nils-herrmann/clean_scirepeval huggingface dataset:
Making sense of danmu: Coherence in massive anonymous chats on Bilibili.com
Year: 2020

Although coherence has been widely studied in computer mediated communication (CMC) insufficient attention has been paid to emergent multimodal forms. This study analyzes a popular commentary system on Chinese and Japanese video sharing sites known as danmu or danmaku where anonymous comments are superimposed on and scroll across the video frame. Through content and multimodal discourse analysis, we unpack danmu mediated communication analyzing the newest interface (on Bilibili.com) the comments, the interpersonal interactions and the unusual use of the second person pronoun. Results show that despite the technological constraints (hidden authorship, unmarked sending date and lack of options to structure comments) users construct order in interactions through repetition, danmu specific expressions and multimodal references, while using playful language to make fun. This study provides an up to date analysis on an increasingly popular CMC medium beyond well studied social networking sites, and broadens the understanding of coherence in contemporary CMC.
One of hydrogen isotopes quantitative dispensing device and method for dispensing
Year: 2014

The present invention discloses a quantitation of hydrogen isotopes in the gas partial art dispensing means dispensing apparatus and method, the dispensing apparatus comprises a large hydrogen storage vessel, a quantitative dispensing means, pumping systems and a small hydrogen storage vessel, the dispensing the method comprises the steps of connecting gt; heating gt; vacuum gt; cooling gt; quantitative means, the present invention is to improve the dispensing accuracy, the control accuracy and the degree of automation, reduced costs, can be used for hydrogen isotope (protium deuterium tritium) in the packaging.
Fast and cheap stepper motor drive
Venue: 2015 International Conference on Renewable Energy Research and Applications (ICRERA)
Year: 2015

Stepper motors are widely used in many industrial applications especially in the applications that need high precise control position. Stepper motor is used in most applications which require discrete movement. Today most robotic systems, automatic digital camera focus and zoom functions, use stepper motors. Medically stepper motor used inside scanners, multi axis stepper motor microscopic or nano scopic motion control of automated devices, dispensing pumps, samplers, and chromatograph auto injectors, and in aircraft sensors, stepper motors are used in antennas, scanning equipment etc. In general sensing signals that represent the shaft position of any motor may be a difficult due to high cost and some restricted limitations. Stepper motor drive doesn't need any sensing device to sense the shaft position and can be considered as cheap drive compared by other drive systems. This paper is focused on controlling uni polar stepper motor by a simple decoder (CD4017) ignited from a timer 555 circuit also by using a microcontroller as PIC 16F84A and the output of the decoder or the PIC are fired the MOSFET Bridge or the transistor bridge (S8050) The Bridge in its turn allows the motor to rotate in both directions with highly procession speed control technique. The proposed system is simulated by Proteus program and tested through a small prototype system including stepper motor and its control circuit.
Size dependence of tracer diffusion in a laponite colloidal gel.
Venue: Langmuir the ACS journal of surfaces and colloids
Year: 2009

Using a fluorescence recovery after photobleaching (FRAP) technique, we present measurements of probe diffusion in a colloidal glass a Laponite suspension. By varying the probe size over 2 orders of magnitude, as well as the concentration of the colloidal glass, we evidence and quantify the deviations of the probe diffusivity from the bulk Stokes Einstein expectations. These experiments suggest that the probe diffusion in the dynamically arrested Laponite structure is mainly controlled by the ratio between the probe size and the typical clay platelets interdistance. Comparing with a simple hindered diffusion mechanism, the reduction of tracer diffusion is discussed in terms of the hydrodynamic interaction of the probe with the Laponite structure. Finally, these results can be interpreted in terms of a scale dependent viscosity of the colloidal glass.
Efficient luminescent solar cells based on tailored mixed cation perovskites
Venue: Science Advances
Year: 2016

Researchers developed a perovskite solar cell with high power conversion efficiency >20% and intense electroluminescence yield (0.5% We report on a new metal halide perovskite photovoltaic cell that exhibits both very high solar to electric power conversion efficiency and intense electroluminescence. We produce the perovskite films in a single step from a solution containing a mixture of FAI, PbI2, MABr, and PbBr2 (where FA stands for formamidinium cations and MA stands for methylammonium cations) Using mesoporous TiO2 and Spiro OMeTAD as electron and hole specific contacts, respectively, we fabricate perovskite solar cells that achieve a maximum power conversion efficiency of 20.8% for a PbI2/FAI molar ratio of 1.05 in the precursor solution. Rietveld analysis of x ray diffraction data reveals that the excess PbI2 content incorporated into such a film is about 3 weight percent. Time resolved photoluminescence decay measurements show that the small excess of PbI2 suppresses nonradiative charge carrier recombination. This in turn augments the external electroluminescence quantum efficiency to values of about 0.5% a record for perovskite photovoltaics approaching that of the best silicon solar cells. Correspondingly, the open circuit photovoltage reaches 1.18 V under AM 1.5 sunlight.
Aerodynamic optimization for variable speed wind turbines based on wind energy capture efficiency
Year: 2018

The variable speed wind turbine (VSWT) is a dominant type of wind power generator. In order to improve wind energy production, its off design performance has been considered for aerodynamic optimization, since it frequently operates at non optimal tip speed ratio (TSR) in the maximum power point tracking (MPPT) mode. In this paper, the objective function for multi point aerodynamic optimization is firstly derived as wind energy capture efficiency. Then, a new multi point aerodynamic design method whose objective function can approximate wind energy capture efficiency is proposed. Since the proposed optimization aims to increase the closed loop efficiency with a clear physical meaning, static aerodynamic performance and MPPT dynamics can be better coordinated and correspondingly higher wind energy production of VSWTs can be achieved. Finally, using the 1.5 MW and 5.0 MW VSWTs developed by National Renewable Energy Laboratory (NREL) as the baseline, the proposed method is verified by simulations with commercial software Bladed and experiment test on a wind turbine testbed.
Modeling of Manufacturing Resources Based on Ontology
Year: 2009

The network modeling of manufacturing resources is analyzed deeply.A combined of method of particle size based on ontology and business oriented needs of internal and external information is proposed.A model based on Web Process Planning is described.Because of the lack of dynamic description of the existing OWL S service model,the OWL S is extended for describing the dynamic characteristics of the service.The paper has an set information model for discoverying and matching the manufacturing resource.
Coffee Marketing Mechanism: Social Relations Between Farmers, Collectors, Certification Cooperatives, and Exporters in Aceh, Indonesia
Venue: Pelita Perkebunan (a Coffee and Cocoa Research Journal)
Year: 2019

Several factors can influence the process of pricing mechanisms, namely competition between market participants, regulation, product quality, and consumer preferences. This is a challenge for Gayo Arabica coffee farmers, where coffee is the main commodity in Central Aceh Regency. This paper aimed to determine the social relations that occur between social actors (farmers, collectors, certification cooperatives and exporters) in the coffee marketing mechanism. This paper used a qualitative research method with a survey approach by conducting interviews with farmers, collectors, certification cooperatives and exporters. The results showed that the marketing of Gayo Arabica coffee involved several layers of actors. The coffee product marketing system can be done through two facilities, namely through export sales and domestic sales. There are differences in the income of coffee farmers in marketing coffee abroad or in the country where farmers benefit more from selling coffee products for exports. Relationship among actors are interdependent and bound. Farmers need collectors as tool providers and coffee price informans. Farmers follow cooperative certificates to get fair and more profitable prices.
Application of universal design in healthcare built environment
Year: 2010

Accessibility to buUt environment are increasing needed due to the increasing number of people surviving to older ages which are adding to the numbers of person with disabilities. The need of frait and firm to elderly persons for accessibJe built environments are similar to those of the group generally describe as persons with disabilities. The main purpose of this research is to audit accessibility of buildjng facilities for the disabled persons~ elderJy and chUdren, at hospitaJ buHdings, and Hospitar Putrajaya has been selected for this research. The methodo'ogy used is based on table research, and simulation on the users of the facilities, observations and photographs. The access audit is carrred out together with students of the fifth year Architecture from Jnternational Islamic University Malaysia and experts of access audit. The findings and recommendations from the study will give insights to the problems faced by the disabled persons, thus enable the owner of the building to upgrade the facUities provided in their building to serve the need of the target group. The recommendation can also be used as guidennes to des;gners, building owners and people who involved in building industry
LINKING BANK COMPETITION, FINANCIAL STABILITY, AND ECONOMIC GROWTH
Year: 2020

This paper investigates the effect of bank competition and financial stability on economic growth by examining panel data from 38 European countries over 2001 to 2017. Bank competition is measured with the Boone indicator, and bank stability with Z scores and non performing loan ratio, all at the country level. This study employs a fixed effect estimator, as well as a system generalized method of moment (GMM) estimator to control unobserved heterogeneity, endogene ity, the dynamic effect of economic growth, and reverse causality in its estimation. Results show that bank stability significantly contributes to economic growth in Europe. Economic growth falls during crisis periods (both the global financial crisis and the local banking crisis) highlighting the importance of a resilient banking system during crisis periods. Moreover, empirical outcomes show that lower banking competition supports economic growth and increases financial stability. This study provides a framework for banks and regulators to boost economic growth through the channel of banking stability.
Hybrid supercapacitors constructed from double shelled cobalt zinc sulfide/copper oxide nanoarrays and ferrous sulfide/graphene oxide nanostructures.
Venue: Journal of colloid and interface science
Year: 2020

Evolution of renewable energies in the era of the modernized world has been strongly tied up to the incessant development of high performance energy storage systems benefiting from both high energy and power densities. In the present work, binder free positive electrodes are fabricated via a facile electrochemical deposition route in which copper oxide nanorods (CuO NRs) directly grown onto the copper foam (CF) are decorated with bimetallic cobalt zinc sulfide nanoarrays (Co Zn S NAs) The fabricated Co Zn S@CuO CFs represent promising specific capacity of 317.03 C.g 1 at 1.76 A.g 1, along with superior cyclic stability (113% retention after 4500 cycles) Negative electrodes were further prepared through a direct deposition of iron sulfide nanosheets (Fe S NSs) onto the graphene oxide (GO) showing remarkable the specific capacitance of 543.9 F.g 1 at 0.79 A.g 1. Receiving benefits from remarkable energy and power densities (25.71 Wh.kg 1 and 8.73 kW.kg 1) alongside the reasonable life stability, the fabricated asymmetric supercapacitor (ASC) devices are on merit for developing high performance energy storage systems.
Clinical, immunological and virological characterization of COVID 19 patients that test re positive for SARS CoV 2 by RT PCR
Venue: medRxiv
Year: 2020

COVID 19 pandemic is underway. Some COVID 19 cases re tested positive for SARS CoV 2 RNA after discharge raising the public concern on their infectivity. Characterization of re positive cases are urgently needed for designing intervention strategies.  Clinical data were obtained through Guangdong COVID 19 surveillance network. Neutralization antibody titre was determined using a microneutralization assay. Potential infectivity of clinical samples was evaluated after the cell inoculation. SARS CoV 2 RNA was detected using three different RT PCR kits and multiplex PCR with nanopore sequencing.  Among 619 discharged COVID 19 cases, 87 were re tested as SARS CoV 2 positive in circumstance of social isolation. All re positive cases had mild or moderate symptoms in initial diagnosis and a younger age distribution (mean, 30.4) Re positive cases (n=59) exhibited similar neutralization antibodies (NAbs) titre distributions to other COVID 19 cases (n=150) parallel tested in this study. No infective viral strain could be obtained by culture and none full length viral genomes could be sequenced for all re positive cases.  Re positive SARS CoV 2 was not caused by the secondary infection and was identified in around 14% of discharged cases. A robust Nabs response and a potential virus genome degradation were detected from nearly all re positive cases suggesting a lower transmission risk, especially through a respiratory route.
Factors Influencing Consumption Experience of Mobile Commerce: a Study from Experiential View
Venue: Internet Res.
Year: 2012

The purpose of this study is to interpret consumers' emotion in their consumption experience in the context of mobile commerce from an experiential view. The study seeks to address concerns about the experiential aspects of mobile commerce regardless of the consumption type. For the purpose, the authors aims to propose a stimulus organism response (S O R) based model that incorporates both utilitarian and hedonic factors of consumers. A survey study was conducted to collect data from 293 mobile phone users. The questionnaire was administered in study classrooms, a library, or via e mail. The measurement model and structural model were examined using LISREL 8.7.Findings The results of this research implied that emotion played a significant role in the mobile consumption experience; hedonic factors had a positive effect on the consumption experience, while utilitarian factors had a negative effect on the consumption experience of consumers. The empirical findings als.
ePAT: a simple method to tag adenylated RNA to measure poly(A) tail length and other 3' RACE applications.
Venue: RNA
Year: 2012

The addition of a poly(A) tail to the 3' termini of RNA molecules influences stability, nuclear export, and efficiency of translation. In the cytoplasm, dynamic changes in the length of the poly(A) tail have long been recognized as reflective of the switch between translational silence and activation. Thus, measurement of the poly(A) tail associated with any given mRNA at steady state can serve as a surrogate readout of its translation state. Here, we describe a simple new method to 3' tag adenylated RNA in total RNA samples using the intrinsic property of Escherichia coli DNA polymerase I to extend an RNA primer using a DNA template. This tag can serve as an anchor for cDNA synthesis and subsequent gene specific PCR to assess poly(A) tail length. We call this method extension Poly(A) Test (ePAT) The ePAT approach is as efficient as traditional Ligation Mediated Poly(A) Test (LM PAT) assays, avoids problems of internal priming associated with oligo dT based methods, and allows for the accurate analysis of both the poly(A) tail length and alternate 3' UTR usage in 3' RACE applications.
Standard of Living Quality of Life Relies on Innovation: Innovation Relies on Engineering Design
Year: 2013

Quality of life has advanced since the industrial revolution and this advancement has accelerated with the information revolution. Life expectancy has increased, catalytic converters protect our air, a disabled athlete runs with the fastest runners in the world 1 and global real GDP per capita has grown by a factor of 2.5 over the past 50 years 2 This quality of life advancement is the result of continuous innovation. In today's global economy, innovation is essential for Canada to compete (even to participate) and to continue advancing our quality of life. Collective global innovation has never been more critical. World population growth (7 billion and counting) diminishing non renewable resources (oil and beyond) and escalating environmental challenges (climate change and pollution) all require global scale innovations or our collective quality of life will not be sustained. Canadians have contributed much to the world including the telephone and smartphone, CANDU (r) reactors, snowmobiles, IMAX (r) and the pacemaker. However, over the last number of years, there have been multiple reports critical of Canada's capacity for technological innovation 3 and studies that offer strategies for improvement. 4 While it is true that innovation is essential to the future of both Canada and the world, innovation is only a means to an end and it is incumbent on us to define the desired ends. Innovation can be a means to a higher quality of life and a more sustainable future for generations to come or it can simply be a means to increase the financial prosperity of the nation. To achieve the ends we value, it is essential to measure innovation in terms of these ends, not in terms of subtle differences in the rate of change in the GDP per capita. Are our innovations leading to cleaner water for all, a healthier and complete diet for all, and meaningful employment for all?
On the Limit of Artificial Intelligence
Year: 2021

This article asks how can we articulate the limit of artificial intelligence, which virtually has no limit? Or maybe the definition of AI already implies its limit, how Marvin Minsky once declared that there is no generally accepted theory of intelligence, and that AI is only one particular way of modelling it. This article revisits the debate between Minsky and Hubert Dreyfus and repositions them in terms of an opposition between mechanism and organism, in order to expose the limit of Dreyfus's Heideggerian critique. It suggests reflecting on the relation between noodiversity and technodiversity to methodologically broaden the concept of intelligence, and on how different concepts of intelligence could be thought by introducing the Chinese philosopher Mou Zongsan's interpretation of Kant's intellectual intuition.
What Bram Stoker's Dracula Reveals about Violence
Year: 2015

In spite of its violent content, few scholars have asked what Dracula reveals about violence. The scholarship is replete with articles cataloguing multiple forms of sexuality: homosexuality, voyeurism, coitus interruptus, sadism, masochism, and necrophilia. Dracula is also a story of competing forms of violence; the titular Count's mythical violence opposes the hunting party's terrestrial violence. This article examines scenes detailing violence against women, men, animals, earth, institutions, monuments, and nations to show how they provide narrative momentum. At the novel's close a contest of natural and unnatural violence is borne out. Dracula's supernatural ability to use violence to immortalize victims is outdone by the ability of natural violence to end life. The narrative, having been propelled to this moment through encounters between the two forms of violence, closes.
Guidelines for Perioperative Care in Elective Colonic Surgery: Enhanced Recovery After Surgery (ERAS(r) Society Recommendations
Venue: World Journal of Surgery
Year: 2012

BackgroundThis review aims to present a consensus for optimal perioperative care in colonic surgery and to provide graded recommendations for items for an evidenced based enhanced perioperative protocol.MethodsStudies were selected with particular attention paid to meta analyses, randomised controlled trials and large prospective cohorts. For each item of the perioperative treatment pathway, available English language literature was examined, reviewed and graded. A consensus recommendation was reached after critical appraisal of the literature by the group.ResultsFor most of the protocol items, recommendations are based on good quality trials or meta analyses of good quality trials (quality of evidence and recommendations according to the GRADE system).ConclusionsBased on the evidence available for each item of the multimodal perioperative care pathway, the Enhanced Recovery After Surgery (ERAS) Society, International Association for Surgical Metabolism and Nutrition (IASMEN) and European Society for Clinical Nutrition and Metabolism (ESPEN) present a comprehensive evidence based consensus review of perioperative care for colonic surgery.
Collective climate action: Determinants of participation intention in community based pro environmental initiatives
Year: 2015

There seems to be consensus that apart from individual behavioral change, system wide transformations are required to address the challenges posed by climate change. Collective action is viewed as one core mechanism in social transformation but there is currently no systematic research on collective climate action. By reviewing theoretical perspectives and models explaining collective protest, we aim to provide a starting point for such a research program. Based on correlational data from a student sample N 652) a sample of participants of a local climate protection initiative N 71) and visitors of a climate protection event N 88) we tested constructs derived from these theoretical models. Social identity, perceived behavioral control, and participative efficacy beliefs consistently predicted substantial amounts of variance in participation intention. Implications for future research are discussed, such as recognizing the interplay between cost benefit calculations and social identity, or temporal dynamics in collective action engagement.