نتایج جستجو برای: اینورتر منبع امپدانسی tz
تعداد نتایج: 19866 فیلتر نتایج به سال:
Let (Y, g) denote a compact, oriented Riemann 3-manifold without boundary. Denote by π : X → Y a principal S1-bundle over Y , and by Z → Y the associated 2-disk bundle. Set c := c1(Z) ∈ H(Y,Z). Denote by tZ ∈ H2(Z, X;Z) the Thom class of Z → Y , by j the inclusion X ↪→ Z and by ζ : Y ↪→ Z the natural inclusion. Using the Thom isomorphism H•(Z) ∪tZ −→ H•+2(Z,X;Z), c = ζ∗tZ , and the long exact c...
Trichopus zeylanicus Gaertn. (Dioscoreaceae) [TZ] leaf is traditionally used as a general health tonic in tribal regions of south India. In the present study the effect of alcoholic extract of TZ leaves was evaluated on acute stress induced anxiety in mice at oral doses of 100mg/kg, 250mg/kg and 500mg/kg. Acute stress was induced by restraint stress method and the stressed rodents were evaluate...
Transition fibres (TFs), together with the transition zone (TZ), are basal ciliary structures thought to be crucial for cilium biogenesis and function by acting as a ciliary gate to regulate selective protein entry and exit. Here we demonstrate that the centriolar and basal body protein HYLS-1, the C. elegans orthologue of hydrolethalus syndrome protein 1, is required for TF formation, TZ organ...
Even with prolonged antiretroviral therapy (ART), many human immunodeficiency virus-infected individuals have <500 CD4(+) T cells/µL, and CD4(+) T cells in lymphoid tissues remain severely depleted, due in part to fibrosis of the paracortical T-cell zone (TZ) that impairs homeostatic mechanisms required for T-cell survival. We therefore used antifibrotic therapy in simian immunodeficiency virus...
در این پایان نامه، طراحی و ساخت یک اینورتر منبع ولتاژ سه فاز (115v, 1500w, 400 hz) pwm ، با کنترل جریان ارائه می شود. برای اینکار، ابتدا، پارامترهای یک اینورتر معرفی می شود، سپس انواع ساختارهای مدار قدرت با توجه به پارامترهای بیان شده، مورد بررسی قرار می گیرند و نقاط ضعف و قوت هر کدام بیان می شود و ضمنا با بررس فیلتر خروجی (lc)، تاثیر هر کدام از المانهای فیلتر بر روی پارامترهای اینورتر تجزیه و ...
Highly miniaturized substrate integrated coaxial (SIC) bandpass filters (BPFs) are presented for new radio (NR) communications. They based on glass-integrated two-post SIC resonators and mixed electromagnetic (EM) couplings that contribute to two poles one transmission zero (TZ) the overall BPF transfer function. The concept can be extended high-order quasi-elliptic configurations shaped by <in...
After more than 7 years of development, the Tianzhou cargo spacecraft (TZ), a space station transfer spacecraft, was successfully launched on 2017 April 20. The TZ is robotic that designed to support China operation by transporting pressurized cargo, unpressurized large propellant, and other supplies. vehicle equipped with crew specifications necessary for astronauts unload cargo. can be utiliz...
اینورتر نه-کلیده با دو مجموعه ترمینال سه‌فاز، یکی از ساختارهای بهبودیافته و قابل جایگزین با مبدل دوازده‌کلیده پشت‌به‌پشت می‌باشد که در سال‌های اخیر مورد توجه زیادی قرار گرفته است. این اینورتر با دو رویکرد متداول مدولاسیون پهنای پالس، فرکانس غیریکسان (DF) و فرکانس یکسان (CF) مورد استفاده قرار می‌گیرد. یکی از معایب استفاده از این روش‌های مدولاسیون، احتمال اتصال کوتاه شدن (Shoot-through) بازوهای ا...
Acetylsalicylic acid (ASA; 0.1-10 mg/kg), indomethacin (IND; 0.1-1.0 mg/kg), and tartrazine (TZ; 0.1-2.0 mg/kg), given intravenously induced dose-dependent increases in carotid-sinus nerve (CSN) activity, accompanied by increases in mean arterial blood pressure (MABP), but only the IND-induced MABP increases were dose-dependent. The MABP and CSN activity responses to all three drugs were not co...
Part I of this paper has been devoted to properties of the different Julia set configurations, generated by the complex map TZ : z′ = z − c, c being a real parameter, −1/4 < c < 2. These properties were revisited from a detailed knowledge of the fractal organization (called “boxwithin-a-box”), generated by the map x′ = x − c with x a real variable. Here, the second part deals with an embedding ...
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