diff --git a/application/api/controller/Latex.php b/application/api/controller/Latex.php
new file mode 100644
index 0000000..ada2341
--- /dev/null
+++ b/application/api/controller/Latex.php
@@ -0,0 +1,338 @@
+<?php
+
+namespace app\api\controller;
+
+class Latex extends Base
+{
+    public function __construct(\think\Request $request = null)
+    {
+        parent::__construct($request);
+    }
+
+    public function generateLatexPdf()
+    {
+        $data = $this->request->post();
+        $rule = new Validate([
+            'p_article_id' => 'require|number'
+        ]);
+
+        if (!$rule->check($data)) {
+            return jsonError($rule->getError());
+        }
+
+        try {
+            // 获取文章信息
+            $p_info = $this->production_article_obj->where('p_article_id', $data['p_article_id'])->find();
+            if (!$p_info) {
+                return jsonError('文章实例不存在');
+            }
+
+            // 获取作者信息
+            $authors = $this->production_article_author_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->select();
+
+            // 获取机构信息
+            $organs = $this->production_article_organ_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->select();
+
+            // 获取正文内容
+            $main_contents = $this->production_article_main_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->order('p_main_id')->select();
+
+            // 获取参考文献
+            $references = $this->production_article_refer_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->order('index')->select();
+
+            // 构建LaTeX内容
+            $latex_content = $this->buildLatexContent($p_info, $authors, $organs, $main_contents, $references);
+
+            // 创建临时目录
+            $temp_dir = ROOT_PATH . 'public' . DS . 'temp_latex' . DS;
+            if (!is_dir($temp_dir)) {
+                mkdir($temp_dir, 0755, true);
+            }
+
+            // 生成唯一的文件名
+            $filename = 'article_' . $p_info['p_article_id'] . '_' . time();
+            $tex_file = $temp_dir . $filename . '.tex';
+            $pdf_file = $temp_dir . $filename . '.pdf';
+
+            // 写入LaTeX文件
+            file_put_contents($tex_file, $latex_content);
+
+            // 执行LaTeX编译命令生成PDF
+            $command = sprintf(
+                'cd %s && pdflatex -interaction=nonstopmode -output-directory=%s %s',
+                escapeshellarg($temp_dir),
+                escapeshellarg($temp_dir),
+                escapeshellarg($tex_file)
+            );
+
+            // 执行命令
+            $output = [];
+            $return_var = 0;
+            exec($command, $output, $return_var);
+
+            // 检查PDF是否生成成功
+            if (!file_exists($pdf_file) || filesize($pdf_file) == 0) {
+                return jsonError('PDF生成失败，请检查LaTeX内容或系统环境');
+            }
+
+            // 移动PDF到正式目录
+            $pdf_dir = ROOT_PATH . 'public' . DS . 'latex_pdfs' . DS;
+            if (!is_dir($pdf_dir)) {
+                mkdir($pdf_dir, 0755, true);
+            }
+
+            $final_pdf_path = $pdf_dir . $filename . '.pdf';
+            rename($pdf_file, $final_pdf_path);
+
+            // 清理临时文件
+            if (file_exists($tex_file)) {
+                unlink($tex_file);
+            }
+
+            // 清理辅助文件(.aux, .log等)
+            $aux_file = $temp_dir . $filename . '.aux';
+            $log_file = $temp_dir . $filename . '.log';
+            if (file_exists($aux_file)) unlink($aux_file);
+            if (file_exists($log_file)) unlink($log_file);
+
+            // 返回PDF路径
+            $relative_path = 'latex_pdfs/' . $filename . '.pdf';
+            return jsonSuccess([
+                'pdf_url' => $relative_path,
+                'message' => 'PDF生成成功'
+            ]);
+
+        } catch (\Exception $e) {
+            return jsonError('生成过程中发生错误: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 构建LaTeX文档内容
+     * @param $p_info
+     * @param $authors
+     * @param $organs
+     * @param $main_contents
+     * @param $references
+     * @return string
+     */
+    private function buildLatexContent($p_info, $authors, $organs, $main_contents, $references)
+    {
+        // 构建机构映射
+        $organ_map = [];
+        foreach ($organs as $index => $organ) {
+            $organ_map[$organ['p_article_organ_id']] = $index + 1;
+        }
+
+        // LaTeX文档开始
+        $latex = '\documentclass[twocolumn]{article}' . "\n";
+        $latex .= '\usepackage[utf8]{inputenc}' . "\n";
+        $latex .= '\usepackage[T1]{fontenc}' . "\n";
+        $latex .= '\usepackage{geometry}' . "\n";
+        $latex .= '\usepackage{graphicx}' . "\n";
+        $latex .= '\usepackage{amsmath}' . "\n";
+        $latex .= '\usepackage{amsfonts}' . "\n";
+        $latex .= '\usepackage{amssymb}' . "\n";
+        $latex .= '\usepackage{setspace}' . "\n";
+        $latex .= '\usepackage{titlesec}' . "\n";
+        $latex .= '\usepackage{hyperref}' . "\n";
+        $latex .= '\usepackage{caption}' . "\n";
+        $latex .= '\usepackage{multicol}' . "\n";
+        $latex .= '\usepackage{abstract}' . "\n";
+
+        $latex .= '\geometry{left=1.5cm,right=1.5cm,top=2.5cm,bottom=2.5cm}' . "\n";
+        $latex .= '\setstretch{1.5}' . "\n";
+
+        $latex .= '\title{' . $this->escapeLatexText($p_info['title']) . '}' . "\n";
+
+        // 处理作者和机构
+        if (!empty($authors)) {
+            $author_text = '';
+            $affiliations = [];
+
+            foreach ($authors as $author) {
+                if ($author_text !== '') {
+                    $author_text .= ', ';
+                }
+                $author_text .= $this->escapeLatexText($author['first_name'] . ' ' . $author['last_name']);
+
+                // 获取作者的机构
+                $author_organs = $this->production_article_author_to_organ_obj
+                    ->where('p_article_author_id', $author['p_article_author_id'])
+                    ->where('state', 0)
+                    ->select();
+
+                foreach ($author_organs as $ao) {
+                    if (isset($organ_map[$ao['p_article_organ_id']])) {
+                        $author_text .= '$^{' . $organ_map[$ao['p_article_organ_id']] . '}$';
+                    }
+                }
+
+                if ($author['is_report'] == 1) {
+                    $author_text .= '$^{*}$';
+                }
+            }
+
+            $latex .= '\author{' . $author_text . "\n";
+
+            // 添加机构信息
+            foreach ($organs as $index => $organ) {
+                $latex .= '\\\\$' . ($index + 1) . '$ ' . $this->escapeLatexText($organ['organ_name']) . "\n";
+            }
+            if (!empty($authors)) {
+                // 查找通讯作者
+                $corresponding_authors = array_filter($authors, function($author) {
+                    return $author['is_report'] == 1;
+                });
+
+                if (!empty($corresponding_authors)) {
+                    $corr_author = reset($corresponding_authors);
+                    $latex .= '\\\\$*$ Corresponding author: ' .
+                        $this->escapeLatexText($corr_author['email']) . "\n";
+                }
+            }
+
+            $latex .= '}' . "\n";
+        }
+
+        $latex .= '\date{}' . "\n";
+        $latex .= '\begin{document}' . "\n";
+        $latex .= '\maketitle' . "\n";
+
+        // 摘要
+        if (!empty($p_info['abstract'])) {
+            $latex .= '\begin{abstract}' . "\n";
+            $latex .= $this->escapeLatexText($p_info['abstract']) . "\n";
+            $latex .= '\end{abstract}' . "\n";
+        }
+
+        // 关键词
+        if (!empty($p_info['keywords'])) {
+            $latex .= '\textbf{Keywords:} ' . $this->escapeLatexText($p_info['keywords']) . "\n";
+            $latex .= '\sectionbreak' . "\n";
+        }
+
+        // 正文内容
+        $in_section = false;
+        $section_count = 0;
+
+        foreach ($main_contents as $content) {
+            $text = trim($content['content']);
+
+            // 跳过空内容
+            if (empty($text)) {
+                continue;
+            }
+
+            // 检查是否是标题
+            $clean_text = strip_tags($text);
+            $lower_text = strtolower($clean_text);
+
+            // 判断是否为章节标题
+            if (stripos($lower_text, 'introduction') === 0 ||
+                stripos($lower_text, 'methods') === 0 ||
+                stripos($lower_text, 'results') === 0 ||
+                stripos($lower_text, 'discussion') === 0 ||
+                stripos($lower_text, 'conclusion') === 0 ||
+                stripos($lower_text, 'references') === 0) {
+
+                // 结束前一节
+                if ($in_section) {
+                    $latex .= "\n" . '\sectionbreak' . "\n";
+                }
+
+                // 开始新节
+                $section_count++;
+                $section_title = $this->escapeLatexText($clean_text);
+                $latex .= '\section{' . $section_title . '}' . "\n";
+                $in_section = true;
+            }
+            // 检查是否是图片或表格占位符
+            else if (preg_match('/<img[^>]*imageId=[\'"]([^\'"]+)[\'"][^>]*>/i', $text, $img_matches)) {
+                $image_id = $img_matches[1];
+                // 这里可以添加图片处理逻辑
+                $latex .= '% 图片插入位置 (ID: ' . $image_id . ')' . "\n";
+                $latex .= '\begin{figure}[htbp]' . "\n";
+                $latex .= '\centering' . "\n";
+                $latex .= '\includegraphics[width=0.8\textwidth]{image_' . $image_id . '}' . "\n";
+                $latex .= '\caption{图片说明}' . "\n";
+                $latex .= '\end{figure}' . "\n";
+            }
+            else if (preg_match('/<table[^>]*tableId=[\'"]([^\'"]+)[\'"][^>]*>/i', $text, $table_matches)) {
+                $table_id = $table_matches[1];
+                // 这里可以添加表格处理逻辑
+                $latex .= '% 表格插入位置 (ID: ' . $table_id . ')' . "\n";
+                $latex .= '\begin{table}[htbp]' . "\n";
+                $latex .= '\centering' . "\n";
+                $latex .= '\caption{表格说明}' . "\n";
+                $latex .= '\begin{tabular}{|c|c|c|}' . "\n";
+                $latex .= '\hline' . "\n";
+                $latex .= '列1 & 列2 & 列3 \\\\' . "\n";
+                $latex .= '\hline' . "\n";
+                $latex .= '% 表格数据' . "\n";
+                $latex .= '\hline' . "\n";
+                $latex .= '\end{tabular}' . "\n";
+                $latex .= '\end{table}' . "\n";
+            }
+            // 普通段落文本
+            else {
+                // 移除HTML标签并转义特殊字符
+                $plain_text = $this->escapeLatexText(strip_tags($text));
+                $latex .= $plain_text . "\n\n";
+            }
+        }
+
+        // 参考文献
+        if (!empty($references)) {
+            $latex .= '\section*{References}' . "\n";
+            $latex .= '\begin{thebibliography}{99}' . "\n";
+
+            foreach ($references as $index => $ref) {
+                $ref_text = isset($ref['refer_frag']) ? $ref['refer_frag'] : $ref['refer_content'];
+                $latex .= '\bibitem{} ' . $this->escapeLatexText($ref_text) . "\n";
+            }
+
+            $latex .= '\end{thebibliography}' . "\n";
+        }
+
+        $latex .= '\end{document}' . "\n";
+
+        return $latex;
+    }
+
+    /**
+     * 转义LaTeX特殊字符
+     * @param string $text
+     * @return string
+     */
+    private function escapeLatexText($text)
+    {
+        // 移除HTML标签
+        $text = strip_tags($text);
+
+        // 转义LaTeX特殊字符
+        $escape_chars = [
+            '\\' => '\\textbackslash{}',
+            '&' => '\\&',
+            '%' => '\\%',
+            '$' => '\\$',
+            '#' => '\\#',
+            '_' => '\\_',
+            '{' => '\\{',
+            '}' => '\\}',
+            '~' => '\\textasciitilde{}',
+            '^' => '\\textasciicircum{}',
+            '"' => '\\"{}',
+            '\'' => '\\\'{}',
+            '<' => '\\textless{}',
+            '>' => '\\textgreater{}',
+        ];
+
+        foreach ($escape_chars as $char => $replacement) {
+            $text = str_replace($char, $replacement, $text);
+        }
+
+        return $text;
+    }
+
+
+}
\ No newline at end of file
diff --git a/application/api/controller/Production.php b/application/api/controller/Production.php
index 5d9cac8..769f20f 100644
--- a/application/api/controller/Production.php
+++ b/application/api/controller/Production.php
@@ -1250,338 +1250,6 @@ class Production extends Base
 //        return jsonSuccess([]);
 //    }
 
-/**
- * 生成LaTeX文档并转换为PDF
- * @return \think\response\Json
- */
-public function generateLatexPdf()
-{
-    $data = $this->request->post();
-    $rule = new Validate([
-        'p_article_id' => 'require|number'
-    ]);
-
-    if (!$rule->check($data)) {
-        return jsonError($rule->getError());
-    }
-
-    try {
-        // 获取文章信息
-        $p_info = $this->production_article_obj->where('p_article_id', $data['p_article_id'])->find();
-        if (!$p_info) {
-            return jsonError('文章实例不存在');
-        }
-
-        // 获取作者信息
-        $authors = $this->production_article_author_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->select();
-
-        // 获取机构信息
-        $organs = $this->production_article_organ_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->select();
-
-        // 获取正文内容
-        $main_contents = $this->production_article_main_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->order('p_main_id')->select();
-
-        // 获取参考文献
-        $references = $this->production_article_refer_obj->where('p_article_id', $data['p_article_id'])->where('state', 0)->order('index')->select();
-
-        // 构建LaTeX内容
-        $latex_content = $this->buildLatexContent($p_info, $authors, $organs, $main_contents, $references);
-
-        // 创建临时目录
-        $temp_dir = ROOT_PATH . 'public' . DS . 'temp_latex' . DS;
-        if (!is_dir($temp_dir)) {
-            mkdir($temp_dir, 0755, true);
-        }
-
-        // 生成唯一的文件名
-        $filename = 'article_' . $p_info['p_article_id'] . '_' . time();
-        $tex_file = $temp_dir . $filename . '.tex';
-        $pdf_file = $temp_dir . $filename . '.pdf';
-
-        // 写入LaTeX文件
-        file_put_contents($tex_file, $latex_content);
-
-        // 执行LaTeX编译命令生成PDF
-        $command = sprintf(
-            'cd %s && pdflatex -interaction=nonstopmode -output-directory=%s %s',
-            escapeshellarg($temp_dir),
-            escapeshellarg($temp_dir),
-            escapeshellarg($tex_file)
-        );
-
-        // 执行命令
-        $output = [];
-        $return_var = 0;
-        exec($command, $output, $return_var);
-
-        // 检查PDF是否生成成功
-        if (!file_exists($pdf_file) || filesize($pdf_file) == 0) {
-            return jsonError('PDF生成失败，请检查LaTeX内容或系统环境');
-        }
-
-        // 移动PDF到正式目录
-        $pdf_dir = ROOT_PATH . 'public' . DS . 'latex_pdfs' . DS;
-        if (!is_dir($pdf_dir)) {
-            mkdir($pdf_dir, 0755, true);
-        }
-
-        $final_pdf_path = $pdf_dir . $filename . '.pdf';
-        rename($pdf_file, $final_pdf_path);
-
-        // 清理临时文件
-        if (file_exists($tex_file)) {
-            unlink($tex_file);
-        }
-
-        // 清理辅助文件(.aux, .log等)
-        $aux_file = $temp_dir . $filename . '.aux';
-        $log_file = $temp_dir . $filename . '.log';
-        if (file_exists($aux_file)) unlink($aux_file);
-        if (file_exists($log_file)) unlink($log_file);
-
-        // 返回PDF路径
-        $relative_path = 'latex_pdfs/' . $filename . '.pdf';
-        return jsonSuccess([
-            'pdf_url' => $relative_path,
-            'message' => 'PDF生成成功'
-        ]);
-
-    } catch (\Exception $e) {
-        return jsonError('生成过程中发生错误: ' . $e->getMessage());
-    }
-}
-
-/**
- * 构建LaTeX文档内容
- * @param $p_info
- * @param $authors
- * @param $organs
- * @param $main_contents
- * @param $references
- * @return string
- */
-private function buildLatexContent($p_info, $authors, $organs, $main_contents, $references)
-{
-    // 构建机构映射
-    $organ_map = [];
-    foreach ($organs as $index => $organ) {
-        $organ_map[$organ['p_article_organ_id']] = $index + 1;
-    }
-
-    // LaTeX文档开始
-    $latex = '\documentclass[twocolumn]{article}' . "\n";
-    $latex .= '\usepackage[utf8]{inputenc}' . "\n";
-    $latex .= '\usepackage[T1]{fontenc}' . "\n";
-    $latex .= '\usepackage{geometry}' . "\n";
-    $latex .= '\usepackage{graphicx}' . "\n";
-    $latex .= '\usepackage{amsmath}' . "\n";
-    $latex .= '\usepackage{amsfonts}' . "\n";
-    $latex .= '\usepackage{amssymb}' . "\n";
-    $latex .= '\usepackage{setspace}' . "\n";
-    $latex .= '\usepackage{titlesec}' . "\n";
-    $latex .= '\usepackage{hyperref}' . "\n";
-    $latex .= '\usepackage{caption}' . "\n";
-    $latex .= '\usepackage{multicol}' . "\n";
-    $latex .= '\usepackage{abstract}' . "\n";
-
-    $latex .= '\geometry{left=1.5cm,right=1.5cm,top=2.5cm,bottom=2.5cm}' . "\n";
-    $latex .= '\setstretch{1.5}' . "\n";
-
-    $latex .= '\title{' . $this->escapeLatexText($p_info['title']) . '}' . "\n";
-
-    // 处理作者和机构
-    if (!empty($authors)) {
-        $author_text = '';
-        $affiliations = [];
-
-        foreach ($authors as $author) {
-            if ($author_text !== '') {
-                $author_text .= ', ';
-            }
-            $author_text .= $this->escapeLatexText($author['first_name'] . ' ' . $author['last_name']);
-
-            // 获取作者的机构
-            $author_organs = $this->production_article_author_to_organ_obj
-                ->where('p_article_author_id', $author['p_article_author_id'])
-                ->where('state', 0)
-                ->select();
-
-            foreach ($author_organs as $ao) {
-                if (isset($organ_map[$ao['p_article_organ_id']])) {
-                    $author_text .= '$^{' . $organ_map[$ao['p_article_organ_id']] . '}$';
-                }
-            }
-
-            if ($author['is_report'] == 1) {
-                $author_text .= '$^{*}$';
-            }
-        }
-
-        $latex .= '\author{' . $author_text . "\n";
-
-        // 添加机构信息
-        foreach ($organs as $index => $organ) {
-            $latex .= '\\\\$' . ($index + 1) . '$ ' . $this->escapeLatexText($organ['organ_name']) . "\n";
-        }
-        if (!empty($authors)) {
-            // 查找通讯作者
-            $corresponding_authors = array_filter($authors, function($author) {
-                return $author['is_report'] == 1;
-            });
-
-            if (!empty($corresponding_authors)) {
-                $corr_author = reset($corresponding_authors);
-                $latex .= '\\\\$*$ Corresponding author: ' .
-                         $this->escapeLatexText($corr_author['email']) . "\n";
-            }
-        }
-
-        $latex .= '}' . "\n";
-    }
-
-    $latex .= '\date{}' . "\n";
-    $latex .= '\begin{document}' . "\n";
-    $latex .= '\maketitle' . "\n";
-
-    // 摘要
-    if (!empty($p_info['abstract'])) {
-        $latex .= '\begin{abstract}' . "\n";
-        $latex .= $this->escapeLatexText($p_info['abstract']) . "\n";
-        $latex .= '\end{abstract}' . "\n";
-    }
-
-    // 关键词
-    if (!empty($p_info['keywords'])) {
-        $latex .= '\textbf{Keywords:} ' . $this->escapeLatexText($p_info['keywords']) . "\n";
-        $latex .= '\sectionbreak' . "\n";
-    }
-
-    // 正文内容
-    $in_section = false;
-    $section_count = 0;
-
-    foreach ($main_contents as $content) {
-        $text = trim($content['content']);
-
-        // 跳过空内容
-        if (empty($text)) {
-            continue;
-        }
-
-        // 检查是否是标题
-        $clean_text = strip_tags($text);
-        $lower_text = strtolower($clean_text);
-
-        // 判断是否为章节标题
-        if (stripos($lower_text, 'introduction') === 0 ||
-            stripos($lower_text, 'methods') === 0 ||
-            stripos($lower_text, 'results') === 0 ||
-            stripos($lower_text, 'discussion') === 0 ||
-            stripos($lower_text, 'conclusion') === 0 ||
-            stripos($lower_text, 'references') === 0) {
-
-            // 结束前一节
-            if ($in_section) {
-                $latex .= "\n" . '\sectionbreak' . "\n";
-            }
-
-            // 开始新节
-            $section_count++;
-            $section_title = $this->escapeLatexText($clean_text);
-            $latex .= '\section{' . $section_title . '}' . "\n";
-            $in_section = true;
-        }
-        // 检查是否是图片或表格占位符
-        else if (preg_match('/<img[^>]*imageId=[\'"]([^\'"]+)[\'"][^>]*>/i', $text, $img_matches)) {
-            $image_id = $img_matches[1];
-            // 这里可以添加图片处理逻辑
-            $latex .= '% 图片插入位置 (ID: ' . $image_id . ')' . "\n";
-            $latex .= '\begin{figure}[htbp]' . "\n";
-            $latex .= '\centering' . "\n";
-            $latex .= '\includegraphics[width=0.8\textwidth]{image_' . $image_id . '}' . "\n";
-            $latex .= '\caption{图片说明}' . "\n";
-            $latex .= '\end{figure}' . "\n";
-        }
-        else if (preg_match('/<table[^>]*tableId=[\'"]([^\'"]+)[\'"][^>]*>/i', $text, $table_matches)) {
-            $table_id = $table_matches[1];
-            // 这里可以添加表格处理逻辑
-            $latex .= '% 表格插入位置 (ID: ' . $table_id . ')' . "\n";
-            $latex .= '\begin{table}[htbp]' . "\n";
-            $latex .= '\centering' . "\n";
-            $latex .= '\caption{表格说明}' . "\n";
-            $latex .= '\begin{tabular}{|c|c|c|}' . "\n";
-            $latex .= '\hline' . "\n";
-            $latex .= '列1 & 列2 & 列3 \\\\' . "\n";
-            $latex .= '\hline' . "\n";
-            $latex .= '% 表格数据' . "\n";
-            $latex .= '\hline' . "\n";
-            $latex .= '\end{tabular}' . "\n";
-            $latex .= '\end{table}' . "\n";
-        }
-        // 普通段落文本
-        else {
-            // 移除HTML标签并转义特殊字符
-            $plain_text = $this->escapeLatexText(strip_tags($text));
-            $latex .= $plain_text . "\n\n";
-        }
-    }
-
-    // 参考文献
-    if (!empty($references)) {
-        $latex .= '\section*{References}' . "\n";
-        $latex .= '\begin{thebibliography}{99}' . "\n";
-
-        foreach ($references as $index => $ref) {
-            $ref_text = isset($ref['refer_frag']) ? $ref['refer_frag'] : $ref['refer_content'];
-            $latex .= '\bibitem{} ' . $this->escapeLatexText($ref_text) . "\n";
-        }
-
-        $latex .= '\end{thebibliography}' . "\n";
-    }
-
-    $latex .= '\end{document}' . "\n";
-
-    return $latex;
-}
-
-/**
- * 转义LaTeX特殊字符
- * @param string $text
- * @return string
- */
-private function escapeLatexText($text)
-{
-    // 移除HTML标签
-    $text = strip_tags($text);
-
-    // 转义LaTeX特殊字符
-    $escape_chars = [
-        '\\' => '\\textbackslash{}',
-        '&' => '\\&',
-        '%' => '\\%',
-        '$' => '\\$',
-        '#' => '\\#',
-        '_' => '\\_',
-        '{' => '\\{',
-        '}' => '\\}',
-        '~' => '\\textasciitilde{}',
-        '^' => '\\textasciicircum{}',
-        '"' => '\\"{}',
-        '\'' => '\\\'{}',
-        '<' => '\\textless{}',
-        '>' => '\\textgreater{}',
-    ];
-
-    foreach ($escape_chars as $char => $replacement) {
-        $text = str_replace($char, $replacement, $text);
-    }
-
-    return $text;
-}
-
-
-
-
     public function addProductTopic(){
         $data = $this->request->post();
         $rule = new Validate([
@@ -1705,8 +1373,8 @@ private function escapeLatexText($text)
         $typesetInfo['website'] = $journal_info['website'];
         $typesetInfo['acknowledgment'] = $p_info['acknowledgment'];
 
-        $received_info = $this->article_msg_obj->where("article_id",$p_info['article_id'])->where("state_from",4)->where("state_to",1)->find();
-        $received_data = $received_info?$received_info['ctime']:$article_info['ctime'];
+//        $received_info = $this->article_msg_obj->where("article_id",$p_info['article_id'])->where("state_from",4)->where("state_to",1)->find();
+        $received_data = $article_info['received_time']>0?$article_info['received_time']:$article_info['ctime'];
         $typesetInfo['received_date'] = date("d F Y", $received_data);
 
         $super_num = $this->article_author_obj->where("article_id",$p_info['article_id'])->where("state",0)->where("is_super",1)->count();