نتایج جستجو برای: breeze regimes during january and may
تعداد نتایج: 17085913 فیلتر نتایج به سال:
The time dependent reactions of an isothermal spherically symmetric stellar atmosphere to perturbations of the external (interstellar) pressure are analysed by means of computer simulations. The system is seen to evolve, through the phases of wind, breeze, accretion and back, according to an hysteresis type cycle with two catastrophe points: the value of the external pressure relative to a stat...
according to cheng (1999), in recent esl/efl literature, asian (especially east asian) learners of english as a foreign/second language have been arguably reported as reticent and passive learners. the most common allegations are that these students are reluctant to participate in classroom discourse; they are unwilling to give responses; they do not ask questions; and they are passive and over...
abstract this study examined the relationship between noticing pronunciation and the improvement pronunciation by administering a 50 item story, as proficiency- test in order to investigate the effectiveness of noticing pronunciation on the improvement of pronunciation. accordingly 60 qualified students were selected and assigned to the two groups of experimental and control randomly, each gr...
this study investigates the effect of teacher’s repetition as an input enhancement technique in explicit teaching of vocabulary items on efl learners’ later retrieval. to this end, 66 persian speaking english learners, aged 18 - 29, homogenized through a standard proficiency test (opt), were chosen and put into two experimental and control groups, each 33 learners. general service list (gsl), a...
the present study aimed to investigate representation of discourse markers and metadiscourse markers in conversations and readings of general elt coursebook series used in the language centers of iran. to this aim, four elt coursebooks popularly taught in language centers of this country were analyzed based on fung and carter’s (2007) framework regarding discourse markers and hyland’s (2005) fr...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
The article presents results of the research on use chars produced during pyrolysis residual biomass as a substitutional fuel in iron ore sintering process. Such an approach allows to implement circular economy and industrial symbiosis steel branches. effect substitution conventional coke breeze used final sinter quality emission was examined. With regard productivity, consumption, properties i...
under condition of limited water supply, determination of minimum water requisite to keep potential yield should be considered as an important target. with this respect, a field experiment was conducted at research farm of university college of agriculture and natural resources, university of tehran, in 2012-2013, karaj, iran. the experiment was conducted in a split plot, based on randomized co...
A professional TV crew traveled to Gulf Breeze, Florida on two occasions in the spring of 1992 at a time when sightings were occurring on a weekly basis. On each occasion anomalous lights were observed and videotaped passing through the Gulf Breeze skies. This paper reports briefly on the first sighting and concentrates on the analysis of the second sighting when the TV crew used a special "hig...
A regional model for atmospheric photochemistry and particulate matter is used to predict the fate and transport of five trace metals: lead, manganese, total chromium, nickel, and cadmium over the continental United States during January and July 2001. Predicted concentrations of the metals are compared to observations. Lead predictions have the lowest mean differences with observations and the...
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