Accurately predicting multi-energy loads is essential for optimizing the dispatch and economic operation of integrated energy systems (IES). However, existing load forecasting methods have two main limitations: (1) they fail to consider complex correlations between auxiliary features; (2) single time-scale feature extraction can result in loss critical temporal information. Therefore, remains a challenging task. To overcome these limitations, this paper proposes novel method based on...

Predicting photovoltaic (PV) power generation is a crucial task in the field of clean energy. Achieving high-accuracy PV prediction requires addressing two challenges current deep learning methods: (1) In prediction, traditional methods often generate predictions for long sequences one by one, significantly impacting efficiency model predictions. As scale stations expands and demand increases, this sequential approach may lead to slow speeds, making it difficult meet real-time requirements....

Accurate forecasting of multienergy loads is essential for designing, operating, scheduling, and managing integrated energy systems (IESs). Recent research suggests that transformer models have the potential to improve long-sequence predictions. However, existing often emphasize capturing temporal dependencies while neglecting crucial among different variables necessary load forecasting. Moreover, encounter challenges related quadratic time complexity significant memory usage, which hinder...

We demonstrate an external-cavity laser system using anti-reflection coated diode as gain medium with about 60 nm fluorescence spectrum, and a Rb Faraday anomalous dispersion optical filter (FADOF) frequency-selecting element transmission bandwidth of 1.3 GHz. With 6.4% feedback, single stable longitudinal mode is obtained linewidth 69 kHz. The wavelength this operating within the center highest peak FADOF over current range from 55 mA to 142 temperature 15 °C 35 °C, thus it immune...

Driven by economic incentives, illegal electricity consumers pose significant threats to the and security aspects of power system illicitly accessing or manipulating electrical resources. With widespread adoption Advanced Metering Infrastructure (AMI), researchers have turned leveraging smart meter data for theft detection. However, existing models rely on methods that model a single load curve cannot capture temporal dependencies, periodicity, underlying features between consumption cycles....

Data is often collected over a distributed network, but in many cases, so voluminous that it impractical and undesirable to collect central location. Instead, we must perform computations the data, guaranteeing high quality answers even as new data arrives. In this paper, formalize study problem of maintaining clustering such continuously evolving. particular, our goal minimize communication computational cost, still providing guaranteed accuracy clustering. We focus on k-center clustering,...

We propose the mechanism of an active Faraday optical clock, and experimentally demonstrate frequency standard based on narrow bandwidth atomic filter by method velocity-selective pumping cesium vapor. The center is determined 6 (2)S(1/2) F=4 to (2)P(3/2) F'=4 5 crossover transition line. heterodyne beat between two similar independent setups shows that linewidth reaches 281(23) Hz, which 1.9×10(4) times smaller than natural 852-nm maximum emitted light power 75 μW. reported here has...

Strong demands for public wireless broadband services will require more capacity than even that can be,supplied by advanced mobile cellular systems like the Universal Mobile Telecommunication System. The increasing popularity of WLANs has prompted network operators to consider their deployment in high-density usage areas indoor/outdoor hotspots provide complementary access UMTS networks. In order consistent QoS control over an integrated and WLAN system, a policy-based multidomain management...

The 2.5-dimensional closed loop is investigated to constitute a novel miniaturized frequency-selective surface (FSS) whose electric size of one unit cell as small 0.048 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> × . For miniaturization, two pairs orthogonal split square rings are connected in series by four vias array the FSS cell. Thus, this exhibits polarized insensitivity for different incident angles. An equivalent circuit...

With the ongoing advancement of electric power Internet Things (IoT), traditional inspection methods face challenges such as low efficiency and high risk. Unmanned aerial vehicles (UAVs) have emerged a more efficient solution for inspecting facilities due to their maneuverability, excellent line-of-sight communication capabilities, strong adaptability. However, UAVs typically grapple with limited computational energy resources, which constrain effectiveness in handling computationally...

In this paper, a testing method special for phase change building materials was designed the temperatures, latent heat of change, specific solid/liquid and so on. The weight sample could be 5Kg or even more. Even if amount samples huge, can still homogenous during test, avoiding test data errors caused by preparation. Moreover, in method, any contrast were not used. related to calculated directly from records, which eliminated difference between conditions process samples. Therefore, results...

For various advantages including better utilization of radio spectrum (through frequency reuse), lower mobile transmit power requirements, and smaller cheaper base station equipment, future wireless multimedia networks are likely to adopt micro/picocellular architectures. A consequence using small cell sizes is the increased rate call handoffs as mobiles move between cells during holding times calls. In a network supporting services, not only increases signaling load on network, but makes it...

Emerging applications in sensor systems and network-wide IP traffic analysis present many technical challenges. They need distributed monitoring continuous tracking of events. have severe resource constraints not only at each site terms per-update processing time archival space for highspeed streams observations, but also crucially, communication collaborating on the task. These elements been addressed a series recent works. A fundamental issue that arises is one cannot make "uniqueness"...

A novel frequency selective surface (FSS) has been designed based on 2.5‐dimensional (2.5D) closed loop for miniaturisation. Compared with the previous FSSs in literature, proposed FSS is smaller (0.048 λ 0 × 0.048 ) and shows almost same transmission coefficient different polarisations incident angles. prototype of fabricated measured. The results experiment show a consistency simulated ones.

A dual parameter optical fiber sensor for temperature and pressure discrimination has been proposed experimentally realized. tapered Bragg grating (tapered-FBG) an extrinsic Fabry-Perot interferometer with a ball shape (ball-EFPI) are the two main sensing structures. The taper is fabricated by elongating it during arc-discharge provided fusion splicer. Then, femtosecond laser used to inscribe first-order in region, adopting point-by-point direct-writing technique. ball-EFPI using chemical...

In recent years, with the rapid development of inertial measurement unit (IMU) technology, wireless body area network and pattern recognition theory, human motion based on wearable technology has gradually gained attention researchers. this paper, activity method sensor information fusion is studied. On existing system platform, time domain analysis frequency are used to distinguish daily body, data acquisition experiment, features, features attitude angles as identification features. that...

An all-optical locking technique without extra electrical feedback control system for a semiconductor laser has been used in stabilizing the frequency to hyperfine crossover transition of 87Rb 5(2)S(1/2), F = 2 → 5(2)P(3/2), F' 2, 3 with 1 MHz level accuracy. The optical signal is generated from narrow-band Faraday anomalous dispersion filter (FADOF) nonlinear saturation effect. peak transmission FADOF corresponding 18.6 %. bandwidth as wide 38.9 changes. After locking, fluctuation reduced...

We demonstrate a Cs FADOF (Faraday anomalous dispersion optical filter) with single transmission peak resonant the 6S(1/2), F = 4 → 7P(3/2), F' 3, 4, 5 transition at 455 nm. The filter achieves of 86%. With technique saturated absorption spectra, we obtain bandwidth peak, which is 1.5 GHz. While most other FADOFs operate frequencies far from absorption, have realized can provide light exactly atomic transitions high transmission. also find that, particular temperature, achieve rather than...