89 research outputs found
Effect of mulch materials on potato production and soil properties in high hill of Parbat, Gandaki Province, Nepal
Get PDFAn experiment for two consecutive years (2017 and 2018) was conducted to evaluate the use of mulching materials in increasing productivity and profitability of potato production. The experiment was conducted in Randomized Complete Block Design (RCBD) with five different mulching materials including control replicated for four times namely, banmara (Agertina adenophora) weed (T1), black polythene sheet (T2), white polythene sheet (T3), commercially used mulch paper having black color outside and silver color inside (T4) and farmers practice (T5) as a control with no mulch. The research result revealed that all the mulching materials significantly (p value ≤ 0.05) increased tuber yield and yield attributing characters of potato as compared with control (no mulch). The highest tuber yield was obtained from mulching with commercial mulch paper followed by mulching with black polythene sheet in both years. Mulching with banmara also produced significantly (p value ≤ 0.01) higher tuber yield than no mulch plot in the year 2017 and 2018. Mulching practices significantly (p value ≤ 0.05) improved the soil available phosphorus. The incremental benefit cost ratio was highest (2.97) in the mulched with banmara followed by commercial mulch paper (2.12). The banmara mulch was also profitable with comparatively higher tuber yield
Effect of Different Concentrations of Potassium Metabisulphite and Bavistin on Postharvest Life of Litchi (Litchi chinensis Sonn var. Muzaffarpur)
Get PDFLitchi (Litchi chinensis Sonn var. Muzaffarpur) is cultivated in 57 districts of Nepal. However, proper post-harvest loss reduction activities are lacking, resulting in significant losses every year. In June 2023, an experiment on Litchi post-harvest was conducted at HRS, Malepatan. The Litchi fruits were uniformly mature and treated with varying concentrations of potassium metabisulfite (50, 75, 100, and 125 ppm) and Bavistin at 100 ppm. They were then stored at ambient conditions (29±4°C and RH 75±5%) for 10 days. The following parameters were recorded: physiological loss in weight (PLW), decay loss, total soluble solids (TSS), titratable acidity (TA), ascorbic acid content (Vit-C), and fruit weight to juice ratio. The fruit that was treated with 50 ppm of potassium metabisulphite recorded the lowest PLW at 20.12%. The fruit treated with 125 ppm of potassium metabisulphite had a minimum decay loss of 23.08%. The control treatment had the highest TSS at 23.65% with a minimum TA of 0.50%. The fruit treated with 100 and 125 ppm of potassium metabisulphite had the maximum ascorbic acid content at 87 mg and 85 mg, respectively, and the highest fruit weight-to-juice ratio at -2.80 and 2.73, respectively. Therefore, this study concludes that applying potassium metabisulfite at a concentration of 100-125 ppm is suitable for postharvest treatment of Litchi fruit to prolong its shelf life and maintain its quality parameters
Recent advances in the use of acoustics across the frequency spectrum in the oil and gas industry
No full textOrchestration and governance in digital platform ecosystems: a literature review and trends
No full textPurpose: Because of the attention increasingly being focused on digital transformation, interest in business models of platform-enabled ecosystems is rising rapidly. Although there are different theoretical views on the role of ecosystems, a synthesis of research, with a focus on governance and orchestration in dynamic, multi-industry eco-systems, is lacking. Design/methodology/approach: A systematic literature review was conducted by following a rigorous search protocol in the scholarly databases covering both journal articles and conference papers These papers were subsequently filtered, and finally, 48 relevant papers were selected for analysis. Findings: The review identifies five key aspects of platform governance design that need close consideration: the meta-organisation or ecosystem design, coordination mechanisms, mechanisms for value co-creation, value appropriation mechanisms and architectural principles. To achieve balance among a set of competing demands, platform leaders need to devote adequate attention to these aspects. Practical implications: Based on a literature review, the authors provide an overview of underlying theoretical views, research methods and key trends to develop a sound theoretical grounding for research on platform governance design. The paper also suggests research gaps in the existing literature and sets directions for researchers to strengthen the understanding of effective platform governance design. The paper also provides valuable information to managers in developing or leading a successful platform ecosystem. Originality/value: The paper uses existing literature published in this topic and original in nature.</p
The Theme of Betrayal in Tagore’s Home and The World
Get PDFRabindranath Tagore was a prolific author who earned name and fame worldwide for his contribution in literature. Tagore depicts the different shades of man’s life through the characters of his novels. Tagore touches the different issues like : the struggle for freedom, the existence of good and evil of the world. Tagore’s The Home and the World deals with the theme of betrayal and the relationship of husband and wife and how the wife realizes her mistake at the end of the novel This paper is a sincere effort to display how the betrayal of Bimala effects Nikhil’s life and how she is deceived by her idol Sandip
An approach based on Hierarchical Bayesian Graphical Models for measurement interpretation under uncertainty
Get PDFIt is not uncommon in the field of non-destructive evaluation that multiple measurements encompassing a variety of modalities are available for analysis and interpretation for determining the underlying states of nature of the materials or parts being tested. Despite and sometimes due to the richness of data, significant challenges arise in the interpretation manifested as ambiguities and inconsistencies due to various uncertain factors in the physical properties (inputs), environment, measurement device properties, human errors, and the measurement data (outputs). Most of these uncertainties cannot be described by any rigorous mathematical means, and modeling of all possibilities is usually infeasible for many real time applications.In this work, we will discuss an approach based on Hierarchical Bayesian Graphical Models (HBGM) for the improved interpretation of complex (multi-dimensional) problems with parametric uncertainties that lack usable physical models. In this setting, the input space of the physical properties is specified through prior distributions based on domain knowledge and expertise, which are represented as Gaussian mixtures to model the various possible scenarios of interest for non-destructive testing applications. Forward models are then used offline to generate the expected distribution of the proposed measurements which are used to train a hierarchical Bayesian network. In Bayesian analysis, all model parameters are treated as random variables, and inference of the parameters is made on the basis of posterior distribution given the observed data. Learned parameters of the posterior distribution obtained after the training can therefore be used to build an efficient classifier for differentiating new observed data in real time on the basis of pre-trained models. We will illustrate the implementation of the HBGM approach to ultrasonic measurements used for cement evaluation of cased wells in the oil industry.</p
An open platform centric approach for scalable government service delivery to the poor: The Aadhaar case
No full textThe efficient delivery of government services to the poor, or Bottom of the Pyramid (BOP), faces many challenges. While a core problem is the lack of scalability, that could be solved by the rapid proliferation of platforms and associated ecosystems. Existing research involving platforms focus on modularity, openness, ecosystem leadership and governance, as well as on their impact on innovation, scale and agility. However, existing studies fail to explore the role of platform in scalable e-government services delivery on an empirical level. Based on an in-depth case study of the world's largest biometric identity platform, used by millions of the poor in India, we develop a set of propositions connecting the attributes of a digital platform ecosystem to different indicators for the scalability of government service delivery. We found that modular architecture, combined with limited functionality in core modules, and open standards combined with controlled access and ecosystem governance enabled by keystone behaviour, have a positive impact on scalability. The research provides insights to policy-makers and government officials alike, particularly those in nations struggling to provide basic services to poor and marginalised. This is also one of the few studies to apply platform theory empirically to the e-government domain.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Information and Communication Technolog
Impact of Time-dependent Annealing on TiO2 Films for CMOS application
No full textPost-deposition annealing (PDA) is the inherent part of sol-gel fabrication process to achieve the optimum device performance, especially in CMOS applications. The annealing removes the oxygen vacancies and improves the structural order of dielectric films. The process also reduces the interface related defects and improves the interfacial properties. In this work, we have integrated the sol-gel spin-coating deposited high-TiO2 films in MOS. The films are fired at 400 degrees C for the duration of 20, 40, 60 and 80 min. The thicknesses of the films were found to be of similar to 30 nm using ellipsometry. The (Al/TiO2/p-Si) devices were examined with current-voltage (I-V) and capacitance-voltage (C-V) at room temperature to understand the influence of firing time. The C-V and I-V characteristic showed a significant dependence on annealing time such as variation in dielectric constant and leakage current. The accumulation capacitance (Cox), dielectric constant (kappa) and the equivalent oxide thickness (EOT) of the film fired for 60 min were found to be 458 pF, 33, and 4.25nm, respectively with a low leakage current density (1.09 10(-6) A/cm(2)) fired for 80 min at + 1 V
Book Review: Fundamentals of Operative Surgery, 2nd edition
No full textBook Title: Fundamentals of Operative SurgeryBook Author: Vipul YagnikPublisher: Wolters Kluwer, Year 2019, 435 pages Format: PDF and EPUB, Hardcover ISBN 9789387506817
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