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Objective The purpose of this study is to construct and evaluate a kinesiophobia intervention plan based on the Behavior Change Wheel (BCW) theory in patients with acute myocardial infarction after percutaneous coronary intervention (PCI). Methods A total of 90 patients with acute myocardial infarction and fear of exercise who underwent PCI at Xuzhou Central Hospital from October 2022 to October 2023 were selected. To ensure that basic characteristics were balanced and comparable between groups, 45 cases were assigned to each intervention group and control group. The control group implemented a routine nursing plan, while the intervention group implemented a kinesiophobia intervention plan based on BCW theory on the basis of the control group. Firstly, an intervention team and expert group were formed to construct and implement a kinesiophobia intervention plan based on BCW theory. Both groups of patients were intervened for 3 months. Compare the differences in kinesiophobia levels, anxiety and depression levels, and exercise self-efficacy levels between two groups of patients after intervention. Results After intervention, the scores of tampa scale for kinesiophobia heart kinesiophobia(TSK-SV Heart), Generalized Anxiety Disorder (GAD-7) and Patient Health Questionnaire–9(PHQ-9) in the intervention group were lower than those in the control group at discharge from hospital, one month after discharge and three months after discharge, with significant difference (P＜0. 05). After intervention, the Self-Evaluation Exercise (SEE) scores of patients in the intervention group were higher than those in the control group at all time points, with significant difference (P＜0. 05). Conclusion The intervention plan for kinesiophobia in patients with acute myocardial infarction after PCI, designed based on the BCW theory, is detailed in content, scientifically systematic, and highly practical, providing useful guidance for clinical practice. This intervention plan can not only reduce patients' level of kinesiophobia, alleviate negative emotions such as anxiety and depression, but also enhance patients' exercise self-efficacy, thereby improving their postoperative quality of life. (目的 探究基于行为改变模式(BCW)理论的急性心肌梗死经皮冠状动脉介入治疗(PCI)术后患者运动恐惧干预方案的构建与应用效果评价。方法 选取2022 年10月—2023年10月徐州市中心医院收治的急性心肌梗死PCI 术后并存在运动恐惧的患者90 例。按照组间基本特征均衡且具有可比性的原则分为干预组和对照组, 各45例。对照组实施常规的护理方案, 干预组在对照组的基础上施行基于BCW理论制定的运动恐惧干预方案, 首先组建干预团队和专家组, 构建基于BCW理论的运动恐惧干预方案并实施。两组患者均干预3个月。干预后比较两组患者的运动恐惧水平、焦虑抑郁水平以及运动自我效能水平的差异性。结果 经过干预后, 出院当天、出院后1 个月、出院后3 个月干预组患者的心脏病患者运动恐惧量表(TSK-SV Heart)得分、广泛性焦虑障碍(GAD)-7量表和患者健康问卷抑郁症状群量表(PHQ-9)得分均低于对照组, 差异有统计学意义(P＜0. 05)。经过干预后, 出院当天、出院后1 个月、出院后3 个月干预组患者的运动自我效能感量表(SEE)得分均高于对照组, 差异有统计学意义(P＜0. 05)。结论 基于BCW理论设计的急性心肌梗死PCI术后患者运动恐惧干预方案, 内容翔实, 体系科学, 实用性强, 为临床实践提供了有益的指导。此干预方案不仅能够降低患者运动恐惧水平, 缓解焦虑和抑郁等负面情绪, 还能增强患者的运动自我效能, 进而改善患者术后生活质量。)

[Objective] With global warming and increased occurrences of heavy precipitation, the frequency of landslide mudflow disasters in the Pisha sandstone area will increase significantly. Understanding how water-soil interaction affect the loosening and deformation of fragile soils, ultimately leading to mudflow development, is a crucial scientific question in the evolutionary process. [Methods] This study focuses on investigating the rheological properties of Pisha sandstone (PS) slurry using a rheological method that involves dynamic oscillatory shear. The primary objective is to examine the liquefaction process and initial rheological properties of PS slurry. [Results] (1) With the increase of shear strain, the energy storage modulus (G′) and loss modulus (G″) of the four PS slurries decreased and exhibited strain thinning characteristics. (2) In the samples with lower water content (w

为考察不同产地文冠果种仁黄酮类成分的差异，以山东潍坊的60份和辽宁大连的58份文冠果种仁为原料，采用LC-MS/MS法检测其黄酮类成分及含量，并对两地文冠果种仁黄酮类成分含量的差异进行了对比分析。结果表明：118份文冠果种仁中均检测出5种黄酮类成分，其中芦丁含量为1.422~40.704 μg/g，表没食子儿茶素含量为2.513~6.406 μg/g，没食子儿茶素没食子酸酯含量为1.994~4.574 μg/g，二氢槲皮素含量为1.102~4.452 μg/g，没食子儿茶素含量为0.806~4.057 μg/g；两地文冠果种仁黄酮类成分含量大小依次为芦丁>表没食子儿茶素>没食子儿茶素没食子酸酯>二氢槲皮素>没食子儿茶素；山东潍坊不同样树种仁中黄酮类成分总含量介于10518~25.445 μg/g之间，样树WF927的黄酮类成分总含量最高；辽宁大连不同样树种仁中黄酮类成分的总含量介于8.347~52.087 μg/g之间，样树DL392的黄酮类成分总含量最高；两地文冠果种仁黄酮类成分含量间差异显著，其中辽宁大连文冠果种仁中黄酮类成分总含量平均值（19491 μg/g）极显著高于山东潍坊的（16.320 μg/g）;两地118份文冠果种仁中，黄酮类成分总含量最高的为DL392（52.087 μg/g）、DL395（43.711 μg/g）和DL347（40.481 μg/g）。 In order to investigate the changes of flavonoids in Xanthoceras sorbifolium Bunge kernels from different origins, 60 samples from Weifang, Shandong province and 58 samples from Dalian, Liaoning province were used as raw materials, and the flavonoids composition and contents were detected by LC-MS/MS method, and the differences of flavonoids content from two origins were compared and analyzed. The results showed that 5 kinds of flavonoids were detected in 118 Xanthoceras sorbifolium Bunge kernels, among which the content of rutin was 1.422-40.704 μg/g, the content of epigallocatechin was 2.513-6.406 μg/g, the content of gallocatechingallate was 1.994-4.574 μg/g, the content of dihydroquercetin was 1.102-4.452 μg/g, and the content of gallocatechin was 0.806-4.057 μg/g. Rutin content was the highest, followed by epigallocatechin, gallocatechingallate, dihydroquercetin and gallocatechin. The total flavonoids content of kernels from Weifang, Shandong province was between 10518 μg/g and 25.445 μg/g, and the total flavonoids content of WF927 was the highest, the total flavonoids content of kernels from Dalian, Liaoning province was between 8.347 μg/g and 52.087 μg/g, and the total flavonoids content of DL392 was the highest. The content of flavonoids was significantly different between two origins. The average total flavonoids content in Xanthoceras sorbifolum Bunge kernel from Dalian, Liaoning province (19.491 μg/g) was significantly higher than that from Weifang, Shandong province(16.320 μg/g). 118 Xanthoceras sorbifolium Bunge kernel from two origins had the highest total content of flavonoids in DL392 (52.087 μg/g), DL395 (43.711 μg/g) and DL347 (40481 μg/g).

FeCoNiAlCrx(x=0, 0.2, 0.4, 0.6, 0.8, atomic ratio) high-entropy alloy ingots were prepared by vacuum arc melting method, and the effect of Cr content on the microstructure and mechanical properties of the alloy was investigated. The phase structure, microstructure and the composition of the alloy were analyzed and characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).The compression properties of the alloy were tested by universal testing machine. The results show that with the increase of Cr content, the microstructure of the alloy changes from a single-phase BCC structure to a BCC+FCC mixed structure; the microstructure of the alloy gradually changes from an equiaxed structure to a dendrite structure, and the grain size of the alloy is obviously refined. The five alloys prepared in this experiment have relatively good mechanical properties, and the compressive strength of the alloy increases greatly with the increase of Cr content. When x=0, the compressive strength and plastic strain of the alloy are the lowest, which are 1500 MPa and 13.56%, respectively; when x=0.8, the compressive strength and plastic strain of the alloy reach the maximum, which are 2460 MPa and 30.09%, respectively; the compressive strength of the alloy increases by 64%. It indicates that Cr addition plays an important role in the microstructure refinement, the improvement of compressive strength and ductility of FeCoNiAlCrx high-entropy alloys.

An important milestone in human cognition of severe diseases began with a refined understanding of the hemodynamics of shock. After decades of development, the concept of hemodynamic therapy has become more perfect. The treatment of shock involves not only guided group therapy, but also bedside individualized strategies. The leading effect of blood flow has long been well understood, and the oxygen flux in the blood flow is the target index of hemodynamic resuscitation of shock. In this paper, we aim to further explore blood flow and blood oxygen flux, separate the influence factors of blood flow and oxygen flux, monitoring and recovery-guided treatment, and propose four subtypes based on blood flow and oxygen flux shock, with the hope of ushering in an era of more precise hemodynamic treatment for organ hemodynamic therapy.

Neurocritical care is an important branch of critical care medicine. The mechanism of critical neurological damage is complex and diverse, and the pathophysiology changes rapidly. Different pathophysiological changes determine different degrees of brain injury. In a special plateau environment, the incidence of critical neurological disease is higher, the age of onset is younger, the disease progress is faster, and the degree of damage is more severe. In order to standardize the diagnosis and treatment, enhance monitoring and management, provide timely and precise treatment, prevent irreversible brain injury, and improve the prognosis of patients with critical neurological illness at high altitudes, the Research Group of Calm Treatment of China, Research Group of Critical Care Ultrasound of China, and the Quality Control Center of Critical Care Medicine in Tibet formulated the Expert Consensus on Monitoring and Management of Patients with Critical Neurological Illness at High Altitudes on the basis of full discussion and communication of relevant critical medical experts and neurosurgery experts according to domestic and foreign literature and years of experience in clinical application and promotion. The main contents of the consensus are as follows.(1) According to the pathophysiological mechanism of neurological involvement in critical illness, scenarios of neurocritical care at high altitudes can be divided into cerebral hemorrhage at high altitudes, severe traumatic brain injuries, ischemic stroke, cerebral edema at high altitudes, and septic encephalopathy (8.4 points).(2) It is recommended to use cerebral blood flow, brain function monitoring and cerebral oxygen saturation as a 'triad' monitoring core in management of neurocritical care at high altitude, to as well as cerebrospinal fluid dynamics monitoring and brain structure surveillance (9.0 points).(3) It is recommended to grade patients quickly, and the '5-avoids' approach based on 'brain protection' theory were adhered to avoid fever, seizures, anxiety, agitation or pain, shivering, stimulation and nociception, according to different levels. Especially in the 'super critical' stage, with the protection of '446'targets, choose the window for analgesia and sedation (8.4 points).(4) It is recommended to monitor systemic and cerebral hemodynamic continuously and dynamically in order to improve systemic perfusion and optimize cerebral perfusion simultaneously (8.4 points).(5) It is recommended to choose the method of direct measurement of intracranial pressure by intraventricular catheter or optic nerve sheath diameter under ultrasound to estimate intracranial pressure, and choose the appropriate target mean arterial pressure to ensure optimal brain perfusion (8.8 points).(6) It is recommended to use transcranial Doppler ultrasound to evaluate the blood flow velocity and blood flow waveform of the bilateral cerebral arteries. It is recommended to target the blood flow velocity of M1 at 40 cm/s in the 'super critical' period (8.2 points).(7) In the 'super critical' period, we recommend to routinely monitor BIS and maintain the BIS value around 40 as the goal to guide the depth of sedation; those with conditions can be monitored by quantitative electroencephalography to assist determining whether there are non-convulsive seizures, and perform diagnostic evaluation of the prognosis (8.6 points).(8) It is recommended to monitor brain oxygen levels routinely, starting early in the ICU admission of patients with critical neurological conditions at high altitudes, which can assist in the assessment of brain damage (8.6 points).(9) It is recommended to evaluate the cerebral blood flow self-regulation ability routinely to achieve the optimal cerebral perfusion pressure in time and timely adjust the intensity and scheme of treatment (8.2 points).(10) It is recommended to emphasize the importance of target arterial partial pressure of carbon dioxide in the artery in critical illness and neurocritical care at high altitudes (8.0 points).(11) It is recommended to devote attention to the importance of targeted temperature management in in critical illness and neurocritical care at high altitudes (8.6 points).(12) It is recommended that multidisciplinary consultation and multi-professional cooperation could improve the management in critical neurological illness at high altitudes (8.8 points).(13) It is recommended that the constitution of improvement in brain structure imaging, pressure normalization of cerebrospinal fluid and restoration of cerebral blood autoregulation could be as the de-escalation triad (8.0 points).(14) It is recommended to be cautious of paroxysmal sympathetic hyperreactivity patients in neurocritical and critical illness at high altitude (8.0 points).(15) It is recommended to be cautious about the management of agitation (delirium) and cognitive function of patients in TBI at high altitudes(8.0 points).(16) It is recommended to assess the itinerary of the rehabilitation in a timely manner for critically sick patients at high altitudes (8.2 points).(17) It is recommended to be cautious of post-traumatic hydrocephalus and related neuroendocrine abnormalities in patients with critical neurological illness at high altitudes (7.6 points).

Effect of curing characteristics matching of blending polyurethane rubber(MPU) and nitrile rubber(NBR) on properties of MPU/NBR blends was investigated. The results showed that the MPU phase was heat treated at 130 ℃ before the blending process to shorten the vulcanization induction period and made the curing characteristics similar to NBR. The interphase segregation of MPU and NBR could be effectively reduced, and the degree of vulcanization could be increased. The physical and mechanical properties of MPU/NBR blends were improved. When the heat treatment time was 8 min, the tensile strength of MPU/NBR blend increased by 37%, and the heat-resistant oil aging property was significantly improved.

The transfer and transformation of scientific and technological achievements, often referred to as "transfer and transformation", is crucial for turning science and technology into productive forces and economic development. It plays a significant role in enhancing the operational efficiency of the science and technology innovation system and developing new forms of productive forces. Currently, China's policies to facilitate transfer and transformation are becoming richer and more comprehensive. Nevertheless, issues such as the difficulty in integrating industry, academia, research, and application, low efficiency and rate of technology transformation, and insufficient professionalism in intellectual property operation and transfer and transformation services still have not been adequately addressed. A primary reason is that the profit distribution model for transfer and transformation personnel does not effectively match their job attributes and contributions, leading to a lack of full engagement and motivation among these professionals. This study begins with an analysis of the issues in the existing profit distribution models, investigates the profit distribution of transfer and transformation at 15 institutes of Chinese Academy of Sciences (CAS), compares the differences and similarities between successful international cases and those of the CAS, examines the academic and practical reasons behind the unreasonable profit distribution models, and offers recommendations to provide new insights for enhancing the quality and efficiency of transfer and transformation efforts. [ABSTRACT FROM AUTHOR]

Objective To differentiate urine derived pluripotent stem cells (iPSCs) into hair follicle stem cells (HFSCs) to construct a skin substitutes. Methods Human urinary cells isolated from a healthy donor were re-programmed into iPSCs. iPSCs were then induced into iPS-HFSCs. Immunocytochemistry and RT-qPCR were used to examine the characteristics of the induced iPS-HFSCs. Results The iPSCs induced from urine cells have characteristics as embryonic stem cells. iPSCs derived cells displayed the morphology, genes expression and phenotypes similar to iPS-HFSCs. Conclusions The urine cells are successfully reprogramed into iPSCs by four transcription factors, and iPSCs derived cells show characteristics similar to HFSCs.

Objective To investigate the population genetic data of 47 autosomal insertion/deletion （InDel） polymorphism genetic markers involved in AGCU InDel 50 kit in Guangdong Han, Guangxi Zhuang, Guangxi Yao, Guangxi Jing, and Guangxi Mulam, and to evaluate their application in forensic DNA identification. Methods Multiplex amplification of the 768 unrelated individuals from the 5 ethnic groups mentioned above was performed with the AGCU InDel 50 kit. Genotyping was carried out by 3500xL gene analyzer, population genetic parameters were gathered and polymorphism analysis was performed. Results No linkage disequilibrium was found among 47 autosomal InDel loci in the 5 ethnic groups. The distribution of genotype frequency of 47 autosomal InDel loci confirmed to the Hardy-Weinberg equilibrium in Guangdong Han and Guangxi Zhuang. Except for rs139934789, the other 46 loci confirmed to the Hardy-Weinberg equilibrium in Guangxi Yao, Guangxi Jing, and Guangxi Mulam. The results of genetic variation analysis among the populations showed that 1.12% of genetic variation was caused by ethnic group differences. The cumulative discrimination power of 47 autosomal InDel loci for the 5 ethnic groups were all above 0.999 999 999 999 999. The cumulative probability of exclusion for each ethnic group was less than 0.999 9. The two Y-InDels were identified in all male individuals and were absent in all female individuals. Conclusion Except for rs139934789, the other 46 InDel loci have a relatively good genetic polymorphism in the 5 Chinese ethnic groups, and can be used for forensic individual identification and as effective supplements for paternity testing.

Mulberry is a perennial deciduous woody plant, and its leaves are homologous food of medicine and food, which have been widely used in feed industry in recent years. After fermentation, the content of anti-nutritional factors such as cellulose and tannin in mulberry leaves is reduced, and the content of crude protein, crude fat, amino acids, and minerals is abundant, which has the effect of improving feed conversion rate and animal product quality. The paper mainly introduces the contents of conventional nutrients, amino acids, vitamins, and minerals in mulberry leaves, the commonly used strains for fermentation, and the changes of nutrients, anti-nutritional factors and bioactive substances in mulberry leaves after fermentation. The effects of fermented mulberry leaves on growth performance, meat quality, and intestinal health of pigs, ruminants, poultry and fish were summarized. The future research direction of mulberry in the field of feed industry was prospected, in order to provide a reference for the efficient utilization of mulberry in animal production. [ABSTRACT FROM AUTHOR]

The output power of the PV system varies with changes in the external environment, if the control of photovoltaic array is always working at the maximum power point, will improve the efficiency of photovoltaic power generation.In the traditional single MPPT algorithm, the dynamic and steady state of the system can not be satisfied at the same time. Therefore, a combination algorithm of hill climbing method and variable universe fuzzy control algorithm is proposed,through MATLAB/Simulink simulation analysis, we compare the output power of the photovoltaic cell with the method of mountain climbing, fuzzy control, variable universe fuzzy control and combination algorithm. The simulation results show that the proposed algorithm can rapidly and stably track the maximum power point.

A full reference model was proposed to evaluate the perceptual quality of audiovisual asynchrony.A standard synchronization process was used to determine the time difference between audio and video.The mapping between the time difference and the perceptual quality was derived by co-inertia analysis.The co-inertia analysis extracted the most related component from audio and video features,and then formed a mapping for each audiovisual sequence.Audiovisual contents were divided into three categories:clean speech,non speech and mixed speech.The clean speech category was further split into two subcategories.Audio and video features were chosen separately for each category.Subjective test results showed that the proposed model conforms well with subjective results.

Objective To study the clinical features and chemotherapy response of Burkitt's lymphoma (BL) in children and the influence of rituximab on the prognosis of children with BL. Methods A retrospective analysis was performed for the medical data of 62 children with BL, including clinical features, therapeutic efficacy, and prognostic factors. The Cox regression model was used to identify the factors associated with poor prognosis in children with BL. According to whether rituximab was used, the children with advanced (stage III/IV) BL were divided into two groups: chemotherapy plus rituximab and chemotherapy alone. The prognosis was compared between the two groups. Results For these 62 children, the median age of onset was 5 years (range 1-14 years), and there were 58 boys (94%) and 4 girls (6%). The primary site was abdominal cavity in 41 children (66%), and head and neck in 16 children (26%). There were 1 child with stage I BL (2%), 8 with stage II BL (13%), 33 with stage III BL (53%), and 20 with stage IV BL (32%). The median follow-up time was 29 months, with progression/recurrence observed in 15 children (24%), and the 3-year overall survival (OS) rate and event-free survival (EFS) rate were 82.8%±5.2% and 77.3%±5.8%, respectively. For the children with stage III/IV BL, there was a significant difference in the 3-year the OS rate between the chemotherapy plus rituximab group (16 children) and the chemotherapy alone group (30 children) (93.3%±6.4% vs 65.6%±9.9%, P=0.042), while there was no significant difference in the 3-year EFS rate between the two groups (86.2%±9.1% vs 61.8%±10.1%, P>0.05). The Cox regression analysis showed that central nervous system involvement, lactate dehydrogenase >1 000 U/L, and early incomplete remission were the factors associated with poor prognosis (P<0.05). Conclusions Chemotherapy combined with rituximab can improve the prognosis of children with stage III/IV BL. Central nervous system involvement, elevated lactate dehydrogenase level, and early incomplete remission may indicate a poor prognosis in children with BL. [ABSTRACT FROM AUTHOR]

To reduce the residues of volatile organic compounds (VOCs) in the inner liner for cigarette, the VOC contents in the raw materials (base paper, transfer film, coloring glue) were analyzed based on a single-factor experiment and orthogonal tests to determine the main sources of VOC residues in the inner liner. The relationships between the plate roller parameters, drying temperature and combination machine running speed during the inner liner production with the VOC residue levels were investigated to determine the optimal technical parameters. The results showed that: 1) Coloring glue was the main source of VOCs in the inner liner. 2) The VOC residues were reduced and the printing effect was improved when the net line amount of plate roller was 70 line/cm with the depth of 45 pm and the amount of coloring glue was about 5.0 g/m². 3) At the drying temperature of (100±5) °C and the running speed of (60±5) m/min, the VOC residue level was 6.69 mg/m², which was 44.7% lower than that before the parameter optimization. This method provides a useful support for promoting the smoking quality of cigarette products. [ABSTRACT FROM AUTHOR]

Objective: To explore the effects of miR-206 on the proliferation and invasion of ER-α36-positive gastric cancer (GC) BGC-823 cells induced by estrogen and its related mechanisms. Methods: ER- α36-positive BGC-823 cells were stimulated with estradiol (E2) at different concentrations (1, 10 and 100 pmol/L), then, the expression level of miR-206 was detected by qPCR, the proliferation and invasion were respectively determined by MTT and Transwell assays, and the expression of cyclin-dependent kinase 14 (CDK14) protein was detected by WB. After transfecting miR-206 mimic, miR-NC, pcDNA-CDK14 or pcDNA-vector into ER-α36 positive BGC-823 cells and stimulating them with 100 pmol/L E2, the proliferation and invasion ability of the cells were respectively detected by MTT assay and Transwell assays, and the expression of CDK14 was detected by WB assay. The targeting relationship between miR-206 and CDK14 was verified by Dual luciferase reporter gene assay. Results: E2 significantly decreased the expression level of miR-206 (P<0.05 or P<0.01), enhanced the proliferation and invasion (P<0.05 or P<0.01), and up-regulated the expression level of CDK14 (P<0.01) in ER-α36-positive BGC-823 cells. Overexpression of miR-206 could significantly reduce the proliferation and invasion ability of ER-α36-positive BGC-823 cells induced by E2 (all P<0.01). miR-206 negatively regulated the expression of CDK14 by directly binding to the 3'-UTR of CDK14 mRNA, thereby inhibiting the proliferation and invasion of ER- α -positive BGC-823 cells (all P<0.01). Conclusion: miR-206 inhibits the proliferation and invasion of estrogen-induced ER- α36-positive GC cells by targeting CDK14. [ABSTRACT FROM AUTHOR]

Nanbeigou intrusion is located in the northern margin of Qaidam massif, and the outcrop area is 4.5 km2. The intrusion is emplaced into amphibole plagiogneiss from Paleoproterozoic Dakendaban Group and amphibolite from Mcsoprotcrozoic. It consists of pale gabbro, gabbro, melagabbro. They extend mainly gradual transition, and part shows intrusive contact. Rock alteration is strong, most of pyroxenes alter to amphibole, and part shows biotitization and chloritization; plagioclase shows saussurilization at different levels. Chemical composition of major element belongs to tholeiitic series. The rocks relatively enrich in large ion lithophile element (LILE), deplete in high field strength element (HFSE), and obviously deplete in Nb and Ta. The primary magma of intrusion is high Mg tholeiitic (mass fraction of MgO is 11.1%), and is developed by the middle-upper crustal assimilation contamination in a certain extent during the magma evolution. The intrusion, which forms in ancient island are environment, is the product of Qaitlam massif subduction to Qilian massif in Early Paleozoic. According lo the degree of mngmntic differentiation, characteristics of primary«Bnu and assimilation it in comprehensively concluded thai Nanbeigou intrusion has Rood metallogenelic potentiality of Cu-Ni sulfide deposit. [ABSTRACT FROM AUTHOR]

Excellent talent cultivation for transportation specialty in colleges and universities provided an opportunity for the reform of engineering education. The cultivating mode of transportation specialty excellent talent in Nantong University is researched and practiced by the connotation construction of discipline, the reform and innovation of talent cultivating mode, the construction of transportation industry resources e-learning platform, the exploitation of high quality experimental projects and the enhancement of social service ability in order to improve the quality of personnel training. Practice indicates that the excellent talent cultivation of transportation specialty in Nantong University has gained initial effect. This paper can offer reference for the excellent talent cultivation for transportation specialty in other colleges and universities. [ABSTRACT FROM AUTHOR]

Objective To evaluate the diagnostic value of magnetoencephalography (MEG) in localizing the seizure focus and in predicting outcome to surgical resections of insular lobe epilepsy. Methods Eight patients who had been diagnosed as refractory insular lobe epilepsy in Xuanwu Hospital were selected. All patients had pre-urgical work-ps, including MRI, video EEG (VEEG) and MEG to localize epileptogenic area, and 4 of them had been implanted intracranial electrodes to identify epileptogenic zone and underwent operation under the monitoring of electrocorticography (ECoG). They were followed up after surgery to evaluate the prognosis, and further to evaluate the diagnostic value of MEG on insular lobe epilepsy. Results Eight patients had surgeries under the guide of preoperative MEG examination. Five of them had been localized in insular or anterior insular lobe and 3 of them had been localized around the insular lesion by MEG. According to postoperative Engel classification, 6 was I, one was II, and one was IV. Conclusions MEG provides useful localizing information and predicts surgical outcome of insular lobe epilepsy. [ABSTRACT FROM AUTHOR]

Objective To explore the practicable value of elastic curved bone drill unit performing percutaneous vcrtcbroplasty in calf osteoporotic vertebral model, and to observe its effect on the distribution of bone cement. Methods The calf osteoporotic vertebral model was established using EDTA-Na2 immersion method. Forty osteoporotic vertebrae were randomly divided into 2 groups; group A and group B. Each group had 20 vertebrae for vcrtcbroplasty. Vertebrae in group A underwent routine straight bone drill puncture, while vertebrae in group B underwent puncture using self made elastic curved bone drill unit. The puncture arc direction was toward the other side, with the depth of the first 1/3 termination of the vertebral body. Whether the puncture bone drill and bone cement achieved or crossed over the sagittal midline in two groups was analyzed. Results After 9-day immersion and decalcification with EDTA-Na2, the osteoporotic vertebral model was successfully established in vitro. In group A, the drill bit reached or crossed over vertebral sagittal midline in 7 vertebral bodies, and the bone cement distributed beyond the vertebral sagittal midline in 11 vertebral bodies. In group B, the drill bit reached or crossed over vertebral sagittal midline in 18 vertebral bodies, and the bone cement distributed beyond the vertebral sagittal midline in 19 vertebral bodies. The effect of drilling and distribution of bone cement between the 2 groups had statistical significance (P < 0.05). Nine vertebral bodies in group A had intraspinal bone cement leakage, while 4 had in group B, and no significant difference between group A and B was observed (P>0.05). Conclusion The self made elastic curved bone drill unit can build an osseous channel that reaches or beyond the vertebral sagittal midline through only one side transpedicular puncture, then guiding bone cement to distribute to the other lateral pedicle, which can avoid the disadvantage of bilateral pedicle puncture. [ABSTRACT FROM AUTHOR]

The mechanical efficiency of a diesel engine is of great importance as an indicator to evaluate the mechanical loss. It also has a significant impact on economic performance and dynamic performance for the diesel engine. Many scholars have done a lot of work on the measurement of the mechanical efficiency of the multi-cylinder engine. In addition to the numerical calculation with computers, the traditional measurement method of mechanical efficiency common used by scholars can be summarized into four types as follows: an indicated diagram based on one cylinder pressure data, power measured under a motoring condition, the fuel cut method, and a fuel consumption characteristic curve. For the non-uniformity on the structure, intake airflows, fuel injection, and combustion process on the multi-cylinder engine, some errors, without considering the difference of indicated work between different cylinders on the condition of different engine speeds and loads, can be seen for the traditional measurement method of mechanical efficiency based on the pressure data of one cylinder. In this paper, the research object for mechanical efficiency chosen was a V-type turbocharged diesel engine with eight-cylinders. The pressure data of all cylinders was measured at different engine speeds and loads respectively by using the instantaneous pressure sensor of KISTLER and the combustion analyzer of DEWETRON. All cylinder pressure data was measured at the speeds of 1100?1300?1500? 1700?1900?and 2100 r/min with relevant loads while the diesel engine was working in the steady state. To ensure the accuracy of the measurements, the pressure data were collected once each 1 crank angle. In each case, the combustion analyzer would average the cylinder pressure data that was collected continuously over 50 cycles. Then the indicated work of all cylinders and the total indicated power for the engine would be obtained by computing the average cylinder pressure data which can largely eliminate the effects of any cycle by cycle variation. Furthermore, the non-uniformity of performed work of the engine was analyzed on the basis of all of the cylinders' indicated work. Meanwhile, the mechanical efficiency and its fluctuation rules under different speeds and different loads could be obtained with the effective power tested by the eddy current dynamometer. It can be concluded that the indicated work of different cylinders at the same case is largely different from each other, which means the non-uniformity of the performed work of the engine changed significantly. Based on the analysis of the data, it can be induced that the non-uniformity of the performed work of the engine was reduced with effective power increasing. The application of the full cylinder pressure measurement and the calculation method of mechanical efficiency can avoid measurement errors caused by the non-uniformity of the engine and improve the accuracy of the results. At the same speed, the mechanical efficiency of an engine increases as the power increases, which can be curved as a cubic polynomial relationship between the two factors. In the case where the power remains constant, the mechanical efficiency of the diesel engine increases as the speed decreases, which can be curved as an approximate linear relationship between the factors. [ABSTRACT FROM AUTHOR]

In order to solve the problem that the proactive refreshment of secret shares and public verifiability could not be satisfied simultaneously in previous multi-secret sharing schemes, this paper proposed a publicly verifiable and renewable multi-secret sharing scheme. It constructed the updated polynomials by a one-way hash chain, which could make secret shares be updated periodically, and generated the verification information during the process of secret distribution. According to the public information, anyone could verify the validity of secret shares and renewed shares. Cheating of dealer and participants could be detected in time. Under the assumptions of elliptic curve discrete logarithm problem (ECDLP) and computational Diffie-Hellman problem (CDLP), this scheme can effectively resist internal and external attacks and has better security. [ABSTRACT FROM AUTHOR]

In order to solve the defect of conversion efficiency between XBRL financial reports, by establishing a unified domain ontology of financial reports, and building the mappings between the domain ontology and taxonomies, this paper performed semantic annotation of XBRL taxonomies, so as to enhance conversion efficiency. Finally, it gave an example of domestic XBRL application to verify the conversion model. The results show that the method is suitable for XBRL financial reports conversion and conversion efficiency would be further enhanced with industry extension of Chinese taxonomy in future. [ABSTRACT FROM AUTHOR]

The effect of fuel temperature on diesel engine performance is studied by the way of experiments on an electronic unit pump turbocharged diesel engine, so as to provide the basis of revision for the control of electric system parameters. The experimental results indicate that the injecting pressure of diesel engine and injected fuel mass can linearly reduce, along with the increase of the fuel temperature. At the same time, the max combustion pressure linearly reduces, main combustion period in the cylinder can linearly increase. At last, the effective power and exhaust temperature and intake pressure can linearly reduce. The effective rate of fuel consumption can linearly increase. [ABSTRACT FROM AUTHOR]

PF-PRD non-solid-phase drilling fluid is a new type of weak gel drilling fluid system, whose formation of weak gel has low shear rate and high viscosity. Even at high temperatures, it also shows characteristics of excellent suspension, lubrication and inhibition ability; and low dehydration and thin filter mass make it easy to clean and can alleviate damage. Other excellent features include resistance to temperature, salinity, shear force and strong ability to adapt to the environment. In this paper, we incorporated laboratory study and field application of PF-PRD non-solid-phase drilling fluid system in three horizontal wells WC13-1-A6, WC13-1-A8 and WC13-1-A3 in the Wenchang 13-1 oilfield of southwestern China. The results show that PF-PRD solid free drilling fluid system adapt to Wenchang 13-1 oilfield geological structure, and has good prospect of application and extension. [ABSTRACT FROM AUTHOR]

A thermodynamic model of a V-type turbocharged multi-cylinder diesel engine was established and calibrated by its experimental data. Then, the non-uniformity of intake air flow on ring-type intake pipe and Il-type intake pipe was respectively investigated depending on this model. The computed results indicated that various intake structures came into being various pressure fluctuation rule of the intake air flow in front of the valves. Furthermore) the variety of pressure difference between the intake air and in-cylinder air was generated which is the main reason of largely different degree of intake air non-uniformity. The conclusion is that the non-uniformity of intake air flow of engine could be reduced by using ring-type intake pipe [ABSTRACT FROM AUTHOR]

A one-dimensional performance simulation model of a V-type turbocharged eight-cylinder diesel engine was established and calibrated by experiment and test. Then, the differences of intake non-uniformity among three types of pipes, pulse charging exhaust pipe, constant pressure charging exhaust pipe and MPC exhaust pipe, were calculated and analyzed with the use of this calibrated model. The computed results indicate that different exhaust pipe structures lead to great difference of intake non-uniformity. The intake non-uniformity of constant pressure charging exhaust pipe is close to that of MPC exhaust pipe. But the non-uniformity of the pulse charging exhaust pipe is much smaller than both of above. [ABSTRACT FROM AUTHOR]

In order to investigate the effects of soil water stress on morphology and physiological characteristics of soybean, three different drought - resistant soybean varieties ( Hefeng25, Heinong44 and Jindou21 ) were selected for pot experiment. Moderate and severe soil water stress were applied from beginning of pod formation to seed filling stage. Morphological characteristics, chlorophyll content, photosynthetic rate, SOD activity, POD activity, CAT activity were examined. The results of drought resistance of tested cuhivars were shown as : Jindou21 > Heinong44 > Hefeng25. Jindoti21 of the most resistant rootstocks demonstrated the powerful growth advantage under soil water stress. Many indices of Jindou21 were higher than Heinong44 and Hefeng25, including plant height, pods number per plant, grain number per plant, grain weight per plant, chlorophyll content, Pn ( photosynthetic rate) and POD activity. But GS (stomatal conductance) and Tr (transpiration rate) of Jindou21 were higher than Heinong44 and Hefeng25, their decrease were significantly higher than Heinong44 and Hefeng25 under severe soil water stress. Jindou21 had higher water use efficiency. These morphological characteristics and physiological index could be used to evaluate drought resistance of soybean. [ABSTRACT FROM AUTHOR]

In the latter 20th century, there occurred three oil crises in the world, which inflicts a great impact on the world economy. From 2002 until now, oil price is soaring up, and the 4th oil crisis is rementioned. By a rational judgment of the conditions for oil crisis, it is proposed that the current conditions can not lead to oil crisis, but people should be well-prepared forit. On the basis of the precautions adopted by Japan and America, it is put forward that China should borrow foreign countries' experience and adopt some corresponding measures to meet the challenge of the oil crisis. [ABSTRACT FROM AUTHOR]

The rules of variation of exhaust gas pressure for turbocharged multi-cylinder diesel engines are studied. Gas pressure at the exhaust port and cylinder pressure of the first cylinder are measured synchronously in the exhaust stroke under various operating conditions using instantaneous pressure sensor and the combustion analyzer on a V-type turbocharged eight-cylinder diesel engine. The measured results indicated that the rule of variation of exhaust gas pressure were similar under the same engine speed. Along with increased loads, the fluctuant range of exhaust gas pressure increased. Under different engine speeds, the phase of wave crest and wave trough in the exhaust pressure curve postponed backwards along with increasing engine speed. Under some operating conditions, pressures in the cylinder are higher than gas pressures in the exhaust port on the exhaust period. Under some other operating conditions, pressures in the cylinder are smaller than gas pressures in the exhaust port. [ABSTRACT FROM AUTHOR]

Sidetrack with cement plug is a drilling technology that dills a new wellbore after placement of cement plug in the origi-nal open hole. Due to unfavorable oil indications of the reservoir encountered by ø215.9 mm wellbore, a horizontal development well located in Wenchang Oilifeld was sidetracked after placing cement plug in the openhole. In order to overcome such dififculties such as large depth of sidetrack point, high formation strength, large heaving of semi-submersible drilling platform, etc., this sidetracking opera-tion was successfully completed by using short gage PDC bit with strong side attacking ability and rotating steering tool Power Drive to dill the sidetrack hole, using sliding groove, creating steps and controlled drilling to control the well trajectory, and using cuttings logging and near bit inclination to monitor the realtime sidetracking job. The successful execution of this sidetracking job, the smooth well trajectory and the successful runing of subsequent sand-control screens, provide useful references for the sidetracking operations for horizontal open hole from semi-submersible drilling platform in the future. [ABSTRACT FROM AUTHOR]

In order to study the strength and life features of MK97-002 type plow bit under different planning depths, a solid model simulation method of the plow bit cutting coal seam process was presented. A solid model of the plow bit was established by using a flexible body material, a constitutive model of coal seam was constructed according to meshless smooth particle dynamics SPH theory, isotropic hardening theory and association flow rule, stress changes and its statistical data of the joint between blade and carbide head were obtained through planning process simulation in three planning depths of the weak joint. The fatigue life of the plow bit was predicted with a fatigue accumulating damage model built by improvement of rain-flow, linear Miner. The simulated results show that the stress of the plow bit increases with its planning depth increases, the strength is close to the allowable value and the margin is very small; the plow bit's cumulative damage grows, effective working time reduces, fatigue life downs and damage aggravates as planning depth increases; these conclusions accord with practice. [ABSTRACT FROM AUTHOR]

The output of ho-wires is related to fluctuation velocities, and is closely related to fluid temperature and density when a hot-wire technology is used to measure turbulence intensity in compressible fluid. Therefore, ho-wire probes should be accurately calibrated before being used in a calibration facility, which has similar characteristics as those in high speed compressible fluid. In this paper, a calibration method for ho-wire probes in compressible flow is proposed, and a mathematical model of hot-wires for calibrations and measurements is established. Calibration experiments of ho-wire probes are conducted, and an experiment of turbulence intensity measurements is carried out in a wind tunnel with self-building ho-wire calibration. The result indicates that, the calibration method is feasible, and the mathematical model is reasonable and reliable. The calibration accuracy for hot-wire probes is high, and the results of turbulence intensity measurements are credible. The engineering requirements for hot-wire probe measurements in compressible flow are basically satisfied. [ABSTRACT FROM AUTHOR]

This paper aims to study the spectrum-effect relationship between the fingerprints before and after salt processing of Dipsacus asper and the efficacy of warming and tonifying kidney Yang and find the main active components against kidney Yang deficiency before and after salt processing of D. asper, so as to provide the basis for clarifying the effect of salt processing on kidney Yang deficiency. The HPLC fingerprint before and after salt processing of D. asper was established by the HPLC-DAD. 15 common peaks were obtained, and 11 components were identified. The content changes of various components in rat serum were detected, and the difference in efficacy before and after salt processing was compared. The results of pharmacological experiments showed that salt processing of D. asper could enhance the kidney index. At the same dose, there was a significant difference between the raw D. asper and D. asper after salt processing groups. Compared with the model group, the contents of ACTH, cAMP, CORT, E&#95;2, GH, Na~+-K~+-ATPase, T, and T4 in the serum of rats in the administration group increased to a certain extent, and the contents of cGMP and TNF-α decreased to a certain extent. Among them, there were significant differences in the above indexes in the serum of rats in the high-dose group of raw D. asper, middle-dose group of D. asper after salt processing, high-dose group of D. asper after salt processing, and the positive drug group. The overall results showed that D. asper after salt processing was more effective than raw D. asper in preventing kidney yang deficiency. The efficacy of D. asper was evaluated by grey correlation analysis, entropy method, and Pearson correlation analysis, and the components of D. asper after salt processing against kidney yang deficiency were screened out. According to the results of correlation degree ranking, the components with increased ranking before and after salt processing of D. asper were loganin, chlorogenic acid, dipsacoside A, asperosaponin Ⅵ, caffeic acid, and isochlorogenic acid B. It was preliminarily speculated that these compounds may be the potential pharmacodynamic components for the treatment of kidney yang deficiency before and after salt processing of D. asper. The changing components before and after the salt processing of D. asper were determined, which proved that D. asper after salt processing was superior to D. asper in the treatment of kidney yang deficiency. The spectrum-effect relationship between the efficacy of D. asper before and after salt processing and the treatment of kidney yang deficiency was established, which laid a foundation for the subsequent study on the pharmacodynamic components and molecular mechanism of salt processing of D. asper.