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Objectives: When performing plantation surveys using laser point cloud data, there are missing points in the scanned point cloud data due to the occlusion and self-occlusion of trees during laser scanning, the felling of trees and other reasons. So, the locations of the missing trees are inaccurate, and the forest survey results have large errors. The key to solving this problem is to realize the filling of the missing tree point cloud. Methods: This paper defines a concept named degree-of-collinearity, and constructs a method based on degree-of-collinearity combined with straight line detection to fill in missing data. Results: For the experimental results of simulated data, the average accuracy of the proposed algorithm is 97.28%; for the experimental results of plantation data, the proposed algorithm detects the location of 9 missing trees, and the degree-of-collinearity rises from 0.219 3 to 0.270 5. Conclusions: The experimental results show that this method can realize the optimal inference of missing location, strengthen the collinear relationship of filled data and can also be applied to count the missing trees in the artificial forest. [ABSTRACT FROM AUTHOR]

Objective: To compare the clinical effects of laparoscopic cholecystectomy and open laparotomy cholecystectomy on postoperative intestinal adhesion, and to compare the effectiveness and safety of the two procedures. Methods: 196 patients with cholecystectomy in our hospital were retrospectively chosen. According to the operative procedure, they were divided into two groups: open laparotomy group and abdominal cavity group, and 98 cases in each group. The operative indexes and postoperative intestinal adhesion of the two groups were compared, and the changes of quality of life of patients with gastrointestinal tract before and after surgery were observed. Results: The laparoscopic operation time (123.57± 4.65 min) was longer than that in the open laparotomy group, bleeding during operation (27.52± 5.69 mL), recovery of gastrointestinal function time(18.03± 3.51 h), postoperative hospital stay (4.51± 1.03) and intestinal adhesion rate (10.20%) were less than the open laparotomy group, (P<0.05). The GLQI scores of the two groups before surgery were similar (P>0.05), and the postoperative GLQI score was significantly higher than that of the preoperative group (P<0.05), and the GLQI score of laparoscopic group was significantly higher than that of open laparotomy group (P<0.05). Conclusion: Compared with open laparotomy surgery, laparoscopic cholecystectomy not only has the advantages of small operative trauma, short postoperative recovery time, but also low incidence of postoperative intestinal adhesion, and it is worthy of promotion. [ABSTRACT FROM AUTHOR]

Objective To explore the role of ZFP36 in cardiomyocyte injury and autophagy induced by hypoxia/reoxygenation (H/R) so as to clarify its molecular regulatory mechanism. Methods H9C2 rat cardiomyocytes were infected with ZFP36 overexpressing lentivirus (OE-ZFP36) or its negative control lentivirus (OE-ZFP36 NC) to construct stable cell lines, respectively. Transfection of ATG4D overexpression plasmid (OE-ATG4D) improved the expression of ATG4D. Hypoxia/reoxygenation (H/R) induced myocardial cell injury. H9C2 cells were mainly divided into control group, H/R group, OE-ZFP36 NC+H/R group, OE-ZFP36+H/R group, OE-ATG4D NC+H/R group, OE-ATG4D+H/R group, OE-ZFP36+OE-ATG4D NC+H/R group, and OE-ZFP36+OE-ATG4D+H/R group. The protein expressions of ATG4D, Beclin1, LC3 and ZFP36 in H9C2 cells were detected by Western blotting. The mRNA levels of ZFP36 and ATG4D in H9C2 cells were detected by Real-time fluorescence quantitative PCR (qPCR) . The viability of H9C2 cells was detected by CCK-8 assay. The levels of interleukin (IL-6) and tumor necrosis factor (TNF-α) in H9C2 cells were detected by enzyme-linked immunosorbent assay (ELISA) . Reactive oxygen species (ROS) in H9C2 cells were detected by DCFH-DA method. SOD detection kit was used to detect the SOD level in H9C2 cells. The apoptosis of H9C2 cells was detected by flow cytometry. LC3 autophagosomes in H9C2 cells were detected by cellular immunofluorescence. Dual-luciferase reporter gene assay was used to detect the binding of ZFP36 and ATG4D mRNA in H9C2 cells. Results Compared with control group, H/R group showed decreased cell viability, increased IL-6 and TNF-α levels, increased ROS levels and decreased SOD levels, increased cell apoptosis. Up-regulated ATG4D and Beclin1 protein expression, increased LC3Ⅱ/LC3Ⅰ ratio, as well as upregulated ZFP36 expression were found in H/R group (all P<0.05) . Compared with OE-ZFP36 NC+H/R group, elevated cell viability, decreased IL-6 and TNF-α levels, decreased ROS levels and increased SOD levels, reduced cell apoptosis (P<0.05), and downregulated ATG4D and Beclin1 protein expression, decreased LC3Ⅱ/LC3Ⅰ ratio were shown in OE-ZFP36+H/R group (all P<0.05) . Compared with infection with OE-ZFP36 NC lentivirus, infection with OE-ZFP36 lentivirus decreased the luciferase activity of ATG4D 3'-UTR reporter gene, decreased the stability of ATG4D mRNA, and downregulated the H/R-induced ATG4D mRNA expression (all P<0.05) . Compared with OE-ATG4D NC+H/R group, OE-ATG4D+H/R group had upregulated ATG4D mRNA and protein expression, decreased cell viability, increased IL-6 and TNF-α levels, increased ROS levels, decreased SOD levels and elevated cell apoptosis (all P<0.05) . Compared with OE-ZFP36+OE-ATG4D NC+H/R group, OE-ZFP36+OE-ATG4D+H/R group had decreased cell viability, increased IL-6 and TNF-α levels, increased ROS levels, decreased SOD levels and elevated cell apoptosis (all P<0.05) . Conclusion The expression of ZFP36 is upregulated in H/R-induced cardiomyocyte injury. The overexpression of ZFP36 inhibits H/R-induced cardiomyocyte injury and autophagy by regulating ATG4D, thus resisting cardiomyocyte H/R injury. It proves that ZFP36 is an important regulatory molecule against MI/RI. [ABSTRACT FROM AUTHOR]

The soil profile in Shizijie Town,which is located on the Yalu River alluvial plain,was studied.The vertical distribution characteristics and the leaching migration characteristics of the major elements in the profile were systematically analyzed. Meanwhile,the soil-forming environment in that area was analyzed with the silicic acid coefficient,the Si-Al-Fe ratio and the Ca-Mg ratio. It was found that the vertical distribution of all major elements in the soil profile presented an approximately same trend with the soil properties. The surface of Layer A and the 13 cm of Layer B were compacted from the soil surface and the plough respectively. Layer C,the soil parent material,was made up of slope washes with more cracks. The soil-forming process of Layer D,the buried soil,was similar to the modern soil of Layer A,Layer B and Layer C. The elements of Mn,Ca and K were leached,while Fe and Al were enriched in both Layer A and Layer B. The elements of Mg were migrated in Layer A,while rich in Layer B. The major elements in Layer D,the buried soil,were enriched,indicating that the soil-formation process has basically stopped. The three characteristic parameters of the major elements indicated that the oxidation degree increased gradually,the weathering became stronger gradually,the climatic condition got wet year by year from the bottom to the top of the soil profile. The dominant factor of chemical weathering during the soil-formation process was temperature,not humidity in the studied profile. [ABSTRACT FROM AUTHOR]

【Objective】Through the research on the wind speed in Yili area, the present paper revealed the changing law, provided scientific basis and data support for the improvement of local ecological environment, rational development and utilization of energy, industrial and agricultural production.【Method】The characteristics of regression, periodicity and mutation were analyzed by linear fitting, wavelet analysis and Mann-Kendall method in the past 56 years of daily wind speed data were measured by 8 ground meteorological stations in Yili, Xinjiang. 【Result】(i) During the period from 1961 to 2016, the average wind speed in Yili area showed a decreasing trend with a rate of change of-0.171 m/(s·a). The spring wind speed decreased the most obviously in the four seasons, and the decline rate was also the largest-0.196. m/(s·a), while the trend of decreasing wind speed in winter was the least obvious.(ii)The long-term change of wind speed also had certain abrupt change, and the annual average wind speed had obvious mutation points around 1979.(iii)The results of Morlet wavelet analysis showed that there were two oscillation periods in the annual average wind speed, which was the most significant in the 18 years oscillation period. The four seasons oscillation period was basically consistent with the annual wind speed oscillation period, but there were differences.(iv) From the perspective of spatial distribution, the wind speed in Yili area decreased from northwest to east and westward, and the wind speed tendency rate decreased. The Nilek decrease was the most significant[-0.273 m/(s·a)].【Conclusion】The trend of wind speed in Yili was basically consistent with that of the whole country, but its rate of decrease was higher than that of the whole country. [ABSTRACT FROM AUTHOR]

Aiming at the problem that the multi-channel transient signal is difficult to be measured and compared accurately at the same time in the impact performance test,the impact rigidity measurement station was used as the test platform,and the automobile door parts were used as the test objects. The pressure,displacement and acceleration sensor were selected. The virtual instrument platform and the highspeed data acquisition card synchronously collect the multi-impact impact signal. The virtual instrument software was developed to collect the shock signal,and the measurement signal was subjected to anti-interference filtering. The data search algorithm was designed to obtain the impact sign. The signal time domain truncated positioning shock point was carried on. The theoretical impact displacement was calculated. The impact displacement,the impact force and the acceleration of the multi-channel transient signal fast capture was achieved. The location of the impact point and the peak point was achieved. The comparison between actual displacement of the impact and theoretical displacement was achieved. The results indicate that the method can accurately measure the impact time,determine the corresponding impact force,displacement and acceleration parameters,and realize the comparison and screening of the impact performance of the door parts. [ABSTRACT FROM AUTHOR]

Objective: To investigate the effect of sufentanil combined with docetaxel on inflammatory factors and early cognitive function in patients undergoing laparoscopic resection of gastric cancer.Methods: 84 patients with gastric cancer admitted to our hospital from April 2015 to March 2016 were divided into the observation group And the control group.Patients in the control group were treated with sufentanil and patients in the observation group were treated with sufentanil combined with docetaxel.The visual analogue scale (VAS), changes of inflammatory factors before and after operation, and the postoperative cognitive function Scores were compared between the two groups.Results: The VAS of both groups was decreased as 6,12,24 and 48 h after operation, and the VAS of observation group was lower than that of the control group at 6,12,24 and 48 h after operation (P <0.05) .At 7 days after operation, the levels of IL-6 and TNF- [α] in the observation group were significantly lower than those of the c (60.43 ± 1.32) was significantly higher than that of the control group (66.54 ± 1.56), and the number of patients was significantly higher than that of the control group (66.54 ± 1.56) (P <0.05) .There was no statistically significant difference in the incidence of adverse reactions between two groups [14.29% (6/42) vs 19.05% (8/42)] (P> 0.05) .Conclusion: Laparoscopic resection of gastric Cancer patients with sufentanil combined with dezocine after analgesia could relieve the postoperative pain, adjust the level of inflammatory factors after surgery, improve the slight public dysfunction and and have less harmful reactions. [ABSTRACT FROM AUTHOR]

Objective: To analyze the postoperative complications and influence factors of patients with intrahepatic biliary calculi after partial hepatectomy. Methods: 117 cases of patients with intrahepatic biliary calculi in our hospital were selected and all went through partial hepatectomy. The clinical data were retrospectively analyzed, and the occurrence of postoperative complications studied, and the influence factors analyzed. Among the 117 patients, the incidence of complications was 35.04%, including 1 cases of liver failure, 2 cases of biliary tract bleeding, 6 cases of gastrointestinal bleeding, 6 cases of abdominal infection, 6 cases of biliary fistula, 8 cases of pleural effusion, 12 cases of incision infection. Significant differences existed among preoperative albumin level, operation time and biliary tract surgery history between the complication group and non-complication group (P<0.05). The multivariate Logistic regression analysis of postoperative complications of partial hepatectomy showed that the operation time and the history of biliary tract surgery were independent risk factors for complications. Conclusion: Partial hepatectomy for patients with intrahepatic biliary calculi has a high incidence of postoperative complications, with incision infection and pleural effusion are the most common ones. The history of previous surgery and operation time are important risk factors of complications. Targeted precautions can prevent the occurrence of complications. [ABSTRACT FROM AUTHOR]

Objective: To analyze the postoperative complications and influence factors of patients with intrahepatic biliary calculi after partial hepatectomy. Methods: 117 cases of patients with intrahepatic biliary calculi in our hospital were selected and all went through partial hepatectomy. The clinical data were retrospectively analyzed, and the occurrence of postoperative complications studied, and the influence factors analyzed. Results: Among the 117 patients, the incidence of complications was 35.04%, including 1 cases of liver failure, 2 cases of biliary tract bleeding, 6 cases of gastrointestinal bleeding, 6 cases of abdominal infection, 6 cases of biliary fistula, 8 cases of pleural effusion, 12 cases of incision infection. Significant differences existed among preoperative albumin level, operation time and biliary tract surgery history between the complication group and non-complication group (P<0.05). The multivariate Logistic regression analysis of postoperative complications of partial hepatectomy showed that the operation time and the history of biliary tract surgery were independent risk factors for complications. Conclusion: Partial hepatectomy for patients with intrahepatic biliary calculi has a high incidence of postoperative complications, with incision infection and pleural effusion are the most common ones. The history of previous surgery and operation time are important risk factors of complications. Targeted precautions can prevent the occurrence of complications. [ABSTRACT FROM AUTHOR]