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06 December 2023, Volume 50 Issue Z Previous Issue    Next Issue

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Management & Innovation

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Common Problems in Environmental Quality Reports and Strategies to Improve Writing Quality DOU Daoke, ZHAO Yilin, WANG Aiping, WANG Haichao, ZHANG Hua 2023, 50 (Z):  1-3.  Abstract ( 719 )   Save There are some problems in the process of writing environmental quality reports,such as poor data acquisition,insufficient regional characteristics,and lack of close connection with regional economic and social development and industrial transformation. Targeted suggestions are proposed to strengthen top-level design,complete institutional construction,and create environmental databases. Taking Binhai New Area as an example,by conducting thorough research,closely following economic and social development trends,paying attention to major engineering construction,optimizing comprehensive analysis of environmental quality,and strengthening personnel training,the quality of environmental quality report writing can be effectively improved. References | Related Articles | Metrics

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Lean Quality Management in Manufacturing Process of Non-Standard Products CUI Zhiping, CHEN Jiaan 2023, 50 (Z):  4-5.  Abstract ( 657 )   Save Nowadays,quality competition has become the key to international trade competition. Based on the international history of TZME （Tianjin） Co.,Ltd. and the concept and mode of quality management,this paper introduces the quality management mode of TZME （Tianjin） Co.,Ltd. from the aspects of product positioning,the role of quality management,the construction of quality system and the transformation from quality management to lean quality management. The aim is to inspire small and medium-sized enterprises to think about quality management and occupy international market in the development process,in order to provide reference for small and medium-sized enterprises to improve management mode. References | Related Articles | Metrics

Basic Research

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Influence of Wind Tunnel Nozzle on Vehicle Cooling Performance Evaluation LIU Yulong, GUI Lin, ZHANG Haoyi 2023, 50 (Z):  6-9.  Abstract ( 649 )   Save In order to ensure that the vehicle cooling performance meets the development target,now more car companies use environmental wind tunnels to complete relevant development work in the laboratory,which not only ensures the consistency of verification standards,but also greatly shortens the development time and cost. However,it is undeniable that the external air temperature,humidity,wind speed,sunshine and other environmental parameters simulated by the environmental wind tunnel are different from the actual driving environment of the vehicle. By using vehicle offset to simulate the external environment,the air flow and cooling performance of a side radiator of a minibus were compared when the vehicle was normal and offset,and the test differences caused by the size limitation of the nozzle of the environmental wind tunnel were clarified. Moreover,the evaluation results under the actual external use environment were predicted through data correction in the subsequent vehicle development. References | Related Articles | Metrics

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Design and Research of a New Type of High and Low Voltage Compatible Shore Power Supply System CUI Haobo 2023, 50 (Z):  10-13.  Abstract ( 650 )   Save A new type of shore power supply system which is compatible with high voltage and low voltage is introduced. It integrates high voltage and low voltage shore power system effectively,so that the two sets of shore power systems can realize the stable and effective output of electric energy under the condition of sharing a set of high voltage frequency conversion power supply. By comparing the advantages and disadvantages of domestic and foreign shore power systems,this paper puts forward the RHVC ship shore power frequency conversion power supply,and introduces the application of shore power storage system,shore power monitoring system and other key technologies. Compared with the traditional high-low voltage separated shore power system,the new shore power system obtains the best economic and social benefits with the least investment. References | Related Articles | Metrics

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Research on Efficiency Evaluation of Agricultural Cold Chain Logistics Based on AHP CHEN Yu 2023, 50 (Z):  14-17.  Abstract ( 731 )   Save Cold chain logistics is an important link of ensuring the whole supply chain of agricultural products from producers to consumers. Based on the characteristics of agricultural products themselves,combined with the development status of cold chain logistics of agricultural products in China,the Analytic Hierarchy Process （AHP） is used to quantitatively analyze the problems of cold chain logistics of agricultural products,and the evaluation model of cold chain logistics of agricultural products is established. Countermeasures and suggestions to enhance the development of cold chain logistics of agricultural products are summarized and proposed,in order to provide reference for improving the efficiency of cold chain logistics of agricultural products in China. References | Related Articles | Metrics

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Study on Molecular Mechanism of T-2 Toxin-induced Neurotoxicity LI Daowen, LIU Fang, LI Yuan, HU Pengcheng, LIU Dingkuo 2023, 50 (Z):  18-23.  Abstract ( 601 )   Save T-2 toxin is a neurotoxic mycotoxin,which mainly pollutes crops and their products. PC12 cells have been found to sensitive to T-2 toxins lower than 12 ng/mL,which was manifested as decreased cell viability,increased lactate dehydrogenase （LDH） release accompanied by oxidative stress and mitochondrial damage,and up-regulated Nrf2/HO-1 pathway,inducing decreased mitochondrial membrane potential （MMP） and mitochondrial apoptosis. For the first time,it was found that T-2 toxins could trigger neuroinflammation,manifested as increased expression and translocation of NF-κB and increased secretion of pro-inflammatory cytokines TNF-α,IL-6,IL-8 and IL-1β. In summary,T-2 toxins stimulate PC12 cells to induce apoptosis and inflammation,while oxidative stress plays a key role in the neurotoxic process. References | Related Articles | Metrics

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Research on Improving Safety of Relay Drive Circuit LIU Xinyao, ZHAO Xu, WANG Mengxia, DENG Wei 2023, 50 (Z):  24-27.  Abstract ( 622 )   Save In recent years,with the rapid development of electronic information industry,relays have penetrated into all areas of production and life. At the same time,with the development of new energy electric vehicles,relays are also widely used in electric vehicle charging system design,and have become an indispensable switch control device in circuit design. By studying the driving principle of relays,starting from a safety perspective and combined with the failure mode analysis,the driving circuit of electric vehicle charging line relays is designed,and the relay fault detection method is described. References | Related Articles | Metrics

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Effect of Different Extraction Conditions on Adenosine Detection Results ZHANG Zongyu, DING Juan 2023, 50 (Z):  28-31.  Abstract ( 613 )   Save Due to its medicinal value,the content of adenosine is one of the indicators of some health foods. In different standards,the conditions for extracting adenosine are not exactly the same. The optimal extraction conditions were obtained by comparing the detection results of adenosine under different extraction conditions. References | Related Articles | Metrics

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Research Progress of Tildipirosin,a Novel Animal Antibiotic LI Jing, YANG Yingying, HOU Yating, HAN Dongdong, WANG Han 2023, 50 (Z):  32-35.  Abstract ( 811 )   Save Tildipirosin is a 16-membered macrocyclic ester drug,which is a new type of antibiotic for animals. It has the characteristics of rapid absorption,wide distribution,slow elimination and high bioavailability. The antibiotic has good bacteriostatic action to many kinds of pathogenic bacteria closely related to animal respiratory diseases. The physicochemical properties,pharmacodynamics and pharmacokinetics of tildipirosin are reviewed to provide reference for its application in veterinary clinic. References | Related Articles | Metrics

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Research on Optimization of Robot Electrostatic Spraying Equipment and Key Technical Parameters XIA Yan, WANG Ke, XU Da, QIN Yue, ZHANG Jiawei 2023, 50 (Z):  36-39.  Abstract ( 700 )   Save High voltage electrostatic spraying robot is widely used in automobile spraying industry,its core technical index is spraying coating efficiency. At present，due to the low conductivity of resin materials，irregular shape and other reasons，the spraying efficiency of bumper resin parts is low，resulting in the cost waste in spraying resin parts. This paper introduces the definition and measurement method of coating efficiency in electrostatic spraying of resin parts，studies the cutting-edge electrostatic spraying technology and key technical parameters used in the automotive industry，clarifies the key technologies and optimization methods to improve coating efficiency，and provides suggestions for building a resource saving and environmentally friendly society. References | Related Articles | Metrics

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Research Progress on Traditional Teratogenicity of Permethrin CUI Yao, YANG Yingying, ZHANG Yuliang, CAI Tianning, MENG Xiaobin 2023, 50 (Z):  40-43.  Abstract ( 599 )   Save Permethrin is a highly effective insecticide with low toxicity. The effects of permethrin on embryos or fetuses in the mother’s uterus can be observed through traditional teratogenicity tests,so as to evaluate the embryonic toxicity and teratogenicity of permethrin. The traditional teratogenic tests of permethrin are summarized to provide theoretical reference for further research on reproductive toxicity of permethrin. References | Related Articles | Metrics

Applied Technology

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Development and Application of Sand Control Packer for Heavy Oil Thermal Recovery ZHANG Lun, NI Tao, XU Fengxiang, ZHANG Wenbo, LI Jiang 2023, 50 (Z):  44-47.  Abstract ( 702 )   Save The heavy oil reservoirs in Bohai Oilfield account for more than 50% of the total. However,the viscosity of the heavy oil itself is high and it is difficult to recover. The usual practice is to inject high temperature and high pressure steam into the wellbore to reduce the viscosity of the heavy oil,which requires minimal heat loss after steam reaches the reservoir. Moreover,the heavy oil reservoir is shallow,the reservoir cementation is loose and sand production is easy,and the high temperature huff and puff aggravates the sand production,conventional packers cannot meet the strict requirements of long-term sealing required for heavy oil thermal recovery. In order to solve this world-class problem in the industry,based on the current situation of heavy oil development and exploitation,through structural design,finite element theory analysis and indoor testing,this paper has successfully developed a heavy oil thermal recovery sand control packer that can withstand eight cycles of cold and hot alternation. The results show that it can meet the demanding performance requirements of heavy oil development and exploitation for thermal recovery long-term sand control tools. At present,the research results have been successfully applied in the field,which is of great significance for the large-scale exploitation of heavy oil fields and the production of 40 million tons in Bohai Oilfield. References | Related Articles | Metrics

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Management System for Dealing with Automobile Abnormalities Based on Abnormal Bolt Torque Monitoring LYU Gang 2023, 50 (Z):  48-51.  Abstract ( 574 )   Save At present,in the process of automobile manufacturing,there are a large number of methods to use bolt fastening as part connection,which involves a lot of parts that need key quality control,and the operation quality assurance of these parts is particularly important. If poor quality is discovered through on-site operation in the market,it will cause irreversible losses to users and vehicle enterprises. Therefore,starting from the research on torque anomaly management methods for automobile assembly and inspection,based on the overall perspective of the factory,this paper elaborates on the management mode,process document system,and pokayoke technology for controlling torque anomalies,and creates an anomaly handling management system for automobile manufacturing enterprises. References | Related Articles | Metrics

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Research on Segmented Construction Layout and Construction Technology of Offshore Wind Power Booster Stations MENG Fanba, LI Pei 2023, 50 (Z):  52-56.  Abstract ( 579 )   Save The offshore booster station is the heart of offshore wind farms,and its importance to the entire wind farm is self-evident. The booster station should have a “turnkey” engineering status during the land construction phase. The scientific and reasonable basic strategy of the land construction unit regarding the overall layout and segmented division during the construction of the offshore booster station has a significant impact on the convenience and cost of its later construction. Based on the practical experience in the construction of booster stations,a detailed process study is conducted on the overall layout （orientation and layout height）,segmented division,and layout of segmented construction during the land construction phase of the booster station. Overall process considerations for the layout of the booster station can meet the requirements of the construction cycle and site,and also provide technical support for shortening the construction cycle and controlling construction costs. References | Related Articles | Metrics

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Design of Hierarchical Modeling Scheme for Smart Port Data Based on Data Warehouse HAN Yanbao 2023, 50 (Z):  57-60.  Abstract ( 625 )   Save In the process of port operation,the collection,cleaning,mining and analysis of data provide technical support for the fine management of the port,which is an important part of realizing the world-class port. This paper introduces the technical principle of data warehouse and the characteristics of smart port business data and points out the problem of information island in the process of smart port operation. By deeply mining and analyzing data,the smart port data warehouse solution is researched and designed,and successfully applied to multiple upper layer systems to achieve the goal of improving the status quo of information islands and optimizing management. References | Related Articles | Metrics

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Discussion on Scheme of Safety Shutdown after Disconnection of Turbo-generator HU Feng 2023, 50 (Z):  61-63.  Abstract ( 629 )   Save Generally,the generator-transformer unit protection of 200 MW thermal power units is equipped with program reverse power protection,but in special situations such as generator disconnection,safe shutdown faces risks. In order to prevent power production accidents,the requirements for unit shutdown and disconnection among the 25 key requirements are introduced. On the basis of analyzing the problems of safe shutdown after the disconnection of the turbo-generator,the feasible solutions are discussed. References | Related Articles | Metrics

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Thoughts on Design Technology of Large-size Non-standard Mechanical Equipment ZHANG Jie 2023, 50 (Z):  64-66.  Abstract ( 632 )   Save Large-size non-standard continuous material handling mechanical equipment （hereinafter referred to as “large- size non-standard mechanical equipment”） is a general term for equipment for excavation,loading and unloading,stacking and conveying,which is usually composed of spreader,stacker,reclaimer,stacker-reclaimer,belt conveyor and other large equipment,and widely used in ports,docks,steel,mining,metallurgy,thermal power,storage and other industries. It is not only customized equipment in accordance with actual needs,but also a complex system technology engineering,which is subject to the personnel,equipment,materials,methods and the environment during the design and manufacturing. This paper explores and expounds the design technical problems of large-scale non-standard mechanical equipment,aiming at providing reference for manufacturing and design of large-scale non-standard mechanical equipment. References | Related Articles | Metrics

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Design,Installation and Debugging of an Automatic Detection Equipment for Primer Spraying XU Da, QIN Yue, XIA Yan 2023, 50 (Z):  67-69.  Abstract ( 603 )   Save The production characteristics and process characteristics of bumper painting are described,the differences in the gray values between the bumper substrate and the sprayed black primer under different exposure levels are compared,and the application effect of determining the spraying quality of black primer by gray value is verified by adjusting the ambient illumination and exposure experiment. The installation,debugging and improvement methods of automatic testing equipment are introduced,which provides theoretical reference and practical basis for automatic testing of primer spraying quality in painting industry in the future. References | Related Articles | Metrics

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Applied Research of Artificial Intelligence Technology in Vehicle Pattern Automatic Detection System MIAO Xin 2023, 50 (Z):  70-73.  Abstract ( 639 )   Save The components and functions of the AI-based automatic vehicle detection system include：AVI （Assembled Vehicle Indication） system used for outputting vehicle numbers;PI （Pokayoke） terminal connected to the AVI system via a signal network;a large screen display system connected to the PI terminal via a signal network,used for displaying processed data;and a grid system connected to the PI terminal via a signal network,used for detecting the position of the wheels. The system uses intelligent cameras for deep detection,achieving automation in vehicle style inspection and recognition,and improving quality assurance and production efficiency. References | Related Articles | Metrics

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A Deep Blind Hole Precision Machining Technology for Small Diameter Cylinder Blocks YANG Zhichao, ZHAI Jiangtao, SHI Jinhui 2023, 50 (Z):  74-77.  Abstract ( 594 )   Save Lightweight thin-wall cylinder parts are difficult for heavy lathe processing,especially for high-precision cylinder with deep blind holes. This paper introduces the manufacturing process of deep blind hole in cylinder block,especially the machining process of high precision hole bottom arc and bottom surface. In order to solve the problem of alignment of the cylinder block on the heavy-duty lathe clamping clamp,the cylinder block support frame sleeve was reformed and designed,and the cylinder block and support sleeve were assembled and hoisted to the machine tool to ensure alignment error less than or equal to 0.05mm. The boring bar is installed on the machine tool and the guide wood is installed on the boring head to finish the finishing of the deep blind hole. In order to solve the problem of deep hole bottom arc R60 and hole bottom surface roughness Ra3.2,the existing tool was reformed,and the hole bottom arc R60 and hole bottom surface were roughed and semi-finished. At the same time,the combined special tool was designed and manufactured to be installed in the tool holder,and the feed was recorded with a scale to finish the hole bottom arc R60 and hole bottom surface. Through the manufacturing of the deep blind hole,the dimensional accuracy of the deep blind hole is finally guaranteed,and the roughness requirements of the bottom arc R60 and the bottom surface of the hole are also guaranteed. The processing efficiency is improved,the processing cycle is shortened,the manufacturing cost is reduced,the assembly performance requirements are met,and the product quality is guaranteed. References | Related Articles | Metrics

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Influence and Countermeasures of High Pressure Heater Out of Service on SCR Unit in 320 MW Unit Operation WANG Fuguo, TIAN Ye 2023, 50 (Z):  78-80.  Abstract ( 587 )   Save SCR flue gas denitration technology has been widely used in China’s thermal power plants because of its maturity and reliability. SCR devices have strict requirements for inlet flue gas temperature. The decrease of boiler feed water temperature will directly lead to the decrease of flue gas temperature. How to ensure the normal operation of the SCR device after the high pressure heater out of service has become an urgent issue for the majority of thermal power plants. This paper makes a large amount of data statistics and analysis for the operation of the 320 MW unit in a plant,and summarizes the operation measures of high pressure heater out of service or put into service that can ensure the safe operation of the SCR device. It is of guiding and reference significance to ensure the safe operation of denitration system in thermal power plant. References | Related Articles | Metrics

Science & Society

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Epidemiological Investigation and Virulence of Porcine Epidemic Diarrhea Virus YOU Yongjun, LIU Sitong, WANG Xing, PAN Jing, QIU Zhenna 2023, 50 (Z):  81-87.  Abstract ( 742 )   Save In order to grasp the prevalence of PEDV in China, a total of 908 clinical diarrhea samples from 160 sites were collected from August 2020 to May 2023,and PEDV antigen detection was performed by qPCR. Some samples were selected for S gene sequencing and analysis,and two prevalent strains of group GⅡ were isolated. The pathogenicity of these two strains was also studied. The results showed that the positive rate of PEDV was 50.7% （460/908） in disease samples and 68.8% （110/160） in pig farms,indicating that a large part of pigs with clinical diarrhea symptoms were caused by PEDV. The analysis of S gene showed that the current prevalence of PEDV in China was mainly in group GⅡ,accounting for 90.3% （65/72） ,while group GⅠ showed sporadic incidence,accounting for 9.7% （7/72） . Two viral strains of Group GⅡ were successfully isolated and obtained,both of which had pathogenicity to fattening pigs of 3-4 months of age. The experimental pigs were attacked orally,33%-67% of the pigs could have diarrhea,100% of the experimental pigs were infected and sustained detoxification,and the longest detoxification time could reach 13 days after the challenge. The epidemiology,genetic variation and pathogenicity of PEDV were studied in this study,which provided a basis for disease prevention and control and product development. References | Related Articles | Metrics

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Status and Countermeasures of Biodiversity Conservation in Beidagang Wetland WANG Deyue, SUN Xiaoning 2023, 50 (Z):  88-90.  Abstract ( 683 )   Save The natural environment and biodiversity of Beidagang wetland nature reserve in Tianjin are introduced,and the main threats of Beidagang wetland biodiversity are analyzed,including：serious invasion of alien species,more frequent human activities and lack of stable guarantee of ecological water use in wetlands. At the same time,the corresponding protection countermeasures are put forward,including：improving the management and protection system of protected areas;strengthening the monitoring and management of alien invasive species;implementing water environmental treatment and water ecological restoration;constructing a diversified monitoring system,etc. References | Related Articles | Metrics

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Analysis of Occupational Health Examination Results of Dust Workers in Binhai New Area,Tianjin in 2022 HUANG Zhen, ZHANG Bingxu 2023, 50 (Z):  91-94.  Abstract ( 640 )   Save In order to investigate the occupational health status of dust workers in Binhai New Area of Tianjin,and to provide scientific basis for the formulation of occupational disease prevention strategies,data on on-the-job physical examinations of dust workers in Binhai New Area in 2022 were collected and analyzed using Excel 2016 and SPSS 22.0. The results showed that a total of 22,428 dust workers were included in the physical examination in 2022. Among them,43 were abandoned in the examination of high kV chest X-ray or DR chest X-ray,19 were abandoned in the examination of lung function,and a total of 22,367 were included. 2 cases （0.009%） were found to be suspected of pneumoconiosis,85 cases （0.38%） were found to be occupational contraindications,and 1 case （0.004%） were found to be pneumoconiosis. The abnormal detection rate of chest radiograph was 30.5%,and the abnormal detection rate of lung function was 0.058%. The detection rate of abnormal lung function and chest radiograph of dust workers in this area increases with the increase of exposure years. Attention should be paid to the prevention of occupational pneumoconiosis by strengthening the publicity and education of dust workers in large enterprises,especially for workers with long working years to prevent the occurrence of occupational pneumoconiosis. References | Related Articles | Metrics

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Research on TEDA Science Popularization Education Model under Cooperation Background of Home,School,Society and Government ZHAO Liqun 2023, 50 (Z):  95-98.  Abstract ( 656 )   Save To implement the spirit of “technological innovation and science popularization are the two wings of innovative development,so science popularization should be looked as same important as the scientific and technological innovation”,it is necessary to strength the coordination ability of home,school,society and government,while grasping the main battlefield of science education at the same time. The characteristics and significant results of the science popularization education model of “one union,three classes,five aims and seven abilities” under the collaborative education model of family,school,society and government in Taida Street are elaborated. References | Related Articles | Metrics

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Characteristics Analysis of Mesoscale Oceanic Cold Eddy during Super Typhoon Lekima (1909) XIA Tianzhu, BU Shengtian, LI Xiaoxia, YU Runling, HU Chao 2023, 50 (Z):  99-102.  Abstract ( 682 )   Save The characteristics of sea level anomaly （SLA） in the Northwest Pacific Ocean and mesoscale oceanic cold eddy near the typhoon path during Super Typhoon “Lekima” were analyzed. The results show that：（1） The SLA was mainly positive in the Northwest Pacific Ocean during “Lekima”,the value of negative SLA closed area C1 decreased and the scope expanded,the change of negative SLA closed area C2 was not obvious. （2） “Lekima” traversed mesoscale cold eddy CE1 at the speed of 6.4-10.8 km/h,the intensity and scope of CE1 were strengthened during and after the displacement,the maximum SLA was -19.6 cm. It quickly moved near the east of CE2 at the speed of 13.9-20.4 km/h,the intensity and scope of CE2 didn’t change significantly. （3） CE1 and CE2 were both located in the forcing region of “Lekima”,it had long influence on CE1 about 18-42 hours which increased the intensity and scope of CE1,but had no obvious effect on CE2. References | Related Articles | Metrics

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On Deep Integration of Information Technology with Education and Teaching HU Shuang 2023, 50 (Z):  103-107.  Abstract ( 664 )   Save The deep integration of information technology with education and teaching is an inevitable trend in the development of information technology today,and it is also the only way to achieve the modernization of national education. However,there are still some problems with deep integration,such as lack of depth,lack of textbooks,and lack of corresponding modern education and teaching management platforms. By analyzing the current situation of the integration of information technology with education and teaching,it is pointed out that it is necessary to strengthen basic theoretical research,cultivate students’ community living abilities,comprehensively innovate the education evaluation system,and introduce business models to achieve social diversity,synergy,and deep integration. In order to cultivate students’ patriotism,focus on their core competencies,and respect their individual differences,it is urgent to introduce corresponding evaluation standards and supervise educational institutions to consciously promote deep integration work. References | Related Articles | Metrics

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Analysis of Agronomic Traits and Yield of Different Soybean Varieties in Coastal Saline-alkali Soil ZHENG Rumei, ZHANG Xinhong, ZHANG Yumei, ZHANG Bo, XIAO Hui 2023, 50 (Z):  108-111.  Abstract ( 681 )   Save The soybean varieties with salt-alkali tolerance are the key factor of steadily developing and utilizing the saline-alkali soil to plant soybean. 10 soybean varieties were tested in coastal saline-alkali soil. The main agronomic traits and yield of the tested varieties were analyzed using analysis of variance,coefficient of variation,adaptive parameter and high stable coefficient. The results show that “Zhongdou 63” has good comprehensive characters and high-stable yield in saline-alkali soil. “Qihuang 34” has prominent yield advantages and strong yield potential. References | Related Articles | Metrics

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Exploration on Implementation of Modern Enterprise Education in Middle School under Background of “Double Reduction” Policy ZHANG Yang, LU Biao, ZHOU You, ZHENG Jianliang 2023, 50 (Z):  112-115.  Abstract ( 650 )   Save In July 2021,the General Office of the CPC Central Committee and The General Office of the State Council issued the Opinions on Further Reducing the Burden of Homework and Off-campus Training for Students in the Compulsory Education Stage,clearly proposing to build a good education ecology and promote the all-round development and healthy growth of students. This paper explores the implementation of modern enterprise education in middle schools under the background of “double reduction” policy. The purpose of modern enterprise education in middle schools is to help young people cultivate and stimulate their interest in learning in different fields in the education stage,“career” leads to the future. References | Related Articles | Metrics

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Situation and Countermeasures on Environmental Protection in Beidagang Wetland Nature Reserve KONG Wenliang, GAO Xiangyan, SUN Jiaxing 2023, 50 (Z):  116-118.  Abstract ( 653 )   Save Beidagang Wetland Nature Reserve has implemented some wetland ecological environment protection projects,including water environment improvement,wildlife protection and restoration and habitat protection. The ecological function of wetlands is stable and improving. Wetland protection funds rely on government investment. The ecological utilization value and social benefits potential of wetlands have not yet been released. In order to achieve a virtuous cycle of natural ecology and environmental protection in the Beidagang Wetland Nature Reserve,it is necessary to cultivate professional talents,introduce cost-effective social capital and reasonably utilize wetland ecological resources. References | Related Articles | Metrics

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Application of Enrofloxacin in Veterinary Clinic YANG Yingying, LI Yuhan, HOU Yating, LI Qifeng, MENG Xiaobin 2023, 50 (Z):  119-122.  Abstract ( 795 )   Save Enrofloxacin is a chemically synthesized third-generation quinolone specific antibiotic for animals. Because of its wide antibacterial spectrum,safe and reliable efficacy,it is widely used in the treatment of bacterial and mycoplasma infections in livestock,poultry,pets and aquatic products. This paper reviews the physicochemical properties,antibacterial effects,clinical applications,and adverse reactions of enrofloxacin,in order to provide reference for the scientific and rational application of enrofloxacin in veterinary clinical practice. References | Related Articles | Metrics