Numerical and Experimental Investigation of Aerodynamic Characteristics of Morphing Trailing Edge Wings in The Application of MAV

In the past few years, FDM basedpolymer3D printing process has flourished mainly with ABS filaments as a thermoplastic source. Food packing, medical, marine and agriculture industries employdevices and other usable items made of polymers. Utilizing layered fabrication components in these areascompelthem to have self-cleansing, anti-freezing and corrosion resistant surfaces. It is generally complex and expensive to prepare hydrophobic coatings. The present work is related to the development of a surface coating on 3D printed ABS specimens with the mentioned properties. 3D printed specimens were fabricated using Flash Forge 3D printer without any modifications, and the hydrophobic coatings were achieved by dip coating process using Tricalcium phosphate-chitin solutions with a ratio of 70:30. Static contact angle measurement was employedin gaging wettability impact on dip coated 3D printed specimens. By using digital vernier calipers and profilometer (SJ410), dimensional accuracy and surface roughness were assessed pre and post-coating. According to ASTM D570-98, water absorption tests were conducted at different time intervals. Results of the experiment showed that the hydrophobic solutions had been successfully synthesized. The maximum contact angle was achieved for solution 1(4g of tricalcium phosphate solution with 0.3g chitin solution) i.e., 109.3°. Improvement in the textureof 3D printed ABS surfaceswasobserved after dip coating. Dip-coated 3D printed ABS specimens exhibited minimal absorption based on their weight gain per area

Numerical and Experimental Investigation of Aerodynamic Characteristics of Morphing Trailing Edge Wings in The Application of MAV

In the past few years, FDM basedpolymer3D printing process has flourished mainly with ABS filaments as a thermoplastic source. Food packing, medical, marine and agriculture industries employdevices and other usable items made of polymers. Utilizing layered fabrication components in these areascompelthem to have self-cleansing, anti-freezing and corrosion resistant surfaces. It is generally complex and expensive to prepare hydrophobic coatings. The present work is related to the development of a surface coating on 3D printed ABS specimens with the mentioned properties. 3D printed specimens were fabricated using Flash Forge 3D printer without any modifications, and the hydrophobic coatings were achieved by dip coating process using Tricalcium phosphate-chitin solutions with a ratio of 70:30. Static contact angle measurement was employedin gaging wettability impact on dip coated 3D printed specimens. By using digital vernier calipers and profilometer (SJ410), dimensional accuracy and surface roughness were assessed pre and post-coating. According to ASTM D570-98, water absorption tests were conducted at different time intervals. Results of the experiment showed that the hydrophobic solutions had been successfully synthesized. The maximum contact angle was achieved for solution 1(4g of tricalcium phosphate solution with 0.3g chitin solution) i.e., 109.3°. Improvement in the textureof 3D printed ABS surfaceswasobserved after dip coating. Dip-coated 3D printed ABS specimens exhibited minimal absorption based on their weight gain per area

Effect of Supplementation of Milk Dhara on Milk Yield and Milk Composition in Graded Murrah Buffaloes

The experiment was carried out to study the effect of feeding Milk Dhara supplement on milk yield and composition in lactating buffaloes. Twelve multiparous (2nd/3rd lactation) graded Murrah buffaloes (450 ± 25 kg) in mid lactation (3-4 months) were divided into two groups of six animals each (control and treatment). Animals in both the groups received a basal diet comprising of Hybrid Napier, paddy straw and concentrates while the buffaloes in the treatment group were fed same basal diet plus Milk Dhara (M/S Zydus AHL, Ahmedabad) containing rumen stable bypass fat and protein at 100 g/buffalo/day. Results revealed that milk yield (kg/d), 6% FCM yield (kg/d) and all milk constituents except SNF % increased significantly with addition of supplement containing rumen bypass fat and protein in the diet. Thus, it can be concluded that supplementation of Milk Dhara at 100g/buffalo/day improved milk yield and milk composition in graded Murrah buffaloes

Effect of Partial Replacement of De-oiled Rice Bran with Red Chilli Cap Powder in Concentrate Mixtures on Nutrient Utilization in Buffalo Bulls

A metabolism trial was conducted after 45 days of feeding using twelve graded Murrah buffalo bulls (301.96 ± 6.98 kg) to study the effect of incorporation of red chili cap powder (RCP) in the concentrate mixture on intake and digestibility of nutrients. The buffalo bulls in the control group were fed a basal diet comprising of 5 kg chopped green fodder, 4 kg paddy straw and 1.5 kg concentrate mixture while those in treatment group were fed the same basal diet except that 25 per cent of protein supplied by de-oiled rice bran (DORB) in the concentrate mixture is replaced with RCP. The DMI (kg / 100 kg BW) was similar between the two groups. The average digestibility coefficients of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), crude fibre (CF), nitrogen free extract (NFE), neutral detergent fibre (NDF), acid detergent fibre (ADF), cellulose and hemi-cellulose decreased (P>0.05) with incorporation of RCP in the concentrate mixture of buffalo bulls as compared with the control. The % DCP and TDN contents decreased (P>0.05) with incorporation of RCP in the concentrate mixture as compared to the control. It can be concluded that RCP could replaced about 25 per cent of the protein supplied by DORB in the concentrate mixture of graded Murrah buffalo bulls for maintenance without any adverse effects

A REVIEW ON BASE DRAG REDUCTION METHODS

In this project-based learning we are going to know about how the base drag are acting on an object to automobile and aircrafts and it deals with the equations of the drag in fluid dynamics and aerodynamics, and we come to know that what steps are we going to follow how to overcome the drag in vehicles. Reducing base drag of two dimensional and axisymmetric bodies having a blunt base. These methods include splitter plates, both thin and thick, splitter wedges, base bleed. boat-tailing and various types of serrated trailing edges. These methods include splitter plates, both thin and thick, splitter wedges, base bleed, boat-tailing and various types of serrated trailing edges. The effectiveness of the various devices in reducing base drag is shown and compared. In some cases, their influence on the lift of an airfoil is also indicated. Axisymmetric bodies, e.g., missiles, often have a blunt base. The corresponding base drag usually is an appreciable part of the total drag and, if the base drag is not reduced by suitable means, can remarkably reduce the overall performance of the system. Under most circumstances it is desirable to have as small a base drag as possible. Therefore, during the last 25 years many methods for reducing base drag have been developed. Often the periodic lift forces inducing vibrations also decrease if the base drag is reduced. By making CFD analysis also we can predefine the drag on the airfoil and automobile. There are various drag reduction method existing in the present world of transport vehicles and airplane. In general, the dynamics of the system subjected to both internal and external flow concurrently is similar to that with just one of the two flows. It would be of practical importance if it were possible to determine an equivalent flow which would have the same dynamical effect on a given beam as the two flows simultaneously

Cystic lymphangioma of the breast in an infant successfully managed with intralesional bleomycin: a case report with relevant review of the literature

Cystic hygromas, also known as lymphangiomas, are unusual congenital malformations of the lymphatic system and commonly involve the head and neck region or axilla. Involvement of other sites such as breasts is very rare. The preferred mode of treatment for lymphangioma of the breast in adults or children is surgery. We report a case of breast lymphangioma in a 3-month-old male child, which was managed successfully by intralesional bleomycin.Keywords: breast, bleomycin, intralesional sclerosing agent, macrocystic lymphangiom

In situ Degradation Kinetics of Crop Residue Based Complete Rations in Murrah Buffalo Bulls

The present investigation was carried out to determine the in situ degradation kinetics of crop residue based complete rations using Nylon bag technique. Three iso-nitrogenous complete rations comprising of maize stover (T1), red gram straw (T2) or black gram straw (T3) and concentrate in 60: 40 proportion were prepared and evaluated for their rumen degradable DM, CP, NDF and ADF content using three adult male graded Murrah buffalo bulls (350 ± 9.36 kg) fitted with permanent rumen cannula. The slowly degradable fraction (b) of DM, CP, NDF (P<0.01) and ADF (P<0.05) and potential degradability (a+b) of DM, NDF, ADF (P<0.01) and CP (P<0.05) were higher in maize stover based complete ration (T1) when compared to others. The coefficients of effective degradability (ED) of CP, NDF (P<0.05) and ADF (P<0.01) were higher in T1 compared to other complete rations. However, the ED (%) of DM was higher in T1 compared to other rations but the differences were not statistically significant. Hence, it is concluded that maize stover based complete ration was better utilized in sacco in terms of protein and fibre as compared to other crop residue based complete rations

Pitting Corrosion in AA7075 Friction Stir Welds on Minor Additions of Silver

AA7075 is extensively used in aerospace, defense, automotive applications because of its high strength to weight ratio. Issues related to fusion welding and corrosion resistance are key problems associated with these alloys. Friction stir welding is an alternative welding technique that overcomes problems associated with fusion welding. In the present investigation, preliminary studies were done on pitting corrosion behavior of AA7075 friction stir welds by adding silver along the weld joint line. Silver paste was applied along the longitudinal direction of AA7075-T6 rolled plates of 6-mm thickness and cured at 130 °C for 30 seconds. Weld joints were prepared at two different tools rotational speeds, i.e., 750 rpm and 1000 rpm, while keeping other parameters fixed. Welded joints were cut as per the required sizes to study the hardness, microstructure, and pitting corrosion resistance in various regions. It was observed that the hardness was not much affected, but pitting corrosion resistance substantially improved by trace addition of silver. In the stir zone and the thermo-mechanically affected zone, onion ring type marks were observed. Grain refinement in the stirred zone (SZ) was higher at 750 rpm compared to 1000 rpm. The increased hardness in the welds was due to grain refinement. All the observed results were correlated with microstructural features as evidenced by optical microscopy

Therapeutic Considerations for Docetaxel and Paclitaxel in Metastatic Breast Cancer

Breast cancer is the main source of death among women. Currently, 77% of women diagnosed with breast cancer are age 50 and older; however, it is projected that approximately 66% of the new cases diagnosed will occur in women younger than 65. Several clinical trials have assessed the wellbeing and adequacy of taxanes along with their tolerability in patients with metastatic cancer (MBC) The overview of these Paclitaxel and Docetaxel, the mechanism of action, pharmacokinetics and pharmacodynamics, dose and administration, adverse effects, clinical potency, and sufferable profiles combination therapies, the pathological complete response of these taxanes are included. The different novel formulations of taxanes are formulated from nanoparticles, polyglutamate, liposomes to improve the wellbeing and adequacy taxanes to reduce their toxicities. Single-agent research located with docetaxel and paclitaxel in metastatic breast most cancers show clinically huge antitumor motion even in the advanced stage, heavily pretreated, safe, as properly as in refractory diseases. This action is likewise clear with taxane-based combination regimens. Serious hematologic and nonhematologic toxicities are incompatible, with different toxicities noted dependent on the portion and weekly regimen selected.  Weekly docetaxel and paclitaxel regimens speak to important helpful treatment options for women suffering from metastatic breast cancer and have entered assessment as a major aspect of adjuvant treatment for this disease Toxicity associated with taxanes chemotherapy are based totally on the dose schedules and weekly regimen selected and the most frequent toxicities related with these marketers include myalgia, peripheral neuropathy, neutropenia, etc Docetaxel retains in tumor cells for longer duration when compared to paclitaxel because of its slow efflux and large amounts of uptake into the cell which explains its more benefits when compared to paclitaxel. Clinical studies conducted so far suggested a more benefit to risk ratio for docetaxel when compared to paclitaxel. This article reviews mainly different actions exhibited by taxanes in the therapy of metastatic breast cancer and others on stages of cancer along with the toxicities associated with these agents. &nbsp

Identification of Novel QTLs for BPH Tolerance in Rice Using Resistant Donor BM 71

Rice is the most widely grown crop in the world, feeding half of the world’s population. Brown plant hopper (BPH) is a considerable risk to rice fields carrying 20-90% yield losses. Hopper burn can be effectively managed by the recognition and use of BPH genes. Marker based genetic analysis of 136 RILcollected from a high yielding susceptible variety, MTU 3626 and BM 71, a BPH donor developed at RARS, identified 3 minor novel QTLs viz; qmbph2.1,qmbph4.1 and qmbph12.1 on chromosomes 2, 4 and 12 and two other QTLson chromosome 5 and 7, namelyqmbph5.1 and qmbph7.1. The phenotyping of RIL’s revealed that ten RIL’s (2711 – 31, 2711 – 37, 2711 – 50, 2711 – 69, 2711 – 84, 2711 – 88, 2711 – 94, 2711 – 100, 2711 – 168 and 2711 – 191) recorded yields comparable to checks, Swarna and Pushyami along with BPH score similar to donor. The BPH resistance lines recognised will be further evaluated, and the confirmed lines can be employed in rice breeding programs