The most important link in modern farming systems is the protection of crops from weeds. Only by taking effective measures to reduce weediness one can get a high yield cultivated and high-quality products. On field or plot with all other agricultural activities aimed at increasing crop yields will be ineffective. When planning for weed control, grower must give priority preventive organizationa...

Conservation Reserve Program Conservation Practice 33 (CP33: Conservation Buffers for Upland Birds) provides habitat for grassland birds in agriculture-dominated landscapes. However, landscape context and adjacency of other land covers may influence colonization, occupancy, and reproductive performance of breeding grassland birds in buffers. Our objective was to determine how edge effects influ...

We continue a study of the equivalence class induced on Sn when one is permitted to replace a consecutive set of elements in a permutation with the same elements in a different order. For each possible set of allowed replacements, we characterise and/or enumerate the set of permutations reachable from the identity. In some cases we also count the number of equivalence classes. Résumé. Nous étud...

A new block matching algorithm (BMA) especially appropriate for large search areas is proposed. Motion vectors of causally adjacent blocks can be credible motion vector candidates in continuous motion fields. However, they are not helpful for searching complex or random motions. In order to remedy this problem, we propose a new two-step hierarchical block matching algorithm using spatial correl...

We demonstrate the use of multiple atomic-level Rydberg-atom schemes for continuous frequency detection radio (RF) fields. Resonant RF fields by electromagnetically-induced transparency and Autler-Townes (AT) in Rydberg atoms is typically limited to frequencies within narrow bandwidth a transition. By applying second field resonant with an adjacent transition, far-detuned can be detected throug...

We have developed a quite stringent method in selectivity to ionize the low angularmomentum (l) states which lie below and above the adjacent manifold in highly excited Rb Rydberg atoms. The method fully exploits the pulsed field-ionization characteristics of the manifold states in high slew-rate regime: Specifically the low l state below (above) the adjacent manifold is firstly transferred to ...

Linguists often represent the relationships between words in a collection of text as an undirected graph G = (V,E), were V is the vocabulary and vertices are adjacent in G if and only if the words they represent co-occur in a relevant pattern in the text. Ideally, the words with similar meanings give rise to the vertices of a component of the graph. However, many words have several distinct mea...