基于企业生命周期的开放式创新能力与创新绩效关系研究

利用2007~2012年上市公司数据,考量不同生命周期阶段开放式创新能力对企业创新绩效的影响。结果显示：不同生命周期阶段开放式创新能力对企业创新绩效的作用存在差异,其中,吸收能力在成长期与成熟期对企业创新绩效国有显著正效应,在衰退期对创新绩效具有显著负效应;连接能力在成长期与成熟期对创新绩效具有显著正效应,在衰退期与创新绩效呈正相关,但不显著;解吸能力仅在衰退期对企业创新绩效有显著的积极效应,在成长期与成熟期与创新绩效存在正相关,但不显著。结果表明,目前中国上市公司在创新模式上更注重从外部获得新知识,然后通过自身的吸收能力将新知识内化为企业自身的知识,但未意识到保留知识对于企业未来发展的重要性,对企业解吸能力的提升重视不足。     

人造板生产企业的品牌建设

新常态下,我国人造板行业面临着环保、产能过剩、产品结构调整等多方面压力,在这样的形势下,打造知名品牌,不仅是行业发展的客观要求,也是企业面对压力和挑战的应对之策。笔者结合当前人造板行业面临的客观形势,通过分析比较不同行业的品牌建设规律,总结了人造板企业品牌建设存在的问题,提出人造板企业的品牌建设应以诚信建设为基础,通过向终端消费品延伸、上下游联合等手段,塑造自己的品牌。     

冬季供暖工况下混凝土辐射顶板传热特性

针对冬季供暖工况下混凝土辐射顶板的传热问题,建立顶板辐射供暖的简化数学模型,利用MATLAB软件计算其供热量,并通过该顶板辐射供暖的热工特性实验验证模型的合理性。研究表明:顶板温度计算值与实验结果的误差在5.01%以内,供热量计算值与实验结果的误差在5.15%左右。通过对实验和计算结果的分析发现:在定流量稳态工况下,顶板温度随供水温度的增大呈指数性增大,随换热盘管间距的增大而减小。     

利用oligo芯片技术鉴定橡胶树死皮相关基因

橡胶树死皮（Tapping Panel Dryness,TPD）是天然橡胶单产提高的主要限制因子之一,给橡胶种植业带来严重危害。本研究利用定制橡胶树oligo芯片,通过提取死皮和健康橡胶树胶乳总RNA,标记并反转录成cDNA后与橡胶树oligo芯片进行杂交鉴定TPD相关基因,利用RT-PCR技术对芯片结果进行验证。对芯片数据分析结果显示,以2倍标准在死皮与健康橡胶树间筛选到26个差异表达基因,其功能涉及橡胶生物合成、细胞程序性死亡、细胞抗性及防御反应、活性氧代谢、DNA甲基化、泛素-蛋白酶体、信号传导、蛋白质合成、加工及转运等调控途径。进一步的RT-PCR验证结果表明,随机选取12个基因的表达模式均与芯片结果一致。本研究为大规模鉴定TPD相关基因和揭示TPD发生分子机制奠定了基础。     

农村土地挖潜及其有效利用分析——以山东省为例

经济发展和社会进步离不开土地,但由于历史、规划、管理以及人员流动等原因,造成农村部分房屋空置和零星碎地难以利用,导致农村土地利用效率低下,土地资源浪费现象严重。本文以山东省为例,通过对农村土地利用现状分析,剖析了导致土地浪费的原因,提出进行土地整理、挖掘整合农村土地的潜在资源的对策建议。     

福建武平典型烤烟产区烟叶品质特征分析

为阐明福建武平烟区烤烟的内在质量特征、改善和稳定其烟叶质量风格特色和提高烟叶的工业可用性,以福建武平典型烤烟产区‘云烟87’主栽品种C3F初烤烟叶为试验材料,分析研究该烟区烟叶理化特征及感官评吸质量。结果表明：武平烟叶开片度和叶片厚度存在极显著差异,有8个乡镇中部烟叶的开片度已接近或达到40%的优质烟叶标准;武平县各乡镇中部烟叶总氮、钾和氯含量及钾氯比、氮碱比存在极显著差异;极高的钾含量、偏低的氯含量和适宜的烟碱含量是武平烟区烟叶最显著的特征。不同质地和pH土壤种植的烟叶香气质、杂气和余味3个感官评吸质量指标存在显著差异。     

Repair efficiency of cracked panel repaired by a piezoelectric patch

Using the finite element method, the stress intensity factor (SIF) of the cracked penal repaired with a multi layered piezoelectric patch is studied. The effects of the parameters, including the voltage applied on the patch, the piezoelectric patch layer and the geometric size of the patch, on the SIF are numerically investigated, based on which the repair efficiencies in different repair parameters are assessed. Based on the results of the numerical models, that the SIF of the cracked panel repaired with a piezoelectric patch is attenuated greatly. Better repair efficiency is obtained with the increase of voltage, but too higher voltage may be unbeneficial. It is beneficial to use more layers in the piezoelectric patch as the thickness of the patch is fixed. The SIF of the repaired cracked panel decreases with the increase of the size of the patch, however, too large patch may not be helpful to elevate the repair efficiency.     

降低人造板中游离甲醛的措施

介绍了游离甲醛对人体的危害,提出了降低人造板中游离甲醛的工艺措施。     

我国人造板工业生产、贸易现状与展望

通过回顾近年我国人造板工业发展历程,分析了人造板用途以及生产、进出口贸易现状.针对受金融危机影响、用材资源受制约、以及非关税贸易壁垒等问题,提出应加强技术创新、质量环保意识,进一步细分市场和企业整合,增加政策扶持,在危机中实现我国从人造板大国到人造板强国的转变.     

Variation of glucosinolates and nutritional value in nabicol (Brassica napus pabularia group)

Glucosinolate levels in leaves were determined in a collection of 36 varieties of nabicol (Brassica napus pabularia group) from northwestern Spain grown at two locations. Crude protein, acid detergent fibre, and sensory traits were also assessed by a consumer panel. The objectives were to determine the diversity among varieties in total glucosinolate content and glucosinolate profile and to evaluate their sensory attributes in relation to glucosinolate content for breeding purposes. Eight glucosinolates were identified, being the aliphatic glucosinolates, glucobrassicanapin, progoitrin, and gluconapin the most abundant. Glucosinolate composition varied between locations although the glucosinolate pattern was not significantly influenced. Differences in total glucosinolate content, glucosinolate profile, protein, acid detergent fibre, and flavour were found among varieties. The total glucosinolate content ranged from 1.4 μmol g⁻¹ to 41.0 μmol g⁻¹ dw at one location and from 1.2 μmol g⁻¹ to 7.6 μmol g⁻¹ dw at the other location. Sensory analysis comparing bitterness and flavour with variation in glucosinolate, gluconapin, progoitrin, and glucobrassicanapin concentrations suggested that other phytochemicals are probably involved on the characteristic flavour. The variety MBG-BRS0035 had high total glucosinolate, glucobrassicanapin, and gluconapin contents at both locations and could be included in breeding programs to improve the nutritional value of this vegetable crop.