534 research outputs found
Security System for Industrial Gate And Generation of Gate Pass
This paper gives description of face recognition system which automatically identifies and/or verifies the identity of a person from digital images. The basic flow of system is the image is captured by camera. The PCA algorithm detects the face and extracts its features. After the extraction, system compares the captured images with data base images. When the system found the person to be authorized then the system opens the gate automatically. But if the person is unauthorized then the system does not allow to entering in the industrial campus as well as it will generate the gate pass for the person
Perspectives in quality: designing the WHO Surgical Safety Checklist
The World Health Organization's Patient Safety Programme created an initiative to improve the safety of surgery around the world. In order to accomplish this goal the programme team developed a checklist with items that could and, if at all possible, should be practised in all settings where surgery takes place. There is little guidance in the literature regarding methods for creating a medical checklist. The airline industry, however, has more than 70 years of experience in developing and using checklists. The authors of the WHO Surgical Safety Checklist drew lessons from the aviation experience to create a safety tool that supports essential clinical practice. In order to inform the methodology for development of future checklists in health care, we review how we applied lessons learned from the aviation experience in checklist development to the development of the Surgical Safety Checklist and also discuss the differences that exist between aviation and medicine that impact the use of checklists in health car
Performance Assessment of Petrol Engines with Hydrogen as an Alternative Fuel
Received: 7 November 2023. Revised: 17 January 2024. Accepted: 21 May 2024. Available online: 30 June 2024.This research focused on reducing emissions from petrol engines to mitigate greenhouse gases. Experiments aimed to decrease pollutants from petrol engines and enhance efficiency at full load using hydrogen as a secondary fuel, injecting it for 2 milliseconds and 2.5 milliseconds. The study comprised two phases: one using petrol alone at all loads, and the other combining petrol with hydrogen injections at 216 gm/hour and 270 gm/hour. Performance, pollutants, brake, and mechanical efficiencies were compared between phases. Efficiency gradually improved with load for the 2ms injection. Efficiency improved in all timing cases with hydrogen compared to running on petrol alone. The highest efficiencies occurred with 2.5ms hydrogen injection, reducing pollutants at full load, making it the optimal interval. Injecting hydrogen in petrol engines improves efficiency by reducing emissions. Injecting hydrogen at 270 gm/hour at full load increased brake and indicated thermal efficiency by 9%, with no change in mechanical efficiency compared to pure petrol, which was slightly higher. Emissions of NO, CO2, and HC were reduced by 16.5%, 15%, and 17.2% respectively. Oxygen percentage by volume increased by 10.43%, supporting complete combustion
A Good Death?
This paper offers some personal reflections on the idea of ‘a good death’, a theme in the writing of philosophers since classical times. The hospice movement has made immense progress in creating conditions in which we can ‘die better’. But such experiences are still the exception rather than the rule. The psychological challenge is how to relate to the dying as they are dying, and how as we die we relate to the living. I reflect on my own experience of my father’s death, and a moment of fleeting but genuine contact between us. Atul Gawande’s idea of the ‘hard conversations’ we must learn to have as we approach death are enlightening. Ultimately I argue, we die alone, and how we are, or are not, ‘held in mind’ as we approach death may be an index of the nearest we can approach to the idea of an ‘afterlife’
Mindfulness and Behavior Change
Initiating and maintaining behavior change is key to the prevention and treatment of most preventable chronic medical and psychiatric illnesses. The cultivation of mindfulness, involving acceptance and nonjudgment of present-moment experience, often results in transformative health behavior change. Neural systems involved in motivation and learning have an important role to play. A theoretical model of mindfulness that integrates these mechanisms with the cognitive, emotional, and self-related processes commonly described, while applying an integrated model to health behavior change, is needed. This integrative review (1) defines mindfulness and describes the mindfulness-based intervention movement, (2) synthesizes the neuroscience of mindfulness and integrates motivation and learning mechanisms within a mindful self-regulation model for understanding the complex effects of mindfulness on behavior change, and (3) synthesizes current clinical research evaluating the effects of mindfulness-based interventions targeting health behaviors relevant to psychiatric care. The review provides insight into the limitations of current research and proposes potential mechanisms to be tested in future research and targeted in clinical practice to enhance the impact of mindfulness on behavior change
Interface engineering of SRu-mC(3)N(4) heterostructures for enhanced electrochemical hydrazine oxidation reactions
Hydrazine oxidation in single-atom catalysts (SACs) could exploit the efficiency of metal atom utilization, which is a substitution for noble metal-based electrolysers that results in reduced overall cost. A well-established ruthenium single atom over mesoporous carbon nitride (SRu-mC(3)N(4)) catalyst is explored for the electro-oxidation of hydrazine as one of the model reactions for direct fuel cell reactions. The electrochemical activity observed with linear sweep voltammetry (LSV) confirmed that SRu-mC(3)N(4) shows an ultra-low onset potential of 0.88 V vs. RHE, and with a current density of 10 mA/cm(2) the observed potential was 1.19 V vs. RHE, compared with mesoporous carbon nitride (mC(3)N(4)) (1.77 V vs. RHE). Electrochemical impedance spectroscopy (EIS) and chronoamperometry (i-t) studies on SRu-mC(3)N(4) show a smaller charge-transfer resistance (R-Ct) of 2950 omega and long-term potential, as well as current stability of 50 h and 20 mA/cm(2), respectively. Herein, an efficient and enhanced activity toward HzOR was demonstrated on SRu-mC(3)N(4) from its synergistic platform over highly porous C3N4, possessing large and independent active sites, and improving the subsequent large-scale reaction.Web of Science1212art. no. 156
EMMIE and engineering: What works as evidence to improve decisions?
While written by a proponent of realism, this article argues in favour of a pragmatic approach to evaluation. It argues that multiple sources of evidence collected using diverse research methods can be useful in conducting informative evaluations of programmes, practices and policies. It argues in particular that methods, even if their assumptions appear incommensurable with one another, should be chosen to meet the evidence needs of decision-makers. These evidence needs are captured in the acronym, EMMIE, which refers to Effect size, Mechanism, Moderator (or context), Implementation and Economic impact. Finally the article questions evidence hierarchies that are inspired by clinical trials, and suggests instead that, notwithstanding the clear differences in the physical and social worlds, engineering may provide a superior model for evaluators to try to emulate. And engineering is, above all, a pragmatic field
Recommended from our members
Size and distribution of the global volume of surgery in 2012
Abstract Objective: To estimate global surgical volume in 2012 and compare it with estimates from 2004. Methods: For the 194 Member States of the World Health Organization, we searched PubMed for studies and contacted key informants for reports on surgical volumes between 2005 and 2012. We obtained data on population and total health expenditure per capita for 2012 and categorized Member States as very-low, low, middle and high expenditure. Data on caesarean delivery were obtained from validated statistical reports. For Member States without recorded surgical data, we estimated volumes by multiple imputation using data on total health expenditure. We estimated caesarean deliveries as a proportion of all surgery. Findings: We identified 66 Member States reporting surgical data. We estimated that 312.9 million operations (95% confidence interval, CI: 266.2–359.5) took place in 2012, an increase from the 2004 estimate of 226.4 million operations. Only 6.3% (95% CI: 1.7–22.9) and 23.1% (95% CI: 14.8–36.7) of operations took place in very-low- and low-expenditure Member States representing 36.8% (2573 million people) and 34.2% (2393 million people) of the global population of 7001 million people, respectively. Caesarean deliveries comprised 29.6% (5.8/19.6 million operations; 95% CI: 9.7–91.7) of the total surgical volume in very-low-expenditure Member States, but only 2.7% (5.1/187.0 million operations; 95% CI: 2.2–3.4) in high-expenditure Member States. Conclusion: Surgical volume is large and growing, with caesarean delivery comprising nearly a third of operations in most resource-poor settings. Nonetheless, there remains disparity in the provision of surgical services globally
- …