Kualitas Perangkat Pembelajaran Fisika Berbasis Model Creative Problem Solving dengan Pendekatan Open-ended pada Materi Usaha dan Energi Terintegrasi Energi Biomassa

Guru diharapkan mampu menyiapkan perangkat pembelajaran yang dikembangkan berdasarkan kompetensi dan karakter. Perangkat pembelajaran yang dikembangkan hendaknya memenuhi kriteria valid, praktis, dan efektif. Tujuan penelitian ini adalah mengetahui tingkat kualitas perangkat pembelajaran. Metode penelitian ini adalah reseach and development (R&D) menggunakan model four-D yang terdiri dari define, design, develop, dan disseminate. Khusus untuk mengukur kualitas perangkat pembelajaran dilakukan pada fase develop. Instrumen penelitian ini terdiri dari: lembar observasi, angket, lembar penilaian hasil belajar. Analisis data menggunakan teknik deskriptif persentase. Validitas dari perangkat pembelajaran sebesar 86.38 dengan kategori sangat valid, praktikalitas dari perangkat pembelajaran adalah 92.93 dengan kategori sangat praktis, dan efektivitas dari perangkat pembelajaran berada pada skor 86.11. Berdasarkan data tersebut diperoleh informasi perangkat pembelajaran fisika berbasis model creative problem solving dengan pendekatan open-ended pada materi usaha dan energi terintegrasi energi biomassa dapat digunakan pada proses pembelajaran di sekolah

Reinforcement of poly (polymethylmethacrylate) with carbon fiber and alumina as a composite material for orthopedic implant

In this work,experimental and theoretical properties of composite materials arepresented. The optimal mechanical properties of the polymer polymethyl methacrylate(PMMA) material that used in manufacturing internal Orthopaedic.The (PMMA) isused as matrix reinforced by two materials,composite with Carbon-fibre(CF) andalumina (Al2O3). The composite materials are controlling three variables; theexistence, amount of (Al2O3 and CF) and the type of angle distribution CF. Thetensile test used to study the mechanical properties. The scanning electron (SEM)linked with energy dispersive spectroscopy (EDS) and optical microscopy were persained the presence of the materials, microstructure and solidified samples. The solidwork program was used to make model for bone bridge drowning in three dimensions.The model was used by the finite element analysis ANSYS 14.5 program that is used todesign sample orthopaedic (humerus bone section) and test load 10 Kg applied on it.The theoretical results agree with experimental results in terms of tensile test that isthe composite material PMMA+AL2O3+CF) with uniform distribution for CF givebetter properties in terms of increasing in Yield stress, decreasing density andmaximum deformation

Willingness to Accept Value of Land Development Value as a Basis for Conservation Program Paddy Fields Sekarsuli Sub in Village District Berbah Sleman

This study discusses the conversion of paddy fields in Sleman are constantly increasing over time. Sleman District Government to establish areas of productive agricultural centers to maintain the ability to produce food, especially rice. The subjects were farmers who have land in the village of as many as 35 people Sekarsuli obtained using snowball sampling. Paddy land conservation program will be sustained when the value of the program is received and in accordance with the expectations of landowners. One model is the determination of the value of conservation programs is the value of land development rights. Value of land development rights is the difference between the expected value of the optimal land to the value of land. Estimates of the value of further land development rights offered to landowners if they agreed that if the value was used as the basis of determining the value of land conservation programs. Conclusion: (1) based on the estimates obtained by the average value of land amounting to 55 percent of the estimated value of the optimal land. The amount of excess is an average of 45 percent, hereinafter referred to as the value of land development rights (Value Development Right). (2) Respondents who agreed with conservation programs by 24 respondents, while the other does not agree as much as 11 respondents. The land area and distance lands to public facilities be an influential factor on the landowner's decision to accept or reject the programs offered

An Evaluation Framework for Adaptive Security for the IoT in eHealth

The work presented here has been carried out in the project ASSET – Adaptive Security for Smart Internet of Things in eHealth (2012–2015) funded by the Research Council of Norway in the VERDIKT programme. WThe work presented here has been carried out in the project ASSET – Adaptive Security for Smart Internet of Things in eHealth (2012–2015) funded by the Research Council of Norway in the VERDIKT programme. W—We present an assessment framework to evaluate adaptive security algorithms specifically for the Internet of Things (IoT) in eHealth applications. The successful deployment of the IoT depends on ensuring security and privacy, which need to adapt to the processing capabilities and resource use of the IoT. We develop a framework for the assessment and validation of context-aware adaptive security solutions for the IoT in eHealth that can quantify the characteristics and requirements of a situation. We present the properties to be fulfilled by a scenario to assess and quantify characteristics for the adaptive security solutions for eHealth. We then develop scenarios for patients with chronic diseases using biomedical sensors. These scenarios are used to create storylines for a chronic patient living at home or being treated in the hospital. We show numeric examples for how to apply our framework. We also present guidelines how to integrate our framework to evaluating adaptive security solutionsThe work presented here has been carried out in the project ASSET – Adaptive Security for Smart Internet of Things in eHealth (2012–2015) funded by the Research Council of Norway in the VERDIKT programme

RF performance of the GAVRT wideband Radio Telescope (EuCAP 2010)

A wideband Radio Telescope was designed and built for use in the Goldstone Apple Valley Radio Telescope (GAVRT) program. It uses an existing 34-meter antenna retrofitted with a tertiary offset mirror placed at the apex of the main reflector. It can be rotated to use two feeds that cover the 0.5 to 14 GHz band. The feed for 4.0 to 14.0 GHz is a cryogenically cooled commercially available open boundary quadridge horn from ETS-Lindgren. Coverage from 0.5 to 4.0 GHz is provided by an un-cooled scaled version of the same feed that uses a cooled LNA. The measured performance is greater than 40% over much of the band

The Effect of Fulica Atra Feather on Oil Sorption Capacity of Polyurethane Foam

Comparative study of oil absorption using modified polyurethane foam as sorbents performed where Polyurethane type polyester was prepared locally and modified by using the feather of Coot (Fulica atra) Bird. The objective of the study to compare the oil spill removal capability of the pure and modified polyurethane.  Two types of Crude oil brought from Basrah oil fields used in this study, Sorption test in hydraulic oil was also done, the obtained results show that absorption capacity directly proportional to the filler type and used oils according to the difference in the capillary structure of both pure and modified polyurethane and the special structure of feather with stiff central shaft .  The polyurethane foam modified with wing feather has the highest absorption ratio due to changes between contour and fluff feather, the effect of viscosity very obvious in this study on absorption where the viscous oils unable to flow rapidly in to the sorbent due to the high cohesion more than the adhesion between oil and the sorbent materials, Finally, the modified polyurethane foam sorbents has a good buoyancy. Keywords: Polyurethane, Feather, Crude oil, Oil spill, Fulica atra, Polymer