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| 1 | Distribution and genesis of the anomalously high porosity zones in the middle-shallow horizons of the northern Songliao Basin显示文摘High-quality reservoirs occur in the middle-shallow horizons of the northern Songliao Basin. The distribution and genesis of their anomalously high porosity zones were studied using measured porosities, examination of ordinary thin sections and blue epoxy resin-impregnated thin sections and by SEM. The results show that there are three anomalously high porosity zones at the depth of 450-900 m, 1,300-1,900 m, 2,050-2,350 m respectively, named zone i, zone ii and zone iii from top to bottom. Horizontally, zone i and zone ii are distributed all over the basin except in the Southeastern Uplift, while zone iii is only distributed in the Central Depression. Zone i was formed by meteoric water leaching as well as organic acid dissolution. Zones ii and iii were dominantly formed by organic acid dissolution. Additionally, clay mineral transformation generating H+ and hydrocarbon emplacement retarding the cementation of sandstones are also important for the formation of zones ii and iii. | Meng Yuanlin Liang Hongwei Meng Fanjin Wu Heyong Wang Cheng Xiu Hongwen Zhang Anda Li Yaguang Guo Rixin | 2010 | Petroleum Science2010，7，3： | 29 |
| 2 | Failure mechanism and stability control of a large section of very soft roadway surrounding rock shear slip显示文摘The measured data and simulation test phenomenon of surrounding rock deformation and failure at the project site indicate that shear failure which firstly occurs in surrounding rock, block slip and second shear failure are the root cause of deformation and damage of supporting structure of the surrounding rock at a large scale. We derived limit load of surrounding rock shear slip failure and reasonable support resistance of given load by means of shear slip line field theory, discussed the main factors which influence the limit load of surrounding rock. Shear slip line field and limit load of circular tunnel surrounding rock were obtained by means of physical simulation test, which agreed well with the theoretical analysis results. Based on the theoretical analysis and physical simulation test, the cause deformation and failure at large scale of Xinshanghai No. 1 coal mine big section ingate was analyzed, and the shear failure resistance and block slip in surrounding rock were proposed as the core technical supporting ideas. Proper range of supporting resistance which came from calculation was suggested. The support scheme which is mainly composed of large grouting anchor, sprayed anchor net support technique and full-face grille concrete finally ended the dilemma of repeated failure and mending of ingate and created critical conditions for smooth production in the coal mine. | Meng Bo Jing Hongwen Chen Kunfu Su Haijian | 2013 | International Journal of Mining Science and Technology2013，23，1： | 22 |
| 3 | A Novel Secure Data Transmission Scheme in Industrial Internet of Things显示文摘The industrial Internet of Things(IoT)is a trend of factory development and a basic condition of intelligent factory.It is very important to ensure the security of data transmission in industrial IoT.Applying a new chaotic secure communication scheme to address the security problem of data transmission is the main contribution of this paper.The scheme is proposed and studied based on the synchronization of different-structure fractional-order chaotic systems with different order.The Lyapunov stability theory is used to prove the synchronization between the fractional-order drive system and the response system.The encryption and decryption process of the main data signals is implemented by using the n-shift encryption principle.We calculate and analyze the key space of the scheme.Numerical simulations are introduced to show the effectiveness of theoretical approach we proposed. | Hongwen Hui Chengcheng Zhou Shenggang Xu Fuhong Lin | 2020 | China Communications2020，17，1： | 19 |
| 4 | Deformation and failure characteristics of anchorage structure of surrounding rock in deep roadway显示文摘This paper investigated the stress evolution,displacement field,local deformation and its overall distribution,and failure characteristics of the anchorage structure of surrounding rock with different rockbolt spacing through the model experiments.The influences of the pre-tightening force and spacing of rockbolt on the support strength of the anchorage structure of surrounding rock were analyzed by the simulation using FLAC3D numerical software.The support scheme of the excavated roadway was then designed,and the effectiveness of this support scheme was further verified by the displacement measurement of the roadway.The results showed that the maximum displacement between the roof and floor of the west wing track roadway in Kouzidong coal mine,China is about 42 mm,and the maximum displacement between its both sides is about 72 mm,indicating that the support scheme proposed in this study can ensure the stability and safety of the excavated roadway. | Hongwen Jing Jiangyu Wu Qian Yin Ke Wang | 2020 | International Journal of Mining Science and Technology2020，30，5： | 19 |
| 5 | Current status of adoption of no-till farming in the world and some of its main benefits显示文摘In 1999 no-tillage farming,synonymous of zero tillage farming or conservation agriculture,was adopted on about 45 million ha world wide,growing to 72 million ha in 2003 and to 111 million ha in 2009,corresponding to an growth rate of 6 million ha per annum.Fastest adoption rates have been experienced in South America where some countries are using no-tillage farming on about 70%of the total cultivated area.Opposite to countries like the USA where often fields under no-tillage farming are tilled every now and then,more than two thirds of the area under no-tillage systems in South America is permanently not tilled;in other words once adopted,the soil is never tilled again.The spread of no-tillage systems on more than 110 million ha world-wide shows the great adaptability of the systems to all kinds of climates,soils and cropping conditions.No-tillage is now being practiced from the artic circle over the tropics to about 50ºlatitude south,from sea level to 3,000 m altitude,from extremely rainy areas with 2,500 mm a year to extremely dry conditions with 250 mm a year.No-till farming offers a way of optimizing productivity and ecosystem services,offering a wide range of economic,environmental and social benefits to the producer and to the society.At the same time,no-till farming is enabling agriculture to respond to some of the global challenges associated with climate change,land and environmental degradation,and increasing cost of food,energy and production inputs.The wide recognition of no-till farming as a truly sustainable system should ensure the spread of the no-till technology and the associated practices of organic soil cover and crop rotation,as soon as the barriers to its adoption have been overcome,to areas where adoption is currently still low.The widespread adoption globally also shows that no-tillage farming cannot any more be considered a temporary fashion or a craze;instead largely through farmers’own effort,the system has established itself as a farming practice and a different way of thinking about sustainable agro-ecosystem management that can no longer be ignored by scientists,academics,extension workers,farmers at large as well as equipment and machine manufacturers and politicians. | Rolf Derpsch Theodor Friedrich Amir Kassam Li Hongwen | 2010 | International Journal of Agricultural and Biological Engineering2010，3，1： | 18 |
| 6 | Physical and mechanical properties of sandstone containing a single fissure after exposure to high temperatures显示文摘In order to investigate the physical and mechanical properties of sandstone containing fissures after exposure to high temperatures,fissures with different angles α were prefabricated in the plate sandstone samples,and the processed samples were then heated at 5 different temperatures.Indoor uniaxial compression was conducted to analyze the change rules of physical properties of sandstone after exposure to high temperature,and the deformation,strength and failure characteristics of sandstone containing fissures.The results show that,with increasing temperature,the volume of sandstone increases gradually while the quality and density decrease gradually,and the color of sandstone remains basically unchanged while the brightness increases markedly when the temperature is higher than 585 ℃;the peak strength of sandstone containing fissures first decreases then increases when the temperature is between 25℃and 400℃.The peak strain of sandstone containing fissures increases gradually while the average modulus decreases gradually with increasing temperature,and the mechanical properties of sandstone show obvious deterioration after 400 ℃.The peak strain of sandstone containing fissures increases gradually while the average modulus decreases gradually with increasing temperature;with increasing angle αof the fissure,the evolution characteristics of the macro-mechanical parameters of sandstone are closely related to the their own mechanical properties.When the temperature is 800 ℃,the correlation between the peak strength and average modulus of sandstone and the angle α of the fissure is obviously weakened.The failure modes of sandstone containing fissures after high temperature exposure are of three different kinds including:tensile crack failure,tensile and shear cracks mixed failure,and shear crack failure.Tensile and shear crack mixed failure occur mainly at low temperatures and small angles;tensile crack failure occurs at high temperatures and large angles. | Zhu Tantan Jing Hongwen Su Haijian Yin Qian Du Mingrui Han Guansheng | 2016 | International Journal of Mining Science and Technology2016，26，2： | 15 |
| 7 | Study on ultracapacitor-battery hybrid power system for PHEV applications显示文摘 | 熊瑞 He Hongwen Wang Yi Zhang Xiaowei | 2010 | High Technology Letters2010，16，1： | 14 |
| 8 | Numerical investigation on the sensitivity of jointed rock mass strength to various factors显示文摘The mechanical properties of jointed rock masses, such as strength, deformation and the failure mechanism, can be understood only by studying the sensitivity of jointed rock mass strength (both the peak and residual strengths) to the factors that affect it. An orthogonal design of uniaxial compression tests was simulated on eighteen groups of jointed rock specimens having different geometric and mechanical properties using RFPA2D (Rock Failure Process Analysis) code. The results show that the peak strength is controlled by the geometric parameters of the joints, but that the residual strength is controlled by the mechanical prop- erties of the joint interfaces. The failure mode of jointed rock specimens is mainly shear failure. Joint quantity, or density, is the most important index that affects jointed rock mass strength and engineering quality. | NIU Shuangjian JING Hongwen HU Kun YANG Dafang | 2010 | Mining Science and Technology2010，20，4： | 14 |
| 9 | Adsorption of Cd(Ⅱ) from acidic aqueous solutions by tourmaline as a novel material显示文摘Batch experiments were conducted to investigate the behavior and mechanisms for the adsorption of Cd(Ⅱ) from aqueous solutions by tourmaline under acidic conditions. The results indicated that the adsorption of Cd(Ⅱ) significantly depend on the adsorption time, temperature, and the initial concentration of the metal ion. Furthermore, tourmaline had a very good adsorption capacity for Cd(Ⅱ) in acidic, neutral and alkaline aqueous solutions. This good adsorption capacity is attributed to the observation that tourmaline can automatically adjust the pH values of acidic (except pH 2.0 and 3.0), neutral or alkaline aqueous solutions to 6.4. Specifically, the removal capacity for Cd(Ⅱ) was higher at strongly acidic pH values (in contrast to industrial wastewater pH values) compared to that obtained for other types of adsorbents. Furthermore, the results obtained in this study showed good fits to the Langmuir and Freundlich adsorption isotherms. However, the Langmuir model fit better than the Freundlich model. The maximum uptake of Cd(Ⅱ) by tourmaline was 31.77, 33.11 and 40.16 mg/g at pH 4.0 at 15, 25 and 35°C, respectively. Therefore, tourmaline is an effective adsorbent for the removal of Cd(Ⅱ) from acidic aqueous solutions. In addition, the kinetics for the Cd(Ⅱ) adsorption by tourmaline closely followed the pseudo-second-order model. The thermodynamic parameters indicated that adsorption was feasible, spontaneous, and endothermic. Furthermore, the pH variation after adsorption, ζ-potential, metal ions desorbed and released, and FT-IR analysis indicated that the physisorption and chemisorption mechanisms of tourmaline for heavy metals. These mechanisms included water that was automatically polarized by tourmaline, the ion exchange process, and electropolar adsorption. Among the mechanisms, the automatic polarization of water caused by tourmaline is a unique adsorption mechanism for tourmaline. | WANG CuiPing WANG BaoLin LIU JingTing YU Li SUN HongWen WU JiZhou | 2012 | Chinese Science Bulletin2012，57，24： | 11 |
| 10 | Development of small/medium size no-till and minimum-till seeders in Asia:A review显示文摘The benefits of conservation agriculture(CA)have been widely recognized and CA has been widely adopted in many parts of the world.However,there are some factors that limit the widespread adoption of CA in Asia.The most prominent factor appears to be the lack of suitable CA seeders for small to medium sized land-holding(SLH)farmers.This paper summarizes the small to medium no-till and minimum-till seeders currently available in Asia,and classifies these seeders into four types:manually operated units,animal traction seeders,two-wheel tractor and four-wheel tractor driven seeders.Detailed characteristics have been provided for some typical CA seeders and comparisons were made as to their suitability under particular working conditions.Typically manual and animal traction seeders are confined to small farms and hilly areas,while the larger CA seeders suited to four-wheel tractors are used on larger acreages.To ensure seeding performance on most four-wheel tractor CA seeders,two types of anti-blocking mechanisms(passive and active anti-blocking)have been fitted.Finally,the paper proposes a future direction and development of CA seeders for small/medium size farms in Asia,and also suggests changes in policy support,improvement of anti-blocking mechanisms,suitability for various crops,geographical zones and the contribution of development by public private partnerships to advance the adoption of CA seeders. | He Jin Zhang Zhiqiang Li Hongwen Wang Qingjie | 2014 | International Journal of Agricultural and Biological Engineering2014，7，4： | 11 |
| 11 | Fracture evolution characteristics of sandstone containing double fissures and a single circular hole under uniaxial compression显示文摘The uniaxial compression experiments on the sandstone samples containing double fissures and a single circular hole were carried out by using electro-hydraulic servo universal testing machine to investigate the effect of rock bridge angle β and fissure angle α on mechanical properties and evolution characteristics of cracks.The results show that the peak strength,peak strain and elastic modulus of defected specimens decrease comparing with those for intact sample,and show a decreased trend firstly and then increase with β changing from 0° to 90°.The peak strength and elastic modulus achieve the minimum value as the rock bridge angle is 60°,while the peak strain reaches the minimum value with the rock bridge angle of 45°.The crack initiation of tested rock samples occurs firstly in stress concentration areas at tips of prefabricated fissures under uniaxial compression,and then propagates constantly and coalescences with the prefabricated hole.Some secondary cracks initiate and propagate as well until buckling failure happens.The rock bridge angle has a great influence on crack initiation,coalescence,final failure mode,crack initiation stress and transfixion stress.The peak strength varies significantly,while the elastic modulus and peak strain change slightly,and the failure modes are also different due to the influence of fissure angle. | Chen Minliang Jing Hongwen Ma Xiujun Su Haijian Du Mingrui Zhu Tantan | 2017 | International Journal of Mining Science and Technology2017，27，3： | 11 |
| 12 | dentification of TRA2B-DNAH5 fusion as a novel oncogenic driver in human lung squamous cell carcinoma显示文摘 | Fei Li Zhaoyuan Fang Jian Zhang Chen Li Hongyan Liu Jufeng Xia Hongwen Zhu Chenchen auo Zhen Qin Fuming Li Xiangkun Han Yuetong Wang Yan Feng Ye Wang Wenjing Zhang Zuoyun Wang Yujuan Jin Yihua Sun Wenyi Wei Rong Zeng Haiquan Chen Hongbin Ji | 2016 | Cell Research2016，26，10： | 9 |
| 13 | Psychological status and diabetes-related distress of Chinese type 1 diabetes patients in Jiangsu province, China显示文摘We sought to assess the psychological status and diabetes-related distress of Chinese type 1 diabetes patients in Jiangsu province,China.According to the World Health Organization criteria,42 patients with type 1 diabetes were enrolled in the study and assessed with the Self-Rating Anxiety Scale(SAS),Self-Rating Depression Scale(SDS)and Diabetes Distress Scale(DDS).All data were tabulated and statistical analyses were performed.The study summarized cases of 42 patients with type 1 diabetes,including 17 males and 25 females with a mean age of 23±12 years and a mean duration of diabetes of 7±6 years.Compared to the Chinese normative data,the SAS standard score was significantly higher,whereas SDS standard score had no statistical significance.The SAS standard score was most highly correlated with diabetes duration(γ=0.547,P=0.011).Additionally,19.5%of the patients had moderate or even severe diabetes-related distress and 21.4%had moderate or even severe emotional burden while 26.2%had regimen-related distress.Multiple stepwise regression analysis showed that the mean correlation between DDS and the four domains was high,particularly the emotional burden domain(estimatedβ=0.363,P<0.001)and regimen-related distress domain(estimatedβ=0.356,P<0.001).The correlation between SAS and DDS was positive(estimatedβ=0.039,P=0.027).In conclusion,the results showed the importance of psychological aspects in Chinese individuals with type 1 diabetes.Screening and treatment of psychological aspects may result in better adherence and increased quality of life for patients with diabetes. | Lulu Kong Yun Cai Gang Mei Rong Gu Xiaojiao Zhang Yao Qin Ya Cai Yan Li Hongwen Zhou Mei Zhang Tao Yang | 2013 | The Journal of Biomedical Research2013，27，5： | 9 |
| 14 | Stress evolution and support mechanism of a bolt anchored in a rock mass with a weak interlayer显示文摘By applying experimental method, the bolt stress and supporting mechanism is studied during the deformation process of a rock mass containing a weak interlayer. The force measuring bolt is installed manually and instrumented five pairs of symmetrical strain gauges. The experimental results show that the fully grouted bolt suffers tensile, compressive, bending and shear stress at the same time. The bolt stress evolution is closely related to the deformation stages of the rock mass which are very gradually varying stage, gradually varying stage at the pre-peak and suddenly varying stage at the post peak stage.The axial compressive stress in the bolt is mainly induced by the moment. Thus, in most cases the axial compressive stress is distributed on one side of the bolt. For axial stresses, induced by the axial force and the bending moment at the post-peak stage, three types of changing are observed, viz. increasingincreasing type, decreasing-increasing type and increasing-decreasing type. The stress characteristics of the bolt section in the weak interlayer are significantly different from those in the hard rock. The failure models of the anchored bolt are tensile failure and shear failure, respectively. The bolt not only provides constraints on the free surface of the rock mass, but also resists the axial and lateral loading by the bending moment. This study provides valuable guidelines for bolting support design and its safety assessment. | Ding Shuxue Jing Hongwen Chen Kunfu Xu Guo'an Meng Bo | 2017 | International Journal of Mining Science and Technology2017，27，3： | 9 |
| 15 | Effects of natural organic matter on cadmium mobility in paddy soil: A review显示文摘Cadmium(Cd) contamination in paddy soil has caused public concern. The uptake of Cd by rice plants depends on soil Cd mobility, which is in turn substantially influenced by organic matter(OM). In this review, we first summarize the fate of Cd in soil and the role of OM. We then focus on the effects of OM on Cd mobility in paddy soil and the factors influencing the remedial effectiveness of OM amendments. We further discuss the performance of straw incorporation in the remediation of Cd-contaminated paddy soils reported in laboratory and field studies. Considering the huge production of organic materials(such as straw) in agriculture, the use of natural OM for soil remediation has obvious appeal due to the environmental benefits and low cost. Although there have been successful application cases, the properties of OM amendments and soil can significantly affect the remedial performance of the OM amendments. Importantly, straw incorporation alone does not often decrease the mobility of Cd in soil or the Cd content in rice grains. Careful evaluation is required when considering natural OM amendments, and the factors and mechanisms that influence their remedial effectiveness need further investigation in paddy soil with realistic Cd concentrations. | Chaolei Yuan Qi Li Zhaoyang Sun Hongwen Sun | 2021 | Journal of Environmental Sciences2021，33，6： | 8 |
| 16 | Comparative study on skin temperature response to menstruation at acupuncture points in healthy volunteers and primary dysmenorrhea patients显示文摘OBJECTIVE:To assess skin temperature response to menstruation at acupuncture points in primary dysmenorrhea(PD) patients and healthy volunteers so as to explore acupuncture point specificity in reflecting diseases in the light of skin temperature.METHODS:Fifty-two PD patients and 49 healthy volunteers were recruited.Skin temperature measurements were performed with a skin temperature assessment device at 10 points.Absolute difference between skin temperature of the same point on the left and right side is used as main outcome measure.RESULTS:On the first day of menstruation, when menstrual pain attacking in PD patients, a significant increase in skin temperature difference was detected at Taixi(KI 3) compared with the healthy group(P < 0.01).A significant reduction in skin temperature difference was detected at Taixi(KI 3) in the first day of menstruation compared with those values in the third day after menstruation(P < 0.01)in the healthy group.On the third day after menstruation, a significant reduction in skin temperature difference was found at Zhongdu(LR 6) in PD group compared with the healthy group(P < 0.05).No significant differences of skin temperature were detected at other points(P > 0.05).CONCLUSION:The skin temperature difference at menstruation-relevant points in PD patients did not all change significantly more than those in women without PD.Significant difference was only found in Taixi(KI 3), the Yuan-source point of Kidney meridian. | She Yanfen Ma Liangxiao Zhu Jiang Qi Conghui Wang Yanxia Tang Ling Li Chunhua Yuan Hongwen Liu Yuqi Song Jiashan | 2017 | Journal of Traditional Chinese Medicine2017，37，2： | 8 |
| 17 | Paleotopographic controls on facies development in various types of braid-delta depositional systems in lacustrine basins in China显示文摘Braid-delta depositional systems are widely developed in most continental basins in China.Research indicates that,for different types of braid delta,the facies sequence and association,which are critical to the prediction of the distribution of reservoirs,differ greatly.This study illustrates the differences in braid-delta depositional systems in terms of sedimentary characteristics,associated systems and reservoir distributions using three typical paleodeltas in western China:the Zhenbei delta of the upper Triassic Yanchang Formation in the Ordos Basin,the Yuanba delta of the upper Triassic Xujiahe Formation in the Sichuan Basin and the Jimsar delta of the upper Permian Wutonggou Formation in the Junggar Basin.A stratigraphic framework was established using seismic data,logs and cores by choosing stable mud sections as regional correlation markers and,topographies of these deltas were reconstructed based on the decompaction and paleobathymetric corrections.Based on both the paleotopography of these deltas and the differences of their sedimentary facies,these braided deltas can be classified into two systems:steep-gradient braid-delta-turbidite system and low-gradient braid-delta-lacustrine system.Moreover,the low-gradient braid-delta-lacustrine system can be further divided into interfingered and sharp contact sub-types according to the contact relation between the delta sands and lacustrine muds.This study shows that the paleotopography of basin margins strongly controls the accommodation as braid deltas prograde into lacustrine basins and,influences the location of the shoreline in response to changes in the lake level.Furthermore,paleotopography plays a significant role in facies and reservoir distribution which is important for petroleum exploration and development. | Dong Feng Hongwen Deng Zhan Zhou Xiaopeng Gao Longtao Cui | 2015 | Geoscience Frontiers2015，6，4： | 7 |
| 18 | How is mRNA expression predictive for protein expression? A correlation study on human circulating monocytes显示文摘在学习 mRNA 表示的一个关键假设是它在蛋白质表示的预言是增进知识的。然而,仅仅有限的研究在酵母探索了 mRNA 蛋白质表示关联或人的纸巾和结果是相对不一致的。我们从 30 个无关的女人在刚孤立的人的传播单核白血球在 mRNA 蛋白质表情上执行了关联分析。为 71 基因的表示蛋白质被确定并且由结合的 2-D 电气泳动识别了集体 spectrometry。相应 mRNA 表达式被 Affymetrix 基因芯片确定。重要关联(r=0.235, P < 0.0001 ) 包括所有学习基因和所有样品为整个数据集被观察。关联在基因本体论的不同生物范畴变化了。例如,最高的关联以细胞的部件为细胞外的区域的基因被完成(r=0.643, P < 0.0001 ) 并且最低关联为规定的基因被获得(r=0.099, P=0.213 ) 以生物过程。在染色体,样品的一半证明为 71 基因的重要积极关联和重要关联在所有样品在平均 mRNA 和平均蛋白质表示层次之间被发现(r=0.296, P < 0.01 ) 。在学习组水平,然而,仅仅五学习基因越过所有样品有重要积极关联。我们的结果显示出在 mRNA 和蛋白质表示层次之间的全面积极关联。然而,中等、变化的关联建议那 mRNA 表情可能有时是有用的,但是远非当然在预言蛋白质表示层次完善。 | Yanfang Guo Peng Xiao Shufeng Lei Feiyan Deng Gary Guishan Xiao Yaozhong Liu Xiangding Chen Liming Li Shan Wu Yuan Chen Hui Jiang Lijun Tan Jingyun Xie Xuezhen Zhu Songping Liang Hongwen Deng | 2008 | Acta Biochimica et Biophysica Sinica2008，40，5： | 7 |
| 19 | Strength and deformation behaviors of bedded rock mass under bolt reinforcement显示文摘The mechanism of bolt support is an important topic in mining engineering and slope treatment. The artificial material and loading system were self-developed to study the influence of bedding cohesion and bolt number on the anchoring behavior of bedded rock mass. The results show that, both peak strength and elasticity modulus increase gradually with the increase of bedding cohesion and bolt number. The axial stress–strain curve of bedded rock mass under the reinforcement of bolts presents the features of strain-softening and secondary strengthening. Finally, anchoring behavior of bedded rock mass with different bolt numbers was simulated by using FLAC3 D numerical program and the results were compared with the experimental results. This study can provide certain bases to the stability control and support design of bedded rock mass in roadway. | Wenxin Zhu Hongwen Jing Lijun Yang Bing Pan Haijian Su | 2018 | International Journal of Mining Science and Technology2018，28，4： | 7 |
| 20 | Effects of key design parameters of tine furrow opener on soil seedbed properties显示文摘The structural parameters of tine furrow openers have significant effects on soil property of seed furrow in no-till planting,thereby affecting crop growth and yields.In order to analyze the effects of key parameters of tine furrow openers on soil properties(soil bulk density,soil water-stable aggregates(WSA),and soil disturbance)of the surface soil layer of 0-10 cm and surface straw disturbance,the tine furrow openers with different structural parameters,including cutting edge thickness,cutting edge curve,penetration clearance angle and rake angle,were designed and tested under no-till conditions.Orthogonal test and single factor test were performed to analyze the effects of different parameters.Results showed that the rake angle,cutting edge thickness and cutting edge curve had significant effects on cross-sectional area of furrow(Af)and disturbance of surface straw;the rake angle had a significant effect on soil bulk density.Soil types and operating depth had significant effects on soil disturbance caused by tine furrow openers.The concave type tine furrow opener produced the lowest soil disturbance and soil bulk density of seed furrow,the highest surface straw disturbance and the greatest content of WSA(>0.5 mm).With increasing rake angles of tine furrow opener,the width of seedbed(Wsb)and the Af decreased first and then increased,respectively,while the width of soil throw(Wst)and the height of ridge(Hr)increased.The Wsb and Af created by tine furrow opener with 60°rake angle were significantly lower than that with others,respectively.The tine furrow opener with rake angle ranged from 45°to 60°created the lowest soil bulk density.As the penetration clearance angle increased,the content of WSA(>0.5 mm)decreased,but the effect of penetration clearance angle on the content of WSA(<0.5 mm)was not significant.The cutting edge thickness(<2 mm)had no significant effects on soil properties of seedbed.This study could provide a reference for optimal design of the tine furrow opener to create more suitable seedbed environment,and promote the application of the light no-till planters. | Zhang Xiangcai Li Hongwen Du Ruicheng Ma Shaochun He Jin Wang Qingjie Chen Wanzhi Zheng Zhiqi Zhang Zhiqiang | 2016 | International Journal of Agricultural and Biological Engineering2016，9，3： | 7 |
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