Abstract Dynamic covalent bond-based shape memory polymers (DCB-SMPs) are one of most important SMPs which have a wide potential application prospect. Different from common strong bonds, DCBs own relatively weak bonding energy, similarly to the supramolecular interactions noncovalent and can dynamically combine dissociate these bonds. DCB-SMP solids, be designed respond for different stimuli, p...

The molecular signals that determine the position and timing of the cleavage furrow during mammalian cell cytokinesis are presently unknown. We have studied in detail the effect of dihydrocytochalasin B (DCB), a drug that interferes with actin assembly, on specific late mitotic events in synchronous HeLa cells. When cleavage furrow formation is blocked at 10 microM DCB, cells return to interpha...

The utilization of simulation in the design of systems combining different parts (heterogeneous systems) contributes with the validation, verification, and observation of the behavior of these parts (individually) and of the cooperation between them. The differences between the parts (elements) that compose the model of representation (of a system) make these tasks more complex due to three mai...

Abstract It is foreseeable that the BeiDou navigation satellite system with global coverage (BDS-3) and (regional) (BDS-2) will coexist in next decade. Care should be taken to minimize adverse impact of receiver-related biases, including inter-system biases (ISBs), differential code (DCB), phase (DPB) on positioning, navigation, timing (PNT) provided by systems (GNSS). Therefore, it important a...

اهداف: پژوهش حاضر، تلاش می‌کند با بررسی عوامل کلیدی روند بهره‌وری سازمانی در پیشایندها و پسایندهای اجرای خط‌مشی مدیریت سرمایه انسانی، پیش‌ران‌های بدیل ارتقاء را از میان آنها مشخص نماید.طراحی/ روش‌شناسی/ رویکرد: این پژوهش، آمیخته نوع پژوهش‌های کاربردی است. جامعه آماری بخش کیفی ۱۴ نفر خبرگان علمی اجرایی به‌منظور انجام مصاحبه؛ کمی ۲۷۰ کل ۹0۹ نفری بر اساس فرمول کوکران برای اعتبارسنجی یافته‌های به‌ص...

The role of the caspases, a newly discovered group of cysteine proteases, was investigated in a model of hypoxia-induced necrotic injury of rat renal proximal tubules. An assay for caspases in freshly isolated rat proximal tubules was developed. There was a 40% increase in tubular caspase activity after 15 min of hypoxia in association with increased cell membrane damage as indicated by a three...

The aim of this study is to evaluate the effect processing temperature on interfacial failure glass/Elium® 150 composites. vacuum assisted resin transfer molding technique (VARTM) was used manufacture composites at three different process temperatures: room (24℃), 50℃ and 80℃. interlaminar shear strength, mode I II fracture toughness laminates were determined by performing short beam (SBS), dou...

Abstract The {0001} basal plane delamination dominating the crack-wake bridging in MAX phases at a bulk scale has been investigated by studying small-scale fracture of Ti 3 SiC 2 . In situ micro-double cantilever beam (DCB) tests scanning electron microscope were used to grow stable crack along plane, measure energy, and study propagation mechanism nanoscale. results show that energy (10–50 J/m...