نتایج جستجو برای: c01
تعداد نتایج: 186 فیلتر نتایج به سال:
A transient two-dimensional model is developed and numericaUy solved to specifically investigate the effects of CNC motion and workpiece boundary on cutting front mobility and temperature in reactive-gas assisted C01 laser cutting. Co-ordinated motion systems must ramp up and down to their desired speeds, and therefore the initial actuator acceleration is considered for its effect on the cuttin...
BACKGROUND AND OBJECTIVES The Escherichia coli strains are greatly important in nosocomial and community acquired infections. The aim of this study was to determine the transmission of bacterial infections using genetic analysis. MATERIALS AND METHODS Two hundred and thirty Escherichia coli strains, isolated from different clinical samples, were characterized by enterobacterial repetitive int...
با توجه به روند نوگرایی سریع، در شهر اصفهان نیز همچون اکثر شهرهای کشور میتوان شاهد ناکارآمدی و فرسودگی بافتها بود. از این رو، توسعه نوسازی بافتهای فرسوده باید از اهداف اصلی نوسازی شهر اصفهان باشد. مهمترین قدم برای اجرای موفقیتآمیز پروژههای مسکنسازی را میتوان تجزیه و تحلیل عمیق ابعاد گسترده مسکن و شناخت چگونگی رتبهبندی عناصر مختلف یک واحد مسکونی توسط مصرفکنندگان دانست. از آنجا که ویژگی...
this paper investigates the effects of globalization, (export+import)/gdp, tariffs, total factor productivity and per capita capital stock on industrial profitability. we employ the price-wage gap as a proxy for profitability. data used has been made of pooled mean group estimation of dynamic heterogeneous panel, a technique recently developed in dynamic panel data literature. our results show ...
in this paper using catastrophe theory, we investigate non-smooth changes in tehran stock exchange. stock market crashes bring not only panic among investors, but also in deeper market lead to recession and decrease in consumer's confidence. as catastrophe theory is strong tool in explaining nonlinear phenomena, by applying stochastic cusp catastrophe model we examine sudden change in tehr...
energy as an important production factor has significant effects on economic growth. identifying the relationship between energy and economic growth can help to improve governmental energy policies. applying ardl and ecm methods, this paper examines the longrun and shortrun causality relationships between (1) energy consumption and economic growth and (2) energy consumption and employment in va...
Abstract. Homthong M, Kaewpuk W, Yamsuan S, Thongsima A, Mokkapan K, Pikulthong V. 2022. Screening of indole-3-acetic acid PGPB from three agricultural systems at Nakhon Pathom, Thailand. Biodiversitas 23: 5935-5941. Plant growth-promoting bacteria (PGPB) are associated with plant roots and enhance growth via a variety mechanisms, including fixation atmospheric nitrogen, solubilization phosphor...
BACKGROUND The development of cost-effective prophylactic strategies to prevent leishmaniasis has become a high-priority. The present study has used the phage display technology to identify new immunogens, which were evaluated as vaccines in the murine model of visceral leishmaniasis (VL). Epitope-based immunogens, represented by phage-fused peptides that mimic Leishmania infantum antigens, wer...
In this paper we provide a unified methodology for conducting likelihood-based inference on the unknown parameters of a general class of discrete-time stochastic volatility (SV) models, characterized by both a leverage effect and jumps in returns. Given the nonlinear/non-Gaussian state-space form, approximating the likelihood for the parameters is conducted with output generated by the particle...
هدف از این مطالعه بررسی روند مصرف و محاسبه شاخص‌های کارایی انرژی و تحلیل اقتصادسنجی مصرف انرژی در تولید غلات آبی کشور (گندم، جو، برنج و ذرت) در طی دوره زمانی 87-1365 می‌باشد. پس از تعیین مقدار مصرف هر نهاده در تولید یک هکتار از محصول، هر نهاده مصرفی به هم‌ارزی انرژی آن تبدیل شد. نتایج نشان دادند روند مصرف انرژی در تولید غلات مورد بررسی در دوره یاد شده روند صعودی داشته است و مقدار کل انر...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید