Results 11 to 20 of about 860,720 (284)
Introduction: Intertrochanteric fractures account for approximately half of the hip fractures in the elderly because of the osteoporotic nature of the bone. There are various modalities to treat these fractures. The objective of this study was to compare
Sandeep Gurung, Gopalsagar DC
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هدف از پژوهش حاضر تبیین نقش عزت نفس و پیشینۀ تحصیلی در عملکرد تحصیلی است. به همین منظور از میان دانشجویان دانشگاههای شهر تهران، 522 دانشجو به روش نمونهگیری تصادفی انتخاب شدند.
dc dc
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Optimal PWM control of switched-capacitor DC/DC power converters via model transformation and enhancing control techniques [PDF]
—This paper presents an efficient and effective method for an optimal pulse width modulated (PWM) control of switched-capacitor DC/DC power converters.
Ho, Charlotte Yuk-Fan +4 more
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Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A. +3 more
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Exclusive breastfeeding for the first 6 months, and continuing for at least the first year of life, is strongly recommended. Suboptimal breastfeeding, which is breastfeeding that does not meet these recommendations, is a multifactorial issue.
Cheryl Hawk DC, PhD +4 more
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Polynomial Curve Slope Compensation for Peak-Current-Mode-Controlled Power Converters [PDF]
Linear ramp slope compensation (LRC) and quadratic slope compensation (QSC) are commonly implemented in peak-current-mode-controlled dc-dc converters in order to minimize subharmonic and chaotic oscillations.
Deng, Xu +5 more
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DC/DC converters based on hybrid MMC for HVDC grid interconnection [PDF]
This paper presents a multi-terminal high-power DC/DC converter configuration based on hybrid MMC topology with fault blocking capability for interconnecting HVDC systems.
Xu, Lie, Yao, Liangzhong, Zeng, Rong
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Variant Anterior Digastric Muscle Transfer for Marginal Mandibular Branch of Facial Nerve Palsy
Summary: Marginal mandibular branch of facial nerve (MMBFN) palsy is a common consequence of head and neck surgeries. MMBFN palsy results in paralysis of muscles which depress the inferior lip.
Matthew J. Zdilla, DC
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VLSI hybrid DC-DC regulator [PDF]
Hybrid DC-DC regulators are structures that combine both a linear voltage regulator and a switching DC-DC converter. The main objective of this hybrid topology is to converge, in a single circuit topology, the best of both alternatives: a small voltage output ripple, which is a common characteristic of linear regulator circuits, and good energy ...
Cosp Vilella, Jordi +1 more
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Review of dc-dc converters for multi-terminal HVDC transmission networks [PDF]
This study presents a comprehensive review of high-power dc-dc converters for high-voltage direct current (HVDC) transmission systems, with emphasis on the most promising topologies from established and emerging dc-dc converters.
Ased, Grain Philip +4 more
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