Stereolithography is a solid freeform technique (SFF) that was introduced in the late 1980s Although many other techniques have been developed since then, stereolithography remains one of the most powerful and versatile of all SFF techniques It has the highest fabrication accuracy and an increasing number of materials that can be processed is becoming available In this paper we discuss the characteristic features of the stereolithography technique and compare it to other SFF techniques The biomedical applications of stereolithography are reviewed, as well as the biodegradable resin materials that have been developed for use with stereolithography Finally, an overview of the application of stereolithography in preparing porous structures for tissue engineering is given

A review on stereolithography and its applications in biomedical engineering

Powerful medicinal properties have been recorded for Zingiber officinale, commonly known as ginger. All of these medicinal activities have been compiled with 99 references to the present status of the plant in the literature. Volatile components and the presence of trace metals are included. In addition, details of individual medicinal activities are given and the molecular structures of identified organic metabolites and their synthesis are described.

Ginger: An Ethnomedical, Chemical and Pharmacological Review

Sensors and Actuators A: Physical

Publisher Summary Besides the many species representative of the major eukaryotic algal phyla, the freshwater phytoplankton comprises a number of cyanobacteria (or blue-green algae) These aggregations have earned recognition in their own collective term, “water blooms” This chapter reviews the aspects of ecology of planktonic cyanobacreria in relation to the factors governing their buoyancy, population dynamics, and perennation in natural limnetic environments The buoyant properties of cyanobacteria are assessed in relation to the Stokes equation, drawing distinctions between the differential contributions of size, density, and form resistance among individual genera Density is altered through the erection or collapse of gas vesicles, their dilution by growth and through the maintenance of glycogen ballast The outcome of buoyancy-controlled movements in natural fields of turbulent mixing is described in empirical terms The chapter also reviews the growth requirements of cyanobacteria with respect to temperature, light, and nutrients together with their responses to deficiencies of supply The outcome of interactions between buoyancy regulation and limiting resources are proposed in a series of hypothetical model environments The circumstances under which excess buoyancy is acquired and expressed in surface bloom formation are re-examined Adaptations for perennation and re-establishment of populations after bloom formation or other adverse conditions are reviewed The evolutionary strategies of planktonic cyanobacteria are deduced

Cyanobacterial Water-Blooms

The history of tomato: from domestication to biopharming.

Fused Deposition modeling process parameters optimization and effect on mechanical properties and part quality: Review and reflection on present research

Tomato expressing Cry1A(b) insecticidal protein from Bacillus thuringiensis protected against tomato fruit borer, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) damage in the laboratory, greenhouse and field

In the present research work, AA7075 composite reinforced with silicon carbide particles has been fabricated using Friction stir processing (FSP). The silicon carbide particles having a size of 40 μm were placed in grooves of length 160 mm, width 2 mm, depth 3.5 mm, that were generated on the AA7075 plate. The square pin tool is utilized for fabricating the composite at two different rotational speed i.e. 700 and 1000 rpm. Effect of processing, particle addition and tool rotational speed is analyzed on mechanical and wear properties of the material. On friction stir processing the microhardness value and elongation of the material increased. Reinforcement addition contributed to decrease in ductility and tensile strength while on the contrary microhardness and wear resistance of the material improved. Tool rotational speed showed a direct relation with the tested mechanical and wear properties. Adhesive wear was the prominent wear mechanism and Fe layer formation was observed on the worn surface, contributing to increased wear resistance. These fabricated composites can find vast application in industries like automotive, defence and aerospace.

https://iopscience.iop.org/article/10.1088/2053-1591/abd89d/pdf

Mechanical and wear performance of Al/SiC surface composite prepared through friction stir processing

Additive manufacturing (AM) is a method in which three-dimensional structures are successively laid down to create a solid object. The inherent advantages of AM technology are successfully drafted ...

Harish Kumar

Papers

Fused Deposition modeling process parameters optimization and effect on mechanical properties and part quality: Review and reflection on present research

Tomato expressing Cry1A(b) insecticidal protein from Bacillus thuringiensis protected against tomato fruit borer, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) damage in the laboratory, greenhouse and field

Mechanical and wear performance of Al/SiC surface composite prepared through friction stir processing

Additive Manufacturing Enabled Supply Chain in Combating COVID-19

Wear assessment of 3-D printed parts of PLA (polylactic acid) using Taguchi design and Artificial Neural Network (ANN) technique