Solar Driven Gas Phase Advanced Oxidation Processes for Methane Removal – Challenges and Perspectives

Methane (CH(4)) is a potent greenhouse gas and the second highest contributor to global warming. CH(4) emissions are still growing at an alarmingly high pace. To limit global warming to 1.5 °C, one of the most effective strategies is to reduce rapidly the CH(4) emissions by developing large‐scale methane removal methods. The purpose of this perspective paper is threefold. (1) To highlight the technology gap dealing with low concentration CH(4) (at many emission sources and in the atmosphere). (2) To analyze the challenges and prospects of solar‐driven gas phase advanced oxidation processes for CH(4) removal. And (3) to propose some ideas, which may help to develop solar‐driven gas phase advanced oxidation processes and make them deployable at a climate significant scale

Magnetic Feshbach resonances in collisions of 23Na40K with 40K

We present measurements of more than 80 magnetic Feshbach resonances in collisions of ultracold 23Na40K with 40K. We assign quantum numbers to a group of low-field resonances and show that they are probably due to long-range states of the triatomic complex in which the quantum numbers of the separated atom and molecule are approximately preserved. The resonant states are not members of chaotic bath of short-range states. Similar resonances are expected to be a common feature of alkali-metal diatom + atom systems

Icariin Ameliorates Streptozotocin-Induced Diabetic Retinopathy in Vitro and in Vivo

This study investigated the effect of Icariin (ICA) supplementation on diabetic retinopathy (DR) in a streptozotocin-induced diabetic rat model system. Fifty Sprague Dawley rats were randomly distributed into a control group and a streptozotocin-induced diabetes group. Diabetic rats were randomly divided into two groups; one group received ICA 5 mg/kg/day for 12 weeks by oral gavage; the other group received saline gavage as a placebo. Retinal morphological changes, endothelial markers (RECA), collagen IV (Col-IV), vascular endothelial growth factor (VEGF), and neuropathic changes (Thy-1 and Brn3a expression) of the retinal ganglion cells (RGCs) were investigated. The effects of ICA at various concentrations (0, 101, 102, 103 nmol/mL) on neurite growth were investigated also in retinal ganglion cells (RGC) cultured from both diabetic and normal animals. Numerous pathological changes (deceased expression of RECA, VEGF, Thy-1, and Brn3a as well as decreased Collagen IV and Müller cell content) were noted in the retinal vessels of diabetic rats; these changes were attenuated in diabetic animals that received ICA. ICA enhanced neurite growth in RGC from both normal rats and diabetic rats in a dose dependent fashion. ICA may be useful in the treatment of diabetic retinopathy. Further investigations are indicated

Data updating method and device, storage space setting method and device, chip and equipment

The invention discloses a data updating method, a storage space setting method and device, a chip and equipment. In order to solve the technical problems that in the prior art, the classification number of data reading layers in a neural mimicry chip is fixed, the occupied area of the chip is large, and shared storage cannot be achieved, a pulse sequence output by a pulse neural network is read through the data reading layers of a memory. The method comprises the steps of: analyzing the pulse sequence to determine a prediction type of the pulse neural network for the input data; determining a target storage address corresponding to the prediction type in a storage address sequence of a memory; and updating the pulse aggregation analysis information stored in the first storage space and the pulse counting statistical information stored in the second storage space according to the pulse sequence. Based on the technical means, the technical effects of improving the data storage and updating efficiency in the dynamic readout layer, dynamically allocating the moving average value memory, reducing the chip area, dynamically configuring the number of output classes and the like are achieved