نتایج جستجو برای: were placed a suitable interval each other selected plants included phragmites
تعداد نتایج: 13914623 فیلتر نتایج به سال:
Background & Aims of the Study: Aquatic macrophytes, given their rapid growth and high bio mass production, great potential to accumulate heavy metals in their organs. Phragmites australis as a hyper-cumulative plant plays an important role in the bioremediation. The Badavar River of Noorabad, Lorestan province, is exposed to urban wastewater and agricultural runoffs. In order to heavy metals (...
abstract pragmatics is the study of communicative action in its sociocultural context. communicative action includes not only using speech acts (such as apologizing, complaining, complimenting, and requesting), but also engaging in different types of discourse and participating in speech events of varying length and complexity. the present study aimed to investigate the assessment of pragm...
in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...
Many mechanisms of invasive species success have been elucidated, but those driving cryptic invasions of non-native genotypes remain least understood. In one of the most successful cryptic plant invasions in North America, we investigate the mechanisms underlying the displacement of native Phragmites australis by its Eurasian counterpart. Since invasive Phragmites ’ populations have been especi...
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
Multipurpose use of rangelands is one of the new challenges facing rangeland users, according to which grazing pressure in rangelands can be reduced and an important step can be taken to increase the welfare and empowerment of rangelands, preserve ecosystems and improve ecosystem services related to them. Therefore, the present study was conducted to evaluate the capability of mountain rangelan...
This study aimed to investigate the performance of French Type Constructed Wetlands (FTCW) at a pilot scale level in real field conditions for sewage treatment India. The plant consisted hybrid wetlands two stages, vertical and horizontal sub-surface flow types. first stage comprised three compartments, vegetated with different native plants (phragmites australis, canna indica, sagittaria), ope...
citrus mealy bug, planococcus citri (risso)is one of the most common and well knownpest insects of ornamentals. coleus, solenostemon scutellarioides (l.)codd is a suitable host ofthe mealybugs. mealybug destroyer, cryptolaemus montrouzieri mulsant (coleoptera:coccinellidae) is a polyphagous predatory coccinellid, employed in biological controlprograms against citrusmealy bug. the present work w...
Introduction: The purpose of this in vitro study was to introduce the fiber reinforced composite bridges and evaluate the most suitable site and position for placement of fibers in order to get maximum strength. Methods: The study included 20 second premolars and 20 second molars selected for fabricating twenty fiber reinforced composite bridges. Twenty specimens were selected for one fiber la...
Each year, billions of tons agricultural waste are generated globally. Egypt, being an agriculturally centered nation, faces significant challenges in disposing this and coping with self-germinating plants that negatively impact agriculture. The common practice among farmers is to burn the waste, which exacerbates environmental concerns. With global shift towards eco-friendly concrete, study ex...
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