The rigid shell component for superrotation in planetary atmospheres: Angular momentum budget, mechanical analog and simulation of the spin up process

An analysis of superrotation in the atmosphere of planets, with rotation axis perpendicular to the orbital plane is presented. As the atmosphere expands, Hadley cells develop producing a redistribution of mass and angular momentum. A three dimensional thermally driven zonally symmetric spectral model and Laplace transformation simulate the time evolution of a fluid leading from corotation under globally uniform heating to superrotation under globally nonuniform heating. For high viscosities the rigid shell component of atmospheric superrotation can be understood in analogy with a pirouette. During spin up angular momentum is transferred to the planet. For low iscosities, the process is reversed. A tendency toward geostrophy, combined with increase of surface pressure toward the poles (due to meridional mass transport), induces the atmosphere to subrotate temporarily at lower altitudes. Resultant viscous shear near the surface permits angular momentum to flow from the planet into the atmosphere propagating upwards to produce high altitude superrotation rates

Pengaruh Self Assessment System dan Pemeriksaan Pajak terhadap Penerimaan Pajak Penghasilan (PPh) (Studi pada Kantor Pelayanan Pajak Madya Malang Periode 2012-2014)

This study aims to determine the effect of Self Assessment System which is represented by the amount of Tax Payment Slip of Income Tax submitted and Periodic Tax Return of Income Tax reported, Tax Audit as represented by the amount of Underpayment Tax Assessment Letter and Added Underpayment Tax Assessment Letter against the Income Tax Revenue either simultaneously or partially. The explanatory research is a type of research that is selected in this study . The research data is secondary data, which is the amount of monthly Payment Slip of Income Tax submitted and Periodic Tax Return of Income Tax reported, Tax Audit as represented by the amount of Underpayment Tax Assessment Letter and Added Underpayment Tax Assessment Letter, and Income Tax Revenue for 36 months. Statistical analysis Descriptive and inferential statistical analysis is a method of data analysis used in this study . Here are the results obtained from this study : ( 1 ) the amount of Tax Payment Slip of Income Tax submitted, Periodic Tax Return of Income Tax reported , Underpayment Tax Assessment Letter and Added Underpayment Tax Assessment Letter has significant effect on income tax revenues simultaneously . ( 2 ) the amount of Tax Payment Slip of Income Tax submitted, Periodic Tax Return of Income Tax reported has significant effect on the amount of income tax revenue partially , while the amount of Underpayment Tax Assessment Letter and Added Underpayment Tax Assessment Letter doesn't have significant effect on income tax receipts partially

Fixed wing CCW aerodynamics with and without supplementary thrust deflection

The concept of circulation control was successfully demonstrated in flight using an A-6 aircraft. Circulation control can provide an aircraft with STOL performance of heavy lift capability. For ship based Naval aircraft the lower takeoff and landing velocities result in reduced deck gear and wind over the deck requirements. Circulation control airfoils can be mechanically less complex and lightweight compared to multi-element high lift airfoils

Coherent energy migration in solids: Determination of the average coherence length in one‐dimensional systems using tunable dye lasers

The coherent nature of energy propagation in solids at low temperatures was established from the time resolved response of the crystal to short optical pulses obtained from a dye laser (pumped by a nitrogen gas laser). The trapping and detrapping of the energy by shallow defects (x traps) was evident in the spectra and enabled us to extract the coherence length: l≳700 Å=186 molecules for the one‐dimensional triplet excitons of 1,2,4,5‐tetrachlorobenzene crystals at T<4.2° K. This length which clearly exceeds the stochastic random walk limit is related to the thermalization mechanisms in this coupled exciton–trap system, and its magnitude supports the notion that exciton–phonon coupling is responsible for the loss of coherence on very long molecular chains (trap concentration is 1/256 000)

Heating and cooling a tri-level house with a hydronic baseboard-valance system

Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign