o bjectives: the aim of the present randomized clinical trial was to evaluate marginal bone loss around two types of implants modified at the neck area: nobel active and nobel replace groovy, both manufactured by nobel biocare. materials and methods: a total of 25 nobel active and 21 nobel replace groovy implants were included in the present study. the implants were placed based on the relevant...

According to the DCT structure and principle, the dynamic shifting process of DCT has been analyzed, and the engine and clutch model have been established. The driver intention has been analyzed and distinguished through the fuzzy control theory, on this basis, gear shift rule has been formulated based on driver intention,separately from the power performance and economy performance. Clutch and...

We study the nonlinearity (NL) in the conversion from charge to voltage in infrared detectors (HXRG) for use in precision astronomy. We present laboratory measurements of the NL function of a H2RG detector and discuss the accuracy to which it would need to be calibrated in future spacemissions to perform cosmologicalmeasurements through theweak gravitational lensing technique. In addition, we p...

Heavy-duty vehicle hydrodynamic mechanical automatic transmission shifting operation system was designed, mathematical model of its simplified hydraulic system was established and simulation model of shifting operation system was established with AMESim, the simulation experiment was carried out, then oil pressure curves of each clutch hydraulic cylinder were obtained when giving forward gear o...

We envision a future where Web, mobile, and desktop applications are delivered as isolated, complete software stacks to a minimal, secure client host. This shift imbues app vendors with full autonomy to maintain their apps’ integrity. Achieving this goal requires shifting complexity out of the client platform and replacing the required behavior inside the vendors’ isolated apps. We ported rich,...

Poststroke hemiplegic patients often show altered weight distribution with balance disorders, increasing their risk of fall. Conventional balance training, though powerful, suffers from scarcity of trained therapists, frequent visits to clinics to get therapy, one-on-one therapy sessions, and monotony of repetitive exercise tasks. Thus, technology-assisted balance rehabilitation can be an alter...

Acousto-optic interactions involving propagating phonons can break the time-reversal and frequency-modulation symmetry of light. However, conventional acousto-optic modulators based on bulk materials have frequency bandwidth limited to hundreds megahertz due their large structural sizes. Here, we experimentally demonstrate gigahertz single-sideband modulation an etchless lithium niobate integra...

OBJECTIVES To determine the effect of two different community-based group exercise programs on functional balance, mobility, postural reflexes, and falls in older adults with chronic stroke. DESIGN A randomized, clinical trial. SETTING Community center. PARTICIPANTS Sixty-one community-dwelling older adults with chronic stroke. INTERVENTION Participants were randomly assigned to an agil...