Daming Li

Agricultural fertilization is used extensively to increase soil fertility and maximize crop yield. Despite numerous studies on how fertilization influences plant and bacterial communities, little is known about the roles of long-term application of different fertilizers in shaping arbuscular mycorrhizal fungal (AMF) community structures in a compar...

Objective: To investigate differential genes (DEGs) between no/mild and severe emphysema by bioinformatics analysis. Methods: The microarray dataset GSE1650, of lung tissue in no/mild and severe emphysema, was downloaded from the GEO database, and DEGs were obtained by t test. Analysis of DEGs based on DAVID database was used to obtain gene ontolog...

Organic amendments can improve soil fertility and microbial diversity, making agroecosystems more resilient to stress. However, it is uncertain whether organic amendments will enhance the functional capacity of soil microbial communities, thereby mitigating fluctuations in microbial respiration caused by environmental changes. Here, we examined the...

Soil organic carbon (SOC) mineralization is essential to biogeochemical recycling in terrestrial ecosystem. However, the microbial mechanisms underlying the nutrient-induced SOC mineralization remain uncertain. Here, we investigated how SOC mineralization was linked to microbial assembly processes as well as soil nutrient availability and stoichiom...

Landslide-generated waves are natural disasters that have raised the attention and concerns of researchers and engineers during the past decades. Since landslide-generated waves involve complex processes such as the impact of landslides, wave generation, and propagation, traditional numerical methods cannot capture this process well. Based on Darcy...

Energy dynamics within ecological communities are important in delivering ecosystem services. However, it remains elusive how the energy fluxes within soil food webs respond to agricultural fertilization regimes. Here, we studied the effects of long-term organic amendments and mineral fertilizers on the energetic structure of soil nematodes from a...

Today, blockchain uses a list of various blocks for storing a distributed flat of invariable information that informs of a set of replicated logical things in the Internet of Things (IoT). In the blockchain, a set of blocks includes various transactions containing a cryptographic hash value and a timestamp. Blockchain-as-a-service (BaaS) as a new s...

Soil aggregates are the key functional units of soil ecosystems which are essential to biogeochemical cycling and plant growth. However, it remains unclear how fertilization regimes influence soil aggregation, associated resources, and microbial distribution among aggregates, as well as the potential subsequent impacts for other abiotic and biotic...

A 2D local inertial equations model coupled with a 1D hydraulic model was established to simulate flood dispatching in river and flood detention areas. A simplified first-order accuracy finite volume method (FVM) solution was applied to the 2D model, and the source-type linking method was used at the coupling zones. The coupled model was calibrated...

Soil microbial diversity is extremely vulnerable to fertilization, which is one of the main anthropogenic activities associated with global changes. Yet we know little about how and why soil microbial diversity responds to fertilization across contrasting local ecological contexts. This knowledge is fundamental for predicting changes in soil microb...

With the implementation of low impact development (LID) in urban areas, it is necessary to quantify the actual effectiveness of LID facilities. In this study, a coupled hydrology-hydrodynamic numerical model was utilized to investigate the runoff control effectiveness of permeable pavements in the city centre of Shijiazhuang, China. Two groups of d...

Inorganic fertilizers and organic manures have been widely used to maintain crop yields. Leguminous green manures are usually used in the paddy fields in southern China. But the effect of green manures or combination of green manures with other fertilizers on soil physical properties, especially soil pore structure, is unclear. Based on a 34-year f...

There are many reservoirs in China, and the reservoir serves as an important source of drinking water. With the increasing pollution discharge upstream of the reservoir, the water quality of the reservoir is seriously threatened. Therefore, it is necessary to control the total amount of pollution and reduce the pollutants under the target water qua...

Sign detection has a wide application in digital fixed-point signal processing; however, it seems hard to conduct it in residue number systems (RNSs) based on complementary metal oxide semiconductor (CMOS). Also, quantum-dot cellular automata (QCA), as a useful substitution for CMOS technologies, provide many benefits such as low energy utilization...

Land Use/Land Cover (LULC) is a main factor that affects the hydrological process of catchments. A better understanding of its influence is of great significance to future land use planning and water resources management. Since 2011, the local government has implemented a land remediation plan, and the LULC in the Yanghe Reservoir Basin has undergo...

The application of organic fertilizers affects soil aggregates, nutrient situations and bacterial communities. However, the direct and indirect effect of different resource-derived organic fertilizers on soil bacterial communities and their links to soil aggregate is poorly understood. Here, we carried out a field experiment for three years to inve...

Cloud computing systems face new challenges every day due to the large and complex structure of system clusters and the data processed by the systems. The ability to obtain resources flexibly is considered to be the main reason for adopting cloud computing systems. Resiliency primarily supports facility growth and shrinks virtual resources accordin...

The importance of soil saprotrophic fungi in agroecosystems is receiving increasing attention. However, the linkages between saprotrophic fungal communities and soil fertility and stoichiometry in agroecosystems are poorly understood. Here, four long-term field fertilization experiments with three treatments (i.e., no fertilizer (control), chemical...

Blockchain is a hash chain with chain structure formed by data blocks in chronological order. With the promotion of bitcoin, the research and application of blockchain, the underlying core technology of bitcoin, is growing rapidly, which is considered to be the fifth generation of Internet disruptive technology after mobile Internet. At present, th...

Fertilisation plays key roles in soil organic carbon (SOC) formation and stabilization by regulating a range of microbial traits. However, little is known about the relationships between SOC composition and microbial traits under long-term fertilisation at aggregate scales. Here, we selected four long-term fertilisation field experiments in China t...

Changes in the Software requirements, technological advances require flexibility in software system development. Unexpected changes and mistakes cause difficulties. They effectively manage destructive changes, rework, and errors; project managers need to consider dynamic behavior loops of feedback on lead delays and disturbances. System Dynamics (S...

Tectonic activity occurred during the depositional period of the Enping Formation in the southern Baiyun Sag in the Pearl River Mouth Basin, with a series of synsedimentary faults and a set of large fan delta reservoir bodies developing. There is no data from drilling, cores, etc. for this area, so this paper applies three‐dimensional seismic data...

Central concern of this article is presenting the high-exactitude analysis on hygro-thermo-mechanical vibration of three-phase multi-scale hybrid composite angle-ply laminated rectangular plate (MHCALRP) for different couples of boundary conditions within the context of twelve-variable refined higher order shear deformation theory (RHOSDT12). Defin...

Metal–organic frameworks (MOFs) have gained immense attention as electrode materials for energy storage applications, because of their large porosity as well as high surface area. In this work, a novel needle-like bimetallic MOF (metal = bismuth and molybdenum; BM-MOF) self-assembled in dandelion structure is successfully prepared through a one-pot...

With the development of marine resources and marine transportation, oil spill accidents occur frequently which threaten the marine ecological environment and human life. In this paper, an oil spill model was established. The two-dimensional shallow water equation was discretized by the finite element weighted lumped mass method, and the time is dis...

The telecommunication industry is the technology of communication among humankind. One problem for this industry is to provide the required energy for its towers in the remote rural areas in the absence of the grid. This objection causes dependency of this industry to the diesel generators and battery banks as backup resources. Despite not being re...

Two greenhouse experiments using soils from long-term field plots were carried out to test whether and how soil factors modulated by organic amendments feed back to rice plant growth and defense against an aboveground herbivore, the planthopper Nilaparvata lugens. Using factorial combinations of sterilized soil and soil inocula obtained from chemic...

With the rapid development of society, the improvement of material level and the current situation of the large-scale population flow in China, the awareness of security is becoming more and more important in people’s life. With the rapid development of image processing and computer vision technology, people try to analyze, process and understand t...

Objective: To investigate the efficacy and safety of emergency venous sinus stenting in the treatment of acute visual impairment caused by idiopathic intracranial hypertension (IIH). Methods: A descriptive cross-sectional study design was used to retrospectively analyze 38 patients undergoing venous sinus stenting in the First Affiliated Hospital o...

At present, the application of communication network has spread to every area of social life. The progress of network technology has driven the development of information technology industry and the advancement of cloud computing. With the application of artificial intelligence and deep learning technology, the network becomes more and more intelli...

By using various Internet of Things technologies and communication technologies, smart cities can respond quickly and intelligently to various service requests of cities, thus realizing the intelligent operation and management of cities, strengthening the management of urban facilities and improving the quality of urban services. To improve the ope...

Purpose There have been many studies about the effects of long-term fertilizations on crop yields and soil organic carbon. However, little attention has been paid to the response of soil dissolved organic carbon (DOC) to fertilization practices. The aims of this work were to investigate the variations of the content and the chemical composition of...

The current problems are hot spots in recent years. With the rapid development of modern computer technology, numerical simulation technology has become an important means of scientific research, and the correlation numerical solution of two-dimensional shallow water equation is endless. In this paper, the two-dimensional shallow water equation was...

Measurement bias or drift often occurs after long-term use of the sensor. Measuring faults will inevitably mislead the control system, making the goal of advanced control strategies impossible. To this end, this paper proposes an artificial intelligence diagnosis method based on wavelet neural network for the diagnosis of sensor faults. Wavelet ana...

With the advent of multimedia technology, the application fields of computers are further broadened, such as computers widely used in video conferencing, video telephony, shopping mall shopping guides, tour guides, computer-aided integrated manufacturing systems, geographic information systems, computer-aided teaching, etc., with new The emergence...

In recent years, researchers have proposed many methods to solve the problem of obstacle detection. However, computer vision-based vehicle detection and recognition technology is still not mature enough. This research combines machine learning technology to construct a traffic object recognition system and applies innovative technology to the compu...

Image classification method is currently the more popular image technology, but it still has certain problems in practice. In order to improve the image classification effect, this study proposes a new convolution kernel, which can effectively detect the corresponding features with different transformations by actively transforming the relative pos...

In the context of economic globalization, the rapid transmission of network information, people’s attention to tourism culture perspective has changed significantly; new and popular tourism projects are more favored. In order to avoid large-scale crowding and waste of resources in tourist attractions, it is a hot topic in the field of tourism to st...

Fertilization maintains soil fertility and maximizes crop productivity, but changes soil microbial community structure and functions. However, little is known about the effects of long-term mineral and/or organic fertilization on fungal communities which regulate nutrient cycling and crop growth. The responses of fungal abundance and community stru...

Internet of Things (IoT) is an emergent heterogeneous communication platform that provides ubiquitous access to resources and meets the user demands. Developing smart city paradigm employs this communication platform for providing services to the users and granting distributed resource sharing. Mitigating adversary device selection in this platform...

In order to improve the reliability of electronic transactions, it is necessary to study more stringent and effective methods of identification and authentication. Face recognition technology has been applied in electronic trading, but it has not been widely promoted on a global scale. In view of this, based on the 3D modeling technology, this stud...

Microorganisms play an important role in soil phosphorus (P) cycling and regulation of P availability in agroecosystems. However, the responses of the functional and ecological traits of P-transformation microorganisms to long-term nutrient inputs are largely unknown. This study used metagenomics to investigate changes in the relative abundance of...

Three types of hole transport layers (HTLs) were developed based on multi-walled carbon nanotubes (CNTs), including pure CNT thin films, CNT:poly(3-thiophene ethanol) (P3ThEt)-g-polyaniline (PANI) nanocomposites, and CNT-g-poly(3-dodecyl thiophene) (PDDT):P3ThEt-g-PANI interconnected networks, and utilized in poly[benzodithiophene-bis(decyltetradec...

The smoothed particle hydrodynamics (SPH) method is applied to study the oil film diffusion in the water. By modifying the SPH equations of fluid dynamics, the multiphase flow SPH equations are obtained to establish the computational oil film diffusion model. By discussing three kinds of particle pairing schemes in the calculation of oil particle d...

Targeted cell migration plays important roles in developmental biology and disease processes including metastasis. Drosophila tumors exhibit traits characteristic of human cancers, providing a powerful model to study developmental and cancer biology. We now find that cells derived from Drosophila eye disc tumors also display organ specific metastas...

For life extension and construction of large space facilities, we hope to break through the weight and outline restriction of the rocket by using the on-orbit assembly technology with space mobile robots. The Chinese Space Station robots are designed for the missions of relocking spacecraft sections, docking assistance, installing equipment, mainta...

In the field of urban development, the construction of new smart cities has received the attention of the government and society. In the process of promoting urban intelligence, urban road lighting, intelligent lighting, etc, have gradually received attention, while the lighting source and control methods have been greatly improved. Smart cities po...

With the development of information technology and economic growth, the Internet of Things (IoT)industry has also entered the fast lane of development. The IoT industry system has also gradually improved, forming a complete industrial foundation, including chips, electronic components, equipment, software, integrated systems, IoT services, and tele...

The improvement of human quality of life is inseparable from the support of information technology, and the development of information technology has made human life more convenient. The current era is the information age, and the level of informatization has gradually become one of the important indicators to measure the comprehensive level of a c...

The different types of soil macropores (e.g., biopores and non-biopores) vary in the conductivity of water or air due to the difference in the 3D pore characteristics. The objectives of this study were to reveal which types of macropores and which macropore characteristics played the most important roles in regulating water or air flow. Intact soil...

The Internet of Things technology is based on the existing Internet and related transmission network technologies. It analyzes and summarizes the data collected in the sensing layer to ensure the timeliness and security of data transmission. Internet of Things technology will have long-term development in intelligent equipment. The network layer is...

Various computing environments are constantly emerging which are using different technology platforms and security mechanisms from each other. The development of network technology makes cross-domain access between various systems necessary, which requires seamless information sharing and data exchange between systems, thus eliminating the phenomen...

This work aims at investigating the impact of different tidal turbine locations on hydrodynamics in near-field and far-field flow; thus, three- and two-dimensional (3- & 2-D) models were exploited in combination and applied in a case study of Putuo-Hulu Islands’ tidal farm. We present a method for the simplification of tidal turbine which, based on...

This paper aims at developing a mathematical model of hazard assessment of debris flow (DF) by applying hydrodynamics mechanism (HM) in the judging of DF starting. On the basis of HM, finite-volume method has been used and the flow passages have been classified into ground channel, river channel, and overflow channel; hence, the simulating result o...

水稻土有机碳、氮矿化过程对水稻土质量和作物养分吸收具有重要的作用,但是它们对施肥措施的响 应及其与土壤结构之间的关系尚不清楚。本研究基于红壤性水稻土长期施肥定位试验,分析了不施肥(CK)、施用常量 化肥(NPK)、2 倍化肥(NPK2)和常量化肥配施有机肥(NPKOM)等处理下水稻土碳氮矿化特征,并研究了其与土壤团聚 体稳定性的关系。结果表明 NPKOM 处理显著提高了土壤有机碳和全氮含量(P<0.05),而单施化肥处理(NPK2 和 NPK) 则同 CK 处理没有显著差异。土壤有机碳矿化速率、累积矿化量和矿化率均为 NPKOM>NPK2>NPK>CK 处理,其中 NPKOM 处理显著高于其他处理(P<0.05),而后 3 个处理间没有显著差异。土壤氮矿化速率、累积矿化量和矿化率同 土壤碳矿...

Cladocerans have been widely used as bioassay organisms to evaluate the impact of toxic substances. In this study, the activities of selected immunological enzymes and MDA level were investigated to characterize Daphnia similoides' immune response to ammonia stress. The activity of ACP and CAT showed no significant change during the test. The activ...

The paddy soil presents strong structural dynamics due to tillage and frequent Wetting/Drying (WD) cycles. Fertilization practices can affect soil structure and therefore may alter their dynamics. The aim of this study was to investigate the temporal dynamics of paddy soil structure as affected by fertilization strategies using soil shrinkage chara...

Purpose A new coupled model is developed to simulate the interaction between fluid droplet collisions on discrete particles (DPs) by using mathematic function. Design/methodology/approach In this model, the smoothed particle hydrodynamics (SPH) is used based on the kernel function and the time step which takes into consideration to the fluid dom...

Very little is known about bio-oxidation tailings as an arsenic (As) pollution source. A comparison study was carried out between three flotation tailings (N1-1, N1-2 and N1-3) and three bio-oxidation tailings (N2-1, N2-2 and N2-3), collected from the Yangshu gold mine in China. A combined approach of mineralogy, geochemistry and environmental geoc...

The published online article unfortunately has an error in equation (2). © 2018 Springer International Publishing AG, part of Springer Nature

Background and aimsSoil macropores consist of biopores and non-biopores, which are different in morphological features and ecological functions. We aimed to separate biopores and non-biopores and investigate the response of their three-dimensional (3D) characteristics to land use and fertilization. Methods Intact soil cores sampled from the subsoil...

To study the optimum conditions of simulated drought stress and screen the indexes of drought resistance at germinating stage, the seeds of safflower (Carthamus tinctorius) PI305192 and PI401472 were used as the tested materials under the simulated drought conditions with six different concentrations of PEG-6000, and the principal component analysi...

Objective To compare and principal component analyze the main chemical composition contents in three variants of Gastrodia elata from southwest of China in order to provide reference for further researches and evaluations on the quality of G. elata. Method Sulfuric acid-phenol method was used to measure the contents of polysaccharides of three vari...

This paper derived the continuity and momentum equations of solid-liquid two-phase flows using infinitesimal body analysis and obtained well-posed equations of twodimensional (2D) flow-sediment movement. Based on the theory of solid-liquid twophase flow, the momentum equations of the bedload sediment were deduced and a closed form of the 2D total s...

Block chain is a decentralized core architecture, which is widely used in emerging digital encryption currencies. It has attracted much attention and has been researched with the gradual acceptance of bitcoin. Block chaining technology has the characteristics of centralization, block data, no tampering and trust, so it is sought after by enterprise...

As the basic content of the construction of the intelligent city, the application of intelligent transportation system plays an important role in improving the quality and safety of modern urban traffic operation. Intelligent transportation system combines information technology, data communication technology, electronic sensing technology, global...

Cladocerans have been widely used as bioassay organisms to evaluate the impact of toxic substances. In this study, the activities of selected immunological enzymes and MDA level were investigated to characterize Daphnia similoides' immune response to ammonia stress. The activity of ACP and CAT showed no significant change during the test. The activ...

The rise of machine learning increases the current computing capabilities and paves the way to novel disruptive applications. In the current era of big data, the application of image retrieval technology for large-scale data is a popular research area. To ensure the robustness and security of digital image watermarking, we propose a novel algorithm...

This paper presents a simulation method for oil spills in a multi-island area. The simulation considers three parts, which consist of (1) the spreading of an oil slick on its edge as well as the diffusion and drift under dynamic actions, (2) the evaporation and spreading thickness of an oil slick in its interior, and (3) the adsorption and emulsifi...

Background Three-dimensional geological modeling of reservoirs is not only the key factor for reservoir description and prediction of oil reserves but also an important means of quantitative characterization of reservoir geometry and heterogeneity in three dimensional spaces. The aim of this paper is to establish prediction model for sandstone clas...

As one non-surveillance study method, soft clustering is well applied in the data mining, the imagery processing, the pattern recognition, the spatial remote sensing technology and the characteristic extraction and so on state-of-the-art applications in many domains all have the widespread application. Inspired by the combination of neural network...

RAS genes are frequently mutated in cancers, yet an effective treatment has not been developed, partly because of an incomplete understanding of signaling within Ras-related tumors. To address this, we performed a genetic screen in Drosophila, aiming to find mutations that cooperate with oncogenic Ras (RasV12) to induce tumor overgrowth and invasio...

Objective: To study the nitrogenous compounds of Sargassum pallidum. Methods: The compounds were separated and purified by D101 macroporous adsorptive resins, silica gel chromatography, Sephadex LH-20 chromatography, ODS column chromatography, and HPLC methods. Their structures were identified on the basis of physical and chemical properties and sp...

The symmetric positive-definite (SPD) matrices form a Riemannian manifold, and sparse representation on the SPD matrix manifold has received increasingly attentions recently. In this paper, we propose a semantic and neighborhood preserving dictionary learning method for the sparse representation on the SPD matrix manifold. The semantic preserving e...

Objective: To discuss the therapeutic method and technical points of endovascular embolization treatment for ophthalmic segment aneurysms of internal carotid. Methods: The imaging materials, clinical data, therapeutic efficacy and follow-up results of 48 patients with ophthalmic segment aneurysm, who were admitted to the First Affiliated Hospital o...

Objective: To study the non-alkaloids from the 70% ethanolic extracts of Phellodendri Cortex. Methods: A variety of 732 cation exchange resin chromatography, D101 macroporous adsorbent resin chromatography, silica gel chromatography, ODS column chromatography, Sephadex LH-20 chromatography, and preparative HPLC methods were used for the separation...