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Journal articles on the topic "Operating system service"
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Keromytis, Angelos D., Jason L. Wright, Theo De Raadt, and Matthew Burnside. "Cryptography as an operating system service." ACM Transactions on Computer Systems 24, no. 1 (2006): 1–38. http://dx.doi.org/10.1145/1124153.1124154.
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Boqing Feng, Boqing Feng, Xiaolei Xu Boqing Feng, Congxu Li Xiaolei Xu, Wenbin Liu Congxu Li, and Mohan Liu Wenbin Liu. "GIS-Based Electric Service Resource Management System." 電腦學刊 34, no. 3 (2023): 387–97. http://dx.doi.org/10.53106/199115992023063403029.
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<p>With the increasing investment in railway construction, China’s railway transport network is now very sound, the number of operating miles is growing, and the operating speed has also made a qualitative leap. At the same time, the safety and reliability of the operation of railway signal cables and other electrical equipment has also put forward higher requirements. At the present stage, the management of railway electrical services equipment mainly relies on manual management, which is cumbersome, inefficient and unsuitable for multi-user sharing. At the same time, the structure of railway electrical equipment is complex, and the components of the equipment are prone to aging, which can easily cause equipment failure. How to professionally manage electrical service equipment and improve the safety and reliability of electrical service equipment has become an urgent problem for railway electrical service departments. Geographic Information System (GIS) architecture uses spatial data layering technology to achieve multi-level and proportional display of equipment and facilities, which can provide visual display of professional facilities such as railway engineering, electricity and power supply, and carry out multi-source and multi-temporal intelligent analysis of data, provide geographical information service interface for various professions of engineering and electricity to meet their own functional requirements. Knowledge mapping is a key technology for acquiring knowledge and building a knowledge database in the era of big data. In order to explore the hidden information between railway electrical resources, integrate seemingly independent data into the knowledge base and apply them. In this paper, we design a GIS-based electric service resource management system in combination with knowledge mapping that can make data complete and well-structured after processing scattered and redundant information, and analyze and discuss the system’s architecture, functional requirements, key technologies and development prospects.</p> <p>&nbsp;</p>
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Ali Alzahrani, Taghreed, and Abeer M. Alrashed. "Nutritional Service Experienced During Hospital Stay: Comparison between Centralized Operating System and Contracted Operating System." International Journal of Social Sciences and Artistic Innovations 2, no. 3 (2022): 15–24. http://dx.doi.org/10.35745/ijssai2022v02.03.0003.
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The provision of good healthcare including nutritional services is a challenge for the management of hospitals and health centers. Thus, this study was carried out to measure and compare the performance of the Department of Food and Nutrition in two hospitals with two different operating systems: a centralized operating system and a contracted operating system. A cross-sectional comparative design was used to investigate in-ward food services from the patient’s perspective. Ninety patients participated from Hospital A, a hospital with a centralized operating system, and 125 patients participated from Hospital B, a hospital with a contracted operating system. The result showed that the centralized operating system had inherent advantages over the other system in all dimensions. Specifically, the dimensions of "Staff/Service issues" and "Physical Environment " were identified as the areas that differed between the two hospitals and need to be further developed in the contracted operating system.
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Zhu, Geng Qing, Jian Dong Xu, and Hong Sheng Huang. "Earthquake Disaster Assessment System." Applied Mechanics and Materials 340 (July 2013): 533–37. http://dx.doi.org/10.4028/www.scientific.net/amm.340.533.
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The development of Web Service technology provided an innovational way for data sharing and system integration. The Service-oriented architecture (SOA) dedicated to solve the data operating and sharing between heterogeneous systems. In this paper, an earthquake disaster assessment system was built on the SOA point of view. It integrated the GIS operation and the Web Services for data accessing. With the integration of the services from outside of the system, several of data was available for mapping. The system was used in earthquake emergency response. With the usage of the data from the different system, the earthquake disaster assessment model worked more effective.
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Wang, Wei Min, and Dong Chun He. "An Intelligent Customer Service Representative Operating System." Applied Mechanics and Materials 373-375 (August 2013): 1728–34. http://dx.doi.org/10.4028/www.scientific.net/amm.373-375.1728.
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In this paper, we introduced an intelligent Customer Service Representative (CSR) Operating System. The system contains three modules: Knowledge Management (KM) module, Natural Language Process (NLP) module and CSR Operating (CSRO) module. The KM module manages knowledge. When get query through phone, Internet, Fetion, QQ, etc. from customer, the NLP module understands the query and gives recommended reply. If confirms that the reply is right, NLP module replies the query automatically. The CSRO module confirms that the reply is right or retrieves the right reply quickly from the knowledge base, and gives the reply. The system can increase self-service scale and improve CSR's efficiency. The system has been successfully used in a domestic telecom company since May 2010, and achieved a satisfactory result.
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Subagja, Mukti. "Partnership and Service Operation Systems in Improving the Performance of Samsat Service Operations in West Java." Ilomata International Journal of Social Science 3, no. 2 (2022): 195–206. http://dx.doi.org/10.52728/ijss.v3i2.451.
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The government has regulated the pattern of identification and registration of motor vehicle ownership administration and the pattern of imposition of taxes, including compulsory donations of traffic accident funds through the One Roof Motor Vehicle Administration System, abbreviated as SAMSAT. The performance of service operations at the SAMSAT office in West Java Province has not reached the optimal stage. This is allegedly related to the implementation of service operations and partnership systems. Therefore, this study aims to examine the effect of partnerships and service operating systems on the operational performance of SAMSAT services in West Java. The research method used in this study is survey research. The unit of analysis is the SAMSAT office in West Java Province with an observation unit that is an apparatus from the SAMSAT office in West Java Province spread over 27 districts / cities. Based on a small population size, a census of the entire population is carried out. Causality analysis is used to determine the causal relationship between variables, using PLS. The results of the study show that partnerships and service operating systems have a significant effect on operating performance. System operating performance has a more dominant influence than partnerships in increasing SAMSAT operating performance. The results of this study have implications for the SAMSAT apparatus in West Java Province that efforts to develop operational performance of SAMSAT services can be done by prioritizing the development of service operating systems and supported by the development of closer partnerships with related parties.
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Badri, Sahar, and Daniyal Alghazzawi. "Security and Performance through Operating System Services; Development of an Anti-Hacking System." Computer and Information Science 15, no. 4 (2022): 66. http://dx.doi.org/10.5539/cis.v15n4p66.
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An operating system is intricate software that is simple to compromise. Operating systems control a sizable number of services and updates, which, if not used properly, might provide problems. In this study, an anti-hacking system was created to guard against attacks on the operating system and boost its performance and security. Due to its increasing popularity among non-professional users, Microsoft Windows 8 was chosen in this context. The proposed solution may provide a significant improvement as software and has identified 21 and 33 services for security and operating system performance, respectively. Additionally, each service was individually detailed so that customers could quickly comprehend why they were needed and how to use them.
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Huang, Jiahua, Shuo Liang, Caicong Wu, Zhihong Kou, and Ying Chen. "Evaluation System for Agricultural Machinery Operation Based on Smartphone Sensors." Applied Engineering in Agriculture 38, no. 2 (2022): 227–42. http://dx.doi.org/10.13031/aea.14500.
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HighlightsAn evaluation system for agricultural machinery operation was developed.Quantitatively evaluating agricultural machinery operators can support the precision management for agricultural machinery service organizations.The evaluation system can detect and quantify subtle and transient operating behaviors based on smartphone sensors.The evaluation system can distinguish the relative pros and cons of the operating skills of agricultural machinery operators.Abstract. To support the precision management of agricultural machinery operators, scaled agricultural machinery service organizations require comprehensive evaluations for the operating behaviors of each operator, particularly subtle and transient operating behaviors (e.g., sudden acceleration and unstable operating velocities), which greatly influence the operation quality. In this paper, embedded smartphone sensors were utilized to collect high-frequency motion information for agricultural machinery operation, and then, an Agricultural Machinery Operation Evaluation System (AMOES) was designed to evaluate the operating behaviors of the corresponding operators. In AMOES, four evaluation items (the ratio of useful work, the effect on machinery health, the quality of working operation, and the efficiency of U-turn) were defined specifically for the evaluation of subtle and transient operating behaviors, and they were quantified using motion information. Moreover, a case of a scaled agricultural machinery cooperative in Beijing was performed, and AMOES was used to evaluate the operating behaviors of six operators (two autonomous-driving and four manual-driving operators). The case study indicated that the motion data collected by smartphone sensors could capture subtle and transient operating behaviors and that AMOES could effectively detect and quantify subtle operating behaviors. Keywords: Agricultural machinery, Operating behavior, Operation evaluation, Smartphone sensors.
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Junaidi, Agus, Retno Wardhani, and Masruroh Masruroh. "MEMBANGUN CLOUD COMPUTING UNTUK MANAGEMEN DATA PADA UNIVERSITAS ISLAM LAMONGAN." Jurnal Teknika 10, no. 1 (2018): 975. http://dx.doi.org/10.30736/teknika.v10i1.204.
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To improve the efficiency of work activity management at Islamic University of Lamongan requires a service system that can help the work of management, especially data management service / file then the wake of data management services with website technology built in network of private University, website service is in the cloud Computing Local Service was built from a virtual server with a Debian 8 operating system and a server residing within the Proxmox operating system. The stages of the development of this service system include the creation of cloud services is done through several stages, namely the stage of network design, the stage of installing the operating system Proxmox, the stage of creating a VE server in proxmox, the stage of installing the VE server with debian8, the stage of configuring the VE server to web server and domain Server, implementation and testing stages. And also the stages of making management services through several stages, namely the design phase of the context diagram, the phase make usecase service diagram, create an activity diagram, the stage of making sequence diagram, and interfaces design stage
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Sultan, F., A. Bohra, S. Smaldone, et al. "Recovering Internet Service Sessions from Operating System Failures." IEEE Internet Computing 9, no. 2 (2005): 17–27. http://dx.doi.org/10.1109/mic.2005.45.
Full textDissertations / Theses on the topic "Operating system service"
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Hyden, Eoin Andrew. "Operating system support for quality of service." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319971.
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Barham, Paul Ronald. "Devices in a multi-service operating system." Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627482.
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Roscoe, Timothy. "The structure of a multi-service operating system." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363305.
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Childs, S. O. "Disk quality of service in a general-purpose operating system." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597603.
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Users of general-purpose operating systems run a range of multimedia, productivity, and system housekeeping applications. Many of these applications are disk-bound, or have significant disk usage requirements. CPU scheduling is insufficient to ensure reliable performance for such applications, as it cannot control contention for the disk. User-controllable disk scheduling is necessary; the disk scheduler should respect Quality of Service (QoS) specifications defined by users when scheduling disk requests. Disks have a number of distinctive features that influence scheduler design: context-switches that involve seek operations are expensive, disk operations are non-preemptible, and the cost of data transfer varies according to the amount of seek overhead. Any new scheduler must recognise these factors if it is to provide acceptable performance. We present a new disk scheduler for Linux-SRT, a version of Linux with support for CPU QoS. This disk scheduler provides multiple scheduling classes: periodic allocation, static priority, best-effort, and idle. The scheduler makes disk QoS available as a low-level system service, independent of the particular file system used. Applications need not be modified to benefit from disk QoS. The structure of the Linux disk subsystem causes requests from different clients to be executed in an interleaved fashion. This results in many expensive seek operations. We implement laxity, a technique for batching together multiple requests from a single client. This feature that greatly improves the performance of applications performing synchronous I/O, and provides better isolation between applications. We perform experiments to test the effectiveness of our research system in typical scenarios. The results demonstrate that the system can be used to protect time-critical applications from the effects of contention, to regulate low-importance disk-bound tasks, and to limit the disk utilisation of particular processes (allowing resource partitioning). We use the accounting features of our disk scheduler to measure the disk resource usage of typical desktop applications. Based on these measurements, we classify applications and suggest suitable scheduling policies. We also present techniques for determining appropriate parameters for these policies. Scheduling features are of little use unless users can employ them effectively. We extend Linux-SRT's QoS architecture to accommodate control of disk scheduling; the resulting system provides a coherent interface for managing QoS across multiple devices. The disk scheduler exports status information to user space; we construct tools for monitoring and controlling processes' disk utilisation.
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Manzalini, Antonio. "An operating system for 5G Edge Clouds." Thesis, Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0013.
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La technologie et les conducteurs socio-économiques créent les conditions d'une transformation profonde, appelée "Softwarization", du Telco et des TIC. Réseaux définis par logiciel et réseau Fonctions de virtualisation sont deux des principales technologies permettant ouvrant la voie à cette transformation. Softwarization permettra de virtualiser toutes les fonctions de réseau et de services d'une infrastructure de Telco et de les exécuter sur une plates-formes logicielles, entièrement découplés de l'infrastructure physique sous (presque basé sur du matériel standard). Tous les services seront fournis en utilisant un «continuum» des ressources virtuelles (traitement, de stockage et de communication) avec un investissement en capital initial pratiquement très limité et avec des coûts d'exploitation modestes. 5G sera la première exploitation de Softwarization. 5G sera une infrastructure distribuée massivement dense, intégrant le traitement, le stockage et (fixes et radio) des capacités de mise en réseau. En résumé, l'objectif général de cette thèse a étudié les défis techniques et les opportunités d'affaires apportées par le "Softwarization" et 5G. En particulier, la thèse propose que le 5G devra avoir une sorte de système d'exploitation (5GOS) capable de fonctionner les RAN et de base et les infrastructures fixes convergés. Les contributions de cette thèse ont été: 1) définir une vision pour les futures infrastructures 5G, des scénarios, des cas d'utilisation et les exigences principales: 2) définissant l'architecture fonctionnelle d'un système d'exploitation pour 5G; 3) la conception de l'architecture logicielle d'un 5GOS pour le "bord Cloud"; 4) comprendre les impacts technico-économiques de la vision et 5GOS, et les stratégies les plus efficaces pour l'exploiter<br>Technology and socio-economic drivers are creating the conditions for a profound transformation, called “Softwarization”, of the Telco and ICT. Software-Defined Networks and Network Functions Virtualization are two of the key enabling technologies paving the way towards this transformation. Softwarization will allow to virtualize all network and services functions of a Telco infrastructure and executing them onto a software platforms, fully decoupled from the underneath physical infrastructure (almost based on standard hardware). Any services will be provided by using a “continuum” of virtual resources (processing, storage and communications) with practically very limited upfront capital investment and with modest operating costs. 5G will be the first exploitation of Softwarization. 5G will be a massively dense distributed infrastructure, integrating processing, storage and (fixed and radio) networking capabilities. In summary, the overall goal of this thesis has been investigating technical challenges and business opportunities brought by the “Softwarization” and 5G. In particular, the thesis proposes that the 5G will have to have a sort of Operating System (5GOS) capable of operating the converged fixed and RAN and core infrastructures. Main contributions of this thesis have been: 1) defining a vision for future 5G infrastructures, scenarios, use-cases and main requirements; 2) defining the functional architecture of an Operating System for 5G; 3) designing the software architecture of a 5G OS for the “Edge Cloud”; 4) understanding the techno-economic impacts of the vision and 5GOS, and the most effective strategies to exploit it
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Manzalini, Antonio. "An operating system for 5G Edge Clouds." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2016. http://www.theses.fr/2016TELE0013.
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La technologie et les conducteurs socio-économiques créent les conditions d'une transformation profonde, appelée "Softwarization", du Telco et des TIC. Réseaux définis par logiciel et réseau Fonctions de virtualisation sont deux des principales technologies permettant ouvrant la voie à cette transformation. Softwarization permettra de virtualiser toutes les fonctions de réseau et de services d'une infrastructure de Telco et de les exécuter sur une plates-formes logicielles, entièrement découplés de l'infrastructure physique sous (presque basé sur du matériel standard). Tous les services seront fournis en utilisant un «continuum» des ressources virtuelles (traitement, de stockage et de communication) avec un investissement en capital initial pratiquement très limité et avec des coûts d'exploitation modestes. 5G sera la première exploitation de Softwarization. 5G sera une infrastructure distribuée massivement dense, intégrant le traitement, le stockage et (fixes et radio) des capacités de mise en réseau. En résumé, l'objectif général de cette thèse a étudié les défis techniques et les opportunités d'affaires apportées par le "Softwarization" et 5G. En particulier, la thèse propose que le 5G devra avoir une sorte de système d'exploitation (5GOS) capable de fonctionner les RAN et de base et les infrastructures fixes convergés. Les contributions de cette thèse ont été: 1) définir une vision pour les futures infrastructures 5G, des scénarios, des cas d'utilisation et les exigences principales: 2) définissant l'architecture fonctionnelle d'un système d'exploitation pour 5G; 3) la conception de l'architecture logicielle d'un 5GOS pour le "bord Cloud"; 4) comprendre les impacts technico-économiques de la vision et 5GOS, et les stratégies les plus efficaces pour l'exploiter<br>Technology and socio-economic drivers are creating the conditions for a profound transformation, called “Softwarization”, of the Telco and ICT. Software-Defined Networks and Network Functions Virtualization are two of the key enabling technologies paving the way towards this transformation. Softwarization will allow to virtualize all network and services functions of a Telco infrastructure and executing them onto a software platforms, fully decoupled from the underneath physical infrastructure (almost based on standard hardware). Any services will be provided by using a “continuum” of virtual resources (processing, storage and communications) with practically very limited upfront capital investment and with modest operating costs. 5G will be the first exploitation of Softwarization. 5G will be a massively dense distributed infrastructure, integrating processing, storage and (fixed and radio) networking capabilities. In summary, the overall goal of this thesis has been investigating technical challenges and business opportunities brought by the “Softwarization” and 5G. In particular, the thesis proposes that the 5G will have to have a sort of Operating System (5GOS) capable of operating the converged fixed and RAN and core infrastructures. Main contributions of this thesis have been: 1) defining a vision for future 5G infrastructures, scenarios, use-cases and main requirements; 2) defining the functional architecture of an Operating System for 5G; 3) designing the software architecture of a 5G OS for the “Edge Cloud”; 4) understanding the techno-economic impacts of the vision and 5GOS, and the most effective strategies to exploit it
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McDonald, Ian Lindsay. "Memory management in a distributed system of single address space operating systems supporting quality of service." Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/5427/.
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The choices provided by an operating system to the application developer for managing memory came in two forms: no choice at all, with the operating system making all decisions about managing memory; or the choice to implement virtual memory management specific to the individual application. The second of these choices is, for all intents and purposes, the same as the first: no choice at all. For many application developers, the cost of implementing a customised virtual memory management system is just too high. The results is that, regardless of the level of flexibility available, the developer ends up using the system-provided default. Further exacerbating the problem is the tendency for operating system developers to be extremely unimaginative when providing that same default. Advancements in virtual memory techniques such as prefetching, remote paging, compressed caching, and user-level page replacement coupled with the provision of user-level virtual memory management should have heralded a new era of choice and an application-centric approach to memory management. Unfortunately, this has failed to materialise. This dissertation describes the design and implementation of the Heracles virtual memory management system. The Heracles approach is one of inclusion rather than exclusion. The main goal of Heracles is to provide an extensible environment that is configurable to the extent of providing application-centric memory management without the need for application developers to implement their own. However, should the application developer wish to provide a more specialised implementation for all or any part of Heracles, the system is constructed around well-defined interfaces that allow new implementations to be "plugged in" where required. The result is a virtual memory management hierarchy that is highly configurable, highly flexible, and can be adapted at run-time to meet new phases in the application's behaviour. Furthermore, different parts of an application's address space can have different hierarchies associated with managing its memory.
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Yankov, Daniel Y. "Discrete Event System Modeling Of Demand Responsive Transportation Systems Operating In Real Time." Scholar Commons, 2008. https://scholarcommons.usf.edu/etd/575.
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Demand responsive transportation is a variable route service of passengers or freight from specific origin(s) to destination(s) in response to the request of users. Operational planning of DRT system encompasses the methods to provide efficient service to the passengers and to the system operators. These methods cover the assignments of vehicles to transportation requests and vehicle routings under various constraints such as environmental conditions, traffic and service limitations. Advances in the information and communication technologies, such as the Internet, mobile communication devices, GIS, GPS, Intelligent Transportation Systems have led to a significantly complex and highly dynamical decision making environment. Recent approaches to DRT operational planning are based on "closed information loop" to achieve a higher level of automation, increased flexibility and efficiency.
Intelligent and effective use of the available information in such a complex decision making environment requires the application of formal modeling and control approaches, which are robust, modular and computationally efficient. In this study, DRT systems are modeled as Discrete Event Systems using Finite Automata formalism and DRT real time control is addressed using Supervisory Control Theory. Two application scenarios are considered; the first is based on air-charter service and illustrates uncontrolled system model and operational specification synthesis. The automatic synthesis of centralized and modular supervisors is demonstrated. The second scenario is a mission critical application based on emergency evacuation problem. Decentralized supervisory control architecture suitable for accommodating the real-time contingencies is presented.
Conditions for parallel computation of local supervisors are specified and the computational advantages of alternative supervisory control architectures are discussed. Discrete event system modeling and supervisory control theory are well established and powerful mathematical tools. In this dissertation, they are shown to be suitable for expressing the modeling and control requirements of complex and dynamic applications in DRT. The modeling and control approaches described herein, coupled with the mature body of research literature in Discrete Event Systems and Supervisory Control Theory, facilitate logical analysis of these complex systems and provide the necessary framework for development of intelligent decision making tools for real time operational planning and control in a broad range of DRT applications.
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Lilkaer, Fredrik Peter. "Enhancing Quality of Service metrics for high fan-in Node.js applications by optimising the network stack : Leveraging IX: The Dataplane Operating System." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176504.
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This thesis investigates the feasibility of porting Node.js, a JavaScript web application framework and server, to IX, a dataplane operating system specifically developed to meet the needs of high performance microsecond-computing type of applications in a datacentre setting. We show that porting requires extensions to the IX kernel to support UDS polling, which we implement. We develop a distributed load generator to benchmark the framework. The results show that running Node.js on IX improves throughput by up to 20.6\%, latency by up to 5.23×, and tail latency by up to 5.68× compared to a Linux baseline. We show how server side request level reordering affect the latency distribution, predominantly in cases where the server is load saturated. Finally, due to various limitations of IX, we are unable at this time to recommend running Node.js on IX in a production environment, despite improved metrics in all test cases. However, the limitations are not fundamental, and could be resolved in future work.<br>Detta exjobb undersöker möjligheterna till att använda IX, ett specialiserat dataplansoperativsystem avsett för högpresterande datacentertillämpningar, för att köra Node.js, ett webapplikationramverk för JavaScript-applikationer. För att porta Node.js till IX krävs att vi utvidgar IX med funktionalitet för samtidig pollning av Unix Domain Sockets och nätverksflöden, vilket visas samt genomförs. Vidare utvecklas en distribuerad lastgenerator för att utvärdera applikationsramverket under IX jämfört baslinje som utgörs av en omodifierad Linuxdistribution. Resultaten visar att throughput förbättras med upp till 20.6\%, latens upp till 5.23× och tail latency upp till 5.68×. Sedermera undersöker vi huruvida latensvariansen ökat på grund av request-omordningar på serversidan, vilket tycks vara fallet vid hög serverbelastning, även om andra faktorer tycks ha större inverkan vid låg serverbelastning. Slutligen, även om alla storheter förbättrats vid alla observerade mätpunkter, kan ännu inte vidspredd adoption av IX för att köra Node.js applikationer rekommenderas, främst på grund av problem med horisontal skalning samt problem att ingå som frontend-server i en klassisk tiered-datacentre arkitektur.
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Poellabauer, Christian. "Q-Fabric: System Support for Continuous Online Quality Management." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-04082004-134256/unrestricted/poellabauer%5Fchristian%5F200405%5Fphd.pdf.
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Thesis (Ph. D.)--Computing, Georgia Institute of Technology, 2004.<br>Pande, Santosh, Committee Member ; Pu, Calton, Committee Member ; Schwan, Karsten, Committee Chair ; Franke, Hubertus, Committee Member ; Eisenhauer, Greg, Committee Member. Vita. Includes bibliographical references (leaves 158-169).
Books on the topic "Operating system service"
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Giese, Eckart. Session Service Interface for the BS2000 Operating System. GMD, 1985.
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Browning, Sally A. UNIX System V print service administration. PTR Prentice Hall, 1993.
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Grotegut, Martin. Windows 7: In Unternehmensnetzen mit Service Pack 1, IPv4, IPv6. Springer, 2011.
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Office, General Accounting. Parks and recreation: Problems with fee system for resorts operating on Forest Service lands : report to the Honorable Howard M. Metzenbaum, U.S. Senate. GAO, 1988.
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Rajkumar, R., ed. Operating Systems and Services. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5041-9.
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Peterson, Baird. XENIX commands and DOS cross development services: Programmer's rapid reference. Van Nostrand Reinhold, 1992.
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Aithal, Avinash, Andrew Wainwright, and Steve Atkins. Distribution System Operation: Flexibility Services. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-92905-2.
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Hirst, Eric. Ancillary-service details: Operating reserves. Oak Ridge National Laboratory, 1997.
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Patrick, Kappeler, and International Business Machines Corporation. International Technical Support Organization., eds. System z Cryptographic Services and z/OS PKI Services. IBM, International Technical Support Organization, 2008.
Find full textBook chapters on the topic "Operating system service"
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Milanovic, Nikola, and Miroslaw Malek. "Service-Oriented Operating System: A Key Element in Improving Service Availability." In Service Availability. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72736-1_4.
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Rammig, Franz J., Yuhong Zhao, and Sufyan Samara. "On-Line Model Checking as Operating System Service." In Software Technologies for Embedded and Ubiquitous Systems. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-10265-3_13.
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Campbell, Andrew, Geoff Coulson, and David Hutchison. "A multimedia enhanced transport service in a Quality of Service Architecture." In Network and Operating System Support for Digital Audio and Video. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-58404-8_12.
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Miyai, Takeshi, and Shin’ichi Yuta. "Design and Implementation of Distributed Controller and its Operating System for Autonomous Mobile Robot Platform." In Field and Service Robotics. Springer London, 1998. http://dx.doi.org/10.1007/978-1-4471-1273-0_50.
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Ramakrishnan, K. K., Lev Vaitzblit, Cary Gray, et al. "Operating system support for a video-on-demand file service." In Network and Operating System Support for Digital Audio and Video. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-58404-8_20.
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Bentaleb, Hanan. "Quality of Service Object-Oriented Modeling at the Operating System Level." In OOIS’97. Springer London, 1998. http://dx.doi.org/10.1007/978-1-4471-1525-0_24.
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Follini, Camilla, Michael Terzer, Carmen Marcher, Andrea Giusti, and Dominik Tobias Matt. "Combining the Robot Operating System with Building Information Modeling for Robotic Applications in Construction Logistics." In Advances in Service and Industrial Robotics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48989-2_27.
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Ma, Bo, Yi Zhang, and Xingguo Shi. "Applying Component-Based Meta-service in Liquid Operating System for Pervasive Computing." In Embedded Software and Systems. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11535409_58.
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Jamin, Sugih, Scott Shenker, Lixia Zhang, and David D. Clark. "An admission control algorithm for predictive real-time service (extended abstract)." In Network and Operating System Support for Digital Audio and Video. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/3-540-57183-3_32.
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Wolfinger, Bernd, and Mark Moron. "A continuous media data transport service and protocol for real-time communication in high speed networks." In Network and Operating System Support for Digital Audio and Video. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/3-540-55639-7_15.
Full textConference papers on the topic "Operating system service"
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Shoemaker, Lewis, Jim Crum, Debajyoti Maitra, Ruben Muro, and Marlena Neighbor. "Recent Experience with Stainless Steels in FGD Air Pollution Control Service." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11167.
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Abstract Over the years, many materials have been used in the construction of components of wet limestone flue gas desulfurization (FGD) air pollution control systems ranging from duplex and austenitic stainless steels to highly alloyed grades of nickel-base corrosion-resistant alloys. Some recently constructed systems have experienced severe corrosion problems after short term operation, in some cases in less than one year. To better understand the corrosive attack and the conditions under which various materials may be used, operating systems were examined and both laboratory and field tests were conducted. Localized corrosion of materials in operating scrubbers was detected and examined. Conditions in various areas of the absorber vessels were investigated with conditions in some zones found to be considerably more aggressive that those in others. Samples of several different grades of stainless steels and alloys were exposed in an operating scrubber vessel to determine which materials were suitable for the conditions experienced in the FGD system. While the attack of the duplex steel continued, super-austenitic stainless steel and nickel-base alloy specimens were resistant.
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Agarwala, Vinod S. "Control of Corrosion and Service Life." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04257.
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Abstract Service life of any weapon system depends upon factors that impart long-term durability and robustness to its structure and subsystems in the operating environment, while sustaining its functional properties. When the operating environment is corrosive and highly stressful to component materials used, corrosion effects become dominant and compromise the system integrity. Invariably operating environments dictate the chemical (more accurately electrochemical), physical and mechanical behavior of materials used in the weapon system, be it an aircraft, ship, land vehicle, tank, missile or submarine. In other words, the more corrosive the environment, the lower is the service life. The paper describes some basic principles and guidelines on corrosion control and rules that could be easily followed to ascertain some specified service life and reduce total ownership costs.
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Tanuma, Naoki. "What is Optimum Protective Coating System for Cyclic-Temperature Service?" In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11068.
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Abstract In Oil and Gas plant facilities, protective coating system selection for cyclic temperature condition and under insulation has become a key concern in recent years. Severe cyclic temperature conditions in LNG plant facility is observed in Dehydration Unit where operating temperatures ranges from +25 °C to +300 °C with a few cycles per day, for carbon steel components with and without insulation. In such severe conditions, there are few protective coating systems available for carbon steel surfaces. NACE(1) Standard SP01981, “The Control of Corrosion Under Thermal Insulation and Fireproofing Materials – A Systems Approach”, includes such as TSA: Thermal Spray Aluminum (CS-5), IMM: Coating with Inert Multi-Polymeric Matrix (CS-6) or IOZ: Inorganic Zinc Primer with topcoat (CS-8). These protective coating systems will be applied at several locations such as vendor shops, module yards and shops/fields at construction sites. After completion of coating works, these articles are exposed to corrosive atmospheric environment during storage, transportation and construction until plant start-up, typically after a couple of years. Thus, consideration must also be given to the protective coating durability at ambient temperature in corrosive environments. A comparison between “TSA”, “IMM”, and “IOZ with IMM”, with respect to both cyclic temperature heat resistance and ambient temperature corrosion protection is investigated in this paper. In conclusion, it is suggested that “TSA” and “IOZ with IMM” are optimum protective coating system for cyclic temperature service in coastal area corrosive environment. In addition, IMM without IOZ may also be applied with sufficient evaluation beforehand.
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Rana, Ahmad Raza Khan, and Graham Brigham. "Moisture Management in Thermal Insulations for In-service and Out of Service Pipelines." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17594.
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Abstract CUI (Corrosion Under Insulation) is a key degradation in facilities and pipelines and known to drive 40% - 60% failures in the piping systems. CUI is known to trigger from the soaked insulations that are held in contact with the metal(s). Although high operating temperatures are perceived to reduce CUI risks, integrity issues happen due to condensation or sweating once the pipe/ equipment is brought through cyclic temperatures or transient conditions. With lower or even ambient temperatures, the content of liquid moisture within the insulation increases which ends up exploiting CUI risk. This issue of soaking becomes more pronounced in mothballed equipment/ pipes as there is no moth-balling method known that can keep the insulation dry once the pipeline is out of service. This article addresses the case study where the soaked insulations on pre-existing operational and out-of-service multi-kilometer pipelines were trialed for moisture retention affinity. Moisture readings were taken on candidate configuration on a biweekly basis over a period of 7 months. Both i.e., operational, and mothballed lines were also trialed with a novel moisture removal system namely Insulation Ventilation System employing low point drains, ventilation windows, and perforated stand-offs between the insulation and external jacketing. The operational segments of the pipeline with moisture removal systems in place exhibited the least moisture trapping and reduced TOW (time of wetness).
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Bock, Peter P. "Service Life, Reliability and Reparability of Systems for Preventing Corrosion Under Insulation." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01661.
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Abstract There are currently several competitive protective coating systems commonly considered for use in hot, cyclic carbon steel operating equipment which is to be insulated (CUI, Corrosion Under Insulation Service). Performance characteristics of these different coating systems overlap, but vary significantly in ways which can become important (and costly) during the service life of a system. This paper compares the initial and long term costs, performance characteristics, expected service life as well as ease of repair of these CUI systems using lab test results and field performance experience obtained from users, third-party labs and vendors of the various systems. Service life of any CUI system is strongly affected by quality of surface preparation, quality of application, and by local conditions during the service life, but the coating system largely determines the cost of repair or replacement, and whether at initial failure the service life can be extended or the system has to be completely replaced.
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Crompton, Andrew M., and Peter A. Wood. "Predictive Analytics for Safety Related Service Water Systems." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4368.
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Abstract As the age of systems, structures, and components (SSC) in nuclear power plants increase so does the level of effort to manage their aging. Half of the nation’s nuclear plants are over 30 years old with essentially all of the remainder older than 20 years. For safety related service water systems, operating experience (OE) has shown that life spans of 25 years or more can be achieved without significant or concerted attention to mitigate internal corrosion. Nonetheless, plants are being challenged, by regulators and plant management, to define where their service water systems are in the life cycle management process and further predict, with enhanced confidence, the future levels of required maintenance, inspections, and engineering support. A significant portion of service water piping can be buried and not easily assessed. OE demonstrates that the condition of internal surfaces (i.e. internal corrosion) of buried and underground piping can be inferred from inspections of internal surfaces of above ground piping where the component material, environment and aging effects are similar. The purpose of this paper is to discuss a statistical method for quantitatively predicting piping thickness and leakage over time, provide context for the interpretation of results, and define confidence for those results. This will include a case history that demonstrates the application of a statistical model for buried and above grade segments of a service water system, benchmarking the model’s predictions, and the use of the model to prepare and plan maintenance and financial support up to license renewal and into the period of extended operation (PEO).
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Senkowski, E. Bud. "Corrosion: the Destructive Stowaway on Marine Vessels Determining the Cost-Benefit of Protective Marine Coating Systems." In SSPC 2015 Greencoat. SSPC, 2015. https://doi.org/10.5006/s2015-00056.
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Abstract Marine coating systems installed aboard commercial and military vessels are exposed to extremely aggressive environmental conditions during maritime operation. A key element in prolonging the useful life of any ship, both commercial and military, lies in the selection and installation of cost-effective corrosion control methods and materials at newbuild, followed by an effective painting and preservation program to minimize the corrosive effects of operating in a marine environment, extend the service life and maintenance requirements of the installed systems, and thereby reduce the total operating cost (TOC) for the vessel. This paper provides guidelines for calculating approximate installed costs of coating systems, expected coating service lives for each system identified, and methods for determining the most cost-effective systems to use, the effect of maintenance sequences on long-term costs and system performance is also reviewed. The analysis utilizes trade studies from coating manufacturers, scholarly papers, technical reports, engineering studies and specifications from maritime and naval sources, and technical and consensus organizations that focus on the design, implementation, and testing of marine coating systems. New coating technologies that show promise of providing enhanced corrosion protection are identified and their relative contribution to lowering the operational costs of shipboard systems are demonstrated through the use of software programs that predict coating service life and maintenance requirements following initial installation. Corrosion is the silent stowaway that travels on every ship, regardless of their design or nature of maritime service. A key element in prolonging the useful life of any ship, both military and commercial, lies in the selection and installation of cost-effective corrosion control methods and materials during initial construction, followed by an effective painting and preservation program to minimize the corrosive effects of operating in a marine environment. Marine coating systems installed aboard commercial and military vessels are exposed to extremely aggressive environmental conditions during maritime operation. They include exposures to: seawater, freeze/thaw cycling, the ultraviolet component of sunlight, mechanical damage, stack exhaust, temperature extremes, erosion, and more. Marine vessels, whether they are in commercial or military service, contain common elements in their construction. These areas include: topsides and superstructure, deck, interior crew spaces, cargo hold, cargo tanks, ballast tanks, and underwater hull. Coating manufacturers, commercial shipping consensus organizations, and the international military community have identified paints and specialized coating systems with superior performance, durability, and economic effectiveness for maritime service.i,ii Important factors like ship mission, operating schedules, areas of operation, and drydocking intervals for maintenance will also influence the selection and type of coating system to be applied. With the development of high strength steels, scantling dimensions have been reduced to lower the weight of vessels to reduce fuel consumption. However reduced plate thicknesses have increased the potential of structural failure through corrosion. Coating selection will also impact the cleaning and painting requirements for the shipboard maintenance of painted surfaces. Additionally, the corrosion the protective coating systems over various substrates have also been evaluated. These factors have been considered during the course of this study. Coating repairs at sea are regarded as temporary and when detected, only made to avoid component failure before laying up the vessel for depot repairs. For instance, ballast tanks cannot be inspected unless they are drained and cleaned. These operations are typically performed when the vessel is in for shipyard or depot repairs. Over the past 40 years, new technologies in protective coatings and preservation systems for marine applications have been developed that show promise of providing greater corrosion protection and reduced maintenance. A plethora of data exists in such information sources as: trade studies from coating manufacturers, scholarly papers, technical reports, engineering studies and specifications from such organizations and agencies as: Naval Sea System Command (NAVSEA), Office of Naval Research (ONR), department of Department of Defense (DoD), US Bureau of Ships, National Association of Corrosion Engineers (NACE) Symposia, Marine industry Symposia, Military Sealift Command (MSC), International Maritime Organization) IMO, National Institute for Standards and Technology (NIST), American Bureau of Shipping (ABS), U.S. Corps of Engineers, American Society for Testing and Materials (ASTM), International Standards Organization (ISO), and the Society for Protective Coatings (SSPC). Existing statistical methodology was used to develop information relative to the prediction of coating service life and maintenance requirements following initial installation. A principal source in this area was data published by the SSPC and NACE.
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Wei, Muan, Noelia Diaz, and Zoe Coull. "The Implementation of a Corrosion Management System (CMS) in an Operating Gold Mine – Lessons Learned." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19385.
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Abstract It is known that corrosion has significant impacts on all types of assets with respect to cost, health and safety, environment, community, and stewardship; effective corrosion management reduces losses, extends the service life of assets, and prevents catastrophic failures. Corrosion Management System (CMS) is a systematic approach to manage corrosion risks through policies, processes, and procedures in an organization; and it should be developed, implemented, maintained, and continuously improved for not only the internal team, but also external suppliers and contractors. This paper focuses on the lessons learned from the process of implementing a CMS in an operating gold mine. The obstacles and constraints during the process as well as the approaches to overcome them will be discussed. The structured process of dealing with technical corrosion risks will also be illustrated with case studies, including the benefit of corrosion monitoring and data collection for decision making.
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Cheaitani, Atef, Pietro Pedeferri, Bruno Bazzoni, Philip Karajayli, and Ray Dick. "Performance of Cathodic Prevention System of Sydney Opera House Underbroadwalk after 10 Years of Operation." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06342.
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Abstract Cathodic prevention (CPrev) of reinforced concrete structures is used to improve the corrosion resistance of reinforcement for marine structures that are expected to suffer from chloride-induced corrosion during their service life. As a part of a major rehabilitation programme to the Sydney Opera House during 1995-1996, a CPrev system was installed to the reinforced concrete pre-cast elements of the Western Underbroadwalk of the Sydney Opera House. This paper will assess the cathodic prevention system performance after nearly 10 years of operation and will make a comparison between the designed and operating cathodic prevention current density of the system.
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Miller, Robert N., and R. L. Schuessler. "Predicting Service Life of Aircraft Coatings in Various Environments." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89600.
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Abstract There is a great need for a method of evaluating aircraft coating systems and predicting their performance under a variety of service conditions. This paper describes an accelerated simulated service test and a procedure for using the test results to predict the time to initial breakdown of the coating and the optimium time for complete repaint of aircraft operating in various environments. The predictive coating degradation procedure involves a statistical analysis which is based on reliability theory. Multiple coated panels are subjected to an environmental spectrum which includes the major degradation factors encountered by aircraft coating systems; exposure to ultraviolet radiation, heat, high humidity, salt water, and deformation at sub-zero temperatures. A FORTRAN program was developed which uses the results of the environmental test to (1) predict the service life of different coating systems in an average environment or (2) the service life of a specific coating system in a variety of environments.
Reports on the topic "Operating system service"
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Meitzler, W. D. Joint Service Common Operating Environment (COE) Common Geographic Information System functional requirements. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7249849.
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Meitzler, W. D. Joint Service Common Operating Environment (COE) Common Geographic Information System functional requirements. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10172533.
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Bulatetska, Lesya V., Vitaliy V. Bulatetskyi, Tetyana O. Hryshanovych, Yulia S. Pavlenko, Tetyana I. Cheprasova, and Andrey V. Pikilnyak. Operation system features and cloud services for lecturer work. [б. в.], 2021. http://dx.doi.org/10.31812/123456789/4443.
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The work proposes a conception of setup and use of teacher’s or lecturer’s workspace using common software and hardware products. The research object is a system built by using operating system capabilities in conjunction with office suite and public cloud service, as a foundation for teacher’s digital workspace. Research is made on how to set up, scale, and operate such a system, by studying the experience of national and foreign scientists and teachers, and using our own experience in educational processes, and working with operating systems and cloud services. As a result, we got a system which is easy to set up, learn, and apply by teachers without significant experience working remote education systems, and could be used for initial learning of remote education principles. It could be used as an initial step before migrating to specialized remote education systems. In the future, the system itself could be improved by adding additional objects into the system and a higher integration level between objects and external subjects.
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Falconer, David G. L51774 Remote Sensing of Hazardous Ground Movement about Buried Gas Transmission Lines. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0011973.
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Reviews the available sensors for monitoring hazardous ground movement. Our review was limited to airborne and spaceborne sensors for access, performance, and productivity considerations. It was observed that certain ground movement is comparatively localized, e.g., earthquake faulting, while other activity may extend for thousands of kilometers, e.g., frost heave. Accordingly, we have considered two operating modes for the sensor-platform system, namely, site-by-site and continuous corridor. To determine the suitability of the candidate sensors for pipeline monitoring, we have assessed the expected performance, operational aspects, and cost of each sensor-platform combination as a function of operating mode. Finally, we have developed a business model for (1) operation of the recommended sensor systems by fee-for-service contractors; (2) analysis of the collected data by image-analysis specialists; and (3) use of the survey products by pipeline engineers.
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Kelbesa, Megersa. Digital Service Taxes and Their Application. Institute of Development Studies (IDS), 2021. http://dx.doi.org/10.19088/k4d.2021.135.
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Many developing economies have seen a rise in e-commerce activity within their borders, and a decline in income from traditional industries as a result of COVID-19, meaning the digital economy offers a potentially unexploited source of tax revenue. . As a result, more developing countries may soon begin adopting some sort of digital tax. The economic activities which may be subject to the Digital Services Tax (DST) may vary from country to country. It will, therefore, be necessary for businesses operating in multiple jurisdictions across developing countries to keep up with the changes in digital taxes. Before implementing a DST scheme, developing countries are advised to perform an in-depth cost-benefit analysis and due considerations. Some developing (and several developed) countries have already unilaterally implemented a “provisional” DST system. Other developing countries are on the process of implementing DST or have simply announced that they will implement a DST soon. Although most of the countries so far actively working on DST (are rich countries, a growing list of developing countries are joining the process. Some examples include the following: Malaysia, Indonesia, Kenya, Nigeria, Argentina and, Chile. It is important to mention that the literature on DST is very limited – although growing, and the evidence base around the economic impacts is particularly scarce. This is partly due to the quite recent nature of DST implementation. The evidence is even scarcer for developing countries – Due to these limitations, this rapid evidence review looks at different types of available literature – including reports and blogs issued by international financial institutions and development agencies. The rest of the report will give an overview of key proposed approaches to tax the digital economy, provide a very brief account of the economic impact of DST, provide a brief mapping of the implementation of digital service taxes in developing countries, provide a brief description of each DST system and about the economic impact of the DST, finally a brief account or attributes of a “good” DST system.
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Tzonev, Nick, and Eric Pesty. PR-396-113704-R02 Methods for Detection of Gases and VOCs from Floating Roofs of Aboveground Storage Tanks. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010794.
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Describes the development of an automated system that can effectively replace the EPA-mandated in-service and out-of-service inspections of the Internal Floating Roofs (IFR) in Aboveground Storage Tanks (ASTs). The ultimate goal is to increase the internal inspection interval to twenty (20) years, which would coincide with the interval used by the American Petroleum Institute's (API) Standard 653 for out-of-service general mechanical inspection of the entire tank. Extending the IFR internal inspection interval will eliminate the negative elements associated with additional AST entry events and will reduce VOC emissions associated with IFR landing and tank degassing/cleaning, while minimizing safety risks and saving operating capital.
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Larkin, Lance, Thomas Carlson, William D’Andrea, Andrew Johnson, and Natalie Myers. Network development and autonomous vehicles : a smart transportation testbed at Fort Carson : project report summary and recommendations. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45941.
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In this work, a smart transportation testbed was utilized at Fort Carson to demonstrate three use cases for the primary purpose to plan, develop, demonstrate, and employ autonomous vehicle technologies at military installations and within the surrounding communities to evaluate commercially available Connected and Automated Vehicles and the potential to reduce base operating costs, improve safety and quality of life for military service members and their families, and deliver services more efficiently and effectively. To meet this purpose, an automated vehicle shuttle, an unmanned aerial system, and a wireless network were used and tested during the project. Results for the automated shuttle indicated that despite the quantity of data generated by operations, the contractors may not be ready to share information in a readily usable format. Additionally, successful use by the public is predicated on both knowing their mobility pat-terns and staff members promoting trust in the technology to prospective riders. Results for the unmanned aerial system showed successful identification of foreign object debris and runway cracks at the airfield. The wireless network is now operational and is used for additional work which utilizes the installed traffic cameras.
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Kerber, Steve, and Robin Zevotek. Fire Service Summary Report: Study of Residential Attic Fire Mitigation Tactics and Exterior Fire Spread Hazards on Firefighter Safety. UL Firefighter Safety Research Institute, 2014. http://dx.doi.org/10.54206/102376/pxtq2256.
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Attic fires pose many hazards for the fire service. When a fire occurs in an attic, it is common it goes unnoticed/reported until smoke or flames are visible from the outside of the structure. Because they take longer to detect, attic fires are more dangerous for firefighters and residents. In a fire situation, the attic ventilation system, which is designed to reduce moisture accumulation by drawing fresh air low from the eaves and exhausting moisture laden warm air near the peak, create an optimal fire growth and spread situation by supplying oxygen to the fire and exhausting hot gases. An estimated 10,000 residential attic fires are reported to U.S. fire departments each year and cause an estimated 30 civilian deaths, 125 civilian injuries and $477 million in property loss. The location of the attic creates several difficulties for the fire service. Firefighters must decide whether to fight the fire from inside the structure, from the outside or a combination of the two. This the decision is complicated by the constant hazard of ceiling collapse, which has the potential to rapidly deteriorate conditions in the living spaces. A piece of gypsum board may fall or be pulled from the ceiling making the relatively clear and cool conditions in the living space change very quickly endangering firefighters executing a search and rescue operation as part of their life safety mission. Further complicating the decision are the hazards associated with roof structure collapse, creating deadly conditions for firefighters operating on and under the roof. Structural collapse accounted for 180 firefighter deaths between 1979 and 2002 of which one-third occurred in residential structures . Many of these incidents involved a roof falling on firefighters or firefighters falling through the roof during firefighting operations on attic fires. The purpose of this study is to increase firefighter safety by providing the fire service with scientific knowledge on the dynamics of attic and exterior fires and the influence of coordinated fire mitigation tactics from full-scale fire testing in realistic residential structures.
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Lingner, Stefan, Karl Heger, and Claas Faber. MAMS Image Broker. GEOMAR, 2022. http://dx.doi.org/10.3289/sw_3_2022.
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The GEOMAR Helmhotz Centre for Ocean Research Kiel is operating a Media Asset Management System (MAMS) which manages large amounts image- and video data. Similar systems are operated by the Helmholtz Centre HEREON and by the Alfred Wegener Institute (AWI). Although the MAMS system provides access to data and metadata using an API, it is not possible to directly request image data without prior knowledge of the internal MAMS data structure. The image broker is a web service which brokers between a client (e.g. web-browser) and the MAMS. It allows users to request images by metadata values (e.g. image uuid). The broker uses the [IIIF](https://iiif.io/) standard which allows users to request the images in different formats, scaled copies or only specific parts of the image.
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Graham, Gordon. Why The World Needs an Open Source Digital Wallet Right Now. The Linux Foundation, 2023. https://doi.org/10.70828/zehc9956.
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Our physical wallets are quickly becoming digitized to support the transfer of digital assets, from currency to concert tickets. Creating hundreds of different digital wallets causes a vendor lock-in which leads to a lack of interoperability and functionality amongst services. Meanwhile, the fragmentation of their design and development means that the security of these wallets is not always as strong as it could be. The Open Wallet Foundation (OWF) was formed to support the development of wallets that are portable, secure, and that anyone can use on any device, with any operating system, for any app or service, and with any currency. This whitepaper traces the origins of digital wallets, the opportunities and obstacles in this area of development, and where the OWF comes in.