Recognizing the labor intensity of current domestic Chinese chive harvesting and need for its mechanized harvesting, a self-propelled electric harvester is designed. The machine composed control system, supporting mechanism, cutting parts, conveying clamping mechanisms, frame, collection system. It can complete feeding, cutting, transmission, binning operations at one time. has width 0.25 m whe...

We propose a novel hybrid single-electron device for reprogrammable low-power logic operations, the magnetic single-electron transistor (MSET). The device consists of an aluminium single-electron transistor with a GaMnAs magnetic back-gate. Changing between different logic gate functions is realized by reorienting the magnetic moments of the magnetic layer, which induces a voltage shift on the ...

Single-nucleotide polymorphisms (SNPs) are the most abundant type of genetic variations; they provide the genetic fingerprint of individuals and are essential for genetic biomarker discoveries. Accurate detection of SNPs is of great significance for disease prevention, diagnosis and prognosis, and for prediction of drug response and clinical outcomes in patients. Nevertheless, conventional SNP ...

The precise placement of single-walled carbon nanotubes (SWNTs) in device configurations has been accomplished by AC dielectrophoresis using a biomimetic surfactant, dioctyl sodium sulfosuccinate (i.e. AOT) dispersed SWNTs. To better serve the utilization of SWNTs/AOT for device fabrication, the dispersion of SWNTs in AOT aqueous solutions was investigated at different micellar concentrations a...

A fluorescence-based integrated optics microfluidic device is presented, capable of detecting single DNA molecules in a high throughput and reproducible manner. The device integrates microfluidics for DNA stretching with two optical elements for single molecule detection (SMD): a plano-aspheric refractive lens for fluorescence excitation (illuminator) and a solid parabolic reflective mirror for...

We proposed "single-molecule immunoassay", quantification of single protein molecules, by developing a nanofluidics-based enzyme-linked immunosorbent assay (ELISA) device. Extremely small volume(pL-aL) and high surface-to-volume ratio of nanochannels enables ~100% capture of analyte molecules. Enzymatic amplification reaction and differential interference contrast thermal lens microscope (DIC-T...