Lactobacillus casei Zhang Prevents Jejunal Epithelial Damage to Early-Weaned Piglets Induced by Escherichia coli K88 via Regulation of Intestinal Mucosal Integrity, Tight Junction Proteins and Immune Factor Expression

( Yuying Wang ),( Xue Yan ),( Weiwei Zhang ),( Yuanyuan Liu ),( Deping Han ),( Kedao Teng ),( Yunfei Ma ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.6

Farm animals such as piglets are often affected by environmental stress, which can disturb the gut ecosystem. Antibiotics were commonly used to prevent diarrhea in weaned piglets, but this was banned by the European Union due to the development of antibiotic resistance. However, the use of probiotics instead of antibiotics may reduce the risk posed by pathogenic microorganisms and reduce the incidence of gastrointestinal diseases. Therefore, this study was conducted to investigate the effects of Lactobacillus casei Zhang on the mechanical barrier and immune function of early-weaned piglets infected using Escherichia coli K88 based on histomorphology and immunology. Fourteen-day-old weaned piglets were divided into a control group and experimental groups that were fed L. casei Zhang and infected with E. coli K88 with or without prefeeding and/or postfeeding of L. casei Zhang. The L. casei Zhang dose used was 107 CFU/g diet. Jejunum segments were obtained before histological, immunohistochemical, and western blot analyses were performed. In addition, the relative mRNA expression of toll receptors and cytokines was measured. Piglets fed L. casei Zhang showed significantly increased jejunum villus height, villus height-crypt depth ratio, muscle thickness, and expression of proliferating cell nuclear antigen and tight junction proteins ZO-1 and occludin. The use of L. casei Zhang effectively reduced intestinal inflammation after infection. We found that L. casei Zhang feeding prevented the jejunum damage induced by E. coli K88, suggesting that it may be a potential alternative to antibiotics for preventing diarrhea in early-weaned piglets.

Unidirectional Wettability Performances of Weft-knitted Fabric Based on Yarn Structure

Yuying Liu,Yong Kang,Min Luo,Pibo Ma 한국섬유공학회 2022 Fibers and polymers Vol.23 No.3

The performance of unidirectional moisture conductivity is affected by the structure of the selected yarn. A weftknittedfabric with unidirectional moisture conductivity was produced on Mach2X 153 computerized flat knitting machineusing water blocking yarn and polypropylene fiber with special structure as raw materials. The moisture conductivity of theselected yarn, the unidirectional moisture conductivity and air permeability of the fabric were tested. The results show thatthe inner polypropylene yarn is hydrophobic and has obvious moisture diffusion effect, while the outer polypropylene yarn ishydrophilic and has obvious moisture control effect. The results also can provide a new inspiration for us to control moistureabsorption by using different yarn structures and properties when producing unidirectional moisture conducting fabrics.

Insulin Resistance Is an Important Risk Factor for Cognitive Impairment in Elderly Patients with Primary Hypertension

Lina Ma,Yun Li,Ming Feng,Yuying Qian,Wei Yang,Jia Liu,Rui Han,Hong Zhu 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.1

Purpose: Insulin resistance plays a role in the development of dementia and hypertension. We investigated a possible relationship between cognitive impairment and insulin resistance in elderly Chinese patients with primary hypertension. Materialsand Methods: One hundred and thirty-two hypertensive elderly patients (>60 years) were enrolled in this study, and assigned into either the cognitive impairmentgroup (n=61) or the normal cognitive group (n=71). Gender, age, education,body mass index (BMI), waist hip ratio (WHR), total cholesterol (TC), triglyceride(TG), C-reactive protein (CRP), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), creatinine (Cr), fasting plasma glucose (FPG), fasting insulin (FINS), homeostasis model of assessment for insulin resistance index (HOMA-IR), systolic blood pressure, diastolic blood pressure, smoking history, atherosclerosis and the proportion of uncontrolled hypertensionwere compared between the two groups. Multi-factorial logistic regressionanalysis was performed. Results: No significant differences were found in gender, age, TC, CRP, HDL-C, LDL-C, Cr, BP, smoking history, atherosclerosis and the proportion of uncontrolled hypertension between the two groups. The cognitiveimpairment group had lower education levels, and higher BMI, WHR, TG, FPG, FINS, and HOMA-IR levels than the control group. Logistic regression analysis revealed the levels of education, BMI, WHR, and HOMA-IR as independentfactors that predict cognitive impairment in patients. Conclusion: Our study demonstrates that poor education and increased BMI, WHR, and HOMA-IR are independent risk factors for cognitive impairment in elderly patients with hypertension. Insulin resistance plays an important role in the development of cognitive impairment in primary elderly hypertensive patients.

A Novel Approach of Feature Extraction for Analog Circuit Fault Diagnosis Based on WPD-LLE-CSA

Wang, Yuehai,Ma, Yuying,Cui, Shiming,Yan, Yongzheng The Korean Institute of Electrical Engineers 2018 Journal of Electrical Engineering & Technology Vol.13 No.6

The rapid development of large-scale integrated circuits has brought great challenges to the circuit testing and diagnosis, and due to the lack of exact fault models, inaccurate analog components tolerance, and some nonlinear factors, the analog circuit fault diagnosis is still regarded as an extremely difficult problem. To cope with the problem that it's difficult to extract fault features effectively from masses of original data of the nonlinear continuous analog circuit output signal, a novel approach of feature extraction and dimension reduction for analog circuit fault diagnosis based on wavelet packet decomposition, local linear embedding algorithm, and clone selection algorithm (WPD-LLE-CSA) is proposed. The proposed method can identify faulty components in complicated analog circuits with a high accuracy above 99%. Compared with the existing feature extraction methods, the proposed method can significantly reduce the quantity of features with less time spent under the premise of maintaining a high level of diagnosing rate, and also the ratio of dimensionality reduction was discussed. Several groups of experiments are conducted to demonstrate the efficiency of the proposed method.

A Novel Approach of Feature Extraction for Analog Circuit Fault Diagnosis Based on WPD-LLE-CSA

Yuehai Wang,Yuying Ma,Shiming Cui,Yongzheng Yan 대한전기학회 2018 Journal of Electrical Engineering & Technology Vol.13 No.6

The rapid development of large-scale integrated circuits has brought great challenges to the circuit testing and diagnosis, and due to the lack of exact fault models, inaccurate analog components tolerance, and some nonlinear factors, the analog circuit fault diagnosis is still regarded as an extremely difficult problem. To cope with the problem that it’s difficult to extract fault features effectively from masses of original data of the nonlinear continuous analog circuit output signal, a novel approach of feature extraction and dimension reduction for analog circuit fault diagnosis based on wavelet packet decomposition, local linear embedding algorithm, and clone selection algorithm (WPD-LLE-CSA) is proposed. The proposed method can identify faulty components in complicated analog circuits with a high accuracy above 99%. Compared with the existing feature extraction methods, the proposed method can significantly reduce the quantity of features with less time spent under the premise of maintaining a high level of diagnosing rate, and also the ratio of dimensionality reduction was discussed. Several groups of experiments are conducted to demonstrate the efficiency of the proposed method.

Host performance of Trichogramma species on Opisina arenosella, and evaluation of their biological control efficacy

Tao Jin,Yuying Lin,Shichou Han,Guangchang Ma,Haibo Wen,Zhengqiang Peng 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3

Five candidate species for biocontrol of Opisina arenosella Walker, a destructive pest of palm trees, were evaluated. To compare host performance, 5 Trichogramma species were allowed to parasitize O. arenosella eggs of different ages and egg densities. The parasitization capacity of two species, T. embryophagum and T. japonicum, were evaluated with respect to adult age. Treatments consisted of field with releases of T. embryophagum or T. japonicum set up in Danzhou, Hainan, and the pest densities was recorded periodically. The results showed that T. embryophagum, T. chilonis, and T. dendrolimi had a strong parasitic ability on 0-day-old O. arenosella eggs. In species comparisons, the parasitism rates of T. embryophagum on 1-day-old and 4-day-old eggs, and T. japonicum on 2-day-old, 3-day-old, and 5-day-old eggs of O. arenosella were significantly higher than those of other Trichogramma species. At densities of 40 and 35 eggs/tube (84.8 cm 3 ), the numbers of eggs parasitized by T. embryophagum and T. japonicum were the highest, at 29.9 and 24.6, respectively. During the first 24-h, the numbers of eggs parasitized by T. embryophagum and T. japonicum were 110.6 and 82.2, accounting for 84.7% and 59.5%, respectively, of the total parasitized eggs. After 2 months releases, the larvae and pupa density of O. arenosella under T. embryophagum and T. japonicun treatment were 0.95 and 0.94 individuals/leaflet, respectively, were significantly lower than untreated control (1.6 individuals/leaflet). These findings encouraged that T. embryophagum and T. japonicun are able to be used for biological control for O. arenosella.

The Unidirectional Wettability Property of a New Warp-knitted Double-face Fabric

Tong Yang,Haifan Yu,Yuying Liu,Zhijia Dong,Pibo Ma 한국섬유공학회 2020 Fibers and polymers Vol.21 No.8

In order to knit a warp-knitted fabric with unidirectional wettability property, polyester multifilament and cottonyarn were used as raw materials, and samples were produced on an RD6 EL warp-knitting machine. The unidirectionalwettability property of the fabric was tested by measuring the length of artificial sweat absorbed in the fabric. And theunidirectional wettability of the fabric primarily depends on the structure and twist of the yarn, especially the twist. Themoisture absorption capacity of the yarn decreases with the yarn twist increasing. When the twist reaches a certain value, itwill prevent the entry of moisture. This provides us with an inspiration for controlling the moisture absorption of fabric by thetwist of the yarn when knitting the unidirectional wettability fabric.

A Review on Intelligent Scheduling and Optimization for Flexible Job Shop

Bin Jiang,Yajie Ma,Lijun Chen,Binda Huang,Yuying Huang,Li Guan 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.10

Flexible job shop scheduling problem is a NP-hard combinatorial optimization problem, which has significant applications in the field of workshop scheduling and intelligent manufacturing. Due to its complexity and significance, lots of attention have been paid to tackle this problem. This paper reviews some of the researches on this problem, by presenting and classifying the different criteria, constraints, and solution approaches. The existing solution methods for the flexible job shop scheduling problem in this literature are classified into exact algorithms, heuristics, and meta-heuristics, which are thoroughly reviewed. Particularly, the paper highlights the flexible job shop scheduling problem in the context of dynamic events and preventive maintenance. These dynamic events, such as machine breakdowns and unexpected changes in job requirements, present additional challenges to the scheduling problem. Furthermore, this paper analyzes the development trends in the manufacturing industry and summarizes detailed future research opportunities for the flexible job shop scheduling problem.