These notes will be rather informal in many places. For more precision, refer to Lectures on Polytopes by Günter Ziegler [Zie95], Convex Polytopes by Branko Grünbaum [Grü67], An Introduction to Convex Polytopes by Arne Brøndsted [Brø83], and Convex Polytopes and the Upper Bound Conjecture by Peter McMullen and Geoffrey Shephard [MS71]. See also the handbook papers [BL93, KK95] We will be studyi...

A facile synthetic strategy is developed to prepare mono-dispersed SnO2 particles within three-dimensional porous carbon frameworks by utilizing the adsorption properties of metal-organic frameworks. This composite exhibits a high reversible capacity of 900 mA h g(-1) at 100 mA g(-1) after 50 cycles, with a stable capacity retention of 880 mA h g(-1) at 100 mA g(-1) even after 200 cycles.

A room temperature hybrid electrolyte based lithium-sulfur cell was successfully cycled with an excellent coulombic efficiency of 100%. The initial discharge specific capacities of up to 1528 mA h g(-1), 1386 mA h g(-1) and 1341 mA h g(-1), respectively, at C/20, C/5 and C/2 rates were realized and remained at 720 mA h g(-1) after 40 cycles at the C/5 rate.

Flower-like antimony sulfide structures were prepared by a simple and easy polyol reflux process. When tested as an anode for sodium ion batteries, the material delivered a high reversible capacity of 835.3 mA h g(-1) at 50 mA g(-1) after 50 cycles and maintained a capacity of 641.7 mA h g(-1) at 200 mA g(-1) after 100 cycles. Even up to 2000 mA g(-1), a capacity of 553.1 mA h g(-1) was obtaine...

Wearable flexible electronic strain sensor devices have developed rapidly in recent years due to their potential capacity detect human motion various situations. However, it still remains a big challenge fabricate sensors with high sensitivity over wide workable range. In order meet this challenge, new type of based on elastomer/carbon nanotube composite fiber is reported work. Elastomer fibers...

In this article, the structure and electrochemical performance of sodiated iron phosphate (FePO4) synthesized by the micro-emulsion technique have been investigated by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) and electrochemical measurement. The results reveal that amorphous FePO4 could be transformed into crystallite sodium iron phosphate (NaFePO4) duri...

Insufficient effort responding (IER; Huang, Curran, Keeney, Poposki, & DeShon, 2012) to surveys has largely been assumed to be a source of random measurement error that attenuates associations between substantive measures. The current article, however, illustrates how and when the presence of IER can produce a systematic bias that inflates observed correlations between substantive measures. Not...

Purpose This study investigates the barriers and drivers of using green methods technologies (GMTs) in supportive educational buildings (SEBs) South Africa, assesses their impact on circular economy (CE) achieving net-zero carbon goals. While there has been extensive literature building technologies, is limited research GMT SEBs, as well Design/methodology/approach adopts an interpretivist appr...

It is a challenge to identify each phase in multi-component polymer system and uniquely determine the interfacial properties between different phases. Using atomic force microscopy nanomechanical mapping (AFM-NM) AFM-based infrared spectroscopy (AFM-IR), we phase, visualize structural developments, blend of three polymers: high-density polyethylene (HDPE), polyamide (PA6) poly(styrene-b-ethylen...