3D resistive RAM cell design for high-density storage class memory—a review

In this article, we comprehensively review recent progress in the ReRAM cell technology for 3D integration focusing on a material/device level. First we briefly mention pioneering work on high-density crossbar ReRAM arrays which paved the way to 3D integration. We discuss the two main proposed 3D integration schemes—3D horizontally stacked ReRAM vs 3D Vertical ReRAM and their respective advantages and disadvantages. We follow with the detailed memory cell design on important work in both areas, utilizing either filamentary or interface-limited switching mechanisms. We also discuss our own contributions on HfO₂-based filamentary 3D Vertical ReRAM as well as TaO_x/TiO₂ bilayer-based self-rectifying 3D Vertical ReRAM. Finally, we summarize the present status and provide an outlook for the nearterm future.     

A new method for computing fuzzy functional dependencies in relational database systems

In this paper, we present a new method for computing fuzzy functional dependencies between attributes in fuzzy relational database systems. The method is based on the use of fuzzy implications. A literature analysis has shown that there is no algorithm that would enable the identification of attribute relationships in fuzzy relational schemas. This fact was the motive for development a new methodology in the analysis of fuzzy functional dependencies over a given set of attributes. Solving this, not so new problem, is not only research challenge having theoretical importance, but it also has practical significance. Possible applications of the proposed methodology include GIS, data mining, information retrieval, reducing data redundancy in fuzzy relations through implementation of logical database model, estimation of missing values etc.     

Noise Analysis by iso-dbA Mapping

This paper presents a method for constructing a critical iso-dbA contour map on a plant layout at both maximum and minimum sound levels. The resultant map identifies areas in the plant that are within noise level standards, those that are in excess of noise level standards, and those which fluctuate above and below the critical noise level. A method is then presented for determining the “noise exposure factor” for those areas that fluctuate above and below the critical noise level. This factor, when combined with the critical iso-dbA map, results in a compliance map. The final compliance map defines areas in the plant that are within noise level standards and those areas which exceed noise level standards.     

The enteric drained pancreas transplant: another potential source of gastrointestinal bleeding

With most combined kidney and pancreas transplants the transplant pancreatic exocrine secretions are managed with urinary bladder drainage. Because of the associated metabolic and infectious complications, many pancreatic transplants require later conversion to enteric drainage, and the trend in this country is now toward primary enteric drainage. Unlike with urinary bladder drainage when direct cystoscopy can be performed, a disadvantage with enteric drainage is that problems such as bleeding from a transplanted pancreas and attached duodenal segment are not easily evaluated. A case of a cytomegalovirus-related bleeding ulcer in an enteric drained pancreas is presented, along with a review of the possible diagnostic evaluation.     

Pore-volume and surface area in microporous–mesoporous solids

To show the correct evaluation of pore-volume and surface area in microporous–mesoporous samples a series of mechanical mixtures of microporous zeolite NaY and mesoporous γ-alumina was prepared. The nitrogen adsorption isotherms (77 K) were analyzed by the modified (three parameters) BET equation and compared with the independent textural information obtained (a) from t-plots (with the standard isotherm of nonporous α-alumina and the standard isotherms of Lecloux–Pirard); and (b) by subtracting the isotherm of the parent NaY from mixed sample isotherms.For illustration, the failure of the classic (two-parameter) BET equation for samples of that type was demonstrated.     

Using SMS for Communication with IoT Devices

Mobile Networks and Applications - This paper is in the context of Smart Cities and Internet of Things (IoT). We proposed a novel approach in communication of IoT devices via SMS messages. This can...     

钢丝骨架材料的粘合性能

钢丝骨架材料粘合层的质量取决于初始粘合强度、橡胶-钢丝粘合强度保持率、热老化、盐老化、湿老化和蒸汽老化等因素。钢帘线厂确定黄铜／青铜组成和分布、钢丝拉拔润滑剂、磷化作用和帘线几何形状等帘线参数。轮胎设计人员确定钢丝帘线附胶胶料的配方。生胶、炭黑、硫化体系和粘合剂的品种和质量是影响粘合性能的主要因素。