期刊文献+
共找到14篇文章
< 1 >
每页显示 20 50 100
破坏果树案现场砍切痕迹的应用 被引量:3
1
作者 刘安省 《刑事技术》 北大核心 1997年第6期12-12,共1页
果树为多年生木本植物,木质较软,砍切痕迹表面光滑,特征明显而稳定,用斧头、菜刀、砍刀类的刃器工具砍切果树干或技,由于刃器刀面上的豁口、卷刃、小断裂等,沿刀砍方向在工具两侧的枝、干断面形成特征相称或相反的凸凹线条特征.但此类... 果树为多年生木本植物,木质较软,砍切痕迹表面光滑,特征明显而稳定,用斧头、菜刀、砍刀类的刃器工具砍切果树干或技,由于刃器刀面上的豁口、卷刃、小断裂等,沿刀砍方向在工具两侧的枝、干断面形成特征相称或相反的凸凹线条特征.但此类案件中被砍树木往往较多,使前后的痕迹变化较大,且发案至断头的检验有一过程,大量水份被蒸发,断头会枯缩,导致痕迹特征有一定变化.根据作者办案实践总结出应用中有以下几点经验. 展开更多
关键词 砍切痕迹 线条痕迹 痕迹特征 犯罪嫌疑 树枝干 多年生木本植物 坏果 比对检验 现场痕迹 凹线条
下载PDF
浅谈毁坏果树现场工具痕迹的利用 被引量:1
2
作者 李昭敏 《刑事技术》 北大核心 1999年第3期36-37,共2页
近几年来,我县毁、盗果树案件时有发生,并呈上升趋势.由于果树一般都位于远离村庄的山沟小岔里,案发后不易马上被发现,造成不能及时勘查现场,再加上事主不注意保护现场,破坏了现场物证的利用条件.为此,需要充分利用毁坏果树现场被破坏... 近几年来,我县毁、盗果树案件时有发生,并呈上升趋势.由于果树一般都位于远离村庄的山沟小岔里,案发后不易马上被发现,造成不能及时勘查现场,再加上事主不注意保护现场,破坏了现场物证的利用条件.为此,需要充分利用毁坏果树现场被破坏的痕迹,做好现场分析,确定正确侦查方向,为及时破案提供可靠依据.笔者几年来通过对果树案件现场的勘查,就几类果树案件现场做一简要分析:1 锯毁果树案现场此类现场在毁坏果树案件中占的比例最大.作案分子一般都是以破坏为目的,用锯将果树的树干或树主枝锯断,至使果树不能存活,以达到其破坏的目的.1.1 分析锯的种类及快。 展开更多
关键词 工具痕迹 形态特征 案件现场 现场勘查 坏果 作案工具 青龙满族自治县 作案人 现场分析
下载PDF
计算机视觉技术在芒果重量及果面坏损检测中的应用 被引量:38
3
作者 王江枫 罗锡文 +1 位作者 洪添胜 戈振扬 《农业工程学报》 EI CAS CSCD 北大核心 1998年第4期186-189,共4页
探讨了应用计算机视觉技术进行芒果重量及果面坏损检测的方法,分析了确定所需图像区域的算法,建立了芒果重量与其投影图像的相互关系。实验证明,这一方法对桂香芒、紫花芒检测的果重分级准确率分别达96%、92%,果面坏损分级准... 探讨了应用计算机视觉技术进行芒果重量及果面坏损检测的方法,分析了确定所需图像区域的算法,建立了芒果重量与其投影图像的相互关系。实验证明,这一方法对桂香芒、紫花芒检测的果重分级准确率分别达96%、92%,果面坏损分级准确率分别为76%、80%。 展开更多
关键词 分级 计算机视觉 重量
下载PDF
Bx—2电子保鲜机对砀山水果半地下通风窖贮藏保鲜酥梨苹果的影响 被引量:6
4
作者 姚自鸣 冯克伟 《安徽农业科学》 CAS 1995年第1期85-88,共4页
应用Bx—2电子保鲜机产生O3负离子气,对砀山半地下通风窖保鲜水果进行果实果窖和贮藏器具处理,有效地抑制和杀死真菌和细菌,抑制呼吸强度和水果体内的原果胶转化以及乙烯、乙醇、乙醇的产生,同时强氧化分解贮藏环境中的催熟有... 应用Bx—2电子保鲜机产生O3负离子气,对砀山半地下通风窖保鲜水果进行果实果窖和贮藏器具处理,有效地抑制和杀死真菌和细菌,抑制呼吸强度和水果体内的原果胶转化以及乙烯、乙醇、乙醇的产生,同时强氧化分解贮藏环境中的催熟有害气体,起到无毒无害、无污染,营养保存较好的防腐保鲜作用。9月中旬入窖水果,贮藏期从148天到208天,果实的烂坏及自身损耗维持在3%,比对照减耗12%,电子保鲜机在水果半地下通风窖贮藏水果的应用,使产地水果保鲜技术日臻完善。 展开更多
关键词 保鲜 电子保鲜机 坏果 酥梨
下载PDF
冬季怎样贮存苹果和梨
5
《山东农机化》 1996年第11期29-29,共1页
苹果和梨采收后,经过妥善贮存,到来年春天水果淡季食用或出售,既能调剂市场余缺,又能增加收入。现介绍一种冷屋(不住人,不进烟火的冷屋子)贮存苹果、梨的方法。 一、入贮前,果子要经过挑选,剔除坏果,库房打扫干净,地面洒水,保持湿润,在... 苹果和梨采收后,经过妥善贮存,到来年春天水果淡季食用或出售,既能调剂市场余缺,又能增加收入。现介绍一种冷屋(不住人,不进烟火的冷屋子)贮存苹果、梨的方法。 一、入贮前,果子要经过挑选,剔除坏果,库房打扫干净,地面洒水,保持湿润,在贮存期间也要经常洒水。 二、堆垛筐(箱)要留墙距, 展开更多
关键词 和梨 坏果 堆垛 贮存期 入次数 采收后 烟火 增加收入 夜间通风
下载PDF
Dynamic Variation in Sugar,Acid,and ASA Contents of ‘Ganmi 6' Kiwifruit(Actinidia eriantha Benth) Fruits 被引量:3
6
作者 陈楚佳 陶俊杰 +2 位作者 曲雪艳 黄春辉 徐小彪 《Agricultural Science & Technology》 CAS 2015年第12期2589-2591,2595,共4页
[Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6' kiwifruit (Actinidia eriantha Benth) were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as mater... [Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6' kiwifruit (Actinidia eriantha Benth) were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as materials every 15 days since 20 days after full bloom (DAFB) to 170 DAFB until in mature stage. [Result] The results showed that during fruit development of ‘Ganmi 6', the total sugar soluble contents had a rising trend with relatively stable at 95 DAFB, then rose until har- vest with the maximum content (10.35%). The titratable acid content showed a trend of increasing, then declining, then increase to the harvest content (1.10%). From the sugar acid ratio, we can knew it decreased in 95 DAFB, then up to the max (9.38). The changes of AsA contents showed double ‘S' shape, decreased af- ter the first increased rapidly, slightly increased and then decreased in the early harvest. [Conclusion] It provided a theoretical basis for scientific cultivation methods to explore the nutrients regulation. 展开更多
关键词 Actinidia eriantha Benth KIWIFRUIT SUGAR ACID ASA
下载PDF
玫瑰在荆棘中生长
7
《天风》 北大核心 1998年第6期7-7,共1页
经文:马太福音7:16b—17 荆棘不能结葡萄,蒺藜也不能结无花果。好树结好果子,坏树结坏果子。 荆棘是荆棘,它结的是荆棘,它不可能结出玫瑰来。只有玫瑰才能结出玫瑰来。“好树结好果子,坏树结坏果子”是千真万确的真理。
关键词 玫瑰 马太福音 基督徒 坏果 转祸为福 神迹 真理 转危为安 无花 葡萄
下载PDF
Upper bound analytical solution for surrounding rock pressure of shallow unsymmetrical loading tunnels 被引量:6
8
作者 雷明锋 彭立敏 +2 位作者 施成华 谢友均 谭立新 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第6期2339-2347,共9页
By combining the results of laboratory model tests with relevant flow rules, the failure mode of shallow unsymmetrical loading tunnels and the corresponding velocity field were established. According to the principle ... By combining the results of laboratory model tests with relevant flow rules, the failure mode of shallow unsymmetrical loading tunnels and the corresponding velocity field were established. According to the principle of virtual power, the upper bound solution for surrounding rock pressure of shallow unsymmetrical loading tunnel was derived and verified by an example. The results indicate that the calculated results of the derived upper bound method for surrounding rock pressure of shallow unsymmetrical loading tunnels are relatively close to those of the existing "code method" and test results, which means that the proposed method is feasible. The current code method underestimates the unsymmetrical loading feature of surrounding rock pressure of shallow unsymmetrical loading tunnels, so it is unsafe; when the burial depth is less or greater than two times of the tunnel span and the unsymmetrical loading angle is less than 45°, the upper bound method or the average value of the results calculated by the upper bound method and code method respectively, is comparatively reasonable. When the burial depth is greater than two times of the tunnel span and the unsymmetrical loading angle is greater than 45°, the code method is more suitable. 展开更多
关键词 TUNNEL shallow buried tunnel unsymmetrical loading ultimate analysis method upper bound solution
下载PDF
Effects of High CO_2 Pretreatment on the Quality of Fresh-Cut Potatoes 被引量:1
9
作者 Hye-Jin Choi Jeong-Seok Cho +1 位作者 Hun-Sik Chung Kwang-Deog Moon 《Journal of Food Science and Engineering》 2014年第5期219-227,共9页
Effects of short-term high CO_2 pretreatment on quality of fresh-cut potatoes were studied. Potatoes were treated under 90% CO_2 for 18 h, peeled, cut, dipped in 1% ascorbic acid or distilled water for 3 min, packed i... Effects of short-term high CO_2 pretreatment on quality of fresh-cut potatoes were studied. Potatoes were treated under 90% CO_2 for 18 h, peeled, cut, dipped in 1% ascorbic acid or distilled water for 3 min, packed in polyethylene bags and stored for 12 d at 4 ℃. Non-treated potatoes were used as the control. High CO2 pretreatments ensured maintenance of a high level of CO_2 in headspace of packages containing fresh-cut potatoes. Both the growth of total aerobic bacteria in initial stages of post-cut storage and browning index of the cut surface were lower in high CO_2 treated cut potato. Anti-browning effect of high CO_2 pretreatment was decreased when applied in combination with ascorbic acid. Soluble solids, pH, titratable acidity and flesh firmness of fresh-cut potatoes were not affected by high CO_2 treatment. Therefore, high CO_2 treatment before slicing could be effective method to maintain quality of flesh-cut potatoes. 展开更多
关键词 POTATOES flesh cut CO_2 ascorbic acid browning.
下载PDF
Measurement of sugar content in Fuji apples by FT-NIR spectroscopy 被引量:3
10
作者 刘燕德 应义斌 《Journal of Zhejiang University Science》 EI CSCD 2004年第6期651-655,共5页
To evaluate the potential of FT-NIR spectroscopy and the influence of the distance between the light source/detection probe and the fruit for measuring the sugar content (SC) of Fuji apples, diffuse reflectance spectr... To evaluate the potential of FT-NIR spectroscopy and the influence of the distance between the light source/detection probe and the fruit for measuring the sugar content (SC) of Fuji apples, diffuse reflectance spectra were measured in the spectral range from 12500 to 4000 cm^-1 at 0 mm, 2 mm, 4 mm and 6 mm distances. Four calibration models at four distances were established between diffused reflectance spectra and sugar content by partial least squares (PLS) analysis. The correlation coefficients (R) of calibrations ranged from 0.982 to 0.997 with SEC values from 0.138 to 0.453 and the SECV values from 0.74 to 1.58. The best model of original spectra at 0 mm distance yielded high correlation determination of 0.918, a SEC of 0.092, and a SEP of 0.773. The results showed that different light/detection probe-fruit distances influence the apple reflective spectra and SC predictions. 展开更多
关键词 FT-NIR spectroscopy Nondestructive measurement Sugar content Fuji apples Partial least squares analysis
下载PDF
An integrated method to calculate the spatial distribution of overburden strata failure in longwall mines by coupling GIS and FLAC^(3D) 被引量:15
11
作者 Zhao Xiaodong Jiang Jian Lan Bochao 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2015年第3期369-373,共5页
The spatial distribution of overburden strata failure is of significant importance to affect the safety of underground mining. Because the traditional methods cannot be applied in all coal mines due to geological cond... The spatial distribution of overburden strata failure is of significant importance to affect the safety of underground mining. Because the traditional methods cannot be applied in all coal mines due to geological conditions or mining structures, a method of coupling FLAC3D with GIS was presented to calculate the spatial distribution of overburden strata failure in longwall coal mines. After building the spatio-temporal database from the calculation results of FLAC3D, the height of the mining-induced fractured zone in the overburden strata can be calculated by using the given height function. The results of case study show that the height of the fractured zone reached the maximum value at the face advance equal to about the panel width. The outcome of the work presented will be helpful in practice to improve safety in the production. 展开更多
关键词 GIS Overburden strata Spatial modeling Coupling
下载PDF
Total hip arthroplasty for treatment of elderly patients with comminuted intertrochanteric fracture accompanied by femoral head necrosis 被引量:11
12
作者 刘先哲 杨闻 +2 位作者 杨述华 许伟华 叶树楠 《Chinese Journal of Traumatology》 CAS 2008年第6期359-363,共5页
Objective: To assess the curative effect and investigate the indications of total hip arthroplasty for treatment of comminuted intertrochanteric fractures. Methods: Total hip arthroplasty was carried out in 9 cases ... Objective: To assess the curative effect and investigate the indications of total hip arthroplasty for treatment of comminuted intertrochanteric fractures. Methods: Total hip arthroplasty was carried out in 9 cases of severe intertrochanteric fracture. The patients included two men and seven women. The average age of the patients was 68 years (48-75 years). The period from fracture to operation was 5 days (2-10 days). The mean follow- up period lasted for 11 months (3 months-2 years). There was one patient with comminuted intertrochanteric fracture accompanied by femoral head necrosis and 2 patients with intertrochanteric fracture and stroke. Other 6 patients had severe osteoporosis. The Harris score before operation was 63 points (45-71 points).Results: At the last follow-up, the patients gained 86points (70-100 points) according to the Harris score. The effects of the 8 cases were good. The Harris score of all patients improved after treatment. Only two hemiplegia patients needed sticks to walk. The others could walk without hip pain. No radiographic evidence of acetabular wear and prosthesis dislocation or other major complications happened during the follow-up. Conclusions: Prosthetic replacements can well treat unstable intertrochanteric fracture if operative indication is correctly selected. It is suitable for elderly patients and the operation should be performed by experienced surgeons. 展开更多
关键词 Hip fractures ARTHROPLASTY Femoral head necrosis
原文传递
Effects of Yinchenhao Decoction(茵陈蒿汤) for Non-alcoholic Steatohepatitis in Rats and Study of the Mechanism 被引量:10
13
作者 陈少东 范应 徐维佳 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2011年第3期220-223,共4页
Objective:To observe the effects of Yinchenhao Decoction(茵陈蒿汤) for non-alcoholic steatohepatitis(NASH) in rats and study the mechanism.Methods:Total 18 male SD rats were randomly divided into a normal control grou... Objective:To observe the effects of Yinchenhao Decoction(茵陈蒿汤) for non-alcoholic steatohepatitis(NASH) in rats and study the mechanism.Methods:Total 18 male SD rats were randomly divided into a normal control group,a model group and a treatment group,6 rats in each group.Rats in the model and treatment groups were fed with high-fat forage for 10 weeks to prepare the NASH model,and the rats in the treatment group were administrated with Yinchenhao Decoction from the 6th week for 5 weeks.All rats were sacrificed at the end of the10th week and the samples were collected.Serum alanine aminotransferase(ALT) activity,tumor necrosis factor-α(TNF-α) level,and hepatic triglyceride(TG) and free fatty acid(FFA) contents were determined.Hepatic pathological changes were detected by HE staining.Results:Serum ALT activity,TNF-α level,hepatic TG and FFA contents,and the fatty deposition in hepatocytes were significantly reduced in the rats of the treatment group.Conclusion:Yinchenhao Decoction has good therapeutic effects for NASH,protecting the liver function and reducing the fatty deposition in liver,which are possibly related with reduction of FFA content and inhibition of TNF-α expression. 展开更多
关键词 Yinchenhao Decoction non-alcoholic steatohepatitis(NASH) free fatty acid(FFA) tumor necrosis factor-α(TNF-α)
原文传递
Long term surgical treatment outcome of talar body fracture 被引量:2
14
作者 Ramesh Kumar Sen Sujit Kumar Tripathy Shakthivel RR Manoharan Vibhu Krishnan Tajir Tamuk Vanyambadi Jagadeesh 《Chinese Journal of Traumatology》 CAS 2011年第5期282-287,共6页
Objective: Talar body fractures are rare and have poor treatment outcome. The purpose of this study is to report the long term surgical treatment outcome of closed talar dome fractures.Methods: Eight closed talar bo... Objective: Talar body fractures are rare and have poor treatment outcome. The purpose of this study is to report the long term surgical treatment outcome of closed talar dome fractures.Methods: Eight closed talar body fractures, treated by open reduction and internal fixation with small fragment cancellous screws and/or Herbert screws in our level Ⅰ trauma centre were retrospectively analyzed. Preoperative and postoperative radiographs of the foot (antero-posterior, lateral and oblique views) and ankle (antero-posterior, lateral and mortise views) were obtained. The patients were followed up both radiologically and functionally (foot function index, FFI) after 3 weeks, 6 weeks, 3 months, 6 months and then annually.Results: There were five crush fractures and three shear fractures (two sagittal shear and one coronal shear),with average follow-up of 5 years. No early complications were noticed in these patients. Late complications included osteoarthrosis of subtalar/ankle joints in six patients and osteonecrosis oftalar body in four patients. On functional assessment, mean FFI after 5 years was 104.63 points and worse outcome was noticed in crush injury and coronal shear fractures. Sagittal shear fractures had a good functional and radiological outcome.Conclusions: Late complications subsequent to surgically treated talar body fractures are inevitable, even though exact reduction and rigid fixation are achieved, thus patients are supposed to be counseled about the adverse outcome. Although crush and coronal shear fractures have poor outcome, sagittal injuries have good prognosis on long term evaluation. 展开更多
关键词 Fractures bone TALUS Fracture fixation internal
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部