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this paper presents a modified 32-bit rom-based direct digital frequency synthesizer (ddfs). maximum output frequency of the ddfs is limited by the structure of the accumulator used in the ddfs architecture. the hierarchical pipeline accumulator (hpa) presented in this paper has less propagation delay time rather than the conventional structures. therefore, it results in both higher maximum ope...

Implicit functions characterized by the zero-set of polynomial-based algebraic equations and other commonly-used analytic equations are extremely powerful in graphics, geometric design, and visualization. But the potential of implicit functions is yet to be fully realized due to the lack of flexible and interactive design techniques. This paper presents a haptic sculpting system founded upon sc...

Undergoing revolution in Wireless Sensor Networks, which is made up of batterypowered nodes empowered with a multitude of sensing modalities, promises to have a significant impact throughout society. Significant improvement and advancement in processor design, computing in battery technology still lag behind, making energy resource the major bottleneck in Wireless Sensor Network. Limited energy...

Abstract The large consumption of nonrenewable energy has caused shortages and environmental climate problems, improper food storage a amount waste. To solve the problem shortage waste in grain transportation, photovoltaic direct-drive refrigeration compartment based on apple transportation is designed. design adopts 15-foot uses lightweight crystalline silicon PV modules to reduce overall weig...

Constructivist learning theory suggests that important components of the learning process are learner interaction and discourse. The nature of health education is such that emphasis is placed on discussion of health attitudes, beliefs, values, and behaviours as a key instructional strategy. It follows then, that health education learning environments designed using constructivist learning princ...

Recent trends in website design have an impact on methods used for web data extraction. Many existing methods rely on structural analysis of web pages and, with the introduction of CSS, table-based layouts are no longer used, while responsive design means that layout and presentation are dependent on browsing context which also makes the use of visual clues more complex. We present DeepDesign, ...

In this paper we present a novel, interactive shape modeling technique: Dynamic Implicit Solid Modeling, which unifies volumetric implicit functions and powerful physics-based modeling. Although implicit functions are extremely powerful in graphics, geometric design, and shape modeling, the full potential of implicit functions is yet to be fully realized due to the lack of flexible and interact...