657 research outputs found

    Rancang Bangun Kendali Palang Parkir Mobil Menggunakan Smart Card Berbasis PLC

    Get PDF
    Kehidupan manusia yang selalu berkembang akan menuntut suatu pola hidup yang praktis, perkembangan pola hidup yang praktis itu tidak bisa terlepas dari perkembangan teknologi yang semakin modern untuk itu diperlukan sistem parkir yang modern yang bisa memberikan fasilitas bagi para penggunanya. Pada tempat parkir modern, pengoperasian tempat parkir dapat dilakukan tanpa petugas di gardu masuk maupun keluar. Kendararaan/pelanggan dapat dilengkapi dengan suatu perangkat elektronik yang dapat mengidentifikasi kendaraan yang masuk ke ruang parkir, membuka palang secara otomatis demikian juga pada saat keluar langsung perangkat elektronik melakukan transaksi otomatis yang ditagihkan ke bank. Perkembangan manejemen parkir saat ini tidak terlepas oleh Barrier gate. Barrier Gate “Palang-Parkir” adalah Kombinasi dari mesin motor yang sudah terbukti handal dengan sistem palang yang mewakili Mesin Palang Otomatis terbaik. Auto Mechanical Barrier adalah alat yang cocok untuk digunakan di Mall, Bandar Udara, Pabean, kompleks Militer, Apartemen, Hotel, Pelabuhan, Pabrik, maupun untuk Perumahan. Panjang Palang dapat dibuat sesuai ukuran, karena setiap tipe palang parkir dibedakan untuk panjang palangnya hal ini dikarenakan panjang pendeknya palang masing-masing memiliki fungsi yang berbeda. Sistem barrier gate yang banyak terdapat dipasaran saat ini berbasis Mikrokontroler sebagai procesornya, karena microkontroler dianggap lebih murah dan fleksible dalam penerapanya. Untuk itu rancang bangun Barrier gate yang berbasis PLC bisa menjadi pilihan

    Quantum Black Hole in the Generalized Uncertainty Principle Framework

    Full text link
    In this paper we study the effects of the Generalized Uncertainty Principle (GUP) on canonical quantum gravity of black holes. Through the use of modified partition function that involves the effects of the GUP, we obtain the thermodynamical properties of the Schwarzschild black hole. We also calculate the Hawking temperature and entropy for the modification of the Schwarzschild black hole in the presence of the GUP.Comment: 11 pages, no figures, to appear in Physical Review

    Brachistochrone of Entanglement for Spin Chains

    Full text link
    We analytically investigate the role of entanglement in time-optimal state evolution as an appli- cation of the quantum brachistochrone, a general method for obtaining the optimal time-dependent Hamiltonian for reaching a target quantum state. As a model, we treat two qubits indirectly cou- pled through an intermediate qubit that is directly controllable, which represents a typical situation in quantum information processing. We find the time-optimal unitary evolution law and quantify residual entanglement by the two-tangle between the indirectly coupled qubits, for all possible sets of initial pure quantum states of a tripartite system. The integrals of the motion of the brachistochrone are determined by fixing the minimal time at which the residual entanglement is maximized. Entan- glement plays a role for W and GHZ initial quantum states, and for the bi-separable initial state in which the indirectly coupled qubits have a nonzero value of the 2-tangle.Comment: 9 pages, 4 figure

    Idiopathic calcinosis cutis universalis

    Full text link

    Effects of Alpha-Lipoic Acid and Myoinositol Supplementation on the Oocyte Enviroment of Obese Infertile Women

    Get PDF
    INTRODUCTION Obesity is characterized by increased inflammation and oxidative stress, resulting in adverse effects on women reproductive potential. Antioxidant supplementation may exert a positive effect on the obese ovarian environment. Indeed, we preliminarily observed a reduction of mitochondrial (mt) DNA content, a marker of oxidative stress, in granulosa cells of obese infertile women supplemented with Sinopol\uae (Laborest SpA), composed by alpha-lipoic acid (ALA) 800 mg, myoinositol (MYO) 2 g, folic acid (FA) 400 ug. This suggested a potential role of Sinopol\uae in reducing oxidative stress in the obese ovarian environment. Here we analyzed Total Antioxidant Capacity (TAC) in follicular fluid and mtDNA levels in granulosa cells, in a larger population of infertile women undergoing in vitro fertilization (IVF). METHODS 19 normal weight (NW) and 24 obese (OB) infertile women were enrolled in our IVF center. Infertility was investigated and a non-ovarian diagnosis was made. Patients did not present any additional pathology. All women were provided with FA and among them 15 OB (OB-SIN) were also supplemented with ALA and MYO, for 2 months before ovarian stimulation. Follicular fluid (FF) and granulosa cells (GC) were collected after oocyte retrieval. TAC was measured in FF by enzymatic assay, mtDNA levels evaluated in GC by Real-time PCR. Results were compared by ANOVA and correlations assessed by Pearson\u2019s correlation (SPSS; IBM). RESULTS OB groups had similar BMI (OB patients supplemented with only folic acid (OB-F): 30.2 \ub1 0.7; OB-SIN: 32.7 \ub1 1.1 kg/m2). Women age was similar in all groups (NW: 36.7 \ub1 0.6; OB-F: 37.6 \ub1 1.7; OB-SIN: 35.9 \ub1 1.1 years). Among OB women, antioxidant capacity was significantly higher in OB-SIN than in OB-F. mtDNA levels showed an opposite trend, being decreased in OB-SIN and increased in OB-F compared to NW, though not reaching statistical significance. mtDNA levels were significantly and inversely correlated with the number of total oocytes and metaphase II (mature) oocytes. Pregnancy rate was similar in NW (36.8%) and OB-SIN (33.3%) women, while it was lower in OB-F patients (11.1%). CONCLUSION We analyzed molecular markers in granulosa cells and follicular fluid as indicators of oocytes oxidative state. Our results suggest that supplementation with a compound of ALA -a natural antioxidant, cofactor in the mt respiratory chain- and MYO -an insulin-sensitizer- might increase antioxidant defenses and reduce oxidative stress in the obese ovarian environment, possibly contributing at restoring physiological conditions. This might improve IVF pregnancy rates in obese infertile women. Further studies are needed to clarify the synergic action of ALA, MYO and FA on the oocyte oxidative environment. Supported by Laborest Sp

    Discovering sequences with potential regulatory characteristics

    Get PDF
    AbstractWe developed a computational model to explore the hypothesis that regulatory instructions are context dependent and conveyed through specific ‘codes’ in human genomic DNA. We provide examples of correlation of computational predictions to reported mapped DNase I hypersensitive segments in the HOXA locus in human chromosome 7. The examples show that statistically significant 9-mers from promoter regions may occur in sequences near and upstream of transcription initiation sites, in intronic regions, and within intergenic regions. Additionally, a subset of 9-mers from coding sequences appears frequently, as clusters, in regulatory regions dispersed in noncoding regions in genomic DNA. The results suggest that the computational model has the potential of decoding regulatory instructions to discover candidate transcription factor binding sites and to discover candidate epigenetic signals that appear in both coding and regulatory regions of genes

    Whole-Genome Sequence of Sungri/96 Vaccine Strain of Peste des Petits Ruminants Virus

    Get PDF
    We report the complete genome sequence of the Sungri/96 vaccine strain of peste des petits ruminants virus (PPRV). The whole-genome nucleotide sequence has 89 to 99% identity with the available PPRV genome sequences in the NCBI database. This study helps to understand the epidemiological and molecular characteristics of the Sungri/96 strain

    Braneworld stars and black holes

    Get PDF
    We look for spherically symmetric star or black hole solutions on a Randall-Sundrum brane from the perspective of the bulk. We take a known bulk solution, and analyse possible braneworld trajectories within it that correspond, from the braneworld point of view, to solutions of the brane Tolman-Oppenheimer-Volkoff equations. Our solutions are therefore embedded consistently into a full bulk solution. We find the full set of static gravitating matter sources on a brane in a range of bulk spacetimes, analyzing which can correspond to physically sensible sources. Finally, we look at time-dependent trajectories in a Schwarzschild--anti de Sitter spacetime as possible descriptions of time-dependent braneworld black holes, highlighting some of the general features one might expect, as well as some of the difficulties involved in getting a full solution to the question.Comment: 39 pages, 15 figure

    Exact results on decoherence and entanglement in a system of N driven atoms and a dissipative cavity mode

    Get PDF
    We solve the dynamics of an open quantum system where N strongly driven two-level atoms are equally coupled on resonance to a dissipative cavity mode. Analytical results are derived on decoherence, entanglement, purity, atomic correlations and cavity field mean photon number. We predict decoherence-free subspaces for the whole system and the N-qubit subsystem, the monitoring of quantum coherence and purity decay by atomic populations measurements, the conditional generation of atomic multi-partite entangled states and of cavity cat-like states. We show that the dynamics of atoms prepared in states invariant under permutation of any two components remains restricted within the subspace spanned by the completely symmetric Dicke states. We discuss examples and applications in the cases N=3,4.Comment: 7 pages, 4 figures, accepted in EPJ
    corecore