在实施既心的过程中,不少企业在该由什么部门来编制物料清单(Bill of Materials,BOM)的问题上往往扯皮。产品研发部门往往认为BOM与他们无关,要他们来编只是额外增加的工作。那么,BOM对产品研发部门到底有没有用呢?“单层结构”的产品 ...在实施既心的过程中,不少企业在该由什么部门来编制物料清单(Bill of Materials,BOM)的问题上往往扯皮。产品研发部门往往认为BOM与他们无关,要他们来编只是额外增加的工作。那么,BOM对产品研发部门到底有没有用呢?“单层结构”的产品 任何一个产品都是由若干个“单层结构”组成的,由一个母件和从属于母件的一个或一个以上的子件组成。相对于设计图纸而言,母件指的是组装图上的装配件。展开更多
现在PDM(Product Date Management:产品数据管理)和ERP(Enterprise Resource Planning:企业资源规划)已广泛的应用在各个行业中,虽然它们在各自的领域都能发挥很好的作用。但是对于制造企业来说,只有将这两系统结合才能充分发挥作用。...现在PDM(Product Date Management:产品数据管理)和ERP(Enterprise Resource Planning:企业资源规划)已广泛的应用在各个行业中,虽然它们在各自的领域都能发挥很好的作用。但是对于制造企业来说,只有将这两系统结合才能充分发挥作用。而由于PDM系统与ERP系统的数据格式不同,造成了在两系统之间实现实施的信息交换的困难,因此提出一种基于固定XML模式表述BOM的中间数据格式的信息集成方式。展开更多
Calcium carbonate,which is widely employed as a filler added into the polymer matrix,has large numbers of applications owing to the excellent properties such as low cost,non-toxicity,high natural reserves and biocompa...Calcium carbonate,which is widely employed as a filler added into the polymer matrix,has large numbers of applications owing to the excellent properties such as low cost,non-toxicity,high natural reserves and biocompatibility.Nevertheless,in order to obtain the good filling effect,calcium carbonate needs to be surface modified by organic molecules so as to enhance the dispersion and compatibility within the composites.This review paper systematically introduces the theory,methods,and applications progress of calcium carbonate with surface modification.Additionally,the key factors that affect the properties of the composites as well as the current difficulties and challenges are highlighted.The current research progress and potential application prospects of calcium carbonate in the fields of plastics,rubber,paper,medicine and environmental protection are discussed as well.Generally,this review can provide valuable reference for the modification and comprehensive utilization of calcium carbonate.展开更多
The study investigated the response of Amaranth to irrigation depth and irrigation interval as well as poultry waste incorporation. A replicated 4 ×3 × 3 factorial arrangement with treatments consisting of p...The study investigated the response of Amaranth to irrigation depth and irrigation interval as well as poultry waste incorporation. A replicated 4 ×3 × 3 factorial arrangement with treatments consisting of percent organic matter incorporation （0%, 2%, 4% and 6% by weight）, irrigation interval （1, 3 and 5 days） and irrigation depth （4, 6 and 8 mm） was used for the experiment which was conducted in pots in a green house. The result of the experiment showed that percent organic matter incorporation, irrigation interval, and irrigation depth significantly （P 〈 0.05） affected the dry matter yield of the vegetable. However, only the percent organic matter incorporation and irrigation interval were significant （P 〈 0.05） in their effects on the plant height. The highest plant height of 12.03 cm occurred when 2% organic matter was incorporated into the soil while the lowest plant height of 9.04 cm occurred with 6% organic matter incorporation. The maximum plant yield （47.44 kg/ha） occurred when 2% poultry litter was incorporated into the soil while the lowest plant yield （31.57 kg/ha） occurred with the control experiment. Irrigation interval of three days as well as irrigation depth of 6 mm resulted in the highest plant height and maximum dry matter yield of the vegetable. From the result of the experiment, the factor combination of 2% organic matter incorporation with 6 mm irrigation depth applied at three days irrigation interval resulted in the highest plant height of 16.7 cm above ground surface and maximum yield of 67.8 kg/ha.展开更多
The little stiffness modulus, high voidage and long curing time has limited the use of CBEM＇s （cold bituminous emulsion mixtures） in road and highways to pavement experiencing low traffic. The aim of this study is ...The little stiffness modulus, high voidage and long curing time has limited the use of CBEM＇s （cold bituminous emulsion mixtures） in road and highways to pavement experiencing low traffic. The aim of this study is to improve the properties of gap graded CRA （cold rolled asphal0 containing OPC （ordinary portland cement） as filler by addition of a by-product material as an activator. OPC was added to the CRA as a replacement to the conventional mineral filler （0%-100%）, while LJMUA （Liverpool John Moores University Activator） was added as an additive in the range from 0%-3% by total mass of aggregate. Laboratory tests included stiffness modulus and uniaxial creep test to assess the mechanical properties. The results have shown a considerable improvement in the mechanical properties from the addition of LJMUA to the CRA containing OPC especially for the early life stiffness modulus that is the main disadvantage of the cold mixtures.展开更多
文摘在实施既心的过程中,不少企业在该由什么部门来编制物料清单(Bill of Materials,BOM)的问题上往往扯皮。产品研发部门往往认为BOM与他们无关,要他们来编只是额外增加的工作。那么,BOM对产品研发部门到底有没有用呢?“单层结构”的产品 任何一个产品都是由若干个“单层结构”组成的,由一个母件和从属于母件的一个或一个以上的子件组成。相对于设计图纸而言,母件指的是组装图上的装配件。
文摘现在PDM(Product Date Management:产品数据管理)和ERP(Enterprise Resource Planning:企业资源规划)已广泛的应用在各个行业中,虽然它们在各自的领域都能发挥很好的作用。但是对于制造企业来说,只有将这两系统结合才能充分发挥作用。而由于PDM系统与ERP系统的数据格式不同,造成了在两系统之间实现实施的信息交换的困难,因此提出一种基于固定XML模式表述BOM的中间数据格式的信息集成方式。
基金Project(AA18242008)supported by the Guangxi Science&Technology Major Project,ChinaProject(HZXYKFKT201904)supported by the Opening Project of Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization,China。
文摘Calcium carbonate,which is widely employed as a filler added into the polymer matrix,has large numbers of applications owing to the excellent properties such as low cost,non-toxicity,high natural reserves and biocompatibility.Nevertheless,in order to obtain the good filling effect,calcium carbonate needs to be surface modified by organic molecules so as to enhance the dispersion and compatibility within the composites.This review paper systematically introduces the theory,methods,and applications progress of calcium carbonate with surface modification.Additionally,the key factors that affect the properties of the composites as well as the current difficulties and challenges are highlighted.The current research progress and potential application prospects of calcium carbonate in the fields of plastics,rubber,paper,medicine and environmental protection are discussed as well.Generally,this review can provide valuable reference for the modification and comprehensive utilization of calcium carbonate.
文摘The study investigated the response of Amaranth to irrigation depth and irrigation interval as well as poultry waste incorporation. A replicated 4 ×3 × 3 factorial arrangement with treatments consisting of percent organic matter incorporation （0%, 2%, 4% and 6% by weight）, irrigation interval （1, 3 and 5 days） and irrigation depth （4, 6 and 8 mm） was used for the experiment which was conducted in pots in a green house. The result of the experiment showed that percent organic matter incorporation, irrigation interval, and irrigation depth significantly （P 〈 0.05） affected the dry matter yield of the vegetable. However, only the percent organic matter incorporation and irrigation interval were significant （P 〈 0.05） in their effects on the plant height. The highest plant height of 12.03 cm occurred when 2% organic matter was incorporated into the soil while the lowest plant height of 9.04 cm occurred with 6% organic matter incorporation. The maximum plant yield （47.44 kg/ha） occurred when 2% poultry litter was incorporated into the soil while the lowest plant yield （31.57 kg/ha） occurred with the control experiment. Irrigation interval of three days as well as irrigation depth of 6 mm resulted in the highest plant height and maximum dry matter yield of the vegetable. From the result of the experiment, the factor combination of 2% organic matter incorporation with 6 mm irrigation depth applied at three days irrigation interval resulted in the highest plant height of 16.7 cm above ground surface and maximum yield of 67.8 kg/ha.
文摘The little stiffness modulus, high voidage and long curing time has limited the use of CBEM＇s （cold bituminous emulsion mixtures） in road and highways to pavement experiencing low traffic. The aim of this study is to improve the properties of gap graded CRA （cold rolled asphal0 containing OPC （ordinary portland cement） as filler by addition of a by-product material as an activator. OPC was added to the CRA as a replacement to the conventional mineral filler （0%-100%）, while LJMUA （Liverpool John Moores University Activator） was added as an additive in the range from 0%-3% by total mass of aggregate. Laboratory tests included stiffness modulus and uniaxial creep test to assess the mechanical properties. The results have shown a considerable improvement in the mechanical properties from the addition of LJMUA to the CRA containing OPC especially for the early life stiffness modulus that is the main disadvantage of the cold mixtures.
