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Abstract Heterogeneous and monolithic integration of the versatile low-loss silicon nitride platform with low-temperature materials such as silicon electronics and photonics, III–V compound semiconductors, lithium niobate, organics, and glasses has been inhibited by the need for high-temperature annealing as well as the need for different process flows for thin and thick waveguides. New techniques are needed to maintain the state-of-the-art losses, nonlinear properties, and CMOS-compatible processes while enabling this next generation of 3D silicon nitride integration. We report a significant advance in silicon nitride integrated photonics, demonstrating the lowest losses to date for an anneal-free process at a maximum temperature 250 °C, with the same deuterated silane based fabrication flow, for nitride and oxide, for an order of magnitude range in nitride thickness without requiring stress mitigation or polishing. We report record low anneal-free losses for both nitride core and oxide cladding, enabling 1.77 dB m-1 loss and 14.9 million Q for 80 nm nitride core waveguides, more than half an order magnitude lower loss than previously reported sub 300 °C process. For 800 nm-thick nitride, we achieve as good as 8.66 dB m−1 loss and 4.03 million Q, the highest reported Q for a low temperature processed resonator with equivalent device area, with a median of loss and Q of 13.9 dB m−1 and 2.59 million each respectively. We demonstrate laser stabilization with over 4 orders of magnitude frequency noise reduction using a thin nitride reference cavity, and using a thick nitride micro-resonator we demonstrate OPO, over two octave supercontinuum generation, and four-wave mixing and parametric gain with the lowest reported optical parametric oscillation threshold per unit resonator length. These results represent a significant step towards a uniform ultra-low loss silicon nitride homogeneous and heterogeneous platform for both thin and thick waveguides capable of linear and nonlinear photonic circuits and integration with low-temperature materials and processes.

Abstract Physical unclonable functions (PUFs) have emerged as a promising encryption technology, utilizing intrinsic physical identifiers that offer enhanced security and tamper resistance. Multi‐level PUFs boost system complexity, thereby improving system reliability and fault tolerance. However, crosstalk‐free multi‐level PUFs remain a persistent challenge. In this study, a hierarchical PUF system that harnesses the spontaneous phase separation of silk fibroin /PVA blend and the random distribution of silicon‐vacancy diamonds within the blend is presented. The thermodynamic instability of phase separation and inherent unpredictability of diamond dispersion gives rise to intricate random patterns at two distinct scales, enabling time‐efficient hierarchical authentication for cryptographic keys. These patterns are complementary yet independent, inherently resistant to replication and damage thus affording robust security and reliability to the proposed system. Furthermore, customized authentication algorithms are constructed: visual PUFs authentication utilizes neural network combined structural similarity index measure, while spectral PUFs authentication employs Hamming distance and cross‐correlation bit operation. This hierarchical PUF system attains a high recognition rate without interscale crosstalk. Additionally, the coding capacity is exponentially enhanced using M‐ary encoding to reinforce multi‐level encryption. Hierarchical PUFs hold significant potential for immediate application, offering unprecedented data protection and cryptographic key authentication capabilities.

Abstract Constructing 2D/3D perovskite heterojunctions is effective for the surface passivation of perovskite solar cells (PSCs). However, previous reports that studying perovskite post-treatment only physically deposits 2D perovskite on the 3D perovskite, and the bulk 3D perovskite remains defective. Herein, we propose Cl2-dissolved chloroform as a multifunctional solvent for concurrently constructing 2D/3D perovskite heterojunction and inducing the secondary growth of the bulk grains. The mechanism of how Cl2 affects the performance of PSCs is clarified. Specifically, the dissolved Cl2 reacts with the 3D perovskite, leading to Cl/I ionic exchange and Ostwald ripening of the bulk grains. The generated Cl− further diffuses to passivate the bulk crystal and buried interface of PSCs. Hexylammonium bromide dissolved in the solvent reacts with the residual PbI2 to form 2D/3D heterojunctions on the surface. As a result, we achieved high-performance PSCs with a champion efficiency of 24.21% and substantially improved thermal, ambient, and operational stability.

Litopenaeus vannamei is one of the important crustaceans in aquaculture in China. In recent years, the shrimp culture industry has gradually developed into an intensive and high-density model, which can lead to environmental deterioration and large-scale outbreak of diseases. The widespread use of antibiotics has led to the increase of pathogen drug resistance, environmental pollution, and ecological imbalance, resulting in secondary pollution in the water. Probiotics are live microbial additives that promote good health and are environmentally sustainable and safe for use. They are often used as important substitutes for antibiotics. Brevibacillus laterosporu, as a biocontrol probiotic, is commonly used for disease control of crops, animals, and poultry, but its use is rarely reported in aquaculture. A 28-day breeding experiment was carried out with L. vannamei weighing (1.00±0.08) g, to study the effects of adding B. laterosporu FAS05 in the feed on the growth, disease resistance, and immunity of L. vannamei. The experiment was divided into four groups with three replicates in each group, and 50 shrimps in each replicate were fed with the experimental feed supplemented with 0 CFU/g (group C, as the control group), 105 CFU/g (group BL1), 107 CFU/g (group BL2), and 109 CFU/g (group BL3) of B. laterosporu FAS05. B. laterosporu FAS05 was isolated from the aquaculture pond with a low number of Vibrio in summer. The bacterium was added into the basic feed with fish meal, soybean meal, and corn meal as the main protein source, fish oil and phospholipid oil were added as the fat source, wheat flour as the main sugar source, and inorganic salts and vitamins as supplements. L. vannamei was purchased from a prawn farm in Weihai City, Shandong Province. The temperature was 25–28 ℃ and the salinity was 27–30. During the breeding experiment, eight shrimps were randomly selected in each tank every two weeks and their body length, weight, and plumpness were measured. The phagocytic activity assay was modified on the basis of the method reported by Delaporte et al (2003). Fl-1 channel flow cytometry was used to detect and analyze the offset of respiratory burst peak. The blood lymphocytes, serum, and hepatopancreas of shrimp were collected 24 hours after the experiment. The activities of immune related enzymes in hepatopancreas, such as superoxide dismutase (SOD), catalase (CAT), acid phosphatase (ACP), and alkaline phosphatase (ALP) levels, and the activities of immune related enzymes in serum, phenol oxidase (PO), and lysozyme (LZM), were determined by kits. The phagocytic activity was measured, and the assay was modified on the basis of Delaporte et al (2003). Fl-1 channel flow cytometry was used to detect and analyze the offset of respiratory burst peak. After the feeding test, a one-week infection test of Vibrio parahaemolyticus was carried out to determine disease resistance. The experimental results were expressed as Mean±SD. One-way ANOVA analysis was conducted for all data using statistical software SPSS 16.0, and significance level was defined as P < 0.05. LSD homogeneity of variance test was used to compare the differences between experimental treatment groups and control groups. The results showed that there was no significant difference in survival rate among all groups (P > 0.05), and the body length, body weight, and specific growth rate of shrimps in the BL1 and BL2 groups were significantly higher than those in group C (P < 0.05). Compared to that in group C, the abundance of Vibrio in the aquaculture water in the BL1 to BL3 groups was significantly decreased (P < 0.05). After infection with V. parahemolyticus, the survival rate of group C was about 45%, while the survival rate of the BL1 to BL3 groups was more than 80%; therefore, the survival rate of the BL1 to BL3 groups was significantly higher than that in group C (P < 0.05), and no significant difference was found among the BL1 to BL3 groups (P > 0.05). Compared to that of group C, the phagocytizing rate of shrimp blood cells in the BL1 to BL3 groups increased significantly (P < 0.05), while the production of ROS in blood cells decreased significantly (P < 0.05). The LZM, CAT and ACP activities of shrimps in the BL1 to BL3 groups were significantly higher than those in group C (P < 0.05). There was no significant difference in LZM and ACP activities among the BL1 to BL3 groups (P > 0.05). The PO of shrimps in the BL2 group was significantly higher than those in other groups (P < 0.05). The ALP and SOD in the BL1 and BL2 groups were significantly higher than those in group C and BL3 (P < 0.05). The above results showed that B. laterosporu FAS05 as a feed additive could promote the growth of shrimp, activate the immune system, improve disease resistance, and inhibit the growth of Vibrio in the surrounding environment. The reference dosage was 105 CFU/g. When the infection is serious, the dosage can be increased to 107 CFU/g to further improve the non-specific immunity of shrimp. The results of this study can provide basic data for the application of B. laterosporu FAS05 in shrimp culture and production.

Highlights Three bulky cation chlorides (PMACl, PEACl and NMACl) are used to modify the perovskite surface and form pure-anion 2D (PMA)2PbCl4, mixed-anion 2D (PEA)2Pb(I x Cl4-x ), and non-2D NMAI passivation layers, respectively. Intermolecular interactions between the bulky cations and the strength of cation-halide hydrogen bonds are critical to forming the three distinct passivation layers. Semi-transparent wide-bandgap perovskite solar cells (WBG-PSCs) with ITO as the back electrode show hysteresis-free PCE of 18.60% and V OC deficit of 0.49 V.

Here the author study Self-trapped exciton emission for multiphoton excited luminescence in ZnO nanoparticle which until now have not been explored. They provide a reason for the emission enhancement and apply these materials in optical imaging for a proof of concept.

Abstract Carrier recombination at the buried SnO2/perovskite interface limits the efficiency and stability of n‐i‐p‐structured perovskite solar cells (PSCs). Herein, we report an In2O3 interfacial layer with the distinctive structure of the monolithic compact/nanostructured bilayer. The partial hydrolysis nature of the In3+ ion enables the formation of nanorods on top of the compact In2O3 layer when spin‐coating the In(NO3)3 aqueous solution. This novel interfacial layer reduces the pinholes of the SnO2 film and increases the contact area between the perovskite and electron transport material. Therefore, PSCs with the incorporation of the interfacial layer demonstrate enhanced electron extraction and suppressed carrier recombination. Consequently, the champion device achieves a power conversion efficiency of 23.87% with a high fill factor of 82.14%. The optimized device also shows robust operational stability, retaining over 80% of the initial power conversion efficiency after working at the maximum power point for over 500 h under continuous one‐sun illumination.

As the only semi-enclosed sea area in China, the Bohai Sea is the strategic support and key support for the vigorous development of Beijing-Tianjin-Hebei Urban Agglomeration. The stability of its ecological environment is closely related to the well-being of coastal human beings, and its ecological environment restoration has become a research hotspot in recent years. This study focused on the analysis of the impact of global climate change and human activities on the ecological environment of the Bohai Sea, and comprehensively compared and analyzed the successful cases of ecological restoration in similar waters at home and abroad. Based on the characteristics and present situation of the Bohai Sea, some ecological restoration principles such as dynamic thinking and holistic preservation, habitat connectivity restoration principles, and different spatio-temporal scale restoration principle were proposed. It also pointed out that the ecological restoration of the Bohai Sea required rational planning of fishery economic activities, and overall consideration of the relationship between the Bohai Sea ecology and flushing water. It was recommended to use a forward-looking thinking model and concept, reasonably predict, plan, locate, configure, implement and maintain the stability of the Bohai Sea ecosystem, and focus on exploring the best adaptive management strategies to deal with global climate change.

Abstract Echocardiography, a simple and noninvasive tool, is the first choice for screening pulmonary hypertension (PH). However, accurate assessment of PH, incorporating both the pulmonary artery pressures and additional signs for PH remained unsatisfied. Thus, this study aimed to develop a machine learning (ML) model that can automatically evaluate the probability of PH. This cohort included data from 346 (275 for training set and internal validation set and 71 for external validation set) patients with suspected PH patients and receiving right heart catheterization. Echocardiographic images on parasternal short axis‐papillary muscle level (PSAX‐PML) view from all patients were collected, labeled, and preprocessed. Local features from each image were extracted and subsequently integrated to build a ML model. By adjusting the parameters of the model, the model with the best prediction effect is finally constructed. We used receiver‐operating characteristic analysis to evaluate model performance and compared the ML model with the traditional methods. The accuracy of the ML model for diagnosis of PH was significantly higher than the traditional method (0.945 vs. 0.892, p = 0.027 [area under the curve [AUC]]). Similar findings were observed in subgroup analysis and validated in the external validation set (AUC = 0.950 [95% CI: 0.897−1.000]). In summary, ML methods could automatically extract features from traditional PSAX‐PML view and automatically assess the probability of PH, which were found to outperform traditional echocardiographic assessments.

Perovskite structure is disturbed by environmental moisture, limiting the device performance. Here, Wei et al. monitor the effect of moisture during the growth by N2-protected characterization techniques, and obtain an operationally stable perovskite solar cell with efficiency approaching 24%.

Abstract Carbon nanogels (CNGs) with dual ability of reactive oxygen species (ROS) imaging and photodynamic therapy have been designed with self‐assembled chemiluminescent carbonized polymer dots (CPDs). With efficient deep‐red/near‐infrared chemiluminescence (CL) emission and distinctive photodynamic capacity, the H2O2‐driven chemiluminescent CNGs are further designed by assembling the polymeric conjugate and CL donors, enabling an in vitro and in vivo ROS bioimaging capability in animal inflammation models and a high‐performance therapy for xenograft tumors. Mechanistically, ROS generated in inflammatory sites or tumor microenvironment can trigger the chemically initiated electron exchange luminescence in the chemical reaction of peroxalate and H2O2, enabling in vivo CL imaging. Meanwhile, part of the excited‐state electrons will transfer to the ambient H2O or dissolved oxygen and in turn lead to the type I and type II photochemical ROS production of hydroxyl radicals or singlet oxygen, endowing the apoptosis of tumor cells and thus enabling cancer therapy. These results open up a new avenue for the design of multifunctional nanomaterials for bioimaging and antienoplastic agents.

Abstract Tin oxide (SnO2) is widely used as an electron transport layer (ETL) to fabricate planar perovskite solar cells (PSCs) due to their easy and low‐temperature processed fabrication. Enhancing carrier extraction and energy level alignment at the perovskite/SnO2 interface is vital to improve the device performance further. Here, we demonstrate a double‐layered SnO2/ NH4Cl‐SnO2 as an efficient ETL. The top NH4Cl‐SnO2 shows a better energy level alignment with the perovskite and reduced alkalinity to avoid perovskite degradation, resulting in enhanced electron extraction efficiency and interfacial stability. Furthermore, the bottom SnO2 retains the capability of efficient carrier transport to avoid charge accumulation. As a result, we achieve a champion device with a power conversion efficiency of 21.01% and negligible hysteresis. Moreover, the corresponding PSCs show much improved operational stability, retaining 80% of the initial efficiency after 1090 hours of operation at the maximum power point under 1‐sun illumination. While the pristine SnO2 based PSCs only insist on 278 hours before losing 20% of the initial efficiency.

The pathogenesis of oral lichen planus (OLP) remains unclear, and microbial dysbiosis has been proposed to play a role in the pathogenesis of OLP. Oral mucosal swabs from 77 OLP patients and 76 healthy subjects were collected. The bacterial community among the OLP lesion, the adjacent normal mucosal, and the oral mucosal surface in healthy people were analyzed by 16S sequencing. The factor of gender and age that may affect the flora distribution of OLP patients were explored. Results indicate no significant difference in microbiota between OLP and the adjacent group. Compared with the healthy group, Neisseria, Haemophilus, Fusobacterium, Porphyromonas, Rothia, Actinomyces, and Capnocytophaga significantly increased in the OLP group. Actinomyces increased in male OLP patients, and the other six bacteria increased in female OLP patients. In female OLP patients, Lautropia and Dialister were positively correlated with age. While in male OLP patients, Moraxella, Porphyromonas, and Fusobacterium were positively correlated with age. Functional enrichment analysis suggested that abnormal energy metabolism related to ATP synthases, abnormal transport and metabolism of glycans, amino acids, and vitamins, and disorders of the local immune microenvironment might exist in OLP lesion.

Abstract Carbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long‐lasting pursuit for CDs. Herein, CDs with near‐unity emission efficiency are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead to the formation of bound excitons and the symmetry break of the π–electron conjugation. The short radiative lifetimes (

The integration of stabilized lasers, sources that generate spectrally pure light, will provide compact, low-cost solutions for applications including quantum information sciences, precision navigation and timing, metrology, and high-capacity fiber communications. We report a significant advancement in this field, demonstrating stabilization of an integrated waveguide Brillouin laser to an integrated waveguide reference cavity, where both resonators are fabricated using the same CMOS-compatible integration platform. We demonstrate reduction of the free running Brillouin laser linewidth to a 292 Hz integral linewidth and carrier stabilization to a 4.9 × 10−13 fractional frequency at 8 ms reaching the cavity-intrinsic thermorefractive noise limit for frequencies down to 80 Hz. We achieve this level of performance using a pair of 56.4 × 106 quality factor Si3N4 waveguide ring-resonators that reduce the high-frequency noise by the nonlinear Brillouin process and the low-frequency noise by Pound–Drever–Hall locking to the ultra-low loss resonator. These results represent an important step toward integrated stabilized lasers with reduced sensitivity to environmental disturbances for atomic, molecular, and optical physics (AMO), quantum information processing and sensing, and other precision scientific, sensing, and communications applications.

In this work the authors demonstrate on-chip integration of Brillouin lasing operating at visible wavelengths, with engineered design for stable output. This technical and scientific advance will help develop integrated light sources for quantum computing or atomic and molecular spectroscopy.

The new business formats, new ecosystem cooperation challenges and opportunities brought by the transformation of communication technology in the 5G and cloud network integration era of telecom operators were analyzed.Combined with the current situation of China Telecom information construction, the construction scheme of enterprise middle platform which is suitable for China Telecom was put forward.Based on the construction idea of“light portal, variant application, stable middle platform”, the construction scheme of business platform was focused on.Through introducing application layer and building the middle platform, the fast and accurate response of front-end business and market were realized.And through the case introduction, the feasibility and superiority of the scheme was verified.

Integrated photonic all-waveguide resonators are a critical component in many future applications. Here the authors develop an optimized photonic all-waveguide resonator with an ultra-high quality factor, Q, of almost half a billion, and a narrow sub-MHz linewidth.

In recent years,the development of IoT is in full swing.It is of great significance for the current transformation and development of domestic telecom operators.In this context,the business model is very important for operators to achieve “overtaking” in the IoT industry.Based on the analysis of the operation status of the IoT of operators,the development strategies of the IoT industry at home and abroad were compared,and three different development strategies was summarized.Telecom operators had advantages in customers,channels and other aspects,but limited by many factors.It was suggested that in constructing the development model,they should follow the principle of gradual progress,fully according to their own enterprise positioning,combined with national policies,pay attention to their own positioning in the industry chain of the IoT,pay attention to risks,and ultimately realize it.Better development model improve the current situation of increasing revenue in the telecommunications industry.

Besides device operational stability, the color stability is also an important challenge for the perovskite light-emitting diodes, especially the blue ones. Here Jiang et al. report the most efficient and color stable pure-blue perovskite LEDs so far, with a half-lifetime of 14.5 minutes.

As the basic spatial unit of urban planning and management, it is necessary to know the distribution status of urban functional areas in time. Due to the complexity of urban land use, it is difficult to identify the urban functional areas using only remote sensing images. Social perception data can provide additional information for the identification of urban functional areas. However, the sources of remote sensing data and social perception data differ, with some differences in data forms. Existing methods cannot comprehensively consider the characteristics of these data for functional area identification. Therefore, in this study, we propose a multimodal deep learning method with an attention mechanism to fully utilize the data features of these two modalities and apply it to the recognition of urban functional areas. First, the pre-processed remote sensing images, points of interest, and building footprint data are divided into block-based target units of features by the road network. Next, the remote sensing image features and social perception data features of the target unit are extracted separately using a two-branch convolutional network. Finally, features are extracted sequentially along two separate dimensions, being channel and spatial, to generate an attention weight map for the identification and classification mapping of urban functional areas. The model framework was finally applied to the Ningbo dataset for testing, and the recognition accuracy was above 93%. The experimental results deduce, as a whole, that the prediction performance of the deep multimodal fusion model framework with an attention mechanism is comparatively superior to other traditional methods. It can provide a reference for the classification of urban land use and provide data support for urban planning and management.

Under polycyclic aromatic hydrocarbon (PAH) pollution conditions (149.17–187.54 mg/kg), we had found the dominant flora of PAHs by observing the response of the soil microbial community after planting purple coneflower (Echinacea purpurea (L.) Moench). In this study, pot experiments were conducted in a growth chamber to explore the changes in the rhizosphere microbial community structure during remediation of heavily PAH-contaminated soil using purple coneflower (Echinacea purpurea (L.) Moench). The phospholipid fatty acid (PLFA) content in the soil was measured during four periods before and after planting, and the results showed that: (i) at 120 days, E. purpurea can regulate the microbial community structure but had no significant effect on soil microbial diversity, (ii) at 120 days, the number of PLFAs characterizing actinomycetes, bacteria, and fungi increased, and both Gram-negative bacteria and Arbuscular mycorrhizal fungi (AMF) were significant with the observed PLFA level (p < 0.05), and (iii) the results indicated that AMF and Gram-negative bacteria represent some of the main factors that can promote the degradation of PAHs. The results obtained in this work are important to future research on PAH-degradation-functional genes and degradation mechanisms of the selection of flora.

The effect of network structure on dynamic compressive fatigue behavior and static compressive mechanical properties of styrene-butadiene rubber (SBR) were investigated. A series of SBR compounds with different amounts of sulfur and dicumyl peroxide (DCP) were prepared, and their crosslinking densities were calculated using the Flory–Rehner equation. Compressive fatigue resistance and creep behavior of the vulcanizates were performed on a mechanical testing and simulation (MTS) machine. The fatigue damage surface of SBR vulcanizates before and after a dynamic compressive fatigue test was observed with a scanning electron microscopy (SEM). The results suggested that the surface of the samples was badly damaged as the number of compressive cycles increased. By comparison, compressive fatigue caused less surface damage to sulfur-cured SBR than to peroxide-cured SBR. The peroxide-cured SBR samples showed higher energy dissipation than sulfur-cured SBR during cyclic compression. The peroxide-cured SBR showed lower creep strain and compression set than the sulfur-cured SBR. The -Sx- linkages provided by the sulfur curing system allow dynamic compressive deformation but suffer from poor static compressive resistance. However, the carbon-carbon linkages from DCP are irreversible and provide higher resistance to static compressive stress, but they do not show obvious dynamic compressive fatigue resistance.

In order to cut down on costs to the greatest possible extent, enterprises hope to distribute goods to different customers at the lowest costs possible. Based on this, this paper proposes an optimal location method for an intelligent transportation logistics warehouse. This scheme combines a variety of complex mechanisms to allow IoT devices to provide input. The scheme makes full use of the irreducibility of a blockchain system to promote the development and design of blockchain logistics applications. This method is aimed at tracking the progress of transportation of products in the whole supply chain. Experimental results show that, compared with traditional methods, the optimal positioning method has the advantages of fewer calculations, a high positioning accuracy, and a low overall cost, and it obtains the best warehouse positioning results. Based on the Internet of Things and blockchain technology, the application of intelligent logistics systems enables enterprises to intuitively understand their current inventory and the transportation status of goods, thus better controlling changes in enterprise resources.

The performance of solar cells based on molecular electronic materials is limited by relatively high nonradiative voltage losses. The primary pathway for nonradiative recombination in organic donor-acceptor heterojunction devices is believed to be the decay of a charge-transfer (CT) excited state to the ground state via energy transfer to vibrational modes. Recently, nonradiative voltage losses have been related to properties of the charge-transfer state such as the Franck-Condon factor describing the overlap of the CT and ground-state vibrational states and, therefore, to the energy of the CT state. However, experimental data do not always follow the trends suggested by the simple model. Here, we extend this recombination model to include other factors that influence the nonradiative decay-rate constant, and therefore the open-circuit voltage, but have not yet been explored in detail. We use the extended model to understand the observed behavior of series of small molecules:fullerene blend devices, where open-circuit voltage appears insensitive to nonradiative loss. The trend could be explained only in terms of a microstructure-dependent CT-state oscillator strength, showing that parameters other than CT-state energy can control nonradiative recombination. We present design rules for improving open-circuit voltage via the control of material parameters and propose a realistic limit to the power-conversion efficiency of organic solar cells.

Despite the technical success of existing assistive technologies, for example, electric wheelchairs and scooters, they are still far from effective enough in helping those in need navigate to their destinations in a hassle-free manner. In this paper, we propose to improve the safety and autonomy of navigation by designing a cutting-edge autonomous scooter, thus allowing people with mobility challenges to ambulate independently and safely in possibly unfamiliar surroundings. We focus on indoor navigation scenarios for the autonomous scooter where the current location, maps, and nearby obstacles are unknown. To achieve semi-LiDAR functionality, we leverage the gyros-based pose data to compensate the laser motion in real time and create synthetic mapping of simple environments with regular shapes and deep hallways. Laser range finders are suitable for long ranges with limited resolution. Stereo vision, on the other hand, provides 3D structural data of nearby complex objects. To achieve simultaneous fine-grained resolution and long range coverage in the mapping of cluttered and complex environments, we dynamically fuse the measurements from the stereo vision camera system, the synthetic laser scanner, and the LiDAR. We propose solutions to self-correct errors in data fusion and create a hybrid map to assist the scooter in achieving collision-free navigation in an indoor environment.