نتایج جستجو برای: striction line
تعداد نتایج: 411741 فیلتر نتایج به سال:
with the growth in customers’ demand diversification, mixed-model u-lines (mmul) have acquired increasing importance in the area of assembly systems. there are generally two different approaches in the literature for balancing such systems. some researchers believe that since the types of models can be very diverse, a balancing approach without simultaneously sequencing of models will not yield...
background; work-related musculoskeletal disorders (wmsds) may involve all parts of the body, and have been a worldwide problem. employed women are two to five times more likely to report such problems, and assembly lines suspected to induce more wmsds because of high rate of repetitive motions. methods;the aim of this study to determine the prevalence of wmsds in women workers of an automobile...
در مطالعه¬ی حاضر برای اولین بار، یک روش سریع، ساده، کارآمد و دوستدار محیط زیست، به نام پراکندگی ماتریکس فاز جامد میکرو قرار داده شده در مسیر (in-line mmspd)، برای اندازه¬گیری همزمان هفت رنگ سودان (شامل سودان i، ii، iii، iv، نارنجی g، سیاه b و قرمز g)، در ادویه¬جات فلفل قرمز، پاپریکا، سماق، زعفران، زردچوبه، کاری و هفت¬ادویه، توسط دستگاه کروماتوگرافی مایع با کارایی بالا، توسعه داده شد. در این روش...
با پدیده نوظهور اینترنت و گسترش روزافزون شبکه های داده نیاز به سوئیچ های با ظرفیت بالا بیش از پیش احساس می گردد. اغلب سوئیچهای پرظرفیت از نوع سوئیچ های با بافر ورودی حافظه مشترک برای نیل ب سرعت بالا می باشند. دسته اول این سوئیچها، بافر ورودی از مشکل hol(head of line blocking) رنج می برند که بازدهی آنها را به 6/58درصد کاهش می دهد.
background: both azadirachtin and rotenone, two botanical pesticides have shown inhibit the growth of cultured insect cells. the inhibitory effect of rotenone on cell growth is through disruption of electron transport chain, but exact mechanism of effect of azadirachtin on growth of cell is unknown. this study was carried out to compare the effect of these phytochemical on oxygen consumption by...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
background: antigen b (agb) is frequently used for immuno-diagnosis of hu-man cystic echinococcosis (ce). echinococcus granulosus agbs show a high degree of genetic variability in different hosts or in different ce endemic areas. the present study aimed to evaluate the genetic polymorphisms of encoding antigen b2 gene (agb2) among different iranian isolates of e. granulosus. methods: a total of...
background: most cancer cells become resistant to anti-cancer agents. in the last few years, a new approach for targeted therapy of human cancer has been developed using immunotoxins which comprise both the cell targeting and the cell killing moieties. methods: in the present study, the recombinant shiga toxin a1 subunit fused to human granulocyte-macrophage colony stimulating factor (a1-gm-csf...
in this syudy a continuous bovine kidney cell line derived from a primary bovine kidney cells was established for the first time in iran. the cells were originating from two-day-old normal male calf of holstein breed. the cell cultures were continuously passaged following complete proliferation of primary cells. the specific properties or characteristics of the cell were defined using cytogene...
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