Multi-objective reconfigurable production line scheduling for smart home appliances

In a typical discrete manufacturing process,a new type of reconfigurable production line is introduced,which aims to help small-and mid-size enterprises to improve machine utilization and reduce production cost.In order to effectively handle the production scheduling problem for the manufacturing system,an improved multi-objective particle swarm optimization algorithm based on Brownian motion(MOPSO-BM)is proposed.Since the existing MOPSO algorithms are easily stuck in the local optimum,the global search ability of the proposed method is enhanced based on the random motion mechanism of the BM.To further strengthen the global search capacity,a strategy of fitting the inertia weight with the piecewise Gaussian cumulative distribution function(GCDF)is included,which helps to maintain an excellent convergence rate of the algorithm.Based on the commonly used indicators generational distance(GD)and hypervolume(HV),we compare the MOPSO-BM with several other latest algorithms on the benchmark functions,and it shows a better overall performance.Furthermore,for a real reconfigurable production line of smart home appliances,three algorithms,namely non-dominated sorting genetic algorithm-II(NSGA-II),decomposition-based MOPSO(dMOPSO)and MOPSO-BM,are applied to tackle the scheduling problem.It is demonstrated that MOPSO-BM outperforms the others in terms of convergence rate and quality of solutions.

Optimized electrochemical ammonia production:From metal-N_(2)/NO_(x) batteries to aqueous metal-NO_(x)^(–) batteries

Ammonia plays a crucial role in contemporary society,impacting medicine,agriculture,and the chemical industry.The conventional industrial synthesis of NH_(3) through the Haber-Bosch technique,carried out under severe reaction conditions,leads to substantial energy consumption and environmental pollution.It is thus imperative for NH_(3) synthesis methods to be investigated under more favorable conditions.Synthesis of ammonia by electrocatalysis can effectively reduce the environmental damage and other urgent problems,which is a promising solution.Metal-nitrogen series batteries(M-N batteries),such as metal-nitrogen gas batteries,metal-nitrogen oxide batteries and metal-oxynitride batteries have been regarded recently as an exemplar of concurrent NH_(3) synthesis and energy production.Nonetheless,the large-scale application of these batteries is still limited by numerous challenges are currently existing in building high-efficiency M-N batteries,including poor Faradic efficiency and low NH_(3) yield.Therefore,a comprehensive overview of M-N batteries is offered,specifically focusing on advanced strategies for designing highly efficient cathode catalysts in anticipation of future developments.The metal anodes,cathodic electro-reduction reactions,and design principles are encompassed in the discussion,offering detailed insights to enhance understanding.Mechanisms,feasibility analyses,technoeconomic assessments,device combinations,and comparative evaluations are delved into in the review,contributing to a thorough comprehension of diverse systems and their application potential.Perspectives and opportunities for future research directions are also delineated.

A system-wide approach to minimize the operational cost of bench production in open-cast mining operations

The production cycle of open-cast coal mines generally in eludes drilling, blasting, loading, hauling and coal preparation activities. Individual optimization of these activities does not mean that the whole system is optimized. This paper proposes a cost model considering all activities in mining cycle and system-wide approach to minimize the total mining cost of bench production. Since the fragmentation size and blast-hole diameter are linked to all activities of mining system, they are considered as decision variables in the problem form ul at io n. The operatio n costs are then minimized by using the evolutionary algorithm. Moreover, the impact of the change in the explosive price, and the hourly unit cost of equipment on total mining cost is quantified by sensitivity analysis. A case study is implemented to demonstrate the developed model.

Nε-(carboxymethyl)lysine promotes lipid uptake of macrophage via cluster of differentiation 36 and receptor for advanced glycation end products

BACKGROUND Advanced glycation end products(AGEs)are diabetic metabolic toxic products that cannot be ignored.Nε-(carboxymethyl)lysine(CML),a component of AGEs,could increase macrophage lipid uptake,promote foam cell formation,and thereby accelerate atherosclerosis.The receptor for AGEs(RAGE)and cluster of differentiation 36(CD36)were the receptors of CML.However,it is still unknown whether RAGE and CD36 play key roles in CML-promoted lipid uptake.AIM Our study aimed to explore the role of RAGE and CD36 in CML-induced macrophage lipid uptake.METHODS In this study,we examined the effect of CML on lipid uptake by Raw264.7 macrophages.After adding 10 mmol/L CML,the lipid accumulation in macrophages was confirmed by oil red O staining.Expression changes of CD36 and RAGE were detected with immunoblotting and quantitative real-time polymerase chain reaction.The interaction between CML with CD36 and RAGE was verified by immunoprecipitation.We synthesized a novel N-succinimidyl-4-18Ffluorobenzoate-CML radioactive probe.Radioactive receptor-ligand binding assays were performed to test the binding affinity between CML with CD36 and RAGE.The effects of blocking CD36 or RAGE on CML-promoting lipid uptake were also detected.RESULTS The study revealed that CML significantly promoted lipid uptake by macrophages.Immunoprecipitation and radioactive receptor-ligand binding assays indicated that CML could specifically bind to both CD36 and RAGE.CML had a higher affinity for CD36 than RAGE.ARG82,ASN71,and THR70 were the potential interacting amino acids that CD36 binds to CML Anti-CD36 and anti-RAGE could block the uptake of CML by macrophages.The lipid uptake promotion effect of CML was significantly attenuated after blocking CD36 or RAGE.CONCLUSION Our results suggest that the binding of CML with CD36 and RAGE promotes macrophage lipid uptake.

Integrated management system of agro-fishery products based on QR-code

Recently,both the importance and awareness relating to food safety relating to agrochemicals,chemical fertilizers,the pollution of ecosystem and unwholesome foods are growing rapidly.For the same reason,the purchaser's curiosity increases to know about the production process which can be accomplished by production traceability system.The traceability system can store and superintend the specific attribute information about products regarding the productive centre,producer and production finish data.The products undergo various circulation processes and they are being managed by individually constructed traceability system.Thus,it is difficult for the producer and the consumer to guarantee the safety from transpirable issues about the falsification of production traceability because the traceability information can be re-produced by forging through various ways.So in this paper,we proposed a system for integrated management of agro-fishery products based on quick response code(QR-code)for forgery prevention which may help to solve these issues.The proposed system makes QR-code using production information provided by producer.And then it is provided to the distributor and the consumer through integrated service model using the QR-code.Therefore,this system make sure to provide the same production traceability about the products to the distributor and the consumer and always keeps both updated with the same information.

Application of vertically integrated sampling approach to study of new production via ^(234)Th -^(238)U disequilibria

The spatial and temporal distributions of new production vary largely in different sea areas. To understand the level of new production in the sea area studied better, an estimate of new production must be obtained in large spatial and temporal scales. The ~234Th/ ~238U disequilibrium is an effective method for the study of new production. Two sampling strategies, vertically integrated sampling ap proach based on trapezoidal integration principle and discrete layer sampling approach, were compared in the studies of the xiamen Bay and the northern South China Sea. The scavenging fluxes and removal fluxes of ~234Th and the residence times for dissolved and particulate ~234Th were calculated. The coinci dent results from two Sampling approach suggest that vertically integrated sampling approach is not only effective and reliable, but also significantly reduces the number and volume of samples. It allows us to study new production by ba ^(234)Th - ^(238)U disequilibria in large spatial scale.

The Practical Dilemma and Optimization Path of Smart Home-Based Care in Hengshui City, China

Smart home-based care for elderly is the product of the “Internet+” era, along with the information technology and the growing needs for a better elderly life. In order to understand the influencing factors of smart home care in Hengshui city, this paper selected 183 elderly people through a questionnaire survey. The conclusion of the study showed that education level, economic status, sleep quality and residence conditions are the influencing factors affecting the needs of smart home care of the elderly (p 0.05). Smart home care products for the elderly have a high willingness to use them, especially in terms of life care, medical services and emotional talk, but the compliance still needs to be improved. Development countermeasures suitable for Hengshui city can be put forward through the publicity of smart elderly care services, promoting the construction of demand-oriented big data, and promoting the participation of various forces.

Based on the Value of the Smart Home and the Investigation of Product Interaction Design

The real smart home is not merely moving from the original remote control and panel to a smart phone app to make products intelligent or to control consumer electronics in one way,but is built based on interconnection and automation.The smart home of the future can not only achieve integrated control,remote control,scene control,timing control,intelligent linkage and security measures,but also support“selflearning”and“self-optimization”,and will“manual”and“automatic”control.This paper aims to change the value of smart home products into“active”.Therefore,this paper relies on the realization of the value of smart home products,describes the principles of smart home products and product interaction design,analyzes the needs of the target users,and proposes a product design scheme for reference by relevant personnel.

THE BROAD-BAND CCD PHOTOMETRY AND DUST PRODUCTION RATES OF COMET HALE-BOPP

Based upon broad-band CCD observation data of comet Hale-Bopp obtained by a 60cm telescope at Xinglong Station of Beijing Astronomical Observatory during March-August, 1996, the photometric results of comet Hale-Bopp are reported. Using the photometric results, the dust production rate, radius and mass of nucleus of comet Hale-Bopp are estimated as follows: dM/dt～1.5×10 5 kgs -1, R n～35.5km, and M n～5.65×10 16kg.

Study on In-vitro Production Technology of Embryos from Young Dorper Sheep

This study was conducted to investigate the in-vitro production technology of embryos from young Dorper sheep, so as to provide technical support for the utilization of ovarian follicles in young Dorper sheep. Tests were conducted from the induction of Dorper sheep of 4 to 8 weeks old using follicle stimulating hormone(FSH) and pregnant horse serum(PMSG), collection of oocytes, in-vitro oocyte maturation-fertilization-zygote cultivation and 2-4-cell-stage fertilized ovum transfer. The results showed that 585 oocytes were collected from eight Dorper sheep at the age of 4 and 8 weeks, with an average of 73.13 oocytes/sheep. 346 of the 2-4-cell-stage fertilized eggs were obtained, whose cleavage rate was 59.15%. 77 in-vitro fertilized eggs at 2-4-cell stage were transplanted into 17 recipient sheep, seven of which were pregnant and gave birth to 13 "test-tube sheep" with a conception rate of 41.18%. It is indicated that the hormone induction technique, in-vitro oocyte maturation-fertilization-zygote cultivation technique and 2-4-cell-stage fertilized ovum transfer technique used in this study can serve as effective techniques for the in-vitro production of embryos from Dorper sheep of 4-8 weeks old.

Start of Production at the Ya 13-1 Gas Field in South China Sea

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Home Textile Trends 2011-2012

During the China International Trade Fair for Home textiles and Accessories(Intertextile Shanghai Home textile),held from Aug.24th to 26 th,2010,in the city of Shanghai,the Intertextile Direction Trend Committee released the latest home textile trends for Autumn and Winter 2011 and 2012.

智能设计工具与KE-AHP方法协同设计实践研究:以家庭种植产品设计为例

目的旨在对设计输入进行深入研究,以应对在使用Midjourney辅助设计工具时产生的带有随机性的设计产出,从而增强智能辅助设计的科学性与可信度。方法以家庭种植产品设计实践为例,通过感性工学(KE)和层次分析法(AHP)总结量化用户的感性需求和功能需求,为“设计输入”构建系统、科学的研究框架。最后对其可行性与成效性进行验证。结果通过KE和AHP方法的应用,成功降低了使用Midjourney生图的随机性,设计产出整体上也更加接近用户的需求,同时也暴露了智能设计工具在设计细节处理方面不恰当等问题。结论KE和AHP方法规范了Midjourney工具的设计输入,提高了设计产出的可控性和合理性,为Midjourney应用于设计产出提供了更为坚实的理论基础和科学依据。同时人工智能设计工具的出现也对设计领域与设计师的未来发展提出了新的要求与建议。

集成AHP-AD-TOPSIS的适老化居家护理床设计研究

目标为增加家具产品适老化程度,提升老年用户使用护理床满意度,集成AHP-AD-TOPSIS模型构建出一种适老化居家护理床方法。方法首先,通过多渠道用户调研方法获取22项用户需求,应用AHP法求解不同属性下用户需求权重,明确相对重要用户需求;其次,为匹配护理床研发生产中工程设计参数,依据AD公理设计中的独立性公理原则,将老年居家护理床的功能域至设计域进行映射,并通过设计矩阵求解判断设计合理性及最优解,明确企业量产工程技术参数,并根据其进行方案设计;最后,采用TOPSIS法对设计方案及样本进行决策计算及评估,客观评选最佳设计方案。结果集成AHP-AD-TOPSIS的居家护理床设计方法,可准确求解用户需求权重、科学转换设计参数、客观评价设计方案,并极大优化适老化居家护理床用户体验及满意度。结论为同类适老化居家产品设计研发提供参考,其也可为适老化居家产品研究提供学术范式及路径。

Sysmex SF-3000血液分析仪稀释液的研制与应用

目的 :为解决 Sysm ex SF- 30 0 0血液分析仪稀释液试剂国产化 ,比较自配稀释液与进口稀释液是否有差异。方法 :通过检测进口稀释液的主要参数 ,确定自配稀释液的配方。结果 :自配和进口稀释液理化指标一致 ;它们检测 2 0份抗凝静脉血标本 ,所得七项主要指标均数相近 ,经配对资料 t检验 ,P值均大于 0 .0 5 ,相关系数均大于 0 .98;而且自配试剂重复性、稳定性良好。结论 :自配 Sysmex SF- 30 0

汇率预期与贸易收支的实证研究--以我国家用视听类贸易为例

贸易与汇率关系理论难以对人民币升值背景下我国贸易顺差急剧扩大的现象给出令人信服的解释。本文利用凯恩斯主义的国际收支分析思路,结合我国人民币不能完全自由兑换和人民币汇率制度改革的现实,将汇率预期变量引入贸易收支模型,对主要家用视听产品的对外贸易进行实证分析,从一个新的视角研究预期人民币升值对我国贸易收支的影响。

从内部资源到外协合作--家居企业与独立设计师合作模式研究

通过研究国外成熟家居市场中家居企业与外部设计力量的合作模式,给予国内正在快速变化的家居市场和品牌以借鉴及启发。文章分析了国内外家居品牌与外部设计师建立合作的内在及外在原因,归纳出家居企业与外部设计师合作的常见模式,以及不同模式的优势劣势,并提出促成企业与外部设计师合作的社会利好因素的创造方式。国内家居社交化趋势及家居品牌的全面升级,将促使家居品牌从完全依赖内部设计资源转向借助外部设计力量,以提升企业的设计能力和增强企业的品牌活力。

基于失能老年人群洗浴困难的上门助浴设备设计

本研究聚焦于中国老龄化背景下失能老年人群的洗浴难题,运用设计思维方法深入探讨了失能及半失能人群和助浴师在洗浴过程中所面临的挑战与需求。针对现有洗浴服务的不足和安全隐患,本文提出了一种新型便携箱式助浴设备。该设备设计充分考虑了用户的尊严和心理需求,强调人性化、便携性与实用性,旨在为失能老人提供更加舒适和安全的洗浴体验,同时减轻助浴师的劳动负担,提出了人性化的设计方案。