Enhanced Activity of Chemically Synthesized Nanorod Mn3O4 Thin Films for High Performance Supercapacitors

The present study addresses a cost effective method for fabricating high performance and flexible supercapacitor based on the transition metel oxides of Mn3O4 thin films. The Mn3O4 prepared by SILAR method at different cycles such as 25, 50, 75 and 100 cycles. The prepared Mn3O4 thin films were characterized by means of structural, morphological and electrochemical studies. The structural studies of X-ray diffraction (XRD) reveal that 75 cycles have good crystalline nature with tetrahedral structure. Fourier transform infrared spectroscopy (FTIR) indicates the functional group of Mn-O. Raman spectra indicate the formation of Mn3O4 thin films. SEM analysis depicted that Mn3O4 thin films have a rod-like structure. TEM images show the SAED pattern and lattice fringes of Mn3O4. The electrochemical measurements of CV, GCD and impedance measurements are investigated using 1M Na2SO4 electrolyte. In the electrochemical measurement Mn3O4 thin films exhibit the maximum specific capacitance value of 295 Fg-1 at the scan rate of 2 mVs-1

Observation of many-body localization in a one-dimensional system with single-particle mobility edge

We experimentally study many-body localization (MBL) with ultracold atoms in a weak one-dimensional quasiperiodic potential, which in the noninteracting limit exhibits an intermediate phase that is characterized by a mobility edge. We measure the time evolution of an initial charge density wave after a quench and analyze the corresponding relaxation exponents. We find clear signatures of MBL, when the corresponding noninteracting model is deep in the localized phase. We also critically compare and contrast our results with those from a tight-binding Aubry-Andr\'{e} model, which does not exhibit a single-particle intermediate phase, in order to identify signatures of a potential many-body intermediate phase

Exploring the Single-Particle Mobility Edge in a One-Dimensional Quasiperiodic Optical Lattice

A single-particle mobility edge (SPME) marks a critical energy separating extended from localized states in a quantum system. In one-dimensional systems with uncorrelated disorder, a SPME cannot exist, since all single-particle states localize for arbitrarily weak disorder strengths. However, if correlations are present in the disorder potential, the localization transition can occur at a finite disorder strength and SPMEs become possible. In this work, we find experimental evidence for the existence of such a SPME in a one-dimensional quasi-periodic optical lattice. Specifically, we find a regime where extended and localized single-particle states coexist, in good agreement with theoretical simulations, which predict a SPME in this regime

Dose related pharmacokinetics of ofloxacin in healthy volunteers

OBJECTIVE: To evaluate the pharmacokinetic profile of ofloxacin in healthy volunteers after single oral doses of 600 and 800 mg. DESIGN: Seven healthy volunteers were administered 600 and 800 mg of ofloxacin on two occasions with an interval of one week. Paired samples of blood and saliva were collected after 1, 2, 3, 6, 9, 12, 24, 32 and 48 hours post-dose. Urine samples were collected over a period of 0–6, 6–12 and 12–24 hours. Concentrations of ofloxacin in plasma, saliva and urine were assayed by high performance liquid chromatography. RESULTS: Increases of 22% in peak plasma concentration (Cmax) and 40% in area under the concentrationtime curve (AUC0–24) were observed with the 800 mg dose. The other parameters, namely time to attain Cmax, half-life, the apparent volume of distribution, plasma and renal clearance and percentage of dose excreted in urine over 24 hours were independent of doses. The mean ratios of the concentration in saliva to the concentration in plasma ranged from 0.4–0.6, and the correlation coefficient was 0.94. CONCLUSIONS: Dose proportionality was observed in Cmax and AUC0–24 when 600 and 800 mg doses of ofloxacin were given. Ofloxacin determined in saliva seems to be suitable for therapeutic drug monitoring

Coherent transport of neutral atoms in spin-dependent optical lattice potentials

We demonstrate the controlled coherent transport and splitting of atomic wave packets in spin-dependent optical lattice potentials. Such experiments open intriguing possibilities for quantum state engineering of many body states. After first preparing localized atomic wave functions in an optical lattice through a Mott insulating phase, we place each atom in a superposition of two internal spin states. Then state selective optical potentials are used to split the wave function of a single atom and transport the corresponding wave packets in two opposite directions. Coherence between the wave packets of an atom delocalized over up to 7 lattice sites is demonstrated.Comment: 4 pages, 6 figure

सी एम् एफ आर आई का विशाखपट्टणम क्षेत्रीय केंद्र आँध्रप्रदेश की समुद्री मात्स्यिकी केलिए समर्पित संस्थान

सी एम् एफ आर आई का विशाखपट्टणम क्षेत्रीय केंद्र आँध्रप्रदेश की समुद्री मात्स्यिकी केलिए समर्पित संस्था

PENGEMBANGAN SISTEM INFORMASI AKADEMIK BERBASIS WEB PADA SMAN 1 KUPANG

Information System is an activity of organized procedures, which when executed will produce information. Development of academic information systems in SMAN 1 KUPANG because the old system is only limited to web profiles and has not supported teaching and learning activities.  This information system is expected to support the educational activities, namely in terms of making it easier for data processing in the presentation of school information.. This study uses the PHP 5.6.30 programming language and HTML for storage using mysql 10.1.21. This study uses two tests, testing the system using WAPT tools and testing the questionnaire with a biverate person. System testing consists of 3 parts, namely performance testing, stress testing and volume testing, the results of testing performance testing 164 percents / s and stress testing between ranges of levels 2 to 31. There are 4 criteria for questionnaire testing to see the success of the system being developed, 4 criteria These are the interface, speed, benefits and ease of the system. The results of questionnaire testing correlated between intertface and ease of 67.6%, interface and system benefits by 58.6% and correlation between interface and system speed by 62.1%.Sistem Informasi adalah suatu kegiatan dari prosedur-prosedur yang diorganisasikan, yang bilamana dieksekusi akan menghasilkan informasi . Pengembangan sistem infromasi akademik di SMAN 1 KUPANG dikarenakan sistem yang lama hanya sebatas web profil dan belum mendukung dalam kegiatan belajar mengajar.  Sistem informasi ini diharapkan dapat menunjang kegiatan pendidikan yaitu dalam hal pengolahan data sehingga memudahkan dalam penyajian informasi sekolah. Penelitian ini menggunkan bahasa pemograman PHP 5.6.30 dan HTML untuk penyimpanan menggunakan  mysql 10.1.21. Penelitian ini menggunakan dua pengujian, pengujian sistem menggunakan tools WAPT dan pengujian kuesioner dengan biverate person. Pengujian sistem terdapat 3 bagian yaitu performance testing, stress testing dan volume testing,  Hasil dari pengujian performance testing 164 perkbit/s dan stress testing diantara range tingkat 2 sampai 31. Pengujian kuesioner terdapat 4 kirteria untuk melihat keberhasilan dari sistem yang di kembangkan, 4 kriteria tersebut yaitu interface, kecepatan, manfaat dan kemudahan dari sistem. Hasil dari pengujian kuesioner korelasi antara interface dan kemudahan sebesar 67.6%, interface dan manfaat sistem sebesar 58,6% dan korelasi antara interface dan kecepatan sistem sebesar 62.1%. &nbsp

Studies on the Recovery of Bleached Corals in Andaman: Fishes as Indicators of Reef Health

The corals in Andaman and Nicobar Islands suffered extensive bleaching during April 2010 to the extent of 60–70 % due to elevated sea surface temperature (SST) and a significant portion of that is hitherto dead. This study evaluates the degree of recovery of the coral reefs and reef fishes, a year after the event. Line intercept transect (LIT) surveys were conducted in three sites, namely, North Bay, Tarmugli and Chidiyatapu for assessing coral cover together with visual census of reef fishes along the same transects. It was observed that all sites were quite badly affected during the bleaching period with more than 95 % of the corals being fully or partially bleached. Out of the bleached corals, only 54 % recovered at North Bay, whereas Tarmugli and Chidiyatapu exhibited 81 and 86 % recovery, respectively. The collapse of coral reef systems affected the abundance and diversity among fish species. Due to recovery and new recruitment of corals, live coral cover has increased, and consequently,, abundance of fishes seems to have increased. Understanding the associations of fishes and corals could possibly lead to selection of certain species of fishes as indicators of reef health. The results of the study lead to the hypothesis that fishes, especially those belong to the families, Chaetodontidae, Pomacentridae, Acanthuridae and Scaridae can be potential indicators of reef health

Quantum Many-Body Dynamics of Coupled Double-Well Superlattices

We propose a method for controllable generation of non-local entangled pairs using spinor atoms loaded in an optical superlattice. Our scheme iteratively increases the distance between entangled atoms by controlling the coupling between the double wells. When implemented in a finite linear chain of 2N atoms, it creates a triplet valence bond state with large persistency of entanglement (of the order of N). We also study the non-equilibrium dynamics of the one-dimensional ferromagnetic Heisenberg Hamiltonian and show that the time evolution of a state of decoupled triplets on each double well leads to the formation of a highly entangled state where short-distance antiferromagnetic correlations coexist with longer-distance ferromagnetic ones. We present methods for detection and characterization of the various dynamically generated states. These ideas are a step forward towards the use of atoms trapped by light as quantum information processors and quantum simulators.Comment: 13 pages, 10 figures, references adde

Observation of many-body localization of interacting fermions in a quasi-random optical lattice

We experimentally observe many-body localization of interacting fermions in a one-dimensional quasi-random optical lattice. We identify the many-body localization transition through the relaxation dynamics of an initially-prepared charge density wave. For sufficiently weak disorder the time evolution appears ergodic and thermalizing, erasing all remnants of the initial order. In contrast, above a critical disorder strength a significant portion of the initial ordering persists, thereby serving as an effective order parameter for localization. The stationary density wave order and the critical disorder value show a distinctive dependence on the interaction strength, in agreement with numerical simulations. We connect this dependence to the ubiquitous logarithmic growth of entanglement entropy characterizing the generic many-body localized phase.Comment: 6 pages, 6 figures + supplementary informatio