Welding, a crucial manufacturing process across various industries, involves forming permanent component joints. Friction stir welding (FSW), an efficient technique is employed for this purpose. FSW requires a fixture to securely hold the workpiece during welding, ensuring precise alignment, minimal deformation and effective heat dissipation. This work focuses on designing a fixture tailored for T-joint configuration FSW of aluminum alloys. Initial concept design was refined for optimal performance with material selection (Mild Steel and EN8) based on requirements. Real-time welding conditions were considered for analysis, leading to the choice of EN8 due to reduced deformation. This paper outlines the steps involved in designing, analyzing and manufacturing a T-joint welding fixture, guaranteeing proper alignment, clamping and heat management during welding.

Because of the global warming, the phenomenon of Solid Transport (bedloading transport and suspension transport), have increasingly serious impact on the normal function of hydraulic road drainage in the Higt atlas Morrocco. Indeed, they are clogged even if they are recently built, which generates the submersion and flooding of neighboring areas. This causes enormous material damage and threatens the safety of local residents.\nSo, in this work, we studied and quantified the solid flow as part as the design of hydraulic structure \" drain \" on flow crossing the Provincial Road RP 2010 in the “LAHJAR River Site” in the High Atlas Morrocco. The area study is located in the “Ourika” watershed. It is also called “LAHJAR” because il carries lot of pebbles each time the flood passes.\nWe tested the most widely used calculation methods worldwide in this study. After checking the field results (the 100-year solid deposition height at the structure = 1.5 m), we found that: \n- the formulas of Van Rijn, Engelund Hansen, Rickenmann gives values negligible. \n- the values from the formulas of Meyer Peter and Müeller, Watanabe, Ribberink, and Parker, are comparable to those observed.\n- the formulas of Schoklitsch and Sogreah, give excessive results.\nThus, this heigt of solid deposit is also important that liquid and must be considered in the design study.

The study focuses on the impact foliar spraying of cyanobacterium Spirulina platensis extract and the inoculation with the endophyte N2- fixing Pseudomonas stutzeri, and their consortium in the presence of different nitrogen doses on growth and yield of onion under field conditions. A number of bioactive compounds of Spirulina and Pseudomonas were analyzed by GC-MC and amino acid production of Spirulina by the amino acid analyzer. Hydrogen cyanide (HCN), indole acetic acid (IAA), ammonia (NH3), pectinase activity, and N2- fixation of Pseudomonas were measured. Height of plant (cm), length of leaf (cm), green leaves number/plant, bulb diameter (cm), fresh and dry weight of plant (g), chlorophyll a, b of leaves, bulb weight (g), marketable bulbs yield (t. ha-1), culls bulb weight (t. ha-1), total bulbs yield (t. ha-1), bulb diameter (cm), total soluble solids (TSS%), dry matter content (DM%), evaluation of storage behavior, and economic feasibility were estimated. The results indicate that Spirulina extract has a number of bioactive compounds. Pseudomonas can produce HCN, NH3, IAA, pectinase, and nitrogen fixation. The application of consortium with recommended dose of nitrogen was increased the onion plant parameters, marketable yield, total bulb yield, bulb weight, bulb diameter, TSS%, DM%, net return, benefit-cost ratio (B: C), lowest cumulative weight loss% of bulbs during storage, and reduce culls weight compared with other treatments in both seasons.

It is a matter of concern whether the human population is eroding the Earth’s life support system. Rapid urbanisation is fuelling separation between humans and nature, especially in cities. Cities can embrace sustainable development by adopting a natural ecological perspective and creating comfortable urban environments comprising green space in the form of parks or green roofs. Urban parks provide ecological, economic and social benefits to cities and citizens. However, the ever increasing urban population threatens the transformation of cities into ecological cities. This article discusses the importance of integrating moral values and social factors derived from ecological wisdom into urban ecological development; in particular, this paper focuses on the integration of green spaces in order to make cities more sustainable. The article concludes with a discussion of the importance of ecophronēsis in adopting an ecological practice that can inform urban ecological intensification.

Based on the Essential Science Indicators database, this study analyzed 966 top papers of maize and corn research based on the Essential Science Indicators database from 2008 to 2018, which include 964 highly cited papers and 15 hot papers in the field. Results showed that all paper written in English, were from 4,353 authors, 1,287 organizations and 84 countries/territories, listed in 290 core journals. Top 5 core journals with higher impact factor ranked as Plant Physiology, PNAS, Plant Cell, Food Chemistry and Bioresource Technology. Top six countries and regions were USA, Peoples R China, Germany, France, Australia, England. Top 5 organizations were Cornell Univ, Chinese Acad Sci, Univ Minnesota, Iowa State Univ, Univ Wisconsin. Based on the analysis of network map of VOSviewer, there is cooperation for authors, organizations and countries or regions. The analysis of all keywords showed that maize and corn research were separated six clusters. In addition, this study demonstrates that there are more top papers come from journals with the higher IF and higher rank in WoS Category. So, authors can choose their ideal journal with a high impact factor or Q1 in Category to publish their papers in the English language related to their research field.

Background: Cervical lymph nodes are lymph nodes found in the neck. There is 800 lymph nodes in the human body, 300 of them are in the neck. Lymphadenitis is enlargement in one or more lymph nodes, usually due to infection. Hijab is a veil worn by some Muslim women in the presence of any male outside of their immediate family, which usually covers the head and chest. It is restrict forbidden to Muslim woman to unveil any single hair of her head, so they use many pins around the head to fix there Hijab. In many times while using pins they are self-pricked. These pins as we know are not sterile or even clean, and may cause local infection in the scalp and face.\nMaterials and Methods: Retrospective study during the past five years among seventy five female out patients, visited our Oral and Maxillofacial clinic in dental department. Our data was collected according to medical history of patients then; Fine Needle Aspirations (FNA) was performed to confirm diagnosis. All female patients were using (Hijab- head cover in Muslim women).\nResults: Data collected of 75 female patients. Lymphadenopathy causes were various. Most of them resulted from nonspecific lymphadenitis 67 patients, 4 tuberculosis, 2 lymphoma, 2 cat scratch disease. Aetiology of 67 nonspecific lymphadenitis was 40 patients of dental cause, 10 of sore throat, 7 of acne vulgaris, 3 of mild facial injuries, and 7 of (Hijab).\nConclusion: Hijab cervical lymphadenitis in Islamic communities is not uncommon and, unexplained cervical lymphadenitis should be taken into account this type. Treatment of choice is first generation of cephalosporins. In the media we recommend awareness campaigns to avoid this phenomenon and cancer phobia of affected females.

In this paper, by using a direct method based on the Jacobi elliptic functions, the exact solutions of the space-time fractional symmetric regularized long wave (SRLW) equation has been obtained. The elementary and elliptic functions solutions of a nonlinear ordinary differential (auxiliary) equation (dF⁄dξ)^2=PF^4(ξ)+QF^2(ξ)+R are also examined. Moreover, the solutions are found in general form including rational, trigonometric and hyperbolic functions. Some solutions are illustrated by the graphics.

Introduction: Caffeine is a supplement that is not in the list of doping drugs and nowadays is used up amply. We aimed to compare acute and continuous effects of caffeine consumption with a four-week anaerobic training on anaerobic performance, serum lactate levels and body composition values in active men. Methods: Thirty-two active male students performed a 400m-run and blood samples were collected 2 minutes later. Next day, Wingate test was conducted to assess anaerobic power. Then, all subjects were randomly divided into 2 groups: caffeine consumption (Experimental group) and placebo (Control group), performing a 4-week anaerobic exercise. Finally, blood samples have been collected like before; then, each group was divided into 2 subgroups (caffeine or placebo consumption for one day) and blood samples have been collected after a 400m-run again. Subjects also consumed either caffeine or placebo at a dose of 5 mg/kg of body weight. T-tests were used to analyze data, at a significance level of P<0.05. Results: Anaerobic training for 4 weeks with and without caffeine consumption decreased the time of 400m-run (p=0.001, Experimental group vs. p=0.006, Control group) and elevated serum lactate levels (p=0.001) (higher differences were observed in caffeine group), but had no significant effect on Wingate test results. Weight value only increased in Experimental group. Acute consumption of caffeine in placebo group also decreased the time of 400m-run and elevated lactate levels (p=0.001). Conclusion: Acute and continuous consumption of caffeine along with anaerobic exercise improved anaerobic performance; while increased serum lactate levels in active men

Whole-body vibration (WBV) is one of the physical factors affecting taxi drivers that causes low back pain gastrointestinal disorders. This study aimed to reduce WBV transmitted to taxi drivers and occupants of Peugeot 405 by providing optimal tire inflation pressure. This experimental study was carried out on Peugeot 405 taxi manufactured by Iran Khodro Co. in Iran. Vibration characteristics were measured three times, in combined statuses of tire inflation pressure, type of gas used to inflate tires, presence or absence of tubes in tires, car speed, according to ISO 2631-1, and tire temperature Then, the data were analyzed. The A (8) value decreased with reducing tire inflation pressure (P < 0.001). The A (8) value at an inflation pressure of 28 psi was reported to be 21% lower than that at an inflation pressure of 30 psi. There was an inverse correlation between tire temperature and tire inflation pressure (P < 0.001). The average tire temperature increased with reducing tire inflation pressure. However, no significant difference was found between the mean tire temperatures at tire inflation pressures of 28 psi and 30 psi (P < 0.05). The study results showed that the exposure of Peugeot 405 taxi drivers to WBV exceeds the permissible limits and it can be reduced below the permissible limits by providing a tire inflation pressure of 28 psi. A tire inflation pressure of 28 psi is recommended to replace the pressure recommended by car makers (30 psi).