bluuebunny/crossref_metadata_2025 huggingface dataset:
The association between psoas muscle area index and morbidity/mortality in laparoscopic gastric cancer surgery
Authors: Turgut Emre , Zengin Akile , Bag Yusuf , Kaplan Kuntay , Gunes Orgun , Karatoprak Sinan , Sumer Fatih , Aydin Cemalettin , Kayaalp Cuneyt
Published: July 2022

As advanced gastric cancer often leads to obstruction or cancer-related cachexia, gastric cancer seems to have a closer association with sarcopenia than other types of cancer. Our study aim was to investigate the relationship between the psoas muscle area (PSMA) and morbidity and mortality in patients undergoing gastric cancer surgery. The data of patients who underwent laparoscopic gastric resection between November 2014 and April 2020 were analyzed retrospectively. The intervertebral disc space was verified at L3-4 in the sagittal plane. The PSMA on the right and left sides were measured separately and then added to obtain the total PSMA. This value was then divided by the patient's height (m2) to calculate the psoas muscle area index (PSMAI) (mm2/m2). The mean PSMAI of men (741.1 mm2/m2) was significantly higher than that of women (502.1 mm2/m2) (p<0.001). While there was a positive correlation between the PSMAI and BMI (r:0.352, p:0.019 in women; r:0.447, p<0.001 in men), the correlation between PSMAI and age was negative (r: -0.369, p:0.014 in women; r:-0.349, p<0.001 in men). PSMAI was statistically lower in patients with attendant morbidity (p:0.035). There was no significant relationship between PSMAI and the first 30-day mortality rate (p:0.096); however, the association between PSMAI and both the 90-day mortality rate (p:0.023) and the total mortality rate (p:0.046) were significant. In our opinion, assessing gastric cancer patients for sarcopenia and supporting them with the necessary nutrition and exercise program prior to surgery can help predict and lower postoperative morbidity and mortality rates.
Patient satisfaction and surgical outcomes after upper eyelid blepharoplasty in Turkish population
Authors: Ucgul Rukiye , Ucgul Ahmet
Published: July 2022

This retrospective study was conducted to review the patient satisfaction and surgical outcomes in Turkish patients with dermatochalasis who underwent upper eyelid blepharoplasty alone or in combination with orbital fat pads removal or browpexy, by comparing them with the outcomes of the previous landmark studies on upper eyelid blepharoplasty. One hundred and sixteen eyes of 58 patients were included in this study. The mean age and the mean follow-up time were 60.1±10.4 (38-77) years and 2.4±1.8(1-6) months, respectively. Of 58 patients, 27 had blepharoplasty alone, 18 had blepharoplasty with orbital fat pads removal, and the remaining 13 had combined blepharoplasty and browpexy surgery. The female ratio (88.9%) was significantly higher in the upper eyelid blepharoplasty with orbital fat pad removal group compared to the other groups (p=.024). From baseline to final visit, margin-reflex distance increased from 2.1±0.8 mm to 3.7±0.8 mm, and blepharoplasty outcomes evaluation (BOE) score from 28.9±6.2 to 76.8±14.1 (both p<.001). Change in BOE score between pre- and post-surgery was significantly higher in patients undergoing combined blepharoplasty and browpexy surgery compared to the other groups. The mean final pretarsal skin height and brow-lid crease distance were 6.8±1.2 mm and 11.1±1.3 mm, respectively. In conclusion, upper eyelid blepharoplasty had favorable anatomical outcomes when performed as single procedure or in combination with other procedures. However, patients became more satisfied after combined blepharoplasty and browpexy compared to the other surgical procedures.
Lockdown effect on emergency surgical consults during the covid-19 outbreak: Experience of a pandemic hospital
Authors: Ciftci Ahmet , Ocak Sonmez , Polat Suleyman
Published: July 2022

The covid-19 pandemic has significantly impacted many lives and health care systems around the world. Many countries have imposed lockdowns and extraordinary restriction measures including curfews to control the disease. This study aimed to evaluate the lockdown effect on surgical emergencies during this outbreak. Patients admitted to the emergency department (ED) and referred to general surgery (GS) was retrospectively analyzed during the first lockdown period (April 1-May 31,2020) and before the covid-19 pandemic, corresponding time last year (April 1-May 31,2019). Patient admission rates to ED and general surgery outpatient clinics, patient characteristics, reasons for consultation, hospitalization rates, surgical intervention requirements, and reasons for urgent surgery were compared. A significant reduction was observed in the number of patients admitted to ED, and general surgery consultation is required in the covid-19 lockdown period (72% and 32% decrease respectively). There was no difference in hospitalization and surgical intervention rates between the groups (p=0.158 and p=0.871 respectively). The number of patients referred to general surgery with a diagnosis of perianal disorders was significantly higher in the lockdown group. Covid-19 lockdown and restrictions have dramatically decreased general surgery patients' admissions to emergencies. This situation suggests that some patients with serious diseases may not apply to the emergency departments and so may delay their treatments. Establishing pandemic hospitals and directing uninfected patients to centers other than pandemic hospitals can reduce these delays. We hope, this study findings will be guiding health authorities in making rearrangements in hospitals during subsequent waves and lockdowns in this pandemic and other new pandemic in the future.
Analysis of the Impact of Big Data Era on Accounting
Authors: Liu Jingjing
Published: July 2022

In recent years, modern technology has developed faster and faster, and the era of "big data" has emerged under this trend. it's a very significant test for accounting to accept big data. When we have been seeing this phenomenon, I got the conclusion that is the efficiency of accounting work will soon be improved with it. The paper will analysis the evaluation model of development, which is based on Shanghai. Then pay attention to the graduate employment rate of Shanghai Lixin Financial and Accounting Institute. There is no denying that the data of Shanghai Bureau of Statistics is a great supporting material for researching, constructs the model with simple econometric methods, and studies big data. The possible impact of the times on accounting, thus derived thinking about related problems, and discussed the corresponding solutions.
Two Images of the Artist in Maugham’s The Moon and Sixpence
Authors: Feng Weiwen , Zhong Jingdong
Published: July 2022

Roughly based on the life of the French painter Paul Gauguin, William S. Maugham’s The Moon and Sixpence (1919) succeeded in creating an image of the artist — Once a British London stock trader, Strickland suddenly becomes obsessed with art. He abandons his wife and children, forsakes a life of prosperity and happiness, and runs to Paris and then Tahiti to pursuit the artistic dream. In spite of the entanglement of poverty and the torment of illness, this painter has injected all the values of his life onto the canvas. He creates his masterpieces at the cost of the happiness of others, including that of another painter named Stroeve, who lacks of the talent for painting despite that his paintings sell well and he is able to support a relatively well-off family. Two images of the artist fully denote the contradictions between the genius and the mediocre persons, artistic ideals and the materialistic reality. Besides, they reveal Maugham’s own artistic temperament as well.
Iconography Analysis--Symbolism in Joan Miró i Ferrà's Surreal Works
Authors: Ma Xueyang
Published: July 2022

Joan Miró (20 April1839 --25 December 1983), was a Spanish painter, sculptor, ceramicist, printmaker and representative figure of surrealism, is one of the surrealist painting masters in the 20th century who are as famous as Picasso and Dali. In 1924,  Miró deeply felt the ideological influence of surrealism in Paris, and he always insisted on the creation of surrealism in his artistic creation career in his later life. In style, Joan Miróis different from Picasso in the same period and Dali in naturalism. Joan Miró said: 'I make no distinction between poetry and painting.'. In his works, it clearly reflects the combination of these two, and ensures the purity, childishness and symbolism of art. This paper starts from the reality, analyzes the poetic grace of the picture caused by the repetition of symbols in Miró's paintings, and focuses on the embodiment of childlike and symbolism in the paintings.
Study on the Thinking Paradigm of Laozi from the Perspective of Chinese Philosophy
Authors: Wu Xian
Published: July 2022

In Lao Zi's thought, "Tao" is the most important concept of ideological and philosophical theory. In the past, the theoretical research on "Tao" in the academic circle has a completely opposite tendency to materialism and idealism. Like Western philosophy, traditional Chinese philosophy has put forward a mode of thinking characterized by intuitive comprehension, coordination and harmony, which embodies the characteristics of functional and generative thinking. It is of great ideological and practical significance for the innovative inheritance and creative promotion of Chinese traditional thought to interpret "Tao" with the Chinese thought paradigm and understand the spirit and limit of Laozi's thought.
The Variation of Rural Humanity Communication
Authors: Qin Jiahui , Peng Fasheng
Published: July 2022

With the social change and economic development, the traditional rural social structure has been unable to adapt to the present rural social environment and the disintegration, as the basis of the villagers daily communication, the rural human relations also quietly changed. Based on the investigation of S village in Guangxi, this paper analyzes the local presentation and formation mechanism of the rural human relationship variation, in order to guide the rural out of the dilemma of the human relationship variation.
Analysis on the Translation of Conceptual Metaphors in the Report on the Work of the Government of 2021
Authors: Sun Xinxin
Published: July 2022

In recent years, Chinese scholars have made many researches in-depth on conceptual metaphor and translation. Nowadays, people pay more and more attention to political life, and political texts have more important significance for people. So according to Lakoff's conceptual metaphor theory as the foundation, analyze the report on the work of the government which released in March 2021 for conceptual metaphor translation, to discuss the annual government work report in conceptual metaphor types and frequency, It also discusses the translation characteristics of relevant conceptual metaphors in English.
Research on Fund Management of Small and Medium-sized Enterprises based on Financial Sharing Mode
Authors: Chen Siyu , Sun Chenchen , Guo Wei , Cheng Pinpin
Published: July 2022

With the transnational and collectivized development of enterprises, the traditional decentralized fund management model faces huge risk of fund management and control, while the financial sharing center model can continuously improve the overall accounting level and fund management and control ability of group enterprises through standardized, standardized and professional high-quality and efficient services of the sharing center, and effectively prevent the risk of fund management and control. As the foundation of the sustainable operation of an enterprise group, the implementation of financial sharing inevitably brings many challenges to the centralized management of enterprise groups. Therefore, it is of great practical significance to explore the financial management and control under the mode of financial sharing center. On the basis of analyzing the importance of capital management and control under the mode of financial sharing center, this paper probes into the characteristics and difficulties of capital management and control of group enterprises under the mode of financial sharing center, and puts forward some countermeasures to strengthen capital management and control under the mode of financial sharing center.
Research on the Optimization of JD's Self-built Logistics
Authors: Luo Peng , Zhang Meili
Published: July 2022

JD's Self-built logistics model has made great achievements but also faces new challenges. This paper constructs a SWOT matrix to analyze the advantages, disadvantages, opportunities, and threats of JD's Self-built logistics. Identify the primary problems of Self-built logistics by constructing an IFE internal factor analysis matrix and an external factor EFE matrix. Finally, feasible suggestions are given from four aspects: improvement of satisfaction, personnel training, logistics facility construction, and information center construction.
The Idea of Optimizing the Teaching Quality Assurance System of Law Undergraduate in Colleges and Universities
Authors: Shao Daoping
Published: July 2022

At present, the main problems existing in the undergraduate teaching quality assurance system in colleges and universities are as follows: the quality standards are not refined enough, the quality evaluation focuses on results rather than processes, the effectiveness of quality information feedback is insufficient, and the quality improvement is not implemented in place. Therefore, it is necessary to refine the teaching quality standards, expand the breadth and depth of teaching quality monitoring and evaluation, optimize and improve the information feedback mechanism of teaching quality, and build a Long-term mechanism for teaching quality improvement.
Network Pharmacology and Molecular Docking Analysis on Mechanisms of Isobavachalcone in Parkinson’s Disease
Authors: Xie Feiling
Published: July 2022

Objective: To use bioinformatics methods to identify the target genes of isobavachalcone (ISO) in Parkinson’s disease (PD), and to construct pharmacology network to characterize the underlying mechanism of ISO in PD.  Methods: Potential targets of ISO, as well as related genes of PD were obtained from the public databases, the potential targets and signaling pathways were determined by protein-protein interaction (PPI), gene ontology (GO) and KEGG pathway enrichment analyses. And the network among ISO, PD and their co-targets was constructed using Cytoscape 3.3.0. AutoDock Tools and PyMOL software were applied for molecular docking. Results: 34 potential targets of ISO related to PD were predicted using the public databases. PPI network showed that AKT1, PTGS2, EGFR, HSP90AA1, APP, SNCA, ACHE, BACE1, AKR1B1, MAOB, ABCB1 and PTGES were considered to as hub genes. Through enrichment analysis, ISO was found to exert its potential therapeutic effects on PD through several pathways. Molecular docking showed that ISO might bind to the key PD-associated amyloid protein, α-synuclein. Conclusion: Altogether, this study preliminarily investigated the pharmacological effects of ISO on PD and its potential underlying therapeutic mechanisms mediated by multiple targets and pathways.
Research on the Narrative Function of Musical Symbols in Youth Movies
Authors: Yan Yulin
Published: July 2022

Film is an art form that combines sound and picture, and music, as a symbolic expression, plays an increasingly important role in films. In genre films, musical notation often has its own aesthetic value and ideographic function. As an important film genre, youth-themed films have formed a set of proprietary "systems" in the process of continuous development. Its function is not only to cooperate with the picture, but also to express the meaning and textual value of the music independently in the narrative process. Through the analysis of musical symbols in youth-themed movies, this paper attempts to clarify the ideographic mechanism of music in youth movie texts, interpret the main role of musical symbols as an interpretive link in the narrative process of movies, and make Chinese genre film music more vital.
Research on Lane Line Detection Algorithm based on Improved Hough Transform
Authors: Shao Shuai
Published: July 2022

In order to solve the problems existing in the traditional lane line detection algorithm, such as weak robustness and low accuracy, an improved Hough transform lane line detection algorithm is proposed. Firstly, the method preprocesses the road image, including gray transformation, histogram equalization, Gaussian filtering, image binarization and so on. Then the canny edge detection operator is used to detect the edge of the image to be processed, and an improved Hough transform algorithm is proposed. Simulation results show that the algorithm has stronger robustness and higher accuracy than the traditional algorithm.
Algorithm Improvements based on the Attention Mechanism of yolo-v5
Authors: Wu Xuemei , Li Wenhua
Published: July 2022

In order to further improve the accuracy of mouse species recognition, a yolo-v5 algorithm based on attention mechanism is proposed. The algorithm consists of two parts, one is the yolo-v5 backbone network, and the second part is to add attention mechanisms to the backbone network. It is used to extract global features, and then uses the attention mechanism to give different weights to the extracted features, and finally achieves the purpose of obtaining the features we need. Finally, the softmax classifier is used for classification. Experiments were validated on a homemade mouse dataset. Classification accuracy of 85% and above, respectively. Compared with other algorithms, this algorithm has a good recognition effect and robustness. Rat categories can be identified more accurately.
An Improved YOLOv5s Method for Light Guide Plate Defect Detection
Authors: Zhang Huanyu
Published: July 2022

Aiming at the problems of over 100 million pixels in a single image of a large-size light guide plate, only a dozen pixels in the defect size, uneven brightness, and slow detection speed, this paper designs an improved YOLOv5s method for light guide plate defect detection. YOLOv5s is used as the basic model, and the attention mechanism CBAM is added to the backbone feature extraction network (backbone) part; PAN-Net is replaced with Bi-FPN structure in the feature fusion network (Neck) part, and a small target detection layer is added at the same time; YOLOv5s Obtain higher accuracy and improve algorithm robustness. Finally, a comparative analysis is performed based on the self-built dataset LGPDD. The experimental results show that compared with the original YOLOv5s model, the average accuracy mAP is increased by 1.4%; the model detection speed can meet the production requirements, and has a good application prospect in industrial deployment.
Mode on Power Distribution of a Dynamic Dual Pickup Wireless Charging System for Electric Vehicles
Authors: Cao Guanghua , Wang Xingke , Yan Limei , Jia Yin
Published: July 2022

Power distribution is critical for the dynamic dual receiver coil wireless charging system of electric vehicles. The power distribution method of the existing wireless power transmission technology mainly distributes the power to the load according to the requirements of different resonant frequencies. However, the existing methods have the problems of low accuracy and low power consumption, so it is difficult to implement in practice. This paper presents a new power distribution method, which can dynamically and accurately distribute power to loads. This method can improve the control speed of the receiving circuit without additional circuit on the receiving side, and realize constant power output and efficiency optimization at the same time when there is no communication connection with the transmitter. Therefore, it is easy to realize in the wireless charging system of electric vehicle with dual receiver coil. The experimental results show that the load-side output power of the dynamic radio energy transmission system can be kept constant when moving, and the maximum efficiency of the output system reaches 91.38%. The experimental results prove the effectiveness of the proposed control method.
Structural Optimization Design of Rotary Loose Coupler
Authors: Wang Jinyu , Wang Chenyu , Miao Feixiang
Published: July 2022

The loose coupling transformer, the core component of the rotary wireless excitation system, has a large leakage inductance due to the existence of a large gap, and the coupling coefficient cannot be effectively improved, thus limiting the improvement of the system efficiency. In order to solve this problem, firstly, the equivalent modeling and leakage inductance analysis of the rotary loosely coupled transformer are carried out, and the improved design is carried out according to the defects of common windings, and an improved shaft rotary coupler is proposed. The feasibility of this optimized structure was determined using Ansys/Maxwell simulation analysis software. The S-S resonance compensation scheme is designed, and the co-simulation with Simplorer and Maxwell is used to compare the coupling coefficient and transmission efficiency of the loosely coupled transformer before and after the improvement under the condition of large air gap, and the rationality of the proposed scheme is verified.
Research Progress on the Adsorption Effect of Cellulose-based Modified Materials on Heavy Metals
Authors: Zhang Lulu , Guo Chao
Published: July 2022

Heavy metal pollution, as an increasingly concerned environmental issue, has attracted social attention for its causes and effects. At present, heavy metals enter soil/water bodies mainly through man-made factors such as mining, metal smelting, application of pesticides and fertilizers, and natural factors such as geological erosion and weathering. Heavy metals have the characteristics of high toxicity, non-degradation, and easy bioaccumulation, which seriously threaten the survival and safety of human beings. At present, people's research on the treatment of heavy metal ions is more in-depth, and many green and efficient absorption materials have been developed, and cellulose-based biomass adsorption materials are one of them. Cellulose is one of the most abundant renewable materials in nature, and has certain adsorption properties. However, cellulose adsorption materials have a single functional group, which can be modified to enhance the adsorption performance of heavy metal ions.
Properties on Bearing Fault Diagnosis of Water Injection Motor
Authors: Jiang Jianguo , Zhang Zepeng
Published: July 2022

Water injection motor in western Daqing Oilfield is the key equipment of water injection to the oil field. Due to the great pressure of water injection to the oil field, the water injection motor is often overloaded and runs at high speed, so that the rolling bearing of the motor is worn, deformed and other faults. In order to detect the small faults that are not easy to detect in the early stage of the motor bearing, this paper proposes a method combining variational mode decomposition (VMD) and fast spectral kurtosis. The optimal number of modes is determined by correlation and energy ratio. The fast spectral kurtosis operation is carried out on the modes with large kurtosis. The fault signal is enveloped and decomposed by the optimal filter parameters. The experimental results show that the algorithm can successfully identify the rolling bearing fault of water injection motor and determine the fault location.
Defogging Target Detection based on YOLOv4 and Deblurganv2
Authors: Liu Shugang , Zhang Linkun
Published: July 2022

Aiming at the problem of low detection accuracy of existing object detection in fog and haze weather, a defogging object detection method based on DeblurGANv2 and YOLOv4 is proposed. In this method, the image enhancement algorithm in the generation countermeasure network DeblurGanv2 is added to the preprocessing module of YOLOv4 to preprocess the foggy image and retain the high-quality texture and color information of the image, At the same time, the lightweight neural network ShuffleNet V2 is used to replace the CSPDarkNet53 network used for backbone feature extraction in YOLOv4 to improve the speed of model mark detection. The experimental results show that the proposed method can reduce the problems of large color difference and fog residue, and the map value in the rest data set reaches 86.56%, It has achieved good results in the actual defogging target test.
Non-fragile Fuzzy Control for Fractional-order Unified Chaotic Systems
Authors: Yan Xiaofei
Published: July 2022

The fuzzy control of fractal-order chaotic systems are studied. Firstly, according to the T-S fuzzy modeling theory, the fractional order unified chaotic system is reconstructed by T-S fuzzy modeling. Secondly, the steady-state performance of Fractional-order unified chaotic systems is discussed by using Lyapunov stability theory. Then, a Fractional-order Non-fragile fuzzy controller is designed according to the linear matrix inequality (LMI) method. Finally, a simulation example is given to verify the effectiveness of the controller.
Feature Extraction Method of Epileptic EEG Signal based on Wavelet Packet and Improved Fuzzy Entropy
Authors: Zhang Dehua , Wang Tong
Published: July 2022

Epileptic eeg signal has obvious characteristic information, which can be used as an important basis to judge whether epileptic seizure occurs. Because of the low recognition rate of single feature extraction method, a method of eeg feature extraction based on wavelet packet transform and improved fuzzy entropy was proposed. In view of the characteristics of eeg signal with large noise and weak signal, the Wavelet packet Transform (WPT) is used to decompose the EEG signal with multi-resolution and make it into the signal with different characteristics. The original Fuzzy entropy (Fuzzy EN) algorithm was improved to improve its ability of reflecting the degree of irregularity and complexity of time series. Finally, the feature extraction of epileptic EEG signal was completed by combining the wavelet packet transform method.
Research on Transformation Methods of Scientific and Technological Achievements from the Perspective of Innovation Ecology
Authors: Phommmaly Meksavang , Gao Jie , Shu Yue
Published: July 2022

The transformation of scientific and technological achievements has ushered in new opportunities and shown new characteristics. On the basis of analyzing the characteristics of innovation ecosystem, this paper puts forward the main mechanism of innovation ecosystem enabling the transformation of scientific and technological achievements, constructs the innovation ecological model of the transformation of scientific and technological achievements, defines the innovation subject and innovation environment of the transformation of scientific and technological achievements, and puts forward three core mechanisms of innovation ecosystem supporting the transformation of scientific and technological achievements. By constructing the colleges and universities, enterprises, science and technology intermediary, new research and development institutions, and other areas of innovation alliance, combined with the industry needs in the field of strategy will contend for layout construction of a batch of new research and development institutions, creating innovative synthesis as the core of innovation and improve cluster innovation environment, make the transformation of scientific and technological achievements from accidental sporadic events qualitative to batch convert "rainforest effect".
Design and Implementation of Store Management System based on IDEA
Authors: Jing Wen , Liu Shugang
Published: July 2022

This With the continuous development of computer network and information industry, the use of manual data processing has been unable to meet the current needs, and more and more businesses have to change their business model and use computers to manage manpower and materials. The store management system is designed to improve the operation rate of individual businesses, so as to facilitate the store management personnel to manage the purchase and sale of goods. In this paper, the author studies on store the overall management system adopts B/S structure, using IntelliJ IDEA as a development environment of the whole code, front-end using easyUI framework for the preparation of the JSP page, the back-end using SSM framework, using MySQL database for data persistence, through these finished goods management module technology, purchasing and supply management module, order management module, user management module development, and through the function test and analysis, system can stable operation, to achieve the desired effect. The realization of the system can improve the management efficiency of individual businesses on materials, procurement, sales and personnel, making the operation of staff more convenient and avoiding mistakes in the operation process.
Research on the Transformation Efficiency of S&T Achievements in China's Equipment Manufacturing Industry
Authors: Li Sui , Lu Jiaxin
Published: July 2022

In this paper, DEA-Malmquist model is used to calculate the transformation efficiency of S&T achievements in China's equipment manufacturing industry, and the causes of low transformation efficiency of S&T achievements are analyzed and studied. The results show that the low transformation efficiency of S&T achievements in equipment manufacturing industry from 2012 to 2018 is due to the relatively backward technical level of the industry; The key to improving the transformation efficiency of S&T achievements in equipment manufacturing industry is to improve the level of resource allocation and transformation technology.
Biaxial Fatigue Loading System for Electromagnetic Excitation of Wind Turbine Blades
Authors: He Ying , Liu Lei , Zhou Hao , Chu Xinshua
Published: July 2022

Based on the shortcomings of the current detection methods for wind power blades, an electromagnetic excitation biaxial fatigue loading system is designed. The loading method mainly adopts the principle of electromagnetic actuators. The loading part is mainly composed of electromagnet cores and coils. The blades exert electromagnetic force to achieve blade vibration. The dual-axis loading can be more in line with the actual working conditions of the blade. Electromagnetic loading mechanisms are installed in the two directions of the blade's waving and swaying respectively, and the electromagnetic force is applied in the two directions of the blade's waving and swaying at the same time. Vibration frequency, so that the vibration reaches the natural frequency of the blade. In addition, the clamping mechanism of the blade is improved, and a mechanical clamping mechanism is designed, which comprehensively uses the ball screw, timing belt, ratchet and came to realize the positioning and clamping of the blade.
Image Acquisition and Processing System based on ZYNQ
Authors: Li Jun , Hou Qiong , Zhou Yingjie
Published: July 2022

With the advancement of manufacturing processes, imaging sensors have become more and more sophisticated, the amount of image data generated is increasing, and application scenarios and functional algorithms have become more and more complex. The traditional serial processing method can no longer meet the real-time requirements of image processing. The use of hardware to accelerate image algorithms has become a basic trend in image acquisition and processing systems. Xilinx’s Zynq7000 series chip integrates a dual-core A9 series ARM processor (PS) and an A7 series FPGA (PL). The industry standard AXI interface (advanced extensible interface) is used for information between ARM and FPGA. Interactive. This paper designs an image acquisition and processing system based on Zynq, which collects images through OV5640, uses Zynq as the main control chip to analyze and process the image data, and uses RGB LCD for image display. This article develops the OV5640 video capture IP, LCD driver IP, and image edge detection IP, and calls these key IPs in the ZYNQ system to establish an image capture and processing system that integrates image data collection, transmission, storage, image display, and edge extraction. The overall effect of the system is good, and it can effectively detect the edge information of the target. At the same time, the image collection and display can reach the design target of 60 frames per second, which has strong applicability.
Investment Value Analysis of Listed Companies based on Stock Valuation Methods
Authors: Song Dawei
Published: July 2022

Because stock prices are affected by a variety of factors, their market value may deviate from its intrinsic value in the short term. From a value investment perspective, stock value remains an important reference factor in long-term investment. This article takes the listed company Golden Seed Wine as an example, and takes the company's 2018-2020 annual report data to calculate the company's relative investment value through the price-to-earnings ratio, price-to-book ratio and dividend discount model, giving investors a certain investment reference.
Estimation of Bank Stability in Yangling Section of Weihe River Basin
Authors: Zhang Panpan , Su Yuanyi , Xiong Yufei
Published: July 2022

The stability of the river bank directly affects the integrity of the physical structure of the river, which in turn affects the ecological security of the river, and it also affects the safety of the people on both sides of the river. Construction near the banks of the Yangling section of the Weihe River Basin may cause disturbances to the stability near the riverbanks, and the stability of the riverbanks is also an important indicator of river water ecological security. Therefore, in view of the riverbank stability in the Yangling section of the Weihe River Basin, the bank stability of the Yangling Section of the Weihe River Basin is evaluated, and then effective suggestions are put forward for the later construction. The results show that: (1) The riparian stability of the river reaches is considered unhealthy.(2) For construction in the river course, the river channel should be stabilized by smooth excavation along the bank slope, cutting and straightening, etc., to improve the effect of water flow conditions and reduce the scouring of the river bank. (3) Standardize the behavior of sand mining and soil borrowing in the river channel, and minimize the disturbance to the river bank.
Thinking and Practice of Online Teaching in the Context of the Normalization of the COVID-19 Epidemic
Authors: Zhang Yueyue
Published: July 2022

Today, when the new crown epidemic has become normal, college teaching must be ready for online teaching at any time, so how to ensure the quality of online teaching is a problem we must think about.In early 2020, in response to the COVID-19 outbreak, classes in the new semester were largely replaced by online teaching to ensure continued learning.Teachers are actively exploring effective online teaching methods to provide a good learning atmosphere for students at home to ensure that students have a good learning effect at home.This paper proposes an online teaching model based on active interaction, and discusses the design of teaching process and problems by taking the data structure course as an example.
Research on Disaster Prevention and Mitigation Countermeasures of Key Bridges of Sichuan-Tibet Railway Based on Characteristics
Authors: Yin Hang , Li Yuanfu
Published: July 2022

From the perspective of disaster prevention and mitigation, this paper takes the double-line special bridge in the north of the north of the Panjiang as an example, analyses the influencing factors of the disaster prevention and mitigation design of major railway bridges, tunnels, high steep slopes and key disaster work points, selects the characteristic attributes of key project cases, and establishes a model of key railway key engineering case representation based on characteristic attributes. On this basis, suggestions for disaster prevention and mitigation are given. Provide reference ideas for the optimisation of disaster prevention and mitigation design.
Research on Legal Regulations of Infrastructure Leasing and Financial Services
Authors: Lan Meiling , Ju Ye
Published: July 2022

The development of infrastructure construction project has been difficult due to limited sources of funding, and the traditional mode of investment and financing for infrastructure construction has gradually revealed many drawbacks due to such practical factors as limited local financial resources. With the expansion of the periphery of the subject matter, financial leasing has subsequently become one of the most popular forms of infrastructure investment and financing. However, compared with the United States and other developed countries where the financial leasing system originated, the legal system of financial leasing in China is not yet sound. Since real estate can be used as the subject matter of financial leasing transactions, China’s lack of legislation in the legal regulations of infrastructure leasing and financial services has inevitably led to many risks and challenges in the specific operation of the business. Based on the analysis of the legal dilemma faced by China’s infrastructure finance leasing, this paper discusses the way forward to improve infrastructure finance leasing, with a view to providing some reference for the further development of infrastructure finance leasing in China.
Research on Text Classification based on Deep Learning
Authors: He Bo , Zhu Lili , Wang Xiao , Zhang Huanli , Shi Jiaoqiu
Published: July 2022

Text classification is a fundamental task in natural language processing, and machine learning and deep learning have seen more research and great progress in this task. In this paper, we introduce the current state of research and analyse the application of deep learning networks to text classification, based on the concept of text classification, feature extraction, text representation and other related techniques and text classification methods.
Gerçek Judo Müsabaka Sonuçlarının Yapay Sinir Ağları Yöntemi Yolu ile Karşılaştırılması
Authors: DEĞER Ömer , SÜEL Emin
Published: July 2022

Bu çalışmada, Yapay sinir ağları ile Judo müsabaka sonuçlarının tahmin edilmesi amaçlanmaktadır. Bu amaç doğrultusunda yapay sinir ağında katman sayıları, nöron sayıları ve optimizasyon yöntemleri (SGD, RMSprop, Adam, Adadelta, Adagrad, Adamax, Nadam) hiperparametleri ile 21 farklı model oluşturulmuştur. Çalışmanın örneklemini 2017:01-2021:03 tarihleri arasında uluslararası büyükler judo müsabakalarında yarışan 7758 sporcu oluşturmaktadır. Bu dönemde yapılan 53775 judo müsabakasından elde edilen verilerden her sporcuya ait 14 farklı öznitelik hesaplanmıştır. Müsabık iki sporcuya ait öznitelikler sinir ağının giriş katmanına gönderilerek 28 adet girdi verisi 1 adet çıktı verisi oluşturulmuştur. Uygulama, tek gizli katmanında 64 nöron, iki gizli katmanında sırasıyla 32-64 nöron ve üç gizli katmanında sırasıyla 64-128-64 nöron bulunan sinir ağında yedi ayrı optimizasyon yöntemi ile sırasıyla eğitilmiştir. Uygulama sonucunda en başarılı modelin (%78.6 doğruluk, %44.4 hata) tek katmanında 64 nöron, RMSprop optimizasyon yöntemi kullandığı belirlenmiştir. Başarı oranı en düşük modelin (%74.1 doğruluk, %51.8 hata) iki gizli katmanında 32-64 nöron, Adadelta optimizasyon yöntemi kullandığı belirlenmiştir. Optimizasyon yöntemlerinden RMSprop ve Adamax’ın diğer yöntemlere kıyasla daha başarılı olduğu, Adadelta yönteminin ise daha başarısız olduğu belirlenmiştir.
Sonuç olarak uygun veri seti ve hiperparametreler kullanılarak Judo müsabaka sonuçlarının yapay sinir ağları ile tahmin edilebileceği ortaya konulmuştur
Implementation of OSH Risk Management among SMEs in Malaysia: A Systematic Literature Review
Authors: Marzuki Marziana Madah , Majid Wan Zurina Nik Abdul , Bakar Hatinah Abu , Rosman Mohamad Rahimi Mohamad , Wahid Khalid Abdul , Zawawi Mohd Zafian Mohd
Published: July 2022

This study investigated the implementation of the occupational safety and health (OSH) risk management system, known as the Hazard Identification, Risk Assessment and Risk Control (HIRARC), in small-medium enterprises (SMEs) in Malaysia. Specifically, the implementation of the HIRARC system’s challenges and weaknesses faced by SMEs were investigated based on a systematic literature review of two databases, namely SCOPUS and Google Scholar. The results show that there was scant work on the HIRARC system implementation and limited specific industries, such as construction and production. Additionally, the challenges faced by SMEs were categorised into the HIRARC system’s weaknesses and the organisation’s inadequacy in implementing the system. This study provided implications to the OSH regulators in continuously promoting the HIRARC system’s significance while improving the system and encourage its assimilation among SMEs in Malaysia. This study is also hoped to provide some guidance to the SMEs in Malaysia in implementing OSH risk management system.
Fear in the COVID-19 Pandemic and its Correlates: A Comparison between Students with Sensory Disabilities and without in Beijing
Authors: Zhang Jie , Yu You , Li Ning , Liu Jiajing , Ye Yilin
Published: July 2022

The fear among college students of different sensory status during the COVID-19 pandemic in Beijing was assessed with its correlates. The total sample of 686 cases was composed of students without sensory disabilities, students that are hard of hearing, and with a visual impairment. The measure of fear was adopted from an instrument assessing people’s fear of flu published by WHO. The correlate variables beyond the demographics were all previously validated and documented tools. The students without sensory disabilities are more fearful than the students with sensory impairment. Females are more fearful than males. Social support reduces fear. Life satisfaction is negatively related to fear. While stress and anxiety increase fear, depression is negatively correlated with fear. Findings indicate that students with sensory disabilities are not the most fearful in a pandemic disaster like the current COVID-19, which may increase their risk of infection.
OUTCOME OF LAPAROSCOPIC PERCUTANEOUS EXTRA PERITONEAL CLOSURE VERSUS OPEN REPAIR FOR PAEDIATRIC INGUINAL HERNIA. A RANDOMIZED CONTROL TRIAL
Authors: Ahmed Armaghan , Hashim Imran , Mehmood Farrakh , Haider Naveed , Chattha Aziz Ahmad , Ayub Ayesha
Published: July 2022

Background:  Laparoscopic inguinal hernia repair (LIHR) has many benefits like less frequency of metachronous contralateral hernias, minimum complications, comparatively less duration of operation and better cosmetic outcome as compared to the open technique. Objective of the study was to compare the outcome of laparoscopic percutaneous extra-peritoneal closure (LPEC) and open repair for paediatric inguinal hernia in terms of contralateral metachronous hernia, operative time and recurrence. Methods: A randomized controlled trial was conducted at the Department of Paediatric Surgery, Children Hospital Lahore.  Non-probability purposive sampling was used, and 296 cases were divided into group-1(managed with conventional open repair) and group-2 (managed with laparoscopic Percutaneous Extra-peritoneal closure). After taking informed consent, data was collected, and cases were studied for operative time, contralateral metachronous hernia and recurrence till 6 months postoperatively. Data analysis was done through SPSS 22.0. Chi-square and independent sample t-test was used for comparison. p-value ≤0.05 was taken as significant. Results: The mean operative time was statistically less in the LPEC group (24.79±3.44 minutes) when compared to the open repair group (28.71±4.54 minutes), p-value <0.001. In the Open repair group, there were 19 (12.8%) cases that had contralateral metachronous hernia, while in the LEPC group, 2 (1.4%) cases had contralateral metachronous hernia p-value <0.001.  In the Open repair group, 4(2.7%) cases had a recurrence, while in LPEC group 1 (0.7%) cases had a recurrence, with statistically same recurrence rate, p-value >0.05. Conclusion: The LPEC technique is better than conventional open repair in terms of CMIH, operative time, and recurrence rate.
FREQUENCY AND FACTORS LEADING TO HELICOBACTER PYLORI INFECTION AMONG DYSPEPTIC PATIENTS. A SINGLE CENTRE STUDY
Authors: Ali Saira Muhammad , Farrukh Syed Zea Ul Islam , Haqqi Syed Afzal Ul Haq , Siddiqui Arif Rasheed , Sadiq Muneer , Niaz Saad Khalid
Published: July 2022

Background: Helicobacter pylori is infecting 50 percent or more of the world's population, putting it the most ubiquitous infection on the world. This study is done with the objective to determine the frequency and risk factors of Helicobacter pylori infection among dyspepsia patients at Patel Hospital Karachi. Methods: This cross-sectional study was conducted at the gastroenterology department at the Patel Hospital in Karachi from 10th Jan to 10th July 2021. All patients with dyspepsia for at least 6 months having age 20-60 years of either gender were included. Three samples from stomach (2 from antrum,1 from corpus) for biopsies were collected from each patient. The specimen was sent to the microbiology department of the hospital and was reported as having histopathological confirmation of Helicobacter pylori infection. Results: Of 111 patients with dyspepsia, mean age of the patients was 44.19±16.41 years. Most of the patients (n=65, 58.6%) were males and 46 (41.4%) were females. The mean duration of dyspepsia was 11.48±5.53 months. Helicobacter pylori was discovered to be present in 93 percent of individuals (83.8 percent). The odds of Helicobacter pylori infection were found to be 7.99 times higher among patients over 40 years old (AOR: 7.99, 95 percent CI: 2.02-31.64, p: 0.003), 3.93 times higher among patients with >9 months of dyspepsia (AOR: 3.93, 95 percent CI: 1.09-14.16, p: 0.036), and 11.85 times higher among smokers as compared to non-smokers (AOR: 11.85, 95 percent CI: 1.42-99.08, p-value 0.023). Conclusion: The rate of Helicobacter pylori infection in patients with dyspepsia was found to be higher. Furthermore, increasing age, increase duration of dyspepsia and smoking is found to be independent risk factors.
POSTPARTUM INSERTION OF INTRAUTERINE CONTRACEPTIVE DEVICE: A SAFE AND EFFECTIVE CONTRACEPTION
Authors: Fatima Saher , Rehman Anjum , Ahmed Zeeshan , Sajid Muhammad Maaz , Habiba Umme , Rehman Ambreen
Published: July 2022

Background: The incidence of maternal mortality and morbidity related to the termination of unwanted pregnancy in Pakistan is rising at an alarming rate. Instant Postpartum insertion of intra- uterine contraceptive device (PPIUCD) is an effective contraceptive measure to reduce unexpected pregnancy and its associated complications in developing countries like Pakistan. Methods: The current study was conducted in a public sector hospital in Karachi with a total of 7314 pregnant women counselled for insertion of PPIUCD antenatally. Out of which 5682 women agreed to the insertion and 1632 refused the procedure, mostly due to unfamiliarity with PPIUCD insertion. PPIUCD was inserted within 48 hours of delivery in 1441 patients and they were followed for 6 months onwards. Results: Total postpartum insertions were 1441 which was found to be an effective measure with the continuation rate of 91% among 785 followed up cases. Postpartum IUCD insertion was found as an effective, satisfactory and convenient practice for the women of developing countries like Pakistan, to get an on-time appropriate contraceptive measure. Conclusion: PPIUCD was found to have high retention and low expulsion rate and its efficacy can be improved further by proper training and skills of healthcare professionals. In this regard, appropriate strategies should be formulated and implemented at the statutory level by increasing social awareness and practice of using PPIUCD by health care providers to reduce undesired pregnancies.