PENGEMBANGAN SENSOR PARKIR BERBASIS ARDUINO DAN RFID PADA LAHAN PARKIR KENDARAAN RODA 2 POLITEKNIK NEGERI KUPANG

Pengembangan sistem parkir pintar berbasis Arduino dan RFId ini dibuat untuk memberikan solusi masalah pengaturan parkir kendaraan roda 2 di Gedung Auditorium Politeknik Negeri Kupang dan mekanisme pengaturannya yang masih konvensional sehingga memaksimalkan lahan parkir yang tersedia. Sistem bekerja secara otomatis, membaca blok parkir yang kosong dan mengijinkan akses kendaraan roda 2. Sistem dikembangkan menggunakan Arduino Mega sebagai central processing secara optimal bersama beberapa modul sensor yaitu RFId, photodioda dan LCD 16x2 untuk menampilkan informasi. Dengan metode perancangan, sistem parkir pintar RFId dikembangkan melalui 2 tahapan, yaitu merancang interkoneksi komponen perangkat keras sistem dan melakukan pemograman untuk menjalankan perangkat keras. Cara kerja sistem dimulai ketika sensor cahaya membaca blok parkir menggunakan sensor cahaya dan memberikan informasi melalui display LCD 16x2 tentang ada atau tidaknya blok parkir yang kosong. Jika ada, maka akses masuk kendaraan diberikan ketika identifikasi RFId diterima. Jika tidak, maka akses masuk tidak diberikan. Seluruh proses masuk dan keluar diuji dengan metode 0 1 pada 4 blok parkir. Hasil pengujian menunjukkan bahwa sensor RFId memberikan akses hanya jika salah satu atau lebih blok parkir masih kosong dan tidak memberi akses ketika seluruh blok parkir penuh (1 1 1 1 ). Kata kunci: Sensor Parkir, RFId, Arduino, ATMEGA32

Cost of energy for offshore wind turbines with different drive train types

Drive train configurations differ in many of the modern MW scale wind turbines available. These differences occur from manufacturer to manufacturer and even within a single manufactures own portfolio. The wind energy industry aims to reduce the cost of ene rgy (CoE) for offshore wind turbines to make it cost competitive with ot her forms of energy generation (gas, coal, onshore wind etc.) This paper aims to assist with t hat CoE reduction by modelling four wind turbine types with different drive trains to dete rmine which turbine type offers the lowest CoE

COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study

Background: The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms. Methods: International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms. Results: ‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P < 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country. Interpretation: This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men

Impact of construction-related rework on selected Ugandan public projects

Purpose The purpose of this paper was to assess the magnitude of the impact of construction-related rework on selected project budgets and schedule in public building construction in Uganda. The magnitude of construction-related rework was the mean determined over construction contracts under a selected project and expressed as a percentage of the construction contract sum. Design/methodology/approachA single case multi-unit study approach was adopted. A case study protocol was prepared that included a checklist, observation schedules and an interview guide. The three instruments were used to collect data from building contractors and end-users (the teaching staff and medical assistants). Representatives of the client entity and the end-users provided sufficient project documentation and related supplementary information for the study. FindingsConstruction-related rework was predominantly attributable to design information omissions, unacceptable workmanship and inadequate supervision of the contractor. Lightning conductor, electrical and roofing installations were the building elements that had the highest frequency of rework. It was further determined that the mean percentage of rework related impact on project budget and schedule was approximately 4.53 and 8.42 per cent, respectively. Originality/valueThe findings inform policy makers about likely areas that contribute to significant wastage and value loss in quality management of public sector projects. The research advocates for improved data collection protocols, integration of adequate design management and a whole life value philosophy during the public building construction process

Fetal umbilical artery Doppler pulsatility index and childhood neurocognitive outcome at 12 years

OBJECTIVE: To determine whether an elevated fetal umbilical artery Doppler (UAD) pulsatility index (PI) at 28 weeks’ gestation, in the absence of fetal growth restriction (FGR) and prematurity, is associated with adverse neurocognitive outcome in children aged 12 years. METHODS: Prospective cohort study, comparing children with a normal fetal UAD PI (<90th centile) (n=110) and those with an elevated PI (≥90th centile) (n=40). UAD was performed at 28, 32 and 34 weeks gestation. At 12 years of age, all children were assessed under standardised conditions at Queen's University, Belfast, UK to determine cognitive and behavioural outcomes using the British Ability Score-II and Achenbach Child Behavioural Checklist Parent Rated Version under standardised conditions. Regression analysis was performed, controlling for confounders such as gender, socioeconomic status and age at assessment. RESULTS: The mean age of follow-up was 12.4 years (±0.5 SD) with 44% of children male (n=63). When UAD was assessed at 28 weeks, the elevated fetal UAD group had lower scores in cognitive assessments of information processing and memory. Parameters included (1) recall of objects immediate verbal (p=0.002), (2) delayed verbal (p=0.008) and (3) recall of objects immediate spatial (p=0.0016). There were no significant differences between the Doppler groups at 32 or 34 weeks' gestation. CONCLUSIONS: An elevated UAD PI at 28 weeks' gestation in the absence of FGR or prematurity is associated with lower scores of declarative memory in children aged 12 years. A potential explanation for this is an element of placental insufficiency in the presence of the appropriately grown fetus, which affects the development of the fetal hippocampus and information processing and memory long-term. These findings, however, had no impact on overall academic ability, mental processing and reasoning or overall behavioural function

INTRAVENOUS PAMIDRONATE IS ASSOCIATED WITH REDUCED MORTALITY IN PATIENTS WITH CHRONIC CRITICAL ILLNESS.

OBJECTIVE: Chronic critical illness (CCI), characterized by prolonged mechanical ventilation and tracheostomy, commonly manifests with elevated bone resorption, which has previously been shown to abate after treatment with intravenous (IV) bisphosphonates. Our study assessed the impact of pamidronate administration on clinical outcomes in a CCI cohort. METHODS: A retrospective case series was performed on 148 patients admitted to The Mount Sinai Hospital Respiratory Care Unit (RCU) from 2009-2010. We identified patients with CCI who did (n = 30) or did not (n = 118) receive IV pamidronate (30 to 90 mg). Both groups included patients with normal and abnormal renal function. Pamidronate was administered for elevated urine or serum N-telopeptide, hypercalciuria, or hypercalcemia. RESULTS: RCU and 1-year mortality were significantly lower in the pamidronate group (0 and 20%, respectively) compared to nonreceivers (19 and 56%, respectively) (P = .0077 and P = .0004, respectively). After adjusting for differences in baseline creatinine, estimated glomerular filtration rate, and serum calcium, the association with reduced mortality remained significant at 1 year (P = .0132) and with borderline significance for RCU mortality (P = .0911). Creatinine was significantly lower 7 days following pamidronate administration (P = .0025), with no significant difference at 14 days compared to baseline. Pamidronate receivers showed a greater increase in albumin during the RCU stay (2.49 to 3.23 g/dL), compared to nonreceivers (2.43 to 2.64 g/dL) (P = .0007). Pamidronate administration was associated with a significantly reduced rate of hypoglycemia compared to RCU patients not receiving pamidronate (0.09 versus 0.12; P = .0071). CONCLUSION: Pamidronate use in a CCI population is associated with reduced mortality, lower hypoglycemia rates, improved albumin, and stable renal function. ABBREVIATIONS: BMI = body mass index CCI = chronic critical illness CI = confidence interval CKD = chronic kidney disease CTx = C-telopeptide eGFR = estimated glomerular filtration rate ICU = intensive care unit IV = intravenous NTx = N-telopeptide PMV = prolonged mechanical ventilation RCU = respiratory care unit