Relevant bibliographies by topics / RTTY

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'RTTY'

Author: Grafiati
Published: 28 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "RTTY"

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Payes, Lucas F., Oscar G. Lombardero, and Víctor J. Toranzos. "Diseño de un transmisor de datos con modulación FSK en banda HF para un sistema de telemetría." Extensionismo, Innovación y Transferencia Tecnológica 6 (June 17, 2020): 240. http://dx.doi.org/10.30972/eitt.604397.

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<p>La necesidad de contar con un sistema de registro de parámetros físicos en forma remota en lugares donde no existe cobertura de los sistemas de comunicación convencionales como ser WiFi, Bluetooth, GPRS, LTE, en otros, motivó el desarrollo del presente trabajo, como proyecto final de graduación de la carrera de Ingeniería en Electrónica de la FACENA UNNE, que consistió en el diseño y construcción de un Transmisor de Datos con modulación FSK en banda HF. El sistema consiste de tres etapas que son: a) Toma de datos y codificación, b) Transmisión y c) Recepción. El procesamiento de señales se realizó mediante un sistema embebido con un microcontrolador Atmega328p, que toma los datos de origen y genera la codificación en protocolo RTTY. El sistema de transmisión se diseñó teniendo en cuenta la flexibilidad en cuanto a las frecuencias de trabajo, que sea económico, robusto para la aplicación, y con una potencia de salida de unos pocos vatios. Para la verificación de la recepción de los datos, se utilizó un transceptor comercial marca Yaesu modelo FT-80C. Para decodificación y control se utilizó una computadora personal con el programa RTTY Decover de uso libre.</p><p> </p>
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Patterson, Davis G., David Schmitz, and Randall L. Longenecker. "Family Medicine Rural Training Track Residencies: Risks and Resilience." Family Medicine 51, no. 8 (September 6, 2019): 649–56. http://dx.doi.org/10.22454/fammed.2019.769343.

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Background and Objectives: Family medicine rural training track (RTT) residency programs produce a higher proportion of graduates who choose rural practice than other programs, yet RTTs face continuing threats to their existence. This study sought to understand threats to RTT sustainability and resilience factors that enable RTTs to thrive. Methods: In 2014 and 2015, the authors conducted semistructured interviews of 21 RTT leaders representing two closed programs and 22 functioning programs. Interview topics included program strengths providing resilience and sustainability, risk factors for closure or vulnerabilities threatening sustainability, and advice for other RTTs. The authors performed a content analysis, coding pertinent themes in all interview data. Results: From the top three assets, risks, and advice that respondents offered, the following nine themes emerged, in order from most to least mentioned: leadership, faculty and teaching resources, program support, finances, resident recruitment, program attributes, program mission, political and environmental context, and patient-related clinical experiences. Interviewees frequently reported multifactorial causes for RTT sustainability or closure. Conclusions: Numerous factors identified, such as distance, can operate as positive or negative influences for program resilience, depending on place and context. Resilience depends on multiple forms of social capital, including robust networks among individuals and various communities: the local population and patients, local health care providers, residency faculty, and RTTs in general. The small size and remoteness of RTTs make them vulnerable to multiple challenges in finances, regulations, and accreditation, requiring program adaptability and suggesting the need for flexibility in the policies that govern them.
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Lee, Bum-Soo, Conrad P. Lichtenstein, Brenda Faiola, Lori A. Rinckel, William Wysock, M. Joan Curcio, and David J. Garfinkel. "Posttranslational Inhibition of Ty1 Retrotransposition by Nucleotide Excision Repair/Transcription Factor TFIIH Subunits Ssl2p and Rad3p." Genetics 148, no. 4 (April 1, 1998): 1743–61. http://dx.doi.org/10.1093/genetics/148.4.1743.

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Abstract rtt4-1 (regulator of Ty transposition) is a cellular mutation that permits a high level of spontaneous Ty1 retrotransposition in Saccharomyces cerevisiae. The RTT4 gene is allelic with SSL2 (RAD25), which encodes a DNA helicase present in basal transcription (TFIIH) and nucleotide excision repair (NER) complexes. The ssl2-rtt (rtt4-1) mutation stimulates Ty1 retrotransposition, but does not alter Ty1 target site preferences, or increase cDNA or mitotic recombination. In addition to ssl2-rtt, the ssl2-dead and SSL2-1 mutations stimulate Ty1 transposition without altering the level of Ty1 RNA or proteins. However, the level of Ty1 cDNA markedly increases in the ssl2 mutants. Like SSL2, certain mutations in another NER/TFIIH DNA helicase encoded by RAD3 stimulate Ty1 transposition. Although Ssl2p and Rad3p are required for NER, inhibition of Ty1 transposition is independent of Ssl2p and Rad3p NER functions. Our work suggests that NER/TFIIH subunits antagonize Ty1 transposition posttranslationally by inhibiting reverse transcription or destabilizing Ty1 cDNA.
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Hales, R., J. Rodgers, L. Whiteside, G. Budgell, J. Berresford, A. Choudhury, and C. Eccles. "OC-0683: RTTs at the helm: moving towards RTT-led MR-guided radiotherapy." Radiotherapy and Oncology 152 (November 2020): S380—S381. http://dx.doi.org/10.1016/s0167-8140(21)00705-2.

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Pan, Wansu, Haibo Tan, Xiru Li, and Xiaofeng Li. "Improved RTT Fairness of BBR Congestion Control Algorithm Based on Adaptive Congestion Window." Electronics 10, no. 5 (March 6, 2021): 615. http://dx.doi.org/10.3390/electronics10050615.

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To alleviate the lower performance of Transmission Control Protocol (TCP) congestion control over complex network, especially the high latency and packet loss scenario, Google proposed the Bottleneck Bandwidth and Round-trip propagation time (BBR) congestion control algorithm. In contrast with other TCP congestion control algorithms, BBR adjusted transfer data by maximizing delivery rate and minimizing delay. However, some evaluation experiments have shown that the persistent queues formation and retransmissions in the bottleneck can lead to serious fairness issues between BBR flows with different round-trip times (RTTs). They pointed out that small RTT differences cause unfairness in the throughput of BBR flows and flows with longer RTT can obtain higher bandwidth when competing with the shorter RTT flows. In order to solve this fairness problem, an adaptive congestion window of BBR is proposed, which adjusts the congestion window gain of each BBR flow in network load. The proposed algorithms alleviate the RTT fairness issue by controlling the upper limit of congestion window according to the delivery rate and queue status. In the Network Simulator 3 (NS3) simulation experiment, it shows that the adaptive congestion window of BBR (BBR-ACW) congestion control algorithm improves the fairness by more than 50% and reduces the queuing delay by 54%, compared with that of the original BBR in different buffer sizes.
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Engel-Hills, P. C. "Professional expertise for radiation therapists in Africa." Journal of Radiotherapy in Practice 6, no. 03 (September 2007): 125–31. http://dx.doi.org/10.1017/s1460396907006127.

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AbstractThe radiation therapist (RTT) is a practitioner who must learn to take responsibility as an autonomous professional within a collaborative multi-professional team. A case study of international students on fellowship studies to a South African Higher Education Institution was used as the lens to explore the development of professional expertise in RTTs. Documents and semi-structured interviews generated textual data that was semantically analysed. The findings are presented as a discussion of the themes that emerged from the text data; (1) autonomy in a team, (2) collaboration facilitates learning, (3) the need for professional competence, (4) reflective practice and (5) participatory learning. The paper offers the interpretation of professional competence as a practitioner who has applicable knowledge, clinical and generic competence as well as appropriate behaviour and attitudes. It is proposed that a collaborative, integrated curriculum meets the need for the education of RTTs on the African continent. In such an environment optimised learning is facilitated by access to good clinical role models, the development of skills toward reflective practice and student participation in the learning environment.
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Pashtan, Itai Max, Tara Kosak, Kevin Beaudette, Amy Buckman, Abigail Clark, Jill Connolly, Lynne Hicks, et al. "Addressing alert fatigue by reducing radiation oncology software alert volume." Journal of Clinical Oncology 39, no. 28_suppl (October 1, 2021): 261. http://dx.doi.org/10.1200/jco.2020.39.28_suppl.261.

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261 Background: Radiation therapists (RTTs) administer radiation treatments to patients with cancer. Treatments are delivered using linear accelerators (LINACs), operated by vendor specific software. Prior to delivering treatment, RTTs perform a time-out, and read aloud critical electronic communications (alerts) entered by members of the radiation oncology care team. Alerts are effective at communicating critical information, including treatment setup and imaging instructions, but can become a source of error due to alert fatigue when placed indiscriminately. Methods: A multicenter retrospective review of alert use per patient was conducted in 4 radiation oncology centers with a total of 6 LINACs. Alert usage was reviewed pre-intervention for 40 randomly selected patients using manual chart review. Each alert was reviewed for frequency and utilization. In attempt of improving communication and reducing alert fatigue, a multidisciplinary process improvement working group (with Radiation Oncologists, RTTs, nursing, physicists, and administration) was formed to review the utilization of alerts in our department and propose interventions. Three months after intervention, an additional 40 chart review was performed. Our aim was to reduce the volume of alerts by 20% within 3 months. A 2-tail t-test was used for statistical analysis. Results: Process improvements were implemented to reduce the volume of alerts per patient. Interventions included 1) defining an alert for all departmental staff, 2) creating guidelines for appropriate utilization of alerts, 3) routing communications not critical to RTTs at the time of radiation treatment administration through other channels, and 4) training staff as to the above. The pre-intervention review yielded 239 alerts. Post-intervention, there were 173 alerts, a reduction of 27% (p =.008). Conclusions: This practice change reduced average alert volume by 27%. As a result, alerts which are critical to safe treatment delivery by RTTs (i.e. daily setup alerts), became more heavily represented. Other alerts, which could be communicated effectively in other ways (i.e. OTVs [weekly on treatment visit with Radiation Oncologist]), were eliminated. By decreasing alert volume, the risk of RTT alert fatigue is reduced, communication improved, and treatment safety enhanced.[Table: see text]
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Guo, Yanjun, and Yihui Ding. "Long-Term Free-Atmosphere Temperature Trends in China Derived from Homogenized In Situ Radiosonde Temperature Series." Journal of Climate 22, no. 4 (February 15, 2009): 1037–51. http://dx.doi.org/10.1175/2008jcli2480.1.

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Abstract In this paper, radiosonde temperature time series (RTT) from 1958 to 2005 collected by the 116-station Chinese radiosonde network are examined. Quality control and homogenization are used to obtain a reliable RTT. The homogenization results revealed significant discontinuities in the RTT. Analysis suggested that 70% data availability is the minimum data requirement (MDR) for these RTTs. A new dataset is built by meeting this MDR, which reduced the number of potential stations from 116 to 92. Analysis on this dataset reveals that warming trends in the troposphere and cooling trends in the stratosphere were weakened by reducing the stations. Averaged RTT trends for China were generally consistent with those of global scale, but with some discrepancies. During 1958–2005, averaged temperatures in China tended to decrease in the lower stratosphere and upper troposphere, in contrast to warming trends in the mid- and lower troposphere. The trends varied with two different subperiods. For 1958–78, cooling trends in the entire atmosphere were similar to trends at the global scale. For 1979–2005, warming occurred in the lower troposphere, with the amplitude of the warming tending to weaken with increases in altitude and shifting to a cooling trend above 400 hPa. Seasonal trend structures suggest that warming in the lower troposphere is attributable to temperature increases in December–February (DJF); cooling in the upper troposphere and stratosphere was found mainly in June–August (JJA). Unlike with results of a larger spatial scale, a robust cooling layer was found around 300 hPa.
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Engel-Hills, Penelope C. "Radiation therapist research in Africa: overcoming the barriers to reap the rewards." Journal of Radiotherapy in Practice 8, no. 2 (June 2009): 93–98. http://dx.doi.org/10.1017/s1460396908006547.

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AbstractRadiation therapy is recognised throughout the world as an essential modality in the treatment of many malignant diseases. A quality treatment process requires highly competent health care professionals and high-technology equipment. In the majority of countries in Africa there is a desperate need for equipment and skilled therapists and in many countries there is no access to radiation therapy to relieve the suffering of cancer patients. As a region, Africa can therefore be considered as ‘under resourced’ in terms of radiation oncology services. In this context both service and research are challenged by a lack of equipment, poor maintenance, inadequate funding, inconsistent consumable supplies, a scarcity of competent professionals to ensure optimal use of what is available and excessive workload. Africa therefore has many examples of the situation, where low-income countries generally have a poor research infrastructure. Radiation therapist (RTT) research in Africa has to develop where the barriers to research can in most instances be traced back to a lack of resources and any initiatives to overcome these barriers are frequently blocked by the limitations of a resource-poor environment. To locate the discussion on the research environment of RTTs in Africa, barriers to and benefits of research are integrated with brief information under the following headings: the macro environment, the RTT environment and the RTT research environment. The latter includes insights from interviews and discussions covering the following topics: research now, research priorities, research opportunities and strategies for future research.
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Rindasari, Niken Mareta, Julehah Julehah, and Neneng Masitoh. "EVALUASI TATA KELOLA DAN KINERJA KELEMBAGAAN KOMISI IRIGASI (KOMIR) KABUPATEN PANDEGLANG." Jurnal Ilmiah Mahasiswa Agroinfo Galuh 7, no. 3 (September 25, 2020): 534. http://dx.doi.org/10.25157/jimag.v7i3.3562.

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Penelitian ini bertujuan untuk (i) mengidentifikasi berbagai pencapaian dan realisasi program kerja komisi irigasi, (ii) menilai kinerja kelembagaan komisi irigasi dan (ii) merekomendasikan perbaikan kelembagaan komisi irigasi di Kabupaten Pandeglang. Metode pengumpulan data yang digunakan dalam penelitian ini berbagai strategi, diantaranya adalah gabungan antara metode dokumentasi dan survei yang dilengkapi dengan metode observasi. Untuk penilaian kinerja komisi irigasi dengan metode penilaian cepat secara partisipatif terhadap 3 variabel meliputi pembentukan, sekretariat dan pendanaan yang di uraikan kedalam 10 variabel dengan 25 indikator penilaian kinerja komisi irigasi. Komisi irigasi telah melakukan 3 (tiga) sidang komisi irigasi dengan melakukan pengesahan tata tertib sidang dan menyusun Penyusunan dan Penetapan RTTG dan RTTD masa Tanam 2019 – 2020. Hasil penilaian kinerja komisi irigasi mendapatkan nilai skor 70 dengan kategori berkinerja cukup. Penilaian tersebut menjelaskan dalam pengelolaan kelembagaan komisi irigasi terdapat beberapa kendala yang perlu untuk di tingkatkan meliputi ketersediaan tenaga ahli dan narasumber dalam berbagai pelaksanaan kegiatan komisi irigasi, masih rendahnya dukungan pendanaan untuk kegiatan operasional komisi irigasi, dan sekretariat komisi irigasi yang masih bersifat sementara (sewa).
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Dissertations / Theses on the topic "RTTY"

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Šuňal, Štefan. "Přijímací dekodér RTTY." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442375.

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This thesis deals with designing and implementing autonomous decoder for RTTY communication. Theoretical part of the thesis deals with researching the RTTY technology and FSK modulation, which it uses, focusing mainly on the methods of demodulation. Next part of the thesis compares suitability of available platforms. Practical part of the thesis describes the design and implementation of circuit board, firmware and computer application. The device is using STM32 microcontroller. Firmware was developed in C++ using Arduino. The computer application was created by using C\# and WPF. 3 methods of FSK demodulations were implmented. One is using a FFT algorithm. Other two calculate frequency based on the period of square signal.
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Jain, Saurabh. "LTCP-RC: RTT compensation technique to scale high-speed protocol in high RTT links." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2528.

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In this thesis, we propose a new protocol named Layered TCP with RTT Compensation (LTCP-RC, for short). LTCP-RC is a simple modification to the congestion window response of the high-speed protocol, Layered TCP (LTCP). In networks characterized by large link delays and high RTTs, LTCP-RC makes the LTCP protocol more scalable. Ack-clocked schemes, similar to TCP, suffer performance problems like long convergence time and throughput degradation, when RTT experienced by the flow increases. Also, when flows with different RTTs compete, the problem of unfairness among competing flows becomes worse in the case of high-speed protocols. LTCP-RC uses an RTT Compensation technique in order to solve these problems. This thesis presents a general framework to decide the function for RTT Compensation factor and two particular design choices are analyzed in detail. The first algorithm uses a fixed function based on the minimum RTT observed by the flow. The second algorithm uses an adaptive scheme which regulates itself according to the dynamic network conditions. Evaluation of the performance of these schemes is done using analysis and ns-2 simulations. LTCP-RC exhibits significant performance improvement in terms of reduced convergence time, low drop rates, increased utilization in presence of links with channel errors and good fairness properties between the flows,. The scheme is simple to understand, easy to implement on the TCP/IP stack and does not require any additional support from the network resources. The choice of parameters can be influenced to tune the RTT unfairness of the scheme, which is not possible in TCP or other high-speed protocols. The flexible nature of the analysis framework has laid the ground work for the development of new schemes, which can improve the performance of the window based protocols in high delay and heterogeneous networks.
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Pemmaraju\, Venkata Santosh. "Real-Time Live RTT Analyzer." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3633.

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Due to rapid increasing in complexity of Internet, quantifying the performance of protocol helps in assessing the application behavior with respect to network performance. TCP is an important protocol that is used by some important applications on Internet such as HTTP, FTP and soon. To analyze TCP, Round trip times is one of the metric used. As it is a internal metric of TCP used to find the retransmission timeout of sent packet. Round trip times means measuring elapsed time between the sent packet and recieving its acknowledgment that covers the sequence number of the sent packet(i.e., from source to destination and vice-a-versa). Round trip times is a metric that is recognised by IETF as Quality of Service parameter. We design a tool here that will calculate the round trip times for each stream. This round trip times helps us to understand the protocol behavior. In this document, we discuss the design, implementation issues carried out while developing the tool. This tool is capable of reading offline as well as online streams and helps us to analyze the statistics obtained from collected round trip times of each stream.
91-40-24023214
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DE, LOOR PIERRE. "Du ttm/rttl pour la validation des systemes commandes par grafcet." Reims, 1996. http://www.theses.fr/1996REIMS039.

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Notre travail de these porte sur la validation des systemes commandes par grafcet. L'originalite de l'approche preconisee, reside dans la prise en compte du modele de la partie operative qui constitue, en effet, l'objectif principal de l'automatisation. Ceci permet de limiter considerablement les evolutions possibles du grafcet a celles qui peuvent etre effectivement atteintes au sein du systeme automatise. Pour mettre en uvre cette approche, nous utilisons le formalisme ttm (timed transition model)/rttl (real time temporal logic) qui est adapte a la specification et a la verification des systemes a evenements discrets. Ce formalisme permet d'associer l'asynchronisme et le non determinisme de la partie operative au determinisme et au synchronisme du grafcet. Ainsi, des regles de reecriture generant un ttm equivalent a un systeme commande par grafcet sont elaborees. Un systeme de preuve dedie est egalement mis en uvre afin de valider efficacement des proprietes de securite, de vivacite et de temps de reponse, exprimees en rttl. La methode de validation preconisee est basee sur l'abstraction d'elements non pertinents vis-a-vis de la propriete etudiee. Ces elements sont identifies par le biais d'heuristiques qui prennent en compte l'intention du concepteur refletee par l'interaction entre la commande et la partie operative. Pour asseoir l'approche, une maquette informatique est realisee a l'aide des langages de programmation smalltalk et clp (r). Enfin, une extension de cette approche a la validation des systemes hybrides est egalement proposee
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Abreu, Ricardo Matos. "Projecto de um receptor de microondas para uso em sistemas DSRC/RTTT." Master's thesis, Universidade de Aveiro, 2007. http://hdl.handle.net/10773/4807.

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Mestrado em Engenharia Electrónica e Telecomunicações
Os sistemas de pagamento automático de portagens rodoviárias são hoje uma tecnologia bem implementada e presentes no dia a dia de muitas pessoas. Através de uma pequena etiqueta electrónica colocada no automóvel é possível efectuar o pagamento devido pela utilização de uma infra-estrutura sem para tal ser necessário parar. Por seu turno, para que seja possível a comunicação com a etiqueta, é necessário um outro equipamento electrónico agregado à infra-estrutura. O receptor de comunicação deste último equipamento é o objecto do presente trabalho.
Nowadays, automatic fee collection systems for road tolls are a well-known technology, and these systems are present on the everyday routine of many people. With a small electronic tag mounted on-board the vehicle it is possible to automatically pay the amount due to the use of an infrastructure (such as a road, tunnel or bridge) without having to stop. On the other hand, to make communications with the tag possible, some other equipment is needed bounded to the infrastructure. The communications receiver of this last equipment is described on the present work.
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Gellert, Kai [Verfasser]. "Construction and Security Analysis of 0-RTT Protocols / Kai Gellert." Wuppertal : Universitätsbibliothek Wuppertal, 2020. http://d-nb.info/1217666222/34.

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Li, Yingzi. "Varma modelling for window size and RTT in TCPIP networks." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26690.

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TCP (Transmission Control Protocol) and IP (Internet Protocol) are the most important protocols used for most of the data transmission across the Internet. Modern implementations of TCP mostly involve the concepts of Window Size and Round Trip Time (RTT) in controlling network congestion. We model simulated time series of Window Size and RTT to evaluate the characteristics and the relationship of the data over time using autoregressive moving average methods. These methods help us to forecast network performance and detect server congestion.
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Ekk, Victoria Beatriz. "The Longest Rollercoaster Ride: Ten Years with NCLB, AYP and RTTT-- An Insider's Perspective." Thesis, Boston College, 2014. http://hdl.handle.net/2345/3791.

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Thesis advisor: Marilyn Cochran-Smith
This practitioner research longitudinal study examines the effects of the No Child Left Behind (NCLB) law and the Race To The Top (RTTT) initiative on a high performing middle school in Massachusetts between 2003 and 2013. Utilizing a theoretical framework that combines Cochran-Smith and Lytles (2009) "inquiry as stance" and Ball's concept of (1990b) "policy cycles," the study analyzes the programmatic and structural changes enacted in response to NCLB, RTTT and their effects on special education and low income students, their teachers, parents, and the principal. The study's findings show that federal mandates and related state regulations placed unrealistic, unfair and unreasonable demands on students, teachers and the school. Staff often felt as if we were riding on a rollercoaster. Massachusetts' rating of "High" and "Very High" performance on the state test contrasted with the NCLB school report cards that labeled the school as in need of "improvement," "corrective action," and eventually "restructuring" because of the failure of special education or low income students to meet constantly rising targets. NCLB's and RTTT's requirements caused the school to prioritize courses providing remediation in tested subjects--English language arts and mathematics--reducing the availability of related arts classes and thereby narrowing the curriculum. The school's obsessive focus on the annual state tests produced an atmosphere of anxiety for all stakeholders. Unwanted changes in the school culture eventually generated a schoolwide movement to resist the obsession with testing, reduce anxiety and expand interdisciplinary learning. The study concludes with recommendations for further research of the effects of federal mandates on "good" schools across the US. It recommends that policymakers recognize that "one size fits all" school reform is detrimental to public schools and calls for the recognition of local knowledge in the making of policy. A further recommendation encourages school leaders to study their own practice, becoming practitioner researchers for the benefit of their schools
Thesis (PhD) — Boston College, 2014
Submitted to: Boston College. Lynch School of Education
Discipline: Teacher Education, Special Education, Curriculum and Instruction
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Madeira, Fabio Lopes. "Características dos tributos diferidos nas companhias abertas brasileiras após a adoção das IFRS." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8378.

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Esta pesquisa investigou as motivações econômicas que explicam o nível de reconhecimento dos tributos diferidos sobre o lucro nas companhias abertas brasileiras no período inicial de adoção das IFRS no Brasil e da vigência obrigatória do Regime Tributário de Transição. Foram selecionadas companhias abertas não financeiras brasileiras componentes no índice IBrX 100, sendo identificadas 68 companhias nos anos de 2010 à 2013 compreendendo assim 272 observações. A análise descritiva dos dados evidenciou que o montante dos passivos fiscais diferidos foi superior ao montante dos ativos fiscais diferidos em todos os anos pesquisados, situação esta que contrata com o cenário pré-IFRS onde existiam menos passivos fiscais diferidos devido às reduzidas opções de exclusões temporárias, e que os ativos fiscais diferidos são majoritariamente oriundos de diferenças temporárias, porém ocorrendo um crescimento maior dos créditos fiscais referentes a prejuízos fiscais no período combinado com uma evolução maior dos ativos fiscais totais do que dos passivos fiscais diferidos. Por meio da análise multivariada de regressão múltipla com dados em painel foi possível constatar que: (i) não há relacionamento significativo entre o reconhecimento de tributos diferidos e o endividamento da empresa, isto é, não existe evidência que as companhias utilizem os tributos diferidos com a finalidade de influenciar o nível de endividamento, apesar da possibilidade de quebra de covenants e, consequentemente, aumento de seu risco de crédito, (ii) as maiores empresas tendem a registrar um valor menor de ativos fiscais diferidos líquidos de forma a reduzir seus lucros e divulgar sua sobretaxação a fim de reduzir sua exposição pública, e (iii) as empresas menos lucrativas são propensas a reconhecer um montante maior de ativos fiscais diferidos líquidos para, presumivelmente, atenuar o baixo resultado da empresa e com isso mascarar o seu fraco desempenho, e também, por outro lado, as companhias que possuem maior rentabilidade tendem a registrar valores menores de ativos fiscais diferidos líquidos no sentido de reduzir o lucro, e com isso, diminuir seus custos políticos. Assim, os resultados obtidos sugerem que as empresas utilizam a discricionariedade proporcionada pela regulação contábil dos tributos diferidos para atingir seus objetivos e demandas, no sentido de reduzir sua exposição pública e melhorar sua rentabilidade.
This research investigated the economic motivations that explain the level of recognition of deferred income taxes in the Brazilian companies during initial adoption of IFRS in Brazil and the mandatory term of the Transitional Tax Regime. Non-financial public companies were selected in the index IBrX 100, 68 companies were identified from 2010 to 2013 comprising 272 observations. The descriptive analysis of the data indicated that the amount of deferred tax liabilities was greater than the amount of deferred tax assets in all years studied, a situation that contracts with the pre-IFRS scenario where there were fewer deferred tax liabilities due to reduced options of temporary exclusions and that the deferred tax assets are mainly arising from temporary differences, however there was further growth of tax credits related to tax losses in the period combined with a greater increase in total tax assets than deferred tax liabilities. In the multivariate multiple regression analysis with panel data it was found that: (i) there is no significant relationship between the recognition of deferred taxes and the debts of the Company, that is, there is no evidence that companies use deferred taxes for the purpose of influencing the level of debt, despite the possibility of covenants be broken and, consequently, increase its credit risk, (ii) larger firms tend to register a lower value of net deferred tax assets to reduce their profits and disclose their overcharge in order to reduce public exposure, and (iii) the least profitable firms are likely to recognize a greater amount of net deferred tax assets for presumably mitigate the low result of the company and thus mask their poor performance and also, on the other hand, companies that have higher profitability tend to register lower values of net deferred tax assets to reduce profit, and thus, lower their political costs. Thus, the results suggest that companies use discretion provided by the accounting regulation of deferred taxes to achieve their goals and demands, to reduce public exposure and improve its profitability.
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Ingr, Michal. "Geolokace stanic v síti Internet." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218878.

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This master thesis deals with methods of stations’ geolocation on the Internet, it means the estimation geographic location of unknown station, which is conected to this network. The introductory part describes the methods for determining position, which don‘t need any measeruments of the network. The next section is devoted to points, where delay is invoked, to the causes of latency in the Internet, to their types and some usual values. The following part features ways to measure delays and route, including several tools for this purpose. The penulminate section describes some chosen geolocation techniques based on RTT measurement. The final chapter is devoted to practical demonstration geolocation using the CBG method, when the delay measurement was carried out in an experimental PlanetLab network.
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Books on the topic "RTTY"

1

Your RTTY/AMTOR companion. Newington, CT: American Radio Relay League, 1993.

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Get on the air with HF digital: The beginner's guide to PSK31, RTTY and more! Newington, CT: ARRL, 2011.

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35 heures chrono!: Les paradoxes de la RTT. Paris: L'Harmattan, 2007.

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Reynek, Bohuslav. Rybí šupiny ; Rty a zuby ; Had na sněhu. 2nd ed. Praha: Vyšehrad, 1990.

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Beytout, Jacqueline. Le coq gaulois ne chante plus, il est en RTT. Paris: Editions de l'Archipel, 2003.

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Beytout, Jacqueline. Le coq gaulois ne chante plus, il est en RTT. Paris: Archipel, 2003.

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Mitchell, Philip C. Fax and RTTY Weather Reports. Interproducts, 1996.

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Osterman, Fred, and Gary Gorka. The Soviet Maritime Rtty Dictionary. Universal Radio Research, 1988.

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Mitchell, Philip C. Fax, Satellite and RTTY Weather Reports. Interproducts, 1997.

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Osterman, Fred. The Rtty Listener Rl 1-25. Universal Radio Research, 1991.

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Book chapters on the topic "RTTY"

1

Goyal, Arunesh. "Runtime Type Identification (RTTI)." In Moving from C to C++, 575–92. Berkeley, CA: Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6095-0_20.

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Gaspari, Roberto. "Real-Time Thermal Rating (RTTR) Systems." In Power Systems, 85–117. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-4549-3_3.

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Ostroff, J. S. "Verification of safety critical systems using TTM/RTTL." In Real-Time: Theory in Practice, 573–602. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/bfb0032008.

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Lassila, Pasi, and Michel Mandjes. "A Multi-level TCP Model with Heterogeneous RTTs." In Lecture Notes in Computer Science, 52–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-24693-0_5.

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Huang, Lisheng, Wenyong Wang, and Mingtian Zhou. "Estimating Half-Path RTT in Backbone Network." In Lecture Notes in Computer Science, 511–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-88623-5_64.

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Marfia, Gustavo, Claudio Palazzi, Giovanni Pau, Mario Gerla, M. Y. Sanadidi, and Marco Roccetti. "TCP Libra: Exploring RTT-Fairness for TCP." In NETWORKING 2007. Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet, 1005–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72606-7_86.

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Liu, Youyao, Cuijin Li, and Jungang Han. "RTTM: A New Hierarchical Interconnection Network for Massively Parallel Computing." In Lecture Notes in Computer Science, 264–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11842-5_36.

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Romirer-Maierhofer, Peter, Fabio Ricciato, Alessandro D’Alconzo, Robert Franzan, and Wolfgang Karner. "Network-Wide Measurements of TCP RTT in 3G." In Traffic Monitoring and Analysis, 17–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01645-5_3.

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Sacha, Krzysztof. "Credential Chain Discovery in RTT Trust Management Language." In Lecture Notes in Computer Science, 195–208. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14706-7_15.

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Günther, Felix, Britta Hale, Tibor Jager, and Sebastian Lauer. "0-RTT Key Exchange with Full Forward Secrecy." In Lecture Notes in Computer Science, 519–48. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56617-7_18.

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Conference papers on the topic "RTTY"

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Keim, Elisabeth, Dieter Siegele, and Gerhard Nagel. "Validation of RTTo for German Reactor Pressure Vessel Steels." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71197.

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For the introduction of the new reference temperature RTTo of the ASME Code Cases N-629 and N-631 into the German KTA rules the equation RTTo = T0 + 19,4 °C (35 °F) was validated by the re-evaluation of the existing fracture toughness data base of German RPV steels, including unirradiated and irradiated base material and weld metal data. The test temperatures of the data base were standardized to the reference temperature T0 of the Master Curve of the data sets and the data base was compared with the ASME KIc-curve as adjusted by RTTo. The KIc-curve adjusted by RTTo enveloped both, the 1T-size adjusted data base and also the as measured data base, corresponding with the definition of RTTo. Thus the results also prove the validity of the KIc(RTTo)-curve for allowable flaw sizes and up to the crack length spectrum of the ASME KIC-data base without size adjustment of T0. The results of both investigations confirmed the validity of RTTo for German RPV steels.
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Schoeberl, Martin, Florian Brandner, and Jan Vitek. "RTTM." In the 2010 ACM Symposium. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1774088.1774158.

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Kirk, Mark, Hieronymus Hein, Marjorie Erickson, William Server, and Gary Stevens. "A Fracture-Toughness Based Transition Reference Temperature for Use in the ASME Code With the Crack Arrest (KIA) Curve." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28311.

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In the early 2000s, ASME adopted Code Cases N-629 and N-631 [1–2], both of which permit the use of the Master Curve reference temperature (To) to define an reference temperature RTTo, as follows (in SI units, as are used throughout the paper):RTTo=To+19.4℃The Code Cases state that “this reference temperature … may be used as an alternative to [the] indexing reference temperature RTNDTfor the KIcand KIatoughness curves, as applicable, in Appendix A and Appendix G [of Section XI of the ASME Code].” KIa is now only used in Appendix A. The functional form of the ASME KIc and KIa curves dictate that the temperature separation between them remains constant irrespective of the degree of neutron radiation embrittlement, as quantified by ΔRTNDT or ΔRTTo. However, data collected from the literature and new data reported by Hein et al. show that radiation embrittlement brings the KIc and KIa curves closer together as embrittlement increases. As a result, current Code guidance will not produce a bounding KIa curve in all situations when RTTo is used as an reference temperature. To reconcile this issue, this paper summarizes available data and, on that basis, concludes that use of the following reference temperature will ensure that the ASME KIa curve bounds currently available KIa data:RTKIa=RTTo-19.4+44.97×exp⁡−0.00613×RTTo-19.4
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Hirota, Takatoshi, Takashi Hirano, and Kunio Onizawa. "Alternative Reference Temperature Based on Master Curve Approach in Japanese Reactor Pressure Vessel Steel." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-98164.

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Master Curve approach is the effective method to evaluate the fracture toughness of the ferritic steels accurately and statistically. The Japan Electric Association Code JEAC 4216-2011, “Test Method for Determination of Reference Temperature, To, of Ferritic Steels” was published based on the related standard ASTM E 1921-08 and the results of the investigation of the applicability of the Master Curve approach to Japanese reactor pressure vessel (RPV) steels. The reference temperature, To can be determined in accordance with this code in Japan. In this study, using the existing fracture toughness data of Japanese RPV steels including base metals and weld metals, the method for determination of the alternative reference temperature RTTo based on Master Curve reference temperature To was statistically examined, so that RTTo has an equivalent safety margin to the conventional RTNDT. Through the statistical treatment, the alternative reference temperature RTTo was proposed as the following equation; RTTo = To + CMC + 2σTo. This method is applicable to the Japan Electric Association Code JEAC 4206, “Method of Verification Tests of the Fracture Toughness for Nuclear Power Plant Components” as an option item.
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Kirk, Mark, and Marjorie Erickson. "The Non-Effect of Yield Strength on RTT0 and on the Master Curve." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93367.

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Abstract During the August 2018 ASME Committee Week, a Code Change Inquiry was presented to the Working Group on Operating Plant Criteria (WGOPC): Question 1: Is it the intent of G-2110 to limit RTT0 use to ferritic materials with specified minimum room temperature yield strengths 50 ksi or less? Question 2: If the reply to Question 1 is “No”, is it the intent of G-2110 that G-2110(b) requirement must be met before RTT0 may be used for ferritic materials above 50 ksi but not exceeding 90 ksi? During that meeting the WGOPC replied “no” to both questions. This paper provides an evaluation of available fracture toughness data augmented by an understanding of the underlying mechanisms of cleavage fracture to demonstrate the veracity of the WGOPC’s answer with regards to RTT0 and, more generally, with respect to the Master Curve.
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Dempsey, R. "Remote Telemetry Testing Module (RTTM)." In OCEANS '87. IEEE, 1987. http://dx.doi.org/10.1109/oceans.1987.1160910.

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Wallin, Kim R. W., Gerhard Nagel, Elisabeth Keim, and Dieter Siegele. "Estimation of Master Curve Based RTTo Reference Temperature From CVN Data." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71135.

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The ASME code cases N-629 and N-631 permits the use of a Master Curve-based index temperature (RTTo ≡ T0 + 19.4°C) as an alternative to traditional RTNDT-based methods of positioning the ASME KIc, and KIR curves. This approach was adopted to enable use of Master Curve technology without requiring the wholesale changes to the structure of the ASME Code that would be needed to use all aspects of Master Curve technology. For the brittle failure analysis considering irradiation embrittlement additionally a procedure to predict the adjustment of fracture toughness for EOL from irradiation surveillance results must be available as by NRC R.G. 1.99 Rev. 2 e.g.: ART = Initial RTNDT + ΔRTNDT + Margin. The conservatism of this procedure when RTNDT is replaced by RTTo is investigated for western nuclear grade pressure vessel steels and their welds. Based on a systematic evaluation of nearly 100 different irradiated material data sets, a simple relation between RTToirr, RTToref and ΔT41JRG is proposed. The relation makes use of the R.G. 1.99 Rev. 2 and enables the minimizing of margins, necessary for conventional correlations based on temperature shifts. As an example, the method is used to assess the RTTo as a function of fluence for several German pressure vessel steels and corresponding welds. It is shown that the method is robust and well suited for codification.
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Heath, Bradley K., Cody C. Race, and Lee O. Nelson. "Transient Reactor Test Facility Restart 23 Years Later." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81833.

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The Transient Reactor Test (TREAT) Facility, located at the Idaho National Laboratory (INL), is a versatile test facility able to subject experimental specimens to various transient nuclear conditions. TREAT was placed in standby after operating from February 1959 through April 1994, resulting in the loss of nearly all transient testing capability in the United States. Recently, the US Department of Energy (DOE) determined this capability was again needed. After DOE completed National Environmental Policy Act actions in February 2014, INL established the Resumption of Transient Testing Program (RTTP). RTTP was a multi-year effort to restart TREAT to reestablish a domestic transient testing capability. After 23 years of standby operations, the RTTP completed restart activities on August 31, 2017, 13 months ahead of schedule and nearly $20 million under budget. RTTP activities included an Environmental Assessment that resulted in a Finding of “No Significant Impact” associated with restarting TREAT, establishment of a compliant Safety Analysis Report (SAR), refurbishment and/or replacement of key reactor systems and components, key system knowledge recovery, reestablishment of configuration management, procedure updates, personnel training and qualification, and demonstration of operational readiness for reactor operations. Several noteworthy factors that contributed to the restart of TREAT include: • Funding to acquire personnel and material resources provided in a timely fashion. • Close coordination with the regulator’s (DOE) nuclear safety program during updates, interactive review, and approval of safety documentation provided for timely update of the TREAT SAR and implementing documents. • Effective management control enabled by utilization of standard outage management techniques with a focus on age-related degradation and updated standards and requirements. • DOE program management ensured efficient implementation of program management tools. These tools focused on clear high-level milestones and spend plans allowing flexibility for the contractor to respond to evolving facility conditions and information in a near-real time manner and with minimal program overhead. This approach enabled efficient execution of work in an environment where determination of required work scope was dependent on performance of inspection, testing, analysis, and evaluation activities. • Implementation of the Contractor Assurance System, with frequent internal and externally-led assessments that facilitated process improvements and corrective actions to ensure the operational readiness for required contractor and DOE readiness assessments and safe nuclear operations. • The RTTP benefited from archived plant documentation and maintenance performed while the plant was in a safe-standby status. • Unique methods of reactivity control allowed for individual and integrated reactor system functional testing, procedure vetting, and personnel training while maintaining the reactor in a safe state.
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Geiger, Gerhard, and Daniel Vogt. "A Combined Leak Detection Method Using Pattern Recognition Techniques." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33297.

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Due to the vast mileage of pipelines throughout the world, it is important that dependable leak detection systems (LDSs) are used to promptly identify when a leak has occurred so that appropriate response actions are initiated quickly. The swiftness of these actions can help reduce the consequences of accidents or incidents to the public, environment, and property. Internal systems [4] such as volume balance, mass balance or real-time transient model (RTTM) based methods are used successfully for that purpose. RTTM based methods offer excellent performance but more field sensors are needed than for simpler methods such as volume balancing, and therefore these methods are less robust because of their greater dependence on sensors which could fail. This paper describes a new leak detection methodology which uses pattern recognition techniques to combine two or more internal methods seamlessly into one scheme hence improving performance, robustness and applicability.
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Geiger, Gerhard. "Pipeline Leak Detection Technologies and Emergency Shutdown Protocols." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33298.

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Pipelines are the least expensive and most efficient way to move liquids and gases, but there is a high potential risk of danger in case of a leak. This paper therefore describes pipeline leak detection technologies and emergency shutdown protocols to ensure reliable and safe pipeline operations. The main focus of this paper is on internal leak detection systems which use existing field instrumentation and usually run continuously. External leak detection systems using dedicated measurement equipment such as probes and sensor cables are briefly considered. Particular emphasis will be placed on model-based techniques such as the Real Time Transient Model (RTTM) and Extended Real Time Transient Model (E-RTTM) methods. In case of a leak, appropriate emergency actions are required to limit the consequences and in particular to protect people and the environment. The last part of the paper therefore is devoted to emergency shut-down protocols.
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Reports on the topic "RTTY"

1

Gundavelli, S., S. Seo, and B. Hesmans. 0-RTT TCP Convert Protocol. Edited by O. Bonaventure and M. Boucadair. RFC Editor, July 2020. http://dx.doi.org/10.17487/rfc8803.

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Renker, G., and G. Fairhurst. Sender RTT Estimate Option for the Datagram Congestion Control Protocol (DCCP). RFC Editor, July 2011. http://dx.doi.org/10.17487/rfc6323.

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Kuzmanovic, A. HSTCP-LP: A Protocol for Low-Priority Bulk Data Transfer in High-Speed High-RTT Networks. Office of Scientific and Technical Information (OSTI), May 2004. http://dx.doi.org/10.2172/826987.

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