Displacement efficiency is an important index of water drive oilfield. This article takes water drive oilfield as the object to analyze the influence factors of displacement efficiency in limit water cut stage of wate...
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Displacement efficiency is an important index of water drive oilfield. This article takes water drive oilfield as the object to analyze the influence factors of displacement efficiency in limit water cut stage of water drive oilfield. The displacement efficiency experimental data of 99 cores which come from 65 development wells of 34 oilfields have been collected. The authors use the method of multiple linear regression analysis to establish a new empirical formula of displacement efficiency. The relative error of the empirical formula is less than 7% compared to the experimental data.
Citizen science projects aim at promoting scientific research with the help of the public,effectively combining the scientific diffusion with the scientific *** actor network theory emphasizes the principle of general...
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Citizen science projects aim at promoting scientific research with the help of the public,effectively combining the scientific diffusion with the scientific *** actor network theory emphasizes the principle of generalized symmetry which insists that both non-human actors and human actors are important.
Language and culture have been mutually dependent through their history. The moral principle—honesty and integrity isone of the most significant categories of human's *** author does a literary review of the rela...
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Language and culture have been mutually dependent through their history. The moral principle—honesty and integrity isone of the most significant categories of human's *** author does a literary review of the relationship between language andculture. Then she makes an analysis of an empirical study on Chinese and Western concepts of"honesty and integrity".In light ofthe empirical study, the author has found that Chinese mainly come into contact with the idea of"honesty and integrity"from theirparents, while the Westerners learn this concept mostly from school education.
A new noise reduction method based on ensemble empirical mode decomposition(EEMD) is proposed to improve the detection effect for fluorescence spectra. Polycyclic aromatic hydrocarbons(PAHs) pollutants, as a kind of i...
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A new noise reduction method based on ensemble empirical mode decomposition(EEMD) is proposed to improve the detection effect for fluorescence spectra. Polycyclic aromatic hydrocarbons(PAHs) pollutants, as a kind of important current environmental pollution source, are highly oncogenic. Using the fluorescence spectroscopy method, the PAHs pollutants can be detected. However, instrument will produce noise in the experiment. Weak fluorescent signals can be affected by noise, so we propose a way to denoise and improve the detection effect. Firstly, we use fluorescence spectrometer to detect PAHs to obtain fluorescence spectra. Subsequently, noises are reduced by EEMD algorithm. Finally, the experiment results show the proposed method is feasible.
A prospective study conducted in a Thai general practice clinic demonstrated a high prevalence (91.3%) of inappropriate empirical antibiotic use in women with uncomplicated cystitis and 42.6% Escherichia coli fluoroqu...
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A prospective study conducted in a Thai general practice clinic demonstrated a high prevalence (91.3%) of inappropriate empirical antibiotic use in women with uncomplicated cystitis and 42.6% Escherichia coli fluoroquinolone resistance. An annual update of antimicrobial resistance surveillance data of uropathogens may permit targeted treatment of patients in hospital care.
This article shows that Husserl's phenomenology aims to realize the original idea of philosophy as science of absolute and ultimate foundation. In enlightened terms, its ultimate goal has a practical-existential n...
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This article shows that Husserl's phenomenology aims to realize the original idea of philosophy as science of absolute and ultimate foundation. In enlightened terms, its ultimate goal has a practical-existential nature: to constitute a rational human existence. The basis of this philosophy as rigorous a science lies in the original experience of consciousness. Husserl locates the transcendental in the empirical. Our thesis is that Husserl gives unnecessarily to the phenomenology a transcendentalist orientation. Instead of returning to the life-world, Husserl remains in the transcendental subjectivity an absolute entity. But this transcendentalism questions the possibility to achieve that enlightened ideal.
In recent years, 'post-qualitative new empiricist' research has been gaining ground. Such work questions the humanist ontological and epistemological orientation of much mainstream qualitative inquiry and insi...
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In recent years, 'post-qualitative new empiricist' research has been gaining ground. Such work questions the humanist ontological and epistemological orientation of much mainstream qualitative inquiry and insists on the need to take into account the more-and-other-than-human. Post-qualitative research draws on an eclectic range of theories as a means to reformulate the methodological assumptions on which humanist research rests. In doing so, it problematizes key aspects of the research process - the objects of inquiry, methods used to produce 'data', what 'data' is, coding as a practice of meaning-making, and the formal conventions of academic article writing for journal publication. Given the relative unfamiliarity of post-qualitative inquiry, this article provides an introduction to its methodological and theoretical terrain. The article has three aims: first, to provide an overview of post-qualitative new empiricisms and outline its five key foci;second, to put to work three theoretical approaches - Jane Bennett's 'thing-power', Graham Harman's object-oriented ontology and Karen Barad's agential realism - via a specific example, as a means to formulate some empirical starting points for post-qualitative work in higher education;and third, to assess the promise of post-qualitative inquiry in rethinking the empirical more broadly.
Change proneness is a characteristic of software artifacts that represents their probability to change in future. Change proneness can be assessed at different levels of granularity, ranging from classes to modules. A...
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ISBN:
(纸本)9781538626498
Change proneness is a characteristic of software artifacts that represents their probability to change in future. Change proneness can be assessed at different levels of granularity, ranging from classes to modules. Although change proneness can be successfully assessed at the source code level (i.e., methods and classes), it remains rather unexplored for architectures. Additionally, the methods that have been introduced at the source code level are not directly transferrable to the architecture level. In this paper, we propose and empirically validate a method for assessing the change proneness of architectural modules. Assessing change proneness at the level of architectural modules requires information from two sources: (a) the history of changes in the module, as a proxy of how frequently the module itself undergoes changes;and (b) the dependencies with other modules that affect the probability of a change being propagated from one module to the other. To validate the proposed approach, we performed a case study on five open-source projects. Specifically, we compared the accuracy of the proposed approach to the use of software package metrics as assessors of modules change proneness, based on the 1061-1998 IEEE Standard. The results suggest that compared to examined metrics, the proposed method is a better assessor of change proneness. Therefore, we believe that the method and accompanying tool can effectively aid architects during software maintenance and evolution.
A distributed software product engineering team has to deal with the additional issue of distribution apart from the usual expectations around cost, quality, time to market and innovation. Distribution of work brings ...
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ISBN:
(纸本)9781509063673
A distributed software product engineering team has to deal with the additional issue of distribution apart from the usual expectations around cost, quality, time to market and innovation. Distribution of work brings in the issues of temporal, geographical and cultural separation. In spite of individually following the prescribed software engineering processes, often the distributed teams fail to act as a single product team. It is also a well accepted truth that misaligned distributed teams rarely produce satisfactory outcome. The short life cycle for Internet based products adds to these challenges. As a result, global software product engineering is still somewhat immature. In this paper we describe an empirical study to diagnose, detect and cure the health issues in a distributed software product engineering program. This consists of steps such as problem identification, research review, study design, validity consideration, data analysis and conclusion. The key hypothesis in this approach is the assumption that most distributed software product engineering teams in the same organization require alignment rather than bottom up retooling in the form of an elaborate software engineering initiative and this alignment can be achieved in a fast and effective manner by aligning the key interface leaders. By focusing first on causes of misalignment between different parts of distributed team, the root causes behind lack of satisfactory outcome can be quickly surfaced. This top down method is a departure from the usual bottom up approach of starting from process adherence. This approach allows the distributed teams to retain their cultural idiosyncrasies that are hard to remove. This paper shares the experience from such an initiative undertaken in an Internet based product company doing software product engineering across India and USA.
Among the universal attributes of homo sapiens, several have become established as special fields of study-language, art and music, religion, and political economy. But mathematics, another universal attribute of our ...
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Among the universal attributes of homo sapiens, several have become established as special fields of study-language, art and music, religion, and political economy. But mathematics, another universal attribute of our species, is still modeled separately by logicians, historians, neuroscientists, and others. Could it be integrated into "mathematics studies,'' a coherent, many-faceted branch of empirical science? Could philosophers facilitate such a unification? Some philosophers of mathematics identify themselves with "positions'' on the nature of mathematics. Those "positions'' could more productively serve as models of mathematics.
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