316 research outputs found

    Klaten Cinema Center Dengan Penekanan Arsitektur Kontemporer

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    Film is a work of art that comes from people who have creativity and imagination in the creation of film. At this time the number of film production nationally and internationally experienced an increase. It is these factors that curently affect the appeal of people to watch in theaters. The spectators'tactfulness in enjoying the film had a major effect on the condition of the screening scene, the cinema atmosphere can change the film in front of the audience. Until now many cinema cocept with one shopping , both of them give positive impact between each other but both have very different role, Cinema is a means of entertainment inthe form of film screening activity whereas shopping is a special place for people to shop. Because the tendency of cinema in use as the attraction of a commercial area cause poor variety of places to watch. Klaten Cinema located at Jl.Jombor Indah, Bantulan, central klaten. In designing Klaten Cinema will carry the concept of contemporary building design that will realize the cinema building that has a new and different characters public through this Cinema building

    Karakterisasi Mekanis Bahan Kampas Kopling (Clutch) Sepeda Motor Dengan Bahan Serat Kelapa, Arang Tempurung Kelapa, Serbuk Aluminium Dan Resin Phenolic

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    Penelitian ini untuk mengetahui harga kekerasan keausan serta koefisien gesek kampas kopling dengan variasi komposisi serbuk aluminium, serbuk arang tempurung kelapa, serat kelapa dan resin phenolic kemudian dibandingkan dengan kampas kopling yang ada dipasaran yaitu kampas kopling indopart. Bahan yang digunakan dalam penelitian ini adalah serat kelapa, serbuk arang tempurung kelapa, serbuk aluminium, dan resin phenolic. Kemudian dalam pembuatan dilakukan proses kompaksi dengan gaya sebesar 2,5 ton dan ditahan selama 60 menit. di dalam proses kompaksi ini kita mengunakan hieter dengan suhu 1300C agar campuranya bisa menjadi lebih padat dan menyatu. Setelah mencapai holding time yang di inginkan, dies dilepas kemudian dilakukan proses sintering yaitu dengan dimasukkan kedalam oven. Suhu diukur 190ºC selama 30 menit dan spesimen dikeluarkan dari cetakan. Setelah didapat spesimen kampas kopling variasi kemudian dilakukan pengujian kekerasan brinell, pengujian keausan dan koefisien gesek serta dilakukan uji foto struktur mikro untuk melihat kepadatan dan sifat masing-masing bahan penyusun spesimen kampas kopling sepeda motor. Hasil pengujian ini menunjukkan bahwa komposisi bahan dengan variasi serat sabut kelapa sebesar 40 %, serbuk arang tempurung kelapa sebesar 15 %, serbuk aluminium sebesar 15 %, dan resin phenolic 30% didapat harga kekerasan 15,86 kg/mm2, harga keausan uji kering sebesar 0,223 mm/jm dan harga keausan uji basah pengaruh oli sebesar 0,197 mm/jm. Sehingga mendekati harga kampas kopling indopart dengan harga kekerasan 13,27 kg/mm2, harga keausan uji kering sebesar 0,21 mm/jm dan harga keausan uji basah pengaruh oli sebesar 0,18 mm/jm

    Non-linear height-diameter models for oriental beech (Fagus orientalis Lipsky) in the Hyrcanian forests, Iran

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    The relationship between tree height and diameter is an important element in growth and yield models, in carbon budget and timber volume models, and in the description of stand dynamics. Six non-linear growth functions (i.e. Chapman-Richards, Schnute, Lundqvist/Korf, Weibull, Modified Logistic and Exponential) were fitted to tree height-diameter data of oriental beech in the Hyrcanian mixed hardwood forests of Iran. The predictive performance of these models was in the first place assessed by means of different model evaluation criteria such as adjusted R squared (adjR2), root mean square error (RMSE), Akaike information criterion (AIC), mean difference (MD), mean absolute difference (MAD) and mean square (MS) error criteria. Although each of the six models accounted for approximately 75% of total variation in height, a large difference in asymptotic estimates was observed. Apart from this, the predictive performance of the models was also evaluated by means of cross-validation and by splitting the data into 5-cm diameter classes. Plotting the MD in relation to these diameter at breast height (DBH) classes showed for all growth functions, except for the Modified Logistic function, similar mean prediction errors for small- and medium-sized trees. Large-sized trees, however, showed a higher mean prediction error. The Modified Logistic function showed the worst performance due to a large model bias. The Exponential and Lundqvist/Korf models were discarded due to their showing biologically illogical behavior and unreasonable estimates for the asymptotic coefficient, respectively. Considering all the above-mentioned criteria, the Chapman-Richards, Weibull, and Schnute functions provided the most satisfactory height predictions. However, we would recommend the Chapman-Richards function for further analysis because of its higher predictive performance

    Investigation of Natural Effective Gamma Dose Rates case study: Ardabil Province in Iran

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    Gamma rays pose enough energy to form charged particles and adversely affect human health. Since, the external exposure of human beings to natural environmental gamma radiation normally exceeds that from all man-made sources combined, natural background gamma dose rates and corresponding annual effective doses were determined for selected cities of Ardabil province from 2009 to 2010. Outdoor gamma dose rates were measured using an Ion Chamber Survey Meter in 105 locations in selected districts. Average absorbed dose for Ardabil, Sar-Ein, Germy, Neer, Shourabil Recreational Lake, and Kosar were determined as 265, 219, 344, 233, 352, and 358 nSvh-1, respectively. Although dose rates recorded for Germi and Kosar are comparable with some areas with high natural radiation background, however, the dose rates in other districts are well below the levels reported for such locations. Average annual effective dose due to indoor and outdoor gamma radiation for Ardabil province was estimated to be 1.73 (1.35-2.39) mSv, which is on average 2 times higher than the world population weighted average

    Pengembangan Meja Potong Kain dengan Metode Reverse Engineering di UKM Pembuatan Cadar Al-Kubro di Desa Temboro

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    Al Qubro is one of Small Medium Enterprise (SME) "niqab" production in Temboro village. Several processes must be done to produce fabric becomes ready to wear a niqab. In the overlay process before the cutting process must be handled by two people. In this process, only skilled and experienced people who can handle it because the cutting process is the key to the best result of the product. Therefore the industries look forward to getting a solution to make this process can be handled by one person only and with more effective time. Base on the problem, this research was done to make or develop the design of a fabric cutting board to make the cutting process more effective and efficient. The developing of this cutting board was by using a reverse engineering method. This method observed the advantages and disadvantages of the conventional cutting board. Furthermore, it was compared with the advantages and disadvantages of the new cutting board. Based on the research on the redesign of the fabric cutting board in Al Qubro SME by reverse engineering method, the new design of fabric cutting board is suitable with the factory needs. Furthermore, from the comparison analysis, the new cutting board needs 14,6 minutes in one round of the cutting process. Otherwise, the conventional cutting boards need 26,7 minutes in one round of the cutting process. Moreover, the new design cutting boards need one handler only, whereas the conventional one needs two people. Keywords: Cutting Board, Reverse Engineering, Benchmarkin

    From clump to disc scales in W3 IRS4 A case study of the IRAM NOEMA large programme CORE

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    Context. High-mass star formation typically takes place in a crowded environment, with a higher likelihood of young forming stars affecting and being affected by their surroundings and neighbours, as well as links between different physical scales affecting the outcome. However, observational studies are often focused on either clump or disc scales exclusively. Aims. We explore the physical and chemical links between clump and disc scales in the high-mass star formation region W3 IRS4, a region that contains a number of different evolutionary phases in the high-mass star formation process, as a case-study for what can be achieved as part of the IRAM NOrthern Extended Millimeter Array (NOEMA) large programme named CORE: “Fragmentation and disc formation in high-mass star formation”. Methods. We present 1.4 mm continuum and molecular line observations with the IRAM NOEMA interferometer and 30 m telescope, which together probe spatial scales from ~0.3−20′′ (600−40 000 AU or 0.003−0.2 pc at 2 kpc, the distance to W3). As part of our analysis, we used XCLASS to constrain the temperature, column density, velocity, and line-width of the molecular emission lines. Results. The W3 IRS4 region includes a cold filament and cold cores, a massive young stellar object (MYSO) embedded in a hot core, and a more evolved ultra-compact (UC)H II region, with some degree of interaction between all components of the region that affects their evolution. A large velocity gradient is seen in the filament, suggesting infall of material towards the hot core at a rate of 10−3−10−4 M⊙ yr−1, while the swept up gas ring in the photodissociation region around the UCH II region may be squeezing the hot core from the other side. There are no clear indications of a disc around the MYSO down to the resolution of the observations (600 AU). A total of 21 molecules are detected, with the abundances and abundance ratios indicating that many molecules were formed in the ice mantles of dust grains at cooler temperatures, below the freeze-out temperature of CO (≲35 K). This contrasts with the current bulk temperature of ~50 K, which was obtained from H2CO. Conclusions. CORE observations allow us to comprehensively link the different structures in the W3 IRS4 region for the first time. Our results argue that the dynamics and environment around the MYSO W3 IRS4 have a significant impact on its evolution. This context would be missing if only high resolution or continuum observations were available

    Bio-nanotechnology application in wastewater treatment

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    The nanoparticles have received high interest in the field of medicine and water purification, however, the nanomaterials produced by chemical and physical methods are considered hazardous, expensive, and leave behind harmful substances to the environment. This chapter aimed to focus on green-synthesized nanoparticles and their medical applications. Moreover, the chapter highlighted the applicability of the metallic nanoparticles (MNPs) in the inactivation of microbial cells due to their high surface and small particle size. Modifying nanomaterials produced by green-methods is safe, inexpensive, and easy. Therefore, the control and modification of nanoparticles and their properties were also discussed
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