357 research outputs found

    Ice Machine Design Es Puter for Small Industries and Household With Quality Function Deployment Method (QFD)

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    Designing icemakers (es puter) technology (hard ice cream) have evolved from manual to automatic . In designing a tool not only to consider the technological aspects but also pay attention to other aspects in accordance with the needs and the level of consumer interest . Therefore needed an alternative design Es Puter making machine with the application of the method of Quality Function Deployment ( QFD ), to find and translate the desires and needs of consumers in small industry and households . Through the stages of the design process and product development , as well as the results of the questionnaire are tabulated in QFD found that respondents wanted the  machine of es puter -power, ease of maintenance and has a reliable and produce good quality products . From the research produced a prototype for an ice machine puter with a 12V DC electric motor drive 40W , portable design, with a production capacity of 5 liters each. And equipped with automatic key features , 12V 7Ah battery and place the glass for presentation. Keywords : Es Puter , QFD, Small Industrie

    Applicability of the National Comprehensive Cancer Network/Multinational Association of Supportive Care in Cancer Guidelines for Prevention and Management of Chemotherapy-Induced Nausea and Vomiting in Southeast Asia: A Consensus Statement.

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    A meeting of regional experts was convened in Manila, Philippines, to develop a resource-stratified chemotherapy-induced nausea and vomiting (CINV) management guideline. In patients treated with highly emetogenic chemotherapy in general clinical settings, triple therapy with a serotonin (5-hydroxytryptamine-3 [5-HT3]) antagonist (preferably palonosetron), dexamethasone, and aprepitant is recommended for acute CINV prevention. In resource-restricted settings, triple therapy is still recommended, although a 5-HT3 antagonist other than palonosetron may be used. In both general and resource-restricted settings, dual therapy with dexamethasone (days 2 to 4) and aprepitant (days 2 to 3) is recommended to prevent delayed CINV. In patients treated with moderately emetogenic chemotherapy, dual therapy with a 5-HT3 antagonist, preferably palonosetron, and dexamethasone is recommended for acute CINV prevention in general settings; any 5-HT3 antagonist can be combined with dexamethasone in resource-restricted environments. In general settings, for the prevention of delayed CINV associated with moderately emetogenic chemotherapy, corticosteroid monotherapy on days 2 and 3 is recommended. If aprepitant is used on day 1, it should be continued on days 2 and 3. Prevention of delayed CINV with corticosteroids is preferred in resource-restricted settings. The expert panel also developed CINV management guidelines for anthracycline plus cyclophosphamide combination schedules, multiday cisplatin, and chemotherapy with low or minimal emetogenic potential, and its recommendations are detailed in this review. Overall, these regional guidelines provide definitive guidance for CINV management in general and resource-restricted settings. These consensus recommendations are anticipated to contribute to collaborative efforts to improve CINV management in Southeast Asia

    Characterization of Wideband Semiconductor Optical Amplifiers based on OptiSystem and MATLAB

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    A study about different types of semiconductor optical amplifiers (SOA)s - linear, nonlinear and in-line SOAs modelling is carried out. The SOA key performance characteristics covered in this paper include optical gain, power, and amplified spontaneous emission (ASE) noise figure. These characteristics definition are included in this work together with the tabulation of each SOA specification parameter operating in the operational conventional (C-) band. The first modelling of SOA wideband travelling wave (TW) component is done through a simple configuration using OptiSystem software. Next, the second modelling method is simulated through numerical steady-state model using MATLAB software. Each graphical result is explained and discussed according to the operational characteristic theories of SOA along with the evaluation for the best performance among the types of SOAs. The contrasted result among them had shown that linear SOA has the most ideal and competitive characteristics, as compared to the nonlinear and in-line SOAs, especially a better choice as gain medium in the multiwavelength fiber laser (MWFL) application

    Analisis dan Peningkatan Kualitas Proses Taper pada Industri Pegas dengan Pendekatan Lean Six Sigma

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    XYZ merupakan industri Pegas nasional dengan produk utama Pegas Daun (leaf spring) dan Pegas Keong (coil spring). Hasil laporan produksi diketahui adanya, produk cacat, waiting time dan scraps dalam jumlah yang cukup signifikan. Penelitian ini mempunyai tujuan untuk menyelesaikan masalah dalam proses produksi pegas dengan pendekatan Lean Six Sigma dan FMEA. Identifikasi waste dilakukan melalui Value Stream Mapping untuk mengetahui aktivitas value added dan non-value added. Tahapan DMAIC (define, measure, analyse, improve, control) digunakan untuk implementasi six sigma. Hasil penelitian menunjukkan bahwa proses Taper pada Pegas Daun memiliki biaya repair tertinggi pada COPQ (Cost Of Poor Quality) sebesar 70%. Penerapan Lean Six Sigma menunjukkan efektivitas dalam proses Taper. Waste material sebesar 1.2% turun menjadi 0%, extra processing dan waiting dari 16.67 Jam menjadi 0 Jam. Waste defect disebabkan oleh cacat Burrs rata-rata 6% turun menjadi 0%. Sebelum perbaikan, nilai DPMO adalah 16,880 dengan level sigma 3.62, sedangkan setelah perbaikan menjadi 5,027 dengan level sigma 4.92

    Development and characterisation study of liposomes-encapsulated piroxicam.

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    The objective of present work was to develop a novel liposomes-based drug delivery system for a lipophilic non-steroidal anti-inflammatory drug, piroxicam. The system was prepared using proliposomes method and optimised for different preparation parameters including type of proliposomes, concentration of drug, duration of hydration and type of particle size reduction treatment used. All prepared liposomal samples were extensively characterized for their drug-entrapment and size profile using various in-vitro techniques. Present work showed that the most optimum formulation (Pro-lipoTM Duo; 12mg piroxicam per gram Pro-lipoTM; 10 hours hydration time) produced highest amount of actual drug been entrapped in liposomes (800.4 mg/g Pro-lipoTM) with a satisfactory entrapment efficiency of 15.36%. This formulation had also produced liposomal samples with a homogenous (polydispersity index = 0.45) and small particle size (359.95nm). Extrusion technique was found to cause significant reduction in drug-entrapment and size profile of drug-loaded liposomes. A 4-weeks storage study showed that drug-entrapment and size profile of liposomal samples were stable in both refrigerated and room temperature. Electron microscopy revealed that prepared liposomal samples were spherical-shaped and showed concentric lamellae. In conclusion, present work successfully demonstrated a simple, reproducible and practical method of preparation for liposomes-encapsulated piroxicam

    Charged Higgs boson contribution to νˉee\bar{\nu}_e-e scattering from low to ultrahigh energy in Higgs triplet model

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    We study the νˉee\bar{\nu}_e-e scattering from low to ultrahigh energy in the framework of Higgs Triplet Model (HTM). We add the contribution of charged Higgs boson exchange to the total cross section of the scattering. We obtain the upper bound hee/MH±2.8×103GeV1h_{ee}/M_{H^\pm}\lesssim2.8\times10^{-3}GeV^{-1} in this process from low energy experiment. We show that by using the upper bound obtained, the charged Higgs contribution can give enhancements to the total cross section with respect to the SM prediction up to 5.16% at E1014E\leq10^{14} eV and maximum at sMH±2s\approx M_{H^\pm}^2 and would help to determine the feasibility experiments to discriminate between SM and HTM at current available facilities.Comment: 6 pages, 6 figure

    Mass Measurement of 27^{27}P for Improved Type-I X-ray Burst Modeling

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    Light curves are the primary observable of type-I x-ray bursts. Computational x-ray burst models must match simulations to observed light curves. Most of the error in simulated curves comes from uncertainties in rprp process reaction rates, which can be reduced via precision mass measurements of neutron-deficient isotopes in the rprp process path. We perform a precise atomic mass measurement of 27^{27}P and use this new measurement to update existing type-I x-ray burst models to produce an improved light curve. High-precision Penning trap mass spectrometry was used to determine the atomic mass of 27^{27}P. Modules for Experiments in Stellar Astrophysics (MESA) was then used to simulate x-ray bursts using a 1D multi-zone model to produce updated light curves. The mass excess of 27^{27}P was measured to be -670.7±\pm 0.6 keV, a fourteen-fold precision increase over the mass reported in AME2020. The 26^{26}Si(p,γp, \gamma)27^{27}P and reverse photodisintegration reaction rates have been determined to a higher precision based on the new, high precision mass measurement of 27^{27}P, and MESA light curves generated using these rates. Changes in the mass of 27^{27}P seem to have minimal effect on XRB light curves, even in burster systems tailored to maximize impact. The mass of 27^{27}P does not play a significant role in x-ray burst light curves. It is important to understand that more advanced models don't just provide more precise results, but often qualitatively different ones. This result brings us a step closer to being able to extract stellar parameters from individual x-ray burst observations. In addition, the Isobaric Multiplet Mass Equation (IMME) has been validated for the A=27,T=3/2A=27, T=3/2 quartet, but only after including a small, theoretically predicted cubic term and utilizing an updated excitation energy for the T=3/2T=3/2 isobaric analogue state of 27^{27}Si.Comment: 8 pages, 7 figure

    Photoelectrocatalytic reduction of CO2 to methanol over CuFe2O4@PANI photocathode

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    The present study was aimed to convert CO2 into methanol which not only addresses the potential solution for controlling the CO2 concentration level in the atmosphere but also offers an alternative approach for the production of renewable energy source. In this perspective, a hybrid photocatalyst, PANI@CuFe2O4 was synthesized, characterized and used as a photocathode for photoelectrocatalytic (PEC) reduction of CO2 to methanol in aqueous medium at an applied potential of −0.4 V vs NHE under visible light irradiation. The combination of PANI with CuFe2O4 greatly increased the PEC CO2 reduction to methanol owing to enhance the CO2 chemisorption capacity by the photocathode surface and at the same time facilitated the separation of photogenerated electron-hole (e−/h+) pairs. The incident photon to current efficiency (IPCE) and quantum efficiency (QE) for methanol formation in PEC CO2 reduction could be achieved as 7.1 and 24.0% respectively. The rate of formation of methanol in PEC CO2 reduction was found as 49.3 μmol g−1h−1 with 73% Faradaic efficiency. Compared to photocatalytic reaction, the PEC results demonstrated that the applied potential could effectively separate the photogenerated e−/h+ pairs and therefore, enhanced the PEC CO2 reduction activity of the hybrid photocatalyst

    Methylation levels of a novel genetic element, EgNB3 as a candidate biomarker associated with the embryogenic competency of oil palm

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    The association between DNA methylation status and embryogenic competency in oil palm tissue culture was examined through Representational Difference Analysis (RDA) approach, using methylation-sensitive restriction endonucleases. "Difference Products" (DPs) of RDA derived from palms of similar genetic backgrounds but exhibiting different embryogenesis rates during the regeneration process were isolated. The DPs were sequenced using a pyrosequencing platform. To our knowledge, this is the first study profiling partial HpaII methylation sites in oil palm young leaf tissues which are potentially associated with embryogenic amenability through a genomic subtractive approach. Quantitative real-time PCR analysis demonstrated that the methylation status of a novel fragment, EgNB3, was higher in highly embryogenic leaf explants compared to low embryogenesis rate materials. These differences are likely to be contributed by the 5′-mCCGG-3′ and/or 5′-mCmCGG-3′ methylation patterns. Our data suggest that the differentially methylated site in EgNB3 has potential as a molecular biomarker for the screening of oil palm leaf explants for their embryogenic potentials
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