Service Exchange or Major Overhaul. Which Philosophy to Implement for Gas Turbine

Maintenance costs and machine availability are two of the most important concerns to gas turbine equipment owner. Therefore, a well thought out maintenance program that reduces costs while increasing equipment availability should be instituted. The correct implementation of planned maintenance relying on preventive maintenance optimization through perfect inspection frequency and scope provides direct benefits in the avoidance of forced outages, unscheduled repairs, and downtime. Major overhaul is carried out for each gas turbine every 48,000 firing hours which costs around 1 M USD for each engine and with more than 8 months unavailability for the unit. To increase equipment availability and enhance cost and time efficiency, alternatives approaches were evaluated including Service Exchange of gas turbines. It is found that service exchange is the best option for optimizing time and cost of overhaul of such engines. This paper is written to improve Major Overhaul practice for existing Gas Turbines from ongoing practice of routine major overhaul including engine strip down, inspection and repair to Service Exchange of Gas Generator and Power Turbine every 48,000 firing hours.

CP-violating transport theory for electroweak baryogenesis with thermal corrections

We derive CP-violating transport equations for fermions for electroweak baryogenesis from the CTP-formalism including thermal corrections at the one-loop level. We consider both the VEV-insertion approximation (VIA) and the semiclassical (SC) formalism. We show that the VIA-method is based on an assumption that leads to an ill-defined source term containing a pinch singularity, whose regularisation by thermal effects leads to ambiguities including spurious ultraviolet and infrared divergences. We then carefully review the derivation of the semiclassical formalism and extend it to include thermal corrections. We present the semiclassical Boltzmann equations for thermal WKB-quasiparticles with source terms up to the second order in gradients that contain both dispersive and finite width corrections. We also show that the SC-method reproduces the current divergence equations and that a correct implementation of the Fick's law captures the semiclassical source term even with conserved total current ∂μ j μ = 0. Our results show that the VIA-source term is not just ambiguous, but that it does not exist. Finally, we show that the collisional source terms reported earlier in the semiclassical literature are also spurious, and vanish in a consistent calculation.

IMPLEMENTATION OF ENDOSCOPIC DEVICE STERILIZATION IN CARDIAC SURGERY AT CARDIOLOGY CENTER, E HOSPITAL IN 2021

A cross-sectional study combining quantitative and qualitative approach, was carried out at the Cardiolgoy center of E Hospital in 2021. The study aimed to describe the current situation and analyze some factors affecting the performance of endoscopic device sterilization in cardiac surgery. The study conducted 150 times of observation of endoscopic device sterilization in cardiac surgery. The main findings showed that the rate of correct implementation of cleaning and disinfecting devices was 79.3% and sterilization was 87.3% at the department of infectious disease and control. Some influencing factors indicated that training for health staffs; supervision of the implementation; having appropriate reward and punishment mechanisms would contribute to improve of adherence to and properly implementation of endoscopic device sterilization in cardiac surgery.

Investigating the Effects of E-Learning as a Method of Curriculum Dissemination for Rural TVET College Students

The study investigates the effects of e-learning as an alternative form of curriculum dissemination for rural Technical and Vocational Education and Training (TVET) college students. This study adopted connectivism theory, which enabled lecturers to reflect and adapt to how learning has changed and the accompanying implications of designing the spaces and structures to the current mode of learning. The researcher made use of two research methods to gather data; phone interviews and questionnaires. The data was analyzed using thematic analysis and the Statistical Package for Social Sciences (SPSS) Version 20.0, Office Word format. The results indicated that the unavailability of technological resources, lack of financial support from single parents’ side due to socio-economic factors, and child-headed families hinder the correct implementation of e-learning and make it difficult to reach its objectives.

IMPLICAÇÃO DE ANÁLISES TRIBOLÓGICAS NA REALIZAÇÃO DA MANUTENÇÃO PREDITIVA

In predictive maintenance, interventions are dependent on information from the monitoring of parameters, their main advantage is the reduction of periodic stops, increasing the time of availability of equipment and decreasing costs. Subjects such as wear, lubrication and surfaces with relative movement are studied by tribology. The purpose of this article was to investigate the relationship between tribology and predictive maintenance. The basis for scientific foundation was bibliographic research in studies by different authors. Thus, it is concluded that tribology has significant relevance in performing predictive maintenance, especially in view of the analysis of lubricating oil and wear of particles. These analyzes and correct implementation were considered, being a fundamental point for companies that seek to increase their competitiveness. However, scarcity was observed in practical case studies, which demonstrates that the relationship between maintenance and tribological factors needs to be studied more deeply.

Assessment of reporting quality in randomised controlled clinical trial abstracts of dental implantology published from 2014 to 2016

ObjectivesAccess to full texts of randomised controlled clinical trials (RCTs) is often limited, so brief summaries of studies play a pivotal role. In 2008, a checklist was provided to ensure the transparency and completeness of abstracts. The aim of this investigation was to estimate adherence to the reporting guidelines of the Consolidated Standards of Reporting Trials (CONSORT) criteria for abstracts (CONSORT-A) in RCT publications.Primary endpointAssessment according to the percentage of compliance with the 16 CONSORT-A criteria per study.Materials and methodsThis study is based on a full survey (212 RCT abstracts in dental implantology, PubMed search, publication period 2014–2016, 45 journals, median impact factor: 2.328). In addition to merely documenting ‘adherence’ to criteria, the authors also assessed the ‘complete implementation’ of the requested information where possible. The collection of data was performed independently by two dentists, and a final consensus was reached. The primary endpoint was evaluated by medians and quartiles. Additionally, a Poisson regression was conducted to detect influencing factors.ResultsA median of 50% (Q1–Q3: 44%–63%) was documented for the 16 criteria listed in the CONSORT-A statement. Nine of the 16 criteria were considered in fewer than 50% of the abstracts. ‘Correct implementation’ was achieved for a median of 43% (Q1–Q3: 31%–50%) of the criteria. An additional application of Poisson regression revealed that the number of words used had a locally significant impact on the number of reported CONSORT criteria for abstracts (incidence rate ratio 1.001, 95% CI 1.001 to 1.002).ConclusionTransparent and complete reporting in abstracts appears problematic. A limited word count seems to result in a reduction in necessary information. As current scientific knowledge is often not readily available in the form of publications, abstracts constitute the primary basis for decision making in clinical practice and research. This is why journals should refrain from limiting the number of words too strictly in order to facilitate comprehensive reporting in abstracts.

The Rasulullah's Way of Business: as the Best Example for Student

Doing business is one way to earn sustenance. As in a hadith Rasulullah PBUH states that ninety percent of sustenance lies in business, while the remaining ten percent is livestock. The point is that doing business will open nine doors to get wealth, while another door of sustenance is opened by breeding this shows how important business is in meeting the needs of human life, from the material side. Because ninety percent of the income obtained comes from business. A successful business cannot be separated from several things, one of which must be done based on trust, related to ethics, and related to profit. In practice, doing business according to Islamic law has been carried out by the Prophet Muhammad as a guide for Muslims, so that if a businessman does business according to the teachings of the Prophet, it is the same as carrying out the sunnah of the Prophet Muhammad. More and more entrepreneurs are implementing the behavior of the Prophet in their business, including customer-oriented by maintaining customer satisfaction, openness to customers by applying honest aspects of commerce, conducting healthy competition in the economic market, must pay attention to aspects of justice so that no party is oppressed. Feel disadvantaged when doing business. This study aims to determine the correct implementation of business based on the teachings of the Prophet Muhammad and examine the messages conveyed by the Prophet Muhammad on the aspect of muamalah. This research uses a descriptive qualitative research method with secondary data or library research. Islamic business behavior that is free of usury (interest), gharar (uncertainty), and maysir (gambling) is considered better because of the value requirements. Therefore, extracting the values ​​of Islamic economic philosophy through the business behavior of Muhammad SAW is expected to be a solution for today's business behavior.

Using Functional Communication Training to Reduce Problem Behavior

Functional communication training (FCT) is an evidence-based intervention that has been widely used and implemented to reduce problem behavior and teach replacement behavior in a variety of settings. Specific procedures have been researched and documented to ensure correct implementation. Functional communication training can be broken into three steps: (a) identifying the function of the problem behavior through a functional behavior assessment (FBA); (b) selecting an appropriate replacement communicative response; and (c) building new skill acquisition through teaching and rehearsal while using reinforcements and extinction.

Innovations in Social and Emotional Learning Research and Practice: Building from Evidence and Applying Behavioral Insights to the Design of a Social and Emotional Learning Intervention in Northeast Nigeria

Recent studies suggest that social and emotional learning (SEL) programming has the potential to be effective in conflict-affected regions, yet evidence is limited, and findings to date are mixed. One hypothesis about why SEL interventions in education in emergencies (EiE) settings have not generated the anticipated results is that the SEL content and materials have not been sufficiently localized to the context, leading to poor cultural relevance or fit. A second hypothesis is that SEL program demands tend to be high and capacity for implementation is low, undermining sustainability and impact. The current study addresses these challenges by investing in locally driven SEL content and design as a way to ensure that SEL materials are grounded in local values and needs, culturally appropriate, relevant to the specific context, and feasible to implement. The study draws on the developmental and prevention sciences as well as the field of behavioral insights to test evidence-based interventions intended to encourage desired behaviors around uptake and implementation. This paper documents the activities conducted during the project’s design phase, including landscape research, creation of initial prototypes, design workshops and rapid prototyping, and field testing. Findings suggest that using local values, practices, and framing in SEL programming increases relevance and appropriateness for the Northeast Nigeria setting. Furthermore, targeted behavioral insights interventions increased the uptake, habitual and regular use, as well as correct implementation of SEL activities. The findings contribute to the emerging literature on the cultural variability of SEL and the need to consider the context when designing and implementing programs in any setting.

Büntetőeljárás-jogi és kriminalisztikai alapgondolatok a felismerésre bemutatásról – Finkey Ferenc nyomán

Domestic and international research reveal the following fact: sometimes there are false identity parades behind justizmord cases. So, there is a crucial meaning of the legally and criminalistically correct implementation of the proofing act. In the light of this, the study examines its types, delimitation from confrontation, criteria, and tactical requirements.