重头策划的轻量化产品探索之路——顶端新闻主题报道新范式分析

随着信息传播技术的飞速演进和受众阅读习惯的 根本性转变,新闻报道正日益朝着轻量化方向迈进。在关键 时刻,推出精彩纷呈的策划报道已成为各大媒体竞相角逐的 焦点。作为主流媒体平台,顶端新闻在渠道传播上力求精准, 内容方向上追求创新,场景表达上注重生动,产品形态上则 持续突破,确保能够精准锁定目标受众,高效传递信息,同 时促进受众的深度参与。顶端新闻不断探索并开辟出一条独 具特色的轻量化产品报道路径,本文旨在对顶端新闻主题报 道新范式展开深入分析。

协同产品开发中的产品模型轻量化技术

针对网络环境下协同产品开发中复杂产品模型数据交换、远程传输困难等瓶颈问题,提出一种复杂产品模型数据轻量化算法.该算法基于非几何信息过滤,曲线、曲面简化,通用压缩算法数据压缩等步骤对初始产品模型进行简化.文中算法已应用于协同交互系统InteView2.0中.在相同逼近精度下,轻量化后的模型比原系统输出的VRML格式文件具有更高的压缩比.

企业产品创新保证要素及量化评价研究

产品创新是决定企业核心竞争力的关键,建立产品创新保证量化评体系对企业评价创新能力具有现实意义。本文通过分析产品创新与企业核心竞争力之间的关系,设计产品创新保证量化评价体系,使其成为实操性工具。研究表明:产品创新保证量化评价体系可以识别产品创新管理问题及薄弱环节,为企业进行产品创新保证工作提供评价工具,确定产品创新保证量化评价体系的薄弱环节及改进空间,进而提出改进的建议,可以成为制造型企业通用的产品创新保证量化评价工具,提升企业产品创新管理能力。

产品轻量化新技术体系的普惠价值

传统工业设计与制造中,为应对小概率事件及包容制造水平与质量缺陷,产品质量冗余层层叠加,进而造成产品轻量化的困境。开辟产品结构轻量化新路径,不仅在于新设计工具的应用与制造手段的创新,更在于新思维的构建与新科学技术体系的引领。“类生态活系统”与传统承载结构力学性能注重高强度、高刚性有所不同,更加重视结构几何形态形成自组织、分布自适应的应变能力。剔除质量冗余,赋予产品承载结构“类生态活系统”特性,可以大幅度减小尺寸、减少重量。以产品再设计为引领,以工艺、装备为基础,促进引领一个产业、一个行业,成建制“遍地开花”的新科学技术体系的形成与应用,为产品轻量化的设计与制造提供了新的思路。

国内量化产品分类及现状

量化投资起源于美国50年代,2000年随着计算机科学的进步得到了飞速发展,国内的量化投资也于2009年伴随着股指期货的推出预期,开始起步并迅速得到了蓬勃增长,截止2015年12月,有业绩可查询的量化产品共有1950只,预估规模近2000亿。虽统计为量化产品,但是产品特性及目前国内的现状各不相同。本文从国内目前主流的量化产品特征及现状进行分类阐述。

浅谈专用车产品轻量化设计

能源和环境保护的问题,是全球共同关注的话题,实现专用车产品的轻量化设计就成为了国家节能减排战略的紧迫需要,更是提高汽车行业核心能力的现实需求,是最为有效的节能手段,因此,轻量化设计无论是对传统的汽车还是新能源汽车,都有着共性的基础设计,本文将从专用车产品轻量化设计理念以及实现专用车产品轻量化的具体方法和措施上来进行阐述。

产品轻量化推动轻金属铸件市场发展

据中国铸造协会有关专家介绍，在汽车等产品轻量化总趋势的推动下，今后10年。我国轻金属铸件市场将会有大幅度的发展。

多源观测资料在冰雹监测预警中的应用

利用常规观测、气象卫星、双偏振雷达、风廓线雷达、地基GPS水汽等资料对2020年6月25日河北中部一次特大冰雹天气过程进行分析,探讨多源观测资料在冰雹监测预警中的应用。结果表明:受华北冷涡的影响,上冷下暖的不稳定层结为强对流的发生提供了有利的环流背景。在地面辐合线与地形抬升的作用下,强对流云团迅速生成并发展。超长生命史的超级单体风暴导致了本次大面积降雹,风暴中的冰雹粒子与其他相态粒子的双偏振特征具有明显的区别,因此可以通过双偏振雷达识别冰雹粒子。多源观测资料的定量化融合分析能提供更加精确的数据信息,从而为冰雹天气的监测预警提供更多的参考价值。

茶叶区域产量保险的设计研究

通过结合保险的应用价值,以及保险的作用特征,我们不难看出,如果能够将保险理论制度具体应用到整个茶叶产业的现代化建设过程中,其必然能为茶叶区域产量保险机制的实施应用提供重要支撑。本文拟从当前茶叶生产过程中保障机制建设的背景分析入手,结合农业产业要素中应用保险制度的价值意义,通过融入茶叶区域产量保险活动的设计机制,从而探究融入产量保险设计的茶叶产业生产价值。

Effects of Different Application Amounts of Potassium Fulvate on Yield and Quality of Tomato and Soil Physical and Chemical Properties

This study was conducted to study the optimum dosage of potassium ful- vate （PF） on greenhouse tomato, the effects of different amounts of PF on yield and quality of greenhouse tomato and soil physical and chemical properties were investigated by a field plot experiment. The results showed that the bottom applica- tion of PF increased tomato yield, plant dry matter weight and root dry matter weight by 14.0%, 14.4 and 50.6%, respectively; Vc and soluble sugar content of tomato increased by 1＆5% and 10.0%, respectively; and soil bulk density de- creased by 3.6%, and CEC increased by 5.0%. All the indexes increased with the increase of PF application amount, and reached the maximum value when the PF application rate was 4 500 kg/hm2. In consideration of the cost of fertilizer and all indexes, the optimum dosaqe of PF fertilizer was 4 500 kg/hm2.

企业要有“三品”在手——PCB企业的软实力(7)

文章概要地说明PCB企业掌握"三品"的重要性。企业掌握了"三品"就掌握了市场的"现在"和"未来",使企业永远处于良性循环的发展之中。

Effects of SPNE on Yield and Biochemical Quality of Hybrid Flowering Chinese Cabbage

Objective] The effects of SPNE on the yield and biochemical quality of flowering Chinese cabbage were investigated in this study. [Method] The special plant nutritional element （SPNE） was sprayed on the flowering Chinese cabbage plants after the beginning of harvesting. The effects of SPNE on the yield traits and biochemical quality traits of flowering Chinese cabbage were investigated in the un-conventional using period. [Results] The results showed the flowering stalk of flow-ering Chinese cabbage developed earlier and grew fasterly for the SPNE treatment;the diameter, length and weight of flowering stalk of SPNE-treated flowering Chi-nese cabbage were al higher than that of control. The SPNE treatment could not only increase yield, but also bring better biochemical quality. The protein, vitamin C and calcium contents, especial y the chlorophyl and sugar contents in the SPNE-treated flowering Chinese cabbage were al higher than that of control, making the SPNE-treated flowering Chinese cabbage taste better. [Conclusion] lt was indicated although sprayed after the beginning of harvesting, the SPNE had a certain effect on the flowering Chinese cabbage.

新闻的商品性与有偿新闻

新闻的商品性与有偿新闻不能混为一谈。新闻产品是为交换而生产的劳动产品,它具有价值和使用价值,商品性是新闻的本质属性。因此,在新闻事业的运行过程中,要严格遵守经济规律。而有偿新闻则是权钱交易,是一种新闻腐败现象,因此在新闻事业运行过程中,要以法的形式坚决予以杜绝。

Effects of DPC on Agronomic Traits and Economic Characters of Machine-Harvested Cotton in the Yellow River Valley of China and Chemical Control Techniques

[Objective] The aim was to investigate the effects of DPC chemical controlling technique on agronomic traits, yield and quality of machine-harvested cotton in the Yellow River Valley of China, and clarify the reasonable control period and the application amount of DPC. [Method] The new machine-harvested cotton variety Hengmian HD008 was used as the test material, and 3 different DPC treatments were set. [Result] DPC significantly reduced plant height and branch length, reduced branch angle and leaf area, so the rational control can effectively shape the ideal plant type of machine-harvested cotton. DPC had significant effects on yield and yield components, and the proper amount of DPC could increase the number of bolls during hot days, the number bolls in autumn and the total number of bolls. It increased the boll weight and seed index, but decreased lint percentage decreased, and proper amount of DPC could increase the yield. DPC significantly increased the specific breaking strength of fibers, and proper control could improve the uniformity of fibers, but other indexes had no significant influence. [Conclusion] According to the requirements of machine harvest to the agronomic traits of cotton and the growth characteristics of cotton plant, chemical control could begin after floral bud emergence in cotton about every 10 d, and the spraying amount can be controlled according to the growth amount of the main stem. The daily growth amount of plant height should be controlled at 1.5-1.8 cm, and the plant height should be within 75-90 cm.

Effects of Once Fenlong Cultivation on Soil Properties and Rice Yield and Quality for 7 Consecutive Years

[Objective] The objective of this study was to explore the long-term effect of Fenlong cultivation for one time. [Method] The physical and chemical properties of soil and rice yield and quality were investigated and determined by measuring the soil at the depth of 23 cm in the paddy field with Fenlong cultivation and 16 cm of control （conventional farming） for 7 years. [Result] Compared with the control, the average yield of early rice of the Fenlong cultivation increased by 1 972.5 kg/hm2 of the first year, an increase of 23.87%, and milled rice and protein increased by 15.95% and 14.61%, while the increase rates of organic matter, available nitrogen, available phosphorus and available potassium per hectare were 74.58%, 67.01%, 104.41% and 129.62%, respectively. In the 7th year after Fenlong cultivation, the yield increased by 234 kg/hm2 from the control, an increase of 3.21%, and milled rice and protein increased by 0.5% and 0.14%, while the increase rates of organic matter, available phosphorus and available potassium per hectare were 745.8%, 62.635 and 73.37%, respectively, and the increase rates of total nitrogen, total phosphorus and total potassium were 46.03%, 50.58% and 36.65%, respectively. During the 7 years after Fenlong cultivation, the yield increased by 3.21-23.87%, and its average net income per season increased by 1 843.61 Yuan/hm2 with a gain of 18.03%. [Conclusion] At the 7th year after Fenlong cultivation, the paddy field still had the furrow remain at a depth of 22 cm, which was 46.67% thicker than the traditional one. The yield and quality of paddy rice increased for 7 consecutive vears showed that Fenlon.q cultivation was highly feasible for paddy field.

Issues in Freeze Drying of Aqueous Solutions

Freeze drying or lyophilization of aqueous solutions is widely used in pharmaceutical industry. The in-creased importance Of the process is gaining a worldwide interest of research. A growing body of literature has demonstrated that the scientific approach can result in improved product quality with minimum trial and error em-piricism. Formulation and process development need a systematical understanding of the physical chemistry of freezing and freeze drying, material science and mechanisms of heat and mass transfer. This paper presents an overview on freeze ding of aqueous solutions based on publications in the past few decades. The important issuesof the process are analyzed.

Specifications and Quality of Lube Oil Base Stocks in China

The Chinese standard Q/SHR001-95 for base stocks is compared with the APIspecifications. The viscosity-temperature characteristics of base stock required by lube oil in useand market demand on oil quality are analyzed. The quality indicators of base stocks in China andother countries are compared. A new classification of base stocks in response to the requirements ofmodern lube oil is proposed and the research on new technology to produce premium base stocksmeeting API specification is recommended on the basis of current base stock processing technology.

Preparation of Alumina Abrasion-Resistant Ceramic Grinding Ball with Spent FCC Equilibrium Catalyst

The chemical composition, structure and thermal stability of the spent FCC equilibrium catalyst from an oil refinery were characterized by XRD, FT-IR, DTA-TG, BET, complete chemical analysis, SEM, and XRF. The spent FCC equilibrium catalyst, clay, barium carbonate, and talc were used as the main raw materials to prepare the alumina abrasion-resistant ceramic balls to be used in the powder grinding mill for manufacture of architecture tiles. The results showed that after proper formulation study, the spent FCC equilibrium catalyst could replace industrial alumina to prepare high performance grinding balls. Meanwhile, the various performance indices of the grinding ball could meet the quality standard for similar products, and additionally, the energy saving effect was achieved in the operation of the grinding section, resulting in a successful comprehensive utilization of solid wastes.

Thermal Protective Performance of Heat and Flame Resistant Fabrics in Different Radiant and Convective Heat Exposures

The thermal protective performance （TPP） is important for heat and flame resistant fabrics. In this study, fabrics which are made of flame resistant cotton, Nomex, polybenzimidazole （PBI）, polysulfonamide （PSA）, kermel, and blend of kermei with rayon fiber are investigated on high intensity of different radiant and convective heat source. The mechanism of heat transfer in different situations is discussed. It is identified that exposed candition has an important effect on thermal protective performance. TPP rating increases with the increasing percentage of convective heat.

VPLS Based Quality and Cost Control for Tennessee Eastman Process

Product quality and operation cost control obtain increasing emphases in modern chemical system engineering. To improve the fault detection power of the partial least square (PLS) method for quality control, a new QRPV statistic is proposed in terms of the VP (variable importance in projection) indices of monitored process variables, which is significantly advanced over and different from the conventional Q statistic. QRPV is calculated only by the residuals of the remarkable process variables (RPVs). Therefore, it is the dominant relation between quality and RPV not all process variables (as in the case of the conventional PLS) that is monitored by this new VP-PLS (VPLS) method. The combination of QRPV and T2 statistics is applied to the quality and cost control of the Tennessee Eastman (TE) process, and weak faults can be detected as quickly as possible. Consequently, the product quality of TE process is guaranteed and operation costs are reduced.