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An evaluation framework for software crowdsourcing

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Frontiers of Computer Science 2013年第5期7卷 694-709页

作者： Wenjun WU Wei-Tek tsai Wei LI State Key Laboratory of Software Development Environment Beihang University Beijing 100191 China School of Computing Informatics and Decision Systems Engineering Arizona State University Tempe AZ85281 USA Department of Computer Science and Technology INLIST Tsinghua University Beijing 100084 China

Recently software crowdsourcing has become an emerging area of software engineering. Few papers have pre- sented a systematic analysis on the practices of software crowdsourcing. This paper first presents an evaluation frame- work to evaluate software crowdsourcing projects with re- spect to software quality, costs, diversity of solutions, and competition nature in crowdsourcing. Specifically, competi- tions are evaluated by the min-max relationship from game theory among participants where one party tries to minimize an objective function while the other party tries to maximize the same objective function. The paper then defines a game theory model to analyze the primary factors in these min- max competition rules that affect the nature of participation as well as the software quality. Finally, using the proposed eval- uation framework, this paper illustrates two crowdsourcing processes, Harvard-TopCoder and AppStori. The framework demonstrates the sharp contrasts between both crowdsourc- ing processes as participants will have drastic behaviors in engaging these two projects.

关键词： crowdsourcing software engineering competi-tion rules game theory

“Smurf”-ing tumors on the chromatin through RNF20

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Protein & Cell 2012年第2期3卷 81-83页

作者： Wen-Wei tsai Peptide Biology Laboratories Salk Institute for Biological StudiesLa JollaCA 92037USA

In the modern mythology of Dutch comic world,Smurfs are little blue creatures who say“smurf”for anything they *** the parlance of molecular biology,there live two Smurfs so named because they are Smad ubiquitination regulator factor 1 and *** like those blue devils on the television,the molecular Smurfs are also versatile;capable of controlling bone development,actin cytoskeleton dynamics,cellular senescence,and planar cell polarity in addition to their prototypic function in transforming growth factorβ(TGF-β)***,the realm of Smurf influence has expanded even further to epigenetic modifications of histones governing the chromatin landscape.A recent study from Ying E.

关键词： Dutch expanded versatile

Anxiolytic property of Lactuca sativa,effect on anxiety behaviour induced by novel food and height

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Asian Pacific Journal of Tropical Medicine 2013年第7期6卷 532-536页

作者： SN Harsha kr Anilakumar Biochemistry and Applied Nutrition Discipline.Defence Food Research Laboratory Mysore-570011.India

Objective:To study anxiolytic property of hydro alchohol extract and to estimate polyphenols present in the extract by ***:To evaluate anxiolytic properly two animal models were used *** T maze and ***(1 mg/kg body wt.) served as the standard anxiolvtic agent for all the *** dried extract of the plant leaf in doses of 100.200 and 400 mg/kg body weight was administered orally to mice for duration of 1? or 30 days and locomotor and anxiolytic activities were *** was estimated using HPLC. Results:The HPLC analysis of the polyphenols revealed the presence chlorogenic acid,vanillin, epicatechin,caffeic acid,rutin hydrate,sinapic acid,quercetin-3-rhamnoside.p-coumeric acid and *** spent and number of entries into the open arm was improved in 30 days treated animals than that of 15 days treated groups,200 and 400 mg/kg body weight treated group showed significant results when comparing with the control ***:Te hydro alcohol extract rich in Polyphenols and other secondary metabolites is a potent anxiolytic agent.

关键词： Anxiety Lactuca sativa Polyphenols Hyponeophagia Elevated T maze test

Characterization of Inclusions and Countermeasures to Reduce Nozzle Clogging

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Journal of Iron and Steel Research International 2011年第S2期18卷 310-319页

作者： Hwan-Tang Thomas tsai Hunan Valin Steel Company 111 Furongzhonglu II Changsha Hunan China

Total oxygen analysis, chemical or electrolytic extraction and optical microscope with image analyzer are common methods to measure the cleanliness of steel. A re-melting technique was developed to float out inclusions and be examined under SEM or Cathodoluminescence microscopy. Evaluation of inclusions by optical emission spectrometer, ultrasonic tests after hot rolling, slab milling and defect mapping as well as a computer-controlled SEM analysis are described. As a result, the source causes of defects may be identified and countermeasures developed. Tundish nozzle clogging is quantified by a nozzle clogging factor, which is monitored on-line. Inclusion characterization and the implementation of a clean steel practice have led to a reduction of nozzle clogging and an increased cast string length with improved steel quality.

关键词： inclusion characterization nozzle clogging clean steel practice

Fluid Inclusion Studies and Geochemistry of Rare Earth Elements of Hydrothermal Fluorites from Pohrenk,Kirsehir,Central Turkey

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Acta Geologica Sinica(English Edition) 2001年第1期75卷 59-65页

作者： Sükrü KOC Ali RECBER Geology Department Ankara UniversityAnkara 06100Turkey General Directorate of Mineral Research and Exploration Ankara

Fluorite mineralization occurs along fractures and cracks of Middle Eocene and Pliocene limestones and marls in the north and northeast of the P?hrenk region (?i?ekdagi, Kirsehir). Tb/Ca – Tb/La and Y/Ho ratios were obtained from REE contents of fluorites which have revealed that mineralization is of hydrothermal type. Negative Ce anomalies and positive Eu anomalies reflect that hydrothermal solutions once had high oxygen fugacity. Fluid inclusion studies indicate that homogenization temperatures of mineralization varied between 90°C and 200°C, and hydrothermal solutions are composed of NaCl + KCl + MgCl2 + H2O. In addition, salinity measurements show that hydrothermal solutions were mixed with meteoric or rock formation water. Geologic setting, REE geochemistry and fluid inclusion studies suggest that mineralization was deposited from a solution generated by mixing of magmatic and meteoric water under epithermal conditions.

关键词： fluorite rare earth elements fluid inclusions

Collaborative software design in an SOA environment

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Science in China(Series F) 2006年第6期49卷 821-842页

作者： W.T.tsai Arizona State University Tempe AZ 85287-8809 USA

Based on the current Service-Oriented Architecture （SOA）, this paper proposes a new collaborative software design methodology in an SOA Environment： the Global Software Enterprise （GSE）. The current SOA is producer-centric, in which the service providers publish services that they produce and let the consumers to search avail- able services to compose their applications. GSE is build on top of Consumer-Centric SOA （CCSOA）, in which the application builders publish their application requirements for the service providers to follow when producing or customizing services to support the application. This new methodology reduces the workload and improves the application description capability of the service consumers. It also extends the capacity of design and code sharing, and thus further improves the software productivity. This paper presents the concepts, architecture, enabling techniques, and illustrative examples of collaborative software design in GSE.

关键词： SOA,Global Software Enterprise (GSE) CCSOA software productivity

A Proposed Architecture for Local-Host and AWS with Multiagent System

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Intelligent Automation & Soft Computing 2023年第6期36卷 2787-2802页

作者： Jaspreet Chawla Anil kr Ahlawat Department of Computer Science&Engineering JSS Academy of Technical EducationNoidaAffiliated to AKTULucknow201301India Department of Computer Science&Engineering KIET Group of InstitutionsGhaziabadAffiliated to AKTULucknow201001India

Cloud computing has become one of the leading technologies in the world *** benefits of cloud computing affect end users *** are several cloud computing frameworks,and each has ways of monitoring and providing *** computing eliminates customer requirements such as expensive system configuration and massive infrastructure while improving dependability and *** the user’s perspective,cloud computing makes it easy to upload multiagents and operate on different web *** this paper,the authors used a restful web service and an agent system to discuss,deployments,and analysis of load performance parameters like memory use,cen-tral processing unit(CPU)utilization,network latency,etc.,both on localhost and an Amazon Web Service Elastic Cloud Computing(AWS-EC2)*** Java Agent Development Environment(JADE)tool has been used to propose an archi-tecture and conduct a comparative study on both local and remote *** is an open-source tool for maintaining applications on AWS *** focus of the study should be to reduce the complexity and time of load perfor-mance parameters by using an agent system on a cloud server instead of establish-ing a massive infrastructure on a local system,even for a small application.

关键词： Amazon web service jade local host rest web service

Chiral Synthesis of the Key Intermediate of Diterpenoids

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Chinese Chemical Letters 1997年第11期8卷 949-950页

作者： Hao, XJ Node, MB Fuji, kr Chinese Acad Sci Kunming Inst Bot Kunming 650204 Peoples R China Kyoto Pharmaceut Univ Yamashima Ku Kyoto 607 Japan Kyoto Univ Inst Chem Res Uji 611 Japan

(-)-Methyl(4R, 5S, 10R)-14-methoxypodocarpa-8, 11, 13-triene-19-oate(1), which is the key intermediate for synthesis of diterpenoids, was synthesized from (R)-(+)-2-methyl-2-(2`-nitrovinyl)-delta-valerolactone(2).

关键词： ADDITION ELIMINATION PROCESS NITROOLEFINATION LACTONES

Chest pain in a heart transplant recipient:A case report

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World Journal of Clinical Cases 2021年第16期9卷 3966-3970页

作者： Yu-Jen Chen Chien-Sung tsai tsai-Wang Huang Department of Surgery Tri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan Division of Cardiovascular Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan Division of Thoracic Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan

BACKGROUND Heart transplantation is recommended for the treatment of patients with refractory heart *** pain after heart transplantation is usually considered noncardiac owing to the denervated ***,data from case reports on tacrolimus-induced achalasia after heart transplantation are *** aimed to present a case of tacrolimus-induced achalasia that developed after heart tran-splantation,which was successfully relieved by laparoscopic Heller *** SUMMARY A 67-year-old man with a history of Type 2 diabetes mellitus,hyperlipidemia,and dilated cardiomyopathy had congestive heart failure following orthotopic heart transplantation with tacrolimus treatment 12 years *** the 10-year follow-up after the heart transplantation,the patient presented with persistent cough,dysphagia,heartburn,and retrosternal chest pain lasting for 2 *** endoscopy revealed no specific *** years later,the patient experienced the same symptoms,including chest pain lasting for 4 *** and manometry confirmed the presence of *** reports showed that discontinuing calcineurin inhibitor(CNI)treatment and endoscopic botulinum toxin injection could treat CNI-induced *** to the risk of rejection of the transplanted heart and considering the temporary benefits of botulinum toxin injection in achalasia,the patient underwent laparoscopic Heller *** was relieved without *** months later,he had no signs of recurrence of the *** In transplant patients with chest pain and gastrointestinal symptoms, CNIinducedachalasia may be one of the differential diagnoses. Esophagogram/manometry is useful for diagnosis.

关键词： Heart transplantation Refractory heart failure Chest pain Achalasia Esophagogram Case report