Application of automatic vehicle location in law enforcement: An introductory planning guide

A set of planning guidelines for the application of automatic vehicle location (AVL) to law enforcement is presented. Some essential characteristics and applications of AVL are outlined; systems in the operational or planning phases are discussed. Requirements analysis, system concept design, implementation planning, and performance and cost modeling are described and demonstrated with numerous examples. A detailed description of a typical law enforcement AVL system, and a list of vendor sources are given in appendixes

Preparation of Homeworks in the Course Algorithms

Tato bakalářská práce se zabývá AVL stromy, které spadají do kategorie binárně vyhledávacích stromů. Práce se skládá ze tří částí, jedna část má za cíl naučit studenta vkládat uzly do AVL stromu rekurzivním způsobem, druhá část rušit uzly z AVL stromu nerekurzivním způsobem a poslední část má doplnit studentovy znalosti o stromech. Studentovy výsledky se porovnávají s výsledky vzorového řešení a podle toho jsou mu následně přiděleny body.This Bachelor's thesis is about AVL trees, which belongs to the binary search trees. Thesis contains three parts, objective of the first one is to learn student how insert nodes into AVL trees in recursive way, objective of the second part is to learn student how delete nodes from AVL trees in non-recursive way and objective of the last one is to complete student's knowledge about AVL trees . Student's results are mached with results of model solution and this evaluation establishes student's points.

Desain Aplikasi Avl Monitoring dengan Visualisasi Peta Online Berbasis Arduino Saverino pada USAha Transportasi Darat

Bertambahnya jumlah mobil yang beroperasi di Indonesia juga diikuti dengan meningkatnya kasus pidana terutama untuk motor vechicle (curanmor), dalam hal ini yang beroda 4. Kasus pencurian mobil bahkan tidak saja terjadi pada mobil pribadi, bahkan mobil yang digunakan untuk transportasi bisnis seperti wisata, taksi, kargo dan lain-lain. Banyaknya kasus pencurian, apalagi kasus pencurian mobil untuk unit USAha, salah satu faktor kerugian tersendiri bagi pelaku USAha terutama USAha rental mobil. Untuk mengatasi masalah di atas tentu saja pelaku sewa bisnis mobil harus memiliki teknologi yang dapat melacak setiap unit mobil USAhanya dari jarak jauh sehingga mudah ditemukan kembali jika terjadi tindakan pencurian. Untuk dapat melacak unit mobil USAha rental maka pelaku USAha rental harus memasangkan perangkat Automatic Vehicle Locator (AVL) pada setiap unit mobil USAha rentalnya dan menintegrasikan perangkat lunak AVL monitoring dengan perangkat lunak sistem penjualan yang telah mereka miliki. Sistem pelacakan terdiri dari dua sub sistem yaitu perangkat keras AVL dan Perangkat lunak AVL monitoring dengan Arduino Saverino sebagai pengendali. Cara kerjanya ialah, perangkat lunak AVL monitoring mengirim perintah ke perangkat keras AVL melalui SMS dengan keyword tertentu kemudian perangkat keras AVL mencarikan titik koordinat dari GPS dimana posisinya berada, setelah mendapatkan kode titik kode koordinat maka akan dikirim kembali ke perangkat lunak AVL monitoring melalui SMS Gateway. SMS kode titik koordinat ini akan dikonversi menjadi tampilan visual dalam peta google map dengan bantuan website http://www.gprmcconverter.com/ yang telah terintegrasi dengan perangkat lunak AVL monitoring

Amortized Rotation Cost in AVL Trees

An AVL tree is the original type of balanced binary search tree. An insertion in an $n$-node AVL tree takes at most two rotations, but a deletion in an $n$-node AVL tree can take $\Theta(\log n)$. A natural question is whether deletions can take many rotations not only in the worst case but in the amortized case as well. A sequence of $n$ successive deletions in an $n$-node tree takes $O(n)$ rotations, but what happens when insertions are intermixed with deletions? Heaupler, Sen, and Tarjan conjectured that alternating insertions and deletions in an $n$-node AVL tree can cause each deletion to do $\Omega(\log n)$ rotations, but they provided no construction to justify their claim. We provide such a construction: we show that, for infinitely many $n$, there is a set $E$ of {\it expensive} $n$-node AVL trees with the property that, given any tree in $E$, deleting a certain leaf and then reinserting it produces a tree in $E$, with the deletion having done $\Theta(\log n)$ rotations. One can do an arbitrary number of such expensive deletion-insertion pairs. The difficulty in obtaining such a construction is that in general the tree produced by an expensive deletion-insertion pair is not the original tree. Indeed, if the trees in $E$ have even height $k$, $2^{k/2}$ deletion-insertion pairs are required to reproduce the original tree

Theory of the algebraic vortex liquid in an anisotropic spin-(1/2) triangular antiferromagnet

We explore spin-(1/2) triangular antiferromagnets with both easy-plane and lattice exchange anisotropies by employing a dual vortex mapping followed by a fermionization of the vortices. Over a broad range of exchange anisotropy, this approach leads naturally to a "critical" spin liquid—the algebraic vortex liquid—which appears to be distinct from other known spin liquids. We present a detailed characterization of this state, which is described in terms of noncompact QED3 with an emergent SU(4) symmetry. Descendant phases of the algebraic vortex liquid are also explored, which include the Kalmeyer-Laughlin spin liquid, a variety of magnetically ordered states such as the well-known coplanar spiral state, and supersolids. In the range of exchange anisotropy where the "square lattice" Néel ground state arises, we demonstrate that anomalous "roton" minima in the excitation spectrum recently reported in series expansions can be accounted for within our approach

Study of the development and verification of an integrated code for UAV design

L'objectiu d'aquest estudi és desenvolupar una eina de disseny d'aeronaus utilitzant algoritmes d'optimització per a facilitar el procés. Es pretén incorporar el codi d'estudi i simulació de les actuacions d'un UAV desenvolupat per l'equip Trencalòs Team en un software de disseny aerodinàmic ja existent, ja sigui XFLR5 o AVL. Les funcions objectiu incorporades seran les que l'equip considera per a la participació en el concurs internacional Air Cargo Challenge, amb la intenció de desenvolupar una eina de treball per a Trencalòs que permeti fer un disseny òptim dins del marc de la competició. El treball es dividirà en tres etapes: 1. Incorporació del codi desenvolupat per Trencalòs al software de disseny aerodinàmic2. Fer ús dels algoritmes d'optimització de funcions objectiu per a facilitar el procés de disseny3. Verificació els resultats obtinguts.

Parallel dictionaries with local rules on AVL and brother trees

We present a set of local rules to deal with dictionaries, having as a main advantage their possible scheduling in a highly synchronized way to get parallel dictionaries on AVLs. Up to now trees used in massively parallel dictionaries needed to have all the leaves at the same depth, such as 2--3 trees. Therefore, it was possible (in insertions and deletions) to reconstruct the tree bottom-up in a very regular fashion, as a pipeline of plane waves moving up. On AVL trees the situation looks different because leaves can have different depth, therefore any wave in a pipeline is highly irregular. To solve this problem we define {\it virtual} plane waves allowing us to develop an EREW dictionary for $k$ keys with $k$ processors and time $O (\log n + \log k)$. Later on we generalize the sePostprint (published version

Algebraic vortex liquid in spin-1/2 triangular antiferromagnets: Scenario for Cs_2CuCl_4

Motivated by inelastic neutron scattering data on Cs_2CuCl_4, we explore spin-1/2 triangular lattice antiferromagnets with both spatial and easy-plane exchange anisotropies, the latter due to an observed Dzyaloshinskii-Moriya interaction. Exploiting a duality mapping followed by a fermionization of the dual vortex degrees of freedom, we find a novel "critical" spin-liquid phase described in terms of Dirac fermions with an emergent global SU(4) symmetry minimally coupled to a non-compact U(1) gauge field. This ``algebraic vortex liquid" supports gapless spin excitations and universal power-law correlations in the dynamical spin structure factor which are consistent with those observed in Cs_2CuCl_4. We suggest future neutron scattering experiments that should help distinguish between the algebraic vortex liquid and other spin liquids and quantum critical points previously proposed in the context of Cs_2CuCl_4.Comment: 4 pages, 3 figures; minor revisions, momenta in Fig. 2 correcte

Searching in AVL Trees in C Language

Tato práce se zabývá vyhledáváním v AVL stromu. Jsou zde vysvětleny principy vyhledávacích metod. Následně je podrobně vysvětlen princip funkčnosti AVL stromu. Cílem je přepsání nerekurzivních algoritmů zapsaných v jazyce Pascal do jazyku C, vytvoření rekurzivních obdob těchto algoritmů a vytvoření aplikace pro animovanou demonstraci těchto operací.This thesis engages in search in AVL tree. There are explained principles of researching methods. Consequently is in detail explained principle of utility AVL tree. The main aims of this thesis are transcribing non-recursive algorithms from Pascal to C language, create recursive analogies of this algorithms and create application for animated show of these operations.

Electron spin relaxation in bulk GaAs for doping densities close to the metal-to-insulator transition

We have measured the electron spin relaxation rate and the integrated spin noise power in n-doped GaAs for temperatures between 4 K and 80 K and for doping concentrations ranging from 2.7 x 10^{-15} cm^{-3} to 8.8 x 10^{-16} cm^{-3} using spin noise spectroscopy. The temperature dependent measurements show a clear transition from localized to free electrons for the lower doped samples and confirm mainly free electrons at all temperatures for the highest doped sample. While the sample at the metal-insulator-transition shows the longest spin relaxation time at low temperatures, a clear crossing of the spin relaxation rates is observed at 70 K and the highest doped sample reveals the longest spin relaxation time above 70 K.Comment: 6 pages, 4 figure