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Data-Driven optimization approach to health care management planning

AIP Conference Proceedings 2023年第1期2714卷

作者： M. Irfan Fahmi M. Zarlis Syahril Efendi Tulus Graduate School of Mathematics Universitas Sumatera Utara Medan Indonesia Faculty of Computer Science and Information Technology Universitas Sumatera Utara Medan Indonesia Department of Mathematics Universitas Sumatera Utara Medan Indonesia

Hospital services play a critical role in providing managerial health services for patients’ health in hospitals. It is becoming increasingly important to cut costs and optimize resource allocation. Decisions about capacity planning are critical in all industries, particularly those related to the hospital industry, because they relate not only to the management of highly specialized and expensive resources. This paper proposes an optimization model for the capacity planning in a hospital based on data-driven approach. The aim of the model is to find the minimum of the operating costs occurred in hospital healthcare planning.

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Design and Implementation of Virtual TAP for SDN-based OpenStack Networking

Design and Implementation of Virtual TAP for SDN-based OpenS...

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2019 IFIP/IEEE International Symposium on Integrated Network Management, IM 2019

作者： Jeong, Seyeon You, Jae-Hyoung Hong, James Won-Ki Department of Computer Science and Engineering POSTECH Korea Republic of Graduate School of Information Technology POSTECH Korea Republic of

ISBN: (纸本)9783903176157

Currently, virtualization technology that enables a data center to efficiently use server resources is promising as cloud services are being prevalent with increasing traffic volumes and requirements for service quality. vTAP (Virtual Test Access Port), we propose in this work, can overcome the problem that existing hardware TAP devices cannot be used in duplicating inter-VM (Virtual Machine) packets being transmitted over virtual links. vTAP can be implemented using a virtual switch that provides network connectivity to VMs by switching packets over the virtual links. Port mirroring, or SPAN (Switched Port Analyzer), that is available in some software switches can be a naive solution but using it in a system that needs to treat a large volume of network traffic implies performance degradation in packet switching and error-prone manual configuration. In this work, we describe the design and detailed considerations on our OpenFlow-based vTAP implementation. It is based on Open vSwitch and ONOS (Open Network Operating System) SDN (Software-Defined Networking) controller to enable packet-level traffic monitoring in OpenStack environment. We also present the performance evaluation on our vTAP used in some network monitoring cases, with packet processing acceleration by DPDK (Data Plane Development Kit). © 2019 IFIP

关键词： Packet switching

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Management of extra-articular manifestations in spondyloarthritis

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International journal of rheumatic diseases 2023年第2期26卷 183-186页

作者： Kevin Sheng-Kai Ma Yung-Heng Lee Chia-Jen Lin Po-Cheng Shih James Cheng-Chung Wei Department of Epidemiology Harvard T.H. Chan School of Public Health Boston Massachusetts USA. Center for Global Health Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA. Graduate Institute of Biomedical Electronics and Bioinformatics College of Electrical Engineering and Computer Science National Taiwan University Taipei Taiwan. Department of Dermatology Massachusetts General Hospital Boston USA. Department of Orthopedics Cishan Hospital Ministry of Health and Welfare Kaohsiung Taiwan. Institute of Medical Science and Technology National Sun Yat-sen University Kaohsiung Taiwan. Department of Senior Services Industry Management Minghsin University of Science and Technology Hsinchu Taiwan. Department of Recreation and Sport Management Shu-Te University Kaohsiung Taiwan. School of Medicine Chung Shan Medical University Taichung Taiwan. Division of Allergy Immunology & Rheumatology Department of Internal Medicine Changhua Christian Hospital Changhua Taiwan. Institute of Medicine Chung Shan Medical University Taichung Taiwan. Division of Allergy Immunology & Rheumatology Chung Shan Medical University Hospital Taichung Taiwan. Graduate Institute of Integrated Medicine China Medical University Taichung Taiwan.

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A mixed-integer model for aircraft fleet assignment and manpower planning problems under uncertainty

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AIP Conference Proceedings 2023年第1期2714卷

作者： Rianita Simamora Herman Mawengkang Saib Suwilo Muhammad Zarlis Graduate School of Mathematics Universitas Sumatera Utara Medan Indonesia Department of Mathematics Universitas Sumatera Utara Medan Indonesia Faculty of Computer Science and Information Technology Universitas Sumatera Utara Medan Indonesia

To optimize flight planning is an essentialpoint for every airline company must consider such as maximizing profits. Several stages involved in flight planning optimization, for example, the scheduling of the aircraft fleet, which should be planned optimally how to schedule the aircraft to different multi-leg flights. Howeverin reality the demand is uncertain at this early stage due to a variety of factors. We formulate a mixed integer stochastic programming model for solving the planning problem.

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A sustainable and green approach towards the utilization of biopolymers for effective wound dressing applications: A detailed review

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Nano-Structures and Nano-Objects 2024年 37卷

作者： Verma, Deepak Okhawilai, Manunya Nangan, Senthilkumar Thakur, Vijay Kumar Gopi, Sreeraj Kuppusamy, Kanagaraj Sharma, Mohit Uyama, Hiroshi International Graduate Program of Nanoscience and Technology Chulalongkorn University Bangkok Thailand Metallurgy and Materials Science Research Institute Chulalongkorn University Bangkok 10330 Thailand Center of Excellence in Polymeric Materials for Medical Practice Devices Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand Biorefining and Advanced Materials Research Centre SRUC Kings Buildings West Mains Road Edinburgh EH9 3JG United Kingdom Centre for Research and Development Chandigarh University Punjab Mohali 140413 India Gdansk University of Technology Faculty of Chemistry Polymer Technology Department Gdansk Poland Molecule Food solutions Pvt Ltd Prestiga Atlanda Karnataka Bengaluru 560034 India Center for Supramolecular Chemistry & Catalysis and Department of Chemistry College of Science Shanghai University 99 Shang-Da Road Shanghai 200444 China Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A⁎STAR) 2 Fusionopolis Way Innovis #08-03 Singapore 138634 Singapore Department of Applied Chemistry Graduate School of Engineering Osaka University Osaka 565-0871 Japan

Millions of people worldwide are suffering and struggling to obtain the most effective wound care/treatment. In previous years, a steep rise in metabolic disorders such as diabetic wound ulcers has been noticed. The primary function of an effective wound dressing is to protect the wound bed from contamination and provide an accelerated healing environment. Biopolymers, a natural boon, can be used for distinct applications from food packaging, biomedicine, and biomedical applications. Natural and synthetic biopolymers have distinct advantages, such as biocompatibility, biodegradability, and environmental friendliness. Cellulose, chitosan, alginates, hyaluronic acid, collagen, etc., are natural biopolymers primarily used to develop wound dressings. Most common synthetic biopolymers such as PVA, PCL, and PLA are examples of how an individual biopolymer or its blends can be used to develop an effective wound dressing. Biopolymer properties for wound dressing applications can be improved by applying the concepts of nanotechnology, bioengineering, and drug delivery. These improvements may help meet the current and future wound care demands for tissue repair and restoration. The current review focuses on using natural and synthetic functionalized biopolymers for effective wound-dressing applications and exhibiting their antibacterial and antimicrobial properties. © 2024 Elsevier B.V.

关键词： Biopolymer functionalization Drug delivery Natural and synthetic Biopolymers Wound dressings Wounds

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Scalable Metagrating for Efficient Ultrasonic Focusing

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Physical Review Applied 2021年第6期16卷 064014-064014页

作者： Yan Kei Chiang Li Quan Yugui Peng Shahrokh Sepehrirahnama Sebastian Oberst Andrea Alù David A. Powell School of Engineering and Information Technology University of New South Wales Canberra ACT 2610 Australia Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 USA Photonics Initiative Advanced Science Research Center City University of New York New York New York 10031 USA Centre for Audio Acoustics and Vibration University of Technology Sydney Broadway NSW 2007 Australia Physics Program Graduate Center City University of New York New York New York 10016 USA

Acoustic metalenses have been pursued over the past decades due to their pivotal role in a wide variety of applications. Recent research efforts have demonstrated that, at ultrasonic regimes, acoustic levitation can be realized with standing waves, which are created by the interference between incoming and reflected focused waves. However, the conventional gradient-metasurface approach to focus ultrasonic waves is complex, leading to poor scalability. In this work, we propose a design principle for ultrasonic metalenses, based on metagratings—arrays of discrete scatters with coarser features than gradient metasurfaces. We achieve beam focusing by locally controlling the excitation of a single diffraction order with the use of metagratings, with geometry adiabatically varying over the lens aperture. We show that our metalens can effectively focus impinging ultrasonic waves to a focal point with a full width at half maximum of 0.364 of the wavelength. The focusing performance of the metalens is demonstrated experimentally, validating our proposed approach. This metagrating approach to focusing can be adopted for different operating frequencies by scaling the size of the structure, which has coarse features suitable for high-frequency designs, with potential applications ranging from biomedical science to nondestructive testing.

关键词： Acoustic measurements Acoustic metamaterials Acoustic modeling Acoustic wave phenomena Beam optics Ultrasonics Bloch-Floquet theorem Ultrasound techniques

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Experimentally shock-induced melt veins in basalt: Improving the shock classification of eucrites

arXiv

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arXiv 2022年

作者： Ono, Haruka Kurosawa, Kosuke Niihara, Takafumi Mikouchi, Takashi Tomioka, Naotaka Isa, Junko Kagi, Hiroyuki Matsuzaki, Takuya Sakuma, Hiroshi Genda, Hidenori Sakaiya, Tatsuhiro Kondo, Tadashi Kayama, Masahiro Koike, Mizuho Sano, Yuji Murayama, Masafumi Satake, Wataru Matsui, Takafumi Planetary Exploration Research Center Chiba Institute of Technology 2-17-1 Tsudanuma Narashino Chiba275-0016 Japan Department of Applied Science Okayama University of Science 1-1 Ridaicho Kita-ku Okayama-shi700-0005 Japan The University Museum The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-0033 Japan 200 Monobe Otsu Kochi Nankoku783-8502 Japan Geochemical Research Center Graduate School of Science The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-0033 Japan Center for Advanced Marine Core Research Kochi University 200 Monobe Otsu Kochi Nankoku783-8502 Japan Research Center for Functional Materials National Institute for Materials Science 1-1 Namiki Ibaraki Tsukuba305-0044 Japan Earth–Life Science Institute Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo152-8550 Japan Department of Earth and Space Science Graduate School of Science Osaka University 1-1 Machikaneyama Osaka Toyonaka560-0043 Japan Department of General Systems Studies Graduate School of Arts and Sciences The Univ. of Tokyo 3-8-1 Komaba Meguro-ku Tokyo153-8902 Japan Earth and Planetary Systems Science Program Graduate School of Advanced Science and Engineering Hiroshima University 1-3-1 Kagamiyama Higashi–Hiroshima Hiroshima739-8526 Japan Institute of Geo-Cosmology Chiba Institute of Technology 2-17-1 Tsudanuma Chiba Narashino275-0016 Japan

Basaltic rocks occur widely on the terrestrial planets and differentiated asteroids, including the asteroid 4 Vesta. We conducted a shock recovery experiment with decaying compressive pulses on a terrestrial basalt at Chiba Institute of technology, Japan. The sample recorded a range of pressures, and shock physics modeling was conducted to add a pressure scale to the observed shock features. The shocked sample was examined by optical and electron microscopy, electron back-scattered diffractometry, and Raman spectroscopy. We found that localized melting occurs at a lower pressure (~10 GPa) than previously thought (>20 GPa). The shocked basalt near the epicenter represents "shock degree C" of a recently proposed classification scheme for basaltic eucrites and, as such, our results provide a pressure scale for the classification scheme. Finally, we estimated the total fraction of the basaltic eucrites classified as shock degree C to be ~15% by assuming the impact velocity distribution onto Vesta. © 2022, CC BY-NC-SA.

关键词： Basalt

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A constrained based approach for solving the multi-period single sourcing problem

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AIP Conference Proceedings 2023年第1期2714卷

作者： Adi Suarman Situmorang Herman Mawengkang Tulus Opim Salim Sitompul Graduate School of Mathematics Universitas Sumatera Utara Medan Indonesia Department of Mathematics Universitas Sumatera Utara Medan Indonesia Faculty of Computer Science and Information Technology Universitas Sumatera Utara Medan Indonesia

In this paper we propose a constrained based search algorithm for solving multi-period single-sourcing problems. In particular, we generalize the strategy of releasing nonbasic variables from their bounds, combined with the active constraint method that was developed for the Generalized Assignment Problem to a class of convex assignment problems. We then identify an important subclass of problems, containing many variants of the multi-period single-sourcing problem, as well as variants of the original assignment problems.

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Competitive landscape and industry prospects of techniques in the intersection of computer science and genomics: An analysis based on patent data 2

Competitive landscape and industry prospects of techniques i...

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2nd International Conference on Algorithms, Computing and Artificial Intelligence, ACAI 2019

作者： He, Juan Zhang, Hongying Qiao, Lin Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen China Department of Computer Science and Technology Tsinghua University Beijing China

ISBN: (纸本)9781450372619

computer technology represented by artificial intelligence and big data has begun to combine with genetic technology, and has gradually played an increasingly important role in the fields of gene sequencing, disease diagnosis, and drug development. The intersection of computer science and genomics brings new opportunities for technological innovation in the medical field. In this context, this paper analyzes the published patents in the intersection of computer science and genomics, focusing on the comprehensive competitiveness of countries/regions, the R&D capability of major patent applicants, the content of patented technology and the industrial application of these technologies. Based on the above research, this paper points out China's competitive landscape and industry prospects in this field, and then puts forward relevant suggestions. © 2019 ACM.

关键词： Genome

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Building Hybrid Virtual Network Functions with eXpress Data Path 15

Building Hybrid Virtual Network Functions with eXpress Data ...

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15th International Conference on Network and Service Management, CNSM 2019

作者： Van Tu, Nguyen Yoo, Jae-Hyoung Hong, James Won-Ki Dept. of Computer Science and Engineering POSTECH Pohang Korea Republic of Graduate School of Information Technology POSTECH Pohang Korea Republic of

ISBN: (纸本)9783903176249

Network Function Virtualization (NFV) decouples network functions from dedicated, proprietary hardware into software Virtual Network Functions (VNFs) that can run on standard, commodity servers. One challenge of NFV is to provide high-throughput and low-latency network services. In this paper, we propose eVNF - a hybrid architecture to build and accelerate VNFs with eXpress Data Path (XDP). XDP is a Linux kernel framework that enables high-performance and programmable network processing. However, the programmability of XDP is limited to ensure kernel safety, thus causing difficulties in applying XDP to NFV. eVNF solves this problem by taking a hybrid approach: leave the simple but critical tasks inside the kernel with XDP, and let complex tasks be processed outside XDP, e.g., in user-space. With the hybrid architecture, eVNF allows building fast and flexible VNFs. We used eVNF to build three prototype VNFs: Firewall (eFW), Deep Packet Inspection (eDPI), and Load Balancer (eLB). We evaluated these VNFs in two service function chains using OpenStack. Our experiments showed that eVNF can significantly improve service throughput as well as reduce latency and CPU usage. © 2019 IFIP.

关键词： Network function virtualization

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