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Multi-criteria decision making for nuclear power plant selection using fuzzy AHP:Evidence from Indonesia

Energy and AI 2023年第4期14卷 99-111页

作者： Ade Gafar Abdullah Mohammad Ali Shafii Syeilendra Pramuditya Topan Setiadipura kurnia anzhar Electrical Engineering Study Program Universitas Pendidikan IndonesiaBandungIndonesia Physics Department Andalas UniversityPadangIndonesia Nuclear Science and Engineering Study Program Bandung Institute of TechnologyIndonesia Research Center for Nuclear Reactor Technology National Research and Innovation AgencyIndonesia Pusat Unggulan Ipteks Perguruan Tinggi Technical and Vocational Education and Training Research Center(TVET RC)Universitas Pendidikan IndonesiaIndonesia

In terms of planning aspect,nuclear power plant(NPP)development needs analyses,consideration,and right decision making due to multi criteria *** study prioritizes the best site development of Indonesian NPPs in terms of 21 social,economic,and technical perspectives which comprise transmission network,oper-ating cost,economic impact,geology,geotechnic,seismology,population density,environment,cooling water,meteorology,hydrology,proximity to hazardous facilities,topography,land use,proximity to wetland,evacu-ation route,security,transportation network,legal consideration,impact of tourism,land ownership,historical places,and public acceptance,all identified to be considerations for the best *** Fuzzy algorithms(Chang’s Extent Analysis and Buckley’s Fuzzy AHP)were used to determine the criteria priorities as well as NPP site feasibility of two locations in *** results found that geology,geotechnic,and seismology(SA1);security(SO1),population density(SA2),environment(SA3),and cooling water(SA4)had the highest priorities among the 21 *** on the 5 top priority criteria,West Kalimantan and East Kalimantan provinces serve as the best candidates for the NPP *** an innovative and novel multi criteria Fuzzy AHP–based decision making(MCDM)approach has been proven to become a useful reference to select NPP sites in Indonesia.

关键词： Analytical hierarchy process Fuzzy AHP Multi-criteria decision making Nuclear power plant

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Liberica coffee as an alternative cropping system for sustainable farming on Indonesian Peatlands

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International Journal of Agricultural and Biological Engineering 2024年第1期17卷 180-188页

作者： Bariot Hafif Yulius Ferry Budi Martono Rita Harni kurnia Dewi Sasmita Busyra B.Saidi Maswar Maswar R.Bambang Heryanto Novizar Nazir Fahmuddin Agus Meynarti Sari Dewi Ibrahim National Research and Innovation Agency Research Center for Estate CropsIndonesia National Research and Innovation Agency Research Center for Food CropsIndonesia Faculty of Agricultural Technology Andalas UniversityIndonesia

Indonesian peatlands are a fragile ecosystem,and to protect it,growing Liberica coffee is a promising way for both the environment and the *** study aimed to evaluate the performance of the liberica coffee on peatland with different water tables and develop an improved cultivation system in this *** study area was in Tanjung Jabung Barat District,Jambi Province,*** plant age is greater than 15 years and the average plant density was about 1000 trees/*** study was conducted in two *** 1st stage was a survey to identify and characterize smallholder liberica coffee farming at three peatland zones,namely 0-100 m,200-300 m,and>400 m from the principal drainage canal,and the 2nd stage was a field experiment to test the effectiveness of amendments in improving liberica coffee growth and improving degraded *** treatments were arranged in a randomized complete block design with four replications,including manure(M),at the rate of 10 t/hm^(2);lime(L),3 t/hm^(2);peat surface elevation(P),and a farmer’s practice(Control)without manure and/or lime as a *** research revealed that liberica coffee can not tolerate high water table as it may stimulate disease incidence and cause low-quality ***,recycling of organic C of about 17.14 t/(hm^(2)·a)through cherry residue application and litter compensated part of the loss of organic C through CO_(2)emissions,coffee bean removal,and maintaining peat fertility for sustainable *** low yield of(0.70±0.12)t/(hm^(2)∙a)coffee bean could be increased to(0.87±0.24)and(0.94±0.14)t/(hm^(2)∙a)by adding 3 t/(hm^(2)∙3a)of lime or 10 t/(hm^(2)∙a)of manure,*** research revealed that water table management and amendments are two main factors in liberica coffee farming on *** is of great significance to study the cultivation technology of coffee in peatland.

关键词： degraded peat amendments water table cultivation system liberica coffee alternative cropping system sustainable farming Indonesian Peatlands

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Lessons learned from coreflood experiments with surfactant-polymer and alkali-surfactant-polymer for enhanced oil recovery

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Petroleum 2023年第4期9卷 487-498页

作者： Ivan kurnia Muhammad Fatchurrozi Riyaz Ghulam Anwary Guoyin Zhang Reservoir Engineering Research Group Institut Teknologi BandungIndonesia Petroleum Engineering Undergraduate Study Program Institut Teknologi BandungIndonesia Petroleum Recovery Research Center New Mexico TechUnited States

A review of coreflood experiments for chemically enhanced oil recovery(EOR)is presented in this paper,particularly surfactant-polymer(SP)and alkali-surfactant-polymer(ASP)*** objective of this review is to gain a general outlook and insight from coreflood experiments injecting SP or ASP slug as tertiary *** discussion is separated into sections based on relevant core and fluid properties as well as surfactant selection and SP/ASP slug design and their impact on incremental *** studies in this review have been published within the last twenty years but few older coreflood works have been included for *** in each reviewed study have been summarized in tables to help readers gain detailed *** learned from these past experiments should help other chemical EOR practitioners or students of the field in benchmarking or improving the outcomes of their future SP/ASP experiments.

关键词： Enhanced oil recovery Surfactant Polymer Alkali Coreflood

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Association between social media addiction and sleep quality among undergraduate nursing students:a cross-sectional study

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Frontiers of Nursing 2023年第2期10卷 233-239页

作者： Lilis Setyowati Anggraini Dwi kurnia Windi Lestari Sirikul Karuncharernpanit Basic Nursing Department Faculty of Health SciencesUniversity of Muhammadiyah MalangJawa TimurMalang 65145Indonesia Community Health Nursing Department Faculty of Health SciencesUniversity of Muhammadiyah MalangJawa TimurMalang 65145Indonesia Nursing Department Faculty of Health SciencesUniversity of Muhammadiyah MalangJawa TimurMalang 65145Indonesia Nursing Department Boromarajonani College of Nursing ChakrirajLat Bua KhaoRatchaburi 70110Thailand

Objectives:To examine the association between social media addiction and sleep quality among undergraduate nursing ***:This research is an analytical observational study with a cross-sectional *** sampling technique was purposive sampling of 150 nursing students at a private university in Malang,*** filled out a questionnaire about self-identity,a sleep quality questionnaire from the Pittsburgh Sleep Quality Index(PSQI),and social media addiction from Social Media Addiction Scale(SMAS).This was a bivariate analysis which was conducted using the Pearson Product Moment Correlation ***:The results of this study reported that most nursing students were addicted to social media(76%).As for the parameter of the quality variable,most respondents had poor sleep quality,which were about 106 people(70.3%).The result of the Pearson Product Moment Correlation test obtained a P value of *** Pearson correlation coefficient was *** media addiction(adjusted odds ratio[OR]4.80,95%confidence interval[CI]=2.08-11.02),gender(adjusted OR 3.79,95%CI=1.58-9.12),and using social media for a long time(adjusted OR 4.21,95%CI=1.97-10.48)were associated with sleep ***:We found that there is an association between social media addiction and sleep quality among nursing ***,we might be educating nursing students to manage their time to improve their quality of sleep to avoid any health problems.

关键词： addiction social media sleep quality nursing student correlation

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Green synthesis of magnetically separable and reusable Fe_(3)O_(4)/Cdots nanocomposites photocatalyst utilizing Moringa oleifera extract and watermelon peel for rapid dye degradation

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Carbon Resources Conversion 2023年第4期6卷 274-286页

作者： Emi kurnia Sari Rivaldo Marsel Tumbelaka Harlina Ardiyanti Nurul Imani Istiqomah Chotimah Edi Suharyadi Department of Physics Universitas Gadjah MadaYogyakartaIndonesia Department of Physics Institut Teknologi SumateraLampungIndonesia

This study focused on green-synthesized magnetite/carbon dots nanocomposites(GS-Fe_(3)O_(4)/Cdots)utilizing Moringa oleifera leaf extract and watermelon peel waste for rapid degradation of methylene blue(MB)***-precipitation and hydrothermal method were used to synthesize GS-Fe_(3)O_(4) and Cdots,*** addition,the sonication method was used to link Cdots on Fe_(3)O_(4) surface.X-ray diffraction spectrum of GS-Fe_(3)O_(4)/Cdots inform the cubic inverse spinel and has crystallite size in the range of 10.1-7.2 *** crystallite size also decreased with the increase of Cdots *** transmission electron microscope showed the most uniform size of nanocomposites at around 13.4 *** functional group of Fe-O was detected on the nanocomposites,proof that Fe_(3)O_(4) still exists after *** presence of C=C,C-O,and C-O-C also indicates the existence of Cdots on the surface of Fe_(3)O_(4).The addition of Cdots affected the saturation magnetization and coercivity value in the range of 29.2-38.3 emu/g and 59-65 Oe,respectively,which showed a good magnetic *** an organic dye,MB was used for a photocatalytic process under UV *** degradation efficiency was raised to 98% for 30 min photocatalytic *** magnetically separable capability makes nanocomposites could be recycled and reused three times with high ***,GS-Fe_(3)O_(4)/Cdots potential as a low-cost and environmentally friendly reusable photocatalyst for rapid wastewater degradation.

关键词： Green synthesis Fe_(3)O_(4)nanoparticles Cdots Nanocomposite MB degradation

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Health-promoting behaviors among hypertensive adult patients with and without comorbidities in Indonesia:a cross-sectional study

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Frontiers of Nursing 2022年第3期9卷 255-261页

作者： Anggi Lukman Wicaksana I Putu Athia Alit Artawan Adhe kurnia Destiana Department of Medical Surgical Nursing Universitas Gadjah MadaYogyakartaIndonesia The Sleman Health and Demographic Surveillance System Universitas Gadjah MadaYogyakartaIndonesia School of Nursing College of NursingTaipei Medical UniversityTaipeiTaiwanChina School of Nursing Universitas Gadjah MadaYogyakartaIndonesia

Objective:The aim of this study was to evaluate health-promoting behaviors among hypertensive patients with and without ***:A cross-sectional study using multistage cluster sampling in Indonesia was *** health-promoting behaviors were assessed using Health-Promoting Lifestyle Profile 2 and analyzed using independent t-test,point-biserial correlation,and logistic ***:A total of 116 participants joined this *** score of health-promoting behaviors in adults with and without hypertension was 2.90 and 2.79,*** patients with comorbidities had significantly higher results than those without comorbidities,with the following results for the considered subscales:total score(t=-2.00,P=0.047);health responsibility(t=-3.46,P=0.001);and nutrition(t=-2.82,P=0.006).Positive correlations were found between health responsibility(r_(pb)=0.260,P<0.01),nutrition(r_(pb)=0.255,P<0.01),and health-promoting behaviors(r_(pb)=0.185,P<0.05)and the existing *** gender indicated a significant outcome for the existing comorbidity in hypertensive patients(odds ratio=4.314,P=0.027,95%confidence interval=1.185-15.706).Conclusions:Hypertensive patients with comorbidities showed higher engagement in health-promoting behaviors and the male gender was a significant predictor for existing comorbidity among patients with hypertension.

关键词： behavior comorbidity health behaviors health-promoting behavior hypertension

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Delayed versus immediate intervention of ruptured brain arteriovenous malformations:A case report

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World Journal of Clinical Cases 2023年第9期11卷 1992-2001页

作者： Andi kurnia Bintang Ashari Bahar Muhammad Akbar Gita Vita Soraya Anthony Gunawan Nurussyariah Hammado Mochammad Erwin Rachman Zulvikar Syambani Ulhaq Department of Neurology Hasanuddin UniversityMakassar 90245Indonesia Department of Biochemistry Faculty of MedicineHasanuddin UniversityMakassar 90245Indonesia Faculty of Health and Sport Science State University of MakassarMakassar 90222Indonesia Faculty of Medicine Muslim University of IndonesiaMakassar 90231Indonesia Research Center for Preclinical and Clinical Medicine National Research and Innovation Agency Republic of IndonesiaCibinong 16911Indonesia Laboratory of Developmental Disorders and Toxicology Kyushu UniversityFukuoka 8190395Japan Department of Biomedical Science Faculty of Medicine and Health SciencesMaulana Malik Ibrahim State Islamic UniversityMalang 65144Indonesia

BACKGROUND Brain arteriovenous malformations(bAVMs)remains one of the most prevalent causes of intracranial hemorrhage and stroke-like syndromes in the young adult *** it has been agreed upon that definitive treatment using either single or multi-modal approach is warranted for successful bAVM management,much debate still revolves regarding the optimal timing of definitive *** SUMMARY In this report,we present a case of delayed,definitive endovascular treatment for ruptured bAVM in a 21-year-old female,3 mo *** bAVM,with a left pericallosal feeding artery and cortical draining veins,was successfully obliterated through embolization using the Onyx *** follow-up the patient has recommenced her daily activities and experiences only mild occasional headaches with mild motor *** report leads to our review on an important issue regarding the optimal timing of ruptured bAVM definitive management and bring forward the current evidence available on delayed vs immediate definitive bAVM *** also highlight current issues that need to be addressed for clearer guidelines on definitive therapy *** Current treatment paradigms of ruptured bAVM remains elusive,with substantial heterogeneity in the current literature.A consensus on the definition of“acute”vs“delayed”,management goal,follow-up length and outcome parameters are required to support formation of a clear paradigm.

关键词： Brain arteriovenous malformation Ruptured brain arteriovenous malformation Definitive intervention Endovascular treatment Case report

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Utilization of fruit waste for H_(2)-rich syngas production via steam co-gasification with brown coal

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Carbon Resources Conversion 2023年第4期6卷 315-325页

作者： Aisikaer Anniwaer Nichaboon Chaihad Aghietyas Choirun Az Zahra Irwan kurnia Yutaka Kasai Suwadee Kongparakul Chanatip Samart Katsuki Kusakabe Abuliti Abudula Guoqing Guan Graduate School of Science and Technology Hirosaki University1-BunkyochoHirosaki 036-8560Japan Energy Conversion Engineering Laboratory Institute of Regional InnovationHirosaki University3-BunkyochoHirosaki 036-8561Japan Industrial Research Institute Aomori Prefectural Industrial Technology Research Center4-11-6Daini-TonyamachiAomori 030-0113Japan Department of Chemistry Faculty of Science and TechnologyThammasat UniversityPathumtani 12120 Thailand Department of Nanoscience Sojo University4-22-1Nishi-kuKumamoto-shiKumamoto 860-0082Japan Department of Chemistry Faculty of Mathematics and Natural SciencesUniversitas PadjadjaranJl.Raya Bandung–Sumedang KM.21 JatinangorSumedang 45363Indonesia

In this work,to efficiently utilize waste fruit and low-rank coal for the hydrogen(H_(2))-rich syngas production,steam co-gasification of banana peel(BP)and brown coal(BC)was studied in a fixed-bed *** results showed that the gasification rate of BC was highly enhanced after mixing it with BP and the obvious synergistic effect was observed in all investigated three mixing weight ratios(i.e.,1:1,1:4,4:1),resulting in a higher carbon conversion as well as a H_(2)-rich gas production yield for the ***,the extent of promotion by synergistic effect was affected by the reaction temperature,mixing ratio,and steam *** was found that the high potassium(K)species content in the BP provided the catalytic effect not only on water-gas shift reaction but also on tar reforming/cracking,thereby enhancing the gasification of *** addition,it is confirmed that steam should be an important factor to promote the synergistic effect and H_(2)-rich gas production.

关键词： Steam co-gasification Waste banana peel Brown coal H2-rich syngas Synergistic effect

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Evaluation of the heat transfer performance of helical coils of non-circular tubes

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第1期12卷 63-70页

作者： Jundika C.kurnia Agus P.SASMITO Arun S.MUJUMDAR Department of Mechanical Engineering National University of Singapore Mineral Metal and Material Technology CentreNational University of Singapore

This study addresses heat transfer performance of various configurations of coiled non-circular tubes, e.g., in-plane spiral ducts, helical spiral ducts, and conical spiral ducts. The laminar flow of a Newtonian fluid in helical coils made of square cross section tubes is simulated using the computational fluid dynamic approach. The effects of tube Reynolds number, fluid Prandtl number, coil diameter, etc., are quantified and discussed. Both constant wall temperature and constant heat flux conditions are simulated. The effect of in-plane coil versus a cylindrical design of constant coil, as well as a conical coil design is discussed. Results are compared with those for a straight square tube of the same length as that used to form the coils. Advantages and limitations of using coiled tubes are discussed in light of the numerical results.

关键词：传热性能螺旋管非圆形计算流体力学方法平面螺旋槽螺旋线圈评价大肠杆菌

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Dust dispersion and management in underground mining faces

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International Journal of Mining Science and Technology 2014年第1期24卷 39-44页

作者： kurnia Jundika Candra Sasmito Agus Pulung Mujumdar Arun Sadashiv Minerals Metals and Materials Technology Centre National University of Singapore Mechanical Engineering Masdar Institute of Science and Technology Department of Mining and Materials Engineering McGill University Department of Bioresource Engineering McGill University

Presence of fine dust in air causes serious health hazard for mine operators resulting in such serious problems as coal workers’pneumoconiosis and *** sources of dust appear of course along the mining face where the minerals are *** control and management are required to ensure safe working environment in the ***,we utilize the computational fluid dynamic(CFD)approach to evaluate various methods used for mitigating dust dispersion from the mining face and for ensuring safe level of dust concentration in the mine tunnel for safety of the *** methods used include:application of blowing and exhaust fans,application of brattice and combination of *** results suggest that among the examined methods,implementation of appropriately located brattice to direct the flow from the main shaft to the mining face is the most effective method to direct dust particles away from the mining face.

关键词：开采工作面微细粉尘管理计算流体动力学分散安全水平应用程序采掘工作面

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