Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Sense of agency (SoA), an important part of minimal self, is the experience of influencing the outside world through controlling one’s behavior. Many researchers divided SoA into two parts according to the level of consciousness: feeling of agency (FoA) and judgment of agency (JoA). Different implicit and explicit paradigms are used to investigate the mechanism and connection of these two parts. Among the three core theories in this domain (i.e. comparator model, theory of apparent mental causation, and integration theory), integration theory has been supported by more evidence in recent years. Furthermore, researchers have made significant progress in the areas of distorted SoA and factors which influence SoA. In future, researchers could focus more attention on the changes in SoA in the social environment, the development of SoA, the multimodal integration in SoA, the relationship between SoA and sense of ownership (SO), as well as the neural mechanisms of SoA.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-18 Cooperative journals: 《材料研究学报》
Abstract： Effect of the main TMCP parameters on mechanical properties and microstructure characteristics of X90 pipeline steel was investigated by a labroratory simulated TMPC with desired processing parameters, including reheating temperature, intermediate slab thickness and coiling temperature. Results show that the strength increases with the increment of reheating temperature at first, but dramatically reduces when the grain size gets coarse at reheating temperature of 1250℃. Thicker intermediate slab contributes to higher strength and toughness because of a homogenized microstructure with refined grains was brought out. Coiling temperature plays the most important role in controlling the steel property. A microstructure composed of proper combination of granular banite and lath banite of the steel with optimal matching of strength and toughness can be achieved when coiling at 320℃. An industrial production of X90 coil were carried out employing the parameters obtained through the investigation, high strength combined with great low temperature toughness has been achieved, which proves that TMCP technology in this study has a good practice effect.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2022-04-07 Cooperative journals: 《计算机应用研究》
Abstract： The increase of in-vehicle electronic equipment makes the in-vehicle network face more and more threats. The lack of authentication of the Electronic Control Unit in the in-vehicle network and the lack of encryption of the communication data of the Controller Area Network make the in-vehicle network vulnerable to replay, ECU injection, man-in-the-middle forged messages, eavesdropping, etc, Witch make serious consequences. Aiming at the current vehicle network threats, a vehicle network security communication model based on SecOC is proposed. This model uses the SM4 cryptographic algorithm and the improved key management based on Bkake2s to realize the authentication of the vehicle ECU and the encryption and authentication of the vehicle network message. Finally, after analysis and testing, the model can protect the in-vehicle network security and be more efficient.
Subjects: Biology >> Zoology submitted time 2018-12-25 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究不同淀粉来源（starch source,SS）饲粮中添加酵母培养物（yeast culture,YC）对育肥湖羊生长性能、屠宰性能、养分消化及瘤胃发酵参数的影响。采用2×2因子试验设计，选取体重约为（21.69±2.49） kg的2月龄湖羊公羔120只，随机分为4组，分别为添加1% YC的大麦淀粉组（BS-1）、大麦淀粉组（BS）、添加1% YC的玉米淀粉组（CS-1）、玉米淀粉组（CS），每组5个重复，每个重复6只羊。预试期7 d，正试期56 d。结果表明：1）各组末重、平均日增重、干物质采食量和料重比均差异不显著(P＞0.05)。2）各组宰前活重、胴体重、屠宰率、背膘厚度、GR值、尾脂重及肾周脂重均无显著差异(P＞0.05)，但BS-1组、CS-1组眼肌面积显著高于BS组、CS组（P<0.05）。3）各组干物质、有机物消化率无显著差异(P＞0.05)，但BS-1组、CS-1组中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)消化率显著高于BS组、CS组（P<0.05）；4）各组总挥发性脂肪酸含量及丙酸、丁酸、戊酸、异丁酸、异戊酸占总挥发性脂肪酸比例无显著差异(P＞0.05)，而BS组乙酸占总挥发性脂肪酸比例显著高于CS组（P<0.05）。综上，不同SS来源饲粮中添加YC未改变瘤胃发酵类型，但显著提高饲粮NDF与ADF消化率，进而提高育肥湖羊对粗饲料的利用率。
Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究断奶日龄对湖羊羔羊瘤胃微生物多样性的影响。选择66只湖羊公羔，在羔羊1、14、28日龄各屠宰6只羔羊，剩余48只羔羊随机分为2组，分别于28和56日龄断奶，在42、56、70和84日龄每组屠宰6只羔羊，取瘤胃内容物样品。所有羔羊7 日龄开始饲喂开食料。试验期为羔羊1~84日龄。结果表明：断奶日龄对白色瘤胃球菌（Ruminococcus albus）、黄色瘤胃球菌（Ruminococcus flavefaciens）、牛链球菌（Streptococcus bovis）、产琥珀酸丝状杆菌（Fibrobacter succinogenes）和布氏密螺旋体（Treponema bryantii）的相对丰度无显著影响（P>0.05）。随着日龄增加，羔羊瘤胃微生物多样性不断增加，28日龄断奶的羔羊相对56日龄断奶的羔羊其瘤胃微生物多样性提高。结果提示，瘤胃微生物多样性受日龄和断奶日龄的影响，早期断奶可加速瘤胃微生物区系的建立。
Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》
Abstract：亚急性瘤胃酸中毒（SARA）是高产反刍动物过量采食高淀粉、易发酵碳水化合物饲粮所导致的一种常见营养代谢疾病，使瘤胃健康受损进而降低饲料转化效率。相同处理下，不同个体对SARA耐受性存在较大差异，因此研究反刍动物个体间SARA变异性的机制是重要的科学问题。本文分别从采食行为、瘤胃上皮吸收功能以及微生物区系3个方面解析动物个体间SARA变异性潜在机制，为反刍动物健康与高效生产提供参考和理论依据。
Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在基于康奈尔净碳水化合物与蛋白质体系（CNCPS）建立大麦秸秆营养组分数据库，并利用近红外光谱分析技术（NIRS）建立其营养价值预测模型。试验采集甘肃省13个县市96份大麦秸秆样品，测定其干物质（DM）、粗灰分（Ash）、粗蛋白质（CP）、粗脂肪（EE）、中性洗涤纤维（NDF）、酸性洗涤纤维（ADF）、酸性洗涤木质素（ADL）、中性洗涤不溶蛋白质（NDIP）、酸性洗涤不溶蛋白质（ADIP）、可溶性粗蛋白质（SP）、钙（Ca）和磷（P）含量，利用CNCPS 6.5计算各样品碳水化合物（CHO）和蛋白质营养组分。分别用76份和20份大麦秸秆样品作为定标集和验证集评价NIRS预测模型。结果显示：1）大麦秸秆DM、Ash、CP、EE、NDF、ADF、ADL、NDIP、ADIP、SP、Ca和P含量分别为95.21%、7.38%、3.51%、5.68%、70.95%、45.16%、5.17%、1.02%、0.57%、1.65%、0.71%和0.09%。2）大麦秸秆CNCPS CHO各组分CHO、非纤维性碳水化合物（NFC）、可溶性纤维（CB2）、可消化纤维（CB3）和不消化纤维（CC）含量分别为83.42%、12.47%、12.47%、58.55%和12.40%。大麦秸秆CNCPS蛋白质各组分可溶性真蛋白质（PA2）、难溶性真蛋白质（PB1）、纤维结合蛋白质（PB2）和非降解蛋白质（PC）含量分别为1.65%、1.23%、0.45%和0.57%。3）有机物（OM）、CP、NDF、ADF、CHO、NFC和CB2的交互验证决定系数（1-VR）＞0.8，验证决定系数（RSQv）≥0.84，这些模型可用于日常分析。OM、CP、NDF、ADF、CHO、NFC和CB2的模型参数分别为标准正常化和去散射二阶导数处理（SNV and detrend 2,4,4,1）、SNV and detrend 2,4,4,1；标准正常化和去散射一阶导数处理（SNV and detrend 1,4,4,1）；无散射一阶导数处理（None 1,4,4,1）；SNV and detrend 2,4,4,1；无散射二阶导数处理（None 2,4,4,1）；None 2,4,4,1。而其余成分所建模型未达到实用水平，模型须进一步完善。总之，本研究为大麦秸秆在反刍动物饲粮中的应用提供基础的化学分析数据，并通过NIRS方法建立了主要营养成分的快速预测模型。
Subjects: Medicine, Pharmacy >> Preclinical Medicine submitted time 2018-06-15 Cooperative journals: 《南方医科大学学报》
Abstract： Objective To assess the value of preoperative serum albumin level in predicting the survival of patients with non-muscle-invasive bladder cancer (NMIBC) undergoing transurethral resection of bladder tumor (TURBT). Methods Two hundred and sixteen newly diagnosed patients with NMIBC who underwent TURBT between January, 2007 and April, 2012 were retrospectively analyzed. The patients were categorized into low albumin (<40 g/L) and normal albumin (≥40 g/L) groups. The patient survival was estimated using the Kaplan-Meier method, and univariate and multivariate Cox proportional analyses were used to determine the hazard ratios (HRs) for the overall survival (OS). Results Of the patients with available data, 82 (39%) and 127 (61%) patients were classified into low albumin (<40 g/L) and normal albumin (≥40 g/L) groups, respectively. Kaplan-Meier analysis showed a significantly worse 5-year OS in low albumin group than in normal albumin group (P=0.017). In the multivariate Cox regression analysis, after adjusting for confounding variables, the preoperative albumin level remained as an independent predictor for 5-year OS (HR: 3.102, 95%CI: 1.200-8.020, P=0.020). Conclusion A low preoperative albumin level predicts a poor 5-year OS in patients with NMIBC who underwent TURBT. Preoperative serum albumin can be a good prognostic factor for predicting survival of the patients with NMIBC treated with TURBT.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-04-24 Cooperative journals: 《计算机应用研究》
Abstract： To make full use of the context information of the papers, combined with the construction method of graph model and query vector, this paper proposed a fusion query information personalized citation recommendation method. Built a three layer graph model through three kinds of paper information, and set different parameters on different layers to adjust the jump probability of nodes to different levels; the query vector constructed using word2vec technology can effectively use the text context information, so that similar papers are closer to the distance, and then the candidate papers are predicted and recommended. Computational analyzes performed on the Association of Computational Linguistics Anthology Network dataset showed an average increase of about 7% over recall@N and an average increase of about 11% over NDCG@N for the same query compared to the original method. Experimental results show that the proposed method can effectively improve the quality of citation recommendation and get better recommendation results.
Subjects: Civil Engineering and Building Construction >> Civil Construction Engineering submitted time 2017-12-05 Cooperative journals: 《土木建筑工程信息技术》
Abstract：随着建筑技术的日益进步，施工现场的场地布置面临着巨大的挑战。如何合理的进行施工场地的布置关系着安全文明施工，也影响着企业形象。本文主要通过结BIM技术，进行三维场地布置，进而解决设备安置、材料堆放、设备进场、生活区布置等二维图纸难以解决的问题，并且通过BIM模型进行场地布置工程量计算、施工 场地布置资产管理等。
Subjects: Civil Engineering and Building Construction >> Civil Construction Structures submitted time 2017-11-30 Cooperative journals: 《土木建筑工程信息技术》
Abstract：随着建筑技术的日益进步，施工现场的场地布置面临着巨大的挑战。如何合理的进行施工场地的布置关系着安全文明施工，也影响着企业形象。本文主要通过结BIM技术，进行三维场地布置，进而解决设备安置、材料堆放、设备进场、生活区布置等二维图纸难以解决的问题，并且通过BIM模型进行场地布置工程量计算、施工 场地布置资产管理等。
Subjects: Biology >> Zoology submitted time 2017-10-23 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在探讨断奶时间对不同日龄湖羊羔羊瘤胃形态及表皮生长相关基因表达的影响。采用两因子试验设计，设断奶时间和羔羊日龄2个因子。选择初生重[（3.51±0.57） kg]接近的54只湖羊羔羊，28日龄时随机屠宰6只后按照同质性原则将剩余48只湖羊分为28日龄断奶组[（8.21±0.97） kg]和56日龄断奶组[（8.06±0.53） kg]，分别在42、56、70和84日龄从2组中各随机挑选6只羔羊进行屠宰。采集瘤胃腹囊组织样品测定瘤胃乳头长度、宽度和肌层厚度，提取瘤胃组织总RNA测定表皮生长相关基因表达量。结果表明：28日龄断奶组羔羊瘤胃乳头长度和宽度显著高于56日龄断奶组羔羊（P＜0.05），瘤胃肌层厚度显著低于56日龄断奶组羔羊（P＜0.05）。断奶时间和羔羊日龄之间的交互作用对瘤胃乳头长度和肌层厚度有显著影响（P＜0.05）。28日龄断奶组羔羊瘤胃上皮胰岛素样生长因子结合蛋白（IGFBP）3、IGFBP5和IGFBP6表达量显著高于56日龄断奶组（P＜0.05）。羔羊瘤胃乳头长度与转化生长因子β（TGFβ）1和IGFBP6表达量呈显著负相关（R=-0.318，P=0.001；R=-0.520，P<0.001）；瘤胃乳头宽度与TGFβ1表达量呈显著负相关（R=-0.275，P=0.004），与IGFBP3和IGFBP5表达量呈显著正相关（R=0.344，P<0.001；R=0.256，P=0.001）。综上所述，28日龄断奶促进湖羊羔羊瘤胃乳头发育，瘤胃表皮生长相关基因,可能参与羔羊瘤胃早期发育的调控。
Subjects: Biology >> Zoology submitted time 2017-10-23 Cooperative journals: 《动物营养学报》
Abstract：幼龄反刍动物饲粮的纤维性碳水化合物（FC）来源与组成对调控其生长发育和瘤胃功能建立有重要作用，其来源各异，粒度不同，对正处于生长期的幼龄反刍动物的采食和消化、瘤胃液pH及瘤胃发育等生理参数的影响存在差异。本文综述了近年来关于幼龄反刍动物饲粮中性洗涤纤维（NDF）来源和粒度的研究，分别从生产性能、瘤胃发酵和瘤胃发育3个方面总结了二者对幼龄反刍动物的影响，并对相关机制进行了探讨。
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究断奶时间及日龄变化对湖羊羔羊肌肉中脂肪酸组成的影响。试验选取体重[（3.51±0.57） kg]接近、健康状况良好的54只初生湖羊公羔，饲养至28日龄后屠宰6只。将剩余的48只按照同质性原则分为28日龄断奶组[（8.21±0.97） kg]和56日龄断奶组[（8.06±0.53） kg],每组24只。2组在42、56、70、84日龄分别屠宰6只，屠宰后测定羔羊背最长肌脂肪酸组成和瘤胃中氢化菌含量的影响。结果表明：1）56日龄断奶组肌肉中大部分脂肪酸的含量高于28日龄断奶组；随着日龄的增长羔羊肌肉中脂肪酸的含量逐渐升高，种类变得越来越多。2）70日龄时，28日龄断奶组的瘤胃中溶纤维丁酸弧菌含量显著高于56日龄断奶组（P<0.05）；56日龄断奶组溶纤维丁酸弧菌的含量在42日龄时显著高于70和84日龄（P<0.05）。由此可见，与28日龄断奶相比，羔羊在56日龄断奶更利于肌肉中脂肪酸的沉积。
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：饲喂高能、高淀粉饲粮是集约化生产中提高反刍动物生产性能的常用策略，但高精料饲粮易引起一系列的营养代谢疾病，其中以瘤胃酸中毒最为常见。反刍动物瘤胃不仅具有消化、吸收营养物质的功能，瘤胃上皮亦是重要的免疫屏障，故瘤胃健康对反刍动物至关重要。本文主要从反刍动物采食高精料饲粮时其瘤胃组织形态、瘤胃上皮适应分子机制和瘤胃微生物区系3个方面的变化进行阐述，以期为高精料饲粮条件下瘤胃适应机制的研究提供参考。
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：断奶初期，幼龄反刍动物的消化和免疫系统等尚未发育完全，断奶应激会导致幼畜体内激素水平及免疫功能改变，引起免疫系统抑制，诱发炎症反应，阻碍幼畜生长发育，增加患病风险。本文从糖皮质激素、免疫细胞、急性期蛋白和相关细胞因子4个方面阐述了断奶应激对幼龄反刍动物免疫系统的影响及其机理，旨在为相关研究提供科学依据。
Subjects: Materials Science >> Materials Science (General) submitted time 2017-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract：模拟含硫原油加工过程中生成的具有高自然性的腐蚀产物，利用三氧化二铁与硫化氢反应制备硫铁化合物，将硫化反应产物分为两部分，一部分保存在乙醇中，一部分暴露于空气中。用XPS研究硫化产物及其氧化产物中硫、铁的存在形态。结果表明，硫化产物中硫元素主要存在形式是二硫化亚铁；氧化产物中主要存在形式是硫酸盐，少部分硫化亚铁、单质硫及FeSx。硫化产物和氧化产物中铁元素的主要存在形式都是三氧化二铁和二硫化亚铁。
Hits
Hits
Downloads
Comment