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The multi-stage deep neural network in the blind motion image deblurring task lacks a large range of receptive fields and it was difficult to reasonably interact with the image features of each stage. A progressive depth networkP (DNet) with dilated convolution and contextual attention fusion module was thus proposed for restoring sharp images.This method included three stages: local feature extraction, image feature integration and image restoration.In the local feature extraction stage and image feature integration stage, multi-branch dilated convolution module (MDCB) was used to increase receptive field to adapt to different degrees of motion blur. In the image feature integration stage and image restoration stage, the contextual attention fusion module was used for information interaction of image features in different stages to achieve progressive image feature enhancement.The proposed method could make full use of local and global image features to guide image restoration through the three-stage progressive enhancement strategy, so as to generate sharp and high-quality images.The experimental results showed that compared with SRN and other networks, the proposed PDNet had a better effect on GoPro data set and RealBlur-J data set, and the peak signal to noise ratio (PSNR) had an average increase of 2.9 dB, and the structural similarity (SSIM) had an average increase of 0.05. [ABSTRACT FROM AUTHOR]

In order to realize the robot's learning of teaching sewing motion,a robot motion learning method based on Gaussian Mixture Model(GMM)-Gaussian Mixture Regression(GMR)was proposed. The improved OPENPOSE model was used to recognize the teaching sewing movements, and the label fusion method was used to correct the joint point labels, so as to solve the problem of joint positioning failure caused by cloth occlusion during the sewing process. Taking the coordinates of the human upper limb joints as training samples of sewing motion, the trajectory samples were divided into motion primitives by time interval, and each motion primitive and its corresponding time were mixed-encoded using GMM to obtain the regression function of the Gaussian component. Besides, GMR was used to predict the connection among motion primitives to generate the sewing motion trajectory, update the Gaussian parameters of regression function, and realize the learning of worker' upper limbs sewing motion. Through the simulation experiment of trajectory tracking and experiment comparison with Kalman method, the stability and effectiveness of the sewing motion learning method were verified. [ABSTRACT FROM AUTHOR]

In order to solve the problems of fuzzy edge segmentation and imprecise segmentation of small objects in image semantic segmentation, a high-precision semantic segmentation method was proposed. The method used MobileNetV3 network to extract multi-level shallow contour features and deep semantic features, and then fused the multi-level shallow contour feature information with the deep semantic feature information by Pyramid pooling module and up-sampling operation in PSP-Net model, so as to realize the high-precision semantic segmentation with multi-level feature fusion. The experimental results on the Nyu-V2 dataset show that the proposed algorithm can improve the description ability of small target features. The generalization of the proposed algorithm is further verified on the Pascal-VOC2012 dataset. Experimental comparison with three mainstream methods shows that the segmentation accuracy of the proposed algorithm increases by 2.1% compared with Deeplabv3+, by 5.1% PSP-Net and by 10.9% SEG-Net. [ABSTRACT FROM AUTHOR]

The local binary descriptors in AKAZE algorithm are not sensitive to image scale change and fuzzy change, which leads to uneven feature point extraction and low accuracy of feature matching. An improved feature matching algorithm combining AKAZE and MAGSAC was thus proposed. In this algorithm, the FREAK descriptor was used to describe the feature points, and the main direction of the feature points was determined by calculating the gradient of the sample points. The MAGSAC method was used to eliminate the wrong match points. The experimental results showed that the matching accuracy of the improved algorithm was 6. 98% higher than that of the traditional AKAZE algorithm when the image changed in scale and rotation, and the average time of feature point extraction was 0. 084 ms less than that of the traditional AKAZE algorithm when the image changed in scale; the matching accuracy was 8. 57% higher than that of the traditional AKAZE algorithm when the image changed in blur, and the average time of feature point extraction was 0. 05 ms less than that of the traditional AKAZE algorithm. [ABSTRACT FROM AUTHOR]

左心室血栓(LVT)是急性心肌梗死(AMI)的严重并发症之一,多见于急性前壁心肌梗死和存在左心室室壁瘤的患者。多数研究认为LVT的形成与AMI后左心室室壁运动障碍、内膜受损及血液高凝状态有关。当前LVT的诊断主要依赖于经胸超声心动图(TTE)及对比增强心脏磁共振成像(CMR);华法林仍是目前LVT的标准治疗方案,新型口服抗凝药的安全性及有效性需进一步研究。LVT的临床危害主要在于局部血栓脱落可致严重血栓栓塞事件,因此LVT的预防、早期发现与及时有效的治疗,具有重大的临床意义。 [ABSTRACT FROM AUTHOR]

The application of software is a basic guarantee for the work of colleges and universities, and it occupies a large proportion in the assets of colleges and universities. However, due to the diversification of the use of software, nonphysical attributes of the manifestation, the difference of asset classification and the uncertainty of the value standard, the management and use of software has been a fuzzy understanding and operating blind area. Especially the asset type of software that should be recorded in the shape of fixed or intangible assets is a constant focus of controversy in the management department of author’s university. By analyzing the main problems in management, the countermeasures are put forward, such as strengthening of the top design, putting under centralized management by specialized department, strengthening the budget argument, procurement, acceptance, use, disposal, and strengthening the protection of property rights and other aspects of response. And the asset type of software is classed by its initial source. [ABSTRACT FROM AUTHOR]

Objective: To investigate the depression of elderly patients with lung cancer during chemotherapy and its related factors. Methods: A total of 300 elderly patients with lung cancer treated with chemotherapy in our hospital from January 2012 to December 2016 were selected. The basic information of the patients were investigated and statistics, and Zung's self rating depression scale was used in the evaluation of depression of patients. The evaluation results were collected, and the single factors and related factors of depression were statistically analyzed by logistic regression analysis. Results: Among the 300 cases of elderly patients with lung cancer. 164 patients were depressed during chemotherapy, accounting for 54.67% .59 cases among them were mild depression, accounting for 35.98%; 90 cases were moderate depression, accounting for 54.88%; 15 cases were severe depression, accounting for 9.15%. The Single factor analysis showed that the incidence of depression in elderly patients with lung cancer was related to age. income level, TNM stage and cancer metastasis (all P<0.05), and was not related to gender, educational level and cancer type (P>0.05). Multivariate Logistic regression analysis showed that factors related to depression in elderly patients with lung cancer were age ≥ 70, income level- 3000 yuan month, TNM stage III-IV and cancer metastasis (P<0.05). Conclusion: Elderly patients with lung cancer are prone to depressive symptoms during chemotherapy, which should be paid attention to in clinic. Age ≥ 70. income level < 3000 yuan month, TNM stage III-IV and cancer metastasis are the related factors of depression in elderly patients with lung cancer, and appropriate intervention measures should be taken as soon as possible for the related factors, in order to improve the negative emotions of patients. [ABSTRACT FROM AUTHOR]

In the garment hanger system, because the position of finger clip of coat hanger is not accurate, the hanging robot can not accurately clamp the garment pieces. Thus a method of finding the minimum bounding rectangle of the matching point set is given hy using the scale-invariant feature transform (SIFT) algorithm to locate the coat hanger. In this method, the SIFT algorithm is used to recognize the clothes rack image, the Graham algorithm is used to get the convex hull of the matching point set, and the minimum bounding rectangle is obtained. Finally, the image coordinates of the hangers are determined according to the proportion of thehangers. The results show that this method can effectively locate the finger clip of coat hanger on the garment hanger system9 it has certain reference significance for the development of the hanging robot. [ABSTRACT FROM AUTHOR]

Objective To study the effect of pre-operative internal iliac artery capsule combined with the lower segment of the uterus with annular suture on the treatment of postpartum hemorrhage caused by dangerous placenta previa and the long-term effect of the operation. Methods from January 1, 2015 to March 31, 2017,the second people’s Hospital of Yunnan province for Cesarean danger in placenta of patients using preset internal iliac artery balloon combined with lower uterine segment ring-shaped suture in the treatment of 22 cases of patients as research group, Lower uterine segment multiple is not used in loop suture for treatment, but has a preset internal iliac artery balloon 18 cases of dangerous patients with placenta previa, as retrospective analysis clinical data of the comparison group. Results Mean blood loss in 22 patients 1329.54±290 ml. Does not occur in all patients around organ damage and other complications. 1 examples of hysterectomy. 5.23 days postoperative average hospital stay.After 3 months of follow-up ultrasound, uterus shape well. In 18 patients in the control group average blood loss1451.11 ±311 ml of blood loss were significantly higher in the study group, there was a statistically significant difference(P<0.05). 2 examples of hysterectomy in the control group. Uterine reservations there was statistically significant(P<0.05). Conclusion Combined preset internal iliac artery balloon uterus circular suturing for the dangerous result of placenta previa with placenta accreta intraoperative uterine bleeding for better effect. [ABSTRACT FROM AUTHOR]

Objective To analyze the presence of fetal deformation inconsistencies in different mode of delivery through evaluating the value of ultrasonography during the diagnosis of Cephalic presentation dystocia， and provide a theoretical guide to early identify Cephalic presentation dystocia with the proper usage of ultrasound. Methods In the study，through a case-control design，total term maternal 260 cases were selected from the Second People's Hospital of Yunnan Province from July 2015 to October 2016 deliveries which were normal pelvis. These pregnant women were measured by LaborPro Delivery monintoring system's noninvasive monitoring. Among those cases excluding fetal distress and social factors，there were 149 cases of natural childbirth，46 cases of forceps deliveries and 65 cases of caesarean birth. Comparing the difference of the related indicators such as fetal biparietal diameter，head circumference in three groups' data, the paper assessed the value and limitations of ultrasonography for identifying Cephalic presentation dystocia, and analyzed possible reasons of its limitations．Results In these ultrasound indicators， there were significant differences of BPD， head circumference, upper abdominal circumference values between Dystocia group and Natural childbirth group(P<0.05) . B-ultrasonic indicators of biparietal diameter，head circumference provided valuable prediction for dystocia prediction. Natural childbirth， forceps deliveries and cesarean birth, there were some differences of BPD and the head circumference changing of the amplitude(P<0.05) . Conclusions The ultrasound can not be completely as a basis for judging cephalopelvic disproportion. This study shows that the presence of fetal deformation inconsistencies in different mode of delivery. Therefore，Clinical evaluation of head-position dystocia requires comprehensive use of ultrasound and other relevant clinical examinations. [ABSTRACT FROM AUTHOR]

As the global path is not optimal which combines rolling windows and behavioral dynamics, a on-line path planning approach is presented which based on reinforcement learning. The parameter is optimized by Q learning, in order to improve behavior dynamics model performance. The search process is guided by behavioral dynamics, which increases the learning efficiency. While the Q table is updated in each episode, the action selection knowledge is also built and revised automatically, so the learning is optimized. Simulation experimental results show that Q learning efficiency increases obviously. Global path is on-line planned, which is optimized and smoothing. [ABSTRACT FROM AUTHOR]

Objective To analyze the changes of postoperative pulmonary function in lung transplant recipients. Methods Clinical data of 81 recipients undergoing bilateral lung transplantation and combined heart-lung transplantation were collected, and postoperative status of the recipients was analyzed. Pulmonary ventilation and diffusion function indexes at 1 month, 3 months, every 3 months (3-18 months after lung transplantation) and every 6 months (18-36 months after lung transplantation) were analyzed in the recipients. The characteristics of the optimal pulmonary function in the recipients were assessed. Results Postoperative mechanical ventilation time was 4 (2, 9) d, and the length of postoperative ICU stay was 10 (7, 20) d. Among 81 recipients, 27 recipients developed primary graft dysfunction (PGD) after lung transplantation, with an incidence rate of 33%. Postoperative forced vital capacity (FVC) to predicted value ratio (FVC%pred), forced expiratory volume in one second (FEV1) to predicted value ratio (FEV1%pred), FEV1/FVC to predicted value ratio (FEV1/FVC%pred) and corrected diffusion lung capacity for CO to predicted value ratio (DLCOc%pred) were changed over time (all P<0.001). FVC%pred and FEV1%pred were gradually increased within postoperative 9 months, and DLCOc%pred was gradually elevated within postoperative 3 months (all P<0.05). Thirty-six recipients had FVC%predı80%, FEV1%predı80% in 41 cases, FEV1/FVC%predı92% in 76 cases, FVC%predİ40% in 1 case and FEV1%predİ40% in 1 case, respectively. Sixteen recipients had DLCOc%predı80%, corrected diffusion lung capacity for CO/alveolar volume to predicted value ratio (DLCOc/VA%pred) ı80% in 63 cases, DLCOc%predİ40% in 4 cases and DLCOc/VA%predİ40% in 1 case, respectively. Postoperative FVC%pred, FEV1/FVC%pred and DLCOc%pred in recipients with a primary disease of obstructive pulmonary disease were significantly higher than those in their counterparts with restrictive pulmonary disease (all P<0.05). Postoperative DLCOc%pred in recipients with PGD was significantly lower than that in those without PGD (P<0.05). Conclusions Pulmonary ventilation function in lung transplant recipients reaches the optimal state and maintains a steady state at postoperative 9 months, and pulmonary diffusion function reaches a steady state at postoperative 3 months. Primary diseases and the incidence of PGD may affect postoperative pulmonary function. [ABSTRACT FROM AUTHOR]

In order to solve the problem of low recognition rate of MFCC parameter, a feature extraction algorithm based on the Bark wavelet packet transform with Fisher is put forward. Firstly, wavelet packet transform is used to construct Bark filter, which can replace the triangular Mel filter. According to the Fisher criterion, feature parameters filtered by Bark filter are adopted, removing the interference information and saving the time of feature matching. Simulation results show that the algorithm is able to enhance the recognition rate and robustness. [ABSTRACT FROM AUTHOR]

Objective To study the chemical constituents from the Stichopus variegatus. Method The compounds were isolated and purified by silica gel column chromatography, Sephadex LH-20 gel filtration and recrystallization. The structures of these compounds were identified through chemical reactions and spectral analyses, such as IR,1H,13C NMR,MS. Results Three compounds were identified as 3-O-[3-O-methyl-β-D-glucopyranosyl(1→3)-β-D-xylopyranosyl(1→3)-β-D-glucopyranosyl(1→2)-β-D-xylopyranosyl]-holosta-7,24-diene-3β,23S-diol, named as variegatuside C; 3-O-{3-O-methyl-β-D-glucopy-ranosyl(1→3)-β-D-xylopyranosyl(1→4)-β-D-glucopyranosyl(1→2)[β-D-glucopyranosyl(1→4)]-β-D-xylopyranosyl-holosta-8-ene-3β,23S-diol, named as variegatuside D; 3-O-{3-O-methyl-β-D-glucopyranosyl(1→3)-β-D-xylopyranosyl(1→4)-β-D-glucopyranosyl(1→2)[3-O-methyl-β-D-glucopyranosyl(1→3)-β-D-glucopyranosyl(1→4)]-β-D-xylopyranosyl｝-holosta-9-ene-3β, 23S-diol, named as variegatuside E. Conclusion All three compounds are new compounds. [ABSTRACT FROM AUTHOR]

Objective To investigate the potential role and clinical significance of matrix metalloproteinase 9 ( MMP-9), anti-endothelial cell antibodies (AECA) and anti-neutrophil cytoplasmic antibodies (ANCA) in vasculitis and coro-nary artery lesions ( CAL) of patients with Kawasaki disease ( KD) .Methods Forty-two children with KD were divided into two groups:CAL group (n=16) and non-coronary artery lesion (NCAL) group (n=26).Twenty febrile children and 15 children for selective operation were chosen as the control group.Serum levels of MMP-9, AECA and ANCA were meas-ured by enzyme-linked immunosorbent assay ( ELISA) , fluorescence quantitative-PCR and gelatin zymography were respec-tively used to detect MMP-9 mRNA expression and enzyme activity.Results The MMP-9 mRNA expression, protein level and enzymatic activity in the acute phase of KD patients were all higher than those in the two control groups ( all P<0.01), and they were significantly higher in the CAL group than in the NCAL group (all P<0.05).Moreover, MMP-9 mRNA expression, enzymatic activity and protein level were decreased significantly in the remission phase (all P<0.01). Serum AECA and ANCA protein levels of KD patients in the acute phase were significantly higher as compared with those of the two control groups (all P<0.01).The protein level of ANCA in the CAL group was significantly higher than that of the NCAL group (P<0.01).There was a positive correlation between serum MMP-9 and AECA protein in the acute phase of KD (r=0.77, P<0.01).The serum MMP-9 and ANCA protein levels of the CAL group in the acute phase were both positively correlated with LCA/AAO ratio (r=0.57, P<0.05;r=0.88, P<0.01).Conclusions MMP-9, AECA and ANCA are potential pathological factors in the formation of KD vasculitis and CAL.The serum level detection has a certain value for early prediction of CAL. [ABSTRACT FROM AUTHOR]

Development and sharing of excellent resources have got continuous attention with the presentation of balanced development of education theory. In recent years, numerous colleges and universities were realized excellent resources sharing through regional sharing, inter-regional sharing and remote information sharing patterns. By using the research techniques with the combination of theory analysis and empirical investigation and on the basis of having compared analysis to the development of those education resources sharing at home and abroad, the authors think that the domestic colleges and universities should change the shared consciousness and conception, build the policy oriented mechanism as well as establish the common operating mechanism. These colleges and universities should further boost the quality resources to have a sound progress with joint development, co-sharing and win-win situation. [ABSTRACT FROM AUTHOR]

摘要：目的观察靶向抑制Livin表达对子宫内膜癌细胞增殖、侵袭及迁移能力的影响-方法取人子宫内膜 癌Ishikawa细胞，将细胞分为Livin-Si组、Livin-NC组和空白对照组。设计合成Livin的特异性小分子干扰RNA (Livin-siRNA)和阴性对照序列(Livin-NC)，Livin-Si组、Iivin-NC组分别采用脂质体法瞬时转染Livin-siRNA干扰序 列、Livin-NC阴性对照序列，空白对照组加人10% FBS:转染后48 h，实时荧光定量PCR法检测Livin mRNA表达， CCK>8法检测细胞增殖能力Jranswell小室实验观察细胞侵袭及迁移能力。结果 Livin-Si组Livin mRNA相对表 达量较Iivin-NC组、空白对照组减少(P均<0.01)。Livin-Si组细胞增殖OD值低于Livin-NC组和空白对照组 P均<0.01)。与Livin-NC组、空白对照组比较，Livin-S组穿膜细胞数均减少(P均<0.01):结论抑制Livin在子 宫内膜癌Ishikawa细胞中的表达，可抑制细胞的增殖，减弱细胞的侵袭及迁移能力。 [ABSTRACT FROM AUTHOR]

To solve the bus safety problem,an embedded vehicle monitoring terminal system is developed.Taking advantage on the integrated sensor technology, video acquisition technology, GPS positioning technology, GSM technology, the system sends the real-time acquisition information to the bus monitor center via GPRS networks, and makes the information displayed on the graphical user interface. It will send the vehicle short message when an emergency happens. It is proved by the experimental test that the system runs stably, which,with real-time data, meets the needs of the public transport safety. [ABSTRACT FROM AUTHOR]

Objective To investigate the influence of mild psoriasis on the quality of patients' lives. Methods Based on PASI score and quality of life index, a questionnaire was designed to investigate the quality of lives in aspects of physiology, psychology, daily life, social entertainment, family, work and study in 95 patients with mild plaque psoriasis, aged 18~65 years. Logistic regression was used to analyze the quality of life-related factors. Results The quality of lives of 45 patients (47.37%) was affected by psoriasis. Moreover, an increase in one PASI score increased the risk of affecting quality of lives to 1.291 times, while an increase in one PGA score increased the risk of affecting quality of lives to 3.574 times. Conclusion Mild plaque psoriasis can affect the quality of patients' lives to some extent. [ABSTRACT FROM AUTHOR]

Objective To evaluate clinical efficacy of lung transplantation for lung chronic graft-versus-host disease (cGVHD) after hematopoietic stem cell transplantation (HSCT). Methods Clinical data of 12 patients undergoing lung transplantation for lung cGVHD were retrospectively analyzed. Preoperative clinical manifestations and involved organs of patients were analyzed. The lung function before and after lung transplantation was compared, and the survival of patients after lung transplantation was analyzed. Results Eleven patients underwent HSCT due to primary hematological malignancies, including 9 cases of leukemia, 1 case of myelodysplastic syndrome, 1 case of lymphoma. And 1 case underwent HSCT for systemic lupus erythematosus. Among 12 cGVHD patients, skin involvement was found in 8 cases, oral cavity involvement in 5 cases, gastrointestinal tract involvement in 4 cases and liver involvement in 3 cases. All 12 patients developed severe respiratory failure caused by cGVHD before lung transplantation, including 9 cases of typeⅡ respiratory failure and 3 cases of type Ⅰ respiratory failure. Two patients underwent right lung transplantation, 2 cases of left lung transplantation and 8 cases of bilateral lung transplantation. The interval from HSCT to lung transplantation was 75 (19-187) months. Upon the date of submission, postoperative follow-up time was 18 (7-74) months. Ten patients survived, 1 died from severe hepatitis at postoperative 22 months, and 1 died from gastrointestinal bleeding at postoperative 6 months. No recurrence of primary diseases was reported in surviving patients. Conclusions Lung transplantation is an efficacious treatment for lung cGVHD after HSCT, which may prolong the survival time and improve the quality of life of the recipients. [ABSTRACT FROM AUTHOR]

Aiming at the trajectory tracking control problem of manipulator, a model predictive control method of manipulator trajectory tracking based on terminal constraint is proposed. Firstly, the trajectory tracking problem was transformed into a numerical programming problem of model predictive control by setting objective function and constraint conditions. Secondly, in order to ensure that each manipulator could effectively track the desired trajectory in the time domain, the terminal state equality constraint was applied to the original constraints. Finally, feedback correction control was realized by rolling optimization mechanism in the control time domain. The Gazebo-Simulink co-simulation platform was used to verify the control method and its effectiveness was verified. The co-simulation results show that the tracking error of each joint of the manipulator can be reduced to 1×10-3 rad within 0.31 s, which has good tracking performance and control stability. [ABSTRACT FROM AUTHOR]

We report a case of disseminated blue nevus-like melanoma with BRAF and CTNNB1 gene mutations. A 34-year-old man developed generalized blue-black maculopapules and nodules, sized 3-15 mm in diameters, all over the body, including the palms, soles, mucosa of the mouth and eyes for more than six months. The skin pathology showed a large number of epithelioid cells and melanin in the dermis, and immunohistochemistry showed positive for HMB-45, Mitf, SOX-10 (partially), Melan-A (slightly), S-100 (slightly) and Ki-67(about 10%). BRAF V600E (c1799T>A) and CTNNB1 T41I (c.122C>T) mutations were detected by tissue melanoma-related gene detection. Multiple liver nodules were found by PET-CT examination. The patient was diagnosed with disseminated blue nevus-like melanoma. After two months of treatment with dabrafenib mesylate and trametinib, the skin rashes became smaller and no new lesions were observed. Now the patient was lost to follow up. [ABSTRACT FROM AUTHOR]

Due to the uncertainty over the trajectory planning time of robot in joint space, a chaotic adaptive fireworks algorithm (CAFWA) is proposed, which can realize the time optimal trajectory planning within speed constraint. Firstly, through the combination of chaotic algorithm and adaptive fireworks algorithm, stochastic initialization is changed to chaotic initialization, and chaotic algorithm is used to screen the offspring produced by selection strategy in order to improve the convergence accuracy and speed. Then eight standard test functions are selected for testing and compared with other methods. Finally, the robot time-optimal trajectory planning problem was solved by Matlab based on CAFWA, and the shortest running time of the robot is obtained. The results show that CAFWA has high solution auuracy and is suitable for solving multi extremum problems, and that the algorithm can realize time-optimal trajectory planning within speed constraint and verify its correctness. [ABSTRACT FROM AUTHOR]

In order to realize flexible fabric’s grasp by dexterous hand, a research method of modeling and simulation using Matlab is proposed. First, the structure of three-fingered dexterous hand is designed according to the requirements of tasks. Second, kinematics modeling of dexterous hand is established with D-H parameter method by describing homogeneous coordinates transformation relation of fingers’ connecting rod, and linear interpolation algorithm is used for trajectory planning in cartesian space. Finally, simulation experiment is carried out by Matlab software, and the results show that the design of the dexterous hand is reasonable, and the modeling is accurate and reliable, and the trajectory planning algorithm is expectant,and can achieve the operation of the arbitrary shape object in its operating space. [ABSTRACT FROM AUTHOR]

目的 毛细管电泳片段分析法, 荧光定量 PCR法在急性下呼吸道感染患儿咽拭子标本病原体诊断中的 应用。方法 急性呼吸道感染患儿65例 (65份咽拭子标本), 分别采用毛细管电泳片段分析法, 荧光定量PCR法检 测患儿咽拭子病原体，比较两种方法病原体检出率，并分析两种检测方法与金标准 (Sanger测序法) 检测结果的-致 性。结果 毛细管电泳片段分析法病原体检出率为 52. 3% (呼吸道合胞病毒 21份, 副流感病毒 4份, 衣原体病毒 2 份, 腺病毒2份, 鼻病毒2份, 偏肺病毒3份, 博卡病毒1份，其中1份为合胞病毒与鼻病毒混合感染), 荧光定量PCR 法病原体检出率为45. 0% (呼吸道合胞病毒20份, 副流感病毒3份, 衣原体病毒2份, 腺病毒1份, 鼻病毒1份), 两种 方法病原体检出率比较，P>0. 05。毛细管电泳片段分析法与Sanger测序法检测结果阳性-致率为100. 0%，阴性- 致率为100. 0%，准确率为100. 0%；荧光定量PCR法与Sanger测序法检测结果阳性-致率为86. 2%，阴性-致率为 93. 5%，准确率为90. 0%。结论 毛细管电泳片段分析法与荧光定量PCR方法病原体检出率无差异，但毛细管电泳 片段分析法能检测出病原菌混合感染，且与Sanger测序法检测结果有高度-致性，有更高的临床应用价值. [ABSTRACT FROM AUTHOR]

Objective To investigate the treatment on de novo donor specific antibody (dnDSA) mediated acute rejection after lung transplantation. Methods Clinical data of 1 recipient with antibody-mediated rejection (AMR) early after lung transplantation was retrospectively analyzed. The process of diagnosis and treatment were assessed. Results The recipient underwent right lung transplantation due to systemic sclerosis-associated end-stage interstitial lung disease. Preoperatively, classⅠ panel reactive antibody (PRA) was positive (11%). No pretreatment was given before transplantation. Antithymocyte globulin induction therapy was delivered on the day of transplantation and postoperatively. The recipient was properly recovered early after transplantation. Chest tightness and shortness of breath occurred at postoperative 13 d, which were progressively worsened and rapidly progressed into type Ⅰ respiratory failure. Class Ⅰ PRA was increased to 58%, and dnDSA was observed at the loci of A24: 02. The mean fluorescence intensity (MFI) was 2 110. According to the guidelines of International Society for Heart and Lung Transplantation, the recipient was diagnosed as possible AMR. After comprehensive treatment including plasmapheresis, protein A immunoadsorption, glucocorticoid pulse, rituximab and immunoglobulin intravenous drip, the PRA and DSA levels were gradually decreased, and the MFI of DSA was 0 at postoperative 20 d. Clinical condition of the recipient was gradually improved. The dyspnea was healed, shortness of breath was eased, respiratory failure was treated, and pulmonary effusion was gradually absorbed. At postoperative 45 d, the recipient was discharged after full recovery. During 1-year follow-up, the recipient was physically stable and obtained normal quality of life. Class Ⅰ PRA was 5%, and class Ⅱ PRA was negative. No DSA was noted. Conclusions Based on traditional drug therapy, supplement of protein A immunoadsorption therapy may effectively eliminate DSA from the circulating blood of the recipient and mitigate the damage of target organs. Ideal short- and long-term prognosis may be achieved. Traditional drug therapy combined with immunoadsorption may yield ideal efficacy in treating AMR after lung transplantation. [ABSTRACT FROM AUTHOR]

A trajectory tracking control method was proposed based on improved Funnel control and with RBF adaptive neural network to address the steady-state and transient performance constraints of a flexible joint robotic manipulator system with unknown input saturation. The non-differentiable in the control law was avoided by designing improved Funnel control variables. The construction of time-varying transient performance constraint function made it possible to qualitatively design the overshoot amount and convergence speed in the initial stage of the system output; The problem of excessive computational burden in the back-stepping step method and the unknown function of the flexible-joint robotic manipulator system were approximated by the RBF adaptive neural network with minimum parameter learning method, which simplified the design of the controller; The Lyapunov stability theory justified that all variables in the closed-loop system are semi-global uniformly ultimately bounded (SGUUB), and simulation experiments verified the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]

Object recognition is one of the main contents of machine vision research. RGB-D image, which integrates depth features, provides a new way for accuracy improving of object recognition. In order to obtain its complete summary of many achievements in recent years. Firstly, the research of object recognition based on RGB-D image was summarized, and the advantages of RGB-D object recognition combined with depth image were discussed. Secondly, based on the analysis of the sample characteristics of RGB-D dataset, the characteristics of the early manual feature recognition method based on early knowledge and the RGB-D object recognition method based on feature learning were summarized and analyzed, and the multi-modal fusion method of RGB-D data was discussed in detail. Finally, based on the Washington RGB-D object dataset, the recognition results of more than 20 models and encoding methods were systematically compared and analyzed, and the trend and future research direction of RGB-D object recognition were prospected. [ABSTRACT FROM AUTHOR]

To solve the problem that the number of mobile robots increases in the limited environment, a multi-robot motion planning method based on formation consistency was proposed.The model combined the obstacle avoidance model based on spring force mapping and the improved model of consistency to ensure the efficiency of formation obstacle avoidance.In addition, the shared obstacle avoidance information of navigation robot was added, and the dynamic speed limit function was added to ensure the formation of the moving team.Finally, a workshop simulation environment with and without dynamic conflict was designed, and motion planning experiments were carried out on a formation composed of 5 to 20 robots.The results show that:compared with the average path length of 5 robots formation and 20 robots formation, the average path length only increases by 4.70% in the environment without dynamic conflict, and only increases by 1.65% in the environment with dynamic conflict.The motion planning method proposed in the expository text can effectively adjust the number of robots, has better stability for the influence of the number of robots. [ABSTRACT FROM AUTHOR]

To solve the problem of complex and changeable manipulator trajectory planning and design, a three-stage trajectory planning scheme combining Cartesian space and joint space planning was proposed, which was divided into grasping initial segment, grasping transition segment and grasping final segment. The grasping initial segment was based on fast and convenient operation requirements, the quintic polynomial interpolation algorithm was used; the grasping transition segment was based on the operational requirements of reducing shocks,and S-shaped speed algorithm was used; the grasping final segment was based on precise and smooth operating requirements, and the NURBS curve fitting was applied. The simulation result shows that the design scheme has the advantages of stable operation, and high precision, the speed increases by 14. 2% and 5%, and the trajectory is smooth without mutation, which has a certain value in promotion and application. [ABSTRACT FROM AUTHOR]

To solve the problem that individual RGB images are susceptible to background interferencein face recognition systems, a real-time face recognition and tracking solution combining depth images is proposed. Propose a tracking mode combining Hungarian algorithm and HMM algorithm to filter potential interference information. Finally, the robot platform is built. The single-target and multi-target recognition test experiments were carried out in the real scene. The experimental results show that the proposed face recognition scheme has an accuracy of 94.3% for real-time face recognition, 76 ms for head positioning, and an average recognition time of only 761.17 ms.The experimental results show that the method is robust while maintaining good accuracy, and can meet the needs of smart home mobile robot face recognition. [ABSTRACT FROM AUTHOR]

心脏脂肪瘤是一种由含包膜或不含包膜的脂肪细胞组成的原发性心脏良性肿瘤,可发生于心脏的任何区域。根据其镜下表现可将心脏脂肪瘤分为三类:孤立性脂肪瘤、肌间脂肪瘤、特殊类型脂肪瘤(包括房室瓣脂肪瘤样错构瘤、房间隔脂肪瘤样肥厚)。绝大多数患者临床症状体征无特异性。心脏脂肪瘤不易脱落,较少形成栓塞。最初往往通过心脏彩超发现,经CT及MRI检查可进一步明确性质及浸润程度,组织病理检查是诊断心脏脂肪瘤的金标准。目前对于体积较大的特别是已经出现临床症状的心脏脂肪瘤患者,应行外科手术切除。术后并发症较少,预后一般良好,多无复发。 [ABSTRACT FROM AUTHOR]

The current power grid fault diagnosis mainly relies on a single artificial intelligence algorithm.For complex fault problems, misdiagnosis and missed diagnosis often occur. To solve this problem, a power grid fault diagnosis method based on quantum genetic algorithm to optimize rough-Petri network is proposed. The algorithm is used to reduce the attribute of rough sets, the quantum revolving gate is used to realize the evolution of chromosomes to achieve higher convergence speed and global optimal search,and then the minimum decision table is reduced.Combining with the eotracted diagnostic rules, the Petri net model is established to infer the efficient grid fault diagnosis. The example analysis shows that the model can accurately diagnose the fault area and has good speed and accuracy. [ABSTRACT FROM AUTHOR]

In order to solve the problem of low utilization of resource in present automatic manufacturing system, an optimization method based on timed Petri nets for automatic manufacturing system production scheduling is proposed. According to the characteristics of automatic manufacturing system such as asynchronism and concurrency, the model of automatic manufacturing system is established using timed Petri nets. Under the condition of avoiding resource conflicts in the multi-line automatic manufacturing system, the basic circuit determination algorithm of the network model and basic circuit processing time optimization algorithm are designed to calculate the process sequence and determine the optimization time. Accroding to analysis of example and verification, the optimization effect of the displayed algorithm is good, and the effectiveness of the application of time Petri nets to the scheduling optimization algorithm of automatic manufacturing system is proved. [ABSTRACT FROM AUTHOR]

Aiming at the system’s transient stability problem of generator valve regulation system, excitation system and STATCOM in coordinated control design, a nonlinear coordinated control method based on inverse system theory and adaptive variable structure control is presented. The nonlinear mathematical model of STATCOM, generator excitation and turbine valve adjustment is established. The dynamic inverse system method is used to linearize the model. Then, combined with variable structure control theory, a variable structure coordination controller(VSCC)can be designed to improve the dynamic performance of the system. Finally, a new approach law is designed by using power approach law and saturation function to eliminate the chattering problem caused by the variable structure itself.The simulation results show that turbine value and STATCOM controlled the response time after disturbance is shorter. Therefore, the designed VSCC,compared with the generator excitation, can effectively improve the transient performance of the system. [ABSTRACT FROM AUTHOR]

心房颤动（房颤）是临床上最常见的心律失常，以往认为房颤的危害主要包括栓塞并发症特别是脑卒中以及房颤发作时产生的不适症状、心功能不全、心室率快的患者容易产生心律失常性心肌病等。通常认为房颤不属于直接危及生命的"恶性"心律失常，但越来越多的证据显示，房颤也远非"良性"，它不仅有增加脑卒中、心衰和总死亡率的风险，而且可能直接促进室性心律失常的发生，使发生心源性猝死的风险增加２～３倍。本文就急性心肌梗死后反复发作房颤室速室颤病例的心电现象进行探讨分析。 [ABSTRACT FROM AUTHOR]

In the textile industry, the sorting of fabric is still based on manual sorting, low efficiency and high labor cost.In order to solve these problems, fabric grabbing robot of binocular vision system design based on HALCON and VC++ mixed programming is designed. HALCON and VC++ mixed programming realized the fabric image segmentation and centroid calculation. The fabric image segmentation using the method of thre shold segmentofion. Then, using ergodic central method to get the maximum inscribed rectangle of fabric. And then get world coordinates of fabric through camera calibration. Finally, using the robot trajectory planning to achieve the fabric automatically crawl. [ABSTRACT FROM AUTHOR]

目的探讨慢性肾脏病患者发生血管内皮功能障碍的影响因素。方法选取慢性肾脏病3 ~5期患者 125例，均通过血管超声检测血流介导的舒张功能（FMD)，以FMD中位数为界点，将患者分为FMD為6.4%组和 FMD <6.4%组，收集两组临床病理资料。采用单因素及多因素Logistic回归分析法分析慢性肾脏病患者发生血管 内皮功能障碍的影响因素结果两组年龄、性别、BMI、24 h尿蛋白、LDL比较差异均无统计学意义（P均> 0.05); FMD < 6.4%组收缩压、舒张压、高敏C反应蛋白、肌酐、尿酸水平均高于FMD多6. 4%组，肾小球滤过率 (GFR)低于FMD》6.4%组（P均<0.05)。多因素分析结果显示，尿酸、GTO是慢性肾脏病患者发生内皮功能障碍 的独立影响因素（P均