UMYU Scientifica最新文献_第2页

Effect of different diesel treatments on growth of single and mixed plant communities and petroleum hydrocarbon dissipation during rhizoremediation 不同柴油处理对根际修复过程中单一和混合植物群落生长及石油烃耗散的影响

UMYU Scientifica Pub Date : 2023-09-20 DOI: 10.56919/usci.2323.001

Seniyat Afegbua, Lesley Batty, Joanna Renshaw

{"title":"Effect of different diesel treatments on growth of single and mixed plant communities and petroleum hydrocarbon dissipation during rhizoremediation","authors":"Seniyat Afegbua, Lesley Batty, Joanna Renshaw","doi":"10.56919/usci.2323.001","DOIUrl":"https://doi.org/10.56919/usci.2323.001","url":null,"abstract":"The use of mixed plant communities has been proposed to address phytotoxicity while improving plant stress tolerance and contaminant degradation. However, there has been conflicting findings on the use of mixed plant community. This study assessed the impact of three diesel treatments on plant growth and TPH dissipation in single and mixed plant communities. This involved greenhouse experiment with Medicago sativa, Festuca arundinacea, and Lolium perenne and Medicago sativa + Lolium perenne with the diesel-spiked soils at 102,000, 151,000 and 320,000 µg kg-1 TPH represented as Treatments 1, 2 and 3 respectively. Plant growth was inhibited with root biomass yield was greater compared to plant shoots especially for F. arundinacea and L. perenne. There was a significant decrease in the root biomass yield of M. sativa, L. perenne, F. arundinacea and M. sativa + L. perenne. The highest TPH dissipation of 81, 69 and 72 % was displayed by L. perenne in the Treatments 1, 2 and 3 respectively. However, TPH dissipation was generally comparable for the vegetated and unvegetated soil and were not significantly different (p>0.05) for the different plants and treatments. The impact of plant communities on the rhizoremediation of TPH-contaminated soils may dependent on factors such as plant species, TPH concentration stress tolerance and benefits of individual plant if mixed plants are to be employed.","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378787","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

Approximate Solution of Schrodinger Equation to Diatomic Molecule for Harmonic Oscillator 谐振子双原子分子薛定谔方程的近似解

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2223.005

Hassan Bukar, A. Tahir

引用次数: 0

Comparative Study of the Parasitic Helminth Burden of Clarias gariepinus and Tilapia zilli In Fresh Water Reservoir (Zobe Dam) Dutsin-Ma, Katsina, Nigeria 尼日利亚dutsina - ma淡水水库(Zobe坝)中gariepinclarias gariepinus和罗非鱼zilli寄生蠕虫量的比较研究

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2322.009

Yusuf Buhari Shinkafi, None Sulaiman Kauthar Muhammad, None Habiba Zakari, None Ibrahim Hamza Kankia

{"title":"Comparative Study of the Parasitic Helminth Burden of Clarias gariepinus and Tilapia zilli In Fresh Water Reservoir (Zobe Dam) Dutsin-Ma, Katsina, Nigeria","authors":"Yusuf Buhari Shinkafi, None Sulaiman Kauthar Muhammad, None Habiba Zakari, None Ibrahim Hamza Kankia","doi":"10.56919/usci.2322.009","DOIUrl":"https://doi.org/10.56919/usci.2322.009","url":null,"abstract":" The incidence of gastrointestinal helminth parasites was investigated in a research of Clarias gariepinus and Tilapia zilli from Zobe Dam, Dutsin-ma. The results showed a high prevalence of helminth parasites overall, with T. zilli recording 36% and C. gariepinus showing a rate of 68%. Cestodes, trematodes, and nematodes were the three types of parasites found in the fish's intestines. Notably, trematodes predominated in T. zilli (54.55%), whereas cestodes were more common in C. gariepinus (62.71%). Procamallanus leavionchus was the most notable nematode species found in C. gariepinus, followed by cestodes (Polyonchobothrium clarias) and trematodes (Diplostomum spathaceum). The nematodes, cestodes, and trematodes in T. zilli were represented by Cacullanus sp., Diphyllobothrium spp., and Hepsetidae fasciatus, respectively. Both species showed that males had more helminth parasites than females did. In C. gariepinus, statistical analysis showed no gender differences, however in T. zilli, a gender difference was seen at the P<0.05% level of significance. In addition, the study found a statistically significant correlation between fish length and body weight, and the frequency of helminth infections. These results highlight the significant load of helminth parasites in both Clarias gariepinus and Tilapia zilli, highlighting the need for efficient control techniques to reduce the negative effects of parasitic illnesses on fish production.","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136366113","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

Influence of Blending on Mechanical Behavior of Low-Density Polyethylene, Polypropylene, Polyvinylchloride 共混对低密度聚乙烯、聚丙烯、聚氯乙烯力学性能的影响

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2223.006

Suleiman Shaibu Asuku, Y. Abubakar, Ali Abdulraheem, A. I. Galadima, Abdel Malik Abdel Gaffar Amoka

{"title":"Influence of Blending on Mechanical Behavior of Low-Density Polyethylene, Polypropylene, Polyvinylchloride","authors":"Suleiman Shaibu Asuku, Y. Abubakar, Ali Abdulraheem, A. I. Galadima, Abdel Malik Abdel Gaffar Amoka","doi":"10.56919/usci.2223.006","DOIUrl":"https://doi.org/10.56919/usci.2223.006","url":null,"abstract":"Three thermoplastic polymers, low-density polyethylene (LDPE), polypropylene(PP), and polyvinyl chloride (PVC),were synthesized from their raw pellets.Three blends of 1:1 wt.% of low-density polyethylene/polypropylene, low-density polyethylene/polyvinylchloride, polypropylene/polyvinylchloride, and one blend of 1:1:1 wt.% of low-density polyethylene/polypropylene/polyvinylchloride were produced via compression mould method using Two-roll Mill machine and Compression Mould machine. Using the Tensile Strength Tester machine, the pristine polymer and the blends were cut into dumbbell shapes for mechanical testing. The resultsobtained are 9.8MPa and 67.5% maximum stress and strain, respectively, for LDPE, 29MPa, and 12.4% maximum stress and strain, respectively, for neat PP. 25.8MPa and 35% maximum stress and strain respectively for pristine PVC, 19.2MPa and 44% maximum stress and strain respectively for LDPE/PVC blend, 19MPa and 29% maximum stress and strain respectively for LDPE/PP blend, 27.5MPa and10.75% maximum stress and strain respectively for PP/PVC, 21MPa and 10.4% maximum stress and stain respectively for LDPE/PP/PVC blend. The force at peak and the respective peak elongation are; 85.612N and 0.008387m for pristineLDPE, 344.810N and 0.004810m for pristinePP, 264.976N and 0.005496m forpristine PVC, 188.288N and 0.005980m for LDPE/PVC blend, 174.755N and 0.005109m for LDPE/PP blend, 250.196N and0.004287m for PP/PVC blend, 275.175N and 4.009mm for LDPE/PP/PVC blend. The maximum energies expended to have maximum extension are 0.71802784J (LDPE), 2.04578339J (PP), 1.70308635J (PVC), 1.12596224J (LDPE/PVC),0.8928233J (LDPE/PP), 1.50129025J (PP/PVC) and 1.10317658J (LDPE/PP/PVC). These results show improvement in the mechanical properties of the blends when compared with those of the constituent polymers. It also indicatesthat polymeric properties modification via an immiscible polymer blend is possible and easy to achieve.","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134494891","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

Comparative Analysis of Biodiesel Production by Transesterification and Interesterification of Rothmannia longiflora Seed oil using a Heterogeneous Catalyst 非均相催化剂下长叶藤油酯交换与酯化制备生物柴油的比较分析

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2223.008

A. Baki, Sarkin, Malami Usman Muhammad, U. Faruq, Zaki, A. Sani, B. Idris, A. Yusuf, A. Fardami

{"title":"Comparative Analysis of Biodiesel Production by Transesterification and Interesterification of Rothmannia longiflora Seed oil using a Heterogeneous Catalyst","authors":"A. Baki, Sarkin, Malami Usman Muhammad, U. Faruq, Zaki, A. Sani, B. Idris, A. Yusuf, A. Fardami","doi":"10.56919/usci.2223.008","DOIUrl":"https://doi.org/10.56919/usci.2223.008","url":null,"abstract":"Biodiesel is a promising alternative fuel with better characteristics over petro-based fuels. It is conventionally produced via transesterification of vegetables oil with methanol. Chemical interesterification is another alternative route for conversion of vegetables oil to biodiesel. It yields a value-added co-product, triacetin as against glycerol formed as by-product by transesterification. In this study transesterification and chemical interesterification of Rothmannia seeds oil was investigated using calcined swan mussel shell (Anodantacygnea) as solid base catalyst prepared by hydrothermal treatment and characterized using FT-IR, XRF and XRD analysis. Reaction parameters were optimized, with optimal methanol/oil ratio of 1:6, catalyst amount of 1.0g, reaction time of 60 minutes and reaction temperature of 55oC, achieving maximum yield of 93.47 % via transeterification while for interesterification, the optimum yield of 87.50 % was achieved at catalyst amount of 1.5g, reaction temperature of 60oC, reaction time of 90 minutes and methyl acetate/oil of 9:1. Transesterification of the seed oil shows better conversion of triglycerides compared to chemical interesterification. Some important fuel properties were determined and compared with ASTMD standard. The study has revealed potentials of Rothmannia longiflora seed oil as feedstock for biodiesel production. \u0000 ","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127899249","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

Effect of Instant Noodles Formulated with Natural Spice and Noodle Seasoning on Hemato-Biochemical Parameters and Body Weight Changes in Albino Rats Model. 天然香料和面条调味料配制的方便面对白化模型大鼠血液生化指标和体重变化的影响。

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2322.013

Ofem Effiom Eteng, Nseobong O. Bassey, Violet A. Nelson, Esua O. Udosen

{"title":"Effect of Instant Noodles Formulated with Natural Spice and Noodle Seasoning on Hemato-Biochemical Parameters and Body Weight Changes in Albino Rats Model.","authors":"Ofem Effiom Eteng, Nseobong O. Bassey, Violet A. Nelson, Esua O. Udosen","doi":"10.56919/usci.2322.013","DOIUrl":"https://doi.org/10.56919/usci.2322.013","url":null,"abstract":"Considering the fact that food contains many nutrients that can be exploited and used by man. The study assesses the impact of instant noodles prepared with natural spice and noodles seasoning on changes in body weight and hemato-biochemical parameters in a model using albino rats. Nine (9) distinct groups of six (6) Wistar rats each were given instant noodles with seasoning and one with natural spice (40g of crayfish and 30g of onion) for 90 days. The Wistar rats were divided into 54 groups. While groups 2 through 9 served as the treatment groups and were given variously prepared instant noodles and rat pellets, group 1 served as the control group was given rat pellet and tap water. Using established techniques, all biochemical parameters were examined. The findings revealed that there were no appreciable variations in the body weight of Wistar rats in any of the experimental groups. In comparison to those fed instant noodles cooked with noodle seasoning, those fed instant noodles prepared with natural spice show significantly higher development rates (P< 0.05). Furthermore, rats given quick noodles had a non-significant rise (p > 0.05) in the concentration of total protein. Additionally, the albumin concentration in these groups increased significantly (P < 0.05),when compared to rats fed noodles prepared with seasoning to rats fed noodles prepared with natural spice, non-significant differences (p> 0.05) were observed in the blood parameters. Spiced instant noodles are not safe to eat. It is thus advised that users of instant noodles reduce the amount of spices used, as cooking with natural spices appears to mitigate the effect of free radicals deposited on the spices.","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136366119","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

Resource Limitations for Wireless Sensor Networks to Establish a Comprehensive Security System in the 5G Network 无线传感器网络在5G网络中建立综合安全体系的资源限制

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2223.007

Muhammad Muntasir Yakubu, U. Maiwada

{"title":"Resource Limitations for Wireless Sensor Networks to Establish a Comprehensive Security System in the 5G Network","authors":"Muhammad Muntasir Yakubu, U. Maiwada","doi":"10.56919/usci.2223.007","DOIUrl":"https://doi.org/10.56919/usci.2223.007","url":null,"abstract":"The difficulty with safety in Wireless Sensor Networks (WSNs) requires comprehensive, holistic security techniques that can offer a long-term solution. Quantum security is anticipated to assist in the overall security strategy for WSN systems given the broad adoption of WSN around the world, notably the Internet of Things (IoTs). With the use of WSN and these quantum safeguards, data security can be offered whenever and anywhere. This study examines the security limitations of WSNs and offers a comprehensive approach through all network layers that will function as an Equal security mechanism solution and a solution to shield nodes from threats such as attacks on sensitive data, eavesdropping, disruption, destruction, and alteration. WSNs are used in a range of missions, especially the armed forces, ecological, and health ones, for evaluation, tracking, and regulating purposes. However, problems arise from being aware of their resource limitations. Data and node security are difficulties when using WSN because to low computation capabilities, small memory, few power sources, and unreliable connectivity, to name just a few. Therefore, as the demand for WSNs increases, so does the need for better security measures. \u0000 ","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126095456","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

Development of Cost Efficient Solar Powered System for Rural Areas 经济高效的农村太阳能供电系统的开发

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2223.004

Habibu Ahmad, M. Abdulsalam

引用次数: 0

Isolation and Identification of Fungi Associated with Dried Meat Sold at Sokoto Metropolis 索科托市肉干相关真菌的分离与鉴定

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2322.010

Muhammad Adamu, Ibrahim Yusuf Tafinta, Habsatu Shehu, Hajara Ahmad

{"title":"Isolation and Identification of Fungi Associated with Dried Meat Sold at Sokoto Metropolis","authors":"Muhammad Adamu, Ibrahim Yusuf Tafinta, Habsatu Shehu, Hajara Ahmad","doi":"10.56919/usci.2322.010","DOIUrl":"https://doi.org/10.56919/usci.2322.010","url":null,"abstract":"Thin sheets of high-quality, lean beef are partially dried in the sun to create dried meat made from animals. The duration of the solar drying phases and the infusion period of the ingredients rely on the ambient conditions, which are the primary sources of microbial contamination, notably fungi. This study's objective was to recognize and collect fungi connected to the dried meat offered for sale in Sokoto city. During the course of the research, dried meat samples were gathered from four different Sokoto metropolis locations, including Kusha Shagalinku on Atiku Road, Gidan Man Ada, Abdullahi Fodio Road, and Sasakawa. The samples were examined for microorganisms using serial dilution, and fungi were identified based on the morphology of the colony, conidia, and conidiogenous cells. The research's findings showed that four species of fungi were isolated, with Aspergillus flavus, Aspergillus niger, Aspergillus fumigatus, and Aspergillus terreus having the highest and lowest percentages of occurrence, respectively, among the isolated species. According to the location, the dried meat retrieved from Atiku road has the lowest frequency occurrence (1.94) and the fungi isolated from it has the highest frequency occurrence (30.56%). These results suggest that eating dry meat may increase the risk of exposure to aflatoxins in humans. The preparation and storing of the dried meat should be done with the utmost safety and cleanliness.","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136366118","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

An Order Inventory Model for Delayed Deteriorating Items with Two-Storage Facilities, Time-Varying Demand and Partial Backlogging Rates Under Trade-Credit Policy 贸易信贷政策下具有两个存储设施、时变需求和部分积压率的延迟变质物品订单库存模型

UMYU Scientifica Pub Date : 2023-06-30 DOI: 10.56919/usci.2322.011

None Babangida B., None Baraya Y. M., None Ohanuba, O. F., None Hali, A. I., None Malumfashi, M. L.

{"title":"An Order Inventory Model for Delayed Deteriorating Items with Two-Storage Facilities, Time-Varying Demand and Partial Backlogging Rates Under Trade-Credit Policy","authors":"None Babangida B., None Baraya Y. M., None Ohanuba, O. F., None Hali, A. I., None Malumfashi, M. L.","doi":"10.56919/usci.2322.011","DOIUrl":"https://doi.org/10.56919/usci.2322.011","url":null,"abstract":"The retailer's ideal replenishment strategy for non-instantaneous decaying goods with two-phase demand rates, two storage facilities, and shortages under a permissible payment delay has been determined in this study. While the constant demand rate is considered once deterioration has begun, the demand rate up to that point is believed to be a time-dependent quadratic function. Backlogs and shortages are also taken into consideration. Whether or not the backlog will be accepted depends on how long it will be until the next replenishment. As a result, the backlogging rate fluctuates and depends on how long it takes for the next refill. The models identify the ideal cycle length, order amount, and period at which the inventory level in the owned warehouse reaches zero in order to reduce the overall variable cost per unit of time. For the solutions to exist and be unique, both the necessary and sufficient requirements must be met. The best trade credit period is identified for each model using numerical examples, and the best model among the created models is identified using the best trade credit periods. Sensitivity analysis can offer some managerial insights","PeriodicalId":235595,"journal":{"name":"UMYU Scientifica","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136366108","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