10.33140/jcerp.06.02.20","url":null,"abstract":"Introduction: Patau syndrome or trisomy 13 is genetic disorder clinically characterized by the presence of numerous malformations with a limited survival rate for most cases. It is characterized by the cardinal triad of orofacial clefts, microphthalmia and postaxial polydactyly of the limbs and non-cyanotic heart defects. This article will create awareness of capturing all birth defect in country so as to know the magnitude of this problem. Case Description: A 6 hours baby boy delivered at gestation age 32 weeks by 36 years woman was referred from a lower health facility with diagnosis of cleft lip has several congenital anomalies. Discussion: Diagnosis of patau syndrome based on the clinical manifestation, phenotypes and the genetic. This case was managed to be diagnosed by clinical manifestation and phenotype. The presence of features provides more confidence of concluding the condition as patau syndrome. Parents deny referral due to poor prognosis although the medical counseling was provided which is not genetic counseling as developed countries. Conclusion: Capacity building to health practitioners in identifying and diagnosing patau syndrome should be done to all health facilities levels","PeriodicalId":262953,"journal":{"name":"Journal of Chemistry: Education Research and Practice","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126609507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Insights on Fluoroquinolones as Anti-Bacterial Drugs 氟喹诺酮类抗菌药物研究进展

Journal of Chemistry: Education Research and Practice Pub Date : 2022-06-05 DOI: 10.33140/jcerp.06.02.19

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Studies and Research on the Development of Innovative Wine-based Products 创新酒基产品开发的研究

Journal of Chemistry: Education Research and Practice Pub Date : 2022-01-20 DOI: 10.21203/rs.3.rs-1221627/v1

A. Boeriu, M. Lupu, C. Canja, G. Calefariu

{"title":"Studies and Research on the Development of Innovative Wine-based Products","authors":"A. Boeriu, M. Lupu, C. Canja, G. Calefariu","doi":"10.21203/rs.3.rs-1221627/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1221627/v1","url":null,"abstract":"\u0000 Wine has been part of the history of mankind for millennia and is a very important product for the industry from an economic point of view, being considered a luxury product, which makes it susceptible to fraud and adultery. The predisposition to purchase new foods or products obtained in a non-traditional way depends largely on the individual, perception and consequently, a new approach to consumer development focused on the consumer is needed. In the current study, wine was considered as an important and healthy base for development of new and innovative products – jelly and jellybean. By valorizing the properties of several ingredients – anise, cinnamon, cloves, lime and Psyllium husk the obtained products were improved considering the sensory and physicochemical profile. It was noticed that the viscosity of the jelly was significantly influenced by the amount of Psyllium husk added (5g, 10g) – 152 cP for 5g added and 96.8 cP for 10g added, similar results being reported for jellybean – 20.4 cP for 2g added and 60.2 cP for 4g added. Also, the acidity of the products was influenced by the addition of Psyllium husk, the values varying according to the added proportion.","PeriodicalId":262953,"journal":{"name":"Journal of Chemistry: Education Research and Practice","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115812272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Mechanical and Micrography Analysis of Armour Plate Weldment Using Tungsten Inert Gas and Oxy-Acetylene Welding Methods 钨惰性气体和氧乙炔焊接装甲板焊件的力学和显微分析

Journal of Chemistry: Education Research and Practice Pub Date : 2021-12-29 DOI: 10.21203/rs.3.rs-1192540/v1

O. A. Osuchukwu, Emmanuel Obiora Agbogu, D. K. Garba, J. O. Akindapo

{"title":"Mechanical and Micrography Analysis of Armour Plate Weldment Using Tungsten Inert Gas and Oxy-Acetylene Welding Methods","authors":"O. A. Osuchukwu, Emmanuel Obiora Agbogu, D. K. Garba, J. O. Akindapo","doi":"10.21203/rs.3.rs-1192540/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1192540/v1","url":null,"abstract":"\u0000 Defence Industries Corporation of Nigeria (DICON) has compared the effect of Tungsten Inert Gas (TIG) and Oxy-Acetylene welding methods on microstructural and some mechanical properties of Armour plate for the modification of military troop carriers. The optical emission spectrometer (OES) at DICON was used to analyse the chemical composition of the armour plate strip. It was then machined and cut to various test piece dimensions for both welding processes, following which the weldment samples were subjected to post-weld mechanical tests (tensile, impact, and hardness) and metallographic examination. The samples were then welded according to the procedure outlined in this study. The fundamental composition of armour plates was preserved in the samples. When compared to Oxy-Acetylene (OA) welding, Tungsten Inert Gas (TIG) welding produced better results, with an average ultimate strength (UTS) of 603.52 MPa and an impact strength of 10.53 J. In addition, the TIG analysis hardness strength for the source material, heat affected zone (HAZ), and weldment sample is 510.3, 502, and 511-HV, respectively. At x200 magnification, the micrography of the TIG weldment revealed a small coarse grain size of ferrite and larger areas of pearlite.","PeriodicalId":262953,"journal":{"name":"Journal of Chemistry: Education Research and Practice","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122734742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Growth and nitrogen accumulation assessment of banana (Musa acuminata) after exposure to hydroquinone in a charcoal-ultisol mix 炭-多酚混合物中对苯二酚对香蕉生长和氮素积累的影响

Journal of Chemistry: Education Research and Practice Pub Date : 2021-11-23 DOI: 10.21203/rs.3.rs-1104888/v1

B. Ikhajiagbe, Marychoice N. Ebinum

{"title":"Growth and nitrogen accumulation assessment of banana (Musa acuminata) after exposure to hydroquinone in a charcoal-ultisol mix","authors":"B. Ikhajiagbe, Marychoice N. Ebinum","doi":"10.21203/rs.3.rs-1104888/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-1104888/v1","url":null,"abstract":"\u0000 The present study investigates plant growth and nitrogen accumulation assessment of young banana plant (Musa acuminata) after exposure to hydroquinone (a mutagen) in a charcoal-ultisol mix. Charcoal was obtained from the wood of Pentaclethra macrophylla aerobically, and was crushed into a smooth powdered form. This was mixed with an ultisol obtained from the University of Benin Botanic garden. Different levels of the soil-charcoal mix were prepared as follows; 100% charcoal, 75% charcoal-25% soil, 50% charcoal-50% soil, 25% charcoal- 75% soil, and 100% sand. The charcoal-ultisol mix was then amended with 5ppm hydroquinone one week before propagating young banana suckers. Results showed that sprouting began fifteen days after propagation. There were also different changes in plant height in the various soil treatments; the lowest was reported in the 75-25 charcoal ultisol mix (10.50cm), compared to 45.83cm in plants sown in 100% charcoals. Foliar yield was lowest in the 75-25 charcoal-ultisol mix (8.55 grams per plant), compared to 29.15 grams per plant in the 100% charcoal. The below ground morphological characteristics test plant revealed that there were significant differences between the growth parameters. Nitrate nitrogen, Ammonia Nitrogen and total nitrogen were significantly accumulated on the leaves of plant. However, higher nitrogen accumulation in the leaves was found in treatment with high charcoal percentage.","PeriodicalId":262953,"journal":{"name":"Journal of Chemistry: Education Research and Practice","volume":"462 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114097933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0