Eco-friendly alternative way for waste straw management is needed. Black soldier fly (Hermetia illucens) larvae (BSFL) are outstanding insects bioconversion of organic waste, which can convert separate or mixed i.e. manure, kitchen and straw, into biomass rich in protein fat. In this study, through orthogonal experiment, maize fermented with Aspergillus oryzae 24 h a ratio 4000:1, was identified BSFL bioconversion. Bioconversion performance on assessed. With as feedstuff, larval stage BSF...

House fly larvae provide a prolific and sustainable source of proteins used in poultry fish feed. Wheat bran is superior diet for house has been widely investigated to exploit its potential the food feed area. Using Illumina MiSeq 16S rDNA sequencing, this study gut microbiota feeding on wheat bacterial community bran. The communities were dominated by phyla Proteobacteria Firmicutes. Enterobacteriaceae Providencia predominant bacteria at family genus levels, respectively. Some...

Nitrous oxide (N2O) is an environmental pollutant that has a significant greenhouse effect and contributes to the depletion of ozone layer. To address issues caused by N2O, direct catalytic decomposition N2O N2 O2 been demonstrated as one most efficient methods for its removal. Various metals, particularly noble including Rh, Ru, Pd, Pt, Au, Ir, have widely used investigated catalysts facilitate this transformation. Therefore, review aims provide overview advances in metal-based studied...

Abstract With the development of large-scale livestock farming, manure pollution has drawn much attention. Conversion by insects is a rapid and cost-effective new method for management. Swine conversion with maggots ( Musca domestica larvae) developed, harvested are often used as animal feed. However, flow heavy metals from to downstream processes cannot be ignored, therefore, metal content was measured in untreated raw manure, maggot-treated maggot-eating chickens (chest muscle liver)...

Abstract In this work, (1− x )(0.98Bi 0.5 Na TiO 3 ‐0.02BiAlO )‐ (Na K )NbO (BNT‐BA‐ KNN) lead‐free pyroelectric ceramics were prepared by a solid‐state reaction method. The effect of NbO (KNN) content on microstructure, phase transition, and electrical properties the BNT‐BA‐ KNN systematically investigated. results show that appropriate can induce formation tetragonal structure, which in decreased ferroelectric‐antiferroelectric transition temperature as result break long‐range...

As a key component of motion support, the rolling bearing is currently popular research topic for accurate diagnosis faults and prediction remaining life. However, most existing methods still have difficulties in learning representative features from raw data. In this paper, Xi’an Jiaotong University (XJTU-SY) dataset taken as object, deep technique applied to carry out fault research. The root mean square (RMS), kurtosis, sum frequency energy per unit acquisition period short-time Fourier...

Gut bacteria are closely associated with host. Chrysomya megacephala, as a vector and resource insect, can transmit various pathogenic consume manure to produce biofertilizer larva biomass. However, the gut composition abundance of C. megacephala remain unclear.Illumina MiSeq platform was used compare bacterial community in eggs, 1-day-old larvae, 5-day-old pupae, adult females males by sequencing variation V4 region 16S ribosomal DNA gene. In total, 928 operational taxonomic units (OTUs)...

To solve the problem of poor performance target detection algorithm and false in paint surface defects office chairs five-star feet, we propose a defect method based on improved YOLOv3 algorithm. Firstly, new feature fusion structure is designed to reduce missed rate small targets. Then used CIOU loss function improve positioning accuracy. At same time, parallel version k-means++ initialization (K-means||) optimize determine parameters priori anchor so as matching degree between layer. We...

Summary Chrysomya megacephala is a saprophagous fly whose larvae can compost manure and yield biomass bio‐fertilizer simultaneously. However, there are concerns for the safety of composting system, that risk diseases spread by way pathogens, residue harmful metals emission greenhouse gases. Microbiota analysis heavy metal speciation European Communities Bureau Reference were evaluated in raw, C. ‐composted natural stacked swine to survey pathogenic bacterial changes mobility lead cadmium...

The online detection of partial discharge (PD) in gas-insulated switchgear (GIS) is a crucial and powerful tool for maintaining their reliability. However, extracting weak signals from strong disturbances significant challenge. presence noise can hamper the identification localization PD types, making extraction pure focus current research. This paper proposes PRPD-based filtering algorithm that analyzes interference using output information PRPD sets threshold parameters reduction...

Abstract We report here a selective C6‐nitration of benzothiazolones in the presence iron nitrate as nitro source. A series novel 6‐nitrobenzothiazolin‐2‐one derivatives were prepared with moderate to excellent yields at room temperature. The method shows good regioselectivity, broad substrate scope and compatibility functional groups. Further transformations performed for reduction groups, amination carbonyl groups alkylation amine 3‐position product.

Piezoelectric positioning stage is the core component of precision system and advanced instrument. Its hysteresis characteristics, especially rate-dependent are main factors affecting or control accuracy. The multi-slope Prandtl–Ishlinskii (MPI) based modeling compensation experiments two-dimensional piezoelectric discussed. impact driving voltage amplitude frequency on characteristics uniaxial actuator in studied, influence variable-frequency voltages output displacement a actuator. MPI...

摘要 采用活性亚结构拼接的方法将二苯醚活性结构单元引入到联苯胺的结构中, 设计并合成了一系列未见文献报道 的新型含二苯醚结构的联苯胺类衍生物.此外, 所得目标化合物的结构经 1 H NMR、 13 C NMR、高分辨质谱

Lead (Pb) is a typical toxic contamination source all over the world. In this research, larvae of housefly (Musca domestica) were fed Pb-contaminated diet at different Pb doses 0, 20 and 5000 mg/kg. RNA sequencing was used to identify genes that differentially expressed in relation lead transport or detoxification. interference (RNAi) carried on 12 candidate genes. The results showed three luminal pH regions mid-gut values 6.33, 3.10, 7.80. With increasing concentration, middle decreased by...

In this paper, through control the precursor's structure with layer morphology, plate-like particles different edge length and thickness can be syntheszed by two step molten salt (MSS) method. The results of SEM showed that NaNbO3 were characterized platelet-like morphology an 10∼20 μm a 1∼4 μm. XRD indicated synthesized had strong orientation in {0 0 l} crystal planes. we are suitable template candidate to fabricate textured ceramics TGG or RTGG method, especially potassium sodium niobate...

Intelligent manufacturing has a strong role in promoting the transformation and upgrading of traditional industries such as chair industry. This study aimed to accurately evaluate production status technical level industry enterprises, then better guide enterprises gradually implement intelligent manufacturing. Based on analytic network process (ANP), we propose four capability domains, nine sub-domains, 21 evaluation elements, thereby constructing an model for maturity enterprises’ First,...

Constructing a porous structure in photocatalysts is an effective strategy for improving the photocatalytic activity because of its enhanced molecule transfer capability and light capturing efficiency. In this work, hierarchical macro‐/mesoporous ZnS/TiO 2 composite with macrochannels was successfully synthesized without using templates by simple dropwise addition ethanol solution tetrabutyl titanate zinc acetate into sodium sulfide aqueous solution, which then calcined at 450°C. Compared...

In view of the phenomenon that camera imaging will appear large up close and small from afar in eye-to-hand hand-calibration system, one hand–eye calibration is carried out. The manipulator only suitable for grasping objects same height, results cannot be applied to products with variable height. Based on study pinhole model rigid transformation between coordinate systems, introduction height parameters, relationship parameters matrix image system robot sampling are established. experiment,...