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为研究组合楼板作为承载构件时在压型钢板局部削弱后的受弯性能，对压型钢板的竖直与水平方向进行不同程度的弱化，并在弱化后对钢板进行无侧向约束的受弯试验，研究压型钢板削弱后的受弯性能及其破坏形式。试验结果表明：在均布荷载作用下，各组压型钢板的破坏均以跨中受弯屈曲破坏为主；水平方向洞口削弱了钢板上翼缘承载力，当水平洞口半径为20 mm时，试件抗弯承载力降低约15%；竖向洞口会阻碍钢板上、下翼缘应力的传递，当竖向洞口半径为25 mm时，试件抗弯承载力降低约10%。通过对比可知，水平方向的弱化对承载力的影响相较于竖直方向要更加明显。

企业影响力的高低不仅关系到其行业竞争力，也影响着其社会声誉和未来发展，然而对企业影响力的评价一直没有统一的标准。GitHub是一个代表性的软件开发代码存储库开源平台，现有研究通常使用企业在GitHub发布的项目得到的star总数衡量其影响力高低，但是这种方式难以衡量小微企业和新生企业的潜力。通过引入科学家的影响力衡量指标h指数，以GitHub为信息源进行企业网络建模，同时基于该网络提取特征构建分类器，对企业未来的影响力水平进行预测。在此基础上应用SHAP模型解释技术，判别决定企业影响力的重要特征。实验结果显示，基于XGBoost的模型在GitHub真实数据集上实现了0.92的准确率和0.93的平均AUC，可以准确、可靠地对企业进行影响力预测。

针对当前通用型称重料仓工艺烦琐和设备复杂的问题，以大豆为例，运用模块化集成设计理念，采用理论分析与仿真模拟相结合的方法，设计开发了一套集卸料器与料仓于一体的气固分离称重料仓。采用Solidworks三维建模软件将设备各部分构件建模，运用计算流体力学及离散项模型对气固分离称重料仓的关键结构进行分析。结果表明，设计的气固分离称重料仓在完成称重卸料的同时可分离轻杂，简化了称重卸料过程，新增的蝶阀模块可根据料仓内的物料量动态调整进出仓过程。综上，设计的气固分离称重料仓可用于气力输送大豆的称重卸料。 Aiming at the problems of the cumbersome process and complicated equipment of the current general-purpose weighing silo, taking soybean as an example, using the modular integrated design concept and the method of combining theoretical analysis and simulation, a set of gas-solid separation equipment for weighing silo integrating unloader and silo was designed and developed. The Solidworks 3D modeling software was used to model each part of the equipment. The key structure of the gas-solid separation equipment for weighing silo was analyzed by computational fluid dynamics and discrete phase model. The results showed that the designed gas-solid separation equipment for weighing silo could realize the separation of light impurities while completing weighing and discharge, and simplified weighing and discharge process. The newly added butterfly valve could dynamically adjust the process of inlet and outlet according to the amount of material in the silo. In conclusion, the designed gas-solid separation equipment for weighing silo can be used for weighing and unloading of pneumatically conveyed soybeans.

大规模风电并网对电力系统灵活性提出了很高的要求。针对大规模风电并网背景下的消纳问题提出了一种火电机组灵活性改造与输电网规划多阶段联合决策方法。通过将火电机组灵活性改造纳入输电网规划优化决策,统筹优化系统灵活性及传输能力,促进大规模风电并网消纳。基于规划周期内负荷功率预测曲线,并计及风电时序出力不确定性情景,以输电网建设投资成本、火电机组灵活性改造成本以及发电总成本、弃风电成本折现值之和最小为目标,以系统正常运行状态以及N-1事故状态下安全运行要求为约束条件构建火电机组灵活性改造与输电网规划多阶段联合优化决策模型,并通过大M法将所提模型转换为混合整数线性规划模型进行快速求解。算例分析验证了所提多阶段联合规划决策方法的有效性和经济效益。

探讨一套能快速、准确定位脑区的操作方法，以解决传统实验动物因体型大小、性别差异以及新兴实验动物因缺乏相应图谱和立体定位坐标信息而难以精确定位脑区的问题。其主要方法是以长爪沙鼠（Meriones unguiculatus）为研究对象，先行切片制作出一套与待进针体型相近的同性长爪沙鼠的尼氏染色脑图谱，比对小鼠脑图谱以初步了解目的脑区周围结构及相对位置。再利用桌面数显型脑立体定位仪固定其头部，并以前囟为原点垂直进针以在脑组织留下进针痕迹，快速断头后制备脑组织冠状冰冻切片。以尼氏染色脑图谱为基础，测量与计算目标脑区与前囟的相对位置，初步推算三维空间坐标。进针此坐标并再次制备切片并计算进针点与目标脑区的偏差值，即可得到该脑区的精确坐标，重复上述步骤验证该坐标数据的精确度。本实验通过上述方法快速进针左右两侧若干脑区并获得其坐标数据，有左右两侧侧脑室（LV），室旁核（PVH），中央杏仁核（CeA），内侧杏仁核（MeA），终纹床核（BST）等研究热点脑区，均有较高的成功率，因此该方法适用于快速准确定位脑区。

提出一种基于热循环蓄热特性的电-热综合能源系统风电消纳策略。首先构建了典型的电-热综合能源系统结构，分析了电热互补潜力；进而针对热网蓄热特性进行建模，分析了热网蓄热参与系统消纳风电的调节潜力；同时结合热电联产机组和热泵模型，构建了基于热网蓄热特性的电-热综合能源系统优化调度模型，以实现对热网蓄热的充放能管理。算例结果表明，该方法可使热电联产根据系统风电预测出力和电负荷需求调整自身出力，实现系统热负荷跨时段转移，最终达到提升系统风电消纳水平、降低系统一天内用能总成本的目的。

为了调查石首麋鹿自然保护区内重要病原菌和寄生虫的感染情况,通过麋鹿粪便和脏器进行细菌分离培养及16S rRNA PCR等方法对病原菌进行鉴定; 通过饱和食盐水漂浮法和沉淀聚集法对麋鹿粪便中的寄生虫卵进行检测。结果显示:从麋鹿粪便及病死麋鹿病料中共分离出8种菌,其中粪肠球菌、乳酸杆菌、大肠杆菌为肠道正常菌群,嗜水气单胞菌为条件致病菌,而志贺杆菌、蜡样芽孢杆菌、产气荚膜梭菌和链球菌均为重要病原菌,可导致麋鹿腹泻、败血症甚至引起死亡。从麋鹿粪便中共检测出3种虫卵,分别为前后盘吸虫卵、贝氏莫尼茨绦虫卵和血矛线虫卵。结论:石首地区存在的致病微生物种类较为复杂,病原菌主要导致麋鹿腹泻,寄生虫感染存在明显的季节性。

美國 1998 年通過之著作權存續期間延長法（Sonny Bono Copyright Term Extension Act, CTEA），其合憲性雖在Eldred v. Ashcroft 一案中得到法院肯定，其立法智慧卻飽受質疑。本文從Eldred 案中Akerlof 等經濟學家之論述出發，以經濟分析之方法探討著作權保護之社會成本，並以數位權利管理科技（digital rights management, DRM）之發展與其可能影響為論述之重點。 本文發現，對著作權獨占之絕對損失與著作授權交易成本兩大問題，理想的DRM 科技的確可以提供一定程度的緩和效果。視著作類型、利用型態及所考慮成本之性質，DRM 帶來的幫助大小有別，但整體而言，並非吾人得以忽略。因此隨著DRM 科技成熟，從效率的觀點反對著作權存續期間延長的基礎將日漸薄弱。然而，DRM 不旦發展前景仍未明朗，且即使是完美的DRM 也不能完全排除著作權保護所帶給社會的成本。如果進一步考慮保障著作權人絕對控制可能引起的反動，以及反規避條款或類似立法之執行成本，則立法者在著作權存續期間之斟酌上，實應更加審慎。台灣的立法者應將美國的CTEA 視為前車之鑑，而非效法之對象。 The Sonny Bono Copyright Term Extension Act of 1998 (CTEA), while having survived a surprisingly strong constitutional challenge in Eldred v. Ashcroft, remains controversial on efficiency ground. This article seeks to provide an economic analysis of the social costs of prolonged copyright terms, taking into account the potential of digital rights management (DRM) technologies. The article suggests DRM technologies, when properly designed, may reduce the dead weight loss of copyright monopolies and the transaction costs of copyright licensing, seemingly strengthening the argument for prolonged or even perpetual copyright protection. Current DRM technologies are nevertheless far from ideal. With pervasive public disaffection, hackers working around the clock, and half-hearted backing from some heavyweight players, their future is overcast at best. Adding the cost of DRM deployment and enforcement, and the potential efficiency loss by mass consumer backlash as informed by behavioral economic analysis, it is only prudent for Taiwanese legislators to think harder on lengthening copyright terms.

伴隨著資訊通訊科技的急速進展與網路社群的快速演化，網際網路法（Cyberlaw）也在短短十來年內歷經不少變化，致學者們常有跟不上腳步之嘆。本特別報導的目的，尌是要對本領域的重大發展做一概括性的介紹。從網際網路的管制結構，到智慧財產權、言論與內容管制、隱私權及網路犯罪及社會衝擊等主題，我們都嘗詴從最新的案例發展、立法動態及學說與理論的演變等層面加以報導，並提供初步的分析，冀望能給有心瞭解網路法最新動態的各界先進一個實用的鳥瞰圖。 Cyberlaw has made tremendous progress in recent years, following the footsteps of the technology and community that define its mission. Legal scholars in the field often lament that what you teach today will be outdated tomorrow, with only slight exaggeration. This special report aims to introduce the latest development in the field through the discussion of recent cases, legislative activities, and theoretical progresses covering topics of infrastructure, intellectual properties, speech and content regulation, privacy, cybercrime and social impact.

文章概述了多模干涉耦合器的结构、工作原理和目前常用的分析方法,重点阐述了多模干涉耦合器的光传输特性.最后,详细介绍了多模干涉耦合器在光纤通信系统的多种用途.

光可变衰减器（VOA）作为波分复用（WDM）网络中关键的功率管理器件,能够实现信道均衡和自动增益控制功能.微电机械系统（MEMS）型和热光型VOA以其衰减范围宽、功耗低、体积小、易于集成等优点成为研究重点,热光特性极佳的聚合物材料则成为最引人注目的热光材料.文章对已有的VOA器件作了概括分类,介绍了各种MEMS型VOA,还从热光材料的角度,总结了聚合物材料的研究成果,对已见报道的基于聚合物的各种热光型VOA进行了重点的描述和分析.最后给出了VOA的两种网络实例.

提出了带有光子晶体环形谐振器（PCRR）的二维光子晶体弯折波导结构,采用有限差分时域法分别研究了带有3×3结构和带有4×4结构PCRR的光子晶体波导中电磁波的传输性能,分析了其结构整体介质柱相对介电常数取3组不同值时的传输性能,结果表明:使用带有PCRR的波导能实现电磁波的低损耗传输。此外,该结构还具有宽频带和结构紧凑等特点,在光通信器件制作、光子晶体集成制作等方面具有潜在的应用价值。

介绍了半导体全光开关的种类、特点和应用 .根据其结构形式 ,半导体全光开关可分为平面型和波导型两种 .根据其工作机理 ,波导型全光开关又可分为相移型和频移型两类 .同时 ,在已经报道的 1 0 0 Gbit/s以上的光传输系统实验中证明了全光交换的高效性

以 ATM为基础的无源光网络 （ ATM- PON）是未来实现宽带、多业务综合接入的重要技术手段。本文分析了 ATM- PON（ APON）系统的基本结构和各个组成部分、所支持的业务、实现系统所需要解决的关键技术及实现方法 ,同时对系统设计时所需考虑的一些重要问题进行了探讨。

实现光波导 -单模光纤的耦合是各种集成光学器件从实验室走向实用化的关键 ,耦合效率的高低直接影响到各种集成光学产品的性能。本文在分析影响耦合效率的主要因素的基础上 ,对现有的几种光波导 -光纤耦合方式作了进一步的分析和比较

密集波分复用 （ DWDM）是光纤通信中的关键技术 ,而阵列波导光栅 （ AWG）在波分复用系统中有着广泛的应用。本文综述了 AWG的原理以及它的发展和在光纤通信系统中的应用。

针对目前光纤通信系统对光开关的迫切需求 ,从器件的新工艺、新材料和新机理等方面综述了光开关与光开关列阵的研究进展状况 .

通过对器件结构进行优化设计和择优腐蚀技术 ,用 H3 PO4 - H2 O2 - H2 O系腐蚀液制作了能直接与单模光纤阵列相耦合的 MMI型 Ga As1× 4光功率分配器 .最后用 1 .3 μm波长的He- Ne激光进行了测试 ,发现该器件基本实现了功率均分要求 ,功率离散度为 0 .1 55d B.

文章提出一种关于非对称电极低串扰数字光开关的新型设计方案,在Y分叉后端引入S弯曲波导,通过在Y分叉处的非对称电极和弯曲波导的弯曲电极处施加一定的同步电压,实现了比没有S弯曲的开关更低的串扰。此种设计采用有限差分光束传播方法（FDBPM）来分析,模拟结果显示,在光波长为1.55μm时,开关电压8 V,串扰

三维集成光分束器在保持二维集成光学器件的可靠性和结构稳定性的基础上,有效扩大了单个芯片上的通信信道数,增加了集成密度,缓和了二维平面结构输入输出困难等问题。文章对三维集成光分束器的研究进展进行了概述,详细介绍了已有的三维集成光分束器的结构及制作方法,并对其性能进行了比较。最后,展望了三维集成光分束器的应用前景。

提出了一种新型的数字光开关电极结构.用两组不对称的电极作用于Z切割LiNbO3Y分叉波导上,其中一组电极从Y分叉波导的顶端就开始对波导进行作用,由于开关电极加强了对Y分叉强耦合区的作用,因此开关的串扰有了很大的降低.用光束传输法（BPM）软件模拟了该结构的性能,与对称电极结构相比,开关电压在6V左右时串扰降低了约6dB,开关电压在6～9V之间时开关串扰

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To evaluate the safety of navigation flight task scheduling schemes in forest fire rescue, safety evaluation indicators for navigation rescue task scheduling schemes were proposed by detecting the flight path conflicts of various general aircraft. Using an airspace grid model to model the rescue flight environment, and planning the rescue flight paths of aircraft with different performance constraints based on their respective task scheduling schemes, and conducting trajectory conflict detection to evaluate the safety of the task scheduling scheme. The simulation results show that this method has a 53. 8% improvement in time efficiency compared to the direct conflict detection algorithm, and a 6. 7% improvement in accuracy compared to the efficient spatiotemporal synchronous route conflict detection method. It can be seen that this method can efficiently and accurately predict track conflicts in rescue flights and evaluate the safety of task scheduling schemes, providing effective decision support for navigation rescue command and scheduling work. [ABSTRACT FROM AUTHOR]

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Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: The pathogenesis of degenerative scoliosis is unclear, and asymmetric degeneration of the main curvature region may be strongly associated with the onset and progression of scoliosis. Fully recognizing the degeneration of the main curvature region can help to inform more clinical treatment strategies. OBJECTIVE: To explore the relationship between the degree of degeneration in the main curvature region and the parameters of the spinal pelvis in patients with degenerative scoliosis and to understand its pathogenesis. METHODS: The medical records and imaging data of patients with degenerative scoliosis admitted to Department of Spine Surgery, Affiliated Hospital of Southwest Medical University from July 2018 to November 2023 were collected. The difference in the facet joint osteoarthritis between concave and convex sides of the superior and inferior facet joints of the apical vertebra was compared to analyze the correlation between parameters such as the severity of scoliosis, spinopelvic parameters, and facet joint osteoarthritis and to explore the influencing effect between parameters such as the severity of scoliosis, spinopelvic parameters, and facet joint osteoarthritis. RESULTS AND CONCLUSION: (1) Among the facet joint of the apical vertebra, concave side was more severe than convex side with facet joint osteoarthritis, with a statistically significant difference (P < 0.001). On the same side (concave or convex side) of the apical vertebra superior facet joint osteoarthritis was more severe than inferior facet joint osteoarthritis, with a statistically significant difference (P < 0.001). (2) The pelvic incidence decreased with decreasing lumbar lordosis (rs=0.509, P < 0.001). The lateral osteophyte difference increased with decreasing lumbar lordosis (rs=-0.285, P=0.033). The facet joint tropism increased with decreasing pelvic incidence (rs=-0.379, P=0.004). (3) The L5 tilt angle and disc angle were risk factors for increased main curve Cobb angle (B=1.012, P < 0.001; B=0.620, P=0.016). Pelvic incidence was a protective factor against the increase of the main curve Cobb angle (B=-0.264, P=0.003). (4) It is concluded that in cases of degenerative scoliosis, the degree of degeneration on the concave side was significantly heavier than that on the convex side at the apical vertebra. There was no significant correlation between the severity of facet joint tropism and facet joint osteoarthritis and the severity of scoliosis. Lumbar lordosis and pelvic incidence played key roles in maintaining the normal spinal sequence. Pelvic incidence was a protective factor against the increase of the main curve Cobb angle. L5 tilt angle and disc angle were the risk factors for the increase of the main curve Cobb angle. [ABSTRACT FROM AUTHOR]

In order to improve the wave attenuation performance of a box-type free-surface breakwater, the bottom contour of the box is transformed from flat to wave-contour bottom, so a kind of single wave-contour bottom free-surface breakwater is proposed. The physical model tests are carried out on single wave-contour bottom breakwater, and the wave attenuation performance of the model is studied by changing the location method, draft depth and wave steepness. By using Fluent software, the fixed model is numerically simulated under the condition of fluid viscosity, and the flow field details of the model are analyzed to explore the wave attenuation mechanism of the single wave-contour bottom model. The results show that: 1) The wave attenuation performance of the single wave-contour bottom breakwater in the fixed mode is significantly better than that in the anchored mode; 2) As the relative draft increases, the wave attenuation performance of the single wave-contour bottom breakwater improves. 3) The effect of wave steepness on the single wave-contour bottom breakwater is small. The wave attenuation performance of a single wave-contour bottom breakwater is better than that of a flat-bottom breakwater, and the increase of wave attenuation effect is up to 50%. [ABSTRACT FROM AUTHOR]

Zeolitic imidazolate framework materials (ZIFs) have demonstrated considerable promise in the field of CO2 adsorption and separation as a highly porous class of materials characterized by their high specific surface area, porosity and stable pore structure. In order to improve the CO2 adsorption capabilities of ZIFs, a dual approach involving pre-synthetic and post-synthetic functionalization was implemented. A one-pot synthesis method at ambient temperature was utilized to produce hollow bimetallic zeolitic imidazolate framework materials (Co/Zn-ZIF). Following this, tetraethylenepentamine (TEPA) was employed as a post-synthetic functionalization modifier through impregnation to synthesize TEPA@Co/Zn-ZIF, which was utilized for CO2 adsorption and circular experimentation. Comparative analysis of TEPA@Co/Zn-ZIF with ZIF-8 and Co/Zn-ZIF was carried out using XRD, FT-IR, SEM, and other analytical techniques. The results of the adsorption experiments indicated that the modified material displayed a significantly increased CO2 adsorption capacity of 2.53 mmol/g, representing a 60% improvement over ZIF-8 and a 33% improvement over Co/Zn-ZIF. This enhancement can be attributed to the improved electrostatic interaction between the active metal centers and CO2 following metal doping, as well as the chemisorption resulting from the acid-base reaction of -NH2 with CO2. Additionally, TEPA@Co/Zn-ZIF maintained a satisfactory adsorption effect of 1.99 mmol/g even after undergoing five cycles. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Cryptologic Research (2097-4116) is the property of Editorial Board of Journal of Cryptologic Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)