A distributed parallel alarm management strategy for alarm reduction in chemical plants

2015 ◽  
Vol 34 ◽  
pp. 117-125 ◽  
Author(s):  
Dewen Li ◽  
Jinghong Hu ◽  
Hao Wang ◽  
Wenjun Huang
2014 ◽  
Vol 30 ◽  
pp. 207-218 ◽  
Author(s):  
Jianfeng Zhu ◽  
Yidan Shu ◽  
Jinsong Zhao ◽  
Fan Yang

2021 ◽  
Author(s):  
Aaron Conway ◽  
Carla Jungquist ◽  
Kristina Chang ◽  
Navpreet Kamboj ◽  
Joanna Sutherland ◽  
...  

BACKGROUND Capnography is commonly used for nurse-administered procedural sedation. Deciphering which capnography waveform abnormalities deserve intervention (and therefore alarms to signal the event to clinicians) from those that do not is an essential step towards successfully implementating this technology into practice. It is possible that capnography alarm management may be improved by using machine learning to create a ‘smart alarm’ that can alert clinicians for apneic events that are predicted to be prolonged. OBJECTIVE To determine the accuracy of machine learning models for predicting, at the 15-second time point, if apnea will be prolonged (defined as apnea that persisted for 30 seconds or more). METHODS A secondary analysis of an observational study was conducted. We selected several candidate models to evaluate, including a random forest model, generalized linear model (logistic regression), lasso regression, ridge regression and the XGBoost model. Out of sample accuracy of the models was calculated using 10-fold cross-validation. The net benefit decision analytic measure was used to assist with deciding whether using the models in practice would lead to better outcomes on average than the default capnography alarm management strategies currently in place. The default strategies are: 1) the aggressive approach, which involves triggering an alarm after brief periods of apnea (typically 15 seconds); and 2) the conservative approach, which involves triggering an alarm for only prolonged periods of apnea (typically 30 seconds). RESULTS A total of 384 apneas longer than 15 seconds were observed in 61 of the 102 patients who participated in the observational study. Nearly half of the apneas (n=180) were prolonged. The random forest had the best discrimination (AUROC 0.66) and calibration. Net benefit associated with the random forest model exceeded the aggressive alarm management strategy but was lower than the conservative alarm management strategy. CONCLUSIONS Decision curve analysis indicated that using a random forest model would lead to a better outcome for capnography alarm management compared to an aggressive strategy where alarms are triggered after 15 seconds of apnea. The model would not be superior to the conservative strategy, where alarms are only triggered after 30 seconds. CLINICALTRIAL n/a


Author(s):  
Sri Sugiyarti ◽  
Muhammad Iqbal Arrosyad

The charitable endeavors of Muhammadiyah in the Bangka Belitung Region in the field of education from the levels of Elementary Schools, Junior High Schools, and High Schools and Vocational High Schools are spread to all districts/cities. However, the discussion about Muhammadiyah education in Bangka Belitung is very minimal. This research is a descriptive study with a qualitative approach. This study took the sample of the oldest and best senior high school as an illustration of Muhammadiyah education management in Bangka Belitung. The results showed that Muhammadiyah Education experienced various obstacles to the threat of closure, however, they were able to rise from adversity. Muhammadiyah Pangkalpinang High School as the oldest school departed from a school that boarded at Muhammadiyah Middle School and later became one of the most popular schools in the era of the 1990s to accommodate students up to 18 classes, but later it fell free and was almost closed due to the lack of students. Several times the change of school principals has not improved, a new hope is obtained when the management of this school is submitted to the STKIP Muhammadiyah Bangka Belitung to become its lab school. Now with new facilities and management, the number of students is increasing, slowly but surely this school is starting to improve itself. Meanwhile, Muhammadiyah Toboali High School, South Bangka Regency, which was established in 1994, almost lost public confidence, due to a large number of students who failed the National Examination for the 2006/2007 school year. The situation changed along with Supiandi's leadership, his persistence in managing the school, and finally, the trust in the community returned. Now the number of students has reached nearly 500 students


2018 ◽  
Vol 2 (2) ◽  
pp. 104-111
Author(s):  
Po. Abas Sunarya ◽  
George Iwan Marantika ◽  
Adam Faturahman

Writing can mean lowering or describing graphic symbols that describe a languageunderstood by someone. For a researcher, management of research preparation is a veryimportant step because this step greatly determines the success or failure of all researchactivities. Before a person starts with research activities, he must make a written plan commonlyreferred to as the management of research data collection. In the process of collecting researchdata, of course we can do the management of questionnaires as well as the preparation ofinterview guidelines to disseminate and obtain accurate information. With the arrangement ofplanning and conducting interviews: the ethics of conducting interviews, the advantages anddisadvantages of interviews, the formulation of interview questions, the schedule of interviews,group and focus group interviews, interviews using recording devices, and interview bias.making a questionnaire must be designed with very good management by giving to theinformation needed, in accordance with the problem and all that does not cause problems at thestage of analysis and interpretation.


2019 ◽  
Vol 8 (02) ◽  
pp. 21
Author(s):  
Yuli Anwar

cash management strategy (cash management) in order to optimize the foundation fund civil insan prosper (yims) year 2004-2009. Cash management strategy (cash management) in order to optimize the funds on Madani Insan Sejahtera Foundation (Yims) include: revenue from the year 2004 amounting to Rp. 18,250,500.00 until 2009 to Rp. 559,454,000.00 or 300 times increase. Similarly, expenditure in the form of compensation, public health services, skills training, caring teachers and preachers, the economic empowerment of the ummah, qurban from 2004 amounting to Rp. 17,787,500.00 until 2009 to Rp. 559 005 100 is almost 300%. The channeling of funds up to 98% - 102% from 2004 to 2009. The remaining funds are used for operational reserves the foundation. The Foundation expects an increase in revenue from activities that are funded in accordance mission of the foundation is: (1) to provide services to the community through empowerment programs that integrate educational programs, health, economy and skills. (2) Being a liaison between the haves with the community through the distribution of funds can not afford the social, charity, infaq, shodaqoh and humanitarian funds. (3) Establish partnerships with both private institutions, government or other social institutions in reducing social problems in the community. Keywords : cash management 


Author(s):  
Bryan Howell ◽  
Curt Anderson ◽  
Nile Hatch ◽  
Chia-Chi TENG; ◽  
Neal Bangerter ◽  
...  

Over that last few decades there has been a significant rise in interest for design-led entrepreneurship and innovation. This has brought about the need to expand on the principles and methods of human-centred design by incorporating knowledge from multiple disciplines, such as management, business, and entrepreneurship studies. This expansion aids designers, engineers, and marketing practitioners who strive to create innovative, meaningful and relevant services, business models and experiences. More often than not, ventures operate under very limited resources, and practitioners are often required to fulfil several roles. The concept of ‘multidisciplinary teams’ widely spread in this sphere often bears little resonance in these contexts. Designers possess valuable competencies that can have a significant impact on the venture, especially driving user and context-centred strategy and processes for the introduction, legitimization and scaling-up stages. However, engaging with these areas of practice requires skills and capacities that overlap traditional disciplinary roles. In doing so, the boundaries between design and engineering, branding and communications, cultural and behavioural insight, marketing and management strategy are blurred. As educators in design innovation, how do we explore, define and balance interdisciplinary relationships between design, engineering, management, business and entrepreneurship theories, methods, language and models of education? The purpose of the entrepreneurship in design education track is to discuss methods, models, case studies, research, insights and unexpected knowledge in benefits and limitations of design entrepreneurship education. In particular, the three papers presented in this track demonstrate different approaches to entrepreneurship and design education.


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