Numerical Studies on Laser Welded Top-Hat Column under Axial Collision Based on the Concept of Super-Folding Element

Extruded longitudinal double-skinned aluminium body plates with integrated stiffeners are recently used for manufacturing in automobile industry like front rails and railway carriages. These extrusions provide light and heavy rigid structures. However, since it is not feasible to produce large parts by extrusion, these plates need to be connected, mostly by welding techniques. The crashworthiness performance of laser welded columns is evaluated using finite element (FE) analysis. This is very important in automobiles, since more attention is being paid to crashworthiness of the structures in recent years. The analysis method is based on the Superfolding Element (SE) concept, which originates from experimentally observed folding patterns of crushed shell elements. The FE model is used to predict accurately the progressive axial collapse of the lased welded columns and impact strength is greatly improved by laser welding technique

Empirical studies on the performance of banks: A systematic literature review for future research

This paper intends to review research on the performance of banks to identify gaps in the current body of knowledge to justify future research directions. We use a systematic literature review method and review 164 articles from refereed journals. Content analysis reveals that most of the studies are empirical focusing on two aspects i.e. financial performance and efficiency of banks. These studies consider the impact of particular events and contexts on performance and efficiency while testing research hypotheses. However, often there is a lack of a theoretical backing for these studies. We argue that the considered events and contexts affect the risk transformation process under the financial intermediation theory. The efficiency of banks reflects the risk transformation process and causes performance. On the other hand, traditional performance indicators were based on financial measures that do not reflect the components of the risk transformation process. A sound comprehensive risk-based composite measure is required to fill this gap

Analgesic use and potential hearing loss: a pharmacovigilance study

Background: Hearing loss is the most common sensory deficit in humans today. In India, as per WHO there are approximately 63 million people, who are suffering from significant auditory impairment and estimated prevalence at 6.3% in Indian population. The objective of the study was to determine the potential hearing loss in patients on analgesics.Methods: Prospective, observational study examined the association between analgesic use and potential hearing loss in 30 patients receiving NSAIDS. Data was collected using specialized designed case record form. The clinical signs like onset of tinnitus, appearance of another sound that didn't exist before, sinus infection or a respiratory illness, development of vertigo or spinning sensation were looked for. Audiometry test was advised for all the patients receiving analgesics.Results: Total of 30 patients were included in the study. Male predominance was noted Maximum patients were in the age group between 35-45 years (33.33%). The socioeconomic status was analyzed using revised kuppuswamy scale. 30% (n=09) of patients were in lower class. Majority of the patients were reported with road traffic accidents (n=19; 63.33%) and received analgesics for more than 2 weeks. Patients received different combination of NSAIDs among which aceclofenac was most commonly prescribed. 11 (36.66%) patients had hearing loss received either diclofenac or aceclofenac for more than 25 days.Conclusions: Regular usage of NSAIDS may increase the risk of hearing loss and the impact could be larger on younger individuals. Hence, extra precaution to be taken while prescribing NSAIDS

Effect of γ-Irradiation on Germination, Growth, Sensitivity and Survivability of Papaya cv. Kesar King

An experiment was laid out in a 4x2 factorial design, with 4 levels of γ-irradiation (0,5,10&15 Krad) and two dates of sowing (15th September and 15th October) on papaya cv. Kesar King. The results indicated that germination percentage, survival percentage and plant growth increased with the increased in γ-irradiation upto 10 Krad. Early sowing of seed (15th September) showed better germination (73%), survival (70%) and plant growth as compared to late sowing (15th October). Interaction between γ-irradiation of 10 Krad and early sowing of seed (15th September) was found superior to all the other treatment combinations to obtain optimum germination percentage, survival percentage and plant growth

Does the Vulnerable sun bear Helarctos malayanus damage crops and threaten people in oil palm plantations?

Largely as a result of the expansion of oil palm Elaeis guineensis, forest fragmentation has occurred on a large scale in Borneo. There is much concern about how forest-dependent species, such as the Vulnerable sun bear Helarctos malayanus, can persist in this landscape. The absence of sufficient natural food in forest fragments could drive sun bears into oil palm plantations, where they risk coming into conflict with people. We interviewed oil palm plantation workers and farmers in the Lower Kinabatangan region of Sabah, Malaysian Borneo, to ascertain if sun bears were utilizing plantations, if they were causing damage to the crop, and how the bears were perceived by people. To obtain a comparative baseline we extended these questions to include other species as well. We found that bears were rarely encountered in plantations and were not considered to be destructive to the oil palm crop, although they were generally feared. Other species, such as macaques Macaca spp., bearded pigs Sus barbatus, and elephants Elephas maximus, had more destructive feeding habits. Sun bears could use this readily available food resource without being targeted for retribution, although incidental human-related mortality remains a risk. Although bears could gain some nutritional benefit from oil palm, plantations do not provide the diversity of food and cover available in a natural forest

Discovery of Ranking Fraud for Mobile Apps Evidence Aggregation Based Ranking Fraud Detection (EA-RFD)

Ranking fraud within the mobile App market refers to dishonest or deceptive activities that have a purpose of bumping up the Apps within the quality list. Indeed, it becomes additional and additional frequent for App developers to use shady suggests that, like inflating their Apps? sales or posting phony App ratings, to commit ranking fraud. Whereas the importance of preventing ranking fraud has been well known, there's restricted understanding and analysis during this space. to the present finish, during this paper, we offer a holistic read of ranking fraud and propose a ranking fraud detection system for mobile Apps. Specifically, we tend to 1st propose to accurately find the ranking fraud by mining the active periods, specifically leading sessions, of mobile Apps. Such leading sessions will be leveraged for detective work the native anomaly rather than world anomaly of App rankings. Moreover, we tend to investigate 3 forms of evidences, i.e., ranking based mostly evidences, rating {based based mostly primarily based mostly} evidences and review based evidences, by modeling Apps? ranking, rating and review behaviors through applied mathematics hypotheses tests. Additionally, we tend to propose AN optimization based mostly aggregation methodology to integrate all the evidences for fraud detection. Finally, we tend to evaluate the projected system with real-world App knowledge collected from the iOS App Store for an extended fundamental measure. Within the experiments, we tend to validate the effectiveness of the projected system, and show the quantifiability of the detection algorithmic program furthermore as some regularity of ranking fraud activities

Complex foot deformity and Illizarov technique: a record-based study

Background: Complex foot deformities may occur as a result of trauma, poliomyelitis, osteomyelitis, burn contractures, neuromuscular diseases or may present as a resistant congenital contracture such as clubfoot. The Ilizarov fixator is new and more efficient method in the treatment of orthopedic foot problems. The aim of the study was to assess the outcome of Illizarov technique.Methods: This is a hospital record-based study conducted in 32 patients of foot deformity at orthopedic ward of Navodaya Medical college and Hospital, Raichur.  The record- based data was collected in January to July 2019. Data analysis done with SPSS 24.0 version IBM USA.Results: Majority of the subjects were from 0 to 5 years age group i.e. 14 (43.8%). Mean age was 26.2±4.9 years. Majority in our study were males i.e. 71.9%. In majority of the cases, the cause of foot deformity was neglected and relapsed club foot i.e. 12 (37.5%). Treatment period was 22±7 weeks.   Conclusions: The Ilizarov method can successfully correct complex foot deformities. Success rate was 90.6%

Polyphenols, Flavonoids, Mineral Elements, and Biological Activities of Ginger and Cinnamon Essential Oil and Extracts as Regulated by Their Isolation Procedures

Our research compared the chemical make-up of wild Ginger and cinnamon, including their essential oils (EOs), total phenol, and total flavonoid, for their antioxidant and antibacterial effects in vitro. The mineral (nutritional and poisonous) components of the plant were also identified in this investigation. Hydro distillation (HD), steam distillation (SD), and microwave-assisted distillation (MAD) were used to extract the EOs, and gas chromatography with flame ionization detection (GC-FID) and mass spectrometry detection (GC-MS) were used to examine them. 2,2-diphenyl-1-picrylhydrazyl (DPPH) was used to evaluate the EOs' antioxidant properties. The essential oil was analyzed, and twenty-six components were found to make up 97.73% of the oil with a yield of 0.202%. The primary components were pulegone (74.81%), menthone (13.01%) and piperitone (3.82%). Neutron activation analysis (INAA) and inductively coupled plasma optical emission spectrometry (ICP-OES) were used to detect twenty-one elements, including macro- and micro-elements (Ba, Br, Ca, Cl, Co, Cr, Cs, Eu, Fe, K, Mg, Mn, Mo, Na, Rb, Sb, Sc, Sr, Th, U, and Zn), with the mineral element concentration being very close to the FAO recommendation

Classical Euclidean wormhole solutions in Palatini f(R~)f(\tilde{R}) cosmology

We study the classical Euclidean wormholes in the context of extended theories of gravity. With no loss of generality, we use the dynamical equivalence between $f(\tilde{R})$ gravity and scalar-tensor theories to construct a point-like Lagrangian in the flat FRW space time. We first show the dynamical equivalence between Palatini $f(\tilde{R})$ gravity and the Brans-Dicke theory with self-interacting potential, and then show the dynamical equivalence between the Brans-Dicke theory with self-interacting potential and the minimally coupled O'Hanlon theory. We show the existence of new Euclidean wormhole solutions for this O'Hanlon theory and, for an special case, find out the corresponding form of $f(\tilde{R})$ having wormhole solution. For small values of the Ricci scalar, this $f(\tilde{R})$ is in agreement with the wormhole solution obtained for higher order gravity theory $\tilde{R}+\epsilon \tilde{R}^2,\epsilon<0$.Comment: 11 page