580 research outputs found

    Golang Embedded Run-Time

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    Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from student-submitted PDF version of thesis.Includes bibliographical references (page 51).Embedded systems are becoming increasingly complicated due to the emergence of SOCs (system-on-a-chip) with multiple cores, dizzying amounts of peripherals, and complicated virtual memory systems. Unfortunately, performant embedded systems for SOCs are still largely written in either bare-metal C or userspace C because high-level languages running in userspace can have too much latency. This thesis proposes a new system called G.E.R.T, the Golang Embedded Run-Time, for multi-core ARM processors. GERT is a modified version of the Go runtime for bare-metal operation on multi-core ARMv7a SOC's. It is used to evaluate the effectiveness of using a high-level, type-safe, and garbage collected language for embedded applications. G.E.R.T provides the multiprocessor support and basic memory abstractions of a typical embedded toolkit while also enabling the user to leverage the language features of Go in order to develop concurrent embedded programs that are easier to reason about than similar ones written in C.by Yanni Coroneos.M. Eng

    State Capacity in Russia, Past and Present: A Commentary on Yanni Kotsonis, States of Obligation: Taxes and Citizenship in the Russian Empire and Early Soviet Republic

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    The author provides a commentary on Yanni Kotsonis, States of Obligation: Taxes and Citizenship in the Russian Empire and the Early Soviet Republic. Many of the challenges of pre-revolutionary taxation, as identified by Kotsonis, continue to exist even today in Putin’s Russia. The country’s large size, unwieldy state and the precarious basis of individual rights continue to make it difficult to establish a cohesive taxation system. At the same time, taxation is dynamic and contested in many states, precisely because it is difficult to balance the complexity of modern taxation with the fair treatment that citizens expect to receive from their state.L’auteure offre un commentaire sur States of Obligation: Taxes and Citizenship, in the Russian Empire and the Early Soviet Republic, de Yanni Kotsonis. Plusieurs des défis affectant le système fiscal pré-révolutionnaire, tels qu’identifiés par Kotsonis, existent toujours aujourd’hui, même dans la Russie de Putin. Dans ce pays, l’étendue et la lourdeur de l’État, ainsi que les bases chancelantes sur lesquelles reposent les droits de la personne, continuent de faire obstacle à la mise sur pied d’un système fiscal cohérent. Cependant, la fiscalité est à la fois changeante et contestée dans plusieurs états, précisément parce qu’il est difficile de maintenir l’équilibre entre la complexité de la fiscalité moderne avec le traitement équitable auquel les citoyens sont en droit d’attendre de l’État

    Production of Biochar by Slow and Solar-Biomass Pyrolysis: Focus on the Output Configuration Assessment, Adaptability, and Barriers to Market Penetration

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    Biochar production through slow pyrolysis is a versatile and adaptable approach for managing diverse biomass waste. However, their industrial applications remain limited because of their high energy consumption and the emission of toxic gases. Solar-biomass pyrolysis systems have been proposed to address these challenges. This review examines the relationship between output configuration and the adaptability of slow and solar-biomass pyrolysis systems for biochar production. Studies have revealed that the average heat energy required for thermal conversion of biomass to biochar ranges from 1.94 to 2.67 kJ/kg K can be achieved through both conventional and solar pyrolysis routes. Solar pyrolysis demonstrates maximum power and flux density of 1.5 kW and 12,000 kW/m2, respectively, aligning with the power and temperature range of conventional slow pyrolysis. Moreover, solar pyrolysis emits approximately 58.89% less CO2 as compared to the conventional electrical heating-based pyrolysis. Despite these advantages, the market implementation of solar-biomass pyrolysis systems is limited, necessitating the resolution of various barriers for commercial applications. The current review concludes by providing future recommendations, emphasizing the development of an eco-friendly solar-biomass pyrolysis system for large-scale biochar production

    ANALISIS KADAR GROWTH DIFFERENTIATION FACTOR-15, GALEKTIN-3, SOLUBLE SUPPRESSION OF TUMORIGENICITY-2 SERUM DENGAN KEJADIAN DISFUNGSI SISTOLIK DINI VENTRIKEL KANAN PADA PENDERITA HIPERTENSI ARTERI PULMONAL

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    ABSTRAK Analisis Kadar Growth Differentiation Factor-15, Galektin-3, Soluble Suppression Of Tumorigenicity-2 Serum Dengan Kejadian Disfungsi Sistolik Dini Ventrikel Kanan Pada Penderita Hipertensi Arteri Pulmonal Mefri Yanni Hipertensi arteri pulmonal (HAP) merupakan bagian dari hipertensi pulmonal, yang didefinisikan berdasarkan pemeriksaan kateterisasi jantung kanan dengan mPAP > 20 mmHg, tekanan baji arteri pulmonal (pulmonary arterial wedge pressure/PAWP) £ 15 mmHg, dan resistensi vaskular paru (pulmonary vascular resistance, PVR) ≥ 2 WU. Keadaan kompleks pada penyakit ini menyebabkan vasokonstriksi dan remodelling vaskular yang progresif pada arteri pulmonalis bagian distal, sehingga akhirnya mengakibatkan gagal jantung kanan sampai kematian. Penelitian ini bertujuan untuk menganalisis kadar growth differentiation factor-15, galektin-3, soluble suppression of tumorigenicity-2 serum dengan kejadian disfungsi sistolik dini ventrikel kanan (VKa) pada penderita HAP. Penelitian ini merupakan penelitian analitik dengan desain potong lintang yang dilakukan pada pasien HAP dengan dan tanpa disfungsi sistolik dini ventrikel kanan berdasarkan pemeriksaan ekokardiografi speckle tracking menggunakan global longitudinal strain ventrikel kanan. Sampel penelitian terdiri dari 28 orang kelompok HAP tanpa disfungsi VKa dan 37 orang kelompok HAP dengan disfungsi VKa. Data diperoleh melalui rekam medis, pemeriksaan ekokardiografi transtorakal, dan pemeriksaan darah serum dengan ELISA. Data yang diperoleh kemudian dianalisis menggunakan program SPSS. Karakteristik subjek pada penelitian ini didominasi oleh wanita dengan usia rerata 41.52±15.36 tahun, mayoritas berada pada WHO kelas fungsional II dengan etiologi HAP terbanyak disebabkan oleh penyakit jantung bawaan dengan pirau yang belum dikoreksi. Ekspresi kadar ketiga biomarka ditemukan lebih tinggi pada kelompok disfungsi dini VKa dibandingkan kelompok normal. Analisis perbedaan kadar biomarka berdasarkan kejadian disfungsi dini VKa pada penderita HAP di penelitian ini menemukan bahwa hanya kadar konsentrasi GDF-15 memiliki perbedaan yang bermakna secara statistik (p = 0.01). Berdasarkan analisis ROC, didapatkan nilai AUC untuk GDF-15 sebesar 0.67 (rentang kepercayaan 95% 0.54-0.80) dan nilai titik potong untuk menentukan disfungsi sistolik dini ventrikel kanan pada nilai 706,93 pg/ml dengan sensitifitas 54,1% dan spesifisitas 89,3%. Penelitian ini menyimpulkan bahwa terdapat perbedaan kadar ekspresi GDF-15 dengan nilai yang lebih tinggi pada kelompok disfungsi dini VKa, namun tidak ditemukan perbedaan yang signifikan pada kadar ekspresi Gal-3 dan sST2 serum

    Do well or do good?--analysis of conditions and motivations that drive corporate philanthropy in China.

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    Wu, Yanni.Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.Includes bibliographical references (leaves 60-65).Abstract also in Chinese.Chapter Chapter 1: --- Introduction --- p.8Chapter Chapter 2: --- Research SignificanceChapter 2.1 --- Theoretical significance --- p.10Chapter 2.2 --- Empirical significance --- p.11Chapter Chapter 3 --- Literature ReviewChapter 3.1 --- Background of CSR --- p.12Chapter 3.2 --- The conceptual development of CSR --- p.13Chapter 3.3 --- Definition of CSR --- p.16Chapter 3.4 --- Why or why not corporations make philanthropic contributions? --- p.16Chapter 3.4.1 --- Economic rewards for doing corporate philanthropy --- p.16Chapter 3.4.2 --- Public Visibility --- p.17Chapter 3.4.3 --- Institutional perspective --- p.20Chapter 3.5 --- Research on CSR in China --- p.26Chapter 3.6. --- Theoretical Framework --- p.31Chapter Chapter 4: --- Data and Method --- p.33Chapter 4.1 --- Data --- p.33Chapter 4.2 --- Method --- p.35Chapter 4.3 --- Measurement --- p.37Chapter 4.3.1 --- Dependent Variables --- p.37Chapter 4.3.2 --- Independent Variables --- p.38Chapter 4.3.3 --- Control Variables --- p.41Chapter Chapter 5: --- Findings and Discussions --- p.44Chapter 5.1 --- Significance of variables indicating arguments of economic rewards --- p.45Chapter 5.2 --- Significance of variables indicating new institutionalism --- p.47Chapter 5.2.1 --- Variables indicating the normative influence --- p.47Chapter 5.2.2 --- Variables indicating the cultural-cognitive influence --- p.48Chapter 5.3 --- Significance of variable indicating political incentive --- p.51Chapter 5.4 --- Summary --- p.52Chapter Chapter 6: --- Conclusion --- p.57Reference --- p.6

    Modelling the impact of antibody-dependent enhancement on disease severity of Zika virus and dengue virus sequential and co-infection

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    Human infections with viruses of the genus Flavivirus, including dengue virus (DENV) and Zika virus (ZIKV), are of increasing global importance. Owing to antibody-dependent enhancement (ADE), secondary infection with one Flavivirus following primary infection with another Flavivirus can result in a significantly larger peak viral load with a much higher risk of severe disease. Although several mathematical models have been developed to quantify the virus dynamics in the primary and secondary infections of DENV, little progress has been made regarding secondary infection of DENV after a primary infection of ZIKV, or DENV-ZIKV co-infection. Here, we address this critical gap by developing compartmental models of virus dynamics. We first fitted the models to published data on dengue viral loads of the primary and secondary infections with the observation that the primary infection reaches its peak much more gradually than the secondary infection. We then quantitatively show that ADE is the key factor determining a sharp increase/decrease of viral load near the peak time in the secondary infection. In comparison, our simulations of DENV and ZIKV co-infection (simultaneous rather than sequential) show that ADE has very limited influence on the peak DENV viral load. This indicates pre-existing immunity to ZIKV is the determinant of a high level of ADE effect. Our numerical simulations show that (i) in the absence of ADE effect, a subsequent co-infection is beneficial to the second virus; and (ii) if ADE is feasible, then a subsequent co-infection can induce greater damage to the host with a higher peak viral load and a much earlier peak time for the second virus, and for the second peak for the first virus.Fil: Tang, Biao. University of York; Reino Unido. University of Toronto; CanadáFil: Xiao, Yanni. Xi'an Jiaotong University; ChinaFil: Sander, Beate. University of Toronto; CanadáFil: Kulkarni, Manisha A.. University of Ottawa; CanadáFil: Wu, Jianhong. University of York; Reino UnidoFil: Miretti, Marcos Mateo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Posadas; Argentin

    International and Interpretive Dimensions

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    The author engages the comments of his colleagues on his book, States of Obligation, and reiterates the international and interpretive dimensions of the monograph.L’auteur répond aux commentaires émis par ses collègues sur son livre States of Obligation, en reprenant les dimensions à la fois internationale et interprétative de sa monographie

    The Surrogate Country System for WTO Antidumping Investigations against Non-market-economy Countries: China as an Example

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    This thesis examines the Surrogate Country System adopted by WTO members in their antidumping investigations against non-market-economy (NME) countries. In this paper, the Author points out that the existing relevant WTO regulations can easily become importing countries' tool of protectionism. Meanwhile, the obvious legal gap in the WTO laws helps the protectionism by leaving large discretion to importing countries. To reveal the irrationalities of the Surrogate Country System, this paper uses China, a typical NME country, as a sample to display how the system is applied in practice. Then, the paper examines the irrationalities of existing regulations. Towards above issues, the Author puts forward several proposals in Chapter 4. The Author argues for distinguishing transformational countries from NME countries. In cases involving transformational countries, the Author proposes a three-step methodology to calculate the normal value. The Author also provides several strategies for Chinese Government and exporters.MAS

    The Surrogate Country System for WTO Antidumping Investigations against Non-market-economy Countries: China as an Example

    No full text
    This thesis examines the Surrogate Country System adopted by WTO members in their antidumping investigations against non-market-economy (NME) countries. In this paper, the Author points out that the existing relevant WTO regulations can easily become importing countries' tool of protectionism. Meanwhile, the obvious legal gap in the WTO laws helps the protectionism by leaving large discretion to importing countries. To reveal the irrationalities of the Surrogate Country System, this paper uses China, a typical NME country, as a sample to display how the system is applied in practice. Then, the paper examines the irrationalities of existing regulations. Towards above issues, the Author puts forward several proposals in Chapter 4. The Author argues for distinguishing transformational countries from NME countries. In cases involving transformational countries, the Author proposes a three-step methodology to calculate the normal value. The Author also provides several strategies for Chinese Government and exporters.MAS
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