Soil microbiome dysbiosis and rhizosphere metabolic dysfunction drive continuous cropping obstacles of .

Successive monocropping of causes continuous cropping obstacles, impairing growth, yield, and quality. To investigate the soil environmental and microbial changes caused by these obstacles, we collected both continuous cropping (C-crop) and non-continuous cropping (NC-crop) soil for analysis. We employed high-throughput sequencing, Biolog-ECO microplate, and metabolomics technology to evaluate microbial diversity, community structure, and carbon source utilization efficiency.

Effect of inoculating thermophilic bacterial consortia on compost efficiency and quality.

The objective of this study was to investigate the potential effects of thermophilic bacterial consortia on compost efficiency and quality. The application of bacterial consortia resulted in an earlier onset of the thermophilic period (THP), an increased upper temperature limit, and an extended duration of the THP by 3-5 days compared to the control group (CK). Microbial inoculation significantly improved the efficiency of organic matter degradation, as well as the content of water-soluble nitrogen (WSN) and humic acid-carbon (HAC).

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).

Changes in soil microbial community composition and organic carbon fractions in an integrated rice-crayfish farming system in subtropical China.

Integrated rice-crayfish farming system is a highly efficient artificial ecosystem in which the rice (Oryza sativa) variety 'Jianzhen 2' is cultivated in waterlogged paddy fields along with crayfish (Procambarus clarkii). We investigated soil carbon fractions and microbial community structure by phospholipid fatty acids (PLFA) analysis in a 10-year field experiment using an integrated rice-crayfish (CR) model and a rice monoculture (MR) model at soil depths of 0-10 cm, 10-20 cm, 20-30 cm, and 30-40 cm. Compared with the MR model, the CR model had significantly more total organic carbon, particulate organic carbon, and dissolved organic carbon contents in all of the layers examined and microbial biomass carbon content in the 20-40 cm layer.

[De-noising of Impedance Cardiography Differential Signal and Detection of the Feature Points Based on Wavelet Transformation].

Calculation of cardiac hemodynamic parameters is based on accurate detection of feature points in impedance cardiogram. According to these parameters, doctors can determine heart conditions, so it is very important to accurately detect the feature point of impedance differential signals. This article presents a process in which we used wavelet threshold method to de-noise signals, and then detected the feature points after six layers wavelet decomposition by using bior3.

[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.

[The principles and research status of noninvasive glucose detection based on near-infrared spectrum].

It is of great clinical significance to investigate noninvasive glucose detection. As one of the most potential methods, the noninvasive glucose detection based on near-infrared has become a hot research area recently. In this paper the principles and research methods of noninvasive glucose detection based on near-infrared spectrum are introduced.

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.

[Research progress on key technology of power and signal transmission in neuroprosthetic].

The power and signal transmission technology is one of the key technologies in neuroprosthetic research. This paper proposes firstly the related theory of power and signal transmission technology in neuroprosthetic, then summarizes the three key aspects of the power and signal transmission technology in neuroprosthetic. After analyzed the development of the inductive wireless power harvesting technology, the wireless telemetry technology and the wireless power harvesting telemetry technology, the emphasis on research contents will be proposed and discussed, which will help accelerate the further research of prosthetic.

Waveform descriptor for pulse onset detection of intracranial pressure signal.

We present an algorithm to identify the onset of intracranial pressure (ICP) pulses. The algorithm creates a waveform descriptor to extract the feature of each local minimum of the waveform and then identifies the onset by comparing the feature with a customized template. The waveform descriptor is derived by transforming the vectors connecting a given point and the local waveform samples around it into log-polar coordinates and ranking them into uniform bins.

[Study of principles of non-invasive glucose monitoring and instruments with the methods].

Non-invasive blood glucose monitoring will be the development direction for detecting the blood glucose concentration of body in time. In this way, the concentration of the blood glucose can be controlled effectively, then the complicating diseases of diabetes can be reduced, so it is of great significance for diagnosis and treatment of diabetes. The recent developments of non-invasive blood glucose concentration monitoring technologies, including basic principles, results of verification test and instruments, are discussed, especially three methods with instruments facing market.

[Review of the active locomotion system for capsule endoscope].

This review summarized the progress of researches on the active locomotion system for capsule endoscope, analyzed the moving and controlling principles in different locomotion systems, and compared their merits and shortcomings. Owing to the complexity of human intestines and the limits to the size and consumption of locomotion system from the capsule endoscope, there is not yet one kind of active locomotion system currently used in clinical practice. The locomotive system driven by an outer rotational magnetic field could improve the commercial endoscope capsule, while its magnetic field controlling moving is complex.

[A modified fast independent component analysis and its application to ERP extraction].

Feature extraction of event-related potentials (ERP) plays an important part in both basic and clinical researches for cerebral neurophysiology. ICA is a method for separating blind signals based on signal statistic characteristics. In this paper, the fundamental principle, the discrimination condition and the practical algorithm of Independent Component Analysis are discussed.

[A discussion about key issues in retinal prosthesis].

Retinitis pigmentosa (RP) and age-related macular degeneration (AMD) are two predominant causes of visual deterioration. Retinal prosthesis embeds a micro-electric chip or a micro-photoelectric diode array in the sub-retina or epi-retina, which is used to stimulate the remainder of inner retina, so as to restore some degree of sight. Retinal prosthesis has attracted most attention in the field of artificial visual function recovery, and along with deep-going research, many issues need to be resolved.

[An improved morphological edge detection algorithm of medical image based on multi-structure element].

An improved edge detection algorithm is proposed in this paper for the medical images with strong noises and fuzzy edges. The algorithm modified the combination of morphological operations, so that the unclear edges of the images are avoided. In this paper is also introduced the algorithm of multi-structure elements which can reserve integrated edges from different directions of the images.

[Suppression of geomagnetic field interference in the magnet locating system of the micro-magnetic capsule inside the alimentary tract].

A method for the suppression of geomagnetic field interference is here-in introduced. It is designed for use in the magnet locating system of the engineering-based microcapsule inside the alimentary tract. This method marks the geomagnetic field interference levels by getting the static value.

[Application of feedback techniques in motor function rehabilitation].

Feedback is an important way of information transmission in motor function output. Movement-related information can be transmitted as proprioceptive, haptic, visual and/or audial information to the central nervous system for control and modification of the temporal and spatial precision of motor output. Here presented is a systematic discussion on the principle, technique and effect for some typical motor function rehabilitation methods such as treatment based on EMG feedback, robot-aided movement therapy, high-level perceptional feedback and motor training effect with 3-D virtual reality environment.

[Review of the design of power supply in retinal implants].

The energy supply for the stimulation arrays is the key component in retinal implants. Usually, the thin film solar cell is used to supply energy, but it can not supply enough stimulation power. One of the general idea of incident energy supply is radio frequency (RF) circuit.

[Research and development of artificial retina material].

The application of artificial retina was introduced. The principal characteristics of artificial retina material were reviewed in particular. Moreover, the recent research development and application prospect were discussed.

[Research progress of subretinal implant based on electronic stimulation].

Subretinal prosthesis is one kind of retinal prosthesis, which means that a microimplant based on MEMS technology is inserted in the subretinal space to stimulate the optic nerve and elicit an electrical-evoked response on the cortical region. The subretinal implant is made up of extraocular part and intraocular part. As an important part, the latter consists of accessorial setting and stimulation chip that contains microphotodiode array (MPDA) and microelectrodes.

[Three-dimension reconstruction of ocular fundus image].

The mathematical model for 3D reconstruction of ocular fundus images is constructed according to both the reduced eye model and the simplified model of fundus camera optical system. The relationship between the images of emmetropic and ametropic eye and the true shape of ocular fundus retina is analyzed, and then the mapping relationship from 2D ocular fundus plan image to 3D surface image is obtained. As a result, the real example of 3D reconstruction for ocular fundus images is given.

[Development of a video image system for wireless capsule endoscopes based on DSP].

A video image recorder to record video picture for wireless capsule endoscopes was designed. TMS320C6211 DSP of Texas Instruments Inc. is the core processor of this system.

[Development of a massage device based on microcontroller in the field of alimentary tract].

In this artical is first reported a survey of the progress in research of MEMS technology. Then, the basic structure, features and the principles of a massage device based on microcontroller in the field of alimentary tract are introduced. Special emphasis is laid on the utilization of MSP430F123 microprocessor for producing a kind of period pulse to control the power of massage capsule.

Experimental Study of Magnetic-based Localization Model for Miniature Medical Device Placed Indwelling Human Body.

More and more miniature medical devices (MMD), such as alimentary canal miniature drug delivering device, wireless endoscope, feeding tubes and treatment probes, have been researched and developed for clinical diagnosis and therapy. When a MMD was put into the human body for diagnosis and therapy, it is necessary to provide a non-invasive locating method that can locate the MMD in long-term. Here, a novel magnetic-based position method has been explored.

Research Progress of Subretinal Implant based on Electronic Stimulation.

Subretinal prosthesis is one kind of retinal prosthesis, which means that a microimplant based on MEMS technology is inserted in the subretinal space to stimulate the optic nerve and elicit an electrical-evoked response on the cortical region. The subretinal implant is made up of extraocular part and intraocular part. As an important part, the latter consists of accessorial setting and stimulation chip that contains microphotodiode array (MPDA) and microelectrodes.