基于Cruise/BlackBox的电动汽车制动能量回收仿真

在使用AVL-Cruise进行整车仿真过程中,需要对制动能量回收策略进行研究。基于AVL-Cruise建立仿真平台,使用Cruise/Black Box引入控制代码,设定一个制动能量回收策略并使用Cruise/Black Box实现控制策略,使用AVL-Cruise联合Cruise/Black Box接口组件对具体的工况进行仿真分析。结果表明,基于Cruise/Black Box的电动汽车制动能量回收仿真,能够完全真实地反映制动能量回收控制策略在电动汽车上的工作过程。

Analysis of Data on Xanthan Fermentation in Stationary Phase Using Black Box and Metabolic Network Models

The xanthan fermentation data in the stationary phase was analyzed using the black box and the metabolic network models. The data consistency is checked through the elemental balance in the black box model. In the metabolic network model, the metabolic flux distribution in the cell is calculated using the metabolic flux analysis method, then the maintenance coefficients is calculated.

Reliable Space Pursuing for Reliability-based Design Optimization with Black-box Performance Functions

Reliability-based design optimization （RBDO） is intrinsically a double-loop procedure since it involves an overall optimization and an iterative reliability assessment at each search point. Due to the double-loop procedure, the computational expense of RBDO is normally very high. Current RBDO research focuses on problems with explicitly expressed performance functions and readily available gradients. This paper addresses a more challenging type of RBDO problem in which the performance functions are computation intensive. These computation intensive functions are often considered as a ＂black-box＂ and their gradients are not available or not reliable. On the basis of the reliable design space （RDS） concept proposed earlier by the authors, this paper proposes a Reliable Space Pursuing （RSP） approach, in which RDS is first identified and then gradually refined while optimization is performed. It fundamentally avoids the nested optimization and probabilistic assessment loop. Three well known RBDO problems from the literature are used for testing and demonstrating the effectiveness of the proposed RSP method.

Application of ″Black Box″ to fault diagnosis of rotating machine

Presents the navigation based on reinforcement learning and an algorithm, and disscusses the combination of the neural network with Q learning.

Black Box Modeling Method and Its Application in Refractories Techniques

Concept of black box, condition of modeling and control methods were introduced. Taking high purity silica brick as an example, the silica brick featured with high purity, low porosity, low true density and high strength was developed through problem analysis, test design, modeling and optimization. Using information technology to upgrade refractories industry was discussed.

A Novel Black Box Based Behavioral Model of Power Amplifier for WCDMA Applications

In this paper, Black Box approach is presented for behavioral modeling of a non linear power amplifier with memory effects. Large signal parameters of a Motorola LDMOS power amplifier driven by a WCDMA signal were extracted while taking into considerations the power amplifier’s bandwidth. The proposed model was validated based on the simulated data. Some validation results are presented both in the time and frequency domains, using WCDMA signal.

Operating room black box:Scrutinizer of theatre practices

Objective:Adverse surgical events are a major cause of morbidity,mortality,and disability worldw ide.The cause of many such events can be attributed to interruptions in the operating room(OR),muli-tasking by surgeons,etc.The objective of this study was to observe the types and frequency of intra-operative wor kflow interruptions in our ORs.Method:This ccoss-sectional study was conducted from March Do April of 2023.An observational approach using an audio-video recording device was employed to record OR flow disr uptions.One elective OR and one emergency OR under the Department of General Surgery were selected for the study.All open and laparoscopic surger ies conducted in the selected ORs were included.An Internet Protocol camera'was installed in the selec ted ORS with a view of the entire room,including the anesthesia station.Audio-video recording was started after the first indsion and stopped after closure of the surgical site.Result:Of the 51 cases that were studied,45(88.2%)were elective,and 18(35.3%)were laparoscopic cases.They could be classified into 8 types of open procedures and 4 types of lapar oscopic procedures.The mean maximum headcount inside the OR was 15.5土3.6 and doors opened on average of 15.8土6.0 times during a procedure.Other interruptions were surgeons attending phone calls(24,47.1%),leaving the sterile area(21,41.2%),technical disturbances(32,62.7%),anesthetic interruptions(18,35.3%),and faulty instruments(29,56.9%)Elective procedures had a signifcandy higher average number of in-terruptions per operating hour than emergency procedures(175±8.6vs.7.1±2.9,p<0.01).Condusion:Preventable factors such as faulty instruments,anesthetic interruption,and attending phone calls by the surgeon are commonly observed in ORs.They need to be addressed by timely surgical audits or the adoption of continued sureillance methods that can help take measures to minimize their occurrence.

Cultivation of Modern and New Farmers from the Perspective of Black Box of Science and Technology

On the basis of analyzing the connotation and function of black box of science and technology,this article expounds the necessity of cultivating modern and new farmers in China at present,and points out that with incessant progress of science and technology,the modern agriculture based on black box of science and technology will continue to grow,which requires a large number of new farmers who can learn and improve black box of agricultural science and technology.Finally,the recommendations are put forward for cultivation of new farmers:improving farmers' training system;enhancing rural financial support,so that the farmers benefit from black box of science and technology;strengthening the cultivation of the practical ability,and promoting farmers' management capacity;strengthening the cultivation of innovative ability,and nurturing innovative farmers.

Electric power generation technology of natural gas pressure reduction:Insights from black box-gray box hierarchical exergy analysis and evaluation method

Based on the“three box”exergy analysis model,a black box-gray box hierarchical exergy analysis and evaluation method is put forward in this paper,which is applied to evaluate the power generation technology of differential pressure produced by natural gas expansion.By using the exergy analysis theory,the black box-gray box hierarchical exergy analysis models of three differential pressure power generation technologies are established respectively.Firstly,the“black box”analysis models of main energy consuming equipment are established,and then the“gray box”analysis model of the total system is established.Based on the calculation results of exergy analysis indexes,the weak energy consumption equipment in the whole power generation process is accurately located.Taking a gas field in southwest China as an example,the comprehensive energy consumption evaluation of the three power generation technologies is carried out,and the technology with the best energy consumption condition among the three technologies is determined.Finally,the rationalization improvement measures are put forward from improving the air tightness,replacing the deflector and reducing the flow loss.

Exploring Image Culture Through Narrative： A Study on Jennifer Egan＇s Twitter Fiction Black Box

Notable for the completeness with which it surrenders formally and artistically to the textual dictates of Twitter, Jennifer Egan＇s 2012 short science fiction Black Box is one of the most triumphant and fully-fledged fictions written in the form of new media. This paper explores the Twitter narrative employed in Black Box, pointing out that the serialized tweeting format of the story released via computer, mobile phone, or other electronic equipments brings readers immediate reading experience, allowing readers to sense the same feelings as the protagonist does. Through the experimental serialization of＂Twitter＂ narrative, Egan expresses her concerns and worries about the security of the American security as well as the whole world in the post-＂9.11＂ period and at the same time she embraces the virtues and pleasures of traditional storytelling delivered through a wholly new digital format. This paper concludes that Black Box is perhaps one of the boldest experiments of narrative form and is direct exploration into the contemporary image culture.

The Black Box

Like many other people ~*with nowhere better to go^1,thewoman everyone called Old Betty came to the library almost everyday.Prim^2 Miss Tonsitt sometimes had to get the caretaker^3 to e-ject^4 old people from the library if their sleeping,eating or talkingbecame too objectionable^5,but Old Betty never gave any trouble.Still quite sprightly^6 despite her age, ~*though subiect to

On the Effectiveness of the System Validation Based on the Black Box Testing Methodology

With the advancement of technology in recent years, effective fault diagnosis became a necessity to verify the performance and ensure the quality of complex systems. In this paper, an original verification methodology for complex consumer electronic devices is presented. Verification of the system which consists of hardware （integrated circuit） and corresponding software within a flat panel TV set is in the focus. Proposed methodology provides reliable functional failure detection using the concept of black box testing. Further, the approach is fully automated, improving the reliability and speed of failure detection. The methodology effectiveness has been experimentally evaluated and the analysis results have been reported.

Box-Behnken响应面法结合BP神经网络优化黑胡椒脐贴处方研究

目的采用Box-Behnken响应面法结合BP神经网络优化黑胡椒脐贴处方。方法在前期预试验的基础上,以载药量、促渗剂用量、聚乙二醇(polyethylene glycol,PEG)6000与微粉硅胶的比例为影响因素,进行单因素试验。结合体外透皮试验,利用高效液相色谱法测定胡椒碱的含量,对胡椒碱峰面积、指纹图谱的总峰面积和脐贴的成型性、剥离残留度和基质填充情况赋以权重,所得结果为综合评价指标。在单因素试验的基础上利用Box-Behnken响应面法结合BP神经网络优化脐贴处方。结果黑胡椒脐贴的最佳处方为载药量7%、氮酮4.5%、PEG6000与微粉硅胶的质量比为43∶1。结论黑胡椒脐贴的处方合理,可为后续贴剂的药效学研究提供基础。

<i>PP</i>and <i>P<span style='text-decoration:overline;'>P</span></i>Multi-Particles Production Investigation Based on CCNN Black-Box Approach

The multiplicity distribution (P(nch)) of charged particles produced in a high energy collision is a key quantity to understand the mechanism of multiparticle production. This paper describes the novel application of an artificial neural network (ANN) black-box modeling approach based on the cascade correlation (CC) algorithm formulated to calculate and predict multiplicity distribution of proton-proton (antiproton) (PP and PP ) inelastic interactions full phase space at a wide range of center-mass of energy . In addition, the formulated cascade correlation neural network (CCNN) model is used to empirically calculate the average multiplicity distribution nch> as a function of . The CCNN model was designed based on available experimental data for = 30.4 GeV, 44.5 GeV, 52.6 GeV, 62.2 GeV, 200 GeV, 300 GeV, 540 GeV, 900 GeV, 1000 GeV, 1800 GeV, and 7 TeV. Our obtained empirical results for P(nch), as well as nch> for (PP and PP) collisions are compared with the corresponding theoretical ones which obtained from other models. This comparison shows a good agreement with the available experimental data (up to 7 TeV) and other theoretical ones. At full large hadron collider (LHC) energy ( = 14 TeV) we have predicted P(nch) and nch> which also, show a good agreement with different theoretical models.

Box-Behnken响应面法优选改良型正骨灵活血止痛膏成型工艺

目的:优选改良型正骨灵活血止痛膏成型工艺。方法:基于Box–Behnken响应面法,以蜂蜡用量、混合温度、料液比为影响因素,以传统经验鉴别法与客观物理参数法的综合评分为评价指标,在单因素试验基础上,考察各因素对综合评分的影响,优选最佳的成型工艺条件。结果:蜂蜡用量为1.9%,混合温度为81℃,料液比为2.5∶1 g/mL。验证试验结果综合评分RSD为0.86%。结论:优选得到的改良型正骨灵活血止痛膏成型工艺稳定可行。

C57black/6小鼠全脑缺血模型脑内Bax和Bcl-2的表达

本研究采用C57black/6小鼠制备全脑缺血模型,观察脑缺血后多个脑区Bax和Bcl-2基因的表达。双侧颈总动脉夹闭(bilateral common carotid artery occlusion,BCCAO)15min,造成全脑缺血,24h后取脑组织进行Bax和Bcl-2免疫组织化学染色。结果显示:Bax阳性细胞广泛分布在大脑皮层、丘脑和杏仁核,阳性产物主要位于胞质内。除丘脑外,其他各部位Bax阳性神经元的密度缺血组均显著高于假手术组(P<0.05);缺血组各区域细胞染色灰度值均显著低于假手术组(P<0.01)。Bcl-2阳性细胞在大脑皮层和丘脑均有表达,缺血组大脑皮层内Bcl-2阳性神经元的密度显著高于假手术组(P<0.05);缺血组各区域细胞染色灰度值均显著低于假手术组(P<0.01)。以上结果表明双侧颈总动脉夹闭法致C57black/6小鼠全脑缺血模型可致多脑区Bax和Bcl-2的广泛表达,提示Bax和Bcl-2可能介导了缺血所致的神经元损伤。

云南省南苜蓿和天蓝苜蓿根瘤菌BOX-PCR分析

[目的]进行南苜蓿和天蓝苜蓿根瘤菌的BOX-PCR分析,为苜蓿高效固氮根瘤菌的筛选和接种剂的研究提供理论依据。[方法]采用boxA1R单引物对90株根瘤菌供试菌株及5株标准菌株进行BOX-PCR分析,并进行聚类分析。[结果]经过扩增得到了较多的条带,90株供试菌株共有31种BOX图谱类型。聚类分析结果显示,所有菌株在40%相似性水平上聚为一群;而在69%的相似性水平上,供试菌株可细分为7个遗传群,群1的菌株全部分离自云南省江川县路居镇天蓝苜蓿的根瘤,群3内的菌株都分离自德宏州盈江县的南苜蓿根瘤,并与标准菌株Enisfer melilotiUSDA1002T聚在一群,在群4、5、6中,除SWF67340的宿主为南苜蓿外,其他菌株的宿主都为天蓝苜蓿,群7中,除SWF66320、SWF67343、SWF65116和SWF673704株菌的宿主为天蓝苜蓿外,其余菌株的宿主都为南苜蓿。[结论]供试菌株具有丰富的遗传多样性,BOX-PCR能够区分它们之间的差异;大多数菌株按宿主及采集地聚群,但也有交叉。

BOX-BEHNKEN设计-效应面法优化黑胡椒中的胡椒碱提取工艺

以黑胡椒为原料,采用乙醇热回流方法提取其中的胡椒碱,研究了乙醇浓度、料液比、提取次数、提取时间这4个因素对胡椒碱得率的影响,同时利用BOX-BEHNKEN试验设计方法研究这个4个因素对胡椒碱得率的影响并进行优化.分析结果表明,最佳工艺参数为:乙醇体积分数83%,料液比1∶11,提取次数3次,提取时间2.5 h.胡椒碱得率可达5.45%,预测值与实际值高度一致,表明该工艺可提高从黑胡椒中提取胡椒碱的得率,为以后黑胡椒的深度开发提供了参考.

基于指纹图谱的Box-Benhnken响应面法结合BP神经网络多指标优化黑胡椒提取工艺

基于中药指纹图谱技术,采用Box-Benhnken响应面法结合BP神经网络优化黑胡椒的提取工艺。将黑胡椒HPLC指纹图谱总峰面积标准化值、胡椒碱峰面积归一化值、指纹图谱相似度分别赋以权重,得到综合评价指标。在单因素试验的基础上,应用Box-Benhnken响应面法优化黑胡椒提取工艺,最佳提取工艺为乙醇浓度90%、料液比1∶40(g/mL)、超声时间40 min。选取Box-Benhnken响应面法获得的综合评价指标进行BP神经网络训练、验证与预测,得到最佳提取工艺为乙醇浓度100%、料液比1∶30(g/mL)、超声时间为40 min。三组黑胡椒最优提取工艺验证结果证明,BP神经网络的综合评价指标为0.895,优于Box-Benhnken响应面法的综合评价指标0.885。本研究基于中药指纹图谱技术,采用Box-Benhnken响应面法结合BP神经网络,可为黑胡椒提取工艺的优化提供新思路,获取最佳提取方案。

算法解释制度的体系化构建

算法解释在算法治理中举足轻重。算法解释承载着权益保障、社会交往和风险治理三重意义,其在技术层面上的障碍正在逐渐被突破,可以通过多种技术机制实现。在算法治理活动中,应根据常规场景、关键场景和争议场景分别限定选择解释的路径选择和技术方案,通过冻结机制、抽样机制和镜像机制固定算法解释,并使之接受外部的验证与审查,确保算法解释真实、有效。算法解释的系列机制应被进一步构建为体系化的算法解释制度,在这一制度框架内,对解释路径与精度、解释时限、解释瑕疵责任等要素的合理配置,可以实现社会效益与规制负担的精细平衡。