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Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rubber Industry is the property of Editorial Office of China Rubber Industry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The processing efficiency and application range of konjac glucomannan (KGM) are limited because of its high relative molecular mass and the high viscosity of its aqueous solution. In this study, konjac flour from Amorphophallus bulbifer was used as raw material to develop an efficient approach to reducing the viscosity of KGM and broadening its application market. Based on a single-factor test and an orthogonal experimental design for optimization, low-viscosity konjac flour was prepared by microwave-assisted hydrogen peroxide oxidation (a semidry process), and the changes in physicochemical, structural, and physiological characteristics of KGM were characterized before and after the treatment. The results showed that the viscosity of konjac flour decreased from 6341.67±52.04 to 53.33±5.77 mPa·s, and the weight-average molecular weight of KGM decreased from 347.31 to 158.26 kDa when the uniformly mixed reactants were heated and reacted within 3 min at a microwave power of 700 W. The concentration of the hydrogen peroxide was 3%, and the liquid-material ratio was 0.75:1 mL/g. Compared to the untreated raw material, it decreased by 99.16% and 54.43%, respectively. Based on X-ray diffractometry, ultraviolet-visible spectrometry, infrared spectrometry, and scanning electron microscopy analyses of the KGM structure before and after oxidation, the oxidation of the KGM degraded the KGM molecular chain, decreased the crystallinity, and damaged the microscopic lamellar structure while retaining the characteristic groups. Moreover, the effect of the microwave-assisted hydrogen peroxide in decreasing the viscosity of the KGM was superior to that of the KGM treatment with the microwave or hydrogen peroxide only. The degradation products exhibited better fat-binding capacity and bile-acid-binding capacity. Therefore, KGM can be produced in a highly efficient, green, and ecofriendly manner, providing a rationale for the development and utilization of low-viscosity KGM.

ObjectiveTo explore the characteristics and associated risk factors of diabetes in patients with schizophrenia living in communities, and to provide a basis for the prevention of diabetes comorbidity in this population.MethodsA stratified cluster sampling was used to randomly select patients with schizophrenia in Shanghai who participated in the free health examination provided by the National Basic Public Health Services in 2020. Statistical methods were employed to analyze the general demographic data, clinical characteristics, and laboratory test results of the study subjects.ResultsThe study included 3 374 individuals with schizophrenia, among which the prevalence of diabetes was 17.01%. Statistically significant differences were observed in terms of age, education level, urban area type, marital status, employment status, duration of illness, blood pressure, body mass index, total cholesterol, and triglyceride levels (all P

Strong-aroma natural spices are characterized by their strong aroma, possessing aromatic and irritating properties, with the main components being aromatic compounds. Typical representatives include star anise, cinnamon, fennel, and cloves. The aforementioned strong-aroma natural spices are widely used both domestically and internationally, especially in soy sauce stewed meat products and fermented meat products. Nonetheless, current research on the aroma-imparting and flavor-presenting mechanisms of natural spices remains insufficiently in-depth and systematic. This paper bases on a review of relevant domestic and international research in recent years, systematically summarizes the flavor analysis methods, flavor characteristics, and key flavor components of typical strong-aroma natural spices. It concurrently discusses their impact on the flavor formation of meat products: spice flavor components can influence the flavor of soy sauce stewed meat products by directly migrating into the food or by improving the flavor of fermented meat products through inhibiting fat oxidation and anti-bacterial effects. Building on this, the paper further elucidates the aroma-imparting and flavor-presenting mechanisms of strong-aroma natural spices, encompassing direct migration of flavor components into food for aroma enhancement, aroma-generating reactions between spice components and food matrices, inhibition of flavor precursor oxidation processes, and suppression of spoilage bacteria growth to ameliorate undesirable flavor formation. The summary of the flavor characteristics and aroma-imparting mechanisms of strong-aroma natural spices facilitates researchers in delving into the mechanisms by which these spices regulates food flavor formation and provides a reference for food enterprises, particularly meat product manufacturers, in further rational development and utilization of natural spices.

Objective To investigate the characteristics of HIV-1 infection among voluntary blood donors in Huzhou City from 2016 to 2022. Methods A total of 233 552 voluntary blood donors in Huzhou, Zhejiang from January 2016 to December 2022 were retrospectively analyzed. Blood donors who were qualified for health examination were required to take EDTA-K2 anticoagulant blood samples by bypass during blood donation. Enzyme-linked immunosorbent assay (ELISA) was used for initial screening and re-examination of HIV antigen / antibody. The results were determined in strict accordance with the criteria in National AIDS Testing Technical Specification(2015 Revision). HIV-1 antibody-positive samples were detected by HIV-1 new infection enzyme immunoassay kit, and the restricted antigen affinity method was used to detect whether the samples were new infections. Samples with CD4 cells > 200 / L and the viral load > 1 000 copies / mL were defined as new infection. The positive rate of HIV-1 antibody in each year was compared. With the positive rate of HIV-1 antibody used as the base, the incidence of new HIV-1 infections among subgroups of HIV-1 antibody positive patients of different types (gender, age, occupation, etc.) was compared. Results From 2016 to 2022, there were 233 552 blood samples from voluntary blood donors in Huzhou, including 15 HIV-1 antibody positive samples, with infection rate of 6.42/100 000, among which 40.00% were newly infected and 60.00% were previously infected. From 2016 to 2022, the HIV-1 infection rate showed a downward trend year by year as 1.62%, 1.24%, 0.63%, 0.31%, 0.30%, 0.28% and 0.27%, respectively. The comparision of new infection rate of HIV-1 in different subgroups of 15 HIV-1 antibody positive patients showed that the new infection rate of HIV-1 in repeated blood donation subgroup was higher than that in the first-time blood donation subgroup, with no statistical difference(P>0.05). The incidence of new HIV-1 infections in males was higher than that in females, but there was no statistically significant difference between groups (P>0.05). Among HIV-1 antibody positive blood donors with different educational backgrounds, the proportion of newly infected individuals with junior high school or below was relatively high, but there was no difference compared to other educational subgroups (P>0.05). There was no statistically significant difference in the incidence of new HIV-1 infections among different occupational subgroups (P>0.05). Conclusion In recent years, the incidence of HIV-1 new infections in Huzhou has decreased year by year, and there is no obvious distribution characteristics of new infections in the subgroups of first-time blood donation and repeated blood donation subgroups, as well as subgroups of different genders, educational backgrounds and occupations.

Copyright of Journal of Chinese Institute of Food Science & Technology / Zhongguo Shipin Xuebao is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Institute of Food Science & Technology / Zhongguo Shipin Xuebao is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science & Technology of Food Industry is the property of Science & Technology of Food Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrometallurgy of China is the property of Hydrometallurgy of China Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The mineral composition and valence state composition of vanadium clinker in vanadium slag and salt-free roasting stage at different temperature nodes were studied by photoelectron spectroscopy and mineral analyzer. The results show that the contents of vanadium spinel, ferroolivine and calciferite decrease with the increase of roasting temperature, while the contents of iron oxide, ferrotitanite and manganese vanadate increase with the increase of roasting temperature. With the increase of roasting temperature, the oxidation of vanadium slag from V3+ to V1+ is gradually transformed into the internal oxidation of V3+ to V1+ and V1+ to V5+. The valence state of vanadium in vanadium spinel is V3+ and the valence state of vanadium in oxidation state is V4+. The mineral analysis results of vanadium slag and clinker are in good agreement with the valence analysis results of vanadium element. [ABSTRACT FROM AUTHOR]

With the continuous expansion of the scale of fish farming in China, feed additives in fish farming have been widely concerned. Chinese herbal additives are widely used in fish farming because of their natural raw materials, small toxic side effects and pollution-free advantages. By discussing the characteristics and application of Chinese herbal additives, this paper expounds the role and application prospect of Chinese herbal additives in fish culture, in order to provide guidance for the application of Chinese herbal additives in fish culture. [ABSTRACT FROM AUTHOR]

In recent years, aerogels have received more and more attention from researchers due to their properties such as low density, high porosity, high specific surface area and low thermal conductivity. Polysaccharide-based aerogel is a solid porous nanomaterial with three-dimensional network structure prepared by using polysaccharide as the precursor material and transforming the liquid phase in the gel with gas phase through a drying method. In addition to the characteristics of traditional aerogel materials, polysaccharide-based aerogels also have the advantages of non-toxicity, easy availability of raw materials, biocompatibility and biodegradability. This article summarizes the preparation methods of polysaccharide-based aerogels, and reviews the properties and applications of different types of polysaccharide-based aerogels prepared with different precursor materials, so as to provide a reference for the research and application of polysaccharide-based aerogel materials in food packaging.

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Clostridium autoethanogenum protein (CAP) is a potential protein raw material that is separated and dried from the residue of ethanol fermentation by Clostridium autoethanogenum. It has high protein content and relatively balanced amino acids, and has important research and application value. The article provides an overview of the characteristics, production process, and application status of CAP, analyzes current research hotspots, and points out future research directions, so as to provide reference for the production and application of CAP. [ABSTRACT FROM AUTHOR]

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Mycosystema is the property of Mycosystema Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the Ming Dynasty, Jiangxi Province was one of the high incidence epidemic areas in China. The epidemic situation was characterized by frequent outbreaks, the spreading from the surrounding areas, the shortening of the interval between outbreaks, the obvious tendency of concentrated outbreaks, the prolongation of the duration, and the expansion of the spreading scope, the areas with high incidence of epidemic along rivers and lakes as well as the main transportation routes, the occurrence of epidemic with the same frequency as floods and droughts. After the outbreak of the epidemics, despite the support of the central government policy, the prefectural governments and local communities in Jiangxi were the main force in the post-epidemic relief. Local officials, squires, wealthy people, rich merchants and doctors became the main body. Measures such as setting up convenient medical bureaus for the people, selecting doctors and applying medicine, setting up granaries to distribute grain, giving wide relief, assisting agricultural production, taking care of patients, abandoning medicine and believing in witchcraft, escaping from the disaster areas were taken. The wide participation and active interaction of officials and people were the guarantee for the successful response to the epidemic. This paper summarizes the features of Jiangxi epidemic in Ming Dynasty and the countermeasures after the disaster to provide historical enlightenment for the prevention and control of the epidemic situation in our country. [ABSTRACT FROM AUTHOR]

Critical zone science has become an important research area in Surface-Earth system science, representing a future new concept and developing trend in Earth system science. The karst critical zone, a unique type, covers approximately 15.2% of the global ice-free continental land, which is a typical case and represents the Earth's critical zone. However, there is still a lack of a unified understanding of the scientific connotation of the karst critical zone (KCZ) and a lack of related discussions on the structure, characteristics and lower boundary of the KCZ at present. On the basis of reviewing the history of the scientific development of the Earth's critical zone and summarizing its main characteristics, this study sorts out the background and development processes of the concept and summarizes the characteristics of the KCZ. The bottom boundary of the KCZ, which is still controversial, is analyzed and discussed, and the further development direction of the KCZ is also analyzed. These results show that the KCZ is a unique type of Earth's critical zone shaped by material circulation and energy flow at the interface of the lithosphere, hydrosphere, atmosphere, biosphere as well as pedosphere in soluble rock areas. The spatial span of the KCZ ranges from the vegetation canopy to the lower boundary of the karst aquifer in the soluble rock area, including the vegetation layer, soil layer, epikarst, vadose zone and saturated zone, which are sensitive to environmental changes and have surface and subsurface double geological structures and special geochemical processes characterized by coupling cycles of carbon, water and calcium. By comparison, the KCZ has eight following characteristics: active involvement of carbonate rock in the material cycle, sensitive response to external environmental changes, multilayer hydrogeological structures, strong horizontal spatial heterogeneity, large underground space network, large-span biota structure, unique ecohydrological processes with carbonate rock water-vegetation interaction as well as varying lateral boundary controlled by subsurface divide change. The bottom boundary of the KCZ is the depth at which the groundwater recharged by precipitation has no influence on the dissolution of carbonate minerals (calcite, dolomite, etc.) and has no ability to further dissolve carbonate minerals (calcite, dolomite, etc.) in a certain range below the surface. According to the development trend of the disciplines and national strategic demands, further attention should be paid to the following four directions: the structure, formation and evolution mechanisms of different types of the KCZ; the ecological service function and regional sustainable development in degraded karst ecological zones; the impacts of engineering activities on the structure, attributes and evolution process of the KCZ; and the coupling process between climate change and the change in the structure, function and attributes of the KCZ.

Objective To analyze the distribution and drug resistance of pathogens in nosocomial infection （NI） among patients in general hospital. Methods 289 pathogenic strains in NI were screened from hospitalized patients. The distribution, classification, and drug resistance were analyzed. Results Among 289 pathogenic strains, 74.05% of them were gram-negative bacilli, 16.96% were gram-positive cocci and 8.30% were fungi. Moreover, 55.10% of gram-positive cocci and 54.21% of gram-negative bacilli were multidrug-resistant organisms （MDRO）, with no statistical difference between two strains （P > 0.05）. There were 95 strains of Acinetobacter baumannii （ABA, 32.87%）, 40 strains of Klebsiella pneumoniae （KPN, 13.84%） and 34 strains of Pseudomonas aeruginosa （PAE, 11.76%） for the common pathogens in NI. The incidence rate of KPN in 2019 was increased more than 4 times compared with that in 2016. The specimens were mainly taken from the lower respiratory sputum, blood, and urine. Most pathogens were detected from ICU, Department of Neurosurgery, Department of Respiratory Medicine and Department of Hematology. Cefoperazone-sulbactam, minocycline and tigecycline exerted better effect on ABA. KPN was less resistant to both amikacin and tigecycline. PAE was also less resistant to aminoglycosides, ceftazidime, cefoperazone-sulbactam and cefepime. Conclusions Gram-negative bacilli are the major pathogens in NI in general hospital, especially ABA, KPN and PAE. These pathogens yield severe multidrug resistance. Multidrug-resistant gram-negative bacilli should be considered for empirical medication.

In order to improve the texture characteristics and soaking efficiency of mung bean, this paper investigated the effect of ultrasound and sodium bicarbonate treatments on the water absorption kinetics, water distribution, water migration, hardness, seed coat structure, total phenol and phytic acid content of mung bean. The effects of ultrasound on the water absorption characteristics, hardness and nutrient content of mung bean depended on the changes in the seed coat of mung bean. Ultrasound treatment with an intensity of 400 W made mung bean epidermis form microporous channels, thus promoting water absorption, increasing the bound and free water contents, reducing hardness and significantly decreasing the total phenol and phytic acid contents (P

Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Terminology is the property of China Terminology Magazine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Mountain Research (10082786) is the property of Mountain Research Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Natural non-metallic minerals are mainly composed of silicate minerals with natural nanoscale layered, porous or fibrous structures, and possess multiple physical and chemical characteristics, such as favorable adsorption capacity, colloidal properly, and ion exchange ability. Natural non-metallic mineral could promote growth performance, protect intestinal health, and improve the quality of products when supplemented into animal feed. Moreover, the administration of non-metallic mineral has potentials to inhibit the pathogenic microorganisms, reduce the transmission of drug resistance genes, and remediate the soil. In this paper, the prope1iies of several non-metallic minerals were introduced, including palygorskite, zeolite and montmorillonite. Meanwhile, the application progresses of dietary non-metallic mineral were emphatically reviewed,and its research frontiers and development prospects in feed were discussed. This review would provide references and insights for the application of dietary non-metallic minerals and health husbandry. [ABSTRACT FROM AUTHOR]

Aiming at stage and discharge relationship affected by the flood rise and fall, it studied and pointed out the defects existing in the previous researches. The differential equation was derived between the difference value of the steady discharge and unsteady discharge and between the unsteady discharge affected by flood rise and fall. The relationship equation was derived between the steady discharge and unsteady discharge under the same stage affected by flood rise and fall. From a new point of view, the conclusion ( the difference value between the steady discharge and unsteady discharge with the same discharge and between the unsteady discharge existed functional relation) was proved again. It was of certain significance to data processing in the stage discharge relationship affected by the flood rise and fall. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Strengthening the research in biology aimed at national strategic needs and major scientific frontier issues is conducive to giving full play to the strategic supporting role of biological research for national economic development and the promotion of international competitiveness. This article combs the basic characteristics and development trend of biology, summarizes the practical experience of international biological research funding, and analyzes the outstanding problems in biological research in China, such as incomplete layout, lack of sustainable and stable support, and insufficient funding for top talents and teams. By referring to the international practical experience, it puts forward policy suggestions to improve the layout of biological research field, strengthen the level of biological research funding, build a biology talent base, strengthen the funding support for basic research talents, and establish a diversified scientific research evaluation and assessment mechanism. [ABSTRACT FROM AUTHOR]

Mixed land use has been widely expected to realize the diversity of production and living functions, further to promote the primary land use for the housing and workplaces. It is necessary to evaluate the nature and spatial layout of land uses for a better compatible ecosystem. However, only a few studies were focused on the mixed use of rural residential land, in terms of the diversity and compatibility of land use. The purpose of this study is to determine the characteristics and driving forces of mixed land use in rural residential land, in order to synergistically improve the land use efficiency, living environment, and industrial development. Three villages (Tangwei, Guxia, and Fulong) were also taken as the examples in Shipai Town, Dongguan City, Guangdong Province, China. A measuring approach was then proposed to fully consider the variety and compatibility of mixed land use using the integrated field research, Point Of Interest (POI) data capture, Geographic Information System (GIS), and remote sensing. The results were as follows. 1) The variety degree of rural residential land was ranked in the ascending order of Guxia, Tangwei, and Fulong Village. Specifically, the diversity of land use was in the ascending order of Guxia, Fulong, and Tangwei village, whereas, the diversity of non-residential functions on residential land was Guxia, Tangwei, and Fulong village, and the variety of business functions on industrial land was Guxia, Tangwei, and Fulong Village. 2) The compatibility degree of rural residential land was Guxia, Fulong, and Tangwei village. Among them, the compatibility of land use was Fulong, Guxia, and Tangwei Village, whereas, the compatibility of activities was Guxia, Fulong, and Tangwei Village. 3) The mixed use degree of rural residential land was Guxia, Fulong, and Tangwei Village, in terms of the integrated variety and compatibility. More importantly, Tangwei Village presented the higher quality of human settlement environment, and the perfect construction of tourism supporting land facilities, indicating a high mixed use degree of rural residential land. This achievement was greatly attributed to rural tourism, as well as rich historical and cultural resources. Although excellent traffic and location conditions, the commercial land that mixed on the residential land was only distributed on both sides of the road in the Guxia village, indicating a low mixed use degree of rural residential land. Driven by the export-oriented economy of the Pearl River Delta, Fulong Village has fully utilized the land resources and policies, such as industry-city integration and renewal to develop industry, thereby promoting the industrial transformation and upgrading, the centralized layout, and transportation infrastructure, indicating a relatively high mixed use of rural residential land. Consequently, the mixed use of rural residential land can be expected to jointly determined by the diversity and compatibility. The demand for rural industrial development can also be greatly contributed to the diversity and compatibility in the rational layout of land use and business types. The findings can provide decision-making on the village planning, for the coordinated promotion of the industrial development and living environment in rural residential land. [ABSTRACT FROM AUTHOR]

Copyright of Food Science & Technology & Economy is the property of Grain Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The H13 steel is widely used in hot rolling, hot extrusion, and hot forging because of its remarkable fatigue resistance performance, hot strength, and impact toughness. To further extend the service life of the steel, the production of high-purity die steel is vital. Carbide-forming elements with a mass fraction of about 8%, including Cr, Mo, and V, are contained in H13 steel to prevent the coarsening of austenite or strengthen the steel through secondary hardening. However, owing to the presence of these elements, primary carbides are easily to be found in H13 steel because of the segregation of carbide-forming elements during solidification. The presence of large primary carbides is one of the main causes of the fatigue crack of H13 steel. Therefore, it is of great significance to systematically study the behavior of primary carbides in H13 steel. The excellent material properties of H13 steel were firstly affirmed in combination with the composition characteristics, and then the relationship between the primary carbides and the service life of H13 steel were summarized. The service life of H13 steel reduces with an increase in the primary carbide size. The hazard of primary carbide on the H13 surface steel is much greater than that inside the steel. The characteristics of primary carbides in H13 steel were further systematically discussed, including two-dimensional (2D) and three-dimensional (3D) morphologies, thermal stability and precipitation mechanism. A great difference exits between the 2D and 3D characteristics of primary carbides. In the 2D analyses, the density of the primary carbides appears high, while their size is small. The actual characteristics of primary carbides can be obtained only by 3D observation. Four primary carbide control methods in H13 steel are compared, including composition optimization, cooling rate control, Mg treatment and rare earth treatment. Composition optimization and cooling rate control have been successfully applied in the actual production process. Rare earth treatment may be an effective control method with Chinese characteristics. The relevant discussion and research work in this article can play a certain enlightening role in the rational control of the primary carbides in H13 steel.

Regarding the target characteristics in marine radar detection, this paper introduces classic radar target characteristics and models, and the main problems associated with the measurement and computation of these target characteristics. From three perspectives, i.e., the target, environment, and sensor, we discuss the target characteristic that have attracted much attention in the field of marine target detection. We discuss the diversity of marine target characteristics, the variety and complexity of the marine environment, coupling effects between the target and the environment, and the main requirements of the typical marine radar in target detection applications. The techniques used in the measurements and computation of target characteristic are also introduced. We propose a multidimensional representation of the target characteristics and briefly discuss its applications.

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Chinese Journal of Oil Crop Sciences is the property of Oil Crops Research Institute of Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的 分析脑出血急性期伴癫痫发作患者的临床特征。 方法 本研究为回顾性研究，纳入2009-2018年住院的既往无癫痫病史的自发脑出血（发病14 d内）患者。根据脑出血急性期是否伴癫痫发作分为脑出血后癫痫发作组和脑出血后无癫痫发作组。比较两组的一般资料及合并高血压、糖尿病、高脂血症、肺部感染、认知功能障碍等疾病的特点，同时分析脑出血后癫痫发作患者的出血部位、侧别、病因等临床特点。 结果 共入组2836例脑出血患者，其中脑出血后伴发癫痫发作者106例，无癫痫发作者2730例。与脑出血后无癫痫发作组患者相比，脑出血后癫痫发作患者年龄较小[（50±17）岁 vs（55±15）岁，P

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