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In order to solve the problems of complex detection scene, low detection accuracy and high computational complexity of tomato leaf pests and diseases in natural environment, a deep learning algorithm SLP-YOLOv7-tiny was proposed. Firstly, part of the 3×3 convolution Conv2D Convolution in the backbone feature extraction network is changed to distributed migration convolution DSConv2D (2D Depthwise Separable Convolution) to reduce the computing load of the network and speed it up. Less memory usage; Secondly, the parameter-free attention module (SimAM) was integrated into the backbone feature extraction network to enhance the model's ability to effectively extract and integrate features of pests and diseases. Finally, the original YOLOv7-tiny CIOU loss function is replaced with Focal EIOU loss function to accelerate the model convergence and reduce the loss value. The test results show that The overall identification accuracy, recall rate, average accuracy mAP0.5 (the average accuracy when the IOU threshold is 0.5), and mAP0.5 ~ 0.95 (the average accuracy when all values of the IOU threshold are averaged between 0.5 and 0.95) of SLP-YOLOv7-tiny model are 95.9%, 94.6%, and 98, respectively Compared with YOLOv7-tiny before the improvement, they respectively increase by 14.7, 29.2, 20.2 and 30 percentage points. Meanwhile, the calculation amount decreases by 62.6% and the detection speed increases by 13.2%. Compared with YOLOv5n, YOLOv5s, YOLOv5m, YOLOv7, Yolov7-Tiny, Faster-RCNN and SSD target detection models, mAP0.5 improved by 2.0, 1.6, 2.0, 2.2, 20.2, 6.1 and 5.3 percentage points respectively. The computing capacity was only 31.5%, 10.6%, 4.9%, 4.3% and 3.8% of YOLOv5s, YOLOv5m, YOLOv7, father-RCNN and SSD. The results show that SLP-YOLOv7-tiny can accurately and quickly detect tomato leaf diseases and pests, and the model is small, which can provide certain technical support for the development of rapid and accurate detection of tomato leaf diseases and pests.SLP-YOLOv7-tiny can be expected to accurately and rapidly detect the tomato leaf diseases and insect pests. The small model was more conducive to the migration application. A comparison was also performed on the detection performance of different attention mechanisms. The SimAM attention mechanism shared the better screening of effective feature information on the YOLOv7-tiny model. The disease spots were identified to effectively improve the accuracy of the model, compared with the SENet and CBAM attention mechanism. The ablation test was carried out to verified the added module. The high detection accuracy and computational efficiency were suitable for the deployment in the natural environment with the limited computing resources, such as mobile terminals. The visualization of model detection show that the SLP-YOLOv7-tiny model can be used to learn and distinguish the fine features of tomato leaf disease spots. The detection accuracy was also better than that of the YOLOv7-tiny model. Moreover, the SLP-YOLOv7-tiny model can be used to accurately identify the diseases and pests of diseased tomato leaves in the natural shooting environment. The high detection accuracy can be applied for the multiple diseases and pests. The better identification was also obtained for the small features in the similar diseases and pests. The finding can provide the technical support for the rapid and accurate detection of tomato leaf diseases and insect pests. [ABSTRACT FROM AUTHOR]

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To reveal the effects of nicotinamide phosphoribosyltransferase (Nampt) and high glucose and high insulin (HG+HI) microenvironment on proliferation and metastasis of human cisplatin-resistant lung cancer cell lines. Human cisplatin resistant cell line A549/DDP was divided into 6 groups (n=6): control group, high glucose and high insulin intervention group (HH, cultured with 30 mmol/L glucose and 500 mU/L insulin for 72 h), sh-NC and sh-Nampt transfected groups (Lipofectamine 2000 was used to transfect sh-NC and sh-Nampt into cells respectively, the transfection time was 48 h), HH intervention sh-NC and sh-Nampt groups (HH+sh-NC and HH+sh-Nampt). Each group had 6 replicates. The transfection efficiency was detected by qRT-PCR. Cell proliferation was detected by MTT method, apoptosis was detected by flow cytometry, cell migration and invasion were detected by Transwell, Nampt mRNA was detected by qRT-PCR, and protein expression of Nampt, Bcl-2, Bax, MMP-2, MMP-9, p-PI3K, PI3K, p-AKT and AKT were detected by Western blot. Compared with control group and sh-NC group, the expression level of Nampt mRNA and protein, relative cell viability, the number of migratory and invasive cells decreased, the rate of apoptosis increased, the expression level of Bcl-2, MMP-2, MMP-9, Nampt, p-PI3K and p-AKT protein decreased, and the expression level of Bax protein increased in sh-Nampt group (P<0.05). Compared with control group and sh-NC group, the expression level of Nampt mRNA and protein, relative cell viability, the number of migratory and invasive cells increased, the expression level of Bcl-2, MMP-2, MMP-9, Nampt, p-PI3K and p-AKT protein increased, and the expression level of Bax protein decreased in HH group and HH+sh-NC group (P<0.05). Compared with HH group and HH+sh-NC group, the expression level of Nampt mRNA and protein, relative cell viability, the number of migratory and invasive cells decreased, the rate of apoptosis increased, the expression level of Bcl-2, MMP-2, MMP-9, Nampt, p-PI3K and p-AKT protein decreased, and the expression level of Bax protein increased in HH+sh-Nampt group(P<0.05). High glucose and high insulin microenvironment may induce proliferation and metastasis of human cisplatin-resistant lung cancer cells by up-regulating Nampt/PI3K/AKT signaling pathway. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of Soil & Water Conservation is the property of Bulletin of Soil & Water Conservation 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 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.)

【目的】探讨白蛋白对近端肾小管上皮细胞（PTCs）增殖与凋亡的影响。【方法】用不同剂量（0．1，0．5，1，5，10，30mg／mL）去脂牛血清白蛋白（dBSA）超载体外培养的NRK52E，dBSA 0mg／mL作为对照。细胞增殖活性用MTS比色法检测和显微镜观察。细胞凋亡检测：荧光染料DAPI染核，DNA梯带实验，原位末端标记（TUNEL）实验和苔盼蓝染色计数。【结果】高剂量dBSA超载未完全融合NRK52E细胞144h后细胞变得更密集。MTS比色结果发现，高剂量dBSA（5、10、30mg／mL）超载可明显诱导NRK52E细胞增殖，增殖活性分别为（0．700±0．045）A、（1．021±0．029）A和（1．273±0．173）A，较对照细胞（0．441±0．020）A显著升高，P均〈0．05。高剂量dBSA超载的NRK52E细胞，有较多出现核碎裂和核固缩，有较强DNA梯带和原位末端标记信号。苔盼蓝染色计数发现，高剂量dBSA（5、10、30mg／mL）超载NRK52E细胞72h的死亡细胞数[（680000±28618）／mL，（970000±52915）／mL和（1132500±88954）／mL较对照的死亡细胞数[（312500±28395）／mL]显著升高，P均〈0．05；而且死亡细胞数呈剂量依赖性。【结论】白蛋白超载NRK52E细胞既可诱导细胞增殖，又可诱导细胞凋亡。

Objective To analyze the epidemic characteristics of other infectious diarrhea in Fuyang from 2016 to 2020, and to provide the basis for the formulation of prevention and control measures. Methods Other infectious diarrhea cases reported in Fuyang city from 2016 to 2020 in the "China Disease Prevention and Control Information System" were analyzed using descriptive epidemiological method. Results A total of 47 396 cases of other infectious diarrhea were reported in Fuyang from 2016 to 2020, with an average annual incidence of 117. 17/100 000. There was a statistically significant difference in incidence(X²=1 223.17, P< 0. 01). At its peak in June to August, there were cases reported in 8 counties. The average annual incidence of the top three were Jieshou Country (199.38/100000), Funan County (179.39/100 000) and Yingquan Country (162.97/100 000);The highest incidence was in the under-5 age group, accounting for 21.34% of all casessmale was higher than female(X²=4 961.97, P<0.01), and the male-female ratio was 1. 13:1. About 94.02% of the total number of reported cases are mainly farmers, scattered children and students. Conclusion In recent years, the incidence of other infectious diarrhea in Fuyang city has increased every other year. The prevention and treatment of other infectious diarrhea and health education should be carried out in the period of high incidence for key areas and population groups, while strengthening monitoring. effectively reduce the incidence of other infectious diarrhea. [ABSTRACT FROM AUTHOR]

Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology 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 Test & Measurement Technology is the property of Publishing Center of North University of China 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 Forensic Science & Technology is the property of Institute of Forensic Science, Ministry of Public Security 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 Natural Disasters is the property of Gai Kan Bian Wei Hui 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 Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu 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 Experimental Technology & Management is the property of Experimental Technology & Management 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.)

Vegetable pot seedling transplantation has many advantages, such as high survival rate, promoting crop early maturity and improving land use rate. Mechanized transplanting of vegetable can be divided into semi-automatic transplanting and fully-automatic transplanting. Semi-automatic transplanting is mainly carried out by feeding the seedlings into the seedling transplanter manually, which has low efficiency and high labor intensity, and it is not conducive to field operations. At present, the automatic transplanting machine mainly adopts multiple mechanisms to complete a series of actions such as picking up seedling, conveying and planting, but it has the disadvantages of complex structure, high cost and low efficiency. In order to simplify the structure, the way to complete the transplanting operation with a single mechanism is proposed. However, due to the complicated working trajectory of transplanting vegetable seedling and much posture requirements, the transmission ratio of the mechanism is required to be changed greatly, which resulting in the irregular shape of the non-circular gear section of the single planetary gear is not conducive to processing and affects the transmission performance of the gear. A double-planetary non-circular gears linkage of vegetable pot seedling transplanting mechanism is proposed to solve the problem mentioned above in this paper. The transmission part of transplanting mechanism is composed of planetary gear train mechanism and crank rocker mechanism, The main planetary frame rotates at a uniform speed, through the transmission of internal gears and connecting rods, the unequal transmission of non-circular gear system and the periodic variable-speed swing of crank-rocker mechanism are superimposed, which makes the sub-planetary frame swing with respect to the main planetary frame and the transplanting arm rotate with respect to the sub-planetary frame, thus the transmission ratio needed to realize the complex transplanting trajectory and posture is obtained. Non-uniform B-spline curve is applied to fit the pitch curve of non-circular gear to obtain closed, smooth and continuous pitch curves, and the mathematical model of gear train is established based on coordinate transformation theory. Based on the development platform of Matlab, an optimization program is compiled to analyze the effect of transmission case noncircular gear pitch curve and crank rocker mechanism on the shape of trajectory. Further, the effects of the structure and position parameters of the gears and transplanting arm on the target parameters of the transplanting trajectory are analyzed. According to the requirements of 220 mm planting spacing, 120 mm seedling height and 40 mm deep pot for celery transplantation, a set of sharp beak trajectory that satisfies the requirements of the operation posture of picking up seedling and planting is optimized. The optimizing values are that the length of the picking up seedling trajectory is 33 mm, the distance from the lowest point of the trajectory to the lowest point of the planet carrier is 55 mm, the angle of picking up seedlings is 23°, the angle of change in the process of picking up seedlings is 16°, the angle of planting seedlings is 65°, the whole height of the trajectory is 355 mm, and the height of the buckle of the moving trajectory is 125 mm. A three-dimensional model of the mechanism is built and a virtual simulation is performed based on the optimization result. The results show that the simulated trajectory and velocity of the transplanting mechanism are basically consistent with the theoretical results. The trajectory and postures of the transplanting arm are analyzed by a test bench, industrial camera and image processing software. The results show that the trajectory of seedling-taking and seedling-pushing sections coincides with the simulation trajectory basically and the theoretical data, and the error is within 2 mm, which can meet the requirements of transplanting operation, the transplanting mechanism designed is reasonable and feasible. [ABSTRACT FROM AUTHOR]

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 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.)

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Copyright of Secretary (16742354) is the property of Secretary 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 media plays an important role in laboratory opening management. Asymmetric information and poor communication have aggravated the contradiction between supply and demand of equipment，and affected the quality of laboratory opening and students^enthusiasm for creation. Media environment，managers and students^habit determine the choice and use of media. As a mobile office platform，Dingtalk can make the laboratory managers who do not have the capability of technology development complete the design and development of relevant applications. By the platform，a mobile open system is built to achieve totally open in laboratory contents，equipment and management， it is suitable to the changing of student U media behavior in the mobile Internet environment. The applications and practice of the platform in the Media Opening Laboratory of Chongqing University，contain to deploy related equipment booking module， lab reservation module and undergraduate innovative experiment projects submitting module. The platform can also enhance the collaboration efficiency and bring some references for other opening laboratories in the new media era. [ABSTRACT FROM AUTHOR]

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 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.)

For rice seedling transplanting, there are more than 5 kinds of planting patterns in China, including equal row carpet seedling transplanting, wide-narrow row carpet transplanting, equal row pot seedling transplanting, wide-narrow row pot seedling transplanting, and semi-pot seedling transplanting. The zigzag wide-narrow row rice seedlings transplanting is a new method of planting adjacent rows of rice seedling alternately, and distributing wide and narrow rows. This kind of planting method absorbs the merits of traditional equal row pot seedling planting, wide-narrow row carpet seedling planting and zigzag planting. The pattern of zigzag and wide-narrow row pot seedling transplanting can increase the light penetration and ventilation of the paddy-field, which brings some advantages such as reducing the plant diseases and insect pests, increasing lodging resistance ability of rice and improving the rice yield and quality for rice production. In this paper, a variable and differential transplanting mechanism for zigzag wide-narrow row rice pot seedlings was presented. This mechanism consists of 2 major parts that are transmission case and gear case. There are 10 gears, including 2 pairs of noncircular gears, 2 pairs of bevel gears as well as one pair of spur gears, employed to transform one input constant rotational speed into 2 output rotational speeds which are used to drive the noncircular gear case. Based on the non-uniform and spatial transmission of differential gear train, this mechanism can achieve a special figure-eight spatial-shaped trajectory, which can meet the kinematic requirements of zigzag wide-narrow row pot seedling transplanting. In order to obtain closed, smooth and continuous pitch curves, non-uniform B-spline curve was applied to fit the pitch curve of non-circular gear, and the mathematical model of gear train in gear case was established based on coordinate transformation theory. Moreover, the trajectory and attitude requirements of the zigzag wide-narrow row pot seedling transplanting were parameterized into 9 specific kinematics optimization objectives. Based on the development platform of MATLAB GUI, an optimization program was compiled to analyze the effect of transmission case noncircular gear pitch curve and gear case noncircular gear pitch curve on the shape of trajectory. Further, the effects of the structure and position parameters of the gears and transplanting arm on the target parameters of the transplanting trajectory were analyzed. By human-machine interaction, a group of structural parameters including data points of pitch curves meeting the requirements were optimized. Using these parameters, a 3D (three-dimensional) model of the mechanism was built, and virtual simulation was carried out. The simulation trajectory and velocity data of the transplanting arm clip were basically consistent with theoretical results. The parts of the right transplanting mechanism were processed and assembled. The trajectory and attitude of transplanting arm were analyzed by test bench, industrial camera and image processing software. The results were consistent with the theoretical data, which verified the feasibility of the transplanting mechanism and the rationality of the structure. [ABSTRACT FROM AUTHOR]

Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology 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 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.)

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control 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 Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology 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 lab study for routing and switching technology generally needs the support from a certain number and different types of physical devices and networking environment，but in most cases，teachers and learners dont have the ability to buy the physical devices and to build networking environment. The paper uses Cisco Packet Tracer free software and open source project GNS3 open source software as simulator and implements to give the integrity lab solution for routing and switching technology on the background of campus network in single machine environment + it can provide the network configuration requirements of campus network and the network topology structure. The paper compares and discusses the use process of two kinds of simulator software from three aspects including routers，switches， terminal equipment，and provides the design thought and the configuration reference for otlier comprehensive lab about routing and switching technology in single machine environment [ABSTRACT FROM AUTHOR]

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