635,363 research outputs found
Pay It Forward: Author Survey Results
No full textThese data files contain raw, anonymized response data, as well as a data codebook, from the author survey conducted in May and June 2015 as a part of the Pay It Forward project. The survey was distributed to approximately 15,000 academics at the University of British Columbia, The Ohio State University, the University of California, Irvine, and the University of California, Davis, and received an overall response rate of 14.1%.Funding provided by: Andrew W. Mellon FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000873Award Number: 41400690Survey conducted using Qualtrics software. Respondents included faculty, graduate students, and post-doctoral researchers from the University of British Columbia, The Ohio State University, the University of California, Irvine, and the University of California, Davis. The survey was open from May 20, 2015 to June 10, 2015. IRB approval for this study was obtained by the University of Tennessee, Knoxville, Office of Research Compliance
IT-Enabled Information-Intensive Services
No full textIn information-intensive services (IISs), information interactions have a significant effect on service-value creation. Recent innovations in IT have facilitated the creation of various types of IT-enabled IISs (IT-IIS) in which IT is essential for information interactions. The authors introduce the generic composition of the IIS value-creation system, then view this system from an IT-oriented perspective to propose classifications for various IT-IIS types. This knowledge serves as a basis for designing new IT-IISs. The authors also conducted two IT-IIS design case studies.ope
Oral History Interview, Diana Lim (2291)
No full textIn her 2022 interview with Emily Layman, Diana Lim details her memories and thoughts of being a student in the University of Wisconsin-Madison’s dance program. To learn more about this oral history, download & review the index first (or transcript if available). It will help determine which audio file(s) to download & listen to.In her 2022 interview with Emily Layman, Diana Lim details her memories and thoughts of being a student in the University of Wisconsin-Madison’s dance program. Lim discusses her admiration of the university, influential faculty members and guest artists, as well as her career after graduating. The interview was conducted for the inclusion into the Women in PE part of the Women@UW Oral History Project for the UW-Madison Archives & Records Management oral history collection
Preparation of alkyl (R)-(-)-3-hydroxybutyrate by acidic alcoholysis of poly-(R)-(-)-3-hydroxybutyrate
No full textAn efficient method for the preparation of optically active alkyl (R)-(-)-3-hydroxybutyrates by chemical depolymerization of biopolymer, poly-(R)-(-)-(3-hydroxybutyrate), was established. This method consists of simple recovery of poly-(R)-(-)-(3-hydroxybutyrate) from bacterial cells followed by acidic alcoholysis. When poly-(R)-(-)-(3-hydroxybutyrate) was purified by a simple digestion method that used 0.2 N sodium hydroxide, alkyl (R)-(-)-hydroxybutyrates were most efficiently produced by alcoholysis with anhydrous hydrochloric acid. (C) 2000 Elsevier Science Inc. All rights reserved.This work was supported by the Ministry of Commerce,
Industry and Energy, Korea
Professional attachment report [with] Chio Lim & Associates.
No full textThis report serves as a summary of the professional attachment. Besides touching on author experiences working with Chio Lim & Associates (CLA), it wil also touch on other issues before, during and after the program
Lim Keun-Woo
No full text학위논문(박사)--아주대학교 일반대학원 :컴퓨터공학과,2014. 2본 논문에서는 WLAN 기반 멀티 홉 네트워크에서 데이터를 보급할 때 서비스 품질 (QoS) 을 향상시키기 위한 효율적인 기술에 대해 연구한다. 스마트폰 및 이동 네트워킹 기술이 큰 발전을 이룸에 따라, 새로운 무선 네트워킹 서비스 및 어플리케이션이 대두될 것으로 기대되고 있다. 이 트랜드를 따라 WLAN 기반의 네트워킹 제품 및 디바이스가 미래 서비스를 지원하기 위한 가장 핵심 기술로 떠오르고 있다. 하지만, 기존 WLAN 환경에서의 QoS 를 지원하기 위한 연구는 미래의 다양한 서비스 및 어플리케이션이 요구하는 요구사항을 만족할 수 없다. 그렇기 때문에, WLAN 기반의 통신 기술은 미래의 다양한 서비스 지원을 위해 이러한 요구사항을 충족하고 효율적인 QoS 를 지원할 수 있는 방법을 제시하여야 한다.
본 논문에서는 WLAN 기반 멀티 홉 네트워킹 환경의 다양한 미래 시나리오 및 사용 예시를 분석하고 이러한 환경에서 발생할 수 있는 문제점을 분석한다. 또한, 이러한 문제점을 해결하기 위하여 새로운 기술을 제시하고, 성능 분석을 통해 해당 기술들이 미래 다양한 WLAN 기반 서비스의 효율성을 높일 수 있다는 것을 증명한다. 특히 QoS 향상을 위한 다음 3가지 기술에 초점을 맞춘다: 1) 차량 통신 시스템에서의 QoS 향상 기술, 2) 실시간 멀티미디어 감시 시스템 기술, 3) 에너지 효율적인 QoS 향상 기술. 각각의 QoS 향상 기술은 WLAN 기반 멀티 홉 네트워킹 환경에서 요구하는 다양한 요구 사항에 맞춰 서비스 품질을 향상시킬 수 있을 것이라 기대된다.CHAPTER I INTRODUCTION
I.A Contributions of this Thesis
I.B Overview of the Thesis
CHAPTER II BACKGROUND AND RELATED WORK
II.A IEEE 802.11 WLAN standard
III.A.1 Service Differentiation
III.A.2 Multi-hop routing
III.A.3 Mobility Management
III.A.4 Wi-Fi Direct for mobile D2D communication
II.B Taxonomy of QoS in WLAN based networks
II.C Work on Ensuring Mobile Reliability
II.C.1 Related Work on Fast Handover
II.C.2 Related Work on Mobile Data Provisioning
II.D Work on WLAN Access Control
II.D.1 Related Work on Rate Control
II.D.2 Related Work on Multi-hop Flow Control
II.D.3 Related Work on Admission Control
II.E Work on Service Differentiation
II.E.1 Related Work on Queue-based Service Differentiation
II.E.2 Related Work on Station-based Service Differentiation
II.F Design Considerations for enhancing QoS in future services
CHAPTER III QOS-ENHANCED DATA HARVESTING IN VEHICULAR NETWORKS
III.A Background
III.B Proposed Scheme
III.B.1 Scheme 1: Multi-hop Data Harvesting with Replicas (MDH-R)
III.B.2 Scheme 2: Multi-hop Data Harvesting with Replicas and Aggregation (MDH-RA)
III.C Performance Evaluation
III.C.1 Simulation Environments
III.C.2 Simulation Results of MDH-R
III.C.3 Simulation Results of MDH-RA
III.D Chapter Summary
CHAPTER IV REAL-TIME DATA DISSEMINATION IN WLAN MESH NETWORKS
IV.A Background
IV.B Proposed Scheme
IV.B.1 Adaptive Mesh Network Architecture
IV.B.2 Multi-Gateway Route Selection
IV.B.3 Congestion Prediction
IV.B.4 Congestion Avoidance
IV.B.5 Routing Loop Prevention
IV.B.6 Example of MGR-CA Operation
IV.C Performance Evaluation
IV.C.1 Testbed Implementation
IV.C.2 Simulation Results
IV.D Chapter Summary
CHAPTER V POWER-EFFICIENT QOS IN WLAN BASED D2D ENVIRONMENTS
V.A Background
V.B Proposed Scheme
V.B.1 Problem Statement
V.B.2 Dynamically Synchronized Power Management
V.B.3 Adaptive CTWindow Control (AC)
V.B.4 Adaptive Temporary CTWindow Control (AT)
V.C Performance Evaluation
V.C.1 Formulation of Duty Cycle and End-to-End delay
V.C.2 Performance Evaluation
V.C.3 Formulation and Evaluation of AC and AT control
V.D Chapter Summary
CHAPTER VI CONCLUSIONDoctoralThis thesis focuses on methods of enhancing Quality-of-Service (QoS) in WLAN based multi-hop networks for more efficient data dissemination. With great advancements in the technology of smartphones and mobile networking, the global society is beginning to embrace another boom of various wireless networking services and applications. Following this trend, WLAN based networking devices and products have become the most popular means of data communication for supporting these future services. However, contrary to existing QoS researches conducted in WLAN environments, these future applications have unique demands and requirements depending on the type of service they provide. Therefore, as being the primary means of communication in the present and future alike, WLAN based communication technology must account for these difference in services and provide efficient means of supporting QoS for them.
This thesis views various scenarios and use cases of WLAN based multi-hop networking environments and analyzes the problems that current WLAN systems may pose. To account for these problems, novel solutions are proposed and analyzed to show that the contributions in this thesis can greatly improve the efficiency of future WLAN based services. Especially, three technologies of supporting QoS are discussed: 1) Enhancing QoS for data dissemination in vehicular speed communications systems, 2) Streaming multimedia surveillance systems, and 3) Power efficient QoS for battery-limited systems. It is expected that each technology can improve the performance of QoS in WLAN based multi-hop networking applications depending on the various requirements that they demand
INTEGRATED ECOLOGICAL PLANNING IN SINGAPORE: NEOTIEWPIA ECO-VILLAGE IN BUSTLING METROPOLITAN
No full textABSTRACT :The Neotiewpia Eco-Village is located within the Lim Chu Kang district at the north of Singapore. The Eco-Village only comprised of 3.5 sq km. Meanwhile the area was
dominated by farms, chalets and Sungei Buloh Wetland Reserve. In 2006, National University of Singapore, School of Design and Environment (SDE), MSc. Environmental Management and Nature Society of Singapore initiated an ecological planning exercise within the Neotiewpia site
to reduce the environmental impact from the development while providing Eco-friendly Tourism and R&D activities that feasible in the site. We did participate in the exercise and we tried explaining the ecological process, the limitation and potential development for integrated
ecological planning framework in Developing Countries like Indonesia, Brazil, etc with high ecological-values ecosystems. The Vision of Neotiewpia was “A Model Eco-Village that Respects its Natural Heritage, Builds Strong Community Links and Promotes Economic Development on Nature’s Premises." And Neotiewpia was successfully planned and designed with integrated ecological planning approach. It embraced the land evaluation and impact assessment. Further the plan was found feasible by the Singapore Government by earmarking the Lim Chu Kang and Kranji for Agri-tainment development in 2008 (although partially
implemented). The Neotiewpia or Lim Chu Kang area was found thriving with Green-Economy and Agro-Tourism. This integrated ecological planning could be translated to other areas in Developing Countries with agriculture potential and facing development pressures such as Neotiewpia. This concept would give alternate Green-Solution to the current economic crisis
Rhinolophus chiewkweeae Yoshiyuki and Lim 2005
No full textRhinolophus chiewkweeae Yoshiyuki and Lim, 2005 Rhinolophus chiewkweeae Yoshiyuki and Lim, 2005: 29; Gunung Ledang, Tangkak, Muar, Johor, MALAYSIA, 1276 m (Boo-Liat Lim, collector; NSMT-M 33472) [13]. Common English name: Chiewkwee’s Horseshoe Bat Barcode Index Number: There are no DNA barcodes recorded under this name on BOLD. Remarks: R. pearsonii is reported to occur in Peninsular Malaysia [9] although we could not find any precise locality reports. It is likely that the records of R. pearsonii from Peninsular Malaysia, if valid, may actually represent R. chiewkweeae [154]. However, our NJ analysis revealed that the DNA barcodes under these names (but not including Peninsular Malaysia specimens) were 12% divergent in COI mtDNA (see Fig 3 in [154]). IUCN status: Not Evaluated Recorded at: Melaka: Asahan Forest Reserve [13]; Johor: Gunung Ledang and Labis Forest Reserve [13]; Kedah: Lubok Semilan, Ulu Melaka in Pulau Langkawi and Weng Subcatchment Area in Ulu Muda Forest Reserve Forest Reserve [13]; Perlis: Wang Kelian State Park [50]; Perak: Temenggor Lake [69]; Terengganu: Tasik Kenyir [69], Sungai Buweh [154]. R. chiewkweeae has been reported from lowland, hill and submontane dipterocarp forests, and an island [13, 154]. In Peninsular Malaysia, all reported individuals were caught in mature and secondary dipterocarp forests [154]. The low capture rate of R. chiewkweeae suggested that the population density of the species in Peninsular Malaysia is likely to be very low [50, 154]Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on page 30, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/425135
Residually finite groups / Lim Hui Min
No full textIn this thesis, we will study a stronger residually finite property called weak potency. More precisely, we aim to study the weak potency of HNN extensions and generalised free products of weakly potent groups and the main tools we used are lters.
First we study the weak potency of HNN extensions by introducing the concept of h-filters and then use it to prove the main criterion. Then we prove several characterisations for the weak potency of certain HNN extensions with cyclic associated subgroups as well as a characterisation for the Baumslag-Solitar groups. Next, we will also apply our results to HNN extensions of finitely generated nilpotent groups. We shall give characterisations for certain HNN extensions of characteristically weakly potent groups with finitely generated central associated subgroups and HNN extensions of free abelian groups of finite rank to be weakly potent.
In the last part we study the weak potency of generalised free products. Werst introduce w-filter and prove a criterion for generalised free products to be weakly potent. By using it, we then give characterisations for the weak potency of generalised free products with cyclic amalgamated subgroups and with central amalgamated subgroups. Then we extend the results to tree products of finitely many groups. Finally we show that certain one-relator groups with torsion are weakly potent
Competition between LIM-binding domains
No full textLMO (LIM-only) and LIM-HD (LIM-homeodomain) proteins form a family of proteins that is required for myriad developmental processes and which can contribute to diseases such as T-cell leukaemia and breast cancer. The four LMO and 12 LIM-HD proteins in mammals are expressed in a combinatorial manner in many cell types, forming a transcriptional 'LIM code'. The proteins all contain a pair of closely spaced LIM domains near their N-termini that mediate protein-protein interactions, including binding to the approximately 30-residue LID (LIM interaction domain) of the essential co-factor protein Ldb1 (LIM domain-binding protein 1). In an attempt to understand the molecular mechanisms behind the LIM code, we have determined the molecular basis of binding of LMO and LIM-HD proteins for Ldb1(LID) through a series of structural, mutagenic and biophysical studies. These studies provide an explanation for why Ldb1 binds the LIM domains of the LMO/LIM-HD family, but not LIM domains from other proteins. The LMO/LIM-HD family exhibit a range of affinities for Ldb1, which influences the formation of specific functional complexes within cells. We have also identified an additional LIM interaction domain in one of the LIM-HD proteins, Isl1. Despite low sequence similarity to Ldb1(LID), this domain binds another LIM-HD protein, Lhx3, in an identical manner to Ldb1(LID). Through our and other studies, it is emerging that the multiple layers of competitive binding involving LMO and LIM-HD proteins and their partner proteins contribute significantly to cell fate specification and development
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