Prototype Konveyor Seleksi Objek Berdasarkan Warna Menggunakan Kamera Pixy Cmucam 5 Berbasis Arduino

In the developing of packaging industry, the sorting of the goods that is done in the end will select the object based on the color. The sorting that is done manually now has been left in industry, because it will take a long time and not so eficient and cause high error. Therefore, in order to desain aw automatic technique in industry, to determine the color of the object and to sort, the sensor of Camera Pixy Cammu5 is used. By using Camera which is Pixy Cammu5, the degree of accuracy increases and the distance is gettig to far than the sensor of color so close. This dence is run uder arduino mega as the place of unit processing to proceed the data and as control to control the motor DC, servo and pixy cammu5 camera. The function of motor the DC is control conveyor while the motor servo is functioned to control the result of detected object. The result of this observation is to sort the object accordance with the color detection with ahighe accuracy compare to a color sensor. Conveyor rotates when PWM minimum 100, if it is under 100 the object can’t be detected. The detection of object based on the coulour reaches 100% when PWM 100-125. When PWM is over 125, the conveyor rotates but the camera can’t detect object because the conveyor is too fast

Pengembangan Desa Wisata Tenun Lurik di Desa Tlingsing, Klaten

Tlingsing Village is one of the villages in Klaten Regency that has many lurik weaving craftsmen. The majority of craftsmen are home industry based and have been taught from generation to generation. Until now, many people outside the region have visited to learn about lurik weaving and shopping. The existence of this lurik weaving can be a significant tourism potential if it is well developed. Apart from lurik weaving, there are still many other potentials that are still not realized by the community so that they are not yet developed. From the previous description, the author wishes to develop the potential found in Tlingsing Village into a viable and attractive tourist village. The basic concept of the development being carried out is based on the local community, namely by instilling community awareness of the potential that exists in Tlingsing Village. Then the author directs and provides recommendations for development and development that can be done to maximize tourist attraction. With the development of the lurik weaving industrial area in Tlingsing Village to become a tourist village, it can enable the wider community to get to know more about the lurik woven fabric industry. In addition, the community can better recognize the potential that is around them so that the products and services produced by the community are expected to be more competitive with other products that are currently available

Optimasi Desain Konstruksi Sel Dan Sistem Injeksi Cairan Pada Sensor Qcm (Quartz Crystal Microbalance)

Sensor QCM merupakan salah satu sensor massa ultra sensitif, yang banyak diaplikasikan sebagai biosensor. Dalam aplikasinya sebagai biosensor, teknik immobilisasi digunakan untuk pendeteksian dan pengamatan reasksi antar biomolekul. Konstruksi sel atau sel reaksi dan sistem injeksi cairan sample memiliki peranan penting ketika proses immobilisasi pada sensor QCM. Telah banyak dilakukan penelitian tentang perancangan konstruksi sel dan efek laju alir carian sample terhadap frekuensi resonansi dari sensor QCM. Pada penelitian sebelumnya, telah diketahui bahwa efek laju alir dari sistem injeksi syringe pump berpengaruh pada respon frekuensi dari sensor QCM, semakin cepat laju alir cairan sample akan menimbulkan sinyal spike atau noise pada respon frekuensi dari sensor QCM. Pada penelitian ini dilakukan optimasi desain pada konstruksi sel dan sistem injeksi cairan sample untuk menghilangkan efek sinyal spike atau noise pada proses immobilisasi. Optimalisasi konstruksi sel dikakukan dengan melakukan treatment plasma oksidasi pada permukaan konstruksi sel dengan variasi durasi treatment yaitu 600, 1200 dan 1800 second. Optimasi pada sistem injeksi dilakukan dengan mengatur kecepatan laju alir. Didapatkan variasi kecepatan laju alir yaitu 0.7 sampai 6.3 L / second. Dengan melakukan optimalisasi pada konstruksi sel dan sistem injeksi cairan sample, sinyal spike atau noise ketika proses immobilisasi berhasil dihilangkan

The 5-HTTLPR polymorphism of the serotonin transporter gene and short term behavioral response to methylphenidate in children with ADHD

<p>Abstract</p> <p>Background</p> <p>Animal models of ADHD suggest that the paradoxical calming effect of methylphenidate on motor activity could be mediated through its action on serotonin transmission. In this study, we have investigated the relationship between the 5-HTTLPR polymorphism in the serotonin transporter gene (<it>SLC6A4</it>) and the response of ADHD relevant behaviors with methylphenidate treatment.</p> <p>Methods</p> <p>Patients between ages 6-12 (n = 157) were assessed with regard to their behavioral response to methylphenidate (0.5 mg/kg/day) using a 2-week prospective within-subject, placebo-controlled (crossover) trial. The children were then genotyped with regard to the triallelic 5-HTTLPR polymorphism in the <it>SLC6A4 </it>gene. Main outcome measure: Conners' Global Index for parents (CGI-Parents) and teachers (CGI-Teachers) at baseline and at the end of each week of treatment with placebo and methylphenidate. For both outcome measurements, we used a mixed model analysis of variance to determine gene, treatment and gene × treatment interaction effects.</p> <p>Results</p> <p>Mixed model analysis of variance revealed a gene × treatment interaction for CGI-Parents but not for CGI-Teachers. Children homozygous for the lower expressing alleles (<it>s+l_G= s'</it>) responded well to placebo and did not derive additional improvement with methylphenidate compared to children carrying a higher expressing allele (<it>l_A</it>). No genotype main effects on either CGI-Parents or CGI-teachers were observed.</p> <p>Conclusions</p> <p>A double blind placebo-controlled design was used to assess the behavioral effects of methylphenidate in relation to the triallelic 5-HTTLPR polymorphism of the <it>SLC6A4 </it>gene in children with ADHD. This polymorphism appears to modulate the behavioral response to methylphenidate in children with ADHD as assessed in the home environment by parents. Further investigation is needed to assess the clinical implications of this finding.</p> <p>Trial Registration</p> <p>ClinicalTrials.gov NCT00483106</p

KAJIAN PERENCANAAN TATA RUANG DAN WILAYAH KAWASAN RAWAN BENCANA TANAH LONGSOR DI KABUPATEN BANYUMAS

Banyumas is located in the western part of Central Java province has 27 districts, where there are 17 districts that have high levels risk of landslide events. Banyumas topography varies from plains to mountains in the region of Mount Slamet. Study of spatial planning based on landslides perspectives are expected to provide information for landslide potential areas and as a reference for the development of disaster-prone locations based on the level of risk. The research was conducted using the guidelines of Public Works Ministerial Regulation No. 22/PRT/M/2007 of spatial landslide-prone areas with some modification, a process aided secondary data analysis techniques and GIS mapping methods combined with remote sensing, and processing of primary data with field observations and interviews were analyzed qualitatively descriptive. Qualitative descriptive analysis was used to analyze the physical characteristics of nature, the level of capacity and aspirations patterns of policy-making, reasons for use of land in landslide-prone areas and spatial planning policy. The results of this study is the availability of planning information and control the utilization of spatial planning in Banyumas based on areas prone to landslide, ground motion susceptibility maps, ground motion vulnerability maps, ground motion risk maps. Processing of risk maps / zones indicate potential ground motion that the stacking overlap between the two weighting susceptibility maps and vulnerability map in the ratio 70% and 30% more in line with the conditions of Banyumas. Zone classification maps obtained potential ground motion is divided into 8 classes according to the three types of zones / typology and level of vulnerability. Banyumas landslides area spatial planning can be done with the identification of potential landslide areas, development and management pattern of activities adjusted to match the characteristics of the region

Klasifikasi Mutu Buah Jambu Kristal Berdasarkan Berat dan Warna Menggunakan Logika Fuzzy Mamdani,

Jambu kristal merupakan varietas jambu biji yang baru dikembangkan di Taiwan pada tahun 1991, kemudian dikembangkan di Indonesia pada tahun 2009 hingga sekarang. Keunggulan jambu kristal terletak pada ukuran, rasa, dan warnanya. Dalam komersialisasi buah jambu kristal, digunakan suatu standar tertentu sebagai jaminan mutu buah jambu kristal. Grade mutu buah jambu kristal ditentukan berdasarkan beberapa paramaeter, diantaranya adalah berat dan warna buah. Umumnya proses sortir buah jambu kristal dilakukan dengan memanfaatkan tenaga manusia. Untuk sortir buah jambu kristal dalam jumlah banyak, diperlukan beberapa pekerja agar seluruh buah jambu kristal dapat tersortir. Jumlah pekerja juga mempengaruhi kecepatan proses sortir. Selain itu, meskipun terdapat standar kriteria yang sama, proses sortir dengan tenaga manusia akan bersifat lebih subjektif sesuai penilaian masing-masing pekerja. Kondisi mental dan fisik pekerja, seperti kelelahan, kurang fokus, atau lainnya, dapat mempengaruhi penilaian pekerja. Oleh karena itu, diperlukan sistem pengambilan keputusan yang dapat bekerja konsisten dalam menentukan grade buah jambu kristal secara akurat dan objektif sesuai standar kriteria dengan sudut pandang penilaian yang seragam. Dalam upaya membantu berjalannya proses sortir buah jambu kristal, dikembangkan sistem klasifikasi mutu buah jambu kristal berdasarkan berat dan warna menggunakan logika fuzzy mamdani ini. Pada pennelitian ini dirancang dua versi algoritma klasifikasi menggunakan logika fuzzy mamdani. Algoritma versi A terdiri dari input berupa berat buah jambu kristal yang terbagi ke dalam 3 kategori himpunan fuzzy dan hue warna buah jambu kristal yang terbagi ke dalam 3 kategori himpunan fuzzy serta 3 aturan fuzzy. Algoritma versi B terdiri dari input berupa berat buah jambu kristal yang terbagi ke dalam 5 kategori himpunan fuzzy dan hue warna buah jambu kristal yang terbagi ke dalam 3 kategori himpunan fuzzy serta 7 aturan fuzzy. Hasil pengujian dengan 100 sampel buah jambu kristal menunjukkan bahwa algoritma versi A memberikan hasil klasifikasi dengan akurasi sebesar 92%, sedangkan algoritma versi B memberikan hasil klasifikasi dengan akurasi sebesar 96%. Algoritma logika fuzzy mamdani versi B mampu mengklasifikasikan seluruh data grade B dan grade C dengan tepat, namun masih terdapat kesalahan pada data grade A. Rata-rata selisih waktu kerja yang diperlukan oleh kedua algoritma tersebut dalam melakukan klasifikasi pada data yang sama adalah sebesar 2,08 ms, dengan selisih waktu kerja terlama sebesar 4 ms dan algoritma versi A bekerja lebih cepat dari versi B. Algoritma logika fuzzy mamdani versi B memiliki kinerja keseluruhan yang lebih baik daripada algoritma logika fuzzy mamdani versi A. Akurasi algoritma versi B yang 4% lebih tinggi dari versi A menjadi pertimbangan penting karena ketika algoritma ini diterapkan dalam industri yang memproses buah jambu kristal dalam jumlah besar, nilai ini dapat berdampak signifikan terhadap perbedaan jumlah buah jambu kristal yang diklasifikasikan ke dalam grade mutu yang salah atau tidak sesuai. Di sisi lain, meskipun waktu kerja yang diperlukan oleh algoritma versi B lebih lama dari versi A, namun nilai selisih waktu kerja tidak berdampak signifikan

Experimental and numerical investigations on the effect of a novel internal surface micro grooving towards improving convective heat transfer performance of tube heat exchangers

In the present work, the use of the passive heat transfer enhancement technique through surface alteration was explored. The enhancement was achieved through internal conduit surface microgrooving using a new apparatus that was developed by modifying a Magnetic Abrasive Finishing technique. A new surface profile was created and later verified using optical and laser profiler measurement. The new profile was investigated numerically to compare the heat transfer and hydrodynamic performance against other profiles that have been studied in the literature. It was found from the results that the new profile shows much higher heat transfer improvement and comparable pressure loss to the previously investigated profiles (i.e. square, rectangular, trapezoidal and circular). Overall, the new groove geometry provides the highest performance followed by the circular, triangular, curvy, square and rectangular grooves. Also, the results indicate that designs with a smooth profile performs better than those with sharp edges, owing to the elimination of stationary fluid spots within the grooves. The effectiveness between the profiles was compared based on the level of heat transfer enhancement against the flow penalty. Experimental validation was further conducted for the experimentally generated groove. The results revealed that a relatively small surface temperature drop was obtained, corresponding to a slight improvement in heat transfer. This confirms the results generated by the simulation that groove size plays a major role in attaining significant improvement in heat transfe