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Experimental study for the particle size distribution of mine spoil pile cross section

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Journal of Coal Science & Engineering(China) 2010年第4期16卷 415-418页

作者： JIANG Li-guo Liang bing lu Xiu-sheng Department of Mechanics Engineering and Science Liaoning Technical University Fuxin 123000 China

The aim of the experiment is to analyze and view the distribution of gangue withdifferent particle sizes in mine spoil pile cross *** to the Dimensionalmethod,'Pi'theorem was employed first to abbreviate ten physical and mechanical parametersto three dimensionless groups, and then the similarity criterion and coefficient ofthe experiment were determined and calculated based on particle size distribution *** similarity model was designed and constructed to represent the process of the minespoil *** profile of the final model shows that the small sized particles mainly composethe upper zone of the mine spoil pile, while the bottom of the pile is dominated bybigger sized particles, and the intermediate section presents a zigzag stripe cross-beddingstructure which is composed by small-medium scale particles and medium-large *** stripe has two critical angles: one is the angle in which gangue particlescan maintain their stability condition, with approximate range from 24° to 26°; and theother is the angle in which particles can stop gliding downwards, approximately varyingfrom 34° to 36°.

关键词： mine spoil pile particle size distribution cross section similarity model di- mensional analysis

Contrast sensitivity in 14 MeV fast neutron radiography

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Nuclear Science and Techniques 2017年第6期28卷 115-122页

作者： Chang-bing lu Jie Bao Ying Huang Peng Xu Xiong-Jun Chen Qi-Wei Zhang Xi-Chao Ruan Key Laboratory of Nuclear Data China Institute of Atomic Energy Xi'an Institute of High Technology Science and Technology Information Center China Academy of Engineering Physics

Fast neutron radiography(FNR) is an effective non-destructive testing *** to the scattering effect and low detection efficiency,the detection limit of FNR under certain conditions cannot be *** order to obtain the minimum detectable thickness by FNR,we studied the contrast sensitivity of FNR lead samples,both theoretically and *** then clarified the relationship between pixel value and irradiation time,and sample materials and *** experiment,using a4-cm-thick lead sample,verified our theoretical expression of FNR contrast sensitivity.

关键词： Fast neutron radiography Contrast sensitivity Experimental research

Sparse current source reconstruction in MCG

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Science Bulletin 2015年第14期60卷 1235-1240页

作者： Mengpei Chen Shiqin Jiang lu bing Chen Zhao Birgit Hailer Dietrich Gr nemeyer Peter Van Leeuwen School of Electronics and Information Engineering Tongji University Department of Internal Medicine Philippusstift University Witten/Herdecke Faculty of Health Gro¨ nemeyer Institute for MicrotherapyUniversity Witten/Herdecke

Cardiac current source reconstruction is investigated by a fast greedy sparse(FGS) method applied to simulated and real magnetocardiography(MCG) data measured using 61-channel superconducting quantum interference device. The approach reduces the size of the lead field matrix based on a priori knowledge of dipolar magnetic field map. Consequently, the computational demands and the accuracy of sparse source reconstruction are improved simultaneously. The simulation results demonstrate that the FGS method is capable of reconstructing sparse equivalent current sources using the magnetic field data generated by a single current source with varying orientation or multiple current sources generated randomly. In addition, we analyze the cardiac current source reconstructed with real MCG data at typical instants and discuss the electrical excitation conduction during the QRS complex based on moving sparse source imaging.

关键词： Magnetocardiography (MCG) Sparsedecomposition Current source reconstruction Cardiac electrical activity Signal processing

Synthesis of Dendronized Aromatic Polyamides with Chloromethyl Groups in the Periphery by Macromonomer Approach

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Chinese Chemical Letters 2006年第11期17卷 1507-1510页

作者： Mei Hua LIU Wei Jian XU Xiao Cong XU Yah bing lu Yah Ru MIAO College of Chemistry ＆ Chemical Engineering Hunan University Changsha 410082

The preliminary results for one-pot synthesis of dendronized aromatic polyamides with chloromethyl groups in the periphery by approach were reported first time. The GPC analysis of the resulting dendronized polymers h... 详细信息

关键词： Macromonomer dendronized functionalized polyamide.

Impact of agricultural residual plastic film on the growth and yield of drip-irrigated cotton in arid region of Xinjiang, China

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International Journal of Agricultural and Biological Engineering 2020年第1期13卷 160-169页

作者： Can Hu Xufeng Wang Shiguo Wang bing lu Wensong Guo Chaoji Liu Xiuying Tang College of Engineering China Agricultural UniversityBeijing 100083China College of Mechanical and Electrical Engineering Tarim UniversityAlar 843300XinjiangChina Xinjiang Academy of Agricultural and Reclamation Science Mechanical Equipment Research Institute Shihezi 832000China

Long-term and widespread use of plastic mulching has led to the accumulation of residual plastic film(RPF)in farmland soils of Xinjiang,***,there is no specific quantitative basis for RPF pollution or a clear understanding of the influence of residual film on crop *** aim of this study was to investigate the effect of RPF on the growth of cotton,an important cash crop of *** on the field conditions and previous reports,various amount of residual film was applied in 0-30 cm soil *** growth index including emergence rate,dry matter,and yield of cotton was examined at different growth stages under different soil residual film *** demonstrated a significant effect of RPF on soil moisture distribution and *** residues had a significant effect on cotton growth at levels above 200 kg/hm2,and the yield decreased as the RPF amount *** on these findings,200 kg/hm2 was suggested as a threshold level to determine the effects of RPF on *** study provided a basis to rate RPF pollution in farmland soils and help understand the impact of pollution on crop productivity.

关键词： residual plastic film plastic film pollution soil pollution pollution control cotton production management

Developing newly emerging high-end industries in the low-carbon economy

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Ecological Economy 2010年第2期6卷 131-139页

作者： lu bing Institute of Economics Shandong Social Sciences AcademyJinan 250002P.R.China

Global warming has exerted severe challenges on the sustainable development of economic society and the food security,resource security,energy security and ecological security of the ***-carbon economy has become the current trend of the global economic ***,the industrial development of China must seek the institutional innovation and technological innovation so as to improve the efficiency of ***-end industry has become the main factor of the future development of the economic ***,to develop the high-end industry is an important approach to realize low-carbon *** paper explores the strategies of the development of newly emerging high-end industries against the background of low-carbon economy form such perspectives as effective use of resources,the improvement of independent innovative ability,and leading the high-end,high quality and high efficiency industries to the important region.

关键词： Low-carbon economy High-end industry Sustainable development

Financial crisis and sustainable development of Chinese manufacturing industry

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Ecological Economy 2009年第1期5卷 38-49页

作者： lu bing Institute of Economics Shandong Academy of Social Sciences Jinan 250002 P. R. China

Sub-prime lending crisis has become an international fi nancial crisis, which is evolving into an economic recession sweeping across the West. Financial crisis leads to the demand reduction in western countries, and as the largest manufacturing country, China must face overproduction. The role of China as "world factory" determines that fi nancial crisis will severely attack Chinese manufacturing industry. The unsustainable development of Chinese manufacturing industry is mainly reflected in the following aspects: heavy dependence on export, low-level manufacturing link, lack of modern service industry and high-tech industry, weak independent innovative ability, unsustainable exploration of heavy-pollution resources, and lack of international famous brands. How to transform crisis to opportunities is an urgent research topic. Under the circumstance of financial crisis, Chinese manufacturing industry has more external drives to change the current situation. Therefore, financial crisis becomes not only an opportunity for Chinese manufacturing industry to improve itself based on the existing accumulation but also a chance for China to transform from "world factory" into a powerful nation of manufacturing industry in the world.

关键词： Financial crisis Sustainable development A powerful nation of manufacturing industry

Rational solutions of Painlevé-Ⅱequation as Gram determinant

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Chinese Physics B 2023年第12期32卷 200-211页

作者：张晓恩陆冰滢 College of Mathematics and Systems Science Shandong University of Science and TechnologyQingdao 266590China SISSA Via Bonomea 265TriesteItaly

Under the Flaschka-Newell Lax pair,the Darboux transformation for the Painlevé-Ⅱequation is constructed by the limiting *** the aid of the Darboux transformation,the rational solutions are represented by the Gram determinant,and then we give the large y asymptotics of the determinant and the rational ***,the solution of the corresponding Riemann-Hilbert problem is obtained from the Darboux matrices.

关键词： Painlevé-Ⅱequation Darboux transformation rational solutions

Ileal duplication mimicking intestinal intussusception:A congenital condition rarely reported in adult

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World Journal of Gastroenterology 2013年第38期19卷 6500-6504页

作者： bing-lu Li Xin Huang Chao-Ji Zheng Jiao-Lin Zhou Yu-Pei Zhao The First Department of General Surgery Peking Union Medical College Hospital

Intestinal duplication is an uncommon congenital condition in young adults.A 25-year-old man complained of chronic,intermittent abdominal pain for 3 years following previous appendectomy for the treatment of suspected *** discomfort and pain,suggestive of intestinal obstruction,recurred after operation.A tubular mass was palpable in the right lower *** tomography enterography scan identified suspicious intestinal intussusception,while Tc-99m pertechnetate scintigraphy revealed a cluster of strip-like abnormal radioactivity in the right lower *** exploratory laparotomy,a tubular-shaped ileal duplication cyst was found arising from the mesenteric margin of the native ileal segment located 15 cm proximal to the ileocecal *** was performed along with the removal of the duplication disease,and the end-to-end anastomosis was done to restore the gastrointestinal tract *** examination showed ileal duplication with ectopic gastric *** patient experienced an eventless postoperative recovery and remained asymptomatic within 2 years of postoperative follow-up.

关键词： Ileal duplication cyst Adulthood Computed tomography enterography Tc-99m pertechnetate scintigraphy