Journal of Engineering and Sciences最新文献_第2页

Enhanced Rock Slope Stability Analysis: Integrating the Partial Factor Method into the Limit Equilibrium Method 强化岩石边坡稳定性分析：将部分因子法整合到极限平衡法中

Journal of Engineering and Sciences Pub Date : 2024-06-04 DOI: 10.3126/jes2.v3i1.66235

Hare Ram Timalsina

{"title":"Enhanced Rock Slope Stability Analysis: Integrating the Partial Factor Method into the Limit Equilibrium Method","authors":"Hare Ram Timalsina","doi":"10.3126/jes2.v3i1.66235","DOIUrl":"https://doi.org/10.3126/jes2.v3i1.66235","url":null,"abstract":"Rock slope stability is crucial for sustainable design. Especially concerning natural or artificial rock-cut slopes. The stability of these slopes depends largely on features of rock mass, particularly discontinuities. Failure modes are determined by these features and are evaluated using kinematics analysis with stereographic projections. Various methods exist for analyzing rock slopes, including the limit equilibrium method (LEM), which assesses stability based on a factor of safety (FS). Conversely, the partial factor method (PFM), predominantly used in Europe, offers a more reliable and probabilistic approach, incorporating uncertainty factors. Although Eurocode, which employs the PFM, is widely utilized, it faces disputes and undergoes updates based on ISRM recommendations. The partial factor method is considered more conservative than the limit equilibrium method due to its comprehensive probabilistic approach. The choice between methods depends on project requirements, data availability, and expertise. This study compares the limit equilibrium and partial factor methods for rock slope analysis, concluding that the partial factor method is more conservative and sustainable for long-term stability assessment. Whereas, the traditional method is often used for short-term assessments.","PeriodicalId":510231,"journal":{"name":"Journal of Engineering and Sciences","volume":"11 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141267211","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

Multi-Directional Wind Turbine with Combined Savonius and Darrieus Rotors: A Comparative Performance Analysis 采用萨沃尼乌斯和达里厄斯组合转子的多方向风力涡轮机：性能对比分析

Journal of Engineering and Sciences Pub Date : 2024-06-04 DOI: 10.3126/jes2.v3i1.66240

Swarnim Duwadi, Pawan Khanal, Abhishek Pandey

引用次数: 0

Study of Two-wheel Vehicle’s fuel consumption under the Influence of tire Inflation Pressure 轮胎充气压力影响下的两轮车油耗研究

Journal of Engineering and Sciences Pub Date : 2024-06-04 DOI: 10.3126/jes2.v3i1.66243

Samir Ali Roy Bhat, Shraddha Bhandari, Durga Bastakoti

{"title":"Study of Two-wheel Vehicle’s fuel consumption under the Influence of tire Inflation Pressure","authors":"Samir Ali Roy Bhat, Shraddha Bhandari, Durga Bastakoti","doi":"10.3126/jes2.v3i1.66243","DOIUrl":"https://doi.org/10.3126/jes2.v3i1.66243","url":null,"abstract":"The value of air pressure in the tire not only supports the entire weight of the vehicle, it also plays a crucial role in improving the vehicle’s performance, reducing friction, providing comfort, boosting economy and enhancing safety. This study deals with the influence of tire inflation pressure on fuel consumption at various road conditions and speeds. The experimental test was performed riding a motorcycle of 180cc and using a mileage measuring kit to find the effect of tire pressure on three different road surfaces i.e., highway, earthen and graveled. The standard tire pressure for both front and rear tires recommended by the manufacturing company was also evaluated to observe the change in mileage. The results showed that the highest mileage of 55.97 km/L was obtained on the highway among the defined three road conditions and a linear drop of 5psi in tire pressure led to loss of mileage up to 6.11% in highway, 5.35% in earthen and 2.80% in graveled road. Also, the variation in speed resulted to compensation of mileage by nearly 39.9% maximum. These results highlight the importance of keeping the correct value of tire inflation pressure in relation to fuel consumption.","PeriodicalId":510231,"journal":{"name":"Journal of Engineering and Sciences","volume":"93 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141268031","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

Concrete Compressive Strength Prediction by Ensemble Machine Learning Approach 利用集合机器学习法预测混凝土抗压强度

Journal of Engineering and Sciences Pub Date : 2024-06-04 DOI: 10.3126/jes2.v3i1.66249

Jyoti Thapa

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Comparative Performance Evaluation of Public Transportation Services in Pokhara Valley 博卡拉山谷公共交通服务绩效比较评估

Journal of Engineering and Sciences Pub Date : 2023-12-11 DOI: 10.3126/jes2.v2i1.60530

Subas Subedi, Ramesh Basnstola, Sandip Duwadi

引用次数: 0

Physicochemical Parameters and Their Toxicity Level for Recreational Activity and Plaque Psoriasis Healing Effects of Hot Spring Water of Kharapani, Pokhara, Nepal 尼泊尔博卡拉 Kharapani 温泉水的理化参数及其对娱乐活动和斑块型银屑病疗效的毒性水平

Journal of Engineering and Sciences Pub Date : 2023-12-11 DOI: 10.3126/jes2.v2i1.60531

Hari Sharan Adhikari, K. Dhakal, Rameshwar Adhikari

{"title":"Physicochemical Parameters and Their Toxicity Level for Recreational Activity and Plaque Psoriasis Healing Effects of Hot Spring Water of Kharapani, Pokhara, Nepal","authors":"Hari Sharan Adhikari, K. Dhakal, Rameshwar Adhikari","doi":"10.3126/jes2.v2i1.60531","DOIUrl":"https://doi.org/10.3126/jes2.v2i1.60531","url":null,"abstract":"The current study involved the determination of water quality parameters, inclusively the dissolved mineral levels, to assess the therapeutic and toxicity states of the hot spring water of Kharapani, Pokhara, Nepal. People have widely used the hot spring for taking baths and soaking in to heal from allergic and fungal ailments, musculoskeletal disorders, arthritis, and different diseases. The high values of alkalinity (700 ppm), total suspended solids with the size of at least 2 μm (TSS) (50 ppm), total dissolved solids (TDS) (650 ppm), turbidity (13 NTU), soluble carbonate (150 ppm), soluble chloride (250 ppm), surface tension (72.98 Dynes cm-1) and total hardness (880 ppm) showed the spring water was unsuitable for drinking, swimming and soaking in. The mineral levels at nitrate (undetectable), iron (II) (<0.3 ppm, undetectable), iron (II) (<0.3 ppm, undetectable), aluminum (III) (<0.3, undetectable) corresponded to safe utility levels, and the high sulphate content at 400 ppm showed that the spring was a sulphate rich hot spring with the properties of healing the fungal ailments and respiratory and musculoskeletal disorders. The hot spring water soakers reported healing and relief from itchy skin allergic rashes, and persisting skin disorders like acne, eczema, psoriasis, and joint pain, while the adverse effects such as skin blister, ooze and crust, dry and inflamed skin, dandruff, etc. were also found common among the prolonged soakers of the hot spring. The study showed an excellent healing effect of hot spring baths against psoriasis but associated with mild skin burn and dandruff. The study showed the necessity of technical moderation and maintenance of the minerals and water quality parameters at the acceptable range for swimming purposes.","PeriodicalId":510231,"journal":{"name":"Journal of Engineering and Sciences","volume":"55 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139184300","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