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n-Pentane & n-Hexane as Coguests of sH Hydrates in the Mixture with 2,2-Dimethylbutane and Methane

  • Lee, Jong-Won;Lu, Hailong;Moudrakovski Igor L.;Ripmeester Christopher I. RatcliffeJohn A.
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.58-61
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    • 2006
  • n-Pentane and n-hexane, previously regarded as non-hydrate formers, are found to form structure H hydrate in mixtures with 2,2-dimethylbutane. Even though they are thought to be too large to fit into the largest cage of the structure H hydrate, powder XRD and NMR measurements show that they form gas hydrates in mixtures with other sH hydrate former. These findings are of fundamental interest and also will impact the composition and location of natural gas hydrates and their potential as global energy resource and climate change materials.

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Virus-like Particles and Cellular Changes in Plants Infected with Sweetpotato Viruses

  • Sim, Jeong-Gu;Valverde, Rodrigo;Clark, Christopher;Chun, Se-Chul
    • The Plant Pathology Journal
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    • v.24 no.1
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    • pp.36-45
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    • 2008
  • Studies with the transmission electron microscope were used to detect and attempt to identify viruses infecting sweetpotato (Ipomoea batatas) and other Ipomoea species. Flexuous-rods, short curved-rods, and spherical virus-like particles were observed in cells of symptomatic plants. Also, various cytopathic changes such as crystals, vesicles, fibril structures, and cylindrical inclusions were observed. The present study showed that some of these cytopathic changes were associated with some viral groups, which might be helpful in diagnosis.

Complementary and alternative medicine for neck pain: Focus on manipulative therapies-chiropractic and osteopathic techniques

  • Plastaras, Christopher Thomas;Schran, Seth;Constantino, Joseph
    • CELLMED
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    • v.4 no.4
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    • pp.25.1-25.4
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    • 2014
  • Neck pain is an extremely common symptom with a variety of potential etiologies. A significant number of patients are turning to complementary and alternative medicine therapies. In particular, chiropractic and osteopathic manipulation techniques are discussed. "Low quality evidence", as per the GRADE system criteria used by the Cochrane Review, supports the beneficial effects of these treatments Complications are generally benign and self-limited although occasional catastrophic consequences have been documented. Medical practitioners should familiarize themselves and their patients with the risks and benefits of complementary and alternative medicine in order to make informed decisions.

Electrical Machines for High Speed Applications with a Wide Constant-Power Region Requirement

  • Gerada, David;Borg-Bartolo, David;Mebarki, Abdeslam;Micallef, Christopher;Brown, Neil L.;Gerada, Chris
    • Journal of international Conference on Electrical Machines and Systems
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    • v.1 no.3
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    • pp.274-281
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    • 2012
  • This paper discusses the issues associated with the design of high speed machines for applications with a wide constant-power region requirement. Using described multi-domain design environments which put equal weight on the electromagnetic, thermal and mechanical considerations, the suitability and power density achievable using Induction Machines (IM) and Permanent Magnet Synchronous Machines (PMSM) are compared.

HOLOMORPHIC FUNCTIONS AND THE BB-PROPERTY ON PRODUCT SPACES

  • Boyd, Christopher
    • Journal of the Korean Mathematical Society
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    • v.41 no.1
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    • pp.39-50
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    • 2004
  • In [25] Taskinen shows that if $\{E_n\}_n\;and\;\{F_n\}_n$ are two sequences of Frechet spaces such that ($E_m,\;F_n$) has the BB-property for all m and n then (${\Pi}_m\;E_m,\;{\Pi}_n\;F_n$) also has the ΒΒ-property. Here we investigate when this result extends to (i) arbitrary products of Frechet spaces, (ii) countable products of DFN spaces, (iii) countable direct sums of Frechet nuclear spaces. We also look at topologies properties of ($H(U),\;\tau$) for U balanced open in a product of Frechet spaces and $\tau\;=\;{\tau}_o,\;{\tau}_{\omega}\;or\;{\tau}_{\delta}$.

Pathogenesis, evaluation, and management of osteolysis after total shoulder arthroplasty

  • Kunze, Kyle N.;Krivicich, Laura M.;Brusalis, Christopher;Taylor, Samuel A.;Gulotta, Lawrence V.;Dines, Joshua S.;Fu, Michael C.
    • Clinics in Shoulder and Elbow
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    • v.25 no.3
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    • pp.244-254
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    • 2022
  • Radiographic osteolysis after total shoulder arthroplasty (TSA) remains a challenging clinical entity, as it may not initially manifest clinically apparent symptoms but can lead to clinically important complications, such as aseptic loosening. A thorough consideration of medical history and physical examination is essential to rule out other causes of symptomatic TSA-namely, periprosthetic joint infection-as symptoms often progress to vague pain or discomfort due to subtle component loosening. Once confirmed, nonoperative treatment of osteolysis should first be pursued given the potential to avoid surgery-associated risks. If needed, the current surgical options include glenoid polyethylene revision and conversion to reverse shoulder arthroplasty. The current article provides a comprehensive review of the evaluation and management of osteolysis after TSA through an evidence-based discussion of current concepts.

Government's Roles in Public Private Partnership Toll Road Projects

  • Rohman, Mohammad Arif;Doloi, Hemanta;Heywood, Christopher
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.381-385
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    • 2015
  • This research aims to investigate critical factors of the government's role in achieving success in Public Private Partnership (PPP) toll road projects in Indonesia according to government and private sectors' perceptions. A preliminary interview Subsequently a questionnaire survey was also conducted involving 143 respondents across the two sectors from eight operating toll were five critical factors of the government's roles in achieving success in PPP toll road projects, namely; "Active involvement in overall project stage activities", "Establishment of good bureaucracy", "Provision of conducive environment", "Appropriate project planning and competitive tendering" and "Provision of appropriate government support and supervision". This research finding is expected to assist the government in defining clear roles and underlying responsibilities in development of PPP toll roads in Indonesia.

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Anterior interosseous nerve palsy in the early postoperative period after open capsular release for elbow stiffness: a case report

  • Christopher A. Colasanti;Michael Boin;Jacques Hacquebord;Mandeep S. Virk
    • Clinics in Shoulder and Elbow
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    • v.26 no.4
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    • pp.462-466
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    • 2023
  • Surgical release of elbow contracture is associated with injury to structures traversing the elbow. To date, only one other case report has been published describing anterior interosseous nerve (AIN) palsy that developed immediately after open elbow contracture release and debridement. Here we describe the unique case of a patient that developed AIN palsy 1 week after operation, including magnetic resonance imaging and electrodiagnostic studies, to shed some light on the etiology of this rare complication.

A Study on Dok-Rak-Dang and Hyang-Dan, Upper Class Houses of Chosun Dynasty, with The Perspective of Deconstructionist Art Theory (독락당(獨樂堂) 일곽(一郭)과 향단(香壇)의 해체예술론(解體藝術論)적 고찰 - Christopher Norris의 해체예술의 세 특성을 중심으로 -)

  • Kweon, Tae-Ill
    • Journal of architectural history
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    • v.15 no.4
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    • pp.87-105
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    • 2006
  • Dok-Rak-Dang and Hyang-Dan, upper class houses of Chosun Dynasty on the early and mid 16th century, are generally known as specific style houses among traditional residences in Korea. Architectural singularities of these two residences are summarized as double facades, uncertain circulation, self-secluding construction, dilemmatic structure, and rotative circulation that are far from architectonic principle of that time. Characters of Deconstructionist Art, deconstruction of binary oppositions, double session, displacement without reversal, and paradox, are very similar to those of two residences both as a material phenomenon and as a metaphysical idea. Thus, this paper attempt to analyze architectural singularities of Dok-Rak-Dang and Hyang-Dan with the perspective of Deconstructionist Art Theory.

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Application of a PID Feedback Control Algorithm for Adaptive Queue Management to Support TCP Congestion Control

  • Ryu, Seungwan;Rump, Christopher M.
    • Journal of Communications and Networks
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    • v.6 no.2
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    • pp.133-146
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    • 2004
  • Recently, many active queue management (AQM) algorithms have been proposed to address the performance degradation. of end-to-end congestion control under tail-drop (TD) queue management at Internet routers. However, these AQM algorithms show performance improvement only for limited network environments, and are insensitive to dynamically changing network situations. In this paper, we propose an adaptive queue management algorithm, called PID-controller, that uses proportional-integral-derivative (PID) feedback control to remedy these weak-Dalles of existing AQM proposals. The PID-controller is able to detect and control congestion adaptively and proactively to dynamically changing network environments using incipient as well as current congestion indications. A simulation study over a wide range of IP traffic conditions shows that PID-controller outperforms other AQM algorithms such as Random Early Detection (RED) [3] and Proportional-Integral (PI) controller [9] in terms of queue length dynamics, packet loss rates, and link utilization.