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Selection of digital fabrication technique in the construction industry--A multi-criteria decision-making approach

Frontiers of Structural and Civil Engineering 2024年第7期18卷 977-997页

作者： m.p.salaim.nim.gudam.j.jayaprakash Department of Structural and Geotechnical Engineering School of Civil EngineeringVellore Institute of TechnologyVellore 632014India

Digital fabrication techniques,in recent decades,have provided the basis of a sustainable revolution in the construction ***,selecting the digital fabrication method in terms of manufacturability and functionality requirements is a complex *** paper presents alternatives and criteria for selection of digital fabrication techniques by adopting the multi-criteria decision-making *** alternatives considered in the study are concrete three-dimensional(3D)printing,shotcrete,smart dynamic casting,material intrusion,mesh molding,injection concrete 3D printing,and thin forming *** criteria include formwork utilization,reinforcement incorporation,geometrical complexity,material enhancement,assembly complexity,surface finish,and build *** demonstrates different multi-criteria decision-making techniques,with both subjective and objective weighting *** given ranking is based on the current condition of digital fabrication in the construction *** study reveals that in the selection of digital fabrication techniques,the criteria including reinforcement incorporation,build area,and geometrical complexity play a pivotal role,collectively accounting for nearly 70% of the overall *** the evaluated techniques,concrete 3D printing emerged as the best performer,however the shotcrete and mesh molding techniques in the second and third positions.

关键词： digital fabrication multicriteria decision-making concrete 3D printing

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Effect of Impaired Lung Function on the Development and progression of Endobronchial premalignant Lesions

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journal of Cancer Therapy 2012年第4期3卷 364-371页

作者： Vijayvel jayaprakash Gregory m. Loewen martin C. mahoney Samjot Dhillon Sai Yendamuri D. Kyle Hogarth Enrique machare-Delgado Ravi j. menezes Sandra m. jacob mary E. Reid Cancer prevention and population Sciences Roswell Park Cancer Institute Buffalo USA Department of medical Imaging University Health Network Toronto Canada Department of medicine Roswell Park Cancer Institute Buffalo USA Department of Social and preventive medicine State University of New York at Buffalo Buffalo USA Department of Thoracic Surgery Roswell Park Cancer Institute Buffalo USA pulmonary Oncology Sacred Heart Medical Center Spokane USA School of medicine State University of New York at Buffalo Buffalo USA Section of pulmonary and Critical Care medicine University of Chicago Chicago USA

Background: Chronic obstructive pulmonary disease (COpD) and presence of endobronchial premalignant lesions (EpL) are individual risk factors for lung cancer (LC). However, effect of impaired lung function (ILF) on the natural history of EpL has not been explored. patients and methods: This study included 217 high-risk participants from a hospital-based LC surveillance cohort who underwent pulmonary function testing followed by bronchoscopy with endobronchial biopsies. Baseline histopathology diagnoses included 91 cases (41.9%) with squamous metaplasia (Sm), 25 (11.5%) with squamous dysplasia (SD), 1 (0.5%) with in-situ carcinoma and 5 (2.3%) with invasive LC. Follow-up biopsies were obtained for 69 patients, and 16 (23.2%) patients demonstrated progression to a higher grade lesion. Regression models were used to evaluate the relationship between ILF and EpL. All the models were adjusted for age, gender and tobacco smoking. Results: patients with FEV1% of mes greater risk of being diagnosed with an EpL [95% confidence interval: 1.93-10.80] and 8-fold greater risk of SD, compared to patients with FEV1% ≥80. COpD was associated with 2.7 and 4.8 times greater risk of Sm and SD, respectively. The mean time to progression to a higher-grade lesion was shorter in COpD patients compared to patients without COpD (27 versus 50 months, p = 0.02). Conclusion: Our results indicate that ILF may be a predictor of prevalence and progression of EpLs among patients at high risk of LC. Therefore, spirometry can be a complementary pre-screening tool for identifying patients with EpL who need more intense LC surveillance.

关键词： COpD Lung Cancer premalignant Lesions Dysplasia pulmonary Function Test Spirometry

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A hybrid organic-inorganic polariton LED

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Light(Science & Applications) 2019年第1期8卷 475-485页

作者： Rahul jayaprakash Kyriacos Georgiou Harriet Coulthard Alexis Askitopoulos Sai K.Rajendran David m.Coles Andrew j.musser jenny Clark Ifor D.W.Samuel Graham A.Turnbull pavlos G.Lagoudakis David G.Lidzey Department of physics and Astronomy The University of SheffieldHicks BuildingHounsfield RoadSheffield S37RHUK Department of physics and Astronomy University of SouthamptonSouthampton SO171BJUK Skolkovo Institute of Science and Technology MoskvaRussia Organic Semiconductor Centre SUPASchool of Physics and AstronomyUniversity of St AndrewsSt.AndrewsFife KY169SSUK Baker Laboratory Cornell University259 East AvenueIthacaNY 14850USA

polaritons are quasi-particles composed of a superposition of excitons and photons that can be created within a strongly coupled optical ***,we describe a structure in which a strongly coupled microcavity containing an organic semiconductor is coupled to a second microcavity containing a series of weakly coupled inorganic quantum *** show that optical hybridisation occurs between the optical modes of the two cavities,creating a delocalised polaritonic *** electrically injecting electron–hole pairs into the inorganic quantum-well system,we are able to transfer energy between the cavities and populate organic-exciton *** approach represents a new strategy to create highly efficient devices for emerging‘polaritonic’technologies.

关键词： state. inorganic polar

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