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Sodium storage performance of a high entropy sulfide anode with reduced volume expansion

J. Mater. Chem. A, 2024, 12,30629-30641
DOI: 10.1039/D4TA05122J, Paper
Jianping Ma, Jinyi Guo, Weizheng Li, Xiaohan Yang, Chengde Huang
The introduction of a high-entropy structure into multi-metal sulfides has successfully mitigated volume expansion during the cycling process of sodium-ion batteries!
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A C8P monolayer with cross-sp-hybridized phosphorus atoms and ultrahigh energy density as a K-ion battery anode

J. Mater. Chem. A, 2024, 12,30842-30849
DOI: 10.1039/D4TA04961F, Paper
Xu Yan, Sheng Wang, Shicong Ding, Javed Rehman, Yong Liu, Guochun Yang
The proposed C8P monolayer and its derivatives are promising candidates as anode materials for high performance K-ion batteries.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Pre-lithiation carbon anodes mitigating potassium loss toward for high-performance potassium-ion energy storage devices

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D4TA06451H, Paper
Danni Du, Qingyuan Liu, Jing Gao, Yuying Qin, Xiaobo Jiang, Yuanchang Shi, Minghao Hua, Xiaohang Lin, Zhiwei Zhang, Chengxiang Wang, Long-Wei Yin, Rutao Wang
Pre-potassiation technologies with the functions of providing additional potassium sources and/or mitigating potassium loss during cycling, make them capable of enhancing the energy density and cycling life of potassium-ion capacitors...
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Rare handscrolls of artist Benode Behari Mukherjee on show in Kochi

The exhibition, organised by the Kolkata Centre for Creativity along with the Kerala Lalithakala Akademi and Gallery Rasa, pays tribute to artist Benode Behari Mukherjee, one of the pioneers of Indian modern art




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In situ formation of a Co-MOF/Ti–Fe2O3 photoanode for efficient photoelectrochemical water splitting

J. Mater. Chem. C, 2024, 12,17603-17610
DOI: 10.1039/D4TC01728E, Paper
Kaikai Ba, Hongda Li, Kai Zhang, Yanhong Lin, Wanchun Zhu, Tengfeng Xie
The cocatalyst Co-MOF significantly enhances charge separation and transfer in the Ti–Fe2O3 photoanode, achieving a photocurrent density of 3.9 mA cm−2 at 1.23 V vs. RHE.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Robust Dihydroxyacetone Production via Photoelectrochemical Glycerol Oxidation using Oxygen Vacant BiVO4 Photoanode

J. Mater. Chem. C, 2024, Accepted Manuscript
DOI: 10.1039/D4TC04085F, Paper
Yeji Lee, Yeseul Jo, Youn Jeong Jang
Photoelectrochemical conversion of glycerol into high-value dihydroxyacetone offers a sustainable approach via BiVO4 semiconductor materials, which manifest highly photoactive properties. However, dihydroxyacetone production poses a limitation due to poor charge...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Te doped 1T/2H-MoSe2 nanosheets with rich defects as advanced anode materials for high-rate sodium ion half/full batteries

Inorg. Chem. Front., 2024, 11,2017-2028
DOI: 10.1039/D4QI00259H, Research Article
Zhiqi Li, Jiawen Yan, Qiming Li, Ao Xu, Jianchao Sun, Yijing Wang, Xiaoyu Zhang, Xueqin Sun, Fuyi Jiang, Yanli Zhou
MoSe2 with a two-dimensional layer-like structure has been considered a promising anode material for sodium-ion batteries (SIBs) on account of its high capacity and rich reserves on Earth.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Correction: In situ construction of a continuous ionic conductive coating for a high-performance Li3VO4 anode

Inorg. Chem. Front., 2024, 11,2187-2187
DOI: 10.1039/D4QI90020K, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Lulu Wang, Cheng Zeng, Jianing Liang, Chun Zhai, Hao Liu, Tianyou Zhai, Huiqiao Li
The content of this RSS Feed (c) The Royal Society of Chemistry




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Recent progress in aluminum anodes for high-performance rechargeable aqueous Al-ion batteries

Inorg. Chem. Front., 2024, 11,2246-2259
DOI: 10.1039/D4QI00468J, Review Article
Le Li, Shaofeng Jia, Yue Shi, Conghui Wang, Hengwei Qiu, Yongqiang Ji, Minghui Cao, Dan Zhang
This review discusses the recent advances in the aluminum metal anodes, alloy anodes, and intercalated anodes used for rechargeable aqueous Al-ion batteries.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Structural and electrochemical properties of Tan+1Cn MXene anode materials for metal-ion batteries

Inorg. Chem. Front., 2024, Advance Article
DOI: 10.1039/D3QI02335D, Research Article
Jiayi Guo, Danni Hu, Chenqi Bai, Lina Xu, Hongping Xiao, Qian Shi, Xinhua Li, Xi'an Chen, Yingjin Ma, Guoyong Fang
Density functional theory calculations show that Tan+1Cn and Tan+1CnO2 MXenes have excellent open circuit voltages and maximum storage capacities for use in alkali metal-ion batteries.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Total synthesis of spiro Ganoderma meroterpenoids spiroapplanatumines B, D, F, and H

Org. Chem. Front., 2024, 11,6333-6339
DOI: 10.1039/D4QO01147C, Research Article
Jia-Hao Zhang, Wen-Cai Luo, Wen-Tao Chen, Yu-Tao He, Ya-Jian Hu
The first total synthesis of spiroapplanatumines B, D, F, and H as well as the possibly undiscovered natural product spiroapplanatumine R has been achieved.
The content of this RSS Feed (c) The Royal Society of Chemistry




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High Zn(002)-preferential orientation enabled by a proton additive for dendrite-free zinc anodes

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE03276D, Paper
Yating Li, Xiaohui Ma, Xi Zhang, Fengyi Zhang, Qiong Wang, Qiang Guo, Jinlong Liu, Yonggang Wang, Jianhang Huang, Yongyao Xia
A zinc anode with high Zn(002)-preferential orientation can be achieved using a universal proton additive, which has been shown to effectively suppress dendrite formation in aqueous zinc batteries.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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A fluoride gradient, Zn-salt-rich hydrophobic interphase formed by a zincophilic, hydrophobic, anion-philic polymer “skin” for an anode-free solid Zn battery

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE01978D, Paper
Xinpeng Han, Jinpeng Han, Kang Ma, Jiaqi Wen, Lianpeng Li, Daliang Han, Jie Sun
A Zn2+·OC group-derived contact ion pair (CIP)/aggregate (AGG)-rich electrolyte is fabricated to generate a fluoride gradient, Zn-salt-rich hydrophobic solid electrolyte interface (SEI) layer with ultrahigh mechanical properties.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Regulating local chemical softness of the collector to homogenize Li deposition for anode-free Li-metal batteries

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE03673E, Paper
Jiaming Zhu, Cong Kang, Xiangjun Xiao, Ya Mao, Ying Luo, Yuheng Wang, Quansheng Zhang, Yulin Ma, Chunyu Du, Shuaifeng Lou, Fanpeng Kong, Jingying Xie, Geping Yin
A heterogeneous collector featuring hard-base sites and soft-acid sites is proposed, which significantly reduces nucleation and growth barriers, with no dendrite formation. This finding offers a pathway to rationally design highly efficient collectors for AFLMBs.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Superhydrophobic and robust hetero-metal-polymer hybrid interphase enables deep-cycling zinc metal anodes

Energy Environ. Sci., 2024, Accepted Manuscript
DOI: 10.1039/D4EE04122D, Paper
Mengyu Liu, Wentao Yuan, Xinghan Qu, Xianghao Ru, Xiaotong Li, Tingxuan Wang, Xinke Wang, Yuanyuan Wang, Yongchang Liu, Ning Zhang
Realizing stable zinc (Zn) metal anodes under deep cycling conditions is the prerequisite for practical rechargeable Zn batteries but remains a significant challenge, due to severe water erosion and dendrite...
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Interplay of intercalation dynamics and lithium plating in monolithic and architectured graphite anodes during fast charging

Energy Environ. Sci., 2024, 17,8702-8721
DOI: 10.1039/D4EE02211D, Paper
Open Access
Aleksandar S. Mijailovic, Seth Waag-Swift, Guanyi Wang, Bingyao Zhou, Mei Luo, Wenquan Lu, Qingliu Wu, Brian W. Sheldon
Fast charging of high-capacity anodes is challenging due to lithium plating reactions, which lead to poor cycling performance and safety concerns.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Bicontinuous-phase electrolyte for a highly reversible Zn metal anode working at ultralow temperature

Energy Environ. Sci., 2024, 17,8966-8977
DOI: 10.1039/D4EE02815E, Paper
Mi Xu, Beinuo Zhang, Yudong Sang, Dan Luo, Rui Gao, Qianyi Ma, Haozhen Dou, Zhongwei Chen
A bicontinuous-phase electrolyte with a well-balanced solvation sheath is proposed, which delivers fast desolvation kinetics and generates a uniform in situ solid electrolyte interface, thus achieving a long-lasting Zn anode at low temperatures.
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Weaving electron-rich alkynes: a durable in situ skin for stabilizing zinc anodes

Energy Environ. Sci., 2024, Advance Article
DOI: 10.1039/D4EE03164D, Paper
Xin Liu, Weimian Zhang, Ying Liu, Xiaodong Li, Deyi Zhang, Kun Wang, Lifeng Liu, Changshui Huang
An electron-rich alkyne of thiophdiyne (e-TDYP) is engineered in situ onto a zinc anode to regulate the EDL properties. The synergy between the conjugated thiophene and alkyne groups of e-TDYP facilitates the desolvation and ion-capture.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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The Science Quiz: AI in science, from neurons to nodes




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Nodes Screensaver




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New 3D printing technique for environmental nanodevices

A nanoscale 3D printing technique could be useful for nanomanufacturing processes with environmental applications. The authors of a new study have found a way to control their printing process by incorporating a simple pattern into the printing surface. They say their technique could reduce costs for nanoscale printing.




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OPVIUS Demonstrates OPV-Based, Stand-Alone IoT Sensor Nodes

After the most recent successfully completed project for OPV optimization with regard to weak light behavior, OPVIUS has now developed an IoT platform based on this. The platform allows the integration of an OPV-based power supply into IoT sensors.




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NODE.Health Announces the 'From Innovation to Transformation' (FITT) Award Winners

NODE.Health presented evidence based awards for digital transformation




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Shim uses node.js to test sites on multiple browsers

Shim was developed within the Boston Globe’s media lab as a way to study how Web sites look on various devices and browsers. A laptop intercepts all wifi traffic – this is redirected to a custom node.js server – which inserts a javascript, or “shim,” at the head of each web page that is visited. Read the rest...




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Node.js – The objective is absolutely fast I/O

Node.js employs an event-driven architecture and a non-blocking I/O model, and it provides some blindingly fast performance to some types of data-intensive Web apps. It is about JavaScript on the server side. LinkedIn, Yahoo and eBay are among ardent Node.js users, and none other than Microsoft has discussed end-to-end JavaScript coverage on its Azure cloud. Read the rest...




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Exploring Node.js Internals

Since the introduction of Node.js by Ryan Dahl at the European JSConf on 8 November 2009, it has seen wide usage across the tech industry. Companies such as Netflix, Uber, and LinkedIn give credibility to the claim that Node.js can withstand a high amount of traffic and concurrency. Armed with basic knowledge, beginner and intermediate developers of Node.js struggle with many things: “It’s just a runtime!” “It has event loops!




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Anonymized GCN: A Novel Robust Graph Embedding Method via Hiding Node Position in Noise. (arXiv:2005.03482v1 [cs.LG])

Graph convolution network (GCN) have achieved state-of-the-art performance in the task of node prediction in the graph structure. However, with the gradual various of graph attack methods, there are lack of research on the robustness of GCN. At this paper, we will design a robust GCN method for node prediction tasks. Considering the graph structure contains two types of information: node information and connection information, and attackers usually modify the connection information to complete the interference with the prediction results of the node, we first proposed a method to hide the connection information in the generator, named Anonymized GCN (AN-GCN). By hiding the connection information in the graph structure in the generator through adversarial training, the accurate node prediction can be completed only by the node number rather than its specific position in the graph. Specifically, we first demonstrated the key to determine the embedding of a specific node: the row corresponding to the node of the eigenmatrix of the Laplace matrix, by target it as the output of the generator, we designed a method to hide the node number in the noise. Take the corresponding noise as input, we will obtain the connection structure of the node instead of directly obtaining. Then the encoder and decoder are spliced both in discriminator, so that after adversarial training, the generator and discriminator can cooperate to complete the encoding and decoding of the graph, then complete the node prediction. Finally, All node positions can generated by noise at the same time, that is to say, the generator will hides all the connection information of the graph structure. The evaluation shows that we only need to obtain the initial features and node numbers of the nodes to complete the node prediction, and the accuracy did not decrease, but increased by 0.0293.




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What’s New With Node? Interview With Bethany Griggs, Node.js Technical Steering Committee

Node.js 14 is available now. We wanted to get more context and details about the state of Node, and why developers should care about Node.js 14. We talked with Bethany Griggs, Node.js Technical Steering Committee member and Open-source Engineer at IBM, to find out more. 

Bethany has been a Node Core Collaborator for over two years. She contributes to the open-source Node.js runtime and is a member of the Node.js Release Working Group where she is involved with auditing commits for the long-term support (LTS) release lines and the creation of releases. 




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Reducing cross queue synchronization on systems with low memory latency across distributed processing nodes

A method for efficient dispatch/completion of a work element within a multi-node data processing system. The method comprises: selecting specific processing units from among the processing nodes to complete execution of a work element that has multiple individual work items that may be independently executed by different ones of the processing units; generating an allocated processor unit (APU) bit mask that identifies at least one of the processing units that has been selected; placing the work element in a first entry of a global command queue (GCQ); associating the APU mask with the work element in the GCQ; and responsive to receipt at the GCQ of work requests from each of the multiple processing nodes or the processing units, enabling only the selected specific ones of the processing nodes or the processing units to be able to retrieve work from the work element in the GCQ.




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Executing machine instructions comprising input/output pairs of execution nodes

A computing machine is disclosed having a memory system for storing a collection of execution nodes, a head for reading a sequence of symbols in the execution nodes in the memory system, and writing a sequence of symbols in the memory system. The machine is configured to execute a computation with a collection of pairs of execution nodes. Each pair of execution nodes represents a machine instruction. One execution node in the pair represents input of the machine instruction represented by the execution nodes. Another execution node in the pair represents output of the machine instruction represented by the execution nodes. Each execution node has a state of the machine, a sequence of symbols and a number.




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High performance computing (HPC) node having a plurality of switch coupled processors

A High Performance Computing (HPC) node comprises a motherboard, a switch comprising eight or more ports integrated on the motherboard, and at least two processors operable to execute an HPC job, with each processor communicably coupled to the integrated switch and integrated on the motherboard.




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Release management system for a multi-node application

A deployment system provides the ability to deploy a multi-node distributed application, such as a cloud computing platform application that has a plurality of interconnected nodes performing specialized jobs. The deployment system includes a release management system that builds and manages versioned releases of application services and/or software modules that are executed by the plurality of nodes of the cloud computing platform application. The release management system utilizes specification files to define a jobs and application packages and configurations needed to perform the jobs. The jobs and application packages are assembled into a self-contained release bundle that may be provided to the deployment system. The deployment system unwraps the release bundle and provides each job to deployment agents executing on VMs. The deployment agents apply the jobs to their respective VM (e.g., launching applications), thereby deploying the cloud computing platform application.




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Distributing capacity slices across storage system nodes

Various systems and methods are described for configuring a data storage system. In one embodiment, a plurality of actual capacities of a plurality of storage devices of the data storage system are identified and divided into a plurality of capacity slices. The plurality of capacity slices are combined into a plurality of chunks of capacity slices, each having a combination of characteristics of the underlying physical storage devices. The chunks of capacity slices are then mapped to a plurality of logical storage devices. A group of the plurality of logical storage devices is then organized into a redundant array of logical storage devices.




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Operating method of sensor node, operating method of data sink in sensor network, and sensor network

Provided is an operating method of a sensor node. The operating method of a sensor node includes receiving a sensing request, adjusting a sensing condition on the basis of the received sensing request, and sensing according to the adjusted sensing condition.




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Optical line termination node and passive optical network

An optical line termination node has a first connection arrangement for connecting a working fiber, a second connection arrangement for connecting a protection fiber, a transceiver arrangement having first primary link and a first secondary link, and protection switching means configured for being switched either in a working operating state or in a protection operating state.




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Titania-graphene anode electrode paper

A method for forming a nanocomposite material, the nanocomposite material formed thereby, and a battery made using the nanocomposite material. Metal oxide and graphene are placed in a solvent to form a suspension. The suspension is then applied to a current collector. The solvent is then evaporated to form a nanocomposite material. The nanocomposite material is then electrochemically cycled to form a nanocomposite material of at least one metal oxide in electrical communication with at least one graphene layer.




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Architectural floorplan for a structured ASIC manufactured on a 28 NM CMOS process lithographic node or smaller

A floorplan for a Structured ASIC chip is shown having a core region containing memory and VCLB logic cells surrounded by a plurality of IO connection fabrics that include a first IO connection fabric comprising IO sub-banks connecting the core of the chip to pins for external signals to the core, a first high-speed routing fabric disposed along the east-west vertical top of the core and connects the core to high-speed IO such as SerDes; a network-aware connection fabric connects the core to a microcontroller primarily for testing and repair of the memory in the core; and a second-high speed routing fabric is disposed on the north-south vertical sides of the core and communicates with the IO sub-banks. The VCLB Structured ASIC chip is manufactured on a 28 nm CMOS process lithographic node or smaller, having several metal layers and preferably is programmed on a single via layer.




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Balancing of the rotary anode of an X-ray tube

An X-ray tube with a rotatable anode for generating X-rays and an X-ray apparatus and a method for balancing the rotary anode of an X-ray tube include balancing of the rotary anode applicable to an anode mounted inside an X-ray tube. The rotatable anode includes an anode disc fixedly mounted to a rotatably driven support body, which is rotatably supported by a bearing arrangement. The anode includes at least one balancing cavity to adjust the center of gravity of the anode. The balancing cavity is partly filled with a balancing material being solid at operating temperature of the X-ray tube and liquid at a higher temperature. The balancing method includes determining an imbalance of the anode; heating liquefy balancing material; dislocating the balancing material inside the balancing cavity to compensate the imbalance; and cooling to solidify the balancing material.




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Latch for securing a compute node in a component storage rack

A latch selectively secures a compute node enclosure into a chassis bay. The latch comprises a frame securable to a proximal end of the compute node enclosure. A handle is pivotally secured to the frame intermediate a proximal end of the handle and a distal end of the handle so that the handle can be pivoted between a closed position and an open position. A proximal end of a pawl is pivotally coupled at to the distal end of the handle, wherein the pawl includes a landing at a distal end of the pawl and a latch key intermediate proximal and distal ends of the pawl. Movement of the handle positions the pawl into engagement with a slot in chassis bay to assist installation and removal of the compute node enclosure.




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Asynchronous operation of a rotary anode with reduced focal spot shake

A method for asynchronous operation of a rotary anode of an x-ray emitter, where a torque is exerted onto the rotary anode by an electromagnetic alternating field of a stator with a first frequency is provided. The method includes increasing the first frequency to a second frequency. The second frequency is a whole number multiple of an x-ray trigger frequency. The method also includes simultaneously changing an output of the alternating field such that a rotational frequency of the rotary anode remains unchanged.




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Reflective anode structure for a field emission lighting arrangement

The present invention relates to a field emission lighting arrangement, comprising a first field emission cathode, an anode structure comprising a phosphor layer, and an evacuated envelope inside of which the anode structure and the first field emission cathode are arranged, wherein the anode structure is configured to receive electrons emitted by the first field emission cathode when a voltage is applied between the anode structure and the first field emission cathode and to reflect light generated by the phosphor layer out from the evacuated chamber. Advantages of the invention include lower power consumption as well as an increase in light output of the field emission lighting arrangement.




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METHOD FOR ASSIGNING ADDRESSES TO NODES OF A BUS SYSTEM, AND INSTALLATION

A method for assigning addresses to nodes of a bus system, and installation, bus nodes being furnished with an identical delivery address, where (i) an assigning entity, particularly a central computer, start-up computer or bus node sends information to the delivery address via the bus system, (ii) the information includes a first address, (iii) an action is performed whose effect is detected by a first bus node, (iv) the first bus node accepts the first address, (v) the first bus node sends a response to the assigning entity, and (vi) steps (i) through (v) are repeated, each time with a further address for a further bus node.




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METHOD AND RADIO NETWORK NODE FOR SCHEDULING OF WIRELESS DEVICES IN A CELLULAR NETWORK

A method and a radio network node for scheduling wireless devices. The node assigns, to each wireless device, a D2D pair out of the D2D pairs based on spatial compatibilities for each of the D2D pairs with respect to each wireless device. The node estimates, for each wireless device and the assigned D2D pair, a first respective throughput for cellular communication and D2D communication, and estimates, for each wireless device, a second respective throughput for only cellular communication. The node schedules one or more of the wireless devices of the cellular network based on the first and second respective throughputs. Each of the wireless devices is scheduled for cellular communication together with the D2D communication of the assigned D2D pair when the first respective throughput exceeds the second respective throughput, or for only cellular communication when the first respective throughput is below the second respective throughput.




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METHODS FOR ALKALIATING ROLL ANODES

The present invention relates to processes that may be used singly or in combination to prevent lithium (or alkali metal) plating or dendrite buildup on bare substrate areas or edges of electrode rolls during alkaliation of a battery or electrochemical cell anode composed of a conductive substrate and coatings, in which the electrode rolls may be coated on one or both sides and may have exposed substrate on edges, or on continuous or discontinuous portions of either or both substrate surfaces.




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ANODE FOR MOLTEN CARBONATE FUEL CELL HAVING IMPROVED CREEP PROPERTY, METHOD FOR PREPARING THE SAME, AND MOLTEN CARBONATE FUEL CELL USING THE ANODE

Disclosed is an anode for a molten carbonate fuel cell (MCFC) having improved creep property by adding an additive for imparting creep resistance to nickel-aluminum alloy and nickel as materials for an anode. Improved sintering property, creep property and increased mechanical strength of a molten carbonate fuel cell may be obtained accordingly.




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PROTECTIVE LAYER SYSTEM FOR A METALLIC LITHIUM ANODE

A protective layer system for a metallic lithium-containing anode of a lithium cell, for example a lithium-sulfur cell and/or lithium-oxygen cell. To increase the service life and reliability of the cell, the protective layer system includes a lithium ion-conducting layer, in particular an inorganic layer, on the anode side. The anode-side layer has an anode contact side which rests against or which may be placed against the anode. At least one lithium ion-conducting layer, in particular a polymer layer, which contains at least one agent which is reactable with metallic lithium to form an electrically insulating solid is situated on a side of the anode-side layer opposite from the anode contact side. Moreover, the invention relates to an anode which is equipped with such a protective layer system, a lithium cell, and a lithium battery.




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BIODEGRADABLE GROUND CONTACT SLEEVE FOR A SEISMIC DATA ACQUISITION NODE

A biodegradable ground contact sleeve for a seismic data acquisition node includes a ground contact sleeve having a substantially tubular shaped body insertable into the surface of the earth and having an internal opening at one longitudinal end for receiving a seismic data acquisition node and making acoustic coupling thereto. The ground contact sleeve is formed of biodegradable material.




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DIFFERENTIAL SUMMING NODE

A summing node is provided for summing a first and second differential signals. Each of the first and second differential signals comprise respective direct and inverse signal components. The summing node comprises a first differential transistor pair comprising a first and second input and coupled to a first and second output. The summing node further comprises a second differential transistor pair comprising a third and fourth input and coupled to the first and second output. The first and fourth inputs are respectively coupled to the direct and inverse signal components of the first differential signal and the second and third inputs are respectively coupled to the direct and inverse signal components of the second differential signal.




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MULTI-LEVEL LADDER DAC WITH DUAL-SWITCH INTERCONNECT TO LADDER NODES

A multi-level DAC includes first and second level resistor ladders, and a dual-switch ladder interconnect reduces DNL at tap-point transitions between first-level ladder resistors. For each first level resistor N, the switch-interconnect network includes dual (first/second) switches connectable to a resistor-top node NT, and dual (third/fourth) switches selectively connectable to a resistor-bottom node NB. The first switch is operable to connect NT to a top tap switch operable to select NT as a top tap point, and the fourth interconnect switch is operable to connect NB to a bottom tap switch operable to select NB as a bottom tap point. The first and fourth switches are connected, forming an outer loop that includes top and bottom tap points. The second switch connects to a top second-level resistor RT, and the third switch connects to a bottom second-level resistor RB, forming an inner loop that includes the series-connected second-level resistors.




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MULTI-PARAMETRIC ENVIRONMENTAL DIAGNOSTICS AND MONITORING SENSOR NODE

The multi-parametric environmental diagnostics and monitoring sensor node (10) provides monitoring and diagnostics of a variety of different ambient environmental factors and is powered by multiple sources of renewable energy. The multi-parametric environmental diagnostics and monitoring sensor node (10) includes a base (38) and a plurality of environmental condition sensors (36a, 36b, 36c, 36d, 36e, 36f) mounted thereon. A controller (47) is also mounted on the base (38), the plurality of environmental condition sensors (36a, 36b, 36c, 36d, 36e, 36f) being in communication therewith. An external photovoltaic cell (18) is mounted to the base and an internal photovoltaic cell (34) is mounted in an opposed orientation on a cover (32). The external photovoltaic cell (18) and the internal photovoltaic cell (34) charge a power storage module (52), which powers the plurality of environmental condition sensors (36a, 36b, 36c, 36d, 36e, 36f) and the controller (47).