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PENGARUH MODIFIKASI SUDUT KELENGKUNGAN INTAKE MANIFOLD TERHADAP PERFORMA MESIN PADA MOTOR EMPAT LANGKAH WINARTO, EKO
Jurnal Teknik Mesin Vol 2, No 02 (2014): JTM : Volume 02 Nomor 02 Tahun 2014
Publisher : Jurnal Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Motor bakar merupakan suatu penggerak mula yaitu mesin yang menggunakan energi panas untuk melakukan kerja mekanik. Didalam silinder ini terjadi pembakaran antara bahan bakar dan udara, gas yang dibakar diruang bakar diharapkan mampu menggerakkan torak yang dihubungkan dengan poros engkol dalam penggunaan yang semakin berkembang berbagai usaha telah ditempuh untuk meningkatkan kinerja dari motor bakar terutama menyangkut daya mesin. Daya yang dihasilkan oleh suatu motor bakar tergantung dari pembakaran campuran bahan bakar dan udara. Untuk mendapatkan hasil pembakaran yang sempurna maka diperlukan suatu campuran bahan bakar dan udara yang homogen artinya tidak terlalu miskin ataupun terlalu kaya. Penelitian ini bertujuan untuk menaikan performa mesin dengan cara merubah sudut kelengkungan intake manifold yang dimana dapat memberikan efek aliran turbulen pada silinder. Jenis penelitian ini adalah eksperimen, obyek penelitian adalah motor Honda legenda tahun 2003. Intake manifold yang digunakan dalam penelitian ini adalah meliputi kelompok standar dengan sudut kelengkung 1800, kelompok eksperimen meliputi variasi 1 dengan sudut kelengkung kanan 1500, variasi 2  dengan sudut kelengkung kanan 1300, dan variasi 3 dengan sudut kelengkung kanan 1100. Analisa data dilakukan dengan metode deskriptif dengan memvariasikan rpm pada beban penuh (Full Open Throtle Valve) posisi transmisi top gear yang berpedoman pada standart ISO 1585 Road vehicles-engine test code-net power.  untuk mengetahui Torsi (T), Daya efektif (Ne) dan Tekanan efektif rata-rata (Bmep) pada motor bensin empat langkah. Data hasil penelitian yang diperoleh ditampilkan dalam bentuk grafik selanjutnya dideskripsikan dengan kalimat sederhana. Hasil yang diperoleh dalam penelitian ini menunjukkan bahwa perubahan intake manifold variasi dapat membentuk aliran menjadi turbulen, sehingga campuran bahan bakar dan udara yang masuk lebih homogen dan membuat pembakaran lebih sempurna, torsi optimal didapatkan dengan intake manifold variasi 3 sudut kelengkungan kanan 1100 sebesar 3,69 kgf.m dengan persentase peningkatan 4,53% pada putaran 6000 rpm. Daya efektif optimal dengan intake manifold variasi 3 sudut kelengkungan kanan 1100 sebesar 5,41 PS dengan persentase peningkatan 4,58% pada putaran 7000 rpm, 3,56% pada 7500 rpm, dan 4,58% pada 8000 rpm dan Tekanan efektif rata-rata optimal dengan intake manifold variasi 3 sudut kelengkungan kanan 1100 1,886 kg/cm2  dengan persentase peningkatan 10,22% pada putaran 5000 rpm. Kata Kunci : Intake Manifold, Sudut Kelengkungan, Performa Mesin.
THE 'MARIA SCREENING INSTRUMENT’ FOR POST-OPEN PROSTATECTOMY BLEEDING RISK: A QUALITATIVE STUDY Gorety, Maria; Winarto, Eko; Utama, Julvainda Eka Priya
HEARTY Vol 12 No 3 (2024): AGUSTUS
Publisher : Fakultas Ilmu Kesehatan, Universitas Ibn Khaldun, Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/hearty.v12i3.16719

Abstract

Construction of the Maria Screening Instrument Risk of Bleeding Post Open Prostatectomy” is a guide used to assess the risk of bleeding after open prostatectomy. Patients require 85% blood transfusion when resection exceeds 80% of the prostate. The surgical complications that are feared during open prostatectomy surgery are bleeding and obstruction of urine flow. This study aims to identify, analyze and develop a screening instrument for the risk of bleeding after open sprostatectomy. The author conducted a qualitative exploration with 6 participants from different professions in a Focus Group Discussion (FGD) to get a picture of the need for instruments to become a necessity at Boven Digoel Regional Hospital, followed by expert consultation and revisions according to suggestions. The MARIA instrument is the choice for observing post-open prostatectomy patients, namely: Minimizing Blood Loss, Assuring Safe Treatment. Reducing Complications, Individualizing Care, Accelerating Recovery. Conclusion. Maria's screening instrument as a guide is needed to assess the risk of post-open prostatectomy bleeding. Assessment of post-prostatectomy patients should use assessment instruments that can be developed according to hospital needs.
Efektifitas Oral Hygiene terhadap Jumlah Koloni Mikroba sebagai Risiko Ventilator Associated Pneumonia (VAP) Syarif, Ahmad; Winarto, Eko; Eka P.U, Julvainda; Agusman, Fery; Widiati, Amrih
Jurnal Sehat Mandiri Vol 19 No 2 (2024): Jurnal Sehat Mandiri, Volume 19 Nomor 2 Desember 2024
Publisher : Poltekkes Kemenkes Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33761/jsm.v19i2.1516

Abstract

Ventilator Associated Pneumonia (VAP) is inflammation of the lung parenchyma when a patient receives mechanical ventilation for more than 48 hours, caused by the bacteria Pseudomonas aeruginosa, Klebsiella pneumoniae, Acinetobacter baumannii, Staphylococcus aureus, and Escherichia coli. The aim of the research was to determine the effectiveness of oral hygiene between chlorhexidine gluconate 0.2% and Povidone Iodine 1% on the number of microbial colonies as a risk of VAP. The research design is True Experiment Design in the form of Pretest-Posttest Control Group Design. The population is patients on mechanical ventilation from February to March 2024. The number of samples was 15 in each experimental and control group determined randomly. The research variable is counting the number of microbial colonies through swab culture and carrying out the paired sample t-test and dependent sample t-test. The research showed that there was a significant difference (P=0.000) in the pre-test with the number of microbial colonies being greater than the post-test in each chlorhexidine gluconate 0.2% group (difference in mean value 63.13) and the povidone iodine 1% group (difference in average value 71,922) for all microbes. Chlorhexsidine Gluconate 0.2% is more effective than Povidone Iodine 1% with a significant difference in the number of microbial colonies (average p-value > 0.05) both in the pre-test (difference in average value 25,198) and post-test (difference in average value average 16.46) on all microbes. Oral hygiene using chlorhexidine gluconate 0.2% is more effective than povidone iodine 1% on the number of microbial colonies as a risk of VAP. Recommended to optimize the use of 0.2% chlorhexidine gluconate in the cleaning of medical instruments such as ventilators.
Analysis of employee attitudes and perceptions towards cancer survivors: A literature review Mamesah, Adriana; Winarto, Eko; Yunani, Yunani
Science Midwifery Vol 12 No 4 (2024): October: Health Sciences and related fields
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/midwifery.v12i4.1723

Abstract

Cancer survivors face significant challenges in reintegrating into the workforce, often impacted by biased attitudes and perceptions from colleagues and employers. These biases can hinder their productivity and professional satisfaction, emphasizing the need for more inclusive and supportive workplace environments. This descriptive literature review aims to summarize and synthesize existing research on employee attitudes and perceptions among cancer survivors. Utilizing a a inclusion and exclision criteria, the study identifies, screens, and includes relevant papers from various databases, focusing on articles published between 2010 and 2024. The findings the study found the complex relationship between employment, public perceptions, and support systems for cancer survivors re-entering the workforce. A collaborative approach involving healthcare providers, employers, and the public is crucial for optimizing the return-to-work experience.
Support System Kepatuhan Dialisis Pasien Penyakit Ginjal Kronik: Path Analisis Berdasarkan Teori Health Promotion Model Pattinaja, Vini Anjelia; Winarto, Eko; Yunani, Yunani
Jurnal Sehat Mandiri Vol 19 No 2 (2024): Jurnal Sehat Mandiri, Volume 19 Nomor 2 Desember 2024
Publisher : Poltekkes Kemenkes Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33761/jsm.v19i2.1708

Abstract

Chronic Kidney Disease (CKD) is a condition characterized by end-stage renal failure caused by various factors, marked by a decline in the glomerular filtration rate (GFR) below 60 ml/min/1.73 m² for more than five months, necessitating lifelong renal replacement therapy through dialysis. This study aims to identify the support systems that influence dialysis adherence among CKD patients. Using a reciprocal analysis design with path coefficients, the study involved 102 patients undergoing hemodialysis at RS X Jakarta. Multivariate analysis was conducted using SPSS, and path analysis was performed with Smart PLS 3. The results indicate that family support has a significant positive effect on dialysis adherence (O = 2.279; t-statistic 3.019; p = 0.003). Additionally, peer support, through perceptions of dialysis adherence, showed a significant indirect effect (O = 1.979; t-statistic 0.128; p = 0.048). The coefficient of determination for the support system variable was 11% (0.110), indicating that 11% of the variation in dialysis adherence is influenced by the support system. In conclusion, there is a significant relationship along with both direct and indirect effects of support system variables on dialysis adherence among chronic kidney disease patients.
High-Accuracy Stroke Detection System Using a CBAM-ResNet18 Deep Learning Model on Brain CT Images Tahyudin, Imam; Isnanto, R Rizal; Prabuwono, Anton Satria; Hariguna, Taqwa; Winarto, Eko; Nazwan, Nazwan; Tikaningsih, Ades; Lestari, Puji; Rozak, Rofik Abdul
Journal of Applied Data Sciences Vol 6, No 1: JANUARY 2025
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v6i1.569

Abstract

Stroke is a brain dysfunction that occurs suddenly as a result of local or overarching damage to the brain, lasts for at least 24 hours, and causes about 15 million deaths each year globally. Immediate medical treatment is essential to reduce the potential for further brain damage in stroke patients. Medical imaging, especially computed tomography (CT scan), plays a crucial role in the diagnosis of stroke. This study aims to develop and evaluate a deep learning architecture based on Convolutional Block Attention Module (CBAM) and ResNet18 for stroke classification in CT images. This model is designed through data preprocessing, training, and evaluation stages using a cross-validation approach. The results showed that the CBAM-ResNet18 integration resulted in a high accuracy of 95% in distinguishing stroke and non-stroke cases. The accuracy rate reached 96% for nonstroke identification (class 0) and 94% for stroke (class 1), with recall rates of 96% and 93%, respectively. Outstanding classification ability is demonstrated by an Area Under the Curve (AUC) value of 0.99. In comparison, the standard ResNet18 model shows significant fluctuations in validation loss and difficulty in generalization, with training accuracy only reaching 64-68%. On the other hand, CBAM-ResNet18 showed a significant performance improvement with a validation accuracy of 95%, a validation loss of 0.0888, and good generalization on new data. However, the limitations of the dataset and the interpretation of the results indicate the need for further validation to ensure the generalization of the model. These results show the great potential of the CBAM-ResNet18 architecture as an innovative tool in stroke diagnostic technology based on CT imaging analysis. This technology can support faster and more accurate clinical decision-making, as well as open up opportunities for further research related to the development of artificial intelligence-based systems in the medical field.
PENGARUH TERAPI SPIRITUAL EMOTIONAL FREEDOM TECHNIQUE (SEFT) TERHADAP PENURUNAN INTENSITAS NYERI: LITERATUR REVIEW Wicaksono, Fajar Adi; Winarto, Eko
Bhamada: Jurnal Ilmu dan Teknologi Kesehatan (E-Journal) Vol 16 No 1 (2025)
Publisher : UNIVERSITAS BHAMADA SLAWI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36308/jik.v16i1.783

Abstract

Pendahuluan: Nyeri merupakan gangguan yang paling sering dialami dan dikeluhkan pasien di rumah sakit. Pelaksanaan pengelolaan nyeri menjadi hal yang penting dalam pengelolaan keperawatan. Namun, penatalaksanaan nyeri belum dilakukan dengan efektif. Terapi Spiritual Emotional Freedom Technique (SEFT) merupakan salah satu terapi nonfarmakologi dalam keperawatan yang berdasarkan terapi spiritual dan emosional. Penelitian ini bertujuan untuk memberikan ulasan mengenai hasil penelitian yang terkait dengan pengaruh terapi SEFT terhadap penurunan intensitas nyeri. Metode: Penelitian ini merupakan literatur review dengan menelaah sebanyak 8 artikel penelitian. Pencarian artikel menggunakan database ScienceDirect, Google Scholar, Sage Journal dengan kata kunci “Spiritual Emotional Freedom Technique” OR “SEFT” AND “Pain” OR “Nyeri”. Kriteria inklusi pada penelitian ini adalah artikel terbit antara tahun 2020-2024, artikel full text dan Open access, berbahasa Inggris atau Indonesia. Hasil: Populasi yang digunakan pada penelitian ini adalah pasien yang mengalami nyeri post operasi, pasien dengan nyeri kanker, petani yang mengalami nyeri punggung, dan remaja yang mengalami nyeri haid. Intervensi yang digunakan dalam penelitian adalah terapi SEFT untuk menangani nyeri. Instrumen penelitian menggunakan Numeric Rating Scale (NRS), Visual Analog Scale (VAS), dan Brief Pain Inventory (BPI). Delapan artikel menyebutkan terapi SEFT mampu menurunkan intensitas nyeri. Prosedur pelaksanaan terapi SEFT dilakukan selama 3 hari dengan rentang durasi 10-20 menit dalam 1 kali pemberian. Tahapan SEFT yaitu set up, tune in, and tapping. Terdapat 3 dari 8 artikel yang tidak menyebutkan bagaimana prosedur terapi SEFT. Simpulan: Semua artikel menunjukkan bahwa terapi SEFT mampu menurunkan intensitas nyeri dengan menggabungkan metode tapping, terapi spiritual, dan penggunaan sistem energi tubuh.
Intervensi Edukasi Untuk Meningkatkan Self Efficacy dan Mengontrol IDWG Pada Pasien Hemodialisa: Narrative Review Sulistiyowati, Sulistiyowati; Winarto, Eko
JUKEJ : Jurnal Kesehatan Jompa Vol 4 No 2 (2025): JUKEJ: Jurnal Kesehatan Jompa
Publisher : Yayasan Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/jkj.Vol4.Iss2.1923

Abstract

Introduction: The main problem of patients undergoing hemodialysis is Inter Dialytic Weight Gain (IDWG). The patient's inability to follow a CKD diet is influenced by low self-confidence or self-efficacy. Patients need effective education so that patients can increase their self-efficacy to maintain IDWG. Objectives: This study aims to determine the effect of educative intervention on Self-Efficacy and Interdialytic Weight Gain (IDWG) Values in CKD Patients Undergoing Hemodialysis. Research Methods: This research is a narrative review. Search for articles using the ProQuest and Google Scholar databases. The inclusion criteria for this study were articles published between 2016-2024, full text and open access articles, not in the form of a literature review. Research Results: The result found that from 10 articles, the majority came from Indonesia, 7 articles and 3 articles from Iran. There were 5 articles in Indonesian and 5 in English. The results of the study showed that educational interventions had an effect on patient self-efficacy in 5 articles, educational interventions had an effect on IDWG control in 4 articles. Conclusion: Educative intervention can increase self-efficacy and it maintains IDWG on CKD Patients
Perbandingan Skala ELPO Standar dan Modifikasi Dalam Deteksi Risiko Pressure Injury Pasien Bedah Widiastuti, Heti; Winarto, Eko; Agusman, Fery
JUKEJ : Jurnal Kesehatan Jompa Vol 4 No 2 (2025): JUKEJ: Jurnal Kesehatan Jompa
Publisher : Yayasan Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/jkj.Vol4.Iss2.1924

Abstract

Introduction: Patients undergoing surgery lasting more than two hours are at high risk of developing pressure injuries. To predict this risk, nurses can use the ELPO Scale, which assesses factors such as duration of surgery, body position, anesthesia, support, age, length of surgery, and comorbidities. This study aims to compare the results of the standard ELPO Scale with the modified ELPO Scale based on Myra Levine's Conservation Theory in detecting the risk of pressure injuries in patients undergoing surgery for more than two hours. Methods: This is a descriptive quantitative study with a retrospective case-control design using Chi-square analysis to assess the accuracy, sensitivity, and specificity of both scales. Results: The standard ELPO Scale did not show a significant relationship with the incidence of pressure ulcers. In contrast, the modified ELPO Scale had higher accuracy, sensitivity, and specificity in early detection. Conclusion: The modified ELPO Scale is more sensitive than the standard ELPO Scale in detecting the risk of pressure ulcers in surgical patients, with the factors of surgical position, age, mobilization, and skin moisture playing an important role in the occurrence of pressure ulcers.
Hubungan hipertensi dengan kejadian stroke di RSUD Kotamobagu Saharman, Salni; Winarto, Eko
Gema Wiralodra Vol. 14 No. 1 (2023): Gema Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/gw.v14i1.349

Abstract

Stroke is the second leading cause of death and the third leading cause of disability in the world. Stroke according to the World Health Organization (WHO) is a condition in which clinical signs develop rapidly in the form of focal and global neurologic deficits that can be severe and last for 24 hours or more and or can cause death, without any other obvious cause other than vascular. This study aims to determine the relationship between Hypertension and stroke event in the inpatient room at RSUD Kotamobagu. Method of Research on This study used a descriptive analytic research design using a cross sectional approach. The number of samples in this study were 137 respondents. The sampling technique is by systemati random sampling. Research Results : This is evidenced by the statistical test p = 0.001 < = 0.05) the correlation coefficient (r) = 1.000 indicates a very strong relationship. It is proven that patients who suffer from hypertension have a great risk of suffering from stroke. Conclusions and Suggestions Based on the results of research on the relationship between hypertension and stroke events at RSUD Kotamobagu which was conducted on 137 respondents, the results obtained were: The highest proportion of hypertension was 93.43%, the highest proportion of stroke was 93.43%. There is a relationship between hypertension and the incidence of stroke in RSUD Kotamobagu. Suggestions for the Hospital to be able to publish to the wider community the impact caused by hypertension if it is not handled properly and quickly because it can cause a stroke.