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Assessment of the stiffened panel performance in the OTEC seawater tank design:Parametric study and sensitivity analysis

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Theoretical & Applied Mechanics Letters 2023年第4期13卷 261-271页

作者： Yogie Muhammad Lutfi ristiyanto adiputra Aditya Rio Prabowo Tomoaki Utsunomiya Erwandi Erwandi Nurul Muhayat Department of Mechanical Engineering Universitas Sebelas MaretSurakarta 57126Indonesia Research Center for Hydrodynamics Technology National Research and Innovation Agency(BRIN)Surabaya 60117Indonesia Department of Marine Systems Engineering Kyushu UniversityFukuoka 819-0395Japan

Ocean thermal energy conversion(OTEC)is a process of generating electricity by exploiting the temperature difference between warm surface seawater and cold deep *** to the high static and dynamic pressures that are caused by seawater circulation,the stiffened panel that constitutes a seawater tank may undergo a reduction in ultimate *** current paper investigates the design of stiffening systems for OTEC seawater tanks by examining the effects of stiffening parameters such as stiffener sizes and span-over-bay ratio for the applied combined loadings of lateral and transverse pressure by fluid motion and axial compression due to global bending *** ultimate strength calculation was conducted by using the non-linear finite element method via the commercial software known as *** stress and deformation distribution due to pressure loads was computed in the first step and then brought to the second step,in which the axial compression was *** effects of pressure on the ultimate strength of the stiffener were investigated for representative stiffened panels,and the significance of the stiffener parameters was assessed by using the sensitivity analysis *** a result,the ultimate strength was reduced by approximately 1.5%for the span-over-bay ratio of 3 and by 7%for the span-over-bay ratio of 6.

关键词： Ocean thermal energy conversion(OTEC) Seawater tank Stiffened panels Numerical analysis Combined loadings

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Clinical Relevance of Coronary Fractional Flow Reserve： Art-of-state

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Chinese Medical Journal 2015年第10期128卷 1399-1406页

作者： Yohanes adiputra Shao-Liang Chen Department of Cardiology Nanjing First Hospital of Nanjing Medical University Nanjing Jiangsu 210006 China

Objective：The objective was to delineate the current knowledge of fractional flow reserve （FFR） in terms of definition,features,clinical applications,and pitfalls of measurement of *** Sources：We searched database for primary studies published in *** database of National Library of Medicine （NLM）,MEDLINE,and PubMed up to July 2014 was used to conduct a search using the keyword term ＂FFR＂.Study Selection：The articles about the definition,features,clinical application,and pitfalls of measurement of FFR were identified,retrieved,and ***：Coronary pressure-derived FFR rapidly assesses the hemodynamic significance of individual coronary artery lesions and can readily be performed in the catheterization *** use of FFR has been shown to effectively guide coronary revascularization procedures leading to improved patient ***：FFR is a valuable tool to determine the functional significance of coronary *** combines physiological and anatomical information,and can be followed immediately by percutaneous coronary intervention （PCI） if *** technique of FFR measurement can be performed easily,rapidly,and safely in the catheterization *** systematic use of FFR in dubious stenosis and multi-vessel disease,PCI can be made an even more effective and better treatment than it is *** current clinical evidence for FFR should encourage cardiologists to use this tool in the catheterization laboratory.

关键词： Clinical Application Features: Fractional Flow Reserve Limitation

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Vaccine induced thrombotic thrombocytopenia:Coagulation after administration of COVID-19 vaccine

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Asian Pacific Journal of Tropical Medicine 2021年第11期14卷 477-478页

作者： Cokorda Agung Wahyu Purnamasidhi I Komang Hotra adiputra Giovanca Verentzia Purnama RichardChristian Suteja I Gede Purna Weisnawa Department of Internal Medicine Udayana University/Udayana University HospitalIndonesia Medical Faculty of Udayana University Indonesia

COVID-19 continues to present a daunting public health challenge globally and requires concerted efforts from multiple fronts including the development of vaccines and therapeutic agents^([1,2]).To prevent the spread of COVID-19,various types of vaccines have been *** Moderna vaccine,is an RNA-based vaccine that encodes a protein spike to stimulate immune immunity.

关键词： vaccine Vaccine vaccines

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The risk factors of SARS-CoV-2 antibody level differences in healthcare workers post vaccination in Siloam hospitals:A nationwide multicenter study

Infectious Medicine

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Infectious Medicine 2022年第4期1卷 229-235页

作者： Allen Widysanto Ignatius Bima Prasetya Tandry Meriyanti Veli Sungono Diane Lukito Setiawan Edy Gunawan Bayu adiputra Jane Olivia Lorens Theresia Santi Cindy Meidy Leony Pradhana Irawan Yusuf Catherine Gunawan Siloam Hospitals Lippo Village BantenIndonesia Faculty of Medicine Pelita Harapan UniversityBantenIndonesia Siloam Hospitals Surabaya East JavaIndonesia Clinical Research Department Siloam Hospitals Group BantenIndonesia Siloam Hospitals Lippo Cikarang West JavaIndonesia Mochtar Riady Institute for Nanotechnology BantenIndonesia

Background:Several vaccines have been approved against COVID-19,and 5 have been used in *** to the decrease in antibody levels 3 to 6 months after the second dose of CoronaVac,healthcare workers received the third booster of mRNA vaccine(mRNA-1273)to increase the antibody *** study aimed to evaluate the risk factors of anti-S-RBD IgG levels differences in healthcare ***:This study is a retrospective cohort study of 576 healthcare workers without previous SARS-CoV-2 infection who received 2 doses of CoronaVac and the third dose of mRNA-12736 months after the second *** samples were obtained 2nd,6th,12th,and 24th weeks after the second dose of CoronaVac vaccine administration,with mRNA-1273 booster on week *** measurements of IgG antibodies were performed with Elecsys Anti-SARS-CoV-2 S *** identify the baseline factors predicting post-vaccination antibody titers using univariate and multivariate linear regression ***:This study comprised 576 participants aged 32 years old,72.05%female,and 45.84%from high-risk occupation *** median antibodies titer level on the 2nd,6th,12th,and 24th weeks after the second vaccine dose administration were 40.99 u/mL,42.01 u/mL,54.78 u/mL,and 23,225 u/*** levels trended highest in female and younger age group(20-29 years old).Conclusions:The third dose of vaccine increased the quantitative SARS-CoV-2 spike IgG antibody titers and eliminated differences in antibodies titer by gender.

关键词： Antibodies titer COVID-19 Immune response S-RBD IgG Vaccine

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