摘要：为满足半导体功率器件测量对高精度、宽量程的需求,本系统设计了一种覆盖1 nA至10 mA量程的电流检测电路,分辨率最低达10 fA。系统包括漏电流保护、I/V转换、信号调理和A/D转换等模块,通过STM32控制器实现数据处理与校准。实验结果表明,本系统测量精度在10 fA至1μA范围内小于0.1%,1μA至100μA范围内小于0.05%,100μA至10 mA范围内小于0.03%。

摘要：为顺应全媒体技术迭代,探索人才培养新思路,本课题组创建了基于手机终端的"广告创意表现"课程教学资源公众号平台,引入了激烈的学科竞赛,开展了商业化的教学实践,开通了顺畅的校企合作渠道,呈现了全媒体课程教学与评价新模式,探索了课程建设新途径.为培养适应全媒体时代发展的复合型广告媒体创意人才提供新的渠道.

摘要：In this paper, we conduct research on the cultural inheritance and vision interactive and the applications on the contemporary art design. In the interaction design, establishment of metaphor interactive model is relates the key of user image model and designer image model is, through finding in two models product altogether has the characteristics, and reveals with the design language the characteristics, communicates with the user, thus enables the user to understand and grasp product the structure, function, usage-style and other information of rapidly. The inheritance rise of culture to some altitude, with the life or death strong and weak dependence department of the nationality and French structuralism anthropology believes that the behavior and standard of humanity are, the origins and development processes of various cultures by the deep structure of culture is decided has its similarity. Under this basis, this paper proposes the new combination model for later integration that will promote the development of the contemporary art design.

摘要：Recent studies have demonstrated that the membrane-proximal external region （MPER） of human immunodeficiency virus 1 （HIV-1） glycoprotein 41 contains a series of epitopes for human monoclonal antibodies, including 2F5, Zl3el, 4El0, and 10E8, which were isolated from HIV-l-infected individuals and show broad neutralizing activities. This suggests that MPER is a good target for the development of effective HIV-1 vaccines. However, many studies have shown that it is difficult to induce antibodies with similar broad neutralizing activities using MPER-based peptide antigens. Here, we report that 10E8-1ike neu- tralizing antibodies with effective anti-HIV-1 activity were readily induced using a precisely designed conformational immu- nogenic peptide containing the 10E8-specific epitope. This immunogenic peptide （designated T10HE） contains a 15-mer MPER-derived 10E8-specific epitope fused to T-helper-cell epitopes from tetanus toxin （tt）, which showed a significantly sta- bilized a-helix structure after a series of modifications, including substitution with an （S）-c^-（2＇-pentenyl） alanine containing an olefin-bearing tether and ruthenium-catalyzed olefin metathesis, compared with the unmodified T10E peptide. The stabilized （x-helix structure of T10HE did not affect its capacity to bind the 10E8 antibody, as evaluated with an enzyme linked immuno- sorbent assay （ELISA） and surface plasmon resonance binding assay （SPR assay）. The efficacies of the T10HE and T10E epitope vaccines were evaluated after a standard vaccination procedure in which the experimental mice were primed with ei- ther the T10HE or T10E immunogen and boosted with HIV-1 JRFL pseudoviruses. Higher titers of 10E8-1ike antibodies were induced by T10HE than that by T10E. More importantly, the antibodies induced by T10HE showed enhanced antiviral potency against HIV-1 strains with both X4 and R5 tropism and a greater degree of broad neutralizing activity than the antibodies in- duced by T10E. These results indic

摘要：美术教材是美育的重要载体,是学生视觉艺术形象感知的首要"界面"。但目前我国教材设计中的版式设计较为滞后,教材内容设计的科学性和视觉传达的有效性、艺术性未能齐头并进地发展。本文以中国和日本两国有代表性的中学美术教材作为样本,对两国教材版式设计理念、形式、效果进行比较和探讨,试图为教材编写单位和视觉设计人员提供相关的建议或者一个新的设计视角。

摘要：在小净距后行隧道爆破开挖过程中,如何保证先行隧道在爆破振动下的安全极为重要。本文以上泗塘隧道为工程背景,通过数值模拟的方法,研究了后行隧道爆破在不同爆炸当量、净距和衬砌厚度对先行隧道衬砌损伤的影响。研究结果表明:t=15 ms时爆破能量传递至先行洞迎爆侧;t=20 ms时拱顶及拱底位置才受到爆破冲击的影响。隧道保留衬砌根据损伤分布特征情况可划分为3个不同区域,即严重破坏区、强扰动区和弱扰动区。增加隧道衬砌厚度能良好提升耗能性和稳定性,当厚度由原设计的0.20 m提升到0.25 m时,动能降幅达到最高为6.4%。本文的研究结果可为小净距隧道稳定性研究提供依据。

摘要：This paper attempts to interpret the famous play by William Shakespeare,Romeo and Juliet,through the lens of aesthetics of *** of the predecessors who researched this play focused on investigating from the perspectives of social background,humanism and comparative analysis,while the author emphasizes the artistic value of the play and attempts to elaborate from the perspective that transcends rationality,logic,and utilitarianism based on the experience of aesthetics.

摘要：电力系统中的负载波动、电压失调等不确定性因素会影响电力虚假数据注入攻击残差检测的准确性,导致电力虚假数据注入攻击电力系统,产生电力系统误判或失控现象,为此设计基于XGBoost算法的电力虚假数据注入攻击残差检测方法。根据XGBoost算法原理完成对电力虚假数据的辨识;构造完整的虚假数据集合,通过分析虚假数据注入攻击行为的方式,确定残差检测系数的取值范围,实现基于XGBoost算法的电力虚假数据注入攻击残差检测。实验结果表明,所提方法可以较为准确地检测出虚假数据的实时注入量,从而将检测结果与真实注入量之间的数值差控制在低水平状态,以便实现对电力虚假数据注入攻击行为的有效控制。

摘要：为解决广告牌设计和管理中地理空间信息不足和信息共享水平低的问题,提出将可量测街景图和WebGIS技术应用于城市广告牌管理的新方法。利用街景图全景可视化、可量测、可定位等优势,探讨基于可测量影像的广告牌空间化、属性关联方法、基于WebService的数据发布方法等系列技术问题,设计并实现基于可量测的广告牌管理系统。

摘要：Cam-lobe radial-piston hydraulic motors are widely used in large machinery due to their excellent capability to withstand high loading at low ***,the line contact between the roller and cam ring generates elastic deformation of the cam ring under high loading,leading to obvious speed and torque pulsations and even the detrimental crawl problem of hydraulic *** address this issue,we propose a deformation pre-compensated optimization design approach to compensate for the cam ring deformation in advance,thereby eliminating the influence of cam ring deformation on the hydraulic motor’s *** this approach,the design process is divided into two steps:first,the overall profile of the cam ring is optimized based on the calculated elastic deformation;second,the local profile of cam ring is further optimized until the hydraulic motor’s pulsations no longer ***,a case study is carried out to verify the effectiveness of this *** result indicates the pulsation rate of a deformation pre-compensated cam ring is 40%lower than that of an uncompensated *** study offers an easy and feasible way to design an optimized cam ring profile for low pulsation hydraulic motors.