Rice (Oryza sativa L.) is cultivated in a wide range of climatic conditions, and one mankind's major staple foods. The interaction environmental factors with genotype effects agronomic traits such as yield, quality, resistance rice. However, studies on the affecting are often difficult to conduct because most dynamic constantly changing.A series recombinant inbred lines (RILs) derived from an indica/japonica cross were planted into four typical rice areas arranging latitude N22° N42°. data...

Two of the most widely cultivated rice strains are Oryza sativa indica and O. japonica, understanding genetic basis their agronomic traits is importance for crop production. These two species highly distinct in terms geographical distribution morphological traits. However, relationship among background, ecological conditions, unclear. In this study, we performed de novo assembly a high-quality genome SN265, cultivar that extensively as backbone japonica parent northern China, using...

Drought is one of the major abiotic stress factors limiting peanut production. It causes loss pod yield during formation stage. Here, previously identified drought-tolerant cultivar, “L422” peanut, was stressed by drought (35 ± 5%) at stage for 5, 7, and 9 days. To analyze effects on we conducted physiological transcriptome analysis in leaves under well-watered (CK1, CK2, CK3) drought-stress conditions (T1, T2, T3). By analysis, 3,586, 6,730, 8,054 differentially expressed genes (DEGs) were...

Peanut pod rot is one of the major plant diseases affecting peanut production and quality over China, which causes large productivity losses challenging to control. To improve disease resistance peanuts, breeding significant strategy. Crucial preventative management measures include grading screening high-contributed genes that are highly resistant should be carried out. A machine vision-based approach for individual cases was proposed in this study, avoids time-consuming, labor-intensive,...

The dispersion of circumferential waves propagating around cylindrical and spherical underwater targets with an arbitrary number elastic fluid layers is modeled using the spectral collocation method. underlying differential equations are discretized by Chebyshev interpolation corresponding differentiation matrices, calculation curves transformed into a generalized eigenvalue problem. Furthermore, for in infinite fluid, perfect matched layer used to emulate Sommerfeld radiation condition. For...

OBJECTIVE: The primary aim of this study is to assess the diagnostic efficacy elastography and contrast-enhanced ultrasound (CEUS) in identification breast lesions subsequent optimization correction BI-RADS category 4 classification obtained through conventional ultrasound. objective augment both specificity accuracy lesion diagnosis, thereby establishing a reliable framework for reducing unnecessary biopsies clinical settings. METHODS: A cohort comprising 50 cases classified under was...

Soybean (Glycine max) seed yields rely on the efficiency of photosynthesis, which is poorly understood in soybean. Chlorophyll, major light harvesting pigment, crucial for chloroplast biogenesis and photosynthesis. Magnesium chelatase catalyzes insertion Mg2+ into protoporphyrin IX first committed key regulatory step chlorophyll biosynthesis. It consists three types subunits, ChlI, ChlD, ChlH. To gain a better knowledge biosynthesis soybean, we analyzed soybean Mg-chelatase subunits their...

A novel method is put forward to remove cross-terms in the Wigner–Ville distribution (WVD) of multicomponent linear frequency modulation (LFM) signals. For difference amplitude auto-terms and cross-terms, WVD matrix filtered using low-pass filter direction ratio. Furthermore, a technique called energy weight proposed for with low-oscillation which cannot be eliminated because limitation filters. The gain signal noise ratio (SNR) after filtering derived while resolution computational cost are...

In order to achieve the effective detection of line spectrum ship-radiated noise in low signal-to-noise ratio (SNR), this paper we improve conventional intermittent chaotic oscillator series method, and propose a signal method based on adaptive step oscillator. Through setting sequence calculating steps which can cover frequency band be measured, use just one Duffing accomplish searching for weak with unknown frequency. further performance, analyze Holmes equation’s sensitivity at different...

Underwater target elastic acoustic scattering and other components are aliasing together in the time frequency domains, existing signal processing methods cannot recognize features under condition because of resolution limitation. To address this problem, study, which is based on echo highlight model, analyzes characteristics when transmitted a linear modulation pulse. The structure fractional Fourier transform (FRFT) domain deduced theoretically. Then, filtering used FRFT to separate...

Gastrointestinal stromal tumors (GIST) are mesenchymal neoplasms of the gastrointestinal tract (GI) that defined, in part, by expression CD117, a c-Kit proto-oncogene protein. GISTs emerge outside GI at very low frequency, typically single organ or location. occasionally classified as extra-gastrointestinal (EGIST). The present study reports an extremely rare case EGIST detected pancreas and liver. pancreatic liver were 4.5×2.5 cm 2.0×1.5 size, respectively. Both consisted CD117-positive...

The components of the underwater target scattering waves alias together in time domain and frequency realistically. They are affected by incident angle, show great differences under different angles. It is necessary to build an analytical model all-direction angles theoretically. expressions geometrical changing with angle fractional Fourier transform deduced this paper. optimal built. Based on this, feature echo provided. In addition, relationships between resolution bandwidth transmitted...

The Hilbert-Huang transform (HHT) has the advantage in dealing with non-stationary signals, for its data driving. However there are some limitations of original HHT. For getting more benefits frequency resolution, an improved HHT is applied this paper. In version, instantaneous harmonic retrieval method to calculate frequencies intrinsic mode functions, which overcomes limitation Hilbert transform. simulation result shows, HHT, we can get resolution than At same time experimental prove...

Facing the unbalanced development of resource distribution and productivity, China needs long-distance power transmission distribution. The will lead to a lot loss in process transmission. In order achieve long-distance, large capacity, low transmission, it is necessary build UHV transformation lines grid for cross regional allocation. As key equipment transformation, bushing plays very important role line. However, due working electric field long time, reduction failure rate smooth...

Although exploration and exploitation, as a pair of paradoxical organizational outcomes, are generated by different causal conditions, the conjunction their respective antecedents has yet to be fully examined. Combining environmental uncertainty, unit interdependence, entrepreneurial bricolage firm life cycle stage in qualitative comparative analysis (QCA), distinct configurations exploitation formalized compared based on survey founders or high-level managers 63 small firms. Results show...

An elastic acoustic scattering by underwater target could be mixed with other components in both time and frequency domains, the existing signal processing methods not discriminate feature of status. For solving this problem, a separation method for is proposed. Based on highlight model echo, characters when linear modulation transmitted, are analyzed, mapping to single Theoretical derivation shows that there simple relationship between structure mapped result, then can separated narrow-band...

The physical mechanism and signal characteristics of acoustic scattering are the vital basis for target recognition. But underwater components aliasing in time-frequency (TF) domain, which elastic difficult to detect. Additionally, existing blind source separation methods effective only on condition that number array elements is equal or greater than signals. To address these problems, a novel TF domain extraction method separating proposed this paper. uses energy characteristic differences...