نتایج جستجو برای: dme synthesis
تعداد نتایج: 410739 فیلتر نتایج به سال:
به منظور بهبود عملکرد راکتورهای لوله ای صنعتی، ایده راکتورهای کروی جهت بهبود افت فشار و افزایش تولید محصولات ارائه شده است. با توجه به این موضوع، راکتورهای کروی بستر ثابت با جریان شعاعی و محوری برای آب زدایی متانول بررسی شده است. در راکتور کروی با جریان محوری، خوراک متانول از بالا وارد راکتور شده و به صورت محوری در طول راکتور جریان می-یابد. کاتالیست ها بین دو صفحه سوراخ شده در بالا و پایین راکت...
In this thesis, we consider the interference cancellation problem for the broadband digital aeronautical communication system. We investigate the L-band digital aeronautical communication system (L-DACS) in the presence of distance measuring equipment (DME) interference. First, we describe the OFDM receiver of the LDACS1. In addition, we discuss the impacts of the DME spectrum on the subcarrier...
OBJECTIVE To assess the cross-sectional association of thiazolidinediones with diabetic macular edema (DME). METHODS The cross-sectional association of DME and visual acuity with thiazolidinediones was examined by means of baseline fundus photographs and visual acuity measurements from the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial. Visual acuity was assessed in 9690 par...
Abstract Sorption enhanced gasification (SEG) is a promising technology for producing gas derived from renewable feedstock to be used in biofuel synthesis processes. As response the growing need fuels, an SEG reactor design was developed industrial-scale dimethyl ether (DME) production. A 100 MW th scale concept wood pellets as created by model-based approach. Thus, 1D modeling tool coupled cir...
During Drosophila melanogaster dorsal closure, lateral sheets of embryonic epidermis assemble an actomyosin cable at their leading edge and migrate dorsally over the amnioserosa, converging at the dorsal midline. We show that disappearance of the homophilic cell adhesion molecule Echinoid (Ed) from the amnioserosa just before dorsal closure eliminates homophilic interactions with the adjacent d...
This paper presents new single-layer, i.e., planarembeddable, clock tree constructions with exact zero skew under either the linear or the Elmore delay model. Our method, called Planar-DME, consists of two parts. The first algorithm, called Linear-Planar-DME, guarantees an optimal planar zero-skew clock tree (ZST) under the linear delay model. The second algorithm, called Elmore-Planar-DME, use...
Complexes [L2Fe][Li(DME)]2, 1(DME), {[L2Fe][Na2(DME)3]}?, 2(DME) and [L2Fe][K(DME)2]2, 3(DME) were synthesized by deprotonation of LH2 (LH2=O(SiPh2OH)2) with the respective alkali metal tert-butoxides followed recrystallization from DME. It turned out that upon crossing over Li+ via Na+ to K+ counterions structures high-spin iron(II) complexes are increasingly distorted a square planar towards ...
Dimethyl ether (DME) is a synthetically produced alternative fuel to diesel-based and could be used in ignition diesel engines due increasing energy demand. DME considered extremely clean transportation green because it has high cetane number (around 60), low boiling point (−25 °C), oxygen amount (35 wt%) which allow fast evaporation higher combustion quality (smoke-free operation 90% fewer NOx...
The nature of the vitreoretinal interface in conditions like diabetic macular edema (DME) remains incompletely understood. Furthermore, it is not clear what the role of pharmacological enzymatic vitreolysis will play in cases of vitreomacular traction (VMT) associated with macular disease like DME. We describe the spontaneous resolution of VMT in 2 patients with DME. As both surgical and pharma...
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