nils-herrmann/clean_scirepeval huggingface dataset:
Fabricating and Assembling Acoustic Metamaterials and Phononic Crystals
Year: 2020

Acoustic metamaterials (AMMs) and phononic crystals (PCs) have garnered significant attention in recent years, as part of the collective driving force toward creating intelligent acoustic devices. Advancements in these fields have greatly enhanced the way we manipulate sound waves through transmission, reflection, refraction, absorption, diffraction, or attenuation. In the past decade, AMMs and PCs have enabled novel applications such as acoustic lensing, cloaking, levitation, and holography. While these exotic structures have been well explored through theoretical and numerical analysis, their physical realization is an important topic that is rarely discussed. Considering the ubiquity of sound and the powerful capabilities of AMMs and PCs, the impact of these acoustic structures could be phenomenal. Across the full acoustic frequency spectrum, practical applications such as noise cancellation, underwater detection, medical imaging, and energy harvesting could benefit key sectors in our society like healthcare, well being, environmental sustainability, and security. Moreover, AMMs and PCs can help to usher in next generation technologies for personalized, immersive multisensory experiences. The manipulation of sound can enrich the way we communicate and interact with our surroundings, not simply through audio, but also through tactile sensations. In the future, AMMs and PCs could be used in virtual reality (VR) setups, compact wearable devices, and dynamic midair volumetric displays that are controllable and capable of providing haptic feedback. Beyond the notion that AMMs and PCs can replace phased arrays, they could readily complement one another for more precise control. In commercial devices, AMM and PC functionalities could even be combined together in different ways, e.g. transmissive and sound absorptive structures, for improved performance. To unlock the full potential of AMMs and PCs, it is therefore vital to ensure that practical, physical realization is pursued alongside theoretical investigation in the development of viable acoustic designs. Building an AMM or PC requires some form of fabrication or assembly or both. Fabrication refers to the technologies and processes used to manufacture an object, whereas assembly refers to the strategic amalgamation of parts for a constructive purpose. AMMs and PCs can also be assembly free, i.e. the complete C. Choi, Dr. S. Bansal, Prof. S. Subramanian Department of Computer Science Faculty of Engineering University College London London WC1E 6BT, UK E mail: shubhi.bansal@ucl.ac.uk; s.subramanian@ucl.ac.uk Prof. N. Munzenrieder Faculty of Science and Technology Free University of Bozen Bolzano Bozen 39100, Italy
Information theoretic approach for accounting classification
Year: 2014

In this paper we consider an information theoretic approach for the accounting classification process. We propose a matrix formalism and an algorithm for calculations of information theoretic measures associated to accounting classification. The formalism may be useful for further generalizations and computer based implementation. Information theoretic measures, mutual information and symmetric uncertainty, were evaluated for daily transactions recorded in the chart of accounts of a small company during two years. Variation in the information measures due the aggregation of data in the process of accounting classification is observed. In particular, the symmetric uncertainty seems to be a useful parameter for comparing companies over time or in different sectors or different accounting choices and standards.
Creature Symbols to Foreshadow Harry's Confrontation with his Past in J.K. Rowling's Harry Potter and the Prisoner of Askaban
Year: 2017

Symbol is a major element in literary works. It always has a meaning which is different than the literal meaning of the symbol itself, and thus, it is prevalent in literary works which often contain hidden meanings. Foreshadowing on the other hand, is the act of vaguely hinting the readers to the future event in the story or even the outcome of said story. This study discusses the creature symbols presented in J.K. Rowling's Harry Potter and the Prisoner of Azkaban as foreshadowing element that hints towards the confrontation between Harry and his past in the conflict of the novel. There are three creature symbols found in the novel: The black dog, the rat Scabbers, and the dementors of Azkaban. The black dog reflects Sirius' loyalty to his friends and its black fur symbolizes the sorrow and mourning he felt for their death, but its resemblance with the Grim stands for his vengeful obsession to Peter Pettigrew whom had betrayed him and the Potters. The rat Scabbers on the other hand, symbolizes betrayal, cowardice, and cunning trickery, traits that can be found in Peter Pettigrew. The dementors meanwhile, symbolizes hopeless misery and despair known as depression. These guardians of Azkaban foreshadowed that the conflict would be a confrontation between Harry and his past while the black dog and rat revealed the truth behind said past regarding who betrayed the Potters twelve years ago and the innocent man whom said crime was blamed upon.  symbols, foreshadow, J.K. Rowling
Parallel Compact Hash Algorithms for Computational Meshes
Venue: SIAM J. Sci. Comput.
Year: 2015

We employ compact hashing and the discrete properties of computational meshes to optimize spatial operations in scientific computing applications. Our target is to develop highly parallel compact hashing methods suitable for the fine grained parallelism of GPU and MIC architectures that will scale to the next generation of computing systems. As a model, we apply spatial hashing methods to the problem of determining neighbor elements in adaptive mesh refinement (AMR) schemes. By applying memory savings techniques, we extend the perfect spatial hash algorithm to a compact hash by compressing the resulting sparse data structures. Using compact hashing and specific memory optimizations, we increase the range of problems that can benefit from our ideal $O(n) algorithms. The spatial hash methods are tested and compared across a variety of architectures on both a randomly generated sample mesh and an existing cell based AMR shallow water hydrodynamics scheme. We demonstrate consistent speed up and increased per.
The role of relationship quality and loyalty program in tourism shopping: a multilevel investigation
Year: 2020

This study draws on the relationship quality research domain and the social exchange theory to propose a multilevel model leading from shopping motive to patronage behaviors, such as word of mouth and share of wallet, through a relationship quality process leading from satisfaction and trust to emotional commitment and cooperation. A cross level moderation of store loyalty program benefit is also tested. Using a sample from mainland Chinese shoppers, results reveal that while relationship quality mediates tourist motives and patronage behaviors, store level membership programs serve as a boundary condition that moderates the relationship quality process.
Good features to track: A view geometric approach
Venue: 2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops)
Year: 2011

Despite many alternatives to point tracking problem, iterative least squares solution solving the optical flow constraint has been the most popular approach used by many in the field. This paper attempts to leverage the former efforts to enhance such tracking methods by introducing geometric constraint to the tracking problem. In contrast to alternative geometry based methods, the proposed approach provides an online solution to optical flow estimation by exploiting Horn and Schunck flow estimation regularized by view geometric constraints. We particularly use the geometric invariants in the projective coordinates and conjecture that the traditional appearance solution needs to be geometrically regularized. Geometric regularization is achieved by estimating the posterior distribution of possible locations given the samples drawn from other tracked points which specify the scene geometry. Our experiments demonstrate that tracking can still be performed with great accuracy even when the features undergo appearance changes due to projective deformation of the template. Hence the resulting algorithm judges the quality of the tracked points based on not only appearance similarity but also geometric consistency.
Perancangan dan Pengujian Load Balancing dan Failover Menggunakan NginX
Year: 2017

Situs web dengan traffic yang tinggi dapat menyebabkan beban kerja yang berat di sisi server, yang pada gilirannya akan mengakibatkan turunnya kinerja server, bahkan kegagalan sistem secara keseluruhan. Salah satu solusi untuk mengatasi masalah tersebut adalah dengan menerapkan teknik load balancing dan failover Load balancing merupakan teknologi untuk melakukan pembagian beban kepada beberapa server, memastikan tidak terjadi kelebihan beban pada salah satu server. Sementara itu, failover merupakan kemampuan suatu sistem untuk berpindah ke sistem cadangan jika sistem utama mengalami kegagalan. Dalam penelitian ini load balancing dengan teknik failover akan diimplementasikan pada sistem operasi Ubuntu. Software inti yang digunakan dalam penelitian ini adalah Nginx dan KeepAlived. Nginx akan berfungsi sebagai load balancer sedangkan KeepAlived untuk mengimplementasikan teknik failover. Beberapa skenario telah disiapkan untuk menguji sistem load balancing yang telah dirancang. Pengujian dilakukan dengan menggunakan perangkat lunak JMeter. Berdasarkan pengujian yang telah dilakukan, sistem yang dirancang berhasil membagikan beban permintaan dan dapat terus bekerja walaupun terjadi kegagalan pada server load balancer ataupun kegagalan pada server backend. Selain itu, dalam beberapa pengujian, penggunaan load balancing terbukti mampu menurunkan waktu respon dan meningkatkan thoughput pada sistem sehingga mampu meningkatkan performa keseluruhan sistem. Mengacu pada hasil penelitian ini, sistem load balancing dan failover menggunakan Nginx dapat dijadikan salah satu solusi pada sistem web server dengan situs web yang memiliki traffic tinggi.
Vitamin E therapy beyond cancer: Tocopherol versus tocotrienol.
Venue: Pharmacology therapeutics
Year: 2016

The discovery of vitamin E (a tocopherol) began in 1922 as a vital component required in reproduction. Today, there are eight naturally occurring vitamin E isoforms, namely a b g and d tocopherol and a b g and d tocotrienol. Vitamin E is potent antioxidants, capable of neutralizing free radicals directly by donating hydrogen from its chromanol ring. a Tocopherol is regarded the dominant form in vitamin E as the a tocopherol transfer protein in the liver binds mainly a tocopherol, thus preventing its degradation. That contributed to the oversight of tocotrienols and resulted in less than 3% of all vitamin E publications studying tocotrienols. Nevertheless, tocotrienols have been shown to possess superior antioxidant and anti inflammatory properties over a tocopherol. In particular, inhibition of 3 hydroxy 3 methylglutaryl coenzyme A reductase to lower cholesterol, attenuating inflammation via downregulation of transcription factor NF kB activation, and potent radioprotectant against radiation damage are some properties unique to tocotrienols, not tocopherols. Aside from cancer, vitamin E has also been shown protective in bone, cardiovascular, eye, nephrological and neurological diseases. In light of the different pharmacological properties of tocopherols and tocotrienols, it becomes critical to specify which vitamin E isoform(s) are being studied in any future vitamin E publications. This review provides an update on vitamin E therapeutic potentials, protective effects and modes of action beyond cancer, with comparison of tocopherols against tocotrienols. With the concerted efforts in synthesizing novel vitamin E analogs and clinical pharmacology of vitamin E, it is likely that certain vitamin E isoform(s) will be therapeutic agents against human diseases besides cancer.
Numerical simulation of ultrasonic heat meter by multiphysics coupling finite element simulation software
Year: 2020

To increase heat calculation accuracy, the numerical simulation of the ultrasonic heat meter is explored by multiphysics coupling.  The COMSOL, a multiphysics coupling finite element simulation software, is used to build the coupling model of the sound field, structure field, and electric field. The propagation of ultrasonic waves in heat meters is simulated, and its sound field distribution in pure water is analyzed. According to the operating conditions of ultrasonic heat meters, the influence of impurities with different concentrations on ultrasonic propagation is analyzed. The end face sound pressure levels of the incident transducer and the receiving transducer are compared to obtain the attenuation laws of ultrasonic waves in the liquid solid two phase flow.  The main lobe and multiple side lobes exist during the propagation of ultrasonic waves. The energy of the main lobe is higher than that of the side lobes. Bubbles resonate under the action of the sound field. Also, bubbles of different diameters correspond to different resonance frequencies, which have larger sound pressure than that of the incident sound field. Most of the sound waves are reflected at the liquid solid interface, while some of them continue to propagate through the media, affecting the sound pressure distribution on the end face of the receiving transducer, thereby affecting the measurement accuracy of the ultrasonic heat meter.  The reliability and detection efficiency of the heat meter is improved, which is significant and theoretically valuable.
Two modes of dative and genitive case assignment: Evidence from two stages of Greek
Year: 2020

In this paper, we compare the properties of dative and genitive objects in Classical vs. Modern Greek. Based on the difference in behavior of dative/genitive objects of ditransitives and monadic transitives in the two periods of Greek which correlates with a range of systematic alternations in the case realization of Modern Greek IO arguments depending on the presence and category (DP vs. PP) of lower theme arguments, we argue that there are two distinct modes of dative and genitive objective case assignment: they are either prepositional or dependent (structural) cases, as also proposed by Baker and Vinokurova 2010 and Baker 2015 on the basis of cross linguistic evidence. If we adopt this proposal a number of important implications follow both for the syntax of Modern Greek genitive indirect objects and for the understanding of the change from Classical to Standard Modern Greek which must be seen as a development from a grammatical system where dative and genitive were lexical/inherent/prepositional cases to a system where genitive is a dependent case assigned to DPs in the sense of Marantz 1991 Interestingly, the development from Classical Greek (CG) to Modern Greek (MG) affected the availability of dative/genitive nominative alternations in passivization, in the opposite direction of what might be expected, i.e. such alternations were possible in CG and are no longer possible in MG. Our paper addresses this puzzle and argues that the availability of such alternations is not always a diagnostic tool for detecting whether an indirect object DP bears lexically specified or structural/dependent Case, contra standard practice in the literature.
Utility maximisation for resource allocation of migrating enterprise applications into the cloud
Venue: Enterp. Inf. Syst.
Year: 2021

Cloud computing has attracted many enterprises to migrate or deploy their applications into the cloud platform so as to reduce their operational costs. In this paper, we investigate the reasonable resource allocation for migrating enterprise applications to the cloud. We first formulate a generalisation form of utility maximisation model for resource allocation of enterprise applications migration. The generalisation form optimisation problem is difficult to resolve due to its non strict convexity and non separation. We apply the successive approximation method to study the generalisation form model and present a gradient based resource allocation scheme to solve the approximation problems. Then, we analyse its performance through mathematical method and also illustrate with some numerical examples.
Politica monetaria, inflacao e crescimento economico: a influencia da reputacao da autoridade monetaria sobre a economia
Year: 2009

Monetary policy, inflation and economic growth: the influence of the monetary authority?s reputation upon the economy The following paper aims to show that, although a monetary policy, which merely seeks to control inflation through an interest rate rule (under inflation targeting) may reach such a goal, it will present a worst outcome whether compared to a monetary policy which also seeks an output target. The proposed model highlights: the role of expectations, the role of monetary policy through its reaction function in the light of non neutrality of money hypothesis and, the influence of monetary authority reputation on the economy.
PRODUKSI DAN PENGELOLAAN KONTEN NEW MEDIA BERBASISCYBER PR DAN DI ROYAL AMBARRUKMO YOGYAKARTA(Analisis Deskriptif Kualitatif Produksi dan Pengelolaan Konten NewMedia pada Website dan Instagram Berbasis Cyber PR di RoyalAmbarrukmo Yogyakarta periode April Juni 2019
Year: 2019

Praktisi public relations adalah yang bertugas dalam memproduksi dan mengelola konten new media yang berbasis cyber PR. Produksi konten sangat erat kaitannya dengan publisitas. Publisitas dilakukan setelah melakukan produksi konten. Melakukan publisitas dengan menggunakan new media yang populer saat ini yaitu website dan instagram. Bagaimana proses produksi dan pengelolaan konten new media berbasis cyber PR di Royal Ambarrukmo Yogyakarta? Pertanyaan tersebut menjadi dasar dalam tulisan ini. Penelitian ini menggunakan metode deskriptif kualitatif, dengan pengumpulan data menggunakan metode wawancara, observasi dan dokumentasi. Teori yang digunakan untuk membentuk kerangka berfikir serta landasan dalam penelitian ini adalah teori Cyber Public Relations. Hasil penelitian ini menunjukan proses produksi konten cyber PR terdiri dari tiga tahapan yaitu praproduksi, produksi dan pasca produksi. berfokus kepada konten visual dan copy writing. Serta dalam memproduksi konten terlebih dahulu harus mengetahui tujuan atau objek yang diinginkan, dan menyesuaikan media dengan sasaran khalayak yang akan dituju. Yang kemudian akan dipublis melalui website dan instagram. Website digunakan untuk menyebarkan informasi secara lengkap mengenai Royal Ambarrukmo Yogyakarta, mulai dari sejarah, produk produk Royal Ambarrukmo, serta fasilitas fasilitas sudah tertera pada website, sedangkan instagram bertujuan untuk menjadi galeri dari kegiatan yang dilaksakan di Royal Ambarrukmo Yogyakarta yang bertujuan untuk menarik motivasi publiknya. Dalam pengelolaan konten terdapat beberapa tahapan yaitu konten, kemudahan akses, pengelolaan comment, up date dan pengelolaan live chat. Kata kunci Produksi Pesan Cyber PR, Pengelolaan konten new media, Public Relations
The Impact of Corporate Investment Behaviour on the Corporate Performance: Evidence from an Emerging Market
Year: 2019

Decision making in investment often includes conflicts in information and subjective judgment of the investors and managers behaviours. The main purpose of this paper is to investigate the Impact of corporate investment behaviour on the corporate performance. Using model for corporate investment herding behaviour, this study explore the presence of managers' investment herding bias at corporate level, and its ultimate impact on corporate performance. The study employs the micro level data of 500 listed firms of Pakistan stock exchange from period of 2010 to 2015. Empirical analysis shows that managers' herding behaviour positively and significantly affect the corporate performance. The results are robust under exogenous shocks on corporate performance. Thus, the study offers useful policy implication to the corporate stakeholders to device the policies accordingly.
Study of energy response and resolution of the ATLAS barrel calorimeter to hadrons of energies from 20 to 350 GeV
Year: 2010

A fully instrumented slice of the ATLAS detector was exposed to test beams from the SPS (Super Proton Synchrotron) at CERN in 2004. In this paper, the results of the measurements of the response of the barrel calorimeter to hadrons with energies in the range 20 to 350 GeV and beam impact points and angles corresponding to pseudorapidity values in the range 0.2 0.65 are reported. The results are compared to the predictions of a simulation program using the Geant 4 toolkit.
Pengaruh Pemberian Kompos Sampah Kota dan Pupuk NPK terhadap Pertumbuhan dan Hasil Tanaman Brokoli (Brassica oleracea L. var. Italica)
Year: 2020

Tanaman Brokoli Brassica oleracea var Italica) memiliki nilai komersial tinggi dan banyak digemari oleh masyarakat Indonesia sehingga permintaan terhadap brokoli juga semakin meningkat. Hal tersebut juga akan berpengaruh terhadap pemenuhan gizi dengan berbagai sayuran yang lebih variatif. Peningkatan yang dilakukan tidak hanya dengan penggunaan varietas unggul saja, tetapi juga memperhatikan pemberian pupuk yang tepat. Salah satunya dengan menggunakan pupuk organik kompos sampah kota dan pupuk anorganik NPK. Penggunaan pupuk sampah kota, selain dapat dijadikan sebagai pupuk untuk menutrisi tanaman, juga dapat mengurangi limbah yang dihasilkan dari sampah rumah tangga. Selain itu pemberian imbangan pupuk organik dan pupuk anorganik, mampu meningkatkan kesuburan tanah dan produksi tanaman. Penelitian dilaksanakan pada bulan Juli sampai September 2019. Penelitian dilaksanakan di Desa Sumberejo, Kecamatan Batu, Kota Batu. Metode yang digunakan dalam penelitian ini ialah dengan menggunakan Rancangan Acak Kelompok (RAK) dengan 9 perlakuan dan diulang sebanyak 3 kali.Hasil penelitian menunjukkan bahwa perlakuan pemberian pupuk kompos sampah kota dengan pupuk NPK dengan memberikan pengaruh nyata parameter pertumbuhan dan hasil yaitu tinggi tanaman, jumlah daun, luas daun, bobot segar brokoli, bobot kering brokoli dan diameter bunga brokoli. Perlakuan 20 t ha 1 kompos sampah kota 800 kg ha 1 NPK (P9) memiliki rerata yang lebih tinggi dibandingkan dengan perlakuan lainnya.
Electrochemical Performance of La0.6Sr0.4Co0.2Fe0.8O3 d Cathode Material Prepared by a Sol gel Method Assisted with Functionalized Carbon Nanotubes
Year: 2020

A promising perovskite type oxide ceramics of La0.6Sr0.4Co0.2Fe0.8O3 d (LSCF) cathode co join with BaCe0.56Zr0.34Y0.1O3 d (BCZY) as supported electrolyte for proton conducting fuel cell (PCFC) was investigated. The ultrafine LSCF was synthesized via a sol gel process assisted with functionalized carbon nanotubes (f CNTs) which served as a dispersing agent (denoted as modified LSCF) The cathode ink of modified LSCF was prepared by mixing cathode powder with binder that made up of ethyl cellulose and terpeniol. The cathode slurry was then deposited on both surface of the BCZY electrolyte via a spin coating technique to become a symmetrical half cell. The half cell of modified LSCF|BCZY|modified LSCF was subjected to Electrochemical Impedance Spectroscopy (EIS) and Scanning Electron Microscope/Energy Dispersive X ray (SEM/EDX) The EIS data revealed the electrochemical reaction of the cell was a thermally activated process that follow the Arrhenius Law. LSCF incorporated with f CNTs was effectively decreased the ASR value to 0.22 Ocm2 at 700oC, compared to 0.31 Ocm2 using pristine LSCF. The pellet after EIS measurement showed no sign of crack and delamination at cathode/ electrolyte interfaces, with optimum porosity obtained using ImageJ software and its elemental composition still preserved as observed by SEM/EDX analyses. Thus, the LSCF assisted with f CNTs has a good potential to improve the quality of the cathode for high performance PCFC that operated at intermediate temperature.