Temperature-dependent development and reproduction of rice leaffolder, Marasmia exigua (Lepidoptera: Pyralidae).

Marasmia exigua (Butler) (Lepidoptera: Pyralidae) is one of the major rice leaffolders negatively affecting the rice production in the world. The growth and development of M. exigua was studied at seven constant temperatures (10, 15, 20, 25, 27, 30 and 35°C).

[Effect of application of cow manure and green manure on corn yield and soil physical-chemical properties in land restoration area].

The effects of cow manure and green manure on maize yield, soil respiration and soil physical-chemical properties in land restoration area was evaluated through field experiments. The results indicated that the maize yield and thousand-grain mass with cow manure were increased by 7.2%-29.

[Nutrient spatial variability of tobacco soil restoration area and fertility suitability level evaluation].

By using geographic information system technology (GIS) and geostatistics methods, this paper studied the spatial variability of soil properties and available nutrients in the new regulation area units located in Qingjiangyuan modern tobacco agriculture science and technology park (Enshi, Hubei), suburb of Enshi City and the Baiyang base of Lichuan City, and further evaluation of the soil fertility suitability index (SFI) was carried out by use fuzzy mathematics. The results indicated that the effects of land restoration on the soil available phosphorus content variability and spatial distribution were very obvious, possibly due to the landform characteristics and restoration extent. The effect of land restoration on soil pH was small, however, serious soil acidification was detected in the soil sampled from Baiyang (pH < 5.

Identification and field bioassay of the sex pheromone of Trichophysetis cretacea (Lepidoptera: Crambidae).

The jasmine bud borer Trichophysetis cretacea (Butler) (Lepidoptera Crambidae) is an important agricultural pest of jasmine flowers Jasminum sambac in China. The extract from the pheromone gland of the female moth was analyzed by gas chromatography coupled to mass spectroscopy (GC-MS). (Z)-11-hexadecenyl acetate (Z11-16:Ac), (Z)-11-hexadecenal (Z11-16:Ald),and (Z)-11-hexadecenol (Z11-16:OH) were identified as the probable sex pheromone components.

[An image acquisition & processing system of the wireless endoscope based on DSP].

This paper covers an image acquisition & processing system of the capsule-style endoscope. Images sent by the endoscope are compressed and encoded with the digital signal processor (DSP) saving data in HD into PC for analyzing and processing in the image browser workstation.

[The hardware design of a portable gastrointestinal wireless endoscope image receiver].

The portable gastrointestinal wireless endoscope image receiver is developed and based on TMS320C6211 DSP. It can receive and demodulate the modulated signal which is transmitted from the camera-capsule, and then output the video signal. The synchronizing signals offered by SAA7114H are made best of and are used to design the time logic circuit.

[Research on swallowable camera-capsules of gastrointestinal wireless endoscope].

The swallowable camera-capsule,described in the aper, 11 mm in diameter and 30 mm in length , contains a CMOS image sensor, an optical system, a battery, a light source, a transmitter, a antenna and so on. The CMOS image sensor and its driving circuit can be miniaturized with MEMS technology. Image signal can be transmitted by analog or digital way.

[Development of the chip system for measurement of red blood cell rheology].

We have developed a novel silicon microchannel system for the research of the red blood cell rheology and deformation. Recurring to many kinds of information technologies and advanced test means such as the electronic microscope, the image acquisition system and the computer processing system and by using the up-to-date Micro Electro Mechanical System (MEMS) technology, a new measuring system of red bood cell deformation is designed based on the chip and a model using the silicon microchannel to simulate capillary vessel network. It provides a real-time collection and anaysis of data which include image, speed, flow parameter, and so on.

[Latest progress of minimally-invasive medical systems in the field of alimentary tract diagnosis and treatment].

The capsule-style micro-system is a hot spot of minimally-invasive medical instruments. Progresses of some typical capsule-style micro-systems, such as the wireless endoscope, site specific delivery capsule (SSDC), alimentary tract sampling capsule, PH capsule, etc. are introduced here in detail.