نتایج جستجو برای: twin satellites launched in march 2002
تعداد نتایج: 17005010 فیلتر نتایج به سال:
Differential code biases (DCBs) are important parameters in GNSS (Global Navigation Satellite System) applications such as positioning as well as ionosphere remote sensing. In comparison to the conventional approach, which utilizes ground-based observations and parameterizes global ionosphere maps together with DCBs, a method is presented for GPS and BeiDou system (BDS) satellite DCB estimation...
Constraints to maximal productivity from twinning in beef cattle include increased incidence of dystocia and retained placenta, longer postpartum interval, and lower conception rate. Incidence and cause(s) of the shorter gestation length and of the increased retained placenta and dystocia associated with twinning were evaluated for 3,370 single and 1,014 twin births produced in a population of ...
this essay evaluates the major methodological trends in research at the iranian academic educational journals based on scott’s methodological criticism. therefore, the present study sought to examine a small part of iranian educational research in the context of scott's taxonomy, including nine major fallacies: epistemic, homogeneity, causal, essentialist, value free knowledge, prospective, red...
Spontaneous pneumothorax is a medical condition that potentially may be dangerous. Although several methods for management of this problem have been propounded, there is a great disagreement among the specialists about how to treat it and when more invasive treatments are indicated.Materials and Methods: This study carried out in two phases. In first phase, 26 patients who had admitted to Imam ...
twin reversed arterial perfusion (trap) sequence is a syndrome with poor prognosis, seen only in monochorionic monozygotic twin pregnancies. the incidence is one in 35.000 births and one in 100 monozygotic twin pregnancies. it is characterized with a recipient fetus exhibiting lethal anomalies including acardia and a pump fetus. mortality is usually due to heart failure or premature labor cause...
Background: The purpose of this study is to determine the incidence of electrolyte and ABG abnormalities in infants with HPS and also we evaluate other parameters of the study. Materials and Methods: This descriptive study covers 161 infants with HPS hospitalized in children Medical center of Tehran university underwent surgical repair from march 1996 to march 2002 . Results & Conclusion: T...
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