Pengaruh Warna Kemasan Terhadap Persepsi Rasa Pada Produk \ud Minuman

Strategy color packaging is a technique that affects the consumer perception of a product. With the influence of perception, the marketers will be able to win marketing competition, because basically competition in marketing, in addition to fighting product, is also a battle of perception. \ud This study aims to test the hypothesis of the influence of packaging color (blue, white, red) on the perception of taste in beverage products. The design of this study using laboratory experimental approach Within the subject. The participants in this study were college students as \ud many as 30 people. In conducting the study, 30 students are divided into 6 groups, where each group consisted of 5 participants. Sampling technique used in this study is simple random sampling. Hypothesis test used in this study is the statistical test Manova (multivariate analysis \ud of variance). \ud Hypothesis test results showed that: (1) there is a color effect on the perception of taste in the bottled beverage products (F=6.785, sig=0.000). (2) there is a color effect on the perception of color packaging sweetness (F=24.30, sig =0.000<0.01), there is the influence of packaging color \ud of sour taste (F=7964, sig =0.001<0.01), there is a color effect on freshness taste perception (F=20,101; sig=0.000<0.01). The analysis result also shows that there is no influence of color on the saltiness taste perception (F=0431; sig=0.430> 0.05), and no influence of color packaging to bitter taste perception (F=0507;sig=0.604>0.05). \ud Based on the results of this study is recommended to producers for use colors that match packs flavor desired by the consumer

Effect of Microwave Treatment on the Profile of Volatile Compounds and Characteristics of White Pepper (Piper nigrum L.) Essential Oil

Microwave treatment on white pepper was conducted to damage cell tissue to facilitate the distillation and increase the yield of essential oils. The research objective was to determine the effect of pepper varieties and microwave treatment on the profiles of volatile compounds and the characteristics of white pepper essential oils. The research was conducted with 50 grams of white pepper placed into a 15 cm diameter petri dish and put in a microwave oven at the power of 600 watts for 90 seconds then white pepper milled by hammer mill. Essential oils were obtained using the water distillation method then were tested for their characteristics and compounds using Gas chromatography-Mass Spectrometry (GC-MS). White pepper was analyzed using the water content, piperine content, and its cell tissue microstructure was analyzed using Scanning Electron Microscope (SEM). The results showed that different pepper as accession produced different profiles of volatile compounds, characteristics, and antioxidant activity (p&lt;0.05). The number of volatile compounds of white pepper essential oils identified by GC-MS was 42, where the largest compound was β-caryophyllene (50.51%). Microwave treatment damaged the cell wall of white pepper, lowered water content (17.43%), increased piperine content (10.57%) and essential oil yield (25%), and changed the profiles of volatile compounds of essential oils of Lampung daun lebar accession. Color became bluer (b*value rises by 201.99%), increased specific gravity (1.27%) and antioxidant activity (7.4%), decreased solubility in 95% ethanol (17.95%) and acid number (20.8%) while the refractive index was not affected by pepper accessions and microwave treatment.Microwave treatment on white pepper was conducted to damage cell tissue to facilitate the distillation and increase the yield of essential oils. The research objective was to determine the effect of pepper varieties and microwave treatment on the profiles of volatile compounds and the characteristics of white pepper essential oils. The research was conducted with 50 grams of white pepper placed into a 15 cm diameter petri dish and put in a microwave oven at the power of 600 watts for 90 seconds then white pepper milled by hammer mill. Essential oils were obtained using the water distillation method then were tested for their characteristics and compounds using Gas chromatography-Mass Spectrometry (GC-MS). White pepper was analyzed using the water content, piperine content, and its cell tissue microstructure was analyzed using Scanning Electron Microscope (SEM). The results showed that different pepper as accession produced different profiles of volatile compounds, characteristics, and antioxidant activity (p&lt;0.05). The number of volatile compounds of white pepper essential oils identified by GC-MS was 42, where the largest compound was β-caryophyllene (50.51%). Microwave treatment damaged the cell wall of white pepper, lowered water content (17.43%), increased piperine content (10.57%) and essential oil yield (25%), and changed the profiles of volatile compounds of essential oils of Lampung daun lebar accession. Color became bluer (b*value rises by 201.99%), increased specific gravity (1.27%) and antioxidant activity (7.4%), decreased solubility in 95% ethanol (17.95%) and acid number (20.8%) while the refractive index was not affected by pepper accessions and microwave treatment

Prediction of NOx emissions for an RQL combustor using a stirred reactor modelling approach

In an effort to reduce NOX emissions both in the landing and take-off (LTO) cycle as well as in cruise, significant research has been conducted on novel aero-engine low emissions combustor design concepts. Preliminary combustor design and emissions prediction software tools are becoming increasingly important during the conceptual design phase of aero-engine combustors. They allow a large number of designs to be explored, in a relatively short amount of time, thereby identifying the most promising designs to consider for further development. There are three methods for NOX emission prediction; correlations, stirred reactor models and CFD models. Correlation methods are derived from experimental results and are therefore only applicable for combustors for which data is available. The stirred reactor modelling approach provides a reasonably good compromise with respect to computational time and robustness relative to correlation and CFD based methods. The stirred reactor method assumes finite rate chemistry inside the combustor using simplified chemical kinetic models. The basic concept of the reactor-based method is to split the combustor into a number of reactors (perfectly or partially stirred) to compute the overall emissions. The primary objective of this doctoral research was to assess the suitability and limitations of the stirred reactor modelling approach to predict NOX emissions of a Rich-Burn Quick-Quench and Lean-Burn (RQL) combustor concept. The geometry of the RQL combustor and the model constraints were assumed from a NASA test rig experiment. The stirred reactor emission prediction model developed was verified using this test data. The results suggest that, based on the modelling assumptions made, the stirred reactor modelling approach is able to capture the trends of emissions (with changing boundary conditions) even though there are discrepancies in the absolute values. This suggests that the stirred reactor model is a useful tool during the preliminary design phase to quantify the impact of changes in boundary conditions/design parameters on changes in NOX emissions ... [cont.]

Large spatial Schr;dinger cat state using a levitated ferrimagnetic nanoparticle

The superposition principle is one of the main tenets of quantum mechanics. Despite its counter-intuitiveness, it has been experimentally verified using electrons, photons, atoms, and molecules. However, a similar experimental demonstration using a nano or a micro particle is non-existent. Here in this article, exploiting macroscopic quantum coherence and quantum tunneling, we propose an experiment using a levitated magnetic nanoparticle to demonstrate such an effect. It is shown that the spatial separation between the delocalized wavepackets of a 20 nm ferrimagnetic yttrium iron garnet (YIG) nanoparticle can be as large as 5 μm. We argue that, in addition to using for testing one of the most fundamental aspects of quantum mechanics, this scheme can simultaneously be used to test different modifications, such as wavefunction collapse models, to the standard quantum mechanics. Furthermore, we show that the spatial superposition of a core–shell structure, a YIG core and a non-magnetic silica shell, can be used to probe quantum gravity

Inaugural address

I AM exceedingly happy to be present at today 's S\mposium on -Recent de\,elopments in non-ferrous metals' technology' I would like to take the opportunity to extend a hearty welcome to the distinguished delegates from abroad and from India who have travelled far and wide to be with us and take part in this important symposium . I first visited Jamshedpur in 1938 and that too, to take part in a Sympos-ium organised by the Indian Ceramic Society. I have been here quite a number of times.Each time I come I remember with reverence Jamshedji Tata, the treat founder of this famous steel city

ANALISIS FILTER PRESS DENGAN UDARA BERTEKANAN 20 psi DAN 3 kg/cm2 UNTUK MENENTUKAN PERMEABILITAS SUATU LUMPUR (ALAT BAROID)

Tujuan dari penelitian ini adalah untuk mengetahui komposisi lumpur hasil pengeboran, atau mengetahui sifat fisis dan kimia suatu lumpur dengan mengetahui (ph, viscositas, b.d) untuk menentukan permeabilitas suatu lumpur. Penyuntikan lumpur dalam proses pengeboran berfungsi untuk menekan gas dari dalam bumi atau safety (sefty) tekanan gas. Keterangan lumpur yaitu: tekanan, waktu yang dibutuhkan. Metode penelitian diawali dengan pembuatan alat filter press dan kompresor sebagai udara yang bertekanan dengan mud cup (casing) yaitu : tinggi 3 cm, diameter 22 mm, tebal 2 mm. kemudian masukkan lumpur hasil pengeboran kedalam mud cup (casing) lalu dipress dengan alat filter press dan kompresor untuk menentukan ph, viscositas, b.d. Data yang diambil adalah tekanan (psi), waktu yang dibutuhkan (10 menit) dengan pengujian sebanyak 5 kali tiap menit sekali. Hasil penelitian setelah filtrasi menunjukkan tekanan permulaan menembus reservoir. Tekanan permulaan menunjukkan 8 psi dari raw bahannya dan diperoleh rata – ratanya 5,2 psi dari raw bahannya. Setelah mengalami filtrasi mendekat kita pada nilai rata – rata permeabilitas lumpur yang mendekati kebenaran (k = 170,73727 mD). Dan sisa hasil filtrasi lumpur yaitu : lumpur (tanah, batuan, pasir), serta hasil filtrasi lebih kasar