Humidity sensors have been extensively used in various fields, and numerous problems are encountered when using humidity sensors, including low sensitivity, long response and recovery times, and narrow humidity detection ranges. Using graphene oxide (G-O) films as humidity sensing materials, we fabricate here a microscale capacitive humidity sensor. Compared with conventional capacitive humidit...

Imaging of DNA, keyhole limpet hemocyanin, mouse monoclonal IgG, and glucose oxidase on a mica substrate has been accomplished by scanning electrochemical microscopy with a tungsten tip. The technique requires the use of a high relative humidity to form a thin film of water on the mica surface that allows electrochemical reactions to take place at the tip and produce a faradaic current (approxi...

Six controlled-release personal-use topical insect/arthropod repellent formulations of diethylmethylbenzamide (deet) were evaluated in an environmental chamber on volunteers for repellency against the mosquitoes Aedes aegypti and Ae. taeniorhynchus under three climatic regimens: basic variable high humidity (tropical environment), basic constant high humidity (forested and wet environment) and ...

Fungal pathogens are liable for a wide part of damages in agriculture economy. In the present research a survey was made to study occurrence of Sclerotinia species the causal agent of stem rot in Cauliflower, through agar disc method and dual culture bioassays. The number of apothecia reduced with decrease in temperature and relative humidity. Infection is dependent on long periods of leaf wetn...

Aiming at the problem of intelligent monitoring in grain storage, a design plan of temperature and humidity is proposed based on ZigBee wireless network. The system integrates the SCM technology, computer technology, intelligent sensor technology and wireless communication technology, using STC89C52 microcontroller as the control chip, SHT11 as an integrated temperature and humidity sensor, and...

An embedded system is the dedicated system designed for certain specific functions. This system is embedded as a part of complete device system that includes hardware such as mechanical and electrical components. Embedded systems seek various applications in consumer electronics, automotive electronics, industrial electronics, medical electronics, safety and storage control. A Single Chip Embed...

The introduction of affordable control networks for peanut dryers has made it possible to easily vary the curing temperature based on ambient air conditions. Previous research has used ambient temperature, relative humidity, and humidity ratio as possible control parameters. Peanuts from the same field were cured using four 0.11 m dryers to a moisture content of approximately 0.11 kg kg. Four d...

Environmental storage conditions, particularly air temperature, relative humidity and air velocity, have a major role in maintaining fruit and vegetable quality during cold storage. The constant low temperature, high relative humidity (RH) and moderate air flow are important to limit perishable quality. Storage temperature controls must be well calibrated to maintain a precise level of control....

We present here the behavior of the resonance frequency of porous anodic alumina cantilever arrays during water vapor adsorption and emphasize their possible use in the micromechanical sensing of humidity levels at least in the range of 10-22%. The sensitivity of porous anodic aluminium oxide cantilevers (Δf/Δm) and the humidity sensitivity equal about 56 Hz/pg and about 100 Hz/%, respectively....