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This study presented a new bulging-pressing compound-forming process to solve the manufacturing problem of a thinwall specimen with a small round corner radius. Its key process parameters were the pre-forming depth, pre-forming concave round corner, and matching relation between the liquid bulging pressure and the backpressure punch velocity in the final forming process. The pre-forming depth determines the material reserves of the small round corner area in final forming. The best pre-forming concave round corner is the minimum punch corner in hydro-mechanical deep drawing. The calculating methods for the pre-forming depth and the pre-forming concave round corner were provided by a theoretical analysis. The mechanical model of the bulging-pressing compound forming process was built. Moreover, the deformation situation in the round corner area with different matching relations between the liquid bulging pressure and the backpressure punch velocity was provided by the stress state analysis. Meanwhile, the influences of the pre-forming depth and the matching relation between the liquid bulging pressure and the backpressure in final forming on the quality of the part were researched based on the finite element simulations and experiments. The accuracy of the theoretical analysis was verified. In addition, the applicability of the new process was proven.

The identification of key areas for ecological restoration of national land space based on the ecological security pattern is an important way to balance environmental protection and social development in the new era. With the Taihu Lake city cluster as the study area, we identified the ecological source from both structural and functional aspects, and used the minimum cumulative resistance model to identify the ecological corridors on the basis of constructing the resistance surface. Coupled the landscape ecological risk evaluation, we determined the appropriate width of each ecological corridor in the study area, identified the key restoration zones through the circuit theory. Then, we constructed the ecological security pattern of "six zones and four belts" and controlled by zoning. The results showed that the 32 ecological source areas in the Taihu Lake city cluster presented a spatial pattern of "more in the east and less in the west-mountains and lakes are connected" and 70 ecological corridors were concentrated in the west and the center. The suitable width of most of the ecological corridors was 1500-2000 m. The ecological restoration zones of the national land space were concentrated in the eastern part of the Lake Taihu, Changxing County, and Liyang City. According to the characteristics of the study area and the actual situation of the restoration area, we proposed specific protection and restoration measures, such as protecting the core ecological source, optimizing and restoring the important corridors, and reasonably planning land use of the ecological pinch points and obstacle points. [ABSTRACT FROM AUTHOR]

Background and objective Xuanwei and Fuyuan are rural counties, located in the late Permian coal poly area of eastern Yunnan and western Guizhou, where lung cancer mortality rates are among the highest in the China, with similarity for both men and women, younger age at diagnosis and death, and higher in rural areas than in urban areas. In this paper, long-term follow-up of lung cancer cases in local peasants was conducted to observe their survival prognosis and its influencing factors. Methods Data of patients diagnosed with lung cancer from January 2005 to June 2011, who had lived in Xuanwei and Fuyuan counties for many years, were collected from 20 hospitals at the local provincial, municipal and county levels. To estimate survival outcomes, individuals were followed up until the end of 2021. The 5-year, 10-year and 15-year survival rates were estimated using the Kaplan-Meier method. Survival differences were examined with Kaplan-Meier curves and Cox proportional hazards models. Results A total of 3,017 cases were effectively followed up (2,537 peasants and 480 non-peasants). The median age at diagnosis was 57 years, and the median follow-up time was 122 months. During the follow-up period, 2,493 cases (82.6%) died. The distribution of cases by clinical stage was as follows: stage I (3.7%), stage II (6.7%), stage III (15.8%), stage IV (21.1%) and unknown stage (52.7%). Treatment at the provincial, municipal and county-level hospitals accounted for 32.5%, 22.2% and 45.3%, respectively, and surgical treatment was performed in 23.3% of cases. The median survival time was 15.4 months (95%CI: 13.9-16.1), and the 5-year, 10-year and 15-year overall survival rates were 19.5% (95%CI: 18.0%-21.1%), 7.7% (95%CI: 6.5%-8.8%) and 2.0% (95%CI: 0.8%-3.9%), respectively. Peasants with lung cancer had a lower median age at diagnosis, higher proportion residing in remote rural areas, and higher use of bituminous coal as a household fuel. They also have a lower proportion of early-stage cases, treatment at provincial or municipal hospitals, and surgical treatment, leading to poorer survival outcomes (HR=1.57). Even when considering factors such as gender, age, residential location, clinical stage at diagnosis, histological type, hospital level of service, and surgical intervention, peasants still exhibit a survival disadvantage. Multivariable Cox model analysis comparing peasants and non-peasants reveals that surgical intervention, tumor-node-metastasis (TNM) stage, and hospital level of service are common factors influencing survival prognosis, while the use of bituminous coal as a household fuel, hospital level of service and adenocarcinoma (compared to squamous cell carcinoma) are independent prognostic factors for lung cancer survival among peasants. Conclusion The lower lung cancer survival rate among peasants is associated with their lower socioeconomic status, lower proportion of early-stage diagnoses, lower proportion of surgical interventions, and treatment at provincial-level hospitals. Furthermore, the impact of other factors such as high-risk exposure to bituminous coal pollution on survival prognosis requires further investigation. [ABSTRACT FROM AUTHOR]

The population structure, regeneration ways and spatial relationships of six relict deciduous broadleaved trees were examined based on community investigation on Mount Tianmu, East China. The results showed that relict deciduous broadleaved trees had a strong ability of vegetative reproduction and their population structure was generally belonged to intermittent type. Some relict species such as Cyclocarya paliurus and Liquidamb aracalycina regenerated discontinuously at appropriate sites via long distance diffusion. Some species such as Emmenoptery henryi and Euptelea pleiospermum regenerated discontinuously around mature trees due to habitat limitation and frequent disturbance. After occupying forest gaps by seedling regeneration, C. paliurus, L. acalycina, Nyssasinensis and Liquidambar formosana could recruit and form multi stemmed individuals by their inherent sprouting ability at relatively stable sites such as crest slope and side slope. At riverbed, valley slope and head hollow, recognized as unstable habitats, Emmenopterys henryi, E. pleiospermum, and L. formosana could also recruit by strong sprouting ability due to sparse seedlings and individual loss incurred by disturbance. Therefore, the relict deciduous broadleaved trees could be classified into two ecological species groups (repairment species for forest gap and supplement species for special habitat) based on spatial distribution and strategy of regeneration and competition. We suggested that the protection of special habitats of their communities should be strengthened. [ABSTRACT FROM AUTHOR]

By using tomato as material potted in climatic chamber, the photosynthetic characteristics and allocation of energy and electron flow were studied under sub-low temperature (8-15°C) and drought (55%-65% of field moisture capacity) conditions. The results showed that the photosynthetic pigment content declined under sub-low temperature stress, but increased under drought stress. Both sub-low temperature stress and drought stress significantly decreased the intercellular CO2 concentration, stomatal conductance and photosynthetic rate, and increased the stomatal limitation, which further decreased or increased under simultaneous treatment of sub-low temperature and drought stress. The photorespiration significantly increased under separate treatment of sub-low temperature and drought stress, but decreased under simultaneous treatment. The stress declined the Fo, Fv/Fm and Fv'/Fm', which showed the damage of photosystem. It increased the distribution of energy to PS II and declined the photochemical efficiency, total electron flow and alternating electron flow. Thermal dissipation and the ratio of alternating electron flow were elevated to dissipate the excess energy. Compared with separate treatment of sub-low temperature and drought stress, the simultaneous treatment made thermal dissipation higher, but did not make alternating electrons flow further increase. [ABSTRACT FROM AUTHOR]

Based on spot investigation,problems in the development of industrial clusters are revealed such as unclear cluster attributes,low value-added products,weak capability of technological innovation,incomplete industrial chains,and low-level cooperation in cluster and extensive management. A detailed analysis is given on the service status of industrial clusters' management and consultation,which points out that the current management cannot satisfy the development of industrial clusters,so the service contents and modes should be improved. Taking the center-satellite mode of industrial clusters in Taiwan as reference, strategies of management innovation services are promoted including specifying the purpose of management innovative services of industrial clusters,clarifying the six functions of management innovative services,doing more research on the key techniques in collaborative management,establishing dynamic alliance organizations and new business models based on the management innovative service platform,and providing the conditions needed for normal operation in management innovative services. [ABSTRACT FROM AUTHOR]

From the perspective of internal marketing, this paper chose university faculty and graduate students as the research subjects, put forward two components of internal relationship quality at universities with reference to the concept of external relationship marketing, established a structural equation model of relationship quality perception, feelings of organizations and jobs as well as employees' behavior disposition, and then tested it empirically. The research findings indicate that universities could boost their teachers' job performance by improving the quality of internal relationship, thus enhancing the satisfaction of its clients such as students, parents, employers, governments and cooperators. [ABSTRACT FROM AUTHOR]

The article focuses on the study which aims to identify potent antiviral shRNAs against classical swine fever virus (CSFV) by developing a fluorescent reporter assay.

The article discusses the development of the automatic image annotation for image retrieval based on semantic learning. It highlights the three categories of the research techniques for different learning including machine learning, image semantic understanding and information retrieval. It also details the new research directions in automatic image annotation and predicts it future.

PURPOSE: To design an excel form which can prompt dental implant patient appointment through color change, which can scientifically manage implant EMR library through appropriate interlinkage and number. METHODS: An excel form based on operating system Windows XP was designed and software 2003 Microsoft excel was used, which was configured to change color with the passage of time by the use of command "conditional format". RESULTS: An excel form was designed. The color turned to red automatically on the day the patient underwent implant surgery. It turned to yellow when the patient recalled 2 weeks after the first operation, to green when the patient underwent secondary operation. It was designed to be gray when all the procedures of implant restoration was finished. In addition, we could know patients' main implant situation through directly opening his EMR when clicking on his name or number. CONCLUSIONS: Dentists can remind the implant patient appointment schedule through color change of an excel form, and can consult the implant patient EMR directly through interlinkage or number. [ABSTRACT FROM AUTHOR]

Metaphor is a natural phenomenon of the universal language. In the process of affective computing, the feelings of some sentences are aroused by the metaphor. Therefore, sentimental metaphor will affect the outcome of affective computing. Based on the theory of metaphor, from the perspective of machine learning, dominant metaphor identification .of Chinese text is studied. The difference of areas between target domain and source domain is regarded as breakthrough point. Firstly, target domain and source domain are got using part of speech tagging and the interdependence parsing analysis; then, areas classifying and word similarity calculation are given? lastly, support vector machine is used so as to identify metaphor of sentence. This study will play a certain role in the automatic identification of metaphor.and metaphorical understanding. [ABSTRACT FROM AUTHOR]

PURPOSE: To investigate the feasibility of the pin-hole marker measurement of the irregular silicone dental impression accuracy. METHODS: The metal model simulating abutment preparations had triangle-formed circular needles on the surface. Two silicone impressions were made by the metal model with the corresponding pin-hole markers. The dimensional change of the markers was evaluated by stereomicroscope. The records were output by the software which could simulate the centre of a circle to measure the displacement and dimensional accuracy. RESULTS: The outline of pin-hole marker was clear and shape was stable. Values of center coordinates were repeated well. The percentage of linear dimensional change of two impression samples was 0.023% and 0.042% at 48h respectively. Between two abutment preparations, the percentage of linear dimensional change of Zhermeek silicone impression increased 0.214%(45.1µm) at 1h and decreased 0.019%(4.0µm) at 48h while 3M silicone impression increased 0.087%(18.2µm) at 1h and decreased 0.09%(18.8µm) at 48h. CONCLUSION: The pin-hole marker measurement of the irregular silicone impression accuracy was feasible. [ABSTRACT FROM AUTHOR]

There are two ways of philosophy development, one is the way of popularization, and the other is that of professionalization. They are the reflections in epistemology of specific character of things and general character of things. Some philosophers explain their philosophical theories from the perspective of the specific character of things while the others general character of things. Either way is one-sided. Hence forms the developmental processes and laws of affirmation, negation, and negation of negation in the Western philosophy. [ABSTRACT FROM AUTHOR]

In OFDM system, a bit and power allocation method based on bit -preloading is proposed in order to achieve a result with minimum Bit Rate Error (BER) under the constraint of total transmission power and data rate within a shorter calculation time. It is proved that the bit-loading result of Minimum Total Virtual Power (MTVP) is the same as that of minimizing BER. Then an iteration method aiming at the MTVP is proposed, in which the preload of bit according to BER threshold is used to decrease the iteration times. The simulation shows that the proposed bit and power allocation method based on preload approaches the optimal solution as well as computes efficiently. [ABSTRACT FROM AUTHOR]

Women are the blind spots in China history of two thousand years, which makes "history" as a relative huge political concept for women. Thus, "history" or "historical narrative" is a writing topic for women to choose after they gain writing power which is significant for the modem Chinese women's writing. There are three stages to develop in the 20th Century for Chinese women writing: from the recognition of "female national writing" to look at the history of revolutionary writing, and a broken and critical historical narrative in the 1990s to emphasize the building of the main type. [ABSTRACT FROM AUTHOR]

To improve the accuracy in scene categorization of satellite images, this paper presents an algorithm of feature selection based on augmented LDA (Latent Dirichlet Allocation) model, and the algorithm is improved, which can automatically selects features from the features-pool. This method firstly extracts five kinds of features (SIFT, Geometric Blur, LBP, Gabor and Color histogram) from each image, and during the cross-validation, the combined features, which have the best performance over the dataset are got. Next, the dimensionality of the combined features is reduced by using LDA. Finally the regularized logistic regression classifier are employed to achieve the classification. Compared with other feature combination, the experimental results demonstrate that, the combination of the automatically selected features can improve the accuracy of scene categorization of satellite images effectively. [ABSTRACT FROM AUTHOR]

PURPOSE: To measure and evaluate the acceptability of shade mismatch of infiltrated alumina ceramic crowns directly in clinic. METHODS: Ten cases with restoration of hot casting alumina ceramic crown were collected in clinic. L*, a*, b*, C, H, ΔE values of hot casting alumina ceramic crowns and corresponding natural teeth in natural light were surveyed and calculated, then analyzed with CIE1976L,*a*b* color system, digital photography and Photoshop CS2. All statistical analyses anti calculations were completed in paired t test with SAS6.12 software package. RESULTS: In cervical 1/3 region, significant statistical difference in lightness, a*, hue angle parameter value between alumina all - ceramic crown and natural tooth (P<0.01) was found; in middle 113 region, significant difference in a*, b*, saturation parameter value (P<0.01) existed; in incisory 1/3 region, the parameters had no significant difference (P>0.05). To parameter Δ E, there was significant difference in every region, but it was in the acceptable range. CONCLUSIONS: The acceptability of shade mismatch is about 6 ΔE units, we can analyse the color difference between the restoration and natural teeth directly in clinic through symmetry of central incisor. [ABSTRACT FROM AUTHOR]

This research aims to study the archival values of electronic records by trying to identify appraisal criteria and construct an appraisal model. The Delphi method is adopted in this research. The results show that social factors, archival institutes and producers of electronic records play important roles in appraising archival values of electronic records. Particularly, the information that electronic records provide is a crucial factor to appraise archival values of electronic records. However, computer systems and the documentation related to the management of electronic records are not major factors in archival appraisal of electronic records. [ABSTRACT FROM AUTHOR]

By the method of canopy film-covering to reduce UV-B radiation, this paper studied the responses of the morphology and photosynthetic physiology of Nicotiana tabacum cultivar K326 at its physiological, technical, and physiological-technical transitional maturity stages in high -elevation tobacco-growing area of Yunnan. Three treatments were installed, i.e., reducing 75.74% (T1), 70.08% (T2), and 30.39% (T3) of natural solar UV-B radiation. Reducing UV-B radiation increased the stem height and the internode distance of K326 significantly, with the larger values in T2. Comparing with those under natural UV-B radiation condition, the leaf net photosynthetic rate (Pn), assimilation capacity (AC), water use efficiency (WUE), intrinsic water use efficiency (WUEi), photosynthetic pigments (PP) and flavonoids (FL) contents, and specific leaf mass (SLM) in T1 and T2 all decreased, with larger decrement in T2. The factors affecting the Pn in T1 and T2 were stomatal and non-stomatal, and the latter was the main one. The major reason of the lower WUE in T1 and T2 was due to the increase of transpiration rate (Tr) caused by low stomatal regulation capability. In T3, the Pn, AC, WUE, WUEi, and PP increased but the FL and PP decreased to the lowest levels at physiological and transitional maturity stages, and the PP degradation rate was faster at the technical maturity stage. [ABSTRACT FROM AUTHOR]

Background and objective The relapse-free time of gefitinib as the second or third line therapy in patients with advanced non-small cell lung cancer (NSCLC) was not satisfactory. The aim of this study is to evaluate the efficacy and toxicity of pemetrexed in patients with pulmonary adenocarcinoma after failure to chemotherapy and gefitinib. Methods A total of 32 relapsed patients with pulmonary adenocarcinoma after failure to chemotherapy and gefitinib received pemetrexed 500 mg/m² by the intravenous administration on the first day, with 21 days as a cycle. Dexamethasone, folic acid and vitamin B12 were applied to relieve the drug toxicity. The objective response rate was estimated by Response Evaluation Criteria in Solid Tumors (RECIST) and the toxicity was estimated by National Cancer Institute Common Toxicity Criteria (version 3.0). Results For a total of 32 patients, 4 patients reached partial response (PR), constituting a total of 12.5%; 11 patients reached stable disease (SD), constituting a total of 34.4%; 17 patients reached progressive disease (PD), constituting a total of 53.1%. The median progression free survival (PFS) was 2.7 months. The median overall survival (OS) was 11.0 months. One-year survival rate was 37.5%. The most common adverse events (AEs) were myelosuppression with grade I and grade II toxicity. Other adverse events were tolerated. Conclusion Pemetrexed was clinically beneficial for the patients with pulmonary adenocarcinoma after the failure of chemotherapy and gefitinib. [ABSTRACT FROM AUTHOR]

Transitional justice originally referred to how to deal with past human rights violations in countries which were experiencing transitions from non-democratic to democratic systems. After the Cold War and the upheaval in East Europe, this concept was further used to refer to how to cope with past atrocities in the aftermath of wars or conflicts. In recent years, some developed countries' governments take many reparation programs such as apologies and compensations to comfort the groups which were historically discriminated and repressed by dominating groups. These activities are also called transitional justice. The United Nations and the international community have devised various mechanisms of transitional justice, including prosecutions, reparations, truth-seeking, institutional reforms, vetting and so on. In a word, transitional justice is a response to systematic or widespread violations of human rights. Transitional justice might not be understood as an ontological and special idea of justice, but a methodology to reconcile ideal justice and real politics. Moreover, what transitional justice emphasizes is neither an absolute justice idea nor a coherent justice model. [ABSTRACT FROM AUTHOR]

The finite element analysis method was applied to the simulation of quenching process of a cylindrical specimen of 9Cr18Mo steel. The cooling curve of quenching process, the variation curve of residual stress with the time, the distribution of residual stress along the axial dimension and the axial deformation of the specimen were obtained. It is found that the stress state in the specimen during quenching is complicated due to the thermal stress and the structure stress. In the end of the process, the stress state mainly relies on the structure stress. The calculated results of residual stress on the surface and the axial deformation of the specimen agree well with experimental results. [ABSTRACT FROM AUTHOR]

To study the influence of different opaque thickness on the bond strength of porcelain-fused-to metal(PFM) restorations. METHODS: The testing sheets were made as the samples of ISO9693. With different sintering temperature and different opaque thickness on the bond strength of PFM restorations, the primary pressure of porcelain crack was measured by using three-points-bending test. Statistical analysis was carried out using a SPSS 10.0 software package. A post hoc multiple comparison test(Student-Newman-Keuls) was performed to evaluate the differences between the individual groups. RESULTS: In low sintering temperature group, the thin layer of opaque significantly improved the bond strength compared with thick layer of opaque(P<0.05). In high sintering temperature group, the thickness of opaque has no significant influence on the PFM bonding strength. Using the opaque, the bonding strength was better than those without opaque. CONCLUSION: The thickness of opaque has a little influence on the PFM bonding strength. [ABSTRACT FROM AUTHOR]

A model was set up according to the actual historical timber building with a scale of 1/3.52 of the prototype structure whose mortise -- tenon joints had been consolidated or not. The shaking table experiments were carried out. The dynamic characteristics and the change rules of frequency and damping ratio were tested, and seismic responses of the model were obtained. By comparing and analyzing the characteristics, it is shown that the stiffness change of the strengthened mortise -- tenon joint model is consistent with the primary model on the whole while the stiffness is increased little. At the same time, the energy dissipation depends on the yield plastic deformation of the armor plate instead of the structure collapse with mortise -- tenon. The consolidation scheme is proved to be a useful method for repairing and reinforcing the historical timber buildings. [ABSTRACT FROM AUTHOR]

The polymorphism of hemoglobin (Hb), serum albumin (Alb), trandferring (Tf) and adenosin deaminase (Ada) in the blood of Emberiza elegans, Phylloscopus inornatus, E. aureola, Lanius tigrinus, Passer montanus, and E. spodocephala in Zhalong National Nature Reserve were studied by SDS-polyacrylamide-gel electrophoresis. All the protein loci of the six Passeriformes species exhibited polymorphism, and Ada locus had a relatively high heterozygosity. The analysis of average heterozygosity demonstrated that P. inornatus had a higher population genetic variance, while E. spodocephala was relatively stable. The six species could be classified into two clusters. E. elegans, E. aureola, E. spodocephala and P. inornatus were clustered into one group, while P. montanus and L. tigrinus were clustered into another group. This clustering was consistent with the actual taxonomic status of the six species. The higher thermoregulation index and predation pressure of the study area did not lead to the substantial variation of hereditary constitution of the six species, possibly due to the gene intercommunion between the six species and the outside of the study area, which decreased the variance and differentiation of the population genetics of the six species. [ABSTRACT FROM AUTHOR]