摘要：针对n维闭包腔函数优化问题,把单纯形自映射不动点算法与遗传算法结合进行求解.首先将解空间利用同胚映射转化为n维标准单纯形,然后对n维标准单纯形进行K2(m)剖分和相应的整数标号得到个体的承载单纯形顶点的标号信息,依据顶点信息和函数设计编码和遗传算子,当个体的承载单纯形是全标单纯形时,算法终止,得到优化问题的近似解.算例结果表明,改进后的算法在6代之内完成收敛,显示了极高的全局优化形态与计算效率.%The genetic algorithm was combined with the simplex self- mapping fixed point algorithm to solve the n - dimensional closure cavity function optimization problems. Solution space of the optimization problem would be transformed as n - dimensional standard simplex by homeomorphism mapping, then the vertex label information of the individual loading simplex of n - dimensional standard simplex could be calculated with K2 ( m ) triangulation and integer label, and the coding and genetic operators were designed by vertex label information and function. When the loading simplexes of individuals were transformed into the completely labeled simplexes, the algorithm would be terminated and the approximate solution of the optimization problem would be obtained. The results of a computing example showed that the improved algorithm converged in the 6th generation, which had high global optimization form and computing efficiency.
摘要：The attack resistant - time difference of arrival (AR - TDOA) was put forward by using grouping information method in the positioning process, with the selection standard of positioning reference that the unbiased estimation variance according to the error assumption. By comparing the TDOA localization algorithm with the SeRLoc safety localization algorithm on positioning error, computing cost and stability, the results show that the sequence of their positioning error is TDOA ＞ SeRLoc ＞ AR - TDOA under the same attack strength. The greater the number of anchor node is, the larger positioning errors of both TDOA localization algorithm and SeRLoc safety localization algorithm are, while the AR - TDOA algorithm could keep the positioning error within a smaller range. Accordingly the AR - TDOA algorithm can improve the stability of positioning with a little increase in computing complexity.%将信息分组的方法应用于定位过程中,以方差的无偏估计是否符合误差假设作为定位参照集选取依据,提出一种能抵抗轻量级攻击的AR-TDOA定位算法.将该算法与基于TDOA测距的定位算法和SeRLoc安全定位算法在定位误差、计算开销与稳定性方面进行比较.结果表明,相同攻击强度下三者定位误差大小顺序依次为TDOA＞SeRLoc＞AR-TDOA.虚假锚节点数量越大,基于TDOA测距和SeRLoc的定位误差也越大,而基于AR-TDOA算法的定位误差则能保持在较小程度内.因此在增加少量计算复杂度的情况下,AR-TDOA算法能够改善定位的稳定性.
摘要：By comparing the 2 types of the segment erector structure, the general lifting mechanism and the parallelogram mechanism, it is found that the parallelogram mechanism is superior to the general lifting mechanism in the spatial arrangement and structural performance. With the modeling analysis of the parallelogram lifting mechanism, the parallelogram lifting mechanism is optimized designed by use of MATLAB optimization toolbox. By comparing the force curves of the hydraulic cylinder before and after optimization,the result shows that the optimized force of hydroeylinder is smaller than that before optimization.%分析了管片拼装机垂直升降油缸举升机构和平行四边形举升机构的异同,得出采用平行四边形举升机构在空间的布置以及结构性能方面都优于采用垂直升降油缸举升机构.通过对管片拼装机的平行四边形举升机构进行建模分析,并采用MATLAB优化工具箱对平行四边形举升机构进行优化设计,对比优化前后液压油缸受力曲线,得出优化后的液压油缸受力明显小于优化前.
摘要：We mainly calculated the Rayleigh wave frequency dispersion curve of multilayered soil respectively, including two - layered and three - layered soil model, adopting thin - layer method and rapid scalar method. In addition, we have analyzed Rayleigh wave disperse property of multilayered media soil. It is found that thin layer method is superior to rapid scalar method in low frequency domain, while it has little difference between each other in high frequency domain.%采用两种假定的层状土介质模型,通过快速标量法和薄层刚度法分别计算Rayleigh波的频散曲线,包括两层介质和三层介质两种地基土模型,分析对比了层状介质土Rayleigh波的频散特性,发现在低频阶段薄层刚度法计算效果优于快速标量法,在高频区域二者差别不大.
摘要：横张法预应力混凝土属于后张有粘预应力混凝土结构,预应力钢筋张拉有别于常规后张法施工.本文利用ANSYS软件对横张预应力混凝土梁在张拉施工阶段的受力情况进行仿真模拟,研究粘结锚固区域和插销定位区域混凝土受力变形的规律,为横张预应力混凝土结构设计和施工提供参考.%The vertically tensioned prestressed concrete is a new construction technology. It is the stick post - tensioned prestressed concrete structures, but different from conventional post - tensioned prestressed in the construction details. The vertically tensioned prestressed concrete beams in the tension phase of the situation was simulated by software ANSYS. The laws of concrete regional deformation in both adhesive anchor position and bolt position were studied. The results can provide the reference for the design and eonstruction of vertically tensioned prestressed concrete.
摘要：研究了钙基膨润土和钠基膨润土对废水中铜离子的吸附特性.结果表明,钠基膨润土和钙基膨润土的吸附行为都依赖于溶液的pH值,初始离子浓度和吸附剂用量.在低pH值时主要是H+与Cu2+竞争吸附位.pH值在3到7时基本的吸附机制是离子交换的过程.在高pH值(＞8.3)时,在膨润土颗粒表面形成氢氧化铜的吸附或沉淀.随初始金属离子浓度的增加去除率降低,而吸附剂的单位吸附量迅速增加.Cu2+浓度为40mg/L时,钠基膨润土和钙基膨润土的去除率分别达98.4%和81.2%.钠基膨润土和钙基膨润土的最大吸附容量分别为26mg/g和12mg/g.%The effects of removal rate and adsorption capacity on different adsorption conditions were investigated. The results show that the adsorptions of both Na - bentonite and Ca - bentonite strongly depend on the pH, initial concentration and adsorbent amount. At lower pH values, the mechanisms that govern the adsorption behavior of bentonites are competition of the metal ions with the H+ . The basic mechanism is an ion exchange process while the pH values range from 3 to 7. At higher pH values ( more than 8.3), formation of copper hydroxyl species may result either participation to the adsorption or precipitation onto the bentonites. Increasing initial metal ion concentration led to the decrease of removal rate and increase of unit adsorption of adsorbent. While Cu2+ initial concentration is 40mg/L, Na - bentonite has the removal rate of 98.4％ for Cu2+ and Ca- bentonite has the removal rate of 81.2％, respectively. The maximum adsorption capacity of Na- bentonite for Cu2+ is 26 mg/g and Ca- bentonite is 12 mg/g.
摘要：Based on FE Analysis of six high - strength concrete columns confined by different intensity and different spacing spiral stirrup under axial pressure, the specimen stress - strain relationship curves and crack propagation roles were researched. Confining mechanism of spiral stirrup was discussed. And then the effect of the spacing and strength of stirrup were analyzed based on the numerical results. The results show that the bearing capacity and peak strain increase significantly with the stirrup ratio and stirrup strength increase.%通过对6根配置不同强度、不同箍筋间距的高强混凝土柱在轴向压力作用下进行非线性有限元数值模拟,研究了混凝土轴压柱应力-应变关系曲线和裂缝开展规律、箍筋约束混凝土的机理、箍筋间距和箍筋强度对混凝土轴压柱承载力的影响.结果表明:伴随着箍筋间距的加密和箍筋强度的提高,混凝土柱的承载力和峰值应变有着显著的提高.
摘要：本研究测定了平菇菌糠腐熟后的氮、磷、钾含量,提取了腐熟菌糠的水溶性和醇溶性物质以及腐殖质.用这些提取物对莴笋、玉米、茄子和黄瓜进行了苗期叶面喷施正交试验,其植物促长结果为:平菇腐熟菌糠含全氮0.21%、全磷0.95%(以P2O5计)、全钾0.62%(以K2O计);腐熟菌糠的水提物、乙醇提取物和腐殖质提取率分别为4.05%、0.31%和23.31%;作物苗期最大叶片的长度增量对喷施处理反应敏感,可在较短时间对不同活性物的促长效果做出评价;腐殖质的促长作用最大,对叶片长度的促进效果是商品叶面肥诺贝宁的1.48倍,是乙醇提取物的1.34倍,差异显著.水提物的作用略差于乙醇提取物,略好于诺贝宁,但差异都未达显著水平.%In the study, the contents of three major nutrient elements in decomposed SMS from Pleurotus mycelium production were determined. The aqueous extract (AE), ethanolic extract (EE) and humus were extracted from this kind SMS, and their growth - promoting effects on seedlings of lettuce, maize, eggplant and cucumber were evaluated by foliage spray in various concentrations in an orthogonal experiment. The main results were as follows:the total contents of nitrogen, phosphorus and potassium were 0.21％, 0. 95 ％ (P205 ％ ) and 0.62 ％ ( K20 ％ ) respectively. The extraction rates of AE, EE and humus were 4.05 ％, 0.31％ and 23.31％ respectively. The increment of maximum leaf length was sensitive to the stimulation of the extracts and could be taken as a simple index for evaluating growth - promoting effects of different extracts in a short experiment period. The growth - promoting effect of humus was 1.48 times that of Nuobeining, a commercial foliar fertilizer. The effect of AE was slightly better than that of Nuobeining and inferior slightly than that of EE, but the differences among them were not significant.
摘要：The nitrogen infiltration experiment was carried out indoors with the self- made device of the film hole infiltration to observe the distribution rules on nitrogen transportation and transformation under film hole irrigation. The total infiltration volume of film hole and nitrogen distribution in soil under different urea solution concentration were studied. The results show that the total infiltration volume increases with urea solution concentration. The urea solution concentration has little effect on the ammonium and nitric nitrogen distribution in soil profile, while obvious effect on their amount. The amount and the distribution of nitric nitrogen increase with the urea solution concentration.%为研究膜孔灌灌施条件下氮素运移转化分布规律,利用研制的膜孔点源入渗装置,在室内进行灌施条件下的氮素入渗试验,测试不同尿素肥液浓度下膜孔累积入渗量及土壤中氮素含量.结果表明:累积入渗量随灌施肥液浓度增大而增大;尿素肥液浓度对土壤中铵态氮及硝态氮含量在剖面分布影响较小,对其含量影响较大;转化生成的土壤铵态氮、硝态氮含量及土壤硝态氮分布范围随灌施肥液浓度增大而增大.
摘要：针对RED算法在网络拥塞控制中使得队列波动较大的缺点,提出了一种归一化最小均方(NLMS)算法,并研究了NLMS算法在主动队列管理中的具体实现.仿真实验通过对NLMS算法、RED算法、REM算法、LRC-RED算法性能的比较,表明NLMS算法具有较好的动静态性能,且能够提高队列稳定性,降低丢包率.%RED algorithm for network congestion control causes the shortcomings of the queue fluctuations,a normalized least mean square (NLMS) algorithm was proposed, and the NLMS algorithm in active queue management in the implementation was introduced. The performances of NLMS algorithm, RED algorithm,REM algorithm, and LRC - RED algorithm were compared by simulation experiments . The results show that the NLMS algorithm has good dynamic and static performance, and it can improve the stability of the queue and reduce the packet loss rate.
摘要：结合粒子群优化(PSO)算法快速的全局收敛性和蚁群优化(ACO)算法较强的寻优能力,提出了一种融合PSO算法和ACO算法的混合算法.首先利用PSO算法较强的全局搜索能力,产生各粒子的最优位置值;然后对ACO算法的蚂蚁总个数进行调整,在保证算法全局搜索能力的同时,避免陷入局部最优;最后利用改进的ACO算法对最优位置值做进一步优化.将该混合算法应用于轻钢结构优化设计中,建立优化设计模型.以轻钢门式框架为例,利用该模型进行优化分析,并与文献[11]中改进模拟退火算法的优化结果进行对比.结果表明,混合算法经过61次迭代后能够求出较好的全局最优解,合理可行.%Considering the rapid global convergence of the particle swarm optimization (PSO) algorithm and the strong optimization ability of the ant colony optimization (ACO) algorithm, the hybrid algorithm was put forward by combining with PSO algorithm and ACO algorithm. The optimal location values of the particles were generated by the strong global searching capability of the PSO algorithm. The total number of the ants was adjusted to ensure the global searching ability of the AC0 algorithm and avoid trapping in local optimum. With the modified ACO algorithm, the optimal location values were further optimized. The hybrid algorithm is used to the optimization design of the light steel structure, and the design model was established. For an example, the wrap - round frame with light steel was optimized. By comparing to the optimization of the modified simulated annealing algorithm in literature [9], the results showed that the hybrid algorithm which solved the global optimal solution after 61 iterations, was feasible,
摘要：针对孤立点检测算法的一些弊端和煤矿安全预警系统的实际情况,选择一个基于距离和孤立点检测算法对瓦斯浓度的异常数据进行处理,分析出设备异常数据、噪声数据和瓦斯突出孤立点数据,通过挖掘孤立点来发现真实的潜在的信息,保证安全预警的准确性.%Aimed to the shortages of algorithm and the complicated actuality of the warning system, the outliers detection of distance sum - based algorithms were used in the system of early warning of mine safety.The research analyzed the noisy data, the outliers based in the abnormal equipment and the abnormity data of the concentration of gas . It is showed that the model can find out the actual latent information by excavating outliers and the model could make sure the veracity of safety warning.
摘要：通过对广大南方乡村地区存在的空斗墙砌体结构进行相关动力检测,建立了不同工况的空斗墙砌体结构有限元模型,采用模态分析法对其结构响应进行定性判断,并运用反应谱分析法对其结构抗震性能进行评估分析.结果表明,相同烈度下空斗墙所受的平均剪应力约为同尺寸实砌墙的55%;空斗墙房屋的门窗洞口、纵横墙交接、楼板和墙体搭接、突出的楼梯间等部位是其抗震薄弱部位;虽然空斗墙结构形式较为复杂,但是采用圈梁构造柱的传统构造措施仍然可以提高其抗震性能.%On the base of the dynamic detection on the cavity wall in the large rural areas of South China,the different conditions of the cavity wall finite element model for masonry structures were established. The qualitative structural response was judged by the modal response analysis, and the seismic performance was researched by the response spectrum analysis. The results show that the average shear stress suffered by the empty bucket is 55 ％ of solid walls with the same size under the same intensity. The door and window openings, the vertical and horizontal transfer of the wall, the floor and wall overlap and the projecting stairwell are the weak parts of empty bucket against the earthquake, while the traditional structural measures, such as, beam, pillar, are useful to improve the seismic performance though the cavity wall structure is complicated.
摘要：通过对轴向流动中粘弹性圆柱体微单元的受力分析,运用D'Alembert原理建立了其运动微分方程.然后引入Kelvin模型的微分算子,得到了轴向流动中Kelvin模型粘弹性圆柱体的运动微分方程,最后再分别引入无量纲量将Kelvin模型的微分方程化为无量纲方程.%By the analysis of force - balance of cylinder element, the differential equation of viscoelastic cylinder is derived based on the D Alembert, s principle. And the operators of Kelvin model solid model are introduced into the differential equation respectively, and then the differential equations of viscoelastic cylinder with Kelvin model solid model are established. The differential equations of Kelvin viscoelastic cylinder are converted into dimensionless equations with introduction of dimensionless quantities.
摘要：将三角模糊数引入到网络计划的时参计算中,应用三角模糊数加法运算定理计算模糊最早时间,应用Minkowski模糊减法运算定理计算模糊最迟时间和模糊时差.将模糊分布理论与线性规划理论相结合,建立求解模糊时差的线性规划模型,以克服时差计算中可能出现的模糊数为负值或模糊分布为非凸模糊数等无意义问题.与基于分层线性规划理论及模糊时差修正理论的计算方法相比较,该模型得到的模糊时差始终为正值,模糊分布为凸模糊数,并且计算量小.%The triangular fuzzy number was introduced into the calculation of the network planning, then the fuzzy early time was calculated by the theorem of triangular fuzzy number addition, the fuzzy late time and float time were calculated by the Minkowski subtraction. The fuzzy linear programming calculation model is proposed by fuzzy distribution theory and linear programming theory to overcome the non - frivolous issues, such as the negative number of fuzzy, the no - convened fuzzy distribution. By comparing the model based on hierarchical linear programming and the correction theory, the calculation results of the theory model show that the float time of fuzzy is positive, the fuzzy distribution is convened and the computation is smaller.
摘要：采用FLAC3D有限差分软件,对预应力锚索复合土钉支护结构的开挖支护施工过程进行动态模拟,分析了基坑开挖过程中土体的变形特性,发现土体的水平位移随着开挖深度的增大而增大,但由于锚索的加入,对土体向坑内的倾斜有一定的限制作用.得出基坑水平位移变化曲线基本呈“鼓肚”形状,且土体最大水平位移模拟值和实测值相差0.75 mm,模拟值与实测值非常接近.%The finite difference model of FLAC3D was used to simulate the construction process of pres-tressed anchor composite soil nailing excavation dynamically, and then the deformation of soil in the process of foundation pit excavation was analyzed. The results show that the horizontal displacement of soil increases with the depth of excavation, and the inclination of soil mass to the pit is restricted as the result of the entrance of the anchor. The horizontal displacement curve of pit was "bulging", and the simulation and measured values are much closed with only 0.75 mm.
摘要：通过正交试验研究了溶解氧(DO)、污泥浓度(MLSS)、污泥回流比(R)对改良型氧化沟脱氮除磷效果的影响.极差分析结果表明,影响CODCr、TN、TP去除率各因素的重要性顺序分别为:DO＞ MLSS＞R、DO＞ R＞ MLSS、MLSS＞ R＞ DO.方差分析结果表明,DO和MLSS对脱碳具有较显著的影响,DO对脱氮具有较显著的影响,MLSS、R对除磷具有较显著的影响.改良型氧化沟脱氮除磷的最佳运行工况为氧化沟缺氧区DO=0.3～0.5 mg/L、好氧区DO=2.0～ 2.5 mg/L,MLSS=5 000 mg/L,污泥回流比R=65％.%The effects of dissolved oxygen (DO), mixed liquid suspended solids (MLSS) and sludge return ratio (R) on nitrogen and phosphorus removal of improved oxidation ditch were studied through orthogonal experimental. The results of range analysis show that the importance sequences of the factors influencing the removal of CODCr, TN, TP are DO>MLSS >R, DO> R> MLSS, MLSS> R> DO, respectively. The results of variance analysis show that, DO and MLSS have significant influence on decarburization, and DO also has significant influence on nitrogen removal, MLSS and R have significant influence on phosphorus removal. In the end, it is obtained that, the best operating conditions of improved oxidation ditch for nitrogen and phosphorus removal is that the concentration of anoxic zone and aerobic zone of improved oxidation ditch was 0.3 to 0.5mg/L and 2.0~ 2.5mg/L,MLSS is 5000mg/L,sludge return ratio R is 65% .
摘要：Hie first three inherent frequencies and the main vibration mode parameters of the main drive system were obtained by building numerical model with MATLAB to research the vibration of the F3 rolling mill in production of CSP in Handan Iron and Steel Group Co. Ltd, and the inherent frequency which causes the main drive system resonance is determined by combining field test data. The results show that the third - order system frequency is close to the vibration frequency of the curved gear coupling between the reducer and the gear block by the on - the - spot test, and the gap of the curved gear coupling has a great impact on torsional vibration of system. Therefore, it has an important significance to reduce the curved gear coupling gap for inhibits abnormal vibration of rolling mill.%针对邯钢CSP轧机的F3精机在生产中产生的振动问题,利用MATLAB软件对F3轧机主传动系统进行数值模拟,得到主传动系统的前三阶固有频率和主振型的参数,结合现场测试数据,确定了引起主传动系统共振的固有频率,结果表明系统的第3阶频率与现场测试的减速机与齿轮座之间的弧形齿联轴器的振动频率相近,弧形齿联轴器的间隙对系统的扭振产生具有很大的影响,因此减小弧形齿联轴器的间隙对抑制轧机的异常振动有重要意义.
摘要：研究了一类具有连续变量的高阶中立型时滞差分方程△d(x(t)+q(t)x(t-τ))+p(t)f(x(t一δ(t))) =0的渐近性.在{x(t)}是方程的有界非振动解的假设下,通过变换引理中的三个条件,得到limx(t)=0或t→∞时,{x(t)}收敛于某有限数值,从而认为该方程具有渐近性.%The asymptotic behavior of higher order neutral difference equations with continuous arguments △d{x(t) + q(t)x(t - t)) + p(t)f(x(t- 8(t))) =0 was studied. It showed that the formula was asymptotic in that the { x (t) } converge to a certain finite value when lim x (t) = 0 or t→∞ by transform-ing the three conditions in Lemma to get the asymptotic equation under the assumption of non - oscillatorysolution.
摘要：The experiment of strength and carbonation depth were compared respectively with the ratio of 0% 、10%、120%、30% of fly ash(FA) and the same ratio of grout volume, to research the influence of the content of FA to the mortar. The result shows that with the certain water - binder ratio (W/C), the fluidity of cement mortar does not significantly reduce when FA increases; the strength of mortar with FA decreases with the increase of the FA in the early stage while it catches up with gradually and surpass that of mortar without FA; the carbonation depth of cement mortar increases with the increase of the amount of FA, and exposure time.%为了研究粉煤灰掺量对砂浆性能的影响,采用相同浆体体积比,分别以0％、10％、20％和30％的粉煤灰掺量配制砂浆,进行强度和碳化深度对比试验.结果表明,当水胶比一定时,随粉煤灰掺量的增加,砂浆的流动性不会明显降低；早期掺粉煤灰的水泥砂浆的强度会随着粉煤灰掺量的增加而降低,但其后期强度随着龄期的增长会逐渐提高并超过未掺粉煤灰的砂浆的强度；随着粉煤灰掺入量的增加,水胶比的增大以及暴露时间的增长,砂浆的碳化深度呈逐渐增加的趋势.
摘要：The structural ore - controlling regularities in mid - segment of Yishu River fault zone was summarized according to the attitude of stratum, the lithology and the tectonic joint in the field survey, and the microscopically observation, the sample test analysis. The wield tectonic theory was used to research the mineralization background. The metallogeny of gold deposits there can be merotomized two stages which is inheritance relationship between the basement of ductile shear belt and the fault zone. The gold deposit is not occurrented in the ductile shear belt, and the ductile shear belt acts as the main ore - controlling structure and control the attitude of ore deposit. The secondary structure controls the spread and extends of the ore deposit. The ore deposit is located in the stress concentration belt, which is fierce and superposed tectonic activity area. The ductile shear belt ore - controlling regularity is that the gold controlled gradient -like in vertical direction. The ore - controlling structure which derivatives from the Yishu River fault zone shows ductility - transition - brittle evolution rules (geocyclic) from east to west, and the structure combination configuration shows like a fall "N". Associated structure shows associated geocyclic and constitute law level tectonic association.%通过对沂沭断裂带中段地层产状、岩性、构造节理的野外勘察,室内镜下观察鉴定和样品测试分析,运用最新的大地构造理论对该区成矿背景综合研究,总结该区金矿构造控矿规律.本区金矿的生成具有韧性剪切带的双阶段控金性.其基底韧性剪切带与断裂带属于继承关系.韧性剪切带中并不赋存金矿,而是作为控矿构造,控制矿床的产出状态,而次级构造控制矿床的分布和延伸.矿床主要分布于应力集中构造活动强烈的区域.韧性剪切带控制金矿的规律在于垂向上控制金矿的梯度性.沂沭断裂派生的控矿构造形迹在区域上由西而东表现为韧性-脆韧性-脆性的演化规律(旋回)和倒N字型断裂组合形态,在其伴生的次级断裂带之间也存在有次级旋回,并构成低级序构造组合图像.
摘要：通过野外观察、薄片鉴定、扫描电镜、阴极发光和物性等资料分析,对南祁连盆地下日哈坳陷二叠系碎屑岩储层的岩石学特征、成岩作用过程进行研究.研究结果表明:该区碎屑岩主要由石英砂岩、长石石英砂岩和长石砂岩组成,主要成岩作用类型有压实作用、胶结作用、交代作用和溶蚀作用,成岩演化阶段已达到中成岩阶段A期及中成岩阶段B期.%Based on researches by means of the field observation, ordinary thin sections, scanning electron microscope and reservoir property analysis, the authors studied the petrologic and diagenetic characteristics of the Permian clastic rock reservoirs of Xiariha depression in South Qilian basin, and the result shows that clastic rock in this area are mainly composed of quartz sandstone, feldspar quartz sandstone and the feldspar sandstone and have mainly experienced such actions as compaction, cementation, metasomatism and corrosion, with the evolution reaching the middle diagenetic stage A and the middle diagenetic stage B.
摘要：Xinjiang is rich in coal resources, and their mainly coal - bearing strata are Badaowan and Xish-anyao Formation of Early - Middle Jurassic. To be controlled by geological structure, coal accumulation occurred mainly in the interior of the structural basins. Coal - bearing structures are often syncline and mono-clinic instructural basins. Tectonic deformation of main coal - bearing basins is weak, and has a favorable mining conditions. There are mainly low - rank bituminous coals , followed in middle and high - bituminous coal. The coal type are mainly in the long flame coal, non - caking coal, weakly caking coal and so on. Iithotypes are mainly durain and fusain , followed by a bright coal. Macroscopic type mainly consist of dull coal, semi - dull coal and semi - bright coal. Xinjiang posses good quality coal resources with high calorific value, low moisture content, low ash production rate, high volatile matter yield, low total sulfur content , phosphorus content and so on.%新疆主要含煤地层为早-中侏罗世的八道湾组和西山窑组,陆相聚煤环境.煤层赋存受地质构造控制,聚煤作用主要发生在构造盆地内部.向斜和单斜为主要的赋煤构造,主要含煤盆地后期构造变形微弱,开采条件优越.以低阶烟煤为主,其次是中、高阶烟煤.煤类主要以长焰煤、不粘煤、弱粘煤为主；宏观煤岩组分以暗煤、丝炭为主,其次是亮煤.宏观煤岩类型依次为暗淡煤、半暗煤、半亮煤,光亮煤较少.煤层具有发热量高、水分含量低、灰分产率低、挥发分产率高、全硫含量低和低磷等特点.
摘要：通过对供应链风险影响因素的分析建立了供应链风险预警指标体系,利用BP神经网络的自学习特性,反复修正模型的权值,不断减小系统误差,使系统的误差达到该模型要求的精度；然后根据网络输出结果,对网络各层的连接权值进行分析,对比连接权值的大小,找出产生供应链风险的关键风险因素.以河北省28条供应链为例,运用其中25组样本数据对该风险预警系统进行训练,另外3组数据进行测试,结果表明本模型对供应链风险预测的精度达到90％以上,通过网络权值分析可以找到更加切合实际的关键风险因素.%The supply chain risk forewarning index system was established by analyzing the influencing factors of supply chain risk, and the error of the system was decreased to the required accuracy by correcting the weights of model with BP neural network self- learning repeatedly. According to the output of the model, the key risk factors which produced supply chain risk could be found out by contrasting the weight of each layer. 28 typical supply chains in Hebei Province were taken as example, 25 of which were used to train the risk early - warning system, and the others to test. The result shows that the supply chain risk forewarning index system can achieve 90% above of prediction accuracy and find more practical key risk factors through the network weights analysis.
摘要：When producing Flash MTV, many Flash learners often come across the problem of lyrics unsyn-chronized with sound, in addition to making efforts in keeping lyrics content with beautiful scenes. Based on the production experience of two original Flash MTV works - White Fox and Advancing Together With My Motherland and Contributing My Youth, which awarded in provincial animation competition, the writer puts forward several solutions to solve the problem, including general synchronous method, trough observation method and program method.%很多Flash学习者在制作Flash MTV时,除了需要做到歌词与场景内容美妙融合外,时常还会遇到声音与歌词很难精确同步的烦琐难题,以参加省级动漫大赛获奖的原创《白狐》、《我与祖国共奋进,我为崛起献青春》等Flash MTV作品的制作经验,得出解决这个难题的几种巧妙的方法:同步的一般方法、观波谷方法和编程方法.
摘要：为了能够在住宅建筑的设计阶段了解阳台设计方案对于室内物理环境的影响,利用ECOTECT软件对住宅建筑内部空间进行了照度和热环境模拟,对比分析了不同阳台设计方案下,室内采光系数、室内24h逐时温度变化和室内24h逐时得失热量变化.结果表明,利用ECOTECT软件可以直观地模拟多种阳台形式对于室内光热环境的影响,能够为阳台方案的选择提供参考.%The light illuminance and thermal environment of the internal space were simulated with the software of ECOTECT to acquire the influence of the balcony design to the indoor physical environment in the design stage of the residential buildings. Then the indoor lighting coefficients, the change of indoor temperature and heat hourly in the different design scheme were compared. The results show that the software of ECOTECT can be used to simulate the influence of the balcony light and heat on the indoor environment, which provide a good reference to the balcony design.
摘要：在石林天时居产权式酒店项目的前期分析中采用GIS技术,利用场地的等高线地形图快速建立所规划区域的等高线数字模型,时场地的高程、坡度、坡向、通视性、剖面、径流、山体投影等进行分析,从而使分析建立在全面直观的空间模型分析之上,增进了对该项目规划决策的理解以及设计前期场地分析的科学合理性,快速准确地获取所需要的数据,以此指导之后的规划设计工作.%TIAN SHLFU property type hotel project is located in stone forest area of Kunming. The digital model can be obtained combining with the contour map about the planning area by the GIS in the early stages of the project, which can be used to analysis the elevation, slope, aspect of slope, view shed, cut and fill of the site,hill shade and build the hydrology modeling about the site etc. All above make the analysis carry out in condition of comprehensive intuitive space model, which enhance the understanding of the project in planning decision and guarantee the analysis before design with a scientific rationality attitude. This method can get accurately data and guide effectively the next work about the project' s planning and design.
摘要：A response of around surrounding to an adjacent deep foundation pit safety risk fuzzy synthetic evaluation model was established by according to the basic principle of fuzzy math. Based on the monitoring data of the deep foundation pit, the monitoring data was evaluated quantitatively by using the method of fuzzy synthetic evaluation, and then safety grades of foundation can be determined. The result proves that the method can reflect the risk condition of deep foundation pit and reduce the errors caused by subjective judgment. The assessment makes the evaluation results accurate and could guarantee the development of the project.%本文基于模糊数学理论,建立深基坑施工对周围环境影响的模糊综合评判模型,对基坑工程的安全性进行评价.以基坑开挖过程中的监测资料为依据,运用模糊综合评价法对监测数据进行量化分析,给基坑周边环境评定综合安全等级.实践证明该方法能够较真实地反映深基坑的风险状况,减少主观判断带来的差异,使评价结果更加精确,为工程的顺利开展提供可靠的保证.
摘要：Trace elements have some special geochemical properties, such as stable chemical properties, high homogenization degree, etc. There are four main coal seams (No.3upper, No.3 lower, No. 16, No. 17 coal seam) in Daizhuang coalmine. From No.3 upper coal seam to No. 17 coal seam, the trace elements in the coal seam increase gradually. The influencing factors on the trace elements' distribution and origin of enrichment such as the coal forming plant, the properties of terrigenous mother rock, environment of sedimentation and others are analyzed; the distribution laws and distribution conditions of trace elements in different coal seams are accurate controlled.%微量元素具有一些特殊的地球化学性能,如化学性质稳定、均一化程度高等特点.岱庄煤矿主采煤层共四层(3上、3下、16、17煤层),微量元素含量从3上煤层到17煤层逐渐增大.通过对岱庄煤矿煤中微量元素成煤植物、陆源区母岩性质、沉积环境以及其它一些影响因素进行分析,总结岱庄煤矿煤中微量元素的分布和富集成因,能够更加准确掌握不同煤层中微量元素的赋存规律及赋存状态.
摘要：运用PRO/E对装载机工作装置进行建模,将模型导入PATRAN中,运用NASTRAN进行模态分析,得到装载机工作装置的各阶模态振型.将各阶模态频率与激励频率对比,如果计算频率在激励安全系数范围内,可以调整相应构件的刚度使激振频率避开固有频率,避免发生共振.此分析为装载机工作装置的设计开发奠定了方向,从而有效的减少了试验成本.%The model of the loader work device was made with PROE and imported into the PATRAN. Then the model was analyzed with the NASTRAN and the vibration mode of the different frequencies was obtained. The frequencies were compared to the excitation frequency; the stiffness of the institution should be adjusted against the natural frequency to avoid the resonance, if those frequencies were in the range of the force safety factor. The research laid the foundation of loader work device design, which cut down the cost of production effectively.
