76 research outputs found
Penerapan Data Mining untuk Memprediksi Jumlah Produk Terlaris Menggunakan Algoritma Naive Bayes Studi Kasus (Toko Prapti)
No full textToko Prapti is a small privately owned company that sells basic necessities,. So far, the prapti shop produces sales data every day, but the results obtained show that the prapti shop has not maximized the data so that it becomes a data accumulation. Therefore, the researcher conducted a study on product sales data by utilizing and applying data mining using the nave Bayes classifier algorithm to determine the interest in purchasing goods at the prapti shop. data. In this study, the author uses the waterfall system development method. The author implements this research using a web programming language, namely PHP, using the CodeIgniter framework with MySQl database. The system built with the nave Bayes algorithm includes product sales data, nave calculations of each attribute and reporting. This system produces 4 attributes that greatly affect the results of the classification. The attributes used in this research are the attributes are quarter 1, quarter 2, quarter 3 and quarter 4. Prediction results obtained using the nave Bayes algorithm produce information that can be used by stores to identify the best-selling products purchased by consumers so that it can help prapti shops to find and determine the target market more accurately. Sources of data taken from the previous 1 year with system accuracy using a confusion matrix resulted in 83.3% accuracy, 84.2% precision and 88.9% recall. Â Â Â Keywords : Data mining, Nave bayes Classifier, Code Igniter, Confusion Matri
Functional organic thin films under extreme confinement
No full text"Confining materials can produce dramatic changes in their fundamental properties. As evident from graphene and other 2D materials, reducing film thickness of materials to a few layers of even monolayers can alter their optical, electronic and magnetic properties compared to bulk counterparts. One of the tenets of current materials research is to harvest these unique properties of thin film materials at ""extreme confinement"", i.e., at condition when the film thickness reduces below a critical value where one or more structural aspects such as molecular packing, orientation, conformation, as well as properties begin to deviate from bulk. So far, significant advancements have been made in extremely confined materials where individual entities are held together by strong covalent bonds, such as most inorganic materials. However, such studies on organic molecules are lacking. This is partly because of fabrication challenges that arise as the bonds that hold entities in the supramolecular structure of organic molecules are significantly weaker. My thesis aims to crystallize extremely confined thin films of two functional materials, active pharmaceutical ingredients (APIs) and conjugated polymers, and then to explore and elucidate the resulting variations in structure and properties compared to thicker films.
Low aqueous solubility of APIs is one of the most significant impediments in pharmaceutical industry. Nanosizing has been recognized as an effective to address this challenge. My approach to nanosize poorly soluble APIs is to solidify them in to nanothin films by utilizing meniscus-guided solution-coating (MGC) technique. In my first study (Chapter 2), we demonstrated a control in film thickness of APIs in nanometer scale range (1.5 μm to 30 nm) as well as their morphology and molecular packing by varying simple processing parameters. Moreover, we also performed sequential deposition of multiple components in a layer-by-layer manner by utilizing the same approach. Interestingly, we also observed trapping and stabilization of metastable polymorphs of API when coated under highly non-equilibrium conditions. In my following study (Chapter 3), I aimed to elucidate the role of nanoconfinement in the observed phenomenon as well as to investigate its role on dissolution properties of APIs. Here, I observed abrupt order-to-disorder transition and stabilization of semi-crystalline and amorphous forms of three different APIs when the film thickness was decreased below a critical value of ~25-30 nm in all three APIs. I also developed a dissolution model that predicted an enhancement in solubility and intrinsic dissolution rate (IDR) upon decrease in film thickness. The experimental results closely matched this model and we demonstrated a drastic increase in IDR upon decreasing the thickness and increasing disorder in the films.
Next, I explored into two-dimensionalization of conjugated polymers- a novel class of semiconducting materials that have enabled fabrication of inexpensive, transparent, flexible electronics. Monolayer films of conjugated polymers are gaining an increasing attention because of their potential in tuning optoelectronic properties compared to bulk films, application in fabrication of ultrasensitive sensors, and as a near-ideal platform for studying fundamental charge transport mechanisms. However, fabrication of 2D films with high coverage and high degree of order remains challenging, and fundamental questions on how multiscale morphology and electronic properties of these films change when confined to monolayer films remain unanswered. In my work (Chapter 4), I first utilized dynamic-template-directed MGC technique to fabricate highly ordered and aligned 2D monolayer films of conjugated polymers of ~3.5 nm thickness with 100% coverage, which contrasted with disordered monolayers produced on solid substrates. Furthermore, I observed that the polymer chains in monolayers on dynamic template were highly twisted and their backbone planarity increased monotonically until the film thickness was increased to a critical value of ~20-30 nm. This led to a decrease in interfacial trap state density and an increase in hole mobility of the polymer films by almost 3 orders of magnitude when film thickness was increased from monolayer to the critical thickness. In addition, I fabricated OFET-based sensors incorporating ultrathin films of polymers which showed sensitivity of ~83% to ammonia vapors of ~1ppb concentration. Next, I explored into graphene surfaces as a template for monolayer films of polymers (Chapter 5) and observed significant enhancement in multiscale morphology with higher fiber density, coverage, degree of crystallinity, alignment and polymer backbone planarity compared to those on control silicon substrates. This accompanied with p-doping of the polymer by the graphene substrates. OFET devices incorporating graphene nanoflakes in ultrathin films of polymer blends showed enhancement in hole mobility by ~2 orders of magnitude compared to pristine polymer films. We attributed this to a decrease in interfacial trap state density and change in morphology, resulting due to the interaction between graphene and the polymer.
Overall, my thesis has demonstrated strategies to overcome the challenges associated with fabricating extremely confined thin films of organic materials and reported deviations in structure and properties of such films with respect to the bulk. The insights gained from these studies will be helpful in harvesting enhanced properties of extremely confined thin films of pharmaceuticals and organic electronics, and will hopefully inspire exploration into confinement effects of other organic materials."Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-08-01The student, Prapti Kafle, accepted the attached license on 2021-06-23 at 16:14.The student, Prapti Kafle, submitted this Dissertation for approval on 2021-06-23 at 16:43.This Dissertation was approved for publication on 2021-06-25 at 15:41.DSpace SAF Submission Ingestion Package generated from Vireo submission #16710 on 2022-01-12 at 13:03:33Made available in DSpace on 2022-01-12T22:51:40Z (GMT). No. of bitstreams: 7
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The family ties of acute leukemia
No full textDetailed formal protocol with illustrations and extensive bibliography.UT Southwestern--Internal Medicin
The undertaking for Becharaji : a project from them and their's
No full textThis thesis investigates the predicament of the Hijra community of Bahucharaji town in India. Hijra is a term used to imply the transgender community belonging to the Hindu religion and also is specific to the transgender community of Bahucharaji The thesis identifies the discrimination the community faces and strives for their betterment through architectural solutions.
Designing a space where the community can strive to be independent by nurturing their skills and also flourish in an environment where they can express themselves freely.
The thesis persists to create an ideal setting for their all-around growth and a culture of self-belief which enhances their lifestyle in the region. It seeks to create a larger impact in the community across the state and country too which could perhaps bring an end to their poor economic state.
Reactivating the epicenter, the proposed project will act as a seed project by the dint of which empowerment will spread through sensible architectural intervention.
Thereby this project is an attempt for change that pulls the strings of equality formulating a cohesive humanistic fabric.Applied Science, Faculty ofArchitecture and Landscape Architecture (SALA), School ofUnreviewedGraduat
Problematika Opsi Pembayaran Kembali Pinjaman Extended Fund Facilities-IMF: Suatu Analisis Ekono-Politik tentang Sebab Akibat dan Skenario Solusinya
No full textThe author of article below declares that the main problem in Indonesia economy is not only exit strategy of IMF, but also because of EFF-IMF will end on December 31, 2003., and MPR decided to stop it based on Tap MPR No.VI year 2002. In this respect; it needs to think way how to repay debt from EFF-IMF. The following criteria that Indonesia still needs the trust of international market, Indonesia should grow self confident, and Indonesia can be an expectation in national and integrity of Indonesia. According to writer that Indonesia should consider to choose option cash payment be tween 5,4-8,4 billion US. Dollars to propose toward reforming IMF
FAN-F: A Fourier Analysis Network-based Framework for Efficient and Reliable Spectrum Sensing for 5G and Beyond
No full textSpectrum sensing plays a major role for dynamic spectrum access in Cognitive Radio Networks as we move towards 6G networks characterized by high-frequency operation, ultralow latency requirements, and dense spectrum usage. Most state-of-the-art spectrum sensing techniques suffer from high computational complexity and degraded performance in low Signal-to-Noise Ratio (SNR) environments. To overcome these shortcomings, we propose a Fourier Analysis Network (FAN)-based spectrum sensing approach that specifically addresses the challenge of low detection probability in low-SNR conditions while significantly reducing computational cost. The proposed FAN-based framework integrates Fourier transform properties within the network layers, allowing it to better model periodic and frequency-localized characteristics of wireless signals, such as those found in 5G and 6G-based waveforms. We have evaluated the proposed approach on three datasets that include 5G-NR, DeepSig, and Radar. The experimental results show that the proposed method achieves an improvement in the detection probability of 32.88% and 91.43% compared to the baseline models KAN-SS and PU-DetNet, respectively, at SNR = -10dB. The proposed scheme also outperforms the baseline models in terms of F1-score, with a reduction of 50.60% in FLOPs
Praanggapan pada dialog mengenai kejujuran: kajian Pragmatik dalam novel Asal Kau Bahagia karya Bernard Batubara
No full textThe aims of this analysis is to examine presuppositions on dialogue about honesty through pragmatic studies. This is a qualitative study with content analysis method because this research prioritizes the content approach of dialogue in the novel. The data source of this analysis is a dialogues that contain presuppositions and imply honesty in the novel Asal Kau Bahagia by Bernard Batubara. Data provision of this analysis is done by using simak method that is applied through note-taking techniques. The results of this study indicate that 26 data containing presuppositions consisting of 9 data included in factive presuppositions, 3 lexical presuppositions data, 7 data as existantial presuppositions, 5 data as non-factual presuppositions, and 2 data are counterfactual presuppositions. In addition, the research also revealed that through several presupposition there was a message in each speech, the action would always be related to the value of honesty, but sometime it is really to be said. If it happens there is only prejudice and revenge exists. In addition, through this pragmatic, presupposition, and about honesty, the author also hopes that the results of this paper will be able to contribute ideas to the reading community about the importance of the value of honesty in friendship, romance, and in a society that has recently faded
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