Perencanaan Alat Angkat Kendaraan Niaga Kapasitas 2 Ton

Equipment design start from component design. In order to meet the requirements, it is designed base on the material used. The purpose of this study is to design a manually operated lifting equipment of 2 ton capacity used in a commercial vehicles in the form of engineering drawing. Comparison data used in this study is a triple lift floor jack. From the calculations, it is found that the largest load happened a lifting position

Kajian Pelayanan Publik Di Kantor Camat Airmadidi Kabupaten Minahasa Utara

The purpose of this study to assess the extent to which the Head Office Airmadidi service in North Minahasa regency. Based on these problems then the purpose of this study is to assess the public service to the community members at Head Office Airmadidi North Minahasa regency with emphasis on the factors of employee motivation, employee labor discipline and employee participation in training. Research methodology was qualitative research methodology to establish whether the status of employee informants structural and staff employees, religious leaders, students and community. In data collection is done using the primary data that more priority to interview people in depth interviews and the results are presented in the summary of the interview guide. The results showed that the public service performed by the apparatus is effective Airmadidi Head Office so that the community as the applicant's experience in service. Within a few things to note there is a commitment among employees and a strong determination to achieve and improve service quality. However not all services can be achieved because there are constraints and obstacles faced by employees in the Office of Head Airmadidi. However, the existence of favorable conditions of work environment can be minimized, then the constraints and obstacles that dihadinya it. From this study it can be concluded that the public service in the Office of Head Airmadidi has gone well according to the List of Assessment Implementation of Civil Works (DP3) is one of the points include job performance and employee responsibilities are the overall value of all employees and each employee is well worth have a workbook to see the results of the performance achievements of what he was doing. Advice authors to further improve public services effectively and efficiently Airmadidi District Government should create and enforce Standard Operating Services to further improve the quality of public services better

Gambaran Makroskopik Dan Mikroskopik Pankreas Pada Hewan Coba Postmortem

: Medicolegal examination is beneficial in police investigation inter alia to determine the time of death and causes as well as mechanisms of death. Postmortem macroscopic and microscopic changes could be alternatives to estimate the time of death. This study was aimed to obtain the microscopic and macroscopic postmortem changes in pancreas based on the variation of time up to 48 hours. This was a descriptive observational study using two domestic pigs as animal model. Pancreas samples were obtained at time intervals as follows: 0 hour, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 8 hours, 10 hours, 12 hours, 14 hours, 16 hours, 18 hours, 20 hours, 22 hours, 24 hours, 26 hours, 28 hours, 30 hours, 33 hours, 36 hours, 39 hours, 42 hours, and 48 hours postmortem. The macroscopic examination showed changes in its consistency at 8 hours postmortem, followed by changes in color, consistency, and length during 39 hours postmortem. Microscopic changes of pancreas occurred at 2 hours postmortem as congestion of the acini. At 5 hours postmortem, the acinar cells were difficult to be identified; most of their nuclei were distributed out of the cells. At 8 hours postmortem the structures of acini could not be identified and the cells had undergone karyolysis. At 10 hours postmortem the structures of all acini could not be identified. Conclusion: Postmortem macroscopic changes of pancreas began at 8 hours postmortem meanwhile microscopic changes began at 2 hours postmortem as acinar congestion. At 8 hours postmortem most acini's structures could not be identified and their cells' nuclei underwent karyolysis

Studi Mengenai Kapasitas Friksi Tiang Pada Tanah Lempung Ekspansif Yang Ditinjau Dari Kadar Air Tanah, Waktu, Dan Material

Tanah lempung ekspansif memiliki sifat swelling, yaitu mengembang saat kadar air tinggi dan menyusut saat kadar air rendah. Sifat swelling ini ditentukan oleh mineral yang terkandung di dalam tanah. Penelitian ini membahas seberapa besar Perubahan daya dukung friksi tiang pada saatmengalami Perubahan kadar air, pengistirahatan setelah pemancangan, serta jenis material tiang. Tanah yang diambil merupakan tanah lempung ekspansif di daerah Ciputra pada kedalaman 1 meter. Tanah dikondisikan dalam keadaan undisturb dengan variabel drying 10%, 20%, 30%, 40%, 50%,wetting 2,5%, 5%, 7,5% sebagai penentu kadar air, pengistirahatan selama 1, 2, 5, 10, dan 30 hari digunakan sebagai penentu waktu, sedangkan permodelan tiang baja dan tiang beton digunakan sebagai variabel jenis material. Hasil yang didapat dari percobaan adalah kadar air mempengaruhi kuat geser tanah sampel. Nilai kapasitas friksi tiang mengalami peningkatan seiring dengan penurunan kadar air, karena adanya suction saat kadar air rendah. Selain itu terjadi peningkatan kapasitas friksi tiang seiring dengan lamanya pengistirahatan. Pada kadar air tinggi, peningkatan kapasitas friksi tidak terlalu berarti. Tiang baja memiliki nilai kapasitas friksi yang lebih besar daripada tiang beton. Selain akibat dari permukaan beton berongga, yang menyebabkan luas permukaannya lebih kecil, hisapan pada baja lebih tinggi daripada pada beton

Lattice dynamics and vibrational spectra of the orthorhombic, tetragonal and cubic phases of methylammonium lead iodide

The hybrid halide perovskite CH3NH3PbI3 exhibits a complex structural behaviour, with successive transitions between orthorhombic, tetragonal and cubic polymorphs at ca. 165 K and 327 K. Herein we report first-principles lattice dynamics (phonon spectrum) for each phase of CH3NH3PbI3. The equilibrium structures compare well to solutions of temperature-dependent powder neutron diffraction. By following the normal modes we calculate infrared and Raman intensities of the vibrations, and compare them to the measurement of a single crystal where the Raman laser is controlled to avoid degradation of the sample. Despite a clear separation in energy between low frequency modes associated with the inorganic PbI3 network and high-frequency modes of the organic CH3NH3+ cation, significant coupling between them is found, which emphasises the interplay between molecular orientation and the corner-sharing octahedral networks in the structural transformations. Soft modes are found at the boundary of the Brillouin zone of the cubic phase, consistent with displacive instabilities and anharmonicity involving tilting of the PbI6 octahedra around room temperature.Comment: 9 pages, 4 figure

Semiquantitative theory of electronic Raman scattering from medium-size quantum dots

A consistent semiquantitative theoretical analysis of electronic Raman scattering from many-electron quantum dots under resonance excitation conditions has been performed. The theory is based on random-phase-approximation-like wave functions, with the Coulomb interactions treated exactly, and hole valence-band mixing accounted for within the Kohn-Luttinger Hamiltonian framework. The widths of intermediate and final states in the scattering process, although treated phenomenologically, play a significant role in the calculations, particularly for well above band gap excitation. The calculated polarized and unpolarized Raman spectra reveal a great complexity of features and details when the incident light energy is swept from below, through, and above the quantum dot band gap. Incoming and outgoing resonances dramatically modify the Raman intensities of the single particle, charge density, and spin density excitations. The theoretical results are presented in detail and discussed with regard to experimental observations.Comment: Submitted to Phys. Rev.

Wigner Crystal in One Dimension

A one--dimensional gas of electrons interacting with long--range Coulomb forces ($V(r) \approx 1/r$) is investigated. The excitation spectrum consists of separate collective charge and spin modes, with the charge excitation energies in agreement with RPA calculations. For arbitrarily weak Coulomb repulsion density correlations at wavevector $4k_F$ decay extremely slowly and are best described as those of a one--dimensional Wigner crystal. Pinning of the Wigner crystal then leads to the nonlinear transport properties characteristic of CDW. The results allow a consistent interpretation of the plasmon and spin excitations observed in one--dimensional semiconductor structures, and suggest an interpretation of some of the observed features in terms of ``spinons''. A possible explanation for nonlinear transport phenomena is given.Comment: 10 pages, RevTe

Gravitational anomaly and fundamental forces

I present an argument, based on the topology of the universe, why there are three generations of fermions. The argument implies a preferred gauge group of SU(5), but with SO(10) representations of the fermions. The breaking pattern SU(5) to SU(3)xSU(2)xU(1) is preferred over the pattern SU(5) to SU(4)xU(1). On the basis of the argument one expects an asymmetry in the early universe microwave data, which might have been detected already.Comment: Contribution to the 2nd School and Workshop on Quantum Gravity and Quantum Geometry. Corfu, september 13-20 2009. 10 page